Display panel and display device

Abstract

The present invention provides a display panel and a display device. The display panel includes a substrate, including a display area and a non-display area, wherein the display area includes a first display area and a second display area, and the non-display area includes a bending area; a plurality of first light-emitting elements located in the first display area; a plurality of first pixel circuits located in the bending area, the first and second light-emitting elements being connected by a first conductive line; a plurality of second light-emitting elements located in the second display area; and a plurality of second pixel circuits located in the second display area, the orthographic projections of the first and second light-emitting elements on the substrate at least partially overlapping. The first display area of the display panel has high light transmittance. When assembled into a display device, the optical device provides excellent lighting effects when transmitting light through the screen. The display panel also improves color cast and graininess in the first display area, achieves high resolution, and eliminates the need for a transition area with lower pixel density, thereby achieving a true full-screen display.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular, to a display panel and a display device. Background Art

[0002] In recent years, with technological advancements and increasing consumer demand for larger-screen phones, full-screen displays have become a hot topic in the display technology field. Currently, full-screen displays are achieved through the use of under-screen cameras, which place the camera inside the display panel. However, existing under-screen camera technology still suffers from low transmittance and poor image quality, resulting in a poor user experience. Furthermore, when installing an under-screen camera, the camera's location does not allow for optimal display quality, thus preventing the realization of a true full-screen display.

[0003] Therefore, the existing display panel related technologies still need to be improved. Summary of the Invention

[0004] The present invention aims to at least partially address one of the technical problems in the related art. To this end, one object of the present invention is to provide a display panel having a first display area with high light transmittance, good lighting effects when the optical device transmits light through the screen after being assembled into a display device, excellent performance, improved color cast and graininess in the first display area, high resolution, no need for a transition area with lower pixel density, and capable of achieving a true full-screen display or providing a good user experience.

[0005] The present invention is completed by the inventor based on the following knowledge and discovery:

[0006] Existing under-screen camera technology uses a transparent region and a transition region within the camera area of the display panel. The transparent region retains only the anode, while the transition region houses a pixel driver circuit that drives the camera area's light and a driver circuit that drives the pixel electrodes in the transparent region. The pixel driver circuit in the transition region is connected to the pixel electrodes via transparent wires, resulting in a higher transmittance in the transparent region. However, the presence of the pixel driver circuit reduces the pixel density (PPI) in both the transparent and transition regions, and the display in the camera area can exhibit color shift and graininess.

[0007] In view of this, in one aspect, the present invention provides a display panel. According to an embodiment of the present invention, the display panel includes a substrate, the substrate including a display area and a non-display area located at least to one side of the display area, the display area including a first display area and a second display area, the second display area at least partially surrounding the first display area, and the non-display area including a bending area; a plurality of first light-emitting elements located in the first display area; a plurality of first pixel circuits located in the bending area, the plurality of first light-emitting elements and the plurality of first pixel circuits being connected via first wires; a plurality of second light-emitting elements located in the second display area; and a plurality of second pixel circuits located in the second display area, wherein the orthographic projections of the plurality of second light-emitting elements and the plurality of second pixel circuits on the substrate at least partially overlap. The first display area in the display panel has high light transmittance. After being assembled into a display device, the optical device has good lighting effect when collecting light through the screen, thereby enhancing the performance of the optical device. The display panel can also improve the color cast and graininess of the image displayed in the first display area, has high resolution, and does not require a transition area with lower pixel density, thereby achieving a true full-screen display and a good user experience.

[0008] According to an embodiment of the present invention, the bending zone includes a first bending zone and a second bending zone, the first bending zone is located between the first display zone and the second bending zone; one surface of the base substrate located in the first bending zone is a convex curved surface, and one surface of the base substrate located in the second bending zone is a flat surface, and the multiple first pixel circuits are arranged on the curved surface of the base substrate in the first bending zone; or the multiple first pixel circuits are located on the flat surface of the base substrate in the second bending zone.

