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Liquid crystal display capable of automatic regulating brightness and its regulating method

A liquid crystal display, automatic adjustment technology, applied in static indicators, instruments, etc., can solve the problems of manual adjustment of brightness, inconvenience, etc., and achieve the effect of prolonging lamp life, reducing power consumption, and facilitating users

Inactive Publication Date: 2006-06-28
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

The brightness of the existing liquid crystal display is a fixed setting, and the user needs to manually adjust the brightness to adjust the brightness, which is very inconvenient, especially for users who use notebook computers on the road, due to the constant change of the ambient brightness, in order to achieve a better use effect, LCD brightness must be adjusted from time to time

Method used

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  • Liquid crystal display capable of automatic regulating brightness and its regulating method
  • Liquid crystal display capable of automatic regulating brightness and its regulating method
  • Liquid crystal display capable of automatic regulating brightness and its regulating method

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Embodiment Construction

[0026] Such as figure 1 As shown, the present invention provides a liquid crystal display that can automatically adjust the brightness, including a microprocessor control module 1, a brightness adjustment module 2, a brightness acquisition module 3 and a brightness feedback module 4,

[0027] The microprocessor control module 1 includes a microprocessor 11 that accepts instructions and outputs control signals to the brightness adjustment module, and a read-only memory 12 that is connected to the microprocessor 11 and is used to save user setting parameters. Including a control board 13 connected to the microprocessor 11;

[0028] The brightness adjustment module 2 includes an inverter 21 connected to the microprocessor 11 and a liquid crystal display backlight adjustment circuit 22 connected to the inverter 21;

[0029] Brightness acquisition module 3 comprises a light sensor 31 and the operational amplifier 32 that is connected with light sensor 31, and light sensor 31 is us...

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Abstract

A method for automatically regulating brightness of liquid crystal display includes adding brightness collection module and brightness feedback module in addition to original microprocessor control module and brightness regulation module, using microprocessor to compare environmental brightness signal to preset value and to regulate display backlight source to be brightness of preset value according to comparison result output control signal, then using backlight source sampling signal collected by brightness feedback module to carry out feedback control.

Description

1. Technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display capable of automatically adjusting brightness and an adjusting method thereof. 2. Background technology [0002] Liquid crystal display uses fine liquid crystal particles evenly arranged on the screen to achieve the purpose of restoring the picture by "blocking" or "turning on" the light. Because the liquid crystal material itself does not emit light, there are lamp tubes as light sources on both sides of the display screen. , to provide background lighting. In the process of using a liquid crystal display, human eyes are more sensitive to the brightness of the display environment, especially sudden changes in brightness will have a negative impact on human vision, which is especially important for users of notebook computers. In order to achieve the most comfortable visual effect, people need to adjust the brightness of the liquid crystal display to adapt ...

Claims

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Application Information

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IPC IPC(8): G02F1/133G09G3/34
Inventor 郭强
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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