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Electricity-saving device for liquid crystal display and method thereof

A technology of liquid crystal display and power saving device, which is applied in static indicators and other directions, can solve the problems of inducing power consumption and improving overall power consumption, and achieve the effect of preventing power consumption and saving power consumption

Inactive Publication Date: 2006-03-01
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, as the power of the device is turned on, it continues to receive a constant current supply regardless of the state of the image, thereby inducing unnecessary power consumption, thereby increasing the overall power consumption

Method used

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  • Electricity-saving device for liquid crystal display and method thereof
  • Electricity-saving device for liquid crystal display and method thereof

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Embodiment Construction

[0034] Below, the preferred embodiments of the LCD power saving device and method of the present invention will be described in detail with reference to the accompanying drawings as follows:

[0035] LCD power consumption saving device based on the present invention such as figure 1 As shown, it is composed of the following parts. That is, the ADC (11) that converts the analog image signal into a digital signal; the pulse counter (12) that supplies the digital image signal output from the above-mentioned ADC (11) to the LCD (13) in frame units; On the back side of (13), a backlight (14) that emits light according to an approved amount of current; a power control unit (15) that controls the amount of current of the above-mentioned backlight (14); and a control unit that controls the above-mentioned power control unit (15) ( 16). Control of the power supply control unit by the control unit is as follows. That is, analyze the picture formed in the above-mentioned pulse counter...

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Abstract

The electricity-saving device of liquid crystal display device includes the following components: ADC for converting analog image signal into digital signal; pulse counter for displaying data image signal outputted from ADC into picture, forming frame unit and providing it for LCD; backlight source placed on the back surface of the above-mentioned LCD for emitting light according to the acceptable current quantity; and control component for regulating current quantity authorized by backlight source according to the image state of frame unit formed on the above-mentioned pulse counter. Said invention also provides the concrete steps of said electricity-saving method.

Description

technical field [0001] The invention relates to a liquid crystal display power saving device and a method thereof. Background technique [0002] Currently, various display elements such as cathode ray tubes (CRTs) and plasma displays (PDPs) are widely used in image devices such as monitors or televisions. [0003] CRT is excellent in terms of gray scale and price, and PDP has developed many technologies in terms of enlargement. However, compared with CRT and PDP, liquid crystal display (LCD) is not only light in weight, but also can achieve ultra-thinness. At the same time, due to its excellent High-definition display characteristics, so its scope of use is gradually expanding. [0004] In addition, compared with the PDP, it is difficult to achieve large-scale disadvantages due to the development of technology, so it can be said that its prospects are very broad. [0005] However, PDP reproduces colors according to its own gas discharge. On the contrary, LCD only uses ligh...

Claims

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Application Information

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IPC IPC(8): G02F1/133
Inventor 金孝成
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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