Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel includes: a display function layer; the lens layer is located on one side of the display surface of the display function layer, and the lens layer comprises a plurality of lenses; and the projection of the point structure on the lens layer is overlapped with the junction position of at least part of two adjacent lenses. The problem that in the prior art, a display panel is uneven in light distribution is solved.

Description

Technical Field

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

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

[0003] That is to say, the display panel in the prior art has the problem of uneven light distribution. Summary of the invention

[0004] The main purpose of the present invention is to provide a display panel and a display device to solve the problem of uneven light distribution in the display panel in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a display panel is provided, comprising: a display function layer; a lens layer, located on one side of the display surface of the display function layer, the lens layer comprising a plurality of lenses; and a dot structure, the projection of the dot structure on the lens layer overlapping with the junction position of at least part of two adjacent lenses.

[0006] According to another aspect of the present invention, there is further provided a display device, comprising: a light source; and the above-mentioned display panel, wherein the light source is located on a side of the display panel.

[0007] According to the technical solution of the present invention, the display panel includes a display function layer, a lens layer and a dot structure. The lens layer is located on one side of the display surface of the display function layer, and the lens layer includes a plurality of lenses. The projection of the dot structure on the lens layer overlaps with the junction position of at least two adjacent lenses. By setting the lens layer on one side of the display function layer and setting the lens layer to include a plurality of lenses, the lens layer cooperates with the display function layer to realize the display function. By setting the dot structure and planning the projection of the dot structure on the lens layer to overlap with the junction position of at least two adjacent lenses, the position of the dot structure corresponds to the junction position of at least two adjacent lenses, so that when the incident light of the external light source is incident on the dot structure, the dot structure can scatter the light, thereby avoiding the uneven distribution of the incident light caused by directly setting the lens layer and the display function layer together. The incident light is scattered by the dot structure, so that the light is fully mixed, which is conducive to increasing the uniformity of the light distribution, thereby ensuring the display brightness uniformity and high brightness display of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

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

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

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

[0012] Figure 4 A light path diagram of a lens layer of a display panel according to an optional embodiment of the present invention is shown;

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

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

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

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

[0017] Fig. 9 A top view of a display panel according to another alternative embodiment of the present invention is shown;

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

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

[0020] 10. Lens layer; 11. Prism; 12. First area; 20. Dot structure; 21. Groove structure; 22. Bump 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. Filling part; 80. Light source. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0023] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0024] In order to solve the problem of uneven light distribution in a display panel in the prior art, the present 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 the lens layer 10 includes a plurality of lenses; the projection of the dot structure on the lens layer 10 overlaps with the junction position of at least part of two adjacent lenses. By setting the lens layer 10 on one side of the display function layer and setting the lens layer 10 to include a plurality of lenses, the lens layer 10 is matched with the display function layer to realize the display function. By setting the dot structure, and planning the projection of the dot structure on the lens layer 10 to overlap with the junction position of at least part of two adjacent lenses, the position of the dot structure corresponds to the junction position of at least part of two adjacent lenses, so that when the incident light of the external light source is incident on the dot structure, the dot structure can scatter the light, thereby avoiding the uneven distribution of the incident light caused by directly setting the lens layer 10 and the display function layer together, and scattering the incident light through the dot structure, so that the light is fully mixed, which is conducive to increasing the uniformity of light distribution, thereby ensuring the display brightness uniformity and high brightness display of the display panel.

[0026] It should be noted that the above display function layer is a reflective display function layer. Figure 4 As shown, the incident light is emitted toward the cross section of the lens, and the incident light is refracted after entering the cross section of the lens. The refracted light is transmitted toward the display function layer, and then the display function layer transmits the received light in the form of reflection, and after passing through the lens layer 10 again, a naked eye 3D display effect can be formed. The cross section of the lens is the end faces on both sides of the lens. 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 there are two cases where the projection of the above-mentioned dot structure on the lens layer 10 overlaps with at least part of the boundary between two adjacent lenses. One is that the dot structure is arranged on the lens layer 10 and is located at the boundary between adjacent lenses; the other is that the dot structure is not arranged on the lens layer 10, but only the projection of the dot structure on the lens layer 10 overlaps with at least part of the boundary between two adjacent lenses, that is, the projection of the dot structure on the lens layer 10 at least partially covers the boundary between two adjacent lenses.

