Stereoscopic display device

Abstract

The application provides a kind of stereoscopic display device.The stereoscopic display device includes stereoscopic display device, it is characterized in that, including: display panel, including left eye pixel unit group and right eye pixel unit group arranged at intervals;Left eye pixel unit group and right eye pixel unit group respectively include a plurality of pixel units arranged along the first direction;Lens module, lens module is set to the light exit side of display panel, for the left eye image and right eye image generated by display panel are imaged to the preset position distance display panel;Optical control component is set to the preset position;Optical control component includes a plurality of control units, wherein a plurality of control units include the first control unit corresponding to left eye pixel unit group and the second control unit corresponding to right eye pixel unit group.The scheme of the application can effectively reduce the interference of glass substrate to light path, reduce image crosstalk, while expanding the viewing angle, improve the clarity of three-dimensional display and user viewing freedom.

Description

Technical Field

[0001] This invention relates to the field of image display technology, and in particular to a stereoscopic display device. Background Technology

[0002] With the development of technology, people's demands for visual experience are constantly increasing. Traditional two-dimensional (2D) images can no longer meet these needs. Stereoscopic display devices, which can provide near-realistic three-dimensional images, have become key to improving the quality of visual information. Human perception of three-dimensional vision originates from the interpupillary distance (average about 65mm), which causes images to arrive at both eyes from different directions when viewing objects, creating binocular parallax and thus achieving a three-dimensional effect. Currently, stereoscopic display technology is mainly divided into glasses-type and naked-eye-type. Glasses-type technology includes color-filtering, polarized, and shutter glasses. The principle of glasses-type stereoscopic display is that the display shows images for the left and right eyes, and the glasses filter the images so that the left and right eyes receive the corresponding images to form stereoscopic vision. For example, polarized glasses stereoscopic display technology is widely used because its manufacturing process is relatively simple. Existing stereoscopic display devices generally have a display unit that generates images for the left and right eyes, and an optical phase modulation unit that changes the polarization state of the light in the left and right eye images, making the polarization states of the light in the left and right eye images different. The optical phase modulator is usually composed of alternating patterned first and second regions, which adjust the polarization states of the left and right eye images respectively, and the polarization states of the two regions are perpendicular to each other. Image generation units include liquid crystal display panels (LCD), plasma display panels (PDP), and OLED display panels. Optical phase modulators often employ polarizers or polarizers with phase retardation plates, which are attached to the outside of the glass substrate of the display unit.

[0003] In existing stereoscopic display devices, the presence of a thick glass substrate between the optical phase modulator and the pixels of the image display unit easily leads to crosstalk between the left-eye and right-eye image light from the image display unit. That is, the left-eye image light enters the right eye, and the right-eye image light enters the left eye, making it difficult to obtain a clear three-dimensional image. At the same time, it causes a narrow viewing angle, which seriously affects the stereoscopic display effect and urgently needs to be improved. Summary of the Invention

[0004] This invention provides a stereoscopic display device to solve the problem of image crosstalk caused by light deflection due to the presence of a thick glass substrate between the optical phase modulator and the display unit in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention provides a stereoscopic display device, comprising:

[0007] The display panel includes a left-eye pixel unit group and a right-eye pixel unit group arranged at intervals; the left-eye pixel unit group and the right-eye pixel unit group each include a plurality of pixel units arranged along a first direction;

[0008] A lens module is disposed on the light-emitting side of the display panel and is used to image the left-eye image and the right-eye image generated by the display panel onto a preset position at a distance from the display panel, respectively.

[0009] An optical control component is disposed at the preset position; the optical control component includes multiple control units, wherein the multiple control units include a first control unit corresponding to the left eye pixel unit group and a second control unit corresponding to the right eye pixel unit group;

[0010] The first control unit is used to output the light corresponding to the left eye image image formed by the lens module in a first polarization state, and the second control unit is used to output the light corresponding to the right eye image image formed by the lens module in a second polarization state; the first polarization state is perpendicular to the second polarization state.

