CN111429849B

CN111429849B - Display panel, display device, detection device and hole periphery crack detection method

Info

Publication number: CN111429849B
Application number: CN202010359338.1A
Authority: CN
Inventors: 于鹏飞
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-08-10
Anticipated expiration: 2040-04-29
Also published as: CN111429849A

Abstract

The application provides a display panel, a display device, a detection device and a hole periphery crack detection method, relates to the technical field of display, and is used for solving the problem of hole periphery crack detection of the display panel. A hole is formed in a display area of the display panel, a first grid driving circuit is arranged on one side of the peripheral area, a second grid driving circuit is arranged on the other side of the peripheral area, the first grid driving circuit comprises a plurality of first shifting registers which are sequentially cascaded, the second grid driving circuit comprises a plurality of second shifting registers which are sequentially cascaded, and each first shifting register and each second shifting register comprise an input end and an output end; the output end of the Nth first shift register is connected with the output end of the Nth second shift register through the detection line surrounding the hole; the signal of the output end of the Nth first shift register is used for representing whether the detection line is broken or not, and N is more than or equal to 1; the output end of the ith first shift register is disconnected with the output end of the ith second shift register; wherein i is less than or equal to N-1.

Description

Display panel, display device, detection device and hole periphery crack detection method

Technical Field

The invention relates to the technical field of display, in particular to a display panel, a display device, a detection device and a hole periphery crack detection method.

Background

With the development of optical technology and semiconductor technology, display devices represented by Organic Light Emitting Diode (OLED) display screens have the advantages of being light and thin, low in power consumption, large in viewing angle and the like, and are widely applied to the field of display technology.

Currently, display devices with high screen ratios (e.g., full-screen electronic devices) are becoming a product that is highly appreciated by consumers. The display panel is characterized in that a large number of full-screen electronic devices adopt the design of the camera under the screen, the camera is arranged in the display area of the display panel, the display area is required to be punched in the manufacturing process of the display panel, cracks are possibly generated around the holes due to heat influence or mechanical impact, the cracks can influence the normal display of the display panel, the cracks around the holes need to be detected, the display panel with the cracks is distinguished in advance, the problem that the display panel continues to perform subsequent manufacturing processes to waste materials is avoided, or the display panel flows into a consumer market, and poor display caused by crack expansion occurs in the using process of consumers.

The detection means in the related art needs to lead out at least one signal dedicated for detection from the detection end, and an electrical structure connected with the signal is arranged around the position where the crack is high, but the periphery of the hole is surrounded by pixels, and leading out the detection signal into the hole inevitably causes the signal to pass through a pixel area around the hole, while the requirement of the pixel array on consistency is extremely strict, and the leading-in of the signal can cause the pixel around the position where the signal passes to be inconsistent with other pixels, thereby causing the problem of display unevenness.

Disclosure of Invention

Embodiments of the present invention provide a display panel, a display device, a detection device, and a hole crack detection method, which are used for solving the problem of hole crack detection in the display panel without affecting the display effect.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, a display panel is provided, where the display panel has a display area and a peripheral area located at the periphery of the display area, a hole is provided in the display area, a first gate driving circuit is provided at one side of the peripheral area, a second gate driving circuit is provided at the other side of the peripheral area, the first gate driving circuit includes a plurality of sequentially cascaded first shift registers, the second gate driving circuit includes a plurality of sequentially cascaded second shift registers, and each of the first shift registers and the second shift registers includes an input end and an output end; the output end of the Nth first shift register in the plurality of first shift registers is connected with the output end of the Nth second shift register in the plurality of second shift registers through the detection lines surrounding the holes; the signal of the output end of the Nth first shift register is used for representing whether the detection line is broken or not, and N is more than or equal to 1; in the case that N > 1, the output terminal of the ith first shift register in the plurality of first shift registers is disconnected from the output terminal of the ith second shift register in the plurality of second shift registers; wherein i is less than or equal to N-1.

Alternatively, the output terminals of the consecutive plurality of first shift registers from the (N + 1) th first shift register are disconnected from the output terminals of the consecutive plurality of second shift registers from the (N + 1) th second shift register, respectively.

Optionally, the output terminal of the jth first shift register in the plurality of first shift registers is disconnected from the output terminal of the jth second shift register in the plurality of second shift registers; wherein j is more than or equal to N + 1.

Optionally, an output terminal of the nth first shift register is connected to the signal detection terminal.

Optionally, an output terminal of a last first shift register in the plurality of first shift registers is connected to the signal detection terminal.

Optionally, the gate driving circuit is a scanning gate driving circuit or a light emitting control gate driving circuit.

In a second aspect, a display device is provided, which includes the display panel of the first aspect.

Optionally, the display device further comprises a detection circuit, in case of detecting whether there is a crack around the hole, the detection circuit is configured to: providing a first input signal to an input terminal of a first one of the first shift registers capable of causing a subpixel connected to the first one of the first shift registers to emit light, and providing a second input signal to an input terminal of a first one of the second shift registers capable of causing a subpixel connected to the first one of the second shift registers to not emit light; wherein the second input signal is capable of overlaying the first input signal.

Optionally, each of the first shift registers further includes a first voltage terminal, and each of the second shift registers further includes a second voltage terminal; the voltage in the first input signal is provided by the first voltage terminal, and the voltage in the second input signal is provided by the second voltage terminal; the plurality of first shift registers are connected with the first voltage end, and the plurality of second shift registers are connected with the second voltage end; the first voltage terminal includes a low voltage terminal and/or a high voltage terminal, and the second voltage terminal includes a low voltage terminal and/or a high voltage terminal.

Optionally, the detection circuit includes a third voltage terminal and a fourth voltage terminal, and the third voltage terminal is connected to the fourth voltage terminal; the third voltage end provides voltage to the first voltage end of the first shift register through a resistor, and the fourth voltage end provides voltage to the second voltage end of the second shift register; wherein the resistance value of the resistor is greater than or equal to one hundred ohms.

Optionally, the first input signal is a constant signal; and/or the second input signal is a constant signal.

Optionally, the detection circuit further comprises a detection sub-circuit configured to: and determining whether cracks exist around the hole or not by detecting the signal of the signal detection end.

