JPWO2017043538A1 - ディスプレイ用カバー部材及びその製造方法 - Google Patents
ディスプレイ用カバー部材及びその製造方法 Download PDFInfo
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
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- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
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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
- 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
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- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C2217/77—Coatings having a rough surface
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/90—Other aspects of coatings
- C03C2217/94—Transparent conductive oxide layers [TCO] being part of a multilayer coating
- C03C2217/948—Layers comprising indium tin oxide [ITO]
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
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- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
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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
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Abstract
一方の主面が凹凸面により構成されており、前記凹凸面のJIS B0601−2013で規定される粗さ曲線要素の平均長さ(RSm)が1μm以上30μm以下であり、前記凹凸面の粗さ曲線の平均傾斜角(θ)とJIS B0601−2013で規定される粗さ曲線のクルトシス(Rku)の比、θ/Rkuが0.40°以上1.08°以下であることを特徴とするディスプレイ用カバー部材とする。
Description
平均傾斜角(θ)=tan−1Δa ……… (1)
Δa=(h1+h2+h3・・・+hn)/l ……… (2)
強化ガラス平板(日本電気硝子株式会社製強化ガラス平板、厚み0.7mm)の上に、酸化ケイ素成分を含む液をスプレー法により塗布し、乾燥させることにより、酸化ケイ素からなるコーティング膜を形成し、ディスプレイ用カバー部材を得た。詳細な条件は、表1、2に示す。
実施例1〜9及び比較例1〜4のディスプレイ用カバー部材の凹凸面におけるJIS B0601−2013で規定される表面性状パラメータ(RSm、θ、Rku、Ra、Rq、Rt、RzJIS、|Rsk|、Rdq)を、非接触表面・層断面形状計測システム VertScan2.0(菱化システム社製)を用いて測定した。結果を表1、2に示す。
JIS K7136−2000に基づいて、実施例1〜9及び比較例1〜4のディスプレイ用カバー部材のヘイズを、NDH−5000(日本電色社製)を用いて測定した。結果を表1、2に示す。
JIS Z8741−1997に基づいて、実施例1〜9及び比較例1〜4のディスプレイ用カバー部材における入射角60°のグロス値を、IG−331(堀場製作所社製)を用いて測定した。結果を表1、2に示す。
ディスプレイ用カバー部材の裏面にメンディングテープ(3M社製)を貼り付け、カバー部材凹凸面に蛍光灯を反射させた。その反射させた蛍光灯がぼやけて全く見えないものを◎、やや見えるもののぼやけているものを○、蛍光灯が見えるがややぼやけているものを△、蛍光灯がくっきり見えるものを×という判定を行った。結果を表1、2に示す。
画素ピッチ264ppiのディスプレイの上に実施例1〜9及び比較例1〜4のディスプレイ用カバー部材を配置し、ギラツキ度合いを観察した。その際、ギラツキが確認できなかったものを○、ギラツキが確認できたものを×という判定を行った。結果を表1、2に示す。
JIS K5600−5−4−1999に基づいて、実施例1〜9及び比較例1〜4のディスプレイ用カバー部材におけるコーティング膜の鉛筆硬度を、HEIDON表面性試験機を用いて、鉛筆角度45゜、引っ掻き速度100mm/分、荷重750gの条件で、三菱鉛筆HI−uniを用いて評価した。結果を表1、2に示す。
1a:第1の主面
1b:第2の主面
2:凹凸面
10:透光板
10a:第1の主面
10b:第2の主面
11:コーティング膜
Claims (14)
- 一方の主面が凹凸面により構成されており、前記凹凸面のJIS B0601−2013で規定される粗さ曲線要素の平均長さ(RSm)が1μm以上30μm以下であり、前記凹凸面の粗さ曲線の平均傾斜角(θ)と前記凹凸面のJIS B0601−2013で規定される粗さ曲線のクルトシス(Rku)の比、θ/Rkuが0.40°以上1.08°以下であることを特徴とするディスプレイ用カバー部材。
- 一方の主面が凹凸面により構成されており、前記凹凸面のJIS B0601−2013で規定される粗さ曲線要素の平均長さ(RSm)が1μm以上30μm以下であり、前記凹凸面の粗さ曲線の平均傾斜角(θ)が1.2°以上7°以下であり、前記凹凸面のJIS B0601−2013で規定される粗さ曲線のクルトシス(Rku)が2.2以上10以下であることを特徴とするディスプレイ用カバー部材。
- ヘイズが1%以上50%以下であることを特徴とする請求項1または2に記載のディスプレイ用カバー部材。
- 前記凹凸面のJIS B0601−2013で規定される算術平均粗さ(Ra)が0.04μm以上0.25μm以下であることを特徴とする請求項1〜3のいずれか一項に記載のディスプレイ用カバー部材。
- 前記凹凸面のJIS B0601−2013で規定される粗さ曲線のスキューネス(Rsk)の絶対値、|Rsk|が2以下であることを特徴とする請求項1〜4のいずれか一項に記載のディスプレイ用カバー部材。
- 透光板と、前記透光板の一主面の少なくとも一部を覆っており、前記凹凸面を構成しているコーティング膜とを備えることを特徴とする請求項1〜5のいずれか一項に記載のディスプレイ用カバー部材。
- 前記コーティング膜が前記透光板の一主面の全体を覆っていることを特徴とする請求項6に記載のディスプレイ用カバー部材。
- 前記コーティング膜が、無機膜により構成されていることを特徴とする請求項6または7に記載のディスプレイ用カバー部材。
- 前記コーティング膜のJIS K5600−5−4−1999で規定される鉛筆硬度が6H以上であることを特徴とする請求項6〜8のいずれか一項に記載のディスプレイ用カバー部材。
- 前記透光板が、ガラス板により構成されていることを特徴とする請求項6〜9のいずれか一項に記載のディスプレイ用カバー部材。
- 前記ガラス板が、強化ガラス板により構成されていることを特徴とする請求項10に記載のディスプレイ用カバー部材。
- 請求項1〜11のいずれか一項に記載のディスプレイ用カバー部材を製造する方法であって、
前記透光板の上に、スプレー法により前記凹凸面を構成するコーティング膜を形成することを特徴とするディスプレイ用カバー部材の製造方法。 - 前記透光板をガラス板により構成し、
前記コーティング膜を形成した後に、前記ガラス板を化学強化することを特徴とする請求項11に記載のディスプレイ用カバー部材の製造方法。 - 前記透光板として、強化ガラス板を用いることを特徴とする請求項11に記載のディスプレイ用カバー部材の製造方法。
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