[0009] According to an embodiment of the present invention, the first bending zone includes a first sub-bending zone and a second sub-bending zone, the first sub-bending zone and the second sub-bending zone are spaced apart, and the first pixel circuit is located in the first sub-bending zone and the second sub-bending zone; or the second bending zone includes a third sub-bending zone and a fourth sub-bending zone, the third sub-bending zone and the fourth sub-bending zone are spaced apart, and the first pixel circuit is located in the third sub-bending zone and the fourth sub-bending zone; or the first pixel circuit is located in the first sub-bending zone and the fourth sub-bending zone; or the first pixel circuit is located in the second sub-bending zone and the third sub-bending zone.

[0010] According to an embodiment of the present invention, the display panel further includes multiple rows of first scan lines and multiple rows of second scan lines, the multiple rows of first scan lines are at least located in the second display area, the multiple rows of second scan lines are at least located in the bending area, and the multiple rows of first scan lines and the multiple rows of second scan lines are electrically connected one-to-one through second wires.

[0011] According to an embodiment of the present invention, the display panel further includes multiple columns of second data lines, at least part of the multiple columns of second data lines extend from the second display area to the bending area, and the orthographic projections of the multiple columns of second data lines on the flexible substrate do not overlap with the first display area.

[0012] According to an embodiment of the present invention, the first wire further includes a first wire segment, a second wire segment and a third wire segment, the first wire segment is electrically connected to the first light-emitting element, the third wire segment is electrically connected to the first pixel circuit, and the second wire segment is arranged between the first wire segment and the third wire segment; wherein, the second wire segment is at least partially located in the first bending area.

[0013] According to an embodiment of the present invention, an insulating layer is further provided between the second bending area and the display area, and the first conductive line is provided in the insulating layer.

[0014] According to an embodiment of the present invention, a driving chip and a flexible circuit board are further included, and at least one of the driving chip and the flexible circuit board is arranged in the bending area.

[0015] According to an embodiment of the present invention, at least one of the driving chip and the flexible circuit board is arranged on the curved surface of the base substrate in the first bending area; or at least one of the driving chip and the flexible circuit board is located on the plane of the base substrate in the second bending area.

[0016] In another aspect, the present invention provides a display device. According to an embodiment of the present invention, the method includes the aforementioned display panel; and an optical device, wherein the optical device is disposed on one side of the display panel, and an orthographic projection of the optical device on the display panel is located within a first display area of the display panel. The optical device of this display device provides excellent lighting effects when transmitting light through the screen; it has high resolution and eliminates the need for a transition zone with lower pixel density, thereby achieving a true full-screen display and providing a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view showing a cross-sectional structure of a display panel according to an embodiment of the present invention is shown.

[0018] Figure 2 A cross-sectional perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

[0019] Figure 3 A cross-sectional perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

[0020] Figure 4A schematic diagram showing a partial structure of a display panel according to an embodiment of the present invention.

[0021] Figure 5 A schematic diagram showing a partial structure of a display panel according to another embodiment of the present invention.

[0022] Figure 6 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0023] Figure 7 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0024] Figure 8 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0025] Figure 9 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0026] Figure 10 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0027] Figure 11 A schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

[0028] Figure 12 A schematic diagram showing a partial structure of a display panel according to another embodiment of the present invention.

[0029] Figure 13 A schematic cross-sectional view of a display panel structure in another embodiment of the present invention is shown (the cross-sectional view is Figure 12 (section obtained by cutting through line AA in the figure).

[0030] Figure 14 A cross-sectional perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

[0031] Figure 15 A perspective view showing the cross-sectional structure of a display panel according to yet another embodiment of the present invention is shown.

[0032] Figure 16 A schematic flow chart of a method for manufacturing a display panel according to another embodiment of the present invention is shown.

[0033] Figure 17 The figure shows a flow chart of the steps of providing a flexible substrate having a bending portion according to one embodiment of the present invention.

