Some Sony Vaio models come with Sony's proprietary XBRITE (known as ClearBright in Japan and the Asia-Pacific region) displays. The first model to introduce this feature was the Vaio TR series, which was also the first consumer product to utilize such technology. It is a combination of smooth screen, anti-reflection (AR) coating and high-efficiency lens sheet. Sony claims that the smooth finish provides a sharper screen display, the AR coating prevents external light from scattering when it hits the screen, and the high-efficiency lens sheet provides 1.5 times the brightness improvement over traditional LCD designs. Battery life is also extended through reduced usage of the LCD backlight. The technology was pioneered by Sony engineer Masaaki Nakagawa, who is in charge of the Vaio TR development.