gate driver circuit
A gate driver and circuit technology, applied to instruments, static indicators, etc., can solve the problems that pixels cannot be written into correct data, affect the picture quality of display devices, and transistors are too late to turn on/off, etc., to improve the picture quality Effect
Active Publication Date: 2021-08-27
AU OPTRONICS CORP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
If the rise time / fall time is too long, the transistor coupled to the gate line will not be turned on / off in time, so that the pixel cannot be written with correct data, which will affect the picture quality of the display device
Method used
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Embodiment Construction
[0040] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
[0041] Please refer to figure 1 , figure 1 A block diagram of a gate driver circuit according to an embodiment of the invention is shown. The gate driver circuit 1 includes a plurality of single-stage shift register circuits 10_1˜10_K, wherein K is the number of shift register circuits, and K is a positive integer. The gate driver circuit 1 can be disposed in a display device (not shown). The display device may include a plurality of gate lines (not shown) and a plurality of data lines (not shown), and the gate lines and the data lines are arranged alternately. The gate driver circuit 1 can be coupled to these gate lines. Further, the shift register circuits 10_1˜10_K of the gate driver circuit 1 are respectively coupled to one of the gate lines to provide scanning signals G[1]˜G[K] to transistors (not shown) of the gate l...
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The present invention provides a gate driver circuit comprising a multi-stage single-stage shift register circuit. The shift register circuits of various levels include a bidirectional scanning control unit, a scanning signal output unit, a voltage stabilizing unit and a voltage raising unit. The bidirectional scan control unit is used for receiving a first scan control signal and a second scan control signal. The scan signal output unit is coupled to the bidirectional scan control unit for outputting a scan signal. The voltage stabilizing unit is coupled to the bidirectional scanning control unit and the scanning signal output unit, and stabilizes the scanning signal according to a first clock signal and a second clock signal. The voltage raising unit is coupled to the bidirectional scanning control unit and the scanning signal output unit, and adjusts the scanning signal according to a first reference voltage of a previous stage shift register circuit and a second reference voltage of a previous stage shift register circuit .
Description
technical field [0001] The present invention relates to a gate driver circuit, in particular to a gate driver circuit for a display device. Background technique [0002] In the prior art, a display panel usually includes a plurality of gate lines and a plurality of data lines. The gate lines and the data lines are arranged in a staggered manner. One or more pixels are arranged at a position where each gate line intersects with a data line. By using the scanning signal to control the switch of the transistor coupled to the gate line to select whether to let the signal on the data line be written into the pixel, so as to achieve the purpose of display. [0003] As people's requirements on the resolution of display devices are getting higher and higher, the number of gate lines and data lines in the display device is bound to increase accordingly, so that the scanning time between gate lines is shortened. The shortening of the scan time will make the rising time and the foll...
Claims
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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/0267
Inventor 邓名扬林志隆蔡孟杰
Owner AU OPTRONICS CORP