CN1112686A - Liquid crystal display device and process for producing same - Google Patents

Liquid crystal display device and process for producing same Download PDF

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Publication number
CN1112686A
CN1112686A CN94119483A CN94119483A CN1112686A CN 1112686 A CN1112686 A CN 1112686A CN 94119483 A CN94119483 A CN 94119483A CN 94119483 A CN94119483 A CN 94119483A CN 1112686 A CN1112686 A CN 1112686A
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CN
China
Prior art keywords
substrate
liquid crystal
spacer
crystal display
display device
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN94119483A
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Chinese (zh)
Inventor
小林君平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of CN1112686A publication Critical patent/CN1112686A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13392Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2202/00Materials and properties
    • G02F2202/28Adhesive materials or arrangements

Abstract

A partition with the surface coated with an adhesive layer with excessive thickness is fixed on a basal plate of a liquid crystal display device by the adhesive layer, so the display quality of the traditional liquid crystal display device can be reduced. On the other hand, the adhesion force of the partition with the surface coated with the adhesive layer with deficient thickness can be reduced to cause the partition to move. In the invention, the display quality of the liquid crystal display device can be kept and the partition can be firmly fixed on the basal plate because the thickness of the adhesive layer on the partition is 0.05 to 0.1 micrometers.

Description

Liquid crystal display device and process for producing same
The present invention relates to a kind of liquid crystal display device and make the method for this device.
Traditional liquid crystal display device comprises two plate shape substrates that have a show electrode and an oriented layer on its facing surfaces, they bond together with strip of paper used for sealing so that setting scribbles the spacer of glue-line between substrate, and are sealed in the liquid crystal in the space that is limited by substrate and strip of paper used for sealing.Spacer be make by the glass of fixed size or resin particle and make between the substrate and to keep accurate spacing, make the display quality unanimity of liquid crystal.Glue-line is bonded at each spacer on the apparent surface of the oriented layer on the substrate, and makes the external force can not mobile spacer.
Usually, in order between two substrates, spacer to be set, adopt the method for spreading spacer on formed oriented layer on the substrate.Comprise in the method for spreading spacer with the simple spacer of the direct spreading of shower nozzle dried and spread method and with the wet method of spreading of shower nozzle spreading spacer and solvent.The spreading homogeneity of the method for spreading that wets is better than the dried method of spreading commonly used.The wet method of spreading commonly used adopts freon as solvent.In this method, shower nozzle sprays the potpourri of spacer and freon, and freon has then just volatilized between arrival is formed on the upper surface of the oriented layer on the substrate, so shower nozzle is dispensed onto spacer on the upper surface that is formed on the oriented layer on the substrate.Because recently to the control of freon, the wet method of spreading has adopted such as alcohols solvents such as isopropyl alcohol or ethanol and has replaced freon.
Yet, have been found that the following problems that replaces freon can cause freon not cause with alcohols solvent.
Problem is to absorb the trend that alcohols solvent expands owing to thickness has greater than the glue-line of 0.1 μ m, comprises a large amount of alcohols solvents and make in the glue-line on the spacer.When this spacer contact oriented layer, alcohols solvent is invaded oriented layer and is caused chemical reaction on the oriented layer.This has reduced the action of oriented layer, thereby has reduced the display quality of LCD.
The alcohols solvent amount is not enough in the glue-line that second problem is thickness less than 0.05 μ m.This does not reduce the running of oriented layer, but reduces the cohesive force (being the fundamental purpose of glue-line) of spacer.As a result, external force may mobile spacer and cause belonging to the interval of defective, thereby reduces the display quality of LCD.The present invention In view of the foregoing makes.