[0034] Figure 18A schematic diagram showing a method of demarcating a plurality of predetermined patterns corresponding to a plurality of flexible substrates on a prefabricated plate according to an embodiment of the present invention is shown.

[0035] Figure 19 A plan perspective view showing a display device according to an embodiment of the present invention is shown.

[0036] Reference numerals:

[0037] 2: Non-display area 3a: First light-emitting element 3b: Second light-emitting element 4: Optical device 6: Insulating layer 10: Display panel 11: First display area 12: Second display area 13: Pixel electrode 41: First wire 41a: First wire segment 41b: Second wire segment 41c: Third wire segment 42: First scan line 43: Second scan line 44: Second wire 45: Second data line 52a: Protective layer 52b: Interlayer insulating layer 52c: First gate insulating layer 52d: Second gate insulating layer 522: Source electrode 523: First gate electrode 524: Second gate electrode 525: Active layer 52 6: Light shielding layer 527: Drain 528: Buffer layer 53: First planarization layer 55: Second planarization layer 100: Base substrate 110: Bending area 111-1: First pixel circuit 111-2: Second pixel circuit 112: First bending area 112a: First sub-bending area 112b: Second sub-bending area 113: Second bending area 113a: Third sub-bending area 113b: Fourth sub-bending area 114: Predetermined pattern 200: At least one of the driver chip and the flexible circuit board 521: First via hole 551: Second via hole 553: Pixel defining layer 531: Third via hole DETAILED DESCRIPTION

[0038] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0039] In one aspect of the present invention, according to an embodiment of the present invention, referring to Figures 1 to 7 The display panel 10 includes a base substrate 100, the base substrate 100 includes a display area and a non-display area 2 located at least on one side of the display area, the display area includes a first display area 11 and a second display area 12, the second display area 12 at least partially surrounds the first display area 11, and the non-display area 2 includes a bending area 110; a plurality of first light-emitting elements 3a are located in the first display area 11; a plurality of first pixel circuits 111-1 are located in the bending area 110, and the plurality of first light-emitting elements 3a and the plurality of first pixel circuits 111-1 are connected via a first wire 41 (see the structural schematic diagram for details). Figures 4 to 7); a plurality of second light-emitting elements 3b, located in the second display area 12; a plurality of second pixel circuits 111-2, located in the second display area 12, and the orthographic projections of the plurality of second light-emitting elements 3b and the plurality of second pixel circuits 111-2 on the base substrate 100 at least partially overlap (see the structural schematic diagram Figures 4 to 7 By providing the above-mentioned bending region, compared with the display panel in the related art, the pixel circuit that should be provided in the transition region with lower pixel density is provided on the bending region, thereby making the light transmittance of the first display region of the display panel high. After being assembled into a display device, the optical device has a good lighting effect when transmitting light through the screen, thereby enhancing the performance of the optical device after being assembled into the display device. At the same time, the first pixel circuit is provided in the bending region, which can also improve the color cast and graininess of the display image in the first display region, and has high resolution. Moreover, since there is no need to provide a transition region with lower pixel density, the display panel realizes a true full-screen display and a good user experience.

[0040] According to the embodiment of the present invention, it can be understood that the first light-emitting element and the second light-emitting element mentioned above can both have the structure of a conventional light-emitting element, for example, they specifically include an anode, a light-emitting layer and a cathode, etc., which will not be repeated here.

