CN100380207C - Friction roller and lcd components beamed treated by the friction roller - Google Patents
Friction roller and lcd components beamed treated by the friction roller Download PDFInfo
- Publication number
- CN100380207C CN100380207C CNB031457193A CN03145719A CN100380207C CN 100380207 C CN100380207 C CN 100380207C CN B031457193 A CNB031457193 A CN B031457193A CN 03145719 A CN03145719 A CN 03145719A CN 100380207 C CN100380207 C CN 100380207C
- Authority
- CN
- China
- Prior art keywords
- friction roller
- liquid crystal
- crystal display
- friction
- display cells
- 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.)
- Ceased
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Classifications
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Elimination Of Static Electricity (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Provided is a rubbing roll with which an alignment layer formed on a substrate of a liquid crystal display element is treated with a uniform pressure coping with upsizing of the liquid crystal display element, for which dust control measures are taken and weight saving is performed and the liquid crystal display element with the alignment layer treated by using the same with excellent display quality. An external cylinder formed of stainless steel 43 with an applied plating layer 44 is fixed to an outside of a carbon fiber reinforced plastics 41 forming a cylinder shape with an adhesive 42. The rubbing roll is constructed by sealing both end parts of the roll with a multilayer construction comprising a rubbing cloth 46 stuck to a surface of the plating layer 44 with a conductive adhesive 45 with a stainless steel plate 48 with stainless steel flanges 47 provided thereon.
Description
Technical field
The present invention relates to friction roller used in the directional process operation of one of liquid crystal display cells manufacturing process and use the liquid crystal display cells that this friction roller carries out directional process.
Background technology
The basic structure of liquid crystal display cells is on-off element or the electrode that forms on the surface of liquid crystal display cells substrate by applying the Control of Voltage Liquid Crystal Molecules Alignment.Give the two piece liquid crystal display cells wafers of liquid crystal molecule and be formed with in the above, in order then to keep at a distance and to fix with oriented film between middle relative with on-off element and electrode with encapsulant with the spacing body that disperses with the oriented film at default inclination angle.In the part of being enclosed, liquid crystal layer is set, again at the arranged outside polaroid of each liquid crystal display cells substrate by encapsulant and two liquid crystal cell display substrates.In the structure of this liquid crystal display cells, oriented film is that the organic high molecular layer of resin etc. is formed by polyimide, by with polyamide-based directional process such as synthon friction, makes liquid crystal molecule that predetermined orientation be arranged.
As the rubbing device that is used for this directional process, as shown in Figure 1, be that the friction roller of pasting rubbing cloth material 22 on cylindric metallic roll 21 is rotated along the direction of arrow.Along the surface of the oriented film 13 that forms on the direction friction liquid crystal display cells substrate 1, make the assortment direction of being located at two liquid crystal layer molecules between the liquid crystal display cells substrate be restricted to frictional direction (for example with reference to Patent Document 1) thus simultaneously.
Patent Document 1: the spy open flat 5-88179 communique (the 2nd～3 page, Fig. 3).
The purpose of the directional process operation of liquid crystal display cells is, by with friction cloth friction oriented film, liquid crystal molecule is evenly distributed and is orientated by same direction, to show uniformly on the whole surface of liquid crystal display cells.But liquid crystal display cells has the tendency of maximization in recent years, size commercial production already of the display element more than 1100mm all in length and breadth, and correspondingly, the used friction roller of the rubbing device of directional process operation is also planned to maximize.At this moment, as shown in Figure 2, in the friction roller 31 that uses existing metallic roll, along with the length growth of cylinder, friction roller middle body longitudinally will be because of the deadweight deflection.The oriented film 33 that forms on uneven pressure friction liquid crystal display cells substrate 32, the result can make the demonstration forfeiture homogeneity on whole of the liquid crystal display cells and damage display quality.In addition, when carrying out directional process with the bonding friction roller of going up friction cloth of common bonding agent, because of making friction cloth and oriented film friction, the rotation of friction roller will produce static, the fine hair that causes under coming off on airborne dust and the friction cloth is adsorbed onto oriented film, such part has hindered the existence of liquid crystal, becomes the demonstration that exists the pin hole part.