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

[0029] The display panel provided by the embodiment of the present application is introduced below. The following embodiment is only used as an example for illustration, but the embodiment of the present application is not limited thereto.

[0030] like Figure 1 As shown, Figure 1 The embodiment shown provides a display panel, which includes a display function layer, a lens layer 10 and a dot structure. The display function layer is an electronic paper. The electronic paper 30 includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33 and a substrate 34 in the direction away from the lens layer 10. The dot structure includes multiple dot structures, and the multiple dot structures are all arranged on the lens layer 10. The multiple dot structures are located on the surface of the lens layer 10 on one side facing the display function layer. The junction position of any group of adjacent two lenses in the multiple lenses is provided with a dot structure. The junction position of adjacent lenses in the same group corresponds to one or more dot structures. When the junction position of adjacent lenses in the same group corresponds to multiple dot structures, the adjacent two dot structures in the multiple dot structures are arranged at intervals. In this embodiment, the multiple dot structures are all groove structures 21. Such an arrangement can ensure the scattering effect of the multiple groove structures 21 on the incident light, which is conducive to the scattered light being able to stably enter the electronic paper 30, and is conducive to increasing the uniformity of the final output 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 multiple types of convex point structures 22 and groove structures 21. They can be set according to actual conditions. By reasonably planning the positions and shapes of the multiple point structures, it is helpful to ensure the uniformity of the distribution of the point structures, thereby ensuring the sufficiency of the point structures in diffusing incident light.

[0032] Specifically, the dot structure is hemispherical, and the diameter and height of the hemispherical dot structure are both greater than 0um and less than or equal to 50um. Specifically, the convex dot structure 22 is hemispherical, and the diameter and height of the hemispherical convex dot structure 22 are both greater than 0um and less than or equal to 50um. The groove structure 21 is hemispherical, and the diameter and depth of the hemispherical groove structure 21 are both greater than 0um and less than or equal to 50um. By reasonably constraining the size of the dot structure, it is helpful to ensure that the dot structure can scatter light while ensuring that the dot structure is small, so that when the display panel is observed on the side with the lens layer 10, the dot structure is invisible, thereby ensuring the 3D naked eye display effect.

[0033] like Figure 2 As shown, Figure 2 The embodiment shown provides a display panel, which includes a display function layer, a lens layer 10 and a dot structure. The display function layer is an electronic paper. The electronic paper 30 includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33 and a substrate 34 in order along the direction away from the lens layer 10. The dot structure includes multiple dot structures, and the multiple dot structures are located between the display function layer and the lens layer 10. A plurality of convex dot structures 22 are formed on the surface of the lens layer 10 facing the display function layer. The junction position of any two connected lenses is provided with a convex dot structure 22. The junction position of any group of adjacent two lenses in the multiple lenses is provided with a convex dot structure 22. The junction positions of adjacent lenses in the same group correspond to multiple convex dot structures 22, and the adjacent two convex dot structures 22 in the plurality of convex dot structures 22 corresponding to the junction positions of adjacent lenses in the same group are arranged at intervals.

[0034] Optionally, a plurality of groove structures 21 are formed on the surface of the display function layer facing the lens layer 10, specifically, a plurality of groove structures 21 are formed on the surface of the optical adhesive layer 31 facing the lens layer 10, and the plurality of groove structures 21 correspond to the plurality of convex point structures 22 one by one, that is, the number of convex point structures 22 is equal to the number of groove structures 21, and the plurality of convex point structures 22 are filled in the plurality of groove structures 21 one by one, and each groove structure 21 is filled with the corresponding convex point structure 22. This arrangement enables the plurality of point structures to include two of the convex point structures 22 and the groove structures 21, and through the cooperation of the convex point structures 22 and the groove structures 21, the superposition of the two can increase the scattering effect of light, so that the incident light can be fully diffused, thereby avoiding the situation of brightness concentration or display brightness reduction.

