Display device and electronic apparatus

Abstract

The embodiment of the invention provides a display device and electronic equipment. According to the display device, the main display panel, the transparent display panel and the light adjusting structure are arranged, so that light emitted by the main display panel can penetrate through the transparent display panel, the light emitted by the main display panel forms a first plane image through the light adjusting structure, and the light emitted by the transparent display panel forms a second plane image; the second plane image is located between the first plane image and the light adjusting structure; when the display device performs display, the first plane image and the second plane image are distributed front and back, so that when human eyes check the first plane image and the second plane image, the two images are combined to form a sense of spatial depth, and a 3D display effect is visually presented.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and in particular, to a display device and an electronic device. Background Art

[0002] With the development of display technologies, airborne suspension display technology has emerged. Airborne suspension display technology refers to projecting the image of a display panel into the air to achieve medium-free airborne suspension display, and this technology is widely used in fields such as medical treatment, advertising, media, and automobiles. Airborne suspension display technology mainly uses a waveguide flat lens to make light undergo two reflections through two layers of transparent materials arranged orthogonally and converge again in the air. However, in existing airborne suspension display technologies, the image formed by light after passing through the flat lens is a planar image, and a 3D (three-dimensional) display effect cannot be achieved.

[0003] Therefore, there is a technical problem that the display device using the airborne suspension display technology cannot achieve 3D display. Summary of the Invention

[0004] Embodiments of the present application provide a display panel and a display device to solve the technical problem that the display device using the airborne suspension display technology cannot achieve 3D display.

[0005] To achieve the above object, according to the first aspect of the present application, a display device is provided. The display device includes:

[0006] A main display panel;

[0007] A transparent display panel;

[0008] A light adjustment structure disposed on the light output path of the main display panel;

[0009] Wherein, the light emitted by the main display panel forms a first planar image through the light adjustment structure, and the light emitted by the transparent display panel forms a second planar image, and the second planar image is located between the first planar image and the light adjustment structure

[0010] According to the second aspect of the present application, a display device is provided. The display device includes the display device according to any one of the above embodiments.

[0011] An embodiment of the present application provides a display device and an electronic device. By providing a main display panel, a transparent display panel, and a light adjustment structure, the light emitted by the main display panel can pass through the transparent display panel. The light emitted by the main display panel forms a first planar image after passing through the light adjustment structure, and the light emitted by the transparent display panel forms a second planar image. The second planar image is located between the first planar image and the light adjustment structure. When the display device is in use, the first planar image and the second planar image are distributed front and back, so that when a human eye views the first planar image and the second planar image, the two images are combined to form a sense of spatial depth, presenting a 3D display effect visually.

[0012] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] To more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0015] Figure 1 The first schematic diagram of the display device provided by the embodiment of the present application.

[0016] Figure 2 The second schematic diagram of the display device provided by the embodiment of the present application.

[0017] Figure 3 The third schematic diagram of the display device provided by the embodiment of the present application.

[0018] Figure 4 The fourth schematic diagram of the display device provided by the embodiment of the present application.

[0019] Figure 5 The fifth schematic diagram of the display device provided by the embodiment of the present application.

[0020] Figure 6 The sixth schematic diagram of the display device provided by the embodiment of the present application.

[0021] Figure 7 The seventh schematic diagram of the display device provided by the embodiment of the present application.

[0022] Figure 8The eighth schematic diagram of the display device provided by the embodiment of the present application.

[0023] Figure 9 The ninth schematic diagram of the display device provided by the embodiment of the present application.

[0024] Figure 10 The schematic diagram of the retroreflector provided by the embodiment of the present application.

[0025] Figure 11 The schematic diagram of the main display panel provided by the embodiment of the present application.

[0026] Explanation of reference numerals:

[0027] 1 - Display device; 11 - Main display panel; 111 - First planar image; 12 - Transparent display panel; 121 - Second planar image; 13 - Light adjustment structure; 131 - Reflective polarizer; 132 - Retroreflector; 133 - Quarter-wave plate; 134 - Transmissive retro-mirror; 135 - Half-transmissive and half-reflective mirror; 14 - Light ray; 15 - Housing; 16 - Virtual triangle; 21 - Display layer; 22 - Polarizer. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0029] In view of the technical problem that the existing display device using the air suspension display technology cannot achieve 3D display, the embodiment of the present application provides a display device and an electronic device to solve the above technical problem.

[0030] Figure 1 The first schematic diagram of the display device provided by the embodiment of the present application. Figure 2 The second schematic diagram of the display device provided by the embodiment of the present application. Figure 3 The third schematic diagram of the display device provided by the embodiment of the present application. Figure 4 The fourth schematic diagram of the display device provided by the embodiment of the present application. Figure 5 The fifth schematic diagram of the display device provided by the embodiment of the present application. Figure 6 The sixth schematic diagram of the display device provided by the embodiment of the present application. Figure 7 The seventh schematic diagram of the display device provided by the embodiment of the present application. Figure 8 The eighth schematic diagram of the display device provided by the embodiment of the present application. Figure 9The ninth schematic diagram of the display device provided by the embodiment of the present application. Figure 10 The schematic diagram of the retroreflector provided by the embodiment of the present application. Figure 11 The schematic diagram of the main display panel provided by the embodiment of the present application.

[0031] As Figures 1 to 9 shown, the embodiment of the present application provides a display device. The display device 1 includes a main display panel 11, a transparent display panel 12, and a light adjustment structure 13. The light adjustment structure 13 is disposed on the light-emitting path of the main display panel 11;

[0032] Among them, the light emitted by the main display panel 11 forms a first planar image 111 after passing through the light adjustment structure 13, and the light emitted by the transparent display panel 12 forms a second planar image 121. The second planar image 121 is located between the first planar image 111 and the light adjustment structure 13.

[0033] The embodiment of the present application provides a display device. By setting the main display panel 11, the transparent display panel 12, and the light adjustment structure 13, the light emitted by the main display panel 11 can pass through the transparent display panel 12. The light emitted by the main display panel 11 forms a first planar image 111 after passing through the light adjustment structure 13, and the light emitted by the transparent display panel 12 forms a second planar image 121. The second planar image 121 is located between the first planar image 111 and the light adjustment structure 13. When the display device 1 is displaying, the first planar image 111 and the second planar image 121 are distributed front and back, so that when the human eye views the first planar image 111 and the second planar image 121, the two images are combined to form a sense of spatial depth, presenting a 3D display effect visually.

[0034] Specifically, the main display panel 11 can be one of a liquid crystal display panel, an OLED (Organic Light-Emitting Diode) display panel, and a micro light-emitting diode display panel.

[0035] Specifically, the transparent display panel 12 can be a display panel capable of transmitting light, such as one of a liquid crystal display panel capable of transmitting light, an OLED display panel, and a micro light-emitting diode display panel.

[0036] Specifically, it can be seen that there is a spacing between the first planar image 111 and the second planar image 121.

[0037] Specifically, the transparent display panel 12 is configured to transmit the light emitted by the main display panel 11 when the main display panel 11 is displaying; the light adjustment structure 13 is configured to adjust the angle of the light emitted by the main display panel 11.

[0038] Specifically, the light adjustment structure 13 can adjust the light emitted by the main display panel 11, causing the light emitted by the main display panel 11 to form an image in the air, thereby achieving floating display.

[0039] Specifically, it can be understood that compared with the display devices currently using the air floating display technology, in which there is only one display panel, the light emitted by this display panel forms a planar image after passing through the flat lens and cannot achieve a 3D display effect. In the embodiments of the present application, by separately imaging the main display panel and the transparent display panel, when displaying, the images formed by the main display panel and the transparent display panel are combined to form a sense of spatial depth, achieving a 3D display effect.

[0040] For example, when displaying a "character image" with a "background image", in the floating image displayed by the current display device, the "background image" and the "character image" are displayed on the same plane. Therefore, when a person's eyes view the image, it is a planar image; while in the embodiments of the present application, the "background image" can be displayed through the transparent display panel, and the "character image" can be displayed on the main display panel. Since the "background image" and the "character image" are displayed on different planes, when the two are combined, they will present a certain spatial depth, and the "background image" will be displayed behind the "character image" in space during display, thus achieving a 3D display effect.

[0041] In some embodiments, as Figures 1 to 4 shown, the light adjustment structure 13 includes a retroreflector 132, a reflective polarizer 131, and a quarter-wave plate 133; the reflective polarizer 131 is disposed on the light output path of the main display panel 11; the quarter-wave plate 133 is disposed on a side of the retroreflector 132 close to the reflective polarizer 131;

[0042] Wherein, the projections of the reflective polarizer 131, the retroreflector 132, and the main display panel 11 on the same plane are respectively located on three sides of a virtual triangle 16. By making the light adjustment structure 13 include the reflective polarizer 131 and the retroreflector 132, the light will be converted into light that can pass through the reflective polarizer 131 after passing through the reflective polarizer 131 and the quarter-wave plate 133, reducing light loss and improving the display effect.

[0043] Specifically, the projections of the reflective polarizer 131, the retroreflector 132, and the main display panel 11 on the same plane are respectively located on three sides of a virtual triangle 16, and the angles between the sides where each structure is located can be set according to requirements.

[0044] Specifically, the reflective polarizer 131 includes a reflective layer and a polarizing layer. The reflective polarizer 131 can reflect light of a specific wavelength and change its polarization direction. Specifically, the reflective polarizer 131 can transmit a part of the light and reflect a part of the light. For example, when the light emitted by the main display panel 11 is natural light, the reflective polarizer 131 can transmit a part of the natural light and reflect a part of the natural light; or when the light emitted by the main display panel 11 is polarized light, the reflective polarizer 131 can transmit a part of the polarized light of a specific wavelength and reflect a part of the polarized light; or when the light emitted by the main display panel 11 is natural light, the reflective polarizer 131 can transmit polarized light in one direction and reflect polarized light in another direction.

