Bidirectionally switchable naked-eye 3D display module

Abstract

The utility model discloses two -way switchable naked eye 3D display module, including first cylinder lens group, second cylinder lens group and LED display module, first cylinder lens group, second cylinder lens group and LED display module from above down in proper order arrange and adhere, including a plurality of side -by -side first cylinder lens in first cylinder lens group, including a plurality of side -by -side second cylinder lens in second cylinder lens group, first cylinder lens and second cylinder lens perpendicularly set. This structure arranges and adheres in proper order through setting first cylinder lens group, second cylinder lens group and LED display module, and first cylinder lens and second cylinder lens perpendicularly set, realized horizontal and vertical two -way 3D display function, satisfied the 3D observation demand of different postures and angle of viewer.

Description

Technical Field

[0001] This utility model relates to the field of display modules, and in particular to a bidirectional switchable naked-eye 3D display module. Background Technology

[0002] The current principle of 3D display technology is that in stereoscopic mode, when the image that should be seen by the left eye is displayed on the LCD screen, opaque stripes block the right eye; similarly, when the image that should be seen by the right eye is displayed on the LCD screen, opaque stripes block the left eye. By separating the visible images for the left and right eyes, the viewer sees a 3D image. Therefore, 3D display on a flat panel display requires high resolution and brightness. We know that high-definition, high-brightness screens are now standard on mainstream flat panel displays, and the use of Philips lenticular lens technology represents a significant leap forward in 3D effect compared to parallax barrier technology. However, current flat panel displays are limited to horizontal placement when used for 3D, which places high demands on the viewer's posture and viewing distance. Deviations can easily lead to the appearance of moiré stripes, resulting in a deterioration in stereoscopic display effects and eye strain, severely impacting the viewing experience. Moreover, in people's daily lives, smartphone use far surpasses that of flat panel displays, making research into bidirectional naked-eye 3D display of great significance. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a bidirectional switchable naked-eye 3D display module that can realize 3D display in both horizontal and vertical directions, meeting the 3D observation needs of viewers in different postures and angles.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a bidirectional switchable naked-eye 3D display module, including a first cylindrical lens group, a second cylindrical lens group and an LED display module. The first cylindrical lens group, the second cylindrical lens group and the LED display module are arranged and attached from top to bottom. The first cylindrical lens group includes a plurality of first cylindrical lenses arranged side by side, and the second cylindrical lens group includes a plurality of second cylindrical lenses arranged side by side. The first cylindrical lenses and the second cylindrical lenses are arranged vertically.

[0005] Furthermore, the first cylindrical lens group includes a first ITO glass, a first conductive ITO layer, a first PI layer, a first liquid crystal layer, a second conductive ITO layer, and a second ITO glass arranged sequentially. The first cylindrical lens is disposed within the first liquid crystal layer. The planar end of the first cylindrical lens is attached to the second conductive ITO layer, and the convex end of the first cylindrical lens is provided with the second PI layer. It also includes a first power control module connected to the first conductive ITO layer and the second conductive ITO layer.

[0006] Furthermore, the second cylindrical lens group includes a third ITO glass, a third conductive ITO layer, a third PI layer, a third liquid crystal layer, a fourth conductive ITO layer, and a fourth ITO glass arranged sequentially. The second cylindrical lens is disposed within the third liquid crystal layer. The planar end of the second cylindrical lens is attached to the fourth conductive ITO layer, and the convex end of the second cylindrical lens is provided with the fourth PI layer. It also includes a second power control module connected to the third conductive ITO layer and the fourth conductive ITO layer.

[0007] Furthermore, both the first and second cylindrical lenses are made of UV-curable resin.

[0008] Furthermore, a first optical adhesive layer is provided between the first cylindrical lens group and the second cylindrical lens group, and a second optical adhesive layer is provided between the second cylindrical lens group and the LED display module.

[0009] Furthermore, a microlens array layer is provided between the convex end of the first cylindrical lens and the second PI layer, and between the convex end of the second cylindrical lens and the fourth PI layer; the microlens array layer is composed of a plurality of hemispherical microlenses with a diameter of 5-10μm arranged closely together.

[0010] Furthermore, the first ITO glass of the first cylindrical lens group, on the side away from the first conductive ITO layer, and the fourth ITO glass of the second cylindrical lens group, on the side away from the fourth conductive ITO layer, are both provided with anti-reflective coatings; the anti-reflective coatings adopt a multilayer structure of alternating SiO2 and TiO2.

