Rear projection to achieve self breakthrough, LED technology to lead the future

The domestic market wall projection mosaic products have occupied the mainstream position. With products, markets, channels and customer recognition on the huge maturity, back projection splicing wall products occupy more than 80% share of the domestic TV wall market. However, in recent years, with the rise of liquid crystal splicing technology, DLP technology and LCOS technology led rear projection splicing industry began to face the danger of being eliminated.

In June 2009 25 to 27, the eighth session of the international China large screen system integrated exhibition Beijing National Agricultural Exhibition held (hereinafter referred to as the big screen show), rear wall splicing industry has shown the development trend of technology progress on a liquid crystal splicing wall pressure of market competition. Among them, the application of a new type of LED light source will be a complete change in the DLP rear projection display products such as the new version of the LCD panel splicing products, the weak technology".

Large screen show, including the use of LED light source of back projection optical engine and rear projection machine have appeared, the excellent display effect to the rear projection display unit of traditional light source products can not be compared. As the future development direction of the light source, LED light source has the advantages of energy saving, low power consumption, low heat, high color saturation, color gamut width and long life, by the general lighting and light field in favor of reality.

Present liquid crystal display main reason wall products can be deeply concerned that the low overall cost has a bright picture effect high brightness contrast LCD technology and long service life of the light source. Rear projection display wall products using traditional light sources, it is difficult to avoid the use of light bulbs to replace the huge cost. The cost of a bulb thousands of dollars, has become the largest cost of rear projection splicing wall. At the same time, the need for continuous replacement of conventional light source also led to the entire display system requires constant re commissioning of the application costs.

And DLP or LCOS technology using LED light can get up to twenty thousand or even one hundred thousand hours of light source life, almost do no need to replace the light source. At the same time, LED excellent color display capabilities will completely change the projection display products, bring quality performance more excellent, its color and contrast performance can be comparable to other new LCD flat panel display technology. At the same time, if the application is the RGB LED light source, DLP splicing unit can also reduce the noise generated by the color wheel and energy waste, affect the whole life of the components, further improve the overall quality of rear wall splicing products.

LED light source as a pure digital light source technology, but also for the DLP display wall bring more excellent picture of adjustable. The important application index of tiled display wall is to keep the consistency of the basic technical indexes such as color, brightness and contrast. Traditional light source products will be different in the brightness of the color temperature of the deviation, the effect of the adjustment of the overall effect of the TV wall uniformity. LED as a pure digital technology of the light source products, can completely adjust the display effect with digital technology, but also has a good performance under different light source performance indicators. The use of LED light source, will be DLP and other rear projection display wall products in the consistency of the performance of the test to be further strengthened.

Projection display wall in stitching seams has bigger technology extreme level, the minimum can achieve almost no one millimeter seam. The liquid crystal technology in the progress of the index is still not optimistic. With the LED light source for projection mosaic late supplies and maintenance cost problems thoroughly overcome, rear projection display wall industry will again burst out strong vitality, continue to maintain their own display wall industry mainstream technology market position.