Display panel and display device
By using an array of privacy units arranged in the display panel to reflect light, the problem of reduced brightness caused by privacy design is solved, achieving privacy effect while improving user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN TIANMA DISPLAY TECH CO LTD
- Filing Date
- 2023-05-05
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, privacy designs for electronic products, which involve applying privacy films, result in reduced light emission and increased power consumption, thus affecting the user experience.
The display panel design includes a light-emitting layer, a light-transmitting layer, and a privacy layer. The privacy layer consists of multiple privacy units arranged in an array. It uses a first curved surface to reflect light to adjust the light propagation path, reduce the viewing angle range, and avoid light loss.
While achieving privacy protection, it also avoids reducing the brightness of the light source, thus improving the user experience.
Smart Images
Figure CN116524815B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display device technology, and more particularly to a display panel and a display device. Background Technology
[0002] Electronic products are now widely used in all aspects of people's lives. While bringing convenience to people's lives, electronic products can also easily lead to the leakage of personal privacy.
[0003] In related technologies, privacy protection design for electronic products usually involves applying a privacy film to the surface of the display screen. However, applying a privacy film reduces the brightness of the screen, which can easily cause visual fatigue for users and increase the power consumption of electronic products, thus negatively impacting the user experience.
[0004] Therefore, developing a display panel with good privacy protection has become one of the urgent technical problems to be solved. Summary of the Invention
[0005] This application provides a display panel and a display device, which aim to alleviate the problem of reduced light emission brightness of the display panel due to privacy protection and enhance the user experience.
[0006] In a first aspect, this application proposes a display panel comprising a light-emitting layer, a light-transmitting layer, and a privacy layer. The light-emitting layer includes an emitting surface through which light is emitted. The light-transmitting layer is disposed on one side of the emitting surface and includes a light-emitting surface. The privacy layer is disposed between the emitting surface and the light-emitting surface and includes a plurality of privacy units arranged in an array perpendicular to its own thickness direction. Each privacy unit includes at least a first arcuate surface that protrudes in a direction away from the centerline of the privacy unit. The first arcuate surface is used to reflect light to adjust the propagation path of the light.
[0007] In some embodiments, the privacy unit further includes a first surface and a second surface, the second surface being opposite to the first surface along the thickness direction and located on the side of the first surface away from the emission surface, wherein a first arcuate surface is located between the first surface and the second surface, and along a direction parallel to the thickness direction and pointing from the first surface to the second surface, the distance from a point on the first arcuate surface to the center line increases.
[0008] In some embodiments, the first surface includes a second arcuate surface and a first surface. The second arcuate surface is disposed opposite to the exit surface and protrudes in a direction away from the second surface. The first surface is connected to the second arcuate surface and is located within the space enclosed by the first arcuate surface. In this case, along a direction parallel to the thickness direction and pointing from the second arcuate surface to the second surface, the distance from a point on the first surface to the center line decreases.
[0009] In some implementations, the curvature of the first arcuate surface is 0.23 to 0.43.
[0010] In some implementations, the curvature of the second arcuate surface is 0.23 to 0.43.
[0011] In some embodiments, the light-emitting layer includes a light-emitting area, and pixels for emitting light are disposed within the light-emitting area, with the privacy unit disposed opposite to the pixels.
[0012] In some implementations, the number of privacy screen units is A and the number of pixels is B along the direction perpendicular to the thickness, where 1 / 10 ≤ A / B ≤ 1.
[0013] In some implementations, the privacy layer is disposed between the light-transmitting layer and the light-emitting layer.
[0014] In some embodiments, the display panel further includes an encapsulation structure layer and an inkjet printing layer, the encapsulation structure layer being located between the light-transmitting layer and the light-emitting layer; the inkjet printing layer is embedded within the encapsulation structure layer, and a privacy shield is embedded within the inkjet printing layer.
[0015] In some implementations, the privacy layer is embedded within the light-transmitting layer.
