Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate; the light-emitting layer is arranged on one side of the substrate, and the light-emitting layer comprises a light-emitting unit; the first electrode layer is arranged on the side, away from the substrate, of the light-emitting layer, in the first display area, the first electrode layer comprises a first opening, and the first opening and the light-emitting units are not overlapped in the direction perpendicular to the plane where the substrate is located; the first shading layer is arranged on the side, away from the substrate, of the first electrode layer, the first shading layer comprises a shading structure and a plurality of second openings and third openings, the second openings and the third openings are arranged at intervals through the shading structure, the second openings are located in the first display area, and the third openings are located in the first display area and the second display area. At least part of the second opening is overlapped with the first opening, and the third opening is overlapped with the light-emitting unit. And the use performance of the display panel and the use experience of a user are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic products, and in particular relates to a display panel and a display device. Background Art

[0002] With the advancement of technology, digital display panels such as smart phones and tablet computers have been widely used, among which the display screen is an indispensable interpersonal communication interface in these display panels. OLED (Organic Light Emitting Diode) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display panel that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

[0003] However, due to the structural limitations of existing display panels, the performance of the display panels cannot meet the requirements.

[0004] Therefore, a new display panel and display device are urgently needed. Summary of the invention

[0005] An embodiment of the present invention provides a display panel and a display device, which lowers the reflectivity of the display panel at the first opening by setting a first opening in the first electrode layer, reduces the reflectivity difference between the first display area and the second display area of ​​the display panel, improves the visual consistency between the first display area and the second display area of ​​the display panel in a screen-off state, and improves the performance of the display panel and the user experience.

[0006] In a first aspect, an embodiment of the present invention provides a display panel, comprising a first display area and a second display area at least partially arranged around the first display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the display panel comprises: a substrate; a light-emitting layer, arranged on one side of the substrate, the light-emitting layer comprising a light-emitting unit; a first electrode layer, arranged on a side of the light-emitting layer away from the substrate, in the first display area, the first electrode layer comprises a first opening, and in a direction perpendicular to a plane where the substrate is located, the first opening and the light-emitting unit do not overlap; a first shading layer, arranged on a side of the first electrode layer away from the substrate, the first shading layer comprises a shading structure and a plurality of second openings and a third opening spaced apart by the shading structure, the second opening is located in the first display area, the third opening is located in the first display area and the second display area, in a direction perpendicular to the plane where the substrate is located, at least part of the second opening overlaps with the first opening, and the third opening overlaps with the light-emitting unit.

[0007] In a second aspect, an embodiment of the present invention provides a display device, comprising: a display panel, wherein the display panel is the display panel in any of the above embodiments; and an optical element, which is arranged corresponding to the first display area of ​​the display panel.

[0008] Compared with the related art, the display panel provided by the embodiment of the present invention includes a substrate, a light-emitting layer, a first electrode layer and a first shading layer. The first shading layer includes a shading structure and a plurality of second openings and a third opening spaced apart by the shading structure. The third opening of the first shading layer is arranged corresponding to the light-emitting unit so that the light emitted by the light-emitting unit can be emitted from the third opening. In a direction perpendicular to the plane where the substrate is located, at least part of the second opening overlaps with the first opening, thereby improving the transmittance of the display panel at the overlap of the second opening and the first opening, so as to facilitate meeting the transmittance requirement of the optical element arranged corresponding to the first display area. In addition, by setting the first opening in the first electrode layer, the reflectivity of the display panel at the first opening is reduced, the reflectivity difference between the first display area and the second display area of ​​the display panel is reduced, the visual consistency between the first display area and the second display area of ​​the display panel in the screen-off state is improved, and the performance of the display panel and the user's experience are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention;

[0011] Figure 2 An embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle;

[0012] Figure 3 An embodiment of the present invention provides Figure 2 Schematic diagram of the cross section at BB;

[0013] Figure 4 Another embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle;

[0014] Figure 5 An embodiment of the present invention provides Figure 4 Schematic diagram of the cross section at CC;

[0015] Figure 6 Another embodiment of the present invention provides Figure 1A partial enlarged view of the P in the middle;

[0016] Figure 7 An embodiment of the present invention provides Figure 6 Schematic diagram of the cross section at EE;

[0017] Figure 8 Another embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle;

[0018] Fig. 9 An embodiment of the present invention provides Figure 8 Schematic diagram of the cross section at FF;

[0019] Fig.10 It is a schematic diagram of the structure of a display device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] In order to better understand the present invention, Figures 1 to 10 A display panel and a display device according to embodiments of the present invention are described in detail.