[0041] According to an embodiment of the present invention, referring to Figures 1 to 3 The bending area includes a first bending area 112 and a second bending area 113, wherein the first bending area 112 is located between the first display area 11 and the second bending area 113; a surface of the base substrate 100 located in the first bending area 112 is a convex curved surface, and a surface of the base substrate 100 located in the second bending area 113 is a flat surface, and the plurality of first pixel circuits 111-1 are arranged on the curved surface of the base substrate 100 in the first bending area 11 (see the structural schematic diagram for details). Figure 3 ); or the plurality of first pixel circuits 111-1 are located on the plane of the base substrate 100 in the second bending region 12 (see the structural diagram for reference Figure 2), thereby, it is more convenient for the multiple first pixel circuits 111-1 to be located on the plane of the base substrate 100 in the second bending area 12, and it is also easier to manufacture the pixel driving circuit, and the electrical connection between the pixel driving circuit 111 and the pixel unit will be more stable, thereby making the display effect of the first display area 11 better; in addition, the multiple first pixel circuits 111-1 are located on the plane of the base substrate 100 in the second bending area 12, which is less likely to block the light entering the first display area 11, thereby better enhancing the lighting effect of the optical device and making the optical device have better performance; and when the multiple first pixel circuits 111-1 are arranged on the curved surface of the base substrate 100 in the first bending area 11, the display effect of the first display area 11 is better.

[0042] According to an embodiment of the present invention, referring to Figures 4 to 7 (It should be noted that, for the convenience of description, some of the plan views in this article are schematic diagrams of the structure of the display panel in a flat state, and do not show the bending of the bending area, which will not be repeated in the following text; in addition, in the figures in this article, only Figure 4 All first wires 41 are shown in the figure, and only part of the first wires 41 are shown in other figures of this article. Those skilled in the art can understand that although only part of the first wires 41 are shown in some figures of this article, in the display panel of the present application, there is a first wire 41 between the first light-emitting element and the first pixel circuit, which will not be repeated in the following text), the first bending area may include a first sub-bending area 112a and a second sub-bending area 112b, the first sub-bending area 112a and the second sub-bending area 112b are arranged at intervals, and the first pixel circuit 111-1 is located in the first sub-bending area 112a and the second sub-bending area 112b (see the structural schematic diagram). Figure 6 ); or the second bending region includes a third sub-bending region 113a and a fourth sub-bending region 113b, the third sub-bending region 113a and the fourth sub-bending region 113b are arranged at intervals, and the first pixel circuit 111-1 is located in the third sub-bending region 113a and the fourth sub-bending region 113b (see the structural diagram for reference). Figure 4 ); or the first pixel circuit 111-1 is located between the first sub-bending region 112a and the fourth sub-bending region 113b (see the structural diagram for details). Figure 5 ); or the first pixel circuit 111-1 is located between the second sub-bending region 112b and the third sub-bending region 113a (see the structural diagram for details). Figure 7), thus, the display panel will not occupy too much space in the display device after being assembled into a display device; in addition, the electrical connection between the first pixel circuit 111-1 and the first light-emitting element 3a will be more stable, thereby making the display effect of the first display area 11 better; at the same time, when it is assembled into a display device, it can also better enhance the lighting effect of the optical device, so that the performance of the optical device is further improved.

[0043] In other embodiments of the present invention, it can be understood that, referring to Figure 8 In this display panel, there is only one first bending zone 112 and one second bending zone 113. Neither the first bending zone 112 nor the second bending zone 113 includes multiple sub-bending zones. That is to say, whether to include multiple sub-bending zones can be set by technical personnel in this field according to actual needs, and will not be repeated here. In addition, for the convenience of description, in the following figures of this article, the specific structure of the display panel is explained by taking the example that neither the first bending zone 112 nor the second bending zone 113 includes multiple sub-bending zones, and will not be repeated in the following text.

