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A white balance adjustment method and system

An adjustment method and adjustment system technology, which are applied to static indicators, color signal processing circuits, instruments, etc., can solve the problems of low adjustment efficiency and poor adjustment effect, and achieve high adjustment efficiency, short adjustment time and good adjustment effect. Effect

Inactive Publication Date: 2007-11-28
DAYU TECH ELECTRONICS FACTORY DONGGUAN HUANGJIANG
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a white balance adjustment method, aiming to solve the problems in the prior art that when adjusting the white balance, the values ​​of R, G, and B are adjusted separately, resulting in low adjustment efficiency and relatively poor adjustment effect

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  • A white balance adjustment method and system

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] In the embodiment of the present invention, according to the x, y in the color coordinates (x, y) corresponding to the color temperature, and the relationship between the brightness Lv and R, G, B, the values ​​​​of R, G, and B are simultaneously adjusted, thereby adjusting x, y, and Lv value, so that the bright and dark levels of the display can meet the customer's requirements at the same time.

[0021] When adjusting the white balance of the display screen, configure the light level and dark level of the display screen by adjusting the Gain and Offset of the signal. Generally, the bright...

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Abstract

This invention provides a white balance adjusting method and a system, in which, the method includes: adjusting RGB gain value and configuring bright step of a display screen to meet the needs of clients based on the relation of coordinate and brightness corresponding to a color temperature with RGB gain, adjusting RGB offset value and configuring the dark step of the display screen to meet the needs of the clients based on the relation of color coordinate corresponding to the color temperature and the RGB offset to just if the bright step and the dark step meet the needs of the clients simultaneously, if so, it ends the adjustment, otherwise, it continues configuring bright and dark steps of the screen.

Description

technical field [0001] The invention belongs to the field of display devices, and in particular relates to a white balance adjustment method and system. Background technique [0002] During the production process, liquid crystal display (Liquid Crystal Display, LCD) devices, such as LCD TVs or LCD monitors, generally need to adjust the white balance. Gain and Offset affect the color output of the display. The Gain and Offset of the front-end signal are generally automatically adjusted through the IC to capture the level of the signal, and the back-end signal needs to be adjusted with the help of external testing instruments to meet the customer's requirements. [0003] The essence of white balance adjustment is to adjust the color temperature so that the output of the display screen can achieve the customer's visual effect. Generally, it will be adjusted from two aspects: bright level and dark level. Among them, the Gain of the bright level adjustment signal and the Offset ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73G09G3/36
Inventor 武永华饶春荣万文国
Owner DAYU TECH ELECTRONICS FACTORY DONGGUAN HUANGJIANG
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