ORISE TECHNOLOGY CO., LTD. Patent applications |
Patent application number | Title | Published |
20140354590 | IN-CELL MULTI-TOUCH PANEL SYSTEM WITH LOW NOISE AND TIME DIVISION MULTIPLEXING AND ITS DRIVING METHOD - An in-cell multi-touch panel system includes: an in-cell touch display panel, a touch display control system. In a first frame time interval, the touch display control system drives the in-cell touch display panel and samples the sensing voltage from the in-cell touch display panel to determine whether there is an approaching external object and noise interference. In a second frame time interval, the touch display control system finds out a frequency with minimum noise for use as a frequency of the touch driving signal when the noise interference exists. In a third frame time interval, the touch display control system is based on the frequency with minimum noise to correspondingly generate the touch driving signal so as to determine whether there is an approaching external object. | 12-04-2014 |
20140334728 | METHOD AND DEVICE OF SKIN TONE OPTIMIZATION IN A COLOR GAMUT MAPPING SYSTEM - In a method of skin tone optimization in a color gamut mapping system, an image signal is first transformed from a predetermined color domain to an HSV color domain for generating an HSV image signal. Next, a skin tone optimization is performed on the HSV image signal for generating an adjusted saturation gain. Then, a color enhancement is performed on the HSV image signal according to the adjusted saturation gain and a color shift signal so as to generate a color enhancement signal. Finally, the color enhancement signal is transformed from the HSV color domain to the predetermined color domain. | 11-13-2014 |
20140306906 | DRIVING METHOD FOR REDUCING DISPLAY INTERFERENCE IN IN-CELL MULTI-TOUCH PANEL AND SYSTEM USING THE SAME - In a driving method for reducing display interference in in-cell multi-touch panel, a display driving signal is provided to K gate lines and a display image signal is provided to L source lines so as to drive corresponding transistors and capacitors in a display frame for displaying an image. The method also provides a touch driving signal to N touch driving lines and receives touch signals from M sensing lines to thereby detect one or more touch point positions of an external object in a touch frame based on the touch driving signal. In each touch frame, a sequence of providing the touch driving signal to N touch driving lines is different. | 10-16-2014 |
20140204058 | SENSING METHOD USING SELF-CAPACITANCE AND MUTUAL-CAPACITANCE ALTERNATIVELY TO REDUCE TOUCH NOISES - In a sensing method using self-capacitance and mutual-capacitance alternatively to reduce touch noises, a control device configures a first driving and sensing device and a second driving and sensing device to perform an initialization. The control device configures the first and second driving and sensing devices to perform at least one self-capacitance sensing for producing a first possible touch point range during a first work mode. Then, the control device configures the first and second driving and sensing devices to perform at least one mutual-capacitance sensing for producing a second possible touch point range during a second work mode. The control device determines if there is range conjunction between the first and second possible touch point ranges. The control device produces a possible touch point range conjunction and calculates coordinates of touch points based on the possible touch point range conjunction. | 07-24-2014 |
20140167847 | Operational Amplifying Device with Auto-adjustment Output Impedance - An operational amplifying device with auto-adjustment output impedance includes an operational amplifier and first to third signal paths. The operational amplifier has an output connected to its inverting input, and a non-inverting input for receiving an input signal. The first signal path has one end connected to the output of the operational amplifier and the other end connected to a first output node. The second signal path has one end connected to the output of the operational amplifier and the other end connected to the first output node. The third signal path has one end connected to the output of the operational amplifier and the other end connected to the first output node. The first signal path is normally on, and the second and third signal paths are normally off. The first signal path has high impedance, and each of the second and third signal paths has low impedance. | 06-19-2014 |
20140132560 | In-cell multi-touch I display panel system - An in-cell multi-touch display panel system includes a multi-touch LCD display panel and a touch display control subsystem. The multi-touch LCD display panel has a TFT layer, a detection electrode layer, and a common-voltage and touch-driving layer. The detection electrode layer has M first conductor lines for performing touch detection by sampling touch detection from the M first conductor lines. The common-voltage and touch-driving layer has N second conductor lines for receiving common voltage in display and touch-driving signal in touch detection. In the detection electrode layer, there are pluralities of detection electrode areas in the intersections of first conductor lines and second conductor lines. Each detection electrode area is connected to a first conductor line by a touch-control transistor. The M×N touch-control transistors are divided in to N sets corresponding to N second conductor lines respectively. | 05-15-2014 |
20140132556 | Noise reduction method and system of capacitive multi-touch panel - A noise reduction system includes a driving device, a sensing device, a first switch, a second switch, and a controller. The driving device has a plurality of drivers for generating touch driving signals. The sensing device has a plurality of sensors for detecting whether there is an external object approached and generating touch sensing signals. The first switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The second switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The controller configures the first switch and the second switch to perform a first direction driving and second direction sensing, and configuring the first switch and the second switch to perform a second direction driving and first direction sensing. | 05-15-2014 |
20140118297 | Method for improving linearity of touch system coordinates - A method for improving linearity of touch system coordinates first reads two-dimensional raw data of a capacitive touch panel. Next, it reads a pixel and adjacent pixels of the pixel from the two-dimension raw data. Then, it determines whether the value of the pixel is great than a pre-determined threshold. If the value of the pixel is not greater than the pre-determined threshold, it then determines whether there is a value of the adjacent pixels is greater than the pre-determined threshold. If there is no value of the adjacent pixels greater than the pre-determined threshold, it sets the value of the pixel to a pre-determined value. Otherwise, it reserves the value of the pixel in order to increase the linearity of two-dimensional raw data so as to avoid the interference of noise to the two-dimensional raw data. | 05-01-2014 |
20140104261 | SOURCE DRIVING APPARATUS WITH POWER SAVING MECHANISM AND FLAT PANEL DISPLAY USING THE SAME - A source driving apparatus with power saving mechanism and a flat panel display using the same are provided. The source driving apparatus includes an output buffer stage and a power-saving circuit. The output buffer stage operates under a dual power, and has a positive and negative output channels respectively coupled to two adjacent data lines in a display panel. Moreover, the power-saving circuit is coupled between the output buffer stage and the display panel. The power-saving circuit collects charges from an equivalent load capacitor of each data line, before the output buffer stage drives the two adjacent data lines through the positive and negative output channels. The power-saving circuit charges one of a positive supply and a negative supply of the dual power in response to the collected charges, during the output buffer stage drives the two adjacent data lines through the positive and negative output channels. | 04-17-2014 |
20140098056 | MULTI-TOUCH SYSTEM AND METHOD FOR CONTROLLING LIQUID CRYSTAL CAPACITORS TO REDUCE TOUCH SENSING INTERFERENCE - A multi-touch system for controlling liquid crystal capacitors to reduce touch sensing interferences includes K gate driving lines, which are divided into N groups each corresponding to a common voltage conductive line. When a display driving signal is applied to an i-th group of gate driving lines for performing a display driving, the liquid crystal capacitor corresponding to the i-th group is set to a predetermined voltage, where i=1 to N. Finally, a touch driving signal is applied to an i-th common voltage conductive line corresponding to the i-th group for sensing touch points, so as to reduce touch sensing affections caused by noises of the liquid crystal display. | 04-10-2014 |
20130321365 | DISPLAY PANEL DRIVING AND SCANNING METHOD AND SYSTEM - A display panel driving and scanning system includes a timing controller to divide one frame period into first to third time periods. In the first time period, an image processing device calculates an overdriving signal for a current frame based on the current frame and a previous frame. In the second time period, the image processing device outputs the current frame, and a source driver charges the capacitors of the pixels in the liquid crystal display panel based on the current frame. In the third time period, the timing controller drives a backlight driving circuit to turn on a backlight source of the liquid crystal display panel for displaying the current frame. | 12-05-2013 |
