Display panel, display device and preparation method of display panel

Abstract

The application discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, a light-emitting layer and a first light-absorbing part. The light-emitting layer is located on the substrate and comprises a plurality of light-emitting units arranged in an array in a third area. The light transmittance of a first area is greater than that of the third area, and the first area is used for arranging a light-sensing component to realize the light-sensing function of the display panel. The side of the substrate facing the light-emitting layer is provided with a reflecting part, and the reflecting part is used for reflecting light emitted by the light-emitting unit and reaching the reflecting part. The reflecting part and the first light-absorbing part are both located in a second area, which reduces the influence of the reflecting part and the first light-absorbing part on the light emission of the light-emitting unit and guarantees the display effect of the display panel. Part of the light emitted by the light-emitting unit enters the second area and reaches the reflecting part, the reflecting part reflects the light to the first light-absorbing part, the first light-absorbing part absorbs the light, so as to reduce the light entering the first area, thereby improving the problem that part of the light emitted by the light-emitting unit enters the first area and causes light leakage in the first area.

Description

Technical Field

[0001] This application relates to the field of displays, specifically to a display panel, a display device, and a method for manufacturing the display panel. Background Technology

[0002] With the rapid development of electronic devices, users have increasingly higher requirements for them, making the user experience of electronic devices a focus of more and more attention in the industry.

[0003] Traditional electronic devices such as mobile phones and tablets need to integrate components such as front-facing cameras, earpieces, and infrared sensors. Current technology involves creating notches or holes in the display screen, allowing external light to enter the photosensitive element located beneath the screen. However, this notching or hole-making causes light leakage in the perforated areas of the screen. Summary of the Invention

[0004] This application provides a display panel, a display device, and a method for manufacturing the display panel, aiming to improve the light leakage phenomenon in the hole area of ​​the display panel.

[0005] A first aspect of this application provides a display panel including a first region, a second region, and a third region, with at least a portion of the second region located between the first and third regions. The light transmittance of the first region is greater than that of the third region. The display panel includes: a substrate; a light-emitting layer located on the substrate and including a plurality of light-emitting units arranged in an array in the third region; and a first light-absorbing portion located on the side of the light-emitting layer away from the substrate and within the second region. A reflective portion is provided on the side of the substrate facing the light-emitting layer, and the reflective portion is located in the second region to reflect light emitted by the light-emitting units to the surface of the reflective portion to the first light-absorbing portion.

[0006] According to an embodiment of the first aspect of this application, the reflective portion is disposed around the first region.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the first light-absorbing portion is disposed around the first region.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the dimensions of the cross-section of the reflective portion tend to shrink as it moves further away from the substrate, the cross-section is perpendicular to the surface of the substrate near the light-emitting layer, and the extension direction of the cross-section is from the first region toward the third region; the cross-section includes a first bottom edge and a second bottom edge disposed opposite to each other in the thickness direction, the first bottom edge being located on the side of the second bottom edge away from the substrate, and the width of the first bottom edge being 30μm-40μm.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the cross-section is trapezoidal.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the cross-section is an isosceles trapezoid.

[0011] According to any of the foregoing embodiments of the first aspect of this application, there are multiple reflective portions, and the multiple reflective portions are spaced apart along the direction from the first region toward the third region.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the minimum distance between two adjacent reflective portions is equal to the width of the first bottom edge.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes an array layer located between a substrate and a light-emitting layer, and the thickness of the reflective portion in the thickness direction is greater than or equal to the thickness of the array layer.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the reflective portion and the substrate are either integrally disposed or separately disposed.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes an encapsulation layer and a touch layer, wherein the encapsulation layer is located on the side of the light-emitting layer facing away from the substrate, and the touch layer is located on the side of the encapsulation layer facing away from the substrate; the distance L0 between the reflective portion and the third region satisfies the following relationship:

[0016] L0≤h1*L / (2h1+h2)

[0017] Where h1 represents the total thickness of the array layer and the light-emitting layer along the thickness direction, h2 represents the total thickness of the encapsulation layer and the touch layer along the thickness direction, and L represents the width of the second region.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the reflective portion onto the substrate is located within the orthographic projection of the first light-absorbing portion onto the substrate.

[0019] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the first light-absorbing portion overlaps with the edge of the second region near the first region in the orthogonal projection of the substrate.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes an optical adhesive layer, and a first light-absorbing portion is located between the light-emitting layer and the optical adhesive layer.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes an optical adhesive layer, and a first light-absorbing portion is located between the light-emitting layer and the optical adhesive layer;

[0022] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a second light-absorbing portion, which is located within the optical adhesive layer and in the second region.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the second light-absorbing portion includes a light-absorbing block that penetrates the optical adhesive layer in the thickness direction; or, the second light-absorbing portion includes a plurality of light-absorbing particles that are spaced apart within the optical adhesive layer.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the diameter of the light-absorbing particles is smaller than the thickness of the optical adhesive layer in the thickness direction.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the maximum size of the second light-absorbing portion is less than or equal to the thickness of the optical adhesive layer in the thickness direction.

