US5583681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal apparatus and information transmission apparatus
Assignee: Canon Inc
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Filing: 1993-11-12
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Granted: 1996-12-10
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Expires: 2013-11-12
Abstract
Abstract A liquid crystal apparatus includes: a liquid crystal panel, an illumination means for illuminating the liquid crystal panel, a supporting means for supporting the liquid crystal panel and a housing for housing the above members. The liquid crystal panel and the supporting means are arranged so as to define an almost closed space functioning as an air damper to suppress deformation caused by an externally applied force owing to elasticity of air within the almost closed space. The supporting means includes a unit-supporting portion for supporting the illumination means, the unit-supporting portion being provided with a cutout at a part thereof for promoting discharge of heat evolved from the illumination means, and, the illumination means is supported by the unit-supporting portion so as to stop up the cutout of the unit-supporting portion, thus retaining the almost closed space. The liquid crystal apparatus is further provided with means for enhancing discharge of heat evolved by the illumination means out of the apparatus from a side opposite to the liquid crystal panel of the illumination means.
Inventors
- 👤 Yasushi Shioya
- 👤 Hisao Tajima
- 👤 Hiroshi Takabayashi
- 👤 Toshiaki Itazawa
- 👤 Masanori Takahashi
- 👤 Kenji Niibori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:12
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; G02F1/133317; G02F1/1335; G02F1/1336; G02F1/133628; G02F2201/00; G02F2201/36; G02F2201/50; G02F2201/503
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
163 words
A liquid crystal apparatus, comprising: a liquid crystal panel, an illumination means for illuminating the liquid crystal panel, a supporting means for supporting the liquid crystal panel and a housing for housing the liquid crystal panel, the illumination means and the supporting means, the liquid crystal panel and the supporting means being arranged so as to define an almost closed space functioning as an air damper to suppress deformation caused by an externally applied force owing to elasticity of air within the almost closed space, wherein said supporting means is divided into first member and a second member separatable from each other, said first member supporting the liquid crystal panel and drive means for the liquid crystal panel, and said second member being engageable with the first member to aid the securing of the supporting means to the housing, and wherein said second member is connected to a third member supporting the illumination means and secured to the housing via an elastic adhesive.
Claim 2
Dependent Claim
163 words
A liquid crystal apparatus, comprising: a liquid crystal panel, an illumination means for illuminating the liquid crystal panel, a supporting means for supporting the liquid crystal panel and a housing for housing the liquid crystal panel, the illumination means and the supporting means, the liquid crystal panel and the supporting means being arranged so as to define an almost closed space functioning as an air damper to suppress deformation caused by an externally applied force owing to elasticity of air within the almost closed space, wherein said supporting means is divided into first member and a second member separatable from each other, said first member supporting the liquid crystal panel and drive means for the liquid crystal panel, and said second member being engageable with the first member to aid the securing of the supporting means to the housing, and wherein said second member is connected to a third member supporting the illumination means and secured to the housing via an elastic adhesive.
Claim 3
Dependent Claim
240 words
A liquid crystal apparatus, comprising: a liquid crystal panel, an illumination means for illuminating the liquid crystal panel, a supporting means for supporting the liquid crystal panel and a housing for housing the liquid crystal panel, the illumination means and the supporting means, the liquid crystal panel and the supporting means being arranged so as to define an almost closed space functioning as an air damper to suppress deformation caused by an externally applied force owing to elasticity of air within the almost closed space, wherein said supporting means is divided into a first member and a second member separatable from each other, said first member supporting the liquid crystal panel and drive means for the liquid crystal panel, and said second member being engageable with the first member to aid the securing of the supporting means to the housing, wherein said second member is connected to a third member supporting the illumination means and secured to the housing via an elastic adhesive, and wherein said third member is provided with a cutout at a part thereof and the illumination means is supported by the third member so as to stop up the cutout of the third member, thus retaining the almost closed space, the liquid crystal apparatus being further provided with means for enhancing discharge of heat evolved by the illumination means out of the apparatus from a side opposite to the liquid crystal panel of the illumination means.