[0016] Secondly, this application provides a display device that includes a display panel as described in any embodiment of the first aspect of this application.
[0017] A display panel according to an embodiment of this application includes a light-emitting layer, a light-transmitting layer, and a privacy layer. The privacy layer includes a plurality of privacy units arranged in an array. Each privacy unit has a first arc-shaped surface that reflects light emitted from the emitting surface of the light-emitting layer. After reflection, the angle between the light's propagation direction and the thickness direction of the privacy unit decreases, thereby reducing the viewing angle of the display panel and achieving privacy protection. Crucially, the privacy layer in this embodiment achieves privacy protection through light reflection, effectively avoiding light loss and mitigating the reduction in brightness caused by privacy protection, thus enhancing the user experience. Attached Figure Description
[0018] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.
[0019] Figure 1 A partial structural schematic diagram of a display panel provided in some embodiments of this application;
[0020] Figure 2 A partial structural schematic diagram of a display panel provided for some embodiments of this application;
[0021] Figure 3A partial structural schematic diagram of a display panel provided for other embodiments of this application;
[0022] Figure 4 A partial structural schematic diagram of the privacy layer of a display panel provided in some embodiments of this application;
[0023] Figure 5 A schematic diagram illustrating the privacy protection principle of a privacy protection unit for a display panel provided in some embodiments of this application;
[0024] Figure 6 A schematic diagram of a privacy screen unit for a display panel provided in some embodiments of this application;
[0025] Figure 7 Another schematic diagram of the privacy unit of the display panel provided in some embodiments of this application;
[0026] Figure 8 This is another schematic diagram of the privacy unit of a display panel provided in some embodiments of this application.
[0027] The accompanying drawings may not be drawn to scale.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Emissive layer; 11. Light ray; 12. Exit surface;
[0030] 20. Transparent layer; 21. Light-emitting surface;
[0031] 30. Privacy shield; 31. Privacy shield unit; 311. First arc-shaped surface; 312. Center line; 313. First surface; 313a. Second arc-shaped surface; 313b. First surface; 313c. Second surface; 314. Second surface;
[0032] 40. Pixels; 50. Encapsulation structure layer; 60. Inkjet printing layer;
[0033] X, thickness direction. Detailed Implementation
[0034] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.
[0035] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.
[0036] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] Electronic products are now widely used in all aspects of people's lives. While bringing convenience to people's lives, electronic products can also easily lead to the leakage of personal privacy.
[0038] In related technologies, privacy designs for electronic products typically involve applying a privacy film to the display screen. This film usually has multiple channels for light transmission, allowing only light at specific angles to escape, while light emitted at larger angles is blocked. This reduces the viewing angle and achieves the privacy effect. However, privacy films also have significant drawbacks. The blocked light results in light loss, reducing the screen brightness and increasing both user eye strain and device power consumption.
[0039] In view of the above-mentioned technical problems, this application proposes a display panel including a light-emitting layer, a light-transmitting layer, and a privacy layer. The privacy layer includes a plurality of privacy units arranged in an array. Each privacy unit has a first arc-shaped surface, which can reflect light emitted from the emitting surface of the light-emitting layer. After reflection, the angle between the propagation direction of the light and the thickness direction of the privacy unit is reduced, thereby reducing the viewing angle of the display panel and achieving privacy protection. Crucially, the privacy layer of this application achieves privacy protection through light reflection, effectively avoiding light loss and mitigating the problem of reduced brightness caused by privacy protection, thus enhancing the user experience.
[0040] The following describes some embodiments of this application in further detail with reference to the accompanying drawings.
[0041] Please see Figures 1 to 5 In some embodiments, the display panel includes a light-emitting layer 10, a light-transmitting layer 20, and a privacy layer 30. The light-emitting layer 10 includes an emitting surface 12, through which light 11 is emitted. The light-transmitting layer 20 is disposed on one side of the emitting surface 12 and includes a light-emitting surface 21. The privacy layer 30 is disposed between the emitting surface 12 and the light-emitting surface 21. The privacy layer 30 includes a plurality of privacy units 31 arranged in an X-array perpendicular to its own thickness direction. Each privacy unit 31 includes at least a first arcuate surface 311, which protrudes toward a direction away from the centerline 312 of the privacy unit 31. The first arcuate surface 311 is used to reflect the light 11 to adjust the propagation path of the light 11.
