January 10, 2025

High-power LED is expected to introduce LCD TV backlight module in 2012


As the design is simplified and the LED usage is reduced, the power and brightness of the LED will also increase. By 2012, high-power LEDs are expected to be used in LCD TV backlight modules.


A foreign market research institute expects that the global LED-backlit LCD TV shipment penetration rate will reach 18% in 2010. In 2011, the LED-backlit LCD TV penetration rate is estimated to reach 43%, and in 2012 it will exceed 60%. At present, the LED backlight structure of the LCD TV is designed to be the mainstream of the light-emitting side of the upper and lower sides. It is expected that the left and right sides will be illuminated or the lower side will be mainly illuminated in 2011. With the simplified design and reduced LED usage, the LED Both power and brightness will also increase.


According to relevant sources of the agency, in 2012, if there is a backlight design that uses only one side of the left side and uses one LED strip, the LED used at that time will be a high power LED. As far as the LCD TV project is concerned, currently in the LED backlight structure, it is mainly divided into a side light design and a direct design. According to relevant predictions, the proportion of LED backlight modules with side-light design in 2010 was about 92%, and that of direct-type design models was about 8%. However, by 2011, the proportion of the side-light design will be reduced to 90%, and the direct-down ratio will be increased to 10%; in 2012, the proportion of the side-light design is estimated to be 86%, and the direct-down ratio is estimated to be 14%. .


It is understood that in 2009, the LCD TV side-lit LED backlight design structure is based on 4 side illumination, a total of 6 LED strips, the LED specifications (each) used 0.4 watts, brightness less than 24 lumens. In 2010, it developed into a structure with four LED strips on the upper and lower sides. The LED power used was still 0.4 watts and the brightness was 24-30 lumens. In order to continuously reduce the backlight design, TV brands and system manufacturers, and panel manufacturers are still developing new backlight design structures. It is expected that by 2011, it will be developed to use two LED strips for illumination on the left and right sides, or a backlight design with only two LEDs. As the amount of LEDs is reduced, the LED power used is amplified to 0.6 watts and the brightness is increased to 56-62 lumens.


The agency also predicted that in 2012, the industry may have a backlight design that uses only one side of the light and only one LED strip. The LEDs used in the TV backlight module may be dominated by high-power LEDs. It is understood that the current high-power LED on the market, the power is at least more than 1 watt, and the brightness is more than 100 lumens.

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