Claim 4
Dependent Claim
240 words
A liquid crystal apparatus, comprising: a liquid crystal panel, an illumination means for illuminating the liquid crystal panel, a supporting means for supporting the liquid crystal panel and a housing for housing the liquid crystal panel, the illumination means and the supporting means, the liquid crystal panel and the supporting means being arranged so as to define an almost closed space functioning as an air damper to suppress deformation caused by an externally applied force owing to elasticity of air within the almost closed space, wherein said supporting means is divided into a first member and a second member separatable from each other, said first member supporting the liquid crystal panel and drive means for the liquid crystal panel, and said second member being engageable with the first member to aid the securing of the supporting means to the housing, wherein said second member is connected to a third member supporting the illumination means and secured to the housing via an elastic adhesive, and wherein said third member is provided with a cutout at a part thereof and the illumination means is supported by the third member so as to stop up the cutout of the third member, thus retaining the almost closed space, the liquid crystal apparatus being further provided with means for enhancing discharge of heat evolved by the illumination means out of the apparatus from a side opposite to the liquid crystal panel of the illumination means.
Claim 5
Dependent Claim
58 words
An information transmission apparatus, including: a graphic controller for supplying data signals and a scanning scheme signal, a scanning signal control circuit for supplying scanning line address data and a scanning scheme signal, a data signal control circuit for supplying display data and a scanning scheme signal, and a liquid crystal apparatus according to claim 1 or 2.
Claim 6
Dependent Claim
136 words
A liquid crystal display apparatus, comprising: a) a liquid crystal panel; b) a panel-fixing member for supporting the liquid crystal panel; c) a light source disposed behind the liquid crystal panel; d) a supporting member supporting the light source and having an opening on a back side or a front side of the light source; e) a housing accommodating therein the liquid crystal panel, the panel-fixing member, the light source and the supporting member; f) an elastic member bonding the panel-fixing member and the supporting member, so as to form an almost closed space surrounded by the liquid crystal panel, the panel-fixing member and the light source; and g) a plurality of perforations provided in the housing on a back side of the light source at a part corresponding to said opening of the supporting member.
Claim 7
Dependent Claim
136 words
A liquid crystal display apparatus, comprising: a) a liquid crystal panel; b) a panel-fixing member for supporting the liquid crystal panel; c) a light source disposed behind the liquid crystal panel; d) a supporting member supporting the light source and having an opening on a back side or a front side of the light source; e) a housing accommodating therein the liquid crystal panel, the panel-fixing member, the light source and the supporting member; f) an elastic member bonding the panel-fixing member and the supporting member, so as to form an almost closed space surrounded by the liquid crystal panel, the panel-fixing member and the light source; and g) a plurality of perforations provided in the housing on a back side of the light source at a part corresponding to said opening of the supporting member.
Claim 8
Dependent Claim
36 words
A liquid crystal display apparatus according to claim 4, wherein heat discharge fins are disposed on a back side of the light source so as to face the part of the housing provided with the perforations.
Claim 9
Dependent Claim
79 words
A liquid crystal display apparatus, comprising: a) a liquid crystal panel; b) a panel-fixing member for supporting the liquid crystal panel; c) an elastic member bonding the panel-fixing member to a support member movable relative to the support member, said panel-fixing member being composed of a first member connected the liquid crystal panel and second member bonded to the support member via the elastic member, said first member and second member being separably assembled to form said panel-fixing member.
Claim 10
Dependent Claim
79 words
A liquid crystal display apparatus, comprising: a) a liquid crystal panel; b) a panel-fixing member for supporting the liquid crystal panel; c) an elastic member bonding the panel-fixing member to a support member movable relative to the support member, said panel-fixing member being composed of a first member connected the liquid crystal panel and second member bonded to the support member via the elastic member, said first member and second member being separably assembled to form said panel-fixing member.
Claim 11
Dependent Claim
24 words
A liquid crystal display apparatus according to claim 6, wherein said first member has a bent portion on which a drive IC is mounted.
Claim 12
Dependent Claim
36 words
A liquid crystal display apparatus according to claim 6, wherein said support member includes a portion carrying a light source and a housing for accommodating the liquid crystal panel, the panel-fixing member and the light source.
Claim 13
Dependent Claim
30 words
A liquid crystal display apparatus according to claim 6, wherein a drive IC is mounted on said first member and is connected to the liquid crystal panel via a TAB-film.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-10 | 2000-06-10 | 2000-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-10 | 2004-06-10 | 2004-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-10 | 2008-06-10 | 2008-12-10 | $7700.00 | Window Closed / Lapsed |