Display panel and display device

Abstract

The application relates to a display panel and a display device, the display panel comprising a substrate, a light-emitting functional layer, a light color conversion layer and a color film layer, the light-emitting functional layer being arranged on one side of the substrate, the light-emitting functional layer comprising a plurality of light-emitting structures. The light color conversion layer is arranged on the side of the light-emitting functional layer away from the substrate, the light color conversion layer comprising a plurality of light adjusting parts, the light adjusting parts being arranged correspondingly to the light-emitting structures, part of the light adjusting parts being used for changing the light-emitting color of the light-emitting structures, the light-emitting device comprising the light-emitting structures and the light adjusting parts arranged correspondingly to the light-emitting structures. The display panel comprises a first light-emitting device, the first light-emitting device comprising a first light-emitting structure, the light-emitting color of the first light-emitting device being the same as the light-emitting color of the first light-emitting structure, and the orthographic projection of the first light-emitting device on the substrate overlapping the orthographic projection of the photosensitive element on the substrate. In the embodiment of the application, the display panel can improve the photosensitive accuracy of the photosensitive element when being installed in cooperation with the photosensitive element.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices. Summary of the Invention

[0003] The display panel and display device provided in this application embodiment can improve the light-sensing accuracy of the photosensitive element when installed in conjunction with the photosensitive element.

[0004] In a first aspect, embodiments of this application provide a display panel, which is installed in conjunction with a photosensitive element. The display panel includes multiple light-emitting devices, a substrate, a light-emitting functional layer, a light-color conversion layer, and a color filter layer. The light-emitting functional layer is disposed on one side of the substrate and includes multiple light-emitting structures. The light-color conversion layer is disposed on the side of the light-emitting functional layer opposite to the substrate and includes multiple light-adjusting parts, which are correspondingly disposed with the light-emitting structures. Some of the light-adjusting parts are used to change the emitted light color of the light-emitting structures. The light-emitting devices include light-emitting structures and light-adjusting parts corresponding to the light-emitting structures. The color filter layer is disposed on the side of the light-color conversion layer opposite to the substrate and includes multiple light-filtering parts. The orthographic projections of the multiple light-filtering parts on the substrate overlap with the multiple light-emitting structures. The multiple light-emitting devices include a first light-emitting device, which includes a first light-emitting structure. The emitted color of the first light-emitting device is the same as the emitted color of the first light-emitting structure, and the orthographic projection of the first light-emitting device on the substrate overlaps with the orthographic projection of the photosensitive element on the substrate.

[0005] In some embodiments, the display panel includes a filter layer disposed between a first light-emitting structure and a photosensitive element, wherein the orthographic projection of the filter layer on the substrate overlaps with the orthographic projection of the photosensitive element on the substrate. Optionally, the first light-emitting structure emits blue light, and the filter layer includes a filter with a blue light-filtering color. Optionally, the display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer, and the filter is disposed between the first electrode layer and the photosensitive element. Optionally, the filter is disposed on the side of the substrate opposite to the first electrode layer. Optionally, the display panel further includes an insulating layer disposed between the first electrode layer and the substrate, the insulating layer having a through-hole structure, and at least a portion of the filter being located inside the through-hole structure.

[0006] In some embodiments, the display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer. The first electrode layer includes a plurality of first electrodes, each corresponding to a light-emitting structure. The first electrode corresponding to the first light-emitting structure includes a transparent material. Optionally, the first electrode includes at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires. Optionally, the display panel further includes a second electrode layer disposed on the side of the light-emitting functional layer facing away from the substrate. The portion of the second electrode layer overlapping the first light-emitting structure includes a transparent material. Optionally, the second electrode includes at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires. Optionally, the display panel further includes a pixel definition layer disposed on one side of the substrate. The pixel definition layer includes a pixel defining portion and a plurality of pixel openings enclosed by the pixel defining portion. The light-emitting structure is located inside the pixel openings, and the pixel defining portion includes a light-shielding material. Optionally, the photosensitive element includes an imaging sensor and a fingerprint recognition sensor.

[0007] In some embodiments, the first light-emitting device further includes a first light-adjusting section, wherein the orthographic projection of the first light-adjusting section on the substrate overlaps with the orthographic projection of the first light-emitting structure on the substrate. Optionally, the first light-adjusting section includes a transparent photoresist material. Optionally, the first light-adjusting section includes titanium dioxide particles or zirconium dioxide particles. Optionally, the first light-adjusting section includes a filter material, wherein the filter color of the first light-adjusting section is the same as the emission color of the first light-emitting structure. Optionally, the emission color of the first light-emitting structure is blue, and the filter color of the first light-adjusting section is blue.

[0008] In some embodiments, the plurality of light-emitting devices further include a second light-emitting device, which includes a second light-emitting structure. The emission color of the second light-emitting device is different from that of the second light-emitting structure, and the orthographic projection of the second light-emitting device on the substrate is located outside the orthographic projection of the photosensitive element on the substrate. Optionally, the emission color of the second light-emitting structure is the same as that of the first light-emitting structure. The second light-emitting device further includes a second light-adjusting section, the orthographic projection of the second light-adjusting section on the substrate overlapping the orthographic projection of the second light-emitting structure on the substrate, and the second light-adjusting section is used to change the emission color of the second light-emitting structure. Optionally, the emission color of both the second and first light-emitting structures is blue, and the second light-adjusting section includes a green light-adjusting section. Optionally, the plurality of light-emitting devices further include a third light-emitting device, which includes a third light-emitting structure. The emission color of the third light-emitting device is different from that of the third light-emitting structure, and the orthographic projection of the third light-emitting device on the substrate is located outside the orthographic projection of the photosensitive element on the substrate. Optionally, the emission color of the third light-emitting structure is the same as that of the first light-emitting structure. The third light-emitting device further includes a third light adjustment unit, the orthographic projection of the third light adjustment unit on the substrate overlapping the orthographic projection of the third light-emitting structure on the substrate, and the third light adjustment unit is used to change the emission color of the third light-emitting structure. Optionally, the emission color of both the third light-emitting structure and the first light-emitting structure is blue, and the third light adjustment unit includes a red light adjustment unit.

[0009] In some embodiments, the display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer. The first electrode layer includes a plurality of first electrodes, each corresponding to a light-emitting structure. The first electrode corresponding to the second light-emitting structure among the plurality of first electrodes includes a first reflective material. Optionally, the display panel further includes a second electrode layer disposed on the side of the light-emitting functional layer opposite to the substrate. The portion of the second electrode layer overlapping with the second light-emitting structure includes a second reflective material. Optionally, the reflectivity of the first reflective material is different from that of the second reflective material. Optionally, the plurality of light-emitting devices further includes a third light-emitting device, which includes a third light-emitting structure. The emission color of the third light-emitting device is different from that of the third light-emitting structure. The first electrode corresponding to the third light-emitting structure among the plurality of first electrodes includes a first reflective material. Optionally, the portion of the second electrode layer overlapping with the third light-emitting structure includes a second reflective material.

[0010] In some embodiments, the plurality of filter portions include a first filter portion, wherein the orthographic projection of the first filter portion on the substrate overlaps with the orthographic projection of the first light-emitting device on the substrate, and the emitted light color of the first filter portion is the same as the emitted light color of the first light-emitting device. Optionally, the first filter portion includes a transparent photoresist material. Optionally, the first filter portion includes titanium dioxide particles or zirconium dioxide particles. Optionally, the first filter portion includes a filter material, and the filter color of the first filter portion is the same as the emitted light color of the first light-emitting device. Optionally, the emitted light color of the first light-emitting device is blue, and the filter color of the first filter portion is blue.

