WO2015099370A1 - 곡면 패널 디스플레이 결함 리페어 장치 - Google Patents

곡면 패널 디스플레이 결함 리페어 장치 Download PDF

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Publication number
WO2015099370A1
WO2015099370A1 PCT/KR2014/012616 KR2014012616W WO2015099370A1 WO 2015099370 A1 WO2015099370 A1 WO 2015099370A1 KR 2014012616 W KR2014012616 W KR 2014012616W WO 2015099370 A1 WO2015099370 A1 WO 2015099370A1
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WO
WIPO (PCT)
Prior art keywords
link
stage
curve display
movable
coupled
Prior art date
Application number
PCT/KR2014/012616
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English (en)
French (fr)
Korean (ko)
Inventor
박훈
김용민
장동식
이승조
Original Assignee
주식회사 코윈디에스티
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.)
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Publication date
Application filed by 주식회사 코윈디에스티 filed Critical 주식회사 코윈디에스티
Priority to CN201480070618.3A priority Critical patent/CN106062857B/zh
Publication of WO2015099370A1 publication Critical patent/WO2015099370A1/ko

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    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to a repair apparatus for removing defects in a display panel having curvature on a surface thereof.
  • the panel used in the existing LCD field is a type of flat panel display, which has been developed mainly for large size and light weight.
  • AMOLED the development of flexible displays has been made in recent years.
  • Flexible displays can be divided into several levels of technology, the first of which is an unbreakable display. The next step is the curved display, which lacks repair technology that eliminates defects in the manufacturing of curved displays. Therefore, there is a need for a repair technology for mass production of curved displays.
  • Selective thin film processing technology can be applied to repair the defects present in the TFT substrate stage of the AMOLED panel manufactured by the curved display. Since the multilayer thin film structure has a thickness of several tens of nm to hundreds of nm, there is a possibility that damage may occur in a region other than the target layer to be processed if accurate machining is not performed. Therefore, it is essential to precisely control the size and power of the laser beam because defects should not be generated in areas other than the object layer during processing.
  • the laser beam uses quantum energy for processing and generally controls intensity by focusing the beam. Normal processing is possible when the laser beam is incident at right angles to the surface of the object to be processed in defect processing, but in the case of a curve display, there is a problem in that the intensity of the laser beam is different for each position in the curve display due to the angle of the substrate itself.
  • the irradiated laser beam may not satisfy all of the shape, size, and distribution depending on the processing purpose.
  • the present invention is to provide a technique for solving the above-described problems that may occur when the deflection of the curved display.
  • an apparatus provided according to one aspect of the present invention includes a link stage driven according to the radius of curvature of the curved display.
  • 'link' means that the structure for controlling the position and position of the curve display includes a link structure.
  • the link stage may be configured to interlock with a laser beam for repairing a defect of the curved display.
  • a stage provided according to one aspect of the invention is such that when the laser beam is directed to a first point of the curve display to repair a defect of the curve display, the laser beam is perpendicular to the first point. And a driver adapted to control the attitude of the inspection stage to be incident.
  • the driving unit the first link (11); A fourth link (14) for mounting the curve display; A first movable link, one end of which is coupled to a first point of the fourth link 14 by a third rotary joint 23, and the other end of which is coupled to the first link by a first rotary joint 21. Part 41; And a second movable link part 42 having one end coupled to a second point of the fourth link by a fourth rotary joint 24 and the other end coupled to the first link.
  • the other end of the second movable link portion may be fixedly coupled to the first link.
  • the posture of the stage may be changed by controlling the first overall length of the first movable link portion and the second overall length of the second movable link portion.
  • the first movable link portion includes a second link 12 and a third link 13 coupled to each other to allow a piston movement
  • the second link is connected to the first rotary joint
  • the third link may be connected to the third rotary joint.
  • the second link or the third link may be provided with a second linear actuator, and the third link may be configured to perform a piston movement with respect to the second link by the second linear actuator.
