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Power supply time sequence control circuit and control method, display driving circuit and display device

A timing control circuit and circuit power technology, applied to static indicators, instruments, etc., can solve problems such as power supply timing deviation

Active Publication Date: 2019-12-06
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a power supply sequence control circuit and control method, a display drive circuit, and a display device, which are used to solve the problem that software programming controls the power supply sequence, resulting in deviations in the power supply sequence

Method used

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  • Power supply time sequence control circuit and control method, display driving circuit and display device

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present application, unless otherwise specified, "plural...

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Abstract

The embodiment of the invention provides a power supply time sequence control circuit, a control method, a display driving circuit and a display device, relates to the technical field of display, which are used for solving the problem of deviation of a power supply time sequence caused by software programming control of the power supply time sequence. The power supply time sequence control circuitcomprises a time delay control sub-circuit, a time delay detection sub-circuit and an output sub-circuit. The delay control sub-circuit is used for delaying the first voltage output by the first input voltage end for a preset time and then outputting the delayed first voltage. The delay detection sub-circuit is used for sending a trigger signal to the output sub-circuit when detecting that the first voltage is received after the preset time. The output sub-circuit is further used for being in an on state according to the trigger signal and outputting the first voltage of the first input voltage end to the signal output end.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a power supply sequence control circuit and control method, a display drive circuit, and a display device. Background technique [0002] A display device, such as a liquid crystal display (Liquid Crystal Display, TFT-LCD), or an organic light emitting diode (Organic Light Emitting Diode, OLED) display device includes a display area for displaying images, and a wiring area located around the display area . A plurality of driving circuits are arranged in the above-mentioned wiring area for driving and controlling the display of images. [0003] In the prior art, software programming (Code) is usually used to control the power supply sequence of the above-mentioned multiple driving circuits. However, because software programming itself is prone to bugs, there is a deviation between the actual power supply sequence and the preset power supply sequence, resulting in abnormal displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G3/2092G09G2330/026G09G2310/08G09G2330/028
Inventor 朱立新聂春扬
Owner BOE TECH GRP CO LTD
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