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Particular row or column control (e.g., shift register)

Subclass of:

345 - Computer graphics processing and selective visual display systems

345030000 - PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT)

345055000 - Display elements arranged in matrix (e.g., rows and columns)

345084000 - Light-controlling display elements

345087000 - Liquid crystal display elements (LCD)

345098000 - Specific display element control means (e.g., latches, memories, logic)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
345100000 Particular row or column control (e.g., shift register) 89
20090195493IMAGE DISPLAY METHOD AND APPARATUS - An image display method and apparatus for generating display data from predetermined high-order bits of original image data, the display data reflecting an error of low-order bits in the original image data. The display data is used to drive each of pixels arranged in line and column directions. The high-order three bits of six-bit original image data are regarded as intra-frame process data. A process value is determined based on the low-order three bits of the original image data, on a frame number, on a line number and on a column number. That process value is added to the least significant bit of the intra-frame process value made of the high-order three bits, whereby three-bit display data is generated. The addition of the process value evenly distributes the gray level error of the low-order three bits within each frame and between frames for simulated high quality gray level display.08-06-2009
20090121998Display Apparatus and Method For Driving The Same - A liquid crystal display apparatus (05-14-2009
20130033417SCAN DRIVER, DISPLAY DEVICE HAVING THE SAME AND METHOD OF DRIVING A DISPLAY DEVICE - A scan driver drives a display device having a plurality of gate lines transferring scan signals, and a plurality of source lines transferring data signals. The scan driver includes a shift register and a multiple signal applying unit. The shift register includes a plurality of cascade-connected stages, each stage having an output terminal electrically connected to a respective one of the plurality of gate lines. The multiple signal applying unit applies a sub scan signal and a main scan signal. The sub scan signal and the main scan signal sequentially activate each of the plurality of gate lines. Therefore, the scan lines receive the scan signal twice, so that the liquid crystal capacitors electrically connected to the gate lines receive the data voltage twice. As a result, even though the time for charging the liquid crystal capacitors may be reduced, the liquid crystal capacitors may be fully charged to enhance display quality.02-07-2013
20100109996METHOD OF DRIVING A GATE LINE, GATE DRIVE CIRCUIT FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE GATE DRIVE CIRCUIT - There is provided a method of driving a gate line, a gate drive circuit for performing the method, and a display apparatus having the gate drive circuit. In the method, a plurality of gate signals, generated from a plurality of shift registers connected to a plurality of gate lines, is applied to the gate lines. An output of the gate signals is blocked during a vertical blanking interval, and then a gate off voltage is applied to the gate lines. Therefore, an output signal of the gate drive circuit may maintain a gate off voltage during a vertical blanking interval in which a clock signal is not applied to a gate drive circuit.05-06-2010
20100109995GATE DRIVING DEVICE UTILIZED IN LCD DEVICE - The present invention provides a gate driving device utilized in an LCD device, wherein the LCD device includes a plurality of gate lines, and the gate driving device includes: a plurality of output buffer units, at least a first switch unit, a plurality of second switch units, and a control module. The gate driving device disclosed in the present invention can utilize charge sharing to reduce the power consumption, so as to attain the purpose of efficiently saving the power.05-06-2010
20090046050Display driver, electro-optical device, and control method for display driver - A display driver includes: a data input section to which display data or command data is input; a display processing section which includes a data line driver section driving the data lines based on the display data input through the data input section; a control register for controlling the display processing section; a command signal generation section which generates a command signal which changes at a predetermined timing and is used to identify the command data; a command extraction section which extracts the command data from data such as the display data input through the data input section based on the command signal; and a decoder which decodes the command data extracted by the command extraction section. A value corresponding to a decoding result of the command data is set in the control register. The display processing section is controlled based on the value set in the control register.02-19-2009
20090046049REDUNDANCY SHIFT REGISTER CIRCUIT FOR DRIVER CIRCUIT IN ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE - An active matrix display device comprises a substrate having an insulating surface, a plurality of pixel electrodes arranged in a matrix form over the substrate, and a plurality of switching elements operationally connected to the pixel electrodes. Each of the switching elements further comprise a thin film transistor. The display device further includes a display medium comprising an emissive material that is capable of electrically changing luminous strength disposed at each of the pixel electrodes, and a driver circuit that includes a plurality of thin film transistors for driving the plurality of switching elements. Each of the plurality of thin film transistors comprise a crystallized semiconductor layer, a gate insulating film adjacent to the crystallized semiconductor layer and a gate electrode adjacent to the gate insulating film.02-19-2009
20100001942LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device comprises a pixel matrix including a plurality of subpixels, wherein the voltage polarities of two horizontal adjacent subpixels are opposite to one another, and the voltage polarity of one subpixel in four serial subpixels along a diagonal direction is opposite to the voltage polarities of the other three subpixels.01-07-2010
20090021466SEMICONDUCTOR CIRCUIT, DISPLAY APPARATUS EMPLOYING THE SAME, AND DRIVING METHOD THEREFOR - Disclosed is a display apparatus including two scanning circuits of the same configuration and layout, arranged on either sides of the display part. As long as one of the scanning circuits is in operation, the other scanning circuit is in a state in which no output signal is output.01-22-2009
20090115717Display method for liquid crystal panel, and display apparatus - A display method for a liquid crystal panel is provided. The method includes a step of scanning pixels, arranged in a matrix, in an horizontal direction and in a vertical direction, to write video signals, thereby performing display; and a step of delaying the vertical-direction scanning for writing the video signals by a predetermined amount of time and writing a first predetermined fixed-level signal to all pixels in a row specified by the vertical-direction scanning delayed by the predetermined amount of time, in a predetermined time in the horizontal blanking period, thereby performing display.05-07-2009
20090303169Scanning drive circuit and display device including the same - Disclosed herein is a display device, including display elements two-dimensionally disposed in a matrix; scanning lines, initialization control lines, and display control lines extending in a first direction; data lines extending in a second direction different from the first direction; and a scanning drive circuit.12-10-2009
20090040168LIQUID CRYSTAL DISPLAY WITH BLOCKING CIRCUITS - A gate driver of a liquid crystal display includes a plurality of cascaded gate-driving circuits for outputting a plurality of scanning signals. Each of the gate-driving circuits includes a shift register for outputting scanning signals according to the clock pulses and the scanning signal outputted by the former gate-driving circuit, and a blocking circuit for blocking the scanning signals a predetermined time period. Thus the scanning signals generated by adjacent gate-driving circuits do not overlap, and the image quality of the liquid crystal display can be improved.02-12-2009
