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EP0352636A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Liquid crystal display device

Assignee: Citizen Watch Co Ltd
•
Filing: 1989-07-20
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Granted: —
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Expires: 2009-07-20
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Abstract

Abstract A liquid crystal display device is used in a projector for projecting an image on a liquid crystal display panel (300) onto a screen. The display device has a housing (100) having a panel housing portion (101) and a control circuit housing portion (102). The liquid crystal display panel (300) is housed in the panel housing portion (101), and a control (400) circuit is housed in the control circuit housing portion (102). Circuit chips are mounted on glasses of the liquid crystal display panel for driving electrodes of the panel. The panel housing portion has a pair of attached portions formed on opposite longitudinal sides thereof, which are attached to the projector. Thickness of each side of the attached portions is less than 6 mm, and width of the panel housing portion is about 50 mm.

Inventors

  • 👤 Akira Gijutsukenkyujo Miyajima

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 03:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; Y; Y10; Y10S; Y10S345/00; Y10S345/905

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 153 words
A liquid crystal display device inserted between a light source and a lens of a projector for projecting an image on a liquid crystal display panel onto a screen, comprising: a housing comprising a front cover and a rear cover and having a panel housing portion and a control circuit housing portion which are longitudinally arranged; said liquid crystal display panel being housed in said panel housing portion; a control circuit housed in said control circuit housing portion; circuit chips mounted on glasses of said liquid crystal display panel for driving electrodes of the panel; connecting means for connecting said circuit chips with said control circuit; a pair of attached portions formed on opposite longitudinal sides of said panel housing portion, which are arranged to be attached to the projector; thickness of each of said attached portions being less than 6 mm, and width of said panel housing portion being about 50 mm.
Claim 2
Dependent Claim 153 words
A liquid crystal display device inserted between a light source and a lens of a projector for projecting an image on a liquid crystal display panel onto a screen, comprising: a housing comprising a front cover and a rear cover and having a panel housing portion and a control circuit housing portion which are longitudinally arranged; said liquid crystal display panel being housed in said panel housing portion; a control circuit housed in said control circuit housing portion; circuit chips mounted on glasses of said liquid crystal display panel for driving electrodes of the panel; connecting means for connecting said circuit chips with said control circuit; a pair of attached portions formed on opposite longitudinal sides of said panel housing portion, which are arranged to be attached to the projector; thickness of each of said attached portions being less than 6 mm, and width of said panel housing portion being about 50 mm.
Claim 3
Dependent Claim 26 words
The liquid crystal display device according to claim 1 wherein the thickness of said attached portion is smaller than the thickness of said panel housing portion.
Claim 4
Dependent Claim 28 words
The liquid crystal display device according to claim 1 wherein the thickness of said panel housing portion is smaller than the thickness of said control circuit housing portion.

References Cited (Backward Citations)

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