Display panel and electronic device

Abstract

The application discloses a display panel and an electronic device. The display panel comprises a substrate, a plurality of pixel modules arranged in an array on the substrate, along a first direction of the substrate, the plurality of pixel modules comprising N rows of pixel modules, along a second direction of the substrate, the plurality of pixel modules comprising M columns of pixel modules, the first direction and the second direction intersecting, M and N being positive integers; N data lines arranged on the substrate and connected to the N rows of pixel modules in a one-to-one correspondence; M scanning lines arranged on the substrate and connected to the M columns of pixel modules in a one-to-one correspondence; at least one signal line arranged on the substrate and connected to at least one row of the N rows of pixel modules in a one-to-one correspondence; and a control circuit connected to the at least one signal line and the M scanning lines, configured to output coordinate information of a target pixel module in the case that a first scanning line outputs a first level and a first signal line outputs a second level, the target pixel module being any one of the plurality of pixel modules.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of display, and particularly relates to a display panel and electronic equipment. BACKGROUND

[0002] The touch display screen can receive the input of a user while realizing content display, and the user can select a function to be executed through interaction with the touch display screen.

[0003] In the related technical solution, the touch display screen is based on an existing liquid crystal display (LCD) and additionally increases a light-sensing sensor, such as a thin film transistor, to sense the position of a laser pen irradiated into the liquid crystal display by using the light-sensing sensor.

[0004] Since any position in the liquid crystal display needs to be provided with a light-sensing sensor, a large number of light-sensing sensors are needed in the touch display screen, which increases the manufacturing cost of the liquid crystal display. SUMMARY

[0005] Embodiments of the application provide a display panel and electronic equipment, which can at least solve the problem that a large number of light-sensing sensors are needed in the touch display screen, which increases the manufacturing cost of the liquid crystal display.

[0006] In a first aspect, the embodiments of the application provide a display panel, comprising: a substrate; a plurality of pixel modules, which are arranged in an array on the substrate, along a first direction of the substrate, the plurality of pixel modules comprise N rows of pixel modules, along a second direction of the substrate, the plurality of pixel modules comprise M columns of pixel modules, the first direction and the second direction intersect, and M and N are positive integers; N data lines, which are arranged on the substrate and connected to the N rows of pixel modules in one-to-one correspondence; M scan lines, which are arranged on the substrate and connected to the M columns of pixel modules in one-to-one correspondence; at least one signal line, which is arranged on the substrate and connected to at least one row of the N rows of pixel modules in one-to-one correspondence; a control circuit, which is connected to the at least one signal line and the M scan lines, and used for outputting coordinate information of a target pixel module in a case that a first scan line outputs a first level and a first signal line outputs a second level, the target pixel module being any one of the plurality of pixel modules; wherein in a case that the target pixel module is irradiated by light and is not in a display state, the first scan line outputs the first level and the first signal line outputs the second level, the first scan line being a scan line connected to the target pixel module, and the first signal line being a signal line connected to the target pixel module.

[0007] In a second aspect, the embodiments of the application provide electronic equipment, comprising: the display panel of any one of the first aspect.

[0008] In the embodiment of the present application, the display panel includes a substrate, a plurality of pixel modules, N data lines, M scan lines, at least one signal line, and a control circuit. In the display panel, the signal line can be used to determine whether the pixel module is affected by light irradiation. In combination with the connection relationship between the at least one signal line and the N rows of pixel modules, the signal line and the scan line can be used in combination to obtain the coordinate information of the pixel module, and the level output by the signal line and the scan line is used to determine whether the pixel module is affected by light irradiation.