  • the second movable link portion includes a fifth link 15 coupled to the portion 111 of the first link so as to allow piston movement with each other, and the one end of the second movable link portion is formed of the first link. 4 can be connected to the rotary joint.
  • a first linear actuator is provided in the portion or the fifth link of the first link, and the fifth link is configured to move the piston relative to the portion of the first link by the first linear actuator.
  • the driving unit may include a mounting unit 103 configured to mount the curve display; And a rotating unit configured to rotate the mounting unit using a vertical direction (y axis) with respect to the optical axis of the laser beam provided with respect to the curve display as the rotation axis.
  • FIG. 1 (a), (b) and (c) are diagrams for explaining a problem that may occur when irradiating a laser beam to a curve display in order to solve a defect of the curve display.
  • FIG. 2 is a view for explaining the linked stage 1 according to the first embodiment of the present invention.
  • 3A and 3B show examples of two positions provided by the linked stage described in FIG.
  • FIG. 4 shows a configuration of a repair apparatus according to a second embodiment of the present invention.
  • 5A and 5B are diagrams for explaining the inspection stage 103 according to the third embodiment of the present invention.
  • FIG. 6 is a perspective view illustrating a state in which a curve display is mounted on the link stage shown in FIG. 2.
  • FIG. 1 (a), (b) and (c) are diagrams for explaining a problem that may occur when irradiating a laser beam to a curve display in order to solve a defect of the curve display.
  • the curve display 2 to be inspected is fixed on the inspection stage 50. It is assumed that the mounting surface of the inspection stage 50 is present on the x-y plane.
  • a laser optical system 3 for irradiating a laser beam is provided on the inspection stage 50 so as to irradiate the laser beams 5, 5 ′ in the vertical direction toward the inspection stage 50 plane. That is, the laser beams 5, 5 'are always irradiated along the z axis direction.
  • the effect of the first defect can be eliminated by irradiating the laser beam 5 to the first defect. If there is a second defect at the second position 51 'of the curve display 2, the effect of the second defect can be eliminated by irradiating the laser beam 5' to the second defect.
  • the laser optical system 3 is provided so that the laser beams 5, 5 ′ are always irradiated perpendicular to the surface of the inspection stage 50. Therefore, in order to move the irradiation position of the laser beam from the first position 51 to the second position 51 ', the laser optical system 3 is positioned at the position 31' at position 31 along the horizontal direction, that is, the x and y planes. ), Or the inspection stage 50 itself moves horizontally with the curve display 2, or the curve display 2 must move horizontally on the inspection stage 50.
  • FIG. 1 shows profiles of the distribution of beam intensities irradiated on the surfaces of the first position 51 and the second position 51 'of the curve display 2, respectively.
  • the horizontal axis and the vertical axis represent x and y axes, respectively.
  • the intensity of the laser beam 5 is measured along the x-axis and y-axis directions along the Gaussian distribution.
  • the intensity of the laser beam 5 ' is nonuniform. appear.
  • the spatial nonuniformity of the laser beam intensity as shown in FIG. 1C is the angle between the second tangent 91 'and the laser beam 5' with respect to the surface of the curve display 2 at the second position 51 '. ⁇ ') does not form 90 °.
  • the x and y axis symmetry of the laser beam intensity as shown in FIG. 1B shows that the first tangent 91 and the laser beam 5 with respect to the surface of the curve display 2 at the first position 51 are separated. It can be maintained because the angle ⁇ 'makes 90 degrees.
  • FIG. 2 is a view for explaining the linked stage 1 according to the first embodiment of the present invention.
  • the linked stage 1 shown in FIG. 2 is a biaxial link type stage having two movable link portions 41 and 42.
  • the linked stage 1 can be applied to keep the angle between the optical axis of the laser optics and the surface of the laser irradiation point on the curve display at a constant vertical position at any position on the curve display. Therefore, the profile of the laser beam can be constantly irradiated at any position on the curve display.