[0042] In this embodiment, the privacy screen unit 31 can protrude in a direction away from its own centerline 312 to form a first arc-shaped surface 311. The first arc-shaped surface 311 can reflect part of the light 11 incident on the privacy screen unit 31, for example... Figure 5 As shown. When light 11 enters the privacy unit 31 via the exit surface 12 and is reflected by the first arc-shaped surface 311, the propagation direction of light 11 changes. For the reflected light 11, the angle between it and the thickness direction X after reflection is smaller than the angle before reflection. This allows the light 11, which was originally emitted at a larger angle of inclination, to emit at a smaller angle after passing through the privacy layer 30, thereby reducing the viewing angle range of the display panel and thus achieving privacy protection for the display panel. It should be noted that the angle of inclination referred to in this application refers to the angle between the propagation direction of light 11 and the thickness direction X.
[0043] Therefore, the first arc-shaped curved surface 311 of this application embodiment can reflect the light 11, which not only realizes privacy protection of the display panel, but also effectively avoids the problem of light loss during privacy protection, thereby effectively alleviating the problem of reduced light brightness of the display panel due to privacy protection and enhancing the user experience.
[0044] The privacy layer 30 is disposed between the emission surface 12 and the light emission surface 21, and the privacy layer 30 can be disposed in various ways.
[0045] In some examples, such as Figure 1As shown, the privacy layer 30 can be disposed between the light-transmitting layer 20 and the light-emitting layer 10. In these examples, the privacy layer 30 can exist as an independent structural layer. The advantage of this arrangement is that it reduces the molding difficulty of the privacy layer 30, which helps to reduce the processing difficulty of the display panel. In addition to the privacy layer 30, other structural layers can also be disposed between the light-transmitting layer 20 and the light-emitting layer 10, such as polarizing layers, filter layers, touch layers, etc., which are not limited to this application. When a multi-layer structure is disposed between the light-transmitting layer 20 and the light-emitting layer 10, the privacy layer 30 can be disposed close to the light-transmitting layer 20 or close to the light-emitting layer 10, which is not limited in this application.
[0046] In other examples, such as Figure 2 As shown, the display panel may further include an encapsulation structure layer 50 and an inkjet printing layer 60. The encapsulation structure layer 50 is located between the light-transmitting layer 20 and the light-emitting layer 10. The inkjet printing layer 60 is embedded within the encapsulation structure layer 50, and a privacy screen layer 30 is embedded within the inkjet printing layer 60. Generally, the encapsulation structure layer 50 has good structural stability. Embedding the privacy screen layer 30 within the encapsulation structure layer 50 can maximize the protective effect of the privacy screen layer 30, thereby giving the display panel relatively stable privacy performance. Simultaneously, to enhance the bonding effect between the privacy screen layer 30 and the encapsulation structure layer 50, the inkjet printing layer 60 is embedded within the encapsulation structure layer 50. The inkjet printing layer 60 can be made of a similar material to the privacy screen layer 30, so that the privacy screen layer 30 and the inkjet printing layer 60 have a relatively stable bonding effect, thereby improving the bonding stability between the privacy screen layer 30 and the encapsulation structure layer 50.
[0047] In some other examples, such as Figure 3 As shown, the privacy layer 30 can be embedded within the light-transmitting layer 20. This improves the bonding strength between the privacy layer 30 and the light-transmitting layer 20, enhancing the structural stability of the privacy layer 30 and thus improving the structural stability of the display panel and the privacy protection reliability of the display panel. In these examples, a portion of the light-transmitting layer 20 can be located on the side of the privacy layer 30 closer to the light-emitting layer 10, while another portion can be located on the side of the privacy layer 30 farther from the light-emitting layer 10. The light-transmitting layer 20 can completely cover the privacy layer 30 along its perimeter, or it can be located only on both sides of the privacy layer 30 in the thickness direction X; this application does not limit this.