[0035] Optionally, a plurality of groove structures 21 may be formed on the surface of the lens layer 10 facing the display function layer, and the intersection of any two connected lenses is provided with a groove structure 21, and the intersection of adjacent lenses in the same group corresponds to the plurality of groove structures 21, and the adjacent two groove structures 21 in the plurality of groove structures 21 corresponding to the intersection of adjacent lenses in the same group are arranged at intervals. A plurality of convex structures 22 are formed on the surface of the display function layer facing the lens layer 10, specifically, a plurality of convex structures 22 are formed on the surface of the optical adhesive layer 31 facing the lens layer 10, and the plurality of groove structures 21 correspond to the plurality of convex structures 22 one-to-one, that is, the number of convex structures 22 is equal to the number of groove structures 21, and the plurality of convex structures 22 are filled in the plurality of groove structures 21 one-to-one, and each groove structure 21 is filled with the convex structure 22 corresponding thereto.

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

[0037] Optionally, the intersection of any two adjacent lenses may be provided with a groove structure 21 or a convex dot structure 22, but the present invention is not limited thereto. This arrangement is conducive to reducing the distribution density of the dot structure, making the dot structure less obvious on one side of the lens layer 10 while ensuring the scattering effect, thereby ensuring a better appearance.

[0038] Optionally, the multiple dot structures on the surface of the side of the lens layer 10 away from the display function layer can all be set as convex dot structures 22, or the multiple dot structures on the surface of the side of the lens layer 10 away from the display function layer include multiple convex dot structures 22 and groove structures 21. They can be set according to actual conditions. By reasonably planning the positions and shapes of the multiple dot structures, it is helpful to ensure the uniformity of the distribution of the dot structures, thereby ensuring the sufficiency of the dot structures in diffusing incident light.

[0039] like Figure 5 As shown, Figure 5The embodiment shown provides a display panel, which includes a display function layer, a lens layer 10 and a dot structure. The display function layer is an electronic paper. The electronic paper 30 includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33 and a substrate 34 in order along the direction away from the lens layer 10. The dot structure includes multiple dot structures, and the multiple dot structures are arranged on the lens layer 10. The multiple groove structures 21 are all arranged on the surface of the side of the lens layer 10 facing the display function layer, and the junction position of any two adjacent lenses is provided with multiple groove structures 21. The adjacent two groove structures 21 in the multiple groove structures 21 at the junction position of the same group of adjacent lenses are arranged at intervals. The groove structure 21 is selectively filled with a filling part 70, and the refractive index of the filling part 70 is less than the refractive index of the lens layer 10. The filling part 70 is a transparent material with a fixed refractive index. By arranging the filling part 70 in the groove structure 21, it is beneficial to control the morphological uniformity of the structure where the dot structure is located, and it can also prevent the entry of stains and avoid the generation of stray light. In this embodiment, a plurality of groove structures 21 are filled with a plurality of filling parts 70 in a one-to-one correspondence, the number of groove structures 21 is equal to the number of filling parts 70, and the surface of the filling part 70 facing the display function layer is flush with the surface of the lens layer 10 facing the display function layer, that is, the surface of the lens layer 10 facing the display function layer is a whole plane. This arrangement enables the filling part 70 to fill the groove structure 21, and because there is a refractive index difference between the filling part 70 and the lens layer 10, the morphology uniformity of the lens layer 10 can be ensured, stains can be prevented from entering, and the filling part 70 can be ensured to fully diffuse the incident light in combination with the groove structure 21, which is conducive to ensuring the uniformity of light distribution.

[0040] Optionally, some of the groove structures 21 among the plurality of groove structures 21 may be filled with a filling portion 70, while the other part may not be provided with a filling portion 70. In this case, the number of groove structures 21 filled with a filling portion 70 may be greater than, less than, or equal to the number of groove structures 21 not provided with a filling portion 70, and the location and number of the filling portion 70 may be adjusted according to actual needs, and are not limited thereto.