  • the linked stage 1 shown in FIG. 2 can be used especially for curve displays with cylinder shaped surfaces.
  • the link stage 1 may be largely comprised of five link parts 11 to 15 and five joint parts 21 to 25.
  • Five link units 11 to 15 include a first link 11, a second link 12, a third link 13, a fourth link 14, and a fifth link 15.
  • the four joint parts 21 to 25 may include a first joint 21, a second joint 22, a third joint 23, a fourth joint 24, and a fifth joint 25.
  • the first link 11 is a base
  • the fourth link 14 is a mounting portion to which a jig unit 69 capable of mounting a curve display is formed or attached.
  • the first joint 21 is provided between the first link 11 and the second link 12, and the second joint 22 is formed between the second link 12 and the third link 13.
  • the third joint 23 is formed between the third link 13 and the fourth link 14, and the fourth joint 24 is the fourth link 14 and the fifth link 15.
  • a fifth joint 25 is formed between the fifth link 15 and the first link 11.
  • the first joint 21, the third joint 23, and the fourth joint 24 may be rotational joints, and the second joint 22 and the fifth joint 25 may be sliding joints.
  • the first link actuators 11 and 111 and / or the fifth link 15 may be provided with a first linear actuator.
  • the fifth link 15 may be connected to the first movable part of the first linear actuator to perform sliding movement or piston movement with respect to the first links 11 and 111.
  • the second link 12 and / or the third link 13 may be provided with a second linear actuator.
  • the third link 13 may be connected to the second movable part of the second linear actuator to perform sliding movement or piston movement with respect to the second link 12.
  • the axis formed by the second link 12 and the third link 13 is defined as the first shaft 41 or the first movable link portion 41, and the fifth link 15 (and the first link ( 11, 111) can be defined as the second shaft 42 or the second movable link portion 42.
  • the first shaft 41 and the second shaft 42 may move in opposite directions to form an inclined surface in the jig unit. That is, while controlling the overall length of the first shaft 41 to increase, the entire length of the second shaft 42 is controlled to form a slope in the first direction, or the entire length of the first shaft 41 is reduced. It is possible to form the inclined surface in the second direction opposite to the first direction by controlling the total length of the second shaft 42 to be extended while controlling so as to be controlled.
  • Degree of Freedom (DOF) of the linked stage according to FIG. 2 may be calculated as follows.
  • the above-described two-axis linked stage is a system capable of two-axis control by two actuators. That is, the biaxial link-type stage 1 shown in FIG. 2 can produce all possible postures by controlling only the first linear actuator and the second linear actuator.
  • the length of the first shaft 41 and the second shaft 42 is adjusted by controlling the first linear actuator and the second laser actuator, the first joint 21, the third joint 23, and the third joint The four joints 24 thus rotate naturally.
  • the above-described two-axis linked stage has a merit that the control accuracy is very high because the position error occurring in each axis is not accumulated by implementing the parallel structure.
  • the inclination of the first axis 41 with respect to the first link 11 varies depending on the position of the linked stage 1, but the second axis 42 with respect to the first link 11. ) May not vary depending on the position of the linked stage 1.
  • 3A and 3B show examples of two positions provided by the linked stage described in FIG.
  • FIG. 3A shows the first position of the linked stage 1 in the case where the point to be repaired by the laser optical system 3 exists in the first position 51 which is the center portion of the curve display 2.
  • the total length of the first shaft 41 and the second shaft 42 may be the same.
  • the surface of the fourth link 14 serving as a mounting portion on which the curve display is mounted may be perpendicular to the optical axis of the laser beam irradiated from the optical system 3. Since the tangent 91 to the surface of the curve display 2 at the first position 51 to be repaired in this embodiment can be orthogonal to the optical axis of the laser beam, the laser beam as shown in FIG. A profile of intensity can be provided in the desired form on the surface of the curve display 2.
  • FIG. 3B shows the second position of the linked stage 1 in the case where the point to be repaired by the optical system 3 exists at the second position 51 ′, which is the right part of the curve display 2. .
