CN113299730A - Display panel and display device - Google Patents

Abstract

The invention provides a display panel and a display device, wherein the display panel comprises a substrate base plate, a first substrate and a second substrate, wherein the substrate base plate comprises a display area and a non-display area; a plurality of first light emitting elements positioned in the first display region; a plurality of first pixel circuits located in the bending region, the first pixel circuits and the second pixel circuits being connected by a first wire; a plurality of second light emitting elements positioned in the second display region; and the plurality of second pixel circuits are positioned in the second display area, and orthographic projections of the plurality of second pixel circuits on the substrate at least partially overlap. The light transmittance of the first display area in the display panel is high, after the display device is assembled, the lighting effect when the optical device transmits a screen for lighting is good, the color cast and the granular sensation of the first display area can be improved, the resolution ratio is high, a transition area with low pixel density is not required to be arranged, and therefore real comprehensive screen display is achieved.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

In recent years, with the progress of technology and the increasing demand of consumers for large-screen mobile phones, full-screen has become one of the hot technologies in the display technology field. The existing full-screen camera technology still has the problems of low transmittance and poor shooting effect, so that the use feeling of a user is poor; and, when setting up camera under the screen, the position at camera place can't realize the display effect of preferred under the screen, also can't realize real comprehensive screen display yet.

Thus, the related art of the existing display panel still needs to be improved.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a display panel having a first display region with high light transmittance, good lighting effect when an optical device is used to collect light through a screen after the display device is assembled, excellent usability, capable of improving color shift and granular sensation of the first display region, high resolution, without providing a transition region with low pixel density, capable of realizing real full-screen display, or making user experience good.

The present invention has been completed based on the following findings and findings:

in the existing technology of the camera under the screen, a transparent area and a transition area are arranged in a camera area of a display panel, wherein the transparent area only keeps an anode, the transition area is provided with a pixel driving circuit for driving the camera area to emit light and a driving circuit for driving a pixel electrode of the transparent area, and the pixel driving circuit arranged in the transition area is connected with the pixel electrode through a transparent lead wire, so that the transmittance of the transparent area is higher. However, due to the arrangement of the pixel driving circuit, the pixel density (PPI) of the transparent region and the transition region is reduced, and the display image of the camera area has certain color cast and granular feel.

In view of the above, in one aspect of the present invention, a display panel is provided. According to an embodiment of the present invention, the display panel includes a substrate base including a display area and a non-display area at least on 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, the non-display area including a bending area; a plurality of first light emitting elements positioned in the first display region; a plurality of first pixel circuits located in the bending region, the plurality of first light emitting elements and the plurality of first pixel circuits being connected by first wires; a plurality of second light emitting elements positioned in the second display region; and the second pixel circuits are positioned in the second display area, and orthographic projections of the second light-emitting elements and the second pixel circuits on the substrate at least partially overlap. The first display area in the display panel has high light transmittance, and the optical device has good lighting effect when lighting is carried out through the screen after the display device is assembled, so that the use performance of the optical device is enhanced; the color cast and the granular sensation of the display picture of the first display area can be improved, the resolution ratio is high, a transition area with low pixel density is not required to be arranged, and therefore real comprehensive screen display is achieved, and user experience is good.

According to an embodiment of the present invention, the bending region includes a first bending region and a second bending region, and the first bending region is located between the first display region and the second bending region; one surface of the substrate base plate positioned in the first bending area is a convex curved surface, one surface of the substrate base plate positioned in the second bending area is a plane, and the plurality of first pixel circuits are arranged on the curved surface of the substrate base plate in the first bending area; or the plurality of first pixel circuits are positioned on the plane of the substrate base plate of the second bending area.

According to an embodiment of the present invention, the first bending region includes a first sub-bending region and a second sub-bending region, the first sub-bending region and the second sub-bending region are disposed at an interval, and the first pixel circuit is located in the first sub-bending region and the second sub-bending region; or the second bending region comprises a third sub-bending region and a fourth sub-bending region, the third sub-bending region and the fourth sub-bending region are arranged at intervals, 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 positioned 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.

According to an embodiment of the present invention, the display panel further includes a plurality of rows of first scan lines and a plurality of rows of second scan lines, the plurality of rows of first scan lines are at least located in the second display region, the plurality of rows of second scan lines are at least located in the bending region, and the plurality of rows of first scan lines and the plurality of rows of second scan lines are electrically connected in a one-to-one correspondence by second conductive lines.

According to the embodiment of the invention, the display panel further comprises a plurality of rows of second data lines, at least part of the plurality of rows of second data lines extends from the second display area to the bending area, and orthographic projections of the plurality of rows of second data lines on the flexible substrate do not overlap with the first display area.

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

According to the embodiment of the invention, an insulating layer is further arranged between the second bending area and the display area, and the first conducting wire is arranged in the insulating layer.

According to the embodiment of the invention, the display device further comprises a driving chip and a flexible circuit board, wherein at least one of the driving chip and the flexible circuit board is arranged in the bending area.

According to an embodiment of the present invention, at least one of the driving chip and the flexible circuit board is disposed on the curved surface of the substrate base plate of the first bending region; or at least one of the driving chip and the flexible circuit board is positioned on the plane of the substrate base plate of the second bending area.

In yet another aspect of the present invention, a display device is provided. According to an embodiment of the present invention, the method includes the above display panel; and an optical device disposed at 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. The optical device of the display device has good lighting effect when lighting is carried out through the screen; the resolution ratio is high, and the transition area with lower pixel density is not required to be arranged, so that the real comprehensive screen display can be realized, and the user experience is good.

Drawings

Fig. 1 is a perspective view showing a cross-sectional structure of a display panel according to an embodiment of the present invention.

Fig. 2 is a cross-sectional perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

Fig. 3 is a cross-sectional perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

Fig. 4 is a schematic diagram showing a partial structure of a display panel according to an embodiment of the present invention.

Fig. 5 is a schematic diagram showing a partial structure of a display panel according to another embodiment of the present invention.

Fig. 6 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 7 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 8 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 9 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 10 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 11 is a schematic diagram showing a partial structure of a display panel in another embodiment of the present invention.

Fig. 12 is a schematic diagram showing a partial structure of a display panel according to another embodiment of the present invention.

Fig. 13 is a schematic cross-sectional view showing a partial structure of a display panel according to another embodiment of the present invention (the cross-sectional structure is a cross-section taken along line AA in fig. 12).

Fig. 14 is a cross-sectional structural perspective view showing a partial structure of a display panel according to another embodiment of the present invention.

Fig. 15 is a perspective view showing a cross-sectional structure of a display panel according to still another embodiment of the present invention.

Fig. 16 is a flow chart illustrating a method for fabricating a display panel according to another embodiment of the invention.

Fig. 17 is a flowchart illustrating a step of providing a flexible substrate having a bending portion according to an embodiment of the invention.

Fig. 18 is a schematic diagram illustrating a plurality of predetermined patterns corresponding to a plurality of flexible substrates defined on a prefabricated panel according to an embodiment of the present invention.

Fig. 19 shows a plan perspective view of a display device of an embodiment of the present invention.

Reference numerals:

2: non-display area 3 a: first light-emitting element 3 b: second light-emitting element 4: the optical device 6: insulating layer 10: display panel 11: first display area 12: second display area 13: pixel electrode 41: first conductive line 41 a: first wire segment 41 b: second wire segment 41 c: third wire segment 42: first scanning line 43: second scanning line 44: second conductive line 45: second data line 52 a: protective layer 52 b: interlayer insulating layer 52 c: first gate insulating layer 52 d: second gate insulating layer 522: a source 523: first gate 524: second gate 525: active layer 526: light-shielding layer 527: drain 528: buffer layer 53: first planarizing layer 55: second planarization layer 100: substrate base plate 110: bending region 111-1: first pixel circuit 111-2: the second pixel circuit 112: first bending region 112 a: first sub-bending region 112 b: second sub-bending region 113: second bending region 113 a: third sub-bending region 113 b: fourth sub-inflection region 114: predetermined pattern 200: at least one of the driving chip and the flexible circuit board 521: first via 551: second via 553: pixel defining layer 531: third via hole

