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System and method for obtaining gamma correction data point-to-point as well as application system thereof

A brightness correction and brightness data technology, applied in photometry, instruments, electrical components, etc., can solve problems such as reduced work efficiency, low accuracy, and reduced calibration accuracy, achieve fast and accurate brightness, and improve collection speed and data. Precision, free from the effects of inaccuracy

Inactive Publication Date: 2008-06-25
SHENZHEN DIANMING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method needs to manually move the luminance meter / brightness meter to align the LED pixels, but the accuracy of manual alignment is low and the speed is very slow, which leads to a reduction in calibration accuracy and greatly reduces work efficiency

Method used

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  • System and method for obtaining gamma correction data point-to-point as well as application system thereof
  • System and method for obtaining gamma correction data point-to-point as well as application system thereof

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Embodiment Construction

[0025] Various preferred embodiments of the present invention will be described in detail below.

[0026] As shown in FIG. 1 , the system for obtaining brightness correction data point by point in the present invention includes a brightness meter 160 , a servo drive device 130 , a central control module 140 , and a storage module 150 . The luminance meter 160 is used to obtain the luminance data of the pixels on the LED display screen 120; the servo driver 130 is used to control the luminance meter 160 to obtain the luminance data of the pixel points point by point; the central control module 140 is used to control the actions of the servo driver 130, At the same time, it receives the luminance data of the pixels obtained by the luminance meter 160 , processes the luminance data, and calculates luminance correction data; the storage module 150 is used for storing the luminance correction data calculated by the central control module 140 . The above-mentioned luminance meter 16...

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Abstract

The invention discloses a system and a method for obtaining brightness correction data point by point and the application system thereof. The system comprises a servo driving devicewhich is used for controlling a brightness meter to obtain the brightness of pixel points point by point; a central control module,which is used for controlling the motion of the servo driving device and receiving the brightness data of the pixel points on a LED display screen obtained by the brightness meter, and through which the brightness data is processed and the brightness correction data is calculated; a memory module, which is used for memorizing the brightness correction data obtained by the central control module. In the invention, the brightness meter is automatically moved through utilizing a two-dimensional servo system, to ensure the central control module to obtain the brightness data and obtain the correction data through calculation , to be provided for a LED driving chip. The invention has the advantages that the trouble and the inaccuracy of the manual operation are avoided, the collection speed and the data precision of the pixel brightness are greatly enhanced, and the invention realizes that the correction data is obtained quickly and accurately and used for adjusting the brightness of the LED display screen.

Description

technical field [0001] The invention relates to the technical field of image display correction, in particular to a method and system for obtaining brightness correction data point by point for LED display. Background technique [0002] Usually, the LED display is composed of hundreds of thousands or millions of semiconductor components LED (ie, light-emitting diodes). Due to the discreteness of the components themselves, it is difficult to achieve high uniformity of the display. However, the point-by-point correction technology can solve the uniformity problem of the display screen, realize the independent adjustment of the brightness of the luminous base color, eliminate various color deviations during display, and ensure the uniformity and consistency of the color and brightness of the entire screen. At present, the more common technology in the industry is: first light up the LED display, then manually move the luminance meter / luminance meter to align with the LED pixel ...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/20G09G5/10H05B33/08H05B33/14H05B37/02G01J1/00H05B44/00
Inventor 黄硕王佐
Owner SHENZHEN DIANMING TECH
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