System and method for correcting brightness and chromaticity of LED display screen point by point

A technology for LED display and chromaticity correction, applied in static indicators, instruments, etc., to achieve good color reproduction, improve screen uniformity, and prolong service life.

Active Publication Date: 2010-12-15
XIAN NOVASTAR TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a point-by-point brightness and chromaticity correction s

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  • System and method for correcting brightness and chromaticity of LED display screen point by point
  • System and method for correcting brightness and chromaticity of LED display screen point by point
  • System and method for correcting brightness and chromaticity of LED display screen point by point

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Embodiment Construction

[0043]In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the details of the point-by-point brightness and chromaticity correction system and correction method for LED display screens proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Embodiments, structures, methods, steps, features and effects thereof are described in detail below.

[0044] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, when the technical means and functions adopted by the present invention to achieve the predetermined purpose can be obtained a deeper and more specific understanding, but the accompanying drawi...

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Abstract

The invention discloses a system and a method for correcting brightness and chromaticity of an LED display screen point by point. The method comprises the steps of: (1) connecting a camera, a correcting processor and an LED display screen control system; (2) putting the correcting processor and the camera in the position of 30-50 meters front of the LED display screen, wherein the camera is just opposite to the LED display screen; (3) adjusting the focal length of the camera to a position capable of clearly imaging; (4) setting parameters of a data acquisition module in the correcting processor, wherein the parameters include lamp point intervals, lamp point distribution mode and partition scheme of the LED display screen; (5) starting automatic correction for acquiring brightness and chromaticity data of the LED display screen and calculating and generating point-to-point brightness and chromaticity correcting coefficients; and (6) sending the point-to-point brightness and chromaticity correcting coefficients to an LED display screen control system, and controlling the LED display screen for displaying by the control system according to the received correcting coefficients. The invention ensures the consistence of the lamp points of the LED display screen by carrying out point-to-point brightness and chromaticity correction on the LED display screen, improves the uniformity of the LED display screen, and ensures that the LED display screen has better color reducibility. By carrying out the point-to-point brightness and chromaticity correction on the LED display screen, the service life of the LED display screen body is effectively prolonged.

Description

technical field [0001] The invention relates to the field of LED display screen correction, in particular to a point-by-point brightness and chromaticity correction system and correction method for an LED display screen, which are used for adjusting the brightness and color uniformity of the LED display screen. Background technique [0002] Compared with other display products, LED display has the advantages of clear image, bright color, good stability, high brightness, high light efficiency, long life and low power consumption. In addition, LED display is not limited by space and can be designed according to user requirements The size of the screen can express text, patterns and images. At present, LEDs are developing towards higher brightness, higher weather resistance, higher luminous density, and higher luminous uniformity. Nowadays, both the global LED large screen industry and China's LED large screen industry are in a stage of rapid growth. Especially in recent year...

Claims

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Application Information

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IPC IPC(8): G09G3/00G09G3/32
Inventor 宗靖国袁胜春
Owner XIAN NOVASTAR TECH
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