CN110112080B - Detection and repair device and detection and repair method - Google Patents
Detection and repair device and detection and repair method Download PDFInfo
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- CN110112080B CN110112080B CN201910374057.0A CN201910374057A CN110112080B CN 110112080 B CN110112080 B CN 110112080B CN 201910374057 A CN201910374057 A CN 201910374057A CN 110112080 B CN110112080 B CN 110112080B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/30—Structural arrangements specially adapted for testing or measuring during manufacture or treatment, or specially adapted for reliability measurements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/70—Testing, e.g. accelerated lifetime tests
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/861—Repairing
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a detection and repair device and a detection and repair method, wherein the detection and repair device comprises: the carrying platform is used for placing the display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end; the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end; the detection module is used for detecting whether the display panel has dark spots or not through the detection holes; and the repairing module is used for repairing the dark spot of the display panel when the display panel has the dark spot. The detection and repair device and the detection and repair method can improve the production efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a detection and repair device and a detection and repair method.
[ background of the invention ]
At present, an organic light emitting layer of a large-size organic light emitting diode display panel is prepared by an evaporation process, but because dust particles (particles) in the evaporation process are difficult to control, a cathode and an anode are easy to cause short circuit, and a dark spot defect is caused.
However, the existing detection device detects the dark spot after the manufacturing of the packaging layer of the display panel is completed, and if the dark spot is found, the packaging layer needs to be removed to repair the dark spot, so that the process is complex, and the production efficiency is reduced.
Therefore, it is necessary to provide a device and a method for testing and repairing to solve the problems of the prior art.
[ summary of the invention ]
The invention aims to provide a detection and repair device and a detection and repair method, which can improve the production efficiency.
In order to solve the above technical problem, the present invention provides a detection and repair device, which includes:
the carrying platform is used for placing the display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end;
the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end;
the detection module is used for detecting whether the display panel has dark spots or not through the detection holes;
and the repairing module is used for repairing the dark spot of the display panel when the display panel has the dark spot.
The invention also provides a detection and repair method, wherein the detection and repair device comprises:
the carrying platform is used for placing the display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end;
the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end;
the detection module is used for detecting whether the display panel has dark spots or not through the detection holes;
the repairing module is used for repairing the dark spots of the display panel when the display panel has the dark spots;
the method comprises the following steps:
applying a positive voltage to the first detection terminal and a negative voltage to the second detection terminal;
detecting whether the display panel has dark spots or not;
if the display panel is detected to have dark spots, acquiring the positions of the dark spots;
applying a negative voltage to the first detection terminal and a positive voltage to the second detection terminal;
and oxidizing the cathode corresponding to the dark spot position to repair the dark spot.
The detection and repair device and the detection and repair method comprise a carrying platform, a detection and repair device and a detection and repair device, wherein the carrying platform is used for placing a display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end; the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end; the detection module is used for detecting whether the display panel has dark spots or not through the detection holes; and the repair module is used for repairing the dark spots of the display panel when the display panel has the dark spots, and the display panel without the packaging layer can be detected and repaired, so that the process procedure can be simplified, and the production efficiency can be improved.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of a testing and repairing device according to the present invention;
FIG. 2 is a schematic diagram of a preferred construction of the inspection repair device of the present invention;
fig. 3 is a schematic structural diagram of a display panel repair process according to the present invention.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
With reference to fig. 1 and 2, the present invention provides a device for testing and repairing a display panel 20, wherein the cross-sectional structure of the display panel 20 includes an anode, an organic light emitting layer, and a cathode, the display panel 20 includes a cathode input terminal and an anode input terminal (not shown in the figure), the cathode input terminal is connected to the cathode, and the anode input terminal is connected to the anode. The cathode input terminal and the anode input terminal are, for example, bonding pads extending outside the display panel. It is understood that the display panel 20 of the present invention also includes a switch array layer, but does not include an encapsulation layer.
The detection and repair device includes a stage 11, an upper cover 12, a detection module 15, and a repair module 16.
The carrier 11 is used for placing the display panel 20, and a plurality of detection holes 111 are formed in the carrier 11, wherein the detection holes 111 are through holes. Wherein the position of the detection hole 111 corresponds to the position of the display area. That is, the display area is provided with the detection hole 111.
The upper cover 12 is movably connected with the carrier 11, a first detection terminal 13 and a second detection terminal 14 are arranged on the upper cover 12, the first detection terminal 13 is connected with the anode input end, and the second detection terminal 14 is connected with the cathode input end. Wherein, an opening 121 is arranged on the upper cover 12, and the side wall of the upper cover 12 is movably connected with the side wall of the carrier 11. For example, each side wall of the upper cover 12 is connected to each side wall of the carrier 11 through an air cylinder. The upper cover 12 is arranged on the cathode. That is, the display panel is disposed between the upper cover 12 and the stage 11, the upper cover 12 is close to the cathode, and the stage 11 is close to the substrate.
The detecting module 15 is used for detecting whether the display panel 20 has dark spots through the detecting holes 111. In an embodiment, the detecting module 15 is further configured to detect a light emitting parameter of the display panel 20 through the detecting hole, where the light emitting parameter includes parameters such as color coordinates, light emitting efficiency, brightness, viewing angle, and color gamut, and when the light emitting parameter meets a preset condition, the display panel 20 is determined to be qualified. And if the light-emitting parameters of a certain area are unqualified, judging that the area is unqualified. Therefore, by monitoring the light-emitting parameters, unqualified areas can be found in time, and then the unqualified areas are cut off, so that the rejection rate of products is reduced. In addition, the evaporation process can be adjusted in time, the display panels in the same batch are prevented from being defective, the quality of products is improved, and the rejection rate of the products is reduced.
Of course, the device for detecting repair may further include: and the signal prompting module (not shown in the figure) is used for sending a prompting signal when the light-emitting parameter does not meet the preset condition, so that the problem can be found in time.
The repairing module 16 is used for repairing the dark spot of the display panel 20 when the dark spot exists on the display panel 20. With reference to fig. 3, the repair module 16 includes an inlet tube 161 for introducing oxygen or water.
As shown in fig. 2, the detection and repair device further includes a control module 14, and the control module 14 is configured to control the first detection terminal 13 to be connected to a positive electrode of the power supply to switch in a positive voltage and the second detection terminal 14 to be connected to a negative electrode of the power supply to switch in a negative voltage when the detection and repair device is in a detection stage, that is, to enable the display panel to be in a normal light emitting state, so as to facilitate detection of a dark spot and monitoring of a light emitting parameter.
The control module 14 is configured to control the first detection terminal 13 to be connected to a negative electrode of a power supply to switch in a negative voltage and the second detection terminal 14 to be connected to a positive electrode of the power supply to switch in a positive voltage, that is, to make the organic light emitting diode not emit light, when the detection and repair device is in a repair stage, and then the control module 14 controls the repair module 16 to repair the dark spot 30 of the display panel 20.
As shown in fig. 3, the repair module 16 is specifically configured to perform an oxidation process on the cathode corresponding to the dark spot 30. That is, oxygen or water is introduced into the cathode corresponding to the dark spot 30, so that the cathode is oxidized, for example, the cathode material is Al, aluminum oxide is generated after oxidation treatment, and the conductivity of the oxidized cathode is reduced, so that the cathode and the anode are not short-circuited, and the occurrence of the dark spot is avoided.
With reference to fig. 1 to 3, the present invention further provides a method for performing inspection repair by using the inspection repair device, which includes:
s101, applying a positive voltage to the first detection terminal, and applying a negative voltage to the second detection terminal;
for example, a positive power supply is applied to the first detection terminal 13 and the second detection terminal 14, so that the anode is applied with a positive voltage and the cathode is applied with a negative voltage, thereby causing the display panel to emit light.
S102, detecting whether a dark spot exists on the display panel;
for example, whether the display panel has dark spots or not is detected by a detection module.
S103, if the display panel is detected to have dark spots, acquiring the positions of the dark spots;
for example, when the display panel is detected to have a dark spot 30, the position of the dark spot 30 is acquired.
S104, applying a negative voltage to the first detection terminal and applying a positive voltage to the second detection terminal;
for example, a reverse power supply is applied to the first detection terminal and the second detection terminal, so that the anode is applied with a negative voltage and the cathode is applied with a positive voltage, thereby causing the display panel not to emit light.
And S105, oxidizing the cathode corresponding to the dark spot position to repair the dark spot.
For example, oxygen or water is introduced into the cathode corresponding to the position of the dark spot 30, and the direction of application of the oxygen or water is shown by the arrow in fig. 3. The cathode at the position is oxidized, so that the conductivity of the cathode at the position is reduced, the conduction of the anode and the cathode is avoided, and the repair of a dark spot is completed.
The above method may further comprise:
s106, detecting whether the light-emitting parameters of the display panel meet preset conditions or not;
for example, whether the light emitting parameters of the display panel meet preset conditions is detected to judge whether the display panel is qualified.
And S107, if the light-emitting parameters of the display panel do not meet the preset conditions, sending out a prompt signal.
For example, when the light-emitting parameters of the display panel are detected not to meet the preset conditions, the display panel is judged to be unqualified, and therefore a prompt signal is sent out, and the later-stage treatment of unqualified products is facilitated.
The detection and repair device can detect and repair the display panel without the packaging layer, thereby simplifying the process procedure, improving the production efficiency, reducing the rejection rate of products and reducing the production cost.
