Artificial retina using thin-film photodiodes and thin-film transistors

被引:26
|
作者
Kimura, Mutsumi [1 ]
Shima, Takehiro
Okuyama, Tomoyuki
Utsunomiya, Sumio
Miyazawa, Wakao
Inoue, Satoshi
Shimoda, Tatsuya
机构
[1] Ryukoku Univ, Dept Elect & Informat, Otsu, Shiga 5202194, Japan
[2] Seiko Epson Corp, Technol Platform Res Ctr, Nagano 3990293, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 5B期
关键词
artificial retina; thin-film photodiode; thin-film transistor; in-pixel operation; pixel-to-pixel operation; circuit simulation; edge enhancement;
D O I
10.1143/JJAP.45.4419
中图分类号
O59 [应用物理学];
学科分类号
摘要
An artificial retina using thin-film photodiodes (TFPDs) and thin-film transistors (TFTs) is proposed, which is expected to be suitable for living bodies, low-emitting and cost-effective, and which is an improvement of the system-on-panel devices in which the in-pixel and pixel-to-pixel operations are executed using TFTs. The characteristics of a TFPD and TFTs are measured, and their models are made for a circuit simulator. Circuits of the retina pixel and retina array with some improvements are invented, and it is confirmed using a circuit simulator that the artificial retina using TFPDs and TFTs can operate. Edge enhancement is also confirmed, and its dependence on the characteristic deviations of TFTs is analyzed.
引用
收藏
页码:4419 / 4422
页数:4
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