WO2006075462A1 - Appareil et procede de fabrication d'ecran d'affichage a cristaux liquides - Google Patents

Appareil et procede de fabrication d'ecran d'affichage a cristaux liquides Download PDF

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Publication number
WO2006075462A1
WO2006075462A1 PCT/JP2005/022537 JP2005022537W WO2006075462A1 WO 2006075462 A1 WO2006075462 A1 WO 2006075462A1 JP 2005022537 W JP2005022537 W JP 2005022537W WO 2006075462 A1 WO2006075462 A1 WO 2006075462A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
dropping
display panel
dropped
crystal display
Prior art date
Application number
PCT/JP2005/022537
Other languages
English (en)
Japanese (ja)
Inventor
Takatoshi Kira
Nobuo Sasaki
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2006075462A1 publication Critical patent/WO2006075462A1/fr

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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
    • G02F1/1341—Filling or closing of cells
    • 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
    • G02F1/1341—Filling or closing of cells
    • G02F1/13415—Drop filling process

Definitions

  • the present invention relates to a liquid crystal display panel manufacturing apparatus and a liquid crystal display panel manufacturing method.
  • two substrates on which transparent electrodes, thin film transistor arrays, and the like are formed are bonded to each other so as to maintain a very narrow gap of about several ⁇ m.
  • the substrates are bonded using a sealing material so that the main surfaces face each other. It is necessary to arrange the sealing material so that it has a substantially frame shape, and fill the space surrounded by the two substrates and the sealing material with liquid crystal and seal it.
  • a manufacturing method of a liquid crystal display panel is a method by which a plurality of liquid crystal display cells are formed on a large substrate and then divided into individual single liquid crystal display cells. is there.
  • the manufacturing method by multi-chamfering for example, the following liquid crystal sealing method has been adopted for filling and sealing the liquid crystal.
  • a sealing material is disposed on a substrate in an atmosphere of atmospheric pressure.
  • the sealing material is disposed along the outer periphery of the region to be the liquid crystal display cell of one substrate.
  • the sealing material is arranged in a pattern in which a cut (liquid crystal injection port) for injecting liquid crystal is formed in a space surrounded by the sealing material that is not in a completely closed frame shape.
  • a plurality of sealing materials are disposed on the substrate, and the two substrates are bonded together to compress and harden the sealing material. Next, this bonded substrate is divided into a predetermined size so that the inlets of the respective sealing materials are arranged at the ends. Injection Loker Liquid crystal is injected into a space surrounded by each sealing material and two substrates, and the injection port is sealed.
  • liquid crystal dropping method In the above-described method for manufacturing a liquid crystal display panel, it is necessary to separately perform a process of bonding two substrates together and a process of encapsulating liquid crystals. On the other hand, a liquid crystal dropping method has been proposed as a method capable of simultaneously performing these two steps (see, for example, Japanese Patent Publication No. 63-179323). [0007] In the liquid crystal dropping method, a closed frame-shaped sealing material is arranged on the surface of a substrate, and liquid crystal is dropped into a region that should be inside the frame-shaped sealing material. Thereafter, the two substrates are bonded together in a vacuum atmosphere and the sealing material is cured, so that the bonding of the substrates and the sealing of the liquid crystal can be performed simultaneously.
  • a plurality of frame-shaped sealing materials are arranged on either one of two substrates to be bonded to each other.
  • those containing an ultraviolet curable resin are suitable.
  • Liquid crystal is dropped on a region corresponding to the inside of the sealing material of either one of the substrates. These two substrates are bonded together in a vacuum atmosphere.
  • the sealing material is cured by a method using ultraviolet irradiation or a method using both ultraviolet irradiation and heating.
  • a plurality of liquid crystal display cells are formed on a bonded substrate obtained by bonding two substrates.
  • the bonded substrate is divided into individual liquid crystal display cells to produce a liquid crystal display panel.
  • Japanese Patent Laid-Open No. 2003-295149 discloses that before attaching the liquid crystal dropping syringe to the liquid crystal dropping device, the weight of the liquid crystal dropping amount is measured using another liquid crystal dropping amount measuring device, and measured data Force A method is disclosed for determining whether a force is appropriate for the assembly and setting of a liquid crystal dropping syringe.
