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A LED point-by-point brightness and chromaticity correction method and system

A correction method and technology for a correction system, applied to static indicators, instruments, etc., can solve the problems of inability to adjust brightness and chromaticity in full screen, unable to perform brightness correction and chromaticity correction at the same time, etc., and achieve the effect of flexible correction methods.

Active Publication Date: 2018-11-13
深圳市灵星雨科技开发有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: 1. The existing technology cannot perform brightness correction and chromaticity correction at the same time; 2. When a chromaticity problem occurs in a cabinet, the existing technology cannot solve it; 3. For the full screen, the brightness and chromaticity adjustment of the designated area cannot be performed

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  • A LED point-by-point brightness and chromaticity correction method and system

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the description of the accompanying drawings. It should be understood that the following is only an introduction to specific implementation methods of the present invention, and is not intended to limit the scope of protection of the present invention.

[0018] An LED point-by-point brightness and chromaticity correction system provided by the present invention, such as figure 1 As shown, it includes an LED display screen, a data acquisition module, a data processing module, and a display screen control system. The data acquisition module includes a camera and a light gun. The camera collects Canon 70D for collecting raw data. The LED display screen and the display screen The control system is connected, and the data processing module calculates the corrected correction data from the collected raw data, and transmits it to the display control system through the local area network to correct the L...

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Abstract

The invention provides an LED point-by-point brightness color scale correcting method. The LED point-by-point brightness color scale correcting method comprises the following steps that firstly, the brightness information of all lamp beads on a display screen is collected in a portioned mode or a full-screen mode with a camera, and the red, green and blue brightness compensation coefficients of all the lamp beads are calculated to reach the consistency of brightness; secondly, color coordinates of red, green and blue components of different areas of color scales are printed out with a light gun, a common color gamut of the areas is worked out, and a color scale compensation coefficient matrix needed by the common color gamut is obtained according to the areas; thirdly, the brightness compensation coefficients measured by the camera and the color scale compensation coefficient matrix worked out with the color coordinates printed out by a colorimeter are combined to work out color scale compensation coefficients of all the lamp beads, and a LED point-by-point brightness color scale correcting system is provided. The LED point-by-point brightness color scale correcting method is short in measuring time, low in cost and good in correcting effect.

Description

technical field [0001] The invention belongs to the field of LED display screen correction, and in particular relates to a point-by-point brightness and chromaticity correction method and system for LEDs. Background technique [0002] In the LED display industry, the inconsistency of brightness and chromaticity of LED full-color displays is a difficult problem for Yida in this industry. LED display point-by-point correction technology is an emerging technology that can significantly improve the uniformity of brightness and chromaticity of the display. technology. For displays composed of different batches, it is necessary to perform chromaticity correction, because the color gamut of different batches will be different, and chromaticity transformation is required to transform the original color gamut space of the display screen into a common target color gamut space , to achieve the same color gamut. [0003] In the latest technology, most of them can only achieve full-scr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 申中华曹福新
Owner 深圳市灵星雨科技开发有限公司
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