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1¡¢General
a. 256-grey level control; b. Non-linear alignment; c. Gamma alignment; d. Brightness adjustable; e. Static constant-current drive; f. Frame synchrony; g. Network function.
2¡¢Special characteristics
a. Shared pixel; b. Non linear, 8192- grey level control; Two-level Gamma alignment; d. Stepless (continuous) adjustment for brightness; e. High definition video technology; f. Non-destructive transmission of digital video.
3¡¢Workmanship
a.Material control
¡¡ (1)LED dispersing control technology; (2) Array/Color mixture technology;
b.Modularized control
¡¡ (1) Standard ¡°big module¡± structure; (2) Application of positioning cover;
¡¡ (3)LED array techniques; (4) Impact of ¡°big-module¡± structure on temperature adjustment.
c.Design of display case
¡¡ (1) Application of positioning column; (2) Airtight case body;
¡¡ (3)¡°Post-maintenance¡± structure; (4) Application of aero plugs.
d.Screen structure
¡¡ (1)Good flatness; (2)Large viewing angle; (3)High strength; (4)Convenient for long-distance transport.
4¡¢Extendibility
a.High compatibility of software: Easy edition and producing, plentiful of contents displayed, random layout, great changeability.
b.Highly functional network interfaces: Provide a wide range of network interfaces.
c.Multiple input ports for video signals: Can receive standard signals, analog RGB, high definition TV signals, digital video, cable TV signals.
5¡¢Power distribution system
a.Electrifying system (PLC controlled electrifying/double source and mutual-input power distribution); b. Anti-static; c. Lightning protection.
6¡¢Display body
a.Anti-wind; b. Shockproof; c. Waterproof; d. Dampproof; e. Dustproof; f. Anti-oxidation/anticorrosion.
7¡¢Temperature control system
A.Heat dissipating system and anti-high temperature design for display body
a. Reliable drive IC selection; b. Improved workmanship; c. Improved protective devices; d. Cutting-edge protection technology: movable heat dissipating technology, airtight convection heat dissipating, air conditioner type internal heat dissipating.
B.Low temperature protection for display body
Experiment is conducted by employing the ¡°low temperature test chamber ¡± to simulate the weather conditions in northern area so as to test the working performances of optical materials, unit module and drive IC under low temperature. Then the proper parameters for above parts are found out to allow the display body to work normally. The displays have passed the ¡°reliability test under low temperature (-40¡æ) environment¡± held by Quality Surveillance and Inspection Center for General Electronic Components. To quickly raise the temperature of the maintenance space at the back and reach the proper working temperature, a ¡°far infrared heater¡± is set inside the display body to pre-heat the electric elements.
8¡¢Auto monitoring system for environmental parameters
a.Environmental data controlling system especially used for LED displays; b. Host of environmental data controlling system; c. Sensors; d. Adjustment/execution of environmental data; e. Communication interface.
9¡¢Selection of decorative materials.
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