Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the technical field of display; the display panel comprises a substrate and a plurality of pixel structures, a first conductive layer is arranged on the substrate; a first semiconductor layer is arranged on the side of the first conductive layer away from the substrate; a light-emitting material layer is arranged on the side of the first semiconductor layer away from the first conductive layer; a second semiconductor layer is arranged on the side of the light-emitting material layer away from the first semiconductor layer; a second conductive layer is arranged on the side of the second semiconductor away from the light-emitting material layer; a first control electrode is arranged on the first conductive layer; a second control electrode is arranged on the side of the second conductive layer away from the second semiconductor; the first semiconductor layer comprises a plurality of first sub-semiconductors arranged at intervals, the second semiconductor layer comprises a plurality of second sub-semiconductors arranged at intervals, and the plurality of first sub-semiconductors and the plurality of second sub-semiconductors are arranged in one-to-one correspondence; the application improves the overall heat dissipation capacity of the pixel structure and prolongs the service life of the display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] MicroLED and MiniLED have the advantages of high brightness, high contrast, high color gamut, high resolution, fast response time, energy saving and low power consumption, and are considered as a new direction of display revolution technology, and have attracted widespread attention.

[0003] MicroLED and MiniLED generally have a basic structure composed of a substrate, an N-type semiconductor, an electron-hole recombination layer and a P-type semiconductor, and a metal electrode is arranged on the semiconductor layer. When thousands of MicroLEDs or MiniLEDs form a high-pixel (PPI) display product, numerous MicroLEDs or MiniLEDs are gathered, and the heat dissipation of the display device formed in this way will become a difficulty; therefore, it is necessary to design a MicroLED or MiniLED display device that can increase the heat dissipation capacity. SUMMARY

[0004] The purpose of the present application is to provide a display panel and a display device, which improve the overall heat dissipation capacity of the pixel structure through the design of the pixel structure, and prolong the service life of the display panel.

[0005] The present application discloses a display panel, comprising a substrate and a plurality of pixel structures arranged on the substrate, each of the pixel structures comprising a first conductive layer, a first semiconductor layer, a luminescent material layer, a second semiconductor layer, a second conductive layer, a first control electrode and a second control electrode, the first conductive layer being arranged on the light-incident surface of the substrate; the first semiconductor layer being arranged on the side of the first conductive layer away from the substrate; the luminescent material layer being arranged on the side of the first semiconductor layer away from the first conductive layer; the second semiconductor layer being arranged on the side of the luminescent material layer away from the first semiconductor layer; the second conductive layer being arranged on the side of the second semiconductor away from the luminescent material layer; the first control electrode being arranged on the first conductive layer, and the first control electrode being used to supply power to the first conductive layer; the second control electrode being arranged on the side of the second conductive layer away from the second semiconductor, and the second control electrode being used to supply power to the second conductive layer; wherein the first semiconductor layer comprises a plurality of first sub-semiconductors arranged at intervals, the second semiconductor layer comprises a plurality of second sub-semiconductors arranged at intervals, and the plurality of first sub-semiconductors and the plurality of second sub-semiconductors are arranged one-to-one to form a plurality of driving units, the first conductive layer supplies power to all the first sub-semiconductors, and the second conductive layer supplies power to all the second sub-semiconductors.

[0006] Optionally, the light-emitting material layer comprises a plurality of light-emitting sub-material bodies arranged at intervals, one side of the light-emitting sub-material body abutting against the first semiconductor layer, and the other side abutting against the second semiconductor layer; wherein the number of the light-emitting sub-material bodies is the same as the number of the driving units, and one light-emitting sub-material body is arranged corresponding to one driving unit.

[0007] Optionally, the display panel further comprises a detection unit and a compensation unit, the detection unit being connected with the compensation unit, the detection unit being used for detecting whether the driving unit is normally working, and the compensation unit being used for providing a compensation voltage for the driving unit; wherein when the detection unit detects that part of the driving units are not normally working, the compensation unit provides a corresponding compensation voltage for the normally working driving units according to the number of the driving units not normally working.

[0008] Optionally, a spacing region is arranged between two adjacent first sub-semiconductors, the first conductive layer comprises a tiling part arranged between the substrate and the first semiconductor layer and a spacing part arranged in the spacing region; wherein the spacing part of the first conductive layer is arranged abutting against the light-emitting material layer.

[0009] Optionally, the area of any two first sub-semiconductors is equal, and the area of any two second sub-semiconductors is equal.

[0010] Optionally, a plurality of air permeable holes are arranged on the second conductive layer, and the positions of the plurality of air permeable holes are arranged corresponding to the spacing region between two adjacent second sub-semiconductors.

[0011] Optionally, a thermoluminescent material is arranged in the air permeable hole.

[0012] Optionally, the first conductive layer is a transparent electrode layer, and the second conductive layer is a reflective metal layer.

[0013] Optionally, the first semiconductor layer is a P-type semiconductor layer, and the second semiconductor layer is an N-type semiconductor layer; or

[0014] The first semiconductor layer is an N-type semiconductor layer, and the second semiconductor layer is a P-type semiconductor layer.

[0015] The application further discloses a display device comprising a driving circuit and the display panel as described above, wherein the driving circuit drives the display panel.

[0016] The display panel provided by the present application can improve the overall heat dissipation capacity of the pixel structure, prolong the service life of the display panel to a certain extent, maintain the equal light emitting intensity of the light emitting areas divided on the pixel structure while improving the heat dissipation capacity, and avoid the display difference caused by the difference in light emitting intensity of the light emitting areas. In addition, the first conductive layer is connected with the plurality of first sub-semiconductors, and the second conductive layer is connected with the plurality of second sub-semiconductors. When an abnormality or damage occurs in a certain driving unit and the driving unit cannot be lighted, the remaining driving units can still obtain the voltage through the first conductive layer and the second conductive layer to continue to work, and the display panel will not be affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and constitute a part of the specification, illustrate the embodiments of the present application and serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0018] Figure 1 is a front view structural schematic diagram of a pixel structure of a display panel of the first embodiment of the present application;

[0019] Figure 2 is a top view structural schematic diagram of the pixel structure of the first embodiment of the present application;

[0020] Figure 3 is another structural schematic diagram of the pixel structure of the first embodiment of the present application;

[0021] Figure 4 is a structural schematic diagram of the pixel structure provided with a gas permeable hole of the first embodiment of the present application;

[0022] Figure 5 is a structural schematic diagram of a display panel of the second embodiment of the present application;

[0023] Figure 6 is a structural schematic diagram of a pixel structure of the third embodiment of the present application;

[0024] Figure 7 is a structural schematic diagram of a display device of the fourth embodiment of the present application.

[0025] The display panel 100 comprises a substrate 200, a pixel structure 300, a first conductive layer 310, a first semiconductor layer 320, a light-emitting material layer 330, a second semiconductor layer 340, a second conductive layer 350, a first control electrode 360, a second control electrode 370, a detection unit 400, a compensation unit 500, a driving circuit 600, and a display device 700. DETAILED DESCRIPTION

[0026] It needs to be understood that the terms used herein, the specific structures and functional details disclosed, are only for the purpose of describing specific embodiments, and are representative, but the present application can be embodied in many alternative forms, and should not be interpreted as being limited to the embodiments set forth herein.

[0027] In the description of the present application, the terms "first", "second" are only for the purpose of description, and should not be understood as indicating relative importance, or implying the number of the indicated technical features. Therefore, unless otherwise specified, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "comprising" and any variations thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can exist or be added.

[0028] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are described based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and do not indicate that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, 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 the internal communication of 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.

[0030] The application will be described in detail below with reference to the drawings and optional embodiments. It should be noted that the following described embodiments or technical features can be combined with each other to form new embodiments without conflict.

[0031] As shown in Figure 1 and Figure 2 As a first embodiment of the present application, a display panel 100 is disclosed, comprising a substrate 200 and a plurality of pixel structures 300 disposed on the substrate 200, each of the pixel structures 300 comprising a first conductive layer 310, a first semiconductor layer 320, a light-emitting material layer 330, a second semiconductor layer 340, a first control electrode 360 and a second control electrode 370, the first conductive layer 310 being disposed on the light-incident surface of the substrate 200; the first semiconductor layer 320 being disposed on the side of the first conductive layer 310 away from the substrate 200; the light-emitting material layer 330 being disposed on the side of the first semiconductor layer 320 away from the first conductive layer 310; the second semiconductor layer 340 being disposed on the side of the light-emitting material layer 330 away from the first semiconductor layer 320; the second conductive layer 350 being disposed on the side of the second semiconductor layer away from the light-emitting material layer 330; the first control electrode 360 being disposed on the first conductive layer 310, the first control electrode 360 being used to energize the first conductive layer 310; the second control electrode 370 being disposed on the side of the second conductive layer 350 away from the second semiconductor, the second control electrode 370 being used to energize the second conductive layer 350; the first semiconductor layer 320 comprising a plurality of first sub-semiconductors 321 arranged at intervals, the second semiconductor layer 340 comprising a plurality of second sub-semiconductors 341 arranged at intervals, the plurality of first sub-semiconductors 321 and the plurality of second sub-semiconductors 341 being arranged one-to-one to form a plurality of driving units, the first conductive layer 310 supplying power to all the first sub-semiconductors 321, and the second conductive layer 350 supplying power to all the second sub-semiconductors 341.

[0032] The display panel 100 of the embodiment, the plurality of first sub-semiconductor 321 of the first semiconductor layer 320 are arranged at intervals, the plurality of second sub-semiconductor 341 of the second semiconductor layer 340 are arranged at intervals, the pixel structure 300 in work, because the interval area is arranged between the first sub-semiconductor 321, and the interval area is arranged between the second sub-semiconductor 341, the pixel structure 300 has a large heat dissipation area, thereby improving the heat dissipation capacity of the pixel structure 300 as a whole, and by arranging the first conductive layer 310 and the second conductive layer 350, the first conductive layer 310 is connected with the plurality of first sub-semiconductor 321 and the first control electrode 360, the second conductive layer 350 is connected with the plurality of second sub-semiconductor 341 and the second control electrode 370, so that the voltage received by each first sub-semiconductor 321 in work is equal, and the voltage received by each second sub-semiconductor 341 in work is also equal, so that the light emitting intensity of the plurality of light emitting areas corresponding to the driving unit on the light emitting material layer 330 is equal; In general, the display panel 100 of the embodiment not only improves the heat dissipation capacity of the pixel structure 300 as a whole, prolongs the service life of the display panel 100 to some extent, and while improving the heat dissipation capacity, can also maintain the light emitting intensity of the light emitting area divided on the pixel structure 300 equal, without the case that the light emitting intensity of the light emitting area exists difference brings the case of display difference, and by connecting the plurality of first sub-semiconductor 321 through the first conductive layer 310, connecting the plurality of second sub-semiconductor 341 through the second conductive layer 350, when a certain driving unit appears abnormal or damaged and cannot be lit, the remaining driving units can still obtain voltage through the first conductive layer 310 and the second conductive layer 350 to continue to work, without affecting the display of the display panel 100;

[0033] It should be noted that the pixel structure 300 can be any one of a red pixel structure 300, a green pixel structure 300 or a blue pixel structure 300; the area of any two first sub-semiconductors 321 is equal, the area of any two second sub-semiconductors 341 is equal, so that the light emitting intensity of the light emitting area of the light emitting material layer 330 corresponding to each driving unit on the pixel structure 300 is equal;

[0034] It can be understood that the interval regions between the first sub-semiconductor 321 and the interval regions between the second sub-semiconductor 341 are only interval space regions in this embodiment, and no material is arranged; the first control electrode 360 is arranged on the first conductive layer 310, and the first control electrode 360 can be arranged in the same layer as the first conductive layer 310 or in different layers. When the first control electrode 360 is arranged in the same layer, the area of the first semiconductor layer 320 and the second semiconductor layer 340 in the pixel structure 300 can continue to increase, covering the entire pixel structure 300 to expand the light-emitting area of the pixel structure 300. When the first control electrode 360 is arranged in different layers, the connection of the first control electrode 360 is easier to arrange.

