Patent application number | Description | Published |
20090174975 | TWO-WAY ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT - An electrostatic discharge (ESD) protection circuit electrically connected to a first conductive line and a second conductive line is provided. The ESD protection circuit has a first ESD protection circuit unit, wherein the first ESD circuit unit includes a first coupled capacitor and a first active device. The first coupled capacitor includes a first electrode and a second electrode, wherein the first electrode is electrically connected to the first conductive line. The first active device includes a first gate, a first source and a first drain, wherein the first gate is electrically connected to the second electrode. In addition, the first source and the first electrode are electrically connected to the first conductive line, and the first drain is electrically connected to the second conductive line. Therefore, the conduction efficiency of the ESD protection circuit is improved. | 07-09-2009 |
20090236599 | ACTIVE DEVICE ARRAY SUBSTRATE - An active device array substrate at least including a substrate, a plurality of pixel units, a plurality of first signal lines, a first connecting wire, a plurality of first switching devices, and a plurality of second signal lines is provided. The pixel units are disposed within an active area. One ends of two neighbouring first signal lines are respectively connected to a first test line and a second test line. The other ends of the two neighbouring first signal lines are both connected to the first switching devices. Moreover, the first connecting wire is electrically connected to the first switching devices. One ends of two neighbouring second signal lines are respectively connected to a third test line and a fourth test line. | 09-24-2009 |
20100259699 | PIXEL STRUCTURE, THIN FILM TRANSISTOR ARRAY SUBSTRATE, DISPLAY PANEL, AND DISPLAY APPARATUS - A pixel structure adapts for compensating variation of gate-drain parasitic capacitance caused by misalignment in manufacturing process by forming a transverse compensation capacitance between a capacitance compensation portion and a scan line in an in-plane direction, and therefore the flicker in displaying of a display panel can be alleviated. In addition, being applied into a concept of “data lines reducing”, the pixel structure is capable of reducing difference of capacitance between two adjacent pixel structures due to misalignment in manufacturing process and improving display uniformity. Furthermore, a thin film transistor array substrate, a display panel, and a display apparatus applying the pixel structure are also provided. | 10-14-2010 |
20100328562 | LIQUID CRYSTAL DISPLAY PANEL - A liquid crystal display panel includes a plurality of scan lines and a plurality of pixels. Each scan line has a signal-input end, and each pixel includes a gate electrode, a drain electrode, an extending electrode and a coupling capacitor. The extending electrode is an extending part of the drain electrode, and does not overlap the gate electrode. Each coupling capacitor is coupled between each extending electrode and the corresponding scan line. In each scan line, capacitances of the coupling capacitors between the extending electrodes and the corresponding scan line increase as distances between the extending electrodes and the corresponding signal-input end increase. | 12-30-2010 |
20120112193 | TRANSISTOR ARRAY SUBSTRATE - A transistor array substrate includes a substrate, a plurality of scan lines, a plurality of data lines, and a plurality of pixel units. The scan lines, the data lines, and the pixel units are all disposed on the substrate. Each pixel unit includes a first transistor, a second transistor, a first pixel electrode, a second pixel electrode, a first storage capacitor, and a second storage capacitor. The second transistor and the first transistor are electrically connected with the same scan line and the same data line. The second transistor and the first transistor are connected in series. The first pixel electrode is electrically connected with the first transistor, and the second pixel electrode is electrically connected with the second transistor. The first storage capacitor is electrically connected with the first transistor and the second transistor, and the second storage capacitor is electrically connected with the second transistor. | 05-10-2012 |
20120169575 | LIQUID CRYSTAL DISPLAY PANEL FOR SOLVING COLOR SHIFT - A liquid crystal display panel for solving color shift includes a first pixel, a second pixel and a third pixel. The first pixel includes a first pixel electrode and a first storage electrode having a first common voltage. The first pixel electrode and the first storage electrode form a first storage capacitor. The second pixel includes a second pixel electrode and a second storage electrode having a second common voltage. The second pixel electrode and the second storage electrode form a second storage capacitor. The third pixel includes a third pixel electrode and a third storage electrode having a third common voltage. The third pixel electrode and the third storage electrode form a third storage capacitor. The first common voltage is not equal to at least one of the second common voltage and the third common voltage. | 07-05-2012 |