[0011] Optionally, the stereoscopic display device further includes:

[0012] A first polarizer, a first glass substrate, and an optically transparent adhesive are sequentially bonded together, with the first polarizer located on the light-emitting side of the display panel;

[0013] A quarter-wave plate is located on the light-emitting side of the optical control assembly;

[0014] The lens module is located at twice the focal length of the pixel on the display panel, the period of the lens module is the same as the width of the pixel unit, and the extension direction of the lens module is consistent with the optical control component.

[0015] Optionally, the optical control component includes:

[0016] The three-dimensional filter layer includes a first region and a second region with alternating parallel stripes;

[0017] The width of the first region is equal to the width of the second region;

[0018] The first region corresponds to the left eye pixel unit group;

[0019] The second region corresponds to the right eye pixel unit group.

[0020] Optionally, the stereoscopic display device further includes:

[0021] A transparent film is located between the lens module and the three-dimensional filter layer, and the thickness of the transparent film is the sum of the thickness of the first polarizer, the thickness of the first glass substrate, and the thickness of the optically transparent adhesive.

[0022] Optionally, the optical control component includes an electrically controlled phase delay unit;

[0023] The electronically controlled phase delay device is located at the preset position, which represents the position of twice the focal length of the lens module.

[0024] Optionally, the electrically controlled phase delayer includes:

[0025] A second glass substrate and a third glass substrate, wherein a liquid crystal material is disposed between the second glass substrate and the third glass substrate;

[0026] The second glass substrate and the third glass substrate are oriented at a predetermined degree, so that the electrically controlled phase delay is formed as a twisted nematic liquid crystal cell.

[0027] Optionally, the electrically controlled phase delayer further includes:

[0028] The strip electrodes and the glass substrate panel electrodes are arranged opposite to each other;

[0029] The strip electrodes are attached to the second glass substrate at predetermined intervals, and the glass substrate panel electrodes are attached to the third glass substrate; or...

[0030] The strip electrodes are attached to the third glass substrate at predetermined intervals, and the glass substrate panel electrodes are attached to the second glass substrate.

[0031] The strip electrode corresponds to the third region, and the preset interval corresponds to the fourth region; the third region corresponds to the left eye pixel unit group; and the fourth region corresponds to the right eye pixel unit group.

[0032] Optionally, the lens module includes a columnar lens array or a microlens array.

[0033] The beneficial effects of this invention are:

[0034] The stereoscopic display device of this application achieves a naked-eye 3D display effect with low crosstalk, wide viewing angle, and high definition through polarization orthogonal output, spatial optical path isolation, and precise matching of optical components, while taking into account lightweight and compatibility, and significantly improving the user experience. Attached Figure Description

[0035] Figure 1 This is one of the structural schematic diagrams of the stereoscopic display device provided in an embodiment of the present invention;

[0036] Figure 2 This is a second schematic diagram illustrating the structure of the stereoscopic display device provided in an embodiment of the present invention;

[0037] Figure 3This is a schematic diagram showing the structure of the electronically controlled phase delayer provided in an embodiment of the present invention. Detailed Implementation

[0038] To make the technical problems, technical solutions, and advantages of this invention clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0039] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0040] Reference Figure 1 As shown in the figure, an embodiment of this application provides a stereoscopic display device, comprising:

[0041] The display panel 1 includes a left eye pixel unit group 11 and a right eye pixel unit group 12 arranged at intervals; the left eye pixel unit group 11 and the right eye pixel unit group 12 each include a plurality of pixel units arranged along a first direction;

[0042] Lens module 2, which is disposed on the light-emitting side of the display panel 1, is used to image the left-eye image and the right-eye image generated by the display panel 1 onto a preset position at a distance from the display panel 1;

[0043] An optical control component is disposed at the preset position; the optical control component includes multiple control units, wherein the multiple control units include a first control unit corresponding to the left eye pixel unit group 11 and a second control unit corresponding to the right eye pixel unit group 12;

[0044] The first control unit is used to output the light corresponding to the left eye image image formed by the lens module 2 in a first polarization state, and the second control unit is used to output the light corresponding to the right eye image image formed by the lens module 2 in a second polarization state; the first polarization state is perpendicular to the second polarization state.

