WO2014181790A1 - ガラスフィルム積層体 - Google Patents

ガラスフィルム積層体 Download PDF

Info

Publication number
WO2014181790A1
WO2014181790A1 PCT/JP2014/062230 JP2014062230W WO2014181790A1 WO 2014181790 A1 WO2014181790 A1 WO 2014181790A1 JP 2014062230 W JP2014062230 W JP 2014062230W WO 2014181790 A1 WO2014181790 A1 WO 2014181790A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
glass film
protrusion
substrate
liquid crystal
Prior art date
Application number
PCT/JP2014/062230
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
保弘 松本
隆雄 岡
Original Assignee
日本電気硝子株式会社
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 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to KR1020157022346A priority Critical patent/KR102156555B1/ko
Priority to JP2014521872A priority patent/JP6237623B2/ja
Priority to CN201480023731.6A priority patent/CN105143136B/zh
Publication of WO2014181790A1 publication Critical patent/WO2014181790A1/ja

Links

Images

Classifications

    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • 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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing

Definitions

  • the present invention relates to a glass film laminate in which a flexible glass film having a thickness of 200 ⁇ m or less and a supporting glass that supports the glass film are overlapped.
  • the liquid crystal panel includes two glass substrates: a TFT substrate on which a thin film transistor and a transparent electrode are patterned, and a color filter substrate on which BM, RGB, and photo spacers are patterned. Both substrates are bonded to each other with a sealing material applied along these peripheral portions, and a liquid crystal material is sealed in a region surrounded by the sealing material between the substrates.
  • the cell gap which is the distance between the substrates, is required to be maintained uniformly with a predetermined dimension.
  • An allowable value of the protrusion dimension of the protrusion is generally less than 0.3 ⁇ m, and if it exceeds this, display unevenness such as a spot or a black spot occurs in the image when the liquid crystal panel is turned on.
  • a foreign substance such as glass powder adheres to the surface of the glass to form a protrusion, it becomes difficult to form a circuit on the surface of the glass substrate, resulting in a failure. Therefore, a defective substrate on which a protrusion exceeding the allowable value is formed cannot be used as a glass substrate for a product.
  • the glass film laminate is formed of a mating surface, which is a surface on the side in contact with each other, of each of the flexible glass film having a reduced thickness (for example, a plate thickness of 200 ⁇ m) and the supporting glass that supports the glass film.
  • the surface roughness Ra is set to 2.0 nm or less, and both the mating surfaces are brought into surface contact with each other so that the glass film and the supporting glass are superposed (see Patent Document 1).
  • this glass film laminate by overlapping with the supporting glass, the pliable property of the glass film is temporarily eliminated, and both the glasses are appropriately adhered and behave as an integral one. For this reason, the handling of the glass film in the manufacturing process of a plate glass product becomes very simple. Furthermore, it is not necessary to use a binder such as an adhesive to bring the two glasses into close contact with each other, and the glass film and the supporting glass can be easily peeled at a desired timing.
  • the following is mentioned as one of the aspects which manufacture a plate glass product using the glass film laminated body which used the bad board
  • a part of the liquid crystal panel manufactured according to such an embodiment is a TFT substrate or a color filter substrate after being peeled from the substrate due to a protrusion exceeding an allowable value formed on a defective substrate.
  • the convex portion may remain at the portion overlapping the protrusion.
  • This invention made
  • formed in view of the said situation provides the glass film laminated body suitable for manufacture of the said liquid crystal panel, when manufacturing a liquid crystal panel using the glass film laminated body which used the defective glass substrate as support glass. This is a technical issue.
  • the present invention devised to solve the above problems is a surface on the side in contact with each other of a flexible glass film having a thickness of 200 ⁇ m or less and a supporting glass that supports the glass film.
  • a glass film laminate in which the glass film and the supporting glass are superposed by bringing the surface roughness Ra of the mating surface to 2.0 nm or less and bringing the both mating surfaces into surface contact, the mating surface of the supporting glass A protrusion is formed, and the protrusion dimension from the mating surface of the protrusion is characterized by 0.3 to 5 ⁇ m.
  • surface roughness Ra of the mating surface refers to the value of Ra when the surface roughness is measured by excluding the portion where the protrusion is formed on the mating surface.
  • projection dimension refers to the largest of the projection dimensions of each projection when a plurality of projections are formed on the mating surface.
  • the supporting glass is preferably a recycled product.
  • the glass film laminate of the present invention it is possible to suitably manufacture a liquid crystal panel.
