Display panel, display device and control method thereof

Abstract

The application discloses a display panel, a display device and a control method thereof. The display panel comprises a first display area and a second display area; the display panel comprises a light-emitting layer and a first optical structure layer; the light-emitting layer comprises a plurality of light-emitting devices, and the plurality of light-emitting devices are located in the first display area; the first optical structure layer is arranged on one side of the light-emitting layer, and the first optical structure layer comprises a first light adjusting part; the first light adjusting part at least overlaps with part of the light-emitting devices in the projection direction perpendicular to the light-emitting layer, and is used for adjusting part of the emitted light of the light-emitting devices to be emitted from the second display area. According to the embodiments provided in the application, the display panel, the display device and the control method thereof provided in the application can emit the light emitted by part of the light-emitting devices from the second display area through the first light adjusting part, so that the light-emitting display of the second display area can be realized without arranging the light-emitting devices in the second display area, and the integrity of the displayed image of the display panel is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel, a display device, and a control method thereof. Background Technology

[0002] In electronic products such as mobile phones and tablets, full-screen displays are gradually becoming mainstream due to their screen-to-body ratio, which can reach over 90%. Full-screen displays achieve a high screen-to-body ratio by placing photosensitive elements such as cameras, flashes, infrared sensors, or fingerprint recognition modules under the screen. In existing technologies, relatively sparse light-emitting devices are placed in the area corresponding to the photosensitive element to allow that area to emit light normally. While external light can pass through the gaps between the light-emitting devices to enter the photosensitive element, the light-emitting devices in this area still block some light, causing diffraction and affecting the operation of the photosensitive element. Summary of the Invention

[0003] This application provides a display panel, a display device, and a control method thereof, with the aim of solving the technical problem that light is easily diffracted when passing through the area corresponding to the photosensitive element in an existing display panel, thereby affecting the operation of the photosensitive element.

[0004] An embodiment of the first aspect of this application provides a display panel including a first display area and a second display area. The first display area is at least partially disposed around the second display area, and the light transmittance of the first display area is less than that of the second display area. The display panel includes a light-emitting layer and a first optical structure layer. The light-emitting layer includes a plurality of light-emitting devices, which are located in the first display area. The first optical structure layer is disposed on one side of the light-emitting layer and includes a first dimming section. The projection of the first dimming section along a direction perpendicular to the light-emitting layer overlaps with at least a portion of the light-emitting devices. The first dimming section is used to adjust a portion of the emitted light from the light-emitting devices to be emitted from the second display area.

[0005] According to an embodiment of the first aspect of this application, the first dimming unit includes a first light guide, the first light guide forming a first opening around the second display area, and the first opening being at least partially located in the second display area.

[0006] According to any of the foregoing embodiments of the first aspect of this application, the first dimming unit is located in the first display area.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the diameter of the first opening gradually increases along the direction from the light-emitting layer to the first optical structure layer.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the projection edge of the first light guide member along the direction perpendicular to the light-emitting layer is adjacent to the edge of the second display area.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the first optical structure layer further includes an encapsulation layer, which covers the light-emitting layer and the first opening.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the first optical structure layer further includes a light-shielding member disposed on the side of the first light guide member away from the second display area.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the surface of the light-shielding member near the first light guide member is a mirror-reflective surface.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the surface of the light-shielding member away from the first light guide member extends along the thickness direction of the display panel.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a second optical structure layer disposed on the side of the first optical structure layer away from the light-emitting layer. The second optical structure layer includes a second dimming unit. The projection of the second dimming unit on the first optical structure layer at least partially overlaps with the first dimming unit, so that a portion of the emitted light emitted from the first dimming unit enters the second dimming unit. The second dimming unit is used to adjust the portion of the received emitted light emitted from the second display area.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the projection of the second dimming unit along the direction perpendicular to the light-emitting layer is located in the projection of the first dimming unit along the direction perpendicular to the light-emitting layer.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the second dimming unit includes a second light guide member, the second light guide member forming a second opening around the second opening, the second opening being at least partially located in the second display area.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the second dimming unit is located in the first display area.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the diameter of the second opening gradually increases along the direction from the light-emitting layer to the second optical structure layer.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the projection boundary of the second light guide in the direction perpendicular to the light-emitting layer overlaps with the projection boundary of the first light guide in the direction perpendicular to the light-emitting layer.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the projection edge of the second light guide member along the direction perpendicular to the light-emitting layer is adjacent to the edge of the second display area.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a touch layer disposed on the side of the second optical structure layer near the first optical structure layer.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the second optical structure layer further includes a protective layer covering the touch layer and the second opening.

