Display panel and display device

Abstract

The present application discloses a display panel and a display device, wherein the display panel includes a light-emitting area and a light-shielding area, wherein the light-shielding area is arranged between two light-emitting areas of different colors, wherein the light-emitting area includes a light-emitting unit, a color-resistance layer located on one side of the light-emitting unit, and an encapsulation layer located between the light-emitting unit and the color-resistance layer; the light-shielding area includes an auxiliary light-emitting unit, a light-shielding layer located on one side of the auxiliary light-emitting unit, and an encapsulation layer located between the auxiliary light-emitting unit and the light-shielding layer; a reflective layer is also arranged on a side of the light-shielding layer close to the auxiliary light-emitting unit, for reflecting the light of the auxiliary light-emitting unit; a functional pixel definition layer is arranged between the light-emitting unit and the auxiliary light-emitting unit, and the functional pixel definition layer is arranged as a hemispherical concave surface on a side facing the reflective layer, for reflecting the light of the auxiliary light-emitting unit to the light-emitting area. Through the above structure, the display effect is improved.

Description

Technical Field

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

[0002] With the advancement of display technology, flat panel displays have become the mainstream of applications due to their light and thin features. Among various flat panel displays, organic light emitting diode displays (OLED) and active matrix organic light emitting diode (AMOLED) displays are the most widely used.

[0003] In an OLED light-emitting device, light emitted from the light-emitting layer passes through each layer of the OLED device and is transmitted to the outside. The light is refracted from one dielectric material to another, resulting in color mixing in the pixels. The conventional method is to set a light-shielding layer to block it, but it also loses a certain amount of brightness and reduces the display effect of the display panel.

[0004] TIR is an optical effect in which light incident on an interface with a high-low refractive index contrast is completely reflected back into the high-refractive index medium rather than being refracted through the interface. TIR can be used to control light to achieve an ideal display mode and improve product performance. Summary of the invention

[0005] The main technical problem solved by the present application is to provide a display panel and a display device, which reflect light from a non-display area to a display area through a micro-structured pixel definition layer to increase the display brightness of the display area.

[0006] To solve the above problems, the present application provides a display panel, comprising a light-emitting area and a light-shielding area, wherein the light-shielding area is arranged between two light-emitting areas of different colors, wherein the light-emitting area comprises a light-emitting unit, a color-resistance layer located on one side of the light-emitting unit, and an encapsulation layer located between the light-emitting unit and the color-resistance layer; the light-shielding area comprises an auxiliary light-emitting unit, a light-shielding layer located on one side of the auxiliary light-emitting unit, and an encapsulation layer located between the auxiliary light-emitting unit and the light-shielding layer; wherein a reflective layer is further arranged on a side of the light-shielding layer close to the auxiliary light-emitting unit, for reflecting the light of the auxiliary light-emitting unit; a functional pixel definition layer is arranged between the light-emitting unit and the auxiliary light-emitting unit, and the functional pixel definition layer is arranged as a hemispherical concave surface on a side facing the reflective layer, for reflecting the light of the auxiliary light-emitting unit to the light-emitting area.

[0007] The refractive index of the encapsulation layer is greater than the refractive index of the functional pixel definition layer, so that the light is totally reflected at the boundary between the encapsulation layer and the functional pixel definition layer.

[0008] Wherein, the light-emitting unit and the auxiliary light-emitting unit both include an anode layer, a cathode layer and an organic light-emitting layer located between the anode layer and the cathode layer; wherein the cathode layer of the light-emitting unit is connected to the cathode layer of the auxiliary light-emitting unit, and the anode layer and the organic light-emitting layer of the light-emitting unit are separated from the anode layer and the organic light-emitting layer of the auxiliary light-emitting unit by the functional pixel definition layer.

[0009] Wherein, the auxiliary light-emitting unit includes a first auxiliary light-emitting unit and a second auxiliary light-emitting unit, the first auxiliary light-emitting unit and the light-emitting unit adjacent to the first auxiliary light-emitting unit have the same color of the organic light-emitting layer, the second auxiliary light-emitting unit and the light-emitting unit connected to the second auxiliary light-emitting unit have the same color of the organic light-emitting layer; the first auxiliary light-emitting unit and the second auxiliary light-emitting unit are separated by a pixel definition layer.

