CN115359723A

CN115359723A - Display panel and display device

Info

Publication number: CN115359723A
Application number: CN202211048528.7A
Authority: CN
Inventors: 傅景杰
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-18
Anticipated expiration: 2042-08-30
Also published as: CN115359723B

Abstract

The display panel comprises a first display area and a second display area which can be bent along a folding shaft, and the display panel comprises a bottom film, and a display substrate, a first optical adhesive layer, a polaroid and a second optical adhesive layer which are sequentially arranged on the bottom film; the base film and the second optical adhesive layer are respectively provided with a first through hole, a fifth through hole and are communicated to form an opening; on a section which is vertical to the bottom film and is vertical to the folding shaft, the opening comprises a first side edge which is far away from the folding shaft and a second side edge which is close to the folding shaft, and the second side edge comprises a first subsection to a fifth subsection which are respectively positioned at different through holes; at least one of the second subsection to the fifth subsection is positioned on one side of the first subsection far away from the folding axis. In the scheme provided by this embodiment, at least one of the second subsegments to the fifth subsegments is arranged on one side of the first subsegment close to the folding axis, so that at least a film layer does not block or reduces the blocking of the first through hole during folding, and the view of the first through hole is prevented from being affected.

Description

Display panel and display device

Technical Field

The present disclosure relates to display technologies, and particularly to a display panel and a display device.

Background

With the upgrading and upgrading speed of electronic devices becoming faster, the requirements for high integration and high performance of electronic devices such as mobile phones and watches, which use Organic Light-Emitting Diode (OLED) screens as display components, become higher and higher, and the requirements for volume and size become smaller and smaller, and the development of full-screen screens also becomes a trend of display screens such as mobile phones and watches. Punching a hole in an Active Area (AA) is one way to achieve an increase in screen occupation ratio. In recent years, products using foldable display screens are becoming more and more widely used. When the folding display screen is bent for use, the effective display area Hole (AA Hole) has a light scattering phenomenon, and the imaging effect is influenced.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the disclosure provides a display panel and a display device, which improve the imaging effect.

The embodiment of the present disclosure provides a display panel, which includes a first display area and a second display area, where the first display area and the second display area may be bent along a folding axis located between the first display area and the second display area, and the display panel includes a bottom film, and a display substrate, a first optical adhesive layer, a polarizer, and a second optical adhesive layer sequentially disposed on the bottom film; the bottom film is provided with a first through hole, the display substrate is provided with a second through hole, the first optical adhesive layer is provided with a third through hole, the polarizer is provided with a fourth through hole, the second optical adhesive layer is provided with a fifth through hole, and the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole are communicated to form a hole; on a cross section perpendicular to the base film and perpendicular to the folding axis, the opening includes a first side edge far away from the folding axis and a second side edge close to the folding axis, and the second side edge includes a first subsection located at the first through hole, a second subsection located at the second through hole, a third subsection located at the third through hole, a fourth subsection located at the fourth through hole, and a fifth subsection located at the fifth through hole; at least one of the second subsection, the third subsection, the fourth subsection and the fifth subsection is positioned on one side of the first subsection, which is close to the folding axis.

In an exemplary embodiment, the second sub-section is located at a side of the first sub-section close to the folding axis, the third sub-section is located at a side of the second sub-section close to the folding axis, the fourth sub-section is located at a side of the third sub-section close to the folding axis, and the fifth sub-section is located at a side of the fourth sub-section close to the folding axis.

In an exemplary embodiment, on a plane parallel to the base film, an orthographic projection of the first through hole includes a first boundary on a side of the folding axis close to a symmetry axis of the orthographic projection of the first through hole, an orthographic projection of the second through hole includes a second boundary on a side of the symmetry axis close to the folding axis, an orthographic projection of the third through hole includes a third boundary on a side of the symmetry axis close to the folding axis, an orthographic projection of the fourth through hole includes a fourth boundary on a side of the symmetry axis close to the folding axis, an orthographic projection of the fifth through hole includes a fifth boundary on a side of the symmetry axis close to the folding axis, a distance D between at least one target boundary and the first boundary along a radial direction of the first through hole is greater than or equal to θ/180 pi t, t is a distance between a surface of a film layer of the through hole to which the target boundary belongs and the base film, θ is a preset angle, θ is greater than or equal to 0, and the symmetry axis is parallel to the folding axis.

In an exemplary embodiment, the θ is 90 to 135 degrees.

