Display panel, manufacturing method thereof and display device

Abstract

The invention provides a display panel, a manufacturing method thereof and a display device, and relates to the technical field of display. The display panel is provided with a display area, and the display area comprises a light-transmitting area and a non-light-transmitting area; the display panel includes: a transparent substrate; the light path adjusting layer is located on one side of the transparent substrate and comprises a plurality of first dimming structures, and the first dimming structures are used for transmitting incident light entering the non-light-transmitting area from the side, away from the light path adjusting layer, of the transparent substrate to the light-transmitting area; the driving circuit layer is located on the side, away from the transparent substrate, of the light path adjusting layer, the driving circuit layer comprises a plurality of pixel circuits, and the pixel circuits are located in the non-light-transmitting areas respectively; the orthographic projections of the plurality of pixel circuits on the transparent substrate are at least partially overlapped with the orthographic projections of the plurality of first dimming structures on the transparent substrate correspondingly. The display panel is good in perspective effect.

Description

Technical Field

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

[0002] With the development of display technology, the requirements for display panels are getting higher and higher. For example, transparent display panels, in addition to display functions, also need to be able to see what is behind them. At present, all competing companies have begun to lay out in this field, which is one of the important development directions in the future. Transparent display panels are widely used in various fields, such as traffic windows, museum showcases, shopping mall windows, and AR. They can enhance the display effect, make the scene cooler, and enrich the display effect.

[0003] Currently, the display performance of transparent display panels needs to be improved. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a manufacturing method thereof, and a display device to improve the display performance of the display panel in response to the above technical problems.

[0005] In a first aspect, the present application provides a display panel, the display panel having a display area, the display area including a light-transmitting area and a non-light-transmitting area; the display panel includes:

[0006] Transparent substrate;

[0007] An optical path adjustment layer, located on one side of the transparent substrate, comprises a plurality of first dimming structures, wherein the first dimming structures are used to transmit incident light incident from the side of the transparent substrate away from the optical path adjustment layer to the non-light-transmitting area to the light-transmitting area;

[0008] A driving circuit layer is located on a side of the optical path adjustment layer away from the transparent substrate, the driving circuit layer includes a plurality of pixel circuits, each of the pixel circuits is located in the non-light-transmitting area, and the orthographic projections of the plurality of pixel circuits on the transparent substrate correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures on the transparent substrate.

[0009] In one embodiment, an orthographic projection of each of the first dimming structures on the transparent substrate at least partially overlaps with an orthographic projection of each of the pixel circuits on the transparent substrate.

[0010] In one of the embodiments, the first dimming structure is used to refract incident light entering the non-light-transmitting area from a side of the transparent substrate away from the optical path adjustment layer to the light-transmitting area.

[0011] In one of the embodiments, the first dimming structure is used to reflect incident light that is incident on the non-light-transmitting area from a side of the transparent substrate away from the optical path adjustment layer to the light-transmitting area.

[0012] In one embodiment, the first dimming structure includes a prism structure.

[0013] In one of the embodiments, the cross-sectional area of ​​the prism structure gradually increases along the direction from the transparent substrate to the driving circuit layer.

[0014] In one of the embodiments, the cross-section of the prism structure is a target shape, and the target shape is one of a semicircle, an inverted triangle, and an inverted trapezoid.

[0015] In one embodiment, the number of the first dimming structures is less than the number of the pixel circuits.

[0016] In one embodiment, the display panel further includes:

[0017] A first planarization layer, wherein the first planarization layer is located between the transparent substrate and the driving circuit layer, and the first planarization layer is provided with a plurality of first dimming ports, wherein each of the first dimming structures is correspondingly located in each of the first dimming ports.

[0018] In one embodiment, the material of the first planarization layer is a transparent material.

[0019] In one embodiment, the refractive index of the material of the first planarization layer is greater than the refractive index of the material of the first dimming structure.

[0020] In one embodiment, the display panel further includes:

[0021] A second planarization layer, wherein the second planarization layer is located at a side of the driving circuit layer away from the transparent substrate.

[0022] In one embodiment, the material of the second planarization layer is a transparent material.

[0023] In one of the embodiments, the driving circuit layer also includes multiple metal conductive layers, each of which is provided with a metal wiring; the optical path adjustment layer includes multiple second dimming structures, and the orthographic projection of the second dimming structure on the transparent substrate at least partially overlaps with the orthographic projection of the metal wiring on the transparent substrate.

[0024] In one of the embodiments, the driving circuit layer includes a plurality of thin film transistors, and the orthographic projection of the first dimming structure on the transparent substrate covers the orthographic projection of the thin film transistor on the transparent substrate.

[0025] In one embodiment, the display panel further includes:

[0026] A transparent pixel definition layer is provided with a plurality of pixel openings, each of the pixel openings has a corresponding light-emitting element, each of the light-emitting elements is located in the non-transparent area, and the orthographic projections of the plurality of light-emitting elements on the transparent substrate correspond to at least partially overlap with the orthographic projections of the plurality of the first dimming structures on the transparent substrate.

[0027] In a second aspect, the present application further provides a method for manufacturing a display panel, wherein the display panel has a display area, wherein the display area includes a light-transmitting area and a non-light-transmitting area; the method comprises:

[0028] Providing a transparent substrate, wherein the transparent substrate has a first area corresponding to the light-transmitting area and a second area corresponding to the light-non-transmitting area;

[0029] An optical path adjustment layer is formed on one side of the transparent substrate, the optical path adjustment layer includes a plurality of first dimming structures, and the first dimming structures are used to propagate incident light incident from a side of the transparent substrate away from the optical path adjustment layer to the second area to a side of the first area close to the optical path adjustment layer;

[0030] A driving circuit layer is formed on a side of the optical path adjustment layer away from the transparent substrate, the driving circuit layer including a plurality of pixel circuits, the orthographic projection of each pixel circuit on the transparent substrate being located in the second area, and the orthographic projections of the plurality of pixel circuits on the transparent substrate at least partially overlapping with the orthographic projections of the plurality of first dimming structures on the transparent substrate.

[0031] In one embodiment, the method further comprises:

[0032] Forming a transparent pixel definition layer on a side of the driving circuit layer away from the transparent substrate, wherein the transparent pixel definition layer is provided with a plurality of pixel openings;

[0033] A light-emitting element is formed corresponding to each pixel opening, and the orthographic projection of each light-emitting element on the transparent substrate is located in the second area. The orthographic projections of multiple light-emitting elements on the transparent substrate at least partially overlap with the orthographic projections of multiple first dimming structures on the transparent substrate.

[0034] In a third aspect, the present application further provides a display device, comprising the display panel as described in the first aspect.

[0035] The above-mentioned display panel and display device include a transparent substrate, an optical path adjustment layer and a driving circuit layer. The optical path adjustment layer is located on one side of the transparent substrate, and the driving circuit layer is located on the side of the optical path adjustment layer away from the transparent substrate, that is, the optical path adjustment layer is located between the transparent substrate and the driving circuit layer. Since each pixel circuit is located in a non-light-transmitting area, the orthographic projections of multiple pixel circuits on the transparent substrate correspond to at least partially overlap with the orthographic projections of multiple first dimming structures on the transparent substrate. Therefore, the optical path adjustment layer can transmit at least part of the incident light directed to the pixel circuit to the light-transmitting area, thereby increasing the light output of the light-transmitting area, greatly improving the transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel, thereby improving the display performance of the display panel.

[0036] The manufacturing method of the above-mentioned display panel forms an optical path adjustment layer on one side of the transparent substrate and forms a driving circuit layer on the side of the optical path adjustment layer away from the transparent substrate, so that the optical path adjustment layer is located between the transparent substrate and the driving circuit layer. Since the orthographic projection of each pixel circuit on the transparent substrate is located in the second area, the orthographic projections of multiple pixel circuits on the transparent substrate correspond to at least partially overlap with the orthographic projections of multiple first dimming structures on the transparent substrate, and the first dimming structure can transmit at least part of the incident light directed to the pixel circuit to the side of the first area close to the optical path adjustment layer. Corresponding to the display panel manufactured by the manufacturing method of the above-mentioned display panel, the optical path adjustment layer can transmit at least part of the incident light directed to the pixel circuit to the light-transmitting area, thereby increasing the light output of the light-transmitting area, greatly improving the light transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel, thereby improving the display performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] FIG1 is a schematic diagram of a planar structure of a display panel in an embodiment of the present application;

[0039] FIG2 is a schematic diagram of a partial cross-sectional structure of a display panel in an embodiment of the present application;

[0040] 3a to 3d are schematic diagrams of cross-sectional shapes of the first dimming structure in different embodiments of the present application;

[0041] FIG4 is a schematic diagram of a partial cross-sectional structure of a display panel in another embodiment of the present application;

[0042] FIG5 is a schematic diagram of a process of manufacturing a display panel in an embodiment of the present application;

[0043] FIG6 is a schematic flow chart of the production steps corresponding to FIG5 ;

[0044] FIG. 7 is a schematic flow chart of a method for manufacturing a display panel in another embodiment of the present application;

[0045] FIG8 is a schematic flow chart of the production steps corresponding to FIG7;

[0046] Fig. 9 Schematic diagram of the structure of a display device in one embodiment of the present application.

[0047] Description of reference numerals:

[0048] 10-display area, 101-non-light-transmitting area, 1011-light-emitting element, 1012-metal wiring, 102-light-transmitting area, 20-non-display area, 11-transparent substrate, 12-optical path adjustment layer, 121-first dimming structure, 13-driving circuit layer, 131-pixel circuit, 1311-thin film transistor, 14-first planarization layer, 15-second planarization layer, 16-transparent pixel definition layer, 161-pixel opening, 100-display panel, 200-display device. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0051] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0052] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0053] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0054] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another. It will also be understood that expressions used in the singular include plural expressions unless the expression in the singular has an obviously different meaning in the context.

[0055] When a statement such as "at least one (of)..." is located after a list of elements, it modifies the entire list of elements rather than the individual elements in the list. The term "and / or" as used herein includes any and all combinations of one or more related listed items. As used in the application documents, the term "and / or" includes any and all combinations of one or more related listed items. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0056] Electronic or electrical devices and / or any other related devices or components according to the embodiments of the concepts of the present application described herein (for example, a display device including a display panel and a display panel driver, wherein the display panel driver also includes a drive controller, a gate driver, a gamma reference voltage generator, a data driver, and an emission driver) can be implemented using any appropriate hardware, firmware (such as a dedicated integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of these devices may be formed on an integrated circuit (IC) chip or on separate IC chips. In addition, the various components of these devices may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of these devices may be processes or threads that run on one or more processors in one or more computing devices to execute computer program instructions and interact with other system components to perform the various functions described herein. The computer program instructions are stored in a memory that can be implemented in a computing device using standard storage devices (e.g., such as random access memory (RAM). The computer program instructions can also be stored in other non-transitory computer-readable media (e.g., such as CD-ROMs, flash drives, etc.). Moreover, those skilled in the art should recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a particular computing device can be distributed on one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the concepts of the present application.

[0057] Although exemplary embodiments of display modules and display devices including display modules have been specifically described herein, many modifications and variations will be apparent to those skilled in the art. Therefore, it will be understood that display modules and display devices including display modules constructed according to the principles of the present application may be implemented in addition to those specifically described herein. The present application is also defined in the claims and their equivalents.

[0058] As mentioned in the background technology, with the development of display technology, the requirements for display panels are getting higher and higher. For example, transparent display panels, in addition to having display functions, also need to be able to see what is behind them. At present, all competing companies have begun to lay out in this field, which is one of the important development directions in the future. Transparent display panels are widely used in various fields, such as traffic windows, museum showcases, shopping mall windows, and AR, which can enhance the display effect, make the scene cooler, and enrich the display effect.

[0059] The better the display effect of a transparent display screen, the higher the corresponding pixel PPI; the better the perspective effect, that is, the higher the transmittance, the lower the corresponding pixel PPI, the two are contradictory. Therefore, it is difficult for existing transparent display panels to take both of the above points into account at the same time, and the display performance of transparent display panels needs to be improved.

[0060] Based on the above reasons, the present application provides a display panel, as shown in FIG1 , the display panel has a display area 10, and the display area 10 includes a light-transmitting area 102 and a display area 10. As shown in FIG2 , the display panel includes: a transparent substrate 11, an optical path adjustment layer 12 and a driving circuit layer 13.

[0061] The optical path adjustment layer 12 is located on one side of the transparent substrate 11 and includes a plurality of first dimming structures 121 . The first dimming structures 121 are used to propagate incident light entering the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the light-transmitting area 102 .

[0062] It can be understood that the light transmittance of the transparent substrate 11 is relatively high, and the external light can be incident on the light-transmitting area 102 and the non-light-transmitting area 101 through the transparent substrate 11. Since the optical path adjustment layer 12 is located on one side of the transparent substrate 11, by making the first dimming structure 121 at least partially located in the non-light-transmitting area 101, at least part of the incident light in the non-light-transmitting area 101 will be incident on the first dimming structure 121, and the first dimming structure 121 can propagate the incident light incident on the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the light-transmitting area 102, so that at least part of the incident light incident on the non-light-transmitting area 101 can be propagated to the light-transmitting area 102, and emitted from the side of the optical path adjustment layer 12 away from the transparent substrate 11, thereby increasing the light output of the light-transmitting area 102 and improving the perspective effect of the display panel.

[0063] The driving circuit layer 13 is located on the side of the optical path adjustment layer 12 away from the transparent substrate 11. The driving circuit layer 13 includes a plurality of pixel circuits 131. Each pixel circuit 131 is located in the non-light-transmitting area 101. The orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11. Exemplarily, the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11 may correspond to and cover the orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11.

[0064] It should be noted that the first dimming structure 121 can be an integral structure or include multiple substructures, and the shapes of the substructures can be the same or different. The non-light-transmitting area 101 can include multiple pixel display areas 10, and each pixel circuit 131 is correspondingly located in each pixel display area 10. The light-transmitting area 102 includes multiple sub-light-transmitting areas 102, and the pixel display area 10 is located between multiple adjacent sub-light-transmitting areas 102. Among them, the first dimming structure is at least partially located in the pixel display area 10 to propagate at least part of the incident light directed to the corresponding pixel display area 10 to the light-transmitting area 102. The number of the first dimming structure and the number of pixel circuits 131 can be the same or different.

[0065] In applications, the pixel circuit 131 is used to drive the light-emitting element 1011 to emit light, and it is often a light-proof structure. Therefore, in the display area 10, it is mainly the pixel circuit 131 that blocks the passage of external light. By making the optical path adjustment layer 12 need to be located between the transparent substrate 11 and the driving circuit layer 13, and setting a plurality of first dimming structures, the orthographic projections of the plurality of first dimming structures on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11, so that the propagation path of the incident light can be adjusted by the first dimming structure, that is, the direction of the incident light directed to the corresponding pixel display area 10 is changed, and at least part of the incident light directed to the corresponding pixel display area 10 is propagated to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102 and improving the perspective effect of the display panel.

