CN115294903A

CN115294903A - Display panel, driving method thereof and display device

Info

Publication number: CN115294903A
Application number: CN202211049203.0A
Authority: CN
Inventors: 罗斯建; 吴常志; 许育民
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-04

Abstract

The invention discloses a display panel, a driving method thereof and a display device, wherein the display panel comprises a plurality of data lines, a driving chip and a detection unit; the data lines comprise an Xth data line and a Yth data line, wherein X =2n, Y =2n +1, n is an integer; the detection unit comprises a first detection switch group, the first detection switch group comprises a plurality of first detection switches, a first control end of each first detection switch is electrically connected with the driving chip, a first input end of each first detection switch is connected with a first end of the corresponding X data line, a first output end of each first detection switch is electrically connected with a first end of the corresponding Y data line, and the driving chip is respectively electrically connected with second ends of the corresponding X data line and the corresponding Y data line and used for detecting states of the corresponding X data line and the corresponding Y data line. The data line in the display panel can be detected through the detection unit, the problem that the limitation of large errors exists when the data line is judged to be abnormal depending on human eyes in the prior art is solved, and the detection accuracy of the display panel is guaranteed.

Description

Display panel, driving method thereof and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel, a driving method thereof and a display device.

Background

With the continuous development of display technologies, display panels are more and more widely used, for example, products such as mobile phones, computers, tablet computers, electronic books and the like, and in addition, the display panels can also be applied to instrument displays, control panels of smart homes and the like.

In the prior art, the display abnormity condition in the display panel cannot be detected, and the error of the obvious display abnormity condition is judged by human eyes.

Disclosure of Invention

The embodiment of the invention provides a display panel, a driving method thereof and a display device, which can detect data lines in the display panel through a detection unit, solve the problem of large error of data line detection in the prior art and ensure the detection accuracy of the display panel.

In a first aspect, an embodiment of the present invention provides a display panel, including a plurality of data lines, a driving chip, and a detection unit;

the data lines comprise an Xth data line and a Yth data line, wherein X =2n, Y =2n +1, n is an integer;

the detection unit comprises a first detection switch group, the first detection switch group comprises a plurality of first detection switches, and each first detection switch comprises a first control end, a first input end and a first output end; the first control end is electrically connected with the driving chip, the first input end is connected with the first end of the X-th data line, the first output end is electrically connected with the first end of the Y-th data line, and the driving chip is respectively electrically connected with the X-th data line and the second end of the Y-th data line and is used for detecting the states of the X-th data line and the Y-th data line.

In a second aspect, an embodiment of the present invention provides a display device, including the display panel according to any one of the first aspects.

In a third aspect, an embodiment of the present invention provides a driving method for a display panel, which is applied to the display panel described in any one of the first aspect, where the display panel includes a detection stage, where the detection stage includes a first detection stage;

the driving method includes:

in the first detection stage, a detection control signal is output to the first control end, a detection signal is driven to be output to the X-th data line or the Y-th data line, and the states of the X-th data line and the Y-th data line are determined according to a signal fed back by the Y-th data line or the X-th data line.

The display panel provided by the embodiment of the invention comprises a plurality of data lines, a driving chip and a detection unit, wherein the detection unit comprises a first detection switch group, the first detection switch group comprises a plurality of first detection switches, and the data lines comprise an Xth data line and a Yth data line, wherein X =2n, Y =2n +1, n is an integer. Furthermore, the control end of a plurality of first detection switches is connected with the drive chip, the first input end and the first output end of the first detection switches are respectively connected with the X-th data line and/or the Y-th data line, the states of the X-th data line and the Y-th data line are detected through the first detection switches, namely, the detection units are arranged, the connection mode of the detection switches and the data lines in the detection units is controlled, the state detection of the data lines is realized, the problem that the prior art depends on human eyes to judge the abnormal data lines is solved, the limitation of large errors exists, and the detection accuracy of the display panel is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention;

fig. 8 is a flowchart of a driving method of a display panel according to an embodiment of the present invention;

fig. 9 is a flowchart of another driving method of a display panel according to an embodiment of the invention;

fig. 10 is a flowchart of another driving method of a display panel according to an embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and referring to fig. 1, a display panel 10 according to an embodiment of the present invention includes a plurality of data lines 100, a driving chip 200, and a detection unit 300; the data lines 100 include an X-th data line 110 and a Y-th data line 120, where X =2n, Y =2n +1, n is an integer; the detection unit 300 includes a first detection switch group 310, the first detection switch group 310 includes a plurality of first detection switches 311, the first detection switches 311 include a first control terminal 311A, a first input terminal 311B, and a first output terminal 311C; the first control terminal 311A is electrically connected to the driving chip 200, the first input terminal 311B is connected to the first terminal 111 of the X-th data line 110, the first output terminal 311C is electrically connected to the first terminal 121 of the Y-th data line 120, and the driving chip 200 is electrically connected to the

second terminals

112 and 122 of the X-th data line 110 and the Y-th data line 120, respectively, for detecting states of the X-th data line 110 and the Y-th data line 120.

The display panel 10 includes a plurality of data lines 100 and sub-pixels (not specifically shown in the figure) connected to the data lines 100, and the data signals transmitted through the data lines 100 ensure that the sub-pixels emit light, thereby implementing the display function of the display panel 10. Further, the display panel 10 further includes a driving chip 200, and the driving chip 200 is configured to provide a display signal to the data line 100, so as to drive the display panel 10 to implement a display function. In the manufacturing process of the display panel 10 or the service life of the display panel 10, the data lines 100 may have abnormal states during signal transmission, and for example, a case that one of the data lines 100 is disconnected or shorted affects normal display of the display panel 10.

Specifically, the display panel 10 further includes a detection unit 300, and the detection of the state of the data line 100 is implemented by disposing the detection unit 300. In the prior art, the abnormality of the signal transmission of the data line 100 can be judged only when the human eyes can recognize the abnormal display effect of the display panel 10, but the display abnormality of the display panel 10 is not easily recognized by the human eyes, i.e. the judgment method has large error, so the detection accuracy of the data line 100 is poor. However, the detection unit 300 disposed on the basis of the display panel 10 can avoid the above-mentioned errors, and improve the accuracy of the judgment of the data line 100.