In an exemplary embodiment, the first side includes an eleventh sub-segment located in the first through hole, a twelfth sub-segment located in the second through hole, a thirteenth sub-segment located in the third through hole, a fourteenth sub-segment located in the fourth through hole, and a fifteenth sub-segment located in the fifth through hole, and the eleventh sub-segment, the twelfth sub-segment, the thirteenth sub-segment, the fourteenth sub-segment, and the fifteenth sub-segment are aligned along a direction perpendicular to the bottom film.

In an exemplary embodiment, the display panel further includes a protective film disposed on a side of the second optical adhesive layer away from the bottom film, the protective film is provided with a sixth through hole, the sixth through hole forms a part of the opening, the second side further includes a sixth sub-section located in the sixth through hole, and the sixth sub-section is located on a side of the fifth sub-section close to the folding axis.

In an exemplary embodiment, the display panel further includes a touch layer disposed between the first optical adhesive layer and the polarizer, the touch layer is provided with a seventh through hole, the seventh through hole forms a part of the opening, the second side further includes a seventh sub-segment located at the seventh through hole, and the seventh sub-segment is located at a side of the third sub-segment close to the folding axis; the fourth subsection is positioned at one side of the seventh subsection, which is close to the folding axis.

In an exemplary embodiment, the display substrate includes an organic light emitting diode display substrate.

The embodiment of the disclosure provides a display device, which includes the display panel described in any of the above embodiments.

In an exemplary embodiment, the display device further includes a camera, and an orthographic projection of the camera is located inside the orthographic projection of the opening on a plane parallel to the display panel.

The display panel comprises a first display area and a second display area, wherein the first display area and the second display area can be bent along a folding shaft positioned between the first display area and the second display area; the bottom film is provided with a first through hole, the display substrate is provided with a second through hole, the first optical adhesive layer is provided with a third through hole, the polarizer is provided with a fourth through hole, the second optical adhesive layer is provided with a fifth through hole, and the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole are communicated to form an opening; on a cross section perpendicular to the base film and perpendicular to the folding axis, the opening includes a first side edge far away from the folding axis and a second side edge close to the folding axis, and the second side edge includes a first subsection located at the first through hole, a second subsection located at the second through hole, a third subsection located at the third through hole, a fourth subsection located at the fourth through hole, and a fifth subsection located at the fifth through hole; at least one of the second subsection, the third subsection, the fourth subsection and the fifth subsection is positioned on one side, close to the folding axis, of the first subsection. In the solution provided by this embodiment, at least one of the second subsection 22, the third subsection 23, the fourth subsection 24, and the fifth subsection 25 is located on one side of the first subsection 21 close to the folding axis P, so that at least a film layer does not block the first through hole or blocks the first through hole less during folding, and the view of the first through hole is prevented from being affected.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Other aspects will be apparent upon reading and understanding the attached figures and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic plan view of a display panel according to an embodiment;

fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment;

fig. 3 is a schematic diagram illustrating a film layer dislocation of a display panel according to an embodiment;

fig. 4 is a schematic cross-sectional view of a display panel provided in an embodiment of the disclosure;

fig. 5 is a schematic plan view of a display panel provided in an embodiment of the present disclosure;

FIG. 6 is a schematic plan view of a via provided in an exemplary embodiment;

FIG. 7 is a schematic cross-sectional view of a display substrate provided in accordance with another exemplary embodiment;

FIG. 8 is a schematic plan view of the display substrate shown in FIG. 7;

FIG. 9 is a schematic cross-sectional view of a display substrate provided in accordance with another exemplary embodiment;

FIG. 10 is a schematic plan view of the display substrate shown in FIG. 9;

FIG. 11 is a schematic diagram of a display device provided in an exemplary embodiment;

fig. 12 is a flowchart of a method for manufacturing a display panel according to an exemplary embodiment.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the case of conflict, the embodiments of the present disclosure and the features of the embodiments may be arbitrarily combined with each other.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

In the drawings, the size of each component, the thickness of layers, or regions may be exaggerated for clarity. Therefore, the embodiments of the present disclosure are not necessarily limited to the dimensions, and the shapes and sizes of the respective components in the drawings do not reflect a true scale. Further, the drawings schematically show ideal examples, and the embodiments of the present disclosure are not limited to the shapes or numerical values shown in the drawings.

The ordinal numbers such as "first", "second", "third", etc., in this disclosure are provided to avoid confusion among the constituent elements, and do not indicate any order, number, or importance.

In the present disclosure, for convenience, terms indicating orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used to explain positional relationship of constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. The positional relationship of the components is changed as appropriate in accordance with the direction in which each component is described. Therefore, the words described in the disclosure are not limited thereto, and may be replaced as appropriate.

