CN1464992A - Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same - Google Patents

Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same Download PDF

Info

Publication number
CN1464992A
CN1464992A CN02802432A CN02802432A CN1464992A CN 1464992 A CN1464992 A CN 1464992A CN 02802432 A CN02802432 A CN 02802432A CN 02802432 A CN02802432 A CN 02802432A CN 1464992 A CN1464992 A CN 1464992A
Authority
CN
China
Prior art keywords
friction
length
cloth
rubbing
friction cloth
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.)
Granted
Application number
CN02802432A
Other languages
Chinese (zh)
Other versions
CN1243275C (en
Inventor
李凤雨
南孝学
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.)
Samsung Display Co Ltd
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1464992A publication Critical patent/CN1464992A/en
Application granted granted Critical
Publication of CN1243275C publication Critical patent/CN1243275C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133784Surface-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
    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Abstract

The present invention discloses a rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing an LCD using the same. A rubbing pile formed on a rubbing cloth fabric fabricated by interweaving a weft and a warp having a length longer than that of the weft is aligned in a direction parallel to the weft. Accordingly, it is able to manufacture the rubbing cloth having a various size without a length of the alignment film and increase yield of the rubbing cloth.

Description

Friction cloth, its manufacturing method and apparatus of liquid crystal and the method for utilizing its manufacturing LCD are used to align
Technical field
The present invention relates to rub cloth and LCD (LCD), and especially relate to friction cloth, its manufacturing method and apparatus of a kind of liquid crystal that is used to align and utilize it to make the method for LCD.
Background technology
Usually, the LCD device utilizes the electrooptics characteristic displayed image information of liquid crystal.Some LCD devices transmitted ray when electric field is not applied on the liquid crystal.And some LCD devices stop light when electric field is not applied on the liquid crystal, and when electric field is applied on the liquid crystal transmitted ray.
Some LCD devices stop light when electric field is not applied on the liquid crystal, and this LCD device transmitted ray when electric field is applied on the liquid crystal.
In order to make the accurate transmission of light cross liquid crystal, the light that can see through liquid crystal should be provided to liquid crystal on the liquid crystal after consistent direction alignment equably again.The alignment of liquid crystal is by means of carrying out homogeneous thin film, and the light that can see through liquid crystal can obtain by polaroid.
To homogeneous thin film is polyimide film layer.When will be to homogeneous thin film during, on to homogeneous thin film, form the alignment groove against friction cloth towards the friction of consistent direction.The alignment of liquid crystal is carried out by means of the alignment groove.Friction cloth twines around the excircle of friction roller, and the friction roller of alignment groove by will having friction cloth is against friction is formed in the homogeneous thin film to homogeneous thin film.
Below, with reference to the manufacture process of Figure 1A to 1F description friction cloth.The term that is referred to herein as " friction cloth " fabric represents to have length and the cloth that is shorter than the width of length.
With reference to Figure 1A, friction cloth fabric 100 is made by the weft yarn 1 that interweaves with warp thread 2, and wherein warp thread 2 intersects weft yarns 1, and has the length of growing than weft yarn 1.Shown in Figure 1B and 1C, friction cloth fabric 100 comprises the rubbing pile 110 that is irregularly formed on friction cloth fabric 100.
Fig. 1 D is the process that the rubbing pile of irregular formation on the friction cloth fabric that is used to align is shown.
With reference to Fig. 1 D, the rotary broom 200 that is used to rearrange rubbing pile 110 is arranged on the direction that is parallel to friction cloth fabric 100 Widths.The direction that this Width and weft yarn 1 form on friction cloth fabric 100 is an equidirectional.When the contacted rotary broom 200 of transfer and friction cloth fabric 100, rubbing pile 110 is alignment again on the direction that is parallel to warp thread 2.Again the alignment rubbing pile give with Reference numeral " 115 ".
Shown in Fig. 1 E, having again, the friction cloth fabric 100 of the rubbing pile 115 of alignment cuts into piece.A friction cloth fabric that downcuts from friction cloth fabric 100 is defined as friction cloth 150.
Friction cloth 150 is attached on the friction roller 300, and friction roller has the longer length of comparison homogeneous thin film width.For the cloth 150 that will rub is attached on the friction roller 300, friction cloth 150 has and the similar length of the length of friction roller 300, and has and the similar width of friction roller 300 circumferential surface length.That is, the warp thread 2 of friction cloth 150 is along the circumferential surface alignment of friction roller 300, and weft yarn 1 aligns on the length direction of friction roller 300, and rubbing pile 110 is parallel to weft yarn 1 alignment.
Shown in Fig. 1 F, in the time of on friction roller 300 rotations of twining friction cloth 150 on it also are applied to pressure homogeneous thin film 400 simultaneously, on to homogeneous thin film 400, form the alignment groove.