[0023] In the prior art, a display panel is usually provided with a first display area with a relatively high light transmittance for arranging optical elements. The inventors have found through research that when the light transmittance of the first display area is made greater than that of the second display area by adjusting the film material, the arrangement of the light-emitting units, etc., when the screen is off, the reflectivity of external light in the first display area will be greater than that in the second display area, thereby causing a difference in appearance between the first display area and the second display area, affecting the performance of the display panel and the user experience.

[0024] In order to solve the above problems, the display panel provided in the embodiment of the present invention sets a first opening in the first electrode layer to reduce the reflectivity of the display panel at the first opening, reduce the reflectivity difference between the first display area and the second display area of ​​the display panel, improve the visual consistency between the first display area and the second display area of ​​the display panel in the screen-off state, and improve the performance of the display panel and the user experience.

[0025] Please also read Figures 1 to 3 , Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention; Figure 2 An embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle; Figure 3 An embodiment of the present invention provides Figure 2 Schematic diagram of the cross section at BB in the middle.

[0026] An embodiment of the present invention provides a display panel, including a first display area AA1 and a second display area AA2 at least partially surrounding the first display area AA1, wherein the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, and the display panel includes: a substrate 100; a light emitting layer 200, which is disposed on one side of the substrate 100, and the light emitting layer 200 includes a light emitting unit 210; a first electrode layer 300, which is disposed on a side of the light emitting layer 200 away from the substrate 100, and in the first display area AA1, the first electrode layer 300 includes a first opening K1, which is perpendicular to the plane of the substrate 100 along a direction Y The first opening K1 and the light-emitting unit 210 do not overlap; the first shading layer 400 is arranged on the side of the first electrode layer 300 away from the substrate 100, and the first shading layer 400 includes a shading structure 410 and a plurality of second openings K2 and a third opening K3 spaced apart by the shading structure 410, the second opening K2 is located in the first display area AA1, and the third opening K3 is located in the first display area AA1 and the second display area AA2, and in the direction Y perpendicular to the plane where the substrate 100 is located, at least part of the second opening K2 overlaps with the first opening K1, and the third opening K3 overlaps with the light-emitting unit 210.

[0027] The display panel provided by the embodiment of the present invention includes a substrate 100, a light-emitting layer 200, a first electrode layer 300 and a first light-shielding layer 400. The first light-shielding layer 400 includes a light-shielding structure 410 and a plurality of second openings K2 and a third opening K3 arranged at intervals through the light-shielding structure 410. The third opening K3 of the first light-shielding layer 400 is arranged corresponding to the light-emitting unit 210 so that the light emitted by the light-emitting unit 210 can be emitted from the third opening K3. Along a direction Y perpendicular to the plane where the substrate 100 is located, at least part of the second opening K2 overlaps with the first opening K1, thereby improving the light transmittance of the display panel at the overlap of the second opening K2 and the first opening K1, so as to meet the light transmittance requirement of the optical element arranged corresponding to the first display area AA1. In addition, by arranging the first opening K1 on the first electrode layer 300, the reflectivity of the display panel at the first opening K1 is reduced, the reflectivity difference between the first display area AA1 and the second display area AA2 of the display panel is reduced, the visual consistency of the first display area AA1 and the second display area AA2 of the display panel in the screen-off state is improved, and the use performance of the display panel and the user's use experience are improved.

[0028] In this embodiment, along the direction Y perpendicular to the plane where the substrate 100 is located, the first opening K1 and the light emitting unit 210 do not overlap, that is, along the direction Y perpendicular to the plane where the substrate 100 is located, the orthographic projection of the first opening K1 on the substrate 100 and the light emitting unit 210 on the substrate 100 do not overlap, so as to avoid the first opening K1 affecting the light emitting effect of the light emitting unit 210. The direction of the plane where the substrate 100 is located is the direction indicated by X in the figure.

