Display panel and display device

Abstract

This application relates to a display panel and display device. The display panel includes a light-transmitting area, a transition area, and a conventional display area. The transition area is located between the light-transmitting area and the conventional display area. At least a portion of the transition area surrounds the light-transmitting area. The display panel includes a substrate, a light-emitting layer, a light-filtering layer, a light-adjusting layer, and a planarization layer. The light-emitting layer is disposed on one side of the substrate and includes a plurality of first light-emitting units disposed in the transition area. The light-filtering layer is disposed on the side of the light-emitting layer away from the substrate and includes a plurality of first light-filtering units corresponding to the plurality of first light-emitting units. The light-adjusting layer is disposed on the side of the light-emitting layer away from the substrate. The planarization layer is disposed on the side of the light-filtering layer and the light-adjusting layer away from the substrate. The planarization layer and the light-adjusting layer have different refractive indices, and the planarization layer is in contact with the light-adjusting layer at least in the transition area. In this way, the reflectivity of the transition area can be improved, the display difference between the transition area, the light-transmitting area, and the conventional display area can be reduced, and the display consistency of the display panel can be improved.

Description

Technical Field

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

[0002] With the continuous development of display technology, full-screen displays have become the mainstream display design, characterized by an ultra-high screen-to-body ratio. To achieve an even higher screen-to-body ratio, under-display camera (CUP) technology is attracting increasing attention from manufacturers.

[0003] In display panels that use under-display camera (CUP) technology, the display panel can be divided into a light-transmitting area, a transition area, and a regular display area. The light-transmitting area is where the under-display camera is located, and the regular display area is the other areas of the display screen besides the light-transmitting area and the transition area.

[0004] In related technologies, the display panel has poor display consistency, which affects the user experience. Summary of the Invention

[0005] Therefore, it is necessary to provide a display panel and a display device to improve the display consistency of the display panel.

[0006] In a first aspect, embodiments of this application provide a display panel, the display panel including a light-transmitting area, a transition area, and a conventional display area; the transition area is located between the light-transmitting area and the conventional display area; at least a portion of the transition area is disposed around the light-transmitting area;

[0007] The display panel includes:

[0008] substrate;

[0009] A light-emitting layer is disposed on one side of the substrate, and the light-emitting layer includes a plurality of first light-emitting units disposed in the transition region;

[0010] A filter layer is disposed on the side of the light-emitting layer away from the substrate; the filter layer includes a plurality of first filter units disposed corresponding to a plurality of first light-emitting units;

[0011] A light adjustment layer is disposed on the side of the light-emitting layer away from the substrate;

[0012] A planarization layer is disposed on the side of the filter layer and the light adjustment layer away from the substrate;

[0013] The planarization layer has a different refractive index than the light adjustment layer, and the planarization layer is in contact with the light adjustment layer at least in the transition region.

[0014] Secondly, embodiments of this application also provide a display device, which includes the display panel provided in the first aspect.

[0015] The display panel and display device provided in this application embodiment, by disposing the light adjustment layer on the side of the light-emitting layer away from the substrate and the planarization layer on the side of the filter layer and the light adjustment layer away from the substrate, make the refractive indices of the planarization layer and the light adjustment layer different. The planarization layer is in contact with the light adjustment layer at least in the transition area. In this way, the reflectivity of the transition area can be improved, and the reflectivity difference between the light-transmitting area, the transition area and the conventional display area can be reduced. In this way, the display difference between the transition area, the light-transmitting area and the conventional display area can be reduced, thereby improving the display consistency of the display panel. Attached Figure Description

[0016] Figure 1 This is a plan view of a display panel provided in some embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the structure of the transition area of ​​a display panel provided in some embodiments of this application.

[0018] Figure 3 This is a schematic diagram of the structure of the transition area of ​​a display panel provided in other embodiments of this application.

[0019] Figure 4 This is a schematic diagram of the structure of the conventional display area of ​​a display panel provided in some embodiments of this application.

[0020] Figure 5 This is a schematic diagram of the structure of the light-transmitting area of ​​a display panel provided in some embodiments of this application.

[0021] Figure 6 This is a schematic diagram of the structure of a display device provided in some embodiments of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Display panel; 10a. Light-transmitting area; 10b. Transition area; 10c. Conventional display area; 11. Substrate; 111. Substrate; 112. Driving circuit layer; 12. Light-emitting layer; 121. First light-emitting unit; 122. Second light-emitting unit; 123. Third light-emitting unit; 13. Filter layer; 131. First filter unit; 132. Second filter unit; 133. Third filter unit; 14. Planarization layer; 151. First light-shielding structure; 151a. First opening; 151b. Through hole; 152. Second light-shielding structure; 152a. Second opening; 153. Third light-shielding structure; 153a. Third opening; 153b. Fourth opening; 16. Inorganic encapsulation layer; 161. First inorganic encapsulation layer; 162. Organic encapsulation layer; 163. Second inorganic encapsulation layer; 17. Pixel defining layer; 17a. Pixel opening; 17b. Fifth opening.

[0024] 20. Display device. Detailed Implementation

[0025] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0028] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0029] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0030] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0031] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0032] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0033] In display panels that use under-display camera (CUP) technology, the display panel can be divided into a light-transmitting area, a transition area, and a regular display area. The light-transmitting area is where the under-display camera is located, and the regular display area is the other areas of the display screen besides the light-transmitting area and the transition area.

[0034] In related technologies, the display panel has poor display consistency, which affects the user experience.

[0035] Based on the above-mentioned technical problems, the inventors discovered that by making the refractive indices of the planarization layer and the light adjustment layer different, the planarization layer contacts the light adjustment layer at least in the transition area, thereby increasing the reflectivity of the transition area and reducing the reflectivity difference between the light transmission area, the transition area and the conventional display area. This can reduce the display difference between the transition area, the light transmission area and the conventional display area, and thus improve the display consistency of the display panel.

[0036] Based on this, the inventors further developed the technical solutions of the embodiments of this application. Specifically, the embodiments of this application provide a display panel, which includes a light-transmitting area, a transition area, and a conventional display area; the transition area is located between the light-transmitting area and the conventional display area; at least a portion of the transition area is disposed around the light-transmitting area; the display panel includes a substrate, a light-emitting layer, a light-filtering layer, a light-adjusting layer, and a planarization layer; the light-emitting layer is disposed on one side of the substrate, and the light-emitting layer includes a plurality of first light-emitting units disposed in the transition area; the light-filtering layer is disposed on the side of the light-emitting layer away from the substrate; the light-filtering layer includes a plurality of first light-filtering units disposed corresponding to the plurality of first light-emitting units; the light-adjusting layer is disposed on the side of the light-emitting layer away from the substrate; the planarization layer is disposed on the side of the light-filtering layer and the light-adjusting layer away from the substrate; wherein, the refractive index of the planarization layer and the light-adjusting layer are different, and the planarization layer is in contact with the light-adjusting layer at least in the transition area.

[0037] By adopting the above technical solution, the light adjustment layer is disposed on the side of the light-emitting layer away from the substrate, and the planarization layer is disposed on the side of the filter layer and the light adjustment layer away from the substrate. The refractive indices of the planarization layer and the light adjustment layer are different. The planarization layer is in contact with the light adjustment layer at least in the transition area. In this way, the reflectivity of the transition area can be improved, and the reflectivity difference between the light-transmitting area, the transition area and the conventional display area can be reduced. In this way, the display difference between the transition area, the light-transmitting area and the conventional display area can be reduced, and the display consistency of the display panel can be improved.

[0038] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] Figure 1 A plan view of a display panel provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of the transition area of ​​a display panel provided in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of the transition area of ​​a display panel provided in other embodiments of this application.

[0040] See Figures 1 to 3As shown, this application embodiment provides a display panel 10, which includes a light-transmitting area 10a, a transition area 10b, and a conventional display area 10c; the transition area 10b is located between the light-transmitting area 10a and the conventional display area 10c; at least a portion of the transition area 10b is disposed around the light-transmitting area 10a; the display panel 10 includes a substrate 11, a light-emitting layer 12, a light-filtering layer 13, a light-adjusting layer, and a planarization layer 14; the light-emitting layer 12 is disposed on one side of the substrate 11, and the light-emitting layer 12 includes a portion disposed in the transition area 10b. The light-emitting layer 12 has multiple first light-emitting units 121; a filter layer 13 is disposed on the side of the light-emitting layer 12 away from the substrate 11; the filter layer 13 includes multiple first filter units 131 disposed corresponding to the multiple first light-emitting units 121; a light-adjusting layer is disposed on the side of the light-emitting layer 12 away from the substrate 11; a planarization layer 14 is disposed on the side of the filter layer 13 and the light-adjusting layer away from the substrate 11; wherein, the planarization layer 14 has a different refractive index from the light-adjusting layer, and the planarization layer 14 is in contact with the light-adjusting layer at least in the transition region 10b.

