A gate drive circuit and display device
A gate drive circuit and display device technology, which is applied to static indicators, static memory, instruments, etc., can solve the problems that the power consumption of the gate drive circuit is not reduced, the overall power consumption of the liquid crystal display is large, and the black-sweeping area is not closed, etc.
Active Publication Date: 2016-03-16
HEFEI BOE OPTOELECTRONICS TECH +1
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Problems solved by technology
[0004] The existing circuit design only reduces the power consumption of the source drive circuit. However, when the TFT liquid crystal display is in a partial display state, for example, when playing in full screen with an aspect ratio of 4:3 and an aspect ratio of 16 : 9 film, there are black borders on the upper and lower sides of the screen (that is, the black-sweeping area), but the gate drive circuit still scans line by line from top to bottom without turning off the gate signal of the black-sweeping area, so that the grid The power consumption of the pole drive circuit has not been reduced, which will cause the overall power consumption of the liquid crystal display is still very large
Method used
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[0037] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0038] The present invention provides a gate drive circuit, the schematic diagram of which is shown in image 3 As shown, the shift register 10 composed of a plurality of shift register units connected in sequence is characterized in that it also includes: a first gating module 20 and / or a second gating module 30;
[0039] Wherein the first gating module 20, which is connected to the gate scan trigger signal line and the gate signal line, is used to pass the gate scan trigger signal on the gate scan trigger signal line according to the gate signal provided by the gate scan signal line. Provided to a predetermined shift register unit, so that the shift register 10 starts t...
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The present disclosure provides a gate driving circuit and a display apparatus, wherein the gate driving circuit comprises a shift register (10) including a plurality of shift register units connected with each other sequentially, and the gate driving circuit further comprises: a first strobe module (20) and / or a second strobe module (30); the first strobe module (20), connected to a gate scanning trigger signal line (STV) and strobe signal lines (CS0, CS1); the second strobe module (30), connected to the strobe signal lines. With incorporation of the first strobe module (20), a gate scanning trigger signal on a gate scanning trigger signal line (STV) is supplied to a predetermined shift register unit according to strobe signals provided on the strobe signal lines (CS0, CS1); and the second strobe module (30), which is configured to cut off communication between the predetermined shift register unit and its previous stage of shift register unit according to the strobe signals provided on the strobe signal lines (CS0, CS1), so that the shift register is turned off from the predetermined shift register unit, and thus it can be achieved on a liquid crystal display panel that the gate signal(s) in a black-scan area are selectively turned off in a partial display mode, thus power consumption of the whole display panel being reduced.
Description
technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a gate driving circuit and a display device. Background technique [0002] In recent years, with the vigorous development of semiconductor technology, portable electronic products and flat panel display products are also emerging. Thin Film Transistor (TFT) liquid crystal display has gradually become a standard output device of various electronic products due to its advantages of low operating voltage, no radiation scattering, light weight and small size. As various display devices, such as mobile phones, tablet computers (PAD) and other systems become more and more integrated and thinner, the system's central processing unit (Central Processing Unit, referred to as CPU) has been upgraded from the previous single-core to the current Dual-core, quad-core, octa-core and even more core product systems are coming to the market one after another. The power cons...
Claims
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IPC IPC(8): G09G3/36
CPCG11C19/287G09G3/20G09G3/3674G09G3/3677G09G2300/0426G09G2310/0267G09G2310/0286G09G2310/04G09G2310/08G09G2330/021
Inventor 郑亮亮何剑
Owner HEFEI BOE OPTOELECTRONICS TECH