In a third aspect, there is provided a detection apparatus configured to detect whether there is a crack around a hole in a display panel; the display panel is provided with a display area and a peripheral area located at the periphery of the display area, the display area is internally provided with the holes, one side of the peripheral area is provided with a first grid driving circuit, the other side of the peripheral area is provided with a second grid driving circuit, the first grid driving circuit comprises a plurality of first shift registers which are sequentially cascaded, the second grid driving circuit comprises a plurality of second shift registers which are sequentially cascaded, and each first shift register and each second shift register comprise an input end and an output end; in the case of detecting whether there is a crack around a hole of a display area of a display panel, the detection device is configured to: providing a first input signal to an input terminal of a first one of the first shift registers capable of causing a subpixel connected to the first one of the first shift registers to emit light, and providing a second input signal to an input terminal of a first one of the second shift registers capable of causing a subpixel connected to the first one of the second shift registers to not emit light; wherein the second input signal is capable of overlaying the first input signal.

Optionally, the detection device includes a third voltage terminal and a fourth voltage terminal, and the third voltage terminal is connected to the fourth voltage terminal; the third voltage end provides voltage to the first voltage end of the first shift register through a resistor, and the fourth voltage end provides voltage to the second voltage end of the second shift register; wherein the voltage in the first input signal is provided by the first voltage terminal and the voltage in the second input signal is provided by the second voltage terminal; the plurality of first shift registers are connected with the first voltage end, and the plurality of second shift registers are connected with the second voltage end; the first voltage end comprises a low voltage end and/or a high voltage end, and the second voltage end comprises a low voltage end and/or a high voltage end; the resistance value of the resistor is greater than or equal to one hundred ohms.

In a fourth aspect, a hole is disposed in a display area of a display panel, where the display panel has the display area and a peripheral area located at the periphery of the display area, one side of the peripheral area is provided with a first gate driving circuit, the other side of the peripheral area is provided with a second gate driving circuit, the first gate driving circuit includes a plurality of sequentially cascaded first shift registers, the second gate driving circuit includes a plurality of sequentially cascaded second shift registers, and each of the first shift registers and the second shift registers includes an input end and an output end; the method comprises the following steps: providing a first input signal to an input of a first one of said first shift registers capable of causing a first one of said first shift register connected sub-pixels to emit light; providing a second input signal to an input of a first one of said second shift registers capable of rendering a subpixel connected to the first one of said second shift registers non-emissive; wherein the second input signal is capable of overlaying the first input signal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an OLED display device provided in the related art;

fig. 2 is a schematic structural diagram of a display panel provided in the related art;

fig. 3 is a circuit structure diagram of a display panel provided in the related art;

fig. 4 is a circuit configuration diagram of a pixel driving circuit provided in the related art;

FIG. 5 is a timing diagram illustrating the operation of the pixel driving circuit shown in FIG. 4;

fig. 6 is a circuit configuration diagram of a light emission control shift register provided in the related art;

FIG. 7 is a timing diagram illustrating the operation of the emission control shift register shown in FIG. 6;

fig. 8a is a schematic circuit diagram of a display panel according to an embodiment of the present disclosure;

fig. 8b is a schematic circuit diagram of another display panel according to an embodiment of the present disclosure;

fig. 9a is a schematic view of a display screen of a display panel according to an embodiment of the present disclosure;

fig. 9b is a schematic view of a display screen of another display panel according to an embodiment of the present disclosure;

fig. 9c is a schematic view of a display screen of another display panel according to an embodiment of the present disclosure;

fig. 9d is a schematic view of a display screen of another display panel according to an embodiment of the present disclosure;

fig. 10 is a schematic circuit diagram of a display device according to an embodiment of the present disclosure;

fig. 11 is a schematic circuit structure diagram of a detection apparatus according to an embodiment of the present disclosure;

fig. 12 is a flowchart of a method for detecting cracks around a hole according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

With the development of display technology, OLED display technology has been widely applied to various display devices. As shown in fig. 1, the main structure of the OLED display device 100 includes a display panel 10, a middle frame 20 for carrying the display panel 10, and a case 30 for fixing and protecting the display panel 10 and the middle frame 20.

The structure of the display panel 10 is schematically shown in fig. 2, and may include a substrate 110, an anode 111, a hole transport layer 112, an organic light emitting layer 113, an electron transport layer 114, a cathode 115, and an encapsulation layer 116, which are sequentially disposed.

The anode 111, the hole transport layer 112, the organic light emitting layer 113, the electron transport layer 114, and the cathode 115 are sequentially stacked on the substrate 110. For example, the substrate 110 may be a glass substrate.

When a voltage is applied to the anode 111 and the cathode 115, electrons in the cathode 115 move to the organic light emitting layer 113 through the electron transport layer 114 under the action of the voltage, holes in the anode 111 move to the organic light emitting layer 113 through the hole transport layer 112 under the action of the voltage, and the electrons and the holes are combined in the organic light emitting layer 113 to emit light, so that self-luminescence is realized.

In addition, when the types of organic molecular materials in the organic light emitting layer 113 are different, the color of emitted light is also different. In this case, at least three OLED devices for emitting light of three primary colors, for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel, may be disposed in one pixel unit of the display device. In addition, by adjusting the voltages applied to the anode 111 and the cathode 115 of the OLED device at different positions in the display panel, the light emitting intensity of the OLED device can be changed, thereby realizing the display of a color picture.

The packaging layer 116 can be used for ensuring good sealing performance inside the OLED device, reducing contact between the OLED device and oxygen, water vapor and the like in the external environment, keeping stable performance of the OLED device and prolonging the service life of the OLED device.

For example, the substrate 110 and the encapsulation layer 116 may be sealed by an encapsulation adhesive.

Fig. 3 exemplarily shows a circuit structure of a display panel in the related art. Referring to fig. 3, the display panel 10 includes a display area a and a peripheral area B located at the periphery of the display area a.

Wherein, a plurality of sub-pixels 300 are disposed in the display area a. For example, referring to fig. 3, a plurality of sub-pixels 300 may be presented in an array distribution. A pixel driving circuit 20 is provided in each sub-pixel 300. The pixel driving circuit 20 includes a plurality of driving signals.

Gate Driver on Array (GOA) circuits, which are referred to as Gate Driver circuits for short, may be disposed on two sides of the peripheral region B. As shown in fig. 3, the gate driving circuit (GOA) may include a scan gate driving circuit 21(scan GOA) and a light emission control gate driving circuit 22(EM GOA).

As shown in fig. 3, the scan gate driving circuit 21 may include a plurality of scan shift registers 201 cascaded in sequence. Each scanning shift register 201 is connected to the pixel driving circuits 20 in two adjacent rows of the sub-pixels 300, and the pixel driving circuit 20 in each row of the sub-pixels 300 is connected to two adjacent scanning shift registers 201, so as to provide a first scanning signal to the pixel driving circuits 20 in the row of the sub-pixels 300 through a first scanning shift register 201 in the two adjacent scanning shift registers 201, and provide a second scanning signal to the pixel driving circuits 20 in the row of the sub-pixels 300 through a second scanning shift register 201 in the two adjacent scanning shift registers 201. For example, the first scan signal may be denoted as Gate (n-1), and the second scan signal may be denoted as Gate (n). Where n is a positive integer, and is used to indicate any one of the sequentially cascaded scan shift registers 201.

The light emission control gate driving circuit 22 may include a plurality of light emission control shift registers 202 that are sequentially cascaded. Each emission control shift register 202 may be connected to the pixel driving circuits 20 in two adjacent rows of the sub-pixels 300 to supply the emission control signals EM to the pixel driving circuits 20 in the two rows of the sub-pixels 300, and the pixel driving circuits 20 in each row of the sub-pixels 300 are connected to one emission control shift register 202.

Here, if the pixel driving circuits 20 in each row of sub-pixels 300 are driven by the shift registers on both sides (i.e., the scan shift register 201 or the emission control shift register 202), that is, the output terminals of the shift registers on both sides of the same row are connected to each other, this state is called "double-edge driving". If the outputs of the two shift registers are not connected (i.e., disconnected), it is called "single-side driving". In the one-side driving state, any one pixel in the row receives a signal from only one shift register.

In addition, as shown in fig. 3, the pixel driving circuit 20 in each column of sub-pixels 300 may be connected to one Data signal line DL for supplying the Data signal Data to the column of sub-pixels 300.

The first scanning signal Gate (n-1), the second scanning signal Gate (n), the emission control signal EM, and the Data signal Data are driving signals of the pixel driving circuit 20.

For convenience of description, fig. 3 only shows some signal lines and their corresponding driving signals in the circuit configuration of the display panel, and omits dc signal lines and their related other dc signals. For example, the dc driving signals of the pixel driving circuit 20 may include a power supply voltage signal VDD, a reference voltage signal VSS, an initialization voltage signal Vinit, and the like.

In the related art, the pixel driving circuit 300 may have various types of circuit structures. Illustratively, the pixel driving circuit 300 may be a 7T1C pixel driving circuit shown in fig. 4 and including 7 switching tubes (i.e., switching tube T1-switching tube T7) and one storage capacitor C. The switch tube T1-the switch tube T7 may be a triode, a thin film transistor or a field effect transistor. The switching transistor T3 is also referred to as a driving transistor.

In addition, as shown in fig. 4, the 7T1C pixel driving circuit may further include a capacitor C _ Data, which may be used to filter out an alternating current component in the Data signal Data.

Referring to fig. 5, the operation timing of the 7T1C pixel driving circuit shown in fig. 4 can be roughly divided into three stages:

the first stage is as follows: the first scan signal Gate (n-1) inputs a turn-on signal to turn on the switching transistor T1 and the switching transistor T7, so that the initialization voltage signal Vinit is written through the turned-on switching transistor T1 to initialize the Gate of the driving transistor (i.e., the switching transistor T3). The potential of the anode of the OLED device is reset by the initialization voltage signal Vinit through the turned-on switching tube T7.

And a second stage: the second scan signal gate (n) inputs the turn-on signal, and the switch tube T2 and the switch tube T4 are turned on. The turned-on switch T2 and the turned-on switch T3 form a diode structure, and the Data signal Data is written into the N2 node through the turned-on switch T4. The node N1 is charged to Vdata + Vth by the voltage of the Data signal Data, where Vth is the threshold voltage of T3.

And a third stage: the light-emitting control signal EM inputs an opening signal, and the switch tube T5 and the switch tube T6 are conducted. At this time, the potential of the node N2 is the potential of the first voltage terminal VDD; the driving current flows to the OLED device through the turned-on switching tube T6, and the OLED device is driven to emit light. The third stage may also be referred to as a light-emitting stage.

Fig. 4 and 5 show the 7T1C pixel driving circuit and its operation timing by taking the example where the switch transistor T1-the switch transistor T7 are both low-level conducting switch transistors. It is understood that the switch tube T1-the switch tube T7 may also be a switch tube conducting at a high level, and the embodiment of the present application does not limit the conducting types of the switch tube T1-the switch tube T7.

In addition, for exemplary purposes, the present application describes a structure of a pixel driving circuit in the related art by taking a 7T1C pixel driving circuit as an example. However, the application range of the embodiment of the present application is not limited to the 7T1C pixel driving circuit, and other types of pixel driving circuits that need to be driven by the driving signals of the scanning gate driving circuit 21 and/or the light-emitting control gate driving circuit 22 shown in fig. 3 should also be covered within the scope of the present application.

Next, a circuit configuration of a shift register in the gate driver circuit will be specifically described.

The scan shift register 201 and the light emission control shift register 202 may have similar circuit structures, and the main functions of the two shift registers are to output the input signals in a delayed manner under the control of two clock signals coupled to each other. Wherein, the two mutually coupled clock signals mean that the two clock signals have completely opposite waveforms; i.e. a high level of one clock signal corresponds to a low level of the other clock signal, and the sum of the levels of the two signal waveforms is zero at any point in time. Next, a circuit configuration of the shift register will be described by taking the light emission control shift register 202 as an example.

Exemplarily, fig. 6 shows a circuit configuration of the light emission control shift register 202, and fig. 7 shows an operation timing of the light emission control shift register 202 shown in fig. 6. With reference to fig. 6 and 7, under the control of the two coupled clock signals ECK and ECB, the input signal STV is delayed by a time period T and then output, resulting in the output signal Eout-1. The output signal Eout-1 is the emission control signal EM of the emission control shift register 202. In addition, since the plurality of light emission control shift registers 202 are cascade-connected and the output signal Eout-1 is used as an input signal of the next light emission control shift register 202, the output signal Eout-2 of the next light emission control shift register 202 is output after being delayed for a time period T on the basis of the output signal Eout-1.

Referring to fig. 6, the high voltage of the output signal Eout is derived from the vgh (vghs) signal when the switch transistor T9 is turned on, and the low voltage of the output signal Eout is derived from the vgl (vgls) signal when the switch transistor T10 is turned on.

The time period T may be a time for scanning a row of sub-pixels, and is denoted as H. Alternatively, the time period T may also be 2H. Of course, the time period T may have other values, and the specific value of the time period T is not limited in this embodiment.