[0041] Specifically, the display panel 10 can be of various types, such as an OLED display panel, a Micro-LED display panel, a Mini-LED display panel, etc. The display panel 10 can be a flexible display panel.

[0042] See Figures 2 to 4 As shown, the substrate 11 can be an array substrate, which includes a substrate 111 and a driving circuit layer 112 disposed on the substrate. The driving circuit layer 112 includes pixel driving circuits. The driving circuit layer 112 can be located in the conventional display area 10c and the transition area 10b.

[0043] See Figures 2 to 5 As shown, the display panel 10 includes a pixel defining layer 17, which can be disposed on one side of the substrate 11. Multiple pixel openings 17a are formed on the pixel defining layer 17, and the first light-emitting unit 121 is at least partially disposed within a corresponding pixel opening 17a. The pixel defining layer 17 can be a black pixel defining layer, thereby reducing the overall reflectivity of the display panel 10 and improving its display effect.

[0044] See Figure 5 As shown, the light-transmitting area 10a, also known as the CUP area, can realize the function of light emission display; it can also realize the function of optical signal transmission, such as at least one of the functions of taking pictures and biometric recognition. The light-transmitting area 10a can be used to set optical functional elements, such as cameras, fingerprint recognition structures, and other devices with integrated light sensors. To ensure that sufficient light reaches the optical functional elements, the light-transmitting area 10a has a high transmittance, which also makes the reflectance of the light-transmitting area 10a relatively high.

[0045] See Figure 4As shown, the regular display area 10c refers to the area in the display panel 10 other than the light-transmitting area 10a and the transition area 10b. The regular display area 10c is the regular display area of ​​the display panel 10. To ensure the display effect of the display panel 10, the regular display area 10c has a higher reflectivity.

[0046] See Figure 2 and Figure 3 As shown, the transition region 10b is at least partially surrounding the light-transmitting region 10a. The transition region 10b can realize the light-emitting display function and can be used for wiring. For example, the transition region 10b can be used to set up a pixel driving circuit, which can be electrically connected to the light-emitting element of the light-transmitting region 10a. In this way, it is not necessary to set up a pixel driving circuit in the light-transmitting region 10a, thereby improving the transmittance of the light-transmitting region 10a. Since the transition region 10b occupies a small area in the display panel 10, the aperture ratio of the transition region 10b is small, resulting in a small reflectivity of the transition region 10b. In this application, the planarization layer 14 and the light adjustment layer have different refractive indices. The planarization layer 14 is in contact with the light adjustment layer at least in the transition region 10b. This can improve the reflectivity of the transition region 10b and reduce the reflectivity difference between the light-transmitting region 10a, the transition region 10b, and the conventional display area 10c, thereby reducing the display difference between the transition region 10b, the light-transmitting region 10a, and the conventional display area 10c, and thus improving the display consistency of the display panel 10.

[0047] The filter layer 13 is disposed on the side of the light-emitting layer 12 away from the substrate 11. The filter layer 13 is used to replace the polarizer to reduce reflection, ensure the display effect of the flexible display panel 10, and improve the bendability of the flexible display panel 10. The thickness of the filter layer 13 is much smaller than the thickness of the polarizer, thereby reducing the thickness of the display panel 10.