[0026] An embodiment of the second aspect of this application provides a display device that includes a display panel of any of the above embodiments.

[0027] An embodiment of the third aspect of this application provides a method for manufacturing a display panel. The display panel includes a first region, a second region, and a third region, with at least a portion of the second region located between the first and third regions. The light transmittance of the first region is greater than that of the third region. The manufacturing method includes:

[0028] A substrate is prepared, on which a reflective portion is disposed;

[0029] A light-emitting layer is prepared on the side of the substrate near the reflective portion. The light-emitting layer includes multiple light-emitting units arranged in an array in the third region.

[0030] A first light-absorbing portion is prepared on the side of the light-emitting layer away from the substrate. Both the reflective portion and the first light-absorbing portion are located in the second region so as to reflect the light emitted by the light-emitting unit to the surface of the reflective portion to the first light-absorbing portion.

[0031] According to an embodiment of this application, the display panel includes a substrate, a light-emitting layer, and a first light-absorbing portion. The light-emitting layer is located on the substrate and includes multiple light-emitting units arranged in an array in a third region. The light-emitting units emit light, causing the third region to emit light and display. The light transmittance of the first region is greater than that of the third region. The first region is used to house a photosensitive component to realize the light-sensing function of the display panel. A reflective portion is provided on the side of the substrate facing the light-emitting layer. The reflective portion is used to reflect light emitted by the light-emitting units and reaching the reflective portion. Both the reflective portion and the first light-absorbing portion are located in a second region, reducing the influence of the reflective portion and the first light-absorbing portion on the light emission of the light-emitting units and ensuring the display effect of the display panel. Part of the light emitted by the light-emitting units enters the second region and reaches the reflective portion. The reflective portion reflects the light to the first light-absorbing portion, which absorbs the light to reduce the light entering the first region, thereby improving the problem of light leakage in the first region caused by part of the light emitted by the light-emitting units entering the first region. Attached Figure Description

[0032] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0033] Figure 1 This is a top view of a display panel according to an embodiment of the first aspect of this application;

[0034] Figure 2 yes Figure 1 A partial sectional view at point AA in the middle;

[0035] Figure 3 This is a top view of a display panel according to another embodiment;

[0036] Figure 4 This is a partial cross-sectional view of a display panel provided in another embodiment;

[0037] Figure 5 This is a partial cross-sectional view of a display panel provided in yet another embodiment;

[0038] Figure 6 This is a partial cross-sectional view of a display panel provided in another embodiment;

[0039] Figure 7 This is a partial cross-sectional view of a display panel provided in another embodiment;

[0040] Figure 8 This is a partial cross-sectional view of a display panel provided in another embodiment;

[0041] Figure 9 This is a partial cross-sectional view of a display panel provided in another embodiment;

[0042] Figure 10 This is a partial cross-sectional view of a display device provided in the second aspect of this application;

[0043] Figure 11 This is a schematic flowchart of a method for manufacturing a display panel according to a third aspect embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 10. Display panel; 11. First zone; 12. Second zone; 13. Third zone;

[0046] 100. Substrate; 110. Reflective element; 111. First bottom edge; 112. Second bottom edge;

[0047] 200, Light-emitting layer; 210, Light-emitting unit;

[0048] 300. First light-absorbing section;

[0049] 400, Array layer;

[0050] 500, Encapsulation layer;

[0051] 600, Touch layer;

[0052] 700, Optical adhesive layer; 710, Second light-absorbing part; 720, Cover plate;

[0053] 800, protective film;

[0054] 900, composite film layer;

[0055] Z, thickness direction. Detailed Implementation

[0056] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0058] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0059] In electronic devices such as mobile phones and tablets, it is necessary to integrate light-sensing components such as front-facing cameras, infrared light sensors, and proximity sensors on one side of the display panel. In some embodiments, a light-transmitting area can be provided on the aforementioned electronic device, and the light-sensing components can be placed behind the light-transmitting area. To improve the light-sensing performance of the light-sensing components, their light transmittance needs to be increased.

[0060] To improve the light transmittance of the light-transmitting area, notches or openings can be made in the display screen, allowing external light to enter the photosensitive element located below the screen. However, after notching or opening, some light from the display area will reach the light-transmitting area, causing light leakage in the light-transmitting display area. Light leakage in the light-transmitting display area includes two types: the first is that light from the display area reaches the substrate near the edge of the light-transmitting area and is reflected back to the light-transmitting area by the substrate; the second is that the optical adhesive layer has a high refractive index, causing light entering the optical adhesive layer to undergo total internal reflection within the optical adhesive layer, thus reaching the light-transmitting area.