  • FIG. 1a It is a vertical side view which shows the glass film laminated body which concerns on embodiment of this invention. It is the enlarged view which expanded the A section in FIG. 1a, Comprising: It is a figure which shows the vicinity of the permite
  • adopted as a glass substrate for liquid crystal panels is used as support glass of a glass film laminated body.
  • the glass film laminate according to the present invention is not limited to such a configuration.
  • FIG. 1a is a longitudinal side view showing a glass film laminate according to an embodiment of the present invention.
  • the glass film laminate 1 includes the surfaces of the mating surfaces 3a and 2a that are the surfaces of the glass film 3 and the supporting glass 2 that supports the glass film 3 that are in contact with each other.
  • the supporting glass 2 and the glass film 3 are superposed by setting the roughness Ra to 2.0 nm or less and bringing the mating surfaces 3a and 2a into surface contact.
  • the support glass 2 and the glass film 3 can be made of various materials such as soda lime glass and alkali-free glass, but alkali-free glass is used from the viewpoint of strength and durability. Is preferred.
  • the support glass 2 is a mating surface that becomes a surface in contact with the glass film 3 2a is formed with a projection 2b having a projection dimension H from the mating surface 2a of 0.3 to 5 ⁇ m, which exceeds an allowable value, and cannot be used as a glass substrate for a liquid crystal panel ( TFT substrate or color filter substrate).
  • the protrusion 2b is formed by the bulging of the mating surface 2a by the bubbles B mixed in the support glass 2.
  • the surface roughness Ra in the mating surface 2a is a value of Ra when the surface roughness (arithmetic average roughness) is measured excluding the portion where the protrusion 2b is formed.
  • this support glass 2 is a product for recycling, and is repeatedly used for the production of the glass film laminate 1. Further, in the present embodiment, the supporting glass 2 having a thickness of 0.3 to 0.7 mm is used.
  • the protrusion 2b is formed due to the bubbles B mixed in the support glass 2, but in addition to this, foreign matters mixed in the support glass 2 and FIGS. 2a and 2b.
  • the protrusion 2b may be formed due to the deposit 8 (for example, glass powder) adhering to the mating surface 2a.
  • the deposit 8 for example, glass powder
  • FIG. 1a only one protrusion 2b is shown for convenience of explanation, but in practice, a large number of protrusions 2b are usually formed on the mating surface 2a.
  • the number of protrusions 2b formed per 10 cm 2 is preferably 2 or less, and most preferably one.
  • the maximum width of the protrusion 2b is preferably in the range of 10 ⁇ m to 100 ⁇ m.
  • the protrusion dimension H from the mating surface 2a of the protrusion 2b is preferably in the range of 0.3 ⁇ m to 2.5 ⁇ m.
  • the glass film 3 has a thickness of 200 ⁇ m or less and has flexibility.
  • the glass film 3 superimposed on the supporting glass 2 includes (1) a protrusion 2b formed on the mating surface 2a of the supporting glass 2, and (2) the vicinity of the protrusion 2b shown in FIGS. 1b and 1c.
  • the convex portion 3b is formed by both (1) and (2) with the bubble (not shown) that has entered between the mating surfaces 2a and 3a.
  • the surface roughness Ra of the mating surfaces 3a and 2a that are the surfaces in contact with each other is 2.0 nm or less.
  • an appropriate adhesion force is generated between the two glasses 2 and 3.
  • This adhesion force is assumed to be generated due to hydrogen bonding.
  • the manufacturing process and operation in the case of manufacturing a liquid crystal panel using the glass film laminate 1 will be described with reference to the accompanying drawings.
  • the glass film 3 with which the said glass film laminated body 1 was equipped is a TFT substrate.
  • a glass film laminate 5 in which a supporting glass 6 and a color filter substrate 7 as a glass film are newly laminated as shown in FIG. Each of the support glass 6 and the color filter substrate 7 has a surface roughness Ra of the mating surfaces 6a and 7a that are the surfaces in contact with each other, like the support glass 2 and the TFT substrate 3 in the glass film laminate 1. 2.0 nm or less, and the support glass 6 and the color filter substrate 7 are in close contact with each other.
  • the support glass 6 is a defective glass substrate that cannot be used as a product for a liquid crystal panel, like the support glass 1, and the projection 6 b formed on the mating surface 6 a of the support glass 6.
  • the protruding dimension is 0.3 to 5 ⁇ m.
  • the support glass 6 is a recycled product.
  • the two glass film laminates 1 and 5 are bonded together with a sealing material 4 (for example, an ultraviolet curable resin) interposed therebetween so that the TFT substrate 3 and the color filter substrate 7 face each other.
  • the sealing material 4 is applied along the peripheral edges of both the substrates 3 and 7, and a liquid crystal material L is enclosed between the TFT substrate 3 and the color filter substrate 7 in a region surrounded by the sealing material 4. Is done.
  • the TFT substrate 3 in the glass film laminate 1 is formed with a convex portion 3b due to the protrusion 2b formed on the mating surface 2a of the supporting glass 2 (defective glass substrate).
  • the color filter substrate 7 in the glass film laminate 5 is also formed with a convex portion 7b due to the protrusion 6b formed on the mating surface 6a of the support glass 6 (defective substrate).