[0045] In this embodiment, the left-eye image outputs a first polarization state (such as left-handed circularly polarized light) through a first control unit, and the right-eye image outputs a second polarization state (such as right-handed circularly polarized light) through a second control unit, with the polarization directions of the two being orthogonal. When the user wears the corresponding polarized glasses, the left eye receives only left-handed light, and the right eye receives only right-handed light, completely isolating the left and right eye image signals, achieving precise separation of the left and right eye images, and significantly reducing crosstalk. The left and right eye pixel unit groups 12 are arranged at intervals on the display panel 1, and combined with the imaging function of the lens module 2, ensure that the optical paths of the left / right eye images are spatially separated, further reducing signal aliasing.

[0046] The lens module 2 of this application directly images onto the optical control component at a preset position, thus simplifying the optical path. Pixels and optical control units are precisely aligned: the left / right eye pixel unit group 12 is strictly aligned with the corresponding control unit (first and second control unit) to avoid image distortion or uneven brightness caused by misalignment.

[0047] The optical control components of this application are highly integrated with the display panel 1 and lens module 2, eliminating the need for additional beam splitting devices or complex optical paths. The overall device is thinner and lighter, making it suitable for portable devices such as mobile phones and tablets. The polarization beam splitting scheme of this application is compatible with mainstream 3D glasses technologies (such as cinema polarized 3D systems), allowing users to experience high-quality naked-eye 3D effects without special equipment.

[0048] Reference Figure 1 and Figure 2 As shown, the stereoscopic display device further includes:

[0049] A first polarizer 3, a first glass substrate 4, and an optically transparent adhesive 5 are sequentially bonded together, with the first polarizer 3 located on the light-emitting side of the display panel 1.

[0050] A quarter-wave plate 6 is located on the light-emitting side of the optical control assembly;

[0051] The lens module 2 is located at twice the focal length of the pixel of the display panel 1, the period of the lens module 2 is the same as the width of the pixel unit, and the extension direction of the lens module 2 is consistent with the optical control component.

[0052] In this application, Figure 1 One embodiment provided and Figure 2In another embodiment, the lens module 2 is positioned at twice the focal length of a pixel in the display panel 1 to ensure accurate imaging of light after passing through the lens, reducing optical path offset and distortion, and improving image clarity. The period of the lens module 2 is the same as the width of the pixel unit, ensuring that the light from each pixel unit can be uniformly modulated by the lens, avoiding image distortion or crosstalk caused by period mismatch. The first polarizer 3 is located on the light-emitting side of the display panel 1 and is used to convert the light emitted from the display panel into a specific polarization state (such as linearly polarized light) to provide a basic polarized light signal for subsequent optical control components. The quarter-wave plate 6 is located on the light-emitting side of the optical control components and converts linearly polarized light into circularly polarized light (such as left-handed or right-handed), further isolating the left and right eye images and reducing crosstalk rate. The extension direction of the lens module 2 is consistent with that of the optical control components, ensuring that light can directly enter the optical control components after passing through the lens module, reducing optical path loss and interference. The optical transparent adhesive 5 is used to bond the first polarizer 3 and the first glass substrate 4, ensuring a tight bond between the two, avoiding light reflection or scattering caused by air gaps, and improving optical path transmission efficiency. The first glass substrate 4 serves as a support layer, protecting the display panel 1 and the first polarizer 3, while also providing a stable optical interface to reduce optical path deviation caused by mechanical stress or temperature changes. By sequentially bonding the first polarizer 3, the first glass substrate 4, and the optically transparent adhesive 5, the overall structure is compact, forming a highly integrated optical module, reducing the device thickness and improving portability and durability.

[0053] This application achieves high-precision imaging, low crosstalk, and high-stability naked-eye 3D display effects by optimizing the lens module position, matching period, enhancing polarization control, and integrating optical components, while also improving the device's structural compactness and durability.

[0054] Reference Figure 1 As shown, the optical control component includes:

[0055] The three-dimensional filter layer 7 includes a first region and a second region with alternating parallel stripes;

[0056] The width of the first region is equal to the width of the second region;

[0057] The first region corresponds to the left eye pixel unit group 11;

[0058] The second region corresponds to the right eye pixel unit group 12.

