CN112256148B - Display device, display panel and detection method thereof - Google Patents
Display device, display panel and detection method thereof Download PDFInfo
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- CN112256148B CN112256148B CN202011128689.8A CN202011128689A CN112256148B CN 112256148 B CN112256148 B CN 112256148B CN 202011128689 A CN202011128689 A CN 202011128689A CN 112256148 B CN112256148 B CN 112256148B
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- 238000001514 detection method Methods 0.000 title claims abstract description 152
- 239000000758 substrate Substances 0.000 claims abstract description 72
- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims description 11
- 238000005538 encapsulation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The present disclosure provides a display device, a display panel, and a method of detecting a display panel. The display panel may include a display substrate and an integrated chip. The display substrate may include a display region and a peripheral region. The peripheral region may surround the display region. The peripheral region may be provided with a touch signal line and a crack detection line. The integrated chip can be arranged in the peripheral area and is connected with the touch signal line and the crack detection line. The integrated chip is used for outputting a crack detection signal to a crack detection line. The integrated chip is used for outputting a touch control driving signal to the touch control signal line. The method and the device can detect cracks on the display substrate and detect touch performance of the display substrate.
Description
Technical Field
The disclosure relates to the field of display technologies, and in particular, to a display device, a display panel, and a detection method of the display panel.
Background
With the rapid development of display technology, the organic electroluminescent display device has a wide application prospect due to the advantages of high response, high contrast, flexibility and the like.
The organic electroluminescent display device generally includes a display panel, a polarizer, a cover plate, and the like. A thin film encapsulation process is often used to encapsulate the display panel. The typical packaging failure of the thin film packaging process is packaging leakage, which causes the organic luminescent material in the display panel to contact with external water vapor, thereby causing the organic luminescent material to fail. The root cause of the package leakage is that the film layer is cracked, thereby causing the package film to crack. However, the prior art lacks a method of detecting cracks.
Disclosure of Invention
The present disclosure is directed to a display device, a display panel, and a method for detecting a display panel, which can detect cracks in a display substrate or detect touch performance in the display substrate.
According to an aspect of the present disclosure, there is provided a display panel including:
the display substrate comprises a display area and a peripheral area surrounding the display area, wherein the peripheral area is provided with a touch signal line and a crack detection line;
and the integrated chip is arranged in the peripheral area, is connected with the touch control signal line and the crack detection line, and is used for outputting a crack detection signal to the crack detection line and outputting a touch control driving signal to the touch control signal line.
Further, the touch signal line includes a touch driving signal line and a touch sensing signal line, and the integrated chip includes:
the first port is connected with the input end of the crack detection line;
the second port is connected with the output end of the crack detection line;
the third port is connected with the touch control driving signal line;
and the fourth port is connected with the touch sensing signal line.
Further, the touch signal line includes a touch driving signal line and a touch sensing signal line, and the integrated chip includes:
a fifth port connected with the input end of the crack detection line and the touch control driving signal line;
and the sixth port is connected with the output end of the crack detection line and the touch sensing signal line.
Further, the display panel further includes:
the input end of the crack detection line and the touch control driving signal line are connected to the fifth port through the first multiplexer;
and the output end of the crack detection line and the touch sensing signal line are connected to the sixth port through the second multiplexer.
Further, the display substrate includes:
a substrate;
a light-emitting layer disposed on the substrate;
the packaging layer is arranged on one side of the light-emitting layer, which is far away from the substrate;
the touch sensor layer is arranged on one side of the packaging layer away from the substrate;
the touch signal wire is arranged on one side of the packaging layer far away from the substrate and is connected with the touch sensor layer.
Further, the crack detection line is arranged on one side of the packaging layer away from the substrate.
According to an aspect of the present disclosure, there is provided a display device including the above display panel.
According to one aspect of the present disclosure, there is provided a method of detecting a display panel, including:
providing a display substrate, wherein the display substrate comprises a display area and a peripheral area surrounding the display area, and the peripheral area is provided with a touch signal line and a crack detection line;
arranging an integrated chip in the peripheral area, and connecting the integrated chip with the touch signal line and the crack detection line;
and outputting a crack detection signal to the crack detection line through the integrated chip, and outputting a touch control driving signal to the touch control signal line.