[0044] According to an embodiment of the present invention, referring to Figure 9 The display panel may further include a plurality of rows of first scan lines 43 and a plurality of rows of second scan lines 42, wherein the plurality of rows of first scan lines 43 are at least located in the second display area 12, and the plurality of rows of second scan lines 42 are at least located in the bending area, and the plurality of rows of first scan lines 43 and the plurality of rows of second scan lines 42 are electrically connected one-to-one through second wires 44 (it should be noted that some of the first scan lines are not shown in the figures of this article and will not be repeated in the following text). This wiring method can change the position of the first scan line without changing the circuit connection relationship between the first scan line and the second scan line, so that the first display area and the second display area can still be driven and displayed by the first scan line and the second scan line; and the first scan line in the above-mentioned setting method is not easy to block the first display area, thereby further improving the transmittance of the optical device, and at the same time, it can also better improve the color deviation and graininess of the first display area, so that this wiring method can achieve the purpose of placing the pixel driving circuit without setting a transition area, thereby realizing a true full-screen display, which is in line with the contemporary popular full-screen concept.

[0045] According to an embodiment of the present invention, referring to Figure 10The display panel further includes a plurality of columns of second data lines 45, at least a portion of which extends from the second display area 12 to the bending area. The orthographic projections of the plurality of columns of second data lines 45 on the flexible substrate do not overlap with the first display area 11. The above wiring method can still drive the pixel units in the first display area 11 to emit light based on the change in the position of the second data lines. Moreover, the second data lines in the above arrangement are not likely to block the first display area, thereby further improving the light transmittance of the optical device and also better reducing the color shift and graininess of the first display area.

[0046] It is understandable that, referring to Figure 11 The display panel may further include a plurality of rows of first scan lines 43 and a plurality of rows of second scan lines 42, wherein the plurality of rows of first scan lines 43 are located at least in the second display area 12, and the plurality of rows of second scan lines 42 are located at least in the bending area, and the plurality of rows of first scan lines 43 and the plurality of rows of second scan lines 42 are electrically connected in a one-to-one correspondence via second conductive lines 44; the display panel may further include a plurality of columns of second data lines 45, at least a portion of the plurality of columns of second data lines 45 extending from the second display area 12 to the bending area, and the orthographic projections of the plurality of columns of second data lines 45 on the flexible substrate do not overlap with the first display area 11; the arrangement of the first conductive lines, the second conductive lines, and the second data lines may coexist, and the arrangement is not likely to block the first display area, thereby further improving the light transmittance of the optical device, and also better improving the color cast and graininess of the first display area. Thus, this wiring arrangement can achieve a true full-screen display without setting a transition area for placing the pixel driving circuit, in line with the contemporary popular full-screen concept.

[0047] According to an embodiment of the present invention, further referring to Figure 12 The first conductive line may further include a first conductive line segment 41a, a second conductive line segment 41b, and a third conductive line segment 41c. The first conductive line segment 41a is electrically connected to the first light-emitting element 3a, the third conductive line segment 41c is electrically connected to the first pixel circuit 111-1, and the second conductive line segment 41b is arranged between the first conductive line segment 41a and the third conductive line segment 41c; wherein the second conductive line segment 41b is at least partially located in the first bending area. Specifically, referring to Figure 13, further comprising: a thin film transistor array layer, the thin film transistor array layer being arranged on the first surface of the base substrate 100, and having a first via hole 521 running through the thin film transistor array layer, the orthographic projection of the first via hole 521 on the base substrate 100 at least partially overlapping with the orthographic projection of the first bending region 112 on the base substrate 100; a first planarization layer 53, the first planarization layer 53 being arranged on the first surface and on the surface of the thin film transistor array layer away from the base substrate 100; and a second planarization layer 55, the second planarization layer 55 being arranged on a portion of the surface of the first planarization layer 53 away from the base substrate 100 and on the surface of the second wire segment 41b away from the base substrate 100.

