Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a display function layer, a lens layer located on one side of a display surface of the display function layer, the lens layer comprising a plurality of lenses, and a dot structure, a projection of the dot structure on the lens layer overlapping a junction position of at least two adjacent lenses. The application solves the problem of uneven light distribution in the prior art display panel.

Description

Technical Field

[0001] This invention relates to the field of display device technology, and more specifically, to a display panel and a display device. Background Technology

[0002] With the continuous development of the display field, various types of display panels have gradually appeared on the field of view. Taking reflective display panels as an example, current reflective display panels need to be equipped with a 3D lens layer to achieve 3D display in order to achieve light splitting. However, since the light source of reflective display panels comes from ambient light, if the 3D lens layer is directly placed on the display panel, it is easy to cause uneven distribution of incident light, which reduces the display brightness of the display panel and affects the uniformity of the display.

[0003] In other words, existing display panels suffer from uneven light distribution. Summary of the Invention

[0004] The main objective of this invention is to provide a display panel and a display device to solve the problem of uneven light distribution in existing display panels.

[0005] To achieve the above objectives, according to one aspect of the present invention, a display panel is provided, comprising: a display functional layer; a lens layer located on one side of the display surface of the display functional layer, the lens layer comprising a plurality of lenses; and a dot structure, the projection of the dot structure onto the lens layer overlapping with at least a portion of the boundary position of two adjacent lenses.

[0006] According to another aspect of the present invention, a display device is also provided, comprising: a light source; the aforementioned display panel, wherein the light source is located on the side of the display panel.

[0007] According to the technical solution of this invention, the display panel includes a display functional layer, a lens layer, and a dot structure. The lens layer is located on one side of the display surface of the display functional layer and includes multiple lenses. The projection of the dot structure onto the lens layer overlaps with the boundary positions of at least a portion of two adjacent lenses. By setting the lens layer on one side of the display functional layer and including multiple lenses, the lens layer, in conjunction with the display functional layer, achieves the display function. By setting the dot structure and planning the projection of the dot structure onto the lens layer to overlap with the boundary positions of at least a portion of two adjacent lenses, the position of the dot structure corresponds to the boundary positions of at least a portion of two adjacent lenses. This allows the dot structure to scatter the incident light when it is incident on external light sources, thus avoiding the uneven distribution of incident light caused by directly placing the lens layer and the display functional layer together. By scattering the incident light through the dot structure, the light is fully mixed, which helps to increase the uniformity of light distribution and thus ensures the uniformity of display brightness and high brightness of the display panel. Attached Figure Description

[0008] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0009] Figure 1 A cross-sectional view of a display panel according to an embodiment of the present invention is shown;

[0010] Figure 2 A cross-sectional view of a display panel according to another embodiment of the present invention is shown;

[0011] Figure 3 A cross-sectional view of a display panel according to another embodiment of the present invention is shown;

[0012] Figure 4 An optical path diagram of the lens layer of a display panel according to an alternative embodiment of the present invention is shown;

[0013] Figure 5 A cross-sectional view of a display panel according to another embodiment of the present invention is shown;

[0014] Figure 6 A cross-sectional view of a display panel according to another embodiment of the present invention is shown;

[0015] Figure 7 A top view of the display panel of another alternative embodiment of the present invention is shown;

[0016] Figure 8 A top view of the display panel of another alternative embodiment of the present invention is shown;

[0017] Figure 9 A top view of the display panel of another alternative embodiment of the present invention is shown;

[0018] Figure 10 A schematic diagram of the structure of a display device according to an optional embodiment of the present invention is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. Lens layer; 11. Prism; 12. First region; 20. Dot structure; 21. Groove structure; 22. Raised dot structure; 30. Electronic paper; 31. Optical adhesive layer; 32. Electrode layer; 33. Electrophoretic layer; 34. Substrate; 40. First direction; 50. Second direction; 60. First cross-sectional direction; 70. Filler portion; 80. Light source. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0024] To address the problem of uneven light distribution in existing display panels, this invention provides a display panel and a display device.

