Gate drive circuit and liquid crystal display device

A gate drive circuit and gate drive technology, applied in static indicators, instruments, etc., can solve problems such as frame drop, affect display effect, freeze, etc., and achieve the effect of avoiding tearing and improving display quality
CN105609078BActive Publication Date: 2018-02-06KUSN INFOVISION OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
KUSN INFOVISION OPTOELECTRONICS
Publication Date
2018-02-06

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Abstract

The embodiments of the invention disclose a grid driving circuit and a liquid crystal display apparatus. The grid driving circuit comprises multiple grid driving unit circuits, a clock signal line and a trigger signal line. Each grid driving unit circuit comprises a precharge unit, a stable signal generation unit, a pull-down stable unit, an output unit and a synchronous trigger unit. When a video card sends a new frame of an image to the T-con of a liquid crystal display apparatus, the initial end of the new frame of the image carries vertical synchronization signals, the T-com, after generating trigger signals according to the vertical synchronization signals, providing the trigger signals to the synchronous trigger units, and when the synchronous trigger units receive the trigger signals, control nodes and grid scanning signals which currently travel to a tail-end row are pulled down to low level in a forced mode. The grid driving circuit and the liquid crystal display apparatus can eliminate an image tearing phenomenon and improve the display quality.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to a gate drive circuit and a liquid crystal display device. Background technique

[0002] Liquid Crystal Display (LCD) has the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and currently occupies a dominant position in the field of flat panel display. Liquid crystal display devices are very suitable for application in various office automation and audio-visual equipment such as desktop computers, palmtop computers, personal digital assistants (Personal Digital Assistant, PDA), portable phones, and television boxes.

[0003] Figure 1A It is a schematic diagram of a display screen of an existing liquid crystal display device, such as Figure 1A As shown, the graphics card writes one frame of picture data 2 into the frame buffer 4 at a time, and the frame buffer 4 has enough...

Claims

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