The structure of the display panel and the related circuit in the related art are described above. With the diversification of the functions of the display device, in order to improve the screen ratio, a hole may be formed in the display area of the display panel to provide the under-screen camera, and cracks may be generated around the hole due to thermal influence or mechanical impact, and the cracks may affect the normal display of the display panel, so that the cracks around the hole need to be detected. However, the detection means in the related art needs to introduce a detection signal into the hole through the pixel region around the hole, and such signal introduction may cause the pixel around the position where the detection signal passes to be inconsistent with other pixels, causing problems such as display unevenness.

Based on this, the present embodiment provides an improved display panel 10, and referring to fig. 8a, the display panel 10 includes a display area a and a peripheral area B located at the periphery of the display area a.

The display area A is internally provided with a hole H, one side of the peripheral area B is provided with a first gate driving circuit 31, the other side of the peripheral area B is provided with a second gate driving circuit 32, the first gate driving circuit 31 comprises a plurality of first shifting registers 301 which are sequentially cascaded, the second gate driving circuit 32 comprises a plurality of second shifting registers 302 which are sequentially cascaded, and each first shifting register 301 and each second shifting register 302 comprise an input end 311 and an output end 313.

The first gate driving circuit 31 and the second gate driving circuit 32 may be the scanning gate driving circuit 21 or the light emission control gate driving circuit 22 shown in fig. 3. Accordingly, the first shift register 301 and the second shift register 302 may be the scan shift register 201 or the light emission control shift register 202 shown in fig. 3.

As described above, the scanning shift register 201 and the emission control shift register 202 may have similar circuit structures (for example, the circuit structure shown in fig. 6), and therefore, with reference to fig. 6, the following description will be given taking as an example that the first gate driver circuit 31 and the second gate driver circuit 32 are the emission control gate driver circuit 22 shown in fig. 3, and the second shift register 302 and the first shift register 301 are the emission control shift register 202 shown in fig. 3.

Illustratively, the signal at the input terminal 311 of each of the first shift register 301 and the second shift register 302 may be the input signal STV shown in fig. 6, and the signal at the output terminal 313 may be the output signal Eout shown in fig. 6.

The output terminal 313 of the nth first shift register among the plurality of first shift registers 301 is connected to the output terminal 313 of the nth second shift register among the plurality of second shift registers 302 through the detection lines L surrounding the hole H. The signal of the output end 313 of the Nth first shift register is used for representing whether the detection line is broken or not, and N is larger than or equal to 1.

Illustratively, the signal at the output terminal 313 of the nth first shift register 301 may be used to drive at least one row of subpixels in the subpixel row occupied by the hole H.

That is, the nth first shift register 301 is closer to the hole H, and at least one row of sub-pixels among the sub-pixels connected to the nth first shift register 301 is in the sub-pixel row occupied by the hole H.

Illustratively, the signal at the output 313 of the nth second shift register 302 may also be used to drive at least one row of subpixels in the subpixel row occupied by the hole H.

That is, the nth second shift register 302 is closer to the hole H, and at least one row of sub-pixels among the sub-pixels connected to the nth second shift register 302 is in the sub-pixel row occupied by the hole H.

Further, the signal of the output terminal 313 of the nth first shift register 301 may be used to drive at least one row of sub-pixels in the sub-pixel row closest to the center of the hole H.

That is, the nth first shift register 301 may be the first shift register 301 closest to the center of the hole H.

Further, the signal of the output terminal 313 of the nth second shift register 302 may be used to drive at least one row of sub-pixels in the sub-pixel row closest to the center of the hole H.

That is, the nth second shift register 302 may be the second shift register 302 closest to the center of the hole H.

In the case where N > 1, the output 313 of the ith first shift register of the plurality of first shift registers 301 is disconnected from the output 313 of the ith second shift register of the plurality of second shift registers 302; wherein i is less than or equal to N-1.

That is, in the display panel 10, the output terminal 313 of the nth first shift register 301 is connected to the output terminal 313 of the nth second shift register 302 through the detection line L surrounding the hole H. Two nth shift registers (i.e., an nth first shift register 301 and an nth second shift register 302) located at two sides of the peripheral region are connected, and the nth shift register is driven in a bilateral mode; the two shift registers in either pole (if present) before the nth pole on either side of the periphery are turned off, and both before the nth poles are single-side driven.

According to the configuration of the display panel 10, when detecting whether or not there is a crack around the hole H, a first input signal capable of causing the sub-pixel connected to the first shift register 301 to emit light is input to the input terminal 311 of the first shift register 301, and a second input signal capable of causing the sub-pixel connected to the first second shift register 302 to emit no light is input to the input terminal 311 of the first second shift register 302. Wherein the second input signal is capable of overlaying the first input signal.

The fact that the second input signal is able to cover the first input signal means that the second input signal may mask the first input signal due to possible signal strength differences when the second input signal is in direct communication with the first input signal. That is, when the second input signal is in direct communication with the first input signal, what is detected at the port of the first input signal is not the first input signal, but the second input signal.

Therefore, if the inspection line L surrounding the hole H is broken (i.e., cracks may occur around the hole), the nth pole becomes one-side driven. At this time, the first input signal supplied to the input terminal 311 of the first shift register 301 causes the sub-pixels connected to the first shift register 301 to emit light, and the sub-pixels connected to the first shift registers 301 up to the nth electrode are all caused to emit light by the plurality of sequentially cascaded first shift registers 301, that is, a bright screen (indicated by white areas in fig. 9 a) appears.

The second input signal supplied to the input terminal 311 of the first second shift register 302 makes the sub-pixels connected to the first second shift register 302 not emit light, and makes none of the sub-pixels connected to the plurality of second shift registers 302 emit light through the plurality of sequentially cascaded second shift registers 302, as shown in fig. 9a, so that the display area on the side where the plurality of second shift registers 302 are located appears as a dark picture (indicated by black areas in fig. 9 a).

In the above case, whether or not the sub-pixels connected to the first shift register 301 after the N-th electrode emit light depends on whether the N-th electrode is driven one-sided or two-sided. If the double-edge driving is performed after the nth pole, because the second input signal can cover the first input signal, under the action of the plurality of sequentially cascaded first shift registers 301 and the plurality of sequentially cascaded second shift registers 302, the output signal of the output terminal 313 of the first shift register 301 after the nth pole on the side where the first shift register 301 is located is covered by the output signal of the output terminal 313 of the second shift register 302 after the nth pole, so that, as shown in fig. 9a, the sub-pixels corresponding to the first shift register 301 after the nth pole do not emit light, and a dark picture is presented.

