LED electronic display product inquiry letter

Title: LED Electronic Display Product Inquiry Letter Tender No.: MGCGZX-2009-70 Announcement Date: May 1, 2009 Deadline: May 6, 2009 Tendering Agency: Province: Anhui Province - Cangzhou City Content: The government procurement center of Mingguang City, Anhui Province is entrusted by the purchasing unit to purchase LED display screens by means of inquiry and purchase. The relevant matters are explained as follows:

First, matters needing attention

1 The supplier shall make a one-time written quotation (including all expenses such as transportation and miscellaneous charges, installation and commissioning fees) to the Center before 10:00 on May 6, 2009 for the following list of purchased goods and related requirements. Once the quotation is approved by the Center, it is the contract price of the contract. The center determines the winning supplier according to the quality, price and after-sales service. The Center does not charge any fees to suppliers.

2 The supplier may not make a quotation for the inquiry letter of the center, but once the quotation is made, it is irrevocable. Otherwise, the supplier will not participate in all bidding activities of the center within the next year.

3 The “Contract Clause” in the standard text of the bidding documents of the Center and the quotation letter from the signatory will be part of the contractor.

4 The inquiry quotation letter shall be sealed and sent to the government procurement center before the deadline for the specified bid.

5 The Center does not accept alternative bids.

Second, LED display

(1) Overall plan

1, display model: Φ5.0 single green asynchronous graphic screen

2, display size: banner: length 3.528 meters high 1.924 meters area 5.62 ┫

(2) Screen body sovereign parts and specifications

1. Metal structure frame The indoor screen is generally composed of aluminum alloy (angle aluminum or aluminum square tube). It is equipped with various circuit boards such as display boards and switching power supply. The outer frame is made of brown aluminum alloy square tube, named aluminum alloy stainless steel. Or made of sheet metal. The outdoor screen frame is generally made of angle steel or I-beam according to the size of the screen body and the bearing capacity, and the outer frame can be decorated with an aluminum-plastic plate.

2. The display unit is the main part of the display screen and is composed of a luminescent material and a driving circuit. The indoor screen is a unit display board of various specifications, and the outdoor screen is a unit box.

3. Scanning Control Board The function of this board is data buffering, which generates various scanning signals and grayscale control signals.

4. The switching power supply converts 220V AC into various DC power and supplies it to various circuits.

5. The display data generated by the main control unit of the twisted pair transmission cable and various control signals are transmitted to the screen by the twisted pair cable.

6. The main controller buffers the input RGB digital video signal, converts the gray scale, reorganizes, and generates various control signals.

7. In addition to the basic functions of the computer display card, the dedicated display card and multimedia card also output digital RGB signals and lines, field blanking and other signals to the main controller. In addition to the above functions, multimedia can also convert the input analog Video signal into a digital RGB signal (ie, video capture).

8, the computer and its peripherals

9, other information source TV, DVD / VCD machine, camcorder and switching matrix.

(3) Technical parameters

Display type indoor dual primary color display pixel diameter Φ5.0 ┨ double primary color pixel composition 1 red 1 green display brightness 600cd / ┫
The screen viewing distance is 2-30 meters, the best viewing distance is 4-30 meters, and the luminous point spacing is 4.0┨.
Board size 484┨×242┨
Luminous point density 17222 points / ┫
Peak/average power consumption 1500W/┫, 700W/┫
256 levels of gray level red and green (non-linear gray correction)
Contrast greater than 150
Display color 65536 color II red, green each 256 levels display mode 1280 × 1024II 1024 × 768II 800 × 600
±75° around the viewing angle
Drive mode 1/16 dynamic scan screen refresh rate ≥ 120 frames / S
Continuous display is greater than 24 hours, display life is more than 100,000 hours, out of control rate, factory zero display function, no towing, no burr, no jitter, screen temperature -20 °C - +65 °C
Working humidity 20-90% RH
Grounding resistance ≤ 4Ω
Weight 25KG/┫
Operating system DOS/Chinese Windows9x/Me/2000/NT/XP
Text input a variety of Chinese / English font information input keyboard / mouse / color scanner / video recorder and other information editing can edit the text, modify the art and animation effects of moving, scrolling, rotating, zooming, zooming and other functions control platform dedicated control soft , Chinese interface, controllable playback, edit monitoring mode synchronous display (VGA mapping)
Other functions display year, month, day and current time, pictures, images (VCD, DVD)

Third, delivery time, payment method

After receiving the notice of winning the bid, the goods will be signed according to the requirements of the bid-winning notice, and delivered according to the contract and responsible for installation and commissioning. The goods will be accepted and paid for 85% of the contract, and the balance will be paid after 6 months.

4. The supplier shall make a written commitment to the services of the above goods. Company Name: Government Procurement Center of Mingguang City, Anhui Province Contact: Qi Jun Tel: 0550-8132750 E-mail: Fax: Postal Code: 239400 Address: 1st Floor, City Radio and Television Center

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