Display panel, display screen module, and electronic device

Abstract

Embodiments of the present invention provide a display panel, a display screen module, and an electronic device. The display panel comprises a light-emitting layer and a light-absorbing layer. A pixel control circuit and a light-emitting sub-pixel are provided in the light-emitting layer. The light-emitting sub-pixel comprises a first light-emitting portion and a second light-emitting portion. The pixel control circuit is electrically connected to the first light-emitting portion and the second light-emitting portion and can selectively turn on the first light-emitting portion and / or the second light-emitting portion. A first light-absorbing portion and a second light-absorbing portion are arranged spaced apart from each other in the light-absorbing layer. The first light-absorbing portion covers the light exit side of the light-emitting layer. A plurality of openings are formed in the first light-absorbing portion. The orthographic projections of the plurality of openings in the thickness direction of the display panel cover the first light-emitting portion and the second light-emitting portion. The second light-absorbing portion is at least partially located on a first side of the first light-emitting portion in a first direction perpendicular to the thickness direction, so as to absorb light emitted by the first light-emitting portion from the first side and having a light exit angle greater than a first light exit angle.

Description

Display panel, display screen module and electronic equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the Intellectual Property Office of the People's Republic of China on February 29, 2024, with application number 202410232999.6 and application name "Display panel, display module and electronic device", all contents of which are incorporated by reference into this application. Technical Field

[0003] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel, a display screen module, and an electronic device. Background Art

[0004] As electronic products such as computers, mobile phones, and tablets become increasingly integrated into people's work and daily lives, they bring immense convenience and enjoyment to users. However, if the light emission angle range of a display screen is wide, users can be easily spied on while browsing on-screen information, exposing personal privacy, trade secrets, or technical information to the risk of leakage. On the other hand, if the light emission angle range of a display screen is narrow, the display screen is unsuitable for shared use. Therefore, how to make a display screen both privacy-resistant and shareable has become an unresolved issue in this field. Summary of the Invention

[0005] Embodiments of the present invention provide a display panel, a display screen module, and an electronic device, so that the display panel has an anti-peeping luminous state and a shared luminous state, which can be applied to different scenarios and meet the requirements of different application scenarios for anti-peeping and sharing.

[0006] In a first aspect, an embodiment of the present invention provides a display panel, comprising a light-emitting layer and a light-absorbing layer, the light-emitting layer comprising a pixel control circuit and light-emitting sub-pixels, the light-emitting sub-pixels comprising a first light-emitting portion and a second light-emitting portion, the pixel control circuit being electrically connected to the first light-emitting portion and the second light-emitting portion to selectively turn on the first light-emitting portion and / or the second light-emitting portion. The light-absorbing layer is located on a light-emitting side of the light-emitting layer, a light-absorbing portion being disposed within the light-absorbing layer, at least a portion of the light-absorbing portion being located on a first side of the first light-emitting portion in a first direction perpendicular to a thickness direction, for absorbing light emitted by the first light-emitting portion on the first side at an exit angle greater than an exit angle of the first light.

[0007] In the above embodiment, at least part of the light absorbing portion is located on the first side of the first light emitting portion in the first direction. The light absorbing portion can absorb light emitted by the first light emitting portion on the first side with an exit angle greater than the exit angle of the first light, thereby reducing the visible range of the light emitted by the first light emitting portion on the first side, which is beneficial to improving the anti-peeping property of the display panel on the first side.

[0008] The display panel selectively turns on the first light-emitting portion and / or the second light-emitting portion through the pixel control circuit, so that the display panel has at least a first state in which the first light-emitting portion alone emits light and a second state in which the first light-emitting portion and the second light-emitting portion emit light at the same time. In the first state, the first light-emitting portion emits light and the second light-emitting portion is turned off. The light emitted by the first light-emitting portion has a smaller visible range on the first side, which is conducive to achieving the anti-peeping performance of the display panel on the first side. In the second state, the first light-emitting portion and the second light-emitting portion emit light at the same time, and the second light-emitting portion can compensate for the light absorbed by the light-absorbing portion on the first side of the first light-emitting portion, so that the display panel has a larger visible range on the first side, which is conducive to improving the sharing performance of the display panel. It can be seen that the above-mentioned display panel can selectively present the first state and the second state to balance the anti-peeping performance and sharing performance to suit different application scenarios.

[0009] In some possible embodiments, the light absorbing layer includes a first light absorbing portion and a second light absorbing portion, the first light absorbing portion covers the light emitting side of the light emitting layer, and a plurality of openings are formed on the first light absorbing portion, the orthographic projections of the plurality of openings along the thickness direction of the display panel cover the first light emitting portion and the second light emitting portion, the second light absorbing portion is located on the side of the first light absorbing portion away from the light emitting layer, and at least a portion of the second light absorbing portion is located on the first side of the first light emitting portion in the first direction, so as to absorb light emitted by the first light emitting portion on the first side at a greater angle than the first light emitting angle.

[0010] In the above embodiment, the first and second light-absorbing portions are provided separately, which helps reduce manufacturing difficulty and ensures the positional and dimensional accuracy of the first and second light-absorbing portions. Furthermore, the multiple openings in the first light-absorbing portion are arranged correspondingly to the first and second light-emitting portions, thereby avoiding the optical paths of the first and second light-emitting portions, allowing light emitted by the first and second light-emitting portions to escape the first light-absorbing portion while limiting the range of light emission. Furthermore, the first light-absorbing portion absorbs ambient light entering the display panel, preventing it from affecting the displayed content and improving the black level of the display panel when the screen is off.

[0011] In some possible implementations, the first light emission angle ranges from 30° to 60°. The light absorbing portion can absorb light emitted by the first light emitting portion on the first side that is greater than the first light emission angle, so that the maximum light emission angle of the display panel on the first side is within the range of 30° to 60°, thereby reducing the visible range of light from the display panel on the first side.

[0012] In some possible embodiments, at least part of the second light absorbing portion is located on the second side of the first light emitting portion, so as to absorb the light emitted by the first light emitting portion on the second side at an angle greater than the second angle, and the second side and the first side are opposite sides of the first light emitting portion in the first direction. Exemplarily, the second light emitting angle is equal to the first light emitting angle, or the second light emitting angle is greater than the first light emitting angle. In the first state of the display panel, both sides of the first light emitting portion in the first direction have a smaller visible range, which is beneficial to improving the anti-peeping performance of the display panel in the first direction. Exemplarily, the above-mentioned first direction is the left and right direction of the display panel in use, that is, the display panel has anti-peeping performance in the left and right directions in the first state and has good privacy.

[0013] In some possible embodiments, at least a portion of the second light-absorbing portion is located on a third side of the first light-emitting portion to absorb light emitted by the first light-emitting portion on the third side at an angle greater than the third angle, and / or at least a portion of the second light-absorbing portion is located on a fourth side of the first light-emitting portion to absorb light emitted by the first light-emitting portion on the fourth side at an angle greater than the fourth angle. The third side and the fourth side are opposite sides of the first light-emitting portion in a second direction perpendicular to the first direction. Exemplarily, the third and fourth angles are both equal to the first light angle.

[0014] In some embodiments, the second light-absorbing portion is formed as an annular light-absorbing portion, whose orthographic projection along the thickness direction surrounds the first light-emitting portion. In this embodiment, the display panel has a relatively small visible range in the direction surrounding the first light-emitting portion, thus providing good privacy protection. In this embodiment, the shape of the annular light-absorbing portion is adapted to the shape of the first light-emitting portion. For example, in an embodiment in which the first light-emitting portion is formed as a rectangular light-emitting portion, the annular light-absorbing portion is formed as a rectangular ring structure. In an embodiment in which the first light-emitting portion is formed as a circular light-emitting portion, the annular light-absorbing portion is formed as a circular ring structure.

[0015] In some possible implementations, the first light emitting portion and the second light emitting portion are arranged along the first direction. Exemplarily, the second light emitting portion is located on a second side of the first light emitting portion in the first direction, and the second side and the first side are opposite sides of the first light emitting portion.

[0016] In some possible embodiments, the second light-emitting portion is formed into a ring structure, and the second light-emitting portion is arranged around the first light-emitting portion. The second light-emitting portion and the first light-emitting portion are more integrated and occupy less space, which is conducive to improving the resolution of the display panel.

[0017] In some possible embodiments, the pixel control circuit includes a main control circuit, a first branch and a second branch connected in parallel, the output end of the main control circuit is electrically connected to the input end of the first branch and the input end of the second branch, respectively, a first light-emitting portion is provided on the first branch, and a transistor switch and a second light-emitting portion are provided on the second branch.

[0018] In the above embodiment, when the transistor switch on the second branch is off, the display panel is in a first state, the main control circuit is in conduction with the first light-emitting portion, controlling the first light-emitting portion to emit light and the second light-emitting portion to turn off, and the display panel has a peeping-proof function. When the transistor switch on the second branch is on, the display panel is in a second state, the main control circuit is in conduction with the first light-emitting portion and the second light-emitting portion, respectively, controlling the first light-emitting portion and the second light-emitting portion to emit light simultaneously, and the display panel has a sharing function. Since the first branch and the second branch are connected in parallel, in the second state, the input current of the main control circuit is divided between the first branch and the second branch, and the brightness of the first light-emitting portion decreases as the current decreases, which is beneficial to extending the service life of the first light-emitting portion and maintaining a similar display brightness of the display panel in the first and second states.

[0019] In some possible embodiments, the display panel further includes an encapsulation layer that covers the light-emitting side of the light-emitting layer to provide encapsulation and protection for the light-emitting layer. Exemplarily, the display panel further includes a touch layer located on the light-emitting side of the encapsulation layer, with the first light-absorbing layer covering the light-emitting side of the touch layer. The touch layer is used to implement the touch function of the display panel.

[0020] In some possible embodiments, the light absorbing layer includes a planar layer, and the light absorbing portion is located within the planar layer. Exemplarily, the planar layer covers a side of the first light absorbing portion facing away from the light emitting layer and a side of the second light absorbing portion facing away from the light emitting layer. The planar layer can perform a planarization process (or leveling process) on the side of the light absorbing layer facing away from the light emitting layer to facilitate the formation of subsequent structures on the light emitting side of the planar layer.

