Title :
A 1.9 M-pixel poly-Si TFT-LCD for HD and computer-data projectors
Author :
Sato, Hikaru ; Nakamura, Hajime ; Masuda, Y. ; Nakazono, T. ; Kobayashi, Masato ; Mori, Kazuo ; Harada, Nobohiro
Author_Institution :
Display Device Eng. Lab., Toshiba Corp.
fDate :
11/1/1995 12:00:00 AM
Abstract :
A 3.3-inch 1.9 M-pixel poly-Si TFT-LCD for high-definition and computer-data projectors has been developed. This LCD is able to display both full-band HD signals and computer data. This unique applicability is realized by adapting novel CMOS decoder circuits integrated on the substrate. By arranging these decoder circuits on both sides of the panel, effective redundancy is also realized. An oxidation thinning process and a low-resistance tungsten-polycide gate electrode are used in fabricating the poly-Si TFTs, and n-channel MOS-TFT mobility of 160 cm2/Vs was realized. A horizontal resolution of 1000 TV lines mid a contrast ratio of 200:1 is achieved
Keywords :
CMOS digital integrated circuits; decoding; high definition television; liquid crystal displays; optical projectors; thin film transistors; 1.9 Mpixel; 3.3 inch; CMOS decoder integrated circuits; HDTV; Si; computer-data projectors; contrast ratio; full-band HD signals; high-definition projectors; horizontal resolution; low-resistance tungsten-polycide gate electrode; n-channel MOS-TFT mobility; oxidation thinning process; poly-Si TFT-LCD; redundancy; substrate; Circuits; Computer displays; Decoding; Electrodes; HDTV; High definition video; Leakage current; Liquid crystal displays; Optical polarization; Oxidation;
Journal_Title :
Consumer Electronics, IEEE Transactions on