[0048] According to an embodiment of the present invention, further, the second wire segment 41b is arranged on the surface of the first planarization layer 53 away from the thin film transistor array layer, and the orthographic projection of the second wire segment 41b on the base substrate 100 is at least partially overlapped with the orthographic projection of the first bending area 112 on the base substrate 100, and the second wire segment 41b meets at least one of the following conditions: (1) one end is electrically connected to the first wire segment 41a through a second via hole 551 penetrating the second planarization layer 55; the other end is electrically connected to the third wire segment (not shown in the figure) through a third via hole 531 penetrating the first planarization layer 53; part of the first wire segment 41a is arranged in the second via hole 551, and the material of the first wire segment 41a is a light-transmitting material (see the structural schematic diagram). Figure 13 ); (2) one end is electrically connected to the second scanning line located at the edge of the first display area through a third via hole penetrating the second planarization layer; the other end is electrically connected to the first scanning line through a fourth via hole penetrating the first planarization layer (not shown in the figure). Specifically, the light-transmitting material can be indium tin oxide. Of course, those skilled in the art can understand that it can also be other types of light-transmitting conductive materials, which will not be described in detail here. The above wiring method can still drive the pixel unit in the first display area to emit light based on the change in the position of the second wire segment 41b; and the second wire segment 41b in the above setting method is not easy to block the first display area, thereby further improving the transmittance of the optical device, and at the same time can better improve the color deviation and graininess of the first display area, so that the wiring method can achieve the purpose of placing the pixel driving circuit without setting a transition area, thereby realizing a true full-screen display, which is in line with the contemporary popular full-screen concept; in addition, due to the provision of a transparent electrode layer, it can make the light transmittance in the first display area better, further improving the lighting effect of the optical device, and making its performance better.

[0049] According to an embodiment of the present invention, it can be understood that the thin film transistor array layer mentioned above can specifically include the structure of a conventional thin film transistor array layer in the related art, and its specific structure is the same as the specific structure of the thin film transistor array layer in the related art, which will not be elaborated here.

[0050] According to the embodiments of the present invention, it can be understood that in order to improve the transmittance of the first display area, in other embodiments of the present invention, through holes can be formed on the interlayer insulating layer, the first gate insulating layer, the second gate insulating layer or the first planarization layer, the second planarization layer in the first display area, or the interlayer insulating layer, the first gate insulating layer, the second gate insulating layer in the first display area can be removed, thereby improving the transmittance in the first display area.

[0051] According to an embodiment of the present invention, it should be noted that, in the figures of this article, a driving backplane of an LTPS structure is shown. Those skilled in the art will understand that it may also be a driving backplane of an oxide or LTPO structure, and no further details will be given here.

[0052] In other embodiments of the present invention, referring to Figure 14 An insulating layer 6 is further provided between the second bending area 112 and the display area, and the first conductive wire is provided in the insulating layer 6. Thus, the first conductive wire can be directly provided in the insulating layer 6. Since it is not provided in a bent manner, it is not easy to break. The electrical connection between the first pixel driving circuit 111-1 and the light-emitting element will also be more stable, so that the display effect in the first display area is better; at the same time, after it is assembled into a display device, the lighting effect of the optical device can be better enhanced, so that the performance of the optical device is further improved.

[0053] According to an embodiment of the present invention, referring to Figure 15 , further comprising a driver chip and a flexible circuit board, at least one of the driver chip and the flexible circuit board 200 being arranged in the bending area, and by setting the structure of the flexible substrate in the bending portion, the display panel can better achieve full-screen display. According to an embodiment of the present invention, further, at least one of the driver chip and the flexible circuit board is arranged on the curved surface of the base substrate 100 in the first bending area 112; or referring to Figure 15 At least one of the driver chip and the flexible circuit board 200 is located on the plane of the base substrate 100 in the second bending area 113. Therefore, it is more convenient to arrange the driver chip or the flexible circuit board in this way, and the electrical connection between the driver chip or the flexible circuit board and the display panel will be more stable, thereby making the display effect of the display panel better; in addition, by setting the structure of the flexible substrate in the above-mentioned bending portion, the display panel can better achieve full-screen display.

[0054] In another aspect of the present invention, the present invention provides a method for manufacturing a display panel. Figure 16 , the method comprising:

[0055] S100: forming a substrate;

[0056] S200: forming a first pixel circuit and a second pixel circuit;

[0057] According to the embodiment of the present invention, the configuration of the first pixel circuit and the second pixel circuit is not particularly limited and will not be described in detail herein.