[0048] See Figure 2 and Figure 3As shown, the plurality of first light-emitting units 121 may include red light-emitting units, green light-emitting units, and blue light-emitting units; the plurality of first light-filtering units 131 may include red light-filtering units, green light-filtering units, and blue light-filtering units. Specifically, red light-filtering units may be correspondingly arranged with red light-emitting units, green light-emitting units may be correspondingly arranged with green light-emitting units, and blue light-filtering units may be correspondingly arranged with blue light-emitting units. Taking the red light-emitting unit as an example, after the red light emitted by the red light-emitting unit passes through the red light-filtering unit, due to the filtering effect of the red light-filtering unit, light that deviates significantly from the red spectrum can be filtered out, thereby increasing the purity of the red light passing through the red light-filtering unit. In this way, the color purity of the display panel 10 can be improved, and the display effect of the display panel 10 can be enhanced. In addition, when ambient light is incident on the first filter unit 131, light in the ambient light that is not the same color as the first filter unit 131 is filtered out and cannot further penetrate into the display panel 10, thereby effectively reducing the amount of ambient light reflected by the metal layer in the display panel 10, thereby reducing the reflection of ambient light, improving the contrast of the display panel 10, and improving the display quality of the display panel 10.

[0049] See Figure 2 and Figure 3 As shown, the planarization layer 14 is disposed on the side of the light filter layer 13 and the light adjustment layer away from the substrate 11. The planarization layer 14 can prevent dust and moisture from entering the interior of the display panel 10 and can also maintain the surface cleanliness of the display panel 10. On the other hand, the planarization layer 14 can be a single film layer to improve the flatness of the side of the light filter layer 13 away from the substrate 11, so as to facilitate the fabrication of subsequent film layers.

[0050] In summary, the display panel 10 provided in this application embodiment, by disposing the light adjustment layer on the side of the light-emitting layer 12 away from the substrate 11, and disposing the planarization layer 14 on the side of the filter layer 13 and the light adjustment layer away from the substrate 11, makes the refractive indices of the planarization layer 14 and the light adjustment layer different. The planarization layer 14 is in contact with the light adjustment layer at least in the transition region 10b. In this way, the reflectivity of the transition region 10b can be increased, and the reflectivity difference between the light-transmitting region 10a, the transition region 10b, and the conventional display region 10c can be reduced. This can further reduce the display differences between the transition region 10b, the light-transmitting region 10a, and the conventional display region 10c, and improve the display consistency of the display panel 10.

[0051] See Figure 2As shown, in some embodiments, the display panel 10 includes a first light-shielding structure 151 located in the transition region 10b. The first light-shielding structure 151 is disposed on the side of the light-emitting layer 12 away from the substrate 11. A plurality of first openings 151a are formed on the first light-shielding structure 151, and a plurality of first filter units 131 are correspondingly disposed in the plurality of first openings 151a. The first light-shielding structure 151 is reused as a light adjustment layer. The absolute value of the difference between the refractive index of the first light-shielding structure 151 and the refractive index of the planarization layer 14 is greater than 0.1. The planarization layer 14 is in contact with the surface of the first light-shielding structure 151 away from the light-emitting layer 12.

[0052] Therefore, by placing the first light-shielding structure 151 in the transition region 10b, and disposing the first light-shielding structure 151 on the side of the light-emitting layer 12 away from the substrate 11, and by opening a plurality of first openings 151a on the first light-shielding structure 151, and disposing a plurality of first filter units 131 in the plurality of first openings 151a, the first light-shielding structure 151 can separate different first filter units 131, thereby reducing crosstalk between the light emitted by the first filter units 131 of different colors. The absolute value of the difference between the refractive index of the first light-shielding structure 151 and the refractive index of the planarization layer 14 is greater than 0.1, meaning that the difference between the first light-shielding structure 151 and the planarization layer 14 is significant. The first light-shielding structure 151 is reused as a light adjustment layer and contacts the planarization layer 14. In this way, firstly, the reflectivity of the transition area 10b can be effectively improved, and the reflectivity difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c can be reduced, thereby improving the display consistency of the display panel 10. Secondly, by utilizing the difference in refractive index between the first light-shielding structure 151 and the planarization layer 14, the first light-shielding structure 151 can be reused as a light adjustment layer, eliminating the need for a separate light adjustment layer, which is beneficial for the thinning design of the display panel 10.

[0053] Optionally, the first light-shielding structure 151 is a black matrix (BM) or a black light-shielding material.

[0054] In some embodiments, the contact area between the planarization layer 14 and the surface of the first light-shielding structure 151 away from the light-emitting layer 12 is L, the area of ​​the surface of the first light-shielding structure 151 away from the light-emitting layer 12 is S, and L / S is 40%~85%.

