Display panel, display device and electronic equipment

Abstract

The present invention discloses a display panel, a display device and an electronic device, and relates to the field of display technology. The main purpose is to solve the problem that the existing design can only have anti-peeping performance in the left and right viewing angles of the display screen, but not have comprehensive anti-peeping performance. The main technical scheme of the present invention is: a display panel, which includes an array substrate, a first electrode layer, a light-emitting layer, a second electrode layer and a cover plate which are stacked in sequence, and the second electrode layer is made of a transparent or translucent material; a plurality of shading strips are arranged on the inner surface and / or the outer surface of the cover plate; wherein some of the shading strips are arranged along the width direction of the cover plate, and the remaining shading strips are arranged along the length direction of the cover plate, and the adjacent shading strips in the same direction are arranged at intervals, so as to block the outgoing light in the length direction and width direction of the cover plate; the shading strips can play an anti-peeping role in the length and width directions of the cover plate, that is, in the left and right directions and front and back directions of the actual product parallel to the screen.

Description

Technical Field

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

[0002] Nowadays, society has more and more requirements for information confidentiality, so there will be anti-peeping design display screens produced. Anti-peeping design means that the information displayed on the screen cannot be seen or obtained at a wide viewing angle; OLED display devices have the advantages of self-luminescence and wide viewing angle, so OLED anti-peeping design is more difficult. In existing designs, a shutter-type anti-peeping film is added to the vertical screen surface of the screen, making the display screen anti-peeping in the left and right viewing directions.

[0003] However, the existing design as described above can only be anti-peeping in the left and right viewing angles of the display screen, but not in the up and down viewing angles perpendicular to the screen and the front and back viewing angles parallel to the screen. Summary of the invention

[0004] In view of this, embodiments of the present invention provide a display panel, a display device and an electronic device, the main purpose of which is to solve the problem that the existing design can only provide anti-peeping performance in the left and right viewing angles of the display screen, but not provide comprehensive anti-peeping performance.

[0005] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0006] On the one hand, an embodiment of the present invention provides a display panel, which includes an array substrate, a first electrode layer, a light-emitting layer, a second electrode layer and a cover plate stacked in sequence, wherein the second electrode layer is made of a transparent or semi-transparent material; wherein:

[0007] A plurality of shading strips are provided on the inner surface and / or outer surface of the cover plate;

[0008] Among them, some of the shading strips are arranged along the width direction of the cover plate, and the remaining shading strips are arranged along the length direction of the cover plate, and the adjacent shading strips in the same direction are arranged at intervals to block the outgoing light in the length direction and width direction of the cover plate.

[0009] The purpose of the present invention and the solution to its technical problems can also be further achieved by adopting the following technical measures:

[0010] Optionally, in the aforementioned display panel, the light-emitting layer includes a plurality of pixel units;

[0011] The inner surface and / or outer surface of the cover plate is divided into a plurality of sub-areas corresponding to the plurality of pixel units, and a plurality of the shading strips are arranged in each of the sub-areas.

[0012] Optionally, in the aforementioned display panel, each of the pixel units includes three sub-pixels, and the multiple shading strips corresponding to each of the sub-pixels are arranged to be spaced apart along the width / length direction of the cover plate, and the setting directions of the shading strips corresponding to the three sub-pixels in each of the pixel units are not exactly the same.

[0013] Optionally, in the aforementioned display panel, a plurality of through holes are provided on the first electrode layer or the second electrode layer, so as to reduce the area of ​​the first electrode layer or the second electrode layer.

[0014] Optionally, in the aforementioned display panel, the first electrode layer or the second electrode layer is divided into a plurality of first sub-electrodes or a plurality of second sub-electrodes corresponding to the plurality of sub-pixels;

[0015] A plurality of strip-shaped through holes are provided on the first sub-electrode or the second sub-electrode at intervals along the width / length direction of the cover plate, and the orthographic projection of the strip-shaped through holes toward the array substrate falls within the orthographic projection of the shading strip toward the array substrate.

