GB2314665A - Efficient backlighting for lcds - Google Patents
Efficient backlighting for lcdsInfo
- Publication number
- GB2314665A GB2314665A GB9722791A GB9722791A GB2314665A GB 2314665 A GB2314665 A GB 2314665A GB 9722791 A GB9722791 A GB 9722791A GB 9722791 A GB9722791 A GB 9722791A GB 2314665 A GB2314665 A GB 2314665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light emitting
- transmissive
- lcds
- support element
- continuous
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
A display comprising a light modulator defining between a transmissive rear support element and a transmissive front support element a plurality of selectively addressable regions which can be switched between at least an opaque state and a transmissive state, and a light emitting device (8) arranged adjacent the light modulator (9) and fixed to the same comprising a substrate (6) on which is formed a continuous first electrode layer (7), a continuous light emitting layer (11) and a second electrode layer (13) which extends continuously over the light emitting layer (11) to encapsulate an active area of the light emitting device (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9722791A GB2314665B (en) | 1996-04-10 | 1997-04-02 | Efficient backlighting for lcds |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9607434.9A GB9607434D0 (en) | 1996-04-10 | 1996-04-10 | Efficient backlighting for lcd's |
GBGB9615937.1A GB9615937D0 (en) | 1996-04-10 | 1996-07-30 | Efficient backlighting for LCDs |
PCT/GB1997/000939 WO1997038347A1 (en) | 1996-04-10 | 1997-04-02 | Efficient backlighting for lcds |
GB9722791A GB2314665B (en) | 1996-04-10 | 1997-04-02 | Efficient backlighting for lcds |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9722791D0 GB9722791D0 (en) | 1997-12-24 |
GB2314665A true GB2314665A (en) | 1998-01-07 |
GB2314665B GB2314665B (en) | 2000-05-17 |
Family
ID=27268232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9722791A Expired - Fee Related GB2314665B (en) | 1996-04-10 | 1997-04-02 | Efficient backlighting for lcds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2314665B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2341973A (en) * | 1998-09-24 | 2000-03-29 | Screen Tech Ltd | A laser screen for a flat panel display |
GB2332082B (en) * | 1997-12-03 | 2002-02-27 | Nec Corp | A liquid crystal display with an electroluminescent back light |
GB2390437A (en) * | 2002-07-06 | 2004-01-07 | Nokia Corp | Liquid crystal display device comprising an electrically operated optical layer |
US7436470B2 (en) | 2002-07-06 | 2008-10-14 | Spyder Navigations L.L.C. | Display device having liquid crystal layer and switchable optical layer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3037224A1 (en) * | 1980-10-02 | 1982-04-29 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Electro-optical display - uses e.c.l. cell behind l.c.d. for illumination |
JPS58221828A (en) * | 1982-06-18 | 1983-12-23 | Sharp Corp | Display device |
JPS5937530A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display device |
US4775820A (en) * | 1984-07-31 | 1988-10-04 | Canon Kabushiki Kaisha | Multilayer electroluminescent device |
EP0701290A1 (en) * | 1994-09-12 | 1996-03-13 | Motorola, Inc. | Organic light emitting diodes with molecular alignment and method of fabrication |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06160850A (en) * | 1992-11-26 | 1994-06-07 | Sharp Corp | Liquid crystal display device |
-
1997
- 1997-04-02 GB GB9722791A patent/GB2314665B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3037224A1 (en) * | 1980-10-02 | 1982-04-29 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Electro-optical display - uses e.c.l. cell behind l.c.d. for illumination |
JPS58221828A (en) * | 1982-06-18 | 1983-12-23 | Sharp Corp | Display device |
JPS5937530A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display device |
US4775820A (en) * | 1984-07-31 | 1988-10-04 | Canon Kabushiki Kaisha | Multilayer electroluminescent device |
EP0701290A1 (en) * | 1994-09-12 | 1996-03-13 | Motorola, Inc. | Organic light emitting diodes with molecular alignment and method of fabrication |
Non-Patent Citations (3)
Title |
---|
NATURE vol.370 no.6488 pages 354-357 * |
Patent Abstracts of Japan vol. 8 no. 79 (P-267) & JP 58 221 828 A * |
Patent Abstracts of Japan vol. 8 no.137 (P-282) & JP 59 037 530 A * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2332082B (en) * | 1997-12-03 | 2002-02-27 | Nec Corp | A liquid crystal display with an electroluminescent back light |
GB2341973A (en) * | 1998-09-24 | 2000-03-29 | Screen Tech Ltd | A laser screen for a flat panel display |
GB2390437A (en) * | 2002-07-06 | 2004-01-07 | Nokia Corp | Liquid crystal display device comprising an electrically operated optical layer |
GB2390437B (en) * | 2002-07-06 | 2006-02-08 | Nokia Corp | A display device |
US7436470B2 (en) | 2002-07-06 | 2008-10-14 | Spyder Navigations L.L.C. | Display device having liquid crystal layer and switchable optical layer |
US7821597B2 (en) | 2002-07-06 | 2010-10-26 | Steve Doe | Display device having liquid crystal layer and switchable optical layer |
Also Published As
Publication number | Publication date |
---|---|
GB2314665B (en) | 2000-05-17 |
GB9722791D0 (en) | 1997-12-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20120402 |