[0021] In some possible embodiments, the planar layer includes a first planar layer and a second planar layer, with the first planar layer covering the first light absorbing portion, the second light absorbing portion being formed on the light-emitting side of the first planar layer, and the second planar layer covering the second light absorbing portion. In this way, the first planar layer can provide a flat surface on the side of the first light absorbing portion facing away from the light-emitting layer, facilitating the subsequent formation of the second light absorbing portion. The second planar layer can also provide a flat surface on the side of the second light absorbing portion facing away from the light-emitting layer, facilitating the placement of subsequent structures (e.g., a polarizer or color filter layer).

[0022] In some possible embodiments, the display panel further includes a polarizer, which is located on the light-emitting side of the light-absorbing layer. The polarizer can be used to absorb ambient light entering the display panel to prevent the ambient light from being reflected and emitted from the display panel and affecting the displayed content.

[0023] In some possible implementations, the display panel further includes a color filter layer, which is located on the light-emitting side of the light-absorbing layer, or is co-located with the second light-absorbing portion. In this embodiment, the color filter layer's characteristic of transmitting light of a specific spectrum and absorbing light of other spectrums can be utilized to suppress ambient light, enabling the display panel to clearly display content even in strong light environments such as outdoors.

[0024] In some possible implementations, the display panel satisfies the following relationship: θ1≥arcsin(sinα / N);

[0025] Wherein, α is the first light emission angle. Exemplarily, the first light emission angle ranges from 30° to 60°. The first critical angle θ1 is the angle between the line connecting the end of the first light-emitting portion away from the second light-absorbing portion in the first direction and the end of the second light-absorbing portion on the end surface facing away from the light-emitting layer and close to the first light-emitting portion, and the thickness direction. N is the average refractive index. The average refractive index N refers to the ratio of the sine value of the light emission angle to the sine value of the angle between the light ray and the thickness direction when it is emitted from the first light-emitting portion. It is used to reflect the refractive index of the light emitted by the first light-emitting portion after it is emitted from the light-emitting surface. It should be noted that the light emitted by the first light-emitting portion will be refracted when passing through subsequent structural layers (such as the encapsulation layer, touch layer or flat layer, etc.). The material of each structural layer is different, and the refractive index of the structural layer is also different. Therefore, the average refractive index N can be calculated based on the refractive index of the specific structural layer in the display panel, or the average refractive index N can be measured through a light simulation experiment. Illustratively, in an embodiment where the display panel includes an encapsulation layer, the encapsulation layer is located on the light emitting surface of the light emitting layer, and the average refractive index N is equal to the refractive index of the encapsulation layer.

[0026] The display panel in the above embodiment also satisfies the following relationship: (WAP+outBM2) / (H1)>tan(θ1)

[0027] Among them, WAP is the size of the first light-emitting portion in the first direction, outBM2 is the distance between the first light-emitting portion and the second light-absorbing portion in the first direction, and H1 is the distance between the end of the second light-absorbing portion away from the light-emitting layer and the first light-emitting portion in the thickness direction.

[0028] In the above-mentioned embodiment, when light is emitted from the first light-emitting portion at an angle greater than the first critical angle θ1, light greater than the first critical angle θ1 will be absorbed by the light-absorbing portion, so that light greater than the first critical angle θ1 cannot be emitted from the light-emitting surface of the display panel, thereby eliminating light greater than the first light emission angle on the light-emitting surface of the display panel, reducing the visible range of the display panel, and improving the anti-peeping performance.

[0029] In some possible embodiments, the display panel satisfies the relationship H1 = H2 + HBM, where HBM is the distance in the thickness direction between the end surface of the second light absorbing portion facing away from the light-emitting layer and the end surface of the first light absorbing portion facing the light-emitting layer. H2 is the distance in the thickness direction between the end surface of the first light absorbing portion facing the light-emitting layer and the first light-emitting portion. For example, in an embodiment in which the display panel includes an encapsulation layer and a touch layer, H2 is the distance in the thickness direction between the light-emitting surface of the touch layer and the first light-emitting portion.

[0030] In some possible implementations, the display panel further satisfies the following relationship: θ2≥arcsin(sinβ / N);

[0031] Where β is the critical emission angle. When the light's emission angle is greater than the critical emission angle, the light is totally reflected within the display panel and cannot exit the display panel. Typically, the critical emission angle β is 90°. The second critical angle θ2 is the angle between the line connecting the end of the first light-emitting portion closest to the first light-absorbing portion in the first direction and the end of the first light-absorbing portion facing the light-emitting layer, further away from the first light-emitting portion, and the thickness direction. N is the average refractive index.

[0032] The above display panel also satisfies the following relationship: (outBM1+WBM1) / (H2)>tan(θ2)

[0033] Among them, outBM1 is the distance between the first light-emitting portion and the first light-absorbing portion in the first direction, WBM1 is the size of the first light-absorbing portion in the first direction, and H2 is the distance between the end face of the first light-absorbing portion facing the light-emitting layer and the first light-emitting portion in the thickness direction.

[0034] In this embodiment, when the light emitted by the first light-emitting portion with a light angle greater than the second critical angle θ2 enters the light-emitting surface of the display panel, the corresponding emission angle of the light is greater than the critical emission angle, so the light is totally reflected inside the display panel and cannot be emitted from the display panel, thereby preventing the light from interfering with the display effect of the display panel.

[0035] In some possible implementations, the display panel satisfies the following relationship: θ3≥arcsin(sinβ / N);

[0036] Among them, β is the critical emission angle, exemplarily, β = 90°, the third critical angle θ3 is the angle between the line connecting the end of the first light-emitting portion away from the second light-absorbing portion in the first direction and the end of the second light-absorbing portion on the end face facing the light-emitting layer away from the first light-emitting portion and the thickness direction, and N is the average refractive index.

[0037] The above display panel also satisfies the following relationship: (WAP+outBM2+WBM2) / (H3)>tan(θ3)

[0038] Among them, WAP is the size of the first light-emitting portion in the first direction, outBM2 is the distance between the first light-emitting portion and the second light-absorbing portion in the first direction, WBM2 is the size of the second light-absorbing portion in the first direction, and H3 is the distance between the end face of the second light-absorbing portion facing the light-emitting layer and the first light-emitting portion in the thickness direction.

[0039] In this embodiment, when the light emitted by the first light-emitting portion with a light angle greater than the third critical angle θ3 enters the light-emitting surface of the display panel, the corresponding emission angle of the light is greater than the critical emission angle, so the light is totally reflected inside the display panel and cannot be emitted from the display panel, thereby preventing the light from interfering with the display effect of the display panel.

[0040] In some exemplary embodiments, the display panel further satisfies the following relationship: arctan(outBM1 / H4)≤arctan((outBM2+WBM2) / (H3))

[0041] Among them, outBM1 is the distance between the first light absorbing part and the light absorbing part in the first direction, outBM2 is the distance between the second light absorbing part and the light absorbing part in the first direction, WBM2 is the size of the second light absorbing part in the first direction, H3 is the distance between the end face of the second light absorbing part facing the light-emitting layer and the first light-emitting part in the thickness direction, and H4 is the distance between the end face of the first light absorbing part facing away from the light-emitting layer and the first light-emitting part in the thickness direction.

[0042] In this embodiment, when the light emitted by the first light-emitting portion with a light angle greater than the third critical angle θ3 enters the light-emitting surface of the display panel, the corresponding emission angle of the light is greater than the critical emission angle, so the light is totally reflected inside the display panel and cannot be emitted from the display panel, thereby preventing the light from interfering with the display effect of the display panel.

[0043] In some possible embodiments, the display panel further includes a microlens, which is disposed corresponding to the first light-emitting portion and located on a light-emitting side of the first light-emitting portion. The orthographic projection of the microlens along the thickness direction at least partially overlaps with the first light-emitting portion. The microlens gathers light emitted by its corresponding first light-emitting portion, further concentrating the light, facilitating the light's exit from the light-absorbing layer, and improving the light extraction efficiency of the light emitted by the first light-emitting portion.

[0044] In some possible embodiments, the first light absorbing portion is located on the light emitting side of the micro-projector, that is, the light emitted by the first light emitting portion can first pass through the converging effect of the micro-lens and then pass through the light absorbing layer. The converged light is more conducive to passing through the light absorbing layer, thereby improving the light extraction efficiency.

[0045] In some possible implementations, the microlens is arranged in the same layer as the first light absorbing portion, and the microlens is located in an opening in the first light absorbing portion corresponding to the first light emitting portion. In this embodiment, the microlens can converge the light, and the microlens does not need to occupy a separate structural layer, which is conducive to simplifying the structure of the display panel.

[0046] In some possible implementations, the microlens is located on a side of the first light absorbing portion facing away from the light emitting layer, and the second light absorbing portion is located on a light emitting side of the microlens.

[0047] In some possible embodiments, the plurality of light-emitting sub-pixels include red light-emitting sub-pixels, green light-emitting sub-pixels, and blue light-emitting sub-pixels, and the display panel includes a plurality of pixel groups, wherein each pixel group includes one red light-emitting sub-pixel, one green light-emitting sub-pixel, and one blue light-emitting sub-pixel arranged in a triangular pattern, or each pixel group includes one red light-emitting sub-pixel, two green light-emitting sub-pixels, and one blue light-emitting sub-pixel arranged in a square pattern.

[0048] In a second aspect, an embodiment of the present invention provides a method for manufacturing a display panel, the method comprising:

[0049] forming a light-emitting layer, the light-emitting layer including a pixel control circuit and light-emitting sub-pixels, the light-emitting sub-pixels including a first light-emitting portion and a second light-emitting portion, the pixel control circuit being electrically connected to the first light-emitting portion and the second light-emitting portion to selectively turn on the first light-emitting portion and / or the second light-emitting portion;

[0050] A light absorbing layer is formed, the light absorbing layer being arranged on the light emitting side of the light emitting layer, the light absorbing layer including a first light absorbing portion and a second light absorbing portion, a plurality of openings being formed on the first light absorbing portion, the orthographic projections of the plurality of openings along the thickness direction of the display panel covering the first light emitting portion and the second light emitting portion, the second light absorbing portion being located on a side of the first light absorbing portion facing away from the light emitting layer, and at least a portion of the second light absorbing portion being located on a first side of the first light emitting portion in a first direction perpendicular to the thickness direction, so as to absorb light emitted by the first light emitting portion on the first side at an exit angle greater than the first light exit angle.

[0051] Exemplarily, forming the light-emitting layer specifically includes: forming a pixel driving circuit on a substrate, forming a pixel definition layer by an evaporation process, and forming light-emitting sub-pixels on the pixel definition layer.

[0052] Exemplarily, after forming the light-emitting layer, the manufacturing method further includes: forming an encapsulation layer on the light-emitting side of the light-emitting layer, and forming a touch layer on the light-emitting side of the encapsulation layer.

[0053] Exemplarily, forming the light absorbing layer includes: forming the light absorbing layer by coating and photolithography processes, forming a first light absorbing portion by coating and photolithography processes, coating a first planarizing layer on the light-exiting side of the touch layer and the light-exiting side of the first light absorbing portion, forming a second light absorbing portion by coating and photolithography processes on the light-exiting side of the first planarizing layer, and coating a second planarizing layer on the light-exiting side of the second light absorbing portion and the first planarizing layer.

[0054] Illustratively, the above manufacturing method further includes: sequentially laminating a polarizer and a cover plate on the light-emitting side of the light-absorbing layer.

[0055] In a third aspect, an embodiment of the present invention provides a display screen module, comprising a display panel according to any one of the above possible implementations and a flexible circuit board, wherein the flexible circuit board is electrically connected to the display panel.

[0056] In a fourth aspect, an embodiment of the present invention provides an electronic device, comprising a control circuit board and a display screen module according to any one of the above possible implementations, wherein the flexible circuit board in the display screen module is used to connect the control circuit board and the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention;

[0058] FIG2 is a schematic structural diagram of a display panel provided by the first embodiment of the present invention;

[0059] 3 is a schematic structural diagram of a first light absorbing portion of a display panel provided by the first embodiment of the present invention;

[0060] 4 is a schematic structural diagram of a second light absorbing portion of a display panel provided by the first embodiment of the present invention;

[0061] FIG5 is a schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention after being cut along its thickness direction;

[0062] FIG6 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention after being cut along its thickness direction.

[0063] FIG7 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention, cut along its thickness direction;

[0064] FIG8 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention, cut along its thickness direction;

[0065] FIG9 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention, cut along its thickness direction;

[0066] FIG10 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention, cut along its thickness direction;

[0067] FIG11 is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention, cut along its thickness direction;

[0068] 12 is a schematic diagram of the circuit structure of a pixel control circuit of a display panel provided in an embodiment of the present invention;

[0069] FIG13 is a schematic structural diagram of a display panel provided by a second embodiment of the present invention;

[0070] FIG14 is a schematic structural diagram of a display panel provided in a third embodiment of the present invention;

[0071] FIG15 is a schematic structural diagram of a display panel provided in a fourth embodiment of the present invention;

[0072] FIG16 is a schematic structural diagram of a display panel provided in a fifth embodiment of the present invention;

[0073] FIG17 is a schematic structural diagram of a display panel provided by a sixth embodiment of the present invention;

[0074] FIG18 is a schematic structural diagram of a display panel provided by a seventh embodiment of the present invention;

[0075] FIG19 is a schematic structural diagram of a display panel provided in an eighth embodiment of the present invention;

[0076] FIG20 is a schematic structural diagram of a display panel provided by a ninth embodiment of the present invention;

[0077] FIG21 is a schematic structural diagram of a display panel provided by a tenth embodiment of the present invention;

[0078] FIG22 is a schematic structural diagram of a display panel provided in the eleventh embodiment of the present invention. DETAILED DESCRIPTION

[0079] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0080] In the following, the terms "first," "second," etc., are used for descriptive convenience only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0081] In the embodiments of the present application, unless otherwise clearly specified or limited, the term "electrical connection" may refer to a direct electrical connection or an indirect electrical connection through an intermediate medium.

[0082] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0083] In the embodiments of the present application, "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0084] In the embodiments of the present application, the directional indications such as up, down, left, right, front, and back used to explain the structure and movement of different components in the present application are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component position changes, then these directional indications will also change accordingly. It should also be noted that in the embodiments of the present application, the same figure mark represents the same component or the same component. For the same components in the embodiments of the present application, the figure may only mark one of the components or components as an example. It should be understood that the figure mark applies to other identical components or components.

[0085] An embodiment of the present application provides an electronic device, which may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, an in-vehicle device, a wearable device, a watch, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet. For example, the electronic device may be a portable personal computer.

[0086] As shown in FIG1 , FIG1 is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of the present application. In the embodiment shown in FIG1 , the electronic device 1000 is a personal computer. Exemplarily, the electronic device 1000 may include a display screen module 100, which includes a display panel 100. The display panel 10 can receive electrical signals and optically display information for a user to view. In other embodiments, the display panel 10 is integrated with a touch module, and a user can input information or perform specific functions by performing touch operations on the display panel 10.

[0087] In some embodiments, the electronic device 1000 further includes a back shell 1001, a control circuit board (not shown), a battery (not shown), a camera and other components. For example, the display panel 10 and the back shell 1001 are combined to form the outer contour of the electronic device 1000. The back shell 1001 is used to protect the internal electronic components (such as circuit boards, batteries, etc.) of the electronic device 1000. In some embodiments, the back shell 1001 includes a back cover and a middle frame, and the middle frame is fixed to the back cover. Exemplarily, the middle frame is fixed to the back cover by adhesive, or the middle frame and the back cover are integrally formed, that is, the middle frame and the back cover are an integral structure. The display panel 10 and the middle frame are connected by, for example, bonding. The space formed by the display panel 10, the middle frame and the back cover contains components such as a circuit board. The circuit board may include a flexible circuit board, a rigid circuit board, etc. Power devices such as chips and controllers may be provided on the circuit board.

[0088] In some embodiments, the electronic device 1000 further includes a camera 1002, and a camera hole is provided on the back shell 1001, through which the camera 1002 can obtain image information of the light-emitting side of the display panel 10. In other examples, the electronic device 1000 is directly connected to an external power source without the need for a battery. It will be understood that FIG1 only schematically illustrates some components of the electronic device 1000, and the actual shape, size, position, and structure of these components are not limited by FIG1 and the following figures.

[0089] The embodiment of the present application also provides a display screen module 100, which includes a display panel 10 and a flexible circuit board (not shown). The flexible circuit board is electrically connected to the display panel 10 to provide electrical signals to the display panel 10. For example, a first end of the flexible circuit board is electrically connected to the display panel 10, and a connector is provided at the other end of the flexible circuit board. The connector is used to connect to an external controller or power supply to make the display screen module 100 easy to install and remove. In an embodiment where the display screen module 100 is applied to an electronic device 1000, the flexible circuit board of the display screen module 100 can be connected between the display panel 10 and the control circuit board of the electronic device 1000 to enable signal transmission.

[0090] Exemplarily, the display panel 10 is any one of an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini organic light-emitting diode (OLED) display, a micro organic light-emitting diode (OLED) display, a micro organic light-emitting diode (OLED) display, a quantum dot light-emitting diode (QLED) display, and a liquid crystal display (LCD). For example, the display panel 10 is an OLED display panel. OLED display panels have many advantages, such as being lightweight, thin, high contrast, high response speed, and flexible and foldable.

[0091] The display panel 10 displays multiple colors based on a three-color ratio. The three-color ratio specifically refers to the three basic colors of red, green, and blue being superimposed on each other in different proportions to display different colors. In some embodiments, the display panel 10 adopts a red-green-blue (RGB) color matching mode, that is, the display panel includes a plurality of red light-emitting sub-pixels R (capable of emitting red light), a plurality of green light-emitting sub-pixels G (capable of emitting green light), and a plurality of blue light-emitting sub-pixels B (capable of emitting blue light) distributed at intervals. As shown in FIG2 , FIG2 shows a schematic structural diagram of a display panel in an embodiment. The display panel in this embodiment adopts an RGB color matching mode. In this color matching mode, the plurality of light-emitting sub-pixels 103 can respectively emit light of different colors at different brightnesses. Since the size of each light-emitting sub-pixel 103 is very small, the light emitted by the plurality of light-emitting sub-pixels 103 is mixed into a mixed light of a specific color within the visual range recognizable by the human eye. In addition, in some other embodiments, the display panel 100 adopts a red-green-blue-white (RGBW) color matching mode, that is, the display panel includes red sub-pixels R (capable of emitting red light), green sub-pixels G (capable of emitting green light), blue sub-pixels B (capable of emitting blue light) and white sub-pixels W (capable of emitting white light) that are arranged at intervals, which will not be further described here.

[0092] Light within the display panel 10 is emitted from the light-emitting surface of the display panel 10. The angle between the emitted light and the normal perpendicular to the light-emitting surface is the light emission angle. The maximum light emission angle of the display panel 10 is the maximum angle between the emitted light emitted from the light-emitting surface of the display panel 10 and the normal perpendicular to the light-emitting surface. The maximum light emission angle can reflect the visual range of the display panel 10. In other words, the user can not only view the displayed content from the front of the display panel 10 in a direction perpendicular to the light-emitting surface, but also when there is a line of sight angle between the user's line of sight and the normal perpendicular to the light-emitting surface, when the line of sight angle is less than the maximum light emission angle of the display panel 10. In a scenario where the maximum light emission angle of the display panel 10 is relatively large, for example, the maximum light emission angle of the display panel 10 is greater than or equal to 70°, and the angle between the user's line of sight and the normal to the light emitting surface is less than 70°, the user can clearly see the display content on the display panel 10. In this way, the display panel 10 has a large visual range, which is conducive to two or more users viewing the display panel 10 at the same time, thereby realizing the sharing of the display panel 10. However, in contrast, the display panel 10 has the problem of poor privacy protection, and users are easily spied on by others when browsing information, which puts personal privacy, business secrets or technical information at risk of leakage. In a scenario where the maximum light emission angle of the display panel 10 is relatively small, the display panel 10 has a small visual range and has the problem of poor sharing.

