JPS54127299A - Lighting structure of photo detection type display unit - Google Patents
Lighting structure of photo detection type display unitInfo
- Publication number
- JPS54127299A JPS54127299A JP3456478A JP3456478A JPS54127299A JP S54127299 A JPS54127299 A JP S54127299A JP 3456478 A JP3456478 A JP 3456478A JP 3456478 A JP3456478 A JP 3456478A JP S54127299 A JPS54127299 A JP S54127299A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- diffused
- display unit
- light
- type 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To lead uniformly light from a fine light source such as a lamp over the entire liquid-crystal display part with high efficiency.
CONSTITUTION: A degree of diffused reflection of diffused-reflection surface 14 at the top surface or reverse surface of photoconductor 14 is made small at part 14a near lamp 9 and increased as lamp 9 becomes away; and then, material 15 which diffuses light is provided between liquid-crystal cell 10 and photoconductor 14 in order to diffuse lamp light diffused uniformly over the entire display part, thereby obtaining soft illumination.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3456478A JPS54127299A (en) | 1978-03-25 | 1978-03-25 | Lighting structure of photo detection type display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3456478A JPS54127299A (en) | 1978-03-25 | 1978-03-25 | Lighting structure of photo detection type display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54127299A true JPS54127299A (en) | 1979-10-03 |
Family
ID=12417799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3456478A Pending JPS54127299A (en) | 1978-03-25 | 1978-03-25 | Lighting structure of photo detection type display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54127299A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990983U (en) * | 1982-12-11 | 1984-06-20 | 株式会社本田ロック | liquid crystal display device |
DE3313288A1 (en) * | 1983-04-13 | 1984-10-18 | Bosch Gmbh Robert | Device for illuminating passive displays |
JPS6227306U (en) * | 1985-08-01 | 1987-02-19 | ||
JPS6326874U (en) * | 1986-08-04 | 1988-02-22 | ||
JPH0217A (en) * | 1987-11-12 | 1990-01-05 | Mitsubishi Rayon Co Ltd | Surface light source element |
JPH0365982A (en) * | 1989-08-03 | 1991-03-20 | Pioneer Electron Corp | Display board illuminating device for display device |
JPH03118593A (en) * | 1989-09-29 | 1991-05-21 | Enplas Corp | Illuminator |
US5377027A (en) * | 1992-10-02 | 1994-12-27 | Motorola, Inc. | Liquid crystal display device with pixel registration illumination |
US5394255A (en) * | 1992-01-27 | 1995-02-28 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Liquid crystal display using a plurality of light adjusting sheets angled at 5 degrees or more |
US6356391B1 (en) | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
US6447135B1 (en) | 1999-10-08 | 2002-09-10 | 3M Innovative Properties Company | Lightguide having a directly secured reflector and method of making the same |
US6845212B2 (en) | 1999-10-08 | 2005-01-18 | 3M Innovative Properties Company | Optical element having programmed optical structures |
US7046905B1 (en) | 1999-10-08 | 2006-05-16 | 3M Innovative Properties Company | Blacklight with structured surfaces |
-
1978
- 1978-03-25 JP JP3456478A patent/JPS54127299A/en active Pending
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990983U (en) * | 1982-12-11 | 1984-06-20 | 株式会社本田ロック | liquid crystal display device |
DE3313288A1 (en) * | 1983-04-13 | 1984-10-18 | Bosch Gmbh Robert | Device for illuminating passive displays |
JPS6227306U (en) * | 1985-08-01 | 1987-02-19 | ||
JPH052883Y2 (en) * | 1985-08-01 | 1993-01-25 | ||
JPS6326874U (en) * | 1986-08-04 | 1988-02-22 | ||
JPH0217A (en) * | 1987-11-12 | 1990-01-05 | Mitsubishi Rayon Co Ltd | Surface light source element |
JPH0365982A (en) * | 1989-08-03 | 1991-03-20 | Pioneer Electron Corp | Display board illuminating device for display device |
JPH03118593A (en) * | 1989-09-29 | 1991-05-21 | Enplas Corp | Illuminator |
US5394255A (en) * | 1992-01-27 | 1995-02-28 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Liquid crystal display using a plurality of light adjusting sheets angled at 5 degrees or more |
US5377027A (en) * | 1992-10-02 | 1994-12-27 | Motorola, Inc. | Liquid crystal display device with pixel registration illumination |
US6356391B1 (en) | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
US6447135B1 (en) | 1999-10-08 | 2002-09-10 | 3M Innovative Properties Company | Lightguide having a directly secured reflector and method of making the same |
US6560026B2 (en) | 1999-10-08 | 2003-05-06 | Mark E. Gardiner | Optical film with variable angle prisms |
US6707611B2 (en) | 1999-10-08 | 2004-03-16 | 3M Innovative Properties Company | Optical film with variable angle prisms |
US6845212B2 (en) | 1999-10-08 | 2005-01-18 | 3M Innovative Properties Company | Optical element having programmed optical structures |
US7046905B1 (en) | 1999-10-08 | 2006-05-16 | 3M Innovative Properties Company | Blacklight with structured surfaces |
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