20090295704Shift Register Circuit, Driving Circuit of Display Device, and Display Device Using the Driving Circuit - There is provided a driving circuit which is simple and has a small occupied area. A shift register circuit of the present invention includes a plurality of register circuits. Each of the register circuits includes a clocked inverter circuit and an inverter circuit. Both are connected in series with each other so that an output signal of the clocked inverter circuit becomes an input signal of the inverter circuit. Further, the register circuit includes a signal line by which an output signal of the inverter circuit is transmitted. Since a number of elements are connected to the signal line and parasitic capacitance is large, it has a high load. The shift register circuit of the present invention uses the fact that since the parasitic capacitance of the signal line is large, it has a high load.12-03-2009
20090267887DATA DRIVING CIRCUIT, DISPLAY APPARATUS AND CONTROL METHOD OF DISPLAY APPARATUS - A data driving circuit includes a shift register unit and a level shift unit. The level shift unit is electrically connected with the shift register unit and a plurality of data lines, respectively. The shift register unit receives a clock signal and at least one input image signal, and generates an output image signal. The level shift unit receives the output image signal, and generates a plurality of display signals for outputting to the data lines. A display apparatus and a control method thereof are also disclosed.10-29-2009
20110012823LIQUID CRYSTAL DISPLAY AND SHIFT REGISTER DEVICE THEREOF - A liquid crystal display and a shift register device thereof are provided. The shift register device includes a plurality of shift registers connected in series. In the invention, the channel lengths of the transistors, which are responsible to stop outputting scan signal, in the shift register are manufactured greater than the channel lengths of the transistors, which are responsible to output the scan signal, in the shift register. As a result, the degree of influence that the leakage currents of the N-type transistors being responsible to stop outputting the scan signal in the shift register affect the transistors being responsible to output the scan signal when the transistors being responsible to stop outputting the scan signal are in the sub-threshold region is reduced. And thus each of the shift registers is able to output the scan signal normally.01-20-2011
20090058789Digital play system, LCD display module and display control method - The present invention provides a digital play system, comprising a signal conversion unit to receive a video signal and convert it into image data; and a LCD display module consisting of a timing controller to receive said image data and output row control signals and pixel data, a row driver to receive row control signals and output row driving signals, and a display panel to receive the row driving signals and pixel data, wherein the timing controller controls the row driver to output odd row driving signals and even row driving signals to display alternately odd-row array and even-row array of the display panel.03-05-2009
20130063331GATE DRIVING CIRCUIT HAVING IMPROVED TOLERANCE TO GATE VOLTAGE RIPPLE AND DISPLAY DEVICE HAVING THE SAME - A gate driving circuit and a display device having the same, a pull-up unit pulls up a current gate signal by using a first clock signal during a first period of one frame. A pull-up driver coupled to the pull-up unit receives a carry signal from one of the previous stages to turn on the pull-up unit. A pull-up unit receives a gate signal from one of the next stages, discharges the current gate signal to an off voltage level, and turns off the pull-up unit. A holder holds the current gate signal at the voltage level. An inverter turns on/off the holder in response to a first clock signal. A ripple preventer has a source and a gate coupled in common to an output terminal of the pull-up unit and a drain coupled to an input terminal of the inverter, and includes a ripple preventing diode for preventing a ripple from being applied to the inverter.03-14-2013
20090278782Gate Driving Waveform Control - A gate driver and associated method for a double gate liquid crystal display (LCD) is disclosed. A gate driving signal generating circuit, such as coupled shift registers, generates the gate driving signals in response to horizontal synchronization signal. In one embodiment, a phase control circuit, such as logic AND gates, is coupled to receive the outputs of the shift registers for determining phase relationship between the outputs of the shift registers and the horizontal synchronization signal.11-12-2009
20120112992SEMICONDUCTOR CIRCUIT AND DISPLAY APPARATUS EMPLOYING THE SAME - Disclosed is a display apparatus including two scanning circuits of the same configuration and layout, arranged on either sides of the display part. As long as one of the scanning circuits is in operation, the other scanning circuit is in a state in which no output signal is output.05-10-2012
20120235890BI-DIRECTIONAL SHIFT REGISTER - A shift register of an LCD device includes a plurality of shift register units coupled in series. Each shift register unit includes an input circuit and a pull-down circuit having symmetric structures which enable the LCD device to function in a forward-scan mode and a reverse-scan mode.09-20-2012
20110025590DISPLAY DEVICE HAVING BI-DIRECTIONAL SCAN MECHANISM AND GATE SIGNAL SCANNING METHOD THEREOF - A display device having bi-directional scan mechanism includes a plurality of gate lines, a first shift register circuit and a second shift register circuit. The first shift register circuit includes a plurality of forward shift register stages. The second shift register circuit includes a plurality of backward shift register stages. Each of the gate lines is electrically connected to both a corresponding forward shift register stage and a corresponding backward shift register stage. When the first shift register circuit is enabled, the forward shift register stages are employed to provide plural forward gate signals sequentially enabled for scanning the gate lines based on a first sequence. When the second shift register circuit is enabled, the backward shift register stages are employed to provide plural backward gate signals sequentially enabled for scanning the gate lines based on a second sequence opposite to the first sequence.02-03-2011
20100171689Shift register and organic light emitting display device using the same - A shift register has a plurality of stages driven by first, second, and third clock signals. Each stage includes a first transistor coupled between a first power source and an output node, and having a gate electrode coupled to a first node, a second transistor coupled between the output node and the third input line, and having a gate electrode coupled to a second node, a third transistor coupled between the first power source and the first node, and having a gate electrode coupled to an input terminal receiving the start pulse or an output signal of a previous stage, a fourth transistor coupled between the first node and a second power source, and having a gate electrode coupled to the first input line, and a fifth transistor coupled between the input terminal and the second node, and having a gate electrode coupled to the second input line.07-08-2010
20110102310SHIFT REGISTER WITH IMAGE RETENTION RELEASE AND METHOD FOR IMAGE RETENTION RELEASE - A flat panel display, a shift register with image retention release and method for releasing image retention are provided. An output end of the shift register couples to a gate line of a display panel. A first end of a first transistor couples to the output end of the shift register. A second end of the first transistor couples to a system voltage VDD or a reference voltage VSS. A first end of a capacitor couples to a control end of the first transistor. A second end of the capacitor couples to the reference voltage VSS. During a power-off period, the reference voltage VSS is pulled high for turning on the first transistor, therefore the voltage of the gate line is pulled high.05-05-2011