[0011] In some embodiments, the display panel further includes an isolation layer, which includes an isolation portion and a plurality of isolation openings enclosed by the isolation portion, wherein the orthographic projection of the light-adjusting portion on the substrate overlaps with the orthographic projection of the isolation openings on the substrate. Optionally, the isolation portion includes a light-shielding material. Optionally, the isolation portion includes a white photoresist material. Optionally, the isolation portion includes titanium dioxide particles or zirconium dioxide particles. Optionally, at least a portion of the light-adjusting portion is located inside the isolation openings.

[0012] In some embodiments, the display panel further includes a light-shielding layer located on the side of the light-color conversion layer facing away from the substrate. The light-shielding layer includes a light-shielding portion and a plurality of light-shielding openings formed by the light-shielding portion. The orthographic projection of the light-filtering portion on the substrate overlaps with the orthographic projection of the light-shielding openings on the substrate. Optionally, at least a portion of the light-filtering portion is located inside the light-shielding openings. Optionally, the display panel further includes an encapsulation layer disposed between the light-emitting functional layer and the light-color conversion layer. Optionally, the display panel further includes a touch layer disposed between the light-color conversion layer and the color filter layer.

[0013] Secondly, embodiments of this application provide a display device, including a display panel provided in the first direction of embodiments of this application.

[0014] According to the display panel and display device provided in this application, the display panel and the photosensitive element are installed together and belong to the same display device. The display panel includes multiple light-emitting devices on the light-emitting layer. These light-emitting devices are the core components for image display, emitting light to present various images and text information. The display panel includes a substrate, a light-emitting functional layer, a light-color conversion layer, and a color filter layer on the layer structure. The light-emitting functional layer may include multiple light-emitting structures, and the light-color conversion layer includes multiple light-adjusting sections. The light-adjusting sections and the orthographic projections of the light-emitting structures on the substrate overlap, and some light-adjusting sections are used to change the emitted light color of the light-emitting structures. Each light-emitting device includes a light-emitting structure and a corresponding light-adjusting section. The light-emitting structure emits light of a specific color, which is emitted after being adjusted by the corresponding light-adjusting section. It is understood that the emitted color of the light-emitting structure is determined by itself, and the emitted color of the light-emitting device is determined by the emitted color of the light-emitting structure and the adjustment by the light-adjusting section. Multiple light-emitting devices are spaced apart on the substrate by orthographic projections, with at least different light-emitting devices corresponding to different colors of light. To improve the accuracy of the photosensitive element and reduce interference from stray light, during the installation of the photosensitive element and the display panel, the photosensitive element is positioned corresponding to the first light-emitting device, with the orthographic projection of the photosensitive element on the substrate overlapping the orthographic projection of the first light-emitting device on the substrate. This overlapping projection arrangement ensures straight-line propagation of light, reducing scattering and loss during propagation, thereby improving the accuracy of light sensing by the photosensitive element. Attached Figure Description

[0015] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0016] Figure 1 This application provides a schematic diagram of the structure of a display panel according to some embodiments;

[0017] Figure 2 A cross-sectional structural diagram of a display panel and a photosensitive element provided for some embodiments of this application;

[0018] Figure 3 A cross-sectional structural diagram of a display panel provided for some embodiments of this application;

[0019] Figure 4 A schematic diagram of the structure of a first electrode, a light-emitting structure, and a second electrode in a display panel provided in some embodiments of this application;

[0020] Figure 5 This is a schematic diagram illustrating the cooperative relationship between the light adjustment section and the isolation section in a display panel, which are provided in some embodiments of this application, and their influence on light transmission.

[0021] Marker explanation:

[0022] 100. Display panel; 101. First zone; 102. Second zone; 200. Photosensitive element;

[0023] 10. Substrate;

[0024] 20. Light-emitting functional layer; 21. Light-emitting structure; 211. First light-emitting structure; 212. Second light-emitting structure; 213. Third light-emitting structure;

[0025] 30. Light-color conversion layer; 31. Light adjustment unit; 311. First light adjustment unit; 312. Second light adjustment unit; 313. Third light adjustment unit;

[0026] 40. Color filter layer; 41. Filter section; 411. First filter section; 412. Second filter section; 413. Third filter section;

[0027] 50. Filter layer; 51. Optical filter;

[0028] 60. First electrode layer; 61. First electrode;

[0029] 70. Insulating layer; 71. Through-hole structure;

[0030] 80. Second electrode layer;

[0031] 90. Pixel definition layer; 91. Pixel definition section;

[0032] C1, isolation layer; C11, isolation section; C2, light-shielding layer; C21, light-shielding section; C3, encapsulation layer; C4, touch layer;

[0033] Q1, Light-emitting device; Q11, First light-emitting device; Q12, Second light-emitting device; Q13, Third light-emitting device;

[0034] X, thickness direction.

[0035] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0036] The features and exemplary embodiments of various aspects of this application will be described in detail below. 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 intended to explain this application and not to limit it. 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.

[0037] 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 other identical elements in the process, method, article, or apparatus that includes said element.

[0038] In some display devices, in order to achieve certain specific functions, the display panel usually needs to be installed and used in conjunction with a photosensitive element. For example, in full-screen mobile phones, the display panel is usually installed and used in conjunction with an under-display camera sensor and an under-display fingerprint recognition sensor.

[0039] Therefore, when installing a display panel and a photosensitive element together, it is necessary to improve the light-sensing accuracy of the photosensitive element.

[0040] In view of this, firstly, please refer to Figure 1 , Figure 2 and Figure 3 This application provides a display panel 100, which is installed in conjunction with a photosensitive element 200. The display panel 100 includes a plurality of light-emitting devices Q1. The display panel 100 includes a substrate 10, a light-emitting functional layer 20, a light-color conversion layer 30, and a color filter layer 40. The light-emitting functional layer 20 is disposed on one side of the substrate 10 and includes a plurality of light-emitting structures 21. The light-color conversion layer 30 is disposed on the side of the light-emitting functional layer 20 away from the substrate 10 and includes a plurality of light-adjusting parts 31. The light-adjusting parts 31 are correspondingly disposed with respect to the light-emitting structures 21, and some of the light-adjusting parts 31 are used to change the emitted light color of the light-emitting structures 21. The light-emitting device Q1 includes the light-emitting structure 21 and the light-adjusting parts 31 corresponding to the light-emitting structure 21. The color filter layer 40 is disposed on the side of the light-color conversion layer 30 away from the substrate 10 and includes a plurality of light-filtering parts 41. The orthographic projection of the plurality of light-filtering parts 41 on the substrate 10 overlaps with the plurality of light-emitting structures 21. Among them, the plurality of light-emitting devices Q1 include a first light-emitting device Q11, the first light-emitting device Q11 includes a first light-emitting structure 211, the light-emitting color of the first light-emitting device Q11 is the same as the light-emitting color of the first light-emitting structure 211, and the orthographic projection of the first light-emitting device Q11 on the substrate 10 overlaps with the orthographic projection of the photosensitive element 200 on the substrate 10.

[0041] In this embodiment, the display panel 100 and the photosensitive element 200 are installed together and belong to the same display device. For example, the display panel 100 and the photosensitive element 200 can be installed simultaneously in a full-screen mobile phone. The photosensitive element 200 can be set as a photosensitive sensor for under-display fingerprint recognition or a photosensitive sensor for under-display camera. Alternatively, the display panel 100 and the photosensitive element 200 can be installed simultaneously in an ambient light sensing display device. The ambient light sensing display device has the photosensitive element 200 disposed on the back of the display panel 100 to sense the intensity and color temperature of ambient light and feed the ambient light information back to the control system. The control system automatically adjusts the brightness and color temperature of the display panel 100 based on this information to optimize the display effect and save energy.

[0042] Specifically, the display panel 100 in this embodiment includes multiple light-emitting devices Q1 on the light-emitting layer. The light-emitting devices Q1 are the core components for the display panel 100 to display images. The light-emitting devices Q1 emit light to present various images and text information. At the same time, the display panel 100 in this embodiment includes a substrate 10, a light-emitting functional layer 20, a light color conversion layer 30, and a color filter layer 40 on the layer structure setting layer.

[0043] The substrate 10 is the structure of the display panel 100 used to support other film layers. The substrate 10 may include multiple film layer structures. For example, the substrate 10 may include stacked semiconductor layers, multiple conductor layers, and insulating layers located between adjacent conductor layers or between adjacent conductor layers and semiconductor layers. The specific composition of the film layer structures inside the substrate 10 is not limited in this embodiment. Both the multiple film layer structures inside the substrate 10 and the multiple film layer structures located outside the substrate 10 are stacked along the thickness direction X of the substrate 10. The thickness directions X of different film layer structures, the thickness direction X of the display panel 100, and the thickness direction X of the substrate 10 can be arranged parallel to each other. For ease of understanding, the thickness directions X of different film layer structures, the thickness direction X of the display panel 100, and the thickness direction X of the substrate 10 are all shown in the same direction in the accompanying drawings.

[0044] The display panel 100 also includes a light-emitting functional layer 20, which is disposed on one side of the substrate 10. The light-emitting functional layer 20 is a functional film layer in the display panel 100 used to achieve the display effect. The light-emitting functional layer 20 may include a plurality of light-emitting structures 21, and the orthogonal projections of the plurality of light-emitting structures 21 on the substrate 10 are spaced apart.

[0045] The display panel 100 also includes a light color conversion layer 30 disposed on the side of the light-emitting functional layer 20 facing away from the substrate 10. The light color conversion layer 30 includes a plurality of light adjustment sections 31, the orthographic projections of the plurality of light adjustment sections 31 on the substrate 10 are arranged at intervals, and the orthographic projections of the light-emitting structure 21 on the substrate 10 overlap with each other. Some of the light adjustment sections 31 are used to change the color of the light emitted by the light-emitting structure 21. The light-emitting device Q1 includes a light-emitting structure 21 and light adjustment sections 31 arranged corresponding to the structure of the light-emitting structure 21.

[0046] In this embodiment, the light-emitting structure 21 emits light of a specific color, which is emitted after being adjusted by the corresponding light adjustment unit 31. It is understood that the color of light emitted by the light-emitting structure 21 is determined by itself, and the color of light emitted by the light-emitting device Q1 is determined by the color of light emitted by the light-emitting structure 21 and the adjustment by the light adjustment unit 31. For example, when the light-emitting structure 21 emits blue light, and the corresponding light adjustment part 31 is set to a blue light adjustment part 31 or a transparent material, the light-emitting device Q1 also emits blue light. In this case, the light-emitting device Q1 emits the same light as the light-emitting structure 21. When the light-emitting structure 21 emits blue light, and the corresponding light adjustment part 31 is set to a red light adjustment part 31, the light-emitting device Q1 emits red light. In this case, the light-emitting device Q1 emits a different light than the light-emitting structure 21. Alternatively, when the light-emitting structure 21 emits blue light, and the corresponding light adjustment part 31 is set to a green light adjustment part 31, the light-emitting device Q1 emits green light. In this case, the light-emitting device Q1 emits a different light than the light-emitting structure 21.

[0047] Multiple light-emitting devices Q1 are orthographically projected and spaced apart on the substrate 10, with at least different light-emitting devices Q1 emitting light of different colors to achieve the multi-color display requirements of the display panel 100. Optionally, the multiple light-emitting devices Q1 include at least one of a blue light-emitting device Q1 for emitting blue light, a red light-emitting device Q1 for emitting red light, and a green light-emitting device Q1 for emitting green light.

[0048] The display panel 100 also includes a color filter layer 40 disposed on the side of the light color conversion layer 30 facing away from the substrate 10. Each light-emitting device Q1 includes a single light-emitting structure 21 located in the light-emitting functional layer 20 and a single light-adjusting part 31 located in the light color conversion layer 30. The color filter layer 40 includes a plurality of light-filtering parts 41. The orthogonal projections of the plurality of light-filtering parts 41 on the substrate 10 are arranged at intervals. The light-filtering parts 41 are correspondingly arranged with the light-emitting structure 21. At the same time, the light-filtering parts 41 are also correspondingly arranged with the light-emitting device Q1. When the light-emitting device Q1 emits light of the corresponding color, the light-filtering parts 41 improve the color saturation and accuracy of the corresponding display color by filtering light of a specific wavelength.

[0049] The plurality of light-emitting devices Q1 includes a first light-emitting device Q11, and the first light-emitting device Q11 includes a first light-emitting structure 211. It can be understood that the first light-emitting device Q11 is one of the plurality of light-emitting devices Q1. For ease of description and understanding, the first light-emitting device Q1 is defined as the first light-emitting device Q11. Similarly, the first light-emitting structure 211 is one of the plurality of light-emitting structures 21. For ease of description and understanding, the first light-emitting structure 21 is defined as the first light-emitting structure 211.

[0050] The light emission color of the first light-emitting device Q11 is the same as the light emission color of the first light-emitting structure 211. That is to say, after the first light-emitting structure 211 emits light of a certain color, the corresponding light adjustment unit 31 does not change its light emission color. Therefore, the light emission color of the first light-emitting device Q11 is the same as the light emission color of the first light-emitting structure 211.

[0051] In order to improve the accuracy of the photosensitive element 200 and reduce the interference of other stray light on the photosensitive element 200, during the installation of the photosensitive element 200 and the display panel 100, the photosensitive element 200 is set at the position corresponding to the first light-emitting device Q11, and the orthographic projection of the photosensitive element 200 on the substrate 10 overlaps with the orthographic projection of the first light-emitting device Q11 on the substrate 10.

[0052] By positioning the photosensitive element 200 and the light-emitting device Q1 in a corresponding manner, the photosensitive element 200 can directly and accurately capture the light emitted by the light-emitting device Q1, as well as the ambient light passing through the light-emitting device Q1. Setting the photosensitive element 200 and the light-emitting device Q1 in a projected overlapping manner ensures the straight-line propagation of the light path, reducing scattering and loss of light during propagation, thereby improving the accuracy of light perception by the photosensitive element 200. Simultaneously, setting the photosensitive element 200 and the light-emitting device Q1 in a projected overlapping manner also reduces interference from other non-target light rays. If the photosensitive element 200 and the light-emitting device Q1 are misaligned, the photosensitive element 200 may capture reflected or scattered light from other areas, leading to inaccurate measurement data.

[0053] Furthermore, by correspondingly setting the first light-emitting device Q11, whose emission color is the same as that of the light-emitting device Q1, to the light-emitting structure 21, the influence of stray light of other colors on the photosensitive element 200 can be reduced while achieving multi-color emission using the light-emitting structure 21 and the light adjustment unit 31. For example, if the emission color of the first light-emitting structure 211 is blue, and the corresponding light adjustment unit 31 does not change the light-emitting structure 21 of the first light-emitting structure 211, the emission color of the first light-emitting device Q11 is the same as that of the first light-emitting structure 211, which is also blue. When the light emitted by the light-emitting structure 21 in other light-emitting devices Q1 passes through the corresponding light adjustment unit 31, the color of the light-emitting structure 21 changes, and the emission color of the light-emitting device Q1 differs from that of the light-emitting device Q1. By correspondingly setting the light-emitting device Q1, whose emission color is the same as that of the light-emitting structure 21, the photosensitive element 200 can identify and capture light of a single color, thereby reducing the influence of light of different colors on the photosensitive element 200.