20130321056 | BOOTSTRAP CIRCUIT - A bootstrap circuit includes an input terminal, an inverting input terminal, an output terminal, an inverting output terminal, a first sub-bootstrap circuit, a second sub-bootstrap circuit, and a charging path providing circuit. The first sub-bootstrap circuit includes a first bootstrap capacitor, a first charging path, a first discharging path, and a first high voltage providing path. The charging path providing circuit includes a third charging path. In response to a high voltage level inputted into the input terminal, the first charging path and the third charging path are turned on, the first bootstrap capacitor is charged to a capacitor voltage, and the first discharging path is turned on to discharge the output terminal. In response to a low voltage level inputted into the input terminal, a first superimposed voltage including the high voltage level and the capacitor voltage is provided to the output terminal. | 12-05-2013 |
20130285952 | IN-CELL MULTI-TOUCH DISPLAY PANEL SYSTEM - An in-cell multi-touch display panel system includes a touch LCD panel and a touch display control subsystem. The touch LCD panel has a TFT layer, a conductive electrode layer, and a common-voltage and touch-driving layer. The TFT layer has K gate driving lines and L source driving lines for a display operation. The conductive electrode layer has M first conduct lines for a touch detection operation by sampling a touch detection result from the M first conduct lines. The common-voltage and touch-driving layer has N second conduct lines for receiving a common voltage signal in display and receiving a touch-driving signal in touch detection. The K gate driving lines are divided into N groups respectively corresponding to the N second conduct line. When one group of gate driving lines has the display driving signal, the corresponding second conduct line is connected to the common voltage signal. | 10-31-2013 |
20130234985 | DRIVING FREQUENCY SELECTION METHOD FOR CAPACITIVE MULTI-TOUCH SYSTEM - A driving frequency selection method is used in a capacitive multi-touch system. When the system operates in an idle mode, an active driving frequency is selected randomly from N candidates, and a self-capacitance driving and sensing is used to detect touch points. When there are touch points, the capacitive multi-touch system is switched to an active mode to acquire an image raw data for finding the positions of touch points. In the active mode, noise is calculated from the image raw data. When the noise exceeds a predetermined value, the system is switched back to the idle mode, and the self-capacitance driving and sensing is applied to N−1 active driving frequencies other than the previously selected active driving frequency to acquire N−1 self-capacitance image raw data. The method determines one with a minimum noise and selects the corresponding frequency as a currently active driving frequency. | 09-12-2013 |
20130234981 | CONTROL SYSTEM AND METHOD FOR CAPACITIVE TOUCH SCREEN - A control system for a capacitive touch screen is provided. The control system comprises a touch detecting circuit, touch hard instruction, a storage module and a controller. The touch detecting circuit detects a capacitance variance to generate touch data. The touch hard instruction executes a touch computing function on the touch data. The storage module is connected to the touch detecting circuit and the at least one touch hard instruction, and records the touch data generated by the touch detecting circuit and the touch data computed by the touch hard instruction. The controller is connected to the touch detecting circuit, the at least one touch hard instruction, and the storage module, and assigns at least one touch task of a touch algorithm to the at least one touch hard instruction, so as to execute a corresponding touch computing function of the touch algorithm. | 09-12-2013 |
20130229382 | LOW POWER SWITCHING MODE DRIVING AND SENSING METHOD FOR CAPACITIVE MULTI-TOUCH SYSTEM - A low power switching mode driving and sensing method for capacitive multi-touch systems is used in a capacitive multi-touch system with a capacitive touch panel. When the capacitive touch system operates in an idle mode, the method uses a self-capacitance driving and sensing technology to detect touch points. When the touch points are detected on the capacitive touch panel, the capacitive touch system is switched to an active mode and uses a mutual-capacitance driving and sensing technology to detect touch points for accurately acquiring the positions related to the touch points detected. During a predetermined time interval in which there is no touch point detected, the method automatically performs a calibration to update a mutual-capacitance base image raw data and a self-capacitance base image raw data, so as to overcome the drifting of sensors of the capacitive touch system. | 09-05-2013 |