[0048] The privacy screen 30 includes a plurality of privacy units 31, which are arranged in an array along an X-axis perpendicular to the thickness direction of the privacy screen 30, for example... Figure 4 As shown. It can be understood that the thickness direction X perpendicular to the privacy layer 30 includes both the transverse direction perpendicular to the thickness direction X and the longitudinal direction perpendicular to the thickness direction X.
[0049] Please see Figures 4 to 8 In some embodiments, the privacy unit 31 further includes a first surface 313 and a second surface 314, the second surface 314 being opposite to the first surface 313 along the thickness direction X and located on the side of the first surface 313 away from the emission surface 12, wherein the first arcuate surface 311 is located between the first surface 313 and the second surface 314, and along a direction parallel to the thickness direction X and pointing from the first surface 313 to the second surface 314, the distance from a point on the first arcuate surface 311 to the center line 312 increases.
[0050] It is understood that the direction referred to in this application, parallel to the thickness direction X and pointing from the first surface 313 to the second surface 314, can be considered a unidirectional direction parallel to the thickness direction X. In this direction, the distance from a point on the first arcuate surface 311 to the center line 312 increases progressively; that is, the outer contour dimension of the first arcuate surface 311 can increase progressively, for example... Figure 6 As shown, the privacy unit 31 of this application can have a roughly "bowl-shaped" structure. Since the incident angles of the light rays 11 reflected by each light reflection point on the inner wall of the bowl-shaped structure are different, the angle between the incident direction of the light ray 11 and the thickness direction X is larger for light reflection points closer to the bottom of the bowl, and smaller for light reflection points closer to the rim. To ensure that the light rays 11 have approximately the same exit direction after reflection, the tangent angle of the light reflection point closer to the bottom of the bowl should be larger, and the tangent angle of the light reflection point closer to the rim should be smaller. When numerous light reflection points are connected, they form the first arc-shaped surface 311. Setting the privacy unit 31 to a bowl-shaped structure can effectively prevent the exit directions of light rays 11 with different incident directions from intersecting after reflection, thus avoiding display panel display disorder.
[0051] The first surface 313 and the second surface 314 are opposite to each other along the thickness direction X, and they can have various positional relationships.
[0052] For example, in some examples, such as Figure 6 As shown, the first surface 313 can be a plane, and the second surface 314 is parallel to the first surface 313. It is understood that in these examples, the second surface 314 can also be a plane. The advantage of this arrangement is that it effectively simplifies the structure of the privacy screen unit 31, reduces the molding difficulty of the privacy screen layer 30, and thus helps to reduce the manufacturing difficulty of the display panel.
[0053] For example, in other examples, such as Figure 7As shown, the first surface 313 may include a second arcuate surface 313a and a first surface 313b. The second arcuate surface 313a is disposed opposite to the exit surface 12 and protrudes in a direction away from the second surface 314. The first surface 313b is connected to the second arcuate surface 313a and is located within the space enclosed by the first arcuate surface 311. In the direction parallel to the thickness direction X and pointing from the second arcuate surface 313a to the second surface 314, the distance from a point on the first surface 313b to the center line 312 decreases.
[0054] In these examples, the second curved surface 313a can refract light ray 11, for example... Figure 5 As shown, when light 11 enters the privacy unit 31 and passes through the second arc-shaped surface 313a, light 11 is refracted. For a beam of light 11 that enters the second arc-shaped surface 313a at an angle, the angle between the refracted light and the thickness direction X is smaller than the angle before refraction. This allows the light 11, which originally exited at a larger angle, to exit at a smaller angle after passing through the second arc-shaped surface 313a. This can concentrate the light 11 that the first arc-shaped surface 311 cannot receive, further enhancing the concentration effect of the light 11 and strengthening the privacy effect of the privacy layer 30, thereby improving the privacy performance of the display panel. It is understood that not all light 11 incident on the second arc-shaped surface 313a is refracted. For example, some light 11 with an incident direction parallel to the thickness direction X may not be refracted, and their propagation direction before and after passing through the second arc-shaped surface 313a may not change.