  • the weight of the dropped liquid crystal is measured before loading the substrate onto the stage, and if the set amount is not met, the piston of the liquid crystal dropping syringe is An apparatus that can be adjusted to adjust the amount of liquid crystal dripped is disclosed.
  • Patent Document 1 JP-A 63-179323
  • Patent Document 2 Japanese Patent Laid-Open No. 2003-295149
  • Patent Document 3 Japanese Patent Laid-Open No. 2004-54293
  • the liquid crystal dropping method the liquid crystal is dropped before the substrates are bonded together, and the substrates are bonded and the liquid crystal is enclosed. For this reason, if the amount of liquid crystal dripped is small, defects such as in-plane bubbles occur in the liquid crystal display cell or the cell thickness becomes thin. Conversely, the liquid If the amount of crystal dripping is large, the liquid crystal display cell force will cause problems such as liquid crystal leaks or cell thickness increases. Therefore, it is preferable that the amount of liquid crystal dropped is as designed as possible. In an apparatus for dripping liquid crystal, it is preferable that an abnormality of the liquid crystal dropping syringe can be detected at an early stage because a liquid crystal display cell with a poor liquid crystal filling amount is not manufactured.
  • the liquid crystal dropping syringe is inspected in advance. Since the amount of dripping is not measured when the liquid crystal is dripped continuously, for example, when a liquid crystal is dripped by a multi-cavity manufacturing method, a problem with the liquid crystal dripping syringe cannot be found. There is a problem. For example, when foreign matter is mixed in the liquid crystal, if the liquid crystal dropping syringe is clogged during the dropping of the liquid crystal, there is a problem that liquid crystal dropping defects frequently occur.
  • An object of the present invention is to provide an apparatus for manufacturing a liquid crystal display panel and a method for manufacturing a liquid crystal display panel, which can detect an abnormality of a liquid crystal dropping syringe at an early stage and improve productivity.
  • An apparatus for manufacturing a liquid crystal display panel according to one aspect based on the present invention is photographed by a liquid crystal dropping syringe for dripping liquid crystal, a photographing means for photographing the dropped liquid crystal, and a photographing means.
  • the photographing means is formed to be movable so as to follow the liquid crystal dropping syringe.
  • the photographing means is formed to be movable so as to follow the liquid crystal dropping syringe.
  • the photographing means is formed to be movable so as to follow the liquid crystal dropping syringe.
  • the photographing means is formed to be movable so as to follow the liquid crystal dropping syringe.
  • the detection means is formed so as to compare a dropped area of the dropped liquid crystal with a reference value.
  • the detection means can be easily formed.
  • a method for manufacturing a liquid crystal display panel includes a step of dropping a liquid crystal onto a substrate with a liquid crystal dropping syringe, following the method of manufacturing a liquid crystal display panel including a step of dropping and sealing a liquid crystal on a substrate. And a step of taking an image of the dropped liquid crystal, and a step of judging whether the liquid crystal dropping syringe is operating normally from the taken image.
  • a liquid crystal dropping syringe for dropping liquid crystal a photographing means for photographing the dropped liquid crystal, and a display means for displaying an image of the liquid crystal photographed by the photographing means.
  • the liquid crystal display panel is manufactured using the liquid crystal display panel manufacturing apparatus provided.
  • the liquid crystal dropping syringe for dropping the liquid crystal the photographing means for photographing the dropped liquid crystal, and the liquid crystal dropping by analyzing the image of the liquid crystal photographed by the photographing means.
  • a liquid crystal display panel is manufactured using an apparatus for manufacturing a liquid crystal display panel having a detecting means for detecting abnormality of the syringe.
  • the invention's effect it is possible to provide an apparatus for manufacturing a liquid crystal display panel and a method for manufacturing a liquid crystal display panel, in which an abnormality of the liquid crystal dropping syringe can be detected at an early stage and productivity is improved.
  • FIG. 1 is a schematic side view of a liquid crystal display panel manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view of a main part of a liquid crystal display panel manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 3 is a first schematic plan view when liquid crystal is dropped onto a substrate.
  • FIG. 4 is a second schematic plan view when liquid crystal is dropped onto a substrate.
  • FIG. 5 is a third schematic plan view when liquid crystal is dropped on a substrate.
  • FIG. 6 is a schematic plan view when a sealing material and a liquid crystal are arranged on a glass substrate for multi-chamfering.
  • FIGS. 1 to 6 a liquid crystal display panel manufacturing apparatus and a liquid crystal display panel manufacturing method according to an embodiment of the present invention will be described.
  • FIG. 1 is a schematic side view of an apparatus for manufacturing a liquid crystal display panel in the present embodiment.
  • the apparatus for manufacturing a liquid crystal display panel in the present embodiment includes a liquid crystal dropping syringe 2 for dropping liquid crystal.
  • a nozzle 10 is formed at the lower end of the liquid crystal dropping syringe 2.
  • the nozzle 10 is disposed so as to face the glass substrate 8 to be disposed.
  • Below the liquid crystal dropping syringe 2 is formed a stage 9 for placing a glass substrate 8 as a substrate in the present embodiment.
  • the stage 9 is formed in a flat plate shape so that the glass substrate 8 can be fixed!
  • the liquid crystal dropping syringe 2 is formed so as to be movable along the longitudinal direction of the guide rod 11. It is. Further, the guide bar 11 is connected to a guide bar driving means (not shown). The guide bar driving means is formed so that the guide bar 11 moves in a horizontal direction perpendicular to the longitudinal direction. The guide bar driving means is formed so as to move the guide bar 11 in a direction perpendicular to the paper surface in FIG.
  • a CCD (Charge Coupled Device) camera 4 and an illumination 3 are arranged on the side of the liquid crystal dropping syringe 2.
  • the CCD camera 4 is formed as a photographing means for photographing the dropped liquid crystal image.
  • Illumination 3 is formed to illuminate the area to be photographed.
  • FIG. 2 shows an enlarged perspective view of the liquid crystal dropping syringe part.
  • the CCD camera 4 and the illumination 3 are attached and fixed to the liquid crystal dropping syringe 2.
  • the CCD camera 4 and the illumination 3 are formed so that the distance from the liquid crystal dropping syringe 2 can be adjusted!
  • the CCD camera 4 and the illumination 3 are formed so as to move integrally with the liquid crystal dropping syringe 2.
  • the CCD camera 4 is formed so as to follow the liquid crystal dropping syringe 2.
  • the illumination 3 and the CCD camera are arranged so that the liquid crystal 6b dropped inside the adjacent sealant 21 can be photographed.
  • La 4 is placed.
  • the CCD camera 4 is formed so as to be disposed directly above the liquid crystal 6b dropped inside the adjacent sealing material 21 when the liquid crystal 6a is dropped from the liquid crystal dropping syringe 2.
  • the CCD camera 4 is arranged on the rear side with respect to the direction in which the liquid crystal dropping syringe 2 travels, and is formed so that the liquid crystal 6b dropped inside the sealing material 21 adjacent to the liquid crystal 6a to be dropped can be photographed.
  • Illumination 3 is arranged to illuminate the liquid crystal 6b to be photographed.
  • CCD camera 4 is electrically connected to image processing computer 5.
  • the image processing computer 5 is formed as a detecting means for analyzing an image photographed by the CCD camera 4 and detecting an abnormality of the liquid crystal dropping syringe 2.
  • the image processing computer 5 is formed so as to be able to compare the drop area of the liquid crystal image taken with a reference value!
  • the dripping area in the present invention refers to the area occupied by the liquid crystal when the liquid crystal dripped onto the surface of the substrate or the like is viewed in plan. In other words, it shows the projected area when the dropped liquid crystal is projected onto the surface of the substrate.
  • the liquid crystal dropping syringe 2 is electrically connected to the positioning controller 1.
  • the positioning controller 1 is formed so as to be able to move the liquid crystal dropping syringe 2 to a position to be dropped by giving an instruction to the liquid crystal dropping syringe 2 and the guide rod driving means. Further, the positioning controller 1 is formed so that it can detect that the liquid crystal dropping syringe 2 is arranged at a position to be dripped and can give a photographing instruction to the CCD camera 4.
  • FIG. 6 shows a schematic plan view of a large glass substrate for obtaining a plurality of liquid crystal display cells.
  • FIG. 6 is a schematic plan view when the liquid crystal is dropped to the middle cell in the liquid crystal dropping step.
  • a total of 280 sealants of 14 columns ⁇ 20 rows are arranged on the surface of a glass substrate 8 having a size of 620 mm wide ⁇ 750 mm long.
  • the liquid crystal display panel formed from the glass substrate shown in Fig. 6 has a rectangular planar shape and a diagonal size of about 1.5 inches.
  • a plurality of sealing materials 21 are arranged in a closed frame shape.
  • the seal material 21 is formed in a substantially rectangular shape so that the planar shape is along the outer edge of the liquid crystal display panel.
  • the sealing material 21 is arranged in a regular arrangement.
  • the sealing material 21 is formed so as to correspond to the liquid crystal display cell to be formed. That is, one liquid crystal display cell is formed from one sealing material 21.
  • the liquid crystal 6 is dropped on the glass substrate 8 on which the sealing material 21 is disposed.
  • the liquid crystal 6 is dripped inside the frame shape of the sealing material 21.
  • the liquid crystal may be dropped on a substrate that is bonded so as to face the glass substrate 8.
  • the liquid crystal display panel manufacturing apparatus in the present embodiment is a liquid crystal dropping apparatus for dropping a predetermined amount of liquid crystal into a region corresponding to a liquid crystal display cell as shown in FIG.
  • liquid crystal dropping syringe 2 and guide rod driving means are driven by an instruction from positioning controller 1.
  • the liquid crystal dropping syringe 2 moves to a position where the liquid crystal 6a should be dropped.
  • the liquid crystal dropping syringe 2 is disposed immediately above the inner region of one sealing material.
  • the liquid crystal dropping syringe 2 drops the liquid crystal 6a.
  • the CCD camera 4 shoots the liquid crystal 6b that has already been dropped onto the glass substrate 8.
  • photographing by the CCD camera 4 is performed in accordance with an instruction from the positioning controller 1.
  • liquid crystal dropping syringe 2 and CCD camera 4 are integrally formed. While dropping the liquid crystal 6a from the liquid crystal dropping syringe 2, it is possible to photograph the liquid crystal 6b disposed inside the adjacent sealing material 21 as indicated by an arrow 33. The liquid crystal 6b to be photographed is illuminated by the illumination 3 as indicated by an arrow 34.
  • the liquid crystal dropping syringe 2 is moved to a different position where the liquid crystal inside the same sealing material 21 should be dropped as shown by an arrow 31. Then, the next liquid crystal 6a is dropped, and another liquid crystal 6b arranged inside the adjacent sealing material 21 is photographed.
  • the liquid crystal dropping syringe 2 is moved to the position where the liquid crystal inside the adjacent seal 21 is to be dropped, and the next liquid crystal 6a is dropped. Do it.
  • the liquid crystal 6a is dropped, two previous liquid crystals 6b that have been dropped simultaneously are photographed. In this way, the dropping of the liquid crystal 6a and the photographing of the liquid crystal 6b are repeated.
  • liquid crystal is dropped for each column.
  • the other substrate is bonded in a reduced-pressure atmosphere, and a polarizing plate is bonded, thereby dividing the liquid crystal display cell into individual liquid crystal display cells.
  • a liquid crystal display panel is manufactured by connecting a drive circuit to the divided liquid crystal display cells.
  • an image captured by CCD camera 4 is sent to image processing computer 5 as indicated by arrow 37.
  • the drop area occupied by the liquid crystal on the surface of the glass substrate 8 is measured based on the captured liquid crystal image. In other words, the area of the shadowed area when the dropped liquid crystal is projected onto the glass substrate is reduced. Calculated.
  • FIG. 3 shows a schematic plan view of an image taken when an appropriate amount of liquid crystal is dropped on the substrate.
  • the dropped liquid crystal 6c has a substantially circular planar shape.
  • the lower limit allowable range 41 is a circle having an area when the minimum amount of the allowable range of the liquid crystal dropping amount is dropped.
  • the upper limit allowable range 42 is a circle having an area when the maximum amount of the liquid crystal dropping amount allowable range is dropped.
  • the circle which is the planar shape of the liquid crystal 6c is larger than the lower limit allowable range 41 and smaller than the upper limit allowable range 42.
  • FIG. 4 shows a schematic plan view when the amount of liquid crystal dropped is less than the lower limit of the allowable range.
  • the liquid crystal 6d is dropped in an amount smaller than the allowable amount of liquid crystal.
  • the circle that is the planar shape of the liquid crystal 6d is included in the lower limit allowable range 41.
  • FIG. 5 shows a schematic plan view when the amount of liquid crystal dropped is larger than the upper limit of the allowable range.
  • the liquid crystal 6e is dropped in an amount larger than the allowable amount of liquid crystal.
  • the circle which is the planar shape of the liquid crystal 6e includes the upper limit allowable range 42.
  • the dropping area of the liquid crystal 6c is larger than the area of the lower limit allowable range 41 and smaller than the area of the upper limit allowable range 42, so that appropriate dropping is performed and the liquid crystal dropping syringe is normal. It is determined.
  • the dropping area of the liquid crystal 6d is smaller than the area of the lower limit allowable range 41, the liquid crystal dropping syringe is determined to be abnormal.