The detection and repair device and the detection and repair method comprise a carrying platform, a detection and repair device and a detection and repair device, wherein the carrying platform is used for placing a display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end; the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end; the detection module is used for detecting whether the display panel has dark spots or not through the detection holes; and the repair module is used for repairing the dark spots of the display panel when the display panel has the dark spots, and the display panel without the packaging layer can be detected and repaired, so that the process procedure can be simplified, and the production efficiency can be improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (7)
1. A detection and repair device is characterized by comprising
The carrying platform is used for placing the display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end;
the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end;
the detection module is used for detecting whether the display panel has dark spots or not through the detection holes;
the repairing module is used for repairing the dark spots of the display panel when the display panel has the dark spots;
the detection and repair device further comprises a control module, wherein the control module is used for controlling the first detection terminal to be connected with the positive pole of the power supply and controlling the second detection terminal to be connected with the negative pole of the power supply when the detection and repair device is in a detection stage;
the control module is used for controlling the first detection terminal to be connected with the negative electrode of the power supply and the second detection terminal to be connected with the positive electrode of the power supply when the detection and repair device is in a repair stage, and controlling the repair module to repair dark spots of the display panel; the repair module is specifically used for carrying out oxidation treatment on the cathode corresponding to the dark spot position.
2. The inspection and repair device of claim 1,
the detection module is also used for detecting the light-emitting parameters of the display panel through the detection holes.
3. The device of claim 2, further comprising: and the signal prompt module is used for sending a prompt signal when the light-emitting parameter does not meet the preset condition.
4. The inspection and repair device of claim 1,
the repair module comprises an input pipe, and the input pipe is used for introducing oxygen or water.
5. The inspection and repair device of claim 1,
the detection holes are through holes.
6. A method for testing repair, wherein the testing repair apparatus comprises:
the carrying platform is used for placing the display panel, and a plurality of detection holes are formed in the carrying platform; the cross-sectional structure of the display panel comprises an anode, an organic light-emitting layer and a cathode, and the display panel comprises a cathode input end and an anode input end;
the upper cover is movably connected with the carrying platform and arranged on the cathode, a first detection terminal and a second detection terminal are arranged on the upper cover, the first detection terminal is connected with the anode input end, and the second detection terminal is connected with the cathode input end;
the detection module is used for detecting whether the display panel has dark spots or not through the detection holes;
the repairing module is used for repairing the dark spots of the display panel when the display panel has the dark spots;
the method comprises the following steps:
applying a positive voltage to the first detection terminal and a negative voltage to the second detection terminal;
detecting whether the display panel has dark spots or not;
if the display panel is detected to have dark spots, acquiring the positions of the dark spots;
applying a negative voltage to the first detection terminal and a positive voltage to the second detection terminal;
and oxidizing the cathode corresponding to the dark spot position to repair the dark spot.
7. The inspection and repair method of claim 6, further comprising:
detecting whether the light-emitting parameters of the display panel meet preset conditions,
and if the light-emitting parameters of the display panel do not meet the preset conditions, sending a prompt signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910374057.0A CN110112080B (en) | 2019-05-05 | 2019-05-05 | Detection and repair device and detection and repair method |
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| CN201910374057.0A CN110112080B (en) | 2019-05-05 | 2019-05-05 | Detection and repair device and detection and repair method |
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| CN110112080A CN110112080A (en) | 2019-08-09 |
| CN110112080B true CN110112080B (en) | 2021-04-27 |
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| CN113721120B (en) * | 2021-07-15 | 2022-04-29 | 集创北方(珠海)科技有限公司 | Detection method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101666930A (en) * | 2009-09-28 | 2010-03-10 | 友达光电(厦门)有限公司 | Testing device of display panel |
| CN103928488A (en) * | 2013-06-19 | 2014-07-16 | 上海天马微电子有限公司 | Organic light emitting diode panel and device and preparation, short-circuit detection and short-circuit reparation method of organic light emitting diode panel |
| CN106803411A (en) * | 2017-03-30 | 2017-06-06 | 昆山工研院新型平板显示技术中心有限公司 | Display device, detection unit and detection method |
| KR20170136866A (en) * | 2016-06-02 | 2017-12-12 | (주)티에스이 | Apparatus and method for testing of organic light-emitting display panel |
| CN108023006A (en) * | 2016-10-28 | 2018-05-11 | 隆达电子股份有限公司 | light emitting diode wafer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590607B (en) * | 2016-03-10 | 2018-09-14 | 京东方科技集团股份有限公司 | Gate driving circuit and its detection method, array substrate, display device |
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- 2019-05-05 CN CN201910374057.0A patent/CN110112080B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666930A (en) * | 2009-09-28 | 2010-03-10 | 友达光电(厦门)有限公司 | Testing device of display panel |
| CN103928488A (en) * | 2013-06-19 | 2014-07-16 | 上海天马微电子有限公司 | Organic light emitting diode panel and device and preparation, short-circuit detection and short-circuit reparation method of organic light emitting diode panel |
| KR20170136866A (en) * | 2016-06-02 | 2017-12-12 | (주)티에스이 | Apparatus and method for testing of organic light-emitting display panel |
| CN108023006A (en) * | 2016-10-28 | 2018-05-11 | 隆达电子股份有限公司 | light emitting diode wafer |
| CN106803411A (en) * | 2017-03-30 | 2017-06-06 | 昆山工研院新型平板显示技术中心有限公司 | Display device, detection unit and detection method |
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