Summary of the invention
The present invention proposes after considering the problems referred to above, such liquid crystal display cells of providing display quality high is provided purpose, promptly in the directional process operation of one of liquid crystal display cells manufacturing process, adopt and such can carry out the friction roller of directional process and use this friction roller and carry out directional process, even make when liquid crystal display cells maximizes, also can go up the friction oriented film in whole of the liquid crystal display cells substrate, and can not make owing to static adsorbs dust and fine hair etc. can on the oriented film of liquid crystal display cells substrate, rub the time by this uniform pressure.
To achieve these goals, the described invention of claim 1 of the present invention is such friction roller, it is used for the on-off element and/or the electrode that are arranged on the liquid crystal display cells substrate surface in order to cover, and the liquid crystal display cells substrate that is formed with oriented film is carried out in the directional process operation of this oriented film, it is characterized in that, described friction roller is columnar, and has been to use carbon fiber reinforced plastics at least.
The described invention of claim 2 of the present invention is to make the friction roller described in the claim 1 have following characteristics: the parts that form the out cylinder of above-mentioned carbon fiber reinforced plastics adopt and have carried out the stainless steel of electroplating.
The described invention of claim 3 of the present invention is to make the friction roller described in the claim 2 have following characteristics: in the cloth that rubs on bonding with conductive adhesive on the described surface of having carried out on the stainless steel electroplating.
The described invention of claim 4 of the present invention is characterised in that each described friction roller carries out directional process in the use claim 1～3.
The present invention has following effect.
Past is general carry out with the friction roller of aluminium as the roller that the cloth that rubs is installed, it and the fiducial value of friction roller aspect weight and deflection of having used carbon fiber reinforced plastic of the present invention are as shown below.The size of comparative sample is all, external diameter 140mm, tube thick 7.5mm, length 2400mm, and material uses the aluminium of the carbon fiber reinforced plastics of proportion 1.7, heavy 21.5kg and proportion 2.7, heavy 28.8kg respectively, Fig. 3 is to use the situation of friction roller of the present invention, and Fig. 5 is the situation of structure that aluminium is used for the existing friction roller of roller.As a result, the friction roller of employing carbon fiber reinforced plastics of the present invention can alleviate about 25～40% with comparing approximately of existing use aluminium on weight; And maximum deflection is under the five equilibrium loading of both ends as support, the friction roller that uses carbon fiber reinforced plastics uses the friction roller of carbon fiber reinforced plastics to turn to the latter's about 1/3～1/4 than the weight that uses aluminium as the 0.078mm that is that 0.021mm uses aluminium as can be known.
So the friction roller of use carbon fiber reinforced plastics is compared with the friction roller of existing use aluminium and has been realized lightweight.This is changing friction roller itself, for changing friction cloth friction roller is being unloaded, installing and transporting process, all help to improve operation, in addition, even in the time of maximizing friction roller being maximized along with liquid crystal display cells, compare with the friction roller that uses aluminium in the past, also can reduce deflection, the homogeneity of less infringement friction pressure on whole directed face also can keep superior display quality even liquid crystal display cells maximizes.Again because the countermeasure that the static discharge that takes place when structurally having taked not make friction accumulates on friction roller, just can be on the liquid crystal display cells substrate in the directional process of set oriented film, reduce airborne dust and be adsorbed on the oriented film, be improved yield rate and can reduce the defective that the demonstration discomfort because of liquid crystal display cells causes from the fine hair of friction cloth under coming off etc.And so on, can obtain the above many-sided effect.
Description of drawings
Fig. 1 is the Fig. 3 in the list of references 1 (spy opens flat 5-88179 communique).
Fig. 2 generally shows the deflection of friction roller general when using the aluminium roller.
Fig. 3 is the sectional side elevation of friction roller of the present invention.
Fig. 4 is the fragmentary cross-sectional view of the A-A portion of Fig. 3.
Fig. 5 is the sectional side elevation of the general friction roller of use aluminium roller.
The meaning of each label is as follows among the figure:
40, friction roller; 41, carbon fiber reinforced plastics; 42, bonding agent; 43, stainless steel; 44, electrodeposited coating, 45, conductive adhesive; 46, friction cloth.
