CN109493771B - Aging apparatus and aging method - Google Patents

Aging apparatus and aging method Download PDF

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Publication number
CN109493771B
CN109493771B CN201811452233.XA CN201811452233A CN109493771B CN 109493771 B CN109493771 B CN 109493771B CN 201811452233 A CN201811452233 A CN 201811452233A CN 109493771 B CN109493771 B CN 109493771B
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display panel
unit
aging
monitoring
lighting structure
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CN109493771A (en
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任星
王军
刁波
蒋秦伟
郭伟
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The invention relates to an aging device for aging a display panel, comprising: the first aging unit is used for aging at least one display panel and comprises a first lighting structure which is electrically connected with the at least one display panel to light the at least one display panel; the first monitoring unit is used for monitoring the current provided by the first point lamp structure to the at least one display panel in real time and sending a signal that the display panel is abnormal when the current exceeds a preset range; a second aging unit including a second lighting structure electrically connected to the display panel in which the abnormality occurs to re-light the display panel in which the abnormality occurs; and the first moving unit is used for moving the display panel with the abnormality to the second aging unit according to the signal sent by the first monitoring unit. The invention also relates to an aging method. The product with abnormal aging can be detected, and the product can be automatically moved to the second aging unit for aging again, so that the operation is simple and easy, and the product yield is improved.

Description

Aging apparatus and aging method
Technical Field
The invention relates to the technical field of display product manufacturing, in particular to an aging device and an aging method.
Background
In the production process of an AMOLED (Active-matrix organic light emitting diode), Aging is an indispensable process. The Aging process requires a lighting machine (hereinafter abbreviated as PG) to drive products, but in order to save cost and meet the requirement of mass production, 1 PG needs to simultaneously drive a plurality of panels to light, and a GOA (Gate driver on array, GOA) signal line is required to be shared. Because the GOA signal line is connected with a plurality of panels in parallel, when the output of a GOA circuit of one of the panels is abnormal, signal crosstalk can occur, all the panels connected in parallel are simultaneously abnormal, and therefore the Aging process cannot be normally carried out; meanwhile, for the one-drive-many design, as the AMOLED is a flexible product and the FPC (flexible printed circuit) also has flexible characteristics, Pin miss (Pin unconnected) caused by flexible ductility can be generated in the alignment and compression joint process of the Panel and the FPC, and the Pin miss can cause that the Aging process cannot be normally carried out; both of the above problems result in the product flowing to the next process without aging. The non-aged products caused by the two problems can have full-screen bright spots, the next procedure cannot be normally carried out, if the Aging is required to be carried out again, Test (testing) is required to independently detect classification and carry out information binding treatment, then the Aging is carried out by throwing the Aging equipment again, and the process is tedious.
Disclosure of Invention
In order to solve the technical problems, the invention provides an aging device and an aging method, which solve the problem that the existing aging process cannot monitor and judge whether aging is finished.
In order to achieve the purpose, the invention adopts the technical scheme that: an aging apparatus for aging a display panel, comprising:
the first aging unit is used for aging at least one display panel simultaneously and comprises a first lighting structure which is electrically connected with the at least one display panel to light the at least one display panel;
the first monitoring unit is used for monitoring the current provided by the first point lamp structure to the at least one display panel in real time and sending a signal that the display panel is abnormal when the current exceeds a preset range;
a second aging unit including a second lighting structure electrically connected to the display panel in which the abnormality occurs to re-light the display panel in which the abnormality occurs;
and the first moving unit is used for moving the display panel with the abnormality to the second aging unit according to the signal sent by the first monitoring unit.
Further, the first mobile unit includes:
a first separating part for separating the display panel having abnormality from the first lighting structure;
and the first manipulator is used for grabbing the separated display panel and moving the separated display panel to the second ageing unit.