[0011] Furthermore, the edges of both the first conductive ITO layer and the second conductive ITO layer are provided with first metal leads, and the surface of the first metal leads is covered with an insulating protective sleeve.

[0012] The edges of the third conductive ITO layer and the fourth conductive ITO layer are provided with second metal leads, and the surfaces of the second metal leads are covered with insulating protective sleeves.

[0013] The first metal lead and the second metal lead are located on different sides of the first cylindrical lens group and the second cylindrical lens group, respectively.

[0014] The beneficial effects of this invention are as follows: By arranging and bonding the first cylindrical lens group, the second cylindrical lens group, and the LED display module sequentially, with the first and second cylindrical lenses vertically positioned, 3D display functions in both horizontal and vertical directions are achieved, meeting the 3D observation needs of viewers from different postures and angles. This bidirectional switchable design effectively overcomes the limitations of viewing posture and distance in traditional 3D display technology, avoiding moiré patterns during viewing, thus significantly improving the stereoscopic display effect and reducing visual fatigue. Simultaneously, the use of ultraviolet-curable resin cylindrical lenses, and the application of optical adhesive layers, microlens array layers, and anti-reflective coatings in key areas, further optimizes the performance of the display module, improving image clarity and viewing comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a bidirectional switchable naked-eye 3D display module according to an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of a single lens group or a second lens group of a bidirectional switchable naked-eye 3D display module according to an embodiment of this application.

[0017] The components are labeled as follows: First cylindrical lens group 1, First ITO glass 101, First conductive ITO layer 102, First PI layer 103, First liquid crystal layer 104, Second conductive ITO layer 105, Second ITO glass 106, Second PI layer 107, First power control module 108, Microlens array layer 109, Anti-reflective coating 110, First metal lead wire 111, Second cylindrical lens group 2, LED display module 3, First optical adhesive layer 4, Second optical adhesive layer 5. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, embodiments of this application disclose a bidirectional switchable naked-eye 3D display module, including a first cylindrical lens group 1, a second cylindrical lens group 2, and an LED display module 3. The first cylindrical lens group 1, the second cylindrical lens group 2, and the LED display module 3 are arranged and attached from top to bottom. The first cylindrical lens group 1 includes a plurality of first cylindrical lenses arranged side by side, and the second cylindrical lens group 2 includes a plurality of second cylindrical lenses arranged side by side. The first cylindrical lenses and the second cylindrical lenses are arranged vertically.

[0020] The first cylindrical lens group 1 includes a first ITO glass 101, a first conductive ITO layer 102, a first PI layer 103, a first liquid crystal layer 104, a second conductive ITO layer 105, and a second ITO glass 106 arranged sequentially. The first cylindrical lens is disposed in the first liquid crystal layer 104. The planar end of the first cylindrical lens is attached to the second conductive ITO layer 105, and the convex end of the first cylindrical lens is provided with the second PI layer 107. It also includes a first power control module 108 connected to the first conductive ITO layer 102 and the second conductive ITO layer 105.

[0021] The second cylindrical lens group 2 includes a third ITO glass, a third conductive ITO layer, a third PI layer, a third liquid crystal layer, a fourth conductive ITO layer, and a fourth ITO glass arranged sequentially. The second cylindrical lens is disposed in the third liquid crystal layer. The planar end of the second cylindrical lens is attached to the fourth conductive ITO layer, and the convex end of the second cylindrical lens is provided with the fourth PI layer. It also includes a second power control module connected to the third conductive ITO layer and the fourth conductive ITO layer.

[0022] In practical use, the first cylindrical lens group 1 and the second cylindrical lens group 2 are powered and controlled respectively. When the viewer needs a horizontal 3D display effect, the first power control module 108 is turned on, causing the first liquid crystal layer 104 in the first cylindrical lens group 1 to undergo an electrical control change, thereby adjusting the refractive characteristics of the first cylindrical lens to achieve horizontal 3D image separation and display. At this time, the second power control module can be in a closed or low-power state, and the second cylindrical lens group 2 does not participate or exists only in a basic state, without affecting the horizontal 3D display.