[0010] Wherein, a side surface of the reflective layer facing the auxiliary light-emitting unit is configured as a plurality of concave surfaces.

[0011] Wherein, the reflective layer is arranged to be a plane at a junction corresponding to the first auxiliary light-emitting unit and the second auxiliary light-emitting unit.

[0012] Among them, the reflection layer includes a first total internal reflection layer and a second total internal reflection layer, the first total internal reflection layer is arranged corresponding to the first auxiliary light-emitting unit, and the side facing the first auxiliary light-emitting unit is a concave surface; the second total internal reflection layer is arranged corresponding to the second auxiliary light-emitting unit, and the side facing the second auxiliary light-emitting unit is a concave surface.

[0013] A first reflection layer is further arranged between the first total internal reflection layer and the color resistance layer of the adjacent light-emitting area, and a second reflection layer is arranged between the second total internal reflection layer and the color resistance layer of the adjacent light-emitting area; the first reflection layer and the second reflection layer are arranged as inclined surfaces on a side facing the light-emitting area.

[0014] Wherein, a third reflection layer is further arranged between the first total internal reflection layer and the second total internal reflection layer, connecting the first total internal reflection layer and the second total internal reflection layer.

[0015] The present application also provides a display device, which includes the display panel described in any of the above embodiments.

[0016] The beneficial effect of the present application is that the reflective layer reflects the light of the auxiliary light-emitting unit onto the hemispherical concave surface of the functional pixel definition layer, and the hemispherical concave surface further reflects the light to the light-emitting area. After multiple reflections on the hemispherical concave surface, the light can be reflected almost vertically to the exit surface of the light-emitting area, thereby greatly enhancing the display brightness of the light-emitting area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a display panel of the present application;

[0019] Figure 2 A schematic diagram of multiple reflections of light in the functional pixel definition layer of the present application;

[0020] Figure 3 This is a schematic structural diagram of a first specific embodiment of a display panel of the present application;

[0021] Figure 4 It is a structural schematic diagram of a display panel in the prior art;

[0022] Figure 5 This is a schematic structural diagram of a second specific embodiment of a display panel of the present application;

[0023] Figure 6 This is a schematic structural diagram of a third specific embodiment of a display panel of the present application;

[0024] Figure 7 This is a schematic structural diagram of a fourth specific embodiment of a display panel of the present application;

[0025] Figure 8 This is a schematic structural diagram of a fifth specific embodiment of a display panel of the present application;

[0026] Fig. 9 It is a structural schematic diagram of the sixth specific embodiment of the display panel of the present application.

[0027] 1 light-emitting area; 2 light-shielding area; 11 light-emitting unit; 21 auxiliary light-emitting unit; 12 color resistance layer; 22 light-shielding layer; F encapsulation layer; 23 reflection layer; 101 functional pixel definition layer; PDL pixel definition layer; A anode layer; C cathode layer; E organic light-emitting layer; 211 first auxiliary light-emitting unit; 212 second auxiliary light-emitting unit; 111 first light-emitting unit; 112 second light-emitting unit; 231 first total internal reflection layer; 232 second total internal reflection layer; 233 first reflection layer; 234 second reflection layer; 235 third reflection layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said", and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless otherwise clearly indicated above, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0030] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] It should be understood that the terms "include", "comprises" or any other variations used herein are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0032] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The presence of the phrase at each location in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] This application provides a display panel. Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of an embodiment of a display panel of the present application. Figure 1 As shown, the display panel includes a light emitting area 1 and a light shielding area 2 .

[0035] The display panel includes multiple light-emitting areas 1, including a blue light-emitting area, a green light-emitting area and a red light-emitting area, and a color light-emitting unit is formed by the blue light-emitting area, the green light-emitting area and the red light-emitting area to display a color picture. The light-emitting area 1 is also a display area.