[0009] In the above embodiment, the display panel can perceive the position of the laser pen irradiating into the display panel. In this process, the pixel modules in the display panel are multiplexed, and a photosensitive sensor does not need to be additionally added on the basis of the display panel, so that the interaction between the user and the display panel is realized while the cost of the display panel is almost not changed. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 FIG. 1 is a structural schematic diagram of a liquid crystal display screen in a related technical solution;

[0011] Figure 2 FIG. 2 is a schematic diagram of the working principle of a thin film transistor provided by some embodiments of the present application;

[0012] Figure 3 FIG. 3 is a schematic diagram of the working principle of a thin film transistor provided by some embodiments of the present application;

[0013] Figure 4 FIG. 4 is a structural schematic diagram of a display panel provided by some embodiments of the present application;

[0014] Figure 5 FIG. 5 is a structural schematic diagram of a display panel provided by some embodiments of the present application.

[0015] APPENDIX Figure 1 MARKS:

[0016] 1' data line, 2' common electrode line, 3' gate line, 4' optical sensing signal line, 5' optical sensing control line, 102' optical sensor, 104' control switch.

[0017] APPENDIX Figures 2 to 5 MARKS:

[0018] 402 substrate, 404 pixel module, 406 data line, 408 scan line, 410 signal line, 4042 pixel unit, D1 first diode, 4044 thin film transistor, D2 light emitting diode, 412 control circuit, 4122 NOT gate, 4124 coordinate reading module, 4126 AND gate, 414 display driving module, 4142 scan driver, 4144 data driver, 416 power supply circuit, R resistor, VCC power supply, 202 voltage detection circuit. DETAILED DESCRIPTION

[0019] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts under the premise that no creative efforts are made, fall within the scope of protection of the present application.

[0020] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0021] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the related technical solutions, as shown in the figure, the liquid crystal display screen includes data lines 1' arranged along the column direction of the substrate, common electrode lines 2' arranged along the row direction of the substrate, the light sensing sensor includes an optical sensor 102' and a control switch 104', the gate and drain of the optical sensor 102' are connected with the optical sensing control line 5', the gate of the control switch 104' is connected with the gate line 3', the source of the optical sensor 102' is connected with the drain of the control switch 104', and the source of the control switch 104' is connected with the optical sensing signal line 4'. Figure 1

[0023] The following explains the terms mentioned in the present application: Thin Film Transistor (TFT) is a kind of device, thin film transistor includes three pins of drain, gate and source, when thin film transistor is illuminated, the semiconductor material in the thin film transistor will produce weak voltage on the gate due to photoelectric effect, and the thin film transistor as a field effect transistor has voltage amplification function, the weak voltage generated by the gate will form a higher voltage on the source. ​

[0024] Specifically, as shown in Figure 2 and Figure 3 , the drain of the TFT is connected to the power supply VCC, the gate is grounded through the resistor R, and the source is connected to the voltage detection circuit 202. In the case where the TFT is not illuminated, the voltage detection circuit 202 cannot detect the voltage, and in the case where the TFT is illuminated, the voltage detection circuit 202 detects the voltage.

[0025] The display panel and electronic device provided by the embodiments of the present application will be described in detail below in combination with the drawings, through specific embodiments and application scenarios.

[0026] In some embodiments of the present application, as shown in Figure 4 and Figure 5 , a display panel is proposed, comprising: a substrate 402; a plurality of pixel modules 404 arranged in an array on the substrate 402, along a first direction of the substrate 402, the plurality of pixel modules 404 comprises N rows of pixel modules, along a second direction of the substrate 402, the plurality of pixel modules 404 comprises M columns of pixel modules, the first direction and the second direction intersect, and M and N are positive integers; N data lines 406 provided on the substrate 402 and connected to the N rows of pixel modules one by one; M scan lines 408 provided on the substrate 402 and connected to the M columns of pixel modules one by one; at least one signal line 410 provided on the substrate 402 and connected to at least one row of the N rows of pixel modules one by one; a control circuit 412 connected to the at least one signal line 410 and the M scan lines 408, for outputting coordinate information of a target pixel module in the case where a first scan line outputs a first level and a first signal line outputs a second level, the target pixel module being any one of the plurality of pixel modules 404; wherein, in the case where the target pixel module is illuminated by light and is not in a display state, the first scan line outputs the first level and the first signal line outputs the second level, the first scan line being a scan line connected to the target pixel module, and the first signal line being a signal line connected to the target pixel module.