[0025] like Figure 1 and Figure 2 As shown, the display panel includes a display function layer, a lens layer 10, and a dot structure. The lens layer 10 is located on one side of the display surface of the display function layer and includes multiple lenses. The projection of the dot structure onto the lens layer 10 overlaps with the boundary positions of at least a portion of two adjacent lenses. By setting the lens layer 10 on one side of the display function layer and including multiple lenses, the lens layer 10 works in conjunction with the display function layer to achieve the display function. By setting the dot structure and planning the projection of the dot structure onto the lens layer 10 to overlap with the boundary positions of at least a portion of two adjacent lenses, the position of the dot structure corresponds to the boundary positions of at least a portion of two adjacent lenses. This allows the dot structure to scatter the incident light when it is incident on the external light source, thus avoiding the uneven distribution of incident light caused by directly placing the lens layer 10 and the display function layer together. By scattering the incident light through the dot structure, the light is fully mixed, which helps to increase the uniformity of light distribution and thus ensures the uniformity of display brightness and high brightness of the display panel.

[0026] It should be noted that the above-mentioned display function layer is a reflective display function layer, such as... Figure 4 As shown, incident light is emitted towards the cross-section of the lens. After reaching the lens's cross-section, the incident light is refracted, and the refracted light propagates towards the display functional layer. The display functional layer then reflects the received light, which, after passing through the lens layer 10 again, forms a naked-eye 3D display effect. The cross-section of the lens is its two end faces. By setting a dot structure (not shown in the figure), the dot structure can scatter the incident light, thereby increasing the uniformity of light distribution.

[0027] It should also be noted that the overlap between the projection of the point structure on the lens layer 10 and the boundary position of at least a portion of the two adjacent lenses includes two cases: one is that the point structure is set on the lens layer 10 and located at the boundary position of the adjacent lenses; the other is that the point structure is not set on the lens layer 10, but only the projection of the point structure on the lens layer 10 overlaps with the boundary position of at least a portion of the two adjacent lenses, that is, the projection of the point structure on the lens layer 10 at least partially covers the boundary position of the two adjacent lenses.

[0028] It should be noted that in this application, the multiple lenses constituting the lens layer 10 are all cylindrical lenses. These lenses are the basic units constituting the lens layer 10. The multiple lenses are arranged sequentially along a first direction, and all multiple lenses extend along a second direction. The first direction is perpendicular to the second direction, and the surface of each lens away from the display functional layer is convex. The lens boundary position mentioned in this application refers to the connection position of two adjacent lenses in the lens layer 10. Specifically, it is the edge portion where two lenses are in contact or adjacent. When the dot structure is directly disposed on the lens layer 10 and located at the boundary position of adjacent lenses, this means that the dot structure is located at the contact edge of two lenses. When the dot structure is not directly disposed on the lens layer 10, but its projection on the lens layer 10 overlaps with at least part of the boundary position of two adjacent lenses, in this case, the projection of the dot structure on the lens layer 10 overlaps with at least part of the edge portion where two adjacent lenses are in contact or adjacent.

[0029] The display panel provided in the embodiments of this application will be described below. The following embodiments are merely illustrative examples, but the embodiments of this application are not limited thereto.

[0030] like Figure 1 As shown, Figure 1 The illustrated embodiment provides a display panel including a display functional layer, a lens layer 10, and dot structures. The display functional layer is electronic paper, and the electronic paper 30 sequentially includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33, and a substrate 34 along a direction away from the lens layer 10. Multiple dot structures are disposed on the lens layer 10, and are located on the surface of the lens layer 10 facing the display functional layer. Dot structures are also disposed at the junction of any two adjacent lenses in any group of lenses. Each junction of adjacent lenses in the same group corresponds to one or more dot structures. When multiple dot structures correspond to the junction of adjacent lenses in the same group, adjacent dot structures are spaced apart. In this embodiment, all dot structures are groove structures 21. This arrangement ensures the scattering effect of the multiple groove structures 21 on the incident light, which is beneficial for the scattered light to stably enter the electronic paper 30, and helps to increase the uniformity of the final emitted light distribution.

[0031] Optionally, the multiple point structures on the lens layer 10 can all be set as convex point structures 22, or the multiple point structures on the lens layer 10 can include a variety of convex point structures 22 and groove structures 21, which can be set according to the actual situation. By rationally planning the position and shape of the multiple point structures, it is beneficial to ensure the uniformity of the distribution of the point structures, thereby ensuring the sufficient diffusion of incident light by the point structures.