[0045] Specifically, the reflective polarizer 131 can selectively transmit parallel polarized light (i.e., p-light) and reflect perpendicular polarized light (i.e., s-light).

[0046] Specifically, the light emitted by the main display panel 11 can be natural light or polarized light.

[0047] Specifically, for example, as Figure 1 shown, when the light emitted by the main display panel 11 is natural light, the light 14 irradiates on the reflective polarizer 131. The parallel polarized light will pass through the reflective polarizer 131, and the perpendicular polarized light will be reflected by the reflective polarizer 131 to the quarter-wave plate 133, and then emitted to the retroreflector 132 and reflected back to the quarter-wave plate 133 by the retroreflector 132. At this time, the perpendicular polarized light becomes parallel polarized light after passing through the quarter-wave plate 133 twice, so that the parallel polarized light can pass through the reflective polarizer 131 to form the first planar image 111; it can reduce light loss and improve the display effect.

[0048] Specifically, the light emitted by the main display panel 11 can also be polarized light, specifically perpendicular polarized light. Then, when the light irradiates on the reflective polarizer 131 for the first time, it will not pass through the reflective polarizer 131, reducing light loss. And when it irradiates on the reflective polarizer 131 again after passing through the quarter-wave plate 133 and the retroreflector 132, since the light is parallel polarized light, it will be completely reflected, thus reducing light loss.

[0049] Specifically, as Figure 10 shown, the retroreflector 132 can be a corner cube, but the embodiments of the present application are not limited thereto. The retroreflector 132 can be other structures that can achieve the function of the retroreflector 132; as Figure 6 shown, it can be seen that the three side faces of the retroreflector 132 are perpendicular to each other. The light 14 enters from the bottom surface and irradiates on one side face and is reflected to another side face, and then is reflected to the third side face again, and finally exits from the bottom surface.

[0050] In some embodiments, as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 shown, the transparent display panel 12 is disposed between the light adjusting structure 13 and the main display panel 11, and the light adjusting structure 13 is configured to adjust the angle of the light emitted by the transparent display panel 12. By disposing the transparent display panel 12 between the light adjusting structure 13 and the main display panel 11, and the light adjusting structure is configured to adjust the angle of the light emitted by the transparent display panel 12, such that the light emitted by the transparent display panel 12 and the main display panel 11 respectively form a second planar image 121 and a first planar image 111 after passing through the light adjusting structure 13, and the first planar image 111 and the second planar image 121 are not in the same plane, thereby presenting a spatial depth during display and achieving a 3D display effect.

[0051] Specifically, as Figure 1 , Figure 2 shown, the transparent display panel 12 is disposed between the reflective polarizer 131 and the main display panel 11. As Figure 9 shown, the transparent display panel 12 is disposed between the semi-transmissive and semi-reflective mirror 135 and the main display panel 11. As Figure 5 , Figure 6 shown, the transparent display panel 12 is disposed between the transmissive retroreflector 134 and the main display panel 11.

[0052] Specifically, as Figure 1 , Figure 5 , Figure 9 shown, the transparent display panel 12 and the main display panel 11 are disposed opposite to each other, and the distance between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located is greater than or equal to 5 millimeters and less than or equal to 50 millimeters.

[0053] Specifically, as Figure 2 , Figure 6 shown, the included angle α between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located is greater than 0 and less than or equal to 10 degrees.

[0054] Specifically, the transparent display panel 12 and the main display panel 11 may be disposed in parallel.

[0055] Specifically, the light emitted by the transparent display panel 12 can be natural light or polarized light. When the light emitted by the transparent display panel 12 passes through the light adjustment structure 13, the optical path of the light can refer to the optical path of the light emitted by the main display panel 11 passing through the light adjustment structure 13. For example, when the light emitted by the transparent display panel 12 is natural light, the light irradiates on the reflective polarizer 131. The parallel polarized light will pass through the reflective polarizer 131, and the perpendicular polarized light will be reflected by the reflective polarizer 131 to the quarter-wave plate 133, and then emitted to the retroreflector 132 and reflected back to the quarter-wave plate 133 by the retroreflector 132. At this time, the perpendicular polarized light becomes parallel polarized light after passing through the quarter-wave plate 133 twice, so that the parallel polarized light can pass through the reflective polarizer 131 to form the second plane image 121.

[0056] In some embodiments, such as Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the light adjustment structure 13. By arranging the transparent display panel 12 and the main display panel 11 on both sides of the light adjustment structure 13, the light emitted by the transparent display panel 12 does not need to pass through the light adjustment structure 13, and the second plane image 121 displayed on the transparent display panel 12 and the first plane image 111 are not in the same plane, presenting a spatial depth during display and realizing a 3D display effect.

[0057] Specifically, as Figure 3 、 Figure 4 shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the reflective polarizer 131. As Figure 7 、 Figure 8 shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the transmissive retroreflector 134.

[0058] In some embodiments, such as Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 shown, the transparent display panel 12 is arranged between the light adjustment structure 13 and the first plane image 111. By arranging the transparent display panel 12 between the light adjustment structure 13 and the first plane image 111, the second plane image 121 displayed on the transparent display panel 12 and the first plane image 111 are not in the same plane, presenting a spatial depth during display and realizing a 3D display effect.

[0059] Specifically, the light transmittance of the transparent display panel is greater than or equal to 20% and less than or equal to 99%. Specifically, the light transmittance of the transparent display panel is greater than or equal to 30% and less than or equal to 90%.

[0060] In some embodiments, as Figure 3 、 Figure 7 shown, the distance L2 between the transparent display panel 12 and the first planar image 111 is greater than or equal to 5 mm and less than or equal to 50 mm. By making the distance between the transparent display panel 12 and the first planar image 111 greater than or equal to 5 mm and less than or equal to 50 mm, there is a certain distance between the first planar image 111 and the second planar image 121, which can present a 3D display effect during display and avoid image separation or poor display caused by too large a distance between the first planar image 111 and the second planar image 121.

[0061] In some embodiments, as Figure 4 、 Figure 8 shown, the included angle b between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located is greater than 0 and less than or equal to 10 degrees.

[0062] In some embodiments, as Figure 1 shown, the transparent display panel 12 is disposed between the reflective polarizer 131 and the main display panel 11, and the plane where the transparent display panel 12 is located is parallel and spaced from the plane where the main display panel 11 is located; or the plane where the transparent display panel 12 is located intersects the plane where the main display panel 11 is located. By disposing the transparent display panel 12 between the reflective polarizer 131 and the main display panel 11, the light emitted by the transparent display panel 12 and the main display panel 11 respectively form the second planar image 121 and the first planar image 111 after passing through the reflective polarizer 131, and there is a distance between the first planar image 111 and the second planar image 121, thereby presenting a depth in space during display and achieving a 3D display effect.

[0063] Specifically, as Figure 1 shown, the plane where the transparent display panel 12 is located is parallel and spaced from the plane where the main display panel 11 is located; as Figure 2 shown, the plane where the transparent display panel 12 is located intersects the plane where the main display panel 11 is located.

[0064] In some embodiments, as Figure 1As shown, the distance L1 between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located is greater than or equal to 5 millimeters and less than or equal to 50 millimeters. By making the distance between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located greater than or equal to 5 millimeters and less than or equal to 50 millimeters, the images formed by the two have a certain distance, so as to present a spatial depth during display, achieve a 3D display effect, and the image formed by the transparent display panel is clearly visible.

[0065] In some embodiments, as Figure 2 shown, the included angle a between the plane where the transparent display panel is located and the plane where the main display panel is located is greater than 0 and less than or equal to 10 degrees.

[0066] Specifically, the plane where the transparent display panel 12 is located can be determined according to the central plane of the transparent display panel 12, or the plane where the transparent display panel 12 is located can be determined according to the surface of the transparent display panel 12. Similarly, the plane where the main display panel 11 is located can be determined.

[0067] In some embodiments, as Figure 3 、 Figure 4 shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the reflective polarizer 131, and the plane where the transparent display panel 12 is located is arranged parallel and spaced from the plane where the first planar image 111 is located; or the plane where the transparent display panel 12 is located intersects with the plane where the first planar image 111 is located. By arranging the transparent display panel 12 and the main display panel 11 on both sides of the reflective polarizer 131, the light emitted by the transparent display panel 12 does not need to pass through the reflective polarizer 131, and the second planar image 121 displayed by the transparent display panel 12 is spaced from the first planar image 111, presenting a spatial depth during display and achieving a 3D display effect.

[0068] Specifically, as Figure 3 shown, the plane where the transparent display panel 12 is located is arranged parallel and spaced from the plane where the first planar image 111 is located; as Figure 4 shown, the plane where the transparent display panel 12 is located intersects with the plane where the first planar image 111 is located.

[0069] In some embodiments, as Figure 3As shown, when the transparent display panel 12 and the main display panel 11 are disposed on both sides of the reflective polarizer 131, the distance L2 between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located is greater than or equal to 5 millimeters and less than or equal to 50 millimeters. By making the distance between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located greater than or equal to 5 millimeters and less than or equal to 50 millimeters, the images formed by the two have a certain distance, so that a spatial depth is presented during display, achieving a 3D display effect, and the image formed by the transparent display panel is clearly visible.

[0070] In some embodiments, as Figure 4 shown, the angle b between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located is greater than 0 and less than or equal to 10 degrees.

[0071] In some embodiments, as Figures 1 to 4 shown, the included angle range between the projections of the reflective polarizer 131 and the main display panel 11 on the same plane is 25 degrees to 75 degrees. By making the included angle range between the projections of the reflective polarizer 131 and the main display panel 11 on the same plane be 25 degrees to 75 degrees, light can be emitted from the reflective polarizer 131, avoiding light loss.

[0072] Specifically, the included angle between the projections of the reflective polarizer 131 and the main display panel 11 on the same plane can be 45 degrees.

[0073] Specifically, the included angle range between the projections of the reflective polarizer 131 and the main display panel 11 on the same plane can be 25 degrees to 45 degrees, or the included angle range between the projections of the reflective polarizer 131 and the main display panel 11 on the same plane can be 45 degrees to 75 degrees.

[0074] In some embodiments, as Figure 11As shown, the main display panel 11 includes one of a liquid crystal display panel and an organic light emitting diode display panel; alternatively, the main display panel includes a micro light emitting diode display panel, and the micro light emitting diode display panel includes a polarizer 22, and the polarizer 22 is disposed on a side close to the light adjusting structure 13. By making the main display panel 11 include the polarizer 22, and the polarizer 22 is disposed on a side close to the light adjusting structure 13, the main display panel 11 can emit polarized light. Specifically, when the main display panel 11 includes a liquid crystal display panel and an organic light emitting diode display panel, the liquid crystal display panel and the organic light emitting diode display panel have polarizers and no additional polarizer needs to be provided. When the main display panel 11 is a micro light emitting diode display panel, the polarizer 22 can be provided so that the main display panel 11 can emit polarized light.

[0075] Specifically, as Figure 11 shown, the main display panel 11 may include a display layer 21 and a polarizer 22.

[0076] In some embodiments, as Figures 5 to 8 shown, the light adjusting structure 13 includes a transmissive retroreflector 134, and the transmissive retroreflector 134 is disposed on the light exit path of the main display panel 11. By providing the transmissive retroreflector 134, the light emitted by the main display panel 11 forms a floating image at a symmetric position after passing through the transmissive retroreflector 134, realizing floating display.

[0077] Specifically, as Figures 5 to 8 shown, the light emitted by the main display panel 11 forms a floating image at a symmetric position after passing through the transmissive retroreflector 134, that is, when the thickness is not considered, the first planar image 111 and the main display panel 11 are symmetrically disposed with respect to the transmissive retroreflector 134.

[0078] Specifically, the transmissive retroreflector 134 may be a flat lens.

[0079] In some embodiments, as Figure 5 、 Figure 6As shown, the transparent display panel 12 is disposed between the transmissive retroreflector 134 and the main display panel 11, and the plane where the transparent display panel 12 is located is parallelly and spaced apart from the plane where the main display panel 11 is located; or the plane where the transparent display panel 12 is located intersects with the plane where the main display panel 11 is located. By disposing the transparent display panel 12 between the transmissive retroreflector 134 and the main display panel 11, the light emitted by the transparent display panel 12 and the main display panel 11 respectively form a second planar image 121 and a first planar image 111 after passing through the transmissive retroreflector 134, and there is a spacing between the first planar image 111 and the second planar image 121, so as to present a spatial depth during display and achieve a 3D display effect.

[0080] In some embodiments, as Figure 5 shown, the spacing between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located is greater than or equal to 5 mm and less than or equal to 50 mm. By making the spacing between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located greater than or equal to 5 mm and less than or equal to 50 mm, the images formed by the two have a certain spacing, so as to present a spatial depth during display and achieve a 3D display effect, and the image formed by the transparent display panel is clearly visible.

[0081] In some embodiments, as Figure 6 shown, the included angle between the plane where the transparent display panel 12 is located and the plane where the main display panel 11 is located is greater than 0 and less than or equal to 10 degrees.

[0082] Specifically, the plane where the transparent display panel 12 is located can be determined according to the central plane of the transparent display panel 12, or the plane where the transparent display panel 12 is located can be determined according to the surface of the transparent display panel 12. Similarly, the plane where the main display panel 11 is located can be determined.

[0083] In some embodiments, as Figure 7 、 Figure 8 shown, the transparent display panel 12 and the main display panel 11 are disposed on both sides of the transmissive retroreflector 134, and the plane where the transparent display panel 12 is located is parallelly and spaced apart from the plane where the first planar image 111 is located; or the plane where the transparent display panel is located intersects with the plane where the first planar image is located. By disposing the transparent display panel 12 and the main display panel 11 on both sides of the transmissive retroreflector 134, the light emitted by the transparent display panel 12 does not need to pass through the transmissive retroreflector 134, and the second planar image 121 displayed by the transparent display panel 12 is spaced apart from the first planar image 111, presenting a spatial depth during display and achieving a 3D display effect.