  • the area of the drop area force upper limit allowable range 42 of the liquid crystal 6e is larger, it is determined that the liquid crystal drop syringe is abnormal.
  • the liquid crystal dripped on the surface of the substrate is analyzed, and the detecting means for detecting the abnormality of the liquid crystal dropping syringe is provided, so that liquid crystal is being dropped intermittently.
  • abnormalities in the liquid crystal dripping syringe can be discovered, and abnormalities in the liquid crystal dripping syringe can be discovered early.
  • the planar shape of the liquid crystals 6c to 6e to be dropped is a circular force.
  • the liquid crystal can be dropped in the shape of Even in this case, the image processing computer 5 can detect an abnormality of the liquid crystal dropping syringe by obtaining the area when the dropped liquid crystal is viewed in plan.
  • the detecting means is formed so as to compare the dropped area of the dropped liquid crystal with a reference value.
  • the detection means is not particularly limited to this form, and the volume of the dropped liquid crystal may be calculated to determine the state of the liquid crystal.
  • the amount of liquid crystal dropped may be determined by reproducing a stereoscopic image based on a plurality of two-dimensional images taken from different positions. By adopting this configuration, it is possible to perform more precise liquid crystal measurement.
  • the CCD camera as the imaging means is formed to be movable following the liquid crystal dropping syringe.
  • the amount of liquid crystal dropped when the liquid crystal dropping syringe was normal was set to 2.5 mg ⁇ 3% or less.
  • the upper limit of the liquid crystal drop amount of 2.575 mg of liquid crystal and the lower limit of liquid crystal drop amount of 2.425 mg of liquid crystal were dropped on the surface of the substrate 5 times each to measure the liquid crystal drop area. .
  • the same substrate was used to change the dropping position and examined. The results of this test are shown in Table 1.
  • the liquid crystal dropping area which is the allowable lower limit is smaller than 5.531 mm 2 5.
  • the liquid crystal dripping syringe can detect an abnormality by setting the liquid crystal dripping area, which is an allowable upper limit, to 7. Om m 2 which is larger than 6.442 mm 2 .
  • the force of dropping the liquid crystal at two locations inside the closed sealing material is not limited to this form, and the liquid crystal that is dropped inside the closed sealing material is at one location. There may be three or more places. Further, in this embodiment, the force that drops the liquid crystal at two locations inside the sealing material closed by moving the liquid crystal dropping syringe in the longitudinal direction of the guide rod Not limited to this form, the longitudinal direction of the guide rod The liquid crystal dropping syringe may be moved in a direction perpendicular to the liquid crystal and the liquid crystal may be dropped at two locations inside the closed sealing material.
  • the photographing means in the present embodiment is a force that is formed to photograph the liquid crystal disposed inside the adjacent closed sealing material different from the liquid crystal to be dropped.
  • the liquid crystal to be dropped and the liquid crystal to be photographed may be the same.
  • the photographing means removes the area inside the closed sealing material where the liquid crystal is dropped. You may form so that it may image
  • one CCD camera is formed as the photographing means.
  • the present invention is not limited to this, and a plurality of cameras are formed so as to photograph a plurality of locations at once. It does not matter.
  • the photographing means may be formed so that a single camera can photograph a plurality of locations at a time.
  • there is one liquid crystal dropping syringe but it is not particularly limited to this form, and a plurality of liquid crystal dropping syringes may be formed.
  • the force with which the CCD camera is fixed to the liquid crystal dropping syringe is not particularly limited to this form, and the liquid crystal dropping syringe and the CCD camera may be formed to be independently movable. Absent. Even in this case, the CCD camera is preferably formed to be movable so as to follow the liquid crystal dropping syringe.
  • the force at which the CCD camera is formed as the photographing means is not limited to this open state, and may be formed by a CMOS (Complementary Metal Oxide Semiconductor) camera, for example! /.
  • CMOS Complementary Metal Oxide Semiconductor
  • the image processing computer detects the abnormality of the liquid crystal dropping syringe by comparing the taken liquid crystal dropping area with the reference value.
  • the present invention is not limited to this embodiment.
  • a photographed image may be displayed on a monitor as a display unit so that a human can determine whether the liquid crystal dropping syringe is abnormal.
  • the present invention can be advantageously applied to the manufacture of a liquid crystal display panel.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