[0035] Further, as shown in Figure 3 The light-emitting material layer 330 of the display panel 100 in this embodiment can be arranged in an integral layer to reduce the light-emitting area loss of the pixel structure 300. Of course, the light-emitting material layer 330 of the display panel 100 in this embodiment can also be arranged as a plurality of interval arranged light-emitting sub-material bodies 331, as shown in Figure 1 The light-emitting sub-material body 331 is in abutment with the first semiconductor layer 320 on one side and in abutment with the second semiconductor layer 340 on the other side. The number of the light-emitting sub-material body 331 is the same as the number of the driving units, and one light-emitting sub-material body 331 is arranged corresponding to one driving unit. There is also an interval region between the light-emitting sub-material bodies 331, and the interval region between the light-emitting sub-material bodies 331 coincides with the interval region between the first sub-semiconductor 321 and the interval region between the second sub-semiconductor 341. The heat dissipation area of the pixel structure 300 is increased to further improve the heat dissipation capacity of the pixel structure 300.

[0036] Among them, as shown in Figure 1As shown, the first control electrode 360 of the present embodiment directly supplies power to the plurality of first sub-semiconductor layers 321 of the first semiconductor layer 320 through the first conductive layer 310, while the original first control electrode 360 is arranged on the first semiconductor layer 320. If the first semiconductor layer 320 is arranged as a plurality of first sub-semiconductor layers 321, and the first control electrode 360 needs to supply power to the first sub-semiconductor layer 321 connected with the first control electrode 360 on the first semiconductor layer 320 first, and then the power is transmitted to the first conductive layer 310 through the first sub-semiconductor layer 321, and then the remaining first sub-semiconductor layers 321 are supplied with power, the pixel structure 300 needs to occupy a first sub-semiconductor layer 321 connected with the first control electrode 360. The first control electrode 360 of the present embodiment is directly arranged on the first conductive layer 310, so that the first sub-semiconductor layer 321 for connecting the first control electrode 360 and the first conductive layer 310 can be removed, and the volume of the first semiconductor layer 320 and the volume of the light emitting material layer 330 in the pixel structure 300 can be expanded, thereby increasing the area of the light emitting region of the pixel structure 300 of the present embodiment to a certain extent.

[0037] In the present embodiment, the first conductive layer 310 is a transparent electrode layer, so that the light emitted by the light emitting material layer 330 can pass through the first conductive layer 310 to exit the display panel 100. The second conductive layer 350 is a reflective metal layer, which not only serves as a conductive medium for connecting the second control electrode 370 and the plurality of second sub-semiconductor layers 341, but also reflects the light emitted by the light emitting material layer 330 towards the second conductive layer 350, and reflects the light towards the direction of the first conductive layer 310, thereby increasing the light utilization rate of the pixel structure 300. The first semiconductor layer 320 is a P-type semiconductor layer, and the second semiconductor layer 340 is an N-type semiconductor layer. Alternatively, the first semiconductor layer 320 is an N-type semiconductor layer, and the second semiconductor layer 340 is a P-type semiconductor layer. The first control electrode 360 and the second control electrode 370 are corresponding P-type power supply electrodes or N-type power supply electrodes, which apply corresponding signal voltages to the corresponding N-type semiconductor layer or P-type semiconductor layer.

[0038] Further, as shown in FIG. 3, the pixel structure 300 of the present embodiment includes a first control electrode 360 and a second control electrode 370, which are arranged on the first conductive layer 310 and the second conductive layer 350 respectively. Figure 4As shown, the second conductive layer 350 is provided with a plurality of air holes 351, and the positions of the plurality of air holes 351 correspond to the interval regions between the adjacent two second sub-semiconductors 341; the air holes 351 are arranged in the interval regions corresponding to the adjacent first sub-semiconductors 321 and the interval regions corresponding to the adjacent second sub-semiconductors 341; in this way, when the pixel structure 300 works, in addition to the heat dissipation through the above-mentioned interval regions, the design of the air holes 351 can prevent the separation of the second conductive layer 350 and the second semiconductor layer 340 when the heat of the pixel structure 300 is too much; the heat in the interval regions can be dissipated through the air holes 351; of course, the air holes 351 can be provided with thermoluminescent materials or heat-absorbing materials to further dissipate the heat of the pixel structure 300, and to a certain extent, prolong the service life of the display panel 100.