[0093] Based on this, as shown in Figures 2 to 22, an embodiment of the present application provides a display panel 10. Figure 2 shows a schematic structural diagram of a display panel 10 provided by an exemplary embodiment of the present application. Figures 5 to 11 respectively show cross-sectional views of the display panels 10 provided by different exemplary embodiments of the present application. It should be noted that Figures 5 to 11 only exemplarily show schematic partial structural views of the display panels 10 in different embodiments after being cut along their thickness direction. In actual applications, the display panel 10 includes one or more partial structures of the display panel 10 shown in any embodiment of Figures 5 to 11. In addition, the display panel 10 also includes other structures not shown in the drawings of the present application. For example, the display panel 10 may also include an encapsulation frame and a frame adhesive layer, etc., and the present application does not impose specific restrictions on this.

[0094] In the embodiment of the present application, the display panel 10 includes a light-emitting layer 1 and a light-absorbing layer 4. The light-emitting layer 1 includes a pixel control circuit 101 and a light-emitting sub-pixel 103. The light-emitting sub-pixel 103 includes a first light-emitting portion 131 and a second light-emitting portion 132. The pixel control circuit 101 is electrically connected to the first light-emitting portion 131 and the second light-emitting portion 132 to selectively turn on the first light-emitting portion 131 and / or the second light-emitting portion 132. The light-absorbing layer 4 is located on the light-emitting side of the light-emitting layer 1. A light-absorbing portion 401 is provided within the light-absorbing layer 4. The orthographic projection of the light-absorbing portion 401 along the thickness direction of the display panel 10 is staggered with respect to the first light-emitting portion 131 and the second light-emitting portion 132 on the light-emitting layer 1. At least a portion of the light-absorbing portion 401 is located on a first side of the first light-emitting portion 131 in a first direction perpendicular to the thickness direction, so as to absorb light emitted from the first light-emitting portion 131 on the first side at an angle greater than the first light-emitting angle.

[0095] In the above embodiment, at least part of the light absorbing portion 401 is located on the first side of the first light emitting portion 131 in the first direction. The light absorbing portion 401 can absorb the light emitted by the first light emitting portion 131 on the first side with an emission angle greater than the first light emission angle, thereby reducing the visible range of the light emitted by the first light emitting portion 131 on the first side, which is beneficial to improving the anti-peeping property of the display panel 10 on the first side.

[0096] The display panel 10 selectively turns on the first light-emitting portion 131 and / or the second light-emitting portion 132 through the pixel control circuit 101, so that the display panel 10 has at least a first state in which the first light-emitting portion 131 emits light alone and a second state in which the first light-emitting portion 131 and the second light-emitting portion 132 emit light simultaneously. In the first state, the first light-emitting portion 131 emits light and the second light-emitting portion 132 is turned off. The light emitted by the first light-emitting portion 131 has a smaller visible range on the first side, which is conducive to achieving the anti-peeping performance of the display panel 10 on the first side. In the second state, the first light-emitting portion 131 and the second light-emitting portion 132 emit light simultaneously. The second light-emitting portion 132 can compensate for the light absorbed by the light-absorbing portion 401 on the first side of the first light-emitting portion 131, so that the display panel 10 has a larger visible range on the first side, which is conducive to improving the sharing performance of the display panel 10. It can be seen that the above-mentioned display panel 10 can selectively present the first state and the second state to balance the anti-peeping performance and sharing performance to suit different application scenarios.

[0097] In some embodiments, the light absorbing layer 4 includes a first light absorbing portion 411 and a second light absorbing portion 412, the first light absorbing portion 411 covers the light emitting side of the light emitting layer 1, and a plurality of openings 4111 are formed on the first light absorbing portion 411, and the orthographic projection of the plurality of openings 4111 along the thickness direction of the display panel 10 covers the first light emitting portion 131 and the second light emitting portion 132, the second light absorbing portion 412 is located on the side of the first light absorbing portion 411 away from the light emitting layer 1, and at least part of the second light absorbing portion 412 is located on the first side of the first light emitting portion 131 in the first direction, so as to absorb light emitted by the first light emitting portion 131 on the first side, whose emission angle is greater than the first light emission angle.

[0098] As shown in Figures 2 to 4 , in this embodiment, the first and second light-absorbing portions 411, 412 within the light-absorbing layer 4 are spaced apart along the thickness direction. Compared to embodiments in which the light-absorbing portions are integrally formed, the first and second light-absorbing portions 411, 412 can each have a smaller thickness dimension, which reduces processing difficulty and ensures the positional and dimensional accuracy of the first and second light-absorbing portions 411, 412. Furthermore, the multiple openings 4111 defined in the first light-absorbing portion 411 correspond to the first and second light-emitting portions 131, 132, avoiding the optical paths of the first and second light-emitting portions 131, 132. This allows light emitted by the first and second light-emitting portions 131, 132 to exit the first light-absorbing portion 411 while limiting the range of light emission. Furthermore, the first light-absorbing portion 411 absorbs ambient light entering the display panel 10, preventing it from affecting the displayed content and improving the black level of the display panel 10 when the screen is off.

[0099] Exemplarily, the range of the first light ray exit angle is 30° to 60°. In this way, the light absorbing portion 401 can absorb the light emitted by the first light emitting portion 131 on the first side that is greater than the first light ray exit angle, so that the maximum light ray exit angle of the display panel 10 on the first side is in the range of 30° to 60°, thereby reducing the light visible range of the display panel 10 on the first side.

[0100] As an exemplary application scenario, the above-mentioned display panel 10 is applied to a portable personal computer. For example, the first direction of the display panel 10 is the left-right direction of the computer when in use, that is, the left-right direction when the display panel 10 is facing the user. In this way, when the display panel 10 is in the first state, the user can view the content on the display panel 10 from the front of the display panel 10, and the visible range on the first side of the display panel 10 is smaller, so that the display panel 10 has anti-peeping properties on its first side. When the user uses the computer, the first side of the display panel 10 can be placed facing the public environment, thereby improving the privacy of use. When the user needs to view it together with others, the display panel 10 is in the second state, and the first light-emitting portion 131 and the second light-emitting portion 132 emit light at the same time. The second light-emitting portion 132 can compensate for the light of the first light-emitting portion 131 absorbed by the light-absorbing portion 401 on the first side that is greater than the first light emission angle, thereby making the first side have a larger visible range, which is conducive to realizing the shareability of the display panel 10.

[0101] In some embodiments, at least a portion of the second light absorbing portion 412 is located on the second side of the first light emitting portion 131 to absorb light emitted from the second side by the first light emitting portion 131 at an angle greater than the second angle. The second side and the first side are opposite sides of the first light emitting portion 131 in the first direction. Exemplarily, the second light emitting angle is equal to the first light emitting angle, or the second light emitting angle is greater than the first light emitting angle. In this embodiment, when the display panel 10 is in the first state, both sides of the first light emitting portion 131 in the first direction have a smaller visible range, which helps improve the privacy protection of the display panel 10 in the first direction.

[0102] In some embodiments, at least a portion of the second light absorbing portion 412 is located on a third side of the first light emitting portion 131 to absorb light emitted from the first light emitting portion 131 on the third side at an angle greater than the third light emitting angle. Exemplarily, at least a portion of the second light absorbing portion 412 is located on a fourth side of the first light emitting portion 131 to absorb light emitted from the first light emitting portion 131 on the fourth side at an angle greater than the fourth light emitting angle. The third side and the fourth side are opposite sides of the first light emitting portion 131 in a second direction perpendicular to the first direction. Exemplarily, the third light emitting angle and the fourth light emitting angle are both equal to the first light emitting angle.

[0103] In some embodiments, as shown in FIG2 , the second light absorbing portion 412 is formed as an annular light absorbing portion, and the orthographic projection of the annular light absorbing portion along the thickness direction surrounds the first light emitting portion 131. The display panel 10 in this embodiment has a smaller visible range in the direction surrounding the first light emitting portion 131, so that the display panel 10 has good anti-peeping properties.

[0104] In the above embodiment, the shape of the annular light absorbing portion is adapted to the shape of the first light emitting portion 131. For example, in an embodiment in which the first light emitting portion 131 is formed as a rectangular light emitting portion, the annular light absorbing portion is formed as a rectangular ring structure. In an embodiment in which the first light emitting portion 131 is formed as a circular light emitting portion, the annular light absorbing portion is formed as a circular ring structure.

[0105] In some possible embodiments, the first light-emitting portion 131 and the second light-emitting portion 132 are arranged along a first direction. For example, the first light-emitting portion 131 and the second light-emitting portion 132 have the same or similar structures, for example, both are circular or rectangular. In some embodiments, the second light-emitting portion 132 is located on a second side of the first light-emitting portion 131 in the first direction, where the second side and the first side are opposite sides of the first light-emitting portion 131.

[0106] In some possible embodiments, the second light-emitting portion 132 is formed into a ring structure, and the second light-emitting portion 132 is arranged around the first light-emitting portion 131. In this embodiment, the second light-emitting portion 132 and the first light-emitting portion 131 are more integrated, occupy less space, and help improve the resolution of the display panel 10. Exemplarily, the first light-emitting portion 131 is a rectangular light-emitting portion, and the second light-emitting portion 132 is formed into a rectangular ring structure. Alternatively, the first light-emitting portion 131 is formed into a circular light-emitting portion, and the second light-emitting portion 132 is formed into a circular ring structure.