20130169617 | CONTROL DEVICE AND CONTROL METHOD FOR DISPLAY PANEL - A charge-sharing control method for a display panel includes the following steps. Firstly, a first switch set is turned on, so that a first voltage driving unit provides a first positive driving voltage to a first data line and a second voltage driving unit provides a first negative driving voltage to a second data line. Then, a second switch set is turned on, so that a first charge storage unit has a positive common voltage and a second charge storage unit has a negative common voltage. Then, a third switch set is turned on, so that the first data line and the second data line are electrically connected with a ground voltage. After a polarity inversion, the second data line is charged according to a first comparison result and the first data line is discharged according to a second comparison result. | 07-04-2013 |
20130148019 | PIXEL DATA CONVERSION APPARATUS AND METHOD FOR DISPLAY WITH DELTA PANEL ARRANGEMENT - A pixel data conversion method for display with delta panel arrangement converts an input video signal into a temporary video signal which is a first RGB signal with 640 horizontal resolution in a strip panel arrangement and converts the temporary video signal into an output video signal which is a RGB signal with 320 horizontal resolution in the delta panel arrangement. Each line of the output video signal has 960 pixels. A pixel size ratio is defined as a ratio of a pixel size of the delta panel to a pixel size of the strip panel. The 320 horizontal resolution is obtained by dividing the 640 horizontal resolution by the pixel size ratio and then by three. | 06-13-2013 |
20130093519 | POSITIVE AND NEGATIVE VOLTAGE INPUT OPERATIONAL AMPLIFIER SET - A positive and negative voltage input operational amplifier includes a positive operational amplifier and a negative operational amplifier. Each of the positive operational amplifier and the negative operational amplifier has a reduced layout area and a lowered static current, so that the power consumption is effectively reduced. | 04-18-2013 |
20130016141 | METHOD AND APPARATUS OF COMPENSATING IMAGE IN A BACKLIGHT LOCAL DIMMING SYSTEMAANM CHANG; Chih-KaiAACI Taichung CityAACO TWAAGP CHANG; Chih-Kai Taichung City TWAANM WU; Yu-LiAACI Hsinchu CityAACO TWAAGP WU; Yu-Li Hsinchu City TW - An apparatus compensates image in a backlight local dimming system for estimating pixels of the image after backlight spreading of a plurality of backlight sources in the backlight local dimming system. The apparatus includes a block dimming value decision unit, a quality/power-saving priority decision unit, a temporal filter, a backlight spread approximation unit, and an image compensation unit. The block dimming value decision unit calculates an average value, a maximum value and a initial value for each image block. The quality/power-saving priority decision unit generates a backlight control signal based on the average value, the initial value, and two thresholds. The temporal filter adaptively generates a backlight pulse width modulation signal based on the backlight control signal. The backlight spread approximation unit generates a backlight spread image based on the backlight pulse width modulation signal. The image compensation unit compensates the image based on the backlight spread image. | 01-17-2013 |
20130016036 | METHOD AND APPARATUS OF APPROXIMATING BACKLIGHT SPREAD IN A LOCAL DIMMING SYSTEMAANM CHANG; Chih-KaiAACI Taichung CityAACO TWAAGP CHANG; Chih-Kai Taichung City TWAANM Wu; Yu-LiAACI Hsinchu CityAACO TWAAGP Wu; Yu-Li Hsinchu City TW - An apparatus of approximating backlight spread is used in a display to estimate a backlight spread image corresponding to an image after backlight spreading of a plurality of backlight sources arranged in a matrix form. An equalizer receives backlight pulse width modulation signals of the backlight sources for performing an equalization operation and generating corresponding equalization signals. A backlight seed image constructor receives the equalization signals to establish a backlight seed image. A first calculation unit calculates positions corresponding to the backlight seed image based on a backlight spread image. A second calculation unit calculates coordinates of the backlight seed image corresponding to the positions. A distance calculator calculates distance differences between the positions and coordinates of the backlight seed image. A bilinear transformation unit performs a bilinear transformation on pixels of the backlight seed image and the distance differences so as to generate the backlight spread image. | 01-17-2013 |