  • the total length of the first shaft 41 in the second position may be controlled such that the total length of the second shaft 42 is longer.
  • the third link 13 may slide out of the second link 12 by the second linear actuator.
  • the fifth link 15 may slide into the first links 11 and 111 by the first linear actuator.
  • the position of the optical system 3 is controlled to move to the right.
  • the optical system 3 may translate and move, and at this time, the direction of the optical axis of the laser beam irradiated from the optical system 3 may not change.
  • the position of the optical system 3 may change in conjunction with the position of the link stage 1.
  • the surface of the fourth link 14 serving as the mounting portion is not perpendicular to the optical axis of the laser beam irradiated from the laser optical system 3.
  • the tangent 91 'to the surface of the curve display 2 at the second position 51' to be repaired may be orthogonal to the optical axis of the laser beam, the laser beam intensity as shown in FIG.
  • the profile of can be provided in the desired form on the surface of the curve display 2.
  • an isolator 71 may be formed or provided at the bottom of the linked stage 1 to remove vibrations from the outside.
  • the isolator 71 may be a vibration filter, for example.
  • the laser optical system 3 may be coupled to a first driving device (not shown) for translating the laser optical system 3 in the horizontal direction.
  • the link stage 1 is coupled with a second drive device (not shown) for translating the link stage 1 in the horizontal direction, or the fourth link 14 and the curve display 2.
  • the first driving device, the second driving device, and / or the third driving device may be configured such that the control device 85 may issue a moving command by wireless or wired.
  • the control device 85 controls the first drive device, the second drive device, and / or the third drive device, according to the defect position on the curve display 2, according to (1) the horizontal plane of the curve display.
  • the attitude of the stage may be controlled to change the inclination, and (2) the position of the laser optical system with respect to the stage may be controlled.
  • FIG. 4 shows a configuration of a repair apparatus according to a second embodiment of the present invention.
  • the repair apparatus shown in FIG. 4 may include a test stage 101 and a laser optical system 3. At this time, the inspection stage 101 is basically movable in the x and y axis directions.
  • the laser optical system ( 3) can irradiate the laser beam 5 in the direction perpendicular to the surface of the defect portion, thereby eliminating the influence of the defect at the first position 51.
  • the optical axis of the laser optical system 3 is rotated by a certain angle ( ⁇ 2 ⁇ -90 ⁇ ). To irradiate the laser beam 5 '.
  • ⁇ 2 ⁇ -90 ⁇ the optical axis of the laser optical system 3 is rotated by a certain angle ( ⁇ 2 ⁇ -90 ⁇ ).
  • the laser optical system 3 needs to be simply rotated. If not, however, not only the laser optical system 3 should be rotated, but also the inspection stage 101 must be moved along the z-axis direction so that the laser beam can be incident perpendicularly to the repair position.
  • the inspection stage 101 must be translated in the x, y, z direction in accordance with the position of the coupling of the curve display 2, and the laser optical system 3 must be rotationally controlled.
  • the rotation control of the laser optical system 3 should be made very precisely.
  • 5A and 5B are diagrams for explaining the inspection stage 103 according to the third embodiment of the present invention.
  • the inspection stage 103 may include a rotating part 57 for rotating the inspection stage 103 about the y axis.
  • the repair apparatus shown in FIGS. 5A and 5B may include an inspection stage 103 and a laser optical system 3.
  • the inspection stage 103 is basically capable of translational movement in the x and y axis directions, and is rotatable about the y axis.
  • the laser optical system ( 3) can irradiate the laser beam 5 in the direction perpendicular to the surface of the defect portion, thereby eliminating the influence of the defect at the first position 51.
  • the inspection stage 103 is rotated by the required angle [theta] 3 [deg.]. After translating as needed along the x and y axes, the effect of the defect site should be eliminated with the laser beam.
