WO2010005205A3 - High-diffusion condenser sheet and backlight assembly using same - Google Patents

High-diffusion condenser sheet and backlight assembly using same Download PDF

Info

Publication number
WO2010005205A3
WO2010005205A3 PCT/KR2009/003607 KR2009003607W WO2010005205A3 WO 2010005205 A3 WO2010005205 A3 WO 2010005205A3 KR 2009003607 W KR2009003607 W KR 2009003607W WO 2010005205 A3 WO2010005205 A3 WO 2010005205A3
Authority
WO
WIPO (PCT)
Prior art keywords
same
condenser sheet
backlight assembly
diffusion
diffusion condenser
Prior art date
Application number
PCT/KR2009/003607
Other languages
French (fr)
Korean (ko)
Other versions
WO2010005205A2 (en
Inventor
백승철
김경태
김병묵
이수정
최미정
전진혁
국민철
Original Assignee
주식회사 두산
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 주식회사 두산 filed Critical 주식회사 두산
Publication of WO2010005205A2 publication Critical patent/WO2010005205A2/en
Publication of WO2010005205A3 publication Critical patent/WO2010005205A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

The present invention relates to a high-diffusion condenser sheet for improving the brightness and uniformity of light emitted by a backlight, and to a backlight assembly using same. The high-diffusion condenser sheet of the present invention includes a base layer constituting a base, and a pattern unit having lens-shaped protruding surfaces arrayed at random on the base layer, wherein each of the protruding surfaces is formed into different sizes with an average diameter of 71㎛ to 120㎛.
PCT/KR2009/003607 2008-07-09 2009-07-02 High-diffusion condenser sheet and backlight assembly using same WO2010005205A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0066748 2008-07-09
KR1020080066748A KR20100006501A (en) 2008-07-09 2008-07-09 High diffusion and condensing lens sheet and backlight assembly using the same

Publications (2)

Publication Number Publication Date
WO2010005205A2 WO2010005205A2 (en) 2010-01-14
WO2010005205A3 true WO2010005205A3 (en) 2010-04-22

Family

ID=41507558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/003607 WO2010005205A2 (en) 2008-07-09 2009-07-02 High-diffusion condenser sheet and backlight assembly using same

Country Status (2)

Country Link
KR (1) KR20100006501A (en)
WO (1) WO2010005205A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6260819B2 (en) * 2014-02-20 2018-01-17 カシオ計算機株式会社 Light source device and projector
JP6826433B2 (en) * 2016-12-28 2021-02-03 デクセリアルズ株式会社 Reflective diffuser, display device, projection device and lighting device
CN111929978A (en) * 2020-10-15 2020-11-13 成都菲斯特科技有限公司 Projection screen and projection system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007064032A1 (en) * 2005-12-01 2007-06-07 Fujifilm Corporation Optical sheet for display, and manufacturing method and apparatus therefor
KR100817838B1 (en) * 2006-08-24 2008-03-31 희성전자 주식회사 LGP structure of edge-type Backlight unit
KR20080060406A (en) * 2006-12-27 2008-07-02 삼성전자주식회사 Optical sheet and display apparatus having the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007064032A1 (en) * 2005-12-01 2007-06-07 Fujifilm Corporation Optical sheet for display, and manufacturing method and apparatus therefor
KR100817838B1 (en) * 2006-08-24 2008-03-31 희성전자 주식회사 LGP structure of edge-type Backlight unit
KR20080060406A (en) * 2006-12-27 2008-07-02 삼성전자주식회사 Optical sheet and display apparatus having the same

Also Published As

Publication number Publication date
WO2010005205A2 (en) 2010-01-14
KR20100006501A (en) 2010-01-19

Similar Documents

Publication Publication Date Title
TW200742911A (en) Backlight module and application thereof
WO2007073496A3 (en) Lighting device
EP4243094A3 (en) Light emitting diode
WO2009123936A3 (en) Light emitting diodes with smooth surface for reflective electrode
WO2008114882A1 (en) Light box
WO2010027240A3 (en) Optical sheet and composite sheet with moire fringe, and backlight assembly having the same
EP2206165B8 (en) Robust light emitting diode structure with removed substrate and added optical element, method of manufacturing the same
TW200636359A (en) Light-emitting apparatus having a plurality of overlapping panels forming recesses from which light is emitted
EP2503607A3 (en) Light emitting device and method for manufacturing the same
WO2009038171A1 (en) Organic electroluminescent display and method for manufacturing the same
TW200620708A (en) Semiconductor light-emitting device, lighting module, lighting device and method for manufacturing semiconductor light-emitting device
WO2012134200A3 (en) Substrate for organic electrode device
TW200739211A (en) Method for manufacture of liquid crystal cell substrates, liquid crystal cell substrates, and liquid crystal device
WO2012111915A3 (en) Display panel
EP3109908A3 (en) Light emitting device and manufacturing method thereof
WO2008027314A3 (en) Booster optic
TW200630714A (en) Optical unit, method of manufacturing the same, backlight assembly having the same and display device having the same
WO2006071333A3 (en) Odor control substrates
EP2541627A3 (en) Light emitting device and lighting system with the same
TW200801574A (en) Optical laminated body
WO2010005205A3 (en) High-diffusion condenser sheet and backlight assembly using same
WO2013002596A3 (en) Optical plate and illuminating member using the same
EP2157473A3 (en) Backlight assembly with improved brightness uniformity and display apparatus having the same
WO2006000986A3 (en) Led with improved light emittance profile
BR112012013569A8 (en) PROCESS OF MANUFACTURING A CORD INTENDED FOR MAKING A TIRE

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09794611

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09794611

Country of ref document: EP

Kind code of ref document: A2