Fuji TV for the first time using liquid crystal display backlight for visual optical communication Demonstration

Fuji TV in November 2007 to 22, held in the "International Radio and television equipment exhibition (Inter BEE 2007)" on 2007, the world's first demonstration of the use of liquid crystal display backlight optical communication. Demonstration of the use of LED backlight display. At the same time, the text data is transmitted by the high speed flashing of the backlight, and the PDA data is received and displayed by a light receiving device.

The system developed by NEC. The presentation of the communication technology is based on the Visual Optical Communications Alliance designated visual optical label standard. The flicker frequency is 28.8kHz and the data transmission speed is 4.8kbps.

The feature of the communication technology is that it can transmit specific information only to those who have special needs in front of the TV audience. For example, consider sending information to people with visual disabilities. The difficulty lies in the built-in LED backlight display price SUNCOO. It can be said that this is aimed at the display light source after the realization of LED technology.

Source: Nikkei BP