Optimum design of color pixel arrangement for 5-in diagonal TFT-LCD suitable for character and TV images

Author

Takahashi, Seiki ; Kokogawa, Tom ; Niki, Kenichi ; Tobita, Toshio ; Takasago, Hayato

Author_Institution

Mitsubishi Electr. Corp., Hyogo, Japan

Volume

39

Issue

5

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

1115

Lastpage

1121

Abstract

A new GRGB arrangement used for a 5-in TFT-LCD enables the total number of pixels to be decreased to 2/3 of the conventional RGB stripe arrangement. Adopting a signal compensation technique, 15×20 legible characters are displayed. TV display quality for the GRGB arrangement is expected to remain similar to that for the RGB stripe arrangement. A normalization method which is effective for comparisons of different LCTVs is proposed. It is concluded that, when the values of pixel pitch ratio vertical to horizontal are nearly 1/3, 1/2, and 1, the optimum color pixel arrangements are the RGB, GRGB, and RGB delta arrangements, respectively

Keywords

liquid crystal displays; television equipment; thin film transistors; 5 in; 5-in diagonal; GRGB arrangement; Japanese characters; LCTVs; TFT-LCD; TV display quality; TV images; color pixel arrangements; legible characters; normalization method; pixel pitch ratio vertical to horizontal; signal compensation technique; total number of pixels; Apertures; Cathode ray tubes; Costs; Electrodes; Fabrication; Liquid crystal displays; Pixel; Production; TV; Thin film transistors;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.129091

Filename

129091