[0107] In some embodiments, the display panel 10 is an OLED display panel, and the first light-emitting portion 131 and the second light-emitting portion 132 are both organic light-emitting diodes (OLEDs), such as organic small molecule light-emitting materials, complex light-emitting materials, high molecular polymers, etc. For example, as shown in FIG5 , FIG5 shows a schematic diagram of the local structure of the display panel 10 after being cut along its thickness direction in one embodiment of the present application. In addition to the light-emitting sub-pixels 103, the light-emitting layer 1 of the display panel 10 also includes related structures for realizing light emission in the display panel 10. For example, the light-emitting layer 1 also includes a substrate 104, an anode and a cathode on both sides of the first light-emitting portion 131 and the second light-emitting portion 132 (not shown in the figure), a pixel definition layer 105 (PDL), etc. The light-emitting sub-pixels 103 and the pixel definition layer 105 are both arranged on the substrate 104. The substrate 104 is made of any material such as glass, ceramics, plastic, metal or rubber, and this application does not limit this. Exemplarily, the substrate 104 is made of a flexible material, such as a polyimide material, so that the substrate 104 can be bent and deformed. The display panel 10 using the substrate 104 can meet the usage requirements of the foldable electronic device 1000.

[0108] In some embodiments, the pixel definition layer 105 is made of an opaque material and has multiple openings formed therein. Each opening corresponds to the first light-emitting portion 131 and the second light-emitting portion 132 of the light-emitting sub-pixel 103. The anodes of the first light-emitting portion 131 and the second light-emitting portion 132, which are connected to the pixel control circuit 101, are located on the side facing the substrate 104 and are located within the openings defined by the pixel definition layer. The cathodes of the first light-emitting portion 131 and the second light-emitting portion 132 are located on the side facing away from the substrate 104. The cathodes have at least sufficient light transmittance to allow light emitted by the first light-emitting portion 131 and the second light-emitting portion 132 to be emitted through their corresponding cathodes.

[0109] In some embodiments, the display panel 10 further includes an encapsulation layer 2 disposed on the light-emitting side of the light-emitting layer 1. The encapsulation layer 2 is used to encapsulate and protect the light-emitting layer 1 and also provides a flat surface on the light-emitting side of the light-emitting layer 1, facilitating the processing and arrangement of other structures. In some embodiments, the encapsulation layer 2 includes a first inorganic layer, an organic layer, and a second inorganic layer.

[0110] In some embodiments, the display panel 10 further includes a touch layer 3, and the touch layer 3 includes related structures for realizing the touch function of the display panel 10. In some possible implementations, the touch layer 3 uses mutual capacitance touch technology to realize touch control of the display panel 10, or the touch layer 3 uses self-capacitive touch technology to realize touch control of the display panel 10. Exemplarily, the touch layer 3 may include an insulating layer and a first wiring layer and a second wiring layer that are spaced apart. The insulating layer may be made of an inorganic insulating material such as silicon nitride and silicon oxide, or may be made of an organic insulating material such as a polymer organic material and a resin material. The insulating layer made of an inorganic insulating material is widely used in the display panel 10 due to its lightness and thinness. In some embodiments, the first wiring layer and the second wiring layer may each be a different electrode (for example, one is an Rx electrode and the other is a Tx electrode), and the two electrodes are respectively in two layers. This design can be called a non-bridge touch solution.

[0111] As shown in Figure 5, in some possible embodiments, the light absorbing layer 4 further includes a flat layer 402, which covers the side of the light absorbing portion 401 away from the light emitting layer 1. The flat layer 402 can perform a flattening treatment (or called a leveling treatment) on the side of the light absorbing layer 4 away from the light emitting layer 1 to facilitate the formation of subsequent structures on the light-emitting side of the flat layer 402, for example, to facilitate the arrangement of a polarizer on the light-emitting side of the flat layer 402, or to facilitate the formation of a microlens on the light-emitting side of the flat layer 402.

[0112] In some embodiments, the planarization layer 402 includes a first planarization layer 402 and a second planarization layer 402. The first planarization layer 402 covers the first light absorbing portion 411. The second light absorbing portion 412 is formed on the light-emitting side of the first planarization layer 402. The second planarization layer 402 covers the second light absorbing portion 412. Thus, the first planarization layer 402 can provide a flat surface on the side of the first light absorbing portion 411 facing away from the light-emitting layer 1, facilitating the subsequent formation of the second light absorbing portion 412. The second planarization layer 402 can provide a flat surface on the side of the second light absorbing portion 412 facing away from the light-emitting layer 1, facilitating the placement of subsequent structures (e.g., polarizers or microlenses).

[0113] As shown in FIG6 , FIG6 shows a partial schematic diagram of a display panel 10 provided in a thickness direction according to an embodiment of the present application. The display panel 10 satisfies the following relationship: θ1≥arcsin(sinα / N);

[0114] Wherein, α is the first light ray exit angle, and illustratively, the first light ray exit angle ranges from 30° to 60°. The first critical angle θ1 is the angle between the line connecting the end of the first light emitting portion 131 away from the second light absorbing portion 412 in the first direction and the end of the second light absorbing portion 412 on the end surface facing away from the light emitting layer 1 and close to the first light emitting portion 131, and the thickness direction. N is the average refractive index, where the average refractive index N refers to the ratio of the sine value of the light ray exit angle to the sine value of the angle between the light ray and the thickness direction when it is emitted from the first light emitting portion 131. The average refractive index N is used to reflect the refractive index of the light emitted by the first light emitting portion 131 after it is emitted from the light emitting surface. It should be noted that the light emitted by the first light emitting portion 131 will be refracted when passing through subsequent structural layers (such as the encapsulation layer 2, the touch layer 3 or the flat layer 402, etc.). The material of each structural layer is different, and the refractive index of the structural layer is also different. Therefore, the average refractive index N can be calculated based on the refractive index of specific structural layers within the display panel 10, or the average refractive index N can be measured through a light simulation experiment. For example, in an embodiment where the display panel 10 includes an encapsulation layer 2, the encapsulation layer 2 is located on the light-emitting surface of the light-emitting layer 1, and the average refractive index N is equal to the refractive index of the encapsulation layer 2.

[0115] The display panel 10 in the above embodiment also satisfies the following relationship: (WAP+outBM) / (H1)>tan(θ1)

[0116] Among them, WAP is the size of the first light-emitting portion 131 in the first direction, outBM is the distance between the first light-emitting portion 131 and the light-absorbing portion 401 in the first direction. For example, in an embodiment where the light-absorbing portion includes a first light-absorbing portion 411 and a second light-absorbing portion 412, outBM is the distance between the first light-emitting portion 131 and the second light-absorbing portion 412 in the first direction, and H1 is the distance between the end of the second light-absorbing portion 412 facing away from the light-emitting layer 1 and the first light-emitting portion 131 in the thickness direction.

[0117] As shown in FIG6 , when light is emitted from the first light-emitting portion 131 at an angle greater than the first critical angle θ1, the light greater than the first critical angle θ1 is absorbed by the second light-absorbing portion 412, thereby preventing the light greater than the first critical angle θ1 from being emitted from the light-emitting surface of the display panel 10. This eliminates light greater than the first light-emitting angle on the light-emitting surface of the display panel 10, reduces the visible range of the display panel 10, and improves privacy protection. By determining the first light-emitting angle α, the average refractive index N, and the size of the first light-emitting portion 131 in the first direction through the above-described relationship, the distance outBM between the first light-emitting portion 131 and the second light-absorbing portion 412 in the first direction and the distance H1 between the end of the second light-absorbing portion 412 facing away from the light-emitting layer 1 and the first light-emitting portion 131 in the thickness direction can be obtained. This allows the position and size of the second light-absorbing portion 412 to be designed to meet the light absorption requirements.

[0118] In the above embodiment, the display panel 10 illustratively satisfies the relationship H1=H2+HBM, where HBM is the distance in the thickness direction between the end surface of the second light absorbing portion 412 facing away from the light-emitting layer 1 and the end surface of the first light absorbing portion 411 facing the light-emitting layer 1. H2 is the distance in the thickness direction between the end surface of the first light absorbing portion 411 facing the light-emitting layer 1 and the first light-emitting portion 131. In an embodiment where the display panel 10 includes an encapsulation layer 2 and a touch layer 3, H2 is the distance in the thickness direction between the light-emitting surface of the touch layer 3 and the first light-emitting portion 131.

[0119] As shown in FIG7 , in some possible implementations, the display panel 10 further satisfies the following relationship: θ2 ≥ arcsin (sinβ / N);

[0120] Where β is the critical emission angle. It should be noted that when the emission angle of light is greater than the critical emission angle, the light is totally reflected within the display panel 10 and cannot exit the display panel 10. Generally speaking, the critical emission angle β is 90°. The second critical angle θ2 is the angle between the line connecting the end of the first light-emitting portion 131 in the first direction closer to the first light-absorbing portion 411 and the end of the first light-absorbing portion 411 facing the end surface of the light-emitting layer 1 farther from the first light-emitting portion 131, and the thickness direction. N is the average refractive index.

[0121] In the above embodiment, when the light emitted by the first light-emitting portion 131 with a light angle greater than the second critical angle θ2 enters the light-emitting surface of the display panel 10, the corresponding emission angle of the light is greater than the critical emission angle. Therefore, the light is totally reflected inside the display panel 10 and cannot be emitted from the display panel 10, thereby preventing the light from interfering with the display effect of the display panel 10.

[0122] Exemplarily, referring to FIG. 7 , the display panel 10 also satisfies the following relationship: (outBM+WBM) / (H2)>tan(θ2)

[0123] Wherein, outBM is the distance between the first light-emitting portion 131 and the light-absorbing portion 401 in the first direction, and WBM is the dimension of the light-absorbing portion 401 between the first light-emitting portion 131 and the second light-absorbing portion 132 in the first direction. For example, in an embodiment where the light-absorbing portion 401 includes a first light-absorbing portion 411 and a second light-absorbing portion 412, outBM is the distance between the first light-emitting portion 131 and the second light-absorbing portion 412 in the first direction, and WBM is the total dimension of the first light-absorbing portion 411 and the second light-absorbing portion 412 in the first direction. H2 is the distance between the end surface of the light-absorbing portion 401 facing the light-emitting layer 1 and the first light-emitting portion 131 in the thickness direction. For example, H2 is the distance between the end surface of the first light-absorbing portion 411 facing the light-emitting layer 1 and the first light-emitting portion 131 in the thickness direction. In an embodiment where the display panel 10 includes an encapsulation layer 2 and a touch layer 3, H2 is the distance between the light-emitting surface of the touch layer 3 and the first light-emitting portion 131 in the thickness direction.

