Lens substrate, lens and display device
By designing the guide structure on the lens substrate, the problem of uneven frames caused by the delay in the printing needle glue output is solved, and the lens frame height consistency and design aesthetics are improved.
Patent Information
- Application Number
- CN202510572706.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-06-13
AI Technical Summary
In the prior art, due to the signal delay of the air pressure drive method, the printing needle is delayed, resulting in uneven thickness of the 3D Lens frame, affecting the design aesthetics and display effect of naked-eye 3D display products.
A lens substrate is designed, including an effective lens area and a virtual lens area, the fixing units are arranged in the first direction, and arranged from dense to sparse in the second direction in the virtual lens area to form a guide structure so that the excess rubber material is spread along the gap to avoid the residual frame.
Through the design of this lens substrate, the high consistency of the lens frame is improved, the consistency of the placement distance between the 2D display screen and the lens is narrowed, and the design aesthetics of the naked-eye 3D display product is improved.
Smart Images
Figure CN120143318A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of display technology, and particularly relates to a lens substrate, a lens, and a display device. Background Art
[0002] Direct writing printing technology has been widely applied in the production process of 3D lenses. The direct writing printing technology controls the glue output of the printing needle through air pressure drive. Compared with the pressure control method, there is a certain signal delay in the air pressure drive method. In the actual process, due to the signal delay, after the printing needle receives the pressure control stop signal, there will still be a period of glue output. Correspondingly, in the naked-eye 3D display product, it is manifested as uneven thickness of the 3D lens border, and further manifested as poor consistency in the placement distance between the 2D (two-dimensional) display screen and the 3D lens. It is also manifested as a relatively wide 3D lens border, which affects the design aesthetics of the naked-eye 3D display product. Summary of the Invention
[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a lens substrate, a lens, and a display device, which can improve the height consistency of the lens border, and further improve the consistency of the placement distance between the 2D display screen and the lens. At the same time, it can narrow the lens border, and further improve the design aesthetics of the naked-eye 3D display product.
[0004] In a first aspect, this application provides a lens substrate, including: an effective lens area and a virtual lens area;
[0005] The lens substrate further includes a substrate, a plurality of fixing units disposed on the substrate, and at least two sealing edges. There is a gap between any adjacent fixing units. The effective lens area refers to the area between two opposite sealing edges. The virtual lens area refers to the other areas on the lens substrate except the effective lens area;
[0006] In the effective lens area, the fixing units are arranged along a first direction, and both ends of the fixing units are connected to the sealing edges. The first direction is parallel to the substrate and perpendicular to the central axis of the fixing unit;
[0007] In the virtual lens area, the fixing units are arranged along the first direction, and along a second direction, the plurality of fixing units are divided into at least two gradient areas. In different gradient areas, the fixing units have different densities, and the density of the fixing units gradually decreases along the second direction. The second direction is parallel to the substrate and extends away from the sealing edge.
[0008] In some embodiments, in the gradient area closest to the sealing edge, the fixing unit has a first density m 1, in the effective lens region, the fixing unit has a second density m 2 , where m 1 > m2.
[0009] In some embodiments, the fixing unit is formed by a first buffer layer and a defining layer provided on the substrate. The first buffer layer is provided on the substrate, and the defining layer is provided on a side of the first buffer layer away from the substrate.
[0010] In some embodiments, in each of the gradient regions, a plurality of adhesive layer anchor points arranged along a first direction are further provided on the substrate.
[0011] In some embodiments, in the virtual lens region on the substrate, a plurality of the adhesive layer anchor points are further arranged from dense to sparse along the second direction.
[0012] In some embodiments, the adhesive layer anchor points are formed by a second buffer layer provided on the substrate.
[0013] In some embodiments, in the same gradient region, the area of a single fixing unit is larger than the area of a single adhesive layer anchor point.
[0014] In some embodiments, the fixing unit in the virtual lens region at least has a first arc portion, and the first arc portion can guide the adhesive material to flow along the second direction on the substrate.
[0015] In some embodiments, in the effective lens region, when the sealing edges connected to both ends of the fixing unit are only opposite sealing edges, the fixing unit is perpendicular to the connected sealing edges, and the sealing edges are continuously arranged.
[0016] In some embodiments, in the effective lens region, when part of the sealing edges connected to both ends of the fixing unit are opposite sealing edges, the fixing unit is perpendicular to the connected sealing edges, and the sealing edges are intermittently arranged or continuously arranged.
[0017] In a second aspect, the present application provides a lens, which includes: an adhesive material part and the lens substrate as described in the first aspect. The adhesive material part is provided in the printing area of the substrate, and the printing area of the substrate is an area where the fixing unit is not provided.
[0018] In a third aspect, the present application provides a display device, including the lens as described in the second aspect.