[0041] like Figure 6 As shown, Figure 6The embodiment shown provides a display panel, which includes a display function layer, a lens layer 10 and a dot structure. The display function layer is an electronic paper. The electronic paper 30 includes an optical adhesive layer 31, an electrode layer 32, an electrophoretic layer 33 and a substrate 34 in order along the direction away from the lens layer 10. The dot structure includes multiple groove structures 21, which are all arranged on the surface of the side of the lens layer 10 away from the display function layer, and multiple groove structures 21 are arranged at the junction position of any two adjacent lenses. The adjacent two groove structures 21 in the multiple groove structures 21 at the junction position of the same group of adjacent lenses are arranged at intervals. Multiple filling parts 70 are filled in the multiple groove structures 21 one by one, the number of the groove structures 21 is equal to the number of the filling parts 70, and the refractive index of the filling part 70 is less than the refractive index of the lens layer 10. By setting the filling part 70 and planning the 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 ensured and contamination by external dirt can be avoided; on the other hand, the filling part 70 can be combined with the groove structure 21 to achieve sufficient diffusion of the incident light, which is beneficial to ensure the uniformity of light distribution.

[0042] Optionally, some of the groove structures 21 among the plurality of groove structures 21 may be filled with a filling portion 70, while the other part may not be provided with a filling portion 70. In this case, the number of groove structures 21 filled with a filling portion 70 may be greater than, less than, or equal to the number of groove structures 21 not provided with a filling portion 70, and the location and number of the filling portion 70 may be adjusted according to actual needs, and are not limited thereto.

[0043] Specifically, the difference in refractive index between the filling part 70 and the lens layer 10 is greater than or equal to 0.2 and less than or equal to 0.4. Reasonable planning of the difference in refractive index between the filling part 70 and the lens layer 10 is conducive to ensuring the effect of light deflection by the filling part 70 and ensuring sufficient scattering.

[0044] like Figure 7 As shown, Figure 7 The embodiment shown provides a top view of a lens layer 10 of a display panel. The lens layer 10 includes a plurality of lenses, and the plurality of lenses are prisms 11, the prisms 11 are columnar, and the plurality of prisms 11 are arranged in sequence along a first direction 40, and the plurality of prisms 11 extend along a second direction 50, and the first direction 40 is perpendicular to the second direction 50. The surface of each prism 11 on one side away from the display function layer is a convex surface. This arrangement makes the lens layer 10 actually a 3D prism layer that can realize 3D naked eye display when combined with the display function layer. The plurality of dot structures are all convex structures 22, and the junction positions of any group of adjacent prisms 11 in the plurality of prisms 11 correspond to the plurality of convex structures 22, and the junction positions of adjacent prisms 11 in the same group correspond to the plurality of convex structures 22, and the adjacent two convex structures 22 in the plurality of convex structures 22 corresponding to the junction positions of adjacent prisms 11 in the same group are arranged at intervals.

[0045] exist Figure 7 In the embodiment, the setting positions of the multiple convex structures 22 include four embodiments. In the first embodiment, the multiple convex structures 22 are on the surface of the side of the lens layer 10 facing the display function layer, and the point structure is located at the junction of two adjacent lenses. In the second embodiment, the multiple convex structures 22 are located on the surface of the side of the lens layer 10 away from the display function layer, and the convex structure 22 is located at the junction of two adjacent lenses. In the third embodiment, the multiple convex structures 22 are not arranged on the lens layer 10, but the projection of the multiple convex structures 22 on the lens layer 10 overlaps with the junction of two adjacent lenses. The multiple convex structures 22 are located on the surface of the side of the display function layer facing the lens layer 10, and the projection of the multiple convex structures 22 on the lens layer 10 overlaps with the junction of two adjacent lenses. In the fourth embodiment, multiple convex structures 22 are arranged on the surface of the side of the lens layer 10 facing the display function layer and on the surface of the side of the display function layer facing the lens layer 10. The reasonable arrangement of multiple convex structures 22 is conducive to the light guiding of multiple convex structures 22, so that the lens layer 10 with multiple convex structures 22 can realize the integration of 3D display and light guiding, and it is conducive to multiple convex structures 22 to scatter the incident light to the display function layer, so that the display function layer reflects the light upward in the Lambertian light mode after receiving the light, and the reflected light passes through the lens layer 10 again to form a naked eye 3D display effect. In addition, such a method based on front light can achieve more uniform reflection of incident light compared to the solution relying only on ambient light source, and thus can obtain 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 200um and less than or equal to 300um. 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 arrangement makes the size of the dot structure smaller, and compared with the size of the lens, it is smaller, while ensuring the light guiding effect, it can avoid the situation where the dot structure is seen when observing from the side of the display panel with the lens layer 10. It should be noted that other embodiments of the present application all meet this parameter range.

