GB2289790B - Planar lamps and displays - Google Patents

Planar lamps and displays

Info

Publication number
GB2289790B
GB2289790B GB9508062A GB9508062A GB2289790B GB 2289790 B GB2289790 B GB 2289790B GB 9508062 A GB9508062 A GB 9508062A GB 9508062 A GB9508062 A GB 9508062A GB 2289790 B GB2289790 B GB 2289790B
Authority
GB
United Kingdom
Prior art keywords
displays
planar lamps
lamps
planar
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.)
Expired - Fee Related
Application number
GB9508062A
Other versions
GB9508062D0 (en
GB2289790A (en
Inventor
Neil Anthony Fox
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Publication of GB9508062D0 publication Critical patent/GB9508062D0/en
Publication of GB2289790A publication Critical patent/GB2289790A/en
Application granted granted Critical
Publication of GB2289790B publication Critical patent/GB2289790B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/92—Lamps with more than one main discharge path
    • H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight

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)
  • Vessels And Coating Films For Discharge Lamps (AREA)
GB9508062A 1994-05-24 1995-04-20 Planar lamps and displays Expired - Fee Related GB2289790B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9410375A GB9410375D0 (en) 1994-05-24 1994-05-24 Planar lamps and displays

Publications (3)

Publication Number Publication Date
GB9508062D0 GB9508062D0 (en) 1995-06-07
GB2289790A GB2289790A (en) 1995-11-29
GB2289790B true GB2289790B (en) 1997-11-26

Family

ID=10755620

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9410375A Pending GB9410375D0 (en) 1994-05-24 1994-05-24 Planar lamps and displays
GB9508062A Expired - Fee Related GB2289790B (en) 1994-05-24 1995-04-20 Planar lamps and displays

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9410375A Pending GB9410375D0 (en) 1994-05-24 1994-05-24 Planar lamps and displays

Country Status (1)

Country Link
GB (2) GB9410375D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769191B1 (en) * 2004-03-22 2007-10-23 엘지.필립스 엘시디 주식회사 flat fluorescent lamp and method for manufacturing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143433A (en) * 1991-11-01 1992-09-01 Litton Systems Canada Limited Night vision backlighting system for liquid crystal displays
US5262880A (en) * 1990-04-26 1993-11-16 Ois Optical Imaging Systems, Inc. Night vision goggle compatible liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262880A (en) * 1990-04-26 1993-11-16 Ois Optical Imaging Systems, Inc. Night vision goggle compatible liquid crystal display device
US5143433A (en) * 1991-11-01 1992-09-01 Litton Systems Canada Limited Night vision backlighting system for liquid crystal displays

Also Published As

Publication number Publication date
GB9508062D0 (en) 1995-06-07
GB2289790A (en) 1995-11-29
GB9410375D0 (en) 1994-07-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000420