[0084] In some embodiments, as Figure 7 shown, the distance between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located is greater than or equal to 5 mm and less than or equal to 50 mm. By making the distance between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located greater than or equal to 5 mm and less than or equal to 50 mm, the images formed by the two have a certain distance, so that a spatial depth is presented during display, achieving a 3D display effect, and the image formed by the transparent display panel is clearly visible.

[0085] In some embodiments, as Figure 8 shown, the included angle between the plane where the transparent display panel 12 is located and the plane where the first planar image 111 is located is greater than 0 and less than or equal to 10 degrees.

[0086] In some embodiments, as Figures 5 to 8 shown, the included angle range between the projection of the transmissive retroreflector 134 and the main display panel 11 on the same plane is 25 degrees to 75 degrees. By making the included angle range between the projection of the transmissive retroreflector 134 and the main display panel 11 on the same plane be 25 degrees to 75 degrees, light can be emitted from the transmissive retroreflector 134, avoiding light loss.

[0087] Specifically, the included angle between the projection of the transmissive retroreflector 134 and the main display panel 11 on the same plane can be 45 degrees.

[0088] Specifically, the included angle range between the projection of the transmissive retroreflector 134 and the main display panel 11 on the same plane is 25 degrees to 45 degrees; or the included angle range between the projection of the transmissive retroreflector and the main display panel on the same plane is 45 degrees to 75 degrees.

[0089] In some embodiments, as Figures 5 to 8As shown, the display device 1 further includes a housing 15. An opening is provided on one side of the housing 15. The main display panel 11 is disposed inside the housing 15. The transmissive retroreflector 134 is disposed at the opening of the housing 15. The angle between the transmissive retroreflector 134 and the straight line where the projection of the main display panel 11 lies on the same plane is greater than 0 and less than 90 degrees. By disposing the main display panel 11 inside the housing and making the angle between the transmissive retroreflector 134 and the straight line where the projection of the main display panel 11 lies on the same plane greater than 0 and less than 90 degrees, light can be emitted from the transmissive retroreflector 134 and will not be emitted from other surfaces of the housing 15. Moreover, since there is an angle between the transmissive retroreflector 134 and the main display panel 11, the first planar image will not be in the same straight line as the main display panel, avoiding directly viewing the main display panel 11 and affecting the floating display effect.

[0090] Specifically, each surface of the housing 15 can be light-shielding, or the inner surface of the housing 15 can reflect light.

[0091] In some embodiments, as Figure 9 shown, the light adjusting structure 13 includes a semi-transmissive semi-reflective mirror 135 and a retroreflector 132. The semi-transmissive semi-reflective mirror 135 is disposed on the light-emitting path of the main display panel 11. The projections of the semi-transmissive semi-reflective mirror 135, the retroreflector 132, and the main display panel 11 on the same plane are respectively located on three sides of a virtual triangle. By providing the semi-transmissive semi-reflective mirror 135, the structure of the light adjusting structure 13 is relatively simple, occupies less space, and can directly reflect and transmit light.

[0092] Specifically, the semi-transmissive semi-reflective mirror 135 can transmit a part of the light and reflect a part of the light.

[0093] Specifically, for example, as Figure 1As shown, when the light emitted by the main display panel 11 is natural light, the light 14 irradiates the reflective polarizer 131. The parallel polarized light will pass through the reflective polarizer 131, and the perpendicular polarized light will be reflected by the reflective polarizer 131 to the quarter-wave plate 133, and then emitted to the retroreflector 132 and reflected back to the quarter-wave plate 133 by the retroreflector 132. At this time, the perpendicular polarized light becomes parallel polarized light after passing through the quarter-wave plate 133 twice, so that the parallel polarized light can pass through the reflective polarizer 131 to form the first planar image 111; when the light adjustment structure includes the semi-transmissive and semi-reflective mirror 135, the light is lost when passing through the semi-transmissive and semi-reflective mirror for the first time. After being reflected by the semi-transmissive and semi-reflective mirror to the retroreflector, part of the light reflected by the retroreflector to the semi-transmissive and semi-reflective mirror will be reflected and lost, so that the light will be lost twice when passing through the semi-transmissive and semi-reflective mirror twice. When using the reflective polarizer 131 and the quarter-wave plate 133, the light loss can be reduced compared with the semi-transmissive and semi-reflective mirror; therefore, by setting the reflective polarizer 131, the light loss can be reduced and the display effect can be improved.