[0058] S300: forming a first light-emitting element and a second light-emitting element.

[0059] According to an embodiment of the present invention, the steps of forming the first light-emitting element and the second light-emitting element may include forming an anode, a pixel defining layer, a light-emitting element, a cathode, and an encapsulation film. The specific processes can all be conventional processes and will not be described in detail here. As a result, the operation is simple, convenient, easy to implement, and easy to industrialize.

[0060] S400: forming a bending region to obtain the display panel.

[0061] According to an embodiment of the present invention, referring to Figure 17 The step of forming the bending zone in step S400 further includes:

[0062] S410: Delineating a plurality of predetermined pattern groups on a prefabricated plate, wherein each predetermined pattern group includes two predetermined patterns, and the two predetermined patterns in each predetermined pattern group are centrally symmetrically arranged.

[0063] According to the embodiments of the present invention, those skilled in the art can understand that referring to Figure 18 , the two predetermined patterns in each predetermined pattern group are centrally symmetrically arranged 114; since many pieces are cut out from a whole prefabricated plate during its production, due to the bending zone in this application, the bending zone will also occupy a certain space on the prefabricated plate, and the width of the bending zone is different from that of other parts on the substrate. When the predetermined patterns of multiple substrates are directly arranged in the same direction, a large amount of waste will be generated when the prefabricated plate is cut, which will cause waste of the prefabricated plate. Based on this, multiple predetermined pattern groups are delineated on the prefabricated plate through the above-mentioned method, wherein each predetermined pattern group includes two predetermined patterns, and the two predetermined patterns in each predetermined pattern group are centrally symmetrically arranged, which can reduce the use space of the prefabricated plate, improve the utilization efficiency of the prefabricated plate, and thus reduce the production cost.

[0064] S420: Cutting the predetermined pattern;

[0065] According to the embodiment of the present invention, the process conditions and parameters of the cutting process are not particularly limited, and those skilled in the art can flexibly select them according to actual needs, which will not be elaborated here.

[0066] S430: bending a portion of the bending area corresponding to the predetermined pattern toward one side of the base substrate.

[0067] According to an embodiment of the present invention, the bending method, process conditions and parameters of the bending zone are not particularly limited. As long as the bending zone is bent toward one side of the base substrate, technicians in this field can make flexible choices based on actual needs and will not go into details here.

[0068] In summary, according to an embodiment of the present invention, the present invention proposes a method for manufacturing a display panel. The method is simple, convenient, easy to implement, and easy to industrialize. The display panel described above can be effectively manufactured, and the transmittance of the first display area in the manufactured display panel is high. After being assembled into a display device, the optical device has a good lighting effect when transmitting light through the screen, thereby enhancing the performance of the optical device; it can also improve the color deviation and graininess of the display image in the first display area, has high resolution, and does not require setting a transition zone with lower pixel density, thereby realizing a true full-screen display and a good user experience.

[0069] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the method includes the above-mentioned display panel and an optical device, wherein the optical device is arranged on one side of the display panel, and the orthographic projection of the optical device on the display panel is located in the first display area of the display panel. Figure 19 The optical device 4 of the display device has a good lighting effect when it is illuminated through the screen; the resolution is high, and there is no need to set a transition zone with low pixel density, thereby realizing a true full-screen display and a good user experience.

[0070] According to an embodiment of the present invention, the optical device 4 may include a front camera, an infrared sensor, an infrared lens, a floodlight sensor, an ambient light sensor, or a dot projector, etc. Thus, the optical device 4 has a wide range of applications and can collect light through the screen, thereby improving the lighting effect of the optical device and enhancing the performance of the optical device.

