TW200834003A - Surface light source device and light control component for using the same, and image display using the surface light source device - Google Patents

Surface light source device and light control component for using the same, and image display using the surface light source device

Info

Publication number
TW200834003A
TW200834003A TW096133328A TW96133328A TW200834003A TW 200834003 A TW200834003 A TW 200834003A TW 096133328 A TW096133328 A TW 096133328A TW 96133328 A TW96133328 A TW 96133328A TW 200834003 A TW200834003 A TW 200834003A
Authority
TW
Taiwan
Prior art keywords
light source
source device
control part
light control
surface light
Prior art date
Application number
TW096133328A
Other languages
Chinese (zh)
Inventor
Yoshimi Ohta
Ikuo Oonishi
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 TW200834003A publication Critical patent/TW200834003A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • 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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • 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
    • G02F1/133621—Illuminating devices providing coloured light

Abstract

The present invention is to realize high luminance uniformity and color uniformity in a front direction in a direct type surface light source device by using point light source device, i.e. LED, to enhance color rendition without performing strict position alignment with other components of the surface light source. The surface light source used to solve the aforementioned subject includes a light control component having a first light control part formed by a plurality of rising portions 1 and a second light control part formed by a plurality of rising portions 2. The surface light source device is characterized in that a one-cycle lengths of the point light source in the X-axis direction and Y-axis direction are set to be D1 and D2 respectively, the distances from the point light source to the first light control part and the second light control part are set to be H1 and H2 respectively, any randomly selected coordinates of position with respect to an origin at the center position of the point light source in the X-axis direction and Y-axis direction are set to be X and Y respectively, the ratios of the minimum and maximum for three-cycle component of the light intensity of the light irradiated to the first light control part and transmitted toward the positive direction of X and the light irradiated to the first light control part and transmitted toward the positive direction of Y are set to be more than 0.8, the shapes of the cross-sections of the rising portions 1 are constituted by regions with different tilt angles represented with D1, H1 and X, and the shapes of the cross-sections of the rising portions 2 are constituted by regions with different tilt angles represented with D2, H2 and Y.
TW096133328A 2006-09-08 2007-09-07 Surface light source device and light control component for using the same, and image display using the surface light source device TW200834003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006244177 2006-09-08

Publications (1)

Publication Number Publication Date
TW200834003A true TW200834003A (en) 2008-08-16

Family

ID=39157334

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096133328A TW200834003A (en) 2006-09-08 2007-09-07 Surface light source device and light control component for using the same, and image display using the surface light source device

Country Status (3)

Country Link
JP (1) JPWO2008029911A1 (en)
TW (1) TW200834003A (en)
WO (1) WO2008029911A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI404892B (en) * 2008-10-24 2013-08-11 Hon Hai Prec Ind Co Ltd Illumination device
TWI407055B (en) * 2008-10-17 2013-09-01 Hon Hai Prec Ind Co Ltd Illumination device
TWI706209B (en) * 2019-11-12 2020-10-01 茂林光電科技股份有限公司 Light guide plate for facilitating local dimming
WO2023133687A1 (en) * 2022-01-11 2023-07-20 Hefei Raysees Ai Technology Co., Ltd. Backlight module and display device ii

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4582223B2 (en) * 2008-08-12 2010-11-17 ソニー株式会社 Illumination device and display device
CN102818193B (en) * 2012-08-20 2014-12-10 创维液晶器件(深圳)有限公司 Direct type LED (light emitting diode) backlight module and display device of direct type LED backlight module
US10345647B2 (en) 2015-07-30 2019-07-09 Nichia Corporation Surface light source device and transmission display device
JP6679465B2 (en) * 2016-10-31 2020-04-15 株式会社クラレ Surface light source element

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185357B1 (en) * 1998-09-10 2001-02-06 Honeywell International Inc. Illumination system using edge-illuminated hollow waveguide and lenticular optical structures
JP4413672B2 (en) * 2003-03-31 2010-02-10 シャープ株式会社 Surface illumination device and liquid crystal display device using the same
JP4423933B2 (en) * 2003-11-11 2010-03-03 凸版印刷株式会社 Optical sheet and backlight unit and display using the same
JP4219287B2 (en) * 2004-02-25 2009-02-04 シャープ株式会社 Light emitting device and display device using the same
KR100586968B1 (en) * 2004-05-28 2006-06-08 삼성전기주식회사 Led package and backlight assembly for lcd device comprising the same
KR20060000977A (en) * 2004-06-30 2006-01-06 엘지.필립스 엘시디 주식회사 Back light unit of liquid crystal display device
JP2006228576A (en) * 2005-02-17 2006-08-31 Sony Corp Backlight device and liquid crystal display device
WO2007000952A1 (en) * 2005-06-26 2007-01-04 Amiteq Co., Ltd. Position sensor
JP3114467U (en) * 2005-07-07 2005-10-27 科橋電子股▲ふん▼有限公司 Light guide structure of direct type backlight module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI407055B (en) * 2008-10-17 2013-09-01 Hon Hai Prec Ind Co Ltd Illumination device
TWI404892B (en) * 2008-10-24 2013-08-11 Hon Hai Prec Ind Co Ltd Illumination device
TWI706209B (en) * 2019-11-12 2020-10-01 茂林光電科技股份有限公司 Light guide plate for facilitating local dimming
WO2023133687A1 (en) * 2022-01-11 2023-07-20 Hefei Raysees Ai Technology Co., Ltd. Backlight module and display device ii

Also Published As

Publication number Publication date
JPWO2008029911A1 (en) 2010-01-21
WO2008029911A1 (en) 2008-03-13

Similar Documents

Publication Publication Date Title
TW200834003A (en) Surface light source device and light control component for using the same, and image display using the surface light source device
TW200604649A (en) Diffusing board and surface light source device
TWI287154B (en) A display and a backlight module thereof
TW200730963A (en) Light guide member, flat light source device, and display device
TW200733425A (en) LED package and backlight unit using the same
WO2007025538A3 (en) Backlighting arrangement with semiconductor light sources arranged in illumination groups and illumination device
TW200639436A (en) Optical substrate and method of making
TW200707021A (en) Lighting apparatus, light control member used therein, and image display apparatus using the same
KR20140142059A (en) Illuminating apparatus and liquid crystal display having the same
TW200520261A (en) Lamp system
US20160054504A1 (en) Backlight, display panel and display device
TW200714984A (en) Liquid crystal display, surface light source device, and information device
US20110157870A1 (en) Flat light guide plate and backlight module using the same
JP6762166B2 (en) Lighting equipment, surface light source equipment, display equipment and electronic devices
US10025022B2 (en) Multicolor display device
CN207458813U (en) Backlight module and illuminated keyboard
CN104864363B (en) The light-guiding pillar of multiple LED light sources can be conducted
EP2469330A4 (en) Display device
CN107448909B (en) Backlight module
CN101916534A (en) Led display screen
CN205227061U (en) Backlight unit , display module assembly and display device
BR112012008049A2 (en) backlight device, display device and television receiver
US20130272024A1 (en) Diffusion structure and lighting device with such diffusion structure
CN104214672B (en) A kind of lens post and the illuminator using the lens post
CN205896862U (en) Secondary optical lens capable of combining square light distribution uniformly