[0029] The first opening K1 and the second opening K2 are both located in the first display area AA1 to improve the light transmittance of the first display area AA1. The third opening K3 is located in the first display area AA1 and the second display area AA2, and is respectively arranged corresponding to the light-emitting units 210 of the first display area AA1 and the second display area AA2. In the direction Y perpendicular to the plane where the substrate 100 is located, at least part of the second opening K2 overlaps with the first opening K1, that is, all the second openings K2 may overlap with the first opening K1, or only part of the second openings K2 may overlap with the first opening K1, and part of the second openings K2 may not overlap with the first opening K1. Specifically, it can be adjusted according to the actual required reflectivity of the first display area AA1, as long as the difference in reflectivity between the first display area AA1 and the second display area AA2 can be reduced, and there is no special limitation.

[0030] Optionally, the first opening K1 and the second opening K2 may be formed by photolithography, laser etching or other processes without any special limitation.

[0031] Optionally, the substrate 100 may include a substrate and an array layer, and the array layer may include a driving circuit. For example, the array layer may include a first conductive layer, a second conductive layer, and a third conductive layer that are arranged on one side of the substrate and are stacked. An insulating layer is provided between adjacent conductive film layers. Exemplarily, the pixel driving circuit provided in the array layer includes a transistor and a storage capacitor. The transistor includes an active layer H, a gate G, a source S, and a drain D. The storage capacitor includes a first plate and a second plate. As an example, the gate G and the first plate may be located in the first conductive layer, the second plate may be located in the second conductive layer, and the source S and the drain D may be located in the third conductive layer.

[0032] The substrate may be a hard substrate, such as a glass substrate, or a flexible substrate, and its material may be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate. The substrate is mainly used to support the device disposed thereon.

[0033] Optionally, the light emitting layer 200 includes one or more of an electron injection layer, an electron transport layer, a light emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer and a hole injection layer, which can be selected according to the specific type of the light emitting layer 200 and are not particularly limited.

[0034] Optionally, the material of the first electrode layer 300 can be one of the metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), or an alloy of the aforementioned metal materials, such as magnesium-silver alloy (Mg / Ag) and lithium-aluminum alloy (Li / Al), which is not limited in this embodiment.

[0035] Optionally, the display panel further includes a second electrode layer disposed between the substrate 100 and the light-emitting layer 200. The material of the second electrode layer is generally a material with a high work function to improve the hole injection efficiency, and may be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO) or a transparent conductive polymer (such as polyaniline), etc. For example, the second electrode layer may be made of an ITO-Ag-ITO composite material, without special limitation.

[0036] Optionally, the display panel further includes a pixel definition layer 800 , the pixel definition layer 800 includes a pixel opening and a pixel definition structure, and the light emitting unit 210 is located in the pixel opening.

[0037] Optionally, the display panel further includes an encapsulation layer 700 disposed between the first light shielding layer 400 and the light emitting layer 200 , and the encapsulation layer 700 is used to encapsulate and protect the light emitting layer 200 .

[0038] Optionally, the encapsulation layer 700 includes a first encapsulation layer (not shown in the figure), and the material of the first encapsulation layer 700 includes an inorganic material. The inorganic material can be specifically made of silicon nitride, silicon oxide, silicon oxynitride and the like, and can be specifically formed by a CVD (Chemical Vapor Deposition) process.

[0039] Optionally, the encapsulation layer 700 further includes a second encapsulation layer located on the side of the first encapsulation layer away from the substrate 100, and the material of the second encapsulation layer includes an organic material. The organic material can be made of resin or polymer organic material, and can be formed by IJP (Inkjet printing) process.

[0040] Optionally, the encapsulation layer 700 also includes a third encapsulation layer located on the side of the second encapsulation layer away from the substrate 100, and the material of the third encapsulation layer includes an inorganic material. Continuing to add an inorganic encapsulation layer outside the organic encapsulation layer can further improve the encapsulation effect of the encapsulation layer 700; in this embodiment, the material of the third encapsulation layer can be the same as or different from the material of the first encapsulation layer, and there is no special limitation.

[0041] Optionally, the material of the first encapsulation layer is the same as the material of the third encapsulation layer, so that the first encapsulation layer and the third encapsulation layer can be prepared using the same equipment, which can simplify the preparation process of the display panel.

[0042] Optionally, the first light shielding layer 400 may include a black matrix material, specifically a polymer resin, etc. As long as the light shielding performance of the first light shielding layer 400 meets the requirements, it is not limited to the above materials.

