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GB2443111B - Partial reflection reduction from a curved lamp in an illumination device for display devices. - Google Patents

Partial reflection reduction from a curved lamp in an illumination device for display devices.

Info

Publication number
GB2443111B
GB2443111B GB0800153A GB0800153A GB2443111B GB 2443111 B GB2443111 B GB 2443111B GB 0800153 A GB0800153 A GB 0800153A GB 0800153 A GB0800153 A GB 0800153A GB 2443111 B GB2443111 B GB 2443111B
Authority
GB
United Kingdom
Prior art keywords
display devices
illumination device
partial reflection
reflection reduction
curved lamp
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
GB0800153A
Other versions
GB2443111A (en
GB0800153D0 (en
Inventor
Yoshiki Takata
Katsuaki Yamada
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to GB0800153A priority Critical patent/GB2443111B/en
Priority claimed from GB0615372A external-priority patent/GB2426621B/en
Publication of GB0800153D0 publication Critical patent/GB0800153D0/en
Publication of GB2443111A publication Critical patent/GB2443111A/en
Application granted granted Critical
Publication of GB2443111B publication Critical patent/GB2443111B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02F1/133604—Direct backlight with lamps
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
GB0800153A 2004-01-08 2004-11-18 Partial reflection reduction from a curved lamp in an illumination device for display devices. Expired - Fee Related GB2443111B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0800153A GB2443111B (en) 2004-01-08 2004-11-18 Partial reflection reduction from a curved lamp in an illumination device for display devices.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004003076 2004-01-08
GB0615372A GB2426621B (en) 2004-01-08 2004-11-18 Lighting device for display devices, liquid crystal display device, and light source lamp
GB0800153A GB2443111B (en) 2004-01-08 2004-11-18 Partial reflection reduction from a curved lamp in an illumination device for display devices.

Publications (3)

Publication Number Publication Date
GB0800153D0 GB0800153D0 (en) 2008-02-13
GB2443111A GB2443111A (en) 2008-04-23
GB2443111B true GB2443111B (en) 2008-07-23

Family

ID=39262688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0800153A Expired - Fee Related GB2443111B (en) 2004-01-08 2004-11-18 Partial reflection reduction from a curved lamp in an illumination device for display devices.

Country Status (1)

Country Link
GB (1) GB2443111B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0571173A2 (en) * 1992-05-22 1993-11-24 Nokia Mobile Phones Ltd. Illuminated LCD apparatus
GB2358513A (en) * 1999-12-06 2001-07-25 Indigitale Ltd Lighting apparatus and illuminated signs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0571173A2 (en) * 1992-05-22 1993-11-24 Nokia Mobile Phones Ltd. Illuminated LCD apparatus
US5477422A (en) * 1992-05-22 1995-12-19 Nokia Mobile Phones Limited Illuminated LCD apparatus
GB2358513A (en) * 1999-12-06 2001-07-25 Indigitale Ltd Lighting apparatus and illuminated signs

Also Published As

Publication number Publication date
GB2443111A (en) 2008-04-23
GB0800153D0 (en) 2008-02-13

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Legal Events

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

Effective date: 20161118