20130009328 | ALIGNMENT MARK, SEMICONDUCTOR HAVING THE ALIGNMENT MARK, AND FABRICATING METHOD OF THE ALIGNMENT MARK - An alignment mark with a sheet or a layer of copper, which is compatible with a copper process, is provided herein. In one embodiment, a whole sheet of copper (Cu) is used as a background of the alignment mark, by which the color of the background of the alignment mark is stable and reliable. By such arrangement, the contrast between colors of a main pattern and the background of the alignment mark can be significantly improved, without considering a problem the homogeneity of manufacturing process. If the alignment mark is applied for manufacturing of a display, a recognition successful rate of alignment to attach an integrated circuit (IC) to a panel of the display is increased. | 01-10-2013 |
20120313684 | WIDE RANGE LEVEL SHIFT SYSTEM - A wide range level shift system receives an input signal with a first voltage level and a second voltage level. The wide range level shift system transforms the input signal to an output signal with a third voltage level and a fourth voltage level, wherein the first voltage level is smaller than the second voltage level, the second voltage level is smaller than the third voltage level, and the fourth voltage level is smaller than the first voltage level. The wide range level shift system has six transistors for reducing the number of transistors required, the layout area of the transistors, and the power consumption. | 12-13-2012 |
20120194469 | DEMODULATION METHOD AND SYSTEM FOR A LOW-POWER DIFFERENTIAL SENSING CAPACITIVE TOUCH PANEL - In a demodulation system for a low-power differential-sensing capacitive touch panel, the capacitive touch panel has n first conductor lines in a first direction and m second conductor lines in a second direction, and a mutual capacitance is generated at each intersection of the n first conductor lines and the m second conductor lines. The demodulation system has a signal generator, a detection circuit, a programmable gain amplifier, an analog to digital converter. During a driving cycle, the signal generator generates a pair of differential driving signals to drive two of the first conductor lines in the first direction for eliminating common noises of the two first conductor lines and avoiding the common noises from being amplified by the programmable gain amplifier. | 08-02-2012 |
20120106836 | Method and system for enhancing image sharpness based on local features of image - A system for enhancing image sharpness includes a minimum unit, a maximum unit, a subtraction unit, a local mean unit, a sharpness calculation unit and a sharpness processing unit. The minimum unit receives pixels in a local area of an image to output a minimum luma value. The maximum unit receives the pixels in the local area of the image to output a maximum luma value. The subtraction unit subtracts the minimum luma value from the maximum luma value to generate a difference value. The local mean unit calculates an average of the luma values in the local area to generate a local mean value. The sharpness calculation unit calculates a sharpness factor for a pixel based on the difference value and an adjustable coefficient. The sharpness processing unit performs a sharpness processing on the pixel according to the sharpness factor and the local mean value. | 05-03-2012 |
20120038686 | DRIVING CIRCUIT FOR DRIVING ELECTRONIC PAPER - A driving circuit for driving electronic paper is provided, which includes a plurality of driving units. Each driving unit couples to display units of a row of the electronic paper through a data terminal for driving a display unit from a previous gray level to a target gray level during a driving period. Each driving unit includes a data driver and a switch. The data driver respectively provides a black data DC voltage and a white data DC voltage to the data terminal during a black phase and a white phase of the driving period, and provides a first pulse and a second pulse to the data node during a program phase of the driving period. The switch conducts the data node to a middle voltage between the first pulse and the second pulse. | 02-16-2012 |
20110298519 | LEVEL SHIFTER - The present invention provides a level shifter. In an embodiment, the level shifter includes first to sixth transistors. The first and second transistors have common control nodes coupled to a first bias voltage, receive a pair of input signals and respectively provide a first output node and a second output node. The fifth and sixth transistors have common control nodes coupled to a second bias voltage to form a current mirror. The third transistor is coupled between the first and the fifth transistors and has a control node coupled to the second output node. The fourth transistor is couple between the second and the sixth transistors and has a control node coupled to the first output node. | 12-08-2011 |
