Samsung at CES in Las Vegas unveiled 4k TVs that use a backlight with quantum dots. This gives new TV models a higher maximum brightness and can display a wider color range.
The new models with quantum dots are called Samsung ‘suhd TVs. Competitor Sony was already using a backlight with quantum dots in the Triluminos models and LG makes some 2015 TVs using this technique.The top model from Samsung, the JS9500, has a curved screen and uses a direct-type LED backlight with local dimming. Samsung did not say how much individual zones the backlight, but was told that it varies by screen size and that there are “hundreds.”
Even the slightly cheaper, and also bent JS9000 model uses quantum dots, but has an edge-lit panel.According to Samsung, almost half of all the company sold TVs with a curved screen and it is expected that the share of curved TVs will continue to grow in 2015. The Korean manufacturer will also be a flat model make UHDTV, the JS8500, with quantum dots and an edge-lit panel, but direct LED with local dimming will only be available on the curved UHDTV programs. The new models will begin shipping in the second quarter.
Televisions with quantum dots to use blue LEDs in the backlight in which red and green light is generated by a portion of the blue light by using a quantum-dot-film to be converted. As a result, the backlight has a more favorable spectrum of colors, resulting in color filters can be used that allow more light. This in turn has a positive effect on the maximum brightness and power consumption of televisions.
Samsung said the TVs will complete with dci, which is used in all digital cinemas, display. Content that makes use of this greater color range is currently not available for cinemas exclusively. Samsung showed however that is working hard on a way for content to do with the larger dci color range available for consumers. How and when this type of content will be available is not yet clear.
Samsung also announced that all 2015 models of its televisions will feature the Tizen open source operating system, which the more expensive models will run on an unnamed octacore-soc. Thanks to two new Evolution kits, one for HD and for older models will be upgraded to 2015 with Tizen OS.