Further, the first mobile unit further includes a movable carrying structure, which is used to move to a first preset position to carry the display panel to be aged again, and move the display panel to be aged again to a second preset position to be electrically connected to the second lighting structure.
And the second monitoring unit is used for monitoring the aged display panel in real time and sending out an abnormal signal of the display panel when the current provided by the second lighting structure exceeds a preset range.
Further, the first monitoring unit is multiplexed as the second monitoring unit.
Further, still include non-defective products export and defective products export, still include:
and the second moving unit is used for moving the display panel with the abnormality again to the defective product outlet according to the signal sent by the second monitoring unit so as to remove the defective product.
Further, the first mobile unit is multiplexed into the second mobile unit.
Further, the first aging unit includes a first information binding unit, configured to perform information binding on the at least one display panel.
Further, the second aging unit comprises a second information binding unit for binding the information of the abnormal display panel monitored by the first monitoring unit.
Further, the first information binding unit is multiplexed into the second information binding unit.
Furthermore, the first lighting structure comprises a flexible circuit board, and the display panel is electrically connected with the first lighting structure through the flexible circuit board.
Further, the second lighting structure includes a flexible circuit board, and the display panel to be aged again is electrically connected to the second lighting structure through the flexible circuit board.
Further, the first lighting structure is multiplexed into the second lighting structure.
The invention also provides an aging method for aging the display panel by the aging equipment, which comprises the following steps:
electrically connecting the at least one display panel with a first lighting structure;
illuminating the at least one display panel;
monitoring the current provided by the display panel by the first point lamp structure in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
moving the abnormal display panel to a second aging unit and electrically connecting the abnormal display panel with a second lighting structure;
the display panel in which the abnormality occurs is lighted again.
Further, the method also comprises the following steps:
monitoring the current provided by the second lighting structure in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
and removing the display panel with the abnormality again.
The invention has the beneficial effects that: the monitoring of the electric current that provides to first point lamp structure through first monitoring unit can detect out the product of ageing anomaly to can automatically move and age once more to the second ageing unit, simple easy operation promotes the product yield, and avoids the bad that manual operation caused.
Drawings
FIG. 1 is a schematic circuit diagram of a lighting structure and a plurality of panels in the prior art;
FIG. 2 shows a schematic diagram of an aging apparatus in an embodiment of the present invention;
FIG. 3 is a flow chart of a burn-in method according to an embodiment of the present invention;
FIG. 4 shows a flowchart of an aging method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the existing Aging process, a lighting machine (hereinafter abbreviated as PG) is required to drive products, but in order to save cost and meet the requirement of mass production, 1 PG needs to simultaneously drive a plurality of panels for lighting, and as shown in fig. 1, a GOA (Gate driver on array, GOA) signal line is required to be shared. The current cause of aging anomalies generally has several problems:
1. because the GOA signal lines are connected in parallel with a plurality of panels at the same time, when the output of the GOA circuit of one of the panels is abnormal, signal crosstalk occurs, which causes all the panels connected in parallel to be simultaneously abnormal, and thus the Aging process cannot be normally performed, as shown in fig. 1;
2. during alignment, the panel and the flexible circuit board are both flexible, and Pin miss (Pin unconnected) is easy to occur after alignment;
3. if the product is abnormal, the abnormality can also be caused in the Aging process;
in the existing aging process, high voltage and high current are applied to the panel, and the panel or the flexible circuit board is burnt due to the occurrence of the problems.