[0027] In the display panel, the signal line 410 can be used to determine whether the pixel module 404 is affected by light illumination, and in combination with the connection relationship between the at least one signal line 410 and the N rows of pixel modules, the signal line 410 and the scan line 408 can be used in combination as coordinate information of the pixel module 404, and whether the pixel module 404 is affected by light illumination can be determined according to the levels output by the signal line 410 and the scan line 408.

[0028] In the above embodiment, the display panel can perceive the position of the laser pen irradiated into the display panel, in the process, the pixel module 404 in the display panel is multiplexed, without additionally adding a photosensitive sensor on the basis of the display panel, the interaction between the user and the display panel is realized while the cost of the display panel is almost unchanged.

[0029] In some embodiments of the present application, the pixel module 404 includes: a pixel unit 4042, a control end of the pixel unit 4042 is connected with a corresponding scan line, a power supply end of the pixel unit 4042 is connected with a corresponding data line, and a ground end of the pixel unit 4042 is grounded; a first diode D1, a positive electrode of the first diode D1 is connected with the pixel unit 4042, and a negative electrode of the first diode D1 is connected with a corresponding signal line; in the case that the pixel module is irradiated by light and is not in a display state, the control end of the pixel unit 4042 outputs a first level, and the negative electrode of the first diode D1 outputs a second level.

[0030] In this embodiment, the control end of the pixel unit 4042 is connected with the corresponding scan line, therefore, the pixel unit 4042 can be dynamically turned on and off according to the signal output by the scan line, so as to realize the refresh of the display content, and the power supply end of the pixel unit 4042 is connected with the corresponding data line, so as to supply power to the pixel unit 4042 by using the data line, in the case that the pixel unit 4042 is in a turned-on state, the pixel unit 4042 can emit light to realize the display of the content.

[0031] In the above embodiment, the first diode D1 is provided, which can limit the current conduction direction between the signal line and the pixel unit 4042, so that in the case that the signal line is connected with a plurality of pixel units 4042, whether the plurality of pixel units 4042 emit light becomes independent, thereby accurately determining the pixel module irradiated by light.

[0032] Specifically, if the pixel module 404 does not contain the first diode D1, the position of the pixel unit 4042 connected with the first diode D1 will be directly connected with the corresponding signal line, and in the case that a plurality of pixel modules are connected to the same signal line, if the position connected with the signal line in any one of the pixel modules is at the second level, all the pixel modules on the signal line will output the second level, at this time, it will not be possible to accurately determine the pixel module irradiated by light.

[0033] Obviously, the first diode D1 is provided, which can separate different pixel units 4042, overcome the above situation, and accurately determine the pixel module irradiated by light.

[0034] In some embodiments of the present application, the pixel unit 4042 comprises: a thin film transistor 4044, a gate of the thin film transistor 4044 being connected with a corresponding scanning line, a drain of the thin film transistor 4044 being connected with a corresponding data line; a light emitting diode D2, a positive electrode of the light emitting diode D2 being connected with a source of the thin film transistor 4044, a negative electrode of the light emitting diode D2 being grounded; a positive electrode of a first diode D1 being connected with the source of the thin film transistor 4044, a negative electrode of the first diode D1 being connected with a corresponding signal line; wherein, in a case that the pixel module 404 is irradiated by light and is not in a display state, the thin film transistor 4044 is in an off state.

[0035] In this embodiment, as known from the above, the scanning line can output a signal, and the thin film transistor 4044 can respond to the signal to switch its on state.

[0036] Specifically, when the pixel unit 4042 is not in a display state, the light emitting diode D2 needs not to emit light, and the light emitting diode D2 emits light only when the thin film transistor 4044 is in an on state. Therefore, in a case that the pixel module 404 is irradiated by light and is not in a display state, the thin film transistor 4044 needs to be in an off state, and the light emitting diode D2 needs not to emit light. At this time, the thin film transistor 4044 is irradiated by light, so that the voltage at the source of the thin film transistor 4044 is raised. The raised voltage is connected with the corresponding signal line through the first diode D1, so that the corresponding signal line outputs a second level.

