Method for backlight adjustment and image processing

A technology of image processing and backlight adjustment, applied in the direction of cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of unable to maintain the original image display effect and reduce the image quality, and achieve the effect of improving image contrast and reducing thickness

Inactive Publication Date: 2011-01-26
WINTEK CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method improves the contrast of the displayed image by adding the peak detection part, it will cause the image quality to degrade, and the display effect of the original image cannot be maintained.

Method used

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  • Method for backlight adjustment and image processing
  • Method for backlight adjustment and image processing
  • Method for backlight adjustment and image processing

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Embodiment Construction

[0031] In order to have a further understanding of the purpose, structure, features and functions of the present invention, the detailed description is as follows in conjunction with the embodiments. The above descriptions about the contents of the present invention and the following descriptions of specific implementations are used to demonstrate and explain the principles of the present invention, and provide further explanations of the patent application scope of the present invention.

[0032] Please refer to figure 1 , is a flow block diagram of a preferred embodiment of the present invention, the backlight modulation and image processing method of this embodiment, including:

[0033] Step S200: backlight modulation step; and

[0034] Step S300: image processing step.

[0035] Wherein, step S200 includes:

[0036] Step S210: obtaining an average image level value; and

[0037] Step S220: Obtain a backlight modulation rate.

[0038] Please refer to FIG. 2a again, whic...

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Abstract

The invention relates to a back light modulating and image processing method, which is characterized in that: Average Picture gray Level (APL) is obtained by analyzing and calculating image information of each image, and then the back light modulating rate is calculated according to the APL in order to calculate the back light brightness needing to be reduced of each image realize the purpose of back light modulating, while modulating the back light, the color model of the image information is converted and undergoes re-mapping so that the image information is rehandled to match the image quality displayed after the back light modulating so that the image is free from distortion. In this way, the method can realize the purposes of improving the back light blinking problem while back lightmodulating, increasing the image contrast effect and attaining the electricity saving effect.

Description

technical field [0001] The present invention relates to a method for backlight modulation and image processing, in particular to a method for appropriately modulating the backlight brightness for different image data, and reprocessing the original image data to match the modulated backlight brightness, and Maintain the original image quality. Background technique [0002] In order to save power consumption in early electronic devices with liquid crystal screens, a simple function to adjust the backlight brightness was designed on the backlight module. mode) or normal mode. In bright mode, the brightness is about 400cd / m2; in normal mode, the brightness is about 250cd / m2 to achieve a simple power saving function. However, this method of modulating the brightness of the backlight has two problems that need to be improved. First, it is necessary to change the backlight mode according to the user's operating state, which is an extra step for the user; second, For different in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36G09G5/10G09G5/02
Inventor 许景富赖志章李俊贤
Owner WINTEK CORP
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