Specifically, the display panel 10 includes a plurality of data lines 100, the data lines 100 include an X-th data line 110 and a Y-th data line 120, where X =2n, Y =2n +1, n is an integer, i.e., the X-th data line 110 is an even data line 100 in the display panel 10, the Y-th data line 120 is an odd data line 100 in the display panel 10, and the X-th data line 110 and the Y-th data line 120 are adjacent to each other. Further, the detection unit 300 includes a first detection switch group 310, and the first detection switch group 310 includes a plurality of first detection switches 311, each first detection switch 311 is connected to the X-th data line 110 and the Y-th data line 120, respectively, and based on the detection signal transmitted by the driving chip 200, the detection of the states of the X-th data line 110 and the Y-th data line 120 is realized, that is, whether there are open circuits or short circuits in the X-th data line 110 and the Y-th data line 120 or not is determined, so as to ensure the determination of the state of the data line 100 in the display panel 10.

Specifically, referring to fig. 1, the first detection switch 311 includes a first control terminal 311A, a first input terminal 311B, and a first output terminal 311C, and the first control terminal 311A is electrically connected to the driving chip 200, that is, the driving chip 200 can control whether the first detection switch 311 operates. Further, the first input terminal 311B is connected to the first terminal 111 of the X-th data line 110, and the first output terminal 311C is electrically connected to the first terminal 121 of the Y-th data line 120, i.e. the first detection switch 311 is ensured to be connected to the X-th data line 110 and the Y-th data line 120. Meanwhile, the driving chip 200 is electrically connected to the

second ends

112 and 122 of the X-th data line 110 and the Y-th data line 120, respectively, that is, the driving chip 200 may transmit a detection signal to the data line 100, and determine whether to receive a feedback detection signal based on the state of the first detection switch 311, thereby determining the state of the data line 100.

For example, referring to fig. 1, the driving chip 200 is connected to the first control terminal 311A, the first control terminal 311A controls the first detection switch 311 to be turned on, and the xth data line 110 and the yth data line 120 form a loop based on the first detection switch 311, when the driving chip 200 transmits a detection signal to the xth data line 110, and if the driving chip 200 can receive a feedback detection signal through the yth data line 120, it is verified that the xth data line 110 and the yth data line 120 are in a non-open state, and if the driving chip 200 does not have a feedback detection signal through the yth data line 120, it is verified that the xth data line 110 and the yth data line 120 are in an open state.

For example, referring to fig. 1, the driving chip 200 is connected to the first control terminal 311A, the first control terminal 311A controls the first detection switch 311 to turn off, and meanwhile, the xth data line 110 and the yth data line 120 do not form a loop based on the first detection switch 311, when the driving chip 200 transmits a detection signal to the xth data line 110, and if the driving chip 200 can receive a feedback detection signal through the yth data line 120, it is verified that the xth data line 110 and the yth data line 120 are in a short-circuit state, and if the driving chip 200 does not have a feedback detection signal through the yth data line 120, it is verified that the xth data line 110 and the yth data line 120 are in a non-short-circuit state. The embodiment of the present invention does not specifically limit the abnormal condition of the data line 100, and the above process only describes the short circuit and the open circuit.

Further, the first input terminal 311B of the first detection switch 311 is connected to the Y-th data line 120, and the first output terminal 311C is connected to the X-th data line 110 (not specifically shown in the figure), and the signal transmission directions are opposite, but the detection principle is the same, and details are not described herein.

To sum up, in the display panel provided in the embodiment of the present invention, the control ends of the plurality of first detection switches are connected to the driving chip, and the first input ends and the first output ends of the plurality of first detection switches are respectively connected to the X-th data line and/or the Y-th data line, so as to detect the states of the X-th data line and the Y-th data line through the first detection switches, that is, by setting the detection unit and controlling the connection manner between the detection switches and the data lines in the detection unit, the state detection of the data lines is realized, which solves the limitation that the prior art has a large error when the data lines are judged to be abnormal depending on human eyes, and ensures the detection accuracy of the display panel.

Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 2, the detecting unit 300 further includes a second detecting switch group 320, where the second detecting switch group 320 includes a plurality of second detecting switches 321; data line 100 also includes a Z-th data line 130, where Z =2n +2, n is an integer; the second detection switch 321 includes a second control terminal 321A, a second input terminal 321B, and a second output terminal 321C; the second control terminal 321A is electrically connected to the driving chip 200, the second input terminal 321B is connected to the first terminal 121 of the Y-th data line 120, the second output terminal 321C is electrically connected to the first terminal 131 of the Z-th data line 130, and the driving chip 200 is electrically connected to the Y-th data line 120 and the second terminals 122 and 123 of the Z-th data line 130, respectively, for detecting states of the Y-th data line 120 and the Z-th data line 130.

Specifically, the data lines 100 further include a Z-th data line 130, where Z =2n +2, n is an integer, that is, the Z-th data line 130 is also an even number of data lines 100 in the display panel 10. And, the Y-th data line 120 is adjacent to the X-th data line 110 and the Z-th data line 130, respectively. Meanwhile, if the xth, yth and Z-th data lines 110, 120 and 130 are in one group, the Z-th data line 130 is the xth data line 110 in the next group. Illustratively, the X-th data line 110 is a 10 th data line, the Y-th data line 120 is an 11 th data line, and the Z-th data line 130 is a 12 th data line, and if the 10 th, 11 th, and 12 th data lines are in a first group, the 12 th, 13 th, and 14 th data lines are in a second group, that is, the 12 th data line is the Z-th data line 130 in the first group, and the 12 th data line is also the X-th data line 110 in the second group. The numerical value of n is not particularly limited in the embodiments of the present invention.

Further, the detection unit 300 adds a second detection switch group 320 to the first detection switch group 310, and the second detection switch group 320 includes a plurality of second detection switches 321. And, each of the second detection switches 321 is connected to the Y-th data line 120 and the Z-th data line 130, respectively. Meanwhile, the first detection switch 311 and the second detection switch 321 are both controlled to be turned on or off by the driving chip 200, so that the data lines connected with the first detection switch and the second detection switch are turned on or off. The detection signal transmitted thereto by the driving chip 200, and based on whether the driving chip 200 acquires the fed-back detection signal, the state of the data line 100 is determined. The process of determining the states of the Y-th data line 120 and the Z-th data line 130 based on the second detection switch 321 is the same as the process of determining the first detection switch 321, and will not be described in detail herein. That is, the detecting unit 300 provided in the display panel 10 can detect the states of the X-th data line 110 and the Y-th data line 120, and can also detect the states of the Y-th data line 120 and the Z-th data line 130. That is, the detection of the data line 100 is more embodied, and the accuracy of the state judgment of the data line 100 is improved.

