WO2020186559A1 - Système de détection de pelage et procédé de détection de pelage pour écran à cristaux liquides - Google Patents

Système de détection de pelage et procédé de détection de pelage pour écran à cristaux liquides Download PDF

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Publication number
WO2020186559A1
WO2020186559A1 PCT/CN2019/081343 CN2019081343W WO2020186559A1 WO 2020186559 A1 WO2020186559 A1 WO 2020186559A1 CN 2019081343 W CN2019081343 W CN 2019081343W WO 2020186559 A1 WO2020186559 A1 WO 2020186559A1
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WO
WIPO (PCT)
Prior art keywords
alignment film
substrate
peeling
image acquisition
liquid crystal
Prior art date
Application number
PCT/CN2019/081343
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English (en)
Chinese (zh)
Inventor
杜轩
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Publication of WO2020186559A1 publication Critical patent/WO2020186559A1/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

Definitions

  • the invention relates to the field of display technology, and in particular to a peeling detection system and a method for peeling a liquid crystal panel.
  • LCD Liquid Crystal Display
  • Most of the existing liquid crystal display devices generally include: a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates. There are many small vertical and horizontal wires between the two glass substrates.
  • the liquid crystal molecules are controlled to change direction by powering on or not to refract the light of the backlight module. Come out to produce the picture.
  • the LCD panel is made of color film (CF, Color Filter) substrate, thin film transistor (TFT, Thin Film Transistor) substrate, liquid crystal (LC, Liquid Crystal) and seal (seal) sandwiched between the color film substrate and the thin film transistor substrate.
  • the main function of the seal is to use its own viscosity to bond the color film substrate and the thin film transistor substrate
  • the combination is fixed to protect the liquid crystal from external water vapor and impurities, and prevent the liquid crystal from flowing out.
  • an alignment film made of polyimide (PI) is set on the side close to the color filter substrate and the array substrate to align the liquid crystal.
  • the sealant and the alignment film are present. Overlap (overlap) situation.
  • the prior art usually conducts peeling detection, specifically, peeling the array substrate and the color filter substrate. It also detects and analyzes the peeling interface to determine the position of the peeling interface, so as to provide a clear direction for subsequent material interface adhesion improvement.
  • the usual practice is to use an optical microscope to detect the peeling interface, but in a liquid crystal panel with a narrow frame, because the alignment film overlaps the sealant, peeling may occur between the alignment film and the sealant, or between the alignment film and the sealant. Between the array substrate or the color filter substrate, but because the alignment film is thin, it is not easy to view under an optical microscope, which affects the accurate judgment of the peeling position.
  • the purpose of the present invention is to provide a peeling detection system that can accurately and effectively determine the peeling position of the liquid crystal panel.
  • Another object of the present invention is to provide a method for detecting peeling of a liquid crystal panel, which can accurately and effectively determine the peeling position of the liquid crystal panel.
  • the present invention first provides a peeling detection system, including an image acquisition device and an alignment film removal device;
  • the alignment film removing device includes a heating stage and an alignment film removing droplet device located above the heating stage; the image acquisition device is located above the heating stage; the alignment film removing droplet device is used for dropping the alignment film Remove liquid.
  • the peeling detection system also includes a driving device; the driving device is connected to the image acquisition device and the alignment film removing droplet removing device, and is used to drive the image capturing device and the alignment film removing droplet removing device to move.
  • the driving device is a moving gantry.
  • the image acquisition device is an optical microscope
  • the heating stage is a quartz heating stage.
  • the alignment film removal device further includes an alignment film removal liquid supply device connected to the alignment film removal droplet dropping device; the alignment film removal solution supply device is used to provide an alignment film removal solution to the alignment film removal droplet dropping device;
  • the alignment film removal liquid is a liquid containing hypochlorous acid groups.
  • the present invention also provides a peeling detection method of a liquid crystal panel, which includes the following steps:
  • Step S1 providing a peeling detection system and a liquid crystal panel
  • the peeling detection system includes an image acquisition device and an alignment film removal device; the alignment film removal device includes a heating stage, an alignment film removal droplet device located above the heating stage; the image acquisition device is located on the heating stage Above
  • the liquid crystal panel includes a first substrate and a second substrate arranged oppositely, a sealant arranged between the first substrate and the second substrate, and an alignment film arranged between the sealant and the second substrate;
  • Step S2 Peel the sealant from the second substrate, and the position of the second substrate corresponding to the sealant forms a peeling area;
  • Step S3 placing the second substrate on the heating stage so that the side of the second substrate close to the sealant faces upwards before peeling off the sealant;
  • Step S4 using the image acquisition device to perform the first image acquisition on the peeling area of the second substrate;
  • Step S5 using the aligning film removing droplet device to drop the aligning film removing liquid onto the peeling area of the second substrate, and heating the second substrate with the heating stage after a preset time interval;
  • Step S6 Perform a second image acquisition on the peeling area of the second substrate by using the image acquisition device;
  • Step S7 Compare the image obtained in the first image acquisition with the image obtained in the second image acquisition. If the image obtained in the first image acquisition is consistent with the image obtained in the second image acquisition, it is determined that the alignment film is The second substrate is peeled off, otherwise it is determined that the alignment film and the sealant peel off.
  • One of the first substrate and the second substrate is a color filter substrate, and the other is a thin film transistor substrate.
  • the peeling detection system further includes a driving device; the driving device is connected with the image acquisition device and the alignment film removing droplet removing device;
  • step S4 it further includes the step of using a driving device to drive the image capture device and the alignment film removing and droplet removing device to move above the peeling area of the second substrate;
  • the driving device is a moving gantry.
  • the image acquisition device is an optical microscope
  • the heating stage is a quartz heating stage.
  • the alignment film removal device further includes an alignment film removal liquid supply device connected to the alignment film removal droplet dropping device;
  • the alignment film removal liquid supply device is used to provide the alignment film removal liquid droplet down device with the alignment film removal liquid
  • the alignment film is made of polyimide;
  • the alignment film removal liquid is a liquid containing hypochlorous acid groups;
  • the preset duration in step S5 is 2-3 minutes.
  • the peeling detection system of the present invention includes an image acquisition device and an alignment film removal device
  • the alignment film removal device includes a heating stage and an alignment film removal droplet drop device.
  • the two captured images are compared, and if they are consistent, the alignment film and The second substrate is peeled off, otherwise it is determined that the alignment film and the sealant peel off, and the peeling position of the liquid crystal panel can be accurately and effectively determined.
  • the peeling detection method of the liquid crystal panel of the present invention can accurately and effectively determine the peeling position of the liquid crystal panel.
  • Figure 1 is a schematic diagram of the structure of the peeling detection system of the present invention.
  • step S1 of the method for detecting peeling of a liquid crystal panel of the present invention is a schematic diagram of the structure of the liquid crystal panel provided in step S1 of the method for detecting peeling of a liquid crystal panel of the present invention
  • step S2 is a schematic diagram of step S2 of an embodiment of the peeling detection method of a liquid crystal panel of the present invention
  • step S5 is a schematic diagram of step S5 of an embodiment of the peeling detection method of a liquid crystal panel of the present invention.
  • FIG. 7 is a schematic diagram of step S6 of an embodiment of the peeling detection method of a liquid crystal panel of the present invention.
  • the present invention provides a peeling detection system, including an image acquisition device 10 And alignment film removal device 20 .
  • the alignment film removing device 20 Including heating stage twenty one , Located on the heating platform twenty one
  • the upper alignment film removes the droplet device twenty two .
  • the image acquisition device 10 On the heating stage twenty one Above. Device for removing droplets of the alignment film twenty two Used to drop the alignment film removal solution.
  • the peeling detection system also includes a driving device 30 .
  • the driving device 30 With image capture device 10 And aligning film removing droplet removing device twenty two Are connected to drive the image capture device 10 And aligning film removing droplet removing device twenty two mobile.
  • the driving device 30 For the mobile gantry.
  • the image acquisition device 10 For the optical microscope.
  • the heating stage twenty one Heating stage for quartz.
  • the alignment film removal device 20 also includes droplet removal device with alignment film twenty two Connected alignment film removing liquid supply device twenty three .
  • Alignment membrane removal liquid supply device twenty three Device for removing droplets from alignment film twenty two Provide alignment film removal solution.
  • the alignment film removal liquid is a liquid containing hypochlorous acid groups.
  • the peeling detection system of the present invention is used for liquid crystal panel 90 Perform a peel test.
  • the liquid crystal panel 90 Including the first substrate arranged oppositely 91 And the second substrate 92 , Located on the first substrate 91 With the second substrate 92 Box glue 93 And located in the frame glue 93 With the second substrate 92 Alignment film made of polyimide material 94 .
  • First substrate 91 And the second substrate 92 One of them is a color film substrate, and the other is a thin film transistor substrate.
  • the illustrated embodiment is taken as an example, and the peeling detection system of the present invention is used for liquid crystal panel 90
  • the specific process of peeling detection is:
  • the picture 5 In the illustrated embodiment, due to the alignment film 94 Stay on the second substrate 92 Surface, to the second substrate 92 Peel zone 921 There is an alignment film in the image collected during the first image acquisition 94 .
  • the sealant is 93 With the second substrate 92 Alignment film after peeling 94 Stay in the box glue 93 Surface, there is no alignment film in the image collected in the first image collection 94 .
  • the alignment film to remove the droplet device twenty two To the second substrate 92 Peel zone 921 Drop the alignment film removal solution, in the figure 6
  • the alignment film 94 And stripping zone 921 The corresponding part reacts with the alignment film removal solution after a preset period of time (for example 2-3 Minutes), using the heating stage twenty one To the second substrate 92 Heat it so that the alignment film 94
  • the remaining liquid after reacting with the alignment film removal liquid is volatilized, so that the second substrate 92 Peel zone 921 No alignment film 94 .
  • the sealant is 93 With the second substrate 92 Alignment film after peeling 94 Stay in the box glue 93 Surface, the second substrate after this step is over 92 Peel zone 921 No alignment film 94 .
  • the peeling detection system of the present invention can also determine whether there is peeling of the black matrix on the color filter substrate side from the color filter substrate. Specifically, the color filter substrate peeled from the thin film transistor substrate is placed on the heating stage. twenty one ⁇ , using the image acquisition device 10 Specifically, an optical microscope photographs the black matrix area on the color filter substrate. If there is a light-transmitting area in the black matrix area, it means that the black matrix and the substrate are peeled off.
  • the present invention also provides a peeling detection method of a liquid crystal panel, including the following steps:
  • step S1 Please refer to the figure 1 And figure 3 , Provide peeling detection system and LCD panel 90 .
  • the peeling detection system includes an image acquisition device 10 And alignment film removal device 20 .
  • the alignment film removing device 20 Including heating stage twenty one , Located on the heating platform twenty one
  • the upper alignment film removes the droplet device twenty two .
  • the image acquisition device 10 On the heating stage twenty one Above.
  • the liquid crystal panel 90 Including the first substrate arranged oppositely 91 And the second substrate 92 , Located on the first substrate 91 With the second substrate 92 Box glue 93 And located in the frame glue 93 With the second substrate 92 Alignment film 94 .
  • the peeling detection system also includes a driving device 30 .
  • the driving device 30 With image capture device 10 And aligning film removing droplet removing device twenty two Are connected to drive the image capture device 10 And aligning film removing droplet removing device twenty two mobile.
  • the driving device 30 For the mobile gantry.
  • the image acquisition device 10 For the optical microscope.
  • the heating stage twenty one Heating stage for quartz.