[0124] 7 to 9 , the value of outBM+WBM is equal to the sum of the distance between the first light emitting portion 131 and the first light absorbing portion 411 and the size of the first light absorbing portion 411 in the first direction. Therefore, the above formula can also be expressed as: (outBM1+WBM1) / (H2)>tan(θ2)

[0125] OutBM1 is the distance between the first light emitting portion 131 and the first light absorbing portion 411 in the first direction, and WBM1 is the size of the first light absorbing portion 411 in the first direction.

[0126] As shown in FIG7 , in the above embodiment, when light emitted from the first light-emitting portion 131 is emitted at an angle greater than the second critical angle θ2, the corresponding exit angle of the light is greater than the critical exit angle, and thus is totally reflected within the display panel 10 and cannot exit the display panel 10. However, when light is emitted from the first light-emitting portion 131 at an angle less than the second critical angle θ2, all light less than the second critical angle θ2 can be absorbed by the first light-absorbing portion 411, thereby completely eliminating light greater than the first light exit angle on the light-emitting surface of the display panel 10, reducing the visible range of the display panel 10, and improving privacy protection.

[0127] As shown in FIG8 , in some possible implementations, the display panel 10 satisfies the following relationship:

[0128] θ3 ≥ arcsin(sinβ / N);

[0129] Among them, β is the critical emission angle, illustratively, β = 90°, the third critical angle θ3 is the angle between the line connecting the end of the first light-emitting portion 131 away from the second light-absorbing portion 412 in the first direction and the end of the second light-absorbing portion 412 facing away from the first light-emitting portion 131 on the end face of the light-emitting layer 1 and the thickness direction, and N is the average refractive index.

[0130] In the above embodiment, the display panel 10 also satisfies the following relationship: (WAP+outBM2+WBM2) / (H3)>tan(θ3)

[0131] Among them, WAP is the size of the first light-emitting portion 131 in the first direction, outBM2 is the distance between the first light-emitting portion 131 and the second light-absorbing portion 412 in the first direction, WBM2 is the size of the second light-absorbing portion 412 in the first direction, and H3 is the distance between the end face of the second light-absorbing portion 412 facing the light-emitting layer 1 and the first light-emitting portion 131 in the thickness direction.

[0132] In this embodiment, when the light emitted by the first light-emitting portion 131 and having a light angle greater than the third critical angle θ3 enters the light-emitting surface of the display panel 10, the corresponding emission angle of the light is greater than the critical emission angle. Therefore, the light is totally reflected inside the display panel 10 and cannot be emitted from the display panel 10, thereby preventing the light from interfering with the display effect of the display panel 10.

[0133] As shown in FIG. 9 , in some exemplary embodiments, the display panel 10 further satisfies the following relationship: arctan(outBM1 / H4)≤arctan((outBM2+WBM2) / (H3))

[0134] Wherein, outBM1 is the distance between the first light absorbing portion 411 and the first light emitting portion 131 in the first direction, outBM2 is the distance between the second light absorbing portion 412 and the first light emitting portion 131 in the first direction, WBM2 is the size of the second light absorbing portion 412 in the first direction, H3 is the distance between the end surface of the second light absorbing portion 412 facing the light emitting layer 1 and the first light emitting portion 131 in the thickness direction, and H4 is the distance between the end surface of the first light absorbing portion 411 facing away from the light emitting layer 1 and the first light emitting portion 131 in the thickness direction. In the above embodiment, light emitted by the first light emitting portion 131 that is less than the second critical angle θ2 and greater than the first critical angle θ1 is completely absorbed by the first light absorbing portion 411 or the second light absorbing portion 412, and no light is emitted from between the first light absorbing portion 411 and the second light absorbing portion 412. This ensures that the light absorbing portion 401 has a good absorption rate for light with an angle greater than the first light emission angle.

[0135] In some possible embodiments, as shown in FIG10 , the display panel 10 further includes a microlens 403. The microlens 403 is disposed corresponding to the first light-emitting portion 131 and is located on the light-emitting side of the first light-emitting portion 131. The orthographic projection of the microlens 403 along the thickness direction at least partially overlaps with the first light-emitting portion 131. The microlens 403 can converge light. When the light emitted by the first light-emitting portion 131 passes through the corresponding microlens 403, it can be at least partially converged toward the normal (axis, center line) of the microlens 403 itself. The microlens 403 converges the light emitted by the corresponding first light-emitting portion 131, making the light more concentrated, facilitating the light to exit the light-absorbing layer 4, and improving the light extraction efficiency of the light emitted by the first light-emitting portion 131. In practical applications, the position of the microlens 403 can be adaptively adjusted according to the light emission path of the light from the first light-emitting portion 131 to cover the light emission path of the first light-emitting portion 131 as comprehensively as possible.

[0136] In some embodiments, the first light absorbing portion 411 is located on the light-emitting side of the microlens 403. Light emitted from the first light-emitting portion 131 can first pass through the converging effect of the microlens 403 before passing through the light-absorbing layer 4. The converged light is more likely to pass through the light-absorbing layer 4, thereby improving light extraction efficiency. In other embodiments, the microlens 403 is arranged on the same layer as the first light absorbing portion 411. The microlens 403 is located in the opening 4111 in the first light absorbing portion 411 corresponding to the first light-emitting portion 131. The microlens 403 can not only converge the light, but also does not need to occupy a separate structural layer, which helps simplify the structure of the display panel 10. In other embodiments, the microlens 403 is located on the side of the first light absorbing portion 411 facing away from the light-emitting layer 1, and the second light absorbing portion 412 is located on the light-emitting side of the microlens 403.

[0137] In the display panel 10, external ambient light enters the display panel 10 and is reflected, which may cause the user to be unable to clearly view the content on the display panel 10. To reduce the impact of ambient light on the display content of the display panel 10, in some embodiments, as shown in Figures 5 to 10, the display panel 10 is provided with a polarizer, which is located on the light-emitting side of the light-absorbing layer 4. The polarizer is used to absorb ambient light entering the display panel 10 and prevent the ambient light from being reflected and emitted from the display panel 10 and affecting the displayed content.

[0138] In other solutions, the industry has proposed the technology of forming a color filter on a thin film encapsulation structure (CF on TFE, COE). COE technology is a new technology that can replace polarizers. By making the color filter on the thin film encapsulation (TFE) layer, and utilizing the characteristics of the color filter that transmits light of a specific spectrum and absorbs light of other spectrums, it is possible to suppress ambient light, so that the display panel 10 can also clearly display content in strong light environments such as outdoors. Exemplarily, the display panel 10 includes a microlens 6, and the microlens 6 is located on the light-emitting side of the light-absorbing layer 4. Alternatively, as shown in Figure 11, the microlens 6 is arranged on the same layer as the second light-absorbing portion 412, which can reduce the overall thickness of the display panel 10.

[0139] In some embodiments, the display panel 10 further includes a cover plate 7, which is located on the light-emitting side of the polarizer or microlens 6. The cover plate 7 can provide support and protection for the display panel 10. The cover plate 7 can be a glass cover plate 7 or a flexible film cover plate 7 (e.g., a transparent polyimide cover plate 7).

[0140] As shown in Figure 12, in some possible embodiments, the pixel control circuit 101 includes a main control circuit 111, a first branch 112 and a second branch 113 connected in parallel, the output end of the main control circuit 111 is electrically connected to the input end of the first branch 112 and the input end of the second branch 113, respectively, the first branch 112 is provided with a first light-emitting portion 131, and the second branch 113 is provided with a transistor switch T9 and a second light-emitting portion 132 connected in series.

[0141] In the above embodiment, when the transistor switch T9 on the second branch 113 is off, the display panel 10 is in the first state, the main control circuit 111 is in conduction with the first light-emitting portion 131, and controls the first light-emitting portion 131 to emit light, making the display panel 10 privacy-protected on the first side. When the transistor switch T9 on the second branch 113 is on, the display panel 10 is in the second state, the main control circuit 111 is in conduction with the first light-emitting portion 131 and the second light-emitting portion 132, respectively, and controls the first light-emitting portion 131 and the second light-emitting portion 132 to emit light simultaneously, making the display panel 10 shareable.

[0142] In addition, since the first branch 112 and the second branch 113 are connected in parallel with each other, when the transistor switch T9 is turned on, the input current of the main control circuit 111 is divided between the first branch 112 and the second branch 113. Compared with the use state in which the transistor switch T9 is disconnected, the current on the first branch 112 is reduced, and the brightness of the first light-emitting portion 131 is weakened as the current decreases, which is beneficial to extending the service life of the first light-emitting portion 131, avoiding the brightness of the display panel 10 being too high after the second light-emitting portion 132 and the first light-emitting portion 131 are lit at the same time, and maintaining the display brightness of the display panel 10 to be close in the first state and the second state.

[0143] As shown in Figure 12, illustratively, the above-mentioned main control circuit 111 is an 8T1C circuit. The 8T1C circuit refers to a circuit composed of 8 T1C units. T1C is a dual-transmitter circuit that has the ability to store and process charges. Each T1C unit includes a transmitter and a capacitor. In the 8T1C circuit, 8 T1C units are combined together in a specific connection method to form an integral circuit. The 8T1C circuit can be used to store and process data, thereby realizing the reset, compensation and light control functions of the light-emitting sub-pixel 103. The 8T1C pixel circuit has the characteristics of continuous light emission, low power consumption and long life of the light-emitting component, and has become the mainstream for realizing high-quality OLED display panels.