  • the cell gap S which is the distance between the TFT substrate 3 and the color filter substrate 7, is locally uneven.
  • the liquid crystal panel when a liquid crystal panel is manufactured using the glass film laminates 1 and 5, it is avoided that display unevenness such as a spot or a black spot occurs in an image when the completed liquid crystal panel is turned on. In addition, since the deterioration of the quality of the liquid crystal panel can be prevented, the liquid crystal panel can be preferably manufactured.
  • the tip (top) of the protrusion 2b tends to have a sharp shape, and the protrusion 2b and the TFT substrate 3 are likely to be in point contact.
  • the number of protrusions 2b formed per 10 cm 2 on the mating surface 2a is two or less, the number of protrusions 3b formed on the TFT substrate 3 is reduced.
  • the maximum width of the protrusion 2b is in the range of 10 ⁇ m to 100 ⁇ m, the contact area between the protrusion 2b and the TFT substrate 3 is sufficiently small. Therefore, in these cases, it is possible to more suitably prevent the protrusions 3b from remaining in the TFT substrate 3 after being peeled from the support glass 2.
  • the protrusion dimension H is 0.3 ⁇ m to If it is in the range of 2.5 ⁇ m, it is possible to more effectively avoid the remaining protrusions 3b.
  • the thickness of the glass film 3 exceeds 100 micrometers, there exists a possibility that the convex part 3b may remain in the TFT substrate 3 after making it peel from the support glass 2.
  • the thickness of the glass film 3 is 100 ⁇ m or less, it is possible to adopt a glass having a small protrusion dimension H as the support glass 2 and to suppress the protrusion of the protrusion 3 b overlapping the protrusion 2 b to be small. preferable.
  • the supporting glasses 2 and 6 are recycled products, as long as these supporting glasses 2 and 6 are recycled, the glass film laminates 1 and 5 suitable for manufacturing a liquid crystal panel are provided. It becomes possible to produce it repeatedly. In addition, by using it for recycling, an increase in manufacturing cost can be avoided.
  • the glass film laminate according to the present invention is not limited to the configuration described in the above embodiment.
  • the supporting glass in which protrusions exceeding the allowable value projection dimension is 0.3 to 5 ⁇ m
  • the present invention is not limited to this. Only one of the glass film laminate on the TFT substrate side and the glass film laminate on the color filter substrate side has a protrusion exceeding the allowable value as the supporting glass (however, from the mating surface). It is also possible to use a projection having a protrusion dimension of 0.3 to 5 ⁇ m.
  • a defective glass substrate that cannot be used for a liquid crystal panel is used as a supporting glass, but this is not a limitation, and by forming protrusions, various displays, sensors, A glass substrate that cannot be used for a cover or the like may be used as the supporting glass.
  • a glass film laminate using a defective glass substrate as a supporting glass was used and described in the above embodiment under four conditions (three examples and one comparative example).
  • a liquid crystal panel was produced in the same manner as in the manufacturing process, and the quality of the produced liquid crystal panel was verified.
  • the implementation conditions for verification are shown below.
  • the glass film used in each condition (in this verification, TFT substrate) and the supporting glass (defective glass substrate) are non-alkali glass (product name: OA-10G) manufactured by Nippon Electric Glass Co., Ltd.
  • the size (horizontal dimension, vertical dimension, thickness dimension) and the projecting dimension of the projection formed on the mating surface of the supporting glass from the mating surface are as shown in Table 1 below.
  • the surface roughness Ra on the mating surface of the glass film and the supporting glass is determined by using the concentration of the etching solution when the glass formed by the overflow down draw method is used unpolished or when polishing and chemical etching are performed. It was controlled by adjusting the temperature and processing time.
  • the surface roughness Ra For the measurement of the surface roughness Ra, a scanning probe microscope (NanoNaviII / S-image) manufactured by SII was used, scanning area: 2000 nm, scanning frequency: 0.95 Hz, scanning data number X (lateral direction): 256 , Y (longitudinal direction): Measurement was performed under the condition of 256. In each of the supporting glass and the glass film, the surface roughness Ra was measured at a total of two points, that is, one point at the center and one point at the corner, and the average value was defined as the surface roughness Ra.
  • the protrusion dimensions of the protrusions in Comparative Example 1 and Examples 1 to 3 are 5 ⁇ m. It is considered that the conditions are as follows.
  • liquid crystal panel can be suitably manufactured according to the glass film laminate of the present invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Liquid Crystal (AREA)
PCT/JP2014/062230 2013-05-07 2014-05-07 ガラスフィルム積層体 WO2014181790A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020157022346A KR102156555B1 (ko) 2013-05-07 2014-05-07 유리 필름 적층체
JP2014521872A JP6237623B2 (ja) 2013-05-07 2014-05-07 ガラスフィルム積層体
CN201480023731.6A CN105143136B (zh) 2013-05-07 2014-05-07 玻璃膜层叠体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013097532 2013-05-07
JP2013-097532 2013-05-07