And the non-aged product can have full-screen bright spots due to the problems, the next procedure cannot be normally carried out, and the aged product cannot be monitored and judged in the current aging process. If the aging needs to be carried out again, the aging needs to be carried out again manually after the Test (Test) is used for independently detecting and classifying and carrying out information binding treatment, the process is complicated, the problems of damage and the like caused by personnel operation are easy to occur,
in view of the above problem, the present embodiment provides an aging apparatus, as shown in fig. 2, for aging a display panel, including:
the first aging unit 1 is used for aging at least one display panel and comprises a first lighting structure 11, wherein the first lighting structure 11 is electrically connected with the at least one display panel to light the at least one display panel;
the first monitoring unit 12 is configured to monitor, in real time, the current provided by the first lighting structure 11 to the at least one display panel, and send a signal indicating that the display panel is abnormal when the current exceeds a preset range;
a second aging unit 2 including a second lighting structure 21, the second lighting structure 21 being electrically connected to the display panel in which the abnormality occurs to re-light the display panel in which the abnormality occurs;
the first moving unit 3 is configured to move the display panel with the abnormality to the second aging unit 2 according to the signal sent by the first monitoring unit 12.
The current that can pass through real-time supervision the first point lamp structure 11 provides through first monitoring unit 12, the change through the current monitors and judges that display panel carries out the condition of ageing, in time discovers ageing unusual product, and through first mobile unit 3 will appear unusual display panel automatic movement to second ageing unit 2 is automatic to be ageing once more, promotes the product yield, and avoids because risks such as the damage that manual operation brought, and the control through the current can reduce the risk that the display panel that causes is burnt because the electric current is too big.
The specific structural form of the first mobile unit 3 may be various, and in this embodiment, the first mobile unit 3 includes:
a first separating part for separating the display panel in which the abnormality occurs from the first lighting structure 11;
and a first robot configured to grasp the separated display panel and move the separated display panel to the second aging unit 2.
The first separating portion may have a variety of structural forms, and in practical use, the specific structural form of the first separating portion may be set according to the connection manner of the display panel and the first lighting structure 11, for example, if the connection manner of the display panel and the first lighting structure 11 is a plug-in connection manner, the first separating portion may include a manipulator, and the display panel and the first lighting structure 11 may be directly separated by the manipulator.
In this embodiment, the first mobile unit 3 further includes a movable carrying structure, which is used to move to a first preset position to carry the display panel to be aged again and move the display panel to be aged again to a second preset position to be electrically connected to the second lighting structure 21, so as to improve the accuracy of the first mobile unit 3 and avoid the damage of the display panel during transportation.
In this embodiment, the display device further includes a second monitoring unit 22, configured to monitor the re-aged display panel in real time, and send a signal that the display panel is abnormal when the current provided by the second lighting structure 21 exceeds a preset range.
The setting of the second monitoring unit 22 can realize the real-time monitoring of the display panel which is aged again through the monitoring of the current, abnormal products can be found in time, and the product yield is further improved.
The first monitoring unit 12 and the second monitoring unit 22 may be independently disposed, or may be integrated into a whole, in this embodiment, the first monitoring unit 12 is reused as the second monitoring unit 22.
In this embodiment, the ageing equipment still includes non-defective products export 5 and defective products export 6, still includes:
and the second moving unit 4 is used for moving the display panel with the abnormality again to the defective product outlet 6 according to the signal sent by the second monitoring unit 22 so as to remove the display panel.
The display panel that is successfully aged is transported to the good product outlet 5 through the second moving unit 4 to be subjected to the next process, and the product that is aged again by the second aging unit 2 and is abnormal again is directly discarded and transported to the bad product outlet through the second moving unit 4 to be removed.
The specific structural form of the second mobile unit 4 may be multiple, the second mobile unit 4 may be separately provided from the first mobile unit 3, and the first mobile unit 3 may also be multiplexed as the second mobile unit 4, in this embodiment, the first mobile unit 3 is multiplexed as the second mobile unit 4, which simplifies the structure and saves the cost.
In this embodiment, the first aging unit 1 includes a first information binding unit, configured to perform information binding on the at least one display panel.
The setting of the first information binding unit can read and store the ID information and the like of each display panel, when the first monitoring unit 12 monitors abnormal products, the abnormal objects are easy to find, so that the first mobile unit 3 can quickly and accurately move the abnormal products to the second aging unit 2 for aging, and the efficiency is improved.