Yet, when forming the alignment groove by the traditional friction roller 300 that adheres to the cloth 150 that rubs thereon, owing on to homogeneous thin film 400, form cut, and liquid crystal can not accurately align with the groove that aligns.When friction roller 300 against the tension force that homogeneous thin film 400 is difficult to overall control friction cloth fabric 100 during along warp thread 2 friction.When the tension force of friction cloth fabric 100 can not accurately be controlled, rubbing pile 110 can be distributed on the friction cloth fabric 100 brokenly.Therefore, liquid crystal can not accurately align with the groove that aligns.
Equally, when homogeneous thin film 500 being had about friction cloth 150 big or small, shown in Reference numeral 500 among Fig. 1 E, just can not form the alignment grooves by means of the friction cloth fabric 100 that width is shorter than homogeneous thin film 500.
Summary of the invention
The invention provides a kind of friction cloth, it has regular distribution to the rubbing pile on the homogeneous thin film.
The present invention also provides a kind of method of the cloth that creates friction, and this friction cloth has regular distribution to the rubbing pile on the homogeneous thin film.
The present invention also provides a kind of device of the cloth that is used to create friction, and this friction cloth has regular distribution to the rubbing pile on the homogeneous thin film.
The present invention also provides the method for a kind of LCD of manufacturing.
In one aspect of the invention, a kind of friction cloth of the liquid crystal that is used to align is provided, this friction cloth is to form by a warp length direction cutting rubbing cloth fabric part on friction cloth fabric, and wherein, friction cloth fabric comprises: the warp thread with first length; Have second length that is shorter than first length and the weft yarn that interweaves with warp thread; And along the rubbing pile of weft length direction alignment.
In another aspect, the method of the friction cloth that a kind of manufacturing is used to align liquid crystal is provided, this method comprises: the cloth fabric that creates friction, this friction cloth fabric comprise warp thread with first length, have second length that is shorter than first length and weft yarn and the irregular rubbing pile that is formed on the friction cloth fabric that interweaves with warp thread; Rubbing pile aligns on the weft length direction; And on the warp length direction cutting rubbing cloth fabric.
More on the one hand in, a kind of device of the cloth that is used to create friction is provided, this device comprises: the friction band of on friction cloth fabric width direction, installing, and wherein this friction cloth fabric comprises warp thread with first length, has second length that is shorter than first length and the weft yarn that interweaves with warp thread and be formed on rubbing pile on the cloth fabric face that rubs; Be used to receive revolving force and respond revolving force and the pulley of pivoting friction band; And be used for revolving force is applied to device on the pulley.
In aspect another, provide the method for a kind of LCD of manufacturing, having comprised: made and to have TFT, be used for to the power lead of TFT power supply and be used to receive from the TFT substrate of the pixel capacitors of the electric energy of TFT output; Make the colour filter substrate, this colour filter substrate has RGB pigment and public electrode, and is connected on the TFT substrate; By what on TFT substrate and colour filter substrate, form homogeneous thin film friction friction roller is formed the friction groove, wherein friction roller twines with friction cloth, and friction cloth is to form by the cutting rubbing cloth fabric, and wherein, friction cloth fabric comprises warp thread with first length, has second length that is shorter than first length and weft yarn that interweaves with warp thread and the rubbing pile that aligns along the weft length direction; The TFT substrate is assembled into the colour filter substrate; And liquid crystal is presented between TFT substrate and the colour filter substrate.
According to the present invention, friction cloth is to form by the warp thread that interweaves with the weft yarn that is shorter in length than warp thread, and rubbing pile is parallel to the warp thread alignment.So, can make the friction cloth of various sizes and irrelevant, and can increase the output of friction cloth with the film length of aliging.
Description of drawings
When associated drawings is considered, above-mentioned will becoming by the following detailed description of reference with other advantages of the present invention be easier to understand, wherein:
Figure 1A is the view that the tradition friction cloth fabric of the cloth that is used to rub is shown;
Figure 1B is the view that the rubbing pile on the friction cloth fabric that is distributed in shown in Figure 1A is shown;
Fig. 1 C is the zoomed-in view of " A " shown in Figure 1B;
Fig. 1 D is the view that the process of the rubbing pile shown in Figure 1B that is used to align is described;
Fig. 1 E illustrates the view that forms friction cloth by the friction cloth fabric shown in the cutting drawing 1D;
Fig. 1 F is that explanation utilizes the view of the tradition friction cloth friction shown in Fig. 1 E to the process of homogeneous thin film;
Fig. 2 A illustrates the view that is formed with the friction cloth of rubbing pile on according to one preferred embodiment of the present invention its;
Fig. 2 B is the view that the process of formed rubbing pile on the friction cloth fabric that is used to align shown in Fig. 2 A is shown;
Fig. 2 C is the view that the friction cloth that forms by the friction cloth fabric shown in the cutting drawing 2B is shown; And
Fig. 2 D is that explanation utilizes the friction cloth shown in Fig. 2 C to form the view of the process of alignment groove on to homogeneous thin film.
Embodiment
Fig. 2 C is the view that illustrates according to the friction cloth of alignment liquid crystal of the present invention.