[0054] In summary, in this embodiment, the display panel 100 and the photosensitive element 200 are installed together and belong to the same display device. The display panel 100 includes multiple light-emitting devices Q1 on the light-emitting layer. The light-emitting devices Q1 are the core components for image display on the display panel 100, and they emit light to present various images and text information. The display panel 100 includes a substrate 10, a light-emitting functional layer 20, a light-color conversion layer 30, and a color filter layer 40 on the layer structure. The light-emitting functional layer 20 may include multiple light-emitting structures 21, and the light-color conversion layer 30 includes multiple light-adjusting parts 31. The light-adjusting parts 31 and the orthographic projections of the light-emitting structures 21 on the substrate 10 overlap, and some of the light-adjusting parts 31 are used to change the emitted color of the light-emitting structures 21. Each light-emitting device Q1 includes a light-emitting structure 21 and a light-adjusting part 31 corresponding to the light-emitting structure 21. The light-emitting structure 21 emits light of a specific color, which is emitted after being adjusted by the corresponding light-adjusting part 31. It is understood that the emission color of the light-emitting structure 21 is determined by itself, and the emission color of the light-emitting device Q1 is determined by the emission color of the light-emitting structure 21 and the adjustment function of the light adjustment unit 31. Multiple light-emitting devices Q1 are orthographically projected onto the substrate 10 at intervals, with at least different light-emitting devices Q1 emitting light of different colors. To improve the accuracy of the photosensitive element 200 and reduce interference from stray light, during the installation of the photosensitive element 200 with the display panel 100, the photosensitive element 200 is positioned corresponding to the first light-emitting device Q11, with the orthographic projection of the photosensitive element 200 onto the substrate 10 overlapping with the orthographic projection of the first light-emitting device Q11 onto the substrate 10. This overlapping projection arrangement of the photosensitive element 200 and the light-emitting device Q1 ensures straight-line propagation of light, reduces scattering and loss of light during propagation, and thus improves the accuracy of light perception by the photosensitive element 200.

[0055] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3The display panel 100 includes a filter layer 50 disposed between a first light-emitting structure 211 and a photosensitive element 200, wherein the orthographic projection of the filter layer 50 on the substrate 10 overlaps with the orthographic projection of the photosensitive element 200 on the substrate 10. Optionally, the first light-emitting structure 211 emits blue light, and the filter layer 50 includes a light filter 51, the light filter 51 being blue. Optionally, the display panel 100 further includes a first electrode layer 60 disposed between the substrate 10 and the light-emitting functional layer 20, and the light filter 51 is disposed between the first electrode layer 60 and the photosensitive element 200. Optionally, the light filter 51 is disposed on the side of the substrate 10 opposite to the first electrode layer 60. Optionally, the display panel 100 further includes an insulating layer 70, the insulating layer 70 having a through-hole structure 71, at least a portion of the light filter 51 being located inside the through-hole structure 71.

[0056] To further reduce the impact of ambient stray light on the photosensitive element 200, the display panel 100 also includes a filter layer 50 disposed between the first light-emitting structure 211 and the photosensitive element 200. The orthographic projection of the filter layer 50 on the substrate 10 overlaps with the orthographic projection of the photosensitive element 200 on the substrate 10. The filter layer 50 is used to filter out light of colors other than those perceived by the photosensitive element 200, thereby reducing the impact of stray light of other colors on the photosensitive element 200. Specifically, the light emitted by the first light-emitting structure 211 can be blue, and a filter 51 can be disposed in the filter layer 50, with the filter color being blue. The material of the filter 51 can be the same as the material of the filter portion 41 in the color filter layer 40.

[0057] Optionally, the display panel 100 further includes a first electrode layer 60 disposed between the substrate 10 and the light-emitting functional layer 20, and a filter 51 disposed between the first electrode layer 60 and the photosensitive element 200. The first electrode layer 60 can transmit a driving signal to the light-emitting structure 21 in the light-emitting functional layer 20 to make the light-emitting structure 21 emit light. Disposing the filter 51 between the first electrode layer 60 and the photosensitive element 200, that is, disposing the filter 51 on the side of the first electrode layer 60 away from the light-emitting functional layer 20, can reduce the influence of the filter 51 on the related structural arrangement between the first electrode layer 60 and the light-emitting structure 21 while ensuring the function of the filter 51. Optionally, the display panel 100 further includes an insulating layer 70, and the insulating layer 70 is provided with a through-hole structure 71 along the thickness direction X. At least a portion of the filter 51 is located inside the through-hole structure 71. Along the thickness direction X of the display panel 100, multiple insulating layers 70 are provided. For example, the insulating layer 70 is provided on the side of the substrate 10 opposite to the first electrode layer 60, and the insulating layer 70 and the filter 51 are located on the same side of the substrate 10. A through-hole structure 71 is provided in the insulating layer 70, and the filter 51 can be disposed inside the through-hole structure 71. Alternatively, the insulating layer 70 can also be provided on the side of the substrate 10 opposite to the filter 51, and the through-hole structure 71 can also be provided on the insulating layer 70, with the projection of the filter 51 on the substrate 10 overlapping the projection of the through-hole structure 71 on the substrate 10.

[0058] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The display panel 100 further includes a first electrode layer 60 disposed between the substrate 10 and the light-emitting functional layer 20. The first electrode layer 60 includes a plurality of first electrodes 61, which are correspondingly disposed with respect to the light-emitting structure 21. The first electrode 61 corresponding to the first light-emitting structure 211 includes a transparent material. Optionally, the first electrode 61 includes at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires. Optionally, the display panel 100 further includes a second electrode layer 80 disposed on the side of the light-emitting functional layer 20 away from the substrate 10. The portion of the second electrode layer 80 overlapping with the first light-emitting structure 211 includes a transparent material. Optionally, the second electrode includes at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires. Optionally, the display panel 100 further includes a pixel definition layer 90 disposed on one side of the substrate 10. The pixel definition layer 90 includes a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion. The light-emitting structure 21 is located inside the pixel openings, and the pixel defining portion includes a light-shielding material. Optionally, the photosensitive element 200 includes an imaging sensor and a fingerprint recognition sensor.

[0059] To improve the light transmittance in the display panel 100, the electrode corresponding to the light-emitting structure 21 can be set as a transparent electrode to enhance light transmittance at the electrode. Specifically, the display panel 100 includes a first electrode layer 60 disposed between the substrate 10 and the light-emitting functional layer 20. The first electrode layer 60 includes a plurality of first electrodes 61, which are correspondingly disposed to the light-emitting structures 21. It is understood that each light-emitting structure 21 corresponds to one first electrode 61. Considering that the photosensitive element 200 is correspondingly disposed to the first light-emitting structure 211, the first electrode 61 corresponding to the first light-emitting structure 211 is preferably set as a transparent electrode so that light can be transmitted to the photosensitive element 200 through the transparent electrode, thereby improving the accuracy of the photosensitive element 200. For example, the first electrode 61 is an anode.

