News Release: The former Hitachi Displays

February 10, 2011

High-Intensity, High-Definition IPS LCD for Smartphones
- 4.5-inch HD (720 x 1280) High-Intensity IPS LCD Module -

Hitachi Displays, Ltd. (President: Yoshiyuki Imoto, hereafter referred to as Hitachi Displays) has developed a high-intensity, high-definition (720 x 1280) IPS LCD display for smartphones. This display features new technology that achieves a higher aperture ratio for LCD displays and makes more efficient use of backlighting. The result is a solution to the reduced brightness that occurs when designing high-definition displays with superior color reproduction.

With the popularity of smartphones in recent years and the increase in content for high-definition, high-quality mobile devices, such as HD video and photo-quality books, there is a greater need for viewing high-resolution images on clear, bright smartphone displays. In order to fulfill this need, Hitachi Displays has developed a 4.5-inch high-definition (720 x 1280) IPS LCD module for smartphones. This LCD module achieves a high resolution (329 ppi*1) that approaches the limits of the human eye, while also using newly developed technologies for high aperture ratio pixels and improved backlight efficiency in LCD displays to prevent the reduced brightness that occurs when designing high-definition displays with superior color reproduction.

In the future, Hitachi Displays will expand its lineup of displays for smartphones, and develop and distribute small and medium-sized LCD displays to fulfill the demands of the market.

This newly developed high-intensity, high-definition IPS LCD display will be on display at SID 2011 held in Los Angeles, California from May 15 to 20.

*1: ppi (pixels per inch)

Primary specifications for high-intensity, high-definition IPS LCD display

11cm (4.5-inch) HD 720 x 1280 high-intensity, high-definition IPS LCD module
Aspect ratio 16:9
Display area 55.51mm×98.69mm
Number of pixels 720×RGB×1280
Pixel pitch 0.0257×RGB×0.077mm
Resolution 329ppi
Colors 16.77M
Color reproducibility 70% CIE1931 NTSC ratio
Viewing angle (CR>10) Up/Down/Left/Right 160°
Brightness 500cd/m2
Contrast ratio 1100:1