[0061] To address the aforementioned problems, this application provides a display panel, a display device, and a method for manufacturing the display panel. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel, display device, and method for manufacturing the display panel.

[0062] This application provides a display panel, which may be an organic light-emitting diode (OLED) display panel.

[0063] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a top view of a display panel according to an embodiment of the first aspect of this application; Figure 2 yes Figure 1 A partial sectional view at point AA.

[0064] like Figure 1 and Figure 2As shown, a first aspect embodiment of this application provides a display panel 10, which includes a first region 11, a second region 12, and a third region 13. At least a portion of the second region 12 is located between the first region 11 and the third region 13. The light transmittance of the first region 11 is greater than that of the third region 13. The display panel 10 includes a substrate 100, a light-emitting layer 200, and a first light-absorbing portion 300. The light-emitting layer 200 is located on the substrate 100 and includes a plurality of light-emitting units 210 arranged in an array in the third region 13. The first light-absorbing portion 300 is located on the side of the light-emitting layer 200 away from the substrate 100. A reflective portion 110 is provided on the side of the substrate 100 facing the light-emitting layer 200. Both the reflective portion 110 and the first light-absorbing portion 300 are located in the second region 12 to reflect the light emitted by the light-emitting units 210 to the surface of the reflective portion 110 to the first light-absorbing portion 300.

[0065] According to an embodiment of this application, the display panel 10 includes a substrate 100, a light-emitting layer 200, and a first light-absorbing portion 300. The light-emitting layer 200 is located on the substrate 100 and includes a plurality of light-emitting units 210 arranged in an array in a third region 13. The light-emitting units 210 emit light, causing the third region 13 to emit light and display. The light transmittance of the first region 11 is greater than that of the third region 13. The first region 11 is used to house a photosensitive component to realize the light-sensing function of the display panel 10. A reflective portion 110 is provided on the side of the substrate 100 facing the light-emitting layer 200. The reflective portion 110 is used to reflect the light emitted by the light-emitting units 210 and reaching the reflective portion 110. Both the reflective portion 110 and the first light-absorbing portion 300 are located in the second region 12, reducing the influence of the reflective portion 110 and the first light-absorbing portion 300 on the light emission of the light-emitting units 210 and ensuring the display effect of the display panel 10. Part of the light emitted by the light-emitting unit 210 enters the second region 12 and reaches the reflective part 110. The reflective part 110 reflects the light to the first light-absorbing part 300. The first light-absorbing part 300 absorbs the light to reduce the light entering the first region 11, thereby improving the problem of light leakage in the first region 11 caused by part of the light emitted by the light-emitting unit 210 entering the first region 11.

[0066] Optionally, the first area 11 is a light-transmitting area or a hole area, and is used to set a photosensitive component. The photosensitive component can be set on the backlight side of the display panel 10 within the first area 11.

[0067] Optionally, the substrate 100 is made of polyimide (PI). PI substrate 100 has low light transmittance and high reflectivity, so light is reflected when it reaches the substrate 100. The substrate 100 located in the third region 13 can reflect light to the light-emitting surface of the display panel 10 to improve the display effect. The substrate 100 located in the second region 12 can reflect a portion of the light entering the second region 12 to the first light-absorbing part 300, thereby reducing the light entering the first region 11 and improving the light leakage phenomenon in the first region 11.

[0068] Optionally, the display panel 10 includes a light filter layer disposed on the side of the light-emitting layer 200 opposite to the substrate 100. The light filter layer includes spaced-apart filter sections and black matrices (BMs). The filter sections filter ambient light entering the third region 13, reducing the impact of ambient light on the light emission of the third region 13. The BMs are disposed between adjacent filter sections to improve the problem of light mixing between filter sections.

[0069] Optionally, the first light-absorbing part 300 is BM, and the first light-absorbing part 300 and the filter layer have the same material. When the filter layer of the display panel 10 is prepared, the first light-absorbing part 300 can be prepared at the same time, simplifying the preparation process.

[0070] Please see Figure 3 , Figure 3 This is a top view of a display panel provided in another embodiment.

[0071] like Figure 3 As shown, optionally, the reflective portion 110 is arranged around the first region 11, that is, a reflective portion 110 is correspondingly arranged at each position around the first region 11, and the surrounding reflective portion 110 has a large reflection range. When the light emitted by the light-emitting unit 210 in the third region 13 enters the second region 12, the reflective portion 110 can receive the light emitted by the light-emitting unit 210 around the first region 11 and reflect it to the first light-absorbing portion 300, further reducing the light entering the first region 11.

