Grating structure and display device

Abstract

The invention discloses a grating structure and a display device, and relates to the technical field of display. The grating structure comprises a first substrate and a second substrate which are oppositely arranged; the lens units extend in the first direction and are arranged on the side, facing the first substrate, of the second substrate; the lens units and the first substrate are arranged at intervals; the liquid crystal material is filled between the lens unit and the first substrate; the multiple supporting units are distributed on the side, facing the second substrate, of the first substrate at intervals, the supporting units are in a strip shape and used for supporting the lens units, the extending direction of the supporting units intersects with the first direction, and the supporting stability of the supporting units is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display technology, and in particular to a grating structure and a display device. BACKGROUND

[0002] Nowadays, there is an increasing demand for stereoscopic display devices in the market. Among the many technologies for realizing three-dimensional stereoscopic display, naked-eye stereoscopic display is favored in the field of three-dimensional stereoscopic display because it does not require the viewer to wear glasses.

[0003] At present, the existing naked-eye stereoscopic display device still needs to be improved. SUMMARY

[0004] The purpose of the present application is to provide a grating structure and a display device.

[0005] The present application discloses a grating structure, comprising: a first substrate and a second substrate arranged oppositely; a plurality of lens units arranged on one side of the second substrate facing the first substrate, and arranged in sequence, each of the lens units extending along a first direction on the second substrate, the first direction being parallel to the first substrate; the lens units are arranged spaced apart from the first substrate; a liquid crystal material filled between the lens units and the first substrate; a plurality of support units distributed spaced apart on one side of the first substrate facing the second substrate, the support units being in strip shape and used for supporting the lens units, the extension direction of the support units intersecting the first direction; wherein at least one of the lens units is supported by at least two of the support units; the support unit includes two opposite side walls in the width direction, and the side walls far from the side edge of the first substrate are directly connected; or the support unit includes two opposite side walls in the width direction, and the support unit further includes a top surface connected between the two side walls, the top surface being a plane; or the support unit includes two opposite side walls in the width direction, and the support unit further includes a top surface connected between the two side walls, the top surface being a curved surface; the two opposite side walls are arranged obliquely, and the oblique directions are opposite.

[0006] In some optional embodiments, the cross section of the support unit in the extension direction of the support unit is in rectangular or trapezoidal shape.

[0007] In some alternative embodiments, the grating structure is used in a display device, the display device comprising a display panel disposed opposite to the grating structure; an angle between the first direction and a first reference direction is θ, an angle between an extension direction of the support unit and the first reference direction is α, a width of the lens unit is d, and an extension length x of the support unit is greater than or equal to d / cos(90 o – α – θ), and the first reference direction is the same as a pixel column direction of the display panel.

[0008] In some alternative embodiments, the support units are arranged in a matrix.

[0009] In some alternative embodiments, the support units have the same extension direction.

[0010] In some alternative embodiments, the support units in the same row have the same extension direction, the support units in adjacent two rows have different extension directions, the support units in adjacent two odd-numbered rows have the same extension direction, and the support units in adjacent two even-numbered rows have the same extension direction.

[0011] In some alternative embodiments, the support units in the same column have the same extension direction, the support units in adjacent two columns have different extension directions, the support units in adjacent two odd-numbered columns have the same extension direction, and the support units in adjacent two even-numbered columns have the same extension direction.

[0012] In some alternative embodiments, the support units in adjacent two rows are staggered, the support units in adjacent two odd-numbered rows are aligned, and the support units in adjacent two even-numbered rows are aligned.

[0013] In some alternative embodiments, the support units in adjacent two columns are staggered, the support units in adjacent two odd-numbered columns are aligned, and the support units in adjacent two even-numbered columns are aligned.

[0014] In some alternative embodiments, at least one lens unit is supported by at least three support units; for the support units supporting the same lens unit, an extension direction of an nth support unit is different from that of an (n+1)th support unit, and the extension direction of the nth support unit is the same as that of an (n+2)th support unit; n is an integer greater than or equal to 1.

[0015] In some alternative embodiments, a normal projection of the support unit on the first substrate is between a normal projection of a central axis of a qth lens unit on the first substrate and a normal projection of a central axis of a (q+2)th lens unit on the first substrate; q is an integer greater than or equal to 1.

[0016] In some optional embodiments, the refractive index of the support unit is the same as the refractive index of the lens unit.

[0017] In some optional embodiments, the height of the support unit is less than the height of the lens unit.

[0018] In some optional embodiments, for two adjacent lens units, one of which is supported by the support unit, the orthogonal projection of the central axis of the other lens unit on the first substrate is arranged staggered with the orthogonal projection of any support unit on the first substrate.

[0019] In some optional embodiments, the grating structure further comprises: an alignment layer arranged between the first substrate and the support unit.

[0020] The application also discloses a display device, comprising the grating structure and a display panel arranged on one side of the grating structure.

[0021] Compared with the related art, the grating structure of the application has the support unit in a strip shape and used for supporting the lens unit, so that space is provided for filling of the liquid crystal material; further, since the support unit is in a strip shape and the extension direction of the support unit intersects the first direction, the acting area between the support unit and the first substrate is increased, the acting force therebetween is increased, and the support stability of the support unit is enhanced.

[0022] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the specification. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings incorporated in the specification and forming a part thereof illustrate embodiments consistent with the specification and together with the specification serve to explain the principles of the specification.

[0024] Figure 1 A schematic view of the layout of the grating structure of the embodiment of the application in the thickness direction.

[0025] Figure 2 A schematic view of the lens unit and the support unit of the grating structure of the embodiment of the application.

[0026] Figure 3 A schematic view of the grating structure of the embodiment of the application.

[0027] Figure 4 A schematic view of the grating structure of the embodiment of the application. Figure 3 A schematic view of the support unit in the view 1 direction.

[0028] Figure 5 A schematic view of the grating structure of the embodiment of the application. Figure 3Schematic view of the central support unit in the view angle 2 direction.

[0029] Figure 6 As Figure 3 Schematic view of the central support unit in the view angle 1 direction.

[0030] Figure 7 As Figure 3 Schematic view of the central support unit in the view angle 1 direction.

[0031] Figure 8 As Figure 3 Schematic view of the central support unit in the view angle 1 direction.

[0032] Figures 9 to 13 Schematic view of the layout of the center line of the support unit and the central axis of the lens unit.

[0033] Fig. 1: first substrate; 2: alignment layer; 3: support unit; 301: side wall; 302: top surface; 4: liquid crystal material; 5: lens unit; 6: second substrate; f: first reference direction; CL1: central axis; CL2: center line. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments (or, “modes of implementation”) of the present application will be described clearly and completely below with reference to the accompanying drawings. In the following description, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0035] If the present embodiments involve terms indicating direction or position relationship (such as up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative position relationship, movement, etc. between components in a certain specific posture (as shown in the drawings); if the specific posture changes, the direction or position relationship will also change accordingly. In addition, the terms “first”, “second”, etc. in the present embodiments are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0036] The present mode of implementation provides a grating structure, which can be used in a display device. The display device can include a display panel. The grating structure can be arranged on the light-emitting side of the display panel. The display panel can be an OLED display panel, of course, but it can also be an LCD display panel, but it is not limited to this, and it can also be an LED display panel or a quantum dot display panel. By adjusting the grating structure, the display panel can be switched between 2D display mode and 3D display mode. For example, Figure 1 、 Figure 2 andFigure 3 The grating structure can include: a first substrate 1 and a second substrate 6 arranged oppositely; a plurality of lens units 5 arranged on a side of the second substrate 6 facing the first substrate 1, and sequentially arranged, each lens unit 5 extending along a first direction on the second substrate 6 (the first direction being the extension direction of the central axis CL1 of the lens unit 5), and the first direction being parallel to the first substrate 1; the lens units 5 are arranged spaced apart from the first substrate 1; Figure 3 a central axis CL1 of the lens unit 5 is shown, and the first direction is the extension direction of the central axis CL1), the first direction being parallel to the first substrate 1; the lens units 5 are arranged spaced apart from the first substrate 1; a liquid crystal material 4 filled between the lens units 5 and the first substrate 1; a plurality of support units 3 distributed spaced apart on a side of the first substrate 1 facing the second substrate 6, the support units 3 being strip-shaped and used for supporting the lens units 5, the extension direction of the support units 3 intersecting the first direction; and wherein at least one lens unit 5 is supported by at least two support units 3.

[0037] The grating structure of the embodiment of the present application, the support units 3 are strip-shaped and used for supporting the lens units 5, and thus arranged to provide space for filling the liquid crystal material 4; further, since the support units 3 are strip-shaped, the extension direction of the support units 3 intersects the first direction, which improves the acting area between the support units 3 and the first substrate 1, increases the acting force therebetween, and further enhances the support stability of the support units 3.

[0038] The grating structure of the embodiment of the present application will be described in detail as follows: The first substrate 1 can be a flat plate structure. The material of the first substrate 1 can be a transparent material, for example, glass, but the present disclosure does not make special limitations thereon. The second substrate 6 can be a flat plate structure. The material of the second substrate 6 can be a transparent material, for example, glass, but the present disclosure does not make special limitations thereon. The first substrate 1 and the second substrate 6 are arranged oppositely, i.e., the first substrate 1 and the second substrate 6 can be parallel or substantially parallel. The above-mentioned display panel can be arranged on a side of the first substrate 1 facing away from the second substrate 6, or the display panel can be arranged on a side of the second substrate 6 facing away from the first substrate 1.

[0039] The grating structure of the embodiment of the present application can further include a first electrode and a second electrode. The first electrode can be arranged on a side of the first substrate 1 facing the second substrate 6. The second electrode can be arranged on a side of the second substrate 6 facing the first substrate 1. One of the first electrode and the second electrode is a positive electrode, and the other is a negative electrode. In addition, a side of the first electrode facing the second substrate 6 can further be provided with an alignment layer 2 (see Figure 1). The material of the alignment layer 2 can include polyimide (PI), but the present disclosure is not particularly limited thereto. The support unit 3 described above can be arranged on the side of the alignment layer 2 facing the second substrate 6. Due to the strong force between the support unit 3 and the first substrate 1, the support unit 3 is not easy to deviate in the case of vibration of the display device, which can avoid scratching of the alignment layer 2 and problems in the orientation of liquid crystals at this position, prevent the local increase in crosstalk and uneven crosstalk in 3D display, and will not increase the screen crosstalk.

[0040] The plurality of lens units 5 are arranged on the second substrate 6, specifically, the plurality of lens units 5 are arranged on the side of the second substrate 6 facing the first substrate 1. Each lens unit 5 extends along the first direction on the second substrate 6, that is, the lens unit 5 is in the shape of a strip, that is, the orthogonal projection of the lens unit 5 on the second substrate 6 is in the shape of a strip. The first direction is parallel or substantially parallel to the first substrate 1. The first direction is parallel or substantially parallel to the second substrate 6. The display panel described above can include a plurality of pixel rows and a plurality of pixel columns. The first direction intersects the pixel row direction and intersects the pixel column direction (which is the same as the first reference direction f in FIG. 1). Figure 3

[0041] The width of the lens unit 5 can be 20 μm-10 cm, but the present disclosure is not limited thereto. The width of the lens unit 5 is the width of the orthogonal projection of the lens unit 5 on the second substrate 6 (the width direction is perpendicular to the first direction). The height of the lens unit 5 can be greater than or equal to 2 μm. The widths of the plurality of lens units 5 can be the same or substantially the same. The heights of the plurality of lens units 5 can be the same or substantially the same. The material of the lens unit 5 can include an organic material, such as resin, etc.

[0042] The lens unit 5 can be a convex lens structure, wherein the surface of the lens unit 5 facing away from the second substrate 6 is curved. Taking the lens unit 5 in the shape of a strip as an example, the cross section of the lens unit 5 can include a straight line segment and a curved line segment connected to both ends of the straight line segment. The cross section can be perpendicular to the first direction described above, the straight line segment is located on the side of the cross section of the lens unit 5 close to the second substrate 6, and the curved line segment is located on the side of the cross section of the lens unit 5 away from the second substrate 6.

[0043] The plurality of lens units 5 can be distributed in sequence, wherein the distribution direction of the plurality of lens units 5 intersects the first direction. Taking the lens unit 5 in the shape of a strip as an example, the plurality of lens units 5 can be arranged in parallel, and the distance between any two adjacent lens units 5 can be equal, for example, the distance between any two adjacent lens units 5 is equal to 0.

[0044] ​The aforementioned liquid crystal material 4 is filled between the lens unit 5 and the first substrate 1. When the first and second electrodes are de-energized, the refractive index of the liquid crystal material 4 is the same as or approximately the same as the refractive index of the lens unit 5. In this case, the grating structure allows the display device to be in 2D display mode. When the first and second electrodes are energized, the liquid crystal in the liquid crystal material 4 rotates, causing the refractive index of the liquid crystal to be less than the refractive index of the lens unit 5. In this case, the grating structure allows the display device to be in 3D display mode. Alternatively, when the first and second electrodes are energized, the refractive index of the liquid crystal material 4 is the same as or approximately the same as the refractive index of the lens unit 5. In this case, the grating structure allows the display device to be in 2D display mode; when the first and second electrodes are de-energized, the liquid crystal in the liquid crystal material 4 rotates, causing the refractive index of the liquid crystal to be less than the refractive index of the lens unit 5. In this case, the grating structure allows the display device to be in 3D display mode.

[0045] A support unit 3 is disposed on the first substrate 1, specifically on the side of the first substrate 1 facing the second substrate 6. The material of the support unit 3 may include a light-transmitting material, such as a photocurable material. The refractive index of the support unit 3 may be the same as or approximately the same as the refractive index of the lens unit 5. The support unit 3 is strip-shaped, and its extending direction intersects with the first direction. The extending direction of the support unit 3 is parallel to the first substrate 1. Figure 5 As shown, the cross-section of the support unit 3 in the extending direction of the support unit 3 (the cross-section direction is parallel to the extending direction, i.e.) Figure 3 (A schematic diagram from a mid-angle view in the 2nd direction) is rectangular or trapezoidal.

[0046] In one implementation, such as Figure 6 As shown, the support unit 3 includes two opposing sidewalls 301 in the width direction. The two sidewalls 301 are directly connected to the side away from the first substrate 1. That is, the cross-section of the support unit 3 (the cross-section is perpendicular to the extension direction of the support unit 3) is perpendicular to the extension direction of the support unit 3. Figure 3 The diagram (from the perspective of angle 1) is a triangle.

[0047] In another embodiment, such as Figure 4 As shown, the support unit 3 includes two opposing sidewalls 301 in the width direction. The support unit 3 also includes a top surface 302 connecting the two sidewalls 301, and the top surface 302 is planar. The two opposing sidewalls 301 are inclined in opposite directions, meaning the cross-section of the support unit 3 (perpendicular to the extension direction of the support unit 3) is trapezoidal; or, as... Figure 8 As shown, the two opposite sidewalls 301 are arranged in parallel and are perpendicular to the first substrate 1. That is, the cross-section of the support unit 3 (the cross-section is perpendicular to the extension direction of the support unit 3) is rectangular or square.

[0048] In yet another embodiment, as shown in FIG. 3, the support unit 3 comprises two opposite side walls 301 in the width direction, and a top surface 302 connected between the two side walls 301, wherein the top surface 302 is curved. The two opposite side walls 301 are arranged in opposite directions, or the two opposite side walls 301 are arranged in parallel and both are perpendicular to the first substrate 1. Figure 7

[0049] As shown in FIG. 4, the pixel column direction of the display panel is taken as the first reference direction f. The angle between the first direction (the extension direction of the central axis CL1) and the first reference direction f is θ, the angle between the extension direction of the central line CL2 of the support unit 3 (i.e. the direction of the view angle 1) and the first reference direction f is α, the width of the lens unit 5 is d (the width of the lens unit 5 is equal to the distance between the central axes CL1 of two adjacent lens units 5), and the extension length x of the support unit 3 is greater than or equal to M / 2. M is equal to 2d / cosβ, and β is equal to (90 o - α - θ), so M / 2 is equal to d / cos(90 o - α - θ). Figure 3 Figure 9 The width y of the support unit 3 (the width direction is perpendicular to the extension direction of the support unit 3) can be 5-20 μm. The height z of the support unit 3 (see FIG. 4) can be greater than or equal to 2 μm. The height of the support unit 3 is less than the height of the lens unit 5.

[0050] Figure 5

[0051] Figures 9 to 13 The central line CL2 of the support unit 3 is shown. The central line CL2 can be the central line of the orthographic projection of the support unit 3 on the first substrate 1, and the distribution of the support unit 3 is described by the central line CL2 of the support unit 3. As shown in FIG. 5, Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 The number of the support units 3 is multiple. The materials of different support units 3 can be the same. The shapes of different support units 3 can be the same. The heights of different support units 3 can be the same. The widths of different support units 3 can be the same. The lengths of different support units 3 can be the same. The multiple support units 3 are distributed at intervals on the first substrate 1, i.e. on the side of the first substrate 1 facing the second substrate 6. The height of the support unit 3 cannot be too small (too small and the space for the rotation of the liquid crystal molecules cannot be provided), and the height of the support unit 3 cannot be too large, so as to avoid occupying the space for the liquid crystal filling and affecting the uniformity of the liquid crystal. ​​​​​​​​

[0052] Multiple support units 3 can be arranged in rows and columns, meaning that multiple support units 3 include support units 3 in multiple rows and columns. Support units 3 in two adjacent rows are staggered, support units 3 in two adjacent odd-numbered rows are aligned, and support units 3 in two adjacent even-numbered rows are aligned. Support units 3 in two adjacent columns are staggered, support units 3 in two adjacent odd-numbered columns are aligned, and support units 3 in two adjacent even-numbered columns are aligned.

[0053] In one implementation, such as Figure 12 As shown, among the multiple support units 3, there are two support units 3 with different or intersecting extension directions. For example, support units 3 in the same row have the same extension direction, support units 3 in two adjacent rows have different extension directions, support units 3 in two adjacent odd-numbered rows have the same extension direction, and support units 3 in two adjacent even-numbered rows have the same extension direction; support units 3 in the same column have the same extension direction, support units 3 in two adjacent columns have different extension directions, support units 3 in two adjacent odd-numbered columns have the same extension direction, and support units 3 in two adjacent even-numbered columns have the same extension direction. At least one lens unit 5 is supported by at least three support units 3; for multiple support units 3 supporting the same lens unit 5, the nth support unit 3 has a different extension direction from the (n+1)th support unit 3, and the nth support unit 3 has the same extension direction from the (n+2)th support unit 3; n is an integer greater than or equal to 1. In another embodiment, the multiple support units 3 have the same or parallel extension directions.

[0054] The support unit 3 is in a strip shape for supporting the lens unit 5. The orthographic projection of the support unit 3 on the first substrate 1 can intersect with the central axis CL1 of the supported lens unit 5. For example, in the case that the cross section of the lens unit 5 is semicircular (the cross section is perpendicular to the extending direction of the lens unit 5), the central axis CL1 is parallel to the extending direction of the lens unit 5 and passes through the center of all cross sections. In the width direction of the lens unit 5, the central axis CL1 is located at the center of the lens unit 5. In addition, for a support unit 3 and the lens unit 5 supported by the support unit 3, the orthographic projection of the support unit 3 on the first substrate 1 is located within the orthographic projection of the lens unit 5 on the first substrate 1. In addition, the orthographic projection of any support unit 3 on the first substrate 1 is located between the orthographic projection of the central axis CL1 of the qth lens unit 5 on the first substrate 1 and the orthographic projection of the central axis CL1 of the (q+2)th lens unit 5 on the first substrate 1; q is an integer greater than or equal to 1; that is, one support unit 3 cannot support two lens units 5 at the same time. In other embodiments, one support unit 3 can support at least two lens units 5 at the same time. In addition, at least one lens unit 5 is supported by at least two support units 3. Further, for two adjacent lens units 5, one lens unit 5 is supported by a support unit 3, and the other lens unit 5 or the orthographic projection of the central axis CL1 of the other lens unit 5 on the first substrate 1 is arranged staggered with the orthographic projection of any support unit 3 on the first substrate 1; that is, for two adjacent lens units 5, one lens unit 5 is supported by a support unit 3, and the other lens unit is not supported by a support unit 3.

[0055] Embodiments of the present disclosure also provide a display device. The display device can include the above-mentioned grating structure and a display panel. The display device can include, but is not limited to, electronic paper, mobile phones, tablets, displays, notebooks, digital photo frames, navigation devices, and any product or component with display functions. It should be understood that the display device has the same beneficial effects as the grating structure provided by the foregoing embodiments.

