Gate drive circuit
A gate drive circuit and drive voltage technology, which is applied to static memory, instruments, static indicators, etc., can solve the problems of increasing the power consumption of known shift registers and being unable to be further utilized, so as to increase the drive capability and reduce The effect of power consumption
Active Publication Date: 2016-08-17
AU OPTRONICS CORP
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Problems solved by technology
However, in the operation of the conventional shift register, when the gate signal of the shift register is pulled down, the charge on the gate line of the shift register is guided to the low voltage source and cannot be Further use, and then increase the power consumption of the known shift register
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[0016] Please also refer to figure 1 and figure 2 , figure 1 It is a schematic diagram of the gate drive circuit of the present invention, figure 2 for figure 1 A schematic diagram of the first embodiment of the Nth stage shift register of the gate driving circuit. As shown in the figure, the gate drive circuit 100 includes a multi-stage shift register. For the convenience of illustration, the gate drive circuit 100 only shows the (N-1)th shift register 110 (N-1), the N-stage shift register 110N and (N+1)-stage shift register 110 (N+1), wherein only the N-stage shift register 110N is figure 2 The internal structure is shown in , and the shift registers of the other stages are similar to the shift register 110N of the Nth stage, so no further description is given. N is a positive integer greater than 1. The (N-1)th stage shift register 110(N-1) is used to provide the gate signal G(n-1), and the Nth stage shift register 110N is used to provide the gate signal G(n) , th...
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The invention provides a grid electrode drive circuit. An N-th level shifting register of the grid electrode drive circuit comprises a pull-up unit electrically connected with a grid electrode line and used for pulling up an N-th level grid electrode signal of the grid electrode line according to a first drive voltage and a high-frequency clock pulse signal; an energy storage unit provided with a first end electrically connected with the pull-up unit and used for supplying the first drive voltage to the pull-up unit according to an (N-1)-th level grid electrode signal, and a second end; a drive unit electrically connected with the first end of the energy storage unit and the grid electrode line and used for executing a charging program on an energy storage unit of an (N+1)-th level shifting register according to the first drive voltage and the N-th level grid electrode signal; and an energy transmission unit electrically connected with the grid electrode line and used for, when the N-th level grid electrode signal is pulled down, transmitting charge of the grid electrode line according to a post-level grid electrode signal to an energy storage unit of a post-level shifting register. According to the invention, the power loss of the grid electrode drive circuit is reduced while the drive capability of the grid electrode drive circuit is improved.
Description
technical field [0001] The invention relates to a gate drive circuit, in particular to a gate drive circuit capable of reducing power consumption. Background technique [0002] Generally speaking, a liquid crystal display panel includes a plurality of pixels, a gate driving circuit and a source driving circuit. The source driving circuit is used for writing data signals to the turned-on pixels. The gate driving circuit includes a multi-stage shift register for providing multiple gate signals to control the on and off of the pixels. However, in the operation of the conventional shift register, when the gate signal of the shift register is pulled down, the charge on the gate line of the shift register is guided to the low voltage source and cannot be Further utilization increases the power consumption of the known shift register. Contents of the invention [0003] The purpose of the present invention is to provide a gate driving circuit that can reduce power consumption, ...
Claims
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IPC IPC(8): G09G3/36G11C19/28
Inventor 林炜力刘俊欣陈嘉亨侯淑方
Owner AU OPTRONICS CORP