[0072] Optionally, the first light-absorbing part 300 is arranged around the first region 11. The first light-absorbing part 300 is arranged around the first region 11. When the reflective part 110 around the first region 11 receives light from the third region 11, it can be reflected to the first light-absorbing part 300 and absorbed by the first light-absorbing part 300, so as to reduce the light entering the first region 11.

[0073] Please see Figure 4 , Figure 4 This is a partial cross-sectional view of a display panel provided in another embodiment.

[0074] like Figure 4 As shown, in some optional embodiments, the cross-sectional dimensions of the reflective portion 110 tend to shrink as it moves further away from the substrate 100. The cross-section is perpendicular to the surface of the substrate 100 near the light-emitting layer, and the extension direction of the cross-section is from the first region 11 toward the third region 13. The cross-section includes a first bottom edge 111 and a second bottom edge 112 disposed opposite to each other in the thickness direction Z. The first bottom edge 111 is located on the side of the second bottom edge 112 away from the substrate 100, and the width of the first bottom edge 111 is 30μm-40μm.

[0075] In these optional embodiments, the cross-sectional dimensions of the reflective portion 110 decrease in the direction away from the substrate 100, that is, the width of the first bottom edge 111 is smaller than the width of the second bottom edge 112, i.e., the cross-section is a trapezoidal structure. When light reaches the side connecting the first bottom edge 111 and the second bottom edge 112, it will be reflected to the first light-absorbing portion 300 or the light-emitting surface of the display panel 10. The first bottom edge 111 is disposed away from the substrate 100. When the light emitted by the light-emitting unit 210 enters the second region 12 from the third region 13, part of the light reaches the first bottom edge 111 and is reflected to the first light-absorbing portion 300 via the first bottom edge 111. The width of the first bottom edge 111 is greater than or equal to 30 μm to improve the problem that the reflective portion 110 has too small a light-receiving range due to the small width of the first bottom edge 111, which cannot effectively reduce the light entering the first region 11 and the light leakage phenomenon is still relatively serious. The width of the first bottom edge 111 is less than or equal to 40 μm to improve the problem of increased material cost due to the excessive width of the first bottom edge 111. In addition, the range in which the first bottom edge 111 can reflect light to the first light-absorbing part 300 is limited. If the width of the first bottom edge 111 is too large, some areas may reflect light into the first region 11.

[0076] Optionally, the first bottom edge 111 and the second bottom edge 112 are arranged in parallel. When some light reaches the first bottom edge 111, it can be directly reflected to the first light-absorbing part 300.

[0077] Optionally, the width of the first bottom edge 111 is greater than the width of the second bottom edge 112, that is, the cross-section is an inverted trapezoidal structure. When light reaches the side, it will be reflected to the surface of the substrate 100, and then reflected to the light-emitting surface through the surface of the substrate 100, thereby improving the display effect of the display panel 10.

[0078] Optionally, the cross-section is an isosceles trapezoid. The isosceles trapezoidal reflector 110 has a regular structure, which facilitates its fabrication.

[0079] Optionally, the cross-section of the reflective portion 110 is rectangular or arc-shaped. For example, the reflective portion 110 extends along an extension path surrounding the first region 11, and the cross-section of the reflective portion 110 refers to the cross-section of the reflective portion 110 on the plane intersecting the extension path.

[0080] In these alternative embodiments, the cross-section of the reflective portion 110 is rectangular or arc-shaped, so that the reflective portion 110 has a more regular shape, which facilitates the fabrication of the reflective portion 110.

[0081] Please see Figure 5 , Figure 5 This is a partial cross-sectional view of a display panel provided in another embodiment.

[0082] like Figure 5As shown, in some optional embodiments, there are multiple reflective portions 110, and the multiple reflective portions 110 are spaced apart along the direction from the first region 11 to the third region 13.

[0083] In these alternative embodiments, multiple reflective portions 110 are spaced apart along the direction from the first region 11 toward the third region 13. The multiple reflective portions 110 increase the light receiving range, allowing more light to reach the reflective portions 110 and be reflected to the first light-absorbing portion 300. Furthermore, by using the multiple reflective portions 110 in conjunction, the size and position of each reflective portion 110 can be adjusted to more accurately reflect light to the first light-absorbing portion 300.

[0084] Optionally, multiple reflective parts 110 are evenly distributed, and the uniform arrangement of reflective parts 110 facilitates the fabrication of reflective parts 110.

[0085] Optionally, the distance between each reflective part 110 may be different. The distance between each reflective part 110 may be adjusted according to the actual reflection requirements so as to reflect more light to the first light-absorbing part 300.