[0016] Optionally, in the aforementioned display panel, the distances between adjacent shading strips in the same direction are equal;

[0017] The tangent value of the maximum viewing angle of the display panel is the ratio of the distance from the side of the shading strip away from the light-emitting layer to the second electrode layer to the distance between the adjacent shading strips in the same direction.

[0018] Optionally, in the aforementioned display panel, the shading strip comprises at least one sub-shading strip; or

[0019] The shading strip includes a plurality of sub-shading strips, and a raised layer is arranged between adjacent sub-shading strips, and the raised layer is made of a transparent material.

[0020] Optionally, in the aforementioned display panel, a distance between adjacent shading strips along the width / length direction of the cover plate is greater than a dimension of the shading strip in the width / length direction.

[0021] On the other hand, an embodiment of the present application provides a display device, which includes the above-mentioned display panel.

[0022] On the other hand, an embodiment of the present application provides an electronic device, which includes the above-mentioned display device.

[0023] By means of the above technical scheme, the display panel, display device and electronic device of the present invention have at least the following advantages: In order to solve the problem that the existing design can only be anti-peeping in the left and right viewing angles of the display screen, but not fully anti-peeping, in the display panel provided by the present invention, a plurality of the shading strips are arranged on the cover plate, so that some of the shading strips are arranged at intervals along the width direction of the cover plate, and the remaining shading strips are arranged along the length direction of the cover plate, so as to block the outgoing light in the length and width directions of the cover plate, that is, in the left and right and front and back directions of the actual product parallel to the screen, so as to play an anti-peeping role in the left and right and front and back directions parallel to the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a cover plate in a display panel provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of a first electrode layer or a second electrode layer in a display panel provided by an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of the cover plate and the first electrode layer or the second electrode layer in a display panel provided by an embodiment of the present invention;

[0027] Figure 4 Another structural schematic diagram of the cooperation between a cover plate and a first electrode layer or a second electrode layer in a display panel provided by an embodiment of the present invention;

[0028] Figure 5 A schematic structural diagram of the cooperation between a cover plate and a first electrode layer or a second electrode layer in a display panel provided by an embodiment of the present invention;

[0029] Figure 6 for Figure 3 Schematic diagram of a partial cross section along DD;

[0030] Figure 7 A schematic diagram of the maximum viewing angle of a display panel provided by an embodiment of the present invention;

[0031] In the figure: an array substrate 1, a first electrode layer 2, a first sub-electrode 21, a strip-shaped through hole 22, a light-emitting layer 3, a second electrode layer 4, a cover plate 5, a shading strip 6, a shading strip 61, and a raised layer 62. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation, structure, features and effects of a display panel, display device and electronic device proposed according to the present invention in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0033] The technical solution of the embodiment of the present invention is to solve the above technical problems, and the overall idea is as follows:

[0034] Example 1

[0035] Reference Figure 1 and attached Figure 6 The display panel provided by the embodiment of the present invention comprises an array substrate 1, a first electrode layer 2, a light-emitting layer 3, a second electrode layer 4 and a cover plate 5 which are stacked in sequence, wherein the second electrode layer 4 is made of a transparent or translucent material; a plurality of shading strips 6 are provided on the inner surface and / or the outer surface of the cover plate 5;

[0036] Among them, some of the shading strips 6 are arranged along the width direction of the cover plate 5, and the remaining shading strips 6 are arranged along the length direction of the cover plate 5, and the adjacent shading strips 6 in the same direction are arranged at intervals, which are used to block the outgoing light in the length direction and width direction of the cover plate 5.

[0037] Specifically, in order to solve the problem that the existing design can only provide anti-peeping performance in the left and right viewing angles of the display screen, but not provide comprehensive anti-peeping performance, the display panel provided in this embodiment is provided with a plurality of shading strips 6 arranged on the cover plate 5 at intervals along its width and length, so that the display panel has shading strips that block the outgoing light in both the length and width directions, so that the complete display content cannot be seen on both sides of the length direction and both sides of the width direction of the display panel, thereby achieving a more comprehensive anti-peeping effect.

