Display device

Abstract

The utility model discloses a display device which comprises a display body which comprises a first area and a second area, the first area emits first image light, and the second area emits second image light; the optical layer is arranged on the light emitting side of the display body, the projection of the optical layer covers the second area, and the optical layer is used for changing the polarization direction of second image light rays from the second area after passing through the optical layer, so that the polarization direction of the second image light rays passing through the optical layer is different from that of the first image light rays; the first polarization element and the second polarization element are arranged corresponding to the two eyes of a watching object respectively, the first polarization element is used for enabling the first image light from the first area to penetrate through and enter the left eye or the right eye, and the second polarization element is used for enabling the second image light from the optical layer to penetrate through and enter the right eye or the left eye. According to the utility model, the object to be watched can watch the stereo image based on the image light received by the two eyes, so that the stereo vision effect is realized, the structure is simpler, and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of optical systems, and in particular to a display device. Background Technology

[0002] With the development of technology, vision charts with stereoscopic vision effects have been gradually applied. These vision charts use polarization to achieve stereoscopic vision by generating two types of linearly polarized light with mutually perpendicular polarization directions.

[0003] In existing technologies, one approach involves using a high-precision film-coating process to generate linearly polarized light with one polarization direction in odd-numbered rows and linearly polarized light with another polarization direction in even-numbered rows. The polarization directions of the two types of linearly polarized light are perpendicular to each other. However, this type of display requires custom manufacturing, has reduced resolution, and is expensive to produce. Another approach uses two displays, mounted vertically, with the polarization directions of the light emitted by the two displays perpendicular to each other. A stereoscopic effect is then achieved through coupling. However, this method is structurally more complex and also increases costs. Utility Model Content

[0004] The purpose of this invention is to provide a display device that can achieve a stereoscopic effect, and has a simple structure and low cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A display device, comprising:

[0007] The display body includes a first region and a second region, wherein the first region is used to emit a first image light and the second region is used to emit a second image light.

[0008] An optical layer is disposed on the light-emitting side of the display body, and the projection of the optical layer on the display body covers the second region of the display body, for causing the polarization direction of the second image light from the second region to change after passing through the optical layer, so that the polarization direction of the second image light passing through the optical layer is different from the polarization direction of the first image light.

[0009] The first polarizing element and the second polarizing element are respectively configured to correspond to the two eyes of the viewing object. The first polarizing element is used to allow the first image light from the first region to pass through and enter the left / right eye, and the second polarizing element is used to allow the second image light from the optical layer to pass through and enter the right / left eye.

[0010] Optionally, the optical layer is used to delay the phase of the second image light rays, thereby changing the polarization direction of the second image light rays.

[0011] Optionally, the optical layer includes a phase retardation film.

[0012] Optionally, it also includes:

[0013] A first deflection portion is disposed on the side of the first polarizing element near the display body, and is used to deflect the first virtual image formed when the first image light from the first region passes through the first deflection portion and enters the left / right eye toward the second region.

[0014] Or / and, a second deflection portion is disposed on the side of the second polarizing element near the display body, for causing the second image light from the optical layer to be deflected toward the first region when it passes through the second deflection portion and enters the right / left eye.

[0015] Optionally, it also includes:

[0016] A first deflection portion is disposed on the side of the first polarizing element near the display body, for causing the first image light from the first region to pass through the first deflection portion and enter the left / right eye, so that the first virtual image formed is deflected toward the second region, and the first deflection portion causes the center of the first virtual image formed to coincide with the center of the second virtual image formed when the second image light from the optical layer enters the right / left eye.

[0017] Optionally, it also includes:

[0018] The second deflection portion is disposed on the side of the second polarizing element near the display body, and is used to deflect the second virtual image formed when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye toward the first region, and the second deflection portion makes the center of the formed second virtual image coincide with the center of the first virtual image formed when the first image light from the first region enters the left / right eye.

[0019] Optionally, it also includes:

[0020] A first deflection portion is disposed on the side of the first polarizing element near the display body, and is used to deflect the first virtual image formed when the first image light from the first region passes through the first deflection portion and enters the left / right eye toward the second region.

