Tomohiro Murakoso

34.1: Invited Paper: Development of World's Largest (150-in. Diagonal) Advanced High Definition PDP

This advanced high definition flat-panel television display has 4096 × 2160 pixels and can realize good moving picture resolution, good color viewing angle, and crisp beautiful images over the entire screen. The single-panel device is made from a mother glass which could fit nine 50 inch diagonal substrates.

55-inch 8K4K IPS-LCDs with high frame frequency, wide color gamut, and stereovision

An 8K4K-LCD with the diagonal size of 55 inch has been developed. The backplane is based on an amorphous silicon (a-Si) technology and can operate at 120Hz, which is achieved by developing a technology to compensate the charging voltage of pixels. The realization of a high resolution of 8K4K and a high frame frequency of 120Hz is the world first for LCDs with a-Si backplanes. Moreover, a backlight system with laser light sources expands the color gamut. The newly developed LCD covers 99% of color space defined in BT.2020. Additionally, we have established three dimensional 8K4K technology. A 3D polarization filter is attached on the 55-in. 8K4K LCD. The vertical viewing angle of 8K-3D LCD prototype is 8.6 degrees at its optimal viewing position set to 1.2m.

51.2: Invited Paper: Improvement of Luminous Efficiency Using New Structure in AC-PDPs

A new discharge cell structure that has many patterned, reed-shaped ITOs was developed. Use of this structure increases PDP discharge efficiency by 9% and decreases displacement power by 10%. This effect is the same as that of using a lower electric permittivity material for lower electric capacity.