[0038] Among them, the array substrate 1 is a substrate with a complete switch tube or a TFT transistor layer; the first electrode layer 2 and the second electrode layer 4 are the anode layer and the cathode layer respectively, and the cathode or the anode can be on top. In the subsequent description of this scheme, the first electrode layer 2 will be used as the anode for the embodiment; the light-emitting layer 3 is the light-emitting layer of the EL device in the OLED display device. In this embodiment, the pixel defining layer is also classified into the light-emitting layer 3 and represented together; the cover plate 5 is a packaging cover plate; the above contents can be easily understood and implemented by technical personnel in this field, and can be obtained based on the prior art, so no further details will be given here; wherein, the second electrode layer 4, that is, the cathode layer, is set to a transparent or translucent material, which means that the present application scheme is aimed at an OLED display device with top emission light.

[0039] Wherein, the shading strip 6 is made of black opaque material, so as to block the outgoing light; in this embodiment, part of the shading strip 6 is arranged along the length direction of the cover plate 5 and is arranged at intervals, and the remaining part of the shading strip 6 is arranged along the width direction of the cover plate 5 and is arranged at intervals, wherein the position of setting the shading strip 6 can be arbitrarily selected, as long as it is ensured that the shading strip 6 is provided in both the length direction and the width direction of the cover plate 5, for example: refer to the attached Figure 1 The cover plate 5 can be divided into A, B, and C areas. The shading strips 6 on the A area are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), and the shading strips 6 on the B and C areas are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure); it can also be that the shading strips 6 on A and B are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), and the shading strips 6 on the C area are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure); it can also be that the shading strips 6 on the A area are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure), and the shading strips 6 on the B and C areas are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), and the shading strips 6 in the B and C areas extend to the A area, forming a grid-like cross arrangement.

[0040] The shading strip 6 can be arranged on the inner surface of the cover plate 5 or on the outer surface of the cover plate 5, as long as it is arranged in the above manner to block the outgoing light on both sides of the length direction and the width direction of the display panel.

[0041] Furthermore, in order to ensure that the shading strips 6 do not excessively affect the brightness of the display panel, in this embodiment, the distance between adjacent shading strips 6 along the width / length direction of the cover plate 5 is set to be greater than the size of the shading strips 6 in the width / length direction; specifically, refer to the attached Figure 6 And attached Figure 7The distance between the adjacent left and right shading strips 6 in the figure is greater than the size of the shading strips 6 in the left and right directions in the figure, so that in the direction perpendicular to the display panel, the area blocked by the shading strips 6 is smaller than the exposed area, so as to ensure the brightness of the display panel.

[0042] According to the above, in the display panel provided by the present invention, a plurality of shading strips 6 are arranged on the cover plate 5, so that some of the shading strips 6 are arranged at intervals along the width direction of the cover plate 5, and the remaining shading strips 6 are arranged along the length direction of the cover plate 5, so as to block the outgoing light in the length and width directions of the cover plate 5, that is, the left and right directions and the front and back directions of the actual product parallel to the screen, and thus play a peeping prevention role in the left and right directions and the front and back directions parallel to the screen.

[0043] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B, which is specifically understood as: A and B may be included at the same time, A may exist alone, or B may exist alone, and any of the above three situations may exist.

[0044] Furthermore, in a display panel provided by an embodiment of the present invention, in a specific implementation, the light-emitting layer 3 includes a plurality of pixel units;

[0045] The inner surface and / or outer surface of the cover plate 5 is divided into a plurality of sub-areas corresponding to the plurality of pixel units, and a plurality of shading strips 6 are disposed in each of the sub-areas.

