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Residual image eliminator of liquid-crystal display device

A liquid crystal display and clearing device technology, which is applied in the computer field, can solve problems such as inability to solve liquid crystal display afterimages, achieve the effect of solving the problem of liquid crystal display afterimage removal and preventing damage from occurring

Inactive Publication Date: 2006-11-01
LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Therefore, the first purpose of the liquid crystal display afterimage removal device provided by the present invention is to solve the liquid crystal display afterimage that cannot be solved by specific software in the form of logic circuits without causing damage to the drive IC inside the liquid crystal display. question

Method used

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  • Residual image eliminator of liquid-crystal display device
  • Residual image eliminator of liquid-crystal display device
  • Residual image eliminator of liquid-crystal display device

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Embodiment Construction

[0052] The constitution of the present invention will be described below with reference to the accompanying drawings.

[0053] Figure 4 According to the present invention, it is a schematic diagram of the composition of a liquid crystal display afterimage removal device.

[0054] refer to Figure 4 , the present invention is made up of central processing unit 110, switch unit 120, pump logic unit 130, drive logic unit 140, liquid crystal display bias unit 150, LED161, liquid crystal display connector 180 and afterimage removal unit 170. Wherein, the central processing unit 110 determines whether to output the liquid crystal display power start signal and the backlight power start signal according to whether the liquid crystal display module and the backlight have power supply; the above-mentioned switch unit 120 turns on the input power supply voltage VCC according to the above-mentioned liquid crystal display power start signal , make the first voltage V1 flow to the liqui...

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Abstract

An afterimage cleanup installment of personal portable terminal liquid-crystal display, it includes: the central processing unit which output the power startup signal and the back light startup signal of the liquid-crystal display for the driving liquid-crystal display module; the switch unit which control the switch condition of input power according to the power startup signal; adjust the output pressure of the switch unit, form the essential run basic pressure of the liquid-crystal display in the offset unit of it; output the formative pressure to the offset unit which provide the liquid-crystal display module driving pressure; respond the hard startup, cut-up the afterimage cleanup unit of the liquid-crystal display power startup signal. Under certain condition which the installment can not damage the liquid-crystal display module, respond the restart operation, protects the internal driving interior communications of the liquid - crystal display module from damage and cleanup the afterimage of the liquid - crystal display effectively.

Description

technical field [0001] The invention relates to the field of computers, in particular to a device for removing afterimages of liquid crystal displays of portable terminal machines for personal use. Background technique [0002] figure 1 It is a schematic diagram of the structure of an existing liquid crystal display afterimage removal device. [0003] refer to figure 1 , the existing liquid crystal display residual image removal device is composed of central processing unit 10, switch unit 20, pump logic unit (pump logic) 30, drive logic unit (boost logic) 40, liquid crystal display bias unit 50, LED61, residual image removal unit 70 and LCD connector 80. In order to drive the LCD module, the above-mentioned central processing unit 10 outputs the LCD power activation signal and the backlight activation signal (LCD-PWR-EN) (WHT-PWR-EN). The switch unit 20 is used to control the off and on states of the input power supply voltage VCC according to the power start signal inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G02F1/133
Inventor 金宗大
Owner LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD