CN108957823B - Reading device for display panel - Google Patents
Reading device for display panel Download PDFInfo
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- CN108957823B CN108957823B CN201810922258.5A CN201810922258A CN108957823B CN 108957823 B CN108957823 B CN 108957823B CN 201810922258 A CN201810922258 A CN 201810922258A CN 108957823 B CN108957823 B CN 108957823B
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- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 239000000758 substrate Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000003550 marker Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- 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
- G02F1/133354—Arrangements for aligning or assembling substrates
-
- 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
- G02F1/133374—Constructional arrangements; Manufacturing methods for displaying permanent signs or marks
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a reading device for a display panel, which comprises two reading mechanisms, wherein the display panel comprises an upper substrate and a lower substrate which are oppositely arranged, the upper substrate and the lower substrate are respectively provided with a first mark and a second mark, and the two reading mechanisms are respectively used for emitting light to the first mark and the second mark so as to read the first mark and the second mark. In this way, when either the first mark or the second mark cannot be read, the other mark can be read, so that normal operation of subsequent processes is ensured, and the production efficiency is improved.
Description
Technical Field
The present application relates to the field of display panel technology, and in particular, to a reading apparatus for a display panel.
Background
Along with the display panel size is bigger and bigger, structural design is denser and denser for the space of leaving for the mark on the display panel is littleer and smaller, appears the mark easily and glues frame interference scheduling problem. In the manufacturing process of the display panel, after the upper substrate and the lower substrate are combined, the problems of interference between the mark of the upper substrate and the rubber frame and the like are easy to occur, so that the mark of the upper substrate cannot be read in the subsequent process, and the normal operation of the subsequent process is influenced.
Disclosure of Invention
The present application mainly provides a reading apparatus for a display panel, which aims to solve the problem that the mark of an upper substrate or the mark of a lower substrate cannot be read to affect the subsequent processes in the prior art.
In order to solve the above technical problem, the present application provides a reading apparatus for a display panel, the reading apparatus includes two reading mechanisms, the display panel includes an upper substrate and a lower substrate which are oppositely disposed, the upper substrate and the lower substrate are respectively provided with a first mark and a second mark, and the two reading mechanisms are respectively used for emitting light to the first mark and the second mark to read the first mark and the second mark.
The beneficial effect of this application is: different from the prior art, the reading device for the display panel provided by the application comprises two reading mechanisms, the display panel comprises an upper substrate and a lower substrate which are oppositely arranged, the upper substrate and the lower substrate are respectively provided with a first mark and a second mark, and the two reading mechanisms are respectively used for emitting light to the first mark and the second mark so as to read the first mark and the second mark. In this way, when either the first mark or the second mark cannot be read, the other mark can be read, so that normal operation of subsequent processes is ensured, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a first embodiment of a reading apparatus provided herein;
FIG. 2 is a schematic view of the display panel of FIG. 1 from another viewing angle;
FIG. 3 is a schematic view of the first mark or the second mark of FIG. 2 interfering with the frame;
FIG. 4 is a schematic view of an alternative embodiment of the reflective mechanism of FIG. 1;
FIG. 5 is a schematic view of a second embodiment of a reading apparatus provided herein;
fig. 6 is a schematic diagram of a third embodiment of a reading apparatus provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic diagram of a first embodiment of a reading apparatus provided in the present application. The reading apparatus 10 of the present embodiment can be used for reading the first mark 1011 and the second mark 1012 on the display panel 101.
Specifically, the reading apparatus 10 of the present embodiment includes two reading mechanisms 11, and the two reading mechanisms 11 are respectively configured to emit light to the first mark 1011 and the second mark 1012 to read the first mark 1011 and the second mark 1012.
Alternatively, each reading mechanism 11 includes an emitting unit 111 and an accepting unit 112, the emitting unit 111 is configured to emit light to the first tag 1011 or the second tag 1012, and the accepting unit 112 is configured to accept the light reflected from the first tag 1011 or the second tag 1012 to read the first tag 1011 or the second tag 1012.
In this embodiment, the receiving unit 112 may be a Charge-Coupled Device (CCD), which is a semiconductor Device and can convert light and electricity, so as to convert an optical image into a digital signal.
Referring to fig. 1 to fig. 2 together, fig. 2 is a schematic view of the display panel 101 in fig. 1 from another viewing angle.
In this embodiment, the display panel 101 includes an upper substrate 1013 and a lower substrate 1014 disposed opposite to each other.
The upper substrate 1013 may be a Color Filter (CF) of the display panel 101, on which the first marker 1011 is disposed; the lower substrate 1014 may be a Thin-Film-Transistor (TFT) of the display panel 101 on which the second mark 1012 is disposed.
Optionally, the number of the first marks 1011 and the second marks 1012 is plural, and in this embodiment, when the first marks 1011 and the second marks 1012 are aligned, the upper substrate 1013 and the lower substrate 1014 can be paired.
Further, the display panel 101 further includes a sealant 1015 disposed between the upper substrate 1013 and the lower substrate 1014, and the sealant 1015 is used for forming one or more spaces for accommodating liquid crystal between the upper substrate 1013 and the lower substrate 1014.
Specifically, in the manufacturing process of the display panel 101, the glue frame 1015 is coated on the lower substrate 1014, liquid crystal is injected into one or more areas surrounded by the glue frame 1015, and then the upper substrate 1013 is covered on the glue frame 1015 according to the first mark 1011 and the second mark 1012, so as to achieve the purpose of sealing the liquid crystal.
However, as the size of the display panel 101 is larger and larger, the structural design is more and more dense, so that the space left for the first mark 1011 and the second mark 1012 on the display panel 101 is smaller and smaller, and thus, in the manufacturing process of the display panel 101, the first mark 1011 or the second mark 1012 is easily interfered with the rubber frame 1015, and the like.
Referring to fig. 1 to 3 together, fig. 3 is a schematic diagram illustrating the interference between the first mark 1011 or the second mark 1012 and the plastic frame 1015 in fig. 2.
Since the manufacturing of the display panel 101 is a complicated process, multiple processes are often involved, the same mark on the display panel 101 may be used as a processing reference for the multiple processes, and if the first mark 1011 or the second mark 1012 interferes with the rubber frame 1015, the reading and the use of the first mark 1011 or the second mark 1012 by the subsequent processes are affected, so that the normal operation of the subsequent processes is affected. For this reason, when the first mark 1011 cannot be read by a subsequent process, the second mark 1012 needs to be selectively read; or when the second mark 1012 cannot be read by a subsequent process, the first mark 1011 is selectively read.
In this embodiment, the reading apparatus 10 is configured to, when the projection of the glue frame 1015 on the upper substrate 1013 at least partially overlaps the first mark 1011, read the second mark 1012 by the other of the two reading mechanisms 11; or the projection of the glue frame 1015 on the lower substrate 1014 at least partially coincides with the second indicia 1012, one of the two reading mechanisms 11 reads the first indicia 1011.
Specifically, the reading apparatus 10 further includes a reflection mechanism 12, one of two reading mechanisms 11 is disposed on a side of the upper substrate 1013 away from the lower substrate 1014, and emits light to the first marker 1011 in a direction perpendicular to the upper substrate 1013 to read the first marker 1011; the other of the two reading mechanisms 11 is disposed on a side of the upper substrate 1013 away from the lower substrate 1014 and emits light toward the second mark 1012 in a direction perpendicular to the lower substrate 1014, and the reflection mechanism 12 is configured to reflect the light emitted by the other of the reading mechanisms 11 to the second mark 1012 to read the second mark 1012. In this way, when the first marker 1011 can be read, the first marker 1011 is directly read by one of the two reading mechanisms 11; when the first mark 1011 interferes with the rubber frame 1015 and cannot be read, the second mark 1012 is read by the cooperation of the other of the two reading mechanisms 11 and the reflection mechanism 12, so that the display panel 101 does not need to be turned over, and the influence of the turning over on the quality of the display panel 101 is avoided.
Alternatively, the reflection mechanism 12 may be movable relative to the display panel 101 to adjust the position of the reflection mechanism 12 according to the position of the second mark 1012 on the lower substrate 1014, so that the reflection mechanism 12 can reflect light emitted from another one of the reading mechanisms 11 to the second mark 1012, thereby reading the second mark 1012.
Alternatively, the reflection mechanism 12 includes two reflection units 121, and the two reflection units 121 are symmetrically disposed so that the light received by the second mark 1012 is parallel to the light emitted by the other of the two reading mechanisms 11.
Alternatively, the reflection unit 121 is a flat mirror to reflect light emitted from another one of the reading mechanisms 11 to the second mark 1012.
In this embodiment, the reading apparatus 10 further comprises a support 13, and the support 13 is used for carrying two reading mechanisms 11.
Optionally, the bracket 13 is provided with an accommodating space 131, and the reflection mechanism 12 is movably connected with the bracket 13 to accommodate or extend out of the accommodating space 131.
In this embodiment, the reflection mechanism 12 is located below the display panel 101, and the two reflection units 121 are disposed in a V shape facing the display panel 101, so that dust, water stain, and the like in the production operation easily contaminate the reflection mechanism 12, which results in a deterioration of the reading effect of the reading apparatus 10. Therefore, the reflection mechanism 12 is movably connected with the bracket 13 to be accommodated in the accommodating space 131 when not in use, so that pollution of dust, water stain and the like to the reflection mechanism 12 can be reduced, the reading effect of the reading device 10 is increased, and the efficiency of production operation is improved.
Optionally, at least one of the two reading mechanisms 11 is movably connected to the bracket 13, so as to adjust the position of at least one of the two reading mechanisms 11 according to the position of the first mark 1011 and/or the second mark 1012, so as to meet the reading requirements of the display panels 101 with different dimensions on the first mark 1011 and/or the second mark 1012 in the production operation, thereby increasing the applicable range of the reading device 10.
Referring to fig. 1-4 together, fig. 4 is a schematic diagram of another embodiment of the reflection mechanism 12 in fig. 1. In this other embodiment, the reflection mechanism 12 includes one reflection unit 121, and one reflection unit 121 makes the light received by the second mark 1012 perpendicular to the light emitted from the other of the two reading mechanisms 11.
Alternatively, the other of the two reading mechanisms 11 is disposed on a side of the lower substrate 1014 away from the upper substrate 1013, and emits light toward the second mark 1012 in a direction parallel to the lower substrate 1014, and one reflection unit 121 is configured to reflect the light emitted by the other of the reading mechanisms 11 to the second mark 1012 to read the second mark 1012.
Referring to fig. 5, fig. 5 is a schematic diagram of a second embodiment of a reading apparatus provided in the present application. The reading apparatus 20 of the present embodiment includes a reading mechanism 21, and the reading mechanism 21 is configured to emit light toward the first tag 1011 or the second tag 1012 to read the first tag 1011 or the second tag 1012.
Other structures in this embodiment are the same as those in the first embodiment of the reading apparatus 10, and are not described herein again.
In this embodiment, a reading mechanism 21 can be disposed on a side of the upper substrate 1013 away from the lower substrate 1014 and emit light to the first marker 1011 or the second marker 1012 in a direction perpendicular to the upper substrate 1013 to read the first marker 1011 or the second marker 1012.
Specifically, one reading mechanism 21 is movably connected to the bracket 13 to move in a direction parallel to the display panel 101, and when it is desired to read the first mark 1011, the one reading mechanism 21 moves to a first position, as shown by a solid line in fig. 5, and emits light toward the first mark 1011 to read the first mark 1011; when it is desired to read the second mark 1012, one of the reading mechanisms 21 is moved to a second position, as shown by the dotted line in fig. 5, and emits light toward the second mark 1012, and the reflecting mechanism 12 reflects the light emitted from one of the reading mechanisms 21 toward the second mark 1012 to read the second mark 1012.
Referring to fig. 6, fig. 6 is a schematic diagram of a reading apparatus according to a third embodiment of the present disclosure. The reading apparatus 30 of the present embodiment includes a reading mechanism 31, and the reading mechanism 31 is configured to emit light toward the first tag 1011 or the second tag 1012 to read the first tag 1011 or the second tag 1012.
In this embodiment, a reading mechanism 31 can be connected to an automated platform (not shown) such as a robot arm, and the robot arm can rotate the reading mechanism 31 to rotate the upper substrate 1013 away from the lower substrate 1014, or the lower substrate 1014 away from the upper substrate 1013 and emit light to the first marker 1011 in a direction perpendicular to the upper substrate 1013, or to the second marker 1012 in a direction perpendicular to the lower substrate 1014, so as to read the first marker 1011 or the second marker 1012.
Specifically, when it is desired to read the first mark 1011, one reading mechanism 31 is rotated to a third position, as shown by a solid line in fig. 6, and emits light toward the first mark 1011 to read the first mark 1011; when it is desired to read the second indicia 1012, a reading mechanism 31 is rotated to a fourth position, shown in phantom in FIG. 6, and emits light toward the second indicia 1012 to read the second indicia 1012.
Different from the prior art, the reading device for the display panel provided by the application comprises two reading mechanisms, the display panel comprises an upper substrate and a lower substrate which are oppositely arranged, the upper substrate and the lower substrate are respectively provided with a first mark and a second mark, and the two reading mechanisms are respectively used for emitting light to the first mark and the second mark so as to read the first mark and the second mark. In this way, when either the first mark or the second mark cannot be read, the other mark can be read, so that normal operation of subsequent processes is ensured, and the production efficiency is improved.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (9)
1. The reading device for the display panel is characterized by comprising two reading mechanisms, wherein the display panel comprises an upper substrate, a lower substrate and a rubber frame between the upper substrate and the lower substrate which are oppositely arranged, the upper substrate and the lower substrate are respectively provided with a first mark and a second mark, and the two reading mechanisms are respectively used for emitting light to the first mark and the second mark so as to read the first mark and the second mark;
when the projection of the rubber frame on the lower substrate is at least partially overlapped with the second mark, one of the two reading mechanisms reads the first mark, and when the projection of the rubber frame on the upper substrate is at least partially overlapped with the first mark, the other of the two reading mechanisms reads the second mark.
2. The reading apparatus according to claim 1, wherein one of the two reading mechanisms is disposed on a side of the upper substrate away from the lower substrate to emit light toward the first mark in a direction perpendicular to the upper substrate.
3. The reading apparatus according to claim 2, wherein the other of the two reading mechanisms is disposed on a side of the upper substrate away from the lower substrate, the reading apparatus further comprising a reflection mechanism for reflecting light emitted from the other of the two reading mechanisms to the second mark.
4. A reading apparatus according to claim 3, wherein the other of the two reading mechanisms emits light perpendicular to the lower substrate, and the reflecting mechanism includes two reflecting units symmetrically disposed so that the light received by the second mark is parallel to the light emitted by the other of the two reading mechanisms.
5. The reading apparatus according to claim 3, wherein the reflection mechanism is movable relative to the display panel to adjust a position of the reflection mechanism according to a position of the second mark on the lower substrate.
6. A reading apparatus according to claim 3, further comprising a carriage for carrying the two reading mechanisms.
7. The reading apparatus according to claim 6, wherein the holder has an accommodating space, and the reflection mechanism is movably connected to the holder to be accommodated in or extend out of the accommodating space.
8. A reading apparatus according to claim 6, wherein at least one of the two reading mechanisms is movably connected to the carriage for adjusting the position of at least one of the two reading mechanisms in dependence on the position of the first and/or second indicia.
9. The reading apparatus according to claim 1, wherein each of the reading mechanisms includes an emitting unit for emitting light toward the first mark or the second mark, and an accepting unit for accepting light reflected from the first mark or the second mark to read the first mark or the second mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922258.5A CN108957823B (en) | 2018-08-14 | 2018-08-14 | Reading device for display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922258.5A CN108957823B (en) | 2018-08-14 | 2018-08-14 | Reading device for display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108957823A CN108957823A (en) | 2018-12-07 |
| CN108957823B true CN108957823B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810922258.5A Active CN108957823B (en) | 2018-08-14 | 2018-08-14 | Reading device for display panel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004233643A (en) * | 2003-01-30 | 2004-08-19 | Sony Corp | Method for manufacturing liquid crystal display device |
| KR20060079721A (en) * | 2005-01-03 | 2006-07-06 | 삼성전자주식회사 | Method for manufacturing panel for liquid crystal display |
| CN103376584A (en) * | 2012-04-25 | 2013-10-30 | 友达光电股份有限公司 | Mark forming method |
| CN104698660A (en) * | 2015-03-20 | 2015-06-10 | 昆山龙腾光电有限公司 | Grasping device and grasping method both for mark position of base plate |
| CN105511126A (en) * | 2016-01-21 | 2016-04-20 | 京东方科技集团股份有限公司 | Display panel and preparing method and testing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6790300B2 (en) * | 2000-09-14 | 2004-09-14 | Hitachi Electronics Engineering Co., Ltd. | Method and apparatus for bonding substrate plates together through gap-forming sealer material |
-
2018
- 2018-08-14 CN CN201810922258.5A patent/CN108957823B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004233643A (en) * | 2003-01-30 | 2004-08-19 | Sony Corp | Method for manufacturing liquid crystal display device |
| KR20060079721A (en) * | 2005-01-03 | 2006-07-06 | 삼성전자주식회사 | Method for manufacturing panel for liquid crystal display |
| CN103376584A (en) * | 2012-04-25 | 2013-10-30 | 友达光电股份有限公司 | Mark forming method |
| CN104698660A (en) * | 2015-03-20 | 2015-06-10 | 昆山龙腾光电有限公司 | Grasping device and grasping method both for mark position of base plate |
| CN105511126A (en) * | 2016-01-21 | 2016-04-20 | 京东方科技集团股份有限公司 | Display panel and preparing method and testing method thereof |
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| CN108957823A (en) | 2018-12-07 |
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