[0047] like Figure 7As shown, multiple point structures are distributed periodically, and the distance between two adjacent point structures in the multiple point structures is greater than 0mm and less than or equal to 1mm. Specifically, the distance between two adjacent point structures in the multiple point structures corresponding to the intersection of two adjacent lenses in the same group is greater than 0mm and less than or equal to 1mm, and the distance between adjacent point structures corresponding to the intersection of two adjacent lenses in different groups is greater than 0mm and less than or equal to 1mm. This setting is conducive to regulating the distribution density of multiple point structures, thereby avoiding the situation where the arrangement density of the point structures is too large, so as to effectively balance the arrangement density and diffusion effect of the point structures. It should be noted that other embodiments of the present application all meet this parameter range.

[0048] like Figure 7 As shown, at least part of the point structures are spaced apart along the third direction. In an optional embodiment of the present application, the third direction is set at an angle to the first direction 40, specifically, the third direction is parallel to the first direction 40. In another embodiment of the present application, the third direction is set at an angle to the second direction 50, specifically, the third direction is parallel to the second direction 50. In another embodiment of the present application, the third direction is set at an angle to both the first direction 40 and the second direction 50, specifically, the third direction is set at an acute angle or an obtuse angle to the first direction 40, and the third direction is set at an acute angle or an obtuse angle to the second direction 50. The third direction here may be the first cross-sectional direction 60 below.

[0049] like Figure 7 As shown, the area corresponding to the intersection of two adjacent prisms 11 is the first area 12, and the distance between two adjacent convex structures 22 corresponding to the same first area 12 is greater than the distance between two adjacent convex structures 22 corresponding to different first areas 12. In other words, the distance between two adjacent convex structures 22 corresponding to the intersection of two adjacent prisms 11 of the same group is greater than the distance between two adjacent convex structures 22 corresponding to the intersection of two adjacent prisms 11 of different groups. This arrangement makes the distribution density of the convex structure 22 in the second direction 50 less than the distribution density of the convex structure 22 in the first direction 40, so that by planning the distribution law of the convex structure 22, the distribution of the convex structure 22 is more uniform and the period is more complex, thereby avoiding the situation where the convex structure 22 is visible 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 a plurality of lenses, each of which is a prism 11, and the prism 11 is columnar. The plurality of prisms 11 are arranged in sequence along a first direction 40, and the plurality of prisms 11 extend along a second direction 50, and the first direction 40 is perpendicular to the second direction 50. The surface of each prism 11 on one side away from the display function layer is a convex surface. The plurality of dot structures include a plurality of convex dot structures 22 and groove structures 21, and when both the convex dot structures 22 and the groove structures 21 are multiple, at least some of the adjacent two dot structures in the plurality of dot structures have different convex and concave shapes. Figure 8 In the embodiment, the plurality of dot structures include a plurality of first dot structures and a plurality of second dot structures, the plurality of first dot structures and the plurality of second dot structures are alternately arranged along the first cross-sectional direction 60, the plurality of first dot structures and the plurality of second dot structures are alternately arranged along the second direction 50, the first dot structure is a convex dot structure 22, and the second dot structure is a concave dot structure 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. It can be set according to actual conditions, and such a setting is compared with the alternating arrangement of the convex dot structure 22 and the concave dot structure 21. Figure 7 The solution in the embodiment has a better light diffusion effect, is conducive to full mixing of light, and is conducive to ensuring uniformity and high display brightness.