[0022] An embodiment of the second aspect of this application also provides a display device, which includes a photosensitive element and a display panel according to any one of the first aspects described above, wherein the projection of the photosensitive element along the thickness direction of the display panel is located within a second display area of ​​the display device.

[0023] An embodiment of the third aspect of this application also provides a control method for a display device, applied to the display device of the second aspect described above, wherein a plurality of light-emitting devices include a plurality of first light-emitting devices and a plurality of second light-emitting devices, the plurality of second light-emitting devices being located on the side of the plurality of first light-emitting devices near a second display area, the method comprising:

[0024] When the display device is in display mode and the photosensitive element is not turned on, control the light-emitting device and the second light-emitting device to emit light together;

[0025] When the display device is in display mode and the photosensitive element is turned on, the light-emitting device is controlled to not emit light, and the second light-emitting device is controlled to emit light.

[0026] In the display panel, display device, and control method provided in this application embodiment, by providing a first dimming unit and ensuring that the projection of the first dimming unit along the direction perpendicular to the light-emitting layer overlaps with at least a portion of the light-emitting devices, the first dimming unit can adjust the light emitted by a portion of the light-emitting devices to be emitted from the second display area. This allows the second display area to emit light even without any light-emitting devices present. When the photosensitive component is not working, the light emitted by a portion of the light-emitting devices is emitted from the second display area, enabling the entire display panel to be displayed, thus improving the overall integrity of the displayed image. When the photosensitive component is working, a portion of the light-emitting devices does not emit light, allowing external light to pass through the second display area to the photosensitive component. Since no light-emitting devices are needed in the second display area, diffraction phenomena caused by light blocking by the light-emitting devices are avoided, improving the working quality of the photosensitive element. Attached Figure Description

[0027] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of a display panel provided in the first aspect embodiment of this application;

[0029] Figure 2 This is a cross-sectional structural schematic diagram of a display panel provided in the first aspect embodiment of this application;

[0030] Figure 3 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0031] Figure 4 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0032] Figure 5 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0033] Figure 6 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0034] Figure 7 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0035] Figure 8 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0036] Figure 9 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application;

[0037] Figure 10 This is a cross-sectional structural schematic diagram of a display device provided in the second aspect of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Display panel; 20. Photosensitive element; 100. Display device; A. First display area; B. Second display area; m. First ray; n. Second ray; CL1. Central axis of the second display area; CL2. Central axis of the first opening; CL3. Central axis of the second opening;

[0040] 1. Light-emitting layer; 11. Light-emitting device;

[0041] 2. First optical structure layer; 21. First dimming unit; 211. First light guide; 24. Light shield; 212. First opening; 23. Encapsulation layer;

[0042] 3. Second optical structure layer; 31. Second dimming section; 311. Second light guide; 312. Second opening; 33. Protective layer;

[0043] 4. Touch layer.

[0044] Specific implementation methods

[0045] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0047] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0048] In electronic products such as mobile phones and tablets, full-screen displays are gradually becoming mainstream due to their screen-to-body ratio, which can reach over 90%. Full-screen displays achieve a high screen-to-body ratio by placing photosensitive elements such as cameras, flashes, infrared sensors, or fingerprint recognition modules under the screen. In existing technologies, relatively sparse light-emitting devices are placed in the area corresponding to the photosensitive element to allow that area to emit light normally. While external light can pass through the gaps between the light-emitting devices to enter the photosensitive element, the light-emitting devices in this area still block some light, causing diffraction and affecting the operation of the photosensitive element.