Publications (1)

Publication Number Publication Date
WO2014181790A1 true WO2014181790A1 (ja) 2014-11-13

Family

ID=51867269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/062230 WO2014181790A1 (ja) 2013-05-07 2014-05-07 ガラスフィルム積層体

Country Status (5)

Country Link
JP (1) JP6237623B2 (ko)
KR (1) KR102156555B1 (ko)
CN (1) CN105143136B (ko)
TW (1) TWI594881B (ko)
WO (1) WO2014181790A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107614452A (zh) * 2015-05-28 2018-01-19 旭硝子株式会社 玻璃基板及层叠基板

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010215436A (ja) * 2009-03-13 2010-09-30 Nippon Electric Glass Co Ltd ガラスフィルム積層体
WO2011001946A1 (ja) * 2009-07-03 2011-01-06 日本電気硝子株式会社 ガラスフィルム積層体
WO2011086991A1 (ja) * 2010-01-12 2011-07-21 日本電気硝子株式会社 ガラスフィルム積層体及びその製造方法並びにガラスフィルムの製造方法
JP2011184284A (ja) * 2009-09-18 2011-09-22 Nippon Electric Glass Co Ltd ガラスフィルムの製造方法及びガラスフィルムの処理方法並びにガラスフィルム積層体

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1154247A (ja) * 1997-08-06 1999-02-26 Noritake Co Ltd 金属線端子を備えたセラミックス積層構造体の製造方法
JP4392157B2 (ja) * 2001-10-26 2009-12-24 パナソニック電工株式会社 配線板用シート材及びその製造方法、並びに多層板及びその製造方法
JP2005060215A (ja) * 2003-07-29 2005-03-10 Nippon Electric Glass Co Ltd ディスプレイ用ガラス基板及びその製造方法
JP4832769B2 (ja) * 2005-02-14 2011-12-07 メニコン シンガポール ピーティーイー． リミテッド 包装体
US20120040211A1 (en) * 2009-02-23 2012-02-16 Takashi Murata Glass film for lithium ion battery
KR20120059512A (ko) * 2009-08-27 2012-06-08 아사히 가라스 가부시키가이샤 플렉시블 기재-지지체의 적층 구조체, 지지체를 갖는 전자 디바이스용 패널 및 전자 디바이스용 패널의 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010215436A (ja) * 2009-03-13 2010-09-30 Nippon Electric Glass Co Ltd ガラスフィルム積層体
WO2011001946A1 (ja) * 2009-07-03 2011-01-06 日本電気硝子株式会社 ガラスフィルム積層体
JP2011184284A (ja) * 2009-09-18 2011-09-22 Nippon Electric Glass Co Ltd ガラスフィルムの製造方法及びガラスフィルムの処理方法並びにガラスフィルム積層体
WO2011086991A1 (ja) * 2010-01-12 2011-07-21 日本電気硝子株式会社 ガラスフィルム積層体及びその製造方法並びにガラスフィルムの製造方法