20110157081 | SENSING CIRCUIT FOR USE WITH CAPACITIVE TOUCH PANEL - A sensing circuit of a capacitive touch panel includes a first switch, a second switch, a third switch, a feedback capacitor, a fourth switch and an operation amplifier. The first switch and the second switch have respective first ends connected with a receiving electrode. The third switch has a first end connected with a second end of the first switch. The feedback capacitor has a first end connected with the second end of the first switch. The fourth switch has a first end connected with a second end of the feedback capacitor. The operation amplifier has a positive input terminal connected with a ground terminal, a negative input terminal connected with the fourth switch, and an output terminal connected with the second, third and fourth switches. These switches are controlled during a driving cycle of the driving signal, so that an output voltage is outputted from the operation amplifier. | 06-30-2011 |
20110156930 | Capacitive Touch Panel with High Touching Sensitivity - A capacitive touch panel has a plurality of first conductor lines and a plurality of second conductor lines. The first conductor lines are disposed in a first direction for sensing a contact with an object. The second conductor lines are disposed in a second direction to be intersected insulatively with the first conductor lines so as to define an overlapping region at each intersection of a first conductor line and a second conductor line. As a driving signal is applied to one of the second conductor lines, the overlapping region defined at the intersection forms a capacitance. Each of the first conductor lines defines at least one opening in each of the overlapping regions. | 06-30-2011 |
20110102061 | Touch panel sensing circuit - A touch panel sensing circuit senses a voltage variation of a coupling capacitor formed between a first directional signal line and a second directional signal line separated from the first directional signal line by a dielectric when an object approaches. The sensing circuit eliminates the parasitic capacitance effect on the signal lines and rapidly accumulates charges for an amplifier in sensing to thereby increase the operational speed of the sensing circuit. | 05-05-2011 |
20110090173 | SENSING CIRCUIT FOR USE WITH CAPACITIVE TOUCH PANEL - A sensing circuit of a capacitive touch panel includes an operation amplifier, a first switch, a second switch, first and second feedback capacitors, a third switch, a fourth switch, a fifth switch and a sixth switch. The operation amplifier includes a positive input terminal, a negative input terminal and an output terminal. A reference voltage is inputted into the positive input terminal. The first switch is connected between a receiving electrode and the negative input terminal. The second switch is connected between the negative input terminal and the output terminal. The third switch is connected to the negative input terminal and the first feedback capacitor. The fourth switch is connected to the first feedback capacitor and the output terminal. The fifth switch is connected to the negative input terminal and the second feedback capacitor. The sixth switch is connected to the second feedback capacitor and the output terminal. | 04-21-2011 |
20100271895 | SRAM compatible embedded DRAM system with hidden refresh and dual port capabilities - An SRAM compatible embedded DRAM system with hidden refresh and dual port capabilities includes a memory cell array comprised of a plurality of single-port memory cells with dual-port capability, a first and a second port access units connected to the memory cell array in order to access the memory cells, and an access arbiter connected to the first and the second port access units in order to arbitrate a first port access request, a second port access request and a hidden refresh request. | 10-28-2010 |
20080224984 | METHOD 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 |
20080218155 | METHOD FOR STABLING VOLTAGE, PULSE FREQUENCY MODULATING CIRCUIT AND POWER SUPPLY USING THE SAME - A method for stabling a voltage, a pulse frequency modulating circuit and a power supply using the same are provided. The method includes the following steps. First, a comparing signal is provided. Then, set the comparing signal to be a first logic state when the voltage to be stabilized is lower than a preset voltage. Next provide a pulse signal when the comparing signal is set in the first logic state. Afterwards, adjust the enable time of the pulse signal based on the number of times of logic state changing of the comparing signal within a preset period and, adjust the voltage according to the enable time of the pulse signal. | 09-11-2008 |