[0019] The lens substrate according to the present application includes a substrate, a plurality of fixing units disposed on the substrate, and at least two sealing edges, and there is a gap between any two adjacent fixing units. When 3D direct writing printing is performed based on the lens substrate of the present application, the printing glue flows in the gap between the fixing units. The area between two opposite sealing edges is the effective lens area of the lens. In the virtual lens area, the plurality of fixing units are arranged in a first direction and are divided into at least two gradient regions in a second direction.
[0020] In different gradient regions, the fixing units have different densities. And the density of the fixing units gradually decreases along the second direction. Such a structure causes the gap between the fixing units to change from narrow to wide along the second direction. Therefore, even if the printing needle still ejects glue for a period of time after receiving the voltage-controlled stop signal, using the characteristics of the glue material itself, the excess ejected glue will spread directionally along the gaps arranged from narrow to wide, thereby avoiding the residue of the excess glue material at the frame. Furthermore, it avoids uneven thickness and wide frame of the lens frame, improves the height consistency of the lens frame, and further improves the placement distance consistency between the 2D display screen and the lens. At the same time, it can narrow the lens frame, thereby enhancing the product design aesthetics of the naked-eye 3D display.
[0021] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0023] Figure 1 is a schematic top view of a lens substrate provided by the related art;
[0024] Figure 2 is a schematic top view of a lens substrate provided by an embodiment of the present application;
[0025] Figure 3 is a schematic cross-sectional view of a lens provided by an embodiment of the present application;
[0026] Figure 4 is a schematic top view of another lens substrate provided by an embodiment of the present application;
[0027] Figure 5 is a schematic top view of another lens substrate provided by an embodiment of the present application;
[0028] Figure 6 is a schematic top view of a fixing unit provided by an embodiment of the present application;
[0029] Figure 7Schematic top view of the glue layer anchor points provided by the embodiments of the present application;
[0030] Figure 8 Schematic top view of the combination of the fixing unit and the glue layer anchor points provided by the embodiments of the present application;
[0031] Figure 9 Schematic top view of another lens substrate provided by the embodiments of the present application;
[0032] Figure 10 Schematic top view of another lens substrate provided by the embodiments of the present application. Detailed implementation manners
[0033] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.
[0034] Unless otherwise specified, the front-back direction in the present application is the longitudinal direction of the lens substrate, i.e., the Y direction; the left-right direction is the transverse direction of the lens substrate, i.e., the X direction; and the up-down direction is the vertical direction of the lens substrate, i.e., the Z direction.
[0035] The direct writing printing technology controls the glue output of the printing needle through pneumatic drive. Compared with the pressure control method, there is a certain signal delay in the pneumatic drive method. In the actual process, due to the signal delay, after the printing needle receives the pressure control stop signal, there will still be a period of glue output. Correspondingly, in the naked-eye 3D display product, it is manifested as uneven thickness of the 3D Lens border, and further manifested as poor consistency in the placement distance between the 2D (two-dimensional) display screen and the 3D Lens, and also manifested as a wider border of the 3D Lens, which affects the design aesthetics of the naked-eye 3D display product.
[0036] Figure 1 Schematic top view of the lens substrate provided by the related technology. Figure 1 The shown lens substrate includes an effective lens area and a virtual lens area. The lens substrate further includes a substrate 10, a plurality of fixing units 20 provided on the substrate 10, and at least two sealing edges 30 provided on the substrate 10. There is a gap between two adjacent fixing units 20.
[0037] Figure 1 The area between two opposite sealing edges 30 on the shown substrate 10 is the effective lens area. In the effective lens area, a plurality of fixing units 20 are arranged along the first direction X, and both ends of the fixing unit 20 are connected to the side surfaces of the sealing edge 30. The first direction X is parallel to the substrate 10 and perpendicular to the central axis of the fixing unit 20.
[0038] Based on Figure 1 When performing a direct writing and printing lens production process on the lens substrate shown, due to signal delay, when printing at the position of the sealing edge 30, the controller will send a voltage-controlled stop signal to the printing needle head to stop the printing needle head from discharging glue. However, due to signal delay, the printing needle head will still discharge glue for a period of time after receiving the voltage-controlled stop signal. The excess glue accumulates and remains at the sealing edge 30, resulting in uneven thickness of the sealing edge 30 and a relatively wide width of the sealing edge 30. Based on Figure 1 The lens produced based on the lens substrate shown is applied to a display product, and the consistency of the placement distance between the display screen and the lens on the surface is relatively poor, and it affects the design aesthetics of the display product.
[0039] In view of this, the present application provides a lens substrate, a lens and a display device, which can reduce the accumulation and residue of glue at the sealing edge, improve the height consistency of the lens frame, and further improve the consistency of the placement distance between the display screen and the lens. At the same time, it can narrow the lens frame, and further improve the design aesthetics of the naked-eye display product.