[0037] For a case that the pixel module is not irradiated by light and is in a display state, the light emitting diode D2 needs to emit light, and the thin film transistor 4044 is in an on state. Since the thin film transistor 4044 is not irradiated by light, the voltage at the source of the thin film transistor 4044 is not raised. At this time, the voltage on the corresponding signal line is also not raised, so the corresponding signal line presents a first level.

[0038] For a case that the pixel module is not irradiated by light and is not in a display state, the thin film transistor 4044 is in a cut-off state. Since the thin film transistor 4044 is not irradiated by light, the voltage at the source of the thin film transistor 4044 is not raised. At this time, the voltage on the corresponding signal line is also not raised, so the corresponding signal line presents a first level.

[0039] For the case that the pixel module is illuminated by light and in the display state, the thin film transistor 4044 is in the on state, the thin film transistor 4044 is illuminated by light, and the voltage at the source of the thin film transistor 4044 rises. Although the voltage at the source of the thin film transistor 4044 rises, it will cause the voltage output by the corresponding signal line to rise. However, the working state of the light-emitting diode D2 at this time is different from the working state of the light-emitting diode D2 when the pixel module is illuminated by light and not in the display state. Therefore, the above cases can be distinguished according to whether the pixel module is in the display state, so as to verify that the coordinate information of the pixel module is in the valid state.

[0040] In some embodiments of the present application, the control circuit 412 includes M NAND gates 4122, which are connected in one-to-one correspondence with the M scan lines 408; a coordinate reading module 4124, which includes M first input interfaces, at least one second input interface, a first output interface, and a second output interface, the M first input interfaces are connected in one-to-one correspondence with the outputs of the M NAND gates 4122, the at least one second input interface is connected in one-to-one correspondence with the at least one signal line 410, and the coordinate reading module 4124 is configured to obtain the coordinate information of the pixel module 404 based on the M first input interfaces and the at least one second input interface, and to communicate the first input interface corresponding to the pixel module 404 with the first output interface, and to communicate the second input interface with the second output interface; an AND gate 4126, a first input end of the AND gate 4126 is connected with the first output interface, a second input end of the AND gate 4126 is connected with the second output interface, and an output end of the AND gate 4126 is configured to output a verification result of the coordinate information of the pixel module 404; wherein the verification result includes a valid state and an invalid state; and the coordinate reading module 4124 is further configured to output the coordinate information of the pixel module 404 when the verification result corresponding to the coordinate information of the pixel module 404 is in the valid state.

[0041] In this embodiment, by setting the NAND gate 4122, the level output on the scan line 408 can be inverted, so that the inverted level is ANDed with the level input by the signal line 410, and then the output result of the AND gate 4126 is used as the determination result of whether the coordinate information of the pixel module is in the valid state.

[0042] In this process, the verification of whether the coordinate information of the pixel module is in the valid state can be implemented based on a digital circuit, without the need to calculate the level signal, thereby reducing the complexity of the verification.

[0043] In the above embodiment, the coordinate reading module 4124 is configured to take the connection relationship between the M first input interfaces and the outputs of the M NAND gates 4122, and the connection relationship between the at least one second input interface and the at least one signal line 410 as the coordinate information of each pixel module, so that in the process of respectively connecting the first input interface and the first output interface corresponding to each pixel module, and connecting the second input interface and the second output interface, the AND gate 4126 is used to determine whether the coordinate information output by each pixel module is in a valid state.