[0060] Optionally, the display panel 100 further includes a second electrode layer 80 disposed on the side of the light-emitting functional layer 20 facing away from the substrate 10. Preferably, the portion of the second electrode layer 80 overlapping with the first light-emitting structure 211 is made of a transparent material so that light can be transmitted to the photosensitive element 200 through the transparent electrode. For example, the second electrode is a cathode.

[0061] Specifically, the material of the first electrode 61 and the second electrode can be set to at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires.

[0062] To reduce the impact of light emitted from the surrounding light-emitting structures 21 on the photosensitive element 200, the display panel 100 further includes a pixel definition layer 90 disposed on one side of the substrate 10. The pixel definition layer 90 includes pixel defining portions and a plurality of pixel openings formed by the pixel defining portions. The light-emitting structures 21 are located inside the pixel openings, and the pixel defining portions include light-shielding materials. Different light-emitting structures 21 are located in different pixel openings and separated by pixel definition portions 91 containing light-shielding materials, thereby reducing the influence of the emitted color between two adjacent light-emitting structures 21 and reducing the impact of light emitted from the surrounding light-emitting structures 21 on the photosensitive element 200.

[0063] Optionally, the photosensitive element 200 can be configured as an imaging sensor and a fingerprint recognition sensor. The projection area of ​​the display panel 100 in the thickness direction X includes a first region 101 and a second region 102. The first region 101 is the under-display camera area, and the imaging sensor is disposed in the first region 101. The second region 102 is the under-display fingerprint recognition area, and the fingerprint recognition sensor is disposed in the second region 102. In the embodiments of this application, the layer structure of the display panel 100 can preferably be disposed within the range of the first region 101 and the second region 102, or the layer structure can be disposed at all positions in the projection area of ​​the display panel 100 in the thickness direction X.

[0064] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The first light-emitting device Q11 further includes a first light-adjusting section 311, the orthographic projection of the first light-adjusting section 311 on the substrate 10 overlapping the orthographic projection of the first light-emitting structure 211 on the substrate 10. Optionally, the first light-adjusting section 311 includes a transparent photoresist material. Optionally, the first light-adjusting section 311 includes titanium dioxide particles or zirconium dioxide particles. Optionally, the first light-adjusting section 311 includes a filter material, the filter color of the first light-adjusting section 311 being the same as the emission color of the first light-emitting structure 211. Optionally, the emission color of the first light-emitting structure 211 is blue, and the filter color of the first light-adjusting section 311 is blue.

[0065] The light-emitting device Q1 includes corresponding light-emitting structures 21 and light-adjusting parts 31. The emission color of the first light-emitting device Q11 is the same as the emission color of the first light-emitting structure 211. The first light-emitting device Q11 also includes a first light-adjusting part 311 located in the light color conversion layer 30. It can be understood that the first light-adjusting part 311 is one of a plurality of light-adjusting parts 31. For ease of understanding and description, one of the plurality of light-adjusting parts 31 is defined as the first light-adjusting part 311. The orthographic projection of the first light-adjusting part 311 on the substrate 10 overlaps with the orthographic projection of the first light-emitting structure 211 on the substrate 10.

[0066] The first light adjustment unit 311 does not change the emission color of the first light-emitting structure 211, so that the first light-emitting device Q11 has the same emission color as the first light-emitting structure 211. Optionally, the first light adjustment unit 311 may include a transparent photoresist material, so that the light emitted by the first light-emitting structure 211 retains its original color when passing through the transparent photoresist material. Alternatively, the first light adjustment unit 311 may include a filter material, the filter color of which is the same as the emission color of the first light-emitting structure 211, so that the light emitted by the first light-emitting structure 211 can smoothly pass through the filter material and retain its original color.

[0067] When the first light-adjusting section 311 includes a transparent photoresist material, it may include titanium dioxide particles or zirconium dioxide particles. When the first light-adjusting section 311 includes a filter material, it may be made of the same material as the filter section 41 in the color filter layer 40. Optionally, when the first light-adjusting section 311 includes a filter material, the emission color of the first light-emitting structure 211 is blue, and the filter color of the first light-adjusting section 311 is blue; or, the emission color of the first light-emitting structure 211 is red, and the filter color of the first light-adjusting section 311 is red; or, the emission color of the first light-emitting structure 211 is green, and the filter color of the first light-adjusting section 311 is green.

[0068] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The plurality of light-emitting devices Q1 also includes a second light-emitting device Q12. The second light-emitting device Q12 includes a second light-emitting structure 212. The emission color of the second light-emitting device Q12 is different from the emission color of the second light-emitting structure 212. The orthographic projection of the second light-emitting device Q12 on the substrate 10 is located outside the orthographic projection of the photosensitive element 200 on the substrate 10. Optionally, the emission color of the second light-emitting structure 212 is the same as the emission color of the first light-emitting structure 211. The second light-emitting device Q12 also includes a second light-adjusting part 312. The orthographic projection of the second light-adjusting part 312 on the substrate 10 overlaps with the orthographic projection of the second light-emitting structure 212 on the substrate 10. The second light-adjusting part 312 is used to change the emission color of the second light-emitting structure 212. Optionally, the emission color of both the second light-emitting structure 212 and the first light-emitting structure 211 is blue, and the second light-adjusting part 312 includes a green light-adjusting part 31. Optionally, the plurality of light-emitting devices Q1 further includes a third light-emitting device Q13. The third light-emitting device Q13 includes a third light-emitting structure 213. The emission color of the third light-emitting device Q13 is different from the emission color of the third light-emitting structure 213. The orthographic projection of the third light-emitting device Q13 on the substrate 10 is located outside the orthographic projection of the photosensitive element 200 on the substrate 10. Optionally, the emission color of the third light-emitting structure 213 is the same as the emission color of the first light-emitting structure 211. The third light-emitting device Q13 also includes a third light adjustment unit 313. The orthographic projection of the third light adjustment unit 313 on the substrate 10 overlaps with the orthographic projection of the third light-emitting structure 213 on the substrate 10. The third light adjustment unit 313 is used to change the emission color of the third light-emitting structure 213. Optionally, the emission color of both the third light-emitting structure 213 and the first light-emitting structure 211 is blue. The third light adjustment unit 313 includes a red light adjustment unit 31.

[0069] The plurality of light-emitting devices Q1 also includes a second light-emitting device Q12. It can be understood that the second light-emitting device Q12 is also one of the multiple light-emitting devices Q1. For ease of understanding and description, this single light-emitting device Q1 is defined as the second light-emitting device Q12. The second light-emitting device Q12 includes a second light-emitting structure 212. Similarly, the second light-emitting structure 212 is also one of the multiple light-emitting structures 21. For ease of understanding and description, this single light-emitting structure 21 is defined as the second light-emitting structure 212. The emission color of the second light-emitting device Q12 is different from that of the second light-emitting structure 212, and the emission color of the second light-emitting device Q12 is also different from that of the first light-emitting device Q11.

[0070] Specifically, the second light-emitting device Q12 further includes a second light adjustment unit 312 corresponding to the second light-emitting structure 212. The light emission color of the second light-emitting structure 212 can be the same as the light emission color of the first light-emitting structure 211. The second light adjustment unit 312 changes the light emission color of the second light-emitting structure 212, so that the light emission color of the second light-emitting device Q12 is different from that of the second light-emitting structure 212. Combined with the first light adjustment unit 311, which does not change the light emission color of the first light-emitting structure 211, the first light-emitting device Q11 and the second light-emitting device Q12 emit different colors, thus realizing the multi-color display of the display panel 100. For example, both the first light-emitting structure 211 and the second light-emitting structure 212 can emit blue light. The first light adjustment unit 311 does not change the light emission color of the first light-emitting structure 211. The second light adjustment unit 312 includes a green light adjustment unit 31, which is used to change the blue light emitted by the second light-emitting structure 212 to green light, so that the first light-emitting device Q11 emits blue light while the second light-emitting device Q12 emits green light.