Illustratively, when the display panel 10 is in an open circuit state with respect to the X-th data line 110 and the Y-th data line 120 through the first detection switch 311, if the driving chip 200 is connected to the second control terminal 321A, the second control terminal 311A controls the second detection switch 321 to be turned on, and the Y-th data line 120 and the Z-th data line 130 form a loop based on the second detection switch 321, when the driving chip 200 transmits a detection signal to the Y-th data line 120, and if the driving chip 200 can receive a feedback detection signal through the Z-th data line 120, it is verified that the Y-th data line 120 and the Z-th data line 130 are in a non-open circuit state, and the X-th data line 110 can be determined to be in an open circuit state, and the Y-th data line 120 and the Z-th data line 130 are in a non-open circuit state according to a detection result of the first detection switch 311, so as to achieve further accurate determination of the data lines 100, and improve accuracy of determination of the data lines 100 of the display panel 10.

Further, when the display panel 10 is in a short-circuit state with respect to the X-th data line 110 and the Y-th data line 120 through the first detection switch 311, if the driving chip 200 is connected to the second control terminal 321A, the second control terminal 311A controls the second detection switch 321 to be turned off, and the Y-th data line 120 and the Z-th data line 130 do not form a loop based on the second detection switch 321, when the driving chip 200 transmits a detection signal to the Y-th data line 120, and if the driving chip 200 does not receive a detection signal fed back through the Z-th data line 120, it is verified that the Y-th data line 120 and the Z-th data line 130 are in a non-short-circuit state, and in combination with a detection result of the first detection switch 311, the X-th data line 110 can be determined to be short-circuited, and the Y-th data line 120 and the Z-th data line 130 are not short-circuited, so that the data line 100 is further accurately determined, and the accuracy of determining the data line 100 of the display panel 10 is improved. There are a plurality of kinds of detection results of the data line 100 based on the first detection switch 311 and the second detection switch 312, and a description thereof will not be made one by one.

With continued reference to fig. 2, the first detection switch 311 and the second detection switch 321 are alternately turned on.

The display panel 10 controls the first detection switch 311 and the second detection switch 321 to be turned on and off by the driving chip 200, so as to determine the states of the different data lines 100. The driving chip 200 controls the first detecting switch 311 and the second detecting switch 321 by alternately turning on the first detecting switch 311 and the second detecting switch 321, that is, the driving chip 200 controls the first detecting switch 311 and the second detecting switch 321 in a time-sharing manner. The first detection switch 311 may be controlled to be turned on and off first, and then the second detection switch 321 is controlled to be turned on or off, or the second detection switch 321 may be controlled to be turned on and off first, and then the first detection switch 311 is controlled to be turned on or off, which is not specifically limited in this order in the embodiment of the present invention.

Specifically, the first detection switch 311 and the second detection switch 321 are controlled to be alternately turned on in a time-sharing manner, so that gradual judgment of different data lines 100 is realized, and on the basis of judgment of the data lines 100 by the first detection switch 311 or the second detection switch 321, the data lines 100 are judged on the basis of the second detection switch 321 or the first detection switch 311, so that the accuracy of state judgment of the data lines 100 is improved, and the accuracy of detection of the display panel 10 is ensured.

As shown in fig. 2, the display panel 10 further includes a first control signal line 410 and a second control signal line 420, wherein the first control signal line 410 is electrically connected to the driving chip 200 and the plurality of first control terminals 311A, respectively, and the second control signal line 420 is electrically connected to the driving chip 200 and the plurality of second control terminals 321A, respectively.

The display panel 10 includes a first control signal line 410 and a second control signal line 420, wherein the driving chip 200 controls the first detecting switch 311 to be turned on and off through the first control signal line 410, and the driving chip 200 controls the second detecting switch 321 to be turned on and off through the second control signal line 420. By providing two control lines, i.e. the first control signal line 410 and the second control signal line 420, time-sharing control over the first detection switch 311 and the second detection switch 321 is ensured, i.e. the first detection switch 311 and the second detection switch 321 are alternately turned on.

Fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, and referring to fig. 3 and 4, the first detection switch 311 includes an N-type transistor, and the second detection switch 321 includes a P-type transistor; alternatively, the first detection switch 311 includes a P-type transistor, and the second detection switch 321 includes an N-type transistor; the display panel 10 further includes a third control signal line 430, and the third control signal line 430 is electrically connected to the driving chip 200, the first control terminal 311A and the second control terminal 321A, respectively.

In order to realize more accurate detection of the data lines 100, the driving chip 200 performs time-sharing control on the first detection switch 311 and the second detection switch 321 in the display panel 10. Referring to fig. 3 and 4, by setting the third control signal line 430, the first detection switch 311 and the second detection switch 321 are respectively controlled, the number of control signal lines in the display panel 10 is reduced, and then the routing occupied area of the display panel 10 can be reduced, and further the display area occupation ratio of the display panel 10 is improved, that is, the display effect of the display panel 10 is improved.

Specifically, the display panel 10 uses a third control signal line 430 to implement time-sharing control on the first detection switch 311 and the second detection switch 321, that is, the types of the first detection switch 311 and the second detection switch 321 are different, so as to ensure that the driving chip 200 transmits different electrical signals through the third control signal line 430 to control different detection switches. Illustratively, referring to fig. 3, the first detection switch 311 includes an N-type transistor, and the second detection switch 321 includes a P-type transistor, that is, when the driving chip 200 transmits a high-level signal through the third control signal line 430, the first detection switch 311 is controlled to be turned on, and simultaneously the second detection switch 321 is controlled to be turned off, and when the driving chip 200 transmits a low-level signal through the third control signal line 430, the first detection switch 311 is controlled to be turned off, and simultaneously the second detection switch 321 is controlled to be turned on, that is, the first detection switch 311 and the second detection switch 321 are alternately turned on. Illustratively, referring to fig. 4, the first detection switch 311 includes a P-type transistor, and the second detection switch 321 includes an N-type transistor, that is, when the driving chip 200 transmits a high-level signal through the third control signal line 430, the first detection switch 311 is controlled to be turned off, and the second detection switch 321 is controlled to be turned on, and when the driving chip 200 transmits a low-level signal through the third control signal line 430, the first detection switch 311 is controlled to be turned on, and the second detection switch 321 is controlled to be turned off, that is, the first detection switch 311 and the second detection switch 321 are alternately turned on.

Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 5, the detecting unit 300 further includes a second detecting switch group 320 and a third detecting switch group 330, the second detecting switch group 320 includes a plurality of second detecting switches 321, and the third detecting switch group 330 includes a plurality of third detecting switches 331; data line 100 also includes a Z-th data line 130, where Z =2n +3, n is an integer; the second detection switch 321 includes a second control terminal 321A, a second input terminal 321B, and a second output terminal 321C; the second control terminal 321A is electrically connected to the driving chip 200, the second input terminal 321B is connected to the first terminal 121 of the Y-th data line 120, the second output terminal 321C is electrically connected to the first terminal 131 of the Z-th data line 130, and the driving chip 200 is electrically connected to the Y-th data line 120 and the second terminals 122 and 123 of the Z-th data line 130, respectively, for detecting states of the Y-th data line 120 and the Z-th data line 130; the third detection switch 331 includes a third control terminal 331A, a third input terminal 331B, and a third output terminal 331C; the third control terminal 331A is electrically connected to the driving chip 200, the third input terminal 331B is connected to the first terminal 111 of the xth data line 110, the third output terminal 331C is electrically connected to the first terminal 111 of the xth data line 130, and the driving chip 200 is electrically connected to the xth data line 110 and the second terminals 112 and 132 of the xth data line 130, respectively, for detecting states of the xth data line 110 and the xth data line 130.

Specifically, the data lines 100 further include a Z-th data line 130, where Z =2n +2, n is an integer, that is, the Z-th data line 130 is also an even data line 100 in the display panel 10. And, the Y-th data line 120 is adjacent to the X-th data line 110 and the Z-th data line 130, respectively. Meanwhile, if the xth, yth and Z-th data lines 110, 120 and 130 are in one group, the Z-th data line 130 is multiplexed as the xth data line 110 in the next group.

Further, the detection unit 300 adds a second detection switch group 320 and a third detection switch group 330 to the first detection switch group 310, and the second detection switch group 320 includes a plurality of second detection switches 321 and the third detection switch group 330 includes a plurality of third detection switches 331. Also, each of the second detection switches 321 is connected to the Y-th data line 120 and the Z-th data line 130, respectively, and each of the third detection switches 331 is connected to the X-th data line 110 and the Z-th data line 130, respectively. Meanwhile, the first detection switch 311, the second detection switch 321, and the third detection switch 331 are all controlled to be turned on or off by the driving chip 200, so that the data lines connected thereto are turned on or off. The driving chip 200 transmits the detection signal thereto, and determines the state of the data line 100 based on whether the driving chip 200 acquires the fed-back detection signal. The process of determining the states of the Y-th data line 120 and the Z-th data line 130 based on the second detection switch 321 and the process of determining the states of the X-th data line 110 and the Z-th data line 130 based on the third detection switch 331 are the same as the process of determining the first detection switch 321, and are not described herein again. That is, the detecting unit 300 provided in the display panel 10 can detect the states of the X-th data line 110 and the Y-th data line 120, can also detect the states of the Y-th data line 120 and the Z-th data line 130, and can also detect the states of the X-th data line 110 and the Z-th data line 130. That is, the detection of the data line 100 is more embodied, and the accuracy of the state judgment of the data line 100 is further improved.

In other words, when the detection unit 300 in the display panel 10 includes the first detection switch group 310, the data line 100 in the display panel 10 is determined, and the states of the two data lines 100 connected to the first detection switch 311 are determined, so that the accuracy of the determination is improved compared with that of human eyes, and the accuracy of the determination of the data line 100 in the display panel 10 is ensured. And then by adding the second detection switch group 320 in the detection unit 300, that is, under the detection result of the driving chip 200 based on the first detection switch 311, the further judgment of the data line 100 through the second detection switch 321 is realized, and based on the diversity of the detection result, the judgment of the detection result of each specific data line 100 can be preliminarily realized, that is, the accuracy of the judgment of the display panel 10 on the data line 100 is improved. Further, the second detection switch group 320 and the third detection switch group 330 are added on the basis of the first detection switch group 310, that is, corresponding detection results are generated for every two data lines 100, and the driving chip 200 can further accurately judge each data line 200 based on various detection results, that is, the diversity of the detection results is broken, and the accuracy of the display panel 10 in judging the data lines 100 is further improved.

For example, taking the short circuit of the data line 100 as an example, referring to fig. 5, the driving chip 200 detects the states of the X-th data line 110 and the Y-th data line 120 through the first detection switch 311, and if the detection result is a short circuit, the X-th data line 110 or the Y-th data line 120 or both the X-th data line 110 and the Y-th data line 120 may be shorted. The driving chip 200 detects the states of the Y-th data line 120 and the Z-th data line 130 through the second detection switch 321, and if the detection result indicates that the Y-th data line 120 and the Z-th data line 130 are not in a short circuit state, it further indicates that the X-th data line 110 is in a short circuit state; if the detection result is a short circuit, the Y-th data line 120 is short-circuited, the Z-th data line 130 is short-circuited, or both the Y-th data line 120 and the Z-th data line 130 are short-circuited, and the state of the X-th data line 110 cannot be determined. In this case, the driving chip 200 detects the states of the X-th data line 110 and the Z-th data line 130 through the third detection switch 331, and if the detection result is a non-short circuit, it proves that the X-th data line 110 and the Z-th data line 130 are in a short circuit state and the Y-th data line 120 is in a short circuit state. That is, the driving chip 200 can gradually obtain the state of the data line 100 according to the detection results of different detection switches, so as to improve the accuracy of obtaining the state of the data line 100, that is, the accuracy of judging the data line 100 by the display panel 10.

With continued reference to fig. 5, the first detection switch 311, the second detection switch 321, and the third detection switch 331 are alternately turned on.

The display panel 10 controls the first detection switch 311, the second detection switch 321, and the third detection switch 331 to be turned on and off through the driving chip 200, so as to gradually determine states of different data lines 100. The driving chip 200 alternately turns on the first detection switch 311, the second detection switch 321 and the third detection switch 331, that is, the driving chip 200 controls the first detection switch 311, the second detection switch 321 and the third detection switch 331 in a time-sharing manner. The order of controlling the first detection switch 311, the second detection switch 321, and the third detection switch 331 to be turned on is not specifically limited in the embodiments of the present invention.

Specifically, the first detection switch 311, the second detection switch 321 and the third detection switch 331 are controlled in a time-sharing manner to be alternately turned on, so that gradual judgment of different data lines 100 is realized, and based on the judgment of the first detection switch 311, the second detection switch 321 and the third detection switch 331 on the data lines 100, the states of the data lines 100 are analyzed, so that the accuracy of judging the states of the data lines 100 is improved, and the accuracy of detecting the display panel 10 of the display panel 10 is ensured.

With continued reference to fig. 1 to 5, the detecting unit 300 is located on a side of the data line 100 away from the driving chip 200.