[0059] In this embodiment, the optical modulation component performs optical modulation in the form of a three-dimensional filter layer 7. The first region corresponds to the left-eye pixel unit group 11, and the second region corresponds to the right-eye pixel unit group 12, ensuring that the image signals for the left and right eyes are transmitted through their respective regions, avoiding signal aliasing. The widths of the first and second regions are equal, ensuring uniform light distribution in the left and right eye images and further reducing crosstalk. The strip-shaped structure design effectively controls the direction of light propagation, ensuring spatial separation of the left and right eye images, improving image clarity and contrast. Through the regional division of the filter layer, light can be precisely modulated, reducing scattering and reflection, making image details sharper. In this application, the left and right eye images are transmitted through different regions, forming independent parallax information, enhancing stereoscopic effect and immersion, and improving user experience. The alternating strip-shaped structure design expands the effective viewing angle range, allowing users to maintain a clear 3D effect even when moving their heads within a certain range. The three-dimensional filter layer 7 is directly integrated with the display panel, eliminating the need for additional complex optical components, reducing device thickness and weight, and making it suitable for portable devices. The alternating strip-shaped structure design facilitates mass production, improving manufacturing efficiency and yield.

[0060] This application achieves precise separation of left and right eye images, reduces crosstalk, and improves image clarity and contrast by setting up a first and second region arranged in alternating parallel stripes. At the same time, it enhances the 3D display effect and structural compactness, thereby improving the performance and user experience of the naked-eye 3D display device.

[0061] Furthermore, refer to Figure 1 As shown, the stereoscopic display device further includes:

[0062] A transparent film 8 is located between the lens module 2 and the three-dimensional filter layer 7, and the thickness of the transparent film 8 is the sum of the thickness of the first polarizer 3, the thickness of the first glass substrate 4, and the thickness of the optical transparent adhesive 5.

[0063] In this application, the thickness of the transparent film 8 is consistent with the total thickness of the first polarizer 3, the first glass substrate 4, and the optically transparent adhesive 5, ensuring that the light path will not be refracted or reflected due to thickness differences during transmission, thus reducing light loss and image distortion. As an intermediate layer, the transparent film 8 can precisely align the light paths of the lens module 2 and the three-dimensional filter layer 7, preventing light deviation or scattering and improving image clarity and contrast. The transparent film 8 provides stable support for the lens module 2 and the three-dimensional filter layer 7, preventing displacement or deformation of optical components due to mechanical stress or temperature changes. Through thickness matching, the transparent film 8 can evenly distribute the pressure from the optical components in each layer, improving the durability and reliability of the overall structure. The thickness of the transparent film 8 is designed to be the sum of the thicknesses of all layers, facilitating standardized production during manufacturing, reducing process complexity, and improving production efficiency. By precisely controlling the thickness of the transparent film 8, accumulated errors during assembly can be reduced, ensuring accurate alignment of optical components. As an isolation layer, the transparent film 8 can effectively prevent light interference between the lens module 2 and the three-dimensional filter layer 7, reducing crosstalk rate and improving the 3D display effect. The uniform thickness design of the transparent film 8 ensures that light is evenly distributed during transmission, avoiding uneven brightness or dark areas. The transparent film 8 in this application achieves high-definition, low-crosstalk 3D display effects by optimizing light path transmission, enhancing structural stability, simplifying manufacturing processes, and improving optical performance, while also improving the stability and manufacturing efficiency of the device.

[0064] Optionally, the lens module 2 includes a columnar lens array or a microlens array.

[0065] exist Figure 1 In the specific embodiment shown, the display panel 1 includes a left-eye pixel unit group 11 and a right-eye pixel unit group 12 arranged at intervals. The pixel units in the left-eye pixel unit group 11 and the right-eye pixel unit group 12 generally contain RGB sub-pixels. Other components controlling the pixel display are not shown, but their display principles are known to those skilled in the art.

[0066] Optical transparent adhesives can be OCA or UV-curable adhesives. The lens module can be a lenticular lens array, with the period of the lenticular lens array being the same as the width of the subpixel. The lenticular lens array is placed at twice the focal length of the display unit pixel. The extension direction of the lenticular lens array is consistent with the 3D filter layer. The transparent film can also be replaced with glass, used to support the 3D filter layer at a distance of twice the focal length of the lenticular lens array, while also fixing the 3D filter layer.

[0067] The 3D filter layer consists of a first region patterned to adjust the polarization state of the left-eye image and a second region patterned to adjust the polarization state of the right-eye image. These two regions are arranged in alternating parallel stripes. The first and second regions have equal widths, the same as the period of the cylindrical lens array. The polarization direction of the first region is consistent with the polarization direction of the first polarizer. The second region provides a 90-degree phase retardation, which allows linearly polarized light passing through this region to be converted into polarized light perpendicular to the polarization state of the first region. The first region corresponds to odd-numbered rows (columns) of pixels, and the second region corresponds to even-numbered rows (columns) of pixels. A four-molecule waveplate is used to form left-handed and right-handed circularly polarized light.

[0068] Figure 1 The working principle of the structure: Light emitted from the display panel's light source is converted into image light after passing through the display panel 1, which includes the spaced-apart left-eye pixel unit group 11 and right-eye pixel unit group 12. The left-eye pixel unit group 11 can be represented as the pixel units in the odd-numbered rows (columns) on the display panel 1; the right-eye pixel unit group 12 can be represented as the pixel units in the even-numbered rows (columns) on the display panel 1. The left-eye pixel unit group 11 and right-eye pixel unit group 12 respectively present the left-eye image and the right-eye image. The left and right eye image light is imaged by the lens module. Since the pixels of the display panel are placed at twice the focal length of the lens, according to the lens imaging formula, an inverted real image of the same size is formed. The formed real image coincides with the first and second regions of the 3D filter layer, respectively. Finally, after passing through a four-molecule waveplate, left and right circularly polarized light is formed. A stereoscopic image without crosstalk can be seen through left and right circularly polarized glasses.

[0069] Reference Figure 2 As shown, the optical control component includes an electrically controlled phase delay unit 9;

[0070] The electronically controlled phase delay 9 is located at the preset position, which represents the position of twice the focal length of the lens module 2.

[0071] In this application, the electrically controlled phase delay unit 9 is positioned at twice the focal length, enabling precise phase modulation of the light passing through the lens module 2. This ensures that the light maintains consistent phase characteristics during transmission, reducing optical path distortion. By adjusting the phase delay unit, phase errors that may be introduced by the lens module 2 can be compensated, improving image clarity and contrast. The electrically controlled phase delay unit 9 effectively separates the light signals from the left and right eyes, reducing image crosstalk and enhancing the stereoscopic and immersive experience of 3D displays. Dynamic adjustment of the phase delay unit optimizes the direction of light propagation, expanding the effective viewing angle and ensuring a clear 3D effect for users viewing from different angles. The electrically controlled phase delay unit 9 can adjust the phase delay in real time as needed, adapting to different display scenarios or user requirements, improving system flexibility and adaptability. Integrating the phase delay unit at twice the focal length reduces the need for additional optical components, simplifies optical path design, and lowers the complexity and cost of the device.

[0072] Furthermore, refer to Figure 2 and Figure 3 As shown, the electronically controlled phase delayer 9 includes:

[0073] A second glass substrate 91 and a third glass substrate 92, wherein a liquid crystal material 93 is disposed between the second glass substrate 91 and the third glass substrate 92;

[0074] The second glass substrate 91 and the third glass substrate 92 are aligned at a predetermined angle, such that the electrically controlled phase delayer 9 is formed as a twisted nematic liquid crystal cell. Here, the predetermined angle is 90 degrees.

[0075] Specifically, the electronically controlled phase delayer 9 further includes:

[0076] The strip electrode 94 and the glass substrate panel electrode 95 are arranged opposite to each other;

[0077] The strip electrodes 94 are attached to the second glass substrate 91 at predetermined intervals, and the glass substrate panel electrodes 95 are attached to the third glass substrate 92; or,

[0078] The strip electrodes 94 are attached to the third glass substrate 92 at a predetermined interval, and the glass substrate panel electrodes 95 are attached to the second glass substrate 91.

[0079] The strip electrode 94 corresponds to the third region, and the preset interval corresponds to the fourth region; the third region corresponds to the left eye pixel unit group 11; and the fourth region corresponds to the right eye pixel unit group 12.

[0080] In this embodiment, the second glass substrate 91 and the third glass substrate 92 serve as the supporting structure for the electrically controlled phase delay device 9, with liquid crystal material 93 filling the space between them to form a liquid crystal cell. The liquid crystal material exhibits optical anisotropy, and its molecular alignment can be controlled by an electric field, thereby altering the phase delay of light. The second glass substrate 91 and the third glass substrate 92 are aligned at a predetermined angle, causing the liquid crystal molecules to form a twisted arrangement between the two substrates. This structure enables more flexible phase modulation. Here, the second glass substrate 91 is the lower glass substrate, and the third glass substrate 92 is the upper glass substrate. The upper and lower glass substrates are aligned at 90 degrees, making 95 a twisted nematic liquid crystal cell.

[0081] Strip electrodes 94 are attached to the second glass substrate 91 or the third glass substrate 92 at predetermined intervals to generate a local electric field. Glass substrate panel electrodes 95 are attached to another glass substrate and positioned opposite the strip electrodes 94 to form an electric field distribution. The strip electrodes 94 correspond to the third region, which corresponds to the left eye pixel unit group 11. The predetermined intervals between the strip electrodes 94 correspond to the fourth region, which corresponds to the right eye pixel unit group 12.

[0082] The electric field controlling the liquid crystal molecule alignment in this application: When a voltage is applied between the strip electrode 94 and the glass substrate panel electrode 95, an electric field is formed in the liquid crystal material 93. The electric field changes the alignment direction of the liquid crystal molecules, thereby changing the optical properties (such as refractive index) of the liquid crystal material, and thus achieving phase delay modulation of light.

[0083] This application separates the left and right eye signals: Left eye signal: Under the influence of an electric field, the liquid crystal molecules in the third region corresponding to the bar electrode 94 (corresponding to the left eye pixel unit group 11) change their arrangement, modulating the phase of the left eye light. Right eye signal: Since there is no electric field, the liquid crystal molecules in the fourth region corresponding to the preset interval between the bar electrodes 94 (corresponding to the right eye pixel unit group 12) maintain their original arrangement, and the phase of the right eye light is unaffected. Through this design, the image signals for the left and right eyes can be accurately separated, reducing crosstalk.

[0084] This application achieves precise adjustment of the phase delay of light by dynamically controlling the alignment of liquid crystal molecules through adjusting the voltage applied to the strip electrode 94 and the glass substrate panel electrode 95. This dynamic modulation capability enables the electrically controlled phase delay unit 9 to adapt to different display requirements, such as optimizing 3D display effects or expanding the viewing angle range.

[0085] The electrically controlled phase delay device 9 of this application achieves precise modulation of the light phase by controlling the alignment of liquid crystal molecules through an electric field. Furthermore, the design of the strip electrode and the glass substrate panel electrode separates the left and right eye signals, reducing crosstalk and improving the 3D display effect. Its dynamic modulation capability further enhances the system's flexibility and adaptability.

[0086] Specifically, Figure 2 The working principle of the structure shown is as follows: Light emitted from the display panel's light source is converted into image light through the pixel layer. The pixel layer has multiple pixels arranged in an array, and the odd-numbered rows (columns) and even-numbered rows (columns) of pixels on the display panel represent the left-eye image L and the right-eye image R, respectively. The left and right eye image light is imaged by a lens array. Since the display panel pixels are located at twice the focal length of the lens, according to the lens imaging formula, an inverted real image of the same size is formed. The formed real image is located in the middle of the electronically controlled phase retarder. Assuming that the left and right eye image light entering the retarder is P-polarized light, a saturation voltage sufficient to make the liquid crystal molecules stand upright is applied to all the odd-numbered row (column) electrodes. The twisting effect of the liquid crystal layer disappears, and the polarized light does not change its original polarization state when passing through the odd-numbered rows (columns), while the polarized light passing through the even-numbered rows (columns) becomes S-polarized after being twisted by the liquid crystal. Finally, after passing through a four-molecule waveplate, left and right circularly polarized light is formed. A stereoscopic image without crosstalk can be seen through left and right circularly polarized glasses.