[0086] In some optional embodiments, the minimum distance between two adjacent reflective portions 110 is equal to the width of the first bottom edge 111. When the width of the first bottom edge 111 is less than the width of the second bottom edge 112, the minimum distance between two adjacent reflective portions 110 is the distance between the second bottom edges 112 of the two adjacent reflective portions 110.

[0087] In these optional embodiments, the distance between adjacent reflective portions 110 is equal to the width of the first bottom edge 111, resulting in a regular structure that facilitates the fabrication of the reflective portions 110. On the one hand, this improves the problem that if the distance between adjacent reflective portions 110 is too small, the light receiving range of the reflective portion 110 will be too small, making it difficult to effectively reduce the light entering the first region 11, and the light leakage phenomenon will still be relatively serious. On the other hand, this improves the problem that if the distance between adjacent reflective portions 110 is too large, some areas will reflect light into the first region 11.

[0088] Please see Figure 6 , Figure 6 This is a partial cross-sectional view of a display panel provided in another embodiment.

[0089] like Figure 6 As shown, in some optional embodiments, the display panel 10 includes an array layer 400 located between the substrate 100 and the light-emitting layer 200, and the thickness of the reflective portion 110 in the thickness direction Z is greater than or equal to the thickness of the array layer 400.

[0090] In these optional embodiments, the array layer 400 is used to provide a driving circuit for controlling the light-emitting unit 210 to emit light. The array layer 400 is located between the substrate 100 and the light-emitting layer 200, and the reflective portion 110 protrudes from the substrate 100, that is, at least part of the reflective portion 110 is disposed inside the array layer 400. The reflective portion 110 is disposed inside the array layer 400 to be close to the light-emitting layer 200, so that more light entering the second region 12 can reach the reflective portion 110 and be reflected to the first light-absorbing portion 300. When the thickness of the reflective portion 110 is greater than the thickness of the array layer 400, the reflective portion 110 extends into the light-emitting layer 200 in the thickness direction Z, increasing the light reflection range of the reflective portion 110 and further reducing the light entering the first region 11. When the thickness of the reflective portion 110 is equal to the thickness of the array layer 400, it can have a large reflection range while reducing the impact of the reflective portion 110 entering the light-emitting layer 200 on the light-emitting layer 200.

[0091] Optionally, the reflector 110 and the substrate 100 can be integrated or separate.

[0092] In these alternative embodiments, the reflective portion 110 and the substrate 100 are integrally disposed, the reflective portion 110 is made of the same material as the substrate 100 and is fabricated together with the substrate 100, simplifying the fabrication process. In this case, the substrate 100 material is also a reflective material, and when light reaches the substrate 100, it can be reflected to the light-emitting surface of the display panel 10 or the first light-absorbing portion 300. Alternatively, the reflective portion 110 and the substrate 100 can be disposed separately, with the fabrication material of the reflective portion 110 deposited on the substrate 100. The material of the reflective portion 110 can be adjusted according to actual needs to better reflect light entering the second region 12.

[0093] Please see Figure 7 , Figure 7 This is a partial cross-sectional view of a display panel provided in another embodiment.

[0094] like Figure 7 As shown, in some optional embodiments, the display panel 10 further includes an encapsulation layer 500 and a touch layer 600. The encapsulation layer 500 is located on the side of the light-emitting layer 200 facing away from the substrate 100, and the touch layer 600 is located on the side of the encapsulation layer 500 facing away from the substrate 100. The distance L0 between the reflective portion 110 and the third region 13 satisfies the following relationship:

[0095] L0≤h1*L / (2h1+h2)

[0096] Where h1 represents the total thickness of the array layer 400 and the light-emitting layer 200 along the thickness direction Z, h2 represents the total thickness of the encapsulation layer 500 and the touch layer 600 along the thickness direction Z, and L represents the width of the second region 13.

[0097] The width L of the second zone 12 refers to the minimum extension distance of the second zone 12 along the direction from the first zone 11 to the third zone 13.

[0098] In these optional embodiments, the encapsulation layer 500 is disposed on the side of the light-emitting layer 200 facing away from the substrate 100, and is used to encapsulate the light-emitting layer 200 to isolate water and oxygen, thereby improving the problem of water and oxygen entering the light-emitting layer 200 and corroding the light-emitting unit 210. The touch layer 600 is used to realize the touch function of the display panel 10. The first light-absorbing part 300 is aligned with the edge of the first region 11 and the edge of the second region 12, so that the first light-absorbing part 300 can absorb light farther away from the third region 13, thereby improving the degree of light absorption. The maximum distance L0 between the reflective part 110 and the third region 13 is h1*L / (2h1+h2). At this distance, the reflective part 110 can receive light reflected by the reflective part 110 to the edge of the first light-absorbing part 300 near the first region 11. That is, light that can be reflected to the first light-absorbing part 300 and is furthest from the third region 13 can be received by the reflective part 110 and reflected to the first light-absorbing part 300, thereby minimizing the amount of light entering the first region 11 and improving the light leakage phenomenon in the first region 11. When the distance L0 is less than h1*L / (2h1+h2), the reflective part 110 can receive and reflect a portion of the light to the first light-absorbing part 300, thereby improving the problem that due to the distance L0 being too large, the reflective part 110 receives and reflects less light to the first light-absorbing part 300, and most of the light still enters the first region 11, causing light leakage.

