Display panel

Abstract

This application provides a display panel. The display panel includes a light-emitting device layer, a touch metal layer, and a plurality of color resist units. The light-emitting device layer includes a plurality of light-emitting devices. The touch metal layer is disposed on the light-emitting side of the light-emitting device layer. The touch metal layer has a plurality of first openings, each first opening corresponding to one light-emitting device. Each light-emitting device corresponds to one color resist unit. At least a portion of the color resist unit is disposed within the first opening. By disposing the color resist unit in the touch metal layer, since the thickness of the touch metal layer is relatively small, the touch metal layer has a smaller impact on the flatness of the color resist unit, which can reduce the step difference between the edge and center portions of the color resist unit and improve the consistency of the thickness of the color resist unit. Therefore, this display panel is beneficial in improving the consistency of brightness attenuation of light passing through different positions of the color resist unit, thereby helping to solve the problem of color shift in the display panel.

Description

Technical Field

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

[0002] With the development of electronic devices, their functions are becoming increasingly rich, and more and more electronic devices are equipped with OLED (Organic Light Emitting Diode) displays.

[0003] Traditional OLED displays contain polarizers to combat reflections and ensure normal screen operation. However, polarizers are thick and brittle, hindering the development of dynamically bending products. Related technologies employ a color filter on encapsulation (COE) process, combining a color filter (CF) and a black matrix (BM) to replace the polarizer. This COE process can reduce the display's thickness and improve its bending performance.

[0004] However, displays that use color filters to replace polarizers suffer from severe color shift issues. Summary of the Invention

[0005] This application provides a display panel to solve the problem of severe color deviation in displays that use color filter technology instead of polarizers.

[0006] On one hand, this application provides a display panel including a light-emitting device layer, a touch metal layer, and a plurality of color resist units. The light-emitting device layer includes a plurality of light-emitting devices. The touch metal layer is disposed on the light-emitting side of the light-emitting device layer. The touch metal layer has a plurality of first openings, each first opening corresponding to one light-emitting device. Each light-emitting device corresponds to one color resist unit. At least a portion of the color resist unit is disposed within the first opening.

[0007] In the aforementioned display panel, the color resist unit is disposed within the first opening formed by the touch metal layer. Because the touch metal layer has a relatively small thickness, its impact on the flatness of the color resist unit is minimal, reducing the step difference between the edge and center portions of the color resist unit and improving the thickness consistency throughout the unit. Therefore, this display panel is beneficial in improving the consistency of the optical path length of light passing through the color resist unit from different positions within it. This, in turn, improves the consistency of brightness attenuation at different positions of the color resist unit, thereby enhancing the consistency of the display effect throughout the panel and reducing color shift.

[0008] According to some optional embodiments, the side of the color resist unit away from the light-emitting device layer is planar, and the thickness of all parts of the color resist unit is equal along the thickness direction perpendicular to the display panel. This is beneficial to ensure that the brightness attenuation after light passes through the color resist unit is consistent, thereby improving the display performance of the display panel.

[0009] According to some optional embodiments, along the thickness direction of the display panel, the orthographic projection of the color resist unit onto the surface where the touch metal layer is located lies within the first opening. This is beneficial for further reducing the step difference between the edge and center portions of the color resist unit, and improving the consistency of the thickness of the color resist unit throughout.

[0010] According to some optional embodiments, the display panel further includes a black matrix layer stacked on the side of the touch metal layer opposite to the light-emitting device layer, the black matrix layer having a plurality of second openings. The second openings expose at least a portion of the color-blocking units. Thus, external light is incident on the display panel. The black matrix layer can absorb at least a portion of the externally incident light. This is beneficial for reducing the intensity of ambient light reflection from the display panel and improving the display performance of the display panel. The second openings expose at least a portion of the color-blocking units, thereby allowing light emitted by the light-emitting device to be filtered by the color-blocking units and then emitted from the second openings.

[0011] In some preferred embodiments, a second opening is opposite a color resist cell, such that the second opening can expose at least a portion of the color resist cell.

[0012] According to some alternative embodiments, at least a portion of the black matrix layer is stacked on the side of the color resist unit facing away from the light-emitting device layer. That is, the black matrix layer and the color resist unit are located in different layer structures. Therefore, the display panel can avoid the black matrix layer affecting the shape of the color resist unit, thereby improving the consistency of the thickness of the color resist unit.

[0013] According to some optional embodiments, along the side of the black matrix layer closer to the light-emitting device layer towards the side of the black matrix layer farther from the light-emitting device layer, the size of the second opening, perpendicular to the thickness direction of the display panel, gradually increases. This is beneficial for increasing the viewing angle range of the display panel.

[0014] According to some alternative embodiments, along the thickness direction of the display panel, the orthographic projection of the color resist unit on the surface where the black matrix layer is located covers the second opening.

[0015] The display panel provided in the above embodiments can ensure that the light emitted by the light-emitting devices in the light-emitting device layer passes through the corresponding color resist unit, so that the light within the preset wavelength range emitted by the light-emitting devices can pass through the color resist unit, thereby improving the display performance of the display panel.

[0016] According to some alternative embodiments, the display panel further includes a plurality of refractive units. The refractive units are disposed within the second opening. One refractive unit is opposite to one color resist unit, and the refractive units are stacked on the side of the opposite color resist unit facing away from the light-emitting device layer.

[0017] In the display panel provided in the above embodiments, the refractive unit can be used to change the light path of the light passing through the color resist unit, and adjust the light path of the light passing through the color resist unit as needed, so that some of the light passing through the color resist unit avoids or illuminates the black matrix layer, thereby helping to weaken or eliminate color shift of the display panel and improve the consistency of display performance in various parts of the display panel.

[0018] According to some optional embodiments, the outer peripheral wall of the refractive unit is fitted and connected to the inner sidewall of the second opening, that is, the refractive unit is embedded in the second opening. This helps to ensure that all light passing through the color resist unit can be refracted by the refractive unit, thereby improving the consistency of display performance throughout the display panel and reducing or eliminating color shift of the display panel.

[0019] According to some optional embodiments, along the light emission direction of the light-emitting device layer, the cross-sectional area of ​​the second opening, perpendicular to the thickness direction of the display panel, gradually increases. The cross-sectional area of ​​the refractive element, perpendicular to the thickness direction of the display panel, also gradually increases. This not only helps to increase the viewing angle range of the display panel but also helps to reduce or eliminate color shift in the display panel.

[0020] According to some optional embodiments, the plurality of color resist units include a blue color resist unit, the blue color resist unit having a first refractive index. A refractive unit stacked on the side of the blue color resist unit facing away from the light-emitting device layer has a second refractive index, the second refractive index being less than the first refractive index.

[0021] In the above embodiments, the refractive index of the refractive unit stacked on the blue light color resist unit is less than that of the blue light color resist unit, which is beneficial to increasing the attenuation of blue light brightness and thus helping to solve the problem of severe color shift and blue tint in the display panel at large viewing angles.

[0022] According to some optional embodiments, the plurality of color resist units include a red color resist unit with a refractive index of a third refractive index, and a refractive unit stacked on the side of the red color resist unit away from the light-emitting device layer with a refractive index of a fourth refractive index, the fourth refractive index being greater than the third refractive index.

[0023] In the above embodiments, the refractive index of the refractive unit stacked on the red light color resist unit is greater than that of the red light color resist unit, which is beneficial to reduce the attenuation of red light brightness, and thus beneficial to improve the consistency of the attenuation of the brightness of each color light in the display panel. This makes the composite light formed after the light from the wide viewing angle is superimposed closer to white light, thereby improving the display performance of the display panel.

[0024] According to some optional embodiments, the plurality of color resist units include a green color resist unit with a refractive index of the fifth refractive index, and a refractive unit stacked on the side of the green color resist unit away from the light-emitting device layer has a refractive index of the sixth refractive index, which is greater than the fifth refractive index.

[0025] In the above embodiments, the refractive index of the refractive unit stacked on the green light color resist unit is greater than that of the green light color resist unit, which is beneficial to reduce the attenuation of the brightness of green light, and thus beneficial to improve the consistency of the attenuation of the brightness of each color light in the display panel, so that the composite light formed after the light is superimposed at a wide viewing angle is closer to white light, thereby improving the display performance of the display panel.

[0026] According to some optional embodiments, along the thickness direction of the display panel, the orthographic projection of the light-emitting device onto the surface where the black matrix layer is located is situated within the second opening. This is beneficial for increasing the viewing angle range of the display panel and improving its display performance.

[0027] According to some optional embodiments, the display panel further includes a pixel defining layer located on the side of the touch metal layer near the light-emitting device layer. The pixel defining layer has a plurality of pixel openings. The light-emitting devices are located within the pixel openings.

[0028] In the display panel provided above, the light-emitting device is disposed within the pixel opening, that is, the position of the light-emitting device can be defined by the pixel defining layer, which helps to reduce the difficulty of manufacturing the light-emitting device.

[0029] According to some optional embodiments, along the thickness direction of the display panel, the projection of the pixel opening onto the surface where the black matrix layer is located is located within the second opening, which is beneficial to increase the viewing angle range of the display panel and improve the display performance of the display panel.

[0030] According to some optional embodiments, the display panel further includes an encapsulation layer. The encapsulation layer is located between the light-emitting device layer and the touch metal layer, with the side of the encapsulation layer closest to the touch metal layer being planar. In this way, the encapsulation layer can provide a supporting foundation for the formation of the touch metal layer and the color resist unit, thereby providing a flatter support structure for the color resist unit. This facilitates the formation of a flatter color resist unit, reduces or eliminates color shift in the display panel, and improves the consistency of display performance throughout the display panel.

[0031] According to some optional embodiments, the portion of the color resist unit located within the first opening is bonded to the side of the encapsulation layer closest to the touch metal layer to provide a flatter support for the color resist unit, thereby improving the flatness of the color resist unit.

[0032] According to some optional embodiments, the display panel further includes a protective layer. The protective layer is disposed on the side of the black matrix layer opposite to the light-emitting device layer. This not only improves the strength of the display panel but also facilitates planarization of the side of the black matrix layer opposite to the light-emitting device layer, thus protecting the black matrix layer. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 This is a schematic diagram of the structure of a display screen in related technologies;

[0035] Figure 2 A schematic diagram of a display panel provided for some optional embodiments of this application;

[0036] Figure 3 A schematic diagram of the light-emitting portion, the first electrode, and the pixel defining layer provided for some optional embodiments of this application;

[0037] Figure 4 A schematic diagram showing a touch metal layer disposed on an encapsulation layer for some optional embodiments of this application;

[0038] Figure 5 A schematic diagram showing a color resist unit disposed within a touch metal layer, provided for some optional embodiments of this application;

[0039] Figure 6 A schematic diagram showing that the size of the color resist unit is larger than the size of the second opening in some optional embodiments of this application;

[0040] Figure 7 A schematic diagram showing a refractive element disposed within a second opening, provided for some optional embodiments of this application;

[0041] Figure 8 A schematic diagram showing that the size of the color resist unit is smaller than the size of the first opening in some optional embodiments of this application;

[0042] Figure 9 Schematic diagram of the optical path of blue light passing through the blue light blocking unit for some optional embodiments of this application Figure 1 ;

[0043] Figure 10 Schematic diagram of the optical path of blue light passing through the blue light blocking unit for some optional embodiments of this application Figure 2 ;

[0044] Figure 11 Schematic diagram of the optical path of red light passing through the red light color blocking unit for some optional embodiments of this application Figure 1 ;

[0045] Figure 12 Schematic diagram of the optical path of red light passing through the red light color blocking unit for some optional embodiments of this application Figure 2 .

[0046] Explanation of reference numerals in the attached figures:

[0047] 10-Light-emitting device layer; 11-Light-emitting device; 20-Touch metal layer; 30-Color resist; 40-Black matrix layer; 50-Anode; 60-Thin film encapsulation layer; 70-Definition layer; 80-Light-emitting part; 90-Cathode; 100-Light-emitting device layer; 110-Light-emitting device; 111-Light-emitting part; 112-First electrode; 113-Second electrode; 200-Touch metal layer; 201-First opening; 300-Color resist unit; 310-Blue color resist unit; 320-Red color resist unit; 330-Green color resist unit; 400-Black matrix layer; 401-Second opening; 500-Refractive unit; 600-Encapsulation layer; 610-First encapsulation sublayer; 620-Second encapsulation sublayer; 630-Third encapsulation sublayer; 700-Protective layer; 800-Pixel definition layer; 810-Pixel opening.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0050] In related technologies, such as Figure 1 As shown, the OLED display includes a substrate, a light-emitting device layer 10, a thin-film encapsulation layer 60, a touch metal layer 20, and a color film layer stacked sequentially. Specifically, the light-emitting device layer 10 is first formed on the substrate. The light-emitting device layer 10 includes a defining layer 70 and a plurality of light-emitting devices 11 spaced apart from each other on the defining layer 70. (Refer to...) Figure 1 The light-emitting device 11 includes an anode 50, a cathode 90, and a light-emitting portion 80. A thin-film encapsulation layer 60 is then formed on the light-emitting side of the light-emitting device layer 10, and a color film layer is formed on the side of the thin-film encapsulation layer 60 away from the light-emitting device layer 10. The color film layer includes a black matrix layer 40 and a color resist 30.

[0051] Specifically, a black matrix layer 40 is first formed on the side of the touch metal layer 20 facing away from the thin-film encapsulation layer 60, and then a color resist 30 is formed within the opening of the black matrix layer 40. To ensure that all light passing through the color film layer passes through the color resist 30, the edge portion of the color resist 30 is at least partially overlapped with the side of the black matrix layer 40 facing away from the touch metal layer 20. However, because the edge portion of the color resist 30 overlaps with the side of the black matrix layer 40 facing away from the touch metal layer 20, and the black matrix layer 40 has a relatively large dimension in the thickness direction of the display screen, a step difference exists between the edge portion and the center portion of the color resist 30, resulting in poor flatness of the color resist 30. Specifically, as follows... Figure 1 As shown, the edge of the color resist 30 on the side away from the touch metal layer 20 protrudes in the direction away from the touch metal layer 20, and the center is recessed towards the side closer to the touch metal layer 20.

[0052] Further reference Figure 1 The diagram shows light paths a, b, and c. Light path b passes through the color resist 30 from its edge, while light path a passes through the color resist 30 from its center. Therefore, the optical path length of light path a within the color resist 30 is shorter than that of light path b. This results in a greater attenuation of light transmitted through the color resist 30 along light path b than along light path a. Consequently, color shift exists in OLED displays in related technologies.

[0053] To address the aforementioned technical problems, this application provides a display panel. The display panel includes a light-emitting device layer, a touch metal layer stacked on the light-emitting side of the light-emitting device layer, and multiple color resist units. The light-emitting device layer includes multiple light-emitting devices. The touch metal layer has multiple first openings, each corresponding to one light-emitting device. Each light-emitting device corresponds to one color resist unit, and at least a portion of the color resist unit is disposed within a first opening. By placing the color resist unit on the touch metal layer, the thinness of the touch metal layer is reduced, minimizing its impact on the flatness of the color resist unit. This reduces the step difference between the edge and center portions of the color resist unit, improving the uniformity of its thickness. Essentially, the color resist unit can be formed on a flatter structure, further enhancing the uniformity of its thickness. This display panel improves the consistency of the optical path of light transmitted through the color resist unit within the unit, reducing or eliminating color shift in the display panel. Therefore, this display panel effectively solves the problem of severe color shift in display panels.

[0054] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The following will be combined with... Figures 2 to 12 The embodiments of this application will be described below.

[0055] This application provides a display panel. (Refer to...) Figure 2 The display panel includes a light-emitting device layer 100, a touch metal layer 200, and multiple color resist units 300. The light-emitting device layer 100 is a basic structural component. For example, the light-emitting device layer 100 is used to emit light for displaying the image.

[0056] In some alternative embodiments, the light-emitting device layer 100 includes a plurality of light-emitting devices 110. Exemplarily, the plurality of light-emitting devices 110 are spaced apart.

[0057] In some optional embodiments, the display panel includes multiple pixel regions arranged in an array to form a display area of ​​the display panel. Each pixel region includes multiple sub-pixel regions. For example, a light-emitting device 110 is positioned opposite a sub-pixel region to provide a light source to the corresponding sub-pixel region.

[0058] In some optional embodiments, the plurality of light-emitting devices 110 in the light-emitting device layer 100 have various different types of light-emitting devices 110, and each type of light-emitting device 110 emits light of the same color. For example, the light-emitting device layer 100 includes light-emitting devices 110 that emit red light, light-emitting devices 110 that emit green light, and light-emitting devices 110 that emit blue light. Specifically, the number and / or arrangement of various light-emitting devices 110 can be set according to display needs. Therefore, this embodiment does not limit the type, number, or arrangement of the light-emitting devices 110 in the light-emitting device layer 100.

[0059] In some alternative embodiments, one light-emitting device 110 is opposite to one color resist unit 300. For example, there is a one-to-one correspondence between the light-emitting device 110 and the color resist unit 300. Alternatively, adjacent light-emitting devices 110 emitting the same color may share the same color resist unit 300.

[0060] In the display panel provided in the above embodiments, the color resist unit 300 can be used to filter the light emitted by the corresponding light-emitting device 110. Different color resist units 300 can be configured as needed, so that the light emitted from the corresponding area of ​​each color resist unit 300 is of a certain type. For example, a color resist unit 300 that only allows red light to pass through can be configured so that the light emitted from the corresponding area of ​​that color resist unit 300 is red light.

[0061] Reference Figure 2 and Figure 4 In some optional embodiments, the touch metal layer 200 can be used to realize human-computer interaction. In some optional embodiments, the touch metal layer 200 is disposed on the light-emitting side of the light-emitting device layer 100. Exemplarily, the display panel includes a display surface. The light-emitting side of the light-emitting device layer 100 can be the side of the light-emitting device layer 100 closer to the display surface.

[0062] Reference Figure 4 The touch metal layer 200 has a plurality of first openings 201. For example, the first opening 201 extends through the touch metal layer 200 along its thickness direction. The thickness direction of the touch metal layer 200 is the direction in which the touch metal layer 200 and the light-emitting device layer 100 are stacked. For example, the thickness direction of the touch metal layer 200 can be... Figure 2 The direction indicated by the y-axis.

[0063] Reference Figure 2 In some optional embodiments, a first opening 201 is opposite to a light-emitting device 110. Exemplarily, light emitted by the light-emitting device 110 can pass through the touch metal layer 200 through the first opening 201. Therefore, having a first opening 201 opposite to a light-emitting device 110 helps reduce the impact of the touch metal layer 200 on the light-emitting device 110. In some optional embodiments, the first opening 201 corresponds one-to-one with the light-emitting device 110.

[0064] In some alternative embodiments, each light-emitting device 110 corresponds to a color filter unit 300. At least a portion of the color filter unit 300 is disposed within the first opening 201. In this way, light emitted by the light-emitting device 110 can pass through the color filter unit 300. Exemplarily, the color filter unit 300 is a CF (color filter).

[0065] In some alternative embodiments, the color resist unit 300 is located within the first opening 201, and the side of the color resist unit 300 away from the light-emitting device layer 100 is flush with the side of the touch metal layer 200 away from the light-emitting device layer 100. This is beneficial for achieving flattening of the side of the touch metal layer 200 away from the light-emitting device layer 100.

[0066] In some alternative embodiments, the side of the color resist unit 300 facing away from the light-emitting device layer 100 protrudes from the side of the touch metal layer 200 facing away from the light-emitting device layer 100. In a further alternative embodiment, a planar material is provided on the side of the touch metal layer 200 facing away from the light-emitting device layer 100, so that the planar material on this side can be flush with the side of the color resist unit 300 facing away from the light-emitting device layer 100, achieving planarization. In alternative embodiments, the planarizing material can be, but is not limited to, TPU (Thermoplastic Polyurethane).

[0067] In some optional embodiments, the side of the color resist unit 300 facing away from the light-emitting device layer 100 is recessed into the side of the touch metal layer 200 facing away from the light-emitting device layer 100. In a further optional embodiment, a flat material is provided on the side of the color resist unit 300 facing away from the light-emitting device layer 100, so that the flat material on the side of the color resist unit 300 facing away from the light-emitting device layer 100 can be flush with the side of the touch metal layer 200 facing away from the light-emitting device layer 100, thereby achieving planarization.

[0068] According to some alternative embodiments, at least a portion of the color resist unit 300 covers the edge of the first opening 201.

[0069] In the above embodiment, the color resist unit 300 is disposed within the first opening 201, that is, the color resist unit 300 is disposed within the touch metal layer 200. Since the thickness of the touch metal layer 200 is relatively smaller than the thickness of the black matrix layer 400, even if the edge portion of the color resist unit 300 covers the edge portion of the first opening 201, the difference between the thickness of the edge portion and the thickness of the center portion of the color resist unit 300 will not be too large. Therefore, the display panel provided in the above embodiment can form the color resist unit 300 on a flatter structure, which is beneficial for forming a flatter color resist unit 300 and improving the consistency of the thickness direction of each position of the color resist unit 300. The thickness direction of the color resist unit 300 is the stacking direction of the touch metal layer 200 and the light-emitting device layer 100.

[0070] Therefore, this display panel is beneficial in improving the consistency of the optical path length of light passing through the color resist unit 300 from different positions within the color resist unit 300. Light experiences brightness attenuation during propagation through the color resist unit 300, and the greater the propagation distance, the greater the brightness attenuation. Therefore, the display panel provided in the above embodiment is beneficial in improving the consistency of brightness attenuation as light passes through different positions of the color resist unit 300, thus improving the color shift problem of the display panel.

[0071] In some alternative embodiments, such as Figures 6 to 8As shown, the side of the color resist unit 300 away from the light-emitting device layer 100 is flat. Along the thickness direction perpendicular to the display panel, the thickness of all parts of the color resist unit 300 is equal.

[0072] For example, the side of the color resist unit 300 away from the light-emitting device layer 100 is a first plane. The side of the color resist unit 300 closer to the light-emitting device layer 100 is a second plane. The first plane and the second plane are parallel.

[0073] It should be noted that the side of the color resist unit 300 away from the light-emitting device layer 100 is planar, which should be understood as the side of the color resist unit 300 away from the light-emitting device layer 100 being basically planar. The thickness of all parts of the color resist unit 300 is equal everywhere, which should be understood as the thickness of all parts of the color resist unit 300 being basically equal, in order to reduce the thickness difference between different parts of the color resist unit 300.

[0074] In the above embodiments, the thickness of the color resist unit 300 is more uniform, which can prevent the formation of protrusions at the edges and recesses at the center of the color resist unit 300. In the display panel provided above, the thickness of the color resist unit 300 is consistent throughout. Therefore, it is beneficial to improve the consistency of the optical path of light passing through different positions of the color resist unit 300, thereby helping to reduce or eliminate large viewing angle color shift.

[0075] Reference Figures 6 to 8 According to some optional embodiments, along the thickness direction of the display panel, the orthographic projection of the color resist unit 300 onto the surface where the touch metal layer 200 is located lies within the first opening 201. (Refer to...) Figure 8 In some optional embodiments, the dimension of the color resist unit 300 in the plane parallel to the light-emitting device layer 100 is a first dimension d1. The dimension of the first opening 201 in the plane parallel to the light-emitting device layer 100 is a fourth dimension d4. The first dimension d1 is less than or equal to the fourth dimension d4. This prevents the color resist unit 300 from covering the touch metal layer 200, thereby preventing the touch metal layer 200 from increasing the step difference of the color resist unit 300 in the thickness direction of the display panel and improving the consistency of the thickness of the color resist unit. Therefore, this display panel is beneficial for further improving the consistency of the optical path of light passing through the color resist unit 300 from different positions within the color resist unit 300, and reducing color shift in the display panel.

[0076] In some alternative embodiments, such as Figure 2 and Figure 5 As shown, the display panel also includes a black matrix layer (BM) 400. The black matrix layer 400 is stacked on the side of the touch metal layer 200 opposite to the light-emitting device layer 100. The black matrix layer 400 has a plurality of second openings 401, one of which is opposite to a color resist unit 300.

[0077] In some optional embodiments, the black matrix layer 400 is made of a light-absorbing material. When ambient light is incident on the display panel, the black matrix layer 400 can absorb the externally incident light to reduce the intensity of ambient light reflection from the display panel and improve the display performance. Specifically, this embodiment helps prevent the appearance of external environmental reflections within the display screen and also helps prevent the intensity of ambient light from affecting the clarity of the image displayed on the display panel.

[0078] In some optional embodiments, the black matrix layer 400 is stacked on the side of the touch metal layer 200 facing away from the light-emitting device layer 100. The color resist unit 300 is disposed within the first opening 201 of the touch metal layer 200. That is, the layer structure containing the black matrix layer 400 is located on the side of the layer structure containing the color resist unit 300 facing away from the light-emitting device layer 100, which helps prevent the edge portion of the color resist unit 300 from overlapping the black matrix layer 400 and improves the flatness of the color resist unit 300.

[0079] Reference Figure 2 and Figure 5 In some optional embodiments, the orthographic projection of the color resist unit 300 onto the surface where the black matrix layer 400 is located along the thickness direction of the display panel covers the second opening 401.