Detailed Description

The following describes embodiments of the present invention in detail. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

In one aspect of the present invention, referring to fig. 1 to 7, according to an embodiment of the present invention, the display panel 10 includes a substrate base 100, the substrate base 100 includes a display area and a non-display area 2 at least located at 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 located in the first display region 11; a plurality of first pixel circuits 111-1 located in the bending region 110, wherein the plurality of first light emitting elements 3a and the plurality of first pixel circuits 111-1 are connected by a first wire 41 (the schematic structural diagram refers to fig. 4 to 7); a plurality of second light emitting elements 3b located in the second display region 12; a plurality of second pixel circuits 111-2 located in the second display area 12, and the plurality of second light emitting elements 3b and the plurality of second pixel circuits 111-2 at least partially overlap in an orthogonal projection of the substrate 100 (refer to fig. 4 to 7 for structural schematic diagrams). Compared with a display panel in the related art, the display panel has the advantages that the bending area is arranged, so that the pixel circuit which is supposed to be arranged in the transition area with lower pixel density is arranged on the bending area, the light transmittance of the first display area in the display panel is high, the lighting effect is good when the optical device is used for lighting through the screen after the display device is assembled, and the use performance of the optical device is enhanced after the display device is assembled; meanwhile, the first pixel circuit is arranged in the bending area, so that color cast and granular sensation of a display picture in the first display area can be improved, and the resolution is high; and because a transition area with lower pixel density is not required to be arranged, the display panel realizes real comprehensive screen display, and the user experience is good.

According to the embodiment of the present invention, it is understood that the first light emitting element and the second light emitting element described above may have the structure of a conventional light emitting element, for example, the structure specifically includes an anode, a light emitting layer, a cathode, and the like, and thus, the description thereof is not repeated.

According to an embodiment of the present invention, referring to fig. 1 to 3, the bending region includes a first bending region 112 and a second bending region 113, the first bending region 112 is located between the first display region 11 and the second bending region 113; one surface of the substrate 100 located in the first bending region 112 is a convex curved surface, one surface of the substrate 100 located in the second bending region 113 is a flat surface, and the plurality of first pixel circuits 111-1 are disposed on the curved surface of the substrate 100 in the first bending region 11 (refer to fig. 3 for a schematic structural diagram); or the plurality of first pixel circuits 111-1 are located on the plane of the substrate 100 of the second bending region 12 (the schematic structural diagram refers to fig. 2), so that the plurality of first pixel circuits 111-1 are located on the plane of the substrate 100 of the second bending region 12 more conveniently, the pixel driving circuits are easier to manufacture, the electrical connection between the pixel driving circuits 111 and the pixel units is more stable, and the display effect of the first display region 11 is better; in addition, the plurality of first pixel circuits 111-1 are located on the plane of the substrate 100 of the second bending region 12, so that light entering the first display region 11 is more difficult to be shielded, the lighting effect of the optical device can be better enhanced, and the use performance of the optical device is better; when the plurality of first pixel circuits 111-1 are disposed on the curved surface of the substrate 100 of the first bending region 11, the display effect of the first display region 11 is better.

According to an embodiment of the present invention, referring to fig. 4 to 7 (it should be noted that, for convenience of description, partial plan views herein are structural schematic views of the display panel in a flattened state, and a bending of a bending region is not shown, and will not be repeated hereinafter, and in addition, in the figures herein, only all the first conductive lines 41 are shown in fig. 4, and only a part of the first conductive lines 41 are shown in other figures herein, it can be understood by those skilled in the art that, although only a part of the first conductive lines 41 are shown in some figures herein, in the display panel of the present application, the first conductive lines 41 are provided between the first light emitting element and the first pixel circuit, and will not be repeated hereinafter), the first bending region may include a first sub-bending region 112a and a second sub-bending region 112b, and the first sub-bending region 112a and the second sub-bending region 112b are disposed at an interval, the first pixel circuit 111-1 is located in the first sub-bending region 112a and the second sub-bending region 112b (the schematic structural diagram refers to fig. 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 disposed at an interval, and the first pixel circuit 111-1 is located in the third sub-bending region 113a and the fourth sub-bending region 113b (the structural schematic diagram refers to fig. 4); or the first pixel circuit 111-1 is located in the first sub-bending region 112a and the fourth sub-bending region 113b (the schematic structural diagram refers to fig. 5); or the first pixel circuit 111-1 is located in the second sub-bending region 112b and the third sub-bending region 113a (the schematic structure diagram refers to fig. 7), so that the display panel does not occupy too much space in the display device after being assembled into the display device; in addition, the electrical connection between the first pixel circuit 111-1 and the first light emitting element 3a is more stable, so that the display effect of the first display region 11 is better; meanwhile, when the display device is assembled, the lighting effect of the optical device can be better enhanced, so that the use performance of the optical device is further improved.

In other embodiments of the present invention, it can be understood that, referring to fig. 8, the display panel only has one first bending region 112 and one second bending region 113, and neither the first bending region 112 nor the second bending region 113 includes a plurality of sub-bending regions, that is, whether the display panel includes a plurality of sub-bending regions or not, which can be set by a person skilled in the art according to actual needs and is not described herein in too much detail; in addition, for convenience of description, in the following figures, the specific structure of the display panel is described by taking an example that neither the first bending region 112 nor the second bending region 113 includes multiple sub-bending regions, and the description is not repeated herein.

According to an embodiment of the present invention, referring to fig. 9, the display panel may further include a plurality of first scan lines 43 and a plurality of second scan lines 42, the plurality of first scan lines 43 are at least located in the second display region 12, the plurality of second scan lines 42 are at least located in the bending region, and the plurality of first scan lines 43 and the plurality of second scan lines 42 are electrically connected in a one-to-one correspondence manner through second wires 44 (it should be noted that, a part of the first scan lines in the figures herein is not shown, and will not be repeated in the following text); and, the first scanning line among the above-mentioned setting mode is difficult for sheltering from first display area to further improve optical device's luminousness, also can improve the colour cast and the graininess in first display area better simultaneously, thereby this wiring mode can realize need not to set up the transition district and place pixel drive circuit, and then realizes real comprehensive screen display, accords with the popular comprehensive screen theory of present generation.

According to an embodiment of the present invention, referring to fig. 10, the display panel further includes a plurality of rows of second data lines 45, at least a portion of the plurality of rows of second data lines 45 extends from the second display region 12 to the bending region, an orthogonal projection of the plurality of rows of second data lines 45 on the flexible substrate does not overlap with the first display region 11, and the wiring manner is capable of driving the pixel units in the first display region 11 to emit light based on a change in the position of the second data lines; in addition, the second data line in the arrangement mode is not easy to shield the first display area, so that the light transmittance of the optical device is further improved, and the color cast and the granular sensation of the first display area can be better.

It is understood that, referring to fig. 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, the plurality of rows of first scan lines 43 are at least located in the second display region 12, the plurality of rows of second scan lines 42 are at least located in the bend region, 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 by second conductive lines 44; the display panel further comprises a plurality of rows of second data lines 45, at least part of the plurality of rows of second data lines 45 extends from the second display area 12 to the bending area, and orthographic projections of the plurality of rows of second data lines 45 on the flexible substrate do not overlap with the first display area 11; the setting mode of above-mentioned first wire, second wire and second data line can coexist, and above-mentioned setting mode is difficult for sheltering from first display area to further improve optical device's luminousness, also can improve the colour cast and the graininess in first display area better simultaneously, thereby this wiring mode can realize need not to set up the transition district and place pixel drive circuit, and then realize real comprehensive screen display, accord with the popular comprehensive screen theory of present generation.