La présente invention concerne un appareil de fabrication d'écran d'affichage à cristaux liquides comprenant : une seringue (2) qui permet d'injecter le cristal liquide (6a) ; une caméra CCD (4) qui photographie un cristal liquide injecté (6b) ; un ordinateur de traitement d'images (5) qui analyse l'image du cristal liquide (6b) pour détecter toute anomalie de la seringue d'injection de cristal liquide (2).
PCT/JP2005/022537 2005-01-13 2005-12-08 Appareil et procede de fabrication d'ecran d'affichage a cristaux liquides WO2006075462A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-006641 2005-01-13
JP2005006641 2005-01-13

Publications (1)

Publication Number Publication Date
WO2006075462A1 true WO2006075462A1 (fr) 2006-07-20

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PCT/JP2005/022537 WO2006075462A1 (fr) 2005-01-13 2005-12-08 Appareil et procede de fabrication d'ecran d'affichage a cristaux liquides

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639592A (zh) * 2008-07-28 2010-02-03 塔工程有限公司 确认液晶液滴没有滴落的方法和实施该方法的液晶涂布机
CN102460289A (zh) * 2009-05-25 2012-05-16 夏普株式会社 液晶滴下装置和液晶滴下的监视方法
WO2017049863A1 (fr) * 2015-09-25 2017-03-30 京东方科技集团股份有限公司 Système de remplissage de cristaux liquides par gouttes et procédé de commande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004122086A (ja) * 2002-10-07 2004-04-22 Shibaura Mechatronics Corp 液状物質滴下装置および方法
JP2004344743A (ja) * 2003-05-21 2004-12-09 Seiko Epson Corp 液状体の塗布方法およびその装置、電気光学装置、ならびに電子機器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004122086A (ja) * 2002-10-07 2004-04-22 Shibaura Mechatronics Corp 液状物質滴下装置および方法
JP2004344743A (ja) * 2003-05-21 2004-12-09 Seiko Epson Corp 液状体の塗布方法およびその装置、電気光学装置、ならびに電子機器

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639592A (zh) * 2008-07-28 2010-02-03 塔工程有限公司 确认液晶液滴没有滴落的方法和实施该方法的液晶涂布机
CN102460289A (zh) * 2009-05-25 2012-05-16 夏普株式会社 液晶滴下装置和液晶滴下的监视方法
JP5165790B2 (ja) * 2009-05-25 2013-03-21 シャープ株式会社 液晶滴下装置および液晶滴下のモニタ方法
CN102460289B (zh) * 2009-05-25 2015-03-25 夏普株式会社 液晶滴下装置和液晶滴下的监视方法
WO2017049863A1 (fr) * 2015-09-25 2017-03-30 京东方科技集团股份有限公司 Système de remplissage de cristaux liquides par gouttes et procédé de commande
US10254594B2 (en) 2015-09-25 2019-04-09 Boe Technology Group Co., Ltd. Liquid crystal drop filling system and control method

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