[0066] In addition, the pixel circuit 131 includes multiple thin film transistors. By adjusting the propagation path of the incident light through the optical path adjustment layer 12, the light directed to the thin film transistor can be reduced, thereby reducing the light flux irradiating the thin film transistor, helping to reduce the impact of light on the circuit characteristics of the thin film transistor, and improving the stability of the thin film transistor, thereby improving the stability of the pixel circuit 131 and improving the display effect of the display panel.

[0067] The above-mentioned display panel includes a transparent substrate 11, an optical path adjustment layer 12 and a driving circuit layer 13. The optical path adjustment layer 12 is located on one side of the transparent substrate 11, and the driving circuit layer 13 is located on the side of the optical path adjustment layer 12 away from the transparent substrate 11, that is, the optical path adjustment layer 12 is located between the transparent substrate 11 and the driving circuit layer 13. Since each pixel circuit 131 is respectively located in the non-light-transmitting area, the orthographic projections of the multiple pixel circuits 131 on the transparent substrate 11 correspond to the orthographic projections of the multiple first dimming structures 121 on the transparent substrate 11, which at least partially overlap. Therefore, the optical path adjustment layer 12 can transmit the incident light incident from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the non-light-transmitting area 101 to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102, greatly improving the transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel, thereby improving the display performance of the display panel.

[0068] In one embodiment, the orthographic projection of each first dimming structure on the transparent substrate 11 at least partially overlaps with the orthographic projection of each pixel circuit 131 on the transparent substrate 11 .

[0069] In this embodiment, by making the orthographic projection of each first dimming structure on the transparent substrate 11 correspond to at least partially overlap the orthographic projection of each pixel circuit 131 on the transparent substrate 11, the first dimming structure can adjust the incident light, and at least part of the incident light directed to each pixel circuit 131 can be transmitted to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102 to improve the perspective effect of the display panel. In addition, the amount of incident light received by each pixel circuit 131 is also reduced, which is conducive to improving the stability of each pixel circuit 131, so as to improve the display effect of the display panel.

[0070] In another embodiment, the first dimming structure 121 is used to refract the incident light, which is incident on the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 , to the light-transmitting area 102 .

[0071] In another embodiment, the first dimming structure 121 is used to reflect the incident light, which is incident on the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 , to the light-transmitting area 102 .

[0072] It can be understood that the first dimming structure 121 can change the propagation path of the incident light by reflection or refraction, that is, for the incident light incident to the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12, the first dimming structure 121 can reflect part of the incident light to the light-transmitting area 102, and the first dimming structure 121 can also refract another part of the incident light to the light-transmitting area 102. It should be noted that the first dimming structure 121 is intended to propagate at least part of the incident light directed to the non-light-transmitting area 101 to the light-transmitting area 102, increase the light output of the light-transmitting area 102 to improve the perspective effect of the display panel, and the way to change the direction of the incident light is reflection or refraction, which can be determined according to the layout of the first dimming structure 121, the material of the first dimming structure 121, the shape of the first dimming structure 121, the relative position of the light-transmitting area 102 and the non-light-transmitting area 101, the incident angle of the incident light, and other factors, which are not limited here.

[0073] In another embodiment, the number of the first dimming structures 121 is less than the number of the pixel circuits 131. Then, each first dimming structure 121 can transmit the incident light from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the non-light-transmitting area 101 to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102 and improving the perspective effect of the display panel.

[0074] In one embodiment, the first dimming structure comprises a prism structure.

[0075] The prism structure is a transparent object surrounded by two planes that intersect each other but are not parallel to each other, which can change the direction of light.

[0076] In the present embodiment, by making the first dimming structure include a prism structure, the incident light incident on the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 is transmitted to the light-transmitting area 102 through the prism structure, thereby increasing the light output of the light-transmitting area 102, greatly improving the light transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel, thereby improving the display performance of the display panel.

[0077] In one embodiment, as shown in FIG. 2 to FIG. 4 , the cross-sectional area of ​​the prism structure along the direction from the transparent substrate 11 to the driving circuit layer 13 gradually increases.

[0078] In the present embodiment, by gradually increasing the cross-sectional area of ​​the prism structure along the direction from the transparent substrate 11 to the driving circuit layer 13, the surface of the prism structure facing the transparent substrate 11 is made into a bent surface. On this basis, the prism can change the light propagation direction of the incident light from the transparent substrate 11 away from the optical path adjustment layer 12 to the non-light-transmitting area 101, and propagate the incident light from the transparent substrate 11 away from the optical path adjustment layer 12 to the non-light-transmitting area 101 to the light-transmitting area 102, and emit it from the side of the optical path adjustment layer 12 away from the transparent substrate 11, thereby increasing the light output from the light-transmitting area 102 and improving the perspective effect of the display panel.

[0079] In one embodiment, as shown in FIG. 2 to FIG. 4 , the cross section of the prism structure is a target shape, and the target shape is one of a semicircle, an inverted triangle, and an inverted trapezoid.

