EP0353069A2
Expired / Lapsed
EP
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Transmission liquid crystal display apparatus
Assignee: Toshiba Corp
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Filing: 1989-07-27
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Granted: —
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Expires: 2009-07-27
Abstract
Abstract In a transmission liquid crystal display apparatus, light rays emitted from a light source (11) and reflected from a mirror (12) are collimated by a collimator lens (13) and incident in a liquid cell structure (2, 3, 4) through a polarization layer (6). The light rays emerged from the structure (2, 3, 4) are transmitted through an another polarization layer (7) and diffused by a diffusion layer (8). The diffusion light rays pass through a filter layer (9) to a viewer.
Inventors
- 👤 Masahiko Intellectual Property Division Akiyama
- 👤 Kouji Intellectual Property Division Suzuki
- 👤 Mamoru Intellectual Property Division Tominaga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 20:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133504; G02F1/13356; G02F1/133565; G02F1/1336; G02F1/133602; G02F1/133606; G02F1/133607; G02F2201/00; G02F2201/52
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
135 words
A transmission color display apparatus characterized by comprising: generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) for generating substantially collimated light rays on a certain first plane; shutting means (2, 3, 4, 22, 23, 24, 63, 77), including a plurality of pixel segments, for shutting the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53), each of said plurality of pixel segments selectively permitting transmission of the light rays; diffusing means (7, 44) for slightly diffusing the light rays from said shutting means (2, 3, 4, 22, 23, 24, 63, 77) (3); and color filter means (9, 27) including color filter segments arranged in correspondence with each pixel segment, each of the filter segments transmitting light rays of a specific color of the diffused light rays.
Claim 2
Dependent Claim
135 words
A transmission color display apparatus characterized by comprising: generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) for generating substantially collimated light rays on a certain first plane; shutting means (2, 3, 4, 22, 23, 24, 63, 77), including a plurality of pixel segments, for shutting the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53), each of said plurality of pixel segments selectively permitting transmission of the light rays; diffusing means (7, 44) for slightly diffusing the light rays from said shutting means (2, 3, 4, 22, 23, 24, 63, 77) (3); and color filter means (9, 27) including color filter segments arranged in correspondence with each pixel segment, each of the filter segments transmitting light rays of a specific color of the diffused light rays.
Claim 3
Dependent Claim
76 words
An apparatus according to claim 1, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) includes a light source (11, 32, 42, 52) for emitting light rays, reflecting means (12, 33) for reflecting the light rays from said light source (11, 32, 42, 52), and collimating means (13, 43, 53) for substantially collimating the light rays from said light source (11, 32, 42, 52) and said reflecting means (12, 33).
Claim 4
Dependent Claim
77 words
An apparatus according to claim 1, characterized in that said generating means (32, 33, 52, 53) includes a plurality of light sources (32, 52) for emitting light rays, a plurality of reflecting mirrors (33, 53), arranged in correspondence with said light sources (32, 52), for reflecting the light rays from said light sources (32, 52), and collimating means (13) for substantially collimating the light rays from said light sources (32, 52) and said reflecting mirrors (33, 53).
Claim 5
Dependent Claim
35 words
An apparatus according to claim 1, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) generates substantially collimated light rays on a second plane perpendicular to the first plane.
Claim 6
Dependent Claim
41 words
An apparatus according to claim 1, characterized in that said generating means (52, 53) includes a reflecting mirror (53) having a major axis perpendicular to the first plane, and at least one linear light source (53) extending along the major axis.
Claim 7
Dependent Claim
58 words
An apparatus according to claim 1, characterized by further comprising second diffusing means (14), arranged between said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) and said shutting means (2, 3, 4, 22, 23, 24, 63, 77), for diffusing the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53).
Claim 8
Dependent Claim
37 words
An apparatus according to claim 1, characterized in that said filter means (9, 27, 79) includes black matrix (51, 70), arranged between said color filter segments (9, 27, 76), for preventing the light rays from passing therethrough.
Claim 9
Dependent Claim
25 words
An apparatus according to claim 1, characterized in that said shutting means (2, 3, 4, 22, 23, 24, 63, 77) (3) comprises liquid crystal cells.
Claim 10
Dependent Claim
67 words
A transmission color display apparatus according to claim 1, characterized by further comprising: second filter means (66) including second color filter segments, arranged in correspondence with each pixel segment and located between said shutting means (2, 3, 4, 22, 23, 24, 63, 77) (3) and said diffusing means (69), for selectively transmitting light rays from said shutting means (2, 3, 4, 22, 23, 24, 63, 77) (3).
Claim 11
Dependent Claim
33 words
A transmission color display apparatus according to claim 9, characterized in that each of the second color filter segments (66) has a size different with that of the first color filter segment (9).
