According to the calculation of color temperature and brightness , the design of the red LED current 23mA, green 55mA, blue 40mA. Each unit separately driven , the constant current drive mode , the driver chip from Texas Instruments (T1) of the TLC5941.
3 it can be seen from the schematic diagram , the power supply circuit to provide power while TCL5941 chip to the LED lamps provide lighting voltage . TCL5941 control signal to provide a control signal , TCL5941 according to the received control signals required to control the brightness of the LED .
The test results can be seen, the central brightness of 11,230 nits, uniformity up to 90%, in particular 96.26%
Reduction of up to 128% more than the surface of the LCD screen color film restrictions LCD module color reproduction only 10O ~ 105% or so, in order to further improve the color performance, one can choose the matching color film, and the other aspect is to use LED as a light source image shows the final total, in addition, based on the principle of field sequential color no color film technology is also one of the ways. LED Bulb
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