[0040] In a first aspect, an embodiment of the present application provides a lens substrate, Figure 2 which is a schematic top view of a lens substrate provided by an embodiment of the present application. As Figure 2 shown, the lens substrate includes a substrate 100, a plurality of fixing units 200 provided on the substrate 100, and a sealing edge 300 provided on the substrate 100. There is a gap between two adjacent fixing units 200. During the three-dimensional printing process of the lens, the fixing units 200 can restrict the flow of the glue, and at the same time, the glue can flow in the gap between the fixing units 200 and spread out.
[0041] Figure 3 which is a schematic cross-sectional view of a lens provided by an embodiment of the present application. Figure 3 The lens shown is a lens formed after printing glue based on Figure 2 the lens substrate shown. As Figure 3 shown, the substrate 100 is located at the bottom layer, and a plurality of fixing units 200 are provided on the substrate. The fixing units 200 can restrict the glue from flowing in the two directions away from the two sides of the fixing units 200, and at the same time, the glue can flow along the directions parallel to the two sides of the fixing units 200. After printing glue on the lens substrate, the lens shown in Figure 3 is obtained.
[0042] In addition, during the flow process of the glue when printing the glue, the glue can spread through the sealing edge 300 in the direction of the inner area away from the sealing edge 300. That is to say, when printing the glue, the glue will not only flow and spread in the inner area of the sealing edge 300, but can also break through the restriction of the sealing edge 300 and flow and spread in the outer area of the sealing edge 300. As Figure 2As shown, the area within the dashed box is the AA area (active area) of the lens substrate, and the area between the edge seal 300 and the AA area is the optical transition area.
[0043] It should be noted that the substrate 100 in the embodiments of the present application can be a glass substrate or a substrate of a polymer material, and the present application does not limit the material of the substrate. The fixing unit 200 can be a structure added on the basis of the substrate 100 or a structure generated by an etching process on the basis of the substrate 100. The present application does not limit the generation method of the fixing unit 200. Similarly, the edge seal 300 can be a structure added on the basis of the substrate 100 or a structure generated by an etching process on the basis of the substrate 100. The present application does not limit the generation method of the edge seal 300.
[0044] In the embodiments of the present application, the area within the two opposite edge seals 300 on the substrate 100 is the effective lens area. In the effective lens area, several fixing units 200 are arranged along the first direction X. And, both ends of the fixing unit 200 are connected to the edge seal 300, and the first direction X is parallel to the substrate 100. In the inner area of the edge seal 300, the fixing units 200 are arranged along the first direction X.
[0045] Figure 2 The shown fixing units 200 are evenly arranged along the first direction X, that is, the gap between two adjacent fixing units 200 does not change. In the embodiments of the present application, in the effective lens area, the fixing units 200 can also be arranged non-uniformly along the first direction X. In this way, a lens structure with uneven width can be obtained.
[0046] In the embodiments of the present application, the lens substrate can have only two opposite edge seals. The present application elaborates on the solution based on a lens substrate with four edge seals 300. Figure 2 The shown lens substrate has four edge seals 300. Both ends of the fixing unit 200 are respectively connected to the edge seals 300. The two ends where the fixing unit 200 is connected are opposite edge seals 300. Since both ends of the fixing unit 200 are respectively perpendicular to two opposite edge seals. When the edge seal 300 is rectangular ( Figure 2 the shown situation), the fixing unit 200 is parallel to the two opposite edge seals that are not connected. When the edge seal 300 is trapezoidal or parallelogram-shaped, the fixing unit 200 is not parallel to the two opposite edge seals that are not connected.
[0047] Figure 2On the substrate 10 shown, except for the effective lens area, other areas are virtual lens areas. In the virtual lens area, a plurality of fixing units 20 are also arranged along the first direction X and are arranged from dense to sparse along the second direction Y. The second direction Y is parallel to the substrate 100 and extends from the sealing edge 300 away from the sealing edge 300.
[0048] As Figure 2 shown, in the virtual lens area, a plurality of fixing units 200 are first arranged along the first direction X. In Figure 2 the example shown, in the virtual lens area, the fixing units 200 are evenly arranged along the first direction X, that is, the gap between two adjacent fixing units 200 does not change. In the embodiments of the present application, in the virtual lens area, the fixing units 200 can also be arranged non-uniformly along the first direction X.
[0049] In the virtual lens area, a plurality of fixing units 200 are also arranged from dense to sparse along the second direction Y. The second direction Y extends from the sealing edge 300 away from the sealing edge 300. That is to say, the fixing units 200 closest to the sealing edge 300 are arranged most densely, and the fixing units 200 farthest from the sealing edge 300 are arranged most sparsely.