Further, the touch signal line includes a touch driving signal line and a touch sensing signal line, and the integrated chip includes:
the first port is connected with the input end of the crack detection line;
the second port is connected with the output end of the crack detection line;
the third port is connected with the touch control driving signal line;
the fourth port is connected with the touch sensing signal line;
outputting, by the integrated chip, a crack detection signal to the crack detection line and outputting a touch drive signal to the touch signal line includes:
and outputting a crack detection signal to the crack detection line through the first port, and outputting a touch control driving signal to the touch control signal line through the third port.
Further, the touch signal line includes a touch driving signal line and a touch sensing signal line, and the integrated chip includes:
a fifth port connected with the input end of the crack detection line and the touch control driving signal line;
the sixth port is connected with the output end of the crack detection line and the touch sensing signal line;
outputting, by the integrated chip, a crack detection signal to the crack detection line and outputting a touch drive signal to the touch signal line includes:
and inputting a crack detection signal to the crack detection line through the fifth port, and outputting a touch control driving signal to the touch control driving signal line through the fifth port after a preset time.
According to the display device, the display panel and the detection method of the display panel, the integrated chip can output crack detection signals to the crack detection lines and touch control driving signals to the touch control signal lines, so that the integrated chip can be used for detecting cracks of the display substrate and detecting touch control performance of the display substrate.
Drawings
Fig. 1 is a schematic diagram of crack detection of a display panel in the related art.
Fig. 2 is a schematic diagram illustrating touch performance detection of a display panel in the related art.
Fig. 3 is a schematic view of a display panel according to an embodiment of the present disclosure.
Fig. 4 is another schematic view of a display panel of an embodiment of the present disclosure.
Fig. 5 is a schematic diagram of connection of a crack detection line and a touch drive signal line according to an embodiment of the present disclosure.
Fig. 6 is a flowchart of a method of detecting a display panel according to an embodiment of the present disclosure.
Reference numerals illustrate: 1. a display substrate; 101. a peripheral region; 102. a display area; 2. a crack detection line; 3. a touch signal line; 301. a touch control driving signal line; 302. a touch sensing signal line; 4. a driving chip; 5. a touch chip; 6. an integrated chip; 601. a first port; 602. a third port; 603. a fourth port; 604. a second port; 605. a fifth port; 606. a sixth port; 7. a touch control driving electrode; 8. a touch sensing electrode; 9. an encapsulation layer; 10. and a touch insulating layer.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
In the related art, as shown in fig. 1, when crack detection is performed on a display substrate 1, a crack detection line 2 is formed at an edge of the display substrate 1, and both ends of the crack detection line 2 are connected to a driving chip 4 to determine whether or not the display substrate 1 has a crack by detecting a resistance of the crack detection line 2 by the driving chip 4. In addition, if the touch sensor is integrated on the display substrate 1, it is also necessary to perform touch performance detection of the display substrate 1, for example, open circuit (Open) detection and Short circuit (Short) detection of the touch sensor. As shown in fig. 2, in the touch performance detection, the module unit needs to be mounted on the display substrate 1, so that the touch chip 5 in the module unit is bound to the display substrate 1, and the touch performance detection is performed through the touch chip 5 and the touch signal line 3 on the display substrate 1. However, when the display substrate 1 needs to be discarded because the detected touch performance is not satisfactory, the module units mounted on the display substrate 1 are discarded together, resulting in waste of resources.
The embodiment of the disclosure provides a display panel. As shown in fig. 3 and 4, the display panel may include a display substrate 1 and an integrated chip 6, in which:
the display substrate 1 may include a display region 102 and a peripheral region 101. The peripheral region 101 may surround the display region 102. The peripheral region 101 may be provided with a touch signal line 3 and a crack detection line 2. The integrated chip 6 may be disposed in the peripheral area 101 and connected to both the touch signal line 3 and the crack detection line 2. The integrated chip 6 is configured to output a crack detection signal to the crack detection line 2. The integrated chip 6 is configured to output a touch driving signal to the touch signal line 3.