[0094] Specifically, as Figure 1 shown, the transparent display panel 12 is disposed opposite to the main display panel 11. The included angles between the transparent display panel 12 and the main display panel 11 and the projection of the retroreflector 132 on the same plane can be acute angles, right angles, and obtuse angles. The quarter-wave plate 133 is disposed opposite to the retroreflector 132. The quarter-wave plate 133 can be disposed parallel to the retroreflector 132. The included angle between the projection of the retroreflector 132 and the reflective polarizer 131 on the same plane can be an acute angle. As Figure 1 shown, after the light 14 emitted by the main display panel 11 and the transparent display panel 12 irradiates the reflective polarizer 131, the parallel polarized light passes through the reflective polarizer 131, and the perpendicular polarized light is reflected by the reflective polarizer 131 to the quarter-wave plate 133 and then passes through the quarter-wave plate 133 and is emitted to the retroreflector 132. The retroreflector 132 reflects the light to the quarter-wave plate 133 and then passes through the quarter-wave plate 133 to obtain parallel polarized light. The parallel polarized light passes through the reflective polarizer 131 to form the first planar image 111 and the second planar image 121 respectively, realizing 3D display.

[0095] Specifically, Figure 2 The working process of the display device shown can be referred to Figure 1 the working process of the display device shown.

[0096] Specifically, as Figure 3As shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the reflective polarizer 131. The angle between the projection of the main display panel 11 and the reverse mirror 132 on the same plane can be an acute angle, a right angle, or an obtuse angle. The quarter-wave plate 133 is arranged opposite to the reverse mirror 132, and the quarter-wave plate 133 can be arranged parallel to the reverse mirror 132. The angle between the projection of the reverse mirror 132 and the reflective polarizer 131 on the same plane can be an acute angle. As Figure 2 As shown, after the light 14 emitted by the main display panel 11 is emitted to the reflective polarizer 131, the parallel polarized light passes through the reflective polarizer 131, and the perpendicular polarized light is reflected by the reflective polarizer 131 to the quarter-wave plate 133 and then passes through the quarter-wave plate 133 and is emitted to the reverse mirror 132. The reverse mirror 132 reflects the light to the quarter-wave plate 133 and then passes through the quarter-wave plate 133 to obtain parallel polarized light. The parallel polarized light passes through the reflective polarizer 131 to form the first plane image 111. At the same time, the transparent display panel 12 emits light to display the second plane image 121, realizing 3D display.

[0097] Specifically, Figure 4 The working process of the display device shown can be referred to Figure 3 The working process of the display device shown.

[0098] Specifically, as Figure 5 As shown, the transparent display panel 12 and the main display panel 11 are arranged opposite to each other and are both arranged in the housing 15. The angle between the projection of the transparent display panel 12 and the main display panel 11 and the transmissive retroreflector 134 on the same plane can be an acute angle. As Figure 3 As shown, after the light 14 emitted by the main display panel 11 and the transparent display panel 12 is emitted to the transmissive retroreflector 134, the light emitted from the transmissive retroreflector 134 will be symmetric with the incident light with respect to the transmissive retroreflector 134, and form the first plane image 111 and the second plane image 121, realizing 3D display.

[0099] Specifically, Figure 6 The working process of the display device shown can be referred to Figure 5 The working process of the display device shown.

[0100] Specifically, as Figure 7 As shown, the transparent display panel 12 and the main display panel 11 are arranged on both sides of the transmissive retroreflector 134. The angle between the projection of the main display panel 11 and the transmissive retroreflector 134 on the same plane can be an acute angle. As Figure 4As shown, after the light 14 emitted by the main display panel 11 is transmitted to the transmissive retroreflector 134, the light emitted from the transmissive retroreflector 134 will be symmetric with the incident light with respect to the transmissive retroreflector 134, and a first planar image 111 is formed. The transparent display panel 12 will emit light to form a second planar image 121, realizing 3D display.

[0101] Specifically, Figure 8 The working process of the display device shown can be referred to Figure 7 the working process of the display device shown.

[0102] Specifically, as Figure 9 shown, the transparent display panel 12 is disposed opposite to the main display panel 11. The angles between the transparent display panel 12 and the main display panel 11 and the projection of the retroreflector 132 on the same plane can be acute angles, right angles, and obtuse angles. The angle between the retroreflector 132 and the projection of the semi-transmissive semi-reflective mirror 135 on the same plane can be an acute angle. As Figure 5 shown, after the light 14 emitted by the main display panel 11 and the transparent display panel 12 is transmitted to the semi-transmissive semi-reflective mirror 135, part of the light passes through the semi-transmissive semi-reflective mirror 135, and part of the light is reflected by the semi-transmissive semi-reflective mirror 135 to the retroreflector 132. The retroreflector 132 reflects the light to the semi-transmissive semi-reflective mirror 135 and then passes through the semi-transmissive semi-reflective mirror 135 to form a first planar image 111 and a second planar image 121 respectively, realizing 3D display.

[0103] Specifically, the above embodiments have described the display panel in detail from aspects such as the composition of the display device and the specific design of each structure of the display device. When there is no conflict among the embodiments, the embodiments can be combined. For example, the transparent display panel and the main display panel are disposed on both sides of the transmissive retroreflector. The plane where the transparent display panel is located is parallel and spaced from the plane where the first planar image is located. The distance between the plane where the transparent display panel is located and the plane where the first planar image is located is greater than or equal to 5 millimeters and less than or equal to 50 millimeters.