Specifically, as shown in fig. 1 to 5, the input end and the output end of the detection switch in the detection unit 300 are all connected with the data line 100 through routing, that is, the occupied space of routing in the display panel 10 is reduced, the detection unit 300 is disposed on the side of the data line 100 away from the driving chip 200, that is, the detection unit 300 is disposed on the side of the top end of the display panel 10 away from the driving chip 200, the routing space in the display panel 10 is saved, which is helpful for realizing the narrow frame of the display panel 10, and the overall display effect of the display panel 10 is improved.

Fig. 6 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention, and referring to fig. 1 and fig. 6, the display panel 10 includes a display area 100A, the display area 100A includes a plurality of driving circuits 500, the driving circuits include thin film transistors 510, and the detecting units 300 and the thin film transistors 510 are disposed on the same layer.

As shown in fig. 1 and fig. 6, the display panel 10 includes a display area 100A, and the display function of the display panel 10 is implemented by the display area 100A. Further, the display panel 10 further includes a driving substrate 540, and the display panel 10 further includes a light emitting element 550, that is, a sub-pixel of the display panel 10 in the display area 100A, so as to implement light emitting display of the display panel 10. Specifically, referring to fig. 6, the light emitting element 550 is located on the side of the driving substrate 540 and is electrically connected to the driving substrate 540. The driving substrate 540 includes a substrate 530 and a driving circuit 500, and the driving circuit 500 is electrically connected to the light emitting element 550, and drives the light emitting element 550 to emit light by acquiring a data signal provided by the driving chip 200 and reusing the data signal to provide a driving signal to the light emitting element 550.

Further, as shown in fig. 6, the driving circuit 500 may include at least one thin film transistor 510, and the thin film transistor 510 includes a source/drain, a gate, an active layer, and the like. Further, the driving circuit 500 includes an insulating layer and a metal layer alternately disposed, and specifically includes: the buffer layer, the active layer, the gate insulating layer, the gate electrode layer, the inter-metal insulating layer, the capacitor metal layer, the interlayer insulating layer, the source/drain layer, the planarization layer, etc. may be arranged by those skilled in the art according to practical situations, and the embodiments of the driving circuit 500 are not limited herein. Further, by arranging the detection unit 300 and the thin film transistor 510 in the same layer, the number of layers of the display panel 10 can be reduced, which is beneficial to realizing the thin design of the display panel 10 while reducing the manufacturing cost.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 7 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and as shown in fig. 7, the display device 1 includes the display panel 10 described in any of the embodiments above, so that the display device 1 provided in the embodiment of the present invention has the corresponding beneficial effects in the embodiments above, and details are not repeated here. For example, the display device 1 may be an electronic device such as a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and an on-vehicle display device, which is not limited in this embodiment of the present invention.

Based on the same inventive concept, the embodiment of the invention also provides a driving method of a display panel, and the display panel comprises a detection stage, wherein the detection stage comprises a first detection stage; the driving method includes:

in the first detection stage, a detection control signal is output to the first control end, a detection signal is driven to the output of the X-th data line or the Y-th data line, and the states of the X-th data line and the Y-th data line are determined according to a signal fed back by the Y-th data line or the X-th data line.

The display panel comprises a plurality of data lines and sub-pixels connected with the data lines, and the sub-pixels are guaranteed to emit light through data signals transmitted by the data lines, so that the display function of the display panel is realized. Furthermore, the display panel further comprises a driving chip, and the driving chip is used for providing a display signal for the data line and further driving the display panel to realize a display function. In the manufacturing process of the display panel or the service life of the display panel, the data lines may be in an abnormal state in the signal transmission process, and for example, the normal display of the display panel is affected by the open circuit or short circuit of a certain data line.

Furthermore, the display panel detects the state of the data line by arranging the detection unit, so that the accuracy of data line judgment is improved. Specifically, the display panel includes a plurality of data lines, the data lines include an X-th data line and a Y-th data line, where X =2n, Y =2n +1, n is an integer, that is, the X-th data line is an even number of data lines in the display panel, the Y-th data line is an odd number of data lines in the display panel, and the X-th data line and the Y-th data line are adjacent. Furthermore, the detection unit comprises a first detection switch group, the first detection switch group comprises a plurality of first detection switches, each first detection switch is respectively connected with the Xth data line and the Yth data line, and detection of the states of the Xth data line and the Yth data line is achieved based on detection signals transmitted by the driving chip, namely whether open circuit or short circuit exists in the Xth data line and the Yth data line or not is judged, and then state judgment of the data lines in the display panel is guaranteed.

Specifically, the first control end of the driving chip outputs a detection control signal, when the first detection switch is controlled to be switched on, the driving chip outputs a driving detection signal to the X-th data line or the Y-th data line, if the driving chip receives a signal fed back by the Y-th data line or the X-th data line, it is determined that the X-th data line and the Y-th data line are in a non-open circuit state, and if the driving chip does not receive the signal, it is determined that the X-th data line and the Y-th data line are in an open circuit state. Similarly, when the first detection switch is controlled to be turned off, a driving detection signal is output to the xth data line or the yth data line, if the driving chip receives a signal fed back by the yth data line or the xth data line, the xth data line and the yth data line are determined to be in a short-circuit state, and if the driving chip does not receive the signal, the xth data line and the yth data line are determined to be in a non-short-circuit state, that is, the status of the xth data line and the yth data line is judged.

Optionally, the display panel includes a display stage, the display stage includes a display signal writing stage and a display holding stage, and the detection stage is multiplexed with the display holding stage in time sequence.

The display panel comprises a display stage, and the display stage comprises a display signal writing stage, namely, the driving chip transmits a display signal to the data line to control the display panel to realize a display function. Meanwhile, the display panel also comprises a display maintaining stage, the driving chip does not transmit display signals to the data lines in the stage, namely, the detection process of the driving chip to the data lines can be realized in the process, namely, the display maintaining stage is reused in the detection stage, the state detection of the data lines is realized under the condition that the normal display of the display panel is not influenced, and the display effect of the display panel is ensured.

In summary, according to the driving method of the display panel provided by the embodiment of the present invention, the control ends of the plurality of first detection switches are connected to the driving chip, and the driving chip determines the state of the data line by controlling the first detection switches, transmitting the driving detection signal to the data line and receiving the feedback signal, so as to implement the state detection of the data line, solve the limitation that the prior art depends on human eyes to determine that the data line is abnormal, have a large error, and ensure the accuracy of the detection of the display panel.