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107614452A (zh) * 2015-05-28 2018-01-19 旭硝子株式会社 玻璃基板及层叠基板
KR20180013914A (ko) * 2015-05-28 2018-02-07 아사히 가라스 가부시키가이샤 유리 기판 및 적층 기판
US10515864B2 (en) 2015-05-28 2019-12-24 AGC Inc. Glass substrate and laminated substrate
US11114356B2 (en) 2015-05-28 2021-09-07 AGC Inc. Glass substrate and laminated substrate
KR102515348B1 (ko) 2015-05-28 2023-03-30 에이지씨 가부시키가이샤 유리 기판 및 적층 기판
KR20230044547A (ko) * 2015-05-28 2023-04-04 에이지씨 가부시키가이샤 유리 기판 및 적층 기판
US11715673B2 (en) 2015-05-28 2023-08-01 AGC Inc. Glass substrate and laminated substrate
KR102651767B1 (ko) 2015-05-28 2024-03-28 에이지씨 가부시키가이샤 유리 기판 및 적층 기판

Also Published As

Publication number Publication date
CN105143136A (zh) 2015-12-09
JP6237623B2 (ja) 2017-11-29
CN105143136B (zh) 2017-09-01
KR102156555B1 (ko) 2020-09-16
KR20160005000A (ko) 2016-01-13
JPWO2014181790A1 (ja) 2017-02-23
TW201509649A (zh) 2015-03-16
TWI594881B (zh) 2017-08-11

Similar Documents

Publication Publication Date Title
US9581844B2 (en) Method for fabrication of curved-surface display panel
AU2012305101B2 (en) Method for manufacturing curved-surface display
US20110192525A1 (en) Glass substrate laminated device and method for producing laminate glass substrate
US10090490B2 (en) Method of producing curved display panel
JP2015232656A (ja) 機器及びその製造方法
JP2011022220A (ja) 保護板付き電子部材
TW201437715A (zh) 製造輕薄液晶顯示裝置的方法
CN104865723A (zh) 一种曲面液晶显示面板的制程方法
WO2015170678A1 (ja) 粘着部材、粘着部材の製造方法、及び貼り合わせ部材の製造方法
TWI616706B (zh) 顯示面板製造方法與系統
TW201346004A (zh) 附黏著層之透明面材、顯示裝置及彼等之製造方法
JP2007187866A (ja) 液晶表示パネル、液晶表示パネルの製造方法、電子機器
KR20150016791A (ko) 액정 표시 패널의 제조 방법 및 이를 위한 기판 적층체
WO2020082718A1 (zh) 胶框的制作方法及显示面板
US11928294B2 (en) Bonding method of touch-control display panel, touch-control display panel and electronic device
JP6237623B2 (ja) ガラスフィルム積層体
JP2006162968A (ja) 表示パネルの製造方法及びこの表示パネルを用いた表示装置
JP2008203518A (ja) 表示素子の製造方法
WO2011125284A1 (ja) 液晶表示パネルの製造方法
CN102402072A (zh) 液晶面板的制造方法及液晶面板、液晶显示装置
KR20160014864A (ko) 터치스크린패널 액정표시장치
KR101325218B1 (ko) 플렉서블 표시판의 제조 방법
JP2007193077A (ja) 液晶表示装置
JP2020034727A (ja) 液晶表示装置
US9229258B2 (en) Liquid crystal mother panel and manufacturing method

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2014521872

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 201480023731.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14794978

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20157022346

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14794978

Country of ref document: EP

Kind code of ref document: A1