Image acquisition display device and electronic device

Abstract

The application discloses an image acquisition and display device and electronic equipment, which comprises a light transmission unit, a light adjustment module, an image display module and a camera module. The light transmission unit comprises multiple light transmission areas. The light adjustment module comprises a first polarization beam splitter and a first adjustable polarizer. The natural light containing various vibration directions is split into two beams according to two mutually perpendicular polarization directions through the polarization beam splitter. The display light emitted by the image display module is transmitted to the first light transmission area and / or the second light transmission area after being split by the first polarization beam splitter, and then is emitted out, so that the image display is realized. The first light transmission area polarization light or the second light transmission area polarization light enters the camera module through the adjustable polarization direction polarizer. The application has the beneficial effect that the polarization light for display and the polarization light entering the camera module have different polarization directions, the light paths of image acquisition and display are independent, do not interfere with each other, the image acquisition and display can be realized at the same time, and the display and acquisition effects are good.

Description

Technical Field

[0001] This invention relates to the field of optical imaging and display technology, and more specifically, to an image acquisition and display device and an electronic device. Background Technology

[0002] Electronic devices typically use camera modules for image acquisition. One camera module captures image data in one direction, while different camera modules are needed to capture image data in different directions. Furthermore, it's not possible to capture image data and display it simultaneously, or for image capture and display to interfere with each other, resulting in poor image acquisition or display quality. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide an image acquisition and display device capable of simultaneously displaying and acquiring images.

[0004] To achieve the above objectives, the present invention provides an image acquisition and display device, which includes a light-transmitting unit, a dimming module, an image display module, and a camera module;

[0005] The light-transmitting unit includes a first light-transmitting area and a second light-transmitting area;

[0006] The dimming module includes a first polarizing beam splitter and a first adjustable polarizer. The first polarizing beam splitter splits the transmitted light into two polarized beams in two mutually perpendicular polarization directions. The first adjustable polarizer is disposed between the first polarizing beam splitter and the camera module.

[0007] The display light emitted by the image display module is split by the first polarizing beam splitter and then transmitted to the first light-transmitting area and / or the second light-transmitting area before being emitted.

[0008] The incident light in the first light-transmitting area passes through the first polarizing beam splitter to obtain the first light-transmitting area polarized light, and the incident light in the second light-transmitting area passes through the first polarizing beam splitter to obtain the second light-transmitting area polarized light. The polarization directions of the first light-transmitting area polarized light and the second light-transmitting area polarized light are perpendicular to each other. The first adjustable polarizer allows the first light-transmitting area polarized light or the second light-transmitting area polarized