[0071] Similarly, the plurality of light-emitting devices Q1 also includes a third light-emitting device Q13. It can be understood that the third light-emitting device Q13 is also one of the multiple light-emitting devices Q1. For ease of understanding and description, this third light-emitting device Q1 is defined as the third light-emitting device Q13. The third light-emitting device Q13 includes a third light-emitting structure 213. Likewise, the third light-emitting structure 213 is also one of the multiple light-emitting structures 21. For ease of understanding and description, this third light-emitting structure 21 is defined as the third light-emitting structure 213. The emission color of the third light-emitting device Q13 is different from the emission color of the third light-emitting structure 213. The emission color of the third light-emitting device Q13 is also different from the emission color of the first light-emitting device Q11 and the second light-emitting device Q12.

[0072] Specifically, the third light-emitting device Q13 also includes a third light adjustment unit 313 corresponding to the third light-emitting structure 213. The light emission color of the third light-emitting structure 213 can be the same as the light emission color of the first light-emitting structure 211. The third light adjustment unit 313 changes the light emission color of the third light-emitting structure 213, so that the light emission color of the third light-emitting device Q13 is different from that of the third light-emitting structure 213. Combined with the first light adjustment unit 311, the light emission color of the first light-emitting structure 211 is not changed, so that the light emission color of the third light-emitting device Q13 is different from that of the first light-emitting device Q11, thus realizing the multi-color display of the display panel 100. For example, the first light-emitting structure 211 and the third light-emitting structure 213 can both emit blue light. The first light adjustment unit 311 does not change the emission color of the first light-emitting structure 211. The third light adjustment unit 313 includes a red light adjustment unit 31. The third light adjustment unit 313 is used to change the blue light emitted by the third light-emitting structure 213 into red light, so that the first light-emitting device Q11 emits blue light while the third light-emitting device Q13 emits red light. Combined with the second light-emitting device Q12 emitting green light, the display panel 100 can achieve a multi-color display.

[0073] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The display panel 100 further includes a first electrode layer 60 disposed between the substrate 10 and the light-emitting functional layer 20. The first electrode layer 60 includes a plurality of first electrodes 61, which are correspondingly disposed with respect to the light-emitting structure 21. The first electrode 61 corresponding to the second light-emitting structure 212 among the plurality of first electrodes 61 includes a first reflective material. Optionally, the display panel 100 further includes a second electrode layer 80 disposed on the side of the light-emitting functional layer 20 facing away from the substrate 10. The portion of the second electrode layer 80 overlapping with the second light-emitting structure 212 includes a second reflective material. Optionally, the reflectivity of the first reflective material is different from that of the second reflective material. Optionally, the plurality of light-emitting devices Q1 further includes a third light-emitting device Q13, which includes a third light-emitting structure 213. The emission color of the third light-emitting device Q13 is different from that of the third light-emitting structure 213, and the first electrode 61 corresponding to the third light-emitting structure 213 among the plurality of first electrodes 61 includes a first reflective material. Optionally, the portion of the second electrode layer 80 that overlaps with the third light-emitting structure 213 includes a second reflective material.

[0074] In the display panel 100 provided in this embodiment, the first light-emitting structure 211, the second light-emitting structure 212, and the third light-emitting structure 213 all emit blue light. The first light adjustment unit 311 does not change the emission color of the first light-emitting structure 211, causing the first light-emitting device Q11 to emit blue light. The second light adjustment unit 312 changes the emission color of the second light-emitting structure 212, causing the second light-emitting device Q12 to emit green light. The third light adjustment unit 313 changes the emission color of the third light-emitting structure 213, causing the third light-emitting device Q13 to emit red light. Simultaneously, the first electrode 61 and the second electrode, corresponding to the first light-emitting structure 211, are set as transparent electrodes to improve the light transmittance at the electrodes and improve the accuracy of the photosensitive element 200.

[0075] To ensure the uniformity of the display panel 100, the first electrode 61 and the second electrode corresponding to the second light-emitting structure 212, and the first electrode 61 and the second electrode corresponding to the third light-emitting structure 213, are all made of reflective material. This forms a microcavity effect around the second light-emitting structure 212 and the third light-emitting structure 213, improving their light extraction efficiency. The first electrode includes a first reflective material, and the second electrode includes a second reflective material. The first and second reflective materials have different reflectivities to ensure effective light reflection within the microcavity effect. Specifically, during the light emission of the first light-emitting device Q11, the first light adjustment unit 311 does not change the color of the first light-emitting structure 211, eliminating light loss during color conversion and resulting in relatively high light transmission efficiency. Furthermore, since the first electrode 61 and the second electrode at the first light-emitting structure 211 are both transparent electrodes, the microcavity effect at the first light-emitting structure 211 is weak, resulting in relatively low light extraction efficiency. During the light emission process of the second light-emitting device Q12, based on the arrangement of the first electrode 61 and the second electrode at the second light-emitting structure 212, the microcavity effect at the second light-emitting structure 212 is strong, resulting in relatively high light emission efficiency. However, the second light adjustment unit 312 changes the emission color of the second light-emitting structure 212, leading to light loss during the color conversion process. Under the combined effect of light emission color conversion and the microcavity effect, the first light-emitting device Q11 and the second light-emitting device Q12 can achieve relatively uniform luminance, thereby improving the display uniformity of the display panel 100.

[0076] The light-emitting process of the third light-emitting device Q13 is similar to that of the second light-emitting device Q12. Under the combined effect of light color conversion and microcavity effect, the third light-emitting device Q13 and the first light-emitting device Q11 can have relatively uniform luminance, thereby ensuring relatively uniform luminance among the first light-emitting device Q11, the second light-emitting device Q12 and the third light-emitting device Q13, so as to ensure the display uniformity of the display panel 100.

[0077] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The plurality of filter sections 41 include a first filter section 411, the orthographic projection of the first filter section 411 on the substrate 10 overlapping the orthographic projection of the first light-emitting device Q11 on the substrate 10, and the emitted light color of the first filter section 411 being the same as the emitted light color of the first light-emitting device Q11. Optionally, the first filter section 411 includes a transparent photoresist material. Optionally, the first filter section 411 includes titanium dioxide particles or zirconium dioxide particles. Optionally, the first filter section 411 includes a filter material, and the filter color of the first filter section 411 being the same as the emitted light color of the first light-emitting device Q11. Optionally, the emitted light color of the first light-emitting device Q11 is blue, and the filter color of the first filter section 411 is blue.

[0078] The plurality of filter sections 41 include a first filter section 411. It can be understood that the first filter section 411 is one of the plurality of filter sections 41. For ease of understanding and description, one of the plurality of filter sections 41 is defined as the first filter section 411. The orthographic projection of the first filter section 411 on the substrate 10 overlaps with the orthographic projection of the first light-emitting device Q11 on the substrate 10. The light emitted by the first filter section 411 is the same as the light emitted by the first light-emitting device Q11.

[0079] The first filter section 411 allows light emitted by the first light-emitting device Q11 to pass through. Optionally, considering that the first filter section 411 and the first light-emitting device Q11 are correspondingly arranged, and the first light-emitting device Q11 and the photosensitive element 200 are correspondingly arranged, the first filter section 411 can be made of a transparent photoresist material to allow all light in the ambient light to pass through, so as to facilitate comprehensive perception by the photosensitive element 200. Alternatively, the first filter section 411 can be made of a filter material, and the filter color of the first filter section 411 is the same as the emission color of the first light-emitting device Q11, allowing only specific colors of light to pass through, so as to facilitate accurate perception by the photosensitive element 200. For example, the emission color of the first light-emitting device Q11 is blue, and the filter color of the first filter section 411 is blue. When the first filter section 411 is made of a transparent photoresist material, the first filter section 411 may include titanium dioxide particles or zirconium dioxide particles.