[0043] See also Figures 3 to 5 , Figure 4 Another embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle; Figure 5 An embodiment of the present invention provides Figure 4 Schematic diagram of a cross-section at CC in the middle; in some optional embodiments, in the direction Y perpendicular to the plane where the substrate 100 is located, the area of ​​the overlapping part of the orthographic projection of the first opening K1 on the substrate 100 and the orthographic projection of the second opening K2 on the substrate 100 is a first area, and the ratio of the first area to the orthographic projection area of ​​the second opening K2 on the substrate 100 is greater than or equal to 0.5.

[0044] It can be understood that, the larger the first area is, the higher the degree of overlap between the first opening K1 and the second opening K2 is. When the first area is exactly equal to the orthographic projection area of ​​the first opening K1 on the substrate 100, the first opening K1 is covered by the second opening K2. Or, when the first area is exactly equal to the orthographic projection area of ​​the second opening K2 on the substrate 100, the second opening K2 is covered by the first opening K1. The size of the first opening K1 is greater than or equal to the size of the second opening K2.

[0045] In this embodiment, by limiting the ratio of the first area to the orthographic projection area of ​​the second opening K2 on the substrate 100 to be greater than or equal to 0.5, it is ensured that sufficient light can pass through the first opening K1 and the second opening K2 in sequence, or pass through the second opening K2 and the first opening K1 in sequence, that is, the transmittance of the display panel in the first display area AA1 is ensured, and it is avoided that the first electrode layer 300 and the first shading layer 400 block each other at the corresponding first opening K1 or the second opening K2.

[0046] Optionally, the ratio of the first area to the orthographic projection area of ​​the second opening K2 on the substrate 100 may be equal to any one of 0.5, 0.6, 0.7, 0.8, 0.9, and 1.

[0047] Optionally, when the ratio between the first area and the orthographic projection area of ​​the second opening K2 on the substrate 100 is equal to 1, corresponding to the second opening K2 being covered by the first opening K1 , the size of the first opening K1 is greater than or equal to the size of the second opening K2 .

[0048] See also Figures 4 to 5 In some optional embodiments, in a direction Y perpendicular to the plane where the substrate 100 is located, the orthographic projection of the first opening K1 on the substrate 100 covers the orthographic projection of the second opening K2 on the substrate 100 .

[0049] It is understandable that the size of the first opening K1 needs to be greater than or equal to the size of the second opening K2, so that the first opening K1 can cover the second opening K2, ensuring that the light emitted by the optical element can be emitted through the first opening K1. The orthographic projection shape of the first opening K1 on the substrate 100 and the orthographic projection shape of the second opening K2 on the substrate 100 can be the same or different. To facilitate preparation and reduce process difficulty, the first opening K1 and the second opening K2 can adopt the same shape. For example, the first opening K1 and the second opening K2 can adopt polygons such as rectangles and trapezoids, or curved shapes such as circles. Of course, other shapes, such as irregular shapes, can also be adopted.

[0050] See also Figure 6 to Figure 7 , Figure 6 Another embodiment of the present invention provides Figure 1A partial enlarged view of the P in the middle; Figure 7 An embodiment of the present invention provides Figure 6 Schematic cross-sectional view at EE; in some optional embodiments, the first opening K1 includes a first sub-opening K11 and a second sub-opening K12, and the orthographic projection area of ​​the first sub-opening K11 on the substrate 100 is different from the orthographic projection area of ​​the second sub-opening K12 on the substrate 100.

[0051] It should be noted that, since the first opening K1 is opened in the first electrode layer 300, and the first electrode layer 300 generally includes a metal material with a high reflectivity, the size of the first opening K1 will affect the reflectivity of the display panel. In this embodiment, the first opening K1 includes a first sub-opening K11 and a second sub-opening K12, and the orthographic projection area of ​​the first sub-opening K11 on the substrate 100 is different from the orthographic projection area of ​​the second sub-opening K12 on the substrate 100, that is, the sizes of the first sub-opening K11 and the second sub-opening K12 are different, and the orthographic projection area of ​​the first sub-opening K11 on the substrate 100 can be greater than the orthographic projection area of ​​the second sub-opening K12 on the substrate 100, or can be smaller than the orthographic projection area of ​​the second sub-opening K12 on the substrate 100. The smaller the size of the first opening K1, the greater the reflectivity of the corresponding first display area AA1, and the larger the size of the first opening K1, the smaller the reflectivity of the corresponding first display area AA1. The reflectivity of the display panel in the first display area AA1 can be flexibly adjusted according to actual needs to reduce the difference in reflectivity between the first display area AA1 and the second display area AA2.

