TWI323817B - A light source for lcd back-lit displays - Google Patents

A light source for lcd back-lit displays Download PDF

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Publication number
TWI323817B
TWI323817B TW095126732A TW95126732A TWI323817B TW I323817 B TWI323817 B TW I323817B TW 095126732 A TW095126732 A TW 095126732A TW 95126732 A TW95126732 A TW 95126732A TW I323817 B TWI323817 B TW I323817B
Authority
TW
Taiwan
Prior art keywords
light
guide plate
excitation wavelength
conversion layer
angle
Prior art date
Application number
TW095126732A
Other languages
English (en)
Chinese (zh)
Other versions
TW200708858A (en
Inventor
Janet Bee Yin Chua
Yue Hoong Lau
Original Assignee
Avago Technologies General Ip
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 Avago Technologies General Ip filed Critical Avago Technologies General Ip
Publication of TW200708858A publication Critical patent/TW200708858A/zh
Application granted granted Critical
Publication of TWI323817B publication Critical patent/TWI323817B/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
TW095126732A 2005-08-01 2006-07-21 A light source for lcd back-lit displays TWI323817B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/195,200 US7513669B2 (en) 2005-08-01 2005-08-01 Light source for LCD back-lit displays

Publications (2)

Publication Number Publication Date
TW200708858A TW200708858A (en) 2007-03-01
TWI323817B true TWI323817B (en) 2010-04-21

Family

ID=36998370

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095126732A TWI323817B (en) 2005-08-01 2006-07-21 A light source for lcd back-lit displays

Country Status (6)

Country Link
US (1) US7513669B2 (https=)
JP (2) JP2007058209A (https=)
KR (1) KR101401125B1 (https=)
CN (1) CN1908762B (https=)
GB (3) GB2446978B (https=)
TW (1) TWI323817B (https=)

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TWI461793B (zh) * 2010-07-09 2014-11-21 Ｌｇ伊諾特股份有限公司 顯示裝置
US9207380B2 (en) 2010-07-09 2015-12-08 Lg Innotek Co., Ltd. Display device
US8740438B2 (en) 2011-01-18 2014-06-03 Young Lighting Technology Corporation Illumination module

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GB0801700D0 (en) 2008-03-05
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KR101401125B1 (ko) 2014-05-29
CN1908762B (zh) 2010-12-22
GB0808760D0 (en) 2008-06-18
KR20130114049A (ko) 2013-10-16
GB0614369D0 (en) 2006-08-30
US20070081329A1 (en) 2007-04-12
TW200708858A (en) 2007-03-01
GB2446978B (en) 2008-10-15
JP2013048094A (ja) 2013-03-07
CN1908762A (zh) 2007-02-07
GB2446978A (en) 2008-08-27
GB2443754A (en) 2008-05-14
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US7513669B2 (en) 2009-04-07
GB2443754B (en) 2008-10-15

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