[0046] Specifically, in order to accurately block the outgoing light of the displayed content and play a precise anti-peeping role, in this embodiment, the shading strip 6 is set corresponding to the pixel unit; the light-emitting layer 3 includes a plurality of pixel units, which is well known to those skilled in the art and will not be explained in detail here; because the pixel unit is the key to the display of the picture, and then in this embodiment, the shading strip 6 is set at the position corresponding to the pixel unit on the cover plate 5, and the shading strip 6 corresponding to each pixel unit can be along the width direction of the cover plate 5 and along the length direction of the cover plate 5, or the shading strip 6 in one pixel unit is along the length direction of the cover plate 5, and the shading strip 6 in another pixel unit is along the width direction of the cover plate 5; for example: refer to the attached Figure 1 , the A, B, and C areas of the cover plate 5 correspond to three pixel units respectively, and the shading strips 6 thereon can be arranged in a manner as shown in the figure, that is, the shading strips 6 on the A area are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), and the shading strips 6 on the B and C areas are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure), or each of the A, B, and C areas can have shading strips 6 arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure) and along the length direction of the cover plate 5 (i.e., the left-right direction in the figure).

[0047] Furthermore, in a display panel provided by an embodiment of the present invention, in a specific implementation, each of the pixel units includes three sub-pixels, and the multiple shading strips 6 corresponding to each of the sub-pixels are arranged to be spaced apart along the width / length direction of the cover plate 5, and the setting directions of the shading strips 6 corresponding to the three sub-pixels in each of the pixel units are not exactly the same.

[0048] Specifically, in order to accurately block the outgoing light of the displayed content and play a precise anti-peeping role, in this embodiment, the shading strip 6 is set corresponding to each sub-pixel, and each pixel unit includes three sub-pixels representing three primary colors, namely, a sub-pixel R representing red, a sub-pixel G representing green, and a sub-pixel B representing blue. In this embodiment, the shading strip 6 is set corresponding to each sub-pixel, and the outgoing light of each sub-pixel in the length or width direction of the cover plate 5 is blocked, thereby ensuring that one or two of the three primary colors are missing in the length or width direction of the cover plate, so that the picture is seriously distorted, thereby playing a role of anti-peeping; for example: refer to the attached Figure 1 , the A, B, and C regions of the cover plate 5 correspond to the three sub-pixels G, R, and B in a pixel unit, respectively, and the shading strips 6 thereon can be arranged as shown in the figure: the shading strips 6 on the A region (i.e., the green sub-pixel) are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), so that the green color is distorted on both sides along the length direction of the display panel, and the intact display image cannot be seen, and the peek is prevented in the length direction; in contrast, the shading strips 6 on the B and C regions (i.e., the red and blue sub-pixels) are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure). ) is set, the red and blue colors on both sides along the width direction of the display panel are distorted, and the intact display image cannot be seen, and anti-peeping is performed in the width direction; of course, the setting direction of the shading strip 6 on the corresponding area of ​​each sub-pixel A, B, and C is not fixed, as long as the three areas have the shading strip 6 set along the width direction of the cover plate 5 and along the length of the cover plate 5 at the same time, the setting method of the shading strip 6 corresponding to the three sub-pixels in each pixel unit is not exactly the same; wherein, the setting method of the corresponding shading strip 6 in each pixel unit can be the same or different, refer to the attached Figure 1The same situation is that the shading strips 6 at the positions corresponding to the green sub-pixel A areas in each pixel unit are arranged along the length direction of the cover plate 5 (i.e., the left-right direction in the figure), and the shading strips 6 at the positions corresponding to the red and blue sub-pixels B and C areas in each pixel unit are arranged along the width direction of the cover plate 5 (i.e., the up-down direction in the figure); the different situation is that the arrangement of the shading strips 6 at the positions corresponding to the three sub-pixels in each pixel unit can be adjusted at will, as long as the positions corresponding to the three sub-pixels have the shading strips 6 arranged along the width direction and along the length of the cover plate 5 at the same time; preferably, the arrangement of the corresponding shading strips 6 in each pixel unit is set to be the same, which can simplify the manufacturing process.

[0049] Further, see Attachment Figure 2 In a display panel provided by an embodiment of the present invention, in a specific implementation, a through hole is provided on the first electrode layer 2 or the second electrode layer 4 to reduce the area of ​​the first electrode layer 2 or the second electrode layer 4.

