TW200951572A - Backlight device and liquid crystal display device - Google Patents

Backlight device and liquid crystal display device

Info

Publication number
TW200951572A
TW200951572A TW097149112A TW97149112A TW200951572A TW 200951572 A TW200951572 A TW 200951572A TW 097149112 A TW097149112 A TW 097149112A TW 97149112 A TW97149112 A TW 97149112A TW 200951572 A TW200951572 A TW 200951572A
Authority
TW
Taiwan
Prior art keywords
liquid crystal
crystal display
display device
light emitting
backlight device
Prior art date
Application number
TW097149112A
Other languages
Chinese (zh)
Other versions
TWI465807B (en
Inventor
Kenichi Harai
Original Assignee
Zeon 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 Zeon Corp filed Critical Zeon Corp
Publication of TW200951572A publication Critical patent/TW200951572A/en
Application granted granted Critical
Publication of TWI465807B publication Critical patent/TWI465807B/en

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
    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

Provided are a liquid crystal display device, which has low manufacturing cost, low power consumption and high luminance, and a backlight device for providing such liquid crystal display device. The backlight device is provided with a light source, which has one or more light emitting regions in a wavelength band of 400nm or more but not more than 600 nm and one or more light emitting regions in a wavelength band of 600 nm or more but not more than 700nm; and a selective reflection element disposed on the side of the light emitting surface of the light source. The selective reflection band of the selective reflection element includes at least a part of the light emitting region in the wavelength band of 600 nm or more but not more than 700 nm. The liquid crystal display device provided with such backlight device is also provided.
TW097149112A 2007-12-26 2008-12-17 A backlight device and a liquid crystal display device TWI465807B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007335085 2007-12-26
PCT/JP2008/072423 WO2009081735A1 (en) 2007-12-26 2008-12-10 Backlight device and liquid crystal display device

Publications (2)

Publication Number Publication Date
TW200951572A true TW200951572A (en) 2009-12-16
TWI465807B TWI465807B (en) 2014-12-21

Family

ID=40801043

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097149112A TWI465807B (en) 2007-12-26 2008-12-17 A backlight device and a liquid crystal display device

Country Status (3)

Country Link
JP (1) JP5195765B2 (en)
TW (1) TWI465807B (en)
WO (1) WO2009081735A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107848274B (en) 2015-07-28 2020-10-30 日本瑞翁株式会社 Cholesteric resin laminate, method for producing same, and use thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11316372A (en) * 1998-04-30 1999-11-16 Seiko Epson Corp Liquid crystal device and electronic equipment
JP2003294948A (en) * 2002-04-08 2003-10-15 Nitto Denko Corp Band filter and surface light source device using the same
JP4293888B2 (en) * 2003-03-31 2009-07-08 日東電工株式会社 Broadband cholesteric liquid crystal film manufacturing method, circularly polarizing plate, linearly polarizing element, illumination device, and liquid crystal display device
JP4251483B2 (en) * 2003-06-24 2009-04-08 日東電工株式会社 Optical element, condensing backlight system, and liquid crystal display device
JP2007052398A (en) * 2005-07-22 2007-03-01 Sony Corp Light source apparatus and liquid crystal display device
JP4651544B2 (en) * 2005-07-27 2011-03-16 シャープ株式会社 Backlight device and liquid crystal display device

Also Published As

Publication number Publication date
JPWO2009081735A1 (en) 2011-05-06
JP5195765B2 (en) 2013-05-15
WO2009081735A1 (en) 2009-07-02
TWI465807B (en) 2014-12-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees