Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Patent
1996-11-27
2000-06-13
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
349112, 349106, 359 15, G02F 11335, G02B 532
Patent
active
060755792
ABSTRACT:
The invention relates to a liquid crystal display device which enables a visual field range to be made wide and luminance drops to be reduced, so that bright displayed images can be presented, and provides a liquid crystal display device comprising, in order from a side of backlight 11, backlight 11, scatter plate 12, and liquid crystal element 20, wherein a transmission type of hologram scatter plate 13 is located in front of a display surface of liquid crystal display element 20. Hologram scatter plate 13, because of having been fabricated by means of single-step or two-step exposure, enables light more or less scattered through scatter plate 12 to be limitedly scattered within a given wide visual field range, so that bright displayed images can be presented over a wide visual field range yet with a reduced luminance drop. Scatter plate 12 may be omitted.
REFERENCES:
patent: 4239349 (1980-12-01), Scheffer
patent: 4285029 (1981-08-01), McCoy
patent: 4660936 (1987-04-01), Nosker
patent: 4984872 (1991-01-01), Vick
patent: 5046793 (1991-09-01), Hockley et al.
patent: 5333073 (1994-07-01), Suzuki
patent: 5506701 (1996-04-01), Ichikawa
patent: 5629784 (1997-05-01), Abileah et al.
patent: 5659408 (1997-08-01), Wenyon
patent: 5691790 (1997-11-01), Havens et al.
patent: 5721600 (1998-02-01), Sumiyoshi et al.
patent: 5721630 (1998-02-01), Horner et al.
patent: 5745203 (1998-04-01), Valliath et al.
patent: 5812229 (1998-09-01), Chen et al.
Iriyama Hideyuki
Morii Akio
Ueda Kenji
Chowdhury Tarifur R.
Dai Nippon Printing Co. Ltd.
Sikes William L.
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