[0050] Specifically, since OLED is a current-type device, the greater the current, the greater the carrier density injected into the device, and the greater the exciton density generated; when the OLED is at high brightness, the number of excitons generated increases, which increases the exciton density in the light-emitting layer, and the excitons collide with each other, causing exciton quenching, resulting in reduced luminous efficiency. Therefore, OLED has a more serious problem of rapid reduction in luminous efficiency under high brightness, that is, the efficiency roll-off problem; therefore, in order to improve the efficiency roll-off problem, in this embodiment, the plurality of through holes are provided on the first electrode layer 2 or the second electrode layer 4 to reduce the area of ​​the first electrode layer 2 or the second electrode layer 4, so that excitons can be generated at the position of the light-emitting layer 3 corresponding to the first electrode 2 or the second electrode 4, and the generated excitons can be extended to the position of the light-emitting layer 3 corresponding to the through holes, so as to increase the exciton diffusion transmission area, reduce the density of excitons in the light-emitting layer 3, and reduce the quenching probability of excitons, thereby improving the efficiency roll-off problem of the display panel.

[0051] Among them, it is preferred to set the through hole on the first electrode layer 2 (anode), because in the existing light-emitting layer 3, due to the characteristics of the organic material, the ability of hole injection and transmission is greater than the ability of electron injection and transmission, so that the number of holes generated in the light-emitting layer 3 is much greater than the number of electrons, and the light-emitting efficiency is low; in order to improve the light-emitting efficiency of the display panel, in this embodiment, a through hole is set on the first electrode layer 2 (anode), so that the area of ​​the anode is reduced, thereby reducing the number of holes generated by the light-emitting layer 3 and the light-emitting layer 3, which plays a role in balancing the number of holes and electrons, thereby improving the light-emitting efficiency of the display panel; of course, it can be understood that: if the material of the light-emitting layer 3 in the future can achieve that its electron injection and transmission ability is greater than its hole input and transmission ability, then the through hole can be set on the second electrode layer 4, i.e., the cathode layer, which can also play the above-mentioned role of balancing the number of holes and electrons.

[0052] Further, see Attachment Figure 2 and attached Figure 3 , a display panel provided by an embodiment of the present invention, in a specific implementation, the first electrode layer 2 or the second electrode layer 4 is divided into a plurality of first sub-electrodes 21 or a plurality of second sub-electrodes (arranged in the same manner as the first sub-electrodes 21) corresponding to the plurality of sub-pixels;

[0053] Among them, a plurality of strip-shaped through holes 22 are arranged on the first sub-electrode 21 or the second sub-electrode at intervals along the width / length direction of the cover plate 5, and the orthographic projection of the strip-shaped through holes 22 toward the array substrate 1 falls within the orthographic projection of the shading strip 6 toward the array substrate 1.

[0054] Specifically, in order to cooperate with the setting of the cover plate 5 to ensure the light output rate of the display panel and effectively improve the problem of efficiency roll-off, in this embodiment, the first electrode layer 2 or the second electrode layer 4 is cooperated with the shading strip 6 to be set as a hollow electrode with a strip-shaped through hole 22; in this embodiment, the first electrode layer 2, that is, the anode layer is set as a hollow electrode for detailed description. If it is necessary to set the second electrode layer 4 as a hollow electrode, the setting method is the same as that of the first electrode layer 2.

[0055] The first electrode layer 2 is divided into a plurality of first sub-electrodes 21 corresponding to a plurality of sub-pixels. Figure 2As shown in the figure, the three first sub-electrodes 21 correspond to the three sub-pixels R, G, and B in a pixel unit respectively; in order to cooperate with the setting method of the shading strip 6 at the position corresponding to each sub-pixel on the cover plate 5 to achieve the effect of efficient light output, in this embodiment, the strip through holes 21 on the three first sub-electrodes 21 are arranged to be spaced apart along the width direction of the cover plate 5, and also to be spaced apart along the length direction of the cover plate 5, so that the strip through holes 21 can correspond to the position of the shading strip 6, so that the position of the first electrode layer 2 where the strip through holes 22 are not arranged can perform normal light-emitting display, and the position of the strip through holes 22 corresponds to the shading strip 6 not emitting light, thereby not affecting the brightness of the display panel and can achieve the purpose of reducing the area of ​​the first electrode layer 2; for example: refer to the above content and attached Figure 3 , when the shading strip 6 is arranged at intervals along the length direction of the cover plate 5 (i.e., the left-right direction in the figure) at the position corresponding to the sub-pixel G representing the green color, the strip-shaped through hole 22 on the first sub-electrode 21 corresponding to the green sub-pixel G is arranged at intervals along the length direction of the cover plate 5 (i.e., the left-right direction in the figure) corresponding to the shading strip 6. At this time, the green color is distorted on both sides along the length direction of the display panel, and the intact display image cannot be seen, and anti-peeping is performed in the length direction; Conversely, when the shading strip 6 is arranged at intervals along the width direction of the cover plate 5 (i.e., the up-down direction in the figure) at the position corresponding to the red R and blue sub-pixels B, the strip-shaped through hole 22 on the first sub-electrode 21 corresponding to the red sub-pixel R and the blue sub-pixel B is arranged at intervals along the width direction of the cover plate 5 (i.e., the up-down direction in the figure) corresponding to the shading strip 6. At this time, the red and blue colors are distorted on both sides along the width direction of the display panel, and the intact display image cannot be seen, and anti-peeping is performed in the width direction; Of course, it can be understood that: refer to the attached Figure 3 Preferably, the shading strip 6 not only shields the strip-shaped through hole 22, but also needs to shield the edge of the first sub-electrode 21 corresponding to each sub-pixel along the length / width of the cover plate 5, thereby ensuring the strictness of anti-peeping.

[0056] According to the different arrangement modes of the light shielding strips 6, the arrangement modes of the strip-shaped through holes 22 on the first sub-electrode 21 also have various forms, for example: Figure 4 and attached Figure 5 The form of, with reference to the above content, can be easily implemented by those skilled in the art, and will not be elaborated here.

[0057] Further, see Attachment Figure 7 , a display device provided by an embodiment of the present invention, in a specific implementation, the distances between adjacent shading strips 6 in the same direction are equal;

[0058] The tangent value of the maximum viewing angle of the display panel is the ratio of the distance from the side of the shading strip 6 away from the light-emitting layer 3 to the second electrode layer 4 to the distance between the adjacent shading strips in the same direction.

[0059] Specifically, the maximum viewing angle of the display panel provided in this embodiment depends on the distance from the side of the shading strip 6 away from the light-emitting layer 3 to the second electrode layer 4 and the distance between the adjacent shading strips in the same direction, wherein, when the distance between the adjacent shading strips 6 is fixed, the greater the distance from the side of the shading strip 6 away from the light-emitting layer 3 to the second electrode layer 4, the smaller the viewing angle of the display panel provided in this embodiment, and the better the anti-peeping effect; for example: refer to the attached Figure 7 , which is a cross-sectional schematic diagram of the display panel corresponding to a first sub-electrode 21. When the distance between adjacent shading strips 6 is fixed at 10um, the distance from the side of the shading strip 6 away from the light-emitting layer 3 to the second electrode layer 4 includes the thickness of the shading strip 6 and the distance from the shading strip 6 to the second electrode layer 4. At this time, the thickness of the shading strip 6 is set to 6um, and the distance from the shading strip 6 to the second electrode layer 4 is set to 4um. At this time, the tangent value of the maximum viewing angle of the display panel provided in this embodiment is 10:10, and the maximum viewing angle is 45 degrees. That is to say, the display content can only be seen when the line of sight angle in the width or length direction of the display panel is less than or equal to 45 degrees, otherwise it cannot be seen. It can be understood that in order to improve the anti-peeping effect, the maximum viewing angle of the display panel provided in this embodiment can be adjusted by adjusting the above data, thereby adjusting the anti-peeping effect.

[0060] Further, see Attachment Figure 6 and attached Figure 7 , an embodiment of the present invention provides a display panel, in a specific implementation, the shading strip 6 includes at least one sub-shading strip 61; or

[0061] The shading strip 6 includes a plurality of sub-shading strips 61 , and a raised layer 62 is disposed between adjacent sub-shading strips 61 , and the raised layer 62 is made of a transparent material.