If the sensing line L surrounding the hole H is not broken (i.e., there may be no cracks around the hole), the Nth pole remains double-sided driven. At this time, the first input signal supplied to the input terminal 311 of the first shift register 301 causes the sub-pixels connected to the first shift register 301 to emit light, and the sub-pixels connected to the first shift register 301 before the nth first shift register 301 are all caused to emit light by the plurality of sequentially cascaded first shift registers 301. The nth stage is a dual-side drive, and the second input signal can override the first input signal, so that the output signal at the output 313 of the nth first shift register 301 is overridden by the output signal at the output 313 of the nth second shift register 302. Therefore, none of the sub-pixels corresponding to the N-th-pole first shift register 301 emit light, and a dark picture appears. Due to the cascade effect, the sub-pixels corresponding to the first shift register 301 at the side where the first shift register 301 is located from the N-th pole do not emit light. That is, referring to fig. 9b, the sub-pixel corresponding to the first shift register 301 located before the nth electrode on the side of the first shift register 301 emits light, so that a bright image is displayed, and from the nth electrode, the sub-pixel corresponding to the first shift register 301 does not emit light, so that a dark image is displayed. In addition, the second shift register 301 does not emit light at the side where the second shift register is located, and a dark picture is displayed.

As can be seen from a comparison between fig. 9a and 9b, when the detection lines L surrounding the hole H are disconnected during the bilateral driving after the N-th pole, the sub-pixels corresponding to the first shift register 301 of the preceding N-th pole (including the N-th pole) all emit light, thereby displaying a bright image, and the sub-pixels corresponding to the first shift register 301 of the following N-th pole do not emit light, thereby displaying a dark image. When the detection line L surrounding the hole H is not disconnected when the N-th electrode is followed by the double-edge drive, the sub-pixels corresponding to the first shift register 301 before the N-th electrode (excluding the N-th electrode) all emit light, and a bright picture is displayed, and the sub-pixels corresponding to the first shift register 301 from the N-th electrode do not emit light, and a dark picture is displayed. That is, when the nth electrode is followed by the double-edge driving, whether or not the detection line L surrounding the hole H cuts off the sub-pixel corresponding to the nth electrode first shift register 301 appearing on the display screen is distinguished as whether or not the sub-pixel emits light.

In order to more clearly present the difference on the display screen, Data signals Data which can make the pixels composed of the sub-pixels emit colored light (e.g., red light, green light, etc.) with an obvious color recognition degree can be input to the sub-pixels corresponding to the N-th-pole first shift register 301. Therefore, whether the sub-pixel corresponding to the N-th-pole first shift register 301 emits light can be more clearly distinguished on the display screen, and accordingly, whether the detection line L surrounding the hole H is disconnected can be determined.

As can be seen from the above, whether the detection lines L surrounding the holes H are disconnected or not can be directly reflected on the screen of the display area, that is, by providing appropriate signals to the gate driving circuit in the display panel provided in the embodiment of the present application, whether the detection lines L surrounding the holes H are disconnected or not can be determined according to the screen displayed by the display area, so as to determine whether cracks occur around the holes in the display area or not.

In addition, when the display panel works normally, a third input signal for displaying can be provided to both the input end of the first shift register and the input end of the first second shift register, so that the display panel can display normally.

The detection line L in the display panel provided by the embodiment of the application is mainly used for detecting cracks around the hole, and when the detection line L is in normal display, the normal display of the display panel cannot be influenced even if the detection line L is disconnected. That is to say, the display panel provided by the embodiment of the application separates the crack detection function from the normal display function, and does not affect each other, so that the crack detection around the hole can be realized under the condition of ensuring the normal display of the display panel.

If it is intact (i.e. not disconnected) to detect detection line L before leaving the factory, nevertheless because of slight clash with, arouse that detection line L fracture also can not appear scrapping because of the screen that can't show arousing in the user use, the above-mentioned display panel that this application embodiment provided can reduce the scrapping risk of client screen with the design that these two kinds of function of crack detection and normal demonstration are distinguished.

In order to further improve the difference of whether the detection lines L surrounding the hole H are disconnected on the screen of the display area, in some implementations, the output terminals of the consecutive first shift registers from the (N + 1) th first shift register are disconnected from the output terminals of the consecutive second shift registers from the (N + 1) th second shift register, respectively.

That is, the stages after the nth pole are single-side driven. At this time, if the detection line L surrounding the hole H is disconnected, the plurality of stages after the N-th pole are driven in a single-side manner, and therefore, the output signal of the output terminal 313 of the second shift register 302 cannot overlap the output signal of the output terminal 313 of the first shift register 301 in the plurality of stages after the N-th pole. Accordingly, as shown in fig. 9c, the sub-pixels corresponding to the first shift registers 301 of the plurality of stages subsequent to the N-th stage emit light, and a bright screen appears. At this time, if the detection line L surrounding the hole H is not broken, the output signal of the output terminal 313 of the nth second shift register 302 will cover the output signal of the output terminal 313 of the nth first shift register 301, the sub-pixels connected to the nth first shift register 301 do not emit light, a dark picture is presented, and all the sub-pixels connected to the first shift register 301 after the nth pole do not emit light by cascade connection, a dark picture is presented, so that the display picture is still as shown in fig. 9 b.

In order to further improve the difference of whether the detection lines L surrounding the hole H are disconnected on the screen of the display area, in some implementations, the output terminal of the jth first shift register in the plurality of first shift registers is disconnected from the output terminal of the jth second shift register in the plurality of second shift registers; wherein j is more than or equal to N + 1.

That is, all stages after the nth pole are single-side driven. At this time, if the detection line L around the hole H is disconnected, the output signal of the output terminal 313 of the second shift register 302 cannot overlap the output signal of the output terminal 313 of the first shift register 301 in all the stages after the N-th pole. Accordingly, as shown in fig. 9d, the sub-pixels corresponding to the first shift registers 301 of all stages after the N-th electrode emit light, and a bright screen appears. At this time, if the detection line L surrounding the hole H is not broken, the display screen remains as shown in fig. 9 b.

In some implementations, as shown in fig. 8a, the output terminal 313 of the nth first shift register 301 may be connected to the signal detection terminal 320.