[0051] exist Figure 8In the embodiment, the arrangement positions of the multiple convex point structures 22 and the multiple groove structures 21 include but are not limited to the following embodiments. In the first embodiment, the multiple point structures are on the surface of the side of the lens layer 10 facing the display function layer and the point structure is located at the junction of two adjacent lenses, and the multiple point structures include multiple convex point structures 22 and multiple groove structures 21. In the second embodiment, the point structure is located on the surface of the side of the lens layer 10 away from the display function layer, and the point structure is located at the junction of two adjacent lenses, and the multiple point structures include multiple convex point structures 22 and multiple groove structures 21. In the third embodiment, the point structure is not arranged on the lens layer 10, and only the projection of the multiple point structures on the lens layer 10 overlaps with the junction of two adjacent lenses. Specifically, the multiple point structures are located on the surface of the side of the display function layer facing the lens layer 10, and the projection of the multiple point structures on the lens layer 10 overlaps with the junction of two adjacent lenses, and the multiple point structures include multiple convex point structures 22 and multiple groove structures 21. In the fourth embodiment, a plurality of dot structures are arranged on the surface of the lens layer 10 facing the display function layer and on the surface of the display function layer facing the lens layer 10, and the plurality of dot structures include a plurality of convex dot structures 22 and a plurality of groove structures 21. The reasonable arrangement of the plurality of dot structures is conducive to the light guiding of the plurality of dot structures, so that the lens layer 10, in combination with the plurality of convex dot structures 22 and the plurality of groove structures 21, can realize the integration of 3D display and light guiding functions, realize more uniform reflection of incident light, and thus obtain a more uniform reflective naked-eye 3D effect.

[0052] like Figure 8 As shown, the area corresponding to the intersection of two adjacent prisms 11 is the first area 12, and the distance between two adjacent dot structures corresponding to the same first area 12 is greater than the distance between two adjacent dot structures corresponding to different first areas 12. In other words, the distance between two adjacent dot structures corresponding to the intersection of two adjacent prisms 11 of the same group is greater than the distance between two adjacent dot structures corresponding to the intersection of two adjacent prisms 11 of different groups. This arrangement makes the distribution density of the dot structure in the second direction 50 less than the distribution density of the dot structure in the first direction 40, so that by planning the distribution law of the dot structure, the distribution of the dot structure is more uniform and the period is more complex, thereby avoiding the situation where the dot structure is visible to the user and ensuring the 3D naked eye display effect.

[0053] like Fig. 9 As shown, Fig. 9The embodiment shown provides a top view of a lens layer 10 of a display panel. The lens layer 10 includes a plurality of lenses, and the plurality of lenses are prisms 11, the prisms 11 are columnar, and the plurality of prisms 11 are arranged in sequence along a first direction 40, and the plurality of prisms 11 extend along a second direction 50, and the first direction 40 is perpendicular to the second direction 50. The surface of each prism 11 on one side away from the display function layer is a convex surface. This arrangement makes the lens layer 10 actually a 3D prism layer that can realize 3D naked eye display when combined with the display function layer. The plurality of point structures are groove structures 21, and the junction positions of any group of adjacent prisms 11 in the plurality of prisms 11 correspond to the plurality of groove structures 21, and the junction positions of adjacent prisms 11 in the same group correspond to the plurality of groove structures 21, and the adjacent two groove structures 21 in the plurality of groove structures 21 corresponding to the junction positions of adjacent prisms 11 in the same group are arranged at intervals.