According to an embodiment of the present invention, further, referring to fig. 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 disposed between the first conductive line segment 41a and the third conductive line segment 41 c; wherein the second wire segment 41b is at least partially located in the first bending region. Specifically, referring to fig. 13, the method further includes: a thin film transistor array layer disposed on the first surface of the substrate base plate 100 and having a first via 521 penetrating therethrough, wherein an orthographic projection of the first via 521 on the substrate base plate 100 at least partially overlaps an orthographic projection of the first bending region 112 on the substrate base plate 100; a first planarization layer 53, wherein the first planarization layer 53 is disposed on the first surface and on the surface of the thin film transistor array layer away from the substrate 100; and a second planarization layer 55, wherein the second planarization layer 55 is disposed on a surface of a portion of the first planarization layer 53 away from the substrate 100 and a surface of the second wire segment 41b away from the substrate 100.

According to the embodiment of the present invention, further, the second wire segment 41b is disposed on the surface of the first planarization layer 53 away from the thin film transistor array layer, and an orthographic projection of the second wire segment 41b on the substrate 100 at least partially overlaps with an orthographic projection of the first bending region 112 on the substrate 100, and the second wire segment 41b satisfies at least one of the following conditions: (1) one end of the first wire segment 41a is electrically connected to a second via 551 penetrating through 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 531 penetrating through the first planarization layer 53; a part of the first wire segment 41a is disposed in the second via 551, and the material of the first wire segment 41a is a light-transmitting material (refer to fig. 13 for a schematic structural diagram); (2) one end of the second scanning line is electrically connected with the second scanning line, one end of the second scanning line is positioned at the edge of the first display area, and the second scanning line penetrates through a third through hole in the second planarization layer; the other end is electrically connected with the first scanning line through a fourth via hole penetrating through the first planarization layer (not shown in the figure). Specifically, the transparent material may be indium tin oxide, and of course, those skilled in the art can understand that the transparent material may also be other kinds of transparent conductive materials, which are not described in detail herein. The wiring manner can still drive the pixel units in the first display area to emit light on the basis of the position change of the second conducting wire segment 41 b; in addition, the second wire section 41b in the arrangement mode is not easy to shield the first display area, so that the light transmittance of the optical device is further improved, and meanwhile, the color cast and the granular sensation of the first display area can be better improved, so that the arrangement mode can realize that a transition area is not required to be arranged for placing a pixel driving circuit, further the real comprehensive screen display is realized, and the current popular comprehensive screen concept is met; in addition, due to the arrangement of the transparent electrode layer, the light transmittance in the first display area can be better, the lighting effect of the optical device is further improved, and the service performance of the optical device is better.

According to the embodiments of the present invention, it can be understood that the foregoing thin film transistor array layer may specifically include a structure of a conventional thin film transistor array layer in the related art, and the specific structure of the foregoing thin film transistor array layer is the same as that of the thin film transistor array layer in the related art, and therefore, redundant description is not repeated here.

According to the embodiments of the present invention, it can be understood that, in order to improve the light transmittance of the first display region, in other embodiments of the present invention, a through hole may be further formed on the interlayer insulating layer, the first gate insulating layer, the second gate insulating layer, or the first planarization layer and the second planarization layer in the first display region, or the interlayer insulating layer, the first gate insulating layer, and the second gate insulating layer in the first display region are removed, so as to improve the light transmittance in the first display region.

It should be noted that, in the drawings herein, a driving backplate of LTPS structure is shown, and those skilled in the art can understand that the driving backplate may also be of oxide or LTPO structure, and therefore, redundant description is not repeated here.

In other embodiments of the present invention, referring to fig. 14, an insulating layer 6 is further disposed between the second bending region 112 and the display region, and the first conductive line is disposed in the insulating layer 6, so that the first conductive line can be directly disposed in the insulating layer 6, and is not easily broken because it is not disposed in a bent manner, and the electrical connection between the first pixel driving circuit 111-1 and the light emitting element is more stable, so that the display effect in the first display region is better; meanwhile, after the display device is assembled, the lighting effect of the optical device can be better enhanced, so that the use performance of the optical device is further improved.