Further, an embodiment of the present invention further provides a driving method for a display panel, where the display panel refines the driving method, and specifically details how to judge a data line state, and fig. 8 is a flowchart of the driving method for a display panel provided in the embodiment of the present invention, where the driving method specifically includes:

s110, outputting a turn-on control signal to the first control terminal to control the first detection switch to turn on.

In the display panel, the driving chip is connected with the first detection switch through the first control end, and the first detection switch is controlled to be switched on and off through the first control end. Specifically, when it is determined whether the data line connected to the first detection switch is in the open state, the driving chip outputs a turn-on control signal to the first control terminal to control the turn-on of the first detection switch, that is, the first detection switch is in the turn-on state, and the first input terminal and the first output terminal of the first detection switch are in the turn-on state.

And S120, outputting a first driving detection signal to the X-th data line or the Y-th data line.

Further, when the first detection switch is turned on, the first input terminal and the first output terminal of the first detection switch are in an on state. Illustratively, when the first input terminal is connected to the xth data line and the first output terminal is connected to the yth data line, the driving chip transmits the first driving detection signal to the xth data line. When the first input end is connected with the Y-th data line and the first output end is connected with the X-th data line, the driving chip transmits a first driving detection signal to the Y-th data line. The first driving detection signal is a detection signal for detecting whether the X-th data line and the Y-th data line are open circuits or not by the driving chip.

And S130, when the first driving detection signal fed back by the Y-th data line or the X-th data line is not received, the state of the X-th data line or the Y-th data line is an open circuit state.

Illustratively, when the first input end is connected to the xth data line and the first output end is connected to the yth data line, if the driver chip does not receive the first driving detection signal fed back by the yth data line, it is verified that the state of the xth data line or the yth data line is an open circuit state. Or when the first input end is connected with the Yth data line and the first output end is connected with the Xth data line, if the driving chip does not receive the first driving detection signal fed back by the Xth data line, the state of the Xth data line or the Yth data line is proved to be an open circuit state.

And S140, when a first driving detection signal fed back by the Y-th data line or the X-th data line is received, the state of the X-th data line and the Y-th data line is in a conducting state.

Illustratively, when the first input end is connected with the xth data line and the first output end is connected with the yth data line, if the driving chip receives the first driving detection signal fed back by the yth data line, it proves that the state of the xth data line or the yth data line is the non-open circuit state. Or, when the first input end is connected with the Y-th data line and the first output end is connected with the X-th data line, if the driving chip receives a first driving detection signal fed back by the X-th data line, it is proved that the state of the X-th data line or the Y-th data line is a non-open state, that is, the states of the X-th data line and the Y-th data line are on states.

And S150, outputting a turn-off control signal to the first control end to control the turn-off of the first detection switch.

Further, when the state of the xth data line and the state of the yth data line are in an on state, the driving chip outputs an off control signal to the first control terminal to control the first detection switch to be turned off, that is, the first detection switch is in an off state, and the first input terminal and the first output terminal of the first detection switch are in an off state.

S160, outputting a second driving detection signal to the X-th data line or the Y-th data line.

Further, when the first detection switch is turned off, the first input terminal and the first output terminal of the first detection switch are in an off state. Illustratively, when the first input terminal is connected to the xth data line and the first output terminal is connected to the yth data line, the driving chip transmits the second driving detection signal to the xth data line. When the first input end is connected with the Y-th data line and the first output end is connected with the X-th data line, the driving chip transmits a second driving detection signal to the Y-th data line. The second driving detection signal is a detection signal for detecting whether the X-th data line and the Y-th data line are short-circuited by the driving chip.

And S170, when a second driving detection signal fed back by the Y-th data line or the X-th data line is received, the state of the X-th data line and the Y-th data line is a short circuit state.

Illustratively, when the first input end is connected with the xth data line and the first output end is connected with the yth data line, if the driving chip receives a second driving detection signal fed back by the yth data line, it proves that the state of the xth data line or the yth data line is a short circuit state. Or when the first input end is connected with the Y-th data line and the first output end is connected with the X-th data line, if the driving chip receives a second driving detection signal fed back by the X-th data line, the state of the X-th data line or the Y-th data line is proved to be a short-circuit state.

And S180, when the second driving detection signal fed back by the Y-th data line or the X-th data line is not received, the state of the X-th data line and the Y-th data line is a non-short-circuit state.

Illustratively, when the first input end is connected with the xth data line and the first output end is connected with the yth data line, if the driving chip does not receive the second driving detection signal fed back by the yth data line, it proves that the state of the xth data line or the yth data line is a non-short-circuit state. Or, when the first input end is connected with the Y-th data line and the first output end is connected with the X-th data line, if the driving chip does not receive the second driving detection signal fed back by the X-th data line, it is proved that the state of the X-th data line or the Y-th data line is a non-short-circuit state.

To sum up, in the driving method of a display panel according to the embodiment of the present invention, the control ends of the plurality of first detection switches are connected to the driving chip, and the first input ends and the first output ends of the plurality of first detection switches are respectively connected to the X-th data line and/or the Y-th data line, so as to detect the states of the X-th data line and the Y-th data line through the first detection switches, that is, by setting the detection unit and controlling the connection manner between the detection switches and the data lines in the detection unit, the state detection of the data lines is realized, which solves the limitation of large error when the prior art depends on human eyes to determine that the data lines are abnormal, and ensures the detection accuracy of the display panel.

Further, fig. 9 is a flowchart of another driving method for a display panel according to an embodiment of the present invention, and referring to fig. 9, the driving method includes:

s210, in the first detection stage, a detection control signal is output to the first control end, a detection signal is driven to the output of the X-th data line or the Y-th data line, and the states of the X-th data line and the Y-th data line are determined according to a signal fed back by the Y-th data line or the X-th data line.

And S220, in the second detection stage, outputting a detection control signal to a second control end, outputting a driving detection signal to the Y-th data line or the Z-th data line, and determining the states of the Y-th data line and the Z-th data line according to a signal fed back by the Z-th data line or the Y-th data line.

The data lines further include a Z-th data line, wherein Z =2n +2, n is an integer, that is, the Z-th data line is also an even number of data lines in the display panel. And, the Y-th data line is adjacent to the X-th and Z-th data lines, respectively. Meanwhile, if the Xth data line, the Yth data line and the Z-th data line are in one group, the Z-th data line is the Xth data line in the next group. Illustratively, the X-th data line is a 10 th data line, the Y-th data line is an 11 th data line, and the Z-th data line is a 12 th data line, and if the 10 th, 11 th, and 12 th data lines are in the first group, the 12 th, 13 th, and 14 th data lines are in the second group, that is, the 12 th data line is the Z-th data line in the first group, and the 12 th data line is also the X-th data line in the second group. The embodiment of the present invention does not specifically limit the value of n.

