OMRON and FINE OPTO Tama display the new LED backlight

Japan's OMRON FINE and Tama OPTO exhibited only 25mm thickness of direct type LED backlight. The backlight is an improved version of the FLATLED (red), G (green), B (blue) LED package as a light source component in a grid configuration with more than one R configuration. It is characterized by a variety of colors within the various components of the LED light generated a certain degree of color mixing, so you can shorten the distance of the LCD panel. On the FPD International 2004 on the display of thick 30mm backlight, has aroused the concern of all parties. Another feature of this kind of back light is that it is easy to realize the partial control of the local lighting (Area Control)".

The display is 32 inches back light, brightness of 11000cd/m2, power consumption of 150W. Color range of NTSC is more than 100%. About 300 x 22mm x 22mm x 6mm light source components. Each light source element has 5 LED, in which the red LED is 1, green LED and blue LED each of the 2.

The reason why it is possible to achieve ultra-thin, because the further spread of light emitted by the light source components. As a result, "even if the liquid crystal panel and the backlight is closer to the point, it is not easy to see each grid configuration of the light source component of the light spot" (OMRON commentator). It is reported that, in order to make the light diffusion, in the upper part of the LED to install the diffusion resin, and the element has a mirror into a white resin, further improve the degree of light diffusion.

The light source element diffusion through the emitted light, back light spot and stain "reached a practical level" (OMRON Guide), such as bright spot, in the plane of the brightest and darkest parts of the brightness difference control in less than 10%.

FINE OPTO said OMRON and Tama will consider sample delivery, 25mm backlight.