In the display panel of the embodiment of the disclosure, the integrated chip 6 can be used for outputting the crack detection signal to the crack detection line 2 and outputting the touch control driving signal to the touch control signal line 3, so that the integrated chip 6 can be used for detecting the crack of the display substrate 1 and detecting the touch control performance of the display substrate 1; meanwhile, in the process of detecting the touch performance of the display substrate 1 through the integrated chip 6, the module unit is not required to be installed on the display substrate 1, and the problem of module unit waste caused by unsatisfactory touch performance of the display substrate 1 in the related art is solved.
The following describes each part of the display panel according to the embodiment of the present disclosure in detail:
the display substrate 1 may include a substrate, a driving circuit layer, a light emitting layer, and a package layer which are stacked. The driving circuit layer may be disposed at one side of the substrate, and the light emitting layer may be disposed at a side of the driving circuit layer away from the substrate. The driving circuit layer is used for driving the organic electroluminescent layer to emit light. The driving circuit layer may include a driving transistor. The light emitting layer may include an anode layer, an organic electroluminescent material layer, and a cathode layer, which are stacked. The anode layer can be arranged on the driving circuit layer and electrically connected with the source electrode or the drain electrode of the driving transistor, the organic electroluminescent material layer can be arranged on one side of the anode layer far away from the substrate, the cathode layer can be arranged on one side of the organic electroluminescent material layer far away from the anode layer, and the packaging layer can be arranged on one side of the cathode layer far away from the substrate.
The display substrate 1 may further include a touch sensor layer. The touch sensor layer may be disposed on a side of the encapsulation layer away from the substrate. The touch sensor layer may include a touch electrode layer, a touch insulating layer, and a transfer metal layer. The touch electrode layer can be arranged on one side of the packaging layer far away from the substrate. The touch insulating layer is arranged on one side of the touch electrode layer away from the substrate. The switching metal layer is arranged on the touch insulating layer and is connected with the touch electrode layer through a via hole on the touch insulating layer. The touch electrode layer may include a touch driving electrode 7 (Tx) and a touch sensing electrode 8 (Rx). The touch driving electrode 7 and the touch sensing electrode 8 are arranged in a crossing manner.
The touch signal line 3 may be disposed in the peripheral area 101 of the display substrate 1. The touch signal line 3 may be disposed on a side of the encapsulation layer 9 away from the substrate. Further, the touch signal line 3 may be disposed between the encapsulation layer 9 and the touch insulating layer 10. The touch signal line 3 may be connected to a touch sensor layer. Taking a touch sensor layer including a touch driving electrode 7 and a touch sensing electrode 8 as an example, the capacitance value variation between the touch driving electrode 7 and the touch sensing electrode 8 can be monitored through the touch signal line 3, so that Open circuit (Open) detection and Short circuit (Short) detection of the touch sensor can be performed to understand the touch performance of the display panel. In addition, the change of the capacitance value between the touch driving electrode 7 and the touch sensing electrode 8 is monitored, so that the crack position of the display substrate 1 can be roughly confirmed, the investigation range is reduced, and the crack detection efficiency is improved. The touch signal line 3 may include a touch driving signal line 301 and a touch sensing signal line 302, the touch driving signal line 301 is connected to the touch driving electrode 7, and the touch sensing signal line 302 is connected to the touch sensing electrode 8. The number of the touch driving signal lines 301 and the touch driving electrodes 7 is plural. In an embodiment of the present disclosure, two ends of each touch driving electrode 7 are connected to a touch driving signal line 301, that is, the touch driving electrodes 7 are driven in two sides. In another embodiment of the present disclosure, only one end of each touch driving electrode 7 is connected to the touch driving signal line 301.