[0055] Therefore, by setting the ratio of the contact area L between the planarization layer 14 and the first light-shielding structure 151 to the area S of the surface of the first light-shielding structure 151 away from the light-emitting layer 12 within the above-mentioned appropriate range, the reflectivity of the transition area 10b can be effectively improved, making the reflectivity of the transition area 10b close to that of the conventional display area 10c. This effectively reduces the display differences between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c, thereby improving the display consistency of the display panel 10.

[0056] See Figure 3 As shown, in some embodiments, the display panel 10 includes an inorganic encapsulation layer 16 and a first light-shielding structure 151; the inorganic encapsulation layer 16 is disposed between the light filter layer 13 and the light-emitting layer 12; the inorganic encapsulation layer 16 is reused as a light adjustment layer; the first light-shielding structure 151 is located in the transition region 10b; the first light-shielding structure 151 is disposed on the side of the inorganic encapsulation layer 16 away from the substrate 11; a plurality of first openings 151a are formed on the first light-shielding structure 151, and a plurality of first light filter units 131 are correspondingly disposed in the plurality of first openings 151a; the absolute value of the difference between the refractive index of the first light-shielding structure 151 and the refractive index of the planarization layer 14 is less than 0.1, and a through hole 151b is formed on the first light-shielding structure 151, through which the planarization layer 14 contacts the inorganic encapsulation layer 16.

[0057] The inorganic encapsulation layer 16 is generally a film layer with a high refractive index, which can be greater than that of the planarization layer 14. In this embodiment, the inorganic encapsulation layer 16 is disposed between the filter layer 13 and the light-emitting layer 12. On the one hand, the inorganic encapsulation layer 16 can encapsulate the light-emitting layer 12, reducing the probability of failure of the light-emitting layer 12 and ensuring the normal display of the display panel 10. On the other hand, the absolute value of the difference between the refractive index of the first light-shielding structure 151 and the refractive index of the planarization layer 14 is less than 0.1, that is, the difference between the refractive index of the first light-shielding structure 151 and the refractive index of the planarization layer 14 is small. The inorganic encapsulation layer 16 is reused as a light adjustment layer. A through hole 151b is opened on the first light-shielding structure 151. The planarization layer 14 contacts the inorganic encapsulation layer 16 through the through hole 151b. By utilizing the difference in refractive index between the planarization layer 14 and the inorganic encapsulation layer 16, the reflectivity of the transition area 10b can be effectively improved, and the reflectivity difference between the transition area 10b, the light-transmitting area 10a and the conventional display area 10c can be reduced. In this way, the display difference between the transition area 10b, the light-transmitting area 10a and the conventional display area 10c can be reduced, and the display consistency of the display panel 10 can be improved.

[0058] See Figure 3 As shown, optionally, the display panel 10 may include multiple inorganic encapsulation layers 16 and organic encapsulation layers 162, with at least one organic encapsulation layer 162 disposed between adjacent inorganic encapsulation layers 16. Specifically, the display panel 10 may include a first inorganic encapsulation layer 161, an organic encapsulation layer 162, and a second inorganic encapsulation layer 163. The first inorganic encapsulation layer 161 is disposed on the side of the light-emitting layer 12 away from the substrate 11, the organic encapsulation layer 162 is disposed on the side of the first inorganic encapsulation layer 161 away from the substrate 11, the second inorganic encapsulation layer 163 is disposed on the side of the organic encapsulation layer 162 away from the substrate 11, and the light filter layer 13 and the first light-shielding structure 151 are disposed on the side of the second inorganic encapsulation layer 163 away from the substrate 11. The second inorganic encapsulation layer 163 may be reused as a light adjustment layer.

[0059] Optionally, the inorganic encapsulation layer 16 may be made of at least one of silicon nitride and silicon oxynitride.

[0060] In some embodiments, the ratio of the projected area of ​​the through hole 151b on the substrate 11 to the projected area of ​​the first light-shielding structure 151 on the substrate 11 is 2% to 10%.

[0061] Therefore, by setting the ratio of the projected area of ​​the through hole 151b on the substrate 11 to the projected area of ​​the first light-shielding structure 151 on the substrate 11 within the aforementioned appropriate range, the reflectivity of the transition area 10b can be effectively improved, making the reflectivity of the transition area 10b close to that of the conventional display area 10c. This effectively reduces the display differences between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c, thereby improving the display consistency of the display panel 10.