[0080] Among them, the prism structure can be a semicircular prism, or it can be an inverted triangle, an inverted trapezoid, an inverted arc-edged triangle, an inverted arc-edged trapezoid, etc., as long as the prism can change the propagation direction of natural light irradiated on the prism and propagate the incident light to the light-transmitting area 102, the propagation path of the incident light can be changed by the prism, and the incident light incident from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the non-light-transmitting area 101 is propagated to the light-transmitting area 102, and emitted from the side of the optical path adjustment layer 12 away from the transparent substrate 11, thereby increasing the light output from the light-transmitting area 102, thereby greatly improving the transmittance of the display panel.

[0081] In one embodiment, as shown in FIG2 , the display panel further includes: a first planarization layer 14. The first planarization layer 14 is located between the transparent substrate 11 and the driving circuit layer 13. The first planarization layer 14 is provided with a plurality of first dimming ports, and each first dimming structure is correspondingly located in each first dimming port.

[0082] In this embodiment, the first planarization layer 14 is used to perform a film planarization process, so as to form a driving circuit layer 13 on the side of the first planarization layer 14 away from the substrate. In addition, by providing a plurality of first dimming ports on the first planarization layer 14, each first dimming structure is correspondingly located in each first dimming port, so that each first dimming structure can be set at a suitable position, so that the first dimming structure can transmit the incident light incident on the non-light-transmitting area 101 from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the light-transmitting area 102, and emit it from the side of the optical path adjustment layer 12 away from the transparent substrate 11, thereby increasing the light output of the light-transmitting area 102, thereby improving the perspective effect of the display panel.

[0083] In one embodiment, the material of the first planarization layer 14 is a transparent material.

[0084] In this embodiment, by making the material of the first planarization layer 14 a transparent material, the light transmittance of the first planarization layer 14 is relatively high, which is beneficial to improving the perspective effect of the display panel.

[0085] In one embodiment, the refractive index of the material of the first planarization layer 14 is greater than the refractive index of the material of the first dimming structure 121 .

[0086] It can be understood that when light enters a medium with a higher refractive index into a medium with a lower refractive index, if the incident angle is greater than a certain critical angle, the refracted light will disappear, and all incident light will be reflected without entering the medium with a low refractive index. Therefore, by making the material refractive index of the first planarization layer 14 greater than the material refractive index of the first dimming structure, part of the light emitted from the first planarization layer 14 to the first dimming structure 121 can be totally reflected, thereby increasing the light reflected to the light-transmitting area 102, further increasing the light output of the light-transmitting area 102, and thus improving the perspective effect of the display panel.

[0087] When light enters a medium with a higher refractive index from a medium with a lower refractive index, incident light with an incident angle less than a critical value will be refracted into the medium with a lower refractive index. Therefore, when the material refractive index of the first planarization layer 14 is greater than the material refractive index of the first dimming structure, at least part of the incident light from the first planarization layer 14 to the first dimming structure 121 with an incident angle less than the critical value will undergo a first refraction. After the first refraction, at least part of the refracted light from the first dimming structure 121 to the first planarization layer 14 will undergo a second refraction to the light-transmitting area 102, thereby increasing or decreasing the amount of light emitted from the light-transmitting area 102 and improving the perspective effect of the display panel.

[0088] In one embodiment, the display panel further includes a second planarization layer 15 . The second planarization layer 15 is located on the side of the driving circuit layer 13 away from the transparent substrate 11 . The second planarization layer 15 is used to planarize the film layer so as to form other film layers on the side of the second planarization layer 15 away from the transparent substrate 11 .

[0089] In one embodiment, the material of the second planarization layer 15 is a transparent material, and the light transmittance of the second planarization layer 15 is relatively high, which is beneficial to improving the perspective effect of the display panel.

[0090] In one embodiment, the driving circuit layer 13 further includes a plurality of metal conductive layers, each of which is provided with a metal trace 1012, and the metal trace 1012 is used to transmit a signal. The optical path adjustment layer 12 includes a plurality of second dimming structures, and the orthographic projection of the second dimming structure on the transparent substrate 11 at least partially overlaps with the orthographic projection of the metal trace 1012 on the transparent substrate 11.

[0091] In the display panel, the area of ​​the metal wiring 1012 accounts for a relatively large proportion, and most of the metal wiring 1012 is a light-blocking structure, which is not conducive to improving the light transmittance of the display panel. However, by providing a second dimming structure between the metal wiring 1012 and the transparent substrate 11, and making the orthographic projection of the second dimming structure on the transparent substrate 11 at least partially overlap with the orthographic projection of the metal wiring 1012 on the transparent substrate 11, at least part of the incident light directed to the metal wiring 1012 can be transmitted to the light-transmitting area 102 through the second dimming structure, thereby further increasing the light output of the light-transmitting area 102, thereby further improving the transmission effect of the display panel.

[0092] In applications, the first planarization layer 14 may further be provided with a plurality of second dimming ports, and each second dimming structure is correspondingly located in each second dimming port.

[0093] In one embodiment, as shown in FIG. 4 , the driving circuit layer 13 includes a plurality of thin film transistors 1311 , and the orthographic projection of the first dimming structure 121 on the transparent substrate 11 covers the orthographic projection of the thin film transistors 1311 on the transparent substrate 11 .

