A high image-quality LCD addressed by lateral MIM

Author

Takahashi, Kotoyoshi ; Ushiki, T. ; Sugiyama, J. ; Ushiyama, T. ; Ono, N. ; Araki, T. ; Kaneko, K. ; Aruga, H. ; Oguchi, K.

Author_Institution

Seiko Epson Corp., Nagano, Japan

fYear

1991

fDate

15-17 Oct. 1991

Firstpage

247

Lastpage

250

Abstract

A novel lateral MIM-LCD, (liquid crystal display) has been developed which has a high pixel density (about 270 dpi) and a high contrast ratio over a wide temperature range (over 130:1 from 0 degrees C-80 degrees C). Two types of lateral MIM-LCD are presented: a 4.2-in-diagonal, 640-pixel*240-pixel LCD with each pixel addressed by eight parallel-lateral-MIMs and a 2.98-in-diagonal 640-pixel*480 pixel LCD with each pixel addressed by back-to-back lateral MIM. This lateral MIM can be used for an electric view finder or a light valve because the pixel-size can be designed to be sufficiently small and can attain high aperture ratio. In addition, the redundancy of pixel defects can create high yield ratio when fabricating displays such as the full color workstation display.<>

Keywords

liquid crystal displays; metal-insulator-metal devices; 0 to 80 degC; 153600 pixel; 2.98 inch; 240 pixel; 307200 pixel; 4.2 inch; 480 pixel; 640 pixel; color workstation display; contrast ratio; electric view finder; lateral MIM-LCD; light valve; liquid crystal display; pixel defects; redundancy; yield ratio; Capacitance; Dry etching; Fabrication; Image quality; Insulation; Liquid crystal devices; MIM devices; Resists; Substrates; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Display Research Conference, 1991., Conference Record of the 1991 International

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-0213-3

Type

conf

DOI

10.1109/DISPL.1991.167481

Filename

167481