[0099] In some alternative embodiments, the orthographic projection of the reflective portion 110 onto the substrate 100 lies within the orthographic projection of the first light-absorbing portion 300 onto the substrate 100.

[0100] In these alternative embodiments, the first light-absorbing portion 300 is positioned such that its orthogonal projection onto the substrate 100 covers the orthogonal projection onto the substrate 100. The first light-absorbing portion 300 has a large light-absorbing range so that it absorbs light reflected by the reflective portion 110 to a greater extent, thereby reducing the amount of light entering the first region 11.

[0101] Optionally, at least a portion of the first light-absorbing portion 300 may overlap with the edge of the second region 12 near the first region 11 on the orthographic projection edge of the substrate 100. Extending the first light-absorbing portion 300 to the edge of the second region 12 near the first region 11 increases the light absorption range of the first light-absorbing portion 300, allowing more of the large-angle light reflected from the reflective portion 110 to reach the first light-absorbing portion 300, thus better reducing the amount of light entering the first region 11.

[0102] Optionally, the first light-absorbing part 300 may extend partially into the first region 11 to further increase the light-absorbing range of the first light-absorbing part 300.

[0103] Optionally, the first light-absorbing part 300 is configured to cover the second region 12. When the second region 12 is completely covered by the first light-absorbing part 300, more light entering the second region 12 can be absorbed by the first light-absorbing part 300, further reducing the light entering the first region 11.

[0104] Please refer to the following: Figure 8 and Figure 9 , Figure 8 This is a partial cross-sectional view of a display panel provided in another embodiment; Figure 9 This is a partial cross-sectional view of a display panel provided in another embodiment.

[0105] like Figure 8 and Figure 9 As shown, in some optional embodiments, the display panel 10 includes an optical adhesive layer 700, and a first light-absorbing portion 300 is located between the light-emitting layer 200 and the optical adhesive layer 700.

[0106] In these optional embodiments, the first light-absorbing portion 300 is located between the light-emitting layer 200 and the optical adhesive layer 700. On the one hand, the first light-absorbing portion 300 absorbs part of the light from the light-emitting unit 210 and part of the light reflected from the reflective portion 110. On the other hand, the light emitted by the light-emitting unit 210 undergoes a waveguide effect after entering the optical adhesive layer 700. The portion of the light that undergoes the waveguide reaction reaches the first light-absorbing portion 300 and can be absorbed by the first light-absorbing portion 300, thereby reducing the light reaching the first region 11. The optical adhesive layer 700 is used to bond the film layers, such as a cover plate 720, to the display panel 10.

[0107] Waveguide reaction refers to the fact that since the refractive index of the optical adhesive layer 700 is greater than that of the adjacent film layer, when light enters the optical adhesive layer 700 and reaches the interface between the optical adhesive layer 700 and other film layers, total internal reflection will occur, and the light will be continuously reflected inside the optical adhesive layer 700 until it reaches the first region 11.

[0108] In some alternative embodiments, the display panel 10 further includes a second light-absorbing portion 710 located within the optical adhesive layer 700.

[0109] In these alternative embodiments, the second light-absorbing portion 710 is disposed within the optical adhesive layer 700 so that the portion of light entering the optical adhesive layer 700 and undergoing a waveguide effect can be absorbed by the second light-absorbing portion 710, thereby reducing the light entering the first region 11 via the optical adhesive layer 700.

[0110] like Figure 8 As shown, optionally, the second light-absorbing part 710 is located in the second region 12.

[0111] like Figure 8As shown, optionally, the second light-absorbing portion 710 includes a light-absorbing block that penetrates the optical adhesive layer 700 in the thickness direction Z. Light that undergoes a waveguide effect in the optical adhesive layer 700, after multiple reflections from the third region 13 to the first region 11, will reach the second light-absorbing portion 710 and be absorbed, further reducing the amount of light entering the first region 11. Indicatively, in some embodiments, the light-absorbing block is configured with a black matrix.

