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Anti-black screen circuit and method, driving circuit, and display device

A technology for driving circuits and circuits, applied in the fields of anti-black screen circuits and methods, display devices, and driving circuits, capable of solving problems such as black screens, and achieving the effect of avoiding black screen phenomena and triggering overload protection

Active Publication Date: 2022-06-17
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current liquid crystal display products, especially large-size liquid crystal display products, are prone to black screen phenomenon when starting up or at low temperature

Method used

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  • Anti-black screen circuit and method, driving circuit, and display device
  • Anti-black screen circuit and method, driving circuit, and display device
  • Anti-black screen circuit and method, driving circuit, and display device

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Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] In order to facilitate understanding of the solutions provided for this application. The following is a brief description of the display:

[0036] The display includes a display panel and a driving circuit. Among them, the function of the display panel is to emit light to display patterns, and the drive circuit is used to provide the signals required for display by the display panel, and control the operation of the display panel through these signals.

[0037] Display panels vary in structure based on different types of displays. Taking a liquid crystal display as an example, the display panel includes an array substrate, a color filter substrate arranged in a cell with the array substrate, and a liquid crystal layer sandwiched betwe...

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PUM

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Abstract

The invention discloses an anti-black screen circuit and method, a driving circuit and a display device, belonging to the field of display technology. The anti-black screen circuit is applied to a drive circuit of a display, and the drive circuit includes an integrated power management circuit, a level conversion circuit and a counter control register, and the anti-black screen circuit includes: a determination sub-circuit configured to determine Among the multiple clock signals output by the control register, whether there are two or more clock signals that are at an active level at the same time; the control subcircuit is configured to, when the determining subcircuit determines that there are two or more clock signals that are at an active level at the same time, Cutting off the gate high level and gate low level signals output from the integrated power management circuit to the level conversion circuit avoids the phenomenon of black screen when the liquid crystal display is turned on.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an anti-black screen circuit and method, a driving circuit and a display device. Background technique [0002] With the development of display technology and the improvement of people's material level, the requirements for all aspects of the display are also getting higher and higher. For existing products, eliminating various display defects is an important way to improve product quality. Current liquid crystal display products, especially large-size liquid crystal display products, are prone to a black screen phenomenon when powered on or at a low temperature. SUMMARY OF THE INVENTION [0003] Embodiments of the present invention provide an anti-black screen circuit and method, a driving circuit, and a display device, which can solve the problem of a black screen at startup of a liquid crystal display product. The technical solution is as follows: [0004] On the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/20G09G3/36
Inventor 翁彬许炜泽翁祖伟赖意强
Owner BOE TECH GRP CO LTD
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