[0071] According to an embodiment of the present invention, the orthographic projection of the optical device on the display area of the display panel is located in the first display area of the display panel, which does not affect the orthographic projections of other non-optical devices on the display area within the first display area, such as a distance sensor, a speaker, and a microphone.

[0072] According to an embodiment of the present invention, the optical device can be arranged on the surface of the display panel away from the user. Thus, there is no need to set a notch area in the display device, thereby achieving a true full-screen display and a good user experience.

[0073] According to an embodiment of the present invention, the display device may be a mobile phone, a tablet computer, a wearable device, a game console, etc.

[0074] According to an embodiment of the present invention, the display device also includes structures and components of a conventional display device, which will not be described in detail here.

[0075] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0076] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0077] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0078] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A display panel, comprising: a base substrate, the base substrate comprising a display area and a non-display area located at least to one side of the display area, the display area comprising a first display area and a second display area, the second display area at least partially surrounding the first display area, the non-display area comprising a bending area, the bending area comprising a first bending area and a second bending area, the first bending area being located between the first display area and the second bending area, a surface of the base substrate located in the first bending area being a convex curved surface, and a surface of the base substrate located in the second bending area being a flat surface; A plurality of first light-emitting elements are located in the first display area; a plurality of first pixel circuits disposed on the curved surface of the base substrate in the first bending region; or on the flat surface of the base substrate in the second bending region, the plurality of first light-emitting elements and the plurality of first pixel circuits being connected via a first conductive wire, wherein the first conductive wire comprises a first conductive wire segment, a second conductive wire segment, and a third conductive wire segment, the first conductive wire segment being electrically connected to the first light-emitting element, the third conductive wire segment being electrically connected to the first pixel circuit, the second conductive wire segment being disposed between the first conductive wire segment and the third conductive wire segment, and the second conductive wire segment being at least partially located in the first bending region; a plurality of second light-emitting elements, located in the second display area; A plurality of second pixel circuits are located in the second display area, and the orthographic projections of the plurality of second light-emitting elements and the plurality of second pixel circuits on the base substrate at least partially overlap.

2. The display panel according to claim 1 , wherein the first bending region comprises a first sub-bending region and a second sub-bending region, the first sub-bending region and the second sub-bending region are spaced apart, and the first pixel circuit is located in the first sub-bending region and the second sub-bending region; or The second bending region includes a third sub-bending region and a fourth sub-bending region, the third sub-bending region and the fourth sub-bending region are spaced apart, and the first pixel circuit is located in the third sub-bending region and the fourth sub-bending region; or The first pixel circuit is located in the first sub-bending region and the fourth sub-bending region; or The first pixel circuit is located in the second sub-bending region and the third sub-bending region.

3. The display panel according to claim 1, further comprising a plurality of rows of first scan lines and a plurality of rows of second scan lines, wherein the plurality of rows of first scan lines are located at least in the second display area, and the plurality of rows of second scan lines are located at least in the bending area, and the plurality of rows of first scan lines and the plurality of rows of second scan lines are electrically connected one-to-one through second conductive wires.

4. The display panel according to claim 1 further comprises a plurality of columns of second data lines, at least part of the plurality of columns of the second data lines extending from the second display area to the bending area, and the orthographic projections of the plurality of columns of the second data lines on the base substrate do not overlap with the first display area. 5 . The display panel according to claim 1 , further comprising an insulating layer, wherein the first conductive line is disposed in the insulating layer. 6 . The display panel according to claim 1 , further comprising a driving chip and a flexible circuit board, at least one of the driving chip and the flexible circuit board being disposed in the bending area.

7. The display panel according to claim 6, wherein at least one of the driving chip and the flexible circuit board is arranged on the curved surface of the base substrate in the first bending area; or at least one of the driving chip and the flexible circuit board is located on the plane of the base substrate in the second bending area.

8. A display device comprising: The display panel according to any one of claims 1 to 7; and An optical device is provided on one side of the display panel, and an orthographic projection of the optical device on the display panel is located in a first display area of the display panel.

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