With reference to Fig. 2 C, friction cloth 800 comprises friction cloth fabric 600 and the rubbing pile 118 that is distributed on the friction cloth fabric 600.
Friction cloth fabric 600 is to make by the weft yarn 1 that interweaves with warp thread 2, and the length of warp thread 2 is longer than weft yarn 1.The rubbing pile 118 that is shorter in length than weft yarn 1 is arranged on the friction cloth fabric 600.Rubbing pile 118 is to align with respect to 1 one-tenth angle of approximately ± 30 spending of weft yarn.Preferably, rubbing pile 118 is parallel to weft yarn 1 alignment of rubbing pile 118.
Rubbing pile 118 is arranged in to have the direction that is parallel to weft yarn 1 be for the accurate tension force of control friction cloth fabric 600.When rubbing pile 118 is aligned to when having the direction that is parallel to the warp thread 2 longer than weft yarn 1, the tension force of friction cloth fabric 600 can not be able to accurate control, and rubbing pile 118 irregular alignments, thereby can not accurately carry out friction process.When rubbing pile 118 is aligned to when having the direction that is parallel to the weft yarn 1 that is shorter in length than warp thread 2, the tension force of friction cloth fabric 600 can be able to accurate control, prevents rubbing pile 119 irregular alignments thus.
Below, describe the method for the cloth that creates friction with reference to Fig. 2 A to 2C, and describe the friction process that is undertaken by friction cloth with reference to Fig. 2 D.
With reference to Fig. 2 A, friction cloth fabric 600 comprises that weft yarn 1 and length is longer than the warp thread 2 of weft yarn 1.Weft yarn 1 interweaves with warp thread 2, so that create friction cloth fabric 600.Rubbing pile 110 irregular being arranged on the friction cloth fabric 600.
The direction that warp thread 2 forms on friction cloth fabric 600 is defined as the length direction of friction cloth fabric 600, and weft yarn 1 is formed on the Width that direction on the friction cloth fabric 600 is defined as friction cloth fabric 600.
Shown in Fig. 2 B, the rubbing pile 110 that is arranged on the friction cloth fabric 600 aligns again by means of band shape rubbing device 700.Again Dui Qi rubbing pile has been given Reference numeral " 118 ".
The friction that rubbing device 700 comprises the rubbing pile 110 that is used for aliging again with 710, be used to receive revolving force and drive friction with 710 first and second pulleys 720 and 730, and be used for applying revolving force to rotate the motor 740 of first and second pulleys 720 and 730 to first or second pulley 720,730.Rubbing pile 118 by means of friction with 710 with respect to about ± 30 angular alignment of degree of 1 one-tenth of weft yarn.
Shown in Fig. 2 C, cutting rubbing cloth fabric 600 is with the cloth 800 that creates friction.Especially, friction cloth 800 cuts into and has with the similar width of the girth of friction roller 300 and have the length similar with the length of friction roller 300.
So, might in friction process, prevent homogeneous thin film 400 by irregular be arranged on that the rubbing pile 118 of friction on the cloth 800 caused to homogeneous thin film 400 on the cut that forms.
Equally, even homogeneous thin film 400 is had the big size of width than friction cloth fabric 600, also can obtain the friction cloth that size is suitable for the size of friction film 400 by the Cutting Length that is controlled on friction cloth fabric 600 length directions.
Below, the method for making LCD according to friction cloth of the present invention of utilizing is described.
LCD comprises TFT substrate and colour filter substrate.Polyimide film layer be formed on have TFT, on the TFT substrate of gate circuit lead, data conductor and pixel capacitors.On polyimide film layer, carry out friction process so that the alignment liquid crystal.
The friction process of polyimide film layer carries out by means of the friction roller 300 that is wound with friction cloth 800.
The warp thread 2 that the friction cloth 800 that twines around friction roller 300 is longer than weft yarn 1 by interweave weft yarn 1 and length is made, and parallel thereon the rubbing pile 118 of weft yarn 1 is arranged on the friction cloth 800.
On polyimide film layer, form the alignment groove by the rubbing pile 118 of the cloth 800 that rubs against the polyimide film layer friction.The align with grooves flute profile becomes and has the direction that is parallel to rubbing pile 118 alignment direction, thereby liquid crystal is parallel to the alignment direction of rubbing pile 118 and aligns.
The alignment groove is by being formed on the colour filter substrate with the similar technology of above-mentioned technology.The alignment groove is with respect to being formed on alignment groove on the TFT substrate predetermined angular that tilts.The LCD panel is to make by after with the assembling of colour filter substrate and TFT substrate liquid crystal being placed between colour filter substrate and the TFT substrate.LCD makes by installing to the LCD panel sets such as the parts of lamp, optical plate, supply unit etc.
Industrial applicability
According to the present invention, friction cloth forms with the weft yarn that is shorter in length than warp thread by the warp thread that interweaves, and rubs The wiping pile is formed on the friction cloth and is parallel to the warp thread alignment.
So, can make the friction cloth of various sizes, and irrelevant with the length to homogeneous thin film, and can To improve the output of friction cloth.
Although exemplary embodiment of the present invention is described, be appreciated that the present invention is not Should be limited to those illustrative embodiments, but at the marrow of the present invention that limits such as claims In scope, those skilled in the art can make various changes and modifications.