[0032] Specifically, the dot structure is hemispherical, with both its diameter and height greater than 0 μm and less than or equal to 50 μm. More specifically, the convex dot structure 22 is hemispherical, with both its diameter and height greater than 0 μm and less than or equal to 50 μm. The groove structure 21 is also hemispherical, with both its diameter and depth greater than 0 μm and less than or equal to 50 μm. By reasonably constraining the dimensions of the dot structure, it is beneficial to ensure that the dot structure can scatter light while maintaining a small size. This makes the dot structure invisible when viewed from the side of the display panel with the lens layer 10, thus ensuring a 3D glasses-free display effect.

[0033] like Figure 2 As shown, Figure 2 The illustrated embodiment provides a display panel including a display functional layer, a lens layer 10, and dot structures. The display functional layer is electronic paper, and the electronic paper 30 sequentially includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33, and a substrate 34 along a direction away from the lens layer 10. Multiple dot structures are located between the display functional layer and the lens layer 10. Multiple raised dot structures 22 are formed on the surface of the lens layer 10 facing the display functional layer. Raised dot structures 22 are provided at the junction of any two connected lenses. Raised dot structures 22 are also provided at the junction of any group of adjacent lenses among the multiple lenses. Multiple raised dot structures 22 correspond to the junctions of adjacent lenses in the same group, and adjacent raised dot structures 22 in the multiple raised dot structures 22 corresponding to the junctions of adjacent lenses in the same group are spaced apart.

[0034] Optionally, multiple groove structures 21 are formed on the surface of the display functional layer facing the lens layer 10. Specifically, multiple groove structures 21 are formed on the surface of the optical adhesive layer 31 facing the lens layer 10. Each groove structure 21 corresponds one-to-one with a corresponding convex structure 22, meaning the number of convex structures 22 is equal to the number of groove structures 21. Each convex structure 22 fills one-to-one within a groove structure 21, and each groove structure 21 is completely filled with its corresponding convex structure 22. This arrangement ensures that the multiple point structures include both convex structures 22 and groove structures 21. The combination of convex structures 22 and groove structures 21 enhances the light scattering effect, allowing incident light to be fully diffused, thus preventing brightness concentration or reduced display brightness.

[0035] Optionally, the lens layer 10 may be configured to form multiple groove structures 21 on the surface facing the display functional layer. A groove structure 21 may be provided at the junction of any two connected lenses. Multiple groove structures 21 may be provided at the junction of adjacent lenses in the same group, and adjacent groove structures 21 in the multiple groove structures 21 corresponding to the junction of adjacent lenses in the same group may be spaced apart. The display functional layer may form multiple convex structures 22 on the surface facing the lens layer 10. Specifically, the optical adhesive layer 31 may form multiple convex structures 22 on the surface facing the lens layer 10. Each groove structure 21 corresponds one-to-one with each convex structure 22, meaning the number of convex structures 22 is equal to the number of groove structures 21. Each convex structure 22 is filled in one-to-one with each groove structure 21, and each groove structure 21 is filled with its corresponding convex structure 22.

[0036] like Figure 3 As shown, Figure 3 The illustrated embodiment provides a display panel, which includes a display function layer, a lens layer 10, and a dot structure 20, and can be combined with... Figure 7 and Figure 8The shape and position of the dot structure 20 in this application can be understood by referring to the top view of the display panel shown. The display functional layer is electronic paper, and the electronic paper 30 sequentially includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33, and a substrate 34 along the direction away from the lens layer 10. There are multiple dot structures 20, all of which are located on the side surface of the lens layer 10 away from the display functional layer, and dot structures 20 are provided at the junctions of some adjacent lenses. All dot structures 20 are groove structures 21. Specifically, a groove structure 21 is provided at the junction of one group of adjacent lenses in a plurality of adjacent lenses, and a groove structure 21 is provided at the junction of another group of adjacent lenses in a plurality of adjacent lenses. There are no shared lenses in this group of lenses and the other group of lenses. That is to say, if multiple lenses are divided into multiple independent groups of adjacent lenses, and each group of adjacent lenses consists of two lenses, a groove structure 21 is provided at the junction of multiple independent groups of adjacent lenses. As shown in the figure, the first group of adjacent lenses has a groove structure 21 at the junction, the second group of adjacent lenses does not have a groove structure 21 at the junction, the third group of adjacent lenses has a groove structure 21 at the junction, and so on.