[0080] Preferably, the plurality of filter sections 41 further include a second filter section 412 corresponding to the second light-emitting device Q12, and a third filter section 413 corresponding to the third light-emitting device Q13. The first light-emitting device Q11 emits blue light, the first filter section 411 filters blue light, the second light-emitting device Q12 emits green light, the second filter section 412 filters green light, the third light-emitting device Q13 emits red light, and the third filter section 413 filters red light.

[0081] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The display panel 100 further includes an isolation layer C1, which includes an isolation portion C11 and a plurality of isolation openings formed by the isolation portion C11. The orthographic projection of the light-adjusting portion 31 on the substrate 10 overlaps with the orthographic projection of the isolation openings on the substrate 10. Optionally, at least a portion of the light-adjusting portion 31 is located inside the isolation openings. Optionally, the isolation portion C11 includes a light-shielding material. Optionally, the isolation portion C11 includes a white photoresist material. Optionally, the isolation portion C11 includes titanium dioxide particles or zirconium dioxide particles.

[0082] Based on the spaced orthographic projections of multiple light-emitting structures 21 on the substrate 10, the orthographic projections of multiple light-adjusting parts 31 on the substrate 10 are also spaced apart. To reduce the mutual interference between the light converted by adjacent light-adjusting parts 31, the display panel 100 further includes an isolation layer C1. The isolation layer C1 includes an isolation part C11 and multiple isolation openings formed by the isolation part C11. The projections of the light-adjusting parts 31 on the substrate 10 overlap with the orthographic projections of the isolation openings on the substrate 10, and the projections of the isolation parts C11 on the substrate 10 overlap with the orthographic projections of the interval regions between adjacent light-adjusting parts 31 on the substrate 10. Optionally, the isolation part C11 is disposed in the same layer as the light-adjusting parts 31, and at least a portion of the light-adjusting parts 31 is located inside the isolation openings to reduce the thickness of the display panel 100.

[0083] Specifically, the isolation portion C11 may include a light-shielding material, which may include carbon black to absorb light incident on the isolation portion C11. Optionally, the isolation portion C11 may also include a white photoresist material, specifically titanium dioxide particles or zirconium dioxide particles.

[0084] Furthermore, the light modulation unit 31 may include quantum dots. As a nanoscale semiconductor material, quantum dots typically have a size between 2 nanometers and 10 nanometers. The size of quantum dots has a decisive influence on their optical properties. When quantum dots are excited by light, they can emit light of a specific wavelength. For example, larger quantum dots emit light with longer wavelengths (such as red light), while smaller quantum dots emit light with shorter wavelengths (such as blue light). This characteristic allows quantum dots to emit different colors of light by precisely controlling their size, thus realizing the function of a color conversion layer.

[0085] Meanwhile, since quantum dots can emit light of a specific wavelength when excited by light, it is equivalent to making quantum dots a secondary light source. After the light-emitting structure 21 emits light, diffraction may occur during the transmission process. By setting the light adjustment unit 31 as a quantum dot structure, the transmission direction of the light emitted by the light-emitting structure 21 can be changed to a certain extent, breaking up the transmission of the light and reducing the degree of diffraction during the transmission process. The light incident on the light adjustment unit 31 is shown in the diagram. Figure 5 The arrow at the bottom center represents the light emitted from the light adjustment unit 31. Figure 5 The arrow line is located at the top.

[0086] By placing the isolation section C11 and the light-adjusting section 31 in the same layer, some of the light emitted when it shines on the isolation section C11 is emitted and then shines onto the quantum dots, thereby improving the luminous efficiency of the quantum dots in the light-adjusting section 31. Using a white photoresist material on the isolation section C11 further enhances the degree of light reflection, thereby improving the luminous efficiency of the quantum dots in the light-adjusting section 31.

[0087] Optionally, the light adjustment unit 31 may also include phosphor to change the emission color of the light-emitting device Q1.

[0088] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The display panel 100 further includes a light-shielding layer C2, which is located on the side of the light-color conversion layer 30 facing away from the substrate 10. The light-shielding layer C2 includes a light-shielding portion C21 and a plurality of light-shielding openings formed by the light-shielding portion C21. The orthographic projection of the light-filtering portion 41 on the substrate 10 overlaps with the orthographic projection of the light-shielding openings on the substrate 10. Optionally, at least a portion of the light-filtering portion 41 is located inside the light-shielding openings. Optionally, the display panel 100 further includes an encapsulation layer C3 disposed between the light-emitting functional layer 20 and the light-color conversion layer 30. Optionally, the display panel 100 further includes a touch layer C4 disposed between the light-color conversion layer 30 and the color filter layer 40.

[0089] Based on the spaced orthographic projections of multiple light-emitting structures 21 onto the substrate 10, and the spaced orthographic projections of multiple light-filtering portions 41 onto the substrate 10, the display panel 100 further includes a light-shielding layer C2 to reduce mutual interference between adjacent light-filtering portions 41. The light-shielding layer C2 includes a light-shielding portion C21 and multiple light-shielding openings formed by the light-shielding portion C21. The projection of the light-shielding portion C21 onto the substrate 10 overlaps with the orthographic projection of the spacing area between adjacent light-filtering portions 41 onto the substrate 10. Optionally, the light-shielding portion C21 and the light-filtering portion 41 are disposed in the same layer, and at least a portion of the light-filtering portion 41 is located inside the light-shielding openings to reduce the thickness of the display panel 100.

[0090] Optionally, the display panel 100 further includes an encapsulation layer C3 disposed between the light-emitting functional layer 20 and the light-color conversion layer 30. The encapsulation layer C3 is a film layer in the display panel 100 used to realize the encapsulation function. The encapsulation layer C3 is disposed between the light-emitting functional layer 20 and the light-color conversion layer 30, which can effectively prevent water and oxygen from entering the light-emitting functional layer 20, thereby improving the reliability and lifespan of the display panel 100. At the same time, the encapsulation layer C3 can also separate the light-emitting functional layer 20 and the light-color conversion layer 30 in the thickness direction X, so that the light emitted by the light-emitting structure 21 passes through the encapsulation layer C3 before passing through the light adjustment part 31, thereby improving the collimation of the light when it is transmitted in the thickness direction X of the display panel 100.

[0091] Optionally, the display panel 100 also includes a touch layer C4 disposed between the light color conversion layer 30 and the color filter layer 40. The touch layer C4 is a key component for realizing the touch function, used to detect the user's touch operation and convert the touch signal into an electrical signal, which is then transmitted to the control system for processing. At the same time, the touch layer C4 can also separate the light color conversion layer 30 and the color filter layer 40 in the thickness direction X, so that the light emitted by the light adjustment unit 31 passes through the touch layer C4 before passing through the light filtering unit 41, thereby improving the collimation of the light when it is transmitted in the thickness direction X of the display panel 100.

[0092] Secondly, this application provides a display device, including a display panel 100 and a photosensitive element 200 provided in the first direction of this application. The display device includes all the technical features of the display panel 100 and has all the technical effects of the display panel 100, which will not be repeated here.

