JP6805458B2 - 導光板ユニット、これを備えたバックライトユニットおよび液晶表示装置 - Google Patents
導光板ユニット、これを備えたバックライトユニットおよび液晶表示装置 Download PDFInfo
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- JP6805458B2 JP6805458B2 JP2018547462A JP2018547462A JP6805458B2 JP 6805458 B2 JP6805458 B2 JP 6805458B2 JP 2018547462 A JP2018547462 A JP 2018547462A JP 2018547462 A JP2018547462 A JP 2018547462A JP 6805458 B2 JP6805458 B2 JP 6805458B2
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- 239000012790 adhesive layer Substances 0.000 claims description 58
- 239000011324 bead Substances 0.000 claims description 42
- 239000011347 resin Substances 0.000 claims description 26
- 229920005989 resin Polymers 0.000 claims description 26
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 19
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 238000000149 argon plasma sintering Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
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- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 26
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- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- G—PHYSICS
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- 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
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- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
- C09J125/02—Homopolymers or copolymers of hydrocarbons
- C09J125/04—Homopolymers or copolymers of styrene
- C09J125/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
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- 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
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- 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
- G02B6/0055—Reflecting element, sheet or layer
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- G—PHYSICS
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- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
-
- 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
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- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
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- 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
- G02B6/0065—Manufacturing aspects; Material aspects
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- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/34—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector
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- 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
- G02F2202/28—Adhesive materials or arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Description
20:ビーズ
30:接着層
40:導光板
50:光源
60:パターン
70:液晶パネル
a:入光部
b:反入光部
マトリックス樹脂としてUV接着剤を、ビーズとしてポリメチルメタクリレート(PMMA)を、光散乱粒子としてTiO2を用いて接着層を形成するための組成物を用意し、前記組成物を導光板上にスクリーンプリンティングした。
UV接着剤対比5μmの大きさのポリメチルメタクリレート(PMMA)粒子1phr、200nm水準の光散乱粒子TiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤対比5μmの大きさのポリメチルメタクリレート(PMMA)粒子1phrを、導光板上にスクリーンプリンティングした。
UV接着剤対比5μmの大きさのポリメチルメタクリレート(PMMA)粒子5phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤対比7μmの大きさのポリスチレン(PS)粒子3phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤対比15μmの大きさのポリメチルメタクリレート(PMMA)粒子0.5phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤対比28μmの大きさのポリメチルメタクリレート(PMMA)粒子0.5phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤がビーズを含まないことを除けば、実施例1と同様の方法で製造された。
UV接着剤対比3μmの大きさのポリスチレン(PS)粒子2phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
UV接着剤対比40μmの大きさのポリメチルメタクリレート(PMMA)粒子0.5phr、200nm水準のTiO2 1phrを配合して、導光板上にスクリーンプリンティングした。
Claims (11)
- 反射板と、
前記反射板の上部に備えられ、ビーズとマトリックス樹脂と光散乱粒子とを含む接着層と、
前記接着層の上部に備えられる導光板とを含み、
前記ビーズは、大きさが5μm〜30μmであり、
前記ビーズの含有量は、前記マトリックス樹脂対比1phr〜5phrであり、
前記光散乱粒子は、TiO 2 またはSiO 2 である、導光板ユニット。 - 前記ビーズは、ポリメチルメタクリレート、ポリスチレン、およびこれらの共重合体のうちの少なくとも1つを含む有機ビーズである、請求項1に記載の導光板ユニット。
- 前記接着層は、パターン形態で備えられるものである、請求項1または2に記載の導光板ユニット。
- 前記パターンは、ドット状である、請求項3に記載の導光板ユニット。
- 前記パターンは、大きさが50μm〜1000μmである、請求項3または4に記載の導光板ユニット。
- 前記パターン間の間隔が100μm〜3000μmである、請求項3から5のいずれか一項に記載の導光板ユニット。
- 前記接着層は、厚さが5μm〜30μmである、請求項1から6のいずれか一項に記載の導光板ユニット。
- 前記マトリックス樹脂は、ウレタン系樹脂、エポキシ樹脂、アクリル系樹脂、シリコーン系樹脂、ポリシロキサン樹脂、およびラジカル重合性化合物のうちの少なくとも1つを含むものである、請求項1に記載の導光板ユニット。
- 前記接着層を形成する組成物は、無溶剤タイプである、請求項1に記載の導光板ユニット。
- 請求項1から9のいずれか一項に記載の導光板ユニットを含むバックライトユニット。
- 請求項10に記載のバックライトユニットを含む液晶表示装置。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20160046470 | 2016-04-15 | ||
KR10-2016-0046470 | 2016-04-15 | ||
KR1020170047317A KR102155405B1 (ko) | 2016-04-15 | 2017-04-12 | 도광판 유닛, 이를 구비한 백라이트 유닛 및 액정표시장치 |
KR10-2017-0047317 | 2017-04-12 | ||
PCT/KR2017/004004 WO2017179923A1 (ko) | 2016-04-15 | 2017-04-13 | 도광판 유닛, 이를 구비한 백라이트 유닛 및 액정표시장치 |
Publications (2)
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JP2019511092A JP2019511092A (ja) | 2019-04-18 |
JP6805458B2 true JP6805458B2 (ja) | 2020-12-23 |
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JP2018547462A Active JP6805458B2 (ja) | 2016-04-15 | 2017-04-13 | 導光板ユニット、これを備えたバックライトユニットおよび液晶表示装置 |
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Country | Link |
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US (1) | US10591663B2 (ja) |
EP (1) | EP3444659B1 (ja) |
JP (1) | JP6805458B2 (ja) |
KR (1) | KR102155405B1 (ja) |
CN (1) | CN108885370B (ja) |
Families Citing this family (1)
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JP7422336B2 (ja) * | 2021-07-28 | 2024-01-26 | 日亜化学工業株式会社 | 面状光源 |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09202871A (ja) | 1996-01-25 | 1997-08-05 | Lintec Corp | 面光源体用粘着剤及びそれを用いた面光源体 |
JPH1021720A (ja) * | 1996-06-27 | 1998-01-23 | Nec Corp | バックライト装置 |
JPH10206644A (ja) * | 1997-01-21 | 1998-08-07 | Minebea Co Ltd | 面状光源装置 |
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- 2017-04-13 CN CN201780021192.6A patent/CN108885370B/zh active Active
- 2017-04-13 EP EP17782678.1A patent/EP3444659B1/en active Active
- 2017-04-13 US US16/082,485 patent/US10591663B2/en active Active
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US10591663B2 (en) | 2020-03-17 |
CN108885370B (zh) | 2021-10-26 |
EP3444659A1 (en) | 2019-02-20 |
KR102155405B1 (ko) | 2020-09-14 |
EP3444659B1 (en) | 2021-06-02 |
EP3444659A4 (en) | 2019-02-27 |
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KR20170118610A (ko) | 2017-10-25 |
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