Further, the detection unit adds a second detection switch group on the basis of the first detection switch group, and the second detection switch group includes a plurality of second detection switches. And, each second detection switch is connected to the Y-th data line and the Z-th data line, respectively. Meanwhile, the first detection switch and the second detection switch are controlled to be switched on or switched off through the driving chip, and the data lines connected with the first detection switch and the second detection switch are switched on or switched off. The driving chip transmits the detection signal to the driving chip, and the state of the data line is judged based on whether the driving chip acquires the fed back detection signal. The process of determining the states of the Y-th data line and the Z-th data line based on the second detection switch is the same as that of the first detection switch, and is not described herein again. That is, the display panel is provided with a detection unit capable of detecting the states of the X-th data line and the Y-th data line, and also capable of detecting the states of the Y-th data line and the Z-th data line. The detection of the data line is more specific, and the accuracy of data line state judgment is improved.

Illustratively, when the display panel is in an open circuit state with respect to the X-th data line and the Y-th data line through the first detection switch, if the display panel is connected to the second control terminal through the driving chip, the second detection switch is controlled to be turned on through the second control terminal, and the Y-th data line and the Z-th data line form a loop based on the second detection switch, when the driving chip transmits a detection signal to the Y-th data line, and if the driving chip can receive a feedback detection signal through the Z-th data line, it is proved that the Y-th data line and the Z-th data line are in a non-open circuit state, and the detection result of the first detection switch is combined to determine that the X-th data line is open circuit, and the Y-th data line and the Z-th data line are non-open circuit, thereby further accurately determining the data lines, and improving the accuracy of determining the data lines of the display panel.

Illustratively, when the display panel is in a short state for the X-th data line and the Y-th data line through the first detection switch, if the display panel is connected to the second control terminal through the driving chip, the second control terminal controls the second detection switch to turn off, and meanwhile the Y-th data line and the Z-th data line do not form a loop based on the second detection switch, when the driving chip transmits a detection signal to the Y-th data line and if the driving chip does not receive a feedback detection signal through the Z-th data line, it is proved that the Y-th data line and the Z-th data line are in a non-short-circuited state, and in combination with a detection result of the first detection switch, it can be determined that the X-th data line is in a short circuit and the Y-th data line and the Z-th data line are in a non-short circuit, thereby further accurate determination of the data lines is realized, and accuracy of determination of the data lines of the display panel is improved. There are a plurality of kinds of detection results of the data line based on the first detection switch and the second detection switch, and a description thereof will not be made one by one.

In summary, in the driving method of the display panel provided in the embodiment of the present invention, the second detection switch group is added to the detection unit, so as to further improve the accuracy of detecting the data lines and ensure the accuracy of detecting the display panel.

Further, fig. 10 is a flowchart of another driving method of a display panel according to an embodiment of the present invention, and referring to fig. 10, the driving method includes:

s310, in the first detection stage, a detection control signal is output to the first control end, a detection signal is driven to the output of the X-th data line or the Y-th data line, and the states of the X-th data line and the Y-th data line are determined according to a signal fed back by the Y-th data line or the X-th data line.

And S320, in a second detection stage, outputting a detection control signal to a second control end, outputting a driving detection signal to the Y-th data line or the Z-th data line, and determining the states of the Y-th data line and the Z-th data line according to a signal fed back by the Z-th data line or the Y-th data line.

S330, in a third detection stage, outputting a detection control signal to the second control end, outputting a driving detection signal to the X-th data line or the Z-th data line, and determining the states of the X-th data line and the Z-th data line according to a signal fed back by the Z-th data line or the X-th data line.

Specifically, the data lines further include a Z-th data line, where Z =2n +2, n is an integer, that is, the Z-th data line is also an even number of data lines in the display panel. And, the Y-th data line is adjacent to the X-th and Z-th data lines, respectively. Meanwhile, if the Xth data line, the Yth data line and the Z-th data line are in one group, the Z-th data line is multiplexed as the Xth data line in the next group.

Further, the detection unit is additionally provided with a second detection switch group and a third detection switch group on the basis of the first detection switch group, the second detection switch group comprises a plurality of second detection switches, and the third detection switch group comprises a plurality of third detection switches. And, each of the second detection switches is connected to the Y-th data line and the Z-th data line, respectively, and each of the third detection switches 331 is connected to the X-th data line and the Z-th data line, respectively. Meanwhile, the first detection switch, the second detection switch and the third detection switch are all controlled to be switched on or switched off through the driving chip, and the data lines connected with the first detection switch, the second detection switch and the third detection switch are switched on or switched off. The driving chip transmits the detection signal to the driving chip, and the state of the data line is judged based on whether the driving chip acquires the feedback detection signal. The judgment process of the Y-th data line and the Z-th data line based on the second detection switch and the judgment process of the X-th data line and the Z-th data line based on the third detection switch are the same as the judgment process of the first detection switch, and are not described herein in detail. That is, the display panel 10 is provided with a detection unit capable of detecting the states of the X-th data line and the Y-th data line, the states of the Y-th data line and the Z-th data line, and the states of the X-th data line and the Z-th data line. The detection of the data line is more embodied, and the accuracy of data line state judgment is further improved.

For example, taking the short circuit of the data line as an example, the driving chip detects the states of the X-th data line and the Y-th data line through the first detection switch, and if the detection result is a short circuit, there is a case that the X-th data line is short-circuited or the Y-th data line is short-circuited or both the X-th data line and the Y-th data line are short-circuited. The driving chip detects the states of the Y-th data line and the Z-th data line through the second detection switch, if the detection result is that the Y-th data line and the Z-th data line are not in a short circuit state, the Y-th data line and the Z-th data line are proved to be in a non-short circuit state, and the X-th data line is further proved to be in a short circuit state; if the detection result is a short circuit, the situation that the Y-th data line is short-circuited or the Z-th data line is short-circuited or both the Y-th data line and the Z-th data line are short-circuited exists, and meanwhile, the state of the X-th data line cannot be judged. In this case, the driving chip detects the states of the X-th data line and the Z-th data line through the third detection switch, and if the detection result is a non-short circuit, it proves that the X-th data line and the Z-th data line and the Y-th data line are in a short circuit state. The driving chip can gradually acquire the state of the data line through the detection results of different detection switches, and the accuracy of acquiring the state of the data line is improved, namely the accuracy of judging the data line by the display panel is improved.