[0093] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, The display panel is installed in conjunction with a photosensitive element, and the display panel includes multiple light-emitting devices, and... Substrate; A light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes multiple light-emitting structures; A light color conversion layer is disposed on the side of the light-emitting functional layer opposite to the substrate. The light color conversion layer includes a plurality of light adjustment sections, which are disposed corresponding to the light-emitting structure. Some of the light adjustment sections are used to change the light emitted by the light-emitting structure. The light-emitting device includes the light-emitting structure and the light adjustment sections disposed corresponding to the light-emitting structure. A color filter layer is disposed on the side of the light color conversion layer opposite to the substrate. The color filter layer includes multiple filter sections, and the orthographic projections of the multiple filter sections on the substrate are correspondingly overlapped with the multiple light-emitting structures. Among them, the plurality of light-emitting devices include a first light-emitting device, the first light-emitting device includes a first light-emitting structure, the light emission color of the first light-emitting device is the same as the light emission color of the first light-emitting structure, and the orthographic projection of the first light-emitting device on the substrate overlaps with the orthographic projection of the photosensitive element on the substrate.

2. The display panel according to claim 1, characterized in that, The display panel includes a filter layer disposed between the first light-emitting structure and the photosensitive element, wherein the orthographic projection of the filter layer on the substrate overlaps with the orthographic projection of the photosensitive element on the substrate; Preferably, the first light-emitting structure emits light in blue, and the filter layer includes a filter, the filter of which is blue. Preferably, the display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer, and the filter is disposed between the first electrode layer and the photosensitive element; Preferably, the filter is disposed on the side of the substrate opposite to the first electrode layer; Preferably, the display panel further includes an insulating layer having a through-hole structure, and at least a portion of the filter is located inside the through-hole structure.

3. The display panel according to claim 1, characterized in that, The display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer. The first electrode layer includes a plurality of first electrodes, which are disposed corresponding to the light-emitting structure. The first electrode disposed corresponding to the first light-emitting structure among the plurality of first electrodes includes a transparent material. Preferably, the first electrode comprises at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires; Preferably, the display panel further includes a second electrode layer disposed on the side of the light-emitting functional layer opposite to the substrate, wherein the portion of the second electrode layer overlapping with the first light-emitting structure comprises a transparent material; Preferably, the second electrode comprises at least one of indium tin oxide, zinc oxide, zinc aluminum oxide, and silver nanowires; Preferably, the display panel further includes a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion, the light-emitting structure being located inside the pixel openings, and the pixel defining portion including a light-shielding material; Preferably, the photosensitive element includes an imaging sensor and a fingerprint recognition sensor.

4. The display panel according to claim 1, characterized in that, The first light-emitting device further includes a first light-adjusting section, wherein the orthographic projection of the first light-adjusting section on the substrate overlaps with the orthographic projection of the first light-emitting structure on the substrate; Preferably, the first light-adjusting part includes a transparent photoresist material; Preferably, the first light-adjusting part includes titanium dioxide particles or zirconium dioxide particles; Preferably, the first light adjustment part includes a filter material, and the filter color of the first light adjustment part is the same as the light emission color of the first light-emitting structure; Preferably, the first light-emitting structure emits blue light, and the first light-adjusting section filters blue light.

5. The display panel according to claim 1, characterized in that, The plurality of light-emitting devices further include a second light-emitting device, the second light-emitting device including a second light-emitting structure, the light emission color of the second light-emitting device being different from the light emission color of the second light-emitting structure, and the orthographic projection of the second light-emitting device on the substrate being located outside the orthographic projection of the photosensitive element on the substrate; Preferably, the emission color of the second light-emitting structure is the same as the emission color of the first light-emitting structure. The second light-emitting device further includes a second light-adjusting part, the orthographic projection of the second light-adjusting part on the substrate and the orthographic projection of the second light-emitting structure on the substrate are overlapped, and the second light-adjusting part is used to change the emission color of the second light-emitting structure. Preferably, the second light-emitting structure and the first light-emitting structure both emit blue light, and the second light-adjusting part includes a green light-adjusting part; Preferably, the plurality of light-emitting devices further includes a third light-emitting device, the third light-emitting device including a third light-emitting structure, the light emission color of the third light-emitting device being different from the light emission color of the third light-emitting structure, and the orthographic projection of the third light-emitting device on the substrate being located outside the orthographic projection of the photosensitive element on the substrate; Preferably, the emission color of the third light-emitting structure is the same as that of the first light-emitting structure. The third light-emitting device further includes a third light-adjusting part, the orthographic projection of the third light-emitting part on the substrate overlaps with the orthographic projection of the third light-emitting structure on the substrate, and the third light-adjusting part is used to change the emission color of the third light-emitting structure. Preferably, the third light-emitting structure and the first light-emitting structure both emit blue light, and the third light-adjusting part includes a red light-adjusting part.

6. The display panel according to claim 5, characterized in that, The display panel further includes a first electrode layer disposed between the substrate and the light-emitting functional layer. The first electrode layer includes a plurality of first electrodes. The first electrodes are disposed corresponding to the light-emitting structure. The first electrode disposed corresponding to the second light-emitting structure among the plurality of first electrodes includes a first reflective material. Preferably, the display panel further includes a second electrode layer disposed on the side of the light-emitting functional layer opposite to the substrate, wherein the portion of the second electrode layer overlapping with the second light-emitting structure includes a second reflective material; Preferably, the reflectivity of the first reflective material is different from that of the second reflective material; Preferably, the plurality of light-emitting devices further includes a third light-emitting device, the third light-emitting device includes a third light-emitting structure, the light emission color of the third light-emitting device is different from the light emission color of the third light-emitting structure, and the first electrode of the plurality of first electrodes corresponding to the third light-emitting structure includes a first reflective material; Preferably, the portion of the second electrode layer that overlaps with the third light-emitting structure includes a second reflective material.

7. The display panel according to claim 1, characterized in that, The plurality of filter portions include a first filter portion, wherein the orthographic projection of the first filter portion on the substrate overlaps with the orthographic projection of the first light-emitting device on the substrate, and the light emitted by the first filter portion is the same as the light emitted by the first light-emitting device; Preferably, the first filter portion comprises a transparent photoresist material; Preferably, the first filter portion comprises titanium dioxide particles or zirconium dioxide particles; Preferably, the first filter portion includes a filter material, and the filter color of the first filter portion is the same as the emission color of the first light-emitting device; Preferably, the first light-emitting device emits blue light, and the first filter portion emits blue light.

8. The display panel according to claim 1, characterized in that, The display panel further includes an isolation layer, which includes an isolation portion and a plurality of isolation openings formed by the isolation portion. The orthographic projection of the light adjustment portion on the substrate and the orthographic projection of the isolation openings on the substrate overlap. Preferably, at least a portion of the light-adjusting portion is located inside the isolation opening; Preferably, the insulating part includes a light-shielding material; Preferably, the isolation portion comprises a white photoresist material; Preferably, the isolation portion comprises titanium dioxide particles or zirconium dioxide particles.

9. The display panel according to claim 1, characterized in that, The display panel further includes a light-shielding layer, which is located on the side of the light color conversion layer away from the substrate. The light-shielding layer includes a light-shielding part and a plurality of light-shielding openings formed by the light-shielding part. The orthographic projection of the light-filtering part on the substrate and the orthographic projection of the light-shielding openings on the substrate overlap. Preferably, at least a portion of the light-filtering portion is located inside the light-shielding opening; Preferably, the display panel further includes an encapsulation layer disposed between the light-emitting functional layer and the light color conversion layer; Preferably, the display panel further includes a touch layer disposed between the light color conversion layer and the color filter layer.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1-9.

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