In this disclosure, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically stated or limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, "parallel" means a state in which an angle formed by two straight lines is-10 ° or more and 10 ° or less, and therefore, includes a state in which the angle is-5 ° or more and 5 ° or less. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and therefore includes a state in which the angle is 85 ° or more and 95 ° or less.

In the present disclosure, "film" and "layer" may be interchanged with one another. For example, a "conductive layer" may be sometimes replaced with a "conductive film". Similarly, the "insulating film" may be replaced with an "insulating layer".

The phrase "the forward projection of B is within the range of the forward projection of a" in the present disclosure means that the boundary of the forward projection of B falls within the boundary range of the forward projection of a, or the boundary of the forward projection of a overlaps with the boundary of the forward projection of B.

When the folding screen is folded and displayed, the module can slightly move between the stacked layers, and the influence from the middle folding position to the left and right sides is increased. Therefore, the film layer at the edge of the opening (AA HOLE) of the display area may be dislocated to block the view of the camera, thereby causing the phenomenon of light scattering and affecting the shooting effect. In the embodiment of the present disclosure, the module film layer at the edge of the AA HOLE is compensated in design.

Fig. 1 is a schematic plan view of a display panel provided in an embodiment of the present disclosure. As shown in fig. 1, the display panel provided in this embodiment includes a first display area 100 and a second display area 200, the display panel can be bent along a folding axis P between the first display area 100 and the second display area 200, and the first display area 100 can include an opening 10. The camera 8 can be arranged at the position corresponding to the opening 10. Only one opening 10 is shown in fig. 1, but the disclosed embodiment is not limited thereto, and a plurality of openings 10 may be provided. For example, in an exemplary embodiment, the opening 10 may be provided in both the first display area 100 and the second display area 200. The shape of the opening 10 shown in fig. 1 is circular, but the disclosed embodiments are not limited thereto and may be square, oval, and the like.

In an exemplary embodiment, the display panel may include, but is not limited to, an OLED display panel, a Quantum-dot Light Emitting diode (QLED) display panel, and the like.

Fig. 2 is a schematic cross-sectional view of the display panel shown in fig. 1 along direction AA'. As shown in fig. 2, the display panel may include, in a direction perpendicular to the display panel and perpendicular to the folding axis P: bottom film (bottom film) 11 sets up display substrate 12 on bottom film 11, sets up display substrate 12 keeps away from the first optical cement layer 13 of bottom film 11 one side sets up and keeps away from at first optical cement layer 13 the polaroid 14 of bottom film 11 one side sets up polaroid 14 is kept away from the second optical cement layer 15 of bottom film 11 one side sets up second optical cement layer 15 is kept away from the apron 20 of bottom film 11 one side, bottom film 11 is kept away from display substrate 12 one side is provided with camera 8. The opening 10 penetrates through the bottom film 11, the display substrate 12, the first optical adhesive layer 13, the polarizer 14 and the second optical adhesive layer 15. In this embodiment, the edges of the film layers may be aligned in the opening 10.

Fig. 3 is a schematic cross-sectional view of the display panel shown in fig. 2 along the AA' direction after being folded. As shown in fig. 3, after the display panel is folded, the film layers (including the display substrate 12, the first optical adhesive layer 13, the polarizer 14, and the second optical adhesive layer 15) are dislocated in the direction X away from the folding axis P, so as to block the view of the camera 8, resulting in poor image capturing effect. It can be seen that the further away from the base film 11 the more the film layers are dislocated.

Fig. 4 is a schematic cross-sectional view of the display panel shown in fig. 5 along direction AA'. Fig. 5 is a schematic plan view of a display panel according to an exemplary embodiment. Fig. 6 is a schematic plan view of fig. 5 after a plurality of through holes are tiled. As shown in fig. 4, 5, and 6, the display panel may include a first display area 100 and a second display area 200, the first display area 100 and the second display area 200 may be bent along a folding axis P, and the first display area 100 may include an opening 10. In a direction perpendicular to the display surface of the display panel, the display panel provided in this embodiment may include: basement membrane 11 sets up display substrate 12 on the basement membrane 11 sets up display substrate 12 keeps away from the first optical cement layer 13 of basement membrane 11 one side sets up first optical cement layer 13 keeps away from basement membrane 11 one side polaroid 14 sets up polaroid 14 keeps away from the second optical cement layer 15 of basement membrane 11 one side sets up second optical cement layer 15 keeps away from the apron 20 of basement membrane 11 one side. First through-hole 101 has been seted up to basement membrane 11, display substrate 12 has seted up second through-hole 102, third through-hole 103 has been seted up to first optics glue film 13, fourth through-hole 104 has been seted up to polaroid 14, fifth through-hole 105 has been seted up to the second optics glue film, first through-hole 101, second through-hole 102, third through-hole 103, fourth through-hole 1054, fifth through-hole 105 link up and form via hole 10. In a cross-section perpendicular to the base film 11 and to the folding axis P, the opening 10 may include a first side remote from the folding axis P and a second side close to the folding axis P, and the second side includes a first subsection 21 located at the first through hole 101, a second subsection 22 located at the second through hole 102, a third subsection 23 located at the third through hole 103, a fourth subsection 24 located at the fourth through hole, and a fifth subsection 25 located at the fifth through hole; at least one of said second subsection 22, said third subsection 23, said fourth subsection 24 and said fifth subsection 25 is located at a side of said first subsection 21 close to said folding axis P.

