Conference room audio and video system project (including LED display) supplementary file

Title: Conference Room Audio Video System Project (including LED Display) Supplementary Document Tender No.: CSCG-HNZY-GK20090330 Announcement Date: April 7, 2009 Deadline: April 9, 2009 Tendering Agency: Changsha Yuelu Technology Industrial Parks and Cities: Hunan Province - Changsha City Contents: Tender No.: CSCG-HNZY-GK20090330 Bidders: 1. Conference Room Audio Video System Project Bidding Documents Chapter 3 Standard Products List 5, Outdoor LED Screen No. 1 Outdoor The reference technical parameters of the P16 screen are supplemented as follows: Outdoor virtual pixel full color screen: 1. High luminous brightness, and adjustable from software to hardware, can fully meet the needs and changes of customers' various application environments; 2. Luminous uniformity Good, has very good luminous consistency; 3, can do single lamp maintenance, relatively low maintenance cost, easy to maintain, fundamentally solve the problem of high maintenance cost of full color screen; 4, using a fully sealed box structure , unique process treatment, with good waterproof, shockproof, dustproof and other series of protective functions to maintain its long-lasting excellent display; 5, large viewing angle, horizontal view No. Item Name Reference Technical Parameters and Indicators

LED tube parameters

Model wavelength (typical)
Brightness (typical)
Remarks

1 Red tube Taiwan Guanglei
625nm
450mcd
The specific parameters are related to the lighted lamp
2 Green Tube Lan Ming Ming
525nm
1800mcd

3 Blue Tube Shilan Mingxin
470nm
350mcd

Pixel
1 pixel pitch 16mm
2 pixels composed of 2R+1G+1B
3 pixel density 3906 pixels / m2
4 pixel white balance brightness value 5500mcd
Using frame-type independent pixels, the design of the pixel brim meets the requirements 1, shielding the external light; 2, providing physical protection to the surface of the display panel.
Module
1 module size 256mm × 128mm
2 pixels 16 (column) × 8 (row) = 128 pixel box
1 Box size 1024mm × 768mm
2 pixels 64 (column) × 48 (row) = 3072 pixels
3 peak power consumption 1KW
4 weight 70KG
5 The surface of the material spray plastic iron box can prevent static electricity and acid shielding electromagnetic interference.
screen
1 box composition 3 (column) × 7 (row) = 21 (pieces)
2 display size 3.328m × 5.376m
3 screen area 17.891m2
4 rows and columns 208 columns × 336 rows
5 total pixel points 69888 pixels
6 screen density 3906 pixels / m2
7 White balance brightness ≥ 7000cd/m2
8 Brightness adjustment Automatic/manual multi-level brightness adjustment or continuous adjustment according to ambient brightness.
9 screen temperature rise ≤ 10 ° C
10 average power consumption of the entire screen 12KW
11 full screen peak power consumption 21KW
12 screen weight 1500kg
System indicator
1 screen horizontal viewing angle ≥ ± 55 °
2 The vertical angle of view of the screen is ≥20°; the lower angle of view is ≥25°
3 best line of sight 20-250 meters
4 gradation level point by point each primary color 256 levels of gray, with gamma correction
5 gray scale correction 2 pole nonlinear gray scale correction, 8 calibration curves of red, green and blue
6 contrast is greater than 150:1
7 Image adjustment white balance / contrast / tone adjustment / single point brightness adjustment
8 image processing image has noise reduction / enhancement / motion compensation / color coordinate transformation processing / passivation processing
9 drive mode point-to-point static latch, Constant Current source drive, duty cycle graying, no scan or shared drive
10 display color 16777216 colors
11 Brightness uniformity When the whole screen is the brightest, the lowest pixel brightness / the highest pixel brightness is 0.90
12 frame change frequency is not less than 60Hz
13 refresh rate is greater than 240 Hz
14 Control mode adopts computer network control, the screen is synchronized with the control machine display, video synchronization, real-time display.
15 Display interface VGA/VIDEO/S- VIDEO/COMPOSITE
16 software interface standard computer network interface compatible with windows2003/XP/NT, UNIX, NOVELL, etc.
17 display mode 24-bit true color, VGA, SVGA, XGA, SXGA mode
18 continuous working hours greater than 72 hours
19 screen life > 100,000 hours
20 system life > 100,000 hours
21 trouble-free working time > 10,000 hours (pixel tube life is more than 100,000 hours)
22 discrete out of control points <1/10000
23 consecutive out of control points
24 blind spot rate <3/10000
25 Protection level is not less than IP65 protection level
26 screen box flatness error is less than 1mm
27 pixel pitch error is less than 1mm
28 Protection function is waterproof, moisture proof, salt spray, anti-corrosion, mildew proof, windproof, dustproof, industrial interference, shockproof, flame retardant, anti-electromagnetic interference, lightning protection. With overcurrent, short circuit, open circuit, over voltage, under voltage, lack of equal protection measures. It has protection technologies such as over temperature, overload and power failure.
29 Power Supply requires three-phase five-wire system, graded power-on AC380V±10%, AC220±10%, 50Hz±5%
30 Video input format VGA/PAL/NTSC/SECAM/RGB/YC/YVN
31 Control distance not more than 100 meters (no relay) super five twisted pair network; no more than 500 meters of multimode fiber; no more than 10 kilometers of single mode fiber
32 Three-proof treatment is valid for 10 years
33 wind resistance level 10 or above
34 Environmental requirements Working environment temperature: -20 ° C ~ +60 ° C Working environment humidity: 10% ~ 95%
2. The reference technical parameters of the third chapter of the bidding documents of the audio and video system project of the conference room of Yuesha Science and Technology Industrial Park of Changsha City are as follows: 2. The reference technical parameters of the electronic monogram No. 1 standard screen body are supplemented as follows: Electronic monogram Φ3. 75 indoor single primary color reference technical parameters (1) unit board serial number project indicators
1
Cell board size 304 x152 (mm x mm)
2
Pixel resolution 64 x 32
(2) Display reference indicator 1
Pixels form a single red
2
Graphics resolution 1408X128
3
Effective display size 6.69 m × 0.61 m = 4.08┫
4
Brightness uniformity, the brightness deviation of the whole screen does not exceed 5%
5
Pixel point density 44000 / square meter
6
Angle of view (angle) level ≥150°, vertical ≥60°
7
The best viewing distance is 3 meters - 50 meters
8
Scanning method 1/16
9
Display mode offline screen
10
Luminous tube life > 100,000 hours
11
Screen life > 10 years
12
Mean time between failures > 8000 hours
13
Pixel point out of control rate ≤ one ten thousandth
14
Continuous working time >100 hours
15
The whole screen is out of control
16
Flatness ±1mm
17
Unit plate seam error ≤ 1mm
18
Maximum power consumption of 400 watts / square meter
19
Average power consumption of 120 watts / square meter
20
Working environment temperature -10 °C ~ +55 °C
twenty one
Working environment relative humidity 10% ~ 95% RH
twenty two
Control distance is greater than 120 meters (no relay)
twenty three
Point spacing 4.75 mm
3. As the purchaser's technology building is under construction, the bidder is required to take the site before the bidding. The relevant expenses are self-care and the accident occurred during the survey. Company Name: Hunan Zhongyu Tendering Co., Ltd. Contact: Zhou Ding, Li Juan, He Wei Tel: 0731-5561495, 5561661 E-mail: Fax: 0731-5561495 Postcode: 410008 Address: No. 203, Section 1, Furong Middle Road, Changsha City Room 1601-1602, Shuanghe Pharmaceutical Building, Hunan

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