[0036] A shading area 2 is provided between two adjacent light-emitting areas 1 of different colors. Since the two light-emitting areas 1 of different colors emit light of different colors, the interference between the light rays that experience different total internal reflection (TIR) ​​trajectories in the microstructure produces rainbow structural colors. Therefore, in order to eliminate the interference between the two adjacent light-emitting areas 1 of different colors, a shading layer is provided between them to absorb the rainbow colors produced by the interference, thereby improving the display effect. Among them, the shading area 2 is also an anti-peeping area.

[0037] The light-emitting area 1 includes a light-emitting unit 11, a color-resistance layer 12 located on one side of the light-emitting unit 11, and an encapsulation layer F located between the light-emitting unit 11 and the color-resistance layer 12. The light-shielding area 2 includes an auxiliary light-emitting unit 21, a light-shielding layer 22 located on one side of the auxiliary light-emitting unit 21, and an encapsulation layer F located between the auxiliary light-emitting unit 21 and the light-shielding layer 22. Specifically, the light-emitting unit 11 and the auxiliary light-emitting unit 21 are located on the same layer, and the light-shielding layer 22 and the color-resistance layer 12 are located on the same layer, which is not limited here. The light emitted by two adjacent light-emitting areas 1 of different colors will be refracted and reflected in the encapsulation layer F, so the excess rainbow color is absorbed by the light-shielding layer 22. The light-shielding layer 22 is a black matrix. In a specific embodiment, the color-resistance layer 12 of the light-emitting area 1 can extend in the direction of the light-shielding layer 22 to increase the light-emitting surface.

[0038] In this embodiment, a reflective layer 23 is further provided on a side of the light shielding layer 22 close to the auxiliary light emitting unit 21, and the reflective layer 23 is used to reflect the light emitted by the auxiliary light emitting unit 21. A functional pixel definition layer 101 is provided between the light emitting unit 11 and the auxiliary light emitting unit 21, and the functional pixel definition layer 101 is provided with a hemispherical concave surface on a side facing the reflective layer 23, and is used to reflect the light of the auxiliary light emitting unit 21 to the light emitting area 1. Specifically, the direction of the light is as follows: Figure 1 As shown by the middle arrow, the light emitted by the auxiliary light-emitting unit 21 is reflected by the reflective layer 23 to the concave surface of the functional pixel definition layer 101, and then reflected by the concave surface to the light-emitting area 1, thereby brightening the light-emitting area 1 through the auxiliary light-emitting unit 21 and improving the display brightness of the light-emitting area 1.

[0039] Specifically, the direction of light in the functional pixel definition layer 101 is as follows: Figure 2 As shown, Figure 2 This is a schematic diagram of multiple reflections of light in the functional pixel definition layer of this application. Figure 2 As shown, the light is reflected multiple times on the hemispherical concave surface of the functional pixel definition layer 101 and is transmitted to the light-emitting area 1 to brighten the light-emitting area 1.

[0040] In this embodiment, the refractive index of the encapsulation layer F is greater than the refractive index of the functional pixel definition layer 101, so that the light is totally reflected at the junction of the encapsulation layer F and the functional pixel definition layer 101, thereby transmitting the brightness of the auxiliary light-emitting unit 21 to the light-emitting area 1 to achieve a brightening effect.

[0041] The light-emitting unit 11 and the auxiliary light-emitting unit 21 each include an anode layer A and a cathode layer C, and an organic light-emitting layer E located between the anode layer A and the cathode layer C. The cathode layer C of the light-emitting unit 11 and the cathode layer C of the auxiliary light-emitting unit 21 are connected, and the anode layer A and the organic light-emitting layer E of the light-emitting unit 11 are separated from the anode layer A and the organic light-emitting layer E of the auxiliary light-emitting unit 21 by the functional pixel definition layer 101. More specifically, the cathode layer C covers the entire surface of the organic light-emitting layer E and the functional pixel definition layer 101, and is integrally formed so that the cathodes are interconnected.