Claim 12
Dependent Claim
84 words
An apparatus according to claim 9, characterized in that said shutting means (2, 3, 4, 22, 23, 24, 63, 77) comprises liquid crystal cell structure including liquid crystal cells (3, 23, 63) and a transparent plate (5) having one surface and opposite surface faced to the liquid crystal cells (3), said first filter means (9, 27) being formed on the one surface of the transparent plate (5) and the second filter means (78) being formed on the opposite surface of the transparent plate (5).
Claim 13
Dependent Claim
126 words
A transmission color display apparatus comprising: generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) for generating substantially collimated light rays; shutting means (2, 3, 4, 22, 23, 24, 63, 77) (2, 3, 22, 23, 24, 63, 77) including a plurality of pixel segments, for selectively shutting the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53), each of said pixel segments (3, 23, 63) selectively permitting transmission of the light rays; and filter means (9, 27) including color filter segments, each arranged in correspondence with each pixel segment, each of the filter segments diffusing the light rays from said shutting means (2, 3, 4, 22, 23, 24, 63, 77) and transmitting light rays of a specific color.
Claim 14
Dependent Claim
126 words
A transmission color display apparatus comprising: generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) for generating substantially collimated light rays; shutting means (2, 3, 4, 22, 23, 24, 63, 77) (2, 3, 22, 23, 24, 63, 77) including a plurality of pixel segments, for selectively shutting the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53), each of said pixel segments (3, 23, 63) selectively permitting transmission of the light rays; and filter means (9, 27) including color filter segments, each arranged in correspondence with each pixel segment, each of the filter segments diffusing the light rays from said shutting means (2, 3, 4, 22, 23, 24, 63, 77) and transmitting light rays of a specific color.
Claim 15
Dependent Claim
73 words
An apparatus according to claim 12, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) includes a light source (11, 32, 42, 52) for emitting light rays, reflecting means (12, 33) for reflecting the light rays from said light source (11, 32, 42, 52), and collimating means for substantially collimating the light rays from said light source (11, 32, 42, 52) and said reflecting means (12, 33).
Claim 16
Dependent Claim
80 words
An apparatus according to claim 12, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) includes a plurality of light sources for emitting light rays, a plurality of reflecting mirrors (33, 53), arranged in correspondence with said light sources (32, 53), for reflecting the light rays from said light sources (32, 53), and collimating means (13) for substantially collimating the light rays from said light sources (32, 53) and said reflecting mirrors (33, 53).
Claim 17
Dependent Claim
35 words
An apparatus according to claim 12, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) generates substantially collimated light rays on a second plane perpendicular to the first plane.
Claim 18
Dependent Claim
52 words
An apparatus according to claim 12, characterized in that said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) includes a reflecting mirror (33, 53) having a major axis perpendicular to the first plane, and at least one linear light source (11, 32, 42, 52) extending along the major axis.
Claim 19
Dependent Claim
57 words
An apparatus according to claim 12, further comprising second diffusing means (7, 44), arranged between said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53) and said shutting means (2, 3, 4, 22, 23, 24, 63, 77), for diffusing the light rays from said generating means (11, 12, 13, 32, 33, 42, 43, 52, 53).
Claim 20
Dependent Claim
33 words
An apparatus according to claim 12, characterized in that said filter means (9, 27) includes black matrix (51, 70), arranged between said color filter segments, for preventing the light rays from passing therethrough.
Claim 21
Dependent Claim
24 words
An apparatus according to claim 12, characterized in that said shutting means (2, 3, 4, 22, 23, 24, 63, 77) comprises liquid crystal cells.
Claim 22
Dependent Claim
74 words
A transmission color display apparatus according to claim 12, characterized by further comprising: second filter means (9, 27) including second color filter segments, arranged in correspondence with each pixel segments and located between said first filter means (9, 27) and said shutting means (2, 3, 4, 22, 23, 24, 63, 77), each of the filter segments transmitting light rays of specific color from said shutting means (2, 3, 4, 22, 23, 24, 63, 77).
Claim 23
Dependent Claim
31 words
A transmission color display apparatus according to claim 20, characterized in that each of the second color filter segments has a size different with that of the first color filter segment.
Claim 24
Dependent Claim
83 words
An apparatus according to claim 20, characterized in that said shutting means (2, 3, 4, 22, 23, 24, 63, 77) comprises liquid crystal cell structure including liquid crystal cells (3) and a transparent plate (5) having one surface and opposite surface faced to the liquid crystal cells (3), said first filter means (9, 27) being formed on the one surface of the transparent plate (5) and the second filter means (9, 27) being formed on the opposite surface of the transparent plate (5).
References Cited (Backward Citations)
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