20120194490 | DISPLAY PANEL - A display panel have a transmissive region and a reflective region. The display panel comprises a first plate, a second plate opposite to the first plate and a display medium. The first plate comprises a first substrate, a scan line, a data line, an active device, a common electrode, a pixel electrode and a dielectric layer. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device and is electrically insulated from the common electrode. The pixel electrode has slits exposing the common electrode. The dielectric layer is located between the common electrode and the pixel electrode and has first openings in the reflective region. The second plate is opposite to the first plate. The display medium is located between the first plate and the second plate. | 08-02-2012 |
20120249938 | LIQUID CRYSTAL PANEL - A Liquid Crystal (LC) panel includes a substrate and a plurality of metal layers. The substrate has a reflective area, and the metal layers are formed on the substrate. A first reflective metal layer is formed on a surface of the metal layers within a reflective area, and is processed by a mask procedure to form a plurality of first reflective bumps. A second reflective metal layer is formed on the first reflective bumps, and is processed by a mask procedure to form a plurality of second reflective bumps located between the first reflective bumps. The second reflective bumps are higher than the first reflective bumps, so as to form a reflective metal layer having an uneven surface with vertical mismatch. | 10-04-2012 |
20130201086 | ACTIVE LIGHT EMITTING DEVICE - An active light emitting device disposed on a substrate is provided. The active light emitting device includes a scan line, a data line, a power line, a circuit unit, and a light emitting unit. The circuit unit is connected to the scan line, the data line, and the power line. The circuit unit at least includes an overlapping component which is at least partially overlapped with the power line. The light emitting unit is driven by the circuit unit. A light emitting region and a circuit region on the substrate are defined respectively by the light emitting unit and the circuit unit. | 08-08-2013 |
20130335394 | DRIVING CIRCUIT OF AN ORGANIC LIGHT EMITTING DEVICE AND METHOD OF OPERATING A DRIVING CIRCUIT OF AN ORGANIC LIGHT EMITTING DEVICE - A driving circuit of an organic light emitting device includes a switch module, a capacitor, and a driving unit. The switch module includes a first switch unit and a second switch unit. The first switch unit is coupled to a data line. The second switch unit is coupled to the organic light emitting device. During a programming period, the first switch unit is turned on and the second switch unit is turned off; and during an emission period, the first switch unit is turned off and the second switch unit is turned on. The capacitor is coupled to the first switch unit for being charged to a data voltage according to a data current of the data line during the programming period. The driving unit is used for generating a driving current to drive the organic light emitting device according to the data voltage during the emission period. | 12-19-2013 |
20140085284 | ORGANIC LIGHT EMITTING DIODE DISPLAY APPARATUS - An organic light emitting diode (OLED) display apparatus includes a power circuit and a pixel. The power circuit serves to provide a first voltage. The pixel includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a capacitor, and an OLED. During a programming period, a first terminal of the capacitor receives a data voltage through the turned-on first transistor, a first terminal of the second transistor receives the first voltage, a control terminal of the second transistor is coupled to a second terminal of the capacitor and coupled to a second terminal of the second transistor through the turned-on third transistor, and the power circuit regulates a voltage level or a current of the first voltage to accelerate a voltage level of the control terminal of the second transistor to reach a target voltage. | 03-27-2014 |
20140209868 | ORGANIC LIGHT EMITTING DIODE DISPLAY APPARATUS AND PIXEL CIRCUIT THEREOF - An organic light emitting diode display apparatus and a pixel circuit thereof are provided. The pixel circuit includes a switch unit, a capacitor, a first transistor, a second transistor, a third transistor and an organic light emitting diode. In a pre-charging period, a first terminal of the capacitor receives a data voltage through the switch unit, and a second terminal of the capacitor receives a high voltage through the turned-on first transistor. In a programming period, the first terminal of the capacitor receives the data voltage through the switch unit, and the second terminal of the capacitor receives the high voltage that is encoded through the turned-on second and third transistors. In a display period, the first terminal of the capacitor receives a ground voltage through the switch unit, and the first and third transistors are turned-off. | 07-31-2014 |
20140362068 | DRIVING CIRCUIT - A driving circuit includes a first transistor, a capacitor, a second transistor, and a charging circuit. The input terminal of the first transistor is electrically connected to a voltage source. The output terminal of the first transistor is electrically connected to an organic light-emitting diode. The first terminal of the capacitor is electrically connected to the control terminal of the first transistor. The input terminal of the second transistor is electrically connected to the second terminal of the capacitor. The control terminal of the second transistor is electrically connected to a scan line. The output terminal of the second transistor is electrically connected to the output terminal of the first transistor. The charging circuit is electrically connected to the first and second terminals of the capacitor, the scan line, and a current source. | 12-11-2014 |