[0042] In this embodiment, the color of the organic light-emitting layer E of the auxiliary light-emitting unit 21 is the same as the color of the organic light-emitting layer E of the light-emitting unit 11 that is most adjacent to it. Figure 3 , Figure 3 Schematic diagram of the structure of the first specific embodiment of the display panel of the present application. Figure 3 As shown, the auxiliary light-emitting unit 21 includes a first auxiliary light-emitting unit 211 and a second auxiliary light-emitting unit 212. The first auxiliary light-emitting unit 211 is adjacent to the first light-emitting unit 111 of the light-emitting area 1, and the second auxiliary light-emitting unit 212 is adjacent to the second light-emitting unit 112 of the light-emitting area 1. The organic light-emitting layer E of the first auxiliary light-emitting unit 211 has the same color as the organic light-emitting layer E of the first light-emitting unit 111, so that the first auxiliary light-emitting unit 211 emits light of the same color as the first light-emitting unit 111, so that the light of the first auxiliary light-emitting unit 211 brightens the light-emitting area 1 corresponding to the first light-emitting unit 111. The organic light-emitting layer E of the second auxiliary light-emitting unit 212 has the same color as the organic light-emitting layer E of the second light-emitting unit 112, so that the second auxiliary light-emitting unit 212 brightens the light-emitting area 1 corresponding to the second light-emitting unit 112.

[0043] It should be noted that the light emitted by the second auxiliary light-emitting unit 212 will be transmitted to the light-emitting area 1 corresponding to the first light-emitting unit 111 after multiple reflections, but will be absorbed by the color-resistance layer 12 above the first light-emitting unit 111, and will not interfere with the display of the light-emitting area 1. Among them, the color-resistance layer 12 is composed of a polarizer. The color-resistance layer 12 corresponding to the first light-emitting unit 111 is set corresponding to the color of its organic light-emitting layer E. Specifically, when the first light-emitting unit 111 is a red light-emitting unit, its organic light-emitting layer E is a red organic layer, and the color-resistance layer 12 above it is a red color-resistance layer, which only allows red light to pass through, and other colors of light (such as green and blue light) will not pass through. Therefore, the second auxiliary light-emitting unit 212 will not have a brightening effect on the first light-emitting unit 111.

[0044] In other embodiments, the auxiliary light-emitting unit 21 may also be other color light-emitting units, which may emit color light including red, green and blue, so as to brighten the first light-emitting unit 111 and the second light-emitting unit 112 adjacent thereto, respectively. In other specific embodiments, the first auxiliary light-emitting unit 211 may be adjacent to the second light-emitting unit 112, and the second auxiliary light-emitting unit 212 may be adjacent to the first light-emitting unit 111, which is not limited here. In this specific embodiment, a color light source (at least including a color light source of red and green, red and blue, and green and blue) is provided by the first auxiliary light-emitting unit 211 and the second auxiliary light-emitting unit 212, which is not limited here. Among them, the first auxiliary light-emitting unit 211 and the second auxiliary light-emitting unit 212 have the same color as the organic light-emitting layer of the light-emitting units of the two adjacent light-emitting areas 1, that is, at least two colors of light are provided to provide the same color of light to the two adjacent light-emitting areas 1, respectively.

[0045] In this specific embodiment, a pixel definition layer PDL is further disposed between the first auxiliary light emitting unit 211 and the second auxiliary light emitting unit 212 . The pixel definition layer PDL is a conventional structure and is used to separate two auxiliary light emitting units of different colors.

[0046] It should be noted that in the prior art, two adjacent light emitting units 11 are separated by a conventional pixel definition layer PDL. Figure 4 , Figure 4 FIG. 1 is a schematic diagram of the structure of a display panel in the prior art. Figure 4As shown, a pixel definition layer PDL is disposed between each two adjacent light-emitting units 11, and a color blocking layer 12 and a light shielding layer 22 are disposed on the side of the two adjacent light-emitting units 11 away from the substrate. The light shielding layer 22 is disposed between the two adjacent color blocking layers 12, corresponding to the pixel definition layer PDL, and the color mixing interference between the two adjacent light-emitting units 11 is eliminated by the light shielding layer 22. More specifically, the two adjacent light-emitting units 11 are respectively a first light-emitting unit 111 and a second light-emitting unit 112, wherein the light shielding layer 22 is larger than the area of ​​the pixel definition layer PDL, so as to cover part of the first light-emitting unit 111 and part of the second light-emitting unit 112, respectively. In the present application, a functional pixel definition layer 101 is provided at a position corresponding to the junction of the light shielding layer 22 and the color blocking layer 12 corresponding to the first light emitting unit 111, so as to transmit the light emitted by the part of the first light emitting unit 111 covered by the light shielding layer 22 to the light emitting area 1 of the first light emitting unit 111, thereby increasing the emitted light (light corresponding to the color) of the light emitting area 1 corresponding to the first light emitting unit 111, and further improving the display brightness of the light emitting area 1 corresponding to the first light emitting unit 111. Another functional pixel definition layer 101 is provided at a position corresponding to the junction of the light shielding layer 22 and the color blocking layer 12 corresponding to the second light emitting unit 112, so as to transmit the light emitted by the part of the second light emitting unit 112 covered by the light shielding layer 22 to the light emitting area 1 of the second light emitting unit 112, thereby improving the display brightness of the light emitting area 1 corresponding to the second light emitting unit 112.

[0047] In this embodiment, the light emitted by the light-emitting units that are blocked in the shading area 2 is reflected and transmitted to the light-emitting area 1 through the functional pixel definition layer 101 and the reflective layer 23 to increase the display brightness of the light-emitting area 1, thereby utilizing the unused light-emitting units.

[0048] In this embodiment, the refractive index of the encapsulation layer F is greater than the refractive index of the functional pixel definition layer 101, so that the light is totally reflected at the interface between the encapsulation layer F and the functional pixel definition layer 101. In other embodiments, a reflective coating may also be applied on the surface of the functional pixel definition layer 101, which is not limited here.

[0049] The reflective layer 23 may be a plane, covering a surface of the light shielding layer 22 facing the auxiliary light emitting unit 21 .

[0050] It can also be set to a concave surface. For details, please refer to Figure 5 , Figure 5 FIG. 2 is a schematic diagram of the structure of the second specific embodiment of the display panel of the present application. Figure 5As shown, the side of the reflective layer 23 facing the auxiliary light-emitting unit 21 is provided with a plurality of inner concave surfaces. Specifically, the inner concave surface is a miniature hemispherical concave surface, similar to the concave surface shape of the functional pixel definition layer 101, so as to transmit the light emitted by the auxiliary light-emitting unit 21 to the light-emitting area 1 after multiple reflections.

[0051] In a further embodiment, the reflective layer 23 is set as a plane at the junction position corresponding to the first auxiliary light-emitting unit 211 and the second auxiliary light-emitting unit 212. For details, please refer to Figure 6 , Figure 6 Schematic diagram of the structure of the third specific embodiment of the display panel of the present application. Figure 6 As shown, the reflective layer 23 is set as a plane at a position corresponding to the pixel definition layer PDL, so as to reflect the mixed color light at the junction into the encapsulation layer F, so as to be repeatedly used.

