Patent US5920850A successfully refreshed from Google Patents.
EP0638832A2
Expired / Lapsed
EP
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Liquid crystal display apparatus
Assignee: Canon Inc
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Filing: 1994-08-09
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Granted: —
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Expires: 2014-08-09
Abstract
Abstract A liquid crystal display apparatus is constituted by: a housing; a liquid crystal panel comprising a liquid crystal disposed between a pair of substrates each provided with electrodes, the liquid crystal panel being affixed to the housing; and a backlight for illuminating the liquid crystal panel, detachably affixed to the housing. A light-transmissive plate, such as a diffusion plate, allowing transmission of light from the backlight is further disposed between the liquid crystal panel and the backlight so as to define an almost closed first space in cooperation with the liquid crystal panel, whereby the first space retaina its almost closed state even when the backlight is detached from the housing.
Inventors
- 👤 Makoto C/O Canon Kabushiki Kaisha Uehara
- 👤 Hidetarou C/O Canon Kabushiki Kaisha Tsuchiya
- 👤 Hisao C/O Canon Kabushiki Kaisha Tajima
- 👤 Hiroyuki C/O Canon Kabushiki Kaisha Yokomizo
- 👤 Hiroshi C/O Canon Kabushiki Kaisha Takabayashi
- 👤 Shigeki C/O Canon Kabushiki Kaisha Yabu
- 👤 Toshiaki C/O Canon Kabushiki Kaisha Itazawa
- 👤 Mitsuo C/O Canon Kabushiki Kaisha Iwayama
- 👤 Yoshihiro C/O Canon Kabushiki Kaisha Onitsuka
- 👤 Yasushi C/O Canon Kabushiki Kaisha Shioya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:38
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; G02F1/1335; G02F1/1336; G02F1/133602; G02F1/133604; G02F2201/00; G02F2201/50; G02F2201/503
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
101 words
A liquid crystal display apparatus, comprising: a housing, a liquid crystal panel comprising a liquid crystal disposed between a pair of substrates each provided with electrodes, the liquid crystal panel being affixed to the housing, a backlight for illuminating the liquid crystal panel, detachably affixed to the housing, and a light-transmissive plate allowing transmission of light from the backlight, disposed between the liquid crystal panel and the backlight so as to define an almost closed first space in cooperation with the liquid crystal panel, the first space retaining its almost closed state even when the backlight is detached from the housing.
Claim 2
Dependent Claim
39 words
An apparatus according to Claim 1, wherein the liquid crystal panel and the housing in combination define an almost closed second space, so that the first space and the second space are disposed to sandwich the liquid crystal panel.
Claim 3
Dependent Claim
21 words
An apparatus according to Claim 2, wherein a part of the housing opposing the liquid crystal panel is formed of glass.
Claim 4
Dependent Claim
24 words
An apparatus according to Claim 2, wherein an elastic member is disposed between the liquid crystal panel and the housing within the second space.
Claim 5
Independent Claim
19 words
An apparatus according to any of Claims 1 - 4, wherein the liquid crystal is a ferroelectric liquid crystal.
Claim 6
Dependent Claim
93 words
A liquid crystal display apparatus, comprising: a liquid crystal panel comprising a liquid crystal disposed between a pair of substrates each provided with electrodes, a backlight for illuminating the liquid crystal panel, a diffusion plate disposed between the backlight and the liquid crystal panel for diffusing light from the backlight, and a housing supporting the liquid crystal panel, the backlight and the diffusion plate, wherein the diffusion plate is disposed in the vicinity of the liquid crystal panel so as to define an almost closed space in combination with the liquid crystal panel.
Claim 7
Dependent Claim
86 words
An apparatus according to Claim 6, wherein a supporting member having an opening is supported via an elastic member by the housing in the form of being hanged in space, the liquid crystal panel is affixed to the supporting member so as to cover one side of the opening, the diffusion plate is affixed to the supporting member so as to cover another side of the opening, and the liquid crystal panel, the supporting member and the diffusion plate in combination define said almost closed space.
Claim 8
Dependent Claim
93 words
A liquid crystal display apparatus, comprising: a liquid crystal panel comprising a liquid crystal disposed between a pair of substrates each provided with electrodes, a housing disposed to house the liquid crystal panel and equipped with a transparent portion so as to allow observation of the liquid crystal panel therethrough, the transparent portion and the liquid crystal panel confronting each other with a prescribed distance therebetween, wherein a nontransparent elastic member is disposed between the housing and the liquid crystal panel so as to surround a display region of the liquid crystal panel.
Claim 9
Dependent Claim
24 words
An apparatus according to Claim 8, wherein the elastic member is disposed between the transparent portion of the housing and the liquid crystal panel.
Claim 10
Dependent Claim
46 words
An information transmission apparatus, comprising: a graphic controller for outputting a data signal and a scanning scheme signal, a scanning signal control circuit for outputting scanning line address data and a scanning scheme signal, and a liquid crystal display apparatus according to Claim 8 or 9.
Claim 11
Dependent Claim
64 words
A ferroelectric liquid crystal display apparatus, comprising: a liquid crystal cell comprising a ferroelectric liquid crystal disposed between a pair of substrates each provided with electrodes, a cell-supporting member for supporting the cell, a fixing frame for supporting the cell-supporting member, and a spring member disposed between the fixing frame and the cell-supporting member for hanging the cell-supporting member and the cell in space.
Claim 12
Dependent Claim
21 words
An apparatus according to Claim 11, wherein said spring member comprises a metallic bar formed in a coil or a hairpin.
Claim 13
Dependent Claim
21 words
An apparatus according to Claim 11, wherein said spring member comprises a metallic plate formed in a U-shaped or a hairpin.
Claim 14
Dependent Claim
13 words
An apparatus according to Claim 11, wherein said spring member comprises a resin.
Claim 15
Dependent Claim
20 words
An apparatus according to Claim 11, wherein said spring member comprises a composite material of a metal and a resin.
References Cited (Backward Citations)
No citation records indexed.
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