[0037] Optionally, groove structures 21 or convex structures 22 can be provided at the junction of any two adjacent lenses, and this is not limited to these. This arrangement helps to reduce the distribution density of the dot structures, ensuring scattering effect while making the dot structures less noticeable on one side of the lens layer 10, thus ensuring a better appearance.

[0038] Optionally, the multiple point structures on the side surface of the lens layer 10 away from the display functional layer can all be set as convex point structures 22, or the multiple point structures on the side surface of the lens layer 10 away from the display functional layer can include a variety of convex point structures 22 and groove structures 21, which can be set according to the actual situation. By rationally planning the position and shape of the multiple point structures, it is beneficial to ensure the uniformity of the distribution of the point structures, thereby ensuring the sufficient diffusion of incident light by the point structures.

[0039] like Figure 5 As shown, Figure 5The illustrated embodiment provides a display panel including a display functional layer, a lens layer 10, and dot structures. The display functional layer is electronic paper, and the electronic paper 30 sequentially includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33, and a substrate 34 along a direction away from the lens layer 10. Multiple dot structures are disposed on the lens layer 10, and multiple groove structures 21 are disposed on the surface of the lens layer 10 facing the display functional layer. Multiple groove structures 21 are disposed at the junction of any two adjacent lenses, and adjacent groove structures 21 at the junction of adjacent lenses in the same group are spaced apart. The groove structures 21 are selectively filled with filling portions 70, the refractive index of which is less than that of the lens layer 10. The filling portions 70 are transparent materials with a fixed refractive index. By providing filling portions 70 in the groove structures 21, it is beneficial to control the morphological uniformity of the structure containing the dot structures, and it can also prevent the entry of stains and avoid the generation of stray light. In this embodiment, each of the multiple groove structures 21 is filled with a corresponding filling portion 70. The number of groove structures 21 is equal to the number of filling portions 70, and the surface of the filling portion 70 facing the display functional layer is flush with the surface of the lens layer 10 facing the display functional layer. In other words, the surface of the lens layer 10 facing the display functional layer is a single plane. This arrangement allows the filling portion 70 to fill the groove structure 21 completely. Furthermore, due to the refractive index difference between the filling portion 70 and the lens layer 10, the uniformity of the morphology of the lens layer 10 is ensured, preventing the entry of dirt. It also ensures that the filling portion 70, in conjunction with the groove structure 21, can achieve sufficient diffusion of incident light, which is beneficial for ensuring the uniformity of light distribution.

[0040] Optionally, some of the groove structures 21 may be filled with filling portions 70, while others may not have filling portions 70. In this case, the number of groove structures 21 filled with filling portions 70 may be greater than, less than, or equal to the number of groove structures 21 without filling portions 70. The position and number of filling portions 70 can be adjusted according to actual needs and are not limited thereto.

[0041] like Figure 6 As shown, Figure 6The illustrated embodiment provides a display panel including a display functional layer, a lens layer 10, and dot structures. The display functional layer is electronic paper, and the electronic paper 30 sequentially includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33, and a substrate 34 along a direction away from the lens layer 10. The dot structures include multiple recessed structures 21, each disposed on the surface of the lens layer 10 away from the display functional layer. Multiple recessed structures 21 are also disposed at the junction of any two adjacent lenses. Adjacent recessed structures 21 at the junction of adjacent lenses in the same group are spaced apart. Each recessed structure 21 is filled with a corresponding filling portion 70, and the number of recessed structures 21 is equal to the number of filling portions 70. The refractive index of the filling portion 70 is less than the refractive index of the lens layer 10. By setting the filling part 70 and planning that there is a refractive index difference between the filling part 70 and the lens layer 10, on the one hand, the morphological uniformity of the lens layer 10 can be guaranteed and it can be prevented from being contaminated by external dirt. On the other hand, the filling part 70, together with the groove structure 21, can achieve sufficient diffusion of incident light, which is beneficial to ensuring the uniformity of light distribution.

[0042] Optionally, some of the groove structures 21 may be filled with filling portions 70, while others may not have filling portions 70. In this case, the number of groove structures 21 filled with filling portions 70 may be greater than, less than, or equal to the number of groove structures 21 without filling portions 70. The position and number of filling portions 70 can be adjusted according to actual needs and are not limited thereto.