[0052] Optionally, the first sub-opening K11 and the second sub-opening K12 may have the same shape to facilitate preparation, or they may have different shapes to achieve different areas.

[0053] See also Figures 8 to 9 , Figure 8 Another embodiment of the present invention provides Figure 1 A partial enlarged view of the P in the middle; Fig. 9 An embodiment of the present invention provides Figure 8 In some optional embodiments, the second opening K2 includes a third sub-opening K21 and a fourth sub-opening K22, and in a direction Y perpendicular to the plane where the substrate 100 is located, the third sub-opening K21 and the first opening K1 at least partially overlap, and the fourth sub-opening K22 and the first opening K1 do not overlap.

[0054] It should be noted that the second opening K2 may be arranged in one-to-one correspondence with the first opening K1, or may not be arranged in correspondence with the first opening K1. Specifically, along the direction Y perpendicular to the plane where the substrate 100 is located, the third sub-opening K21 and the first opening K1 at least partially overlap, that is, the first opening K1 is arranged correspondingly below the third sub-opening K21, and the optical device can enter and exit along the first opening K1 and the third sub-opening K21, while the fourth sub-opening K22 and the first opening K1 do not overlap, that is, the first opening K1 is not arranged below the fourth sub-opening K22. For example, the positional relationship restriction of the third sub-opening K21, the fourth sub-opening K22 and the first opening K1 can be achieved by limiting the number of the second openings K2 to be greater than the number of the first openings K1.

[0055] In some optional embodiments, the ratio of the number of the first openings K1 to the number of the second openings K2 is greater than or equal to 0.5 and less than or equal to 1.

[0056] It should be noted that when the ratio of the number of first openings K1 to the number of second openings K2 is equal to 1, the first openings K1 and the second openings K2 can be set in one-to-one correspondence. Of course, some of the first openings K1 and the second openings K2 can also be overlapped, and some of the first openings K1 and the second openings K2 can be staggered, without any special limitation.

[0057] The ratio of the number of the first openings K1 to the number of the second openings K2 should not be too small, otherwise the reflectivity of the first electrode layer 300 will be too high, affecting the visual difference between the first display area AA1 and the second display area AA2 in the screen-off state. It should not be too high either, as too many first openings K1 may affect the signal transmission effect of the first electrode layer 300. The inventors have found through research and experiments that the ratio of the number of the first openings K1 to the number of the second openings K2 should be greater than or equal to 0.5 and less than or equal to 1, so as to reduce the reflectivity difference between the first display area AA1 and the second display area AA2 of the display panel while ensuring the transmittance of the first display area AA1, improve the visual consistency between the first display area AA1 and the second display area AA2 of the display panel in the screen-off state, and improve the performance of the display panel and the user experience.

[0058] See also Figure 1 In some optional embodiments, the first display area AA1 includes at least one of a photosensitive device area and a fingerprint recognition area.

[0059] It is understandable that the photosensitive device area can be provided with infrared sensors, cameras and other photosensitive elements, which can be specifically provided on the side of the substrate 100 away from the light-emitting layer 200, or the photosensitive elements can be provided in a hole in the display panel. A fingerprint recognition element can be provided in the fingerprint recognition area to realize the fingerprint recognition function of the display panel. The optical elements in the photosensitive device area and the fingerprint recognition area have certain requirements on the transmittance of the display panel to ensure the normal operation of the optical elements. Therefore, the transmittance of the first display area AA1 of the display panel needs to be greater than the transmittance of the second display area AA2.

[0060] See also Figure 3 , Figure 5 , Figure 7 or Fig. 9 In some optional embodiments, the display panel further includes a color resist layer 600 , the color resist layer 600 includes a plurality of color resists 610 , and the color resists 610 are at least partially located in the third opening K3 .

[0061] It is understandable that the color resist layer 600 is used to filter light to emit light of different colors. The color resist 610 is at least partially located in the third opening K3 so that the light emitted by the light emitting unit 210 can enter the color resist 610 and emit the desired color light after being filtered by the color resist 610.