20150049006 | PIXEL CIRCUIT OF ORGANIC LIGHT EMITTING DIODE - A pixel circuit of an organic light emitting diode (OLED) is provided. The pixel circuit includes an OLED, a first transistor, a second transistor and a capacitor. The OLED receives a first voltage. A terminal of the first transistor is coupled to the OLED, and another terminal of the first transistor receives a second voltage. A terminal of the second transistor is coupled to the terminal of the first transistor, another terminal of the second transistor is coupled to a control terminal of the first transistor, a control terminal of the second transistor receives a scan signal. The capacitor is coupled between the control terminal of the first transistor and a third voltage. When the scan signal is enabled, the second voltage is set to a data voltage, the third voltage is set to a reference voltage, and the first voltage is set to a low voltage. | 02-19-2015 |
20150049007 | PIXEL DRIVING CIRCUIT OF ORGANIC-LIGHT EMITTING DIODE - A pixel driving circuit of an organic light emitting diode includes a first transistor including a first terminal, a control terminal and a second terminal and a capacitor including a first terminal and a second terminal. The first terminal and the second terminal of the capacitor are electrically coupled to the first terminal and the control terminal of the first transistor at a first node and a second node respectively. In a first period, a power source does not provide a power supply voltage to the first node, and a data voltage and a variable voltage are written in the first node and the second node respectively. In a second period, the power source provides the power supply voltage to the first node. The first transistor provides a driving current to an organic light emitting diode based on the voltage of the first node and the second node. | 02-19-2015 |
20150109188 | ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE PIXEL STRUCTURE - An active matrix organic light emitting diode pixel (AMOLED) pixel structure includes a plurality of sub pixels, wherein at least one of the sub pixels comprises two secondary sub pixels, and the secondary sub pixels are disposed with organic light emitting materials with different light emitting characteristics respectively, so that lights emitted from the secondary sub pixels are mixed to adjust the performance of the sub pixels. | 04-23-2015 |
20150123081 | PIXEL ARRAY SUBSTRATE AND ORGANIC LIGHT-EMITTING DIODE DISPLAY - A pixel array substrate includes a first substrate, pixel units, data lines, scan lines, constant voltage lines, a constant voltage source, a constant voltage pad, and a conductive pattern. The first substrate has pixel regions and a peripheral region surrounding the pixel regions. The conductive pattern includes conductive lines interlaced with each other to form a net and a conductive frame that surrounds and is electrically coupled to the conductive lines. The conductive frame is in electrical contact with the constant voltage pad within the peripheral region. Each pixel region is defined by two adjacent scan lines and two adjacent data lines. A portion of one of the constant voltage lines located completely within each of the pixel regions is in electrical contact with one of the conductive lines within the pixel region. An OLED display including the pixel array substrate and another OLED are also provided. | 05-07-2015 |
20150364596 | THIN FILM TRANSISTOR - A thin film transistor disposed on a substrate is provided. The thin film transistor includes a channel, a gate, a source, a drain and an etching stop layer. The channel is disposed above the substrate and is located between the etching stop layer and the source. The gate is disposed on the substrate and overlapped with the channel. The source is disposed between the channel and the substrate and electrically connected to the channel. The channel is disposed between the drain and the substrate. The etching stop layer is disposed between the drain and the channel and has a first through hole exposing a portion of the channel. The drain is filled in the first through hole of the etching stop layer and is electrically connected to the channel. The drain covers the channel completely. | 12-17-2015 |
20160071462 | ORGANIC LIGHT EMITTING DIODE DISPLAY APPARATUS WITH POWER CIRCUIT TO ACCELERATE A VOLTAGE LEVEL - An organic light emitting diode (OLED) display apparatus includes a power circuit and a pixel. The power circuit serves to provide a first voltage. The pixel includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a capacitor, and an OLED. During a programming period, a first terminal of the capacitor receives a data voltage through the turned-on first transistor, a first terminal of the second transistor receives the first voltage, a control terminal of the second transistor is coupled to a second terminal of the capacitor and coupled to a second terminal of the second transistor through the turned-on third transistor, and the power circuit regulates a voltage level or a current of the first voltage to accelerate a voltage level of the control terminal of the second transistor to reach a target voltage. | 03-10-2016 |