The folding axis P may be a solid folding axis, or, alternatively, there may be no solid folding axis, only indicating that the first display area 100 and the second display area 200 are folded along the direction indicated by the folding axis P.

In the solution provided by this embodiment, at least one of the second subsection 22, the third subsection 23, the fourth subsection 24, and the fifth subsection 25 is located on one side of the first subsection 21 close to the folding axis P, so that at least a film layer does not block the first through hole or blocks the first through hole less during folding, and the view of the first through hole is prevented from being affected.

In an exemplary embodiment, the second subsection 22, the third subsection 23, the fourth subsection 24 and the fifth subsection 25 are all located at a side of the first subsection 21 close to the folding axis P, so that the film layer on the bottom film 11 does not block the first through hole or reduces blocking of the first through hole when folded, thereby preventing blocking of light entering the first through hole. However, the embodiment of the present disclosure is not limited to this, and only the subsegment with the partially staggered film layer may be disposed on the side of the first subsection 21 close to the folding axis P, for example, only the fourth subsection 24, the fifth subsection 25 may be disposed on the side of the first subsection 21 close to the folding axis P, and so on.

In an exemplary embodiment, the second subsection 22 may be located at a side of the first subsection 21 close to the folding axis P, the third subsection 23 may be located at a side of the second subsection 22 close to the folding axis P, the fourth subsection 24 may be located at a side of the third subsection 23 close to the folding axis P, and the fifth subsection 25 may be located at a side of the fourth subsection 24 close to the folding axis P. According to the scheme provided by the embodiment, the farther the film layer is away from the bottom film, the larger the dislocation is during folding, so that the farther the sub-section of the through hole of the film layer located farther away from the bottom film is away from the first sub-section, the larger dislocation of the film layer located farther away can be offset during folding, and the shielding of the view field of the first through hole is reduced. However, the embodiments of the present disclosure are not limited thereto, and only some of the sub-segments may be arranged to meet the above requirements. For example, the fourth subsegment 24 is located on the third subsegment 23 near the folding axis P, the fifth subsegment 25 is located on the fourth subsegment 24 near the folding axis P, and the second subsegment 22 and the third subsegment 23 may be aligned in a direction perpendicular to the base film 11. I.e. the second subsection 22, the third subsection 23 and the first subsection 21 are at the same distance in a direction parallel to the base film 11.

In an exemplary embodiment, on a plane parallel to the bottom film 11, the orthographic projection of the first through hole 101 includes a first boundary 31 located on a side of a symmetry axis Q of the orthographic projection of the first through hole 101 close to the folding axis P, the orthographic projection of the second through hole 102 includes a second boundary 32 located on a side of the symmetry axis Q close to the folding axis P, the orthographic projection of the third through hole 103 includes a third boundary 33 located on a side of the symmetry axis Q close to the folding axis P, the orthographic projection of the fourth through hole 104 includes a fourth boundary 34 located on a side of the symmetry axis Q close to the folding axis P, the orthographic projection of the fifth through hole 105 includes a fifth boundary 35 located on a side of the symmetry axis Q close to the folding axis P, at least one of the second boundary 32 to the fifth boundary 35 has a distance D between a target boundary and a surface of a through hole of the first boundary 31 in a radial direction of the first through hole 101 greater than or equal to θ/180 pi t, t is a distance between a surface of a film of the through hole where the through hole of the target boundary is far from the bottom film 11 and the bottom film 11 is greater than 0 θ, and the folding axis P is equal to 0, and the folding axis P is parallel to the predetermined angle, where Q is greater than 0. In the embodiment of the present disclosure, when the folding angle of the first display area 100 and the second display area 200 is θ, the dislocation distance between the target film and the base film is θ/180 × 2 pi × t, and therefore, when the folding angle is smaller than or equal to θ, the dislocation distance does not exceed θ/180 × 2 pi × t, and thus, the view field is not affected. For example, when θ is 180 degrees, the shift distance does not exceed θ/180 × 2 pi × t when the folding angle is 180 degrees or less, and thus the field of view is not affected, and when the folding angle supported by the display panel is 180 degrees or less and θ is 180 degrees, the display panel can be used arbitrarily within the range of the folding angle supported by the display panel, and the field of view is not blocked. The folding angle is 180-an included angle formed between the display surface where the first display area is located and the display surface where the second display area is located. For example, when the first display area and the second display area are not folded, an included angle formed between the display surface where the first display area is located and the display surface where the second display area is located is 180 degrees, and the folding angle is 0, and when the first display area and the second display area are completely folded (the first display area is bent over the second display area), an included angle formed between the display surface where the first display area is located and the display surface where the second display area is located is 0 degree, and the folding angle is 180 degrees.

