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News Releases

May 20, 2013

Japan Display Inc. Announces Development of 5.0-inch Full-HD TFT LCD Module with
Integrated Touch Functionality

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Japan Display Inc. (JDI), a global leader in mobile display technologies, has developed a 5.0-inch Full-HD (1,080 x 1,920 pixels) TFT LCD module with JDI's proprietary integrated touch functionality "Pixel Eyes".

JDI started mass production of a 5.0-inch Full-HD TFT LCD module in October 2012, and introduced an R&D prototype of the 5.0-inch Full-HD "Pixel Eyes" version in the same month as part of JDI's "Innovation Vehicle" lineup1 shown at the FPD International 2012 exhibition in Yokohama, Japan. JDI has now succeeded in establishing "Pixel Eyes" and its touch function controller on a production-ready basis for a new 5.0-inch Full-HD TFT LCD module.

There are various requirements for LCD module performance in the market today, such as higher resolution, wider viewing angle, higher picture quality, lower power consumption, and thinner module thickness. In addition, higher productivity of touch-based devices is becoming more important to cope with wide and rapid fluctuations in smartphone demand. "Pixel Eyes" contributes to high productivity because the touch functionality is formed with fewer process steps compared to conventional touch choices.

"Pixel Eyes" detects touch through changes in capacitance between electrodes on the TFT substrate and on the color filter substrate.

JDI has a "Pixel Eyes" product lineup in mass production, available in resolution formats of 720HD (720 x 1280 pixels) and qHD (540 x 960 pixels).


"JDI's Unique Touch Drive System Ensures a High S/N Ratio"
JDI's unique touch controller drive system realizes a high signal-to-noise (S/N) ratio under various operating environments to ensure touch usability. The unique JDI system configuration synchronizes the LCD driver and the touch controller, and detects the touch event during a period in time outside of the display RGB write period. This realizes a high S/N ratio under various operating environments to ensure touch usability, and also holds promise for other user interfaces, such as input by a passive stylus.

"10 to 30% Slimmer than Previous Modules"
The integration of the touch functionality into the LCD eliminates the need for an external touch panel. The configuration reduces module thickness by approximately 30% versus conventional modules with external touch panels, and by approximately 10% versus recently popular modules which adopt a touch sensor function on the cover lens.

"Clear Picture Quality and High Transmittance"
"Pixel Eyes" does not require an external touch panel, and therefore reduces optical reflections at the component surface boundary interfaces and improves visibility. For the same reason, transmittance is increased by approximately 10% compared to conventional modules with external touch panels, contributing to an increase in module brightness.

"High Productivity"
"Pixel Eyes" requires only one additional process step to add the touch functionality, though other touch methods typically require multiple process steps. JDI is planning to start mass production of "Pixel Eyes" products at the new G6 production line in Mobara, Japan, that goes into operation in June 2013.

We will exhibit this display in Japan Display Inc. booth #520 on May 21 to 23, 2013, during The Society for Information Display (SID) Display Week 2013 international symposium, seminar & exhibition.

Screen size 5.0-inch (12.6cm) (diagonal)
Number of pixels 1,080 (x RGB) x 1,920 (Full-HD)
Resolution density 445ppi
Display mode Transmissive IPS
Viewing angle Vertical/Horizontal 160 degrees
(with contrast ratio > 100:1)     
Dimensions 63.6mm(width) x 115.8mm(height)
Surface luminance 450cd/m2 (Typ.)
NTSC ratio 71%
Contrast ratio 1000:1 (Typ.)
  1. 1 Reference:JDI press release "Japan Display's Advanced Prototypes for Smartphone, Tablet and Automotive Applications", October 18, 2012

and "Pixel Eyes" are trademarks of Japan Display Inc.

Information in the press releases, including product prices and specifications, content of services and contact information, is current on the date of the press announcement, but is subject to change without prior notice.

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