20090278784ANALOG BUFFER CIRCUIT CAPABLE OF COMPENSATING THRESHOLD VOLTAGE VARIATION OF TRANSISTOR - A buffer circuit includes a driving circuit, a biasing circuit, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a first capacitor, and a second capacitor. Both the first and second switches are turned on in response to a high voltage level of a first switching signal. Both the third and fourth switches are turned on in response to a high voltage level of a second switching signal. Both the fifth and sixth switches are turned on in response to a high voltage level of a third switching signal. The first capacitor stores a voltage drop of the driving circuit when the first switching signal is at high voltage level, and the second capacitor stores the voltage drop of the driving circuit when the second switching signal is at high voltage level. Output of the buffer circuit is almost identical to input due to an offset of the voltage stored in the second capacitor when the third switching signal is at high voltage level.11-12-2009
20100033419LIQUID CRYSTAL DISPLAY WITH COLUMN INVERSION DRIVING METHOD - A liquid crystal display (LCD) with a column inversion driving method is provided. The LCD with the column inversion driving method includes a first data line, a second data line, and a first switch. The first switch is electrically connected to the first data line and the second data line. The first data line is adjacent to the second data line. When the LCD with the column inversion driving method is turned off, the first switch is turned on for conducting the first data line and the second data line, so as to neutralize the charges remained in pixels.02-11-2010
20090160753DISPLAY DEVICE - When semi-amorphous TFTs are used for forming a signal line driver circuit and a pixel, a large amplitude is required for driving the pixel, and a large power supply voltage is thus needed. On the other hand, when a shift register is made up of transistors having a single conductivity, a bootstrap circuit is required, and a voltage over a power supply is applied to a specific element. Therefore, not both the driving amplitude and the reliability can be achieved with a single power supply. According to the invention, a level shifter having a single conductivity is provided to solve such a problem.06-25-2009
20080266234Shift register and liquid crystal display using same - An exemplary shift register includes plural shift register units (S10-30-2008
20100007598SHIFT REGISTER - A shift register includes multiple stages each generating a scan signal at an output terminal and including a level pull-up circuit, a level pull-down circuit, a driving circuit and a level controlling circuit. The level pull-up circuit makes the scan signal equal a first clock signal in response to an enabled level of a first control signal. The level pull-down circuit makes the scan signal equal a first voltage in response to an enabled level of a second control signal. The driving circuit controls the first control signal to be the enabled level and a disabled level in response to an enabled level of an input signal and the enabled level of the second control signal, respectively. The level controlling circuit controls the second control signal to be the disabled level and the enabled level in response to the enabled level and the disabled level of the input signal, respectively.01-14-2010
20100283715Shift Register for an Active-Matrix Flat Screen - In a shift register driven by two complementary clock signals for controlling the selection of the rows R(n) of image points of a flat screen, a control transistor T11-11-2010
20090273557Liquid crystal display and method of driving the same - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a data drive circuit that supplies a data voltage, whose a polarity is periodically inverted, to the data lines, a gate drive circuit, and a timing controller. The gate drive circuit sequentially supplies a first gate pulse synchronized with a first data voltage to gate lines, and sequentially supplies a second gate pulse synchronized with a second data voltage having a polarity opposite a polarity of the first data voltage, to the gate lines. The timing controller generates a pre-gate start pulse for controlling an output of the first gate pulse during a blank period, and then generates a real gate start pulse for controlling an output of the second gate pulse during an initial period of a frame period following the blank period.11-05-2009
20100085294SHIFT REGISTER, DISPLAY AND METHOD FOR DRIVING SHIFT REGISTER - A shift register comprises: a first output circuit controlled by a first clock signal to output a signal to a first output signal line; a second output circuit controlled by a second clock signal with a phase different from a phase of the first clock signal to output a signal to a second output signal line; a first control signal line connected to the first and second output circuits; and a second control signal line connected to the first and second output circuits.04-08-2010
20110169723Level Shift Circuit, Liquid Crystal Display Device and Charge Sharing Method - A level shift circuit includes a control logic circuit, a plurality of level shift output buffers and a plurality of charge sharing circuits. The control logic circuit receives input clock pulse signals and a charge sharing signal and acquires voltage level information of each received signal. Each output buffer amplifies a corresponding input clock pulse signal and determines whether to output a signal according to the acquired information of the charge sharing signal. Each charge sharing circuit determines whether to be turned on according to the acquired information of a corresponding input clock pulse signal. When a charge sharing circuit is turned on, the output terminal of a corresponding output buffer and a predetermined voltage level are coupled to each other by the charge sharing circuit, so as to perform the charge sharing operation. Furthermore, a corresponding liquid crystal display device and a corresponding charge sharing method are also provided.07-14-2011
20090278783LIQUID CRYSTAL DISPLAY WITH SLIM BORDERS AND DRIVING METHOD THEREOF - A display device includes a substrate, a display area, an ASIC disposed by a first edge of the display area for generating a number of P data voltage signals, a first shift register having a plurality of first shift register units disposed by a second edge of the display area, a second shift register having a plurality of second shift register units disposed by a third edge of the display area, a plurality of first switch unit and a plurality of second units. The first switch units sequentially outputs the first through the11-12-2009
20090278785DISPLAYS - A display includes a glass substrate, a source driver and a gate driver. The glass substrate includes multiple pixels. The source driver is used to drives the pixels, and the gate driver disposed on the glass substrate enables the pixels. The gate driver has (N+1) shift registers. The n11-12-2009
20090289888DISPLAY DEVICE CAPABLE OF REDUCING VOLTAGES IN EXTERNAL INTEGRATED CIRCUIT - Provided is a waveform processing circuit including: an amplitude expansion circuit configured to expand amplitude of an analog video signal; a voltage shifting circuit configured to shift a voltage of the analog video signal; and an impedance conversion circuit having an output impedance lower than that of the voltage shifting circuit.11-26-2009
20090262061Liquid Crystal Panel and Display Apparatus Including Liquid Crystal Panel - A liquid crystal panel includes a plurality of pixel units, each of which include gating lines, data lines, a pixel electrode and a thin film transistor (TFT). Common electrodes of first pixel units in a same row are electrically connected via a first common line, and common electrodes of second pixel units in the same row are electrically connected via a second common line. The first common line is connected with a first common voltage and the second common voltage is connected with a second common voltage. The first common voltage and the second common voltage are alternating current voltages and have opposite polarities in the same frame. The liquid crystal panel can decrease power consumption of a source driver and lower cost of the liquid crystal panel.10-22-2009