[0039] As shown, Figure 5 As a second embodiment, which is a further improvement of the first embodiment, the display panel 100 further comprises a detection unit 400 and a compensation unit 500, the detection unit 400 is connected with the compensation unit 500, the detection unit 400 is used to detect whether the driving unit works normally, and the compensation unit 500 is used to provide a compensation voltage for the driving unit; when the detection unit 400 detects that part of the driving unit does not work normally, according to the number of the driving units that do not work normally, the compensation unit 500 provides a corresponding compensation voltage for the driving units that work normally.

[0040] By setting the detecting unit 400, the detecting unit 400 can detect the driving units in one pixel structure 300 as normal working and non-normal working, so as to obtain the number of non-normal working driving units, and the compensation unit 500 provides compensation voltage to the normal working driving units according to the number of non-normal working driving units detected by the detecting unit 400; assuming that there are X driving units in one pixel structure 300, when the number of non-normal working driving units is greater than X / 2, it is judged that the pixel structure 300 needs to stop working, and the first control electrode 360 and the second control electrode 370 do not provide voltage signals so that the pixel structure 300 is in constant dark display; when the number of non-normal working driving units is less than or equal to X / 2, the compensation unit 500 adjusts the size of the compensation voltage according to the proportion of the number of non-normal working driving units in the total number of driving units, so that the pixel structure 300 can rely on the normal working driving units to drive the light-emitting material layer 330 to emit light with the same brightness as that of the pixel structure 300 in normal display; the following will be illustrated by taking one pixel structure 300 with 12 driving units as an example; when the pixel structure 300 is in normal display, the luminous brightness of the pixel structure 300 is 100%, and the driving current intensity is 1; when the number of non-normal working driving units is 1, in order to make the luminous brightness of the pixel structure 300 continue to be 100% or close to 100%, the driving current intensity is 1.1 times, and so on. Adjusting the driving current intensity can maintain the luminous brightness of the pixel structure 300 at 100% or close to 100%, until the number of non-normal working driving units exceeds 6, at this time, it is impossible to maintain the luminous brightness of the pixel structure 300 by continuously adjusting the driving current intensity, then the first control electrode 360 and the second control electrode 370 do not provide voltage signals, so that the pixel structure 300 is in constant dark display.

[0041] As Figure 6As shown, in the third embodiment of this application, a display panel 100 is disclosed. A gap region is provided between two adjacent first sub-semiconductors 321. The first conductive layer 310 includes a flat portion 311 disposed between the substrate 200 and the first semiconductor layer 320 and a gap portion 312 disposed in the gap region. The gap portion 312 of the first conductive layer 310 is disposed in contact with the light-emitting material layer 330. In this embodiment, in addition to being flatly disposed on the substrate 200 as a connection medium for connecting multiple first sub-semiconductors 321, the first conductive layer 310 is also filled in the gap region between multiple first sub-semiconductors 321, so that the contact between the first conductive layer 310 and the first semiconductor layer 320 is more sufficient. Since the heat dissipation capacity of the first conductive layer 310 is better than that of the air in the gap region, it increases the heat dissipation capacity of the pixel structure 300 to a certain extent. Moreover, the first conductive layer 310 can play a role in blocking and separating the first sub-semiconductors 321 during manufacturing, which facilitates the manufacturing of the first semiconductor layer 320.

[0042] like Figure 7 As shown, as a fourth embodiment of this application, a display device 700 is disclosed. The display device 700 includes a driving circuit 600 and a display panel 100 as described in the above embodiment. The driving circuit 600 drives the display panel 100 to be set.