[0050] Exemplarily, as Figure 2 shown in the virtual lens area, the row closest to the sealing edge 300 includes 23 fixing units 200. The row farthest from the sealing edge 300 includes 6 fixing units 200. In the same width range, the row closest to the sealing edge 300 is the row of fixing units 200 arranged most densely, and the row farthest from the sealing edge 300 is the row of fixing units 200 arranged most sparsely. In this way, the gaps between the fixing units 200 are actually also arranged from dense to sparse.
[0051] Based on Figure 2 the lens substrate shown, when printing the adhesive material, even if the printing needle still has a period of glue discharge after receiving the voltage-controlled stop signal, using the characteristics of the adhesive material itself, the excess glue discharge will spread directionally along the gaps arranged from narrow to wide. That is to say, there is a wider gap between the fixing units 200 in the row farthest from the sealing edge 300, while the fixing units 200 in the row closest to the sealing edge 300 have a narrower gap, and the glue is more likely to flow and spread in this arrangement of gaps from narrow to wide.
[0052] The formed structure is equivalent to the glue guiding structure of the lens substrate, which diverts the excess glue from the edge sealing 300 to the area away from the edge sealing 300, thus avoiding the residue of excess glue at the edge sealing 300. The glue guiding structure includes a glue discharging area and a glue storing area. The glue discharging area is the area where the fixing unit 200 is provided, and the glue storing area is the area where the fixing unit 200 is not provided. That is to say, on the lens substrate, there will be no glue spreading at the position where the fixing unit 200 is provided. Therefore, the positions where the fixing unit 200 is provided are all glue discharging areas; while there is glue spreading at the positions where the fixing unit 200 is not provided. Therefore, the positions where the fixing unit 200 is not provided are all glue storing areas. The glue can flow and spread in the glue storing area.
[0053] Therefore, based on the lens substrate of the embodiment of the present application, when the printing needle discharges too much glue, it can avoid the residue of excess glue at the frame. Furthermore, it can avoid the uneven thickness and wide width of the lens frame, improve the height consistency of the lens frame, and then improve the placement distance consistency between the 2D display screen and the lens. At the same time, it can narrow the lens frame, and then improve the product design aesthetics of the naked-eye 3D display.
[0054] It should be noted that the second direction Y in the embodiment of the present application refers to the direction extending from the edge sealing 300 to the area away from the edge sealing 300. Therefore, the second direction Y actually includes two directions. As Figure 2 shown, the second direction Y can be the direction forward from the edge sealing 300, or the direction backward from the edge sealing 300. A plurality of fixing units are arranged from dense to sparse along the direction forward from the edge sealing 300, and at the same time, a plurality of fixing units are arranged from dense to sparse along the direction backward from the edge sealing 300. The embodiment of the present application elaborates on the solution for the glue guiding structure on one side. The glue guiding structures on both sides can be arranged in the same way or in different ways. For example, the fixing units 200 on both sides can be set with different densities.
[0055] Figure 2 For the shown lens substrate, a glue guiding structure from dense to sparse can be set on the two opposite edge sealings of the edge sealing 300, or a glue guiding structure from dense to sparse can be set only on one side edge sealing of the edge sealing 300. Since Figure 2 in the shown lens substrate of the straight row Lens, the two sides parallel to the Y direction are blocked by the fixing unit 200 to prevent the glue from flowing in the X direction. Therefore Figure 2 in the shown lens substrate of the straight row Lens, a glue guiding structure can be set only on the upper and lower edge sealings 300. Setting a glue guiding structure from dense to sparse on one side edge sealing of the edge sealing 300 can also achieve the effect of spreading the glue, while setting a glue guiding structure from dense to sparse on the two opposite side edge sealings of the edge sealing 300 can further improve the effect of spreading the teaching material.
[0056] In some embodiments, the fixing unit 200 can also be arranged in a diagonal row. Figure 2For the lens substrate shown, the edge seals 300 connected to both ends of the fixing unit 200 are only the opposite edge seals 300, and the fixing unit 200 is perpendicular to the two connected edge seals 300, that is, the fixing unit 200 is vertically arranged.
[0057] Figure 4 It is a schematic top view of another lens substrate provided by an embodiment of the present application. Figure 4 The shown lens substrate includes a substrate 100, a plurality of fixing units 200 provided on the substrate 100, and edge seals 300 provided on the substrate 100. There is a gap between two adjacent fixing units 200.
[0058] As Figure 4 Shown, the edge seals connected to both ends of some of the fixing units 200 are opposite edge seals, while the edge seals connected to both ends of some of the fixing units 200 are adjacent edge seals. In this case, the fixing unit 200 is not perpendicular to the two connected edge seals, that is, there is an inclined angle with the edge seals.