[0021] The second deflection portion is disposed on the side of the second polarizing element near the display body, and is used to deflect the second virtual image formed when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye toward the first region;

[0022] The center of the first virtual image formed by the first deflection portion and the center of the second virtual image formed by the second deflection portion coincide.

[0023] Optionally, it also includes:

[0024] A first deflection portion is disposed on the side of the first polarizing element near the display body, so that when the first image light from the first region passes through the first deflection portion and enters the left / right eye, the center of the first virtual image formed coincides with the center of the display body;

[0025] The second deflection portion is disposed on the side of the second polarizing element near the display body, so that when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye, the center of the second virtual image formed coincides with the center of the display body.

[0026] Optionally, the first deflection portion includes an optical wedge, or / and the second deflection portion includes an optical wedge.

[0027] Optionally, the display body includes a liquid crystal display layer, the first image light is linearly polarized light, and the second image light is linearly polarized light.

[0028] As can be seen from the above technical solution, the display device provided by this utility model includes a display body, an optical layer, a first polarizing element, and a second polarizing element. The display body includes a first region and a second region. The first region is used to emit first image light, and the second region is used to emit second image light. The optical layer is disposed on the light-emitting side of the display body, and its projection on the display body covers the second region. It is used to change the polarization direction of the second image light from the second region after passing through the optical layer, so that the polarization direction of the second image light passing through the optical layer is different from the polarization direction of the first image light. The first polarizing element and the second polarizing element are respectively disposed corresponding to the two eyes of the viewing object. The first polarizing element is used to allow the first image light from the first region to pass through and enter the left / right eye, and the second polarizing element is used to allow the second image light from the optical layer to pass through and enter the right / left eye.

[0029] The display device of this invention has an optical layer on the light-emitting side of the display body, which changes the polarization direction of the second image light from the second region of the display body. A first polarization element and a second polarization element are respectively provided, corresponding to the eyes of the viewing object. This allows the first image light from the first region and the second image light from the optical layer to enter the viewing object's eyes. Since the polarization direction of the second image light after passing through the optical layer is different from that of the first image light, the viewing object can see a stereoscopic image based on the image light received by both eyes, thus achieving a stereoscopic effect. Compared with existing solutions, this avoids the need for two vertically mounted displays, resulting in a simpler structure and lower cost. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a display device provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram illustrating a display device according to an embodiment of the present invention.

[0033] Figure 3 A schematic diagram illustrating the principle of a display device for achieving stereoscopic vision according to an embodiment of this utility model;

[0034] Figure 4 A schematic diagram illustrating the principle of an image shifting via a deflection portion in a display device according to an embodiment of the present invention;

[0035] Figure 5-1 A first region image and a second region image of a display device are provided in one embodiment of the present invention;

[0036] Figure 5-2 An image viewed by a display device provided in one embodiment of the present invention.

[0037] The reference numerals in the accompanying drawings include:

[0038] 100 - Display body, 101 - First region, 102 - Second region, 103 - Optical layer, 104 - First polarization element, 105 - Second polarization element, 106 - First deflection part, 107 - Second deflection part, 201 - Left eye, 202 - Right eye, 203 - First visual target, 204 - Second visual target, 205 - Fusion visual target. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0040] This embodiment provides a display device, including:

[0041] The display body includes a first region and a second region, wherein the first region is used to emit a first image light and the second region is used to emit a second image light.

[0042] An optical layer is disposed on the light-emitting side of the display body, and the projection of the optical layer on the display body covers the second region of the display body, for causing the polarization direction of the second image light from the second region to change after passing through the optical layer, so that the polarization direction of the second image light passing through the optical layer is different from the polarization direction of the first image light.

[0043] The first polarizing element and the second polarizing element are respectively configured to correspond to the two eyes of the viewing object. The first polarizing element is used to allow the first image light from the first region to pass through and enter the left / right eye, and the second polarizing element is used to allow the second image light from the optical layer to pass through and enter the right / left eye.

[0044] The first area of ​​the display body emits a first image light, which can pass through a first polarizing element and enter the left / right eye of the viewer. The second area of ​​the display body emits a second image light, which changes polarization direction after passing through an optical layer, and the second image light with the changed polarization direction can pass through a second polarizing element and enter the right / left eye of the viewer.

[0045] In this embodiment of the display device, the display body is provided with a first region and a second region. An optical layer is provided on the light-emitting side of the display body to change the polarization direction of the second image light from the second region of the display body. A first polarization element and a second polarization element are respectively provided corresponding to the eyes of the viewing object, so that the first image light from the first region and the second image light from the optical layer enter the eyes of the viewing object respectively. Since the polarization direction of the second image light after passing through the optical layer is different from that of the first image light, the viewing object can see a stereoscopic image based on the image light received by both eyes. Thus, the display device achieves a stereoscopic effect. Compared with existing solutions, this avoids the need for two vertically mounted displays, resulting in a simpler structure and lower cost.

[0046] For example, refer to Figure 1 , Figure 1 This is a schematic diagram of a display device provided in one embodiment. Figure 2This is a schematic diagram illustrating a display device according to an embodiment. As shown in the figure, the display device includes a display body 100, which includes a first region 101 and a second region 102. An optical layer 103 is disposed on the light-emitting side of the display body 100. It also includes a first polarizing element 104 and a second polarizing element 105. The first polarizing element 104 is corresponding to the left eye 201 of the viewing object, and the second polarizing element 105 is corresponding to the right eye 202 of the viewing object.

[0047] In this embodiment, the structure of the display body 100 is not limited. In some embodiments, the display body 100 may include a liquid crystal display layer, which has the advantages of low voltage, low power consumption, and a flat panel structure.

[0048] In some embodiments, the optical layer 103 is used to delay the phase of the second image light rays, thereby changing the polarization direction of the second image light rays. The phase delay caused by the optical layer 103 is sufficient to change the polarization direction of the second image light rays so that it differs from that of the first image light rays. This ensures that when the first image light rays and the polarized second image light rays enter the viewing eyes, the viewing object can perceive a stereoscopic image based on the image light received by both eyes. In some embodiments, the optical layer 103 may include a phase retardation film. Using a thinner film structure helps reduce the thickness of the display device and lowers costs.

[0049] The first polarizing element 104 allows first image light from the first region 101 to pass through, thereby allowing the first image light from the first region 101 to enter the left / right eye. The second polarizing element 105 allows second image light from the optical layer 103, whose polarization direction has been changed, to pass through, thereby allowing the second image light with its changed polarization direction to enter the right / left eye. For the viewing object, what is seen is a fused image of the first virtual image formed when the first image light from the first region 101 enters the left / right eye and the second virtual image formed when the second image light from the optical layer 103, whose polarization direction has been changed, enters the right / left eye. The first virtual image can be understood as the image formed by the backward extension of the first image light entering the left / right eye, and the second virtual image can be understood as the image formed by the backward extension of the second image light entering the right / left eye. For example, see [reference needed]. Figure 3 , Figure 3 The figure shows a schematic diagram illustrating the principle of stereoscopic vision achieved by a display device in one embodiment. As shown, a first viewpoint 203 is a viewpoint in a first image, and a second viewpoint 204 is a viewpoint in a second image corresponding to the first viewpoint 203. The first image is the image to be displayed corresponding to the light rays of the first image, and the second image is the image to be displayed corresponding to the light rays of the second image.

[0050] For the object being viewed, the first virtual image formed when the light from the first image enters the left eye 201 and the second virtual image formed when the light from the second image enters the right eye 202 are fused together. The first visual target 203 and the second visual target 204 correspond to each other in the fused image, forming a fused visual target 205. The fused visual target 205 has the effect of a stereoscopic image.

[0051] In some embodiments, the display device may further include a first deflection portion 106 disposed on the side of the first polarizing element 104 near the display body 100, for causing the first image light from the first region 101 to pass through the first deflection portion 106 and enter the left / right eye, so that the first virtual image formed is deflected toward the second region 102. In this embodiment, the first deflection portion 106 is disposed corresponding to the first polarizing element 104. The first image light from the first region 101 passes through the first deflection portion 106 and through the first polarizing element 104 to enter the left / right eye. The first deflection portion 106 can deflect the first image light from the first region 101 when it passes through the first deflection portion 106, causing a change in the propagation direction of the first image light when it passes through the first deflection portion 106. This causes the first virtual image formed when the first image light from the first region 101 enters the left / right eye to be positionally offset relative to the first virtual image formed without passing through the first deflection portion 106, thus causing the first virtual image to be deflected toward the second region 102. This allows the first and second virtual images to be closer together when viewed, resulting in better image fusion and optimized stereoscopic effect, thus improving the user experience. (For reference) Figure 1 and Figure 2 As shown, a first deflection portion 106 is provided on the side of the first polarizing element 104 near the display body 100.

[0052] In some embodiments, the display device may further include a first deflection portion 106 disposed on the side of the first polarizing element 105 near the display body 100. This deflection portion 106 causes the first image light from the first region 101 to pass through the first deflection portion 106 and enter the left / right eye, resulting in a first virtual image that is deflected towards the second region 102. Furthermore, the first deflection portion 106 causes the center of the first virtual image to coincide with the center of the second virtual image formed when the second image light from the optical layer 103 enters the right / left eye. This improves the image fusion effect between the first and second virtual images seen by the viewer, optimizes the stereoscopic effect, and enhances the user experience.

[0053] The center of the first virtual image corresponds to the center of the first image, and the center of the second virtual image corresponds to the center of the second image. The displayed content in the first image corresponds to the displayed content in the second image. The displayed content in the first image can be arranged with the center of the first image as a reference, and the displayed content in the second image can be arranged with the center of the second image as a reference. For example, if the display device is applied to a vision chart, each optotype in the first image can be arranged with the center of the first image as a reference, and each optotype in the second image can be arranged with the center of the second image as a reference, so that any optotype in the first image corresponds to an optotype in the second image. Therefore, by setting the first deflection portion 106 so that the center of the first virtual image formed by the light rays of the first image coincides with the center of the second virtual image formed by the light rays of the second image, any optotype in the first virtual image can correspond to the corresponding optotype in the second virtual image.

[0054] In some embodiments, the display device may further include a second deflection portion 107 disposed on the side of the second polarizing element 105 near the display body 100, for causing the second image light from the optical layer 103 to pass through the second deflection portion 107 and enter the right / left eye, so that the resulting second virtual image is deflected toward the first region 101. In this embodiment, the second deflection portion 107 is disposed corresponding to the second polarizing element 105. The second image light from the optical layer 103, after its polarization direction has been changed, passes through the second deflection portion 107 and through the second polarizing element 105 to enter the right / left eye. The second deflection portion 107 can deflect the second image light from the optical layer 103, causing a change in the propagation direction of the second image light when it passes through the second deflection portion 107. This results in a positional shift in the second virtual image formed when the second image light from the optical layer 103 enters the right / left eye compared to the second virtual image formed without passing through the second deflection portion 107, causing the second virtual image to be deflected toward the first region 101. This allows the second virtual image to be closer to the first virtual image when viewed by the viewer, resulting in a better image fusion effect between the two images, optimizing the stereoscopic effect and improving the user experience. (For reference) Figure 1 and Figure 2 As shown, a second deflection portion 107 is provided on the side of the second polarizing element 105 near the display body 100.

[0055] In some embodiments, the display device may further include a second deflection portion 107 disposed on the side of the second polarizing element 105 near the display body 100. This second deflection portion 107 causes the second image light from the optical layer 103 to pass through the second deflection portion 107 and enter the right / left eye, resulting in a second virtual image that is deflected towards the first region 101. Furthermore, the second deflection portion 107 ensures that the center of the formed second virtual image coincides with the center of the first virtual image formed when the first image light from the first region 101 enters the left / right eye. This improves the image fusion effect between the first and second virtual images, optimizing the stereoscopic effect and enhancing the user experience. For example, when the display device is applied to a vision chart, the optotypes in the first image can be arranged with the center of the first image as a reference, and the optotypes in the second image can be arranged with the center of the second image as a reference, so that any optotype in the first image corresponds to any optotype in the second image. The center of the first virtual image corresponds to the center of the first image, and the center of the second virtual image corresponds to the center of the second image. Therefore, by setting the second deflection part 107 so that the center of the second virtual image formed by the light rays of the second image coincides with the center of the first virtual image formed by the light rays of the first image, any viewpoint in the second virtual image can correspond to the corresponding viewpoint in the first virtual image.

[0056] In some embodiments, the display device may further include:

[0057] The first deflection portion 106 is disposed on the side of the first polarizing element 104 near the display body 100, and is used to deflect the first image light from the first region 101 towards the second region 102 when it passes through the first deflection portion 106 and enters the left / right eye.

[0058] The second deflection portion 107 is disposed on the side of the second polarizing element 105 near the display body 100, and is used to deflect the second virtual image formed when the second image light from the optical layer 103 passes through the second deflection portion 107 and enters the right / left eye towards the first region 101.

[0059] In this way, the first and second virtual images formed when the viewer sees the image are closer together, resulting in a better image fusion effect between the first and second virtual images, optimizing the stereoscopic effect, making the stereoscopic effect more natural and comfortable, and improving the user experience for the viewer.

[0060] For example, refer to Figure 4 , Figure 4The figure illustrates the principle of an embodiment of a display device that uses a deflection section to shift an image. As shown, first image light from a first region 101 passes sequentially through a first deflection section 106 and a first polarizing element 104 before entering the left eye 201. The first deflection section 106 deflects the first image light as it passes through, thus changing its propagation direction. This causes the first virtual image formed by the backward extension of the first image light entering the left eye 201 to shift, moving its position closer to the second region 102. Second image light, after passing through the optical layer 103 and changing its polarization direction, passes sequentially through a second deflection section 107 and a second polarizing element 105 before entering the right eye 202. The second deflection section 107 deflects the second image light as it passes through, thus changing its propagation direction. This causes the second virtual image formed by the backward extension of the second image light entering the right eye 202 to shift, moving its position closer to the first region 101.

[0061] Because the display body 100 is divided into a first region 101 and a second region 102, the first region 101 emits a first image light, and the second region 102 emits a second image light. The first region 101 displays the first image, and the second region 102 displays the second image. The first image light passes through the first polarization element 104 and enters only the left / right eye, while the second image light passes through the second polarization element 105 and enters only the right / left eye. If the first deflection part 106 or the second deflection part 107 is not provided, there will be a certain gap between the first virtual image formed by the first image light entering the left / right eye and the second virtual image formed by the second image light entering the right / left eye. Providing the first deflection part 106 or the second deflection part 107 can reduce the gap between the first and second virtual images, resulting in a better image fusion effect when the first and second virtual images are fused together, thus optimizing the stereoscopic effect.

[0062] In some embodiments, where the display device includes a first deflection portion 106 and a second deflection portion 107, the center of the first virtual image formed by the first deflection portion 106 and the center of the second virtual image formed by the second deflection portion 107 coincide. This allows for better image fusion between the first and second virtual images when viewed by the viewer, optimizing the stereoscopic effect and improving the user experience.

