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EP0595372A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Liquid crystal apparatus

Assignee: Canon Inc
•
Filing: 1990-12-28
•
Granted: —
•
Expires: 2010-12-28
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Abstract

Abstract A liquid crystal display apparatus is constituted by using (a) a liquid crystal panel comprising a pair of substrates each provided with an electrode and a liquid crystal disposed between the substrates in combination with (b) a supporting member having a frame for supporting the liquid crystal panel. The liquid crystal panel is fixed in a floating state to the frame of the supporting member by the medium of (c) an elastic member so as to define an almost closed space defined by the liquid crystal panel, the supporting member and the elastic member. The almost closed space functions to suppress a deleterious flexural deformation of the liquid crystal panel in response to external mechanical forces, such as dropping impact and vibration, and also provides a good heat efficiency when it is used in combination with a planar heater for heating the liquid crystal panel.

Inventors

  • 👤 Hirofumi C/O Canon Kabushiki Kaisha Iwamoto
  • 👤 Hisao C/O Canon Kabushiki Kaisha Tajima
  • 👤 Makoto C/O Canon Kabushiki Kaisha Uehara
  • 👤 Yoshihiro C/O Canon Kabushiki Kaisha Onitsuka
  • 👤 Takao C/O Canon Kabushiki Kaisha Miyamoto
  • 👤 Hiroshi C/O Canon Kabushiki Kaisha Takabayashi
  • 👤 Satoshi C/O Canon Kabushiki Kaisha Yoshihara

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 13:30
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133382; G02F1/133308; G02F1/132; G02F1/133314; G02F1/133317; G02F2201/00; G02F2201/50; G02F2201/503

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 117 words
A liquid crystal display apparatus, comprising: a liquid crystal panel (100; 900; 1500) comprising a pair of substrates (101, 102; 901, 902; 1501, 1502) each provided with an electrode and a liquid crystal disposed between the substrates (101, 102; 901, 902; 1501, 1502), a drive integrated circuit (105; 910; 1509) for driving the liquid crystal panel (100; 900; 1500) and a peripheral circuit (106; 911; 911-a; 1510) for the drive integrated circuit (105; 910; 1509); the liquid crystal panel (100; 900; 1500), the drive integrated circuit (105; 910; 1509) and the peripheral circuit (106; 911; 911-a; 1510) in combination forming a structural unit having a face in contact with an almost closed space (117; 603; 918; 1521).
Claim 2
Dependent Claim 18 words
An apparatus according to claim 2, characterized by a panel-fixing plate (912; 912-a; 1511) supporting the structural unit.
Claim 3
Dependent Claim 44 words
An apparatus according to claim 2, characterized by a supporting member (108; 914; 916; 1513) having a frame, to which the panel-fixing plate (912; 912-a; 1511) is supported in a floating state by the medium of an elastic member (115; 601; 915; 915-a; 1514).
Claim 4
Dependent Claim 34 words
An apparatus according to claim 1, characterized in that an air-leaking part (116; 919; 1522) is formed in at least one member or between members defining the almost closed space (117; 603; 918; 1521).
Claim 5
Dependent Claim 25 words
An apparatus according to claim 2, characterized in that said supporting member (108; 914; 916; 1513) and panel-fixing plate (912; 912-a; 1511) comprise a plastic.
Claim 6
Dependent Claim 21 words
An apparatus according to claim 3, characterized in that said elastic member (115; 601; 915; 915-a; 1514) comprises a rubber-type adhesive.
Claim 7
Dependent Claim 38 words
An apparatus according to claim 1, characterized in that said structural unit principally comprises the liquid cyrstal panel (100; 900; 1500), a tape automation-bonded integrated circuit (105; 910; 1509) and a print circuit board (106; 911; 911-a; 1510).
Claim 8
Dependent Claim 45 words
An apparatus according to claim 1, characterized in that said structural unit principally comprises the liquid crystal panel (100; 900; 1500), a flexible circuit board (105; 910; 1509), and a print circuit board (106; 911; 911-a; 1510) loading the drive integrated circuit (105; 910; 1509).
Claim 9
Dependent Claim 40 words
An apparatus according to claim 1, characterized in that said structural unit principally comprises the liquid crystal panel (100; 900; 1500) loading the drive integrated circuit (105; 910; 1509) the peripheral circuit (106; 911; 911-a; 1510) in a chip-on-glass fashion.
Claim 10
Dependent Claim 17 words
An apparatus according to claim 1, characterized in that said liquid crystal is a ferroelectric liquid crystal.
Claim 11
Dependent Claim 19 words
An apparatus according to claim 10, characterized in that said ferroelectric liquid crystal is a chiral smectic liquid crystal.

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