[0052] For further information, please refer to Figure 7 , Figure 7 Schematic diagram of the structure of the fourth specific embodiment of the display panel of the present application. Figure 7 As shown, the reflective layer 23 includes a first total internal reflection layer 231 and a second total internal reflection layer 232. The first total internal reflection layer 231 is provided corresponding to the first auxiliary light-emitting unit 211, and the side facing the first auxiliary light-emitting unit 211 is a concave surface. The second total internal reflection layer 232 is provided corresponding to the second auxiliary light-emitting unit 212, and the side facing the second auxiliary light-emitting unit 212 is a concave surface. The light of the first auxiliary light-emitting unit 211 is transmitted to the light-emitting area 1 through the first total internal reflection layer 231, and the light of the second auxiliary light-emitting unit 212 is transmitted to another light-emitting area 1 through the second total internal reflection layer 232. In this embodiment, since the first total internal reflection layer 231 and the second total internal reflection layer 232 are concave surfaces, the transmission path of the light is changed, so that the light is almost vertically incident on the functional pixel definition layer 101, and then the light is almost vertically transmitted to the light-emitting area 1 through the functional pixel definition layer 101, so as to brighten the light-emitting area 1. Specifically, the light transmission is as follows Figure 2 As shown, the light is reflected multiple times in the inner concave surface, thereby emitting nearly vertical light. In this embodiment, the first total internal reflection layer 231 and the second total internal reflection layer 232 can be arranged alternately, and the two total internal reflection layers can also be arranged alternately with the adjacent color resist layer 12. Among them, the light passing through the non-total internal reflection layer (that is, the interval area) will be absorbed by the light shielding layer 22.

[0053] For further information, see Figure 8 , Figure 8 Schematic diagram of the structure of the fifth specific embodiment of the display panel of the present application. Figure 8 As shown, Figure 8 for Figure 7A further embodiment. A first reflection layer 233 is disposed between the first total internal reflection layer 231 and the color resist layer 12 of the adjacent light-emitting area 1, that is, the first reflection layer 233 is disposed between the first total internal reflection layer 231 and the color resist layer 12 on the left. A second reflection layer 234 is disposed between the second total internal reflection layer 232 and the color resist layer 12 of the adjacent light-emitting area 1, that is, the second reflection layer 234 is disposed between the second total internal reflection layer 232 and the color resist layer 12 of the adjacent light-emitting area 1, that is, the second reflection layer 234 is disposed between the second total internal reflection layer 232 and the color resist layer 12 on the right. Among them, the first reflection layer 233 and the second reflection layer 234 are inclined surfaces on the side facing the light-emitting area 1, that is, they are inclined toward the light-emitting area 1, so that the light of the edge auxiliary light-emitting unit can be directly reflected to the light-emitting area 1, which is not limited here.

[0054] For further information, see Fig. 9 , Fig. 9 Schematic diagram of the structure of the sixth specific embodiment of the display panel of the present application. Fig. 9 As shown, Fig. 9 for Figure 8 A further embodiment of the present invention. A third reflection layer 235 is further provided at the gap between the first total internal reflection layer 231 and the second total internal reflection layer 232, and the mixed color light is reflected into the encapsulation layer F through the third reflection layer 235 for recycling. The third reflection layer 235 is a plane on the side facing the auxiliary light-emitting unit. The third reflection layer 235 connects the first total internal reflection layer 231 and the second total internal reflection layer 232, and forms a reflection surface corresponding to the auxiliary light-emitting unit with the first reflection layer 233 and the second reflection layer 234, so as to utilize all the light in the auxiliary light-emitting unit.

[0055] The present application also provides a display device, the display device includes a substrate, and the display panel described in any of the above embodiments is arranged on the substrate. For a specific structural diagram, please refer to the structural diagram of any of the above embodiments. Specifically, a plurality of light-emitting units are arranged on the substrate, a shading area is arranged between every two light-emitting units, and a functional pixel definition layer is arranged at the intersection position of the light-emitting unit corresponding to the shading area, and the light of the shading area is reflected to the light-emitting area through the functional pixel definition layer, thereby improving the display brightness of the light-emitting area.

[0056] The beneficial effects of the present application are as follows: the reflective layer reflects the light of the auxiliary light-emitting unit onto the hemispherical concave surface of the functional pixel definition layer, and the hemispherical concave surface further reflects the light to the light-emitting area. After multiple reflections on the hemispherical concave surface, the light can be reflected almost vertically to the exit surface of the light-emitting area, thereby greatly enhancing the display brightness of the light-emitting area. Compared with the traditional shading area (anti-peeping area) design, the area of ​​the shading layer above the pixel definition layer is reduced, and the color blocking layer is increased along the shading area direction, thereby converting the unused light of the light-emitting unit in the anti-peeping area into the light of the normal light-emitting unit, and refracting the light of the light-emitting unit in the shading area, thereby increasing some auxiliary pixel units, thereby increasing the light-emitting range and increasing the edge brightness of the normal display. Under the same environment and conditions, the black state brightness remains unchanged, and the white state brightness is increased, which improves the product contrast to a certain extent. At the same time, the increase of the color blocking layer in the light-emitting area will improve the edge color mixing phenomenon of the display panel.