If the detection line L surrounding the hole H is disconnected, the signal at the output terminal of the nth first shift register 301 may cause the connected sub-pixels to emit light; if the detection line L surrounding the hole H is not disconnected, the signal at the output terminal of the nth first shift register 301 cannot make the connected sub-pixels emit light. Therefore, the output terminal of the nth first shift register 301 can be led to a signal detection terminal 320, and by detecting the signal of the signal detection terminal 320, it can be determined whether the sub-pixel connected thereto can emit light, i.e., whether the detection line L surrounding the hole H is disconnected.

Alternatively, when the plurality of stages subsequent to the N-th stage are driven in one-sided manner, the output terminal of the first shift register 301 in any of the subsequent plurality of stages may be connected to the signal detection terminal 320 for detection.

For example, referring to fig. 8b, when all the stages after the nth stage are single-side driven, the output terminal of the last first shift register 301 in the plurality of first shift registers may be connected to the signal detection terminal 320.

That is, when all the stages after the nth stage are driven by one side, the output terminal of the last first shift register 301 in the plurality of first shift registers may be led to one signal detection terminal 320, and by detecting the signal of the signal detection terminal 320, it is determined whether the sub-pixel connected thereto can emit light, that is, whether the detection line L surrounding the hole H is disconnected.

The embodiment of the present application also provides a display device, as shown in fig. 10, the display device 100 may include the display panel 10. In addition, the display device 100 may further include a detection circuit 1001.

In the case of detecting whether there is a crack around a hole, the detection circuit 1001 may be configured to: supplying a first input signal STV-1 capable of making the sub-pixel connected to the first shift register 301 emit light to the input terminal 311 of the first shift register 301, and supplying a second input signal STV-2 capable of making the sub-pixel connected to the first second shift register 302 not emit light to the input terminal 311 of the first second shift register 302; wherein the second input signal STV-2 can overlap the first input signal STV-1.

Referring to the foregoing, in the case of detecting whether there is a crack around a hole, the detection circuit 1001 may make: if the detection lines L surrounding the holes H are disconnected, the display screen of the display panel may show the display screens shown in fig. 9a, 9c, and 9d, depending on the specific structure of the display panel. If the detection lines L surrounding the holes H are not broken, the display screen of the display panel may show the display screen shown in fig. 9 b. Therefore, whether the detection line L surrounding the hole H is disconnected or not is directly reflected on the screen of the display area.

That is, with the detection circuit 1001 in the display device provided in the embodiment of the present application, the above-described signal can be supplied to the gate driving circuit in the above-described display panel, so that whether the detection line L surrounding the hole H is disconnected can be determined according to the picture presented by the display area, thereby determining whether cracks occur around the hole in the display area.

In some implementations, the first input signal STV-1 may be a constant signal.

In other implementations, the second input signal STV-2 may also be a constant signal.

Here, the constant signal refers to a continuous signal whose level does not change with time.

For example, when the pixel driving circuit in the sub-pixel in the display panel is a low-level on circuit, the first input signal STV-1 may be a constant low signal. The second input signal STV-2 may be a constant high signal.

That is, the first input signal STV-1 may be a constant signal capable of emitting light to the sub-pixel connected to the first shift register 301, and the second input signal STV-2 may be a constant signal capable of emitting light to the sub-pixel connected to the first second shift register 302. A constant signal has a simpler waveform and is easier to generate than a signal whose level varies with time.

In some implementations, each first shift register 301 further includes a first voltage terminal 314, and each second shift register 302 further includes a second voltage terminal 315. The voltage V1 in the first input signal STV-1 is provided by the first voltage terminal 314, and the voltage V2 in the second input signal STV-2 is provided by the second voltage terminal 315.

The plurality of first shift registers 301 are connected to a first voltage terminal 314, and the plurality of second shift registers 302 are connected to a second voltage terminal 315. The first voltage terminal 314 includes a low voltage terminal and/or a high voltage terminal, and the second voltage terminal 315 includes a low voltage terminal and/or a high voltage terminal. For example, referring to fig. 6, the first voltage terminal 314 may include a low voltage terminal vgl (vgls) and/or a high voltage terminal vgh (vghs).

That is, the plurality of first shift registers 301 are connected to the same first voltage terminal 314, the plurality of second shift registers 302 are connected to the same second voltage terminal 315, and the first voltage terminal 314 is used for providing the voltage V1 of the first input signal STV-1, and the second voltage terminal 315 is used for providing the voltage V2 of the second input signal STV-2. Accordingly, the voltage V1 in the first input signal STV-1 and the voltage V2 in the second input signal STV-2 can be adjusted by controlling the voltages of the first voltage terminal 314 and the second voltage terminal 315, respectively.

It should be noted that, since the first voltage terminal 314 and the second voltage terminal 315 may include both a low voltage terminal and a high voltage terminal, the voltage V1 in the first input signal STV-1 and the voltage V2 in the second input signal STV-2 may also include both a low voltage and a high voltage. That is, the voltage V1 and the voltage V2 may not represent only a high voltage or a low voltage, the voltage V1 may represent both a low voltage and a high voltage present in the first input signal STV-1, and the voltage V2 may represent both a low voltage and a high voltage present in the second input signal STV-2. For convenience of description, the voltage V1 and the voltage V2 are exemplified as high voltage or low voltage.

For example, when the pixel driving circuit in the sub-pixel in the display panel is a low-level on circuit, the first input signal STV-1 may be a constant low signal. The second input signal STV-2 may be a constant high signal. At this time, the voltage V1 is low, and the voltage V2 is high. For example, the voltage V1 may be a voltage signal of the low voltage terminal VGLS shown in fig. 6, and the voltage V2 may be a voltage signal of the high voltage terminal VGH shown in fig. 6. If the detection line L surrounding the hole H is not disconnected, the output signal of the output terminal 313 of the nth second shift register 302 overlaps the output signal of the output terminal 313 of the nth first shift register 301, i.e., the high voltage signal overlaps the low voltage signal.

For another example, when the pixel driving circuit in the sub-pixel in the display panel is a high-level turn-on circuit, the first input signal STV-1 may be a constant high signal. The second input signal STV-2 may be a constant low signal. At this time, the voltage V1 is high, and the voltage V2 is low. For example, the voltage V1 may be a signal of the high voltage terminal VGHS shown in fig. 6, and the voltage V2 may be a signal of the low voltage terminal VGL shown in fig. 6. If the detection line L surrounding the hole H is not disconnected, the output signal of the output terminal 313 of the nth second shift register 302 overlaps the output signal of the output terminal 313 of the nth first shift register 301, i.e., the low voltage signal overlaps the high voltage signal.