One object of the present invention is LCD and the manufacture method thereof that the cohesive force of a kind of display quality that keeps LCD and spacer is provided.
In order to reach this purpose, a first aspect of the present invention comprises first and second substrate relative to each other, be configured in first and second conductive layer on the corresponding apparent surface of first and second substrate respectively, the many spacers that are arranged between first and second substrate and they are separated, scribbling a thickness on the surface of each spacer is the glue-line of 0.05-0.1 μ m, and is sealed in a kind of liquid crystal in the space between first and second substrate.
A second aspect of the present invention comprises the steps: to be provided with first and second flexible substrate; On a surface of each piece of first and second substrate, a conductive layer is set; Many spacers are set on the surface of this substrate, scribble the glue-line that thickness is 0.05-0.1 μ m on the surface of each spacer; Make the conductive layer of first substrate relative with bonding first and second substrate of strip of paper used for sealing, and spacer is arranged between first and second substrate and with them separate with the conductive layer of second substrate; And a kind of liquid crystal is set in the space between first and second substrate.
After having studied the description of doing below in conjunction with accompanying drawing carefully, other purpose of the present invention, feature and advantage will be conspicuous.
Fig. 1 is the cut-open view according to the LCD of one embodiment of the present of invention;
Fig. 2 is the cut-open view for a kind of state of the LCD of Fig. 1, forms the step of a show electrode and an oriented layer below being illustrated on the upper surface of substrate;
Fig. 3 is a kind of cut-open view of state of the LCD of Fig. 1, is illustrated in the step that spreading on the surface of oriented layer scribbles the spacer of glue-line;
Fig. 4 is a kind of cut-open view of state of the LCD of Fig. 1, is illustrated in the step that has through the top substrate of a predetermined pretreated lower surface in location, substrate top, below; And
Fig. 5 is a kind of cut-open view of state of the LCD of Fig. 1, and expression is with the step of bonding these two substrates of strip of paper used for sealing.
Below with reference to a kind of liquid crystal display device of Fig. 1 description according to one embodiment of the present of invention.This liquid crystal display device comprises a flexible lower substrate 1 of plate shape and the flexible upper substrate 2 of plate shape.Use such as synthetic resin such as polyethylene terephthalate, polyethersulfone or polyimide and make for every in the substrate 1 and 2.Substrate 1 and 2 also useable glass is made.Have electrode 3 that tin indium oxide (ITO) makes and 4 and the oriented layer 5 and 6 made such as resins such as polyimide on substrate 1 and 2 the apparent surface.The strip of paper used for sealing 7 that substrate 1 and 2 usefulness such as thermosetting resins such as epoxy resin are made is bonded to each other, thus make substrate 1 with 2 and strip of paper used for sealing limit a packaging liquid crystal space that encapsulates a kind of liquid crystal 8 therein.The spacer of being made by the glass or the resin particle of fixed size 9 is set between the oriented layer 5 and 6 that forms on substrate 1 and 2.In order to make the display quality unanimity of liquid crystal 8, spacer 9 is with fixing positioned at intervals substrate 1 and 2.
The whole surface of each is to scribble glue-line 10 that one deck made by the acrylic acid thermoplastic resin originally in the spacer 9.The thickness of glue-line 10 is 0.05-0.1 μ m.As described below, by with a part of glue-line 10 that oriented layer 5 contacts with 6 on effect heat with pressure it is flowed and loss, thereby that part of spacer 9 corresponding with this part glue-line 10 is rendered as and oriented layer 5 and 6 contacted states.After this, glue-line 10 flow partly solidified and spacer 9 is fixed on the oriented layer 5 and 6 surface of formation on substrate 1 and 2 with loss.
Below with reference to the manufacture method of Fig. 2 to 5 description according to the LCD of one embodiment of the present of invention.
