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Flat panel display device with backlight electricity-saving mechanism

A flat-panel display and motor-saving technology, applied to static indicators, instruments, etc., can solve problems such as image quality degradation, screen flickering, and display contrast degradation

Inactive Publication Date: 2012-05-16
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, only lowering the intensity of the backlight will often lead to the deterioration of the display contrast, and the image quality will also be reduced. Especially in the dynamic adjustment operation, it is more likely to cause flickering on the screen

Method used

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  • Flat panel display device with backlight electricity-saving mechanism
  • Flat panel display device with backlight electricity-saving mechanism
  • Flat panel display device with backlight electricity-saving mechanism

Examples

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0019] refer to figure 2 A preferred embodiment of the flat panel display device 10 with backlight power saving mechanism of the present invention includes a timing controller 11, a source driver 12 electrically connected to the timing controller 11, a gate electrically connected to the timing controller 11 A pole driver 13, a pixel array unit 14 electrically connected to the source driver 12 and the gate driver 13, a picture brightness analysis unit 15 electrically connected to the timing controller 11, a picture brightness analysis unit electrically connected to the A dynamic control unit 16 of 15, a backlight driving unit 17 electrically connected to the dynamic control unit 16, a backlight unit 18 electrically connected to the backlight driving unit 17, and a backlight unit 18 electrically connected to the dynamic control unit 16 and the source The gamma v...

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Abstract

The invention relates to a flat panel display device with a backlight electricity-saving mechanism, which comprises a time sequence controller, a pixel array unit, an image brightness analysis unit, a backlight driving unit and a gamma voltage providing unit, wherein the time sequence controller is used for converting an image input signal into a sequence signal; the pixel array unit displays an image according to the sequence signal; the image brightness analysis unit analyzes the sequence signal to generate an image brightness signal corresponding to the image; the backlight driving unit adjusts backlight intensity according to the image brightness signal to save electricity; and the gamma voltage providing unit adjusts gamma voltage required for displaying the image according to the image brightness signal, wherein the gamma voltage is used for being matched with the adjusted backlight intensity to maintain the display contrast of the image.

Description

technical field [0001] The invention relates to a plane display device, in particular to a plane display device with a backlight power saving mechanism. Background technique [0002] Flat Panel Display (FPD) has the advantages of light and thin appearance, power saving and low radiation, so it is widely used in computer screens, mobile phones, personal digital assistants (PDA), flat-screen TVs, multimedia devices and other electronic products superior. refer to figure 1 The known flat panel display device 90 shown includes a pixel array unit 91 , a source driver 92 , a gate driver 93 and a backlight module 94 . The source driver 92 cooperates with the gate driver 93 to write a data signal into the pixel array unit 91 , and the backlight module 94 provides the backlight required for the pixel array unit 91 to display images. [0003] During the operation of the flat-panel display device 90, the backlight module 94 is usually in a fully open state, but in places where the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/34
Inventor 林雅兰余奕宽
Owner TOP VICTORY INVESTMENTS
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