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Method for optimizing display effect at power off and circuit thereof

A display effect, shutdown technology, applied in multiple input and output pulse circuits, static indicators, instruments, etc., can solve the problem of easy generation of H-block phenomenon, to eliminate H-block phenomenon and optimize display effect. Effect

Inactive Publication Date: 2009-10-14
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Abstract
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Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method and circuit for optimizing the display effect when shutting down, to solve the problem that the TFT-LCD module in the prior art is prone to H-block phenomenon when shutting down

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  • Method for optimizing display effect at power off and circuit thereof
  • Method for optimizing display effect at power off and circuit thereof
  • Method for optimizing display effect at power off and circuit thereof

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Embodiment Construction

[0038] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0039] The present invention provides a circuit for optimizing the display effect when shutting down, and implements a method for optimizing the display effect when shutting down by the circuit for optimizing shutting down, so that when the TFT-LCD module is shutting down, the CPV signal output by T / CON changes from No time delay is reduced, thereby eliminating the H-block phenomenon when the TFT-LCD module is turned off.

[0040] The present invention provides a method for optimizing the display effect during shutdown, such as Figure 4 As shown, the method mainly includes the following steps:

[0041] Step 401 , under the condition that the TFT-LCD module is turned off, generate a high-level or low-level Reset signal according to the VDD of the external input power supply and the set threshold voltage.

[0042] The...

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Abstract

The invention discloses a method for optimizing display effect at power off. The method comprises the following steps: generating a high level or low level reset signal according to external input power supply voltage (VDD) and set threshold voltage in the power off condition of a thin film transistor-liquid crystal display (TFT-LCD) module; and adjusting working state of a time schedule controller (T / CON) according to the level of the generated reset signal. The invention also provides a circuit for optimizing display effect at power off. In the circuit, clock (CPV) signals output by the T / CON are reduced in time delay at power off moment of the TFT-LCD module by loading the Reset signal on a Reset pin of the T / CON, thus eliminating H-block phenomenon of the TFT-LCD module at power off.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a method and a circuit for optimizing the display effect during shutdown. Background technique [0002] With the advancement of science and technology, various electronic products have become an indispensable part of people's life, and displays are important components of multimedia electronic products. Due to the advantages of power saving, small size, no radiation, low power consumption, high resolution, and stable image quality, liquid crystal displays have gradually replaced traditional cathode ray tube displays and are widely used in electronic products such as mobile phones, TVs, and computers. on the display panel. [0003] Existing liquid crystal displays generally adopt the circuit structure of thin film transistor liquid crystal display (TFT-LCD, Thin FilmTransistor-Liquid Crystal Display), such as figure 1 As shown, the circuit structure of the TFT-LCD module main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36H03K5/24
Inventor 窦芳
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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