In addition, in some implementations, the detection circuit 1001 may include a third voltage terminal 1002 and a fourth voltage terminal 1003, the third voltage terminal 1002 being connected to the fourth voltage terminal 1003.

The third voltage terminal 1002 provides the voltage V3 to the first voltage terminal 314 of the first shift register 301 through the resistor R0, and the fourth voltage terminal 1003 provides the voltage V4 to the second voltage terminal 315 of the second shift register 302. Wherein, the resistance value of the resistor R0 can be larger than or equal to one hundred ohms. The resistance of the resistor R0 is large, and the voltage signal is greatly weakened after passing through the resistor R0.

That is, the third voltage terminal 1002 and the fourth voltage terminal 1003 have the same voltage V4, the voltage V4 may be directly provided to the second voltage terminal 315 of the second shift register 302, and then the second voltage terminal 315 provides the voltage V2 of the second input signal STV-2, i.e., the voltage V4 may be the same as the voltage V2. The voltage V4 is attenuated by the resistor R0 to become a voltage V3. Then, the voltage V3 is provided to the first voltage terminal 314 of the first shift register 301, so that the first voltage terminal 314 provides the voltage V1 in the first input signal STV-1 through the weakened voltage V3, i.e., the voltage V1 may be the same as the voltage V3. The first input signal STV-1 is thus weak, so that the second input signal STV-2 can overwrite the first input signal STV-1.

In the normal display, as shown in fig. 10, the third voltage terminal 1002 may provide a voltage V4 to the first voltage terminal 314 of the first shift register 301, and the fourth voltage terminal 1003 may provide a voltage V4 to the second voltage terminal 315 of the second shift register 302. That is, during normal display, the third voltage terminal 1002 and the fourth voltage terminal 1003 directly supply the voltage V4 to the first voltage terminal 314 of the first shift register 301 and the second voltage terminal 315 of the second shift register 302, respectively, without passing through the resistor R0, so that the first input signal STV-1 and the second input signal STV-2 have a considerable signal strength and are not overlapped with each other, thereby completing normal display.

In other implementations, the detection circuit 1001 further includes a detection sub-circuit 120, the detection sub-circuit 120 configured to: by detecting the signal from the signal detection end 320, it is determined whether there is a crack around the hole.

That is, the detection sub-circuit 120 can detect the signal of the signal detection terminal 320 led out from the output terminal of the first shift register, so as to determine whether the signal of the signal detection terminal 320 can make the sub-pixel connected thereto emit light, i.e., whether the detection line L surrounding the hole H is disconnected, thereby determining whether cracks occur around the hole.

For example, referring to fig. 10, the detection circuit 1001 may be provided within an Integrated Circuit (IC) connected to the display panel. At this time, as shown in fig. 10, the resistor R0 may be provided within the IC.

As another example, the portion of the detection circuit 1001 other than the resistor R0 may be provided inside the IC, and the resistor R0 may be provided outside the IC.

Of course, the detection circuit 1001 may be provided in the display device independently or in another circuit provided in the display device, and this embodiment of the present application is not limited thereto.

In some implementations, the function of the detection circuit 1001 may be implemented by other detection devices besides the display device. For example, the above-described function of detecting whether or not there is a crack around a hole in the display panel may be realized by a lighting test of a lighting machine before the display panel is bound to the IC.

Based on this, the embodiment of the present application also provides a detection apparatus, see fig. 11, the detection apparatus 1100 is configured to detect whether there is a crack around a hole in a display panel.

The structure of the display panel may be as shown in fig. 8a, the display panel 10 has a display area a and a peripheral area B located at the periphery of the display area a, a hole H is provided in the display area a, a first gate driving circuit 31 is provided at one side of the peripheral area B, a second gate driving circuit 32 is provided at the other side of the peripheral area B, the first gate driving circuit 31 includes a plurality of sequentially cascaded first shift registers 301, the second gate driving circuit 32 includes a plurality of sequentially cascaded second shift registers 302, and each of the first shift registers 301 and the second shift registers 302 includes an input end 311 and an output end 313.

In the case of detecting whether there is a crack around the hole H of the display area a of the display panel 10, the detection apparatus 1100 is configured to: a first input signal STV-1 enabling the sub-pixel connected to the first shift register 301 to emit light is supplied to the input terminal 311 of the first shift register 301, and a second input signal STV-2 enabling the sub-pixel connected to the first second shift register 302 to not emit light is supplied to the input terminal 311 of the first second shift register 302. Wherein the second input signal STV-2 can overlap the first input signal STV-1.

The advantageous effects of the detection apparatus 1100 are the same as the advantageous effects of the detection circuit 1001 in the display apparatus, and are not described herein again.

In addition, in some implementations, the detection apparatus 1100 may include a third voltage terminal 1002 and a fourth voltage terminal 1003, the third voltage terminal 1002 being connected to the fourth voltage terminal 1003.

The third voltage terminal 1002 provides the voltage V3 to the first voltage terminal 314 of the first shift register 301 through the resistor R0, and the fourth voltage terminal 1003 provides the voltage V4 to the second voltage terminal 315 of the second shift register 302.

Wherein the voltage V1 of the first input signal STV-1 is provided by the first voltage terminal 314, and the voltage V2 of the second input signal STV-2 is provided by the second voltage terminal 315. The plurality of first shift registers 301 are connected to a first voltage terminal 314, and the plurality of second shift registers 302 are connected to a second voltage terminal 315; the first voltage terminal 314 includes a low voltage terminal and/or a high voltage terminal, and the second voltage terminal 315 includes a low voltage terminal and/or a high voltage terminal. The resistance value of the resistor is greater than or equal to one hundred ohms.

The advantageous effects of the detection apparatus 1100 provided in the embodiment of the present application are the same as the advantageous effects of the detection circuit 1001 in the display apparatus, and are not described herein again.

In addition, the embodiment of the application also provides a hole periphery crack detection method. Referring to fig. 8a, the hole H is disposed in the display area a of the display panel 10, wherein the display panel 10 has the display area a and a peripheral area B located at the periphery of the display area a, one side of the peripheral area B is provided with a first gate driving circuit 31, the other side of the peripheral area B is provided with a second gate driving circuit 32, the first gate driving circuit 31 includes a plurality of sequentially cascaded first shift registers 301, the second gate driving circuit 32 includes a plurality of sequentially cascaded second shift registers 302, and each of the first shift registers 301 and the second shift registers 302 includes an input end 311 and an output end 313. Referring to fig. 12, the method includes:

s121, providing a first input signal capable of enabling the sub-pixels connected with the first shift register to emit light to the input end of the first shift register;

s122, providing a second input signal which can enable the sub-pixels connected with the first second shift register not to emit light to the input end of the first second shift register; wherein the second input signal is capable of overlaying the first input signal.

