As displays not only get bigger but pack more pixels into each inch, more power is needed to keep them working. Manufacturers are well aware of the conundrum that this poses as customers also want slim devices that can run at least all day long. They have responded with creative solutions to keep power consumption down to the bare minimum. Among these is Pan Display Inc. (JDI)’s WhiteMagic technology which adds a white subpixel to the traditional RGB trio to help improve brightness. It has gone a step further with its latest display, introducing a local dimming backlight technology that can reduce backlight lighting under certain conditions. The technology will first make its way into a 7-inch WQXGA (2560×1600) display offering a resolution density of 431PPI.
“WhiteMagic” has the effect of improving the brightness of the entire screen by adding a White (W) subpixel, and thereby reducing the backlight power consumption. To maximize “WhiteMagic”‘s effects, it is important to analyze and process the input picture image data, and drive the LCD panel and backlight appropriately and efficiently. The new product can control the backlight more efficiently through the combined use of “WhiteMagic” and the local dimming backlight.
JDI claims that the new technology can reduce power consumption by 20% compared to a conventional WhiteMagic panel. JDI has also managed to make the panel 1.16 millimeter thinner by placing the backlight LEDs at the edges of the lightguide plate.
The new 7-inch WQXGA display panel will be on display at SID 2014 which takes place next week. There is no word yet on devices that will use it.
Sources : Japan Display // XperiaBlog