[0043] Specifically, the difference in refractive index between the filling portion 70 and the lens layer 10 is greater than or equal to 0.2 and less than or equal to 0.4. By rationally planning the difference in refractive index between the filling portion 70 and the lens layer 10, it is beneficial to ensure the effect of the filling portion 70 in deflecting light and to ensure sufficient scattering.

[0044] like Figure 7 As shown, Figure 7 The illustrated embodiment provides a top view of a lens layer 10 of a display panel. The lens layer 10 includes multiple lenses, each of which is a prism 11. The prisms 11 are columnar and arranged sequentially along a first direction 40. All prisms 11 extend along a second direction 50, which is perpendicular to the first direction 40. The surface of each prism 11 furthest from the display functional layer is convex. This arrangement enables the lens layer 10 to function as a 3D prism layer in conjunction with the display functional layer, achieving 3D glasses-free display. Multiple dot structures are convex dot structures 22. The boundary position of any group of adjacent prisms 11 corresponds to multiple convex dot structures 22, and the boundary positions of adjacent prisms 11 within the same group correspond to multiple convex dot structures 22. Adjacent convex dot structures 22 within the boundary positions of adjacent prisms 11 within the same group are spaced apart.

[0045] exist Figure 7 In this embodiment, the arrangement of the multiple bump structures 22 includes four implementations. In the first implementation, the multiple bump structures 22 are located on the side surface of the lens layer 10 facing the display functional layer, and the bump structures are located at the junction of two adjacent lenses. In the second implementation, the multiple bump structures 22 are located on the side surface of the lens layer 10 away from the display functional layer, and the bump structures 22 are located at the junction of two adjacent lenses. In the third implementation, the multiple bump structures 22 are not provided on the lens layer 10, but only the projections of the multiple bump structures 22 on the lens layer 10 overlap with the junction of two adjacent lenses. In the fourth implementation, multiple bump structures 22 are provided on both the side surface of the lens layer 10 facing the display functional layer and the side surface of the display functional layer facing the lens layer 10. The rational arrangement of multiple convex structures 22 facilitates light guiding, enabling the lens layer 10 to integrate 3D display and light guiding functions with the multiple convex structures 22. This allows the multiple convex structures 22 to scatter incident light onto the display functional layer, which then reflects the received light upwards in a Lambertian manner. The reflected light then passes through the lens layer 10 again to form a naked-eye 3D display effect. Furthermore, this front-light-based approach, compared to solutions relying solely on ambient light, achieves more uniform incident light reflection, resulting in a more uniform reflective naked-eye 3D effect.

[0046] like Figure 7 As shown, the width of the prism along the first direction 40 is greater than or equal to 200 μm and less than or equal to 300 μm. Specifically, the ratio of the diameter of the dot structure to the width of the lens along the first direction 40 is greater than 0 and less than or equal to 0.25, and the ratio of the depth of the dot structure to the width of the lens along the first direction 40 is greater than 0 and less than or equal to 0.25. This configuration makes the size of the dot structure smaller than that of the lens, ensuring the light guiding effect while preventing the dot structure from being visible when viewed from the side of the display panel with the lens layer 10. It should be noted that other embodiments of this application also satisfy this parameter range.

[0047] like Figure 7As shown, multiple point structures are periodically distributed, with the distance between any two adjacent point structures being greater than 0 mm and less than or equal to 1 mm. Specifically, the distance between any two adjacent point structures at the boundary position of two adjacent lenses in the same group is greater than 0 mm and less than or equal to 1 mm, while the distance between adjacent point structures at the boundary position of two adjacent lenses in different groups is greater than 0 mm and less than or equal to 1 mm. This arrangement helps to control the distribution density of the multiple point structures, thereby avoiding excessive density and effectively balancing the arrangement density and diffusion effect of the point structures. It should be noted that other embodiments of this application also satisfy this parameter range.

[0048] like Figure 7 As shown, at least some point structures are spaced apart along a third direction. In one optional embodiment of this application, the third direction is angled relative to the first direction 40; specifically, the third direction is parallel to the first direction 40. In another embodiment of this application, the third direction is angled relative to the second direction 50; specifically, the third direction is parallel to the second direction 50. In yet another embodiment of this application, the third direction is angled relative to both the first direction 40 and the second direction 50; specifically, the third direction is angled at an acute or obtuse angle relative to the first direction 40, and also at an acute or obtuse angle relative to the second direction 50. The third direction here may be the first cross-sectional direction 60 described below.