[0112] like Figure 9 As shown, optionally, the second light-absorbing portion 710 includes a plurality of light-absorbing particles 711, which are spaced apart within the optical adhesive layer 700. The spaced arrangement of the plurality of light-absorbing particles 711 allows more light that undergoes a waveguide effect within the optical adhesive layer 700 to be absorbed by the light-absorbing particles 711, further reducing the amount of light entering the first region 11.

[0113] Optionally, the diameter of the light-absorbing particles 711 is smaller than the thickness of the optical adhesive layer 70 in the thickness direction Z, which can absorb the light that causes the waveguide effect to a greater extent, further reduce the light entering the first region 11 from the optical adhesive layer 700, and ensure the functional characteristics of the optical adhesive layer.

[0114] The structural design in this embodiment can be applied to other display panels 10. The specific choice can be made according to the actual situation, and this application does not impose any specific restrictions on it.

[0115] The second aspect of this application also provides a display device, including the display panel 10 of any of the first aspect embodiments described above. Since the display device provided in the second aspect of this application includes the display panel 10 of any of the first aspect embodiments described above, it has the beneficial effects of the display panel 10 of any of the first aspect embodiments described above, which will not be elaborated further here.

[0116] Please see Figure 10 , Figure 10 This is a partial cross-sectional view of a display device provided in the second aspect of this application.

[0117] like Figure 10 As shown, optionally, the display device includes a protective film 800 disposed on the side of the substrate 100 away from the light-emitting layer 200 for supporting and protecting the display panel 10.

[0118] Optionally, the display device includes a composite film layer 900 disposed on the side of the protective film 800 facing away from the substrate 100. The composite film layer 900 includes an SCF (Super Clean Foam) assembly, which includes a buffer layer, an adhesive layer, and a metal layer stacked together. The buffer layer is made of foam. When the display device is impacted, the buffer layer can provide cushioning to reduce damage to the display panel 10. The adhesive layer is used to bond the buffer layer and the metal layer. The metal layer can discharge static electricity from the display panel 10 to reduce the impact of static electricity on the display panel 10.

[0119] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0120] Please see Figure 11 , Figure 11 This is a schematic flowchart illustrating a method for manufacturing a display panel according to a third aspect embodiment of this application. See also... Figures 1 to 10 The display panel.

[0121] An embodiment of the third aspect of this application provides a method for manufacturing a display panel 10. The display panel 10 includes a first region 11, a second region 12, and a third region 13, with at least a portion of the second region 12 located between the first region 11 and the third region 13. The light transmittance of the first region 11 is greater than that of the third region 13. The manufacturing method includes:

[0122] Step S01: Prepare a substrate with a reflective portion.

[0123] Step S02: Prepare a light-emitting layer on the side of the substrate near the reflective part. The light-emitting layer includes multiple light-emitting units arranged in an array in the third region.

[0124] Step S03: A first light-absorbing part is prepared on the side of the light-emitting layer away from the substrate. Both the reflective part and the first light-absorbing part are located in the second region so as to reflect the light emitted by the light-emitting unit to the surface of the reflective part to the first light-absorbing part.

[0125] According to the manufacturing method of the display panel 10 in this application embodiment, the light transmittance of the first region 11 is greater than that of the third region 13. The first region 11 is used to set a photosensitive component to realize the photosensitive function of the display panel 10. A substrate 100 is prepared in step S01. A reflective portion 110 is provided on the side of the substrate 100 facing the light-emitting layer 200. The reflective portion 110 is used to reflect light emitted by the light-emitting unit 210 and reaching the reflective portion 110. A light-emitting layer 200 is prepared in step S02. The light-emitting layer 200 is located on the substrate 100 and includes a plurality of light-emitting units 210 arranged at intervals in the third region 13. The light-emitting units 210 emit light, causing the third region 13 to emit light and display. A first light-absorbing portion 300 is prepared in step S03. Both the reflective portion 110 and the first light-absorbing portion 300 are located in the second region 12, reducing the influence of the reflective portion 110 and the first light-absorbing portion 300 on the light emission of the light-emitting unit 210 and ensuring the display effect of the display panel 10. Part of the light emitted by the light-emitting unit 210 enters the second region 12 and reaches the reflective part 110. The reflective part 110 reflects the light to the first light-absorbing part 300. The first light-absorbing part 300 absorbs the light to reduce the light entering the first region 11, thereby improving the problem of light leakage in the first region 11 caused by part of the light emitted by the light-emitting unit 210 entering the first region 11.

[0126] In some optional embodiments, step S01 includes,

[0127] A substrate material is disposed on the substrate;

[0128] Photoresist is coated on the side of the substrate material facing away from the substrate and then exposed.

[0129] A substrate is obtained by etching with a developer solution. The substrate includes a reflective portion protruding toward the light-emitting layer.