[0023] Conversely, when the viewer requires a vertical 3D display effect, the second power control module is turned on to electrically control the third liquid crystal layer in the second cylindrical lens group 2, adjusting the refractive characteristics of the second cylindrical lens to achieve vertical 3D image separation and display; at the same time, the first power control module 108 can be adjusted or turned off accordingly to ensure that the first cylindrical lens group 1 does not interfere with the vertical 3D display.

[0024] The aforementioned structure not only enables bidirectional switchable naked-eye 3D display but also ensures the stability and clarity of the display effect through meticulous structural design. Specifically, the vertical arrangement between the first cylindrical lens group 1 and the second cylindrical lens group 2 ensures that the 3D displays in the two directions do not interfere with each other and can be quickly switched according to the viewer's needs.

[0025] In this embodiment, both the first cylindrical lens and the second cylindrical lens are made of UV-curable resin.

[0026] Specifically, the UV-curable resin material possesses excellent light transmittance and moldability, ensuring high precision and consistency between the first and second cylindrical lenses during manufacturing, thereby effectively improving the clarity and stereoscopic effect of the 3D display. Simultaneously, this material also exhibits good weather resistance and chemical stability, extending the lifespan of the display module and reducing maintenance costs.

[0027] In this embodiment, a first optical adhesive layer 4 is provided between the first cylindrical lens group 1 and the second cylindrical lens group 2, and a second optical adhesive layer 5 is provided between the second cylindrical lens group 2 and the LED display module.

[0028] Specifically, both the first optical adhesive layer 4 and the second optical adhesive layer 5 are made of optical adhesive materials with high light transmittance and low viscosity. This material can effectively reduce light loss and scattering during transmission, ensuring the brightness and color reproduction of the 3D display. At the same time, the optical adhesive layers also play a buffering and protective role, preventing the first cylindrical lens group 1, the second cylindrical lens group 2, and the LED display module 3 from being damaged by external impacts during assembly or use.

[0029] In this embodiment, a microlens array layer 109 is provided between the convex end of the first cylindrical lens and the second PI layer, and between the convex end of the second cylindrical lens and the fourth PI layer; the microlens array layer 109 is composed of a plurality of hemispherical microlenses with a diameter of 5-10μm arranged closely together.

[0030] Specifically, the microlens array layer 109 further enhances the focusing effect of light, allowing light passing through the first and second cylindrical lenses to be projected more precisely to the viewer's left and right eyes, thereby improving the stereoscopic effect and clarity of the 3D display. These closely arranged hemispherical microlenses effectively reduce light diffraction and scattering, ensuring sharper edges and more vibrant colors in the 3D image. Simultaneously, the microlens array layer 109 also provides some anti-reflective properties, reducing interference from external light on the display effect and improving viewing comfort.

[0031] In this embodiment, the first ITO glass 101 of the first cylindrical lens group 1, which is away from the first conductive ITO layer 102, and the fourth ITO glass of the second cylindrical lens group 2, which is away from the fourth conductive ITO layer, are both provided with anti-reflection coatings 110; the anti-reflection coatings 110 adopt a multilayer structure of alternating SiO2 and TiO2.

[0032] Specifically, the anti-reflective coating 110 effectively reduces light reflection on the glass surface, minimizing the interference of ambient light on the display effect. The multi-layered structure of alternating SiO2 and TiO2 creates a gradient refraction of light at different wavelengths, achieving a highly efficient anti-reflective effect over a wider wavelength range. This multi-layered structure not only enhances the brightness and contrast of the 3D display but also ensures stable display performance under different ambient light conditions, further enhancing viewing comfort and immersion.

[0033] In this embodiment, the edges of the first conductive ITO layer and the second conductive ITO layer are provided with first metal leads 111, and the surface of the first metal leads 111 is covered with an insulating protective sleeve.

[0034] The edges of the third conductive ITO layer and the fourth conductive ITO layer are provided with second metal leads, and the surfaces of the second metal leads are covered with insulating protective sleeves.

[0035] The first metal lead 111 and the second metal lead are located on different sides of the first cylindrical lens group 1 and the second cylindrical lens group 2, respectively.