[0049] like Figure 7 As shown, the area corresponding to the boundary position of two adjacent prisms 11 is the first region 12. The distance between two adjacent convex structures 22 within the same first region 12 is greater than the distance between two adjacent convex structures 22 located in different first regions 12. That is, the distance between two adjacent convex structures 22 corresponding to the boundary position of two adjacent prisms 11 in the same group is greater than the distance between two adjacent convex structures 22 corresponding to the boundary position of two adjacent prisms 11 in different groups. This setting makes the distribution density of convex structures 22 in the second direction 50 less than the distribution density of convex structures 22 in the first direction 40. By planning the distribution pattern of convex structures 22, the distribution of convex structures 22 is made more uniform and the periodicity is more complex, thereby avoiding the visibility of convex structures 22 to the user and ensuring the 3D naked-eye display effect.

[0050] like Figure 8 As shown, Figure 8The illustrated embodiment provides a top view of a lens layer 10 of a display panel. The lens layer 10 includes multiple lenses, each of which is a prism 11. The prisms 11 are columnar and are arranged sequentially along a first direction 40. Each prism 11 extends along a second direction 50, which is perpendicular to the first direction 40. The surface of each prism 11 away from the display functional layer is convex. The multiple point structures include various types of convex point structures 22 and recessed structures 21. When there are multiple convex point structures 22 and multiple recessed structures 21, at least some adjacent point structures have different convex and concave shapes. Figure 8 In this configuration, the multiple point structures include multiple first point structures and multiple second point structures, which are alternately arranged along a first cross-sectional direction 60 and along a second direction 50. The first point structures are convex structures 22, and the second point structures are groove structures 21. The first cross-sectional direction 60 intersects with the first direction 40 and the second direction 50. In other optional embodiments, the first cross-sectional direction 60 is parallel to the first direction 40. In other optional embodiments, the first cross-sectional direction 60 is parallel to the second direction 50. This can be configured according to actual conditions; such a configuration, through the alternating arrangement of convex structures 22 and groove structures 21, is more efficient than... Figure 7 The proposed solution diffuses light better, which is beneficial for the full mixing of light and helps to ensure uniform and high display brightness.

[0051] exist Figure 8In this embodiment, the positions of the multiple convex structures 22 and multiple groove structures 21 are, but are not limited to, the following implementations. In a first implementation, the multiple point structures are located on the side surface of the lens layer 10 facing the display functional layer, and at the junction of two adjacent lenses. The multiple point structures include multiple convex structures 22 and multiple groove structures 21. In a second implementation, the point structures are located on the side surface of the lens layer 10 away from the display functional layer, and at the junction of two adjacent lenses. The multiple point structures include multiple convex structures 22 and multiple groove structures 21. In a third implementation, the point structures are not located on the lens layer 10; only the projections of the multiple point structures onto the lens layer 10 overlap with the junction of two adjacent lenses. Specifically, the multiple point structures are located on the side surface of the display functional layer facing the lens layer 10, and the projections of the multiple point structures onto the lens layer 10 overlap with the junction of two adjacent lenses. The multiple point structures include multiple convex structures 22 and multiple groove structures 21. In the fourth embodiment, multiple dot structures are provided on both the side surface of the lens layer 10 facing the display functional layer and the side surface of the display functional layer facing the lens layer 10. These multiple dot structures include multiple convex structures 22 and multiple groove structures 21. The rational arrangement of these multiple dot structures facilitates light guiding, enabling the lens layer 10, combined with the multiple convex structures 22 and multiple groove structures 21, to integrate 3D display and light guiding functions. This results in more uniform incident light reflection and a more uniform reflective naked-eye 3D effect.