To sum up, in the driving method of the display panel provided by the embodiment of the present invention, when the detection unit in the display panel includes the first detection switch group, the data line in the display panel is judged, and the states of the two data lines connected to the first detection switch are determined. And then through increasing second detection switch group in detecting element, realize promptly that driver chip is based on under first detection switch's the testing result, through the further judgement of second detection switch to the data line, based on the variety of testing result, can tentatively realize judging the testing result of concrete every data line, promoted the accuracy that display panel judged the data line promptly. Furthermore, a second detection switch group and a third detection switch group are added on the basis of the first detection switch group, namely, corresponding detection results are generated on every two data lines, the driving chip can realize further accurate judgment on each data line on the basis of various detection results, namely, the diversity of the detection results is broken, and the accuracy of the display panel in judging the data lines is further improved.

It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel is characterized by comprising a plurality of data lines, a driving chip and a detection unit;

2. The display panel according to claim 1, wherein the detection unit further comprises a second detection switch group including a plurality of second detection switches;

the data lines further comprise a Z-th data line, wherein Z =2n +2, n is an integer;

the second detection switch comprises a second control end, a second input end and a second output end; the second control end is electrically connected with the driving chip, the second input end is connected with the first end of the Y-th data line, the second output end is electrically connected with the first end of the Z-th data line, and the driving chip is respectively electrically connected with the Y-th data line and the second end of the Z-th data line and is used for detecting the states of the Y-th data line and the Z-th data line.

3. The display panel according to claim 2, wherein the first detection switch and the second detection switch are turned on alternately.

4. The display panel according to claim 2, further comprising a first control signal line and a second control signal line, the first control signal line being electrically connected to the driver chip and the plurality of first control terminals, respectively, and the second control signal line being electrically connected to the driver chip and the plurality of second control terminals, respectively.

5. The display panel according to claim 2, wherein the first detection switch comprises an N-type transistor, and the second detection switch comprises a P-type transistor; or, the first detection switch comprises a P-type transistor, and the second detection switch comprises an N-type transistor;

the display panel further comprises a third control signal line, and the third control signal line is electrically connected with the driving chip, the first control end and the second control end respectively.

6. The display panel according to claim 1, wherein the detection unit further comprises a second detection switch group including a plurality of second detection switches and a third detection switch group including a plurality of third detection switches;

the data lines further comprise a Z-th data line, wherein Z =2n +3, n is an integer;

the second detection switch comprises a second control end, a second input end and a second output end; the second control end is electrically connected with the driving chip, the second input end is connected with the first end of the Y-th data line, the second output end is electrically connected with the first end of the Z-th data line, and the driving chip is respectively electrically connected with the second ends of the Y-th data line and the Z-th data line and is used for detecting the states of the Y-th data line and the Z-th data line;

the third detection switch comprises a third control end, a third input end and a third output end; the third control end is electrically connected with the driving chip, the third input end is connected with the first end of the Xth data line, the third output end is electrically connected with the first end of the Zth data line, and the driving chip is respectively electrically connected with the second ends of the Xth data line and the Zth data line and is used for detecting the states of the Xth data line and the Zth data line.

7. The display panel according to claim 6, wherein the first detection switch, the second detection switch, and the third detection switch are turned on alternately.

8. The display panel according to claim 1, wherein the detection unit is located on a side of the data line away from the driving chip.

9. The display panel according to claim 1, wherein the display panel comprises a display area, the display area comprises a plurality of driving circuits, the driving circuits comprise thin film transistors, and the detecting unit and the thin film transistors are disposed in the same layer.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.

11. A driving method of a display panel, applied to the display panel according to any one of claims 1 to 9, wherein the display panel comprises a detection phase, the detection phase comprising a first detection phase;

the driving method includes:

12. The driving method according to claim 11, wherein in the first detection phase, outputting a detection control signal to the first control terminal, driving a detection signal to the output of the X-th data line or the Y-th data line, and determining the states of the X-th data line and the Y-th data line according to a signal fed back from the Y-th data line or the X-th data line comprises:

outputting a conduction control signal to the first control end to control the first detection switch to be conducted;

outputting a first driving detection signal to the X-th data line or the Y-th data line;

when the first driving detection signal fed back by the Y-th data line or the X-th data line is received, the states of the X-th data line and the Y-th data line are in a conducting state;

when the first driving detection signal fed back by the Y-th data line or the X-th data line is not received, the state of the X-th data line or the Y-th data line is an open circuit state;

when the state of the X-th data line and the Y-th data line is a conducting state, outputting a turn-off control signal to the first control end to control the first detection switch to be turned off;

outputting a second driving detection signal to the X-th data line or the Y-th data line;

when the second driving detection signal fed back by the Y-th data line or the X-th data line is received, the state of the X-th data line and the Y-th data line is a short circuit state;

when the second driving detection signal fed back by the Y-th data line or the X-th data line is not received, the states of the X-th data line and the Y-th data line are in a non-short circuit state.

13. The driving method according to claim 11, wherein the detection unit further includes a second detection switch group including a plurality of second detection switches; the second detection switch comprises a second control end, a second input end and a second output end; the data lines further comprise a Z-th data line;

the detection phase further comprises a second detection phase;

the driving method further includes:

and in the second detection stage, outputting a detection control signal to the second control end, outputting a driving detection signal to the Y-th data line or the Z-th data line, and determining the states of the Y-th data line and the Z-th data line according to a signal fed back by the Z-th data line or the Y-th data line.

14. The driving method according to claim 11, wherein the detection unit further includes a second detection switch group including a plurality of second detection switches and a third detection switch group including a plurality of third detection switches; the second detection switch comprises a second control end, a second input end and a second output end, and the third detection switch comprises a third control end, a third input end and a third output end; the data lines further comprise a Z-th data line;

the detection stage further comprises a second detection stage and a third detection stage;

the driving method further includes:

in the second detection stage, outputting a detection control signal to the second control end, outputting a driving detection signal to the output of the Y-th data line or the Z-th data line, and determining the states of the Y-th data line and the Z-th data line according to a signal fed back by the Z-th data line or the Y-th data line;

in the third detection stage, a detection control signal is output to the second control end, a detection signal is driven to be output to the xth data line or the xth data line, and the states of the xth data line and the xth data line are determined according to a signal fed back by the xth data line or the xth data line.

15. The driving method according to claim 11, wherein the display panel includes a display phase including a display signal writing phase and a display holding phase, and the detection phase is multiplexed in timing with the display holding phase.