有機ELディスプレイ -開発の現状と今後の課題- [in Japanese] Organic Electroluminscent Display -The Present Status in its Development and some Problems to be solved in the Future- [in Japanese]
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An Organic EL display is an emissive type and it provides wide viewing angle, high contrast ratio and quick response time. We have developed a monochrome green dot-matrix type display using Organic EL devices. A pixel number of 256×64 with pixel size of 0.34mm×0.30mm, a luminance of 100cd/m<sup>2</sup> and a contrast ratio of 100:1 or over have been achieved. The display consists of a passive matrix and is driven by constant current. The driving duty ratio is 1/64 and the frame rate is 150Hz. Custom IC's having 64 pins have been developed and they were bonded on the flexible tape (TCP: Tape Carrier Package). The display module is made compact by using the TCP. The next issues yet to be solved for the Organic EL display are to develop a full color display and a lager screen size. A few methods are proposed as to how to realize a full color display.
- Bulletin of the Technical Association of Graphic Arts of Japan
Bulletin of the Technical Association of Graphic Arts of Japan 34(4), 243-247, 1997-07-31
The Japanese Society of Printing Science and Technology