TWI576644B - A method of manufacturing a display device - Google Patents

A method of manufacturing a display device Download PDF

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TWI576644B
TWI576644B TW100102299A TW100102299A TWI576644B TW I576644 B TWI576644 B TW I576644B TW 100102299 A TW100102299 A TW 100102299A TW 100102299 A TW100102299 A TW 100102299A TW I576644 B TWI576644 B TW I576644B
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display device
glass substrate
glass
film
thickness
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TW100102299A
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TW201142447A (en
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Sakae Nishiyama
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Nsc Co Ltd
Shin-Etsu Polymer Co Ltd
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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
    • 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
    • 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K13/00—Etching, surface-brightening or pickling compositions
    • C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
    • C09K13/08—Etching, surface-brightening or pickling compositions containing an inorganic acid containing a fluorine compound
    • 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
    • G02F1/1343—Electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • 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
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/08—Glass having a rough surface
    • 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
    • C03C2218/00—Methods for coating glass
    • C03C2218/30—Aspects of methods for coating glass not covered above
    • C03C2218/31—Pre-treatment
    • 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
    • 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
    • G02F2202/02—Materials and properties organic material
    • G02F2202/022—Materials and properties organic material polymeric
    • 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
    • G02F2202/16—Materials and properties conductive
    • 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
    • G02F2202/22—Antistatic materials or arrangements

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Surface Treatment Of Glass (AREA)
  • Manufacturing Of Electric Cables (AREA)

Description

顯示裝置之製造方法
本發明係有關在玻璃基板之表面設置透光性導電膜之顯示裝置之製造方法。
液晶顯示裝置，係在由一對玻璃基板所構成之貼合玻璃基板之間，封入液晶而構成。然後，因為當玻璃基板帶靜電時，會對液晶顯示動作帶來不良影響，所以，藉由在玻璃基板表面設置導電膜以防止帶電，此為習知之構成(例如，專利文獻1)。
在此，作為導電膜，一般上，使用銦錫氧化物(ITO：Indium Tin Oxide)，透明電極則是利用濺鍍法而被成膜。
[先前技術文獻]
[專利文獻1]日本專利特開平8-241626
然而，問題在於，不只是構成ITO之銦為稀有金屬，還有限制採用濺鍍法，使目標材(ITO)產生不少廢材等等。
在此，針對露出於使用者之露出側玻璃基板之表面之防止帶電膜，並不要求如透明電極般低的電阻率，只要發揮能夠防止帶電之程度之導電性就足以解決。
本發明有鑑於上述問題點，其目的為提供一種在不是使用濺鍍法下，將導電膜設置於玻璃基板之顯示裝置之製造方法。
為了達成上述目的，關於本發明之顯示裝置之製造方法，其特徵係具有：使顯示裝置用玻璃基板之表面接觸蝕刻液，將玻璃表面之算術平均粗細Ra設定在0.7nm～70nm之化學研磨工程、與在化學研磨工程後之玻璃表面塗佈導電性聚合物(polymer)，形成400～1200Ω/sq之導電膜之成膜工程；將成膜工程後之玻璃基板之全光線透過率在板厚0.5mm之玻璃基板設定為87%以上。
本發明中，因為是在化學研磨工程，將玻璃表面之算術平均粗係Ra設定成0.7nm～70nm，所以能夠達成與導電性聚合物確實的接著性。相對於此，在Ra<0.7nm、玻璃表面過於平坦時，導電性聚合物會導致導電膜之接著性劣化，在密貼試驗，會發生因乙醇(ethanol)等而容易剝落之缺點。一方面，在Ra>70nm、玻璃表面過於粗糙時，無法維持作為顯示裝置之鮮明的顯示特性。
此外，本發明之成膜工程中，在玻璃表面塗佈導電性聚合物，形成400～1200Ω/sq之導電膜。在此，電阻率，並非體積電阻率(Volume Resistivity：Ω‧cm)，而是每單位面積(cm2)之表面電阻率(Surface Resistivity：Ω/sq)=體積電阻率/膜厚。在液晶顯示裝置等之透明電極之場合，被要求5～40Ω/sq左右之表面電阻值，而在防止帶電之用途方面，400～1200Ω/sq就足夠。只是，成膜工程後之玻璃基板，最好是設定在表面電阻率1000Ω/sq以下。
本發明中，成膜工程後之玻璃基板之HAZE率，以板厚0.5mm之玻璃基板加以評價，最好是設定在不到1.5%。在此，HAZE率，係意指擴散透過率/全光透過率×100，這是基於JISK 7136而被特定之數值。
一般而言，導電膜之膜厚愈厚，表面電阻率愈是降低而導電性愈是提高，另一方面，HAZE率則愈增加、透明性愈降低。於是，考慮該點，導電性聚合物之膜厚，最好是設定在100nm～250nm。
本發明之玻璃基板，以無鹼玻璃所構成較佳，更好地，應該是由矽鋁玻璃所構成。此外，作為導電性聚合物，適合使用聚乙炔(polyacetylene)、聚噻吩(polythiophene)類等等，更好地，應該是使用聚噻吩系導電性聚合物。
本發明之蝕刻液，只要讓玻璃表面適度地粗糙之組成而並無特別地限定，最好是含有0.5～3重量百分比之氟酸、0～10重量百分比之鹽酸、0～5重量百分比之硫酸所構成。
還有，本發明之顯示裝置，最好是液晶顯示裝置，導電性聚合物則是被成膜在貼合玻璃基板之露出側之表面。
根據以上說明之本發明，能夠提供一種在不是使用濺鍍法下，將導電膜形成於玻璃基板，且能夠較便宜地將防止帶電膜成膜。
以下，說明實施例，但是，並非特別限定本發明。
<試樣玻璃>
準備多數片100mm×100mm×0.6mm之矽鋁玻璃之玻璃板。
<作業程序>
(1)水洗各玻璃板，用蝕刻液化學研磨。又，作為蝕刻液，準備各種組成，研磨時間也可適宜地變更。
(2)水洗各玻璃板後，浸漬於IPA(異丙醇：isopropyl alcohol)進行置換處理，用乾燥器使之乾燥。
(3)將聚噻吩系導電性聚合物之SEPLEGYDA(Shin-Etsu Polymer Co.,Ltd.)塗佈於玻璃板之表面。使用磁道號(track number)No6、No8、No10之條碼，生成塗佈成120nm、160nm、200nm左右膜厚等之3群組。
(4)塗佈導電性聚合物後之乾燥，係用乾燥爐執行150℃ 10分鐘。
<結果評價>
(1)密貼試驗
針對已使之乾燥之玻璃板，使用透明膠帶(cellophane tape)實施剝離試驗，同時，檢證與各玻璃板化學研磨後之算數平均粗細Ra之關係。
結果確認，若算數平均粗細Ra=0.7nm～70nm左右，玻璃與導電膜之密貼性可被維持。
又，蝕刻液之組成、或研磨時間改變時，化學研磨後之玻璃板之算術平均粗細Ra會改變，一般而言，研磨時間愈長，或，氟酸濃度愈濃，算數平均粗細Ra會增加。
於是，考慮以上之傾向、與作業性，發現：使用由0.5～3重量百分比之氟酸、0～10重量百分比之鹽酸、0～5重量百分比之硫酸、水所組成之蝕刻液，在數分鐘(1～2分鐘)的化學研磨工程，將玻璃表面蝕刻5μm(單面2.5μm)左右，這是最佳的。
(2)光學特性
於是，針對經過被設定成以上條件之化學研磨工程之3群組玻璃板，全光線透過率之透過率、表面電阻率、與HAZE率之計測如以下。在此，透過率，係使用分光色彩計SD-5000(日本電色工業)，並基於JIS K 7361-1加以計測。此外，HAZE率，係使用濁度計NDH5000(日本電色工業)，並基於JIS K 7136加以計測。表面電阻，係使用LORESTAMCP-T250(三菱化學)，並基於JIS K 7194加以計測。