[0049] To address the aforementioned issues, this application provides a display panel, a display device, and a control method thereof. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel, display device, and control method thereof.

[0050] Please refer to Figure 1 and Figure 2 The first aspect of this application provides a display panel 10, which includes a first display area A and a second display area B. The first display area A is at least partially disposed around the second display area B, and the light transmittance of the first display area A is less than the light transmittance of the second display area B. The display panel 10 includes a light-emitting layer 1 and a first optical structure layer 2. The light-emitting layer 1 includes a plurality of light-emitting devices 11, which are located in the first display area A. The first optical structure layer 2 is disposed on one side of the light-emitting layer 1 and includes a first dimming part 21. The projection of the first dimming part 21 along a direction perpendicular to the light-emitting layer 1 overlaps with at least a portion of the light-emitting devices 11. The first dimming part 21 is used to adjust a portion of the emitted light from the light-emitting devices 11 to be emitted from the second display area B.

[0051] The multiple light-emitting devices 11 can be light-emitting devices capable of emitting light of different colors. The multiple light-emitting devices 11 may include a red light-emitting device capable of emitting red light, a green light-emitting device capable of emitting green light, and a blue light-emitting device capable of emitting blue light. For example, in this embodiment, an organic light-emitting diode (OLED) can be selected to fabricate the above-mentioned light-emitting devices. Alternatively, in this embodiment, the light-emitting unit can also be a micro light-emitting diode (Micro-LED) or a quantum light-emitting diode (QLED).

[0052] No light-emitting devices are disposed in the second display area B, so that the light transmittance of the second display area B is greater than that of the first display area A. Compared with the first display area A, the side of the second display area B facing away from the light-emitting surface of the display panel 10 is provided with a photosensitive element such as a camera to sense light emitted from the backlight side of the display panel 10 through the light-emitting surface side. In related technologies, light-emitting devices are disposed in the second display area, and the distribution density of the light-emitting devices in the second display area is set to be less than that in the first display area, so that the light transmittance of the second display area B is greater than that of the first display area A. The display panel 10 provided in this application does not have light-emitting devices disposed in the second display area B, so the second display area B provided in this application has better light transmittance compared with related technologies that include light-emitting devices in the second display area.

[0053] The projection of the first dimming unit 21 along the direction perpendicular to the light-emitting layer 1 overlaps with at least a portion of the light-emitting devices 11. The light emitted by the portion of the light-emitting devices 11 can be adjusted to exit from the second display area B under the action of refraction, reflection and other effects of the first dimming unit 21. For example, the first light ray m emitted by the light-emitting device 11 enters the first dimming unit 21 and is refracted and directed towards the second display area B.

[0054] In the display panel 10 provided in this application embodiment, by providing a first dimming unit 21 and ensuring that the projection of the first dimming unit 21 along the direction perpendicular to the light-emitting layer 1 overlaps with at least a portion of the light-emitting devices 11, the first dimming unit 21 can adjust the light emitted by a portion of the light-emitting devices 11 to be emitted from the second display area B. Thus, the second display area B can be illuminated and displayed even without any light-emitting devices. When the photosensitive component is not working, the light emitted by a portion of the light-emitting devices 11 is emitted from the second display area B, so that the entire display panel 10 can be displayed, improving the overall integrity of the image displayed on the display panel 10. When the photosensitive component is working, a portion of the light-emitting devices 11 does not emit light, so that external light can be emitted from the second display area B to the photosensitive component. Since no light-emitting devices 11 need to be provided in the second display area B, diffraction phenomena caused by the light-emitting devices 11 blocking the light are avoided, improving the working quality of the photosensitive element.