[0044] For example, the display panel includes 100 signal lines, 100 data lines, and 50 scan lines, and the display panel has 100*50 intersection points in total, one pixel module is arranged at each intersection point, 50 scan lines are connected to 50 NAND gates and then connected to 50 first input interfaces of the coordinate reading module one by one, 100 signal lines are connected to 100 second input interfaces of the coordinate reading module one by one, one first input interface and one second input interface can locate one pixel module, so as to determine the coordinate information of the pixel module, and the AND gate is used to determine whether the coordinate information is valid.

[0045] In some embodiments of the present application, the signal output by the signal line can be used as the vertical coordinate of the pixel module, and the signal output by the scan line can be used as the horizontal coordinate of the pixel module.

[0046] For example, for the pixel module determined by the 25th first input interface and the 70th second input interface, i.e., the 25th scan line and the 70th signal line, the coordinate information can be (25, 70).

[0047] For example, for the pixel module determined by the 25th first input interface and the 80th second input interface, i.e., the 25th scan line and the 80th signal line, the coordinate information can be (25, 80).

[0048] In some embodiments of the present application, when the NAND gate 4122 takes the first level as the input, the NAND gate 4122 outputs the second level;

[0049] When the first input end of the AND gate 4126 inputs the second level and the second input end of the AND gate 4126 inputs the second level, the output end of the AND gate 4126 outputs a valid state as the verification result;

[0050] When the first input end of the AND gate 4126 inputs the second level and the second input end of the AND gate 4126 inputs the first level, the output end of the AND gate 4126 outputs an invalid state as the verification result;

[0051] In a case that the first input end of the AND gate 4126 inputs the first level and the second input end of the AND gate 4126 inputs the first level, the verification result output by the output end of the AND gate 4126 is the invalid state.

[0052] In a case that the first input end of the AND gate 4126 inputs the first level and the second input end of the AND gate 4126 inputs the second level, the verification result output by the output end of the AND gate 4126 is the invalid state.

[0053] In this embodiment, according to different combinations of the levels of the corresponding scanning lines and signal lines output by the pixel module according to whether it is illuminated or whether it is in the display state, the AND gate 4126 can only output the verification result of 1 in a case that the input is the same high level, and therefore in the embodiments of the present application, the second level is taken as 1 and the first level is taken as 0, and the operation rules of the first input end and the second input end of the AND gate 4126 in different input cases are given, the above operation rules can correspond to whether the pixel module is illuminated or whether it is in the display state one by one, so as to output the verification result by using the AND gate 4126.

[0054] In some embodiments of the present application, the display panel further includes a display driving module 414 connected with the M scanning lines 408 and the N data lines 406, used for driving the pixel module to work.

[0055] In this embodiment, the display driving module 414 is arranged to output corresponding signals to the N data lines 406 and the M scanning lines 408 by using the display driving module 414, so as to drive the pixel module array 404 to work, and the content is displayed by using the pixel module array 404.

[0056] In some embodiments of the present application, the display driving module 414 includes a scanning driver 4142 connected with the M scanning lines 408, used for providing a scanning signal, and a data driver 4144 connected with the N data lines 406, used for providing a data signal, wherein the pixel module 404 works according to the scanning signal and the data signal.

[0057] In this embodiment, the scanning driver 4142 and the data driver 4144 can be used to independently provide signals to the M scanning lines and the N data lines, so as to improve the accuracy of data distribution.

[0058] In some embodiments of the present application, the display panel further includes a power supply circuit 416 connected with the display driving module 414 and the control circuit 412, used for supplying power to the display driving module 414 and the control circuit 412.

[0059] In this embodiment, the same power supply circuit 416 is used to supply power to the display driving module 414 and the control circuit 412, which can reduce the number of power supply circuits 416 and thus reduce the manufacturing cost of the display panel.

[0060] In some embodiments of the present application, the N data lines 406 are staggered with the at least one signal line 410.

[0061] In this embodiment, the N data lines 406 are staggered with the at least one signal line 410, which can arrange the N data lines 406 and the at least one signal line 410 on the same side of the display panel, reduce the length of the signal line 410 and the control circuit 412, and reduce the requirement for the manufacturing process.

