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LED display screen correction system and method

A technology of LED display screen and correction system, applied in static indicators, color signal processing circuits, instruments, etc., can solve problems such as brightness and chromaticity differences

Active Publication Date: 2010-10-20
安徽赛时达显示科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a correction system and method that can solve the problem of differences in brightness and chromaticity that occur in the mixed use of different batches of LED cabinets

Method used

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  • LED display screen correction system and method
  • LED display screen correction system and method

Examples

Experimental program
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Embodiment 1

[0037] Such as figure 2 As shown, the present embodiment provides a LED display calibration system, including: a cabinet parameter acquisition device 10, a data processing device 11 and a control device 12 connected in sequence, and a target connected to the data processing device 11 Parameter input device 14 .

[0038] The box parameter acquiring device 10 is used to acquire the current parameters of the external LED box 13. For example, a light gun, a chromaticity measuring instrument, etc. can be used to directly acquire the current parameters. The so-called current parameters refer to the LED box 13. Parameters and indicators before correction, such as part or all of the three-primary color chromaticity, color coordinates, brightness, color temperature, white field brightness, etc., of course, can also use a camera to obtain the three-primary color photos of the LED cabinet 13, and use computer software to analyze and obtain The above parameters and indicators.

[0039]...

Embodiment 2

[0045] Such as image 3 As shown, on the basis of Embodiment 1, the above-mentioned data processing device 11 can be realized by the following structure, which includes a cabinet parameter acquisition module 111, a target parameter acquisition module 112, an adjustment coefficient calculation module 113 and a download module 114. Body parameter acquisition module 111 is connected with described adjustment coefficient calculation module 112, is used for obtaining the current parameter of described box body, and provides described current parameter to described adjustment coefficient calculation module 113; Described target parameter acquisition module 112 and all The adjustment coefficient calculation module 113 is connected to obtain the target parameter input by the user, and provide the target parameter to the adjustment coefficient calculation module; the adjustment coefficient calculation module 113 is used to use the current parameter and the target parameter , calculatin...

Embodiment 3

[0047] On the basis of Example 2, such as Figure 4 As shown, the data processing device 11 may further include a judgment module 115 and a feedback module 116, the judgment module 115 is connected with the target parameter acquisition module 112 and the box parameter acquisition module 111, and the judgment module 115 is used for Judging whether the target parameter can be realized according to the target parameter and the current parameter, if the judgment result is affirmative, then the brightness loss ratio of the corrected LED cabinet is further calculated by the judgment module, and fed back to the user through the feedback module 116, At the same time, the adjustment coefficient calculation module 113 is instructed to calculate the adjustment coefficient, and if the judgment result is negative, the user is prompted to re-input the target parameter through the feedback module 116, for example, as figure 1 For the small triangle color gamut and the large triangle color ga...

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Abstract

The invention discloses an LED display screen correction system comprising a box body parameter obtaining device, a data processing device, a control device and an LED box body which are sequentially connected, and a target parameter input device connected with the data processing device; the box body parameter obtaining device is used for obtaining the average brightness of an LED box body display area and / or the current parameter of color coordinate parameters; the target parameter input device is used for inputting the target parameter of the LED box body on the demand of a user; the data processing device is used for generating the adjustment coefficient of the LED box body according to the current parameter and the target parameter; the control device is used for receiving and storing the adjustment coefficient, adopting the same adjustment coefficient for brightness and / or color correction for each pixel in the display area according to the adjustment coefficient, obtaining the control data of the LED box body, and controlling the LED box body to display; and through correction, the purposes of consistent brightness and consistent color of all box bodies in different batches are achieved.

Description

technical field [0001] The invention relates to a display screen correction technology, in particular to a brightness and chromaticity correction system of an LED display screen. Background technique [0002] The human eye is very sensitive to differences in brightness and color between regions. Typically, a 4% difference in luminance and a 2nm chromaticity difference between two LED cabinets can make people feel like a mosaic. However, everyone can accept 6% difference in brightness between pixels and 5nm difference in chromaticity. [0003] Any color visible to the human eye can be uniquely represented by a coordinate point (x, y) in the 1931CIExy chromaticity diagram. According to the principle of three primary colors, almost all colors that can be seen by the naked eye can be mixed in different proportions of the "three primary colors". From the properties of the CIExy chromaticity diagram, it can be concluded that any given three light sources cannot cover the color ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32H04N9/64
Inventor 邵寅亮罗瑶伍更新
Owner 安徽赛时达显示科技有限公司
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