Patent application number | Description | Published |
20120293401 | SHIFT 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 |
20120293737 | SHIFT 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 level pulling-down circuit, a outputting 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. The disclosed technical solution stabilizes the wave output from the scan signal output terminal and has small noise by means of a design of pulling down the level, and may realize the GOA circuit utilizing less TFTs circuits, so that the circuit structure is simple and power consumption is small. | 11-22-2012 |
20140049568 | AMOLED DRIVING AND COMPENSATING CIRCUIT AND METHOD, AND AMOLED DISPLAY DEVICE - The present disclosure discloses an AMOLED driving and compensating circuit and method, and AMOLED display device. The driving and compensating circuit comprising: several driving circuits set inside several pixel regions used for driving several AMOLEDs; an external compensating circuit set outside the pixel regions used for eliminating an effect of threshold voltage of a driving thin film transistors in the several driving circuits set inside the several pixel regions on driving currents passing through the driving thin film transistors. The driving and compensating method comprising: storing threshold voltage of the driving thin film transistors of the several driving circuits set inside the several pixel regions; storing grayscale voltage of each of the several driving circuits set inside the several pixel regions; gate voltage of the driving thin film transistor of each of the several driving circuits set inside the several pixel regions jumping to a sum of the threshold voltage and the grayscale voltage of the driving circuit. The display device comprises the AMOLED driving and compensating circuit. | 02-20-2014 |
20140055325 | PIXEL UNIT DRIVING CIRCUIT AND METHOD THEREOF, PIXEL UNIT AND DISPLAY APPARATUS - A pixel unit driving circuit and a method thereof, a pixel unit and a display apparatus can improve uniformity in the brightness of an OLED panel. The pixel unit driving circuit comprises a driving thin film transistor (DTFT), a matching thin film transistor (MTFT), a signal-erasing thin film transistor (ETFT), a charging control unit ( | 02-27-2014 |
20140055689 | Opposed Substrate, Manufacturing Method Thereof And LCD Touch Panel - An opposed substrate ( | 02-27-2014 |
20140085283 | Gate Driving Circuit And Display - A gate driving circuit and a display, the gate driving circuit comprises a plurality of shift register connected in cascade. The shift register comprises: a signal outputting circuit ( | 03-27-2014 |
20140125906 | Array Substrate, Display Device and Method for Controlling Refresh Rate - The present invention discloses array substrate, display device and method for controlling refresh rate of an array substrate. The array substrate includes; a plurality of pixel structures each including gate line, data line, common electrode line, first switching element at intersection of the gate line and the data line, pixel electrode, second switching element, and first transparent electrode. Gate, source and drain of the first switching element are connected to the gate line, the date line and the pixel electrode, respectively. Gate, source and drain of the second switching element are connected to second switching controlling line, common electrode signal terminal and the first transparent electrode, respectively. A first storage capacitance is formed between the pixel electrode and the common electrode line and/or between the pixel electrode and the gate line, and a second storage capacitance is formed between the pixel electrode and the first transparent electrode. | 05-08-2014 |
20150084843 | PIXEL DRIVING CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY APPARATUS - Provided are a pixel driving circuit, a driving method thereof and a display apparatus. The pixel driving circuit includes an electroluminescent element, a driving transistor, a switch unit, a charging unit, a compensation unit, a cutoff unit and a storage unit. The pixel driving circuit charges the storage capacitor by the charging unit first, and then uses the method of charging first and discharging later to make the voltage in the storage capacitor match the driving current quickly to perform fast compensation of the threshold voltage V | 03-26-2015 |