In this embodiment, the second aging unit 2 includes a second information binding unit, configured to perform information binding on the display panel with the abnormality monitored by the first monitoring unit 12.
The second information binding unit may read and store the ID information of the display panel that is aged again, and the like, and when the second monitoring unit 22 monitors the abnormal product, it is easy to search for the object that is abnormal again, so that the second moving unit 4 may quickly and accurately move the product that is abnormal again to a bad outlet to remove the product, thereby improving efficiency.
The first information binding unit and the second information binding unit can be independently arranged or integrally arranged.
In this embodiment, the first lighting structure 11 includes a flexible circuit board, and the display panel is electrically connected to the first lighting structure 11 through the flexible circuit board.
The first aging unit 1 further includes a carrying structure for carrying the flexible wiring board and the display panel, and is configured to support and carry the flexible wiring board and the display panel.
In this embodiment, the second lighting structure 21 includes a flexible circuit board, and the display panel to be aged again is electrically connected to the second lighting structure 21 through the flexible circuit board.
The first lighting structure 11 and the second lighting structure 21 may be independently provided or may be integrally provided, and in this embodiment, the first lighting structure 11 is multiplexed into the second lighting structure 21, so that the structure is simplified and the cost is reduced.
In order to reduce costs, the first aging unit 1 may be fully multiplexed as the second aging unit 2.
In a specific implementation manner of this embodiment, the aging apparatus for aging a display panel includes:
the first aging unit 1 is used for aging at least one display panel and comprises a first lighting structure 11, wherein the first lighting structure 11 is electrically connected with the at least one display panel to light the at least one display panel;
the first monitoring unit 12 is configured to monitor, in real time, the current provided by the first lighting structure 11 to the at least one display panel, and send a signal indicating that the display panel is abnormal when the current exceeds a preset range;
the first lighting structure 11 is further configured to re-light the display panel with the abnormality (the first lighting structure 11 is reused as the second lighting structure 21);
and the first moving unit 3 is configured to move the display panel with the abnormality to the first aging unit 1 again according to the signal sent by the first monitoring unit 12 (the first aging unit 1 is reused as the second aging unit 2).
The first monitoring unit 12 is further configured to monitor a current provided by the first lighting structure 11 to the display panel that is lighted again, and send a signal that the display panel is abnormal again when the current exceeds a preset range (the first monitoring unit 12 is reused as the second monitoring unit 22).
The first mobile unit 3 includes a first separating portion for separating the display panel in which the abnormality occurs from the first lighting structure 11;
and a first robot configured to grasp the separated display panel and move the separated display panel to the second aging unit 2.
The first mobile unit 3 is also used for moving the display panel with the abnormality again to the defective product outlet 6 according to the signal sent by the second monitoring unit 22 to remove the display panel (the first mobile unit 3 is reused as the second mobile unit 4).
The embodiment further provides an aging method for aging a display panel by using the above aging apparatus, which includes the following steps, as shown in fig. 3:
electrically connecting at least one display panel with a first lighting structure
Illuminating at least one display panel;
monitoring the current provided by the display panel by the first point lamp structure in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
moving the abnormal display panel to the second aging unit and electrically connecting the abnormal display panel with the second lighting structure 21;
the display panel in which the abnormality occurs is lighted again.
Further, the method also comprises the following steps, as shown in fig. 4:
monitoring the current provided by the second lighting structure 21 in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
and removing the display panel with the abnormality again.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (15)

1. An aging apparatus for aging a display panel, comprising:
the first aging unit is used for aging at least one display panel and comprises a first lighting structure which is electrically connected with the at least one display panel to light the at least one display panel;
the first monitoring unit is used for monitoring the current provided by the first point lamp structure to the at least one display panel in real time and sending a signal that the display panel is abnormal when the current exceeds a preset range;
a second aging unit including a second lighting structure electrically connected to the display panel in which the abnormality occurs to re-light the display panel in which the abnormality occurs;
and the first moving unit is used for moving the display panel with the abnormality to the second aging unit according to the signal sent by the first monitoring unit.
