CA2239452A1 - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- CA2239452A1 CA2239452A1 CA002239452A CA2239452A CA2239452A1 CA 2239452 A1 CA2239452 A1 CA 2239452A1 CA 002239452 A CA002239452 A CA 002239452A CA 2239452 A CA2239452 A CA 2239452A CA 2239452 A1 CA2239452 A1 CA 2239452A1
- Authority
- CA
- Canada
- Prior art keywords
- light
- liquid crystal
- guiding plate
- crystal panel
- display portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Planar Illumination Modules (AREA)
Abstract
A light converging unit using a prism lens adapted for use in a back light device and which enables the device to be manufactured in a thinner size and at a lower cost. A liquid crystal display comprises a display means for displaying characters and graphics, the means including a display portion comprising at least a liquid crystal panel; an illuminating means for illuminating the display portion of the liquid crystal panel, and a converging means for converging light rays from the illuminating means at the display portion of the liquid crystal panel wherein, the illuminating means comprises a lamp, a light-guiding plate for receiving therein light rays of the lamp through a lateral surface thereof and for uniformly propagating and diffusing the light rays therein, a reflecting plate disposed on the rear surface of the light-guiding plate to reflect light rays from the rear surface of the light-guiding plate, and a diffusing plate disposed on the front surface of the light-guiding plate to diffuse light rays from the front surface of the light-guiding plate; and that the converging means, the light-guiding plate, the reflecting plate, and the diffusing plate are integrally welded to each other at least one peripheral position not affecting the display portion of the liquid crystal panel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002239452A CA2239452C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4165298A JP2931480B2 (en) | 1992-06-01 | 1992-06-01 | Light collecting device used for light source device |
JP4-165298 | 1992-06-01 | ||
JP23455692 | 1992-09-02 | ||
JP4-234556 | 1992-09-02 | ||
JP4345012A JPH06194652A (en) | 1992-12-25 | 1992-12-25 | Liquid crystal display device |
JP4-345012 | 1992-12-25 | ||
JP02745793A JP3263460B2 (en) | 1992-09-02 | 1993-01-21 | Backlight device |
JP5-027457 | 1993-01-21 | ||
CA002239452A CA2239452C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
CA002097109A CA2097109C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002097109A Division CA2097109C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2239452A1 true CA2239452A1 (en) | 1993-12-02 |
CA2239452C CA2239452C (en) | 2001-07-03 |
Family
ID=27508506
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002239452A Expired - Fee Related CA2239452C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
CA002239477A Expired - Fee Related CA2239477C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002239477A Expired - Fee Related CA2239477C (en) | 1992-06-01 | 1993-05-27 | Liquid crystal display |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2239452C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110133908A (en) * | 2019-04-11 | 2019-08-16 | 深圳康佳电子科技有限公司 | A kind of the modularized production method and its structure of liquid crystal display television optical element |
-
1993
- 1993-05-27 CA CA002239452A patent/CA2239452C/en not_active Expired - Fee Related
- 1993-05-27 CA CA002239477A patent/CA2239477C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110133908A (en) * | 2019-04-11 | 2019-08-16 | 深圳康佳电子科技有限公司 | A kind of the modularized production method and its structure of liquid crystal display television optical element |
Also Published As
Publication number | Publication date |
---|---|
CA2239477A1 (en) | 1993-12-02 |
CA2239477C (en) | 2001-07-03 |
CA2239452C (en) | 2001-07-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |