CN113703184B

CN113703184B - Manufacturing method of lens grating

Info

Publication number: CN113703184B
Application number: CN202010440106.9A
Authority: CN
Inventors: 刁鸿浩; 黄玲溪
Original assignee: Beijing Ivisual 3D Technology Co Ltd
Current assignee: Beijing Ivisual 3D Technology Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2023-06-20
Anticipated expiration: 2040-05-22
Also published as: CN113703184A; WO2021233096A1; TW202144862A

Abstract

The application relates to the technical field of display and discloses a manufacturing method of a lens grating, which comprises the following steps: providing a substrate, wherein the substrate is provided with at least two lenses; at least one light shielding structure is formed on the substrate such that the at least one light shielding structure corresponds to an interface area of adjacent ones of the at least two lenses. According to the method, the light rays emitted to the lens grating are shielded by at least one shading structure formed on the substrate of the lens grating, so that the problem of error of the light ray projection positions of the sub-pixels caused by the irregular cross-section structure formed in the junction area between the adjacent lenses of the lens grating is solved, and the left-eye and right-eye image crosstalk can be reduced or eliminated.

Description

Manufacturing method of lens grating

Technical Field

The present application relates to the field of display technology, for example, to a method for manufacturing a lenticular lens.

Background

At present, the lens grating is widely applied to the 3D display, and the 3D display based on the lens grating enables a user to directly obtain a 3D viewing effect through left and right eyes without using 3D glasses.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: in the manufacturing process of the lens grating, due to the limitation of the precision of the manufacturing process, an irregular cross-sectional structure generated at the junction between two lenses of the lens grating is extremely easy to form a distortion area. When the light of the sub-pixel passes through the distortion region, the light is easily projected to the wrong position, and left-right eye image crosstalk is caused.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a manufacturing method of a lens grating, which aims to solve the technical problems of wrong light projection positions of sub-pixels and left-eye and right-eye image crosstalk caused by an irregular section structure generated at the junction between two lenses of the lens grating.

In some embodiments, a method for manufacturing a lens grating is provided, including:

providing a substrate, wherein the substrate is provided with at least two lenses;

at least one light shielding structure is formed on the substrate such that the at least one light shielding structure corresponds to an interface area of adjacent ones of the at least two lenses.

In some embodiments, forming at least one light shielding structure on the substrate includes:

providing an opening on the substrate corresponding to the boundary area of the adjacent lens in the at least two lenses;

and filling a shading material in the opening to form the shading structure.

In some embodiments, providing an opening on the substrate corresponding to an interface region of the adjacent one of the at least two lenses includes:

and the opening is arranged on the substrate along the thickness direction of the substrate, and corresponds to the boundary area of the adjacent lenses in the at least two lenses.

In some embodiments, disposing the opening along a thickness direction of the substrate includes:

the openings are arranged along one end of the substrate, which is away from the at least two lenses in the thickness direction of the substrate, so that the openings extend into the substrate, penetrate through the substrate, or extend into the corresponding lenses.

In some embodiments, filling the opening with a light shielding material includes:

completely filling the opening with a light shielding material; or alternatively, the process may be performed,

and filling a part of the opening with a shading material.

In some embodiments, after the opening is partially filled with the light shielding material, the method further includes:

and arranging a filling material on the surface of the shading material.

In some embodiments, the substrate is a monolithic substrate.

In some embodiments, the substrate is a partial substrate;

forming at least one light shielding structure on the substrate, including:

forming the shading structure on one surface of the part of the substrate, which is away from the at least two lenses;

after the substrate forms at least one light shielding structure, the method further comprises:

and a filling material is arranged on one surface of the part of the substrate, on which the shading structure is formed.

In some embodiments, the at least two lenses comprise at least one of a concave lens and a convex lens.

In some embodiments, the at least two lenses comprise at least one of a cylindrical lens and a spherical lens.

In some embodiments, the at least two lenses comprise the lenticular lens, the method further comprising:

and arranging part or all of the columnar lenses on the substrate in parallel.

In some embodiments, further comprising:

the length of the light shielding structure in the axial direction of the lenticular lens is set to be the same as the length of the lenticular lens in the axial direction.

In some embodiments, the at least two lenses comprise the spherical lens, the method further comprising:

and arranging part or all of the spherical lenses on the substrate in an array.

In some embodiments, further comprising:

and providing no gap or a gap between part or all of adjacent lenses in the at least two lenses.

The manufacturing method of the lens grating provided by the embodiment of the disclosure can realize the following technical effects:

the light rays emitted to the lens grating are shielded by at least one shading structure formed on the substrate of the lens grating, so that the problem of error light ray projection positions of the sub-pixels caused by distortion areas formed by irregular cross-section structures in the boundary areas between adjacent lenses of the lens grating is solved, and left-eye and right-eye image crosstalk can be reduced or eliminated.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic flow chart of a first embodiment of a method for manufacturing a lens grating according to an embodiment of the disclosure;

fig. 2 is a schematic cross-sectional structure of a substrate in a first embodiment of a method for manufacturing a lens grating according to an embodiment of the disclosure;

fig. 3 is a schematic cross-sectional structure of a lens in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure;

fig. 4 is a schematic cross-sectional structure of a concave lens in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure;

fig. 5 is a schematic cross-sectional view of a lens in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure;

fig. 6 is a schematic flow chart of forming a light shielding structure in a first embodiment of a method for manufacturing a lens grating according to an embodiment of the disclosure;

fig. 7A is a schematic cross-sectional view illustrating an opening formed in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure, the opening extending into an interior of a substrate;

fig. 7B is a schematic cross-sectional structure of an opening formed in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the disclosure, the opening penetrating through a substrate;

fig. 7C is a schematic cross-sectional structure of an opening formed in the first embodiment of the method for manufacturing a lenticular lens according to the embodiment of the disclosure, the opening extending into the corresponding lens;

fig. 8A is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a substrate is completely filled with a light shielding material;

fig. 8B is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening penetrating a substrate is completely filled with a light shielding material;

fig. 8C is a schematic cross-sectional structure diagram of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a corresponding lens is completely filled with a light shielding material;

fig. 8D is a schematic cross-sectional view of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a corresponding lens is completely filled with a light shielding material;

fig. 8E is a schematic cross-sectional view of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a corresponding lens is completely filled with a light shielding material;

fig. 9A is a schematic cross-sectional view of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an inner portion of a substrate is partially filled with a light shielding material;

fig. 9B is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which a light shielding material is partially filled in an opening penetrating a substrate;

fig. 9C is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which a light shielding material is partially filled in an opening extending to a corresponding lens;

fig. 10A is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure after a light shielding material is partially filled in an opening extending into a substrate;

fig. 10B is a schematic cross-sectional structure diagram of a first embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure after a light shielding material is partially filled in an opening penetrating a substrate;

fig. 10C is a schematic cross-sectional structure diagram of a lens grating according to a first embodiment of the present disclosure after a light shielding material is partially filled in an opening extending to a corresponding lens;

fig. 11 is a schematic cross-sectional view illustrating a light shielding layer formed on a portion of a substrate in a second embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure;

fig. 12 is a schematic cross-sectional view of a light shielding structure formed on a part of a substrate in a second embodiment of a method for manufacturing a lens grating according to an embodiment of the disclosure;

fig. 13 is a schematic cross-sectional view of a lens grating according to a second embodiment of the present disclosure after a light shielding structure is formed on a part of a substrate;

fig. 14 is a schematic diagram of an arrangement manner of forming lenticular lenses in the method for manufacturing a lenticular lens according to an embodiment of the disclosure;

FIG. 15 is a schematic diagram of another arrangement of lenticular lenses formed in the method for fabricating a lenticular lens according to an embodiment of the disclosure;

FIG. 16 is a cross-sectional view taken along line A-A of FIG. 14;

FIG. 17 is a schematic diagram of an arrangement of spherical lenses formed in a method for fabricating a lenticular lens according to an embodiment of the present disclosure;

FIG. 18 is a schematic diagram of another arrangement of spherical lenses formed in a method for fabricating a lenticular lens according to an embodiment of the present disclosure;

FIG. 19 is a schematic diagram of an arrangement of spherical lenses and lenticular lenses formed in a method of fabricating a lenticular lens according to an embodiment of the present disclosure;

FIG. 20 is a schematic diagram of an arrangement of gaps or gaps between some adjacent lenses in a plurality of lenses in a method for manufacturing a lenticular lens according to an embodiment of the present disclosure;

fig. 21 is a schematic diagram of another arrangement mode of gaps or gaps between part of adjacent lenses in a plurality of lenses in a method for manufacturing a lenticular lens according to an embodiment of the disclosure.

Reference numerals:

100: a substrate; 101: a lens; 1011: a lenticular lens; 1012: a spherical lens; 102: a light shielding structure; 103: an opening; 104: a filler material; 200: a portion of the substrate; 201: a light shielding layer; 202: a filler material; 300: a substrate.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

Referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure, where the method for manufacturing a lens grating includes:

s101, providing a substrate 100, wherein the substrate 100 is provided with at least two lenses 101.

S102, at least one light shielding structure 102 is formed on the substrate 100, such that the at least one light shielding structure 102 corresponds to the boundary area of the adjacent lenses 101 of the at least two lenses 101.

Referring to fig. 2, fig. 2 is a schematic cross-sectional structure of a substrate in a first embodiment of a method for manufacturing a lens grating according to an embodiment of the disclosure, and in some embodiments, the substrate 100 may be provided as a monolithic substrate.

In some embodiments, at least two lenses 101 may be fabricated using nanoimprint techniques: the material for manufacturing the lenses 101 is coated on the substrate 100, and at least two lenses 101 are formed by nano imprinting.

In some embodiments, at least two lenses 101 may also be made using a hot melt process: the material for manufacturing the lenses 101 is laid on the substrate 100, the material for manufacturing the lenses 101 is subjected to photolithography, the remaining part after the photolithography is heated, the shape of the lenses 101 is formed by the surface tension, and at least two lenses 101 are formed after cooling.

In some embodiments, at least two lenses 101 may also be fabricated by etching: a material layer for manufacturing the lenses 101 is laid on the substrate 100, photoresist is deposited on the material layer for manufacturing the lenses 101, photolithography is performed to form at least two shapes of the lenses 101, and the material layer of the lenses 101 is etched with the photoresist as a mask to form at least two lenses 101, and then the remaining photoresist is removed.

In some embodiments, the width of the plurality of light shielding structures 102 along the direction of arrangement of the lenses 101 may be set to eliminate stray light at the interface of adjacent lenses 101.

Optionally, the projection area of the light shielding structure 102 on the substrate 100 covers the junction area of the adjacent lenses 101, so that light rays emitted to the lens gratings can be effectively shielded, and the technical problem of crosstalk between left and right eye images caused by wrong light ray projection positions of sub-pixels in the junction area between the adjacent lenses 101 of the lens gratings due to the distorted area formed by the irregular cross-section structure is solved, so that the phenomenon of crosstalk between the left and right eye images is reduced or eliminated, and the display quality of the 3D image is improved.

In some embodiments, at least two lenses 101 disposed at the substrate 100 may include at least one of a concave lens and a convex lens.

Referring to fig. 3, fig. 3 is a schematic cross-sectional structure of a lens in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the disclosure, and in some embodiments, at least two lenses 101 disposed on a substrate 100 may include a convex lens.

Referring to fig. 4, fig. 4 is a schematic cross-sectional structure of a concave lens in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the disclosure, and in some embodiments, at least two lenses 101 disposed on a substrate 100 may include a concave lens.

Referring to fig. 5, fig. 5 is a schematic cross-sectional structure of a lens of a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure, where the lens is a combination of a concave lens and a convex lens, and in some embodiments, at least two lenses 101 disposed on a substrate 100 may include a combination of a convex lens and a concave lens.

Embodiments of the present disclosure will be described below mainly taking the example that the lens 101 may be a convex lens.

In some embodiments, the fabrication process of forming the light shielding structure 102 on the substrate 100 may include at least one of etching, filling, inkjet, imprinting, and screen printing.

Embodiments of the present disclosure will be described below with etching and filling as examples.

Referring to fig. 6, fig. 6 is a schematic flow chart illustrating formation of a light shielding structure in a first embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure, and in some embodiments, forming at least one light shielding structure 102 on a substrate 100 may include:

s301, an opening 103 is provided on the substrate 100 corresponding to a boundary region between adjacent lenses 101 of the at least two lenses 101.

S302, a light shielding material is filled in the opening 103 to form the light shielding structure 102.

In some embodiments, the light shielding material may include at least one of a light absorbing material and a light reflecting material. The type of the shading material can be determined according to actual process requirements and the like.

In some embodiments, the light shielding materials forming each light shielding structure 102 may be the same or different.

Referring to fig. 7A to 7C, providing the opening 103 on the substrate 100 corresponding to the boundary area of the adjacent lens 101 of the at least two lenses 101 may include:

an opening 103 is provided in the thickness direction of the substrate 100 corresponding to the boundary region of the adjacent lens 101 of the at least two lenses 101 on the substrate 100. Alternatively, providing the opening 103 in the thickness direction of the substrate 100 may include:

the openings 103 are provided along one end of the substrate 100 facing away from the plurality of lenses 101 in the thickness direction thereof, such that the openings 103 may extend to the inside of the substrate 100, or may penetrate the substrate 100, or may extend to the inside of the corresponding lenses 101.

Referring to fig. 7A, fig. 7A is a schematic cross-sectional structure of an opening formed in a first embodiment of a method for manufacturing a lenticular lens according to an embodiment of the present disclosure, wherein the opening extends into an interior of a substrate, and in some embodiments, an opening 103 is disposed along a thickness direction of the substrate 100 from one end of the substrate 100 facing away from a plurality of lenses 101, so that the opening 103 may extend into the substrate 100.

Referring to fig. 7B, fig. 7B is a schematic cross-sectional structure of an opening formed through a substrate in the first embodiment of the method for manufacturing a lens grating according to the embodiment of the disclosure, and in some embodiments, an opening 103 is disposed along a thickness direction of the substrate 100 from one end of the substrate 100 facing away from the plurality of lenses 101, so that the opening 103 may penetrate through the substrate 100.

Referring to fig. 7C, fig. 7C illustrates a schematic cross-sectional structure of forming an opening in the first embodiment of the method for manufacturing a lenticular lens according to the embodiments of the present disclosure, where the opening extends into the corresponding lens, and in some embodiments, the opening 103 is disposed along the thickness direction of the substrate 100 from one end of the substrate 100 facing away from the plurality of lenses 101, so that the opening 103 may extend into the corresponding lens 101.

In some embodiments, filling the opening 103 with a light shielding material may include:

completely filling the opening 103 with a light shielding material; or alternatively, the process may be performed,

the opening 103 is partially filled with a light shielding material.

Referring to fig. 8A, fig. 8A is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an inner portion of a substrate is completely filled with a light shielding material, in some embodiments, an opening 103 may extend into a substrate 100, and the opening 103 is completely filled with the light shielding material, so that a light shielding structure 102 may extend into the substrate 100.

Referring to fig. 8B, fig. 8B is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening 103 may penetrate through a substrate 100, and in some embodiments, the opening 103 may be completely filled with a light shielding material, and a light shielding structure 102 may penetrate through the substrate 100.

Referring to fig. 8C, fig. 8C is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a corresponding lens is completely filled with a light shielding material, in some embodiments, an opening 103 may extend to an interior of a corresponding lens 101, the opening 103 is completely filled with the light shielding material, and a formed light shielding structure 102 may extend to the interior of the lens 101. Alternatively, the projected area of the portion of the light shielding structure 102 extending into the lens 101 on the surface of the substrate 100 may be the same as the projected area of the portion of the light shielding structure 102 in the substrate 100 on the surface of the substrate 100.

Referring to fig. 8D, fig. 8D is a schematic cross-sectional structure diagram illustrating another method for manufacturing a lenticular lens according to the first embodiment of the disclosure, in which the opening extending to the interior of the corresponding lens is completely filled with the light shielding material, and in some embodiments, the projection area of the portion of the light shielding structure 102 extending into the lens 101 on the surface of the substrate 100 may be larger than the projection area of the portion of the light shielding structure 102 in the substrate 100 on the surface of the substrate 100.

Referring to fig. 8E, fig. 8E is a schematic cross-sectional structure of a lens grating according to a first embodiment of the method for manufacturing a lens grating according to the present disclosure, in which the opening extending to the interior of the corresponding lens is completely filled with a light shielding material, and in some embodiments, the projection area of the portion of the light shielding structure 102 extending into the lens 101 on the surface of the substrate 100 may be smaller than the projection area of the portion of the light shielding structure 102 in the substrate 100 on the surface of the substrate 100.

In some embodiments, the light shielding material of the portion of the light shielding structure 102 extending into the lens 101 may be the same as, or different from, the light shielding material of the portion of the light shielding structure 102 located within the substrate 100.

Referring to fig. 9A, fig. 9A is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to an interior of a substrate is partially filled with a light shielding material, and in some embodiments, an opening 103 may extend to an interior of a substrate 100, and the opening 103 is partially filled with the light shielding material to form a light shielding structure 102.

Referring to fig. 9B, fig. 9B is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening penetrating a substrate is partially filled with a light shielding material, and in some embodiments, an opening 103 may penetrate the substrate 100, and the opening 103 is partially filled with the light shielding material to form a light shielding structure 102.

Referring to fig. 9C, fig. 9C is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure, in which an opening extending to a corresponding lens is partially filled with a light shielding material, and in some embodiments, an opening 103 may extend into a corresponding lens 101, and the opening 103 is partially filled with the light shielding material to form a light shielding structure 102.

In some embodiments, after the opening 103 is partially filled with the light shielding material, it may include:

a filler 104 is provided on the surface of the light shielding material. Optionally, the filler material 104 may include at least one of: substrate material, lens material.

Referring to fig. 10A, fig. 10A illustrates a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure after a light shielding material is partially filled in an opening extending into a substrate, in some embodiments, an opening 103 may extend into an interior of a substrate 100, a light shielding material is partially filled in the opening 103, and a filling material 104 may be disposed on a surface of the light shielding material after the light shielding structure 102 is formed.

Referring to fig. 10B, fig. 10B is a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure after a light shielding material is partially filled in an opening penetrating a substrate, in some embodiments, an opening 103 may penetrate a substrate 100, and after the light shielding material is partially filled in the opening 103 to form a light shielding structure 102, a filling material 104 may be disposed on a surface of the light shielding material.

Referring to fig. 10C, fig. 10C illustrates a schematic cross-sectional structure of a lens grating according to a first embodiment of the present disclosure after a light shielding material is partially filled in an opening extending to a corresponding lens, in some embodiments, an opening 103 may extend to an interior of a corresponding lens 101, and after a light shielding structure 102 is formed by partially filling a light shielding material in the opening 103, a filling material 104 may be disposed on a surface of the light shielding material.

Referring to fig. 11-13, in some embodiments, the substrate provided may be a partial substrate 200.

In some embodiments, the fabrication process of forming the light shielding structure 102 on a portion of the substrate 200 may include at least one of etching, filling, inkjet, stamping, and screen printing.

Embodiments of the present disclosure are described below with etching as an example.

Referring to fig. 11, fig. 11 is a schematic cross-sectional structure of a portion of a substrate on which a light shielding layer is formed in a second embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure, and in some embodiments, forming at least one light shielding structure 102 on the substrate may include:

a light shielding material is coated on a surface of a portion of the substrate 200 facing away from at least two lenses 101 to form a light shielding layer 201.

Referring to fig. 12, fig. 12 is a schematic cross-sectional structure of a light shielding structure formed on a part of a substrate in a second embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure, in some embodiments, the light shielding layer 201 may be etched, and a portion of a surface of the part of the substrate 200 facing away from at least two lenses 101 corresponding to a boundary area of adjacent lenses 101 is reserved to form the light shielding structure 102.

In some embodiments, the light shielding material forming the light shielding layer 201 and the light shielding material of each light shielding structure 102 may be the same or different.

Referring to fig. 13, fig. 13 is a schematic cross-sectional structure of a filling material after forming a light shielding structure on a part of a substrate in a second embodiment of a method for manufacturing a lens grating according to an embodiment of the present disclosure, after forming at least one light shielding structure 102 on the substrate, the method may include:

a filler 202 is provided on one surface of the substrate 200 where the light shielding structure 102 is formed. Alternatively, the filler material 202 may comprise a substrate material.

In some embodiments, the plurality of lenses 101 disposed on the substrate 300 may include at least one of a lenticular lens 1011 and a spherical lens 1012, and the substrate 300 may be the above-described entire substrate (substrate 100) or a part of the substrate 200. Alternatively, the lenticular lens 1011 may include at least one of a lenticular concave lens, a lenticular convex lens, a combination of a lenticular concave lens and a lenticular convex lens. Alternatively, the spherical lens 1012 may include at least one of a spherical concave lens, a spherical convex lens, a combination of a spherical concave lens and a spherical convex lens. Alternatively, the plurality of lenses 101 may include at least one of a combination of a lenticular lens and a spherical convex lens, a combination of a lenticular lens and a spherical concave lens, and a combination of a lenticular lens and a spherical convex lens.

In some embodiments, whether lens 101 comprises a cylindrical lens 1011, a spherical lens 1012, or has other shapes, at least one curve of the surface of lens 101 may be macroscopically circular or non-circular, for example: elliptical, hyperbolic, parabolic, etc. Alternatively, at least one curve of the surface of the lens 101 may be microscopically in a non-circular shape such as a polygon. Alternatively, the shape of the lens 101 may be determined according to actual conditions such as process requirements, for example: the shape of the surface of the lens 101.

In some embodiments, the plurality of lenses 101 may include a lenticular lens 1011. Alternatively, some or all of the lenticular lenses 1011 may be arranged in parallel on the substrate 300.

Referring to fig. 14, fig. 14 is a schematic diagram illustrating an arrangement manner of forming lenticular lenses in the method for manufacturing a lenticular lens according to an embodiment of the disclosure, and in some embodiments, all lenticular lenses 1011 may be arranged in parallel.

Referring to fig. 15, fig. 15 is a schematic diagram illustrating another arrangement manner of forming the lenticular lenses in the method for manufacturing the lenticular lens grating according to the embodiment of the disclosure, and in some embodiments, part of the lenticular lenses 1011 may be arranged in parallel on the substrate 300. Optionally, the partial lenticular lenses 1011 may be arranged according to a preset direction, where the preset direction may include a direction having a preset included angle with an arrangement direction of the lenticular lenses 1011 arranged in parallel, and the setting of the preset included angle may be considered according to practical situations such as process requirements.

Referring to fig. 16, fig. 16 shows a cross-sectional view of fig. 14 along the line A-A, and in some embodiments, the length of the light shielding structure 102 along the axial direction of the lenticular lens 1011 may be set to be the same as the length of the lenticular lens 1011 in the axial direction. The length of the lenticular lens 1011 in the axial direction and the arrangement of the length of the light shielding structure 102 in the axial direction of the lenticular lens 1011 can be considered according to the actual situation of the process demand or the like.

In some embodiments, the plurality of lenses 101 may include spherical lenses 1012. Alternatively, some or all of the spherical lenses 1012 may be arranged in an array on the substrate 300.

Referring to fig. 17, fig. 17 is a schematic diagram illustrating an arrangement manner of forming spherical lenses in the method for manufacturing a lens grating according to an embodiment of the disclosure, and in some embodiments, all spherical lenses 1012 may be arranged in an array on a substrate 300.

Referring to fig. 18, fig. 18 is a schematic diagram illustrating another arrangement mode of forming spherical lenses in the method for manufacturing a lens grating according to an embodiment of the disclosure, and in some embodiments, a part of spherical lenses 1012 may be arranged in an array on a substrate 300.

Alternatively, the number of spherical lenses 1012 and the spatial arrangement on the substrate 300 may be determined according to the actual conditions such as process requirements.

Referring to fig. 19, fig. 19 is a schematic diagram showing an arrangement manner of forming spherical lenses and lenticular lenses in the method for manufacturing a lenticular lens according to the embodiment of the disclosure, in some embodiments, a plurality of lenses 101 disposed on a substrate 300 may include lenticular lenses 1011 and spherical lenses 1012, all the lenticular lenses 1011 may be arranged in parallel on the substrate 300, and all the spherical lenses 1012 may be arranged in an array on the substrate 300. Alternatively, all the cylindrical lenses 1011 may be arranged in parallel on the substrate 300, and part of the spherical lenses 1012 may be arranged in an array on the substrate 300. Alternatively, part of the cylindrical lenses 1011 may be arranged in parallel on the substrate 300, and all the spherical lenses 1012 may be arranged in an array on the substrate 300. Alternatively, part of the cylindrical lenses 1011 may be arranged in parallel on the substrate 300, and part of the spherical lenses 1012 may be arranged in an array on the substrate 300. The number of the lenticular lenses 1011 and the spherical lenses 1012 and the spatial position arrangement on the substrate 300 may be determined according to the actual conditions of the process requirements and the like.

In some embodiments, some or all of the lenses 101 may be disposed without gaps, or with gaps, between adjacent lenses 101. Alternatively, referring to fig. 3, 4, 5, and 7A to 13, no gap between all adjacent lenses 101 among the plurality of lenses 101 may be provided.

Referring to fig. 20, fig. 20 is a schematic diagram showing an arrangement manner of no gaps or gaps between part of adjacent lenses in a plurality of lenses in the method for manufacturing a lenticular lens according to the embodiment of the disclosure, where the gaps or gaps between the part of adjacent lenses 101 in the plurality of lenses 101 may be provided.

Referring to fig. 21, fig. 21 is a schematic diagram illustrating another arrangement manner of no gap or a gap between some adjacent lenses in the plurality of lenses in the method for manufacturing a lenticular lens according to the embodiment of the disclosure, where no gap or a gap between some adjacent lenses 101 in the plurality of lenses 101 may be provided.

According to the manufacturing method of the lens grating, the light rays emitted to the lens grating are shielded by the at least one shading structure formed on the substrate of the lens grating, the problem of error of light ray projection positions of the sub-pixels due to the irregular cross-section structure formed in the junction area between the adjacent lenses of the lens grating is solved, left-eye image crosstalk and right-eye image crosstalk can be reduced or eliminated, and therefore the display quality of 3D images projected through the junction area is improved.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments of the present disclosure encompasses the full ambit of the claims, as well as all available equivalents of the claims. When used in this application, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, without changing the meaning of the description, and, similarly, a second element could be termed a first element, provided that all occurrences of "first element" are renamed consistently and all occurrences of "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such element. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may use different methods for each particular application to achieve the described functionality, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the working processes of the systems, apparatuses and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements may be merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the drawings, the width, length, thickness, etc. of structures such as elements or layers may be exaggerated for clarity and description. When an element or layer or the like is referred to as being "disposed" or "on" another element or layer (or "mounted" or "disposed" or "attached" or "coated" or the like), the element or layer or the like can be directly "disposed" or "on" the other element or layer, or intervening elements or layers may be present between the element or layer and the like, even with a portion thereof embedded therein.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. The manufacturing method of the lens grating is characterized by comprising the following steps:

providing a substrate, wherein the substrate is provided with at least two lenses, and gaps are reserved between adjacent lenses in the at least two lenses;

forming at least one light shielding structure inside at least the substrate such that the at least one light shielding structure corresponds to an interface area of adjacent ones of the at least two lenses;

the shading structures are in one-to-one correspondence with the junction areas.

2. The method of claim 1, wherein forming at least one light shielding structure on the substrate comprises:

and filling a shading material in the opening to form the shading structure.

3. The method of claim 2, wherein providing an opening on the substrate corresponding to an interface area of the adjacent one of the at least two lenses comprises:

4. A method according to claim 3, wherein disposing the opening in a thickness direction of the substrate comprises:

5. The method of claim 2, wherein filling the openings with a light shielding material comprises:

and filling a part of the opening with a shading material.

6. The method of claim 5, further comprising, after the opening is partially filled with a light shielding material:

and arranging a filling material on the surface of the shading material.

7. The method of any one of claims 1 to 6, wherein the substrate is a monolithic substrate.

8. The method of claim 1, wherein the substrate is a partial substrate;

forming at least one light shielding structure on the substrate, including:

9. The method of claim 1, wherein the at least two lenses comprise at least one of a concave lens and a convex lens.

10. The method of claim 9, wherein the at least two lenses comprise at least one of a lenticular lens and a spherical lens.

11. The method of claim 10, wherein the at least two lenses comprise the lenticular lens, the method further comprising:

and arranging part or all of the columnar lenses on the substrate in parallel.

12. The method as recited in claim 11, further comprising:

13. The method of claim 10, wherein the at least two lenses comprise the spherical lens, the method further comprising:

and arranging part or all of the spherical lenses on the substrate in an array.