JP2019511092A - 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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- 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
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- 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
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- 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
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Abstract
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 (12)
- 反射板と、
前記反射板の上部に備えられ、ビーズを含む接着層と、
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。
- 前記接着層は、マトリックス樹脂を含むものである、請求項1から7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8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、ビーズとマトリックス樹脂とを含み、無溶剤タイプである、請求項8または9に記載の導光板ユニット。
- 請求項1から10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11に記載のバックライトユニットを含む液晶表示装置。
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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 |
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US (1) | US10591663B2 (ja) |
EP (1) | EP3444659B1 (ja) |
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Cited By (1)
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JP2023018764A (ja) * | 2021-07-28 | 2023-02-09 | 日亜化学工業株式会社 | 面状光源 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
WO2003032073A1 (en) * | 2001-09-27 | 2003-04-17 | Tsujiden Co., Ltd. | Reflective film |
WO2012043396A1 (ja) * | 2010-09-27 | 2012-04-05 | 古河電気工業株式会社 | バックライトパネル、バックライトパネル用反射板 |
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US20190094455A1 (en) | 2019-03-28 |
CN108885370B (zh) | 2021-10-26 |
CN108885370A (zh) | 2018-11-23 |
KR20170118610A (ko) | 2017-10-25 |
EP3444659B1 (en) | 2021-06-02 |
EP3444659A4 (en) | 2019-02-27 |
KR102155405B1 (ko) | 2020-09-14 |
EP3444659A1 (en) | 2019-02-20 |
US10591663B2 (en) | 2020-03-17 |
JP6805458B2 (ja) | 2020-12-23 |
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