In an exemplary embodiment, a distance D1= θ/180 × 2 pi × t1 between the second boundary 32 and the first boundary 31 along the radial direction of the first through hole 101, where t1 is a distance between a surface of the display substrate 12, where the second through hole 102 to which the second boundary 32 belongs, far from the bottom film 11 and the bottom film 11, that is, a thickness of the display substrate 12 along a direction perpendicular to the bottom film 11.

In an exemplary embodiment, a distance D2= θ/180 × 2 pi × t2 between the third boundary 33 and the first boundary 31 along the radial direction of the first through hole 101, where t2 is a distance between a surface of the first optical adhesive layer 13, away from the bottom film 11, where the third through hole 103 to which the third boundary 33 belongs is located and the bottom film 11, that is, a sum of a thickness of the display substrate 12 along a direction perpendicular to the bottom film 11 and a thickness of the first optical adhesive layer 13 along a direction perpendicular to the bottom film 11.

In an exemplary embodiment, a distance D3= θ/180 × 2 pi × t3 between the fourth boundary 34 and the first boundary 31 along the radial direction of the first through hole 101, where t3 is a distance from the surface of the polarizer 14, where the fourth through hole 104 to which the fourth boundary 34 belongs, to the bottom film 11, that is, a sum of a thickness of the display substrate 12 along a direction perpendicular to the bottom film 11, a thickness of the first optical adhesive layer 13 along a direction perpendicular to the bottom film 11, and a thickness of the polarizer 14 along a direction perpendicular to the bottom film 11.

In an exemplary embodiment, a distance D4= θ/180 × 2 pi × t4 between the fifth boundary 35 and the first boundary 31 along the radial direction of the first through hole 101, where t4 is a distance between the surface of the second optical adhesive layer 15, where the fifth through hole 105 to which the fifth boundary 35 belongs, far from the bottom film 11 and the bottom film 11, that is, a sum of a thickness of the display substrate 12 along a direction perpendicular to the bottom film 11, a thickness of the first optical adhesive layer 13 along a direction perpendicular to the bottom film 11, a thickness of the polarizer 14 along a direction perpendicular to the bottom film 11, and a thickness of the second optical adhesive layer 15 along a direction perpendicular to the bottom film 11.

In an exemplary embodiment, the θ may be 90 to 135 degrees. For example, when θ is 90 degrees, the user uses the display panel, and when the folding angle is 90 degrees or less, the view of the first through hole is not affected. When theta is 135 degrees, when a user uses the display panel, and the folding angle is smaller than or equal to 135 degrees, the visual field of the first through hole is not influenced. The folding angle of 90 degrees to 135 degrees can satisfy user's demand, consequently, can set up in this within range the dislocation distance D can, avoid the dislocation between the rete too big to improve and show the homogeneity.

In an exemplary embodiment, the first side may include an eleventh sub-section 51 located at the first through hole 101, a twelfth sub-section 52 located at the second through hole 102, a thirteenth sub-section 53 located at the third through hole 103, a fourteenth sub-section 54 located at the fourth through hole 104, and a fifteenth sub-section 55 located at the fifth through hole 105, and the eleventh sub-section 51, the twelfth sub-section 52, the thirteenth sub-section 53, the fourteenth sub-section 54, and the fifteenth sub-section 55 are aligned along a direction perpendicular to the bottom film 11. That is, orthographic projections of the eleventh subsegment 51, the twelfth subsegment 52, the thirteenth subsegment 53, the fourteenth subsegment 54 and the fifteenth subsegment 55 on the base film 11 may overlap. According to the scheme provided by the embodiment, the film layer moves towards the direction far away from the folding shaft during folding, so that the view of the first through hole cannot be blocked after the first side edge far away from the folding shaft moves, and the first side edge can be aligned. However, the embodiments of the disclosure are not limited thereto, and the first side edges may not be aligned as long as the film layer on the bottom film does not block the view of the first through hole after the display panel is folded.