[0054] exist Fig. 9 In the embodiment, the arrangement positions of the multiple groove structures 21 include four embodiments. In the first embodiment, the multiple groove structures 21 are on the side surface of the lens layer 10 facing the display function layer and the point structure is located at the junction of two adjacent lenses. In the second embodiment, the multiple groove structures 21 are located on the side surface of the lens layer 10 away from the display function layer, and the groove structures 21 are located at the junction of two adjacent lenses. In the third embodiment, the multiple groove structures 21 are not arranged on the lens layer 10, only the projection of the multiple groove structures 21 on the lens layer 10 overlaps with the junction of two adjacent lenses. The multiple groove structures 21 are located on the side surface of the display function layer facing the lens layer 10, and the projection of the multiple groove structures 21 on the lens layer 10 overlaps with the junction of two adjacent lenses. In the fourth embodiment, multiple groove structures 21 are arranged on both the side surface of the lens layer 10 facing the display function layer and the side surface of the display function layer facing the lens layer 10. The reasonable arrangement of multiple groove structures 21 is conducive to the light guiding of multiple groove structures 21, so that the lens layer 10 with multiple groove structures 21 can realize the integration of 3D display and light guiding, and it is conducive to multiple groove structures 21 to scatter the incident light to the display function layer, so that the display function layer reflects the light upward in the Lambertian light mode after receiving the light, and the reflected light passes through the lens layer 10 again to form a naked eye 3D display effect. In addition, such a method based on front light can achieve more uniform reflection of incident light compared to the solution relying only on ambient light source, and thus can obtain a more uniform reflective naked eye 3D effect.

[0055] like Fig. 9As shown, at least part of the groove structures 21 are spaced apart along the third direction. In an optional embodiment of the present application, the third direction is arranged at an angle with the first direction 40, specifically, the third direction is parallel to the first direction 40. In another embodiment of the present application, the third direction is arranged at an angle with the second direction 50, specifically, the third direction is parallel to the second direction 50. In another embodiment of the present application, the third direction is arranged at an angle with both the first direction 40 and the second direction 50, specifically, the third direction is arranged at an acute angle or an obtuse angle with the first direction 40, and the third direction is arranged at an acute angle or an obtuse angle with the second direction 50. The third direction here may be the first cross-sectional direction 60 above.

[0056] like Fig. 9 As shown, the area corresponding to the junction of two adjacent prisms 11 is the first area 12, and the distance between the two adjacent groove structures 21 corresponding to the same first area 12 is greater than the distance between the two adjacent groove structures 21 corresponding to different first areas 12. In other words, the distance between the two adjacent groove structures 21 corresponding to the junction of two adjacent prisms 11 of the same group is greater than the distance between the two adjacent groove structures 21 corresponding to the junction of two adjacent prisms 11 of different groups. This arrangement makes the distribution density of the groove structure 21 in the second direction 50 less than the distribution density of the groove structure 21 in the first direction 40, so that by planning the distribution law of the groove structure 21, the distribution of the groove structure 21 is more uniform and the period is more complex, thereby avoiding the situation where the groove structure 21 is visible to the user and ensuring the 3D naked eye display effect.

[0057] exist Figure 1-3 In the specific embodiments shown in FIGS. 5 and 6, the display function layer is an electronic paper 30. The electronic paper 30 is an electronic ink screen, and the electronic paper 30 is a bistable reflective display function layer realized by the electrically controlled movement of black and white particles in a capsule. When the dot structure is provided on the display function layer, the dot structure is located on the surface of the optical adhesive layer 31 on one side 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 with black and white particles, or a charge cavity with electric charge. 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 through the optical adhesive layer 31.

[0058] It should be noted that the electrode layer 32 is actually a common electrode. The common electrode cooperates with the substrate 34 to match electrophoretic layers 33 of different forms. The electrophoretic layers 33 of different forms include capsules with black and white particles and charge cavities with electric charges.

[0059] The present application also provides a display device, referring to Fig.10 As shown in , it includes a light source 80 and the above-mentioned display panel, and the light source 80 is located on the side of the display panel. The light source 80 is used to emit light to the lens layer 10 of the display panel. The light source 80 serves as the light source 80 of the electronic paper 30, so that the electronic paper 30 can still display in a dark field. The lens layer 10 and the electronic paper 30 are integrated together to achieve a naked-eye 3D display effect. However, such a setting will cause uneven distribution of incident light, thereby causing a decrease in display brightness. Therefore, the present application sets a dot structure in the display panel, so that the dot structure can scatter and diffuse the incident light in front of the electronic paper 30, thereby playing a role of light guiding, which is conducive to ensuring the uniformity of light distribution, and then ensuring the brightness and brightness uniformity of subsequent display.

