Method and system for automatic measuring and regulating gray level white balance of display apparatus

A technology of automatic measurement and display, which can be used in televisions, electrical components, color signal processing circuits, etc., and can solve the problems of time and labor waste.

Inactive Publication Date: 2008-04-02
MARKETECH INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another object of the present invention is to cooperate with circuit and program design to automatically write the group of gain values ​​into a memory of the display, so as to adjust the gray scale and white balance of th

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  • Method and system for automatic measuring and regulating gray level white balance of display apparatus
  • Method and system for automatic measuring and regulating gray level white balance of display apparatus
  • Method and system for automatic measuring and regulating gray level white balance of display apparatus

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Embodiment Construction

[0016] In order to make the purpose of the present invention, shape, structure device feature and its effect easier to further understanding and understanding, the embodiment is given in conjunction with the drawings, and the detailed description is as follows:

[0017] The present invention is based on the concept that in the Grassman color matching law of chromaticity, any color light can be matched with the three primary colors of red, green and blue. Know the chromaticity coordinates of the red, green and blue primary colors in the chromaticity space, such as: select the chromaticity coordinates R(0.64, 0.33), G(0.29, 0.6) and B( 0.15, 0.06), then use Grassman's color matching law to automatically calculate the required mixing ratio when the three primary colors of red, green and blue are mixed into the white displayed on the display; The mixing ratio required when the three primary colors of green and blue are mixed into ideal white at a certain target color temperature; ...

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Abstract

The present invention provides a method for measuring and adjusting gray-step white balance of display automatically, that is to measure the white chroma coordinates and brightness of a display using an apparatus, and selecting the chroma coordinates of the three primary colors of red, green, blue in the known chroma space, to calculate the required mixing proportion of composing the white of the display by red, green, blue, according to Grassman's Low of Color Mixture; at the same time, to calculate the required mixing proportion of composing ideal white from the red, green, blue under some objective color temperature; to compare the two mixing proportion, and to take one proportion as one group plus value of the three primary colors of red, green, blue of the display to solve the problem of wasting time as well as manpower by the traditional adjusting gray-step white balance, and avoiding the artificial error due to adjusting manually.

Description

technical field [0001] The invention relates to a method for adjusting the gray-scale white balance of a display, especially a method for automatically measuring and adjusting the gray-scale white balance of a display, so that the display can show the best color performance and effectively solve the traditional manual The waste of man-hours and human errors caused by adjusting the grayscale white balance. Background technique [0002] In the production process of displays (such as: Plasma Display Panel (PDP for short) and Liquid Crystal Display (LCD for short), etc.), the uniformity of the red, green and blue primary color emission ratios is generally difficult to achieve. As a result, the industry cannot ensure that each monitor can achieve the best color performance when it leaves the factory, even for monitors of the same brand, the same batch of production, and the same process. Therefore, after the display is assembled, the industry generally will Before shipment, adju...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N9/73
Inventor 赵文川余义盛高旭彬
Owner MARKETECH INT
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