[0055] In some embodiments, the first dimming unit 21 includes a first light guide 211, the first light guide 211 forming a first opening 212 around the perimeter, and the first opening 212 being at least partially located in the second display area B.

[0056] The emitted light from the light-emitting device 11 is refracted by the first light guide 211, thereby allowing part of the emitted light from the light-emitting device 11 to exit from the second display area B through the first light guide 211. External light can exit from the second display area B into the photosensitive element through the first opening 212, thereby avoiding or reducing the influence of the first light guide 211 on the light entering the photosensitive element.

[0057] Those skilled in the art will understand that the first dimming unit 21 is made of a light-transmitting material, so external light can pass through the first dimming unit 21 from the second display area B into the photosensitive element. Therefore, those skilled in the art can, as needed, place the first dimming unit 21 in the first display area A and / or the second display area B. Please refer to... Figure 3 In some embodiments, the first dimming unit 21 is located in the first display area A, so that external light does not pass through the first dimming unit 21 when it is emitted from the second display area B through the first opening 212, thereby avoiding the influence of the first dimming unit 21 on the operation of the photosensitive element.

[0058] In other embodiments, the diameter of the first opening 212 gradually increases along the direction from the light-emitting layer 1 to the first optical structure layer 2. Clearly, the gradual increase in the diameter of the first opening 212 means that the side surface of the first dimming unit 21 defining the first opening 212, extending along the thickness direction of the display panel, is inclined relative to the plane containing the light-emitting layer 1. This allows light entering the first dimming unit 21 from the light-emitting layer 1 to be refracted from the side surface of the first opening 212 defined by the first dimming unit 21 and move towards the central axis of the second display area B. For example, the cross-section of the first opening 212 along the thickness direction of the display panel 10 can be trapezoidal, meaning that the surface of the first opening 212 defined by the first dimming unit 21 is planar in this cross-section. Due to limitations in actual manufacturing processes, the surface of the first opening 212 defined by the first dimming unit 21 can also be curved.

[0059] In other embodiments, please refer to Figure 4 The first light guide 211 is adjacent to the edge of the second display area B along the projection edge perpendicular to the direction of the light-emitting layer 1. That is, the first light guide 211 is located in the first display area A and adjacent to the edge of the second display area B. This can effectively adjust part of the emitted light from the light-emitting device 11 near the second display area B to be emitted from the second display area B, without interfering with the external light passing through the second display area B.

[0060] In other embodiments, the central axis CL2 of the first opening 212 and the central axis CL1 of the second display area B are collinearly arranged, and the first light guide 211 is symmetrically arranged about the central axis CL1 of the second display area B, so that the symmetrical parts of the first light guide 211 about the central axis CL2 have the same or similar light adjustment ability, thereby improving the uniformity of light emission from the second display area B.

[0061] In some embodiments of this application, the first optical structure layer 2 further includes an encapsulation layer 23, which covers the light-emitting layer 1 and the first opening 212. The encapsulation layer 23 covers the light-emitting layer 1 to protect the plurality of light-emitting devices 11 included in the light-emitting layer 1. The encapsulation layer 23 may at least reuse a portion of the first dimming section 21 to reduce the overall thickness of the display panel 10.

[0062] In some embodiments of this application, please refer to Figure 5 The first optical structure layer 2 also includes a light-shielding member 24, which is disposed on the side of the first light guide member 211 away from the second display area B. When the light-emitting device 11 near the second display area B is not emitting light, the light-shielding member 24 can block the light emitted by the light-emitting device 11 away from the second display area B from passing through the first light guide member 211 into the second display area B, so that external light can reach the photosensitive component through the second display area B, thereby avoiding or reducing the influence of the light emitted by the light-emitting device 11 on the photosensitive component.

[0063] In other embodiments of this application, the surface of the light-shielding member 24 near the first light guide member 211 is a specular reflective surface. In this embodiment, the light entering the first light guide member 211 can still be emitted from the first light guide member 211 after being reflected by the light-shielding member 24, thereby improving the utilization rate of light from the light-emitting device 11 used for emitting light in the second display area B.