[0104] Meanwhile, the embodiments of the present application provide an electronic device, and the electronic device includes the display device as described in any one of the above embodiments.

[0105] Specifically, the electronic device may include a box body, and the display device may be disposed in the box body.

[0106] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0107] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0108] Among the embodiments, implementation manners and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0109] The above are only the preferred embodiments of the present application, and do not impose any formal limitations on the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A display device, characterized in that, Comprising: A main display panel; A transparent display panel; A light adjustment structure disposed on the light-emitting path of the main display panel; Wherein, the light emitted by the main display panel forms a first planar image after passing through the light adjustment structure, and the light emitted by the transparent display panel forms a second planar image, and the second planar image is located between the first planar image and the light adjustment structure.

2. The display device according to claim 1, characterized in that The light adjustment structure includes: A reverse mirror; A reflective polarizer disposed on the light-emitting path of the main display panel; A quarter-wave plate disposed on the side of the reverse mirror close to the reflective polarizer; Wherein, the projections of the reflective polarizer, the reverse mirror and the main display panel on the same plane are respectively located on three sides of a virtual triangle.

3. The display device according to claim 2, wherein The transparent display panel is disposed between the reflective polarizer and the main display panel, and the plane where the transparent display panel is located is parallel and spaced from the plane where the main display panel is located; Or the plane where the transparent display panel is located intersects with the plane where the main display panel is located.

4. The display device according to claim 3, characterized in that, The distance between the plane where the transparent display panel is located and the plane where the main display panel is located is greater than or equal to 5 mm and less than or equal to 50 mm; Or the included angle between the plane where the transparent display panel is located and the plane where the main display panel is located is greater than 0 and less than or equal to 10 degrees.

5. The display device according to claim 2, wherein The transparent display panel and the main display panel are disposed on both sides of the reflective polarizer, and the plane where the transparent display panel is located is parallel and spaced from the plane where the first planar image is located; Or the plane where the transparent display panel is located intersects with the plane where the first planar image is located.

6. The display device according to claim 5, wherein The distance between the plane where the transparent display panel is located and the plane where the first planar image is located is greater than or equal to 5 mm and less than or equal to 50 mm; Or the included angle between the plane where the transparent display panel is located and the plane where the first planar image is located is greater than 0 and less than or equal to 10 degrees.

7. The display device according to claim 2, characterized in that The included angle range between the projections of the reflective polarizer and the main display panel on the same plane is 25 degrees to 45 degrees; Or, the included angle range between the projections of the reflective polarizer and the main display panel on the same plane is 45 degrees to 75 degrees.

8. The display device according to claim 1, characterized in that, The light adjustment structure includes a transmissive retroreflector, and the transmissive retroreflector is disposed on the light-emitting path of the main display panel.

9. The display device according to claim 8, characterized in that, The transparent display panel is disposed between the transmissive retroreflector and the main display panel, and the plane where the transparent display panel is located is parallel and spaced from the plane where the main display panel is located; Or the plane where the transparent display panel is located intersects with the plane where the main display panel is located.

10. The display device according to claim 9, characterized in that, The distance between the plane where the transparent display panel is located and the plane where the main display panel is located is greater than or equal to 5 mm and less than or equal to 50 mm; Or the included angle between the plane where the transparent display panel is located and the plane where the main display panel is located is greater than 0 and less than or equal to 10 degrees.

11. The display device according to claim 8, wherein The transparent display panel and the main display panel are arranged on both sides of the transmissive retroreflector, and the plane where the transparent display panel is located is arranged in parallel and spaced from the plane where the first planar image is located; or the plane where the transparent display panel is located intersects with the plane where the first planar image is located.

12. The display device according to claim 11, wherein The distance between the plane where the transparent display panel is located and the first planar image is greater than or equal to 5 millimeters and less than or equal to 50 millimeters; or the included angle between the plane where the transparent display panel is located and the plane where the first planar image is located is greater than 0 and less than or equal to 10 degrees.

13. The display device according to claim 8, wherein The included angle range between the projections of the transmissive retroreflector and the main display panel on the same plane is 25 degrees to 45 degrees; or, the included angle range between the projections of the transmissive retroreflector and the main display panel on the same plane is 45 degrees to 75 degrees.

14. The display device according to any one of claims 1 to 13, characterized in that, The main display panel includes one of a liquid crystal display panel and an organic light emitting diode display panel; or, the main display panel includes a micro light emitting diode display panel, the micro light emitting diode display panel includes a polarizer, and the polarizer is arranged on the side close to the light adjusting structure.

15. An electronic device, characterized in that, Comprising the display device according to any one of claims 1 to 14.

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