20090167668Shift Register - A shift register includes a plurality of scan stages to output scan pulses to a plurality of gate lines, a first dummy stage to output a first dummy scan pulse to a first of the plurality of scan stages, and a second dummy stage to output a second dummy scan pulse to a last of the plurality of scan stages.07-02-2009
20120293401SHIFT REGISTER UNIT CIRCUIT, SHIFT REGISTER, ARRAY SUBSTRATE AND LIQUID CRYSTAL DISPLAY - Embodiments of the disclosed technical solution provides a shift register unit circuit which operates based on two clock signals and comprises input terminals, a pre-charging circuit, a first level pulling-down circuit, a second level pulling-down circuit and a scan signal output terminal. Embodiments of the disclosed technical solution also provides a shift register having at least two shift register unit circuits connected in cascade, and further provides a liquid crystal display array substrate and a liquid crystal display. Embodiments of the disclosed technical solution settles problems that a threshold voltage of the pulling-down TFT would drift under a direct current bias voltage and a output is unstable due to a clock hopping, increases a reliability of the circuit and reduces power consumption.11-22-2012
20080303776FLAT PANEL DISPLAY DEVICE - A flat panel display device is capable of reducing a resistance difference according to the lengths of signal lines and has a stably designed resistance value of the signal lines arranged in edges of wire groups diverging from a driving circuit unit. The flat panel display device includes a display unit including a plurality of pixels arranged in intersecting regions of signal lines; a driving circuit unit to supply drive signals to the signal lines; and a divergence region having the signal lines diverge into at least two wire groups to connect the driving circuit unit to the pixels, wherein a resistance difference per unit length between the signal lines arranged in a boundary of two wire groups is set to a value that is intermediate of average resistance differences between the adjacent signal lines in the two wire groups.12-11-2008
20080224985SHIFT REGISTER - A shift register is disclosed, which can prevent malfunctioning of device by decreasing the load on a discharging voltage source line, and can decrease a size of stage. The shift register comprises a plurality of stages to sequentially output scan pulses through respective output terminals, wherein each of the stages comprises a pull-up switching unit controlled based on a signal state of node, and connected between the output terminal and any one among a plurality of clock transmission lines to transmit the clock pulses provided with sequential phase differences; and a node controller to control the signal state of node, and to discharge the node by using the clock pulse from any one among the plurality of clock transmission line.09-18-2008
20080273004Shift Register and Semiconductor Display Device - The invention provides a shift register which can operate normally while suppressing a delay of signal and a rounding of waveform. The shift register of the invention includes a plurality of stages of flip-flop circuits each of which includes a clocked inverter. The clocked inverter includes a first transistor and a second transistor which are connected in series, a first compensation circuit including a third transistor and a fourth transistor which are connected in series, and a second compensation circuit including a fifth transistor and a transmission gate. According to the first compensation circuit, a timing at which a signal outputted from the flip-flop circuit rises or falls can be controlled in synchronization with an output of two stages before. The second compensation circuit can control a clock signal input can be controlled.11-06-2008
20100141570DISPLAY PANEL AND DISPLAY DEVICE - In one embodiment of the present invention, a display panel includes an active matrix type pixel region including scanning signal lines each of which is connected to three terminal elements each of which serves as an active element, the active matrix type pixel region including a non-rectangular shape by being configured such that the respective scanning signal lines are connected with various numbers of the three terminal elements according to where the scanning signal lines are located, and a shift register which drives the scanning signal lines, the shift register being formed in a region on a panel substrate, the region being adjacent to the pixel region in a direction in which the scanning signal lines extend.06-10-2010
20090160752Pixel array with reduced sensitivity to defects - An array of active pixels comprises rows of pixels and row select lines for selecting rows of pixels. Each active pixel comprises a buffer amplifier for buffering an output of a photo-sensitive element. An output of the buffer amplifier can be selectively put into a high impedance state, by control of the input of the buffer amplifier, when there is a defect in the row select line for that pixel. This allows other rows, which are defect-free, to remain operating as normal. A disable line can be provided for a row of pixels and each pixel can have a switch connected to the disable line. Alternatively, a first supply line powers a row of pixels. Each pixel comprises a reset switch connected between a photo-sensitive element and the first supply line for resetting the photo-sensitive element. The array is configured such that, in the event of a defect in a row select line, the first supply line is set to ground, or a low voltage, and the reset switch is turned on to put the buffer amplifier into the high impedance state.06-25-2009
20090073105Shift register and liquid crystal display using same - An exemplary shift register includes a plurality of shift register units, each of which includes an output circuit, an input circuit, and a logic circuit. The output circuit includes a clock transistor, a voltage stabilizing transistor, and an input circuit for receiving signals output by a previous shift register unit. The logic circuit receives signals output by the input circuit. When the input circuit outputs signals to switch on the clock transistor, the logic circuit outputs a low level voltage signal to shut off the voltage stabilizing transistor. Thus, the output circuit outputs signals via the clock circuit. On the other hand, when the input circuit outputs signals to shut off the clock transistor, the logic circuit outputs a high level voltage signal to turn on the voltage stabilizing transistor, so as to maintain the output circuit to output low level voltage signal.03-19-2009
20090184914DRIVING DEVICE FOR GATE DRIVER IN FLAT PANEL DISPLAY - A driving device of a gate driver in a flat panel display for reducing production cost includes a plurality of addressing units, each addressing unit for generating a plurality of addressing signals, and an output control circuit for performing logic operations in order on a plurality of addressing signals generated by one of the plurality of addressing units and a plurality of addressing signals generated by another of the plurality of addressing units, for generating a plurality of channel output signals.07-23-2009
20090207120METHOD FOR FAST SWITCHING INTERFACES IN LIQUID CRYSTAL DISPLAY OF PORTABLE ELECTRONIC DEVICE - A method fast switches interfaces in liquid crystal display (LCD) of portable electronic device. The registers in LCD driver apparatus are divided into first registers, which need not refreshing during interface switching, and second registers, which need refreshing during interface switching. After power on, the initial setting for LCD is carried on and power on image is display. When the interface is switched, for example from CPU interface to RGB interface, only the second registers are refreshed and the refreshing of the first registers is bypassed. The first registers are initial setting registers including power-related registers. Therefore, the refreshing of the first registers can be advantageously bypassed to save power consumption and speed up interface switch operation.08-20-2009
