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A polarity inversion control method and display terminal of a liquid crystal display

A liquid crystal display and polarity inversion technology, applied to static indicators, instruments, etc., can solve problems such as customer's unpleasant after-sales service experience, significant impact on brand image, and loss of terminal manufacturers, achieving fast and effective maintenance effects, reducing After-sales maintenance costs and the effect of improving user experience

Inactive Publication Date: 2015-08-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the manufacturer needs to rework the software of the terminal equipment, resulting in a long cycle to solve the problem, causing customers an unpleasant after-sales service experience, having a major impact on the brand image, and easily causing losses to the terminal manufacturer

Method used

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  • A polarity inversion control method and display terminal of a liquid crystal display
  • A polarity inversion control method and display terminal of a liquid crystal display

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Embodiment Construction

[0029] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

[0030] A polarity inversion control method of a liquid crystal display, applied to an active matrix-driven liquid crystal display terminal, the liquid crystal display terminal includes smart terminals such as mobile phones, tablet computers, and notebook computers, and the steps include:

[0031] S1. Write display screen initialization codes respectively corresponding to each polarity inversion mode to the memory of the liquid crystal display terminal, and the polarity inversion mode includes frame inversion mode, row inversion mode, column inversion mode and dot inversion mode;

[0032] S2. The terminal processor detects the polarity inversion mode switching instruction, and reads the display screen initialization code in the specified polarity inversion mode from the memory to the LCDC register;

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Abstract

The invention relates to an LCD polarity-overturn control method and an LCD display terminal. The method comprises the steps that 1) setup codes of a display screen respectively corresponding to different polarity overturn modes, including a frame overturn mode, a row overturn mode, a column overturn mode and a point overturn mode, are written in a memory of the LCD display terminal; a terminal processor detects a polarity-overturn mode switching instruction, and reads the setup code of the display screen in the instructed polarity mode into an LCDC (Liquid Crystal Display Controller) register; and according to the setup code of the display screen, an LCDC sends resetting signals to an LCD driver, and implements initialization of the display screen in the instructed polarity overturn mode. When the current overturn mode of the display screen causes failure of the display screen, another liquid-crystal molecule overturn mode can be directly turned to, thereby avoiding heavy load caused by replacement of control software, improving user experience, and decreasing maintenance cost of a manufacturer.

Description

technical field [0001] The invention relates to the driving of a liquid crystal display, in particular to a method for controlling polarity inversion of a liquid crystal display and a display terminal. Background technique [0002] Because the liquid crystal molecules of the liquid crystal display have a characteristic, they cannot be fixed at a certain voltage all the time. Otherwise, even if the voltage is canceled for a long time, the liquid crystal molecules will no longer be able to change due to the change of the electric field due to the destruction of the characteristics. turning, so every once in a while the voltage has to be brought back to it's original state. In order to ensure the activity of its liquid crystal molecules, the existing liquid crystal display screen will flip the liquid crystal molecules at a certain frequency when displaying the picture, so that the liquid crystal molecules will not be fixed to a certain direction, resulting in loss of activity, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 靳勇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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