Patent application number | Description | Published |
20130285892 | LIQUID CRYSTAL DISPLAY PANEL AND DRIVING METHOD THEREOF, AND LIQUID CRYSTAL DISPLAY DEVICE - A Liquid Crystal Display (LCD) panel includes a pixel array, a scanning line driver, a common electrode driver, and a data line driver. During a current frame, the scanning lines receive a scanning signal. The common electrode driver applies a common electrode signal to the common electrode line during a time window in which the scanning line corresponding to the common electrode line receives the scanning signal. The data line driver applies a data signal to the data lines during a time window in which the scanning line driver outputs the scanning signal. The data signals of adjacent pixel rows have opposite polarities, the common electrode signal during the current frame is opposite to the common electrode signal during a next frame, and the data signals of the pixel row in the current frame have opposite polarities of the data signals applied on the pixel row during the next frame. | 10-31-2013 |
20140054592 | TFT-LCD ARRAY SUBSTRATE - A pixel unit at a TFT-LCD array substrate includes a thin film transistor, a first storage capacitor, and a second storage capacitor. The first storage capacitor includes a transparent common electrode, a pixel electrode, and a first insulating layer disposed between the transparent common electrode and the pixel electrode. The second storage capacitor includes a first conductive layer, a second conductive layer, and a second insulating layer disposed between the first and second conductive layers. The first conductive layer is connected to the transparent common electrode within the pixel unit. The second conductive layer is connected to the pixel electrode within the pixel unit. | 02-27-2014 |
20140071361 | LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - A liquid crystal display device is disclosed. The device includes data lines, gate lines, and common lines in parallel with the gate lines. The device also includes at least one dummy gate line in parallel with the gate lines, gate line trigger circuits, and common line trigger circuits. One end of the last gate line is connected with the last gate line trigger circuit, one end of each of remaining gate lines is connected with a gate line trigger circuit corresponding to said each of remaining gate lines, and the other end of said each of the remaining gate lines is connected with a next gate line trigger circuit. The first common line trigger circuit is connected with one dummy gate line, and each of remaining common line trigger circuits is connected with one or more preceding gate line trigger circuits. | 03-13-2014 |
20140176404 | PIXEL CIRCUIT FOR ORGANIC LIGHT EMITTING DISPLAY AND DRIVING METHOD THEREOF, ORGANIC LIGHT EMITTING DISPLAY - A pixel circuit for an organic light emitting display includes first, second, third, fourth, fifth, and sixth MOS transistors, a first capacitor, and an organic light emitting diode. During a initialization stage, the sixth MOS transistor is turned on, and a reference voltage is transmitted to the gate electrode of the second MOS transistor. During a data-writing stage, the first MOS transistor is turned on and a data signal is transmitted to the first terminal of the first capacitor, the fourth MOS transistor is turned on and the other MOS transistors are turned off. During a light emitting stage, the fifth MOS transistor is turned on and the voltage at the gate of the second MOS transistor is based on the data signal. As a result, the third MOS transistor generates a drive current based on the data signal. | 06-26-2014 |
20140368416 | OLED DISPLAY DEVICE - An OLED display device includes multiple pixel units arranged in a matrix and a power supply driver chip located at one side of the multiple pixel units. The power supply driver chip is configured to supply input voltages to the multiple pixel units. The power supply driver chip provides the input voltages to the multiple pixel units through a plurality of input paths. The input paths are associated with input points, each of the input points corresponds to a pixel unit at a different location. The power supply driver chip compensates the input voltages to ensure that all of the pixel units at different locations may have an approximately equal input voltage, enabling the entire display region of the OLED display device to display with a uniform brightness and improving the display performance. | 12-18-2014 |
20150162387 | OLED DISPLAY APPARATUS WITH IN CELL TOUCH STRUCTURE - An OLED display apparatus with an in cell touch structure includes a cover plate, an array substrate facing the cover plate, an organic light-emitting layer arranged therebetween, multiple driving lines and multiple sensing lines arranged at an inner side of the cover plate facing the array substrate, multiple signal pins arranged at an inner side of the array substrate, where each of the signal pins corresponds to one of the driving lines or one of the sensing lines, and multiple conductive structures. The conductive structures are arranged between the driving lines and the signal pins or between the sensing lines and the signal pins. Each conductive structure includes an end electrically connecting a driving line or a sensing line to a corresponding signal pin, and an opposite end electrically connected to a corresponding touch signal transmission line. | 06-11-2015 |
20150187266 | ORGANIC LIGHT EMITTING DISPLAY AND PIXEL COMPENSATION CIRCUIT AND METHOD FOR ORGANIC LIGHT EMITTING DISPLAY - The present invention discloses a pixel compensation circuit and method for an organic light emitting display. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a driving transistor, a capacitor, and an organic light emitting element. The first transistor transmits a data signal to a first plate of the capacitor; the second transistor applies a reference voltage to the first plate of the capacitor; the driving transistor determines a magnitude of a driving current; the third transistor establishes a connection between the gate electrode and the drain electrode of the driving transistor; the fourth transistor passes the driving current from the driving transistor to the organic light emitting element; and the organic light emitting element emits light in response to the driving current. | 07-02-2015 |
20150364082 | ORGANIC LIGHT EMITTING DIODE PIXEL DRIVING CIRCUIT AND DISPLAY DEVICE - An organic light emitting diode pixel driving circuit and a display device are disclosed. The circuit includes an external circuit and intra-pixel circuits, which each include a signal loading module, a driving transistor, and an organic light emitting diode. The external circuit loads a data signal to the driving transistors of the intra-pixel circuits during a signal loading phase, and each of the signal loading modules generates a drive signal based on a signal at the source of the driving transistor and on the threshold voltage thereof, to store the drive signal, to load the drive signal to the gate of the driving transistor during the signal loading phase, and to control the driving transistor by the drive signal stored in the signal loading phase and the signal at the source of the driving transistor to cause the organic light emitting diode to emit light during a light emitting phase. | 12-17-2015 |
20150364084 | PIXEL DRIVING CIRCUIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE - Embodiments of the invention provide a pixel driving circuit and a display device, and the pixel driving circuit includes a drive transistor and an organic light emitting diode, where a cathode of the organic light emitting diode receives a first power supply signal, and an anode of the organic light emitting diode is connected with a gate electrode of the drive transistor; the first power supply signal is loaded to the gate electrode of the drive transistor through the cathode and the anode of the organic light emitting diode to reset a signal at the gate electrode of the drive transistor during an operating period of the pixel driving circuit; and the first power supply signal is a low-level signal. | 12-17-2015 |
20150364087 | ORGANIC LIGHT EMITTING DIODE PIXEL DRIVING CIRCUIT AND DISPLAY DEVICE - An organic light emitting diode pixel driving circuit includes an external circuit and multiple intra-pixel circuits. Each of the intra-pixel circuits includes a signal loading module, a driving transistor and an organic light emitting diode. Each of the signal loading modules is configured to store an image data signal and the threshold voltage of the driving transistor as a drive signal and load the drive signal to the gate of the driving transistor in a signal loading phase, and to control the driving transistor by the drive signal stored in the signal loading phase and a signal at a source of the driving transistor to drive the organic light emitting diode to emit light in a light emitting phase. The external circuit is configured to load a first power supply signal to the source of the driving transistor in the light emitting phase. | 12-17-2015 |