[0062] The working mode of the pixel module proposed in the present application is described in detail below.

[0063] Specifically, when the user uses a laser pen to irradiate the display panel, if the first pixel module is irradiated, the first pixel module has two states:

[0064] State one: the pixel unit in the first pixel module is in a display state, the thin film transistor in the pixel unit is in a conductive state, the coordinate signal Y1 output by the signal line is at the second level, the corresponding scanning line outputs a high level, the coordinate signal X1 read by the coordinate reading module after passing through the NOT gate is at the first level, the result of the operation of the coordinate signal Y1 and the coordinate signal X1 by the AND gate is 0, at this time, the TRUE signal output by the AND gate is 0, and the read coordinate information is considered invalid.

[0065] State two: the pixel unit in the first pixel module is not in a display state, i.e., in a black stripe state, at this time, the thin film transistor in the pixel unit is in a cut-off state, the coordinate signal Y1 output by the signal line is at the second level, the corresponding scanning line outputs a low level, the coordinate signal X1 read by the coordinate reading module after passing through the NOT gate is at the second level, the result of the operation of the coordinate signal Y1 and the coordinate signal X1 by the AND gate is 1, i.e., the TRUE signal output by the AND gate is 1, at this time, the read coordinate information is considered valid.

[0066] In the case where the display panel is not irradiated by the laser pen, i.e., the first pixel module is not irradiated, the first pixel module has two states:

[0067] State one: the pixel unit in the first pixel module is in a display state, the thin film transistor in the pixel unit is in a conductive state, the coordinate signal Y1 output by the signal line is a second level, the corresponding scanning line outputs a high level, the coordinate signal X1 read by the coordinate reading module after the non-inverted gate is a first level, the result of the operation of the coordinate signal Y1 and the coordinate signal X1 is 0, that is, the TRUE signal output by the AND gate is 0, at this time, the read coordinate information is invalid, and the coordinate information is invalid.

[0068] State two: the pixel unit in the first pixel module is not in a display state, that is, a black bar state, at this time, the thin film transistor in the pixel unit is in a cut-off state, the coordinate signal Y1 output by the signal line is a first level, the corresponding scanning line outputs a low level, the coordinate signal X1 read by the coordinate reading module after the non-inverted gate is a second level, the result of the operation of the coordinate signal Y1 and the coordinate signal X1 is 0, that is, the TRUE signal output by the AND gate is 0, at this time, the read coordinate information is invalid, that is, invalid.

[0069] As can be seen from the above, the display panel is refreshed according to different refresh frequencies in the working process, for example, 60Hz to 90Hz refresh, so the first pixel module needs to be quickly switched between state one and state two, and the light spot irradiated by the laser pen stays for a relatively long time compared with the refresh frequency of the display panel, and the irradiation position of the laser pen usually experiences multiple switching between state one and state two, so the situation of rotating to state two can be realized, and therefore the detection of the light spot position can be realized.

[0070] In some embodiments of the present application, an electronic device is provided, comprising:

[0071] The display panel provided in any of the above embodiments.

[0072] In some embodiments of the present application, the electronic device can be a mobile phone, a tablet computer, a notebook computer, a palm computer, an in-vehicle electronic device, a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and can also be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a kiosk, or a self-service machine, etc., and the embodiments of the present application are not limited specifically.