[0087] In summary, the structure of the stereoscopic display device of this application achieves low crosstalk, wide viewing angle, and high definition naked-eye 3D display effect through polarization orthogonal output, spatial optical path isolation, and precise matching of optical components, while taking into account lightweight and compatibility, significantly improving the user experience.

[0088] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0091] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0092] The above describes the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also within the scope of protection of the present invention.

Claims

1. A stereoscopic display device, characterized in that, include: The display panel includes a left-eye pixel unit group and a right-eye pixel unit group that are spaced apart. The left eye pixel unit group and the right eye pixel unit group each include a plurality of pixel units arranged along the first direction; A lens module is disposed on the light-emitting side of the display panel and is used to image the left-eye image and the right-eye image generated by the display panel onto a preset position at a distance from the display panel, respectively. An optical control component is disposed at the preset position; the optical control component includes multiple control units, wherein the multiple control units include a first control unit corresponding to the left eye pixel unit group and a second control unit corresponding to the right eye pixel unit group; The first control unit is used to output the light corresponding to the left eye image image formed by the lens module in a first polarization state, and the second control unit is used to output the light corresponding to the right eye image image formed by the lens module in a second polarization state; the first polarization state is perpendicular to the second polarization state.

2. The stereoscopic display device according to claim 1, characterized in that, The stereoscopic display device further includes: A first polarizer, a first glass substrate, and an optically transparent adhesive are sequentially bonded together, with the first polarizer located on the light-emitting side of the display panel; A quarter-wave plate is located on the light-emitting side of the optical control assembly; The lens module is located at twice the focal length of the pixel on the display panel, the period of the lens module is the same as the width of the pixel unit, and the extension direction of the lens module is consistent with the optical control component.

3. The stereoscopic display device according to claim 2, characterized in that, The optical control component includes: The three-dimensional filter layer includes a first region and a second region with alternating parallel stripes; The width of the first region is equal to the width of the second region; The first region corresponds to the left eye pixel unit group; The second region corresponds to the right eye pixel unit group.

4. The stereoscopic display device according to claim 3, characterized in that, The stereoscopic display device further includes: A transparent film is located between the lens module and the three-dimensional filter layer, and the thickness of the transparent film is the sum of the thickness of the first polarizer, the thickness of the first glass substrate, and the thickness of the optically transparent adhesive.

5. The stereoscopic display device according to claim 1, characterized in that, The optical control component includes an electrically controlled phase delayer; The electronically controlled phase delay device is located at the preset position, which represents the position of twice the focal length of the lens module.

6. The stereoscopic display device according to claim 5, characterized in that, The electronically controlled phase delay includes: A second glass substrate and a third glass substrate, wherein a liquid crystal material is disposed between the second glass substrate and the third glass substrate; The second glass substrate and the third glass substrate are oriented at a predetermined degree, so that the electrically controlled phase delay is formed as a twisted nematic liquid crystal cell.

7. The stereoscopic display device according to claim 6, characterized in that, The electronically controlled phase delay also includes: The strip electrodes and the glass substrate panel electrodes are arranged opposite to each other; The strip electrodes are attached to the second glass substrate at predetermined intervals, and the glass substrate panel electrodes are attached to the third glass substrate; or... The strip electrodes are attached to the third glass substrate at predetermined intervals, and the glass substrate panel electrodes are attached to the second glass substrate. The strip electrode corresponds to the third region, and the preset interval corresponds to the fourth region; the third region corresponds to the left eye pixel unit group; and the fourth region corresponds to the right eye pixel unit group.

8. The stereoscopic display device according to claim 1, characterized in that, The lens module includes a columnar lens array or a microlens array.

Images