20090146940Liquid crystal display device - A display having a data driving integrated circuit includes N number of output channels (where N is an integer) having at least two regions including a first output channel and an Nth output channel, a data output channel group including M data output channels (where M is an integer less than N), the M data output channels supplying pixel data to a corresponding number of the data lines in accordance with a desired resolution of the display, wherein (N−M) output channels are not supplied with pixel data, and the (N−M) output channels are located between the first output channel and the Nth output channel, and a channel selector selecting the M data output channels.06-11-2009
20090140969LIQUID CRYSTAL DISPLAY DRIVE CIRCUIT - This invention offers an LCD drive circuit that prevents conversion to a wrong duty driving state and an unintended display caused by taking in of serial data corresponding to the wrong duty driving state. The LCD drive circuit is provided with an LCD drive signal generation circuit that generates driving signals to turn LCD segments on and off based on serial data received by a serial data receiving circuit and is switchable between a ¼ duty driving state and a ⅓ duty driving state. The LCD drive circuit is also provided with a driving state setting circuit that sets the LCD drive signal generation circuit to the ¼ duty driving state based on identification data when the serial data receiving circuit receives the serial data corresponding to the ¼ duty driving state and thereafter forbids the LCD drive signal generation circuit to take in serial data corresponding to the ⅓ duty driving state when the serial data receiving circuit receives the serial data corresponding to the ⅓ duty driving state.06-04-2009
20090256794SHIFT REGISTER - A shift register includes a plurality of stages for sequentially outputting scan pulses to drive a plurality of gate lines, wherein each of the stages includes a set node, a pull-up switching device for outputting a corresponding scan pulse according to a logic state of the set node, at least two reset nodes, at least two pull-down switching devices, each of the pull-down switching devices being connected to a corresponding reset node to output an off voltage according to a voltage level of the corresponding reset node, and a node controller for controlling logic states of the nodes of a corresponding stage and logic states of the nodes of stages different from the corresponding stage together, wherein the node controllers of the stages control an output order of the scan pulses from the stages according to a forward voltage and reverse voltage having opposite phases.10-15-2009
20100039363GATE DRIVING CIRCUIT AND DISPLAY DEVICE HAVING THE SAME - A gate driving circuit that may be capable of improving driving margin and maintaining reliability even after long use, and a display device having the gate driving circuit. The gate driving circuit includes a shift register having a plurality of stages dependently connected to one another, wherein each stage includes a pull-up unit outputting a first clock signal as a gate signal in response to a signal of a first node, to which a first input signal is applied, a pull-down unit discharging the gate signal to a gate-off voltage in response to a second input signal, a discharging unit discharging the signal of the first node to the gate-off voltage in response to the second input signal, and a holding unit maintaining the signal of the first node at the gate-off voltage in response to a delay signal of the first clock signal.02-18-2010
20090115716Shift register, circuit driving display device, and display device - In one embodiment of the present invention, the present shift register is a shift register provided in a display device by which a partial-screen display is available. The shift register includes a shift stopping circuit that is provided in an in-between stage, and stops operation of the shift register between a first stage and a last stage of the shift register in partial-screen display. The shift register also includes a circuit that is provided in a stage other than the in-between stage in such a manner that the circuit does not perform signal processing but serves as a signal path. The circuit is same as the shift stopping circuit in configuration. The foregoing allows improvement in display quality of the display device employing the present shift register.05-07-2009
20090079687Load sensing forced mode lock - A method for restoring visual output to a display device. The method includes detecting a display device connection change on an output connector and changing output settings to a compatible output mode on the output connector. The method further includes cloning graphics output to the output connector. The graphics output is modified for display on the second output connector. Subsequently, a control panel application is executed to present an on-display control for changing the output mode of the first output connector.03-26-2009
20090079686Output restoration with input selection - A method for restoring visual output to a display device. The method includes detecting a display device connection change on an output connector and changing output settings to a compatible output mode on the output connector. The method further includes cloning graphics output to the output connector. The graphics output is modified for display on the output connector. The display device is signaled to change the input source to correspond to the output connector. Subsequently, a control panel application is executed to present an on-display control for changing the output mode of the first output connector.03-26-2009
20090213061Display device - A display device is provided comprising a plurality of pixels disposed in a matrix form in a display area of a substrate, each of the plurality of pixels having a memory which stores written data, a scan line which is provided common to pixels arranged along a row direction and through which a scan signal is supplied to the pixels, and an image line which is provided common to pixels arranged along a column direction and through which an image signal is supplied to the pixels, wherein the scan signal is supplied to the scan line through a vertical address circuit or a vertical shift register circuit, and data is supplied to the image line through a horizontal scan shift register circuit.08-27-2009
20090109162AMORPHOUS-SILICON THIN FILM TRANSISTOR AND SHIFT RESISTER HAVING THE SAME - An amorphous-silicon thin film transistor and a shift resister shift resister having the amorphous-silicon TFT include a first conductive region, a second conductive region and a third conductive region. The first conductive region is formed on a first plane spaced apart from a substrate by a first distance. The second conductive region is formed on a second plane spaced apart from the substrate by a second distance. The second conductive region includes a body conductive region and two hand conductive regions elongated from both ends of the body conductive region to form an U-shape. The third conductive region is formed on the second plane. The third conductive region includes an elongated portion. The elongated portion is disposed between the two hand conductive regions of the second conductive region. The amorphous-silicon TFT and the shift resister having the amorphous TFT reduce a parasitic capacitance between the gate electrode and drain electrode.04-30-2009