Concrete form of implementation
With 4 in detail best form of implementation of the present invention (attached with identical label for identical part among each figure) is described in detail below with reference to Fig. 3.Again, the form of implementation of the following stated is an appropriate object lesson of the present invention, thereby is added with required all qualifications technically.But scope of the present invention is not limited to the record done for clear and definite the present invention in the following explanation, is the limit that is not subjected to these concrete forms of implementation.
Fig. 3 is the sectional side elevation that shows the friction roller of the bright embodiment of the invention, and Fig. 4 is the fragmentary cross-sectional view of A-A portion among Fig. 3.For on-off element and/or electrode set on the covering liquid crystal display element substrate surface, the liquid crystal display cells substrate that is formed with oriented film is being carried out in the directional process operation of oriented film, make the section with vertical quadrature of used friction roller 40 become concentric circles as shown in Figure 3, become for this reason that the inner cylindrical section of this concentric circles of friction roller core material is then formed by carbon fiber reinforced plastics 41, it is the part that makes friction roller lightweight most critical.
Outer cylinder portion is to be formed by the thick stainless steel 43 (being specially SUS304) of about 0.5～0.7mm, and 41 of the carbon fiber reinforced plasticss of inner cylindrical section are bonding by bonding agents such as epoxy resin 42 and stainless steel 43.In addition, be provided with the electrodeposited coating 44 of thick nickel of about 50 μ m and/or chromium etc. in the surface of stainless steel 43.On this by conductive adhesive 45 bonding friction cloth 46 to reduce contact resistance.Like this,, just do not have build-up of static charges owing to formed when friction roller rotates the electrostatic discharge circuit that the friction because of friction cloth and oriented film takes place, thus can prevent airborne dust and the cloth that rubs on fine hair etc. under dropping be adsorbed onto on the oriented film.In addition, though though stainless steel 43 uses in the present embodiment is SUS304 and plated material has adopted nickel and/or chromium, this all also non-limiting so can not, they are can pass through the consideration of aspects such as function, operation, cost and suitably select.
Have, two end faces of friction roller, the static discharge that takes place for the rotating force of transmitting when friction and will rub oriented film the time are to outside again, have adopted with the corrosion resistant plate 48 that stainless steel flange 47 is installed and have stopped up and by the structure of carbon fiber reinforced plastics 41 coverings.So, can be directly not afterburning in the rotation of friction roller to carbon fiber reinforced plastics, so can when guaranteeing physical strength, form the circuit that the outside is carried out static discharge.
In addition, on the surface of carbon fiber reinforced plastics 41, will help to strengthen the physical strength of carbon fiber reinforced plastics by electronickelling and/or chromium.This moment as carbon fiber reinforced plastics and the stainless steel 43 electroplated with the bonding process of conductive adhesive just can guarantee to form electrostatic discharge circuit more reliably.Though on regard to plated material and adopted nickel and/or chromium, this is not limited thereto eventually but can do suitably selection on the basis of considering aspect function, operation and cost or the like.
Claims (2)
1. friction roller, be used for being arranged at the directional process operation of the oriented film that the mode of on-off element on the liquid crystal display cells substrate surface and/or electrode forms with covering, described friction roller is a cylindrical shape, the out cylinder that comprises the inner cylinder that formed by carbon fiber reinforced plastics and is formed by the stainless steel that has carried out electroplating is bonded on this stainless surface of having carried out plating with the conductive adhesive cloth that will rub.
2. a liquid crystal display cells is characterized in that, uses friction roller as claimed in claim 1 to carry out directional process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47514/03 | 2003-02-25 | ||
| JP47514/2003 | 2003-02-25 | ||
| JP2003047514A JP4181894B2 (en) | 2003-02-25 | 2003-02-25 | Rubbing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1525222A CN1525222A (en) | 2004-09-01 |
| CN100380207C true CN100380207C (en) | 2008-04-09 |
Family
ID=33113750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031457193A Ceased CN100380207C (en) | 2003-02-25 | 2003-06-27 | Friction roller and lcd components beamed treated by the friction roller |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4181894B2 (en) |
| KR (1) | KR100944327B1 (en) |
| CN (1) | CN100380207C (en) |
| TW (1) | TWI293710B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100779032B1 (en) * | 2005-02-21 | 2007-12-05 | (주)미래컴퍼니 | Rubbing roller for rubbing machine and method for making the same |
| JP4785043B2 (en) * | 2005-12-13 | 2011-10-05 | 常陽工学株式会社 | Rubbing equipment |
| CN100462819C (en) * | 2006-09-11 | 2009-02-18 | 北京京东方光电科技有限公司 | Friction equipment and its application |
| KR101059187B1 (en) * | 2008-11-10 | 2011-08-25 | 박승주 | Shaft of roller brush for display glass cleaning |
| KR101146923B1 (en) * | 2009-09-02 | 2012-05-22 | 주식회사 데크 | Device for balancing a rubbing roller |
| JP5667899B2 (en) * | 2011-02-01 | 2015-02-12 | 常陽工学株式会社 | Rubbing roller and manufacturing method thereof |
| CN103823322B (en) * | 2014-02-25 | 2016-03-30 | 昆山龙腾光电有限公司 | The female glass substrate of liquid crystal electrode and display panels |
| KR102081338B1 (en) * | 2014-04-10 | 2020-02-25 | (주) 코미코 | Rubbing roller and method for manufacturing the same |
| CN104238192B (en) * | 2014-09-03 | 2017-02-15 | 合肥鑫晟光电科技有限公司 | Aging device for friction cloth |
| CN104375326B (en) * | 2014-11-07 | 2017-08-25 | 深圳市华星光电技术有限公司 | Friction matching apparatus and LCD alignment equipment |
| CN104698688B (en) * | 2015-04-03 | 2017-08-01 | 合肥京东方光电科技有限公司 | Friction roller and its application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0588179A (en) * | 1991-05-24 | 1993-04-09 | Canon Inc | Production of rubbing roller and liquid crystal element and liquid crystal device |
| JPH06117430A (en) * | 1992-10-02 | 1994-04-26 | Mitsubishi Rayon Co Ltd | Metal coated roll |
| JPH10268243A (en) * | 1997-03-24 | 1998-10-09 | Nec Kagoshima Ltd | Dust removing roller for manufacturing liquid crystal display |
| JP2002006322A (en) * | 2000-06-21 | 2002-01-09 | Matsushita Electric Ind Co Ltd | Method for rubbing liquid crystal display device, liquid crystal display device and rubbing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04155313A (en) * | 1990-10-18 | 1992-05-28 | Fujitsu Ltd | Rubbing device and its regulating method |
| JP3079398B2 (en) * | 1992-07-07 | 2000-08-21 | キヤノン株式会社 | Rubbing roller |
| JP2000337351A (en) * | 1999-05-27 | 2000-12-05 | Toho Rayon Co Ltd | Roller made of carbon fiber reinforced resin composite material |
| JP4707215B2 (en) | 2000-08-11 | 2011-06-22 | 株式会社村田製作所 | Guide roller, ceramic electronic component manufacturing apparatus using the same, and ceramic electronic component manufacturing method using the same |
-
2003
- 2003-02-25 JP JP2003047514A patent/JP4181894B2/en not_active Expired - Lifetime
- 2003-06-27 CN CNB031457193A patent/CN100380207C/en not_active Ceased
- 2003-06-30 KR KR1020030043475A patent/KR100944327B1/en active IP Right Grant
- 2003-06-30 TW TW092117790A patent/TWI293710B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0588179A (en) * | 1991-05-24 | 1993-04-09 | Canon Inc | Production of rubbing roller and liquid crystal element and liquid crystal device |
| JPH06117430A (en) * | 1992-10-02 | 1994-04-26 | Mitsubishi Rayon Co Ltd | Metal coated roll |
| JPH10268243A (en) * | 1997-03-24 | 1998-10-09 | Nec Kagoshima Ltd | Dust removing roller for manufacturing liquid crystal display |
| JP2002006322A (en) * | 2000-06-21 | 2002-01-09 | Matsushita Electric Ind Co Ltd | Method for rubbing liquid crystal display device, liquid crystal display device and rubbing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4181894B2 (en) | 2008-11-19 |
| TWI293710B (en) | 2008-02-21 |
| JP2004258192A (en) | 2004-09-16 |
| CN1525222A (en) | 2004-09-01 |
| TW200416459A (en) | 2004-09-01 |
| KR100944327B1 (en) | 2010-03-03 |
| KR20040076562A (en) | 2004-09-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20101216 Decision number of declaring invalidation: 15773 Granted publication date: 20080409 |