[0064] In other embodiments of this application, the surface of the light-shielding member 24 away from the first light guide member 211 extends along the thickness direction of the display panel 10. Since the emitted light from the light-emitting device 11 has a certain angle, along the thickness direction of the display panel 10, part of the light emitted by the light-emitting device 11 located below the light-shielding member 24 enters the second display area B through the first light guide member 211, while the other part of the light is emitted directly from the first display area A. Meanwhile, part of the light emitted by the light-emitting device 11 located on the side of the light-emitting device 11 away from the second display area B is blocked by the light-shielding member 24, while the other part of the light is emitted directly from the first display area A. By setting the surface of the light-shielding member 24 away from the first light guide member 211 to extend along the thickness direction of the display panel 10, it is ensured that the light emitted by the light-emitting device 11 used for emitting light in the first display area A is emitted from the first display area A with maximum efficiency.

[0065] Please refer to some embodiments of this application. Figure 6 The display panel 10 also includes a second optical structure layer 3, which is disposed on the side of the first optical structure layer 2 away from the light-emitting layer 1. The second optical structure layer 3 includes a second dimming part 31. The projection of the second dimming part 31 on the first optical structure layer 2 at least partially overlaps with the first dimming part 21, so that part of the emitted light emitted from the first dimming part 21 enters the second dimming part 31. The second dimming part 31 is used to adjust the received part of the emitted light emitted from the second display area B.

[0066] A second optical structure layer 3 is provided to receive a portion of the light emitted from the first dimming section 21 and adjust it further. The light emitted by the light-emitting device 11 can be deflected to a larger angle before exiting the second display area B, allowing the second display area B to have a larger area. Furthermore, with the first optical structure layer 2 and the second optical structure layer 3 having a relatively thin thickness, the luminous intensity of the central and edge areas of the second display area B is consistent. For example, the second light ray n emitted by the light-emitting device 11 enters the first dimming section 21, is refracted, and then enters the second dimming section 31. After refraction on the surface of the second dimming section 31, it is directed towards the second display area B.

[0067] The first dimming unit 21 and the second dimming unit 31 can be made of the same material or different materials. Similarly, the first dimming unit 21 and the second dimming unit 31 can have different refractive indices or the same refractive index. Those skilled in the art can choose according to their needs.

[0068] In other embodiments of this application, the projection of the second dimming unit 31 along the direction perpendicular to the light-emitting layer 1 is located within the projection of the first dimming unit 21 along the direction perpendicular to the light-emitting layer 1. That is, the size of the second dimming unit 31 is less than or equal to the size of the second dimming unit 31, so that the second dimming unit 31 does not affect the light emitted from the light-emitting device 11 used for display in the first display area A from the first display area A.

[0069] In other embodiments of this application, the second dimming unit 31 includes a second light guide 311, which surrounds a second opening 312, and the second opening 312 is at least partially located in the second display area B.

[0070] The emitted light from the light-emitting device 11 is refracted by the second light guide 311, thereby allowing part of the emitted light from the light-emitting device 11 to exit from the second display area B through the second light guide 311. External light can exit from the second display area B into the photosensitive element through the second opening 312 and the first opening 212, thereby reducing the influence of the second light guide 311 on the light entering the photosensitive element.

[0071] In other embodiments of this application, the second dimming unit 31 is located in the first display area A. The location of the second dimming unit 31 in the first display area A ensures that external light emanating from the second display area B through the second opening 312 does not pass through the second dimming unit 31, thereby avoiding any impact of the second dimming unit 31 on the operation of the photosensitive element.

[0072] In other embodiments of this application, the diameter of the second opening 312 gradually increases along the direction from the light-emitting layer 1 to the second optical structure layer 3. Similar to the first opening 212, the diameter of the second opening 312 gradually increases, that is, the surface of the second dimming unit 31 defining the second opening 312 is inclined relative to the plane where the light-emitting layer 1 is located, so that after light enters the second dimming unit 31 from the first dimming unit 21, the light will be refracted out from the surface of the second dimming unit 31 defining the second opening 312 and move closer to the central axis of the second display area B.

