JPS64515A - Illuminating device for liquid crystal display device - Google Patents
Illuminating device for liquid crystal display deviceInfo
- Publication number
- JPS64515A JPS64515A JP63025517A JP2551788A JPS64515A JP S64515 A JPS64515 A JP S64515A JP 63025517 A JP63025517 A JP 63025517A JP 2551788 A JP2551788 A JP 2551788A JP S64515 A JPS64515 A JP S64515A
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- light emitting
- emitting part
- liquid crystal
- crystal display
- 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
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To uniformly illuminate a display panel without unequal brightness by disposing a total reflecting surface along the rear face of a light emitting part and disposing a diffusion reflecting surface along the side face thereof.
CONSTITUTION: A fluorescent tube 11 having the straight light emitting part 11a emits lights as a power feed terminal is connected to a 2nd circuit board 16 and when electricity is supplied thereto. The specular surface-like total reflecting surface 13a is provided to the reflecting surface of a reflecting plate 12 positioned along the rear face of the light emitting part 11a of the fluorescent tube 11 and the diffusion reflecting surface 14a which has a high reflectivity to diffuse and reflect light is provided on the reflecting surface of the reflecting plate 12 positioned along the side face of the light emitting part 11a. The unequal brightness is thereby eliminated and the illumination efficiency is improved.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63025517A JP2573282B2 (en) | 1987-03-04 | 1988-02-05 | Lighting device for liquid crystal display |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4760987 | 1987-03-04 | ||
JP62-47609 | 1987-03-04 | ||
JP63025517A JP2573282B2 (en) | 1987-03-04 | 1988-02-05 | Lighting device for liquid crystal display |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH01515A JPH01515A (en) | 1989-01-05 |
JPS64515A true JPS64515A (en) | 1989-01-05 |
JP2573282B2 JP2573282B2 (en) | 1997-01-22 |
Family
ID=26363135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63025517A Expired - Fee Related JP2573282B2 (en) | 1987-03-04 | 1988-02-05 | Lighting device for liquid crystal display |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2573282B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720775A (en) * | 1986-06-03 | 1988-01-19 | Qualidyne Systems, Inc. | Inverter having saturating current transformer core for maintaining inverter current above minimum predetermined level |
JPS642275U (en) * | 1987-06-24 | 1989-01-09 | ||
JPH02226120A (en) * | 1989-02-28 | 1990-09-07 | Konica Corp | Liquid crystal display device |
JPH0363688A (en) * | 1989-06-08 | 1991-03-19 | General Electric Co <Ge> | Prism type lighting apparatus for flat panel display |
US5283674A (en) * | 1991-09-30 | 1994-02-01 | Sony Corporation | Backlight apparatus having ventilating holes for liquid crystal display |
JP2002311430A (en) * | 2001-04-11 | 2002-10-23 | Kyocera Corp | Liquid crystal display |
US7190423B2 (en) | 2002-06-24 | 2007-03-13 | Nec Lcd Technologies, Ltd. | Liquid crystal monitor |
JPWO2010001657A1 (en) * | 2008-07-04 | 2011-12-15 | シャープ株式会社 | Liquid crystal display device and liquid crystal display unit |
-
1988
- 1988-02-05 JP JP63025517A patent/JP2573282B2/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720775A (en) * | 1986-06-03 | 1988-01-19 | Qualidyne Systems, Inc. | Inverter having saturating current transformer core for maintaining inverter current above minimum predetermined level |
JPS642275U (en) * | 1987-06-24 | 1989-01-09 | ||
JPH0542461Y2 (en) * | 1987-06-24 | 1993-10-26 | ||
JPH02226120A (en) * | 1989-02-28 | 1990-09-07 | Konica Corp | Liquid crystal display device |
JPH0363688A (en) * | 1989-06-08 | 1991-03-19 | General Electric Co <Ge> | Prism type lighting apparatus for flat panel display |
US5283674A (en) * | 1991-09-30 | 1994-02-01 | Sony Corporation | Backlight apparatus having ventilating holes for liquid crystal display |
JP2002311430A (en) * | 2001-04-11 | 2002-10-23 | Kyocera Corp | Liquid crystal display |
JP4721543B2 (en) * | 2001-04-11 | 2011-07-13 | 京セラ株式会社 | Backlight and liquid crystal display device |
US7190423B2 (en) | 2002-06-24 | 2007-03-13 | Nec Lcd Technologies, Ltd. | Liquid crystal monitor |
JPWO2010001657A1 (en) * | 2008-07-04 | 2011-12-15 | シャープ株式会社 | Liquid crystal display device and liquid crystal display unit |
US8502843B2 (en) | 2008-07-04 | 2013-08-06 | Sharp Kabushiki Kaisha | Liquid crystal display device and liquid crystal display unit |
Also Published As
Publication number | Publication date |
---|---|
JP2573282B2 (en) | 1997-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |