Toshiba's first demonstration of local control technology of LED backlight

[Nikkei BP news] Toshiba in the 2008 International CES for the first time showed a partial control LCD TV LED backlight technology. The company's technology will be divided into 8 parts of the vertical display, divided into 12 parts, a total of 96 parts, each part of the brightness can be adjusted.

There are two advantages

The company believes that the adoption of the technology has two advantages. First, can reduce power consumption. In general, LCD TV backlight from CCFL into LED, power consumption will increase. The new technology through the display of the black part of the LED to reduce the optical output power, according to the display of the image in different parts of the brightness control methods, compared with the CCFL, can reduce power consumption (commentator). However, because this is the "specific products, can reduce the number of, is not to say" (the narrator).

Another advantage is that it can improve contrast. The contrast can be improved by putting out the LED in the black section. "This is an effective way to improve contrast" (narrator). "Visitors who this is PDP" (the narrator), however, did not disclose the contrast of numerical products.

On the realization of the technical issues faced by the utility, the company referred to the video support. At present, the company's technology only supports pictures. The company said the technology can be solved in 1 to 2 years. Since then, the cost will become a practical obstacle. The reason is that the introduction of this technology will lead to increased manufacturing costs.

Exhibition site. Left for the backlight using CCFL LCD TV, the right for the LED backlight can be locally controlled LCD tv.

Display Board

Source: Technology Online