OLED Module technology and development with echoes, OLED drive also plays an increasingly important role. Not only from the low duty cycle increases to support high duty cycle, and the application of such a control current for each RGB, wider IC operating temperature (-45 to 80 ℃), the internal DC-DC boost, as well as graphics acceleration instruction and some other features.
2013年5月22日星期三
LED backlight technology and traditional CCFL backlight technology comparison TFT Display Module
LED backlight technology leadership
LED as the TFT LCD Misplays backlight, backlight technology compared with conventional, except in the color gamut of advantages, there are many unique advantages, grouped into ten areas:
1) LED backlight for better color gamut. Its color and strong performance in the CCFL backlight, the display color can be an insufficient number of LCD technology has played a good role to make up, color reproduction is good;
2) LED life of up to 100,000 hours. Even 10 hours of continuous use per day, you can spend 27 consecutive years, greatly extending the life of LCD TVs, plasma technology available on the overwhelming advantage;
3) Brightness adjustment range. LED power control is easy to achieve, unlike CCFL brightness of the existence of a minimum threshold. Therefore, whether outdoors or in bright black interior, the user easily adjust the brightness of the display device to the most pleasing to the eye of the state;
4) Perfect moving images. Traditional CCFL lamp flashing light frequency is low, the performance of dynamic scenes may generate screen beating. LED backlighting can flexibly adjust the luminous frequency, and the frequency is much higher than CCFL, thus perfectly rendered motion picture; Character LCD Modules
5) Real Color Management. Since RGB three-color light independently, it is easy to control the current display accurate color characteristics;
6) You can adjust the backlight white balance, while ensuring the overall contrast. When the user's computer and video source switching between DVD player, you can easily adjust the white balance between 9600K and 6500K, but without sacrificing brightness and contrast;
7) for large-size screen provides continuous planar array light source. LED is a planar light source, the light emitting unit is a basic side length of 3 ~ 5mm square package, together very easily become an established area of the surface light source, with good brightness uniformity, if the backlight of a liquid crystal TV source, the auxiliary optical components can be done very simply, the screen brightness uniformity even better;
8) Safety. LED using a 5 ~ 24V low-voltage power supply, very safe, power module design is quite simple;
9) environmental protection. LED light source produces no radiation, no toxic substances like mercury, can be described as green light;
10) earthquake. Planar structure of the LED has a solid internal structure, seismic performance is excellent.
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