20110122056REFERENCE VOLTAGE GENERATORS FOR USE IN DISPLAY APPLICATIONS - A multi-reference voltage generator includes an interface controller, a first bank of N m-bit registers and a second bank of N m-bit registers. A first multiplexer has inputs connected to outputs of the first and second bank of registers. An m-bit digital-to-analog (DAC) has an m-bit parallel input connected to an output of the first multiplexer. An analog demultiplexer has an input connected to an analog output of the m-bit DAC. Each voltage storage device in a first group of N voltage storage devices is connected to a corresponding output of the analog demultiplexer. Similarly, each voltage storage device in a second group of N voltage storage devices is connected to a corresponding output of the analog demultiplexer. N further multiplexers each have a first input connected to an output of a corresponding one of the voltage storage devices in the first group and a second input connected to an output of a corresponding one of the voltage storage devices in the second group. N output buffers, each have an input connected to an output of a corresponding one of the N further multiplexers, and an output useful for driving a column driver.05-26-2011
20100164854Gate Drive Circuit, Display Device Having the Same and Method of Manufacturing the Gate Drive Circuit - A gate drive circuit includes a shift register having stages connected to each other in series. An (m)-th stage (‘m’ is a natural number) includes an output part, a discharging part, a first holding part and a second holding part. The output part outputs the first clock signal as a gate signal in response to a first clock signal provided from an external device and discharges the gate signal in response to a second input signal. The output part includes a first transistor having a first channel length. The discharging part discharges a signal of the first node to the second voltage level. The first holding part maintains a signal of the first node at a level of the gate signal, and is discharged to the second voltage level. The first holding part includes a second transistor having a second channel length that is longer than the first channel length. The second holding part maintains a signal of the first node at a level of the second voltage level.07-01-2010
20090219242LIQUID CRYSTAL DISPLAY DEVICE, LIQUID CRYSTAL PANEL CONTROLLER, AND TIMING CONTROLLER - In a LCD device, deterioration in display quality due to the difference of the line resistances of scan-line control signal lines is prevented by a simple structure. A gate driver outputs, from respective output terminals connected to scan-line control signal lines of a liquid crystal panel, a panel control pulse for turning on a TFT. A timing control circuit outputs to the gate driver an output enable signal for controlling an output timing of the panel control pulse. The output enable signal includes an enable control pulse for enabling the panel control pulse to be output. The timing control circuit is capable of adjusting the pulse width of the enable control pulse in accordance with the output terminals of the gate driver.09-03-2009
20100182227GATE DRIVING CIRCUIT CAPABLE OF SUPPRESSING THRESHOLD VOLTAGE DRIFT - A gate driving circuit capable of suppressing threshold voltage drift is disclosed for providing gate signals forwarded to gate lines. The gate driving circuit includes a plurality of shift register stages. Each shift register stage includes a pull-up unit, an energy-store unit, a buffer unit, a discharging unit, a pull-down unit, a control unit and a signal switching unit. The pull-up unit pulls up a gate signal according to a driving control voltage and a first clock. The energy-store unit provides the driving control voltage through performing a charging process based on an input signal received by the buffer unit. The pull-down unit pulls down the gate signal according to a control signal. The control unit generates the control signal based on the input signal and a second clock having a phase opposite to the first clock. The signal switching unit switches the control signal according to the first clock.07-22-2010
20100039364DRIVE VOLTAGE GENERATING CIRCUIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A drive voltage generating circuit which has a first shifter receiving an input voltage and outputting a first drive voltage obtained by first shifting a voltage level of the input voltage; a second shifter receiving outputting the second drive voltage obtained by second shifting a voltage level of the first drive voltage; and a drive voltage controller adjusting one of a shifting amount of the first shifter and a shifting amount of the second shifter in accordance with a surrounding temperature, wherein the second drive voltage is continuously varied in an analog manner, in accordance with the surrounding temperature.02-18-2010
20100060561Shift Register Circuit - Each stage of a shift register circuit has an input section (03-11-2010
20090027326DISPLAY ELEMENT, METHOD OF DRIVING THE SAME, AND ELECTRONIC PAPER INCLUDING THE SAME - The present invention provides a display element capable of allowing a user to recognize the content of an image in a short time during screen rewriting, a method of driving the same, and an electronic paper including the same. At the time of image display, B and R pixels 01-29-2009
20090109161Signal Output Circuit, Shift Register, Output Signal Generating Method, Display Device Driving Circuit, and Display Device - A signal output circuit of one embodiment of the present invention is provided in a unit stage of a shift register. The signal output circuit includes a set-reset flip-flop, and a signal generation circuit for generating an output signal by loading or blocking a clock signal in accordance with a signal inputted thereto. The signal output circuit is arranged such that: the signal generation circuit receives a signal outputted from the flip-flop and the output signal fed back to the signal generating circuit; and the output signal is fed back to a reset input of the flip-flop. This makes it possible to achieve a reduction in the area of the circuit and a simplification of the circuit.04-30-2009
20080252587DRIVING METHOD - A driving method for driving a display panel is provided. The display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units electrically connected to the scan lines and the data lines. The driving method comprises enabling the pixel units controlled by the scan lines through different scanning sequences and inputs image data to the pixel units via the data lines in several consecutive frame times, wherein capacitance coupling effects between the pixel units are varied depending on the scanning sequences. Accordingly, the line mura caused by the capacitance coupling effect is restrained.10-16-2008
20100026619SHIFT REGISTER, SEMICONDUCTOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE - The invention provides a semiconductor device and a shift register, in which low noise is caused in a non-selection period and a transistor is not always on. First to fourth transistors are provided. One of a source and a drain of the first transistor is connected to a first wire, the other of the source and the drain thereof is connected to a gate electrode of the second transistor, and a gate electrode thereof is connected to a fifth wire. One of a source and a drain of the second transistor is connected to a third wire and the other of the source and the drain thereof is connected to a sixth wire. One of a source and a drain of the third transistor is connected to a second wire, the other of the source and the drain thereof is connected to the gate electrode of the second transistor, and a gate electrode thereof is connected to a fourth wire. One of a source and a drain of the fourth transistor is connected to the second wire, the other of the source and the drain thereof is connected to the sixth wire, and a gate electrode thereof is connected to the fourth wire.02-04-2010
20090174646GATE DRIVER WITH ERROR BLOCKING MECHANISM, METHOD OF OPERATING THE SAME, AND DISPLAY DEVICE HAVING THE SAME - A liquid crystal display (LCD) includes a plurality of gate line drivers that are to be sequentially activated during a display frame in response to an input vertical synchronization start signal having a predefined waveform. However, during shift of display mode it is possible that the vertical synchronization start signal will be asserted more then once in a frame and cause a problem. The LCD includes an error detecting and blocking unit which detects when the vertical synchronization start signal is asserted more then once in a frame and blocks the second assertion from being passed forward during the one frame so as to erroneously reactivate the plurality of gate line drivers a second time during the same frame.07-09-2009