[0073] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A display panel, characterized by, The application relates to a display panel, which comprises the following components: a substrate; a plurality of pixel modules arranged in an array on the substrate, wherein, along a first direction of the substrate, the plurality of pixel modules comprises N rows of pixel modules, and along a second direction of the substrate, the plurality of pixel modules comprises M columns of pixel modules, the first direction and the second direction intersect, and M and N are positive integers; N data lines arranged on the substrate and connected to the N rows of pixel modules one by one; M scanning lines arranged on the substrate and connected to the M columns of pixel modules one by one; at least one signal line arranged on the substrate and connected to at least one row of the N rows of pixel modules one by one; a control circuit connected to the at least one signal line and the M scanning lines, used for outputting coordinate information of a target pixel module under the condition that a first scanning line outputs a first level and a first signal line outputs a second level, the target pixel module being any one of the plurality of pixel modules; wherein, under the condition that the target pixel module is irradiated by light and is not in a display state, the first scanning line outputs the first level, the first signal line outputs the second level, the first scanning line is the scanning line connected to the target pixel module, and the first signal line is the signal line connected to the target pixel module; the pixel module comprises a pixel unit and a first diode; a control end of the pixel unit is connected to a corresponding scanning line, a power supply end of the pixel unit is connected to a corresponding data line, and a grounding end of the pixel unit is grounded; a positive electrode of the first diode is connected to the pixel unit, and a negative electrode of the first diode is connected to the corresponding signal line; under the condition that the pixel module is irradiated by light and is not in a display state, a control end of the pixel unit outputs the first level, and a negative electrode of the first diode outputs the second level; the pixel unit comprises a thin film transistor; a positive electrode of the first diode is connected to a source electrode of the thin film transistor.

2. The display panel of claim 1, wherein, a gate electrode of the thin film transistor is connected to a corresponding scanning line, and a drain electrode of the thin film transistor is connected to a corresponding data line; the pixel unit further comprises a light-emitting diode, a positive electrode of the light-emitting diode is connected to a source electrode of the thin film transistor, and a negative electrode of the light-emitting diode is grounded; wherein, under the condition that the pixel module is irradiated by light and is not in a display state, the thin film transistor is in an off state.

3. The display panel of claim 1, wherein, the control circuit comprises: M non-gates, the M non-gates being connected to the M scanning lines one by one; a coordinate reading module comprising M first input interfaces, at least one second input interface, a first output interface and a second output interface, the M first input interfaces being connected to output ends of the M non-gates one by one, the at least one second input interface being connected to the at least one signal line one by one, used for acquiring coordinate information of the pixel module based on the M first input interfaces and the at least one second input interface, and used for connecting the first input interface corresponding to the pixel module to the first output interface and connecting the second input interface to the second output interface; and And gate, the first input end of the and gate is connected with the first output interface, the second input end of the and gate is connected with the second output interface, and the output end of the and gate is used for outputting the verification result of the coordinate information of the pixel module; wherein the verification result includes a valid state and an invalid state; The coordinate reading module is further used for: In a case where the verification result corresponding to the coordinate information of the pixel module is the valid state, outputting the coordinate information of the pixel module.

4. The display panel of claim 3, wherein, The non gate outputs the second level when the first level is taken as the input; In a case where the first input end of the and gate inputs the second level and the second input end of the and gate inputs the second level, the output end of the and gate outputs the verification result as the valid state; In a case where the first input end of the and gate inputs the second level and the second input end of the and gate inputs the first level, the output end of the and gate outputs the verification result as the invalid state; In a case where the first input end of the and gate inputs the first level and the second input end of the and gate inputs the first level, the output end of the and gate outputs the verification result as the invalid state; In a case where the first input end of the and gate inputs the first level and the second input end of the and gate inputs the second level, the output end of the and gate outputs the verification result as the invalid state.

5. The display panel of any one of claims 1 to 4, wherein, The display panel further comprises: A display driving module connected with M scanning lines and N data lines, used for driving the pixel module to work.

6. The display panel of claim 5, wherein, The display driving module comprises: A scanning driver connected with the M scanning lines, used for providing a scanning signal; A data driver connected with the N data lines, used for providing a data signal; Wherein, the pixel module works according to the scanning signal and the data signal.

7. The display panel of claim 5, wherein, The display panel further comprises: A power supply circuit connected with the display driving module and the control circuit, used for supplying power to the display driving module and the control circuit.

8. The display panel of any of claims 1-4, wherein, The N data lines are staggered with at least one signal line.

9. An electronic device, comprising: It comprises: The display panel of any one of claims 1 to 8.

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