[0062] Optionally, the color resist layer 600 includes a plurality of color resists 610 of different colors. For example, the color resist 610 includes a first color resist and a second color resist. The first color resist and the second color resist have different colors. The color resist 610 is used to filter light to emit light of different colors. The different colors of the first color resist and the second color resist specifically refer to the different colors of the filtered light of the first color resist and the second color resist. For example, the external light is white light, which is filtered into red light after passing through the first color resist which is a red color resist, that is, the corresponding reflected light in the reflective layer is also red light, and the red reflected light can only be emitted through the first color resist which is a red color resist, and cannot be emitted through the color resist 610 of other colors.

[0063] See also Fig.10 , Fig.10 1 is a schematic diagram of a display device according to an embodiment of the present invention. The present invention also provides a display device, comprising: a display panel 1, the display panel 1 being the display panel 1 in any of the above embodiments; and an optical element 2, arranged corresponding to the first display area AA1 of the display panel 1.

[0064] The optical element 2 may be specifically disposed on a side of the substrate 100 away from the light emitting layer 200 in the first display area AA1 .

[0065] Optionally, the optical element 2 includes any one of a light sensing element and a fingerprint recognition element, so as to realize functions of the display panel 1 such as shooting, distance sensing, fingerprint recognition, and face recognition.

[0066] The display device provided by the embodiment of the present invention has the technical effect of the technical solution of the display panel 1 in any of the above embodiments, and the explanation of the structures and terms that are the same as or corresponding to the above embodiments will not be repeated here.

[0067] The display device provided in the embodiment of the present invention may be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode (QLED) or a micro flat panel display device (Micro-OLED or Micro-LED).

[0068] The display device provided in the embodiment of the present invention can be applied to a mobile phone, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0069] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the location process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

[0070] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that: The display panel comprises a first display area and a second display area at least partially surrounding the first display area, wherein the light transmittance of the first display area is greater than the light transmittance of the second display area, and the display panel comprises: substrate; A light-emitting layer, disposed on one side of the substrate, the light-emitting layer comprising a light-emitting unit; A first electrode layer is provided on a side of the light-emitting layer away from the substrate, and in the first display area, the first electrode layer comprises a first opening, and in a direction perpendicular to the plane where the substrate is located, the first opening and the light-emitting unit do not overlap; A first light-shielding layer is arranged on a side of the first electrode layer away from the substrate, the first light-shielding layer includes a light-shielding structure and a plurality of second openings and a third opening spaced apart by the light-shielding structure, the second opening is located in the first display area, the third opening is located in the first display area and the second display area, and in a direction perpendicular to the plane where the substrate is located, at least part of the second opening overlaps with the first opening, and the third opening overlaps with the light-emitting unit.

2. The display panel according to claim 1, characterized in that: In a direction perpendicular to the plane where the substrate is located, the area of ​​the overlapping part of the orthographic projection of the first opening on the substrate and the orthographic projection of the second opening on the substrate is a first area, and the ratio between the first area and the orthographic projection area of ​​the second opening on the substrate is greater than or equal to 0.

5.

3. The display panel according to claim 1, characterized in that: In a direction perpendicular to a plane where the substrate is located, an orthographic projection of the first opening on the substrate covers an orthographic projection of the second opening on the substrate.

4. The display panel according to claim 1, characterized in that: The first opening includes a first sub-opening and a second sub-opening, and an orthographic projection area of ​​the first sub-opening on the substrate is different from an orthographic projection area of ​​the second sub-opening on the substrate.

5. The display panel according to claim 1, characterized in that: The second opening includes a third sub-opening and a fourth sub-opening. In a direction perpendicular to the plane where the substrate is located, the third sub-opening and the first opening at least partially overlap, and the fourth sub-opening and the first opening do not overlap.

6. The display panel according to claim 1, characterized in that: A ratio of the number of the first openings to the number of the second openings is greater than or equal to 0.5 and less than or equal to 1.

7. The display panel according to claim 1, characterized in that: The first openings and the second openings are arranged in a one-to-one correspondence.

8. The display panel according to claim 1, characterized in that: The first display area includes at least one of a photosensitive device area and a fingerprint recognition area.

9. The display panel according to claim 1, characterized in that: The display panel further includes a color resist layer, the color resist layer includes a plurality of color resists, and the color resists are at least partially located in the third opening.

10. A display device, characterized in that: include: A display panel, wherein the display panel is the display panel according to any one of claims 1 to 9; The optical element is disposed corresponding to the first display area of ​​the display panel.

11. The display device according to claim 10, characterized in that: The optical element includes any one of a photosensitive element and a fingerprint recognition element.

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