[0056] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A grating structure, characterized by, The lens module comprises: a first substrate and a second substrate arranged oppositely; a plurality of lens units arranged on a side of the second substrate facing the first substrate and arranged in sequence, each of the lens units extending along a first direction on the second substrate, the first direction being parallel to the first substrate; the lens units are arranged spaced apart from the first substrate; a liquid crystal material filled between the lens units and the first substrate; a plurality of support units distributed spaced apart on a side of the first substrate facing the second substrate, the support units being in strip shape and used for supporting the lens units, the extending direction of the support units intersecting the first direction; wherein at least one of the lens units is supported by at least two of the support units; wherein the support unit comprises two opposite side walls in the width direction, the two side walls being directly connected away from the side edge of the first substrate; or the support unit comprises two opposite side walls in the width direction, the support unit further comprising a top surface connected between the two side walls, the top surface being a plane; or the support unit comprises two opposite side walls in the width direction, the support unit further comprising a top surface connected between the two side walls, the top surface being a curved surface; the two opposite side walls are arranged obliquely, and the oblique directions are opposite.

2. The grating structure of claim 1, wherein, The cross section of the support unit in the extending direction of the support unit is in rectangular or trapezoidal shape.

3. The grating structure of claim 1, wherein, The grating structure is used in a display device, the display device comprising a display panel disposed opposite the grating structure; an angle between the first direction and a first reference direction is θ, an angle between an extension direction of the support unit and the first reference direction is α, the first reference direction is the same as a pixel column direction of the display panel, a width of the lens unit is d, and an extension length x of the support unit is greater than or equal to d / cos(90 o – α – θ). The grating structure is used in a display device, the display device comprising a display panel disposed opposite the grating structure; an angle between the first direction and a first reference direction is θ, an angle between an extension direction of the support unit and the first reference direction is α, the first reference direction is the same as a pixel column direction of the display panel, a width of the lens unit is d, and an extension length x of the support unit is greater than or equal to d / cos(90 o – α – θ).

4. The grating structure of claim 1, wherein, The plurality of support units are arranged in rows and columns.

5. The grating structure of claim 4, wherein, The support units of adjacent two rows are arranged staggered, the support units of adjacent two odd-numbered rows are aligned, and the support units of adjacent two even-numbered rows are aligned; and / or The support units of adjacent two columns are arranged staggered, the support units of adjacent two odd-numbered columns are aligned, and the support units of adjacent two even-numbered columns are aligned.

6. The grating structure of claim 5, wherein, The extending directions of the plurality of support units are the same.

7. The grating structure of claim 5, wherein, The extending directions of the support units in the same row are the same, the extending directions of the support units in adjacent two rows are different, the extending directions of the support units in adjacent two odd-numbered rows are the same, and the extending directions of the support units in adjacent two even-numbered rows are the same.

8. The grating structure of claim 5, wherein, The extending directions of the support units in the same column are the same, the extending directions of the support units in adjacent two columns are different, the extending directions of the support units in adjacent two odd-numbered columns are the same, and the extending directions of the support units in adjacent two even-numbered columns are the same.

9. The grating structure of claim 1, wherein, At least one of the lens units is supported by at least three of the support units; for a plurality of the support units supporting the same lens unit, the extending direction of the nth support unit is different from that of the (n+1)th support unit, and the extending direction of the nth support unit is the same as that of the (n+2)th support unit; n is an integer greater than or equal to 1.

10. The grating structure of claim 1, wherein, For adjacent two of the lens units, one of the lens units is supported by the support units, and the orthogonal projection of the central axis of the other lens unit on the first substrate is arranged staggered with the orthogonal projection of any of the support units on the first substrate.

11. The grating structure of claim 1, wherein, A projection of the support unit on the first substrate is located between a projection of a central axis of the qth lens unit on the first substrate and a projection of a central axis of the (q+2)th lens unit on the first substrate; q is an integer greater than or equal to 1.

12. The grating structure of claim 1, wherein, The support unit has a same refractive index as the lens unit.

13. The grating structure of claim 1, wherein, The support unit has a height less than a height of the lens unit.

14. The grating structure of claim 1, wherein, The grating structure further comprises: An alignment layer disposed between the first substrate and the support unit.

15. A display device comprising: The grating structure comprises: The grating structure of any one of claims 1-14; A display panel disposed on one side of the grating structure.

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