[0080] For example, refer to Figure 2 In some optional embodiments, the color resist unit 300 has a first dimension d1 in the plane parallel to the light-emitting device layer 100. The opening size of the second opening 401 is a second dimension d2, and the first dimension d1 is greater than or equal to the second dimension d2.

[0081] Reference Figure 2 At least a portion of the black matrix layer 400 is stacked on the side of the color resist unit 300 facing away from the light-emitting device layer 100. In an optional embodiment, the black matrix layer 400 covers the edge portion of the color resist unit 300 facing away from the light-emitting device layer 100 along the outer peripheral direction of the color resist unit 300.

[0082] In the above embodiment, the color resist unit 300 can block the second opening 401 so that the light passing through the second opening 401 passes through the color resist unit 300 corresponding to the second opening 401, so that the light emitted from each second opening 401 is the same color light, avoiding the light emitted by the light-emitting device 110 from being emitted from the display panel without being filtered by the color resist unit 300, thereby helping to reduce or eliminate the color deviation of the display panel and improve the display performance of the display panel.

[0083] Furthermore, in the display panel provided above, the edge portion of the color resist unit 300 can be avoided from overlapping on the black matrix layer 400, improving the consistency of the thickness of the color resist unit 300. Therefore, the display panel provided by this embodiment also helps to improve the consistency of the brightness attenuation of light passing through different positions in the color resist unit 300, thereby helping to solve the problem of color shift in the display panel.

[0084] In some alternative embodiments, refer to Figure 2 , Figure 4 and Figure 5 Along the thickness direction of the display panel, the orthographic projection of the light-emitting device 110 onto the surface where the black matrix layer 400 is located lies within the second opening 401. For example, as... Figure 2 As shown, the dimension of the light-emitting device 110 in the direction perpendicular to the thickness of the light-emitting device layer 100 is the third dimension d3. The third dimension d3 is smaller than the second dimension d2.

[0085] In the display panel provided in the above embodiment, the orthographic projection of the light-emitting device 110 onto the surface of the black matrix layer 400 is located within the second opening 401. That is, the size of the light-emitting device 110 in the direction perpendicular to the thickness of the display panel is smaller than the size of the second opening 401 in the same direction. This allows some light rays with a path tilted relative to the thickness direction of the display panel to exit through the second opening 401. Therefore, the display panel provided in this embodiment is beneficial for increasing the visible range of the display panel and improving its display performance.

[0086] In some alternative embodiments, refer to Figure 2 and Figure 5 Along the light emission direction of the light-emitting device layer 100, the cross-sectional area of ​​the second opening 401, perpendicular to the thickness direction of the display panel, gradually increases. This is beneficial for increasing the viewable range of the display panel and improving its display performance. For example, the light emission direction of the light-emitting device layer 100 is... Figure 2 The direction indicated by the y-axis.

[0087] According to some optional embodiments, the display panel further includes a pixel defining layer 800. The pixel defining layer 800 is located on the side of the touch metal layer 200 near the light-emitting device layer 100. The pixel defining layer 800 has a plurality of pixel openings 810. Light-emitting devices 110 are located within the pixel openings 810. Exemplarily, one pixel opening 810 is opposite to a first opening 201. One light-emitting device 110 is located within one pixel opening 810.

[0088] In some optional embodiments, the pixel opening 810 extends through the pixel defining layer 800 along its thickness direction. The thickness direction of the pixel defining layer 800 can be the stacking direction of the light-emitting device layer 100 and the touch metal layer 200. For example, the pixel defining layer 800 is a PDL (Pixel Define Layer) structure.

[0089] In the above embodiments, the light-emitting device 110 is disposed within the pixel opening 810, thereby enabling the pixel delimiting layer 800 to divide sub-pixel regions, which is beneficial for reducing color mixing between adjacent pixels. In some optional embodiments, the pixel delimiting layer 800 is made of a light-absorbing material. When ambient light passes through the color resist unit 300, the pixel delimiting layer 800 can absorb light that is not reflected or absorbed by the light-emitting device 110, thereby reducing reflected light and improving the contrast of the displayed image on the display panel.

[0090] In some optional embodiments, along the thickness direction of the display panel, the orthographic projection of the pixel opening 810 onto the surface where the black matrix layer 400 is located lies within the second opening 401. For example, the dimension of the pixel opening 810 in the direction perpendicular to the thickness of the display panel is smaller than the dimension of the second opening 401 in the direction perpendicular to the thickness of the display panel. The thickness direction of the display panel can be... Figure 2 The direction indicated by the y-axis.

[0091] The display panel in the above embodiments can form a light channel that gradually decreases in size from the side closer to the light-emitting device layer 100 to the side farther away from the light-emitting device layer 100, thereby increasing the viewing angle range.

[0092] According to some optional embodiments, refer to Figure 2 The light-emitting device 110 further includes a light-emitting portion 111, a first electrode 112, and a second electrode 113. The light-emitting portion 111 is located between the first electrode 112 and the second electrode 113. Optionally, one of the first electrode 112 and the second electrode 113 is an anode and the other is a cathode. In some preferred embodiments, the first electrode 112 is the anode, and the second electrode 113 is the cathode.

[0093] Reference Figure 2 and Figure 3The second electrode 113 is a layer in the light-emitting device layer 100 near the touch metal layer 200. The light-emitting portion 111 is stacked on the side of the second electrode 113 away from the touch metal layer 200. The first electrode 112 is located on the side of the light-emitting portion 111 away from the second electrode 113. According to some alternative embodiments, at least a portion of the first electrode 112 is located in the pixel opening 810. Both the first electrode 112 and the second electrode 113 are connected to the light-emitting device 110 within the pixel opening 810, so that the first electrode 112 and the second electrode 113 can provide electrical energy for the light-emitting portion 111 to emit light.

[0094] According to some optional embodiments, such as Figure 2 As shown, the light-emitting device 110 includes a light-emitting portion 111, a first electrode 112 opposite to the light-emitting portion 111 in the thickness direction of the display panel, and a second electrode 113 opposite to the light-emitting portion 111 in the thickness direction of the display panel. Specifically, the dimension of the light-emitting device 110 in the direction perpendicular to the thickness of the light-emitting device layer 100 is the same as the dimension of the light-emitting portion 111 in the direction perpendicular to the thickness of the light-emitting device layer 100.