[0036] Specifically, the first metal lead 111 and the second metal lead are designed to facilitate the connection of the first conductive ITO layer 102, the second conductive ITO layer 105, the third conductive ITO layer, and the fourth conductive ITO layer to external circuits, thereby enabling the power control module to precisely control the electrical changes of the liquid crystal layer. The insulating protective sleeve covering the surface effectively prevents short circuits or leakage when the metal leads come into contact with other components or are in complex environments, ensuring the safety and stability of the display module. Furthermore, placing the first metal lead 111 and the second metal lead on different sides of the first cylindrical lens group 1 and the second cylindrical lens group 2 avoids mutual interference between the leads, optimizes the internal layout of the module, and improves the compactness and reliability of the overall structure. This design ensures smooth electrical connections while also considering the physical safety of the module and space utilization.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bidirectional switchable glasses-free 3D display module, characterized in that: It includes a first cylindrical lens group (1), a second cylindrical lens group (2) and an LED display module (3). The first cylindrical lens group (1), the second cylindrical lens group (2) and the LED display module (3) are arranged and attached from top to bottom. The first cylindrical lens group (1) includes multiple first cylindrical lenses arranged side by side. The second cylindrical lens group (2) includes multiple second cylindrical lenses arranged side by side. The first cylindrical lenses and the second cylindrical lenses are arranged vertically.

2. The bidirectional switchable naked-eye 3D display module as described in claim 1, characterized in that: The first cylindrical lens group (1) includes a first ITO glass (101), a first conductive ITO layer (102), a first PI layer (103), a first liquid crystal layer (104), a second conductive ITO layer (105), and a second ITO glass (106) arranged sequentially. The first cylindrical lens is disposed in the first liquid crystal layer (104), and the planar end of the first cylindrical lens is attached to the second conductive ITO layer (105). It also includes a first power control module (108) connected to the first conductive ITO layer (102) and the second conductive ITO layer (105).

3. The bidirectional switchable naked-eye 3D display module as described in claim 2, characterized in that: The second cylindrical lens group (2) includes a third ITO glass, a third conductive ITO layer, a third PI layer, a third liquid crystal layer, a fourth conductive ITO layer and a fourth ITO glass arranged in sequence. The second cylindrical lens is disposed in the third liquid crystal layer. The planar end of the second cylindrical lens is attached to the fourth conductive ITO layer. It also includes a second power control module connected to the third conductive ITO layer and the fourth conductive ITO layer.

4. The bidirectional switchable naked-eye 3D display module as described in claim 3, characterized in that: The first cylindrical lens has a second PI layer (107) on its convex end, and the second cylindrical lens has a fourth PI layer on its convex end.

5. The bidirectional switchable naked-eye 3D display module as described in claim 1, characterized in that: Both the first and second cylindrical lenses are made of UV-curable resin.

6. The bidirectional switchable naked-eye 3D display module as described in claim 4, wherein a first optical adhesive layer (4) is provided between the first cylindrical lens group (1) and the second cylindrical lens group (2), and a second optical adhesive layer (5) is provided between the second cylindrical lens group (2) and the LED display module.

7. The bidirectional switchable naked-eye 3D display module as described in claim 6, characterized in that: A microlens array layer (109) is provided between the convex end of the first cylindrical lens and the second PI layer, and between the convex end of the second cylindrical lens and the fourth PI layer; the microlens array layer (109) is composed of a plurality of hemispherical microlenses with a diameter of 5-10μm arranged closely together.

8. The bidirectional switchable naked-eye 3D display module as described in claim 6, characterized in that: The first ITO glass (101) of the first cylindrical lens group (1) is provided with an anti-reflective coating (110) on the side away from the first conductive ITO layer (102), and the fourth ITO glass of the second cylindrical lens group (2) is provided with an anti-reflective coating (110) on the side away from the fourth conductive ITO layer; the anti-reflective coating (110) adopts a multilayer structure of alternating stacked SiO2 and TiO2.

9. The bidirectional switchable naked-eye 3D display module as described in claim 6, characterized in that: The edges of the first conductive ITO layer and the second conductive ITO layer are provided with first metal leads (111), and the surface of the first metal leads (111) is covered with an insulating protective sleeve. The edges of the third conductive ITO layer and the fourth conductive ITO layer are provided with second metal leads, and the surfaces of the second metal leads are covered with insulating protective sleeves. The first metal lead (111) and the second metal lead are located on different sides of the first cylindrical lens group (1) and the second cylindrical lens group (2), respectively.

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