[0059] Based on Figure 4 When performing a direct writing and printing lens production process based on the shown lens substrate, there will also be excess adhesive material accumulating and remaining at the edge seal 300, resulting in uneven thickness of the edge seal 300 and a relatively wide width of the edge seal 30. Therefore, when applying the lens produced based on the Figure 4 shown lens substrate to a display product, the consistency of the placement distance between the display screen and the lens on the surface is relatively poor, and it affects the design aesthetics of the display product.
[0060] Therefore, for the Figure 4 shown lens substrate, a glue guiding structure can also be provided in the external area of the edge seal 300. Figure 5 It is a schematic top view of another lens substrate provided by an embodiment of the present application. As Figure 5 Shown, the area between two opposite edge seals is the effective lens area. In the effective lens area, the edge seals connected to both ends of some of the fixing units 200 are opposite edge seals, while the edge seals connected to both ends of some of the fixing units 200 are adjacent edge seals. The fixing units 200 are arranged along the first direction X. Figure 5 The shown fixing units 200 are evenly arranged along the first direction X. The fixing units 200 can also be unevenly arranged along the first direction X. The embodiment of the present application does not limit this. The first direction X is still perpendicular to the fixing unit 200.
[0061] As Figure 5As shown, the other areas of the lens substrate excluding the effective lens area are virtual lens areas. In the virtual lens area, the fixing units 200 are arranged along the first direction X and are arranged from dense to sparse along the second direction Y. That is to say, the fixing units 200 closest to the edge seal 300 are arranged most densely, and the fixing units 200 farthest from the edge seal 300 are arranged most sparsely. In this way, a glue guiding structure can also be formed, in which there is a wider gap between the rows of fixing units 200 farthest from the edge seal 300, and a narrower gap between the rows of fixing units 200 closest to the edge seal 300. The glue material is more likely to flow and spread out in this arrangement of gaps from narrow to wide.
[0062] It can be seen that based on Figure 5 When printing the glue material on the shown lens substrate, even if the printing needle ejects too much glue, it can avoid the residue of excess glue material at the border. Furthermore, it can avoid uneven thickness and wide border of the lens frame, improve the height consistency of the lens frame, and further improve the placement distance consistency between the 2D display screen and the lens. At the same time, it can narrow the lens frame, thereby enhancing the product design aesthetics of the naked-eye 3D display.
[0063] It should be noted that Figure 5 For the lens substrate of the slanted row Lens shown, since the glue material will spread at the positions of all four edge seals 300, therefore, for Figure 5 the lens substrate of the slanted row Lens shown, glue guiding structures can be provided on all four sides. That is to say, Figure 5 in the lens substrate of the slanted row Lens shown, not only can the glue guiding structures in the above embodiments be provided at the positions of the upper and lower edge seals, but also the glue guiding structures in the above embodiments can be provided at the positions of the left and right edge seals. This can further ensure that the glue material flows and spreads out on the lens substrate and avoid the residue and accumulation of the glue material at the edge seal positions.
[0064] In some embodiments, on the substrate 100 in the virtual lens area, along the second direction Y, several of the fixing units 200 are divided into at least two gradient regions. In different gradient regions, the fixing units 200 have different densities, and the density of the fixing units 200 gradually decreases along the second direction Y. The density of the fixing unit 200 referred to in the embodiments of the present application is expressed as the number of individual fixing units 200 included per unit area on the substrate.
[0065] Exemplarily, as Figure 2As shown in the figure, in the virtual lens region, along the second direction Y, the fixing unit 200 is divided into three gradient regions, namely gradient region I, gradient region II, and gradient region III. Among them, the areas of gradient region I, gradient region II, and gradient region III are the same. Gradient region I contains 23 fixing units 200, gradient region II contains 12 fixing units 200, and gradient region III contains 6 fixing units 200. Therefore, the density of the fixing units 200 in the three gradient regions is ranked as gradient region I > gradient region II > gradient region III. Correspondingly, the width of the degumming gap from narrow to wide is gradient region I, gradient region II, and gradient region III.
[0066] It should be noted that the virtual lens region belongs to the process edge region, and there are both the master structure and the lens glue material printed in the subsequent process. After the lens is cured, the virtual transparent region does not need to be cut off, and the cutting region is in the peripheral region of the virtual lens region.
[0067] The effect of setting different gradient regions in this way is as follows: at least two gradient regions are set, and starting from the sealing edge 300, in the direction away from the sealing edge 300, the fixing units 200 are set from dense to sparse. This can not only achieve the directional spreading of the lens glue material but also reduce the process difficulty.
