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Gate drive circuit and liquid crystal display

A gate drive circuit, a technology of a liquid crystal display, which is applied to gate drive. It can solve the problems of abnormal display and insufficient charging of the gate drive circuit, and achieve the effect of solving abnormal display

Active Publication Date: 2018-04-17
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an array substrate and a display panel to solve the problem of display abnormality due to insufficient charge of the gate drive circuit when the existing display panel displays images at a high frame rate

Method used

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  • Gate drive circuit and liquid crystal display
  • Gate drive circuit and liquid crystal display
  • Gate drive circuit and liquid crystal display

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Embodiment Construction

[0055] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0056] The present invention provides a gate drive circuit suitable for liquid crystal displays. The gate drive circuit includes a plurality of cascaded GOA units, and each level of GOA units is connected to a corresponding clock signal. When the gate drive circuit is provided with two clock signals: the first clock signal CLK1 and the second clock signal CLK2, each cl...

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Abstract

The invention provides a gate drive circuit and a liquid crystal display. The gate drive circuit comprises multiple cascaded GOA (Gate Drive On Array) units; corresponding clock signals are accessed to each level of GOA unit; each level of GOA unit comprises a clock signal source CLK, a constant-voltage low-level source VSS, a pull-up control module, a pull-up module, a pull-down module, a pull-down maintenance module, a bootstrap capacitor Cb, a first module and a second module; both the first module and the second module comprise low-frame frequency and high-frame frequency signal input ends; and according to the received low-frame frequency or high-frame frequency signals, the first module and the second module output different scanning signals, the gate drive circuit can satisfy the high-frame frequency refreshing speed of the liquid crystal display panel, and the problem of a smear phenomenon in the case of high-frame frequency screen working of the liquid crystal display panel orabnormal display due to insufficient charging can be solved.

Description

technical field [0001] The invention relates to the field of display panel manufacturing, in particular to a gate drive. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) is currently the most widely used display product in the market. Its production process technology is very mature, the product yield rate is high, the production cost is relatively low, and the market acceptance is high. [0003] The development of existing liquid crystal display devices presents a development trend of narrow frame, thinner profile and lower cost. One of the important technologies is GOA (Gate Drive On Array, array substrate row drive) technology. The scanning line driving circuit is integrated on the array substrate of the liquid crystal panel through the GOA technology, thereby reducing the product cost in terms of material cost and manufacturing process. [0004] figure 1 It is a schematic diagram of a GOA circuit in the prior art. The GOA circuit incl...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3677
Inventor 徐向阳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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