[0062] In some embodiments, the refractive index of the first light-shielding structure 151 is 1.5 to 2.0; and the refractive index of the planarization layer 14 is 1.5 to 1.6.

[0063] In some embodiments, the refractive index of the inorganic encapsulation layer 16 is 1.8 to 2.0.

[0064] See Figure 2 and Figure 3 As shown, in some embodiments, at least one first filter unit 131 extends to the side of the first light-shielding structure 151 away from the substrate 11.

[0065] In other words, see Figure 2 and Figure 3 As shown, the orthographic projection of the filter layer 13 on the substrate 11 overlaps with the orthographic projection of the first light-shielding structure 151 on the substrate 11.

[0066] Therefore, the reflectivity of the transition area 10b can be easily adjusted, reducing the reflectivity difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c, thereby reducing the display difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c and improving the display consistency of the display panel 10.

[0067] See Figure 4As shown, in some embodiments, the light-emitting layer 12 further includes a plurality of second light-emitting units 122 disposed in the conventional display area 10c; the light-filtering layer 13 further includes a plurality of second light-filtering units 132 disposed corresponding to the plurality of second light-emitting units 122; the display panel 10 further includes a second light-shielding structure 152 located in the conventional display area 10c, the second light-shielding structure 152 being disposed on the side of the light-emitting layer 12 away from the substrate 11, the second light-shielding structure 152 having a plurality of second openings 152a, the plurality of second light-filtering units 132 being disposed correspondingly in the plurality of second openings 152a; at least one second light-filtering unit 132 extends to the side of the second light-shielding structure 152 away from the substrate 11.

[0068] Therefore, on the one hand, the light emitted by the second light-emitting unit 122 can be filtered by the second filter unit 132, and ambient light can also be filtered, thereby improving the color purity and contrast of the conventional display area 10c of the display panel 10, and thus improving the display effect of the display panel 10. On the other hand, the second light-shielding structure 152 can separate different second filter units 132, thereby reducing crosstalk between light emitted by second filter units 132 of different colors, and improving the display effect of the display panel 10. In addition, at least one second filter unit 132 extends to the side of the second light-shielding structure 152 away from the substrate 11. The second filter unit 132 can filter ambient light, and the second light-shielding structure 152 can absorb ambient light. In this way, the reflectivity of the conventional display area 10c of the display panel 10 can be reduced, and the reflectivity difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c can be reduced, thereby reducing the display difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c, and improving the display consistency of the display panel 10.

[0069] Understandably, the plurality of second light-emitting units 122 may include red light-emitting units, green light-emitting units, and blue light-emitting units; the plurality of second light-filtering units 132 may include red light-filtering units, green light-filtering units, and blue light-filtering units. Specifically, red light-filtering units may be configured corresponding to red light-emitting units, green light-emitting units may be configured corresponding to green light-emitting units, and blue light-filtering units may be configured corresponding to blue light-emitting units.

[0070] See Figure 4 As shown, in some embodiments, the orthographic projection of the filter layer 13 on the substrate 11 overlaps with the orthographic projection of the second light-shielding structure 152 on the substrate 11.

[0071] Therefore, by using the filter layer 13 to filter ambient light and the second light-shielding structure 152 to absorb ambient light, the reflectivity of the conventional display area 10c of the display panel 10 can be effectively reduced, and the reflectivity difference between the transition area 10b, the light-transmitting area 10a and the conventional display area 10c can be reduced. In this way, the display difference between the transition area 10b, the light-transmitting area 10a and the conventional display area 10c can be reduced, and the display consistency of the display panel 10 can be improved.

[0072] See Figures 2 to 4 As shown, in some embodiments, the second light-shielding structure 152 is disposed in the same layer as the first light-shielding structure 151. The second light-shielding structure 152 and the first light-shielding structure 151 can be manufactured simultaneously, and the materials of the second light-shielding structure 152 and the first light-shielding structure 151 can be the same.

[0073] See Figure 5 As shown, in some embodiments, the light-emitting layer 12 further includes a plurality of third light-emitting units 123 disposed in the light-transmitting area 10a; the light-filtering layer 13 further includes a plurality of third light-filtering units 133 disposed corresponding to the plurality of third light-emitting units 123; the display panel 10 further includes a third light-shielding structure 153 located in the light-transmitting area 10a, the third light-shielding structure 153 being disposed on the side of the light-emitting layer 12 away from the substrate 11, the third light-shielding structure 153 having a third opening 153a and a plurality of fourth openings 153b, the plurality of third light-filtering units 133 being disposed corresponding to the plurality of fourth openings 153b; at least one third light-filtering unit 133 extends to the side of the third light-shielding structure 153 away from the substrate 11.

