The Erdos City Government Procurement Center now supplements the bidding documents for the LED electronic display (bid number: ORDOSCG-G20090031) for the Erdos Culture and Art Center, the Ordos Grand Theatre and the Erdos City Library as follows:
1. The technical parameters of the second package (Cultural Art Center) of the second part of the bidding documents (outdoor and outdoor LED) (all items 7 and 8):
1. LED size is: 24m2, 30m2
2. LED specifications are: 1R1G1B surface mount three-in-one full color screen;
3. Pixel point spacing ≤ 10mm;
4. Pixel density ≥ 10000 points / m2;
5. Brightness ≥ 6000cd/m2;
6. Blind spot rate ≤ 0.0001 (discrete distribution);
7. The driving method uses constant current to drive 1/8 scanning;
8. The angle of view should be 160 degrees horizontally and 120 degrees vertical;
9. Refresh frequency ≥ 360HZ, frame change speed ≥ 60 frames / sec;
10. Use fiber optic transmission;
11. The average time between failures should exceed 8,000 hours and the screen life should exceed 100,000 hours;
12. The screen body should be equipped with moisture-proof, dust-proof, anti-corrosion, anti-static and waterproof devices, and have protection devices for overcurrent, short circuit, overvoltage and undervoltage;
13. The core is made of Huagang Kerui or the same quality die.
Control equipment requirements:
1. It can correct the display points point by point, and correct the color difference between the boxes of the display screen by card;
2. The identification program can identify various scanning methods and various signal directions of various driving boards;
3. Support arbitrarily adjust the gray level within 65536 level (64K) gray scale;
4. Support refresh rate arbitrary setting, and can lock the display refresh rate to an integral multiple of the computer monitor refresh rate;
5. Receive card integration test function, providing multiple test modes;
6. The receiving card support program is upgraded online, that is, the receiving card can be upgraded without being detached from the large screen.
Control software requirements:
1. It can run under WIN98, WIN2000, WINXP and other operating systems;
2. Provide an external program interface;
3. You can adjust the video source chroma, saturation, brightness and contrast;
4. Support background playback, timed playback and multi-window multi-tasking simultaneous playback.
2. In the second package of the second part of the bidding documents, “1, P12 indoor and outdoor universal full-color table stickers (the opera hall stage background full color table stickers screen) technical parameters requirements†(3) pixel spacing ㄑ 12mm, (4) Pixel density is 6944 points / m2
3. The supplementary documents are part of the bidding documents and have the same legal effect as the bidding documents. It is expected that the bidding suppliers will be well known.
Fourth, contact: Shi Junli phone
Wang Hao Telephone
Ordos City Government Procurement Center
April 8, 2009
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