The crack detection line 2 may be provided in the peripheral region 101 of the display substrate 1. The crack detection line 2 may be arranged around the display area 102. The crack detection line 2 may be provided on a side of the encapsulation layer 9 remote from the substrate (see fig. 5). Further, the crack detection line 2 may be disposed on a side of the touch insulation layer 10 away from the substrate. In other embodiments of the present disclosure, the crack detection line 2 may also be provided on the side of the encapsulation layer 9 close to the substrate. The crack detection line 2 includes opposite ends, one end being an input end of the crack detection line 2 and the other end being an output end of the crack detection line 2. The input and output ends of the crack detection line 2 are connected to the integrated chip 6. The principle of crack detection according to the embodiments of the present disclosure may be: the integrated chip 6 inputs a crack detection signal to the input end of the crack detection line 2, and the integrated chip 6 receives a feedback signal output by the output end of the crack detection line 2 and judges whether the edge of the display substrate 1 has a crack according to the difference between the feedback signal and the threshold voltage. When a crack occurs at the edge of the display substrate 1, a crack occurs in the crack detection line 2 disposed around the display area 102, resulting in an increase in the resistance of the crack detection line 2, so that the feedback signal output from the crack detection line 2 is greater than the threshold voltage. The threshold voltage may be obtained through a simulation or test, which is not limited by the embodiments of the present disclosure.
The integrated chip 6 may be provided in the peripheral area 101. The integrated Chip 6 may be disposed in the peripheral area 101 by a Chip On Film (COF) method. Specifically, the integrated chip 6 is bound to a circuit board, and the circuit board is disposed in the peripheral area 101. The integrated chip 6 may be a touch and display driver integrated (Touch and Display Driver Integration, TDDI) chip. The integrated chip 6 may be connected to the touch signal line 3, and is configured to output a touch driving signal to the touch signal line 3. The integrated chip 6 may also be connected to the crack detection line 2 described above for outputting a crack detection signal to the crack detection line 2.
In an embodiment of the present disclosure, the integrated chip 6 may include a first port 601, a second port 604, a third port 602, and a fourth port 603. The first port 601 may be connected to an input of the crack detection line 2 for inputting a crack detection signal to the crack detection line 2. The second port 604 may be connected to an output of the crack detection line 2 for receiving a feedback signal of the crack detection line 2. The third port 602 may be connected to the touch driving signal line 301 for outputting a touch driving signal to the touch driving signal line 301. The fourth port 603 may be connected to the touch sensing signal line 302, and is configured to receive a touch sensing signal output by the touch sensing signal line 302. The third port 602 may output a touch driving signal while the first port 601 outputs a crack detection signal, but the embodiment of the present disclosure is not particularly limited thereto.
In another embodiment of the present disclosure, the integrated chip 6 may include a fifth port 605 and a sixth port 606. The fifth port 605 may be connected to both the input of the crack detection line 2 and the touch driving signal line 301. Taking the example that the touch driving signal line 301 is located between the encapsulation layer 9 and the touch insulating layer 10 and the crack detection line 2 is located at a side of the touch junction layer away from the substrate, the crack detection line 2 may be connected to the touch driving signal line 301 through a via hole on the touch insulating layer 10 (see fig. 5), but the disclosure is not limited thereto. The fifth port 605 may input a crack detection signal to the crack detection line 2 or a touch drive signal to the touch drive signal line 301. The sixth port 606 may be connected to both the output of the crack detection line 2 and the touch sensing signal line 302. The sixth port 606 may receive a feedback signal output from the output end of the crack detection line 2, or may receive a touch sensing signal output from the touch sensing signal line 302.
The display panel of the embodiment of the present disclosure may further include a first Multiplexer (MUX) and a second Multiplexer (MUX). The input end of the crack detection line 2 and the touch driving signal line 301 are connected to the fifth port 605 through the first multiplexer. The output end of the crack detection line 2 and the touch sensing signal line 302 are connected to the sixth port 606 through a second multiplexer. When crack detection is performed, the first multiplexer controls the input end of the crack detection line 2 to be conducted with the fifth port 605, and controls the touch control driving signal line 301 to be disconnected with the fifth port 605; the second multiplexer controls the output terminal of the crack detection line 2 to be connected to the sixth port 606, and controls the touch sensing signal line 302 to be disconnected from the sixth port 606. When the touch performance test is performed, the first multiplexer controls the input end of the crack detection line 2 to be disconnected from the fifth port 605, and controls the touch driving signal line 301 to be conducted with the fifth port 605; the second multiplexer controls the output end of the crack detection line 2 to be disconnected from the sixth port 606, and controls the touch sensing signal line 302 to be conducted with the sixth port 606.