20100177028Source driver of LCD for black insertion technology - A source driver of an LCD includes a shift register, a set of data latches, and a detection circuit. The shift register includes a plurality of flip-flops for transmitting a start signal. The set of data latches transmits the display data signal according to output signals of the corresponding flip-flops. When the start signal is recognized as a black insertion signal, the detection circuit resets the shift register, and drives the set of data latches to output the black data signal, and transmits the black insertion signal to the next source driver.07-15-2010
20120044133SHIFT REGISTER AND DISPLAY DEVICE - Each stage (Xi) of a shift register includes a first output transistor (M02-23-2012
20120044132SHIFT REGISTER, SCANNING LINE DRIVE CIRCUIT, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - Disclosed herein is a shift register including shift register unit circuits of a plurality of stages. Each of the shift register unit circuits of the plurality of stages includes a first transistor having a source and a drain to one of which a first clock signal is input and a gate to which a second clock signal obtained by substantially inverting the first clock signal is input. When the second clock signal at one of an H level and an L level is input to the gate of the first transistor, the first clock signal at the other of the H level and the L level is input to one of the source and the drain of the first transistor.02-23-2012
20130222220ELECTRO-OPTICAL DEVICE, SHIFT REGISTER CIRCUIT, AND SEMICONDUCTOR DEVICE - An electro-optical device is configured to be capable of using a region of a gate line drive circuit efficiently and preventing rising speed of a gate line selection signal from decreasing (rising delay), and a shift register circuit is composed of a single conductivity type transistor which is suitable for the device. The gate line drive circuit including an odd driver to drive odd rows of a plurality of gate lines, and an even driver to drive even rows thereof. Each unit shift register in the odd and even drivers receives a selection signal in the second previous row and activates its own selection signal two horizontal periods later. A start pulse of the even driver is delayed in phase by one horizontal period with respect to a start pulse of the odd driver.08-29-2013
20120154262Pixel Circuit And Display Device - A display device which achieves low power consumption without causing an aperture ratio to be lowered is provided. A pixel circuit includes: an internal node which holds a voltage of the pixel data supplied to a display element part; a first switch circuit which transfers the voltage of the pixel data supplied from a data signal line to the internal node through at least a switch element; a second switch circuit which transfers a voltage supplied to a predetermined voltage supply line to the internal node without going through the switch element; and a control circuit which holds a predetermined voltage depending on the voltage of the pixel data held in the internal node, at one end of a first capacitance element and controls connection/disconnection of the second switch circuit.06-21-2012
20090102778Shift register, gate driving circuit with bi-directional transmission function, and LCD with double frame rate - A shift register applied on a double-frame-rate LCD is provided. The LCD includes an upper display area with c gate lines, a lower display area with d gate lines, and a gate driving circuit. The gate driving circuit includes a first shift register coupled to the corresponding x gate lines of the upper display area, a second shift register coupled to the corresponding y lines of the lower display area, and a third shift register coupled to the corresponding (c-x) gate lines of the upper display area and the corresponding (d-y) gate lines of the lower display area.04-23-2009
20100214206SHIFT REGISTER - At least one embodiment the present invention a plurality of unit circuits connected in multiple stages, to normal operation when the unit circuits are simultaneously turned on to output high-level output signals. When a shift register malfunctions, so that output signals provided by previous- and subsequent-stage unit circuits are simultaneously set to high level, malfunction restoration circuits and included in a unit circuit detect the malfunction in at least one embodiment. The malfunction restoration circuit provides a high voltage to a node, thereby forcibly pulling down an output signal. Also, the malfunction restoration circuit forcibly discharges another node, so that a charge accumulated in a capacitance is released. As a result, the shift register in malfunction can be instantaneously restored to normal operation. At least one embodiment of the present invention is suitable for driver circuits or suchlike of display devices and imaging devices.08-26-2010
20090058790Shift register and liquid crystal display using same - The present invention relates to a shift register and a liquid crystal display using the same. The liquid crystal display includes a liquid crystal panel, a data driving circuit and a scanning driving circuit. The data driving circuit and the scanning driving circuit each include a shift register. The shift register includes a plurality of shift register units. Two adjacent shift register units respectively receive two inverse clock signals and a VGL signal. Each shift register unit includes a signal output circuit, a signal input circuit, a first logic converting circuit, and a second logic converting circuit. The present shift register and a liquid crystal display have simple structure.03-05-2009
20120169581SHIFT REGISTER AND DRIVING METHOD THEREOF - A shift register includes a signal input unit for receiving and providing an input signal, a signal output unit for controlling whether outputting a clock signal according to the input signal provided by the signal input unit, and a plurality of stable modules. Each of the stable modules is electrically coupled to an output terminal of the signal input unit, an output terminal of the signal output unit, and a default potential. Each of the stable modules receives a corresponding operation signal and is enabled in a duty of the corresponding operation signal, such that both the output terminal of the signal input unit and the output terminal of the signal output unit are electrically coupled to the default potential when the input signal is disabled. Before one of the stable modules is disabled, another of the stable modules has already been enabled.07-05-2012
20090085858DRIVING CIRCUIT AND RELATED DRIVING METHOD OF DISPLAY PANEL - A driving circuit applied to a display panel includes a driving unit for generating a plurality of driving signals to drive a plurality of pixels in the display panel, and a plurality of multiplexers coupled to the driving unit and the plurality of pixels. Each multiplexer of the plurality of multiplexers is utilized for sequentially transmitting a plurality of driving signals to a plurality of sub-pixels of a corresponding pixel, where two adjacent pixels utilize different driving sequences of the sub-pixels to drive their sub-pixels.04-02-2009
20080284711Method and apparatus to automatically control power of address data for plasma display panel, and plasma display panel device including the apparatus - A method and apparatus for automatically controlling power of address data in a plasma display panel (PDP), and a PDP device including the apparatus are provided. In this method, first, a difference-sum of pixel value differences between adjacent pixels successively arranged along a column of block is calculated. Then, an address power control level corresponding to the calculated difference-sum for each block is determined. Thereafter, gain information for each block on the basis of the address power control level for each block is determined. Next, a gain for each block corresponding to the gain information for each block is output. Then, the input image signal is multiplied by the gain for each block to correct the input image signal to output the corrected image signal. Accordingly, power consumption, noise, and generation of heat are reduced, and also the brightness is improved.11-20-2008