[0055] It is understandable that the direction parallel to the thickness direction X and pointing from the second curved surface 313a to the second surface 314 can be considered a unidirectional direction parallel to the thickness direction X. In this direction, the distance from a point on the first surface 313b to the center line 312 decreases. The advantage of this arrangement is that it allows the bottom of the privacy unit 31 to be hollowed out, so that the privacy unit 31 can receive the light 11 from the light-emitting layer 10. Of course, in some other examples, the distance from a point on the first surface 313b to the center line 312 in the direction parallel to the thickness direction X and pointing from the second curved surface 313a to the second surface 314 can also be uniform or increase.
[0056] Furthermore, such as Figure 8As shown, the first surface 313 may further include a second surface 313c, which is planar and parallel to the second surface 314. The second surface 313c connects the first surface 313b and the first arc-shaped surface 311. In this embodiment, the second surface 313c may be annular. The advantage of having the second surface 313c is that it can reduce the cutout volume of the privacy unit 31, which helps to enhance the structural strength of the privacy unit 31 and thus improve the structural stability of the privacy layer 30.
[0057] In some embodiments, the curvature of the first arc-shaped surface 311 is 0.23 to 0.43. It can be understood that the greater the curvature of the first arc-shaped surface 311, the greater its degree of curvature, and correspondingly, the more light rays 11 can be reflected by the first arc-shaped surface 311. In other words, when the height of the privacy unit 31 is constant, the more curved the first arc-shaped surface 311, the fewer light rays 11 can escape without being reflected by the first arc-shaped surface 311, and the more obvious the privacy effect of the privacy unit 31, thus reducing the viewing angle range of the display panel. Conversely, the smaller the curvature of the first arc-shaped surface 311, the less curved it is, and the more light rays 11 can escape without being reflected by the first arc-shaped surface 311, which is equivalent to reducing the focusing effect of the privacy unit 31 on the light rays 11, thus increasing the viewing angle range of the display panel. It should be noted that when the curvature of the first curved surface 311 is too small, the privacy layer 30 has a weaker effect on converging the light 11, which may result in an insignificant privacy protection effect of the display panel. Conversely, when the curvature of the first curved surface 311 is too large, the light 11 may cross or overlap after passing through the privacy layer 30, leading to image display disorder on the display panel. Therefore, in this embodiment, the curvature of the first curved surface 311 is set to 0.23 to 0.43, which allows the display panel to have more suitable privacy protection performance, so as to meet the privacy protection needs of the display panel in most cases and avoid image display disorder on the display panel.
[0058] In some embodiments, the curvature of the second arcuate surface 313a is 0.23 to 0.43. Similarly, it can be understood that the greater the curvature of the second arcuate surface 313a, the greater its degree of curvature, and correspondingly the stronger its focusing effect on the light 11, thus resulting in a smaller visible range of the display panel; conversely, the smaller the curvature of the second arcuate surface 313a, the less its degree of curvature, and correspondingly the weaker its focusing effect on the light 11, thus resulting in a larger visible range of the display panel. The embodiments of this application set the curvature of the second arcuate surface 313a to 0.23 to 0.43, which can further optimize the privacy effect of the privacy layer 30, thereby further enhancing the privacy performance of the display panel.
[0059] Please continue reading. Figures 4 to 8 In some embodiments, the light-emitting layer 10 includes a light-emitting area, and pixels 40 for emitting light 11 are disposed within the light-emitting area. The privacy unit 31 is disposed opposite to the pixels 40.