[0095] Reference Figure 1 In related technologies, some of the light emitted by the light-emitting device 11 is absorbed by the black matrix layer 40 after it shines on the black matrix layer 40. In these technologies, to accommodate different pixel ratios and considering the quality of the displayed image, the size of the openings in the defining layer 70 corresponding to different colored light-emitting devices 11 needs to be set differently. Furthermore, the outward expansion size of the openings in the black matrix layer 40 relative to the openings in the defining layer 70 is limited by the fabrication process of the black matrix layer 40, resulting in different outward expansion sizes of the openings in the black matrix layer 40 corresponding to different colored light-emitting devices 11.

[0096] In the process of developing the display panel described in this application, the inventors discovered that different opening sizes in the defining layer 70 and different opening sizes in the black matrix layer 40 result in different levels of light brightness attenuation. Therefore, in related technologies, in order to accommodate different pixel ratios and consider the quality of the displayed image, the opening sizes of the defining layer 70 corresponding to different colored light-emitting devices need to be set differently, which causes severe color shift at large viewing angles on the display screen.

[0097] In some alternative embodiments, refer to Figure 2 , Figure 7 and Figure 8The display panel also includes multiple refractive units 500. The refractive units 500 are disposed within the second opening 401. One refractive unit 500 is opposite to one color resist unit 300, and the refractive unit 500 is stacked on the side of the opposite color resist unit 300 facing away from the light-emitting device layer 100. In this way, light passing through the color resist unit 300 can directly enter the refractive unit 500 and change its light path within the refractive unit 500.

[0098] In some optional embodiments, the refractive unit 500 can be arranged in a one-to-one correspondence with the color resist unit 300, so that the light passing through each color resist unit 300 can enter the refractive unit 500 and be refracted at the junction of the refractive unit 500 and the color resist unit 300, thereby changing the direction of light propagation.

[0099] The refractive unit 500 can be used to change the path of light passing through the color filter unit 300, so that some of the light passing through the color filter unit 300 can illuminate or avoid the black matrix layer 400. (See reference...) Figure 9 and Figure 10 When the color resist unit 300 is a blue light color resist unit 310 and the refractive index of the refractive unit 500 is less than that of the blue light color resist unit 310, and some of the light transmitted through the blue light color resist unit 310 illuminates the black matrix layer 400 under the action of the refractive unit 500, the black matrix layer 400 can absorb this portion of light, thereby increasing the brightness attenuation of the light. (Refer to...) Figure 11 and Figure 12 When the color resist unit 300 is a red color resist unit 320 and the refractive index of the refractive unit 500 is greater than that of the red color resist unit 320, some light passing through the red color resist unit 320 avoids the black matrix layer 400 under the action of the refractive unit 500. Therefore, the black matrix layer 400 cannot absorb this portion of light, thereby reducing the brightness attenuation of the light. Thus, the refractive index of the refractive unit 500 corresponding to each color resist unit 300 can be set as needed to adjust the amount of brightness attenuation of the light passing through the color resist unit 300.

[0100] For example, in practical applications, the display panel provided in the above embodiments can set the refractive index of the corresponding refractive unit 500 for the color resist unit 300 of different colors, so as to improve the consistency of brightness of different colored light without changing the size of the pixel opening 810 and / or the size of the second opening 401 in the display panel, so that the light emitted by the display panel after superposition is closer to white light, and the difference between the displayed color and the actual color is reduced.

[0101] The display panel provided in the above embodiments not only helps to solve the problem of severe color bias in the display panel at large viewing angles, but also can accommodate second openings 401 and pixel openings 810 of different sizes. Therefore, the display panel provided in the above embodiments is beneficial in reducing or eliminating color bias in the display panel at large viewing angles while taking into account the pixel ratio and display image quality, thereby improving the display performance of the display panel.

[0102] In some optional embodiments, the refractive index of the refractive unit 500 corresponding to the color resist unit 300 with significant brightness attenuation is greater than the refractive index of the color resist unit 300. For example, the refractive unit 500 with a refractive index greater than that of the color resist unit 300 can be formed on the side of the color resist unit 300 facing away from the light-emitting device layer 100 by a vapor deposition process. (Refer to...) Figure 11 and Figure 12 When the refractive index of the refractive unit 500 is greater than that of the color resist unit 300, the refractive unit 500 can reduce the size of the exit angle of the emitted light, which helps to prevent the light passing through the edge of the color resist unit 300 from being absorbed by the black matrix layer 400, reduce the brightness attenuation of the light, and reduce or eliminate the large viewing angle of the display panel.

[0103] In some optional embodiments, the refractive index of the refractive unit 500 corresponding to the color resist unit 300 with less brightness attenuation is less than the refractive index of the color resist unit 300. For example, the refractive unit 500 with a refractive index less than that of the color resist unit 300 can be formed on the side of the color resist unit 300 facing away from the light-emitting device layer 100 by a vapor deposition process. (Refer to...) Figure 9 and Figure 10 When the refractive index of the refractive unit 500 is less than that of the color resist unit 300, the refractive unit 500 can increase the size of the exit angle of the emitted light, so that some of the light passing through the edge of the color resist unit 300 can be irradiated onto the black matrix layer 400 after passing through the refractive unit 500, which is beneficial to increase the brightness attenuation of the light and reduce or eliminate the large viewing angle of the display panel.

[0104] In some optional embodiments, the side of the refractive unit 500 near the light-emitting device layer 100 is bonded to the side of the corresponding color resist unit 300 away from the light-emitting device layer 100. According to some optional embodiments, during the fabrication of the refractive unit 500, a folded unit can be formed on the side of the color resist unit 300 away from the light-emitting device layer 100 by vapor deposition.

[0105] Reference Figure 2 and Figure 5In some optional embodiments, the outer peripheral wall of the refractive unit 500 is bonded to the inner sidewall of the second opening 401. For example, during the fabrication of the display panel, a black matrix layer 400 can be formed first on the side of the touch metal layer 200 opposite to the light-emitting device layer 100. Then, the refractive unit 500 is formed within the second opening 401 of the black matrix layer 400 using a vapor deposition process, so that the material forming the refractive unit 500 can fill the second opening 401.

[0106] In the above implementation, the outer peripheral wall of the refractive unit 500 is in contact with the second opening 401, which helps to ensure that light emitted from the area opposite to the second opening 401 in the color resist unit 300 can enter the refractive unit 500, thereby improving the consistency of display performance in all parts of the display panel.

[0107] According to some optional embodiments, along the light emission direction of the light-emitting device layer 100, the cross-sectional area of ​​the second opening 401 perpendicular to the thickness direction of the display panel gradually increases. Similarly, the cross-sectional area of ​​the refractive unit 500 perpendicular to the thickness direction of the display panel gradually increases. The light emission direction of the light-emitting device layer 100 can be... Figure 2 The direction indicated by the y-axis.