Claims (8)

1. the friction cloth of the liquid crystal that is used to align, this friction cloth forms by the part along the length direction cutting rubbing cloth fabric of warp thread on the friction cloth fabric, and wherein, friction cloth fabric comprises:
Warp thread with first length;
Have second length that is shorter than first length and the weft yarn that interweaves with warp thread; And
Rubbing pile along the alignment of the length direction of weft yarn.
2. friction cloth as claimed in claim 1 is characterized in that, rubbing pile is to become approximately ± 30 alignment angles alignment of degree with respect to weft yarn.
3. friction cloth as claimed in claim 1 is characterized in that rubbing pile is parallel to weft yarn.
4. method of making the used friction cloth of alignment liquid crystal comprises:
The cloth fabric that creates friction, this friction cloth fabric comprise warp thread with first length, have second length that is shorter than first length and weft yarn and the irregular rubbing pile that is formed on the friction cloth fabric that interweaves with warp thread;
Rubbing pile aligns on the weft length direction; And
Cutting rubbing cloth fabric on the warp length direction.
5. method as claimed in claim 4 is characterized in that, rubbing pile is by the angle friction rubbing pile of degree aligns to become approximately ± 30 with respect to weft yarn.
6. method as claimed in claim 4, wherein, rubbing pile aligns by being parallel to weft yarn friction rubbing pile.
7. the device of the cloth that creates friction comprises:
The friction band of on friction cloth fabric width direction, installing, wherein this friction cloth fabric comprises warp thread with first length, has second length that is shorter than first length and the weft yarn that interweaves with warp thread and be formed on rubbing pile on the cloth fabric face that rubs;
Be used to receive revolving force and respond revolving force and the pulley of pivoting friction band; And
Be used for revolving force is applied to device on the pulley.
8. method of making LCD comprises:
Manufacturing has TFT, be used for to the power lead of TFT power supply and be used to receive from the TFT substrate of the pixel capacitors of the electric energy of TFT output;
Make the colour filter substrate, this colour filter substrate has RGB pixel and public electrode, and is connected on the TFT substrate;
By what on TFT substrate and colour filter substrate, form homogeneous thin film friction friction roller is formed the friction groove, wherein friction roller is wound with friction cloth, described friction cloth forms by the cutting rubbing cloth fabric, and wherein, friction cloth fabric comprises warp thread with first length, has second length that is shorter than first length and weft yarn that interweaves with warp thread and the rubbing pile that aligns along the weft length direction;
The TFT substrate is assembled into the colour filter substrate; And
Liquid crystal is inserted between TFT substrate and the colour filter substrate.
CNB02802432XA 2001-07-27 2002-07-26 Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same Expired - Lifetime CN1243275C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR45453/01 2001-07-27
KR45453/2001 2001-07-27
KR1020010045453A KR100813465B1 (en) 2001-07-27 2001-07-27 Rubbing cloth for aligning liquid crystal and method for fabricating thereof and apparatus for fabricating thereof and method for fabricating liquid crystal display device using the same