[0060] It is understood that the light-emitting layer 10 may include non-light-emitting areas in addition to the light-emitting areas, such as the periphery of the display panel. Pixels 40 may be disposed within the light-emitting areas, serving as the light-emitting structure of the display panel. Multiple pixels 40 can be arranged vertically and horizontally to form a dense pixel array. When the display panel is powered on, each pixel 40 emits light, thus illuminating the light-emitting areas of the light-emitting layer 10. The privacy unit 31 is positioned opposite the pixels 40, allowing the privacy unit 31 to better receive the light 11 emitted by the pixels 40, thereby altering the propagation path of the light 11 and achieving privacy protection for the display panel.
[0061] The privacy unit 31 is positioned relative to the pixel 40, which can include various situations. For example, one privacy unit 31 can correspond to multiple pixels 40, or one privacy unit 31 can correspond to one pixel 40. This application does not limit this.
[0062] Specifically, along the thickness direction X, the number of privacy screen units 31 is A, and the number of pixels 40 is B, where 1 / 10 ≤ A / B ≤ 1. In other words, along the horizontal or vertical direction X perpendicular to the thickness direction, the number of pixels 40 corresponding to one privacy screen unit 31 is between 1 and 10.
[0063] As some specific examples, such as the appendix to this application Figures 4 to 8 The privacy protection unit 31 and the pixel 40 can be set one-to-one. In this way, each pixel 40 has a corresponding privacy protection unit 31, which can maximize the coverage of the pixel 40, reduce the escape of light 11, increase the number of light 11 gathered, and enhance the privacy protection performance of the display panel.
[0064] Of course, as other specific examples, the privacy protection unit 31 and the pixel 40 can also be set in a one-to-many configuration. This simplifies the structural forming difficulty of the privacy protection layer 30 and helps reduce the processing difficulty of the display panel. It should be noted that when the number of pixels 40 corresponding to one privacy protection unit 31 exceeds ten, the privacy protection unit 31 becomes larger and its arrangement becomes sparser, which may cause some light 11 to escape, thereby weakening the privacy protection performance of the display panel.
[0065] Furthermore, this application also proposes a display device comprising a display panel as described in any of the above embodiments. The display device referred to in this application can be any electronic product with display functionality, such as mobile phones, monitors, and televisions, but this application is not limited thereto.
[0066] As a specific embodiment of this application, the display panel includes a light-emitting layer 10, a light-transmitting layer 20, and a privacy layer 30. The light-emitting layer 10 includes an emitting surface 12, through which light 11 is emitted. The light-transmitting layer 20 is disposed on one side of the emitting surface 12 and includes a light-emitting surface 21. The privacy layer 30 is disposed between the emitting surface 12 and the light-emitting surface 21, and includes a plurality of privacy units 31 arranged in an X-array perpendicular to its own thickness direction. Each privacy unit 31 has a first arcuate surface 311, a first surface 313, and a second surface. 314, the first arc-shaped surface 311 protrudes in a direction away from the center line 312 of the privacy unit 31. The first arc-shaped surface 311 is used to reflect light 11 to adjust the propagation path of light 11. The second surface 314 and the first surface 313 are opposite to each other along the thickness direction X. The first arc-shaped surface 311 is located between the first surface 313 and the second surface 314. Along the direction parallel to the thickness direction X and pointing from the first surface 313 to the second surface 314, the distance from the point on the first arc-shaped surface 311 to the center line 312 increases. The first surface 313 includes a second arcuate surface 313a and a first surface 313b. The second arcuate surface 313a is disposed opposite to the exit surface 12 and protrudes in a direction away from the second surface 314. The first surface 313b is connected to the second arcuate surface 313a and is located within the space enclosed by the first arcuate surface 311. Along the direction parallel to the thickness direction X and pointing from the second arcuate surface 313a to the second surface 314, the distance from a point on the first surface 313b to the center line 312 decreases.