[0108] Reference Figure 9 and Figure 10 In some optional embodiments, the plurality of color resist units 300 includes a blue color resist unit 310, that is, the color resist units 300 in the display panel include a blue color resist unit 310. Exemplarily, the blue color resist unit 310 only allows blue light to pass through. In some optional embodiments, the refractive index of the blue color resist unit 310 is a first refractive index. The refractive index of the refractive unit 500 stacked on the side of the blue color resist unit 310 facing away from the light-emitting device layer 100 is a second refractive index. The second refractive index is less than the first refractive index.

[0109] In the above embodiment, the second refractive index is less than the first refractive index. That is, when light enters the refractive unit 500 stacked on the side of the blue light resist unit 310 away from the light-emitting device layer 100 from the blue light resist unit 310, the incident angle is less than the exit angle. In this way, some light near the edge of the blue light resist unit 310 will be irradiated onto the black matrix layer 400 under the action of the refractive unit 500, thereby increasing the attenuation of blue light and helping to solve the problem of blue tint in the display panel at large viewing angles.

[0110] In some optional embodiments, the refractive index of the blue light resist unit 310 is 1.55 to 1.65. Preferably, the refractive index of the blue light resist unit 310 is 1.6. In some optional embodiments, the refractive index of the refractive unit 500 stacked on the side of the blue light resist unit 310 facing away from the light-emitting device layer 100 is 1.4 to 1.55. Preferably, the refractive index of the refractive unit 500 stacked on the side of the blue light resist unit 310 facing away from the light-emitting device layer 100 is 1.5. In this way, not only can the color shift phenomenon of the display panel at a large viewing angle be improved by increasing the attenuation of blue light brightness, but also the transmittance of blue light by the display panel can be ensured, which is beneficial to maintaining low power consumption of the display panel.

[0111] Reference Figure 11 and Figure 12 In some optional embodiments, the plurality of color resist units 300 includes a red color resist unit 320, that is, the color resist units 300 in the display panel include a red color resist unit 320. Exemplarily, the red color resist unit 320 only allows red light to pass through. In some optional embodiments, the refractive index of the red color resist unit 320 is a third refractive index. The refractive index of the refractive unit 500 stacked on the side of the red color resist unit 320 facing away from the light-emitting device layer 100 is a fourth refractive index. The fourth refractive index is greater than the third refractive index.

[0112] In the above embodiment, the fourth refractive index is greater than the third refractive index. That is, when light enters the refractive unit 500 stacked on the side of the red light resist unit 320 away from the light-emitting device layer 100 from the red light resist unit 320, the incident angle is greater than the exit angle. In this way, some light near the edge of the red light resist unit 320 will avoid the black matrix layer 400 under the action of the refractive unit 500, thereby reducing the attenuation of red light and helping to solve the problem of blue tint in the display panel at large viewing angles.

[0113] In some optional embodiments, the refractive index of the red light color resist unit 320 is 1.55 to 1.65. Preferably, the refractive index of the red light color resist unit 320 is 1.6. In some optional embodiments, the refractive index of the refractive unit 500 stacked on the side of the red light color resist unit 320 facing away from the light-emitting device layer 100 is 1.7 to 1.9. Preferably, the refractive index of the refractive unit 500 stacked on the side of the red light color resist unit 320 facing away from the light-emitting device layer 100 is 1.8. In this way, not only can the color shift phenomenon of the display panel at a large viewing angle be improved by reducing the attenuation of red light brightness, but the transmittance of red light of the display panel can also be improved, which is beneficial to reducing the power consumption of the display panel.

[0114] In some optional embodiments, among the plurality of color resist units 300, a green color resist unit 330 is included, that is, the color resist units 300 in the display panel include a green color resist unit 330. Exemplarily, the green color resist unit 330 only allows green light to pass through. In some optional embodiments, the refractive index of the green color resist unit 330 is the fifth refractive index. The refractive index of the refractive unit 500 stacked on the side of the green color resist unit 330 facing away from the light-emitting device layer 100 is the sixth refractive index. The sixth refractive index is greater than the fifth refractive index.

[0115] In the above embodiment, the sixth refractive index is greater than the fifth refractive index. That is, when light enters the refractive unit 500 stacked on the side of the green color resist unit 330 away from the light-emitting device layer 100 from the green color resist unit 330, the incident angle is greater than the exit angle. In this way, some light near the edge of the green color resist unit 330 will avoid the black matrix layer 400 under the action of the refractive unit 500, thereby reducing the attenuation of green light and helping to solve the problem of blue tint in the display panel at large viewing angles.

[0116] In some optional embodiments, the refractive index of the green light resist unit 330 is 1.55 to 1.65. Preferably, the refractive index of the green light resist unit 330 is 1.6. In some optional embodiments, the refractive index of the refractive unit 500 stacked on the side of the green light resist unit 330 facing away from the light-emitting device layer 100 is 1.7 to 1.9. This not only reduces the attenuation of green light brightness, thus improving the color shift phenomenon of the display panel at large viewing angles, but also increases the transmittance of green light in the display panel, which is beneficial for reducing the power consumption of the display panel.

[0117] In some optional embodiments, the color resist unit 300 in the display panel includes a blue color resist unit 310, a red color resist unit 320, and a green color resist unit 330. Exemplarily, the number and arrangement of the blue color resist unit 310, red color resist unit 320, and green color resist unit 330 can be set as needed. Therefore, this embodiment does not limit the number of blue color resist units 310, red color resist units 320, and green color resist units 330, nor their arrangement.

[0118] In some optional embodiments, the display panel further includes an encapsulation layer 600. The encapsulation layer 600 is located between the light-emitting device layer 100 and the touch metal layer 200. Exemplarily, the encapsulation layer 600 is stacked on the light-emitting device layer 100 to seal the light-emitting device 110, preventing water and oxygen from reacting with the light-emitting device 110, thereby protecting the light-emitting device 110. In some optional embodiments, the surface of the encapsulation layer 600 near the touch metal layer 200 is planar. Exemplarily, the touch metal layer 200 and the encapsulation layer 600 are in contact and bonded. In some preferred embodiments, the portion of the color resist unit 300 located within the first opening 201 is in contact and bonded to the side of the encapsulation layer 600 near the touch metal layer 200.

[0119] For example, during the fabrication of a display panel, a planarization process can be used to make the side of the encapsulation layer 600 facing away from the light-emitting device layer 100 flatter, so as to provide a flatter support for the color resist unit 300, thereby improving the flatness of the color resist unit 300.