Publications (2)

Publication Number Publication Date
CN1464992A true CN1464992A (en) 2003-12-31
CN1243275C CN1243275C (en) 2006-02-22

Family

ID=19712615

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB02802432XA Expired - Lifetime CN1243275C (en) 2001-07-27 2002-07-26 Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same

Country Status (5)

Country Link
JP (1) JP3809541B2 (en)
KR (1) KR100813465B1 (en)
CN (1) CN1243275C (en)
TW (1) TWI279629B (en)
WO (1) WO2003012536A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097358B (en) * 2006-06-29 2010-05-19 乐金显示有限公司 Method of cutting rubbing cloth and method of forming alignment layer in liquid crystal display device
CN101923252A (en) * 2009-06-10 2010-12-22 富士胶片株式会社 The manufacture method of rubbing method, device, alignment films and optical component
CN101556409B (en) * 2008-04-09 2012-02-29 北京京东方光电科技有限公司 Friction cloth for oriented film friction process
CN106462013A (en) * 2016-06-17 2017-02-22 京东方科技集团股份有限公司 Friction roller, manufacturing method thereof and friction method for using friction roller to rub orientation layer of liquid crystal display substrate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4139732B2 (en) * 2003-05-15 2008-08-27 株式会社日立製作所 Rubbing cloth material for LCD panel manufacturing
KR100565948B1 (en) 2003-12-11 2006-03-30 엘지.필립스 엘시디 주식회사 Process for Liquid Crystal Cell of In-Plane Switching Mode Liquid Crystal Display Device
KR100879254B1 (en) * 2007-08-29 2009-01-16 주식회사 영도벨벳 Brushing apparatus for rubbing cloth
JP2009237343A (en) * 2008-03-27 2009-10-15 Fujifilm Corp Rubbing method, rubbing roller, and rubbing correction device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403184A1 (en) * 1984-01-31 1985-08-01 Johs. Girmes & Co Ag, 4155 Grefrath FLORAL FABRICS WITH FLORAL-FREE POINTS
US5336543A (en) * 1990-07-12 1994-08-09 Pyle Norman R Hair drying towel
KR0154770B1 (en) * 1994-12-21 1998-11-16 김광호 Rubbing device of liquid crystal display device
JP3155177B2 (en) * 1995-09-06 2001-04-09 シャープ株式会社 Apparatus for orienting liquid crystal display element substrate, rubbing cloth, and method for manufacturing liquid crystal display element
JP3247848B2 (en) * 1996-12-27 2002-01-21 シャープ株式会社 Rubbing apparatus, rubbing method and liquid crystal display
JP4028619B2 (en) * 1997-06-30 2007-12-26 東宝繊維株式会社 Continuous raising and shaving equipment
KR19990068243A (en) * 1998-01-20 1999-08-25 마츠시타 덴끼 산교 가부시키가이샤 The method of alignment process in liquid crystal, and the liquid crystal display
JP2000035580A (en) * 1998-07-21 2000-02-02 Matsushita Electric Ind Co Ltd Manufacture of liquid crystal display device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097358B (en) * 2006-06-29 2010-05-19 乐金显示有限公司 Method of cutting rubbing cloth and method of forming alignment layer in liquid crystal display device
CN101556409B (en) * 2008-04-09 2012-02-29 北京京东方光电科技有限公司 Friction cloth for oriented film friction process
CN101923252A (en) * 2009-06-10 2010-12-22 富士胶片株式会社 The manufacture method of rubbing method, device, alignment films and optical component
CN101923252B (en) * 2009-06-10 2015-02-25 富士胶片株式会社 Friction method, device, alignment film and producing method for optical member
CN106462013A (en) * 2016-06-17 2017-02-22 京东方科技集团股份有限公司 Friction roller, manufacturing method thereof and friction method for using friction roller to rub orientation layer of liquid crystal display substrate
CN106462013B (en) * 2016-06-17 2019-04-23 京东方科技集团股份有限公司 Friction roller and its manufacturing method, and the rubbing method of the oriented layer using friction roller friction liquid crystal display substrate

