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Viewing‐angle evaluation method for LCDs with gray‐scale images
Author(s) -
Hirata Junko,
Hisatake Yuzo,
Ishikawa Masahito,
Shoji Masato,
Tanaka Yasuharu,
Hatoh Hitoshi
Publication year - 1993
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1984894
Subject(s) - viewing angle , grayscale , liquid crystal display , computer vision , artificial intelligence , computer science , contrast (vision) , gray (unit) , scale (ratio) , computer graphics (images) , gray level , optics , pixel , physics , cartography , nuclear medicine , geography , medicine , operating system
Abstract— A new evaluation method of viewing‐angle characteristics for liquid‐crystal displays (LCDs) with gray‐scale images has been studied. In this method, reverse images, excessively dark images, and excessively bright images, which are a serious problem while displaying gray‐scale images, are evaluated quantitatively along with the display contrast ratio. The viewing‐angle characteristics of several types of LCDs are compared using this method.