[0068] In the embodiment of the present application, according to the actual situation, at least two gradient regions can be set outside the sealing edge 300. For example, only two gradient regions, namely gradient region I and gradient region II, can be set, or three gradient regions, namely gradient region I, gradient region II, and gradient region III, can be set. Two gradient regions can also be set. For example, only two gradient regions, namely gradient region I and gradient region III, can be set, or four gradient regions, namely gradient region I, gradient region II, gradient region III, and gradient region IV (not shown in the figure, and the density of the fixing units 200 in gradient region IV is less than that in gradient region III), can be set. Therefore, the setting method of the gradient region is not limited to Figure 2 the setting method shown in the figure.
[0069] As Figure 5 shown in the figure, for the lens substrate with the fixing units 200 arranged obliquely, multiple different gradient regions can also be set. Similarly, only two gradient regions, namely gradient region I and gradient region II, can be set, or three gradient regions, namely gradient region I, gradient region II, and gradient region III, can be set. Two gradient regions can also be set. For example, only two gradient regions, namely gradient region I and gradient region III, can be set, or four gradient regions, namely gradient region I, gradient region II, gradient region III, and gradient region IV, can be set. Therefore, the setting method of the gradient region is not limited to Figure 5 the setting method shown in the figure.
[0070] In some embodiments, in the gradient region closest to the edge seal 300, the fixing unit 200 has a first density m 1 , and in the effective lens region, the fixing unit 200 has a second density m 2 , where m 1 >m 2 .
[0071] Exemplarily, as Figure 2 shown, the gradient region I is the gradient region closest to the edge seal 300. In the gradient region I, the fixing unit 200 has a first density m 1 . In the effective lens region, the fixing unit 200 has a second density m 2 . Among them, there are 23 fixing units 200 in the gradient region I, and 12 fixing units 200 in the effective lens region. The effective lens region divides the same area as the gradient region I, so the first density m 1 can be obtained to be greater than the second density m 2 . In this way, the region starting from the edge seal 300 has the effect of guiding the glue, avoiding the accumulation and residue of the glue material at the edge seal 300.
[0072] In some embodiments, as Figure 3 shown, the fixing unit 200 is formed by a first buffer layer 201 and a defining layer 202 provided on the substrate 100. The first buffer layer 201 is provided on the substrate 100, and the defining layer 202 is provided on the side of the first buffer layer 201 away from the substrate 100.
[0073] The first buffer layer 201 is an intermediate layer etched or stacked with materials on the substrate 100, and the defining layer 202 is a layer stacked with materials on the basis of the first buffer layer 201. The first buffer layer 201 can provide an intermediate layer between the substrate 100 and the defining layer 202 to improve the interfacial characteristics between the substrate 100 and the defining layer 202, reduce defects, and improve the stability and performance of the overall structure.
[0074] In addition, if the fixing unit 200 is the upper film layer in the in-plane region, the fixing unit 200 and the edge seal 300 can be of the same layer and the same material. If the fixing unit 200 is a bilayer structure in the in-plane region, that is, having two film layers, the upper film layer of the fixing unit 200 can be of the same layer and the same material as the edge seal 300.
[0075] It should be noted that Figure 3 in the shown fixing unit 200, the cross-sectional shapes of the first buffer layer 201 and the defining layer 202 are rectangular. The cross-sectional shapes of the first buffer layer 201 and the defining layer 202 can also be trapezoidal, and the cross-sectional shapes of the first buffer layer 201 and the defining layer 202 are not limited in this application.
[0076] In some embodiments, in each gradient region, a plurality of glue layer anchor points 400 arranged along the first direction are further provided on the substrate 100. During the process of printing the glue material, the glue material can flow through the glue layer anchor points 400. Due to the material properties of the lens printing glue material, the glue material may break during the spreading process. If it accumulates into lumps after breaking, it will cause the glue material spreading process to be slow or even stop spreading, thereby resulting in low lens printing efficiency and poor quality. In the embodiments of the present application, by setting the glue layer anchor points 400 in each extraction region, the glue layer anchor points 400 can prevent the glue material from breaking during the spreading process, thereby avoiding the glue material from accumulating into lumps and improving the lens printing efficiency and quality.
[0077] In some embodiments, in the virtual lens region on the substrate 100, a plurality of glue layer anchor points 400 are also arranged from dense to sparse along the second direction Y. Since the closer to the edge sealing 300, the narrower the gap between the fixing units 200, the slower the glue material flows, and the glue material is not easily broken during the spreading process. Therefore, relatively sparse glue layer anchor points 400 can be set or no glue layer anchor points 400 are set. And the farther from the edge sealing 300, the wider the gap between the fixing units 200, the faster the glue material flows, and the glue material is easily broken during the spreading process. Therefore, relatively dense glue layer anchor points 400 need to be set to prevent the glue material from breaking during the spreading process.