[0144] Exemplarily, the transistor switch T9 is one of a hydrogenated amorphous silicon (a-Si:H) transistor switch T9, a low-temperature polysilicon (LTPS) transistor switch T9, and an amorphous oxide silicon (AOS) transistor switch T9.

[0145] In some exemplary embodiments, the display panel 10 includes a plurality of light-emitting sub-pixels 103. The plurality of light-emitting sub-pixels 103 may form a plurality of pixel groups 102. Each pixel group 102 includes at least one red light-emitting sub-pixel, at least one green light-emitting sub-pixel, and at least one blue light-emitting sub-pixel. Thus, each pixel group 102 includes light-emitting sub-pixels 103 of three colors. A pixel group 102 can adjust the red, green, and blue light-emitting sub-pixels within it using a three-color ratio to display different colors at the location of the pixel group 102. It should be noted that the above-mentioned pixel group 102 is not limited to a fixed combination method, but means that any light-emitting sub-pixel 103 can form a pixel group 102 with the light-emitting sub-pixels 103 of the other two colors adjacent to it, for example, the adjacently arranged first red light-emitting sub-pixel, the first green light-emitting sub-pixel, the first blue light-emitting sub-pixel and the second red light-emitting sub-pixel, wherein the first red light-emitting sub-pixel, the first green light-emitting sub-pixel, and the first blue light-emitting sub-pixel constitute a pixel group 102, and the first green light-emitting sub-pixel, the first blue light-emitting sub-pixel and the second red light-emitting sub-pixel also constitute a pixel group 102.

[0146] There are various arrangements of the multiple light-emitting sub-pixels 103 within each pixel group 102. In some embodiments, each pixel group 102 includes a red light-emitting sub-pixel, a green light-emitting sub-pixel, and a blue light-emitting sub-pixel arranged in a triangle. This triangular arrangement of one red light-emitting sub-pixel, one green light-emitting sub-pixel, and one blue light-emitting sub-pixel allows adjacent pixel groups 102 to share at least one light-emitting sub-pixel, thereby improving the resolution of the display panel 10.

[0147] In other embodiments, each pixel group 102 includes one red light-emitting sub-pixel, two green light-emitting sub-pixels, and one blue light-emitting sub-pixel, and the red light-emitting sub-pixels, two green light-emitting sub-pixels, and one blue light-emitting sub-pixel are arranged in a square. Two green light-emitting sub-pixels are provided in the pixel group 102. If any green light-emitting sub-pixel is worn out, the other green light-emitting sub-pixel can still provide green light, thereby improving the service life of the display panel 10. Furthermore, adjacent pixel groups 102 can share at least two light-emitting sub-pixels (e.g., two green light-emitting sub-pixels), thereby improving the resolution of the display panel 10.

[0148] For ease of understanding, a specific embodiment of the display panel 10 of the present application is described below with reference to the accompanying drawings.

[0149] Figure 2 shows the first embodiment of the present application, and Figures 13 and 14 show the second and third embodiments of the present application respectively. The first, second and third embodiments all have the following features: the first light-emitting portion 131 and the second light-emitting portion 132 are arranged in sequence in the first direction, the first light-emitting portion 131 and the second light-emitting portion 132 are both formed as rectangular light-emitting portions, the second light-absorbing portion 402 is formed as an annular light-absorbing portion, and the annular light-absorbing portion is arranged around the first light-emitting portion 131. In the display panel 10 of the above embodiment, the pixel group 102 includes red light-emitting sub-pixels, green light-emitting sub-pixels and green light-emitting sub-pixels arranged in a triangular shape.

[0150] In the first embodiment, as shown in FIG2 , there is a gap between the projection of the second light absorbing portion 412 on the light emitting layer 1 along the thickness direction and the second light emitting portion 132. The second light absorbing portion 412 has little effect on the light of the second light emitting portion 132, ensuring that the light of the second light emitting portion 132 has a larger visible range, and the second light emitting portion 132 in each light emitting sub-pixel 103 is located on the second side of its corresponding first light emitting portion 131. For example, in the scenario of application to a personal computer, the first direction is the up and down direction of the display panel 10 in use, and the second side of the display panel 10 is the side of the display panel 10 close to the computer keyboard.

[0151] In the second embodiment, as shown in FIG13 , the projection of the second light absorbing portion 412 on the light emitting layer 1 along the thickness direction is close to the second light emitting portion 132 , making the structure of the light emitting sub-pixel 103 more compact, which is beneficial to improving the resolution of the display panel 10 .

[0152] In the third embodiment, as shown in Figure 14, the light-emitting sub-pixels 103 in the pixel group 102 are divided into two columns, wherein the second light-emitting portion 132 in the light-emitting sub-pixels 103 in one column is located on the first side of its corresponding first light-emitting portion 131, and the second light-emitting portion 132 in the light-emitting sub-pixels 103 in the other column is located on the second side of its corresponding first light-emitting portion 131. In this way, the relative positions of the first light-emitting portion 131 and the second light-emitting portion 132 of the light-emitting sub-pixels 103 in different columns are opposite, which is conducive to achieving light compensation on both sides and avoiding excessive difference in light quantity between the first side and the second side, so that the display panel 10 has close brightness on both the first side and the second side.

[0153] Figures 15 and 16 illustrate the fourth and fifth embodiments of the present application, respectively. Both embodiments have the following features: a first light-emitting portion 131 and a second light-emitting portion 132 are arranged sequentially in a first direction, each forming a rectangular shape. The orthographic projections of the second light-absorbing portion 412 on the light-emitting layer 1 are located on the first, third, and fourth sides of the first light-emitting portion 131, respectively. For example, in a personal computer application, the first direction is the vertical direction of the display panel 10 when in use, and the second side of the display panel 10 is the side of the display panel 10 closest to the computer keyboard. The need for privacy protection on the second side is minimal, eliminating the need for the second light-absorbing portion 412, thereby simplifying the manufacturing process. In the fifth embodiment, as shown in Figure 16 , the first light-emitting portion 131 can be divided into two sub-light-emitting portions, with at least a portion of the orthographic projection of the second light-absorbing portion 412 on the light-emitting layer 1 located between the two sub-light-emitting portions. This further improves privacy protection on the third and fourth sides.

[0154] Figures 17 and 18 respectively illustrate the sixth and seventh embodiments of the present application, in which the first light-emitting portion 131 and the second light-emitting portion 132 are arranged sequentially in a first direction. In the sixth embodiment, as shown in FIG7 , the first light-emitting portion 131 and the second light-emitting portion 132 are circular light-emitting portions, and the second light-absorbing portion 412 is formed as a ring-shaped light-absorbing portion. In the seventh embodiment, as shown in FIG8 , the first light-emitting portion 131 and the second light-emitting portion 132 are elliptical light-emitting portions, and the long axis of the first light-emitting portion 131 is perpendicular to the long axis of the second light-emitting portion 132. The orthographic projection of the second light-absorbing portion 412 on the light-emitting layer 1 is located on the first side, the third side, and the fourth side of the first light-emitting portion 131, respectively.

[0155] Figures 19 to 22 respectively illustrate the eighth, ninth, tenth, and eleventh embodiments of the present application. The eighth, ninth, tenth, and eleventh embodiments all have the following features: the second light-emitting portion 132 is formed as an annular light-emitting portion, the second light-absorbing portion 412 is formed as an annular light-absorbing portion, the annular light-absorbing portion surrounds the first light-emitting portion 131, and the second light-emitting portion 132 surrounds the second light-absorbing portion 412 and the first light-absorbing portion 411. In the eighth and ninth embodiments, the first light-emitting portion 131 is a rectangular light-emitting portion, and the second light-emitting portion 132 is a rectangular annular light-emitting portion.

[0156] In the eighth embodiment, within the pixel group 102, the plurality of light-emitting sub-pixels 103 are arranged in a triangular pattern. In the ninth embodiment, within the pixel group 102, the plurality of light-emitting sub-pixels 103 are arranged in a quadrilateral pattern. In the tenth and eleventh embodiments, the first light-emitting portion 131 is a circular light-emitting portion, and the second light-emitting portion 132 is a ring-shaped light-emitting portion. In the tenth embodiment, within the pixel group 102, the plurality of light-emitting sub-pixels 103 are arranged in a triangular pattern. In the eleventh embodiment, within the pixel group 102, the plurality of light-emitting sub-pixels 103 are arranged in a quadrilateral pattern.

[0157] Based on the display panel 10 provided in the above embodiment, the present application further provides a method for manufacturing the display panel 10, the manufacturing method comprising:

[0158] A light-emitting layer 1 is formed, wherein the light-emitting layer 1 includes a pixel control circuit 101 and a light-emitting sub-pixel 103. The light-emitting sub-pixel 103 includes a first light-emitting portion 131 and a second light-emitting portion 132. The pixel control circuit 101 is electrically connected to the first light-emitting portion 131 and the second light-emitting portion 132 to selectively turn on the first light-emitting portion 131 and / or the second light-emitting portion 132.

[0159] A light absorbing layer 4 is formed, and the light absorbing layer 4 is arranged on the light-emitting side of the light-emitting layer 1. The light absorbing layer 4 includes a first light absorbing portion 411 and a second light absorbing portion 412. A plurality of openings 4111 are formed on the first light absorbing portion 411. The orthographic projection of the plurality of openings 4111 along the thickness direction of the display panel 10 covers the first light-emitting portion 131 and the second light-emitting portion 132. The second light absorbing portion 412 is located on a side of the first light absorbing portion 411 away from the light-emitting layer 1. At least a portion of the second light absorbing portion 412 is located on a first side of the first light-emitting portion 131 in a first direction perpendicular to the thickness direction, so as to absorb light emitted by the first light-emitting portion 131 on the first side, the light having an exit angle greater than the first light exit angle.

[0160] Exemplarily, forming the light-emitting layer 1 specifically includes: forming a pixel driving circuit on the substrate 104 , forming a pixel definition layer 105 by an evaporation process, and forming light-emitting sub-pixels 103 on the pixel definition layer 105 .