[0060] Obviously, the embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

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

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A display panel, characterized in that: include: Display functional layer; A lens layer, located on one side of the display surface of the display function layer, the lens layer comprising a plurality of lenses; A dot structure, wherein a projection of the dot structure on the lens layer overlaps with a junction position of at least part of two adjacent lenses.

2. The display panel according to claim 1, characterized in that: The dot structures include multiple dot structures, and the multiple dot structures include one or more of convex dot structures and concave structures.

3. The display panel according to claim 1, characterized in that: The boundary positions of two adjacent lenses among the plurality of lenses correspond to one or more of the point structures.

4. The display panel according to claim 1, characterized in that: The dot structure is located on a surface of the lens layer away from the display function layer, and the dot structure is located at a junction of two adjacent lenses; or The dot structure is located on a surface of the lens layer facing the display function layer, and the dot structure is located at a junction of two adjacent lenses; or The dot structure is located on a surface of the display function layer facing the lens layer.

5. The display panel according to claim 1, characterized in that: When the dot structure is a groove structure, the groove structure is selectively filled with a filling portion, and the refractive index of the filling portion is lower than the refractive index of the lens layer.

6. The display panel according to claim 5, characterized in that: A 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.

7. The display panel according to claim 1, characterized in that: The dot structures include a plurality of dot structures, and the plurality of dot structures are distributed periodically. When the plurality of dot structures include a plurality of convex dot structures and concave dot structures, at least some of the adjacent two dot structures in the plurality of dot structures have different convex and concave shapes.

8. The display panel according to any one of claims 1 to 7, characterized in that: The distance between two adjacent dot structures in the plurality of dot structures is greater than 0 mm and less than or equal to 1 mm; and / or The dot structure is hemispherical, and the diameter and height of the hemispherical dot structure are both greater than 0um and less than or equal to 50um.

9. The display panel according to any one of claims 1 to 7, characterized in that: The display function layer includes electronic paper.

10. The display panel according to claim 9, characterized in that: The electronic paper includes an optical adhesive layer, an electrode layer, an electrophoretic layer and a substrate in sequence along a direction away from the lens layer. When the dot structure is arranged on the display function layer, the dot structure is located on a surface of the optical adhesive layer facing the lens layer.

11. The display panel according to any one of claims 1 to 7, characterized in that: The plurality of lenses are all prisms, and the plurality of prisms are arranged along a first direction and extend along a second direction, and the first direction is perpendicular to the second direction.

12. The display panel according to claim 11, characterized in that: At least part of the dot structures are distributed at intervals along a third direction, and the third direction is arranged at an angle to the first direction and / or the second direction.

13. The display panel according to claim 11, characterized in that: The area corresponding to the boundary position of two adjacent prisms is the first area, and the distance between two adjacent dot structures corresponding to the same first area is greater than the distance between two adjacent dot structures corresponding to different first areas.

14. The display panel according to claim 1, characterized in that: There are multiple dot structures, including multiple first dot structures and multiple second dot structures. The multiple first dot structures and the multiple second dot structures are alternately arranged along the first cross-sectional direction. The first dot structure is a convex dot structure, and the second dot structure is a groove structure.

15. The display panel according to claim 14, characterized in that: The lens is a prism, a plurality of the 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 the first direction and / or the second direction.

16. The display panel according to claim 14, characterized in that: The lens is a prism, and a plurality of the prisms are arranged along a first direction and extend along a second direction, the first direction is perpendicular to the second direction, the first cross-sectional direction is parallel to the first direction, or the first cross-sectional direction is parallel to the second direction.

17. The display panel according to claim 1, characterized in that: A convex structure is formed on one of the side surfaces of the lens layer facing the display function layer and the side surfaces of the display function layer facing the lens layer, and a groove structure is formed on the other of the side surfaces of the lens layer facing the display function layer and the side surfaces of the display function layer facing the lens layer, and the convex structure fills the groove structure.

18. A display device, characterized in that: include: light source; The display panel according to any one of claims 1 to 17, wherein the light source is located on a side of the display panel.

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