The advantageous effects of the method for detecting cracks around a hole provided in the embodiment of the present application are the same as those of the detection circuit 1001 or the detection apparatus 1100, and are not described herein again.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A display panel is characterized in that the display panel is provided with a display area and a peripheral area located at the periphery of the display area, holes are formed in the display area, a first grid driving circuit is arranged on one side of the peripheral area, a second grid driving circuit is arranged on the other side of the peripheral area, the first grid driving circuit comprises a plurality of first shift registers which are sequentially cascaded, the second grid driving circuit comprises a plurality of second shift registers which are sequentially cascaded, and each first shift register and each second shift register respectively comprise an input end and an output end;

the output end of the Nth first shift register in the plurality of first shift registers is connected with the output end of the Nth second shift register in the plurality of second shift registers through the detection lines surrounding the holes; the signal of the output end of the Nth first shift register is used for representing whether the detection line is broken or not, and N is more than or equal to 1;

in the case that N > 1, the output terminal of the ith first shift register in the plurality of first shift registers is disconnected from the output terminal of the ith second shift register in the plurality of second shift registers; wherein i is less than or equal to N-1.

2. The display panel according to claim 1, wherein output terminals of a consecutive plurality of first shift registers from the N +1 th first shift register are disconnected from output terminals of a consecutive plurality of second shift registers from the N +1 th second shift register, respectively.

3. The display panel according to claim 2, wherein an output terminal of a jth first shift register in the plurality of first shift registers is disconnected from an output terminal of a jth second shift register in the plurality of second shift registers; wherein j is more than or equal to N + 1.

4. The display panel according to claim 1, wherein an output terminal of the nth first shift register is connected to a signal detection terminal.

5. The display panel according to claim 3, wherein an output terminal of a last one of the plurality of first shift registers is connected to a signal detection terminal.

6. The display panel according to any one of claims 1 to 5, wherein the gate driver circuit is a scanning gate driver circuit or a light emission control gate driver circuit.

7. A display device comprising the display panel according to any one of claims 1 to 6.

8. The display device according to claim 7, further comprising a detection circuit,

in the case of detecting whether there is a crack around the hole, the detection circuit is configured to: providing a first input signal to an input terminal of a first one of the first shift registers capable of causing a subpixel connected to the first one of the first shift registers to emit light, and providing a second input signal to an input terminal of a first one of the second shift registers capable of causing a subpixel connected to the first one of the second shift registers to not emit light; wherein the second input signal is capable of overlaying the first input signal.

9. The display device according to claim 8, wherein each of the first shift registers further comprises a first voltage terminal, and each of the second shift registers further comprises a second voltage terminal; the voltage in the first input signal is provided by the first voltage terminal, and the voltage in the second input signal is provided by the second voltage terminal;

the plurality of first shift registers are connected with the first voltage end, and the plurality of second shift registers are connected with the second voltage end; the first voltage terminal includes a low voltage terminal and/or a high voltage terminal, and the second voltage terminal includes a low voltage terminal and/or a high voltage terminal.

10. The display device according to claim 9, wherein the detection circuit includes a third voltage terminal and a fourth voltage terminal, the third voltage terminal being connected to the fourth voltage terminal;

the third voltage end provides voltage to the first voltage end of the first shift register through a resistor, and the fourth voltage end provides voltage to the second voltage end of the second shift register; wherein the resistance value of the resistor is greater than or equal to one hundred ohms.

11. The display device according to claim 8, wherein the first input signal is a constant signal; and/or the second input signal is a constant signal.

12. The display device according to any one of claims 8-11, wherein the detection circuit further comprises a detection sub-circuit configured to: and determining whether cracks exist around the hole by detecting the signal of the signal detection end.

13. A detection apparatus, characterized by being configured to detect whether there is a crack around a hole in a display panel; the display panel is provided with a display area and a peripheral area located at the periphery of the display area, the display area is internally provided with the holes, one side of the peripheral area is provided with a first grid driving circuit, the other side of the peripheral area is provided with a second grid driving circuit, the first grid driving circuit comprises a plurality of first shift registers which are sequentially cascaded, the second grid driving circuit comprises a plurality of second shift registers which are sequentially cascaded, and each first shift register and each second shift register comprise an input end and an output end;

in the case of detecting whether there is a crack around a hole of a display area of a display panel, the detection device is configured to:

providing a first input signal to an input terminal of a first one of the first shift registers capable of causing a subpixel connected to the first one of the first shift registers to emit light, and providing a second input signal to an input terminal of a first one of the second shift registers capable of causing a subpixel connected to the first one of the second shift registers to not emit light; wherein the second input signal is capable of overlaying the first input signal.

14. The detection device according to claim 13, wherein the detection device comprises a third voltage terminal and a fourth voltage terminal, the third voltage terminal being connected to the fourth voltage terminal;

the third voltage end provides voltage to the first voltage end of the first shift register through a resistor, and the fourth voltage end provides voltage to the second voltage end of the second shift register;

wherein the voltage in the first input signal is provided by the first voltage terminal and the voltage in the second input signal is provided by the second voltage terminal; the plurality of first shift registers are connected with the first voltage end, and the plurality of second shift registers are connected with the second voltage end; the first voltage end comprises a low voltage end and/or a high voltage end, and the second voltage end comprises a low voltage end and/or a high voltage end; the resistance value of the resistor is greater than or equal to one hundred ohms.

15. The hole periphery crack detection method is characterized in that a hole is arranged in a display area of a display panel, wherein the display panel is provided with the display area and a peripheral area located on the periphery of the display area, a first grid drive circuit is arranged on one side of the peripheral area, a second grid drive circuit is arranged on the other side of the peripheral area, the first grid drive circuit comprises a plurality of first shift registers which are sequentially cascaded, the second grid drive circuit comprises a plurality of second shift registers which are sequentially cascaded, and each of the first shift registers and the second shift registers comprises an input end and an output end; the method comprises the following steps:

providing a first input signal to an input of a first one of said first shift registers capable of causing a first one of said first shift register connected sub-pixels to emit light;

providing a second input signal to an input of a first one of said second shift registers capable of rendering a subpixel connected to the first one of said second shift registers non-emissive; wherein the second input signal is capable of overlaying the first input signal.