[0161] Illustratively, after forming the light-emitting layer 1 , the manufacturing method further includes: forming an encapsulation layer 2 on the light-emitting side of the light-emitting layer 1 , and forming a touch layer 3 on the light-emitting side of the encapsulation layer 2 .

[0162] Exemplarily, forming the light absorbing layer 4 specifically includes: fabricating the light absorbing layer 4 through a coating and photolithography process. A first light absorbing portion 411 is fabricated through the coating and photolithography process. A first planar layer 402 is coated on the light-exiting side of the touch layer 3 and the light-exiting side of the first light absorbing portion 411. A second light absorbing portion 412 is fabricated through a coating and photolithography process on the light-exiting side of the first planar layer 402. A second planar layer 402 is coated on the second light absorbing portion 412 and the light-exiting side of the first planar layer 402.

[0163] Illustratively, the above manufacturing method further includes: sequentially laminating a polarizer and a cover plate 7 on the light-emitting side of the light-absorbing layer 4 .

[0164] The above are only some of the embodiments and implementations of this application. The scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A display panel (10), characterized in that: include: A light-emitting layer (1) comprises a pixel control circuit (101) and a light-emitting sub-pixel (103), wherein the light-emitting sub-pixel (103) comprises a first light-emitting portion (131) and a second light-emitting portion (132), and the pixel control circuit (101) is electrically connected to the first light-emitting portion (131) and the second light-emitting portion (132) to selectively turn on the first light-emitting portion (131) and / or the second light-emitting portion (132); A light absorbing layer (4) is located on the light-emitting side of the light-emitting layer (1), and the light absorbing layer (4) includes a first light absorbing portion (411) and a second light absorbing portion (412). The first light absorbing portion (411) covers the light-emitting side of the light-emitting layer (1), and a plurality of openings (4111) are formed on the first light absorbing portion (411). The plurality of openings (4111) cover the first light-emitting portion (131) and the second light-emitting portion (132) in a positive projection along the thickness direction of the display panel (10). The second light absorbing portion (412) is located on a side of the first light absorbing portion (411) facing away from the light-emitting layer (1), and at least a portion of the second light absorbing portion (412) is located on a first side of the first light-emitting portion (131) in a first direction perpendicular to the thickness direction, so as to absorb light emitted by the first light-emitting portion (131) on the first side, the light having an exit angle greater than the first light exit angle.

2. The display panel (10) according to claim 1, characterized in that The first light absorbing portion (411) and the second light absorbing portion (412) are at least partially staggered in the first direction, and the spacing between the first light absorbing portion (411) and the first light emitting portion (131) in the first direction is greater than the spacing between the second light absorbing portion (412) and the first light emitting portion (131) in the first direction.

3. The display panel (10) according to claim 1 or 2, characterized in that: The second light absorbing portion (412) is formed as an annular light absorbing portion, and the orthographic projection of the annular light absorbing portion in the thickness direction surrounds the first light emitting portion (131).

4. The display panel (10) according to any one of claims 1 to 3, characterized in that: The first light-emitting portion (131) and the second light-emitting portion (132) are arranged along the first direction; Alternatively, the second light-emitting portion (132) is formed into a ring structure, and the second light-emitting portion (132) is arranged around the first light-emitting portion (131).

5. The display panel (10) according to any one of claims 1 to 4, characterized in that: The pixel control circuit (101) comprises a main control circuit (111), a first branch (112) and a second branch (113) connected in parallel with each other; the output end of the main control circuit (111) is electrically connected to the input end of the first branch (112) and the input end of the second branch (113), respectively; the first branch (112) is provided with the first light-emitting portion (131), and the second branch (113) is provided with a transistor switch (T9) and the second light-emitting portion (132) connected in series with each other.

6. The display panel (10) according to any one of claims 1 to 5, wherein the light absorbing layer (4) comprises a flat layer (402), and the flat layer (402) covers a side of the first light absorbing portion (411) facing away from the light emitting layer (1) and a side of the second light absorbing portion (412) facing away from the light emitting layer (1).

7. The display panel (10) according to any one of claims 1 to 6, characterized in that: The display panel (10) comprises a microlens (403), the microlens (403) being arranged corresponding to the first light-emitting portion (131) and located on the light-emitting side of the first light-emitting portion (131), and the orthographic projection of the microlens (403) along the thickness direction at least partially overlapping with the first light-emitting portion (131).

8. The display panel (10) according to claim 7, characterized in that The microlens (403) is arranged in the same layer as the first light absorbing portion (411), and the microlens (403) is located in the opening (4111) corresponding to the first light emitting portion (131) in the first light absorbing portion (411); Alternatively, the microlens (403) is located on a side of the first light absorbing portion (411) facing away from the light emitting layer (1), and the second light absorbing portion (412) is located on a light emitting side of the microlens (403).

9. The display panel (10) according to any one of claims 1 to 8, characterized in that: The display panel (10) comprises a polarizer (5), and the polarizer (5) is located on the light-emitting side of the light-absorbing layer (4).

10. The display panel (10) according to any one of claims 1 to 8, characterized in that: The display panel (10) comprises a color filter layer (6), wherein the color filter layer (6) is located on the light-emitting side of the light-absorbing layer (4), or the color filter layer (6) and the second light-absorbing portion (412) are arranged in the same layer.

11. The display panel (10) according to any one of claims 1 to 10, characterized in that: The light-emitting sub-pixels (103) include red light-emitting sub-pixels (R), green light-emitting sub-pixels (B), and blue light-emitting sub-pixels (G), and the display panel (10) includes a plurality of pixel groups (102); Each pixel group (102) includes a red light-emitting sub-pixel (R), a green light-emitting sub-pixel (B), and a blue light-emitting sub-pixel (G) arranged in a triangle, or each pixel group (102) includes a red light-emitting sub-pixel (R), two green light-emitting sub-pixels (G), and a blue light-emitting sub-pixel (B) arranged in a square.

12. The display panel (10) according to any one of claims 1 to 11, characterized in that: The range of the first light emission angle is 30° to 60°.

13. The display panel (10) according to any one of claims 1 to 12, characterized in that: The display panel (10) satisfies the following relationship: θ1≥arcsin(sinα / N); wherein α is the first light emission angle, the first critical angle θ1 is the angle between the line connecting the end of the first light-emitting portion (131) away from the second light-absorbing portion (412) in the first direction and the end of the second light-absorbing portion (412) facing away from the light-emitting layer (1) and close to the first light-emitting portion (131) and the thickness direction, and N is the average refractive index; The display panel (10) also satisfies the following relationship: (WAP+outBM2) / (H1)>tan(θ1) Wherein, WAP is the size of the first light-emitting portion (131) in the first direction, outBM2 is the distance between the first light-emitting portion (131) and the second light-absorbing portion (412) in the first direction, and H1 is the distance between the end face of the second light-absorbing portion (412) facing away from the light-emitting layer (1) and the first light-emitting portion (131) in the thickness direction.

14. The display panel (10) according to any one of claims 1 to 13, characterized in that: The display panel (10) satisfies the following relationship: θ2≥arcsin(sinβ / N); Wherein, β is the critical emission angle, the second critical angle θ2 is the angle between the line connecting the end of the first light-emitting portion (131) close to the first light-absorbing portion (411) in the first direction and the end of the first light-absorbing portion (411) on the end surface facing the light-emitting layer (1) away from the first light-emitting portion (131) and the thickness direction, and N is the average refractive index; The display panel (10) also satisfies the following relationship: (outBM1+WBM1) / (H2)>tan(θ2) Wherein, outBM1 is the distance between the first light-emitting portion (131) and the first light-absorbing portion (411) in the first direction, WBM1 is the size of the first light-absorbing portion (411) in the first direction, and H2 is the distance between the end face of the first light-absorbing portion (411) facing the light-emitting layer (1) and the first light-emitting portion (131) in the thickness direction.

15. The display panel (10) according to any one of claims 1 to 14, characterized in that: The display panel (10) satisfies the following relationship: θ3≥arcsin(sinβ / N); wherein β is a critical emission angle, a third critical angle θ3 is an angle between a line connecting an end of the first light-emitting portion (131) away from the second light-absorbing portion (412) in the first direction and an end of the second light-absorbing portion (412) on the end surface facing the light-emitting layer (1) away from the first light-emitting portion (131) and the thickness direction, and N is an average refractive index; The display panel (10) also satisfies the following relationship: (WAP+outBM2+WBM2) / (H3)>tan(θ3) Wherein, WAP is the size of the first light-emitting portion (131) in the first direction, outBM2 is the distance between the first light-emitting portion (131) and the second light-absorbing portion (412) in the first direction, WBM2 is the size of the second light-absorbing portion (412) in the first direction, and H3 is the distance between the end face of the second light-absorbing portion (412) facing the light-emitting layer (1) and the first light-emitting portion (131) in the thickness direction.

16. The display panel (10) according to any one of claims 1 to 15, characterized in that: The display panel (10) also satisfies the following relationship: arctan(outBM1 / H4)≤arctan((outBM2+WBM2) / (H3)) wherein, outBM1 is the distance between the first light absorbing portion (411) and the first light emitting portion (131) in the first direction, outBM2 is the distance between the second light absorbing portion (412) and the first light emitting portion (131) in the first direction, WBM2 is the size of the second light absorbing portion (412) in the first direction, H3 is the distance between the end face of the second light absorbing portion (412) facing the light emitting layer (1) and the first light emitting portion (131) in the thickness direction, and H4 is the distance between the end face of the first light absorbing portion (411) facing away from the light emitting layer (1) and the first light emitting portion (131) in the thickness direction.

17. A display screen module (100), characterized in that: It comprises a display panel (10) according to any one of claims 1 to 16 and a flexible circuit board (20), wherein the flexible circuit board (20) is electrically connected to the display panel (10).

18. An electronic device, characterized in that: include: Control circuit board (30); as well as The display screen module (100) according to claim 17, wherein the flexible circuit board (20) in the display screen module (100) is used to connect the control circuit board (30) and the display panel (10).

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