  • the alignment film removal device 20 also includes droplet removal device with alignment film twenty two Connected alignment film removing liquid supply device twenty three .
  • the first substrate 91 And the second substrate 92 One is a color filter substrate, and the other is a thin film transistor substrate.
  • the alignment film 94 The material is polyimide.
  • step S2 Please refer to the figure 4 ,
  • the position forms the peeling zone 921 .
  • step S3 Please refer to the figure 5 ,
  • the second substrate 92 Place on the heating stage twenty one To make the second substrate 92 In with box glue 93 Near the frame glue before peeling off 93 The side is facing up.
  • step S4 Please refer to the figure 5 , Using image capture device 10 To the second substrate 92 Peel zone 921 Perform the first image acquisition.
  • the steps S4 Previously also included the use of drive devices 30 Drive image capture device 10 And aligning film removing droplet removing device twenty two Move to the second substrate 92 Peel zone 921 The steps above.
  • step S5 Please refer to the figure 6 , Using the alignment film to remove the droplet device twenty two To the second substrate 92 Peel zone 921 Drop the alignment film removal liquid, and use the heating stage after a preset time interval twenty one To the second substrate 92 Heat up.
  • the steps S5 The use of the alignment film removal liquid supply device twenty three Droplet removing device for alignment film twenty two Provide alignment film removal solution.
  • the alignment film removal liquid is a liquid containing hypochlorous acid groups.
  • the steps S5 The default duration in is 2-3 minute.
  • the alignment film 94 due to the alignment film 94 Stay on the second substrate 92 Surface to the second substrate 92 Peel zone 921 After dropping the alignment film removal solution, the alignment film 94 And stripping zone 921 The corresponding part reacts with the alignment film removal solution. After a preset time interval, use the heating stage twenty one To the second substrate 92 Heat it so that the alignment film 94 The remaining liquid after reacting with the alignment film removal liquid is volatilized, so that the second substrate 92 Peel zone 921 No alignment film 94 . In other embodiments of the present invention, if the sealant is 93 With the second substrate 92 Alignment film after peeling 94 Stay in the box glue 93 Surface, the second substrate after this step is over 92 Peel zone 921 No alignment film 94 .
  • step S6 Please refer to the figure 7 , Using image capture device 10 To the second substrate 92 Peel zone 921 Perform the second image acquisition.
  • step S7 Compare the image obtained in the first image acquisition with the image obtained in the second image acquisition, if the image obtained in the first image acquisition is consistent with the image obtained in the second image acquisition, the alignment film is determined 94 With the second substrate 92 Peel off, otherwise determine the alignment film 94 With box glue 93 Peel off.
  • the peeling detection system of the present invention includes an image acquisition device and an alignment film removal device
  • the alignment film removal device includes a heating stage and an alignment film removal droplet drop device.
  • the two captured images are compared, and if they are consistent, the alignment film and The second substrate is peeled off, otherwise it is determined that the alignment film and the sealant peel off, and the peeling position of the liquid crystal panel can be accurately and effectively determined.
  • the peeling detection method of the liquid crystal panel of the present invention can accurately and effectively determine the peeling position of the liquid crystal panel.

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

Abstract

L'invention concerne un système de détection de pelage et un procédé de détection de pelage pour un écran à cristaux liquides (90). Le système de détection de pelage comprend un appareil de collecte d'image (10) et un appareil d'élimination de film d'alignement (20), l'appareil d'élimination de film d'alignement (20) comprenant un étage de chauffage (21) et un appareil d'égouttement d'extracteur de film d'alignement (22). Lorsqu'une détection de pelage est effectuée sur l'écran à cristaux liquides (90), un second substrat (92) de l'écran à cristaux liquides (90) est pelé d'un joint d'étanchéité (93), l'appareil de collecte d'image (10) est utilisé pour photographier une zone de pelage (921) du second substrat (92), puis l'appareil d'égouttement d'extracteur de film d'alignement (22) est utilisé pour faire goutter un extracteur de film d'alignement sur la zone de pelage (921) du second substrat (92) et l'étage de chauffage (21) est utilisé pour chauffer le second substrat (92), puis l'appareil de collecte d'image (10) est utilisé pour photographier la zone de pelage (921) du second substrat (92) une seconde fois, des images obtenues au moyen des deux instances de photographie sont comparées, et si les images sont cohérentes, il est déterminé qu'un film d'alignement (94) est pelé du second substrat (92), sinon, il est déterminé que le film d'alignement (94) est pelé du joint d'étanchéité (93) ; par conséquent, la position de pelage de l'écran à cristaux liquides (90) peut être déterminée avec précision et efficacement.
PCT/CN2019/081343 2019-03-20 2019-04-03 Système de détection de pelage et procédé de détection de pelage pour écran à cristaux liquides WO2020186559A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910214419.XA CN109739035B (zh) 2019-03-20 2019-03-20 剥离检测系统及液晶面板的剥离检测方法
CN201910214419.X 2019-03-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041065A (ko) * 2001-11-19 2003-05-23 엘지.필립스 엘시디 주식회사 액정표시장치의 제조방법
WO2008028553A1 (fr) * 2006-09-02 2008-03-13 Merck Patent Gmbh Procédé de faisceaux de particules pour l'alignement de mésogènes radioactifs
CN102103291A (zh) * 2010-12-17 2011-06-22 深圳市华星光电技术有限公司 配向膜修补设备及其修补方法
CN104820302A (zh) * 2015-05-19 2015-08-05 合肥京东方光电科技有限公司 取向膜检测装置及方法
CN105068284A (zh) * 2015-08-28 2015-11-18 深圳市华星光电技术有限公司 显示面板的黑矩阵附着力检测方法及系统
CN106198561A (zh) * 2016-09-30 2016-12-07 京东方科技集团股份有限公司 一种显示基板的异物检测方法和修复方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101995671A (zh) * 2009-08-28 2011-03-30 北京京东方光电科技有限公司 液晶显示面板边缘缺陷的测试系统及其测试方法
CN106198567A (zh) * 2015-05-06 2016-12-07 法国圣戈班玻璃公司 光学检测方法、光学检测装置以及光学检测系统
CN104923534B (zh) * 2015-05-22 2017-11-14 合肥京东方光电科技有限公司 面板配向膜清除设备
CN107577089A (zh) * 2017-09-18 2018-01-12 惠科股份有限公司 一种显示面板的制程及制程装置
CN107607595B (zh) * 2017-09-21 2020-05-12 京东方科技集团股份有限公司 滤光片检测装置及方法
CN107907059B (zh) * 2017-11-27 2019-12-06 京东方科技集团股份有限公司 一种板层剥离的检测方法和检测装置、激光检测设备
CN108181741B (zh) * 2018-01-05 2021-01-26 京东方科技集团股份有限公司 一种显示面板膜层剥离位置的测试装置及其方法
CN109410805A (zh) * 2018-10-30 2019-03-01 苏州华兴源创科技股份有限公司 一种显示面板检测系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041065A (ko) * 2001-11-19 2003-05-23 엘지.필립스 엘시디 주식회사 액정표시장치의 제조방법
WO2008028553A1 (fr) * 2006-09-02 2008-03-13 Merck Patent Gmbh Procédé de faisceaux de particules pour l'alignement de mésogènes radioactifs
CN102103291A (zh) * 2010-12-17 2011-06-22 深圳市华星光电技术有限公司 配向膜修补设备及其修补方法
CN104820302A (zh) * 2015-05-19 2015-08-05 合肥京东方光电科技有限公司 取向膜检测装置及方法
CN105068284A (zh) * 2015-08-28 2015-11-18 深圳市华星光电技术有限公司 显示面板的黑矩阵附着力检测方法及系统
CN106198561A (zh) * 2016-09-30 2016-12-07 京东方科技集团股份有限公司 一种显示基板的异物检测方法和修复方法

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