[0073] In other embodiments of this application, please refer to Figure 7 The projection boundary of the second light guide 311 along the direction perpendicular to the light-emitting layer 1 overlaps with the projection boundary of the first light guide 211 along the direction perpendicular to the light-emitting layer 1. That is, the size of the second light guide 311 is equal to the size of the first light guide 211. On the one hand, the second dimming part 31 will not affect the light emitted by the light-emitting device from the first display area A. On the other hand, it can reduce or avoid the influence of the second light guide 311 on the entry of external light into the second display area B.

[0074] In other embodiments of this application, please refer to Figure 8The second light guide 311 is adjacent to the edge of the second display area B along the projection edge perpendicular to the direction of the light-emitting layer 1. This arrangement, where the second light guide 311 is located in the first display area A and adjacent to the edge of the second display area B, can effectively adjust part of the emitted light from the light-emitting device 11 near the second display area B to be emitted from the second display area B, without interfering with the external light passing through the second display area B and entering the photosensitive element.

[0075] In other embodiments of this application, the central axis CL3 of the second opening 312 is collinear with the central axis CL1 of the second display area B, and the second light guide 311 is symmetrically arranged about the central axis CL1 of the second display area B, so that the symmetrical portions of the second light guide 311 about the central axis CL3 have the same or similar light adjustment capabilities, thereby improving the uniformity of light emission from the second display area B.

[0076] In other embodiments of this application, please refer to Figure 9 The display panel 10 also includes a touch layer 4, which is disposed on the side of the second optical structure layer 3 near the first optical structure layer 2. The touch layer 4 receives touch operations from the user on the display panel 10. Multiple touch electrodes are disposed in the touch layer 4, and the touch electrodes are made of a transparent material to allow light emitted from the light-emitting layer 1 to pass through. The touch layer 4 located in the second display area B may not have touch electrodes to increase the transmittance of light from the second display area B.

[0077] The second optical structure 3 also includes a protective layer 33, which covers the touch layer 4 and the second opening 312 to protect the touch layer 4. The protective layer 33 can reuse at least a portion of the second dimming section 31 to reduce the overall thickness of the display panel 10.

[0078] The second aspect of this application also provides a display device 100, please refer to... Figure 10 The display device 100 includes a photosensitive element 20 and a display panel 10 as described in the first aspect above. The projection of the photosensitive element 20 along the thickness direction of the display panel 10 is located within the second display area B of the display device 100.

[0079] For example, the photosensitive element 20 may be a camera module. The display device 100 provided in this application embodiment has the aforementioned structure of the display panel 10. Refer to the display panel 10 provided in the above embodiments; it possesses all the beneficial effects of the aforementioned display panel 10, which will not be repeated here.

[0080] An embodiment of the third aspect of this application also provides a control method for a display device, applied to the display device of the second aspect described above, wherein a plurality of light-emitting devices include a plurality of first light-emitting devices and a plurality of second light-emitting devices, the plurality of second light-emitting devices being located on the side of the plurality of first light-emitting devices near a second display area, the method comprising:

[0081] S1, when the display device is in display mode and the photosensitive element is not turned on, control the first light-emitting device and the second light-emitting device to emit light together;

[0082] S2, when the display device is in display mode and the photosensitive element is turned on, control the first light-emitting device to not emit light, and control the second light-emitting device to emit light.

[0083] It is understandable that when the display device is in non-display mode, both the first and second light-emitting devices will not emit light.