The embodiment of the disclosure also provides a display device. The display device may include the display panel according to any one of the above embodiments. Of course, the display device may further include a cover plate. The cover plate can be arranged on one side of the touch sensor layer away from the substrate. The display device can be a mobile phone, of course, a tablet personal computer, a television and the like. Since the display panel in the display device of the embodiment of the present disclosure is the same as the display panel in the embodiment of the display panel described above, it has the same beneficial effects and is not described here again.
The embodiment of the disclosure also provides a detection method of the display panel. The test method is used for detecting the display panel in any embodiment. As shown in fig. 6, the method for detecting a display panel may include steps S100 to S120, wherein:
step S100, a display panel is provided, wherein the display panel comprises a display area and a peripheral area surrounding the display area, and the peripheral area is provided with a touch signal line and a crack detection line.
Step S110, the integrated chip is arranged in the peripheral area, and the integrated chip is connected with the touch signal line and the crack detection line.
Step S120, outputting a crack detection signal to the crack detection line through the integrated chip, and outputting a touch driving signal to the touch signal line.
As shown in fig. 3 and 4, in the detection method of the display panel according to the embodiment of the present disclosure, since the integrated chip 6 may be used to output a crack detection signal to the crack detection line 2 and may also be used to output a touch driving signal to the touch signal line 3, the integrated chip 6 may be used to perform crack detection on the display substrate 1 and may also perform touch performance detection on the display substrate 1; meanwhile, in the process of detecting the touch performance of the display substrate 1 through the integrated chip 6, the module unit is not required to be installed on the display substrate 1, and the problem of module unit waste caused by unsatisfactory touch performance of the display substrate 1 in the related art is solved.
The touch signal line 3 includes a touch driving signal line 301 and a touch sensing signal line 302. In an embodiment of the present disclosure, the integrated chip 6 may include a first port 601, a second port 604, a third port 602, and a fourth port 603. The first port 601 may be connected to an input of the crack detection line 2 for inputting a crack detection signal to the crack detection line 2. The second port 604 may be connected to an output of the crack detection line 2 for receiving a feedback signal of the crack detection line 2. The third port 602 may be connected to the touch driving signal line 301 for outputting a touch driving signal to the touch driving signal line 301. The fourth port 603 may be connected to the touch sensing signal line 302, and is configured to receive a touch sensing signal output by the touch sensing signal line 302. Based on this, the above step S120 may include: the crack detection signal is output to the crack detection line 2 through the first port 601, and the touch driving signal is output to the touch signal line 3 through the third port 602. Crack detection and touch performance detection are completed in the same time, and the detection efficiency of the display panel is improved.
In another embodiment of the present disclosure, the integrated chip 6 may include a fifth port 605 and a sixth port 606. The fifth port 605 may be connected to both the input of the crack detection line 2 and the touch driving signal line 301. The fifth port 605 may input a crack detection signal to the crack detection line 2 or a touch drive signal to the touch drive signal line 301. The sixth port 606 may be connected to both the output of the crack detection line 2 and the touch sensing signal line 302. The sixth port 606 may receive a feedback signal output from the output end of the crack detection line 2, or may receive a touch sensing signal output from the touch sensing signal line 302. Based on this, the above step S120 may include: a crack detection signal is input to the crack detection line 2 through the fifth port 605, and a touch driving signal is output to the touch driving signal line 301 through the fifth port 605 after a preset time.
The foregoing disclosure is not intended to be limited to the preferred embodiments of the present disclosure, but rather is to be construed as limited to the embodiments disclosed, and modifications and equivalent arrangements may be made in accordance with the principles of the present disclosure without departing from the scope of the disclosure.
Claims (8)
1. A display panel, comprising:
the display substrate comprises a display area and a peripheral area surrounding the display area, wherein the peripheral area is provided with a touch signal line and a crack detection line;
the integrated chip is arranged in the peripheral area, is connected with the touch signal wire and the crack detection wire, and is used for outputting a crack detection signal to the crack detection wire and outputting a touch driving signal to the touch signal wire;
the touch signal line comprises a touch driving signal line and a touch sensing signal line, and the integrated chip comprises:
the first port is connected with the input end of the crack detection line;
the second port is connected with the output end of the crack detection line;
the third port is connected with the touch control driving signal line;
and the fourth port is connected with the touch sensing signal line.