[0043] The display device of this embodiment not only improves the overall heat dissipation capacity of the pixel structure and extends the service life of the display panel to a certain extent, but also maintains the equal luminous intensity of the light-emitting areas divided on the pixel structure while improving heat dissipation capacity. This prevents display differences caused by differences in luminous intensity among the light-emitting areas. Furthermore, by connecting multiple first sub-semiconductors through the first conductive layer and multiple second sub-semiconductors through the second conductive layer, when a certain driving unit malfunctions or is damaged and cannot be lit, the other driving units can still obtain voltage through the first and second conductive layers to continue working without affecting the display of the display panel.

[0044] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0045] The above are further detailed descriptions of the present application in connection with specific optional embodiments. The present application is not limited to these descriptions. For ordinary skilled people in the art, some simple deductions or replacements made without departing from the spirit of the present application should be considered as falling within the scope of protection of the present application.

Claims

1. A display panel, comprising a substrate and a plurality of pixel structures disposed on the substrate, characterized in that, Each of the pixel structures includes: A first conductive layer is disposed on the light-incident surface of the substrate; A first semiconductor layer is disposed on the side of the first conductive layer away from the substrate; A light-emitting material layer is disposed on the side of the first semiconductor layer away from the first conductive layer; A second semiconductor layer is disposed on the side of the light-emitting material layer away from the first semiconductor layer; The second conductive layer is disposed on the side of the second semiconductor away from the light-emitting material layer; A first control electrode is disposed on the first conductive layer, and the first control electrode is used to energize the first conductive layer; and The second control electrode is disposed on the side of the second conductive layer away from the second semiconductor, and the second control electrode is used to energize the second conductive layer; The first semiconductor layer includes a plurality of spaced-apart first sub-semiconductors, and the second semiconductor layer includes a plurality of spaced-apart second sub-semiconductors. The plurality of first sub-semiconductors and the plurality of second sub-semiconductors are arranged in a one-to-one correspondence to form a plurality of driving units. The first conductive layer supplies power to all the first sub-semiconductors, and the second conductive layer supplies power to all the second sub-semiconductors.

2. The display panel according to claim 1, characterized in that, The light-emitting material layer includes a plurality of spaced-apart light-emitting sub-material bodies, one side of which abuts against the first semiconductor layer and the other side of which abuts against the second semiconductor layer; The number of light-emitting material bodies is the same as the number of driving units, with one light-emitting material body corresponding to one driving unit.

3. The display panel according to claim 1, characterized in that, The display panel further includes a detection unit and a compensation unit. The detection unit is connected to the compensation unit. The detection unit is used to detect whether the driving unit is working properly, and the compensation unit is used to provide compensation voltage to the driving unit. When the detection unit detects that some of the driving units are not operating normally, the compensation unit provides a corresponding compensation voltage to the normally operating driving units according to the number of abnormal driving units.

4. The display panel according to claim 1, characterized in that, A spacer region is provided between two adjacent first sub-semiconductors, and the first conductive layer includes a flat portion disposed between the substrate and the first semiconductor layer and a spacer portion disposed within the spacer region; The spacer portion of the first conductive layer is disposed in contact with the luminescent material layer.

5. The display panel according to claim 1, characterized in that, Any two of the first sub-semiconductors have the same area, and any two of the second sub-semiconductors have the same area.

6. The display panel according to claim 1, characterized in that, The second conductive layer is provided with a plurality of vent holes, and the positions of the plurality of vent holes are configured to correspond to the spacing regions between two adjacent second sub-semiconductors.

7. The display panel according to claim 6, characterized in that, The ventilation holes contain thermoluminescent materials.

8. The display panel according to claim 1, characterized in that, The first conductive layer is a transparent electrode layer, and the second conductive layer is a reflective metal layer.

9. The display panel according to claim 1, characterized in that, The first semiconductor layer is a P-type semiconductor layer, and the second semiconductor layer is an N-type semiconductor layer; or / The first semiconductor layer is an N-type semiconductor layer, and the second semiconductor layer is a P-type semiconductor layer.

10. A display device, characterized in that, It includes a driving circuit and a display panel as described in any one of claims 1 to 9, wherein the driving circuit drives the display panel to be configured.

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