As shown in Figure 2, in order to make many lower substrate 1, at first prepare an elongated below substrate 24.Use up the pattern of making below show electrode 3 on the upper surface that is engraved in lower substrate 24.Immediately, below having show electrode 3 below apply a kind of directing agent on the predetermined position of upper surface of substrate 24.Then, roasting below substrate 24.Below substrate 24 after the roasting forms below oriented layer 5 by friction and in addition directed.
As shown in Figure 3, the spacer 9 that scribbles the glue-line 10 of 0.05-0.1 μ m on the surface is to be spread on the upper surface of below oriented layer 5 with the wet method of spreading subsequently.Be the spacer 9 and a kind of solvent that scribbles glue-line 10 on the surface.In this example such as isopropyl alcohol or ethanol or their alcohols solvents such as potpourri, the perhaps potpourri of pure water and alcohols solvent, perhaps the potpourri of pure water, isopropyl alcohol and ethanol is used as solvent.
Subsequently, the potpourri of spacer 9 with solvent is sprayed onto on the oriented layer 5 of below.Solvent had just volatilized before arriving oriented layer 5, thereby had only spacer 9 to arrive and be dispersed on the surface of below oriented layer 5.
Subsequently, prepare an elongated top substrate 25 and make many upper substrate 2, and place it in the top of below substrate 24, as shown in Figure 4.The pre-service that the lower surface of top substrate 25 is scheduled to.Promptly use up the pattern of making top show electrode 4 on the lower surface that is engraved in top substrate 25.Directing agent is applied on the predetermined position of lower surface of top substrate 25 with top show electrode 4.
Subsequently, roasting has applied the top substrate 25 of directing agent.Subsequently, will carry out orientation through the directing agent of roasting by friction etc. top oriented layer 6 will be provided.By screen printing etc. above surrounding oriented layer 6 above form strip of paper used for sealing 7 on the downside of substrate 25 with a liquid crystal filling orifice (not shown).Many liquid crystal displays in the substrate 25 form between the district and define slit-shaped openings 26 up.
Then, it is bonded to each other that substrate 24 and 25 is passed through strip of paper used for sealing 7, as shown in Figure 5.I.e. be heating and curing strip of paper used for sealing 7 and of the lower surface of upper surface by top substrate 25 and below substrate 24, and heat- sealing substrate 24 and 25 via strip of paper used for sealing 7 substrates 24 bonded to each other and 25.With each spacer 9 that oriented layer 5 contacts with 6 on part glue-line 10 on effect heat and pressure, and it is flowed and loss, thereby that part of spacer 9 corresponding with this part glue-line 10 is rendered as and oriented layer 5 and 6 state of contact.After this, the mobile and loss of glue-line 10 partly is cured and spacer 9 is fixed on the surface of oriented layer 5 and 6.
Subsequently, cutting substrate 24 and 25 and the liquid crystal display (see figure 5) is provided on the straight flange of slit-shaped openings 26.Then, by being limited to the liquid crystal filling orifice in the strip of paper used for sealing 7, a kind of liquid crystal 8 is injected in each liquid crystal display.Immediately, seal this liquid crystal filling orifice with a kind of sealant (not shown).Like this, just, made liquid crystal display device of the present invention.
In the above embodiments, the thickness that covers the glue-line 10 of each spacer 9 is 0.1 μ m or following, has therefore reduced the amount of the solvent in the glue-line 10 fully.Therefore, greatly reduced the amount of invading the solvent of oriented layer 5 and 6.Solvent neither can reduce the running of oriented layer 5 and 6, also can not reduce the display quality of LCD.On the other hand, glue-line 10 has 0.05 μ m or above thickness, therefore can keep the clinging power (being the main effect of glue-line 10) of spacer 9.Spacer 9 is accurately kept the interval between substrate 1 and 2 by set, to keep the display quality of liquid crystal display.
The not strict the foregoing description that is confined to of the present invention.Will be understood that person skilled in the art person can easily change the scope of the present invention that does not break away from revised version invention defined in claims.