Fig. 5 is a schematic diagram of a display panel according to an exemplary embodiment, and fig. 6 is a schematic diagram of a tiling of a plurality of through holes in the display panel shown in fig. 5. As shown in fig. 5 and 6, in a plane parallel to the base film 11, the orthographic projection of the first through hole 101 includes an eleventh boundary 41 located on a side of the symmetry axis Q away from the folding axis P, the orthographic projection of the second through hole 102 includes a twelfth boundary 42 located on a side of the symmetry axis Q away from the folding axis P, the orthographic projection of the third through hole 103 includes a thirteenth boundary 43 located on a side of the symmetry axis Q away from the folding axis P, the orthographic projection of the fourth through hole 104 includes a fourteenth boundary 44 located on a side of the symmetry axis Q away from the folding axis P, the orthographic projection of the fifth through hole 105 includes a fifteenth boundary 45 located on a side of the symmetry axis Q away from the folding axis P, and the eleventh boundary 41, the twelfth boundary 42, the thirteenth boundary 43, and the fourteenth boundary 44 fall within the fifteenth boundary 45, which is a part of the fifteenth boundary 45. However, the disclosed embodiment is not limited thereto, and the twelfth boundary 42 may be aligned with the second boundary 32 along the symmetry axis Q, the thirteenth boundary 43 may be aligned with the third boundary 33 along the symmetry axis Q, the fourteenth boundary 44 may be aligned with the fourth boundary 34 along the symmetry axis Q, and the fifteenth boundary 45 may be aligned with the fifth boundary 35 along the symmetry axis Q. The planar shapes of the through holes shown in fig. 5 and 6 are merely examples, and the embodiments of the present disclosure are not limited thereto, and may be other shapes, such as an ellipse, a square, and the like.

In an exemplary embodiment, the base film 11 is, for example, a heat dissipation film.

Fig. 7 is a schematic cross-sectional view of the display panel shown in fig. 8 along direction AA'. Fig. 8 is a schematic plan view of a display panel according to another exemplary embodiment. As shown in fig. 7, the display panel provided in this embodiment may include: the display device comprises a bottom film 11, a display substrate 12, a first optical adhesive layer 13, a polarizer 14 and a second optical adhesive layer 15 which are arranged in sequence; and the protection film 16 is disposed on the second optical adhesive layer 15 and far away from the bottom film 11, the protection film 16 is provided with a sixth through hole 106, the sixth through hole 106 forms a part of the opening 10 (i.e., the sixth through hole 106 is communicated with the first through hole 101, the second through hole 102, the third through hole 103, the fourth through hole 104 and the fifth through hole 105), the second side edge may further include a sixth subsection 26 located at the sixth through hole 106, and the sixth subsection 26 may be located at a side of the fifth subsection 25 close to the folding axis P. In an exemplary embodiment, a cover plate 20 may be disposed on a side of the protective film 16 away from the base film 11.

In an exemplary embodiment, as shown in fig. 8, on a plane parallel to the bottom film 11, an orthogonal projection of the sixth through hole 106 includes a sixth boundary 36 located on a side of the symmetry axis Q close to the folding axis P, a distance D5 between the sixth boundary 36 and the first boundary 31 along a radial direction of the first through hole 101 is greater than or equal to θ/180 × 2 pi t5, and t5 is a distance between a surface of the protective film 16 where the sixth through hole 106 is located and the bottom film 11, that is, a sum of a thickness of the display substrate 12 along a direction perpendicular to the bottom film 11, a thickness of the first optical adhesive layer 13 along a direction perpendicular to the bottom film 11, a thickness of the polarizer 14 along a direction perpendicular to the bottom film 11, a thickness of the second optical adhesive layer 15 along a direction perpendicular to the bottom film 11, and a thickness of the protective film 16 along a direction perpendicular to the bottom film 11.

In an exemplary embodiment, as shown in fig. 7, the first side may include a sixteenth sub-segment 56 located at the sixth through hole 106, and the eleventh sub-segment 51, the twelfth sub-segment 52, the thirteenth sub-segment 53, the fourteenth sub-segment 54, the fifteenth sub-segment 55, and the sixteenth sub-segment 56 may be aligned along a direction perpendicular to the bottom film 11.