  • FIG. 6 is a perspective view illustrating a state in which a curve display is mounted on the link stage shown in FIG. 2. 2 to 5 illustrate only a part of the perspective views shown in FIG. 6.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Laser Beam Processing (AREA)
PCT/KR2014/012616 2013-12-23 2014-12-22 곡면 패널 디스플레이 결함 리페어 장치 WO2015099370A1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480070618.3A CN106062857B (zh) 2013-12-23 2014-12-22 曲面面板显示器的缺陷修复装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0160982 2013-12-23
KR1020130160982A KR20150073370A (ko) 2013-12-23 2013-12-23 곡면 패널 디스플레이 결함 리페어 장치

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WO2015099370A1 true WO2015099370A1 (ko) 2015-07-02

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KR (1) KR20150073370A (zh)
CN (1) CN106062857B (zh)
TW (1) TWI521260B (zh)
WO (1) WO2015099370A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3424731B1 (de) * 2017-07-03 2022-12-28 Bundesdruckerei GmbH Vorrichtung und verfahren zur positionierung eines dokumentenkörpers sowie vorrichtung und verfahren zur herstellung eines dokumentenkörpers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107842687A (zh) * 2017-09-16 2018-03-27 合肥惠科金扬科技有限公司 一种曲面液晶显示装置的支撑机构
KR102142890B1 (ko) * 2018-11-19 2020-08-10 (주)코멕스카본 곡면 가공방법 및 그 방법으로 가공된 가공물
CN110730611B (zh) * 2019-09-30 2020-12-08 云谷（固安）科技有限公司 曲面显示屏绑定装置及曲面显示屏绑定方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH09129677A (ja) * 1995-10-27 1997-05-16 Matsushita Electric Ind Co Ltd 電子部品搭載装置
JP2006049384A (ja) * 2004-07-30 2006-02-16 Laserfront Technologies Inc ガントリー型ｘｙステージ
KR20080042200A (ko) * 2006-11-09 2008-05-15 참앤씨(주) 평판디스플레이 패널의 리페어 장치
KR101127753B1 (ko) * 2011-12-22 2012-03-21 서진석 평면 또는 곡면 반도체 패턴 형성방법 및 이를 이용한 반도체기판의 패턴 형성장치

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JP2648883B2 (ja) * 1990-05-21 1997-09-03 エヌティエヌ 株式会社 レーザ加工装置
JP4243500B2 (ja) * 2003-03-12 2009-03-25 日本Ｃｍｏ株式会社 ディスプレイパネルの欠陥検査システム
KR101136286B1 (ko) * 2005-10-17 2012-04-19 엘지디스플레이 주식회사 평판표시장치 및 그 화질제어방법
JP2010091713A (ja) * 2008-10-07 2010-04-22 Panasonic Corp レーザー変位計、当該レーザー変位計を使用した検査装置、及び検査方法、当該レーザー変位計を使用したディスプレイパネルの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09129677A (ja) * 1995-10-27 1997-05-16 Matsushita Electric Ind Co Ltd 電子部品搭載装置
JP2006049384A (ja) * 2004-07-30 2006-02-16 Laserfront Technologies Inc ガントリー型ｘｙステージ
KR20080042200A (ko) * 2006-11-09 2008-05-15 참앤씨(주) 평판디스플레이 패널의 리페어 장치
KR101127753B1 (ko) * 2011-12-22 2012-03-21 서진석 평면 또는 곡면 반도체 패턴 형성방법 및 이를 이용한 반도체기판의 패턴 형성장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3424731B1 (de) * 2017-07-03 2022-12-28 Bundesdruckerei GmbH Vorrichtung und verfahren zur positionierung eines dokumentenkörpers sowie vorrichtung und verfahren zur herstellung eines dokumentenkörpers

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CN106062857A (zh) 2016-10-26
TW201531765A (zh) 2015-08-16
CN106062857B (zh) 2019-03-08
TWI521260B (zh) 2016-02-11
KR20150073370A (ko) 2015-07-01

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