According to the embodiment of the invention, referring to fig. 15, the display panel further includes a driving chip and a flexible circuit board, at least one 200 of the driving chip and the flexible circuit board is disposed in the bending region, and the display panel can better realize full-screen display by the structure of the flexible substrate provided with the bending portion. According to the embodiment of the present invention, further, at least one of the driving chip and the flexible circuit board is disposed on the curved surface of the substrate base plate 100 of the first bending region 112; or referring to fig. 15, at least one 200 of the driving chip and the flexible circuit board is located on the plane of the substrate 100 of the second bending region 113, so that the driving chip or the flexible circuit board is more conveniently arranged, and the electrical connection between the driving chip or the flexible circuit board and the display panel is more stable, thereby the display effect of the display panel is better; in addition, through the structure of the flexible substrate provided with the bending part, the display panel can better realize full-screen display.

In another aspect of the present invention, a method of fabricating a display panel is provided. According to an embodiment of the present invention, referring to fig. 16, the method includes:

s100: forming a substrate base plate;

s200: forming a first pixel circuit and a second pixel circuit;

according to the embodiment of the present invention, the arrangement manner of the first pixel circuit and the second pixel circuit is not particularly limited, and redundant description is omitted here. Therefore, the method is simple and convenient to operate, easy to realize and easy for industrial production.

S300: a first light emitting element and a second light emitting element are formed.

According to an embodiment of the present invention, the step of forming the first light emitting element and the second light emitting element may include the steps of forming an anode, a pixel defining layer, a light emitting element, a cathode, a packaging film, and the like, and specific processes thereof may be conventional processes, and thus, redundant description is not repeated herein. Therefore, the method is simple and convenient to operate, easy to realize and easy for industrial production.

S400: and forming a bending area so as to obtain the display panel.

According to an embodiment of the present invention, referring to fig. 17, the step of forming the bending region at S400 further includes:

s410: the method comprises the steps of defining a plurality of preset pattern groups on a prefabricated plate, wherein each preset pattern group comprises two preset patterns, and the two preset patterns in each preset pattern group are arranged in a central symmetry mode.

In accordance with an embodiment of the present invention, as can be appreciated by those skilled in the art, with reference to fig. 18, two of the predetermined patterns in each of the predetermined pattern groups are arranged in a central symmetry arrangement 114; because it cuts out a lot of polylith respectively on a monoblock precast slab when the preparation, because the bending zone in this application, the bending zone also can occupy certain space on precast slab, and the bending zone is different with the width of other parts on the substrate base plate, can produce a large amount of waste materials when cutting precast slab when directly arranging predetermined pattern with polylith substrate base plate according to same direction to can cause precast slab's waste, based on this, a plurality of predetermined pattern groups are drawn out on precast slab through the aforesaid, wherein, every predetermined pattern group includes two predetermined patterns, every two in the predetermined pattern group predetermined pattern is two the setting mode that predetermined pattern is central symmetry and sets up can reduce precast slab's usage space, improves precast slab's utilization efficiency, thereby reduces the cost of manufacture.

S420: cutting the preset pattern;

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 the process conditions and parameters according to actual needs, which is not described herein in detail.

S430: and bending the corresponding part of the bending area on the preset pattern towards one side of the substrate base plate.

According to the embodiment of the present invention, the bending manner, the process conditions, and the parameters of the bending region are not particularly limited, and as long as the bending region is bent toward one side of the substrate base plate, a person skilled in the art can flexibly select the bending region according to actual needs, and redundant description is omitted here.

In summary, according to the embodiments of the present invention, the present invention provides a method for manufacturing a display panel, which is simple and convenient to operate, easy to implement, and easy for industrial production, and can effectively manufacture the display panel, and the manufactured display panel has a high transmittance in the first display region, and after the display device is assembled, the optical device has a good lighting effect when lighting through the screen, so as to enhance the usability of the optical device; the color cast and the granular sensation of the display picture of the first display area can be improved, the resolution ratio is high, a transition area with low pixel density is not required to be arranged, and therefore real comprehensive screen display is achieved, and user experience is good.

In yet another aspect of the present invention, a display device is provided. According to an embodiment of the present invention, the method includes the above-mentioned display panel and an optical device, the optical device is disposed at 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. Referring to fig. 19, the optical device 4 of the display device has a good lighting effect when lighting through the screen; the resolution ratio is high, and the transition area with lower pixel density is not required to be arranged, so that the real comprehensive screen display can be realized, and the user experience is good.