Fig. 9 is a schematic cross-sectional view of the display panel shown in fig. 10 along direction AA'. Fig. 10 is a schematic plan view of a display panel according to another exemplary embodiment. As shown in fig. 9, the display panel provided in this embodiment may include: base film 11, display substrate 12, the first optical cement layer 13 that set gradually set up and set up first optical cement layer 13 is kept away from the touch-control layer 17 of base film 11 one side sets gradually touch-control layer 17 is kept away from the second optical cement layer 15 and the apron 20 of base one side, touch-control layer 17 is provided with seventh through-hole 107, seventh through-hole 107 constitutes the partly (seventh through-hole 107 and first through-hole 101, second through-hole 102, third through-hole 103, fourth through-hole 104, fifth through-hole 105 link up promptly) of trompil 10, the second side can also be including being located the seventh subsection 27 of seventh through-hole 107, seventh subsection 27 can be located third subsection 23 is close to folding axis P one side, fourth subsection 24 can be located seventh subsection 27 is close to folding axis P one side. In the present embodiment, the touch layer 17 is provided, and in another exemplary embodiment, the touch layer 17 may be integrated in the display substrate 22.

In an exemplary embodiment, as shown in fig. 10, on a plane parallel to the base film 11, an orthogonal projection of the seventh through hole 107 includes a seventh boundary 37 located on a side of the symmetry axis Q close to the folding axis P, a distance D6 between the sixth boundary 37 and the first boundary 31 along a radial direction of the first through hole 101 is greater than or equal to θ/180 × 2 pi × t6, and the t6 is a distance between a surface of the touch layer 17 where the seventh through hole 107 is located and the base film 11, that is, a sum of a thickness of the display substrate 12 along a direction perpendicular to the base film 11, a thickness of the first optical adhesive layer 13 along a direction perpendicular to the base film 11, and a thickness of the touch layer 17 along a direction perpendicular to the base film 11. In this embodiment, a radial distance D3' between the fourth boundary 34 and the first boundary 31 along the first through hole 101 is greater than or equal to θ/180 × 2 pi × t3', where t3' is a sum of a thickness of the display substrate 12 in a direction perpendicular to the base film 11, a thickness of the first optical adhesive layer 13 in a direction perpendicular to the base film 11, a thickness of the touch layer 17 in a direction perpendicular to the base film 11, and a thickness of the polarizer 14 in a direction perpendicular to the base film 11. A distance D4' between the fifth boundary 35 and the first boundary 31 along the radial direction of the first through hole 101 is greater than or equal to θ/180 × 2 π × t4', where t4' is a sum of a thickness of the display substrate 12 along a direction perpendicular to the base film 11, a thickness of the first optical adhesive layer 13 along a direction perpendicular to the base film 11, a thickness of the touch layer 17 along a direction perpendicular to the base film 11, a thickness of the polarizer 14 along a direction perpendicular to the base film 11, and a thickness of the second optical adhesive layer 15 along a direction perpendicular to the base film 11.

In an exemplary embodiment, as shown in fig. 9, the first side may include a seventeenth subsection 57 located at the seventh through hole 107, and the eleventh subsection 51, the twelfth subsection 52, the thirteenth subsection 53, the fourteenth subsection 54, the fifteenth subsection 55, and the seventeenth subsection 57 may be aligned along a direction perpendicular to the bottom film 11.

The embodiment of the disclosure also provides a display device, which comprises the display panel of the foregoing embodiment. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

In an exemplary embodiment, as shown in fig. 11, the display device may further include a camera 8, and an orthogonal projection of the camera 8 is located inside an orthogonal projection of the opening 10 on a plane parallel to the display panel. The camera 8 may be disposed outside the opening 10 or inside the opening 10, or partially inside the opening 10 and partially outside the opening 10, which is not limited in the embodiment of the present application. The position of the camera 8 in fig. 11 is only illustrative and may be placed as desired. The disclosed embodiment is not limited thereto, and the opening 10 may be an opening corresponding to other sensors.

Fig. 12 is a flowchart of a method for manufacturing a display panel according to an embodiment of the disclosure. As shown in fig. 12, an embodiment of the present disclosure provides a method for manufacturing a display panel, including:

step 1201, providing a display substrate 12;

step 1202, attaching a first optical adhesive layer 13 to the display substrate 12;

step 1203, attaching a polarizer 14 to one side of the first optical adhesive layer 13 away from the display substrate 12;

step 1204, forming a via hole in a predetermined position, where the via hole penetrates through the display substrate 12, the first optical adhesive layer 13, and the polarizer 14. The display substrate 12, the first optical adhesive layer 13, and the polarizer 14 are respectively provided with a second through hole, a third through hole, and a fourth through hole.

Step 1205, a second optical adhesive layer 15 is attached to one side of the polarizer 14 away from the display substrate 12, and a fifth through hole is formed in the second optical adhesive layer 15.