Claims (19)

1, a kind of liquid crystal display device is characterized in that comprising:
First and second substrate that faces one another;
First and second conductive layer is arranged on the inner surface of described first and second substrate;
Be arranged between described first and second substrate and separate their many spacers, scribble the glue-line that thickness is approximately 0.05-0.1 μ m on the surface of each spacer; And
Be sealed in a kind of liquid crystal material in the interval between described first and second substrate.
2,, it is characterized in that also comprising according to the liquid crystal display device described in the claim 1:
Be arranged in first and second oriented layer on the described conductive layer.
3,, it is characterized in that wherein said spacer is fixed on described first and second oriented layer according to the liquid crystal display device described in the claim 2.
4,, it is characterized in that wherein this glue-line is made by a kind of thermoplastic resin according to the liquid crystal display device described in the claim 3.
5,, it is characterized in that at least one in the wherein said substrate is with a kind of the making in polyethylene terephthalate, polyethersulfone and the polyimide according to the liquid crystal display device described in the claim 3.
6,, it is characterized in that wherein this glue-line is made by a kind of thermoplastic resin according to the liquid crystal display device described in the claim 2.
7,, it is characterized in that in the wherein said substrate that at least one is by a kind of the making in polyethylene terephthalate, polyethersulfone and the polyimide according to the liquid crystal display device described in the claim 2.
8,, it is characterized in that wherein this glue-line is made by a kind of thermoplastic's resin according to the liquid crystal display device described in the claim 1.
9,, it is characterized in that in the wherein said substrate that at least one is by a kind of the making in polyethylene terephthalate, polyethersulfone and the polyimide according to the liquid crystal display device described in the claim 1.
10, a kind of method of making liquid crystal display device is characterized in that comprising the steps:
First and second flexible substrate is provided;
On a surface of each first and second substrate, a conductive layer is set;
On the described surface of this substrate, many spacers are set, respectively scribble the glue-line that a layer thickness is 0.05-0.1 μ m on the surface of this spacer;
With bonding this first and second substrate of strip of paper used for sealing, make the conductive layer of the conductor planes of the substrate of winning, and spacer is arranged between first and second substrate and with them separate second substrate; And
A kind of liquid crystal is set in the interval between first and second substrate.
11,, it is characterized in that also comprising the steps: according to the method described in the claim 10
On the conductive layer of this first and second substrate respectively, an oriented layer is set.
12,, it is characterized in that wherein said spacer is provided with step and carries out with spreading according to the method described in the claim 11.
13,, it is characterized in that wherein this spacer is and a kind of solvent mixture when described spacer is provided with in the step when spreading according to the method described in the claim 12.
14,, it is characterized in that this solvent wherein is an alcohols according to the method described in the claim 13.
15,, it is characterized in that this solvent wherein comprises a kind of in isopropyl alcohol or the ethanol at least according to the method described in the claim 14.
16, according to the method described in the claim 10, it is characterized in that wherein this spacer is provided with step carries out with spreading.
17,, it is characterized in that wherein when described spacer is provided with in the step when spreading this spacer and a kind of solvent according to the method described in the claim 16.
18,, it is characterized in that wherein this solvent is an alcohols according to the method described in the claim 17.
19,, it is characterized in that this solvent wherein comprises a kind of in isopropyl alcohol or the ethanol at least according to the method described in the claim 15.
CN94119483A 1993-12-06 1994-12-06 Liquid crystal display device and process for producing same Pending CN1112686A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5339192A JP2753548B2 (en) 1993-12-06 1993-12-06 Manufacturing method of liquid crystal display device
JP339192/93 1993-12-06

Publications (1)

Publication Number Publication Date
CN1112686A true CN1112686A (en) 1995-11-29

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CN94119483A Pending CN1112686A (en) 1993-12-06 1994-12-06 Liquid crystal display device and process for producing same