[0067] According to the display panel of this application embodiment, when light 11 enters the privacy unit 31 via the exit surface 12 and is reflected by the first arc-shaped surface 311, the propagation direction of light 11 changes. For the same beam of light 11, the angle between it and the thickness direction X after reflection is smaller than the angle between it and the thickness direction X before reflection. This allows light 11, which was originally emitted at a larger angle of inclination, to be emitted at a smaller angle of inclination after passing through the privacy layer 30, thereby reducing the viewing angle range of the display panel and thus achieving privacy protection for the display panel. Furthermore, the first arc-shaped surface 311 of this application embodiment can reflect light 11, which not only achieves privacy protection for the display panel but also effectively avoids the problem of light loss during the privacy protection process, thereby effectively alleviating the problem of reduced brightness of the display panel due to privacy protection and enhancing the user experience.
[0068] Furthermore, the second arc-shaped surface 313a in this embodiment can also refract light 11. When light 11 enters the privacy unit 31 and passes through the second arc-shaped surface 313a, light 11 is refracted. For a beam of light 11 that enters the privacy unit 31 at an angle, the angle between it and the thickness direction X after refraction is smaller than the angle between it and the thickness direction X before refraction. This allows light 11 that originally shot out at a larger angle to shoot out at a smaller angle after passing through the second arc-shaped surface 313a. This can concentrate light 11 that the first arc-shaped surface 311 cannot reflect, further enhancing the concentration effect of light 11 and strengthening the privacy effect of the privacy layer 30, thereby improving the privacy performance of the display panel.
[0069] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A display panel, characterized in that, include: The light-emitting layer includes an emitting surface through which light is emitted. The light-emitting layer includes a light-emitting area, and pixels for emitting the light are disposed within the light-emitting area. The privacy unit covers the pixels. A light-transmitting layer is disposed on one side of the emission surface, the light-transmitting layer including a light-emitting surface; A privacy layer is disposed between the emission surface and the light emission surface. The privacy layer includes a plurality of privacy units arranged in an array along a direction perpendicular to its own thickness, and the first arc-shaped surfaces of two adjacent privacy units are connected. The privacy protection unit includes: The first surface includes a second arcuate surface and a first surface. The second arcuate surface is disposed opposite to the emission surface and protrudes in a direction away from the light-emitting layer. The first surface is connected to the second arcuate surface and is located within the space enclosed by the first arcuate surface. Along the direction parallel to the thickness direction and pointing from the second arcuate surface to the second surface, the distance from a point on the first surface to the center line decreases. The second surface is opposite to the first surface along the thickness direction and is located on the side of the first surface away from the emission surface; A first arc-shaped surface is located between the first surface and the second surface. The first arc-shaped surface protrudes in a direction away from the center line of the privacy unit. Along a direction parallel to the thickness direction and pointing from the first surface to the second surface, the distance from a point on the first arc-shaped surface to the center line increases. The first arc-shaped surface is used to reflect the light to adjust the propagation path of the light, thereby reducing the viewing angle range of the display panel and ensuring that the light has approximately the same emission direction after being reflected by the first arc-shaped surface.
2. The display panel according to claim 1, characterized in that, The curvature of the first arcuate surface is 0.23~0.43; and / or The curvature of the second arc-shaped surface is 0.23~0.
43.
3. The display panel according to claim 1, characterized in that, The privacy unit is positioned opposite to the pixel.
4. The display panel according to claim 3, characterized in that, Along the direction perpendicular to the thickness, the number of privacy screen units is A, the number of pixels is B, and 1 / 10 ≤ A / B ≤ 1.
5. The display panel according to claim 1, characterized in that, The privacy layer is disposed between the light-transmitting layer and the light-emitting layer.
6. The display panel according to claim 5, characterized in that, The display panel also includes: An encapsulation structure layer is located between the light-transmitting layer and the light-emitting layer; An inkjet printing layer is embedded within the encapsulation structure layer, and the privacy shield is embedded within the inkjet printing layer.
7. The display panel according to claim 1, characterized in that, The privacy layer is embedded within the light-transmitting layer.
8. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 7.