Benchmark brightness obtaining method, point-to-point correction system and correction method

A point-by-point correction and brightness technology, applied to instruments, static indicators, etc., can solve problems such as large selection experience components and screen brightness loss, and achieve the effect of avoiding brightness loss, accurate and reliable selection, and high correction accuracy.
CN101650908AActive Publication Date: 2010-02-17盐城市盐南高新区都市产业发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
盐城市盐南高新区都市产业发展有限公司
Publication Date
2010-02-17

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Abstract

The invention discloses a benchmark brightness obtaining method which comprises the following steps: A1. using preset brightness to brighten a screen to be measured; A2. acquiring the current image data of the screen to be measured; A3. judging whether the image data is supersaturated or not, if supersaturated, executing step A4, if not, obtaining the benchmark brightness by dividing coefficient Xby the current brightness of the screen, wherein the coefficient X is more than or equal to 2 and less than or equal to 5; A4. reducing the screen brightness; and then, repeating steps A2 and A3. Theinvention also discloses point-to-point correction system and method; benchmark brightness data is adopted for point correction, thereby avoiding the unnecessary brightness loss and improving the correction precision.
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Description

technical field

[0001] The present invention relates to the field of LED display calibration, in particular to a method for obtaining a reference brightness and a system and method for point-by-point correction using the reference brightness. Background technique

[0002] The LED display screen is composed of several unit modules, and the module is composed of several LED lamp points. Due to the uneven distribution of the light point angle, the brightness difference of the light point itself, the temperature attenuation difference of the light point, and the difference in the installation angle, height, position of the module and many other factors will cause the brightness of the LED light to be uneven, which will eventually lead to uneven display on the LED screen. Uniform, poor visual effect.

[0003] In order to make the screen display uniform and the effect is good, it is necessary to adjust the brightness of the screen from uneven to uniform. In the calibration proces...

Claims

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