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Color difference problem and solution of LCD splicing screen
Number of views:2544order Release Date:2020-11-26
Firstly, the reasons for color difference in LCD splicing screens

1. The inconsistency in brightness and chromaticity of spliced screens can cause differences in brightness and chromaticity of the image, usually manifested as a particularly bright or dark part of the image, known as mosaic or splash screen phenomenon.

2. On an individual level, the main reason for the occurrence of brightness and color differences is the inherent physical variability of LEDs. Due to manufacturing processes, the photoelectric parameters of each LED cannot be consistent. Even for the same batch, there may be a deviation of 30% to 50% in brightness, and the main wavelength difference is generally up to 5nm.

3. Due to the fact that LEDs are self luminous. And the luminous intensity is proportional to the current supplied to it within a certain range. Therefore, in the process of circuit design, production, installation, and debugging, by controlling the driving current reasonably, the brightness difference can be minimized as much as possible. Calculate based on the average value as the standard value. It should be less than 15% to 20%.

  LCD splicing screen

Second: Solution to Color Difference in LCD Splicing Screen

Color difference is mainly due to the wavelength difference between LEDs, and wavelength is a fixed optical parameter that cannot be changed in the later stage. Therefore, it can be said. Color difference is caused by the differences in optoelectronic and physical properties between individual LEDs. As long as LEDs with sufficiently small differences are used on a display screen, the problem of color difference can be completely solved.

Solution 1: Select LEDs from the same batch. Easy to operate and cost-effective, it can effectively control differences to a large extent, ensure color consistency, and basically meet the practical needs of many LED production enterprises.

Shenzhen Jintong Display Technology Co., Ltd

Address: 4th Floor, Building A, Xinbaoyi Industry and Trade Building, Zhongting North Road, Bao'an District, Shenzhen

Phone: 0755-23576861

Fax: 0755-23573050

After sales service: 18603078925

24-hour sales hotline:

15220233259 / 13923710018

Email: jintong0320@126.com

Solution 2: Conduct spectral color separation screening (often using professional spectral color separation machines). Practice has proven. The screening effect is very good based on this.

Curved LCD splicing screen

The problem and solution of color difference in LCD splicing screens are shared here. Through the above methods, not only has the color difference been effectively controlled. And by sorting the light intensity under the same voltage (or current). Meets the requirement of brightness consistency.


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Address: Building B, Lihao Yongda Technology Park, No.1 Dongfang Avenue, Guangming District, Shenzhen
Phone: 0755-23576861
24-hour service hotline: 139 2371 0018

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