[0094] In application, the driving circuit layer 13 further includes a scanning circuit located in the non-display area 20, and the scanning circuit includes a plurality of thin film transistors 1311. The thin film transistors 1311 will block the passage of light, which is not conducive to improving the light transmittance of the display panel.

[0095] In this embodiment, by making the orthographic projection of the first dimming structure 121 on the transparent substrate 11 cover the orthographic projection of the thin film transistor 1311 on the transparent substrate 11, the incident light directed to the thin film transistor 1311 can be transmitted to the light-transmitting area 102 through the first dimming structure 121, thereby increasing the light output of the light-transmitting area 102 to improve the perspective effect of the display panel. In addition, the light directed to the thin film transistor 1311 can be reduced, which helps to reduce the influence of light on the circuit characteristics of the thin film transistor 1311, improve the stability of the thin film transistor 1311, thereby improving the stability of the pixel circuit 131 and the scanning circuit, and improving the display effect of the display panel.

[0096] In one embodiment, as shown in FIG4 , the display panel further includes: a transparent pixel definition layer 16. The transparent pixel definition layer 16 is provided with a plurality of pixel openings 161, each pixel opening 161 is correspondingly provided with a light-emitting element 1011, each light-emitting element 1011 is located in a non-transparent area, and the orthographic projections of the plurality of light-emitting elements 1011 on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11. Exemplarily, the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11 may correspond to covering the orthographic projections of the plurality of light-emitting elements 1011 on the transparent substrate 11.

[0097] It can be understood that by providing a transparent pixel definition layer 16 and providing a plurality of pixel openings 161 in the transparent pixel definition layer 16, a light-emitting element 1011 can be formed in each pixel opening 161, and the position of each light-emitting element 1011 is limited to prevent the light-emitting element 1011 from color mixing during the formation process. By making the transparent pixel definition layer 16 a transparent pixel definition layer 16, the light transmittance of the transparent pixel definition layer 16 can be improved, so that the display panel can have a light-transmitting area 102, thereby improving the perspective effect of the display panel. By making the orthographic projections of the plurality of light-emitting elements 1011 on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11, at least part of the incident light directed to the light-emitting element 1011 can be propagated to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102, greatly improving the light transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel.

[0098] In combination with the above embodiments, in one example, the orthographic projection of the optical path adjustment layer 12 on the transparent substrate 11 can cover the non-light-transmitting area 101 of the display panel (including the non-light-transmitting area 101 of the display area 10 and the non-light-transmitting area of ​​the non-display area 20), so that the incident light directed to the non-light-transmitting area 101 is transmitted to the light-transmitting area 102 of the display panel through the optical path adjustment layer 12, thereby maximizing the light output of the light-transmitting area 102, thereby maximizing the perspective effect of the display panel.

[0099] Based on the same inventive concept, as shown in Figures 5 and 6, the present application also provides a method for manufacturing a display panel, wherein the display panel has a display area, and the display area includes a light-transmitting area and a non-light-transmitting area. The method for manufacturing the display panel includes the following steps S501 to S503.

[0100] S501: providing a transparent substrate, wherein the transparent substrate has a first region corresponding to a light-transmitting region and a second region corresponding to a light-non-transmitting region.

[0101] The light transmittance of the transparent substrate 11 is relatively high, so external light can be incident on the light-transmitting area 102 and the non-light-transmitting area 101 through the transparent substrate 11 .

[0102] S502: forming an optical path adjustment layer on one side of the transparent substrate, the optical path adjustment layer comprising a plurality of first dimming structures, the first dimming structures being used to propagate incident light entering the second region from the side of the transparent substrate away from the optical path adjustment layer to the side of the first region close to the optical path adjustment layer.

[0103] It can be understood that since the optical path adjustment layer 12 is located on one side of the transparent substrate 11, by making the first dimming structure 121 at least partially located in the non-light-transmitting area 101, at least part of the incident light from the second area will be incident on the first dimming structure 121, and the first dimming structure 121 can propagate the incident light incident on the second area from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the side of the first area close to the optical path adjustment layer 12, corresponding to the display panel, that is, at least part of the incident light directed to the non-light-transmitting area 101 can be propagated to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102 and improving the perspective effect of the display panel.

[0104] S503: forming a driving circuit layer on a side of the optical path adjustment layer away from the transparent substrate, wherein the driving circuit layer includes a plurality of pixel circuits, wherein the orthographic projection of each pixel circuit on the transparent substrate is located in the second area, and the orthographic projections of the plurality of pixel circuits on the transparent substrate correspond to orthographic projections of the plurality of first dimming structures on the transparent substrate and at least partially overlap.

[0105] Exemplarily, the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11 may correspond to and cover the orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11 .

[0106] In applications, the pixel circuit 131 is used to drive the light-emitting element 1011 to emit light, and it is often a light-proof structure. Therefore, in the display area 10, it is mainly the pixel circuit 131 that blocks the passage of external light. By making the optical path adjustment layer 12 need to be located between the transparent substrate 11 and the driving circuit layer 13, and setting a plurality of first dimming structures, the orthographic projections of the plurality of first dimming structures on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11, so that the incident light can be adjusted by the first dimming structure, the light direction of the incident light directed to the corresponding pixel display area 10 is changed, and at least part of the incident light directed to the corresponding pixel display area 10 is transmitted to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102 and improving the perspective effect of the display panel.

