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| Contact Us |
Shenzhen lishengxin energy co. LTD
Link man: Mr. Zhang
Mobile phone: 15815515926
Q Q: 278901110
Link man: miss tao
Mobile phone: 15118099928
Q Q: 1063926148
Telephone: 0755-29726997
The true: 0755-29726857
Address: Address: Nanhai Guangfa Industrial Park, Guangtian Road, Songgang, Bao'an District, Shenzhen
Web site: http://szlsxny.com/
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| LED digital color screen quality judgment method |
| Date:2017-07-31 |
Count:1326 |
The quality of LED digital color screen can be judged from the following aspects:
1. Out of control point: indoor LED display is less than three-thousandth out of control, and the out-of-control point of outdoor LED display should be no more than three thousandths, and is discrete strong;
2. Consistency: the consistency of LED screen is better, and the brightness of the whole screen should be balanced without obvious color block;
3. Safety: no safety hazard and leakage current should be no more than 3.5 mA for floor leakage current; The experimental voltage of the LED display can be 50Hz and 1500V (ac effective value). At the same time, LED display should have warning signs in fuse and switch power supply.
4. Appearance: no obvious scratches on the outer frame of the LED display. The installation of the outdoor LED screen pixel tube should be consistent without loosening and the shell rupture;
5. Structure: the LED screen can be made of steel, aluminum, wood and other materials, and the structure is strong and beautiful. |
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