[0120] Reference Figure 2 In some optional embodiments, the encapsulation layer 600 includes a first encapsulation sublayer 610, a second encapsulation sublayer 620, and a third encapsulation sublayer 630. For example, the first encapsulation sublayer 610 and the second encapsulation sublayer 620 are stacked sequentially.

[0121] In some optional embodiments, the first encapsulation sublayer 610 and the third encapsulation sublayer 630 are inorganic encapsulation layers. The second encapsulation sublayer 620 is an organic encapsulation layer. Exemplarily, the materials of the first encapsulation sublayer 610 and the third encapsulation sublayer 630 can be, but are not limited to, SiNx (polysilicon nitride) / SiONx (polysilicon oxynitride) / SiOx (polysilicon oxide). In some optional embodiments, the second encapsulation sublayer 620 can be an ijp (Inkjet Printing) layer. Exemplarily, the materials of the second encapsulation sublayer 620 can be, but are not limited to, acrylic / epoxy / silicone.

[0122] In some alternative embodiments, such as Figure 2 As shown, the display panel also includes a protective layer 700. Exemplarily, the protective layer 700 is disposed on the side of the black matrix layer 400 facing away from the light-emitting device layer 100, thereby enhancing the strength of the display panel. In some alternative embodiments, the surface of the protective layer 700 away from the black matrix layer 400 is planar, thereby achieving planarization of the side of the display panel facing away from the black matrix layer 400.

[0123] According to some alternative embodiments, at least a portion of the protective layer 700 is embedded within the second opening 401. Exemplarily, the protective layer 700 is an over-coating (OC) layer disposed on the side of the black matrix layer 400 opposite to the touch metal layer 200.

[0124] In some optional embodiments, the protective layer 700 is made of organic adhesive. For example, the protective layer 700 can be, but is not limited to, TPU material.

[0125] According to some optional embodiments, the display panel provided in this application can be used to manufacture a display screen. In some optional embodiments, the light-emitting device 110 described in this application can be, but is not limited to, an OLED light-emitting device. For example, the display panel described in this application can be used to manufacture, but is not limited to, an OLED screen.

[0126] In some alternative embodiments, the display panel further includes a substrate. Exemplarily, the substrate is stacked on the side of the pixel defining layer 800 opposite to the touch metal layer 200. Specifically, a mounting base can be provided for the pixel defining layer 800 and the first electrode 112.

[0127] This application provides a display device, which may include the display panel described above. The display device may be a mobile or fixed terminal with a display panel, such as a mobile phone, television, tablet computer, laptop computer, Ultra-Mobile Personal Computer (UMPC), Personal Digital Assistant (PDA), or virtual reality device.

[0128] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0129] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A display panel, characterized in that, include: The light-emitting device layer includes multiple light-emitting devices; A touch metal layer is disposed on the light-emitting side of the light-emitting device layer and has a plurality of first openings. The first openings penetrate the touch metal layer along the thickness direction of the touch metal layer, and one first opening corresponds to one light-emitting device. as well as, Multiple color resist units, each of the light-emitting devices corresponds to one color resist unit, and at least a portion of the color resist unit is disposed within the first opening; The side of the color resist unit away from the light-emitting device layer is a plane, and the thickness of each part of the color resist unit is equal along the thickness direction perpendicular to the display panel. Along the thickness direction of the display panel, the orthographic projection of the color resist unit on the surface where the touch metal layer is located is located within the first opening.

2. The display panel according to claim 1, characterized in that, It also includes a black matrix layer stacked on the side of the touch metal layer away from the light-emitting device layer, the black matrix layer having a plurality of second openings that expose at least a portion of the color resist unit.

3. The display panel according to claim 2, characterized in that, One of the second openings is opposite to one of the color resist units.

4. The display panel according to claim 2 or 3, characterized in that, Along the thickness direction of the display panel, the orthographic projection of the color resist unit on the surface where the black matrix layer is located covers the second opening.

5. The display panel according to claim 2 or 3, characterized in that, It also includes multiple refractive units, which are disposed within the second opening and are stacked on the side of the opposite color resist unit away from the light-emitting device layer.

6. The display panel according to claim 5, characterized in that, The outer peripheral wall of the refractive unit is fitted and connected to the inner sidewall of the second opening.

7. The display panel according to claim 6, characterized in that, Along the light emission direction of the light-emitting device layer, the size of the second opening, which is perpendicular to the thickness direction of the display panel, gradually increases; the cross-sectional area of ​​the refractive unit in the thickness direction of the display panel gradually increases.

8. The display panel according to any one of claims 6-7, characterized in that, The plurality of color resist units include a blue color resist unit, the blue color resist unit having a first refractive index, and the refractive unit stacked on the side of the blue color resist unit away from the light-emitting device layer having a second refractive index, the second refractive index being less than the first refractive index; And / or, the plurality of color resist units include a red color resist unit, the red color resist unit having a third refractive index, and the refractive unit stacked on the side of the red color resist unit away from the light-emitting device layer having a fourth refractive index, the fourth refractive index being greater than the third refractive index; And / or, the plurality of color resist units include a green color resist unit, the green color resist unit having a refractive index of the fifth refractive index, and the refractive unit stacked on the side of the green color resist unit facing away from the light-emitting device layer having a refractive index of the sixth refractive index, the sixth refractive index being greater than the fifth refractive index.

9. The display panel according to claim 2 or 3, characterized in that, Along the thickness direction of the display panel, the orthographic projection of the light-emitting device on the surface where the black matrix layer is located is located within the second opening.

10. The display panel according to claim 2 or 3, characterized in that, It also includes a pixel defining layer, which is located on the side of the touch metal layer near the light-emitting device layer; The pixel defining layer has multiple pixel openings, and the light-emitting device is located within the pixel openings; Along the thickness direction of the display panel, the orthographic projection of the pixel opening onto the surface where the black matrix layer is located is within the second opening.

11. The display panel according to claim 1, characterized in that, It also includes an encapsulation layer, which is located between the light-emitting device layer and the touch metal layer, and the side of the encapsulation layer closest to the touch metal layer is planar.

12. The display panel according to claim 11, characterized in that, The portion of the color resist unit located within the first opening is attached to the side of the encapsulation layer closest to the touch metal layer.

13. The display panel according to claim 2 or 3, characterized in that, It also includes a protective layer, which is disposed on the side of the black matrix layer opposite to the light-emitting device layer.

Images