[0052] like Figure 8 As shown, the area corresponding to the boundary position of two adjacent prisms 11 is the first region 12. The distance between two adjacent point structures within the same first region 12 is greater than the distance between two adjacent point structures located in different first regions 12. In other words, the distance between two adjacent point structures corresponding to the boundary position of two adjacent prisms 11 in the same group is greater than the distance between two adjacent point structures corresponding to the boundary position of two adjacent prisms 11 in different groups. This arrangement makes the distribution density of point structures in the second direction 50 less than the distribution density of point structures in the first direction 40. By planning the distribution pattern of point structures, the distribution of point structures becomes more uniform and the periodicity more complex, thus avoiding situations where point structures are visible to the user and ensuring the 3D naked-eye display effect.

[0053] like Figure 9 As shown, Figure 9The illustrated embodiment provides a top view of a lens layer 10 of a display panel. The lens layer 10 includes multiple lenses, each of which is a prism 11. The prisms 11 are columnar and arranged sequentially along a first direction 40. All prisms 11 extend along a second direction 50, which is perpendicular to the first direction 40. The surface of each prism 11 away from the display functional layer is convex. This arrangement enables the lens layer 10 to function as a 3D prism layer in conjunction with the display functional layer, achieving 3D glasses-free display. Multiple dot structures are recessed structures 21. The boundary position of any group of adjacent prisms 11 corresponds to multiple recessed structures 21. The boundary positions of adjacent prisms 11 within the same group correspond to multiple recessed structures 21. Adjacent recessed structures 21 within the multiple recessed structures corresponding to the boundary positions of adjacent prisms 11 within the same group are spaced apart.

[0054] exist Figure 9 The arrangement of the multiple groove structures 21 includes four implementations. In the first implementation, the multiple groove structures 21 are located on the side surface of the lens layer 10 facing the display functional layer, and the groove structures are located at the junction of two adjacent lenses. In the second implementation, the multiple groove structures 21 are located on the side surface of the lens layer 10 away from the display functional layer, and the groove structures 21 are located at the junction of two adjacent lenses. In the third implementation, the multiple groove structures 21 are not provided on the lens layer 10, but only the projections of the multiple groove structures 21 on the lens layer 10 overlap with the junction of two adjacent lenses. In the fourth implementation, multiple groove structures 21 are provided on both the side surface of the lens layer 10 facing the display functional layer and the side surface of the display functional layer facing the lens layer 10. The rational arrangement of multiple groove structures 21 facilitates light guiding, enabling the lens layer 10 to integrate 3D display and light guiding functions with the multiple groove structures 21. This arrangement allows the multiple groove structures 21 to scatter incident light to the display functional layer, which then reflects the received light upwards in a Lambertian manner. The reflected light then passes through the lens layer 10 again to form a naked-eye 3D display effect. Furthermore, this front-light-based approach, compared to solutions relying solely on ambient light, achieves more uniform incident light reflection, resulting in a more uniform reflective naked-eye 3D effect.

[0055] like Figure 9As shown, at least some of the groove structures 21 are spaced apart along a third direction. In one optional embodiment of this application, the third direction is angled relative to the first direction 40; specifically, the third direction is parallel to the first direction 40. In another embodiment of this application, the third direction is angled relative to the second direction 50; specifically, the third direction is parallel to the second direction 50. In yet another embodiment of this application, the third direction is angled relative to both the first direction 40 and the second direction 50; specifically, the third direction is angled at an acute or obtuse angle relative to the first direction 40, and also at an acute or obtuse angle relative to the second direction 50. Here, the third direction may be the first cross-sectional direction 60 mentioned above.

[0056] like Figure 9 As shown, the area corresponding to the boundary position of two adjacent prisms 11 is the first region 12. The distance between two adjacent groove structures 21 within the same first region 12 is greater than the distance between two adjacent groove structures 21 located in different first regions 12. That is, the distance between two adjacent groove structures 21 corresponding to the boundary position of two adjacent prisms 11 in the same group is greater than the distance between two adjacent groove structures 21 corresponding to the boundary position of two adjacent prisms 11 in different groups. This arrangement makes the distribution density of groove structures 21 in the second direction 50 less than the distribution density of groove structures 21 in the first direction 40. By planning the distribution pattern of groove structures 21, the distribution of groove structures 21 is made more uniform and the periodicity is more complex, thereby avoiding the visibility of groove structures 21 to the user and ensuring the 3D naked-eye display effect.