[0130] The embodiments described above are not exhaustive, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that, The display panel includes a first area, a second area, and a third area, with at least a portion of the second area located between the first area and the third area. The light transmittance of the first area is greater than that of the third area. The display panel includes: Substrate; A light-emitting layer, located on the substrate, and comprising a plurality of light-emitting units arranged in an array within the third region; and, The first light-absorbing part is located on the side of the light-emitting layer away from the substrate and within the second region; The substrate has a reflective portion on the side facing the light-emitting layer. The reflective portion is located in the second region to reflect the light emitted by the light-emitting unit to the surface of the reflective portion to the first light-absorbing portion. The cross-section of the reflective portion tends to shrink as it moves away from the substrate. The cross-section is perpendicular to the surface of the substrate near the light-emitting layer, and the extension direction of the cross-section is from the first region toward the third region. The cross-section includes a first bottom edge and a second bottom edge disposed opposite each other in the thickness direction. The first bottom edge is located on the side of the second bottom edge away from the substrate, and the width of the first bottom edge is 30μm-40μm.

2. The display panel according to claim 1, characterized in that, The reflective element is arranged around the first region.

3. The display panel according to claim 1, characterized in that, The first light-absorbing part is arranged around the first region.

4. The display panel according to claim 1, characterized in that, The cross-section is trapezoidal.

5. The display panel according to claim 1, characterized in that, The cross-section is an isosceles trapezoid.

6. The display panel according to claim 1, characterized in that, The reflective portion is a plurality of portions, which are spaced apart along the direction from the first region toward the third region.

7. The display panel according to claim 6, characterized in that, The minimum distance between two adjacent reflective portions is equal to the width of the first bottom edge.

8. The display panel according to claim 1, characterized in that, The display panel includes an array layer located between the substrate and the light-emitting layer, and the thickness of the reflective portion in the thickness direction is greater than or equal to the thickness of the array layer.

9. The display panel according to claim 1, characterized in that, The reflective part and the substrate are either integrally formed or separately formed.

10. The display panel according to claim 8, characterized in that, The display panel further includes an encapsulation layer and a touch layer. The encapsulation layer is located on the side of the light-emitting layer that faces away from the substrate, and the touch layer is located on the side of the encapsulation layer that faces away from the substrate. The distance L0 between the reflective portion and the third region satisfies the following relationship: L0≤h1*L / (2h1+h2) Where h1 represents the total thickness of the array layer and the light-emitting layer along the thickness direction, h2 represents the total thickness of the encapsulation layer and the touch layer along the thickness direction, and L represents the width of the second region.

11. The display panel according to claim 1, characterized in that, The orthographic projection of the reflective portion onto the substrate lies within the orthographic projection of the first light-absorbing portion onto the substrate.

12. The display panel according to claim 1, characterized in that, At least a portion of the first light-absorbing portion has its orthographic projection edge on the substrate coincide with the edge of the second region near the first region.

13. The display panel according to claim 1, characterized in that, The display panel includes an optical adhesive layer, and the first light-absorbing portion is located between the light-emitting layer and the optical adhesive layer.

14. The display panel according to claim 13, characterized in that, The display panel further includes a second light-absorbing portion, which is located within the optical adhesive layer and in the second region.

15. The display panel according to claim 14, characterized in that, The second light-absorbing part includes a light-absorbing block that penetrates the optical adhesive layer in the thickness direction; or, the second light-absorbing part includes a plurality of light-absorbing particles that are spaced apart within the optical adhesive layer.

16. The display panel according to claim 15, characterized in that, The diameter of the light-absorbing particles is smaller than the thickness of the optical adhesive layer in the thickness direction.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1-16.

18. A method for manufacturing a display panel, characterized in that, The display panel includes a first region, a second region, and a third region, with at least a portion of the second region located between the first region and the third region. The light transmittance of the first region is greater than that of the third region. The manufacturing method includes: A substrate is prepared, on which a reflective portion is disposed. The cross-sectional dimensions of the reflective portion tend to shrink as it moves away from the substrate, and the extension direction of the cross-section is from the first region toward the third region. The cross-section includes a first bottom edge and a second bottom edge disposed opposite to each other in the thickness direction. The first bottom edge is located on the side of the second bottom edge away from the substrate, and the width of the first bottom edge is 30μm-40μm. A light-emitting layer is formed on the side of the substrate near the reflective portion. The light-emitting layer includes a plurality of light-emitting units arranged in an array in the third region. The cross-section is perpendicular to the surface of the substrate near the light-emitting layer. A first light-absorbing portion is formed on the side of the light-emitting layer opposite to the substrate. Both the reflective portion and the first light-absorbing portion are located in the second region, so as to reflect the light emitted by the light-emitting unit to the surface of the reflective portion to the first light-absorbing portion.

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