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 sensing element, an ambient light sensor, or a dot matrix projector. Therefore, the lighting device is wide in application range, and can be used for lighting through the screen, so that the lighting effect of the optical device is good, and the use performance of the optical device is enhanced.

According to the embodiment of the invention, the orthographic projection of the optical device on the display area of the display panel is positioned in the first display area of the display panel, which does not affect the orthographic projection of the optical device on the first display area, and the orthographic projection of other non-optical devices on the display area is also included, such as a distance sensor, a loudspeaker, a microphone and the like.

According to an embodiment of the invention, the optics may be arranged on a surface of the display panel facing away from a user. Therefore, the bang area does not need to be arranged in the display device, real comprehensive screen display is achieved, and user experience is good.

According to an embodiment of the present invention, the display device may be a mobile phone, a tablet, a wearable device, a game machine, or the like.

According to the embodiment of the present invention, the display device further includes the structure and components of a conventional display device, which are not described in detail herein.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A display panel, comprising:

the display device comprises a substrate base plate, a first display area and a second display area, wherein the substrate base plate comprises a display area and a non-display area at least positioned on one side of the display area, the display area comprises the first display area and the second display area, the second display area at least partially surrounds the first display area, and the non-display area comprises a bending area;

a plurality of first light emitting elements positioned in the first display region;

a plurality of first pixel circuits located in the bending region, the plurality of first light emitting elements and the plurality of first pixel circuits being connected by first wires;

a plurality of second light emitting elements positioned in the second display region;

and the second pixel circuits are positioned in the second display area, and orthographic projections of the second light-emitting elements and the second pixel circuits on the substrate at least partially overlap.

2. The display panel of claim 1, the bending region comprising a first bending region and a second bending region, the first bending region being located between the first display region and the second bending region;

one surface of the substrate base plate positioned in the first bending area is a convex curved surface, one surface of the substrate base plate positioned in the second bending area is a plane, and the plurality of first pixel circuits are arranged on the curved surface of the substrate base plate in the first bending area; or

The plurality of first pixel circuits are located on the plane of the substrate base plate of the second bending area.

3. The display panel of claim 2, 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 from each other, and the first pixel circuit is located in the first sub-bending region and the second sub-bending region; or

The second bending region comprises a third sub-bending region and a fourth sub-bending region, the third sub-bending region and the fourth sub-bending region are arranged at intervals, 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 positioned in the first sub-bending area and the fourth sub-bending area; or

The first pixel circuit is located in the second sub-bending region and the third sub-bending region.

4. The display panel of claim 1, further comprising a plurality of rows of first scan lines and a plurality of rows of second scan lines, the plurality of rows of first scan lines being at least in the second display region, the plurality of rows of second scan lines being at least in the bend region, the plurality of rows of first scan lines and the plurality of rows of second scan lines being electrically connected in a one-to-one correspondence by second conductive lines.

5. The display panel according to claim 1, further comprising a plurality of rows of second data lines, at least a portion of the plurality of rows of second data lines extending from the second display area to the bending area, and an orthographic projection of the plurality of rows of second data lines on the flexible substrate does not overlap with the first display area.

6. The display panel according to claim 4, the first wire further comprising a first wire segment, a second wire segment, and a third wire segment, the first wire segment being electrically connected to the first light-emitting element, the third wire segment being electrically connected to the first pixel circuit, the second wire segment being disposed 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.

7. The display panel according to claim 2, further provided with an insulating layer, the first conductive line being provided in the insulating layer.

8. The display panel of claim 2, further comprising a driving chip and a flexible circuit board, at least one of the driving chip and the flexible circuit board being disposed at the bending region.

9. The display panel according to claim 8, at least one of the driving chip and the flexible circuit board being disposed on a curved surface of the substrate base plate of the first bending region; or at least one of the driving chip and the flexible circuit board is positioned on the plane of the substrate base plate of the second bending area.

10. A display device, comprising:

the display panel of any one of claims 1 to 9; and

an optical device disposed at 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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