[0057] exist Figures 1-3 In the specific embodiments shown in 5 and 6, the display functional layer is electronic paper 30. Electronic paper 30 is an electronic ink screen, and it is a bistable reflective display functional layer achieved by the electrically controlled movement of black and white particles within a capsule. When the dot structure is disposed on the display functional layer, the dot structure is located on the surface of the optical adhesive layer 31 facing the lens layer 10. The optical adhesive layer 31 is an OCA adhesive layer, and the material of the OCA adhesive layer is OCA optical adhesive. The electrode layer 32 is an encapsulation layer. The electrophoretic layer 33 can be a capsule containing black and white particles or a charge cavity containing charges. The substrate 34 is a TFT substrate. During processing, the electrode layer 32, the electrophoretic layer 33, and the substrate 34 are first assembled together to form a module, and then the module is bonded to the lens layer 10 using the optical adhesive layer 31.

[0058] It should be noted that the electrode layer 32 mentioned above is actually a common electrode. The common electrode, together with the substrate 34, can be matched with different forms of electrophoretic layer 33. The different forms of electrophoretic layer 33 include capsules with black and white particles and charge cavities with charges.

[0059] This application also provides a display device, referenced... Figure 10 As shown, the display includes a light source 80 and the aforementioned display panel, with the light source 80 located on the side of the display panel. The light source 80 emits light into the lens layer 10 of the display panel. The light source 80 serves as the light source for the electronic paper 30, enabling the electronic paper 30 to still display in dark conditions. Integrating the lens layer 10 and the electronic paper 30 together achieves a naked-eye 3D display effect. However, this arrangement leads to uneven distribution of incident light, resulting in reduced display brightness. Therefore, this application addresses this by setting a dot structure in the display panel, allowing the dot structure to scatter and diffuse the incident light in front of the electronic paper 30, thus acting as a light guide and ensuring uniform light distribution, thereby guaranteeing the brightness and brightness uniformity of the subsequent display.

[0060] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, include: Display functional layer; A lens layer is located on one side of the display surface of the display functional layer, and the lens layer includes multiple lenses; The point structure is a projection of the point structure onto the lens layer that overlaps with the boundary position of at least a portion of two adjacent lenses; the point structure includes multiple points, which are periodically distributed, and include a variety of points such as convex points and grooves, wherein at least a portion of two adjacent points have different convex and concave shapes. The point structure comprises multiple points, including multiple first point structures and multiple second point structures. The multiple first point structures and multiple second point structures are alternately arranged along the first cross-sectional direction. The first point structure is a convex point structure, and the second point structure is a groove structure. The lens is a prism, and the multiple prisms are arranged along a first direction and extend along a second direction. The first direction is perpendicular to the second direction, and the first cross-sectional direction intersects with the first direction and / or the second direction. The dot structure is located on the side surface of the lens layer away from the display functional layer, and the dot structure is located at the junction of two adjacent lenses; or the dot structure is located on the side surface of the lens layer facing the display functional layer, and the dot structure is located at the junction of two adjacent lenses; or the dot structure is located on the side surface of the display functional layer facing the lens layer.

2. The display panel according to claim 1, characterized in that, The junction of two adjacent lenses in the plurality of lenses corresponds to one or more of the point structures.

3. The display panel according to claim 1, characterized in that, The dot structure is a groove structure, and the groove structure is selectively filled with a filling part, the refractive index of the filling part being less than the refractive index of the lens layer.

4. The display panel according to claim 3, characterized in that, The difference in refractive index between the filling portion and the lens layer is greater than or equal to 0.2 and less than or equal to 0.

4.

5. The display panel according to any one of claims 1 to 4, characterized in that, The distance between any two adjacent point structures in a plurality of point structures is greater than 0 mm and less than or equal to 1 mm; and / or The point structure is hemispherical, and the diameter and height of the hemispherical point structure are both greater than 0 μm and less than or equal to 50 μm.

6. The display panel according to any one of claims 1 to 4, characterized in that, The display function layer includes electronic paper.

7. The display panel according to claim 6, characterized in that, The electronic paper sequentially comprises an optical adhesive layer, an electrode layer, an electrophoretic layer, and a substrate along a direction away from the lens layer. The dot structure is disposed on the display functional layer and is located on the side surface of the optical adhesive layer facing the lens layer.

8. A display device, characterized in that, include: light source; The display panel according to any one of claims 1 to 7, wherein the light source is located on the side of the display panel.

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