[0107] In addition, the pixel circuit 131 includes multiple thin film transistors. By adjusting the direction of the incident light through the optical path adjustment layer 12, the light directed to the thin film transistor can be reduced, thereby reducing the light flux irradiating the thin film transistor, helping to reduce the impact of light on the circuit characteristics of the thin film transistor, and improving the stability of the thin film transistor, thereby improving the stability of the pixel circuit 131 and improving the display effect of the display panel.

[0108] In the manufacturing method of the display panel, an optical path adjustment layer 12 is formed on one side of the transparent substrate 11, and a driving circuit layer 13 is formed on the side of the optical path adjustment layer 12 away from the transparent substrate 11, so that the optical path adjustment layer 12 is located between the transparent substrate 11 and the driving circuit layer 13. Since the orthographic projection of each pixel circuit 131 on the transparent substrate 11 is located in the second area, the orthographic projections of the plurality of pixel circuits 131 on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11, and the first dimming structure 121 can transmit at least part of the incident light directed to the pixel circuit 131 to the side of the first area close to the optical path adjustment layer 12. In the display panel manufactured by the manufacturing method of the display panel, the optical path adjustment layer 12 can transmit at least part of the incident light directed to the pixel circuit 131 to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102, greatly improving the light transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel, thereby improving the display performance of the display panel.

[0109] In one embodiment, as shown in FIG. 7 and FIG. 8 , the method for manufacturing the display panel further includes the following steps S504 to S505 .

[0110] S504: forming a transparent pixel definition layer on a side of the driving circuit layer away from the transparent substrate, wherein the transparent pixel definition layer is provided with a plurality of pixel openings.

[0111] By forming the transparent pixel definition layer 16 , the light transmittance of the transparent pixel definition layer 16 can be improved, so that the display panel can have a light-transmitting area 102 , thereby improving the perspective effect of the display panel.

[0112] S505: forming a light-emitting element corresponding to each pixel opening, wherein the orthographic projection of each light-emitting element on the transparent substrate is located in the second area, and the orthographic projections of the plurality of light-emitting elements on the transparent substrate at least partially overlap with the orthographic projections of the plurality of first dimming structures on the transparent substrate.

[0113] It can be understood that by forming the light-emitting elements 1011 in each pixel opening 161, the position of each light-emitting element 1011 can be limited to prevent the light-emitting elements 1011 from cross-coloring during the formation process. In addition, by making the orthographic projections of the plurality of light-emitting elements 1011 on the transparent substrate 11 correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures 121 on the transparent substrate 11, in the correspondingly formed display panel, at least part of the incident light directed to the light-emitting elements 1011 can be transmitted to the light-transmitting area 102, thereby increasing the light output of the light-transmitting area 102, greatly improving the light transmittance of the display panel, and improving the perspective effect of the display panel without reducing the resolution of the display panel.

[0114] In one embodiment, after step S501 and before step S502, the method for manufacturing the display panel further includes: forming a first planarization layer 14 on one side of the transparent substrate, the first planarization layer 14 having a plurality of first dimming ports; and forming a first dimming structure 121 in each first dimming port.

[0115] The material of the first planarization layer 14 may be a transparent material.

[0116] It can be understood that by forming the first planarization layer 14 and performing the film planarization process using the first planarization layer 14, it is convenient to form the driving circuit layer 13 on the side of the first planarization layer 14 away from the substrate. In addition, by providing a plurality of first dimming ports on the first planarization layer 14, each first dimming structure is correspondingly located in each first dimming port, so that each first dimming structure can be set at a suitable position, so that the first dimming structure can transmit the incident light from the side of the transparent substrate 11 away from the optical path adjustment layer 12 to the light transmission area 102, increase the light output of the light transmission area 102, and thus improve the perspective effect of the display panel finally formed.

[0117] In application, the first planarization layer 14 may also be provided with a plurality of second dimming ports, and each second dimming structure is correspondingly located in each second dimming port. The orthographic projection of the second dimming structure on the transparent substrate 11 at least partially overlaps with the orthographic projection of the metal trace 1012 on the transparent substrate 11 .

[0118] In one embodiment, after step S503 and before step S504 , the method for manufacturing a display panel further includes: forming a second planarization layer 15 on a side of the driving circuit layer 13 away from the transparent substrate 11 .

[0119] The material of the second planarization layer 15 may be a transparent material.

[0120] It can be understood that by forming the second planarization layer 15 on the side of the driving circuit layer 13 away from the transparent substrate 11, the second planarization layer 15 is used to achieve film planarization, thereby facilitating the formation of other film layers (such as the above-mentioned transparent pixel definition layer 16) on the side of the second planarization layer 15 away from the transparent substrate 11.

[0121] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the accompanying drawings may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the steps or stages in other steps.

[0122] Based on the same inventive concept, Fig. 9 As shown, the embodiment of the present application further provides a display device 200 , which includes the display panel 100 in the above embodiment.