In this embodiment, the second optical adhesive layer has an opening before the lamination. In another embodiment, the second optical adhesive layer 15 without holes may be used, and holes may be formed after the second optical adhesive layer 15 is attached to the polarizer 14. The embodiments of the present application do not limit this.

In an exemplary embodiment, the preparation method further comprises: and a cover plate 20 is attached to one side of the second optical adhesive layer 15 far away from the display substrate 12.

In an exemplary embodiment, before attaching the cover plate 20 to the side of the second optical adhesive layer 15 away from the display substrate 12, the method further includes mounting a camera 8, and an orthographic projection of the camera 8 is located inside the orthographic projection of the opening on a plane parallel to the display substrate 12.

In an exemplary embodiment, before providing a display substrate 12, the method further comprises: and a base film 11 is attached to one side of the display substrate 12 far away from the first optical adhesive layer 13.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A display panel is characterized by comprising a first display area and a second display area, wherein the first display area and the second display area can be bent along a folding shaft positioned between the first display area and the second display area; the bottom film is provided with a first through hole, the display substrate is provided with a second through hole, the first optical adhesive layer is provided with a third through hole, the polarizer is provided with a fourth through hole, the second optical adhesive layer is provided with a fifth through hole, and the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole are communicated to form a hole; on a cross section perpendicular to the base film and perpendicular to the folding axis, the opening includes a first side edge far away from the folding axis and a second side edge close to the folding axis, and the second side edge includes a first subsection located at the first through hole, a second subsection located at the second through hole, a third subsection located at the third through hole, a fourth subsection located at the fourth through hole, and a fifth subsection located at the fifth through hole; at least one of the second subsection, the third subsection, the fourth subsection and the fifth subsection is positioned on one side of the first subsection, which is close to the folding axis.

2. The display panel according to claim 1, wherein the second sub-segment is located at a side of the first sub-segment close to the folding axis, the third sub-segment is located at a side of the second sub-segment close to the folding axis, the fourth sub-segment is located at a side of the third sub-segment close to the folding axis, and the fifth sub-segment is located at a side of the fourth sub-segment close to the folding axis.

3. The display panel according to claim 2, wherein, in a plane parallel to the base film, the orthographic projection of the first through hole includes a first boundary on a side of a symmetry axis of the orthographic projection of the first through hole close to the folding axis, the orthographic projection of the second through hole includes a second boundary on a side of the symmetry axis close to the folding axis, the orthographic projection of the third through hole includes a third boundary on a side of the symmetry axis close to the folding axis, the orthographic projection of the fourth through hole includes a fourth boundary on a side of the symmetry axis close to the folding axis, the orthographic projection of the fifth through hole includes a fifth boundary on a side of the symmetry axis close to the folding axis, a distance D between at least one target boundary and the first boundary in a radial direction of the first through hole is greater than or equal to θ/180 pi t, t is a distance between a surface of a through hole to which the target boundary belongs and the base film, θ is a predetermined angle, θ is greater than or equal to 180, and the symmetry axis is parallel to the folding axis.

4. The display panel of claim 3, wherein θ is 90 to 135 degrees.

5. The display panel according to claim 1, wherein the first side includes an eleventh sub-section located in the first through hole, a twelfth sub-section located in the second through hole, a thirteenth sub-section located in the third through hole, a fourteenth sub-section located in the fourth through hole, and a fifteenth sub-section located in the fifth through hole, and the eleventh sub-section, the twelfth sub-section, the thirteenth sub-section, the fourteenth sub-section, and the fifteenth sub-section are aligned in a direction perpendicular to the base film.

6. The display panel according to claim 2, wherein the display panel further comprises a protective film disposed on a side of the second optical adhesive layer away from the bottom film, the protective film is provided with a sixth through hole, the sixth through hole forms a part of the opening, the second side further comprises a sixth sub-segment disposed in the sixth through hole, and the sixth sub-segment is disposed on a side of the fifth sub-segment close to the folding axis.

7. The display panel according to claim 2, wherein the display panel further includes a touch layer disposed between the first optical adhesive layer and the polarizer, the touch layer is provided with a seventh through hole, the seventh through hole forms a part of the opening, the second side further includes a seventh sub-segment located in the seventh through hole, and the seventh sub-segment is located on a side of the third sub-segment close to the folding axis; the fourth subsection is positioned at one side of the seventh subsection close to the folding shaft.

8. The display panel according to any one of claims 1 to 7, wherein the display substrate comprises an organic light emitting diode display substrate.

9. A display device comprising the display panel according to any one of claims 1 to 8.

10. The display device of claim 9, further comprising a camera, wherein an orthographic projection of the camera is located inside an orthographic projection of the aperture, in a plane parallel to the display panel.