KR100744842B1 - 액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법 - Google Patents

액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법 Download PDF

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Publication number
KR100744842B1
KR100744842B1 KR1020060042044A KR20060042044A KR100744842B1 KR 100744842 B1 KR100744842 B1 KR 100744842B1 KR 1020060042044 A KR1020060042044 A KR 1020060042044A KR 20060042044 A KR20060042044 A KR 20060042044A KR 100744842 B1 KR100744842 B1 KR 100744842B1
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KR
South Korea
Prior art keywords
light diffusion
light
diffusion sheet
liquid crystal
crystal display
Prior art date
Application number
KR1020060042044A
Other languages
English (en)
Korean (ko)
Inventor
김광원
이홍수
이진우
송지선
최용준
변경아
Original Assignee
주식회사 상보
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 상보 filed Critical 주식회사 상보
Priority to KR1020060042044A priority Critical patent/KR100744842B1/ko
Priority to TW095143628A priority patent/TWI343870B/zh
Priority to CNB2006101608359A priority patent/CN100460953C/zh
Application granted granted Critical
Publication of KR100744842B1 publication Critical patent/KR100744842B1/ko

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    • 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
    • G02B5/0226—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 having particles on the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • 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
    • G02B5/0231—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 microprismatic or micropyramidal shape
    • 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
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • 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
    • 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
    • G02B6/0051—Diffusing 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
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
KR1020060042044A 2006-05-10 2006-05-10 액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법 KR100744842B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020060042044A KR100744842B1 (ko) 2006-05-10 2006-05-10 액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법
TW095143628A TWI343870B (en) 2006-05-10 2006-11-24 High brightness light diffusion sheet for backlight unit of liquid crystal display and method for manufacturing the same
CNB2006101608359A CN100460953C (zh) 2006-05-10 2006-11-30 液晶显示器背光单元的光漫射板及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060042044A KR100744842B1 (ko) 2006-05-10 2006-05-10 액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법

Publications (1)

Publication Number Publication Date
KR100744842B1 true KR100744842B1 (ko) 2007-08-01

Family

ID=38601549

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060042044A KR100744842B1 (ko) 2006-05-10 2006-05-10 액정 디스플레이의 백라이트 유니트용 고휘도 광확산 시트및 그 제조방법

Country Status (3)

Country Link
KR (1) KR100744842B1 (zh)
CN (1) CN100460953C (zh)
TW (1) TWI343870B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8882327B2 (en) * 2012-09-28 2014-11-11 Skc Haas Display Films Co., Ltd. Composite light guide plate
JP7383448B2 (ja) * 2019-10-18 2023-11-20 リンテック株式会社 粘着剤、粘着シート、バックライトユニットおよび表示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020069110A (ko) * 2001-02-22 2002-08-29 케이와 인코포레이티드 광확산 시트 및 이를 사용한 백라이트 유니트
JP2004198707A (ja) 2002-12-18 2004-07-15 Keiwa Inc 光学シート及びこれを用いたバックライトユニット
US20050068628A1 (en) 2003-09-30 2005-03-31 Keiwa Inc. Optical sheet and backlight unit using the same
JP2005107553A (ja) 2005-01-06 2005-04-21 Minoru Yoshida 光拡散シート及びこれを用いたバックライトユニット

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002072900A (ja) * 2000-08-31 2002-03-12 Kimoto & Co Ltd バックライトユニット
US6908202B2 (en) * 2002-10-03 2005-06-21 General Electric Company Bulk diffuser for flat panel display
JP2004226604A (ja) * 2003-01-22 2004-08-12 Sekisui Plastics Co Ltd 合成樹脂粒子、光拡散板、液晶表示装置用バックライトユニット及び液晶表示装置
US7314652B2 (en) * 2003-02-28 2008-01-01 General Electric Company Diffuser for flat panel display
JP2005326774A (ja) * 2004-05-17 2005-11-24 Soken Chem & Eng Co Ltd 光拡散シートおよびこれに用いる樹脂組成物
KR20060016518A (ko) * 2004-08-18 2006-02-22 삼성전자주식회사 표시장치
JP4029299B2 (ja) * 2004-09-06 2008-01-09 日本ゼオン株式会社 光拡散性樹脂組成物、及び光拡散成形品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020069110A (ko) * 2001-02-22 2002-08-29 케이와 인코포레이티드 광확산 시트 및 이를 사용한 백라이트 유니트
JP2004198707A (ja) 2002-12-18 2004-07-15 Keiwa Inc 光学シート及びこれを用いたバックライトユニット
US20050068628A1 (en) 2003-09-30 2005-03-31 Keiwa Inc. Optical sheet and backlight unit using the same
JP2005107553A (ja) 2005-01-06 2005-04-21 Minoru Yoshida 光拡散シート及びこれを用いたバックライトユニット

Also Published As

Publication number Publication date
CN101071222A (zh) 2007-11-14
TW200742669A (en) 2007-11-16
CN100460953C (zh) 2009-02-11
TWI343870B (en) 2011-06-21

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