Naked eye 3D display substrate and display device

Abstract

The application relates to the field of 3D display technology and discloses a naked-eye 3D display substrate, which is characterized by a backlight module, a liquid crystal display unit and a 3D grating display unit, the backlight module is arranged on the light inlet side of the liquid crystal display unit, the 3D grating display unit is arranged on the light outlet side of the liquid crystal display unit; the backlight module comprises a backlight plate, a diffusion plate and a lenticular lens, the backlight plate is used for emitting light sources, the diffusion plate and the lenticular lens are arranged on the light outlet side of the backlight plate; the 3D grating display unit comprises two grating display polaroid, a second liquid crystal layer, two grating electrode pieces and a cylindrical lens grating layer, the two grating electrode pieces are arranged between the two grating display polaroid, the second liquid crystal layer is arranged between the two grating electrode pieces, and the cylindrical lens grating layer is arranged on the upper grating electrode piece. The naked-eye 3D viewing effect can be realized through the arrangement of the 3D grating display unit, and the viewing angle can be improved.

Description

Technical Field

[0001] This application relates to the field of 3D display technology, specifically to a naked-eye 3D display substrate and display device. Background Technology

[0002] With the rapid development of modern technology, display technology has become one of the most critical technologies in the information age. Among the many display technologies, 3D display technology has attracted much attention because it can provide a more realistic and immersive viewing experience. Traditional 3D display technology mainly relies on stereoscopic glasses to achieve the stereoscopic effect. Although this technology has been widely used in specific occasions such as cinemas, its application in homes and mobile devices has been limited, mainly because stereoscopic glasses are not convenient to use and may cause discomfort if worn for a long time.

[0003] To address these issues, glasses-free 3D display technology was developed. This technology allows users to view stereoscopic images directly without wearing any auxiliary devices, greatly improving the convenience and comfort of 3D displays. The core of this technology lies in using specific optical structures and image processing techniques to enable the left and right eyes to receive different images, thereby synthesizing a stereoscopic visual effect in the brain.

[0004] Existing glasses-free 3D display technologies mainly include light barrier technology, lenticular lens technology, and directional backlighting technology. Light barrier technology creates a stereoscopic effect by placing a light barrier in front of the display panel, allowing only specific pixels to be seen by the left and right eyes. Lentic lens technology uses an array of lenticular lenses in front of the display panel to divide the image into multiple viewing angles, achieving a glasses-free 3D effect. Directional backlighting technology controls the direction of light emission from the backlight source, ensuring that light only shines in a specific direction, thus achieving stereoscopic display.

[0005] However, these technologies still face some challenges in practical applications. For example, light barrier technology reduces display brightness, lenticular lens technology has viewing angle limitations, and directional backlight technology requires complex backlight control. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above problems, this application provides a naked-eye 3D display substrate and display device.

[0008] (II) Technical Solution

[0009] To solve the above problems, this application provides the following technical solution: a naked-eye 3D display substrate, a backlight module, a liquid crystal display unit and a 3D grating display unit, wherein the backlight module is disposed on one side of the light-inlet surface of the liquid crystal display unit, and the 3D grating display unit is disposed on one side of the light-outlet surface of the liquid crystal display unit; The backlight module includes a backlight panel, a diffuser panel, and a mirror panel. The backlight panel is used to emit a light source, and the diffuser panel and the mirror panel are disposed on the light-emitting side of the backlight panel. The liquid crystal display unit includes two liquid crystal polarizers, two glass substrates, two liquid crystal electrodes, a first liquid crystal layer, and a color filter. Two glass substrates are disposed between the two liquid crystal polarizers, two liquid crystal electrodes are disposed between the two glass substrates, and the first liquid crystal layer is disposed between the two liquid crystal electrodes. The color filter is disposed between the upper liquid crystal electrode and the upper glass substrate. The 3D grating display unit includes two grating display polarizers, a second liquid crystal layer, two grating electrode sheets, and a lenticular lens grating layer. Two grating electrode sheets are disposed between the two grating display polarizers, and a second liquid crystal layer is disposed between the two grating electrode sheets. The lenticular lens grating layer is disposed on the upper grating electrode sheet.

[0010] Preferably, the liquid crystal display unit and the 3D grating display unit are vertically arranged on the backlight module light source.

[0011] Preferably, the backlight panel has several groups of indicator lights arranged in an array, the indicator lights being LEDs or CCFLs, used to provide uniform backlighting.