2. The burn-in apparatus of claim 1, wherein the first mobile unit comprises:
a first separating part for separating the display panel having abnormality from the first lighting structure;
and the first manipulator is used for grabbing the separated display panel and moving the separated display panel to the second ageing unit.
3. The burn-in apparatus of claim 2, wherein the first moving unit further comprises a movable carrying structure for moving to a first preset position to carry the display panel to be re-aged and moving the display panel to be re-aged to a second preset position to be electrically connected to the second lighting structure.
4. The burn-in apparatus of claim 1, further comprising a second monitoring unit for monitoring the re-aged display panel in real time and signaling an abnormality of the display panel when the current supplied by the second lighting structure exceeds a predetermined range.
5. The burn-in apparatus of claim 4, wherein the first monitoring unit is multiplexed into the second monitoring unit.
6. The aging apparatus according to claim 4 or 5, further comprising a good product outlet and a defective product outlet, further comprising:
and the second moving unit is used for moving the display panel with the abnormality again to the defective product outlet according to the signal sent by the second monitoring unit so as to remove the defective product.
7. The aging apparatus of claim 6, wherein the first mobile unit is multiplexed into the second mobile unit.
8. The burn-in apparatus of claim 1, wherein the first burn-in unit comprises a first information binding unit for information binding the at least one display panel.
9. The aging apparatus according to claim 8, wherein the second aging unit includes a second information binding unit for binding information of the display panel in which the abnormality is monitored by the first monitoring unit.
10. The aging device of claim 9, wherein the first information binding unit is multiplexed into the second information binding unit.
11. The burn-in apparatus of claim 1, wherein the first light structure comprises a flexible wiring board through which a display panel is electrically connected to the first light structure.
12. The burn-in apparatus of claim 1, wherein the second lighting structure comprises a flexible wiring board, and the display panel to be burned in again is electrically connected to the second lighting structure through the flexible wiring board.
13. The burn-in apparatus of claim 1, wherein the first lighting structure is multiplexed into the second lighting structure.
14. A burn-in method for burn-in of a display panel by the burn-in apparatus of any one of claims 1 to 13, comprising the steps of:
electrically connecting the at least one display panel with a first lighting structure;
illuminating the at least one display panel;
monitoring the current provided by the display panel by the first point lamp structure in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
moving the abnormal display panel to a second aging unit and electrically connecting the abnormal display panel with a second lighting structure;
the display panel in which the abnormality occurs is lighted again.
15. The aging method according to claim 14, further comprising the steps of:
monitoring the current provided by the second lighting structure in real time;
monitoring the current exceeding a preset range, and sending an abnormal signal;
and removing the display panel with the abnormality again.
CN201811452233.XA 2018-11-30 2018-11-30 Aging apparatus and aging method Active CN109493771B (en)

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CN112213581A (en) * 2020-09-28 2021-01-12 云谷(固安)科技有限公司 Aging test device, method and system

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CN105788501A (en) * 2016-05-20 2016-07-20 京东方科技集团股份有限公司 Organic electroluminescent display panel, aging test device, aging test method and display device
CN107170911A (en) * 2017-06-23 2017-09-15 深圳市华星光电技术有限公司 The aging testing system and method for a kind of display panel

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Publication number Priority date Publication date Assignee Title
KR20040020102A (en) * 2002-08-29 2004-03-09 (주)동아엘텍 An aging test apparatus for a LCD module
CN201119084Y (en) * 2007-10-29 2008-09-17 方块科技股份有限公司 Black out reversion device for LCD panel module
CN104297622A (en) * 2014-10-30 2015-01-21 京东方科技集团股份有限公司 Method and device for detecting defects of display panel
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