Also Published As

Publication number Publication date
JP3809541B2 (en) 2006-08-16
WO2003012536A1 (en) 2003-02-13
CN1243275C (en) 2006-02-22
KR20030010411A (en) 2003-02-05
TW200413797A (en) 2004-08-01
JP2004522210A (en) 2004-07-22
TWI279629B (en) 2007-04-21
KR100813465B1 (en) 2008-03-13

Similar Documents

Publication Publication Date Title
CN1303462C (en) Optical slice and LCD device therewith
CN1243275C (en) Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same
CN1678949A (en) Reflective and transflective liquid crystal display using a wire grid polarizer
CN1727957A (en) Liquid crystal display device having thin polarizing film and thin phase retardation film
CN1324369C (en) Liquid-crystal displaying device and manufacturing method thereof
TWI487976B (en) Optical sheet and composite sheet with moire fringe, and backlight assembly having the same
CN1637502A (en) Compensation film, manufacturing method thereof and liquid crystal display using the same
CN1211022A (en) Liquid crystal display
CN1873496A (en) In-plane-switching liquid crystal displayer and method
CN1470915A (en) Polarization rotator, parallax screen, display device and optical modulator
CN1685283A (en) Composite display unit and electric apparatus using this
CN1160590C (en) Method for mfg. optoelectronic device
CN1479141A (en) Liquid crytal display device using cholesteroid type liquid crystal
CN1224178A (en) Liquid crystal orientation processing method and liquid crystal display device thereby
CN1181384C (en) Reflective ferroelectric liquid crystal display and its driving method
US7075608B2 (en) Rubbing cloth for aligning a liquid crystal, method of manufacturing the same, apparatus for manufacturing the same and method of manufacturing a liquid crystal display using the same
CN1314996C (en) Translucent liquid crystal display panel
CN1573446A (en) Liquid crystal display
CN1697998A (en) Liquid crystal display element of semi-transmission type
CN1618038A (en) Combination of cholesteric layer and alignment layer
KR20200031785A (en) Back light unit and display apparatus comprising the same
CN1077694C (en) Liquid crystal display device
CN1532593A (en) Liquid crystal display device and its producing method
KR20070057573A (en) Method of fabricating liquid crystal display
KR20080060103A (en) Apparatus for rubbing and method thereof

Legal Events

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
ASS Succession or assignment of patent right

Owner name: SAMSUNG MONITOR CO., LTD.

Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD.

Effective date: 20121029

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20121029

Address after: Gyeonggi Do, South Korea

Patentee after: SAMSUNG DISPLAY Co.,Ltd.

Address before: Gyeonggi Do, South Korea

Patentee before: Samsung Electronics Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20060222

CX01 Expiry of patent term