[0012] Preferably, the liquid crystal display unit further includes a first optical adhesive for sealing the first liquid crystal layer. The first optical adhesive is a transparent optical adhesive (OCA) or a liquid optical adhesive (OCR), or one of other transparent optical adhesives, used to seal the first liquid crystal layer between the two glass substrates.

[0013] Preferably, the 3D grating display unit further includes a second optical adhesive for sealing the second liquid crystal layer, wherein the second optical adhesive is a transparent optical adhesive OCA or a liquid optical adhesive OCR.

[0014] Preferably, the color filter is used to provide color display, and the color filter includes filters of three basic colors: red, green, and blue, and the filters are arranged in an array.

[0015] Preferably, both the liquid crystal electrode sheet and the grating electrode sheet include several sets of strip electrodes, which are arranged in parallel and at equal intervals.

[0016] Preferably, the axial direction of the strip electrode on the grating electrode sheet forms an angle with the cylindrical lens grating layer, and the angle is between 50 and 110 degrees.

[0017] A glasses-free 3D display device includes the glasses-free 3D display substrate.

[0018] Compared with the prior art, this application provides a naked-eye 3D display substrate and display device, which has the following beneficial effects: This naked-eye 3D display substrate and display device can achieve the effect of naked-eye 3D viewing by setting up a 3D grating display unit, and can improve the viewing angle by optimizing the design of the lenticular lens grating layer.

[0019] This naked-eye 3D display substrate and display device, by setting a backlight module, can reduce light loss and improve display brightness, so that light is more concentrated and projected onto the liquid crystal display unit, thereby reducing light loss and improving display brightness, and maintaining a clear display effect even in bright environments.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the naked-eye 3D display substrate of this application; Figure 2 This is a schematic diagram of the backlight module of this application; Figure 3 This is a schematic diagram of the backlight sheet structure of this application; Figure 4 This is a schematic diagram of the structure of the liquid crystal display unit of this application; Figure 5 This is a schematic diagram of the structure of the 3D grating display unit of this application.

[0022] Reference numerals: 10, backlight module; 11, backlight sheet; 12, diffuser plate; 13, prism sheet; 20, liquid crystal display unit; 21, liquid crystal display polarizer; 22, glass substrate; 23, liquid crystal electrode sheet; 24, first optical adhesive; 25, first liquid crystal layer; 26, color filter; 30, 3D grating display unit; 31, grating display polarizer; 32, second optical adhesive; 33, second liquid crystal layer; 34, grating electrode sheet; 35, lenticular grating layer. Detailed Implementation

[0023] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Please see Figures 1-5 This application provides a new technical solution: a naked-eye 3D display substrate, a backlight module 10, a liquid crystal display unit 20 and a 3D grating display unit 30, wherein the backlight module 10 is disposed on one side of the light-inlet surface of the liquid crystal display unit 20, and the 3D grating display unit 30 is disposed on one side of the light-outlet surface of the liquid crystal display unit. The backlight module 10 includes a backlight panel 11, a diffuser 12, and a mirror 13. The backlight panel 11 is used to emit a light source, and the diffuser 12 and the mirror 13 are disposed on the light-emitting side of the backlight panel 11. The liquid crystal display unit 20 includes two liquid crystal polarizers 21, two glass substrates 22, two liquid crystal electrode sheets 23, a first liquid crystal layer 25, and a color filter 26. Two glass substrates 22 are disposed between the two liquid crystal polarizers 21, two liquid crystal electrode sheets 23 are disposed between the two glass substrates 22, and the first liquid crystal layer 25 is disposed between the two liquid crystal electrode sheets 23. The color filter 26 is disposed between the upper liquid crystal electrode sheet 23 and the upper glass substrate 22. The 3D grating display unit 30 includes two grating display polarizers 31, a second liquid crystal layer 33, two grating electrode sheets 34, and a lenticular lens grating layer 35. Two grating electrode sheets 34 are disposed between the two grating display polarizers 31, and a second liquid crystal layer is disposed between the two grating electrode sheets 34. The lenticular lens grating layer 35 is disposed on the upper grating electrode sheet 34.

[0028] In some embodiments, the liquid crystal display unit 20 and the 3D grating display unit 30 are vertically disposed on the backlight module 10 light source.