[0078] In some embodiments, the glue layer anchor points 400 are formed by a second buffer layer 203 provided on the substrate 100. The first buffer layer 201 and the second buffer layer 203 can be layers generated by different etching processes, or can be layers generated by stacking different materials on the substrate 100 in different processes, or can be layers generated by the same etching process, or are layers generated by stacking the same material on the substrate 100 in the same process. This can save the generation process of the lens substrate and improve the production efficiency.
[0079] In some embodiments, in the same gradient region, the area of a single fixing unit 200 is larger than the area of a single glue layer anchor point 400. In the embodiments of the present application, the glue layer anchor points 400 with a smaller area can achieve the effect of preventing the glue material from breaking during the spreading process. Therefore, the area of a single glue layer anchor point 400 is set to be smaller than the area of a single fixing unit 200, so as to not only achieve the purpose of arranging the glue layer anchor points 400, but also ensure that the spreading gap of the glue material is wide enough.
[0080] Figure 6 It is a schematic top view of the fixing unit provided by the embodiments of the present application. Figure 7 It is a schematic top view of the glue layer anchor point provided by the embodiments of the present application. Figure 8 It is a schematic top view of the combination of the fixing unit and the glue layer anchor point provided by the embodiments of the present application. In some embodiments, to improve the guiding effect of the fixing unit 200 on the glue material, the shape of the fixing unit 200 can be optimized. Such asFigure 6 as shown in Figure 8 As shown in Figure 8 , the fixing unit 200 of the virtual lens region at least has a first arc portion 204, and the first arc portion 204 can guide the adhesive material to flow along the second direction Y on the base 100, further improving the spreading speed of the adhesive material along the second direction Y and avoiding the accumulation and residue of the adhesive material at the edge seal 300.
[0081] In some embodiments, in order to enhance the hanging effect of the adhesive layer anchor 400 on the adhesive material, the shape of the adhesive layer anchor 400 can also be optimized. For example Figure 7 and Figure 8 As shown in Figure 8 , the adhesive layer anchor 400 can also be provided with an arc structure, and the opening direction of the arc structure can be opposite to the second direction Y. In this way, when the adhesive material flows and spreads along the second direction Y, the adhesive layer anchor 400 can more easily hold the adhesive material, thereby avoiding the rupture of the adhesive material.
[0082] In some embodiments, in the effective lens region, when the edge seals 300 connected to both ends of the fixing unit 200 are only the opposite edge seals 300, the fixing unit 200 is perpendicular to the connected edge seals 300, and the edge seals 300 are continuously arranged.
[0083] Exemplarily, as Figure 2 As shown in Figure 2 , in the effective lens region, the fixing unit 200 is connected to two opposite edge seals 300, and the fixing unit 200 is perpendicular to the two opposite edge seals 300, and the edge seals 300 are both continuously arranged.
[0084] Figure 5 As shown in Figure 5 , for some fixing units 200, the edge seals 300 connected to both ends are opposite edge seals 300, while for some fixing units 200, the edge seals 300 connected to both ends are adjacent edge seals 300. At this time, the side surface of the fixing unit 200 relative to the edge seal 300 is actually in an inclined state, and acute and obtuse printing areas are formed between the fixing unit 200 and the edge seal 300. The acute and obtuse printing areas will affect the morphology of the lens and easily lead to inconsistent morphology. Therefore, based on Figure 5 the lens printed on the lens substrate shown in Figure 5 has poor morphological consistency.
[0085] In some embodiments, in the effective lens region, when the edge seals 300 connected to both ends of some fixing units 200 are opposite edge seals 300 and the edge seals 300 connected to both ends of some fixing units 200 are adjacent edge seals 300, the fixing unit 200 is perpendicular to the connected edge seals 300, and the edge seals 300 are intermittently arranged or continuously arranged.
[0086] Exemplarily, as Figure 9 As shown in Figure 9 , for some fixing units 200, the edge seals 300 connected to both ends are opposite edge seals 300, while for some fixing units 200, the edge seals 300 connected to both ends are adjacent edge seals 300. Compared withFigure 5 The edge seal 300 shown is different in that Figure 9 the edge seal 300 shown is set to be perpendicular to the fixing unit 200. That is, the edge seal 300 is set to be serrated, so that there is only a right-angle printing area between the fixing unit 200 and the edge seal 300, and there is no acute-angle and obtuse-angle printing area, avoiding the inconsistent topography caused by the acute-angle and obtuse-angle printing areas. Therefore, based on Figure 9 the lens printed on the lens substrate shown, the topography of the lens is relatively consistent.