[0084] The embodiments described above are not exhaustive and do not limit the invention to specific examples. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized by, The display panel comprises a first display area and a second display area, the first display area is at least partially arranged around the second display area, and light transmittance of the first display area is less than that of the second display area; the display panel comprises: a light-emitting layer comprising a plurality of light-emitting devices, the plurality of light-emitting devices being located in the first display area; a first optical structure layer arranged on one side of the light-emitting layer, the first optical structure layer comprising a first light-adjusting portion, a projection of the first light-adjusting portion along a direction perpendicular to the light-emitting layer at least partially overlapping with a projection of part of the light-emitting devices, the first light-adjusting portion being configured to adjust part of emitted light from the light-emitting devices to be emitted from the second display area; the first light-adjusting portion comprising a first light guide member, the first light guide member surrounding a first opening, the first opening being at least partially located in the second display area, the first optical structure layer further comprising a light-blocking member, the light-blocking member being arranged on a side of the first light guide member away from the second display area.

2. The display panel of claim 1, wherein, The first light-adjusting portion is located in the first display area.

3. The display panel of claim 1, wherein, An aperture of the first opening gradually increases along a direction from the light-emitting layer to the first optical structure layer.

4. The display panel of claim 1, wherein, A projection edge of the first light guide member along a direction perpendicular to the light-emitting layer is adjacent to an edge of the second display area.

5. The display panel of claim 1, wherein, The first optical structure layer further comprises an encapsulation layer, the encapsulation layer covering the light-emitting layer and the first opening.

6. The display panel of claim 1, wherein, A surface of the light-blocking member close to the first light guide member is a mirror surface.

7. The display panel of claim 1, wherein, A surface of the light-blocking member away from the first light guide member extends along a thickness direction of the display panel.

8. The display panel of claim 1, wherein, The display panel further comprises: a second optical structure layer arranged on a side of the first optical structure layer away from the light-emitting layer, the second optical structure layer comprising a second light-adjusting portion, a projection of the second light-adjusting portion on the first optical structure layer at least partially overlapping with the first light-adjusting portion, so that part of emitted light from the first light-adjusting portion enters the second light-adjusting portion, the second light-adjusting portion being configured to adjust part of the emitted light received to be emitted from the second display area.

9. The display panel of claim 8, wherein, A projection of the second light-adjusting portion along a direction perpendicular to the light-emitting layer is located in a projection of the first light-adjusting portion along a direction perpendicular to the light-emitting layer.

10. The display panel of claim 8, wherein, The second light-adjusting portion comprises a second light guide member, the second light guide member surrounding a second opening, the second opening being at least partially located in the second display area.

11. The display panel of claim 10, wherein, The second light-adjusting portion is located in the first display area.

12. The display panel of claim 10, wherein, An aperture of the second opening gradually increases along a direction from the light-emitting layer to the second optical structure layer.

13. The display panel of claim 10, wherein, A projection boundary of the second light guide member along a direction perpendicular to the light-emitting layer overlaps with a projection boundary of the first light guide member along a direction perpendicular to the light-emitting layer.

14. The display panel of claim 10, wherein, A projection edge of the second light guide member along a direction perpendicular to the light-emitting layer is adjacent to an edge of the second display area.

15. The display panel of claim 10, wherein, The display panel further comprises a touch layer, the touch layer being arranged on a side of the second optical structure layer close to the first optical structure layer.

16. The display panel of claim 15, wherein, The second optical structure layer further comprises a protective layer, the protective layer covering the touch layer and the second opening.

17. A display device comprising: comprises: the display panel of any one of claims 1 to 16; A photosensitive element, a projection of which in a thickness direction of the display panel is located in the second display area of the display device.

18. A control method of a display device, applied to the display device according to claim 17, the plurality of light emitting devices further comprising a plurality of first light emitting devices and a plurality of second light emitting devices, the plurality of second light emitting devices being located on a side of the plurality of first light emitting devices close to the second display area, characterized in that, The method comprises: In a case where the display device is in a display mode and a photosensitive element is not turned on, the first light emitting device and the second light emitting device are controlled to emit light together; In a case where the display device is in a display mode and a photosensitive element is turned on, the first light emitting device is controlled not to emit light, and the second light emitting device is controlled to emit light.

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