The Japan Display Paper Power LCD Changes the Game

By: Francesca Castor - Published: Nov 8, 2012 • References: j-display and gizmag
Japan Display has developed a new display technology that replaces the backlight in traditional LCDs. A liquid crystal layer is in between a rear reflective layer and the top "light control layer." Light reflected from the rear electrode is then passed through the liquid crystal layer, which then produces a monochrome image -- the top layer then adds in color. Basically, the end result is a paper-like quality lent to the LCD.

There are two versions of this 7.03-inch display. While the Light Control layer collects light, the reflection rate is not 100 percent. The first version, which is about 768 x 1024 pixels, has a reflection rate of 40 percent, which produces about 5 percent coverage of the NTSC color gamut. The second version, which is 576 x 1024 pixels, has a higher color purity and can cover 36 percent of the color gamut.

The paper-like LCD has a low power consumption of about 3mW when displaying still images. While the company is still working on the high-color gamut issue, the company says it is ready for mass production.