[0087] Figure 9 the serrated edge seal 300 shown is set as a single strip, that is, the edge seal 300 is intermittently arranged. To facilitate the processing of the lens substrate, the single-strip edge seal 300 can be connected to obtain the lens substrate as shown in Figure 10 shown. Figure 10 In this case, the material of the edge seal 300 can be the same as the material of the defining layer of the fixing unit 200, so that the edge seal 300 can be continuously arranged, reducing the processing difficulty of the lens substrate, and at the same time, there is only a right-angle printing area between the fixing unit 200 and the edge seal 300.
[0088] The second aspect of the present application provides a lens, as shown in Figure 3 shown, including a glue part 500 and the lens substrate described in the first aspect. The glue part 500 is arranged in the printing area of the substrate 100, and the printing area of the substrate 100 is the area where the fixing unit 200 is not provided. That is to say, on the basis of the lens substrate in the first aspect, glue is printed, and after the glue part 500 is formed on the substrate 100, the lens in the second aspect is obtained. Since the glue guiding structure is added to the effective lens area, the thickness of the formed lens frame is uniform and the frame is narrower, significantly improving the height consistency of the lens frame.
[0089] The third aspect of the present application provides a display device, and the display device includes the lens described in the second aspect. By adopting the lens in the second aspect in the display device, the placement distance consistency between the display screen and the lens can be improved, and at the same time, the lens frame can be narrowed, thereby improving the product design aesthetics of the display device.
[0090] The display device provided by the embodiments of the present application may include a smart watch, an AR (augmented display) device, a VR (virtual reality) device, etc. The display device provided by the embodiments of the present application may be a naked-eye 3D display product.
[0091] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.
[0092] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0093] In the description of this application, the "first feature" and "second feature" may include one or more of such features.
[0094] In the description of this application, the meaning of "a plurality" is two or more.
[0095] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.
[0096] In the description of this application, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature.
[0097] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0098] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.
Claims
1. A lens substrate, characterized in that: include: Effective lens area and virtual lens area; The lens substrate further comprises a base, a plurality of fixing units arranged on the base, and at least two edge seals, there is a gap between any adjacent fixing units, the effective lens area refers to the area between the two opposite edge seals, and the virtual lens area refers to other areas on the lens substrate excluding the effective lens area; In the effective lens area, the fixing units are arranged along a first direction, and both ends of the fixing units are connected to the edge seal, and the first direction is parallel to the base and perpendicular to the central axis of the fixing units; In the virtual lens area, the fixed units are arranged along the first direction, and a plurality of the fixed units are divided into at least two gradient areas along the second direction, in different gradient areas, the fixed units have different densities, and the density of the fixed units gradually decreases along the second direction, and the second direction is parallel to the substrate and extends from the edge seal to away from the edge seal.
2. The lens substrate according to claim 1, characterized in that: In the gradient region closest to the edge seal, the fixing units have a first density m1, and in the effective lens region, the fixing units have a second density m2, wherein m1>m2.
3. The lens substrate according to claim 2, characterized in that: The fixing unit is formed by a first buffer layer and a limiting layer which are arranged on the substrate. The first buffer layer is arranged on the substrate, and the limiting layer is arranged on a side of the first buffer layer away from the substrate.
4. The lens substrate according to claim 3, characterized in that: In each of the gradient regions, a plurality of glue layer anchor points arranged along a first direction are also provided on the substrate.
5. The lens substrate according to claim 4, characterized in that: In the virtual lens area on the substrate, a plurality of the glue layer anchor points are arranged from dense to sparse along the second direction.
6. The lens substrate according to claim 4, characterized in that: The glue layer anchor point is formed by a second buffer layer disposed on the substrate.
7. The lens substrate according to claim 4, characterized in that: In the same gradient region, the area of a single fixing unit is larger than the area of a single glue layer anchor point.
8. The lens substrate according to claim 1, characterized in that: The fixing unit in the virtual lens area has at least a first arc-shaped portion, and the first arc-shaped portion can guide the glue material on the base to flow along the second direction.
9. The lens substrate according to claim 1, characterized in that: In the effective lens area, when the edge seals connected to both ends of the fixing unit are only opposite edge seals, the fixing unit is perpendicular to the connected edge seals, and the edge seals are continuously arranged.
10. The lens substrate according to claim 1, characterized in that: In the effective lens area, when the edge sealing parts connected to both ends of the fixing unit are opposite edge sealings, the fixing unit is perpendicular to the connected edge sealings, and the edge sealings are intermittently or continuously arranged.
11. A lens, characterized in that: It comprises a glue part and a lens substrate as claimed in any one of claims 1 to 10, wherein the glue part is arranged in a printing area of the substrate, and the printing area of the substrate is an area where the fixing unit is not arranged.
12. A display device, characterized in that: Comprising the lens as claimed in claim 11.