[0063] In some embodiments, the display device may further include: a first deflection portion 106, disposed on the side of the first polarizing element 104 near the display body 100, for causing the center of the first virtual image formed when the first image light from the first region 101 passes through the first deflection portion 106 and enters the left / right eye to coincide with the center of the display body 100; and a second deflection portion 107, disposed on the side of the second polarizing element 105 near the display body 100, for causing the center of the second virtual image formed when the second image light from the optical layer 103 passes through the second deflection portion 107 and enters the right / left eye to coincide with the center of the display body 100. By setting the first deflection portion 106 to make the center of the formed first virtual image coincide with the center of the display body 100, and setting the second deflection portion 107 to make the center of the formed second virtual image coincide with the center of the display body 100, the centers of the formed first virtual image, the formed second virtual image, and the center of the display body 100 all coincide. When the viewing object's eyes view the display body 100 through the first polarization element 104 and the second polarization element 105, the intersection of the visual axes of the two eyes tends to be located at the center of the display body 100. Therefore, the center of the first virtual image, the center of the second virtual image, and the center of the display body 100 coincide, which can optimize the stereoscopic effect and improve the user experience of the viewing object.

[0064] In an embodiment of the display device including a first deflection portion 106 and a second deflection portion 107, the offset distance of the first virtual image formed by the first deflection portion 106 may be consistent with the offset distance of the second virtual image formed by the second deflection portion 107.

[0065] In some embodiments, where the display device includes a first deflection portion 106 and a second deflection portion 107, the first deflection portion 106 or the second deflection portion 107 satisfies the relationship: P = 100 * d / L. Here, P represents the offset distance generated when light passes through the first deflection portion 106 / second deflection portion 107, in centimeters per meter (cm / m); d represents the distance from the center of the first / second region to the center of the display body; and L represents the distance between the display body and the first deflection portion 106 / second deflection portion 107.

[0066] In some embodiments, if only the first deflection portion 106 is provided, the relationship P = 2 * 100 * d / L is satisfied. Here, P represents the offset distance generated by the first deflection portion 106 when light passes through it, in centimeters per meter (cm / m), d represents the distance from the center of the first area to the center of the display body, and L represents the distance between the display body and the first deflection portion 106. If only the second deflection portion 107 is provided, the relationship P = 2 * 100 * d / L is satisfied. Here, P represents the offset distance generated by the second deflection portion 107 when light passes through it, in centimeters per meter (cm / m), d represents the distance from the center of the second area to the center of the display body, and L represents the distance between the display body and the second deflection portion 107.

[0067] In some embodiments, the first deflection portion 106 includes an optical wedge, and / or the second deflection portion 107 includes an optical wedge. P represents the optical wedge prism power. The first deflection portion 106 and / or the second deflection portion 107 may also be a prism or a reflector.

[0068] For example, refer to Figure 5-1 and Figure 5-2 , Figure 5-1 A first region image and a second region image of a display device are provided in one embodiment. Figure 5-2 An image viewed by a display device provided in one embodiment. Figure 5-1 The left image is the first image, i.e., the image displayed in the first region 101. Figure 5-1 The right image shows the second image, i.e., the image displayed in the second region 102. The first image displayed in the first region 101 has three viewpoints, A1, B1, and C1. The second image displayed in the second region 102 has three corresponding viewpoints, A2, B2, and C2. The distance between A1 and B1 is L1, and the distance between A1 and C1 is L2. The distance between A2 and B2 is K1, and the distance between A2 and C2 is K2. When L1 = K1 and L2 = K2, there is no relative positional difference between the viewpoints in the first region 101 and their corresponding viewpoints in the second region 102 in the image viewed by the object. At this time, the three viewpoints are located on the same depth plane. When L1 < K1 and L2 > K2, or L1 > K1 and L2 < K2, viewpoints B and C will appear in the front and rear depth planes of viewpoint A, respectively. Figure 5-2 As shown, when observing target B, the intersection of the left and right visual axes is located in front of the screen; when observing target C, the intersection of the left and right visual axes is located behind the screen. This creates depth differences between multiple sets of targets.

[0069] The polarization direction of the first image light emitted from the first region 101 of the display body 100 can be the same as the polarization direction of the second image light emitted from the second region 102. The first image light from the first region 101 enters the left / right eye after passing through the first polarization element 104, and the polarization direction of the second image light from the second region 102 changes after passing through the optical layer 103, and then enters the right / left eye after passing through the second polarization element 105.