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JP (1) JP2753548B2 (en)
KR (1) KR950019856A (en)
CN (1) CN1112686A (en)
TW (1) TW359371U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1296761C (en) * 2001-10-11 2007-01-24 株式会社日立制作所 Liquid crystal display device
CN100367098C (en) * 2006-04-04 2008-02-06 友达光电股份有限公司 Liquid crystal display panel and mfg. method thereof
CN100426100C (en) * 2003-10-16 2008-10-15 鸿富锦精密工业(深圳)有限公司 Liquid crystal panel manufacturing method
CN100464221C (en) * 2005-12-29 2009-02-25 乐金显示有限公司 Roll stocker and method for fabricating liquid crystal display device using the same
CN101957521A (en) * 2010-08-12 2011-01-26 大连东方科脉电子有限公司 High-contrast liquid crystal electronic paper displayer and manufacturing method thereof
CN101546069B (en) * 2008-03-26 2012-11-21 北京京东方光电科技有限公司 Liquid crystal display panel structure and manufacturing method thereof
CN102967967A (en) * 2012-12-14 2013-03-13 福耀玻璃工业集团股份有限公司 Method for controlling bonding strength of bonding layers of spacers of dimmer
CN103499889A (en) * 2013-10-15 2014-01-08 大连东方科脉电子有限公司 Auto-dimming spectacles and manufacturing method thereof
CN107203071A (en) * 2017-06-06 2017-09-26 惠科股份有限公司 A kind of display panel and its processing procedure and display device
CN111488065A (en) * 2020-05-26 2020-08-04 深圳市宝立创科技有限公司 Cholesteric liquid crystal handwriting board and preparation method thereof

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JP4502441B2 (en) * 2000-02-16 2010-07-14 共同印刷株式会社 Support method and layer structure of transparent conductive film by adhesive
EP3492971B1 (en) * 2016-07-26 2022-11-30 Dai Nippon Printing Co., Ltd. Light modulating system, method for driving a light modulating film, and vehicle

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JPH04243230A (en) * 1991-01-18 1992-08-31 Ricoh Co Ltd Liquid crystal display element and production thereof

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1296761C (en) * 2001-10-11 2007-01-24 株式会社日立制作所 Liquid crystal display device
CN100426100C (en) * 2003-10-16 2008-10-15 鸿富锦精密工业(深圳)有限公司 Liquid crystal panel manufacturing method
US7932977B2 (en) 2005-12-29 2011-04-26 Lg Display Co., Ltd. Roll stocker and method for fabricating liquid crystal display device using the same
CN100464221C (en) * 2005-12-29 2009-02-25 乐金显示有限公司 Roll stocker and method for fabricating liquid crystal display device using the same
CN100367098C (en) * 2006-04-04 2008-02-06 友达光电股份有限公司 Liquid crystal display panel and mfg. method thereof
CN101546069B (en) * 2008-03-26 2012-11-21 北京京东方光电科技有限公司 Liquid crystal display panel structure and manufacturing method thereof
CN101957521A (en) * 2010-08-12 2011-01-26 大连东方科脉电子有限公司 High-contrast liquid crystal electronic paper displayer and manufacturing method thereof
CN101957521B (en) * 2010-08-12 2013-11-20 大连东方科脉电子有限公司 High-contrast liquid crystal electronic paper displayer and manufacturing method thereof
CN102967967A (en) * 2012-12-14 2013-03-13 福耀玻璃工业集团股份有限公司 Method for controlling bonding strength of bonding layers of spacers of dimmer
CN102967967B (en) * 2012-12-14 2014-12-17 福耀玻璃工业集团股份有限公司 Method for controlling bonding strength of bonding layers of spacers of dimmer
CN103499889A (en) * 2013-10-15 2014-01-08 大连东方科脉电子有限公司 Auto-dimming spectacles and manufacturing method thereof
CN103499889B (en) * 2013-10-15 2016-01-13 大连东方科脉电子有限公司 A kind of automatic anti-glare glasses and manufacture method thereof
CN107203071A (en) * 2017-06-06 2017-09-26 惠科股份有限公司 A kind of display panel and its processing procedure and display device
WO2018223468A1 (en) * 2017-06-06 2018-12-13 惠科股份有限公司 Display panel and manufacturing process thereof
CN111488065A (en) * 2020-05-26 2020-08-04 深圳市宝立创科技有限公司 Cholesteric liquid crystal handwriting board and preparation method thereof

Also Published As

Publication number Publication date
JPH07159797A (en) 1995-06-23
JP2753548B2 (en) 1998-05-20
TW359371U (en) 1999-05-21
KR950019856A (en) 1995-07-24

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