[0074] Therefore, on the one hand, the light emitted by the third light-emitting unit 123 can be filtered by the third light-emitting unit 133, and ambient light can also be filtered, thereby improving the color purity and contrast of the light-transmitting area 10a of the display panel 10, and thus improving the display effect of the display panel 10; on the other hand, the third light-shielding structure 153 can separate different third light-emitting units 133, thereby reducing crosstalk between the light emitted by the third light-emitting units 133 of different colors, and improving the display effect of the display panel 10. Furthermore, at least one third filter unit 133 extends to the side of the second light-shielding structure 152 away from the substrate 11. The third filter unit 133 can filter ambient light, and the third light-shielding structure 153 can absorb ambient light. In this way, the reflectivity of the light-transmitting area 10a of the display panel 10 can be reduced, and the reflectivity difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c can be reduced. This can further reduce the display difference between the transition area 10b, the light-transmitting area 10a, and the conventional display area 10c, and improve the display consistency of the display panel 10.

[0075] It is understood that the plurality of third light-emitting units 123 may include red light-emitting units, green light-emitting units, and blue light-emitting units; the plurality of third light-filtering units 133 may include red light-filtering units, green light-filtering units, and blue light-filtering units. Specifically, red light-filtering units may be configured corresponding to red light-emitting units, green light-emitting units may be configured corresponding to green light-emitting units, and blue light-filtering units may be configured corresponding to blue light-emitting units.

[0076] It should be noted that, for reference Figure 5 As shown, the light-transmitting area 10a includes multiple light-emitting sub-areas and light-transmitting sub-areas. The third light-emitting unit 123 can be disposed in the light-emitting sub-area, and the third opening 153a can be located in the light-transmitting sub-area. The pixel defining layer 17 also has a fifth opening 17b, which can be located in the light-transmitting sub-area. In this way, the transmittance of the light-transmitting area 10a can be guaranteed.

[0077] In some embodiments, see Figure 5 As shown, the orthographic projection of the filter layer 13 on the substrate 11 overlaps with the orthographic projection of the third light-shielding structure 153 on the substrate 11.

[0078] Therefore, by using the filter layer 13 to filter ambient light and the third light-shielding structure 153 to absorb ambient light, the reflectivity of the light-transmitting area 10a of the display panel 10 can be effectively reduced, and the difference in reflectivity between the transition area 10b, the light-transmitting area 10a and the regular display area 10c can be reduced. This can further reduce the display differences between the transition area 10b, the light-transmitting area 10a and the regular display area 10c, and improve the display consistency of the display panel 10.

[0079] See Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the third light-shielding structure 153 is disposed in the same layer as the first light-shielding structure 151. The third light-shielding structure 153 and the first light-shielding structure 151 can be manufactured simultaneously, and the materials of the third light-shielding structure 153 and the first light-shielding structure 151 can be the same.

[0080] Based on the same application concept, see Figure 6 As shown, this application embodiment also provides a display device 20, including the display panel 10 in any of the above embodiments. Therefore, the display device 20 also has the beneficial effects of the display panel 10 in the above embodiments. The similarities can be understood with reference to the explanation of the display panel 10 above, and will not be repeated below.

[0081] The display device 20 provided in this embodiment can be a display device 20 that can be Figure 5The mobile phone shown can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display, touch interactive terminal, etc. This application embodiment does not make any special limitation in this regard.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes a light-transmitting area, a transition area, and a regular display area; the transition area is located between the light-transmitting area and the regular display area; at least a portion of the transition area surrounds the light-transmitting area. The display panel includes: substrate; A light-emitting layer is disposed on one side of the substrate, and the light-emitting layer includes a plurality of first light-emitting units disposed in the transition region; A filter layer is disposed on the side of the light-emitting layer away from the substrate; the filter layer includes a plurality of first filter units disposed corresponding to a plurality of first light-emitting units; A light adjustment layer is disposed on the side of the light-emitting layer away from the substrate; A planarization layer is disposed on the side of the filter layer and the light adjustment layer away from the substrate; The planarization layer has a different refractive index than the light adjustment layer, and the planarization layer is in contact with the light adjustment layer at least in the transition region to improve the reflectivity of the transition region.