[0070] The first image ray can be linearly polarized light, and the second image ray can be linearly polarized light. The optical layer 103 can change the polarization direction of the second image ray by 90°. The optical layer 103 can be a λ / 2 phase retardation film.

[0071] The display device of this embodiment can be applied to a vision chart to create a vision chart that achieves a stereoscopic effect. Compared with existing solutions that generate linearly polarized light in one polarization direction in odd-numbered rows and linearly polarized light in another polarization direction in even-numbered rows to achieve stereoscopic vision, this display device avoids reducing resolution. Compared with existing solutions that use two displays mounted vertically to achieve stereoscopic vision, this display device has a simple structure and low manufacturing cost.

[0072] The display device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A display device, characterized in that, include: The display body includes a first region and a second region, wherein the first region is used to emit a first image light and the second region is used to emit a second image light. An optical layer is disposed on the light-emitting side of the display body, and the projection of the optical layer on the display body covers the second region of the display body, for causing the polarization direction of the second image light from the second region to change after passing through the optical layer, so that the polarization direction of the second image light passing through the optical layer is different from the polarization direction of the first image light. The first polarizing element and the second polarizing element are respectively configured to correspond to the two eyes of the viewing object. The first polarizing element is used to allow the first image light from the first region to pass through and enter the left / right eye, and the second polarizing element is used to allow the second image light from the optical layer to pass through and enter the right / left eye.

2. The display device according to claim 1, characterized in that, The optical layer is used to delay the phase of the second image light rays, thereby changing the polarization direction of the second image light rays.

3. The display device according to claim 2, characterized in that, The optical layer includes a phase retardation film.

4. The display device according to claim 1, characterized in that, Also includes: A first deflection portion is disposed on the side of the first polarizing element near the display body, and is used to deflect the first virtual image formed when the first image light from the first region passes through the first deflection portion and enters the left / right eye toward the second region. Or / and, a second deflection portion is disposed on the side of the second polarizing element near the display body, for causing the second image light from the optical layer to be deflected toward the first region when it passes through the second deflection portion and enters the right / left eye.

5. The display device according to claim 1, characterized in that, Also includes: A first deflection portion is disposed on the side of the first polarizing element near the display body, for causing the first image light from the first region to pass through the first deflection portion and enter the left / right eye, so that the first virtual image formed is deflected toward the second region, and the first deflection portion causes the center of the first virtual image formed to coincide with the center of the second virtual image formed when the second image light from the optical layer enters the right / left eye.

6. The display device according to claim 1, characterized in that, Also includes: The second deflection portion is disposed on the side of the second polarizing element near the display body, and is used to deflect the second virtual image formed when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye toward the first region, and the second deflection portion makes the center of the formed second virtual image coincide with the center of the first virtual image formed when the first image light from the first region enters the left / right eye.

7. The display device according to claim 1, characterized in that, Also includes: A first deflection portion is disposed on the side of the first polarizing element near the display body, and is used to deflect the first virtual image formed when the first image light from the first region passes through the first deflection portion and enters the left / right eye toward the second region. The second deflection portion is disposed on the side of the second polarizing element near the display body, and is used to deflect the second virtual image formed when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye toward the first region; The center of the first virtual image formed by the first deflection portion and the center of the second virtual image formed by the second deflection portion coincide.

8. The display device according to claim 1, characterized in that, Also includes: A first deflection portion is disposed on the side of the first polarizing element near the display body, so that when the first image light from the first region passes through the first deflection portion and enters the left / right eye, the center of the first virtual image formed coincides with the center of the display body; The second deflection portion is disposed on the side of the second polarizing element near the display body, so that when the second image light from the optical layer passes through the second deflection portion and enters the right / left eye, the center of the second virtual image formed coincides with the center of the display body.

9. The display device according to any one of claims 4 to 8, characterized in that, The first deflection portion includes an optical wedge, and / or the second deflection portion includes an optical wedge.

10. The display device according to claim 1, characterized in that, The display body includes a liquid crystal display layer, the first image light is linearly polarized light, and the second image light is linearly polarized light.

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