2. The display panel of claim 1, wherein the touch signal lines comprise touch drive signal lines and touch sense signal lines, the integrated chip comprising:
a fifth port connected with the input end of the crack detection line and the touch control driving signal line;
and the sixth port is connected with the output end of the crack detection line and the touch sensing signal line.
3. The display panel of claim 2, further comprising:
the input end of the crack detection line and the touch control driving signal line are connected to the fifth port through the first multiplexer;
and the output end of the crack detection line and the touch sensing signal line are connected to the sixth port through the second multiplexer.
4. The display panel of claim 1, wherein the display substrate comprises:
a substrate;
a light-emitting layer disposed on the substrate;
the packaging layer is arranged on one side of the light-emitting layer, which is far away from the substrate;
the touch sensor layer is arranged on one side of the packaging layer away from the substrate;
the touch signal wire is arranged on one side of the packaging layer far away from the substrate and is connected with the touch sensor layer.
5. The display panel of claim 4, wherein the crack detection line is disposed on a side of the encapsulation layer remote from the substrate.
6. A display device comprising the display panel of any one of claims 1-5.
7. A method for detecting a display panel, comprising:
providing a display substrate, wherein the display substrate comprises a display area and a peripheral area surrounding the display area, and the peripheral area is provided with a touch signal line and a crack detection line;
arranging an integrated chip in the peripheral area, and connecting the integrated chip with the touch signal line and the crack detection line;
outputting a crack detection signal to the crack detection line through the integrated chip, and outputting a touch control driving signal to the touch control signal line;
the touch signal line comprises a touch driving signal line and a touch sensing signal line, and the integrated chip comprises:
the first port is connected with the input end of the crack detection line;
the second port is connected with the output end of the crack detection line;
the third port is connected with the touch control driving signal line;
the fourth port is connected with the touch sensing signal line;
outputting, by the integrated chip, a crack detection signal to the crack detection line and outputting a touch drive signal to the touch signal line includes:
and outputting a crack detection signal to the crack detection line through the first port, and outputting a touch control driving signal to the touch control signal line through the third port.
8. The method of claim 7, wherein the touch signal lines include touch driving signal lines and touch sensing signal lines, and the integrated chip includes:
a fifth port connected with the input end of the crack detection line and the touch control driving signal line;
the sixth port is connected with the output end of the crack detection line and the touch sensing signal line;
outputting, by the integrated chip, a crack detection signal to the crack detection line and outputting a touch drive signal to the touch signal line includes:
and inputting a crack detection signal to the crack detection line through the fifth port, and outputting a touch control driving signal to the touch control driving signal line through the fifth port after a preset time.
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| CN113238906B (en) * | 2021-06-04 | 2024-04-05 | 京东方科技集团股份有限公司 | Touch performance test method and system of curved surface display device and electronic equipment |
| CN113589968B (en) * | 2021-07-26 | 2023-08-08 | 昆山国显光电有限公司 | Display panel, display panel driving method and display device |
| CN113590398B (en) * | 2021-07-28 | 2023-10-03 | 武汉华星光电半导体显示技术有限公司 | Touch display panel and crack detection method thereof |
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| CN109559668A (en) * | 2019-01-28 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of display panel and its detection method, display device |
| CN110333268A (en) * | 2019-07-11 | 2019-10-15 | 京东方科技集团股份有限公司 | A kind of display panel, display device and crack detecting method |
| CN110634411A (en) * | 2019-11-07 | 2019-12-31 | 京东方科技集团股份有限公司 | Display module and packaging detection method thereof |
| CN110838273A (en) * | 2019-11-21 | 2020-02-25 | 武汉天马微电子有限公司 | Crack detection method for display panel |
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| CN110333268A (en) * | 2019-07-11 | 2019-10-15 | 京东方科技集团股份有限公司 | A kind of display panel, display device and crack detecting method |
| CN110634411A (en) * | 2019-11-07 | 2019-12-31 | 京东方科技集团股份有限公司 | Display module and packaging detection method thereof |
| CN110838273A (en) * | 2019-11-21 | 2020-02-25 | 武汉天马微电子有限公司 | Crack detection method for display panel |
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