2. The display panel according to claim 1, characterized in that, The display panel includes a first light-shielding structure located in the transition area. The first light-shielding structure is disposed on the side of the light-emitting layer away from the substrate. The first light-shielding structure has a plurality of first openings, and a plurality of first filter units are correspondingly disposed in the plurality of first openings. The first light-shielding structure is reused as the light-adjusting layer; The absolute value of the difference between the refractive index of the first light-shielding structure and the refractive index of the planarization layer is greater than 0.1; the planarization layer is in contact with the surface of the first light-shielding structure away from the light-emitting layer.

3. The display panel according to claim 2, characterized in that, The contact area between the planarization layer and the surface of the first light-shielding structure away from the light-emitting layer is L, and the area of ​​the surface of the first light-shielding structure away from the light-emitting layer is S, with L / S being 40%~85%.

4. The display panel according to claim 1, characterized in that, The display panel includes an inorganic encapsulation layer and a first light-shielding structure; The inorganic encapsulation layer is disposed between the filter layer and the light-emitting layer; the inorganic encapsulation layer is reused as the light adjustment layer; The first light-shielding structure is located in the transition region; the first light-shielding structure is disposed on the side of the inorganic encapsulation layer away from the substrate; the first light-shielding structure has a plurality of first openings, and a plurality of first filter units are correspondingly disposed in the plurality of first openings; The absolute value of the difference between the refractive index of the first light-shielding structure and the refractive index of the planarization layer is less than 0.

1. A through hole is formed on the first light-shielding structure, and the planarization layer contacts the inorganic encapsulation layer through the through hole.

5. The display panel according to claim 4, characterized in that, The ratio of the projected area of ​​the through hole on the substrate to the projected area of ​​the first light-shielding structure on the substrate is 2% to 10%.

6. The display panel according to any one of claims 2 to 5, characterized in that, The refractive index of the first light-shielding structure is 1.5 to 2.0; the refractive index of the planarization layer is 1.5 to 1.

6.

7. The display panel according to claim 4 or 5, characterized in that, The refractive index of the inorganic encapsulation layer is 1.8 to 2.

0.

8. The display panel according to any one of claims 2 to 5, characterized in that, At least one of the first filter units extends to the side of the first light-shielding structure away from the substrate.

9. The display panel according to any one of claims 2 to 5, characterized in that, The orthographic projection of the filter layer on the substrate overlaps with the orthographic projection of the first light-shielding structure on the substrate.

10. The display panel according to claim 1, characterized in that, The light-emitting layer also includes a plurality of second light-emitting units disposed in the conventional display area; The filter layer further includes a plurality of second filter units disposed corresponding to a plurality of second light-emitting units; The display panel further includes a second light-shielding structure located in the conventional display area. The second light-shielding structure is disposed on the side of the light-emitting layer away from the substrate. The second light-shielding structure has a plurality of second openings, and a plurality of second filter units are correspondingly disposed in the plurality of second openings. At least one second filter unit extends to the side of the second light-shielding structure away from the substrate.

11. The display panel according to claim 10, characterized in that, The orthographic projection of the filter layer on the substrate overlaps with the orthographic projection of the second light-shielding structure on the substrate.

12. The display panel according to claim 1, characterized in that, The light-emitting layer also includes a plurality of third light-emitting units disposed in the light-transmitting area; The filter layer further includes a plurality of third filter units disposed corresponding to the plurality of third light-emitting units; The display panel further includes a third light-shielding structure located in the light-transmitting area. The third light-shielding structure is disposed on the side of the light-emitting layer away from the substrate. The third light-shielding structure has a third opening and a plurality of fourth openings. A plurality of third filter units are correspondingly disposed in the plurality of fourth openings. At least one of the third filter units extends to the side of the third light-shielding structure away from the substrate.

13. The display panel according to claim 12, characterized in that, The orthographic projection of the filter layer on the substrate overlaps with the orthographic projection of the third light-shielding structure on the substrate.

14. A display device, characterized in that, Includes the display panel according to any one of claims 1 to 13.

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