TW200834187A - Surface light source element and image display device with the same - Google Patents

Surface light source element and image display device with the same

Info

Publication number
TW200834187A
TW200834187A TW96145496A TW96145496A TW200834187A TW 200834187 A TW200834187 A TW 200834187A TW 96145496 A TW96145496 A TW 96145496A TW 96145496 A TW96145496 A TW 96145496A TW 200834187 A TW200834187 A TW 200834187A
Authority
TW
Taiwan
Prior art keywords
light source
source element
surface light
display device
image display
Prior art date
Application number
TW96145496A
Other languages
Chinese (zh)
Inventor
Seiji Kinoshita
Original Assignee
Kuraray Co
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 Kuraray Co filed Critical Kuraray Co
Publication of TW200834187A publication Critical patent/TW200834187A/en

Links

Classifications

    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)

Abstract

In this invention there is provided a surface light source element which is related to a surface light source element with a line light source as an edge light arranges beside the laleral side of a light guide plate and is characterized in that a pattern is constructed by a plurality of recessed bars which are formed parallel to the light source on the bottom surface of the light source, and the inclination of the recessed bar to the bottom surface is substantially in the range from more than 30 degree to less than 45 degree, and the pitch of distance between the centers of two arbitrary neighbor of recesses bars satisfies the following equations: Hv/tan(Φin) ≤ P ≤ L*Hv*0.3 (1) Φin =(C3R3+C2R2+C1R+C0)+2R-90.0 DEG (2) C0= -1.25*10<SP>2</SP>, C1=1.31*10<SP>1</SP>, C2= -3.30*10<SP>-1</SP>, C3=2.43*10<SP>-3</SP>. The surface light source element provides on image display device with excellent imaging quality by providing a light guide which can eliminate or reduce the use of a diffusion plate and reduce the occurance of dark lines which lower the imaging quality.
TW96145496A 2006-12-01 2007-11-30 Surface light source element and image display device with the same TW200834187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006326047 2006-12-01

Publications (1)

Publication Number Publication Date
TW200834187A true TW200834187A (en) 2008-08-16

Family

ID=39467940

Family Applications (1)

Application Number Title Priority Date Filing Date
TW96145496A TW200834187A (en) 2006-12-01 2007-11-30 Surface light source element and image display device with the same

Country Status (3)

Country Link
JP (1) JPWO2008066154A1 (en)
TW (1) TW200834187A (en)
WO (1) WO2008066154A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130051130A (en) * 2011-11-09 2013-05-20 삼성전자주식회사 Backlight unit and display apparatus having the same
US9515235B2 (en) 2012-01-16 2016-12-06 Osram Sylvania Inc. Silicone-grafted core-shell particles, polymer matrix, and LED containing same
TWI481915B (en) 2013-08-20 2015-04-21 Radiant Opto Electronics Corp Light guide plate with multidirectional structures
TWI485453B (en) * 2014-01-02 2015-05-21 Radiant Opto Electronics Corp Light guide plate
CN104503017B (en) * 2014-12-26 2018-01-16 深圳市华星光电技术有限公司 Light guide plate, backlight module and liquid crystal display device
CN104820257A (en) * 2015-04-20 2015-08-05 北京京东方茶谷电子有限公司 Light guide plate, backlight source and display device
CN108132562B (en) * 2018-01-05 2021-01-29 京东方科技集团股份有限公司 Lamp strip sticky tape, backlight unit and display device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3644787B2 (en) * 1996-05-09 2005-05-11 松下電器産業株式会社 Planar illumination system
JP2001124930A (en) * 1999-10-29 2001-05-11 Nippon Leiz Co Ltd Light transmission plate and planar illuminator
JP2003156629A (en) * 2001-11-20 2003-05-30 Nippon Tokushu Kogaku Jushi Kk Optical conversion element and liquid crystal display
WO2006013969A1 (en) * 2004-08-06 2006-02-09 Kuraray Co., Ltd. Light guide plate, production method therefor, and surface light source device provided with it

Also Published As

Publication number Publication date
WO2008066154A1 (en) 2008-06-05
JPWO2008066154A1 (en) 2010-03-11

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