[0057] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, comprising a light-emitting area and a light-shielding area, wherein the light-shielding area is arranged between two light-emitting areas of different colors, characterized in that: The light-emitting area includes a light-emitting unit, a color-resistance layer located on one side of the light-emitting unit, and an encapsulation layer located between the light-emitting unit and the color-resistance layer; the light-shielding area includes an auxiliary light-emitting unit, a light-shielding layer located on one side of the auxiliary light-emitting unit, and an encapsulation layer located between the auxiliary light-emitting unit and the light-shielding layer; Wherein, a reflective layer is further provided on a side of the light-shielding layer close to the auxiliary light-emitting unit, for reflecting the light of the auxiliary light-emitting unit; A functional pixel definition layer is arranged between the light-emitting unit and the auxiliary light-emitting unit. The functional pixel definition layer is arranged to be a hemispherical concave surface on a side facing the reflective layer, for reflecting the light of the auxiliary light-emitting unit reflected by the reflective layer to the light-emitting area.

2. The display panel according to claim 1, characterized in that: The refractive index of the encapsulation layer is greater than the refractive index of the functional pixel definition layer, so that the light is totally reflected at the junction of the encapsulation layer and the functional pixel definition layer.

3. The display panel according to claim 1, characterized in that: The light-emitting unit and the auxiliary light-emitting unit both include an anode layer, a cathode layer, and an organic light-emitting layer located between the anode layer and the cathode layer; wherein the cathode layer of the light-emitting unit is connected to the cathode layer of the auxiliary light-emitting unit, and the anode layer and the organic light-emitting layer of the light-emitting unit are separated from the anode layer and the organic light-emitting layer of the auxiliary light-emitting unit by the functional pixel definition layer.

4. The display panel according to claim 3, characterized in that: The auxiliary light-emitting unit includes a first auxiliary light-emitting unit and a second auxiliary light-emitting unit, the first auxiliary light-emitting unit and the light-emitting unit adjacent to the first auxiliary light-emitting unit have the same color of organic light-emitting layer, the second auxiliary light-emitting unit and the light-emitting unit connected to the second auxiliary light-emitting unit have the same color of organic light-emitting layer; the first auxiliary light-emitting unit and the second auxiliary light-emitting unit are separated by a pixel definition layer.

5. The display panel according to claim 1, characterized in that: A side surface of the reflective layer facing the auxiliary light-emitting unit is configured as a plurality of concave surfaces.

6. The display panel according to claim 4, characterized in that: The reflective layer is arranged to be a plane at a junction corresponding to the first auxiliary light-emitting unit and the second auxiliary light-emitting unit.

7. The display panel according to claim 4, characterized in that: The reflective layer includes a first total internal reflection layer and a second total internal reflection layer, wherein the first total internal reflection layer is arranged corresponding to the first auxiliary light-emitting unit, and a side facing the first auxiliary light-emitting unit is a concave surface; the second total internal reflection layer is arranged corresponding to the second auxiliary light-emitting unit, and a side facing the second auxiliary light-emitting unit is a concave surface.

8. The display panel according to claim 7, characterized in that: A first reflection layer is further arranged between the first total internal reflection layer and the color resistance layer of the adjacent light-emitting area, and a second reflection layer is arranged between the second total internal reflection layer and the color resistance layer of the adjacent light-emitting area; the first reflection layer and the second reflection layer are arranged as inclined surfaces on a side facing the light-emitting area.

9. The display panel according to claim 8, characterized in that: A third reflection layer is further disposed between the first total internal reflection layer and the second total internal reflection layer, connecting the first total internal reflection layer and the second total internal reflection layer.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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