Claims (5)

  1. 一種顯示裝置之製造方法，其特徵係具有：使顯示裝置用之玻璃基板之表面接觸蝕刻液，將玻璃表面之算術平均粗細Ra設定在0.7nm~70nm之化學研磨工程、與在化學研磨工程後之玻璃表面塗佈導電性聚合物(polymer)，形成400~1200Ω/sq之導電膜之成膜工程；將成膜工程後之玻璃基板之全光線透過率在板厚0.6mm之玻璃基板設定為87%以上；前述玻璃基板係由矽鋁玻璃所構成；使用聚噻吩(polythiophene)系導電性聚合物。
  2. 如申請專利範圍第1項記載之顯示裝置之製造方法，其中，成膜工程後之玻璃基板之HAZE率，在板厚0.6mm之玻璃基板係不到1.5%。
  3. 如申請專利範圍第1或2項記載之顯示裝置之製造方法，其中，前述導電性聚合物之膜厚係100nm~250nm。
  4. 如申請專利範圍第1或2項記載之顯示裝置之製造方法，其中，前述蝕刻液係由含有0.5~3重量百分比之氟酸、0~10重量百分比之鹽酸、0~5重量百分比之硫酸所構成。
  5. 如申請專利範圍第1或2項記載之顯示裝置之製造方法，其中，前述顯示裝置係液晶顯示裝置；前述導電 性聚合物係被成膜在貼合玻璃基板之露出表面。
TW100102299A 2010-01-25 2011-01-21 A method of manufacturing a display device TWI576644B (zh)

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JP2010013355A JP5431186B2 (ja) 2010-01-25 2010-01-25 表示装置の製造方法

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WO2013021854A1 (ja) * 2011-08-05 2013-02-14 Hoya株式会社 携帯機器用カバーガラス及びその製造方法
WO2013031547A1 (ja) * 2011-08-29 2013-03-07 旭硝子株式会社 ガラス板、およびガラス板の製造方法
JP6295957B2 (ja) * 2012-10-17 2018-03-20 旭硝子株式会社 導電性薄膜付きガラス基板の製造方法
JP6519475B2 (ja) * 2013-08-09 2019-05-29 日本ケミコン株式会社 色素増感太陽電池
GB201403223D0 (en) 2014-02-24 2014-04-09 Pilkington Group Ltd Coated glazing
JP2017071516A (ja) * 2015-10-05 2017-04-13 ＡｖａｎＳｔｒａｔｅ株式会社 ガラス基板の製造方法
JP6910854B2 (ja) * 2017-06-02 2021-07-28 信越ポリマー株式会社 導電性高分子分散液、導電性基板及びその製造方法

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