[0123] It can be understood that the display device 200 in the embodiment of the present application can be an OLED display device, a QLED display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, or any other product or component with a display function, and the embodiments disclosed in the present application are not limited to this.

[0124] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0125] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel has a display area, and the display area includes a light-transmitting area and a non-light-transmitting area; the display panel includes: Transparent substrate; An optical path adjustment layer, located on one side of the transparent substrate, comprises a plurality of first dimming structures, wherein the first dimming structures are used to transmit incident light incident from the side of the transparent substrate away from the optical path adjustment layer to the non-light-transmitting area to the light-transmitting area; A driving circuit layer is located on a side of the optical path adjustment layer away from the transparent substrate, the driving circuit layer includes a plurality of pixel circuits, each of the pixel circuits is located in the non-light-transmitting area, and the orthographic projections of the plurality of pixel circuits on the transparent substrate correspond to at least partially overlap with the orthographic projections of the plurality of first dimming structures on the transparent substrate.

2. The display panel according to claim 1, characterized in that: The orthographic projection of each of the first dimming structures on the transparent substrate overlaps at least partially with the orthographic projection of each of the pixel circuits on the transparent substrate; Optionally, the first dimming structure is used to refract incident light incident on the non-light-transmitting area from a side of the transparent substrate away from the optical path adjustment layer to the light-transmitting area; Optionally, the first dimming structure is used to reflect incident light incident to the non-light-transmitting area from a side of the transparent substrate away from the optical path adjustment layer to the light-transmitting area; Optionally, the first dimming structure includes a prism structure; Optionally, the cross-sectional area of ​​the prism structure along the direction from the transparent substrate to the driving circuit layer gradually increases; Optionally, the cross-section of the prism structure is a target shape, and the target shape is one of a semicircle, an inverted triangle and an inverted trapezoid.

3. The display panel according to claim 1, characterized in that: The number of the first dimming structures is less than the number of the pixel circuits.

4. The display panel according to claim 1, characterized in that: The display panel further includes: A first planarization layer, wherein the first planarization layer is located between the transparent substrate and the driving circuit layer, and the first planarization layer is provided with a plurality of first dimming ports, wherein each of the first dimming structures is correspondingly located in each of the first dimming ports; Optionally, the material of the first planarization layer is a transparent material; Optionally, a refractive index of a material of the first planarization layer is greater than a refractive index of a material of the first dimming structure; Optionally, the display panel further includes: a second planarization layer, wherein the second planarization layer is located on a side of the driving circuit layer away from the transparent substrate; Optionally, the material of the second planarization layer is a transparent material.

5. The display panel according to claim 1, characterized in that: The driving circuit layer also includes multiple metal conductive layers, each of which is provided with a metal wiring; the optical path adjustment layer includes multiple second dimming structures, and the orthographic projection of the second dimming structure on the transparent substrate at least partially overlaps with the orthographic projection of the metal wiring on the transparent substrate.

6. The display panel according to claim 1, characterized in that: The driving circuit layer includes a plurality of thin film transistors, and the orthographic projection of the first dimming structure on the transparent substrate covers the orthographic projection of the thin film transistor on the transparent substrate.

7. The display panel according to any one of claims 1 to 6, characterized in that: The display panel further includes: A transparent pixel definition layer is provided with a plurality of pixel openings, each of the pixel openings has a corresponding light-emitting element, each of the light-emitting elements is located in the non-transparent area, and the orthographic projections of the plurality of light-emitting elements on the transparent substrate correspond to at least partially overlap with the orthographic projections of the plurality of the first dimming structures on the transparent substrate.

8. A method for manufacturing a display panel, characterized in that: The display panel has a display area, and the display area includes a light-transmitting area and a non-light-transmitting area; the method includes: Providing a transparent substrate, wherein the transparent substrate has a first area corresponding to the light-transmitting area and a second area corresponding to the light-non-transmitting area; An optical path adjustment layer is formed on one side of the transparent substrate, the optical path adjustment layer includes a plurality of first dimming structures, and the first dimming structures are used to propagate incident light incident from a side of the transparent substrate away from the optical path adjustment layer to the second area to a side of the first area close to the optical path adjustment layer; A driving circuit layer is formed on a side of the optical path adjustment layer away from the transparent substrate, the driving circuit layer including a plurality of pixel circuits, the orthographic projection of each pixel circuit on the transparent substrate being located in the second area, and the orthographic projections of the plurality of pixel circuits on the transparent substrate at least partially overlapping with the orthographic projections of the plurality of first dimming structures on the transparent substrate.

9. The method for manufacturing a display panel according to claim 8, characterized in that: The method further comprises: Forming a transparent pixel definition layer on a side of the driving circuit layer away from the transparent substrate, wherein the transparent pixel definition layer is provided with a plurality of pixel openings; A light-emitting element is formed corresponding to each pixel opening, and the orthographic projection of each light-emitting element on the transparent substrate is located in the second area. The orthographic projections of multiple light-emitting elements on the transparent substrate at least partially overlap with the orthographic projections of multiple first dimming structures on the transparent substrate.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 7.

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