[0029] In some embodiments, a plurality of groups of display lamps 111 are arranged in an array on the backlight panel 11. The display lamps 111 are LEDs or CCFLs, used to provide uniform backlighting; to ensure that the brightness of the entire display area of ​​the backlight panel 11 is consistent, the backlight emitted by the display lamps 111 is diffused by the diffuser plate 12 to make the light more uniform, avoid local over-brightness or under-brightness, and ensure the display effect. Then, the light is concentrated by the lens 13 to improve the overall brightness, so that the light is more concentrated and projected onto the liquid crystal display unit 20, reducing light loss and improving display brightness, so that a clear display effect can be maintained even in bright environments.

[0030] In some embodiments, the liquid crystal display unit 20 further includes a first optical adhesive 24 for sealing the first liquid crystal layer 25. The first optical adhesive 24 is one of transparent optical adhesive OCA, liquid optical adhesive OCR, or other transparent optical adhesives, and is used to seal the first liquid crystal layer between two glass substrates 22.

[0031] In some embodiments, the 3D grating display unit 30 further includes a second optical adhesive 32 for sealing the second liquid crystal layer 33. The second optical adhesive 32 is one of transparent optical adhesive OCA, liquid optical adhesive OCR, or other transparent optical adhesives.

[0032] In some embodiments, the color filter 26 is used to provide color display, and the color filter 26 includes filters of three basic colors: red, green and blue, and the filters are arranged in an array.

[0033] In some embodiments, both the liquid crystal electrode sheet 23 and the grating electrode sheet 34 include a plurality of strip electrodes, which are arranged in parallel and at equal intervals.

[0034] In some embodiments, the axial direction of the strip electrode on the grating electrode sheet 34 forms an angle with the cylindrical lens grating layer 35, and the angle is between 50 and 110 degrees.

[0035] In some embodiments, a glasses-free 3D display device includes the glasses-free 3D display substrate.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glasses-free 3D display substrate, characterized in that, The backlight module, the liquid crystal display unit, and the 3D grating display unit are provided. The backlight module is disposed on the light-inlet side of the liquid crystal display unit, and the 3D grating display unit is disposed on the light-outlet side of the liquid crystal display unit. The backlight module includes a backlight panel, a diffuser panel, and a mirror panel. The backlight panel is used to emit a light source, and the diffuser panel and the mirror panel are disposed on the light-emitting side of the backlight panel. The liquid crystal display unit includes two liquid crystal polarizers, two glass substrates, two liquid crystal electrodes, a first liquid crystal layer, and a color filter. Two glass substrates are disposed between the two liquid crystal polarizers, two liquid crystal electrodes are disposed between the two glass substrates, and the first liquid crystal layer is disposed between the two liquid crystal electrodes. The color filter is disposed between the upper liquid crystal electrode and the upper glass substrate. The 3D grating display unit includes two grating display polarizers, a second liquid crystal layer, two grating electrode sheets, and a lenticular lens grating layer. Two grating electrode sheets are disposed between the two grating display polarizers, and a second liquid crystal layer is disposed between the two grating electrode sheets. The lenticular lens grating layer is disposed on the upper grating electrode sheet.

2. The naked-eye 3D display substrate according to claim 1, characterized in that, The liquid crystal display unit and the 3D grating display unit are vertically arranged on the backlight module light source.

3. The naked-eye 3D display substrate according to claim 1, characterized in that, The backlight panel has several groups of indicator lights arranged in an array, and the indicator lights are LEDs or CCFLs, used to provide uniform backlighting.

4. The naked-eye 3D display substrate according to claim 1, characterized in that, The liquid crystal display unit further includes a first optical adhesive for sealing the first liquid crystal layer. The first optical adhesive is a transparent optical adhesive (OCA) or a liquid optical adhesive (OCR).

5. A glasses-free 3D display substrate according to claim 1, characterized in that, The D-grating display unit also includes a second optical adhesive for sealing the second liquid crystal layer. The second optical adhesive is either transparent optical adhesive (OCA) or liquid optical adhesive (OCR).

6. A glasses-free 3D display substrate according to claim 1, characterized in that, The color filter is used to provide color display. The color filter includes filters for three basic colors: red, green, and blue. The filters are arranged in an array.

7. A glasses-free 3D display substrate according to claim 1, characterized in that, Both the liquid crystal electrode sheet and the grating electrode sheet include several sets of strip electrodes, which are arranged in parallel and at equal intervals.

8. A glasses-free 3D display substrate according to claim 7, characterized in that, The axial direction of the strip electrode on the grating electrode sheet forms an angle with the cylindrical lens grating layer, with the angle being between 50 and 110 degrees.

9. A glasses-free 3D display device, characterized in that, Includes the naked-eye 3D display substrate as described in any one of claims 1-8.

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