[0062] Specifically, in order to achieve a certain thickness of the shading strip 6 to cooperate with adjusting the maximum viewing angle of the display panel, the shading strip 6 in this embodiment can be set to include at least one sub-shading strip 61, and the sub-shading strip 61 itself must have a preset thickness; however, for the sub-shading strip 61, the strip structure with a large thickness has great difficulty in the manufacturing process. Therefore, in order to reduce the difficulty of the process, in this embodiment, the purpose of increasing the thickness is achieved by using a plurality of sub-shading strips 61 spaced by the increased layer 62. The increased layer 62 is a transparent material of the same flat layer, wherein the flat layer is a structure well known to those skilled in the art. Since the technical solution of the present application does not improve or innovate this structure, it will not be elaborated here.

[0063] Example 2

[0064] Furthermore, an embodiment of the present application provides a display device, which includes the display panel.

[0065] The display panel is the display panel described in Example 1. For its specific structure and anti-peeping principle, please refer to the detailed description of the above-mentioned Example 1, and no further details will be given here.

[0066] Example 3

[0067] Furthermore, an embodiment of the present application provides an electronic device, which includes the display device.

[0068] The display device is the display device described in Example 2. For its specific structure and anti-peeping principle, please refer to the detailed description of the above-mentioned Examples 1 and 2, and no further details will be given here.

[0069] It should be noted that the above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Therefore, the above embodiments can be combined with each other. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A display panel, comprising an array substrate, a first electrode layer, a light-emitting layer, a second electrode layer and a cover plate which are stacked in sequence, wherein the second electrode layer is made of a transparent or semi-transparent material; characterized in that: The light-emitting layer includes a plurality of pixel units; The inner surface and / or outer surface of the cover plate is divided into a plurality of sub-areas corresponding to the plurality of pixel units, and a plurality of the shading strips are provided in each of the sub-areas; Among them, some of the shading strips are arranged along the width direction of the cover plate, and the remaining shading strips are arranged along the length direction of the cover plate, and the adjacent shading strips in the same direction are arranged at intervals to block the outgoing light in the length direction and width direction of the cover plate.

2. The display panel according to claim 1, characterized in that: Each of the pixel units includes three sub-pixels, and the plurality of shading strips are arranged to be spaced apart along the width / length direction of the cover plate corresponding to each of the sub-pixels, and the shading strips corresponding to the three sub-pixels in each of the pixel units are arranged in different directions.

3. The display panel according to claim 2, characterized in that: A plurality of through holes are provided on the first electrode layer or the second electrode layer, so as to reduce the area of ​​the first electrode layer or the second electrode layer.

4. The display panel according to claim 3, characterized in that: The first electrode layer or the second electrode layer is divided into a plurality of first sub-electrodes or a plurality of second sub-electrodes corresponding to the plurality of sub-pixels; A plurality of strip-shaped through holes are provided on the first sub-electrode or the second sub-electrode at intervals along the width / length direction of the cover plate, and the orthographic projection of the strip-shaped through holes toward the array substrate falls within the orthographic projection of the shading strip toward the array substrate.

5. The display panel according to claim 1, characterized in that: The distances between adjacent shading strips in the same direction are equal; The tangent value of the maximum viewing angle of the display panel is the ratio of the distance from the side of the shading strip away from the light-emitting layer to the second electrode layer to the distance between the adjacent shading strips in the same direction.

6. The display panel according to claim 5, characterized in that: The shading strip comprises at least one sub-shading strip; or The shading strip includes a plurality of sub-shading strips, and a raised layer is arranged between adjacent sub-shading strips, and the raised layer is made of a transparent material.

7. The display panel according to claim 1, characterized in that: The distance between adjacent shading strips along the width / length direction of the cover plate is greater than the dimension of the shading strip in the width / length direction.

8. A display device, characterized in that: It includes: The display panel according to any one of claims 1 to 7.

9. An electronic device, characterized in that: It includes: The display device according to claim 8.

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