20120287029Display Device - A display device comprises a driver circuit having a shift register circuit having a level conversion function is provided with a simple circuit configuration of first, second, and third basic circuits connected in tandem at multistages. A common clear signal is supplied to a control electrode of a third transistor of each basic circuit, a first clock is supplied to a control electrode of a first transistor of each of the first and third basic circuits, a second clock different in phase from the first clock is supplied to a control electrode of a first transistor of the second basic circuit, outputs of the first and second basic circuit are respectively supplied to control electrodes of second transistors of the second and third basic circuits, and an inversion output of the third basic circuit is supplied to a control electrode of a fourth transistor of the first basic circuit.11-15-2012
20110156997ARRAY SUBSTRATE AND SHIFT REGISTER - An array substrate and a shift register directly fabricated thereon are provided. The shift register comprises a plurality of shift register units each connected to respective one of gate lines of the array substrate. The plurality of shift register units are divided into three groups. As to any two adjacent shift register units of each group, a signal output terminal of the following shift register unit is connected to a reset signal input terminal of the preceding shift register unit, and a signal output terminal of the preceding shift register unit is connected to a start voltage timing signal input terminal of the following shift register unit. Each group of shift register units are controlled by two clock signals, and the two clock signals alternately control two adjacent shift register units of each group. Both the first shift register unit and the third shift register unit are connected to a first start voltage timing signal input terminal, and the second shift register unit is connected to a second start voltage timing signal input terminal.06-30-2011
20080252588Column Electrode Driving Circuit and Display Device Using It - An object of the invention is to mitigate effect of variations of electrical characteristics or other performances of amplifiers used in a driving circuit system and combat the so-called artifact such as stripe patterns in displayed images even in a case of the same gray-scale of display. A column electrode driving circuit 10-16-2008
20100026620LCOS SPATIAL LIGHT MODULATOR - The display area selection circuit selects a desired display area. The signal generating circuit sets a period of each shift signal generated while the selection position of the pixel diode is between the shift start position and the display start position shorter than a period of each shift signal generated while the selection position of the pixel diode is between the display start position and the display end position.02-04-2010
20080224984METHOD FOR DRIVING A DISPLAY PANEL - A method for driving a display panel is provided. The display panel includes a first scan line, and the first scan line includes sub-pixels. A first portion of the sub-pixels is controlled by a first gate line, and a second portion of the sub-pixels is controlled by a second gate line. The arrangement of the sub-pixels of the first portion and the second portion are in an interlaced arrangement. The method includes the following steps. First, drive the first gate line and then drive the second gate line in a first image duration. Then, drive the second gate line and then drive the first gate line in a second image duration.09-18-2008
20100231497DISPLAY DEVICE PROVIDING BI-DIRECTIONAL VOLTAGE STABILIZATION - An LCD device includes a plurality of gate lines and a plurality of shift register units for driving corresponding gate lines. Each shift register unit includes a first circuit and a second circuit. The first circuit, disposed on a first side of a corresponding gate line, includes a pulse generator and a first transistor having a first W/L ratio. The pulse generator provides a driving signal according to the voltage obtained at a node, while the first transistor maintains the voltage level of the node. The second circuit, disposed on a second side of the corresponding gate line, includes a second transistor having a second W/L ratio. The second transistor maintains the voltage level of the driving signal from the second side of the corresponding gate line. The first W/L ratio is smaller than the second W/L ratio, and the first circuit occupies larger space than the second circuit.09-16-2010
20130100007SHIFT REGISTER AND DISPLAY DEVICE HAVING THE SAME - A shift register 04-25-2013
20130127698DISPLAY PANEL - A display panel includes a first substrate, scan lines, data lines, pixel units, a second substrate, a display medium, and a color filter layer. The scan lines and the data lines are disposed on the first substrate. The pixel units are electrically connected to the scan lines and the data lines. Each pixel unit includes first, second, third, and fourth pixels. An extension direction of slit patterns of the first and second pixels is different from an extension direction of at least one of slit patterns of the third and fourth pixels. The color filter layer includes a first color filter pattern disposed corresponding to the first pixel, a second color filter pattern disposed corresponding to the second pixel, and a third color filter pattern disposed corresponding to the third pixel and the fourth pixel.05-23-2013
20100309108LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a drive circuit; and a plurality of divided display sections which are arranged parallel to each other in a predetermined direction. Each divided display section includes: a plurality of scanning lines which are arranged parallel to each other in the predetermined direction; a plurality of data signal lines, and a plurality of pixel circuits which are provided correspondingly to intersections of the scanning lines and the data signal lines . The drive circuit supplies a signal potential to the data signal line based on a data signal before selecting the scanning line which is included in one or more of the divided display sections, is arranged adjacent to the scanning line included in another divided display section, and is firstly selected and within a blanking period.12-09-2010
20130241814DISPLAY DEVICE, DISPLAY METHOD, AND ELECTRONIC DEVICE - Disclosed herein is a display device including: a display section configured to have a plurality of scanning signal lines to which respective scanning signals are applied, the display section performing line-sequential scanning by repeating interruption and resumption of the line-sequential scanning on a basis of the plurality of scanning signals, and displaying an image; and a scanning section configured to generate the plurality of scanning signals such that transition times on a pulse termination side of the respective scanning signals are equal to each other.09-19-2013
20130187843DISPLAY DEVICE AND METHOD OF DRIVING SAME - Provided is a display device capable of correctly displaying an image when surplus outputs are produced within a driver, regardless of a shifting direction of a shift register within the driver, without bringing about increase in cost and increase in consumption current. A timing controller (07-25-2013
20120086627Display Device with Bi-directional Shift Registers - A display device having bi-directional shift registers is disclosed. The display device includes a display panel which has N gate lines, a first set of dummy registers, a second set of dummy registers, a plurality of valid shift registers coupled between the two sets of dummy registers, and a first start pulse signal generator coupled to the first valid register for generating the first start pulse signal to the first valid register to enable the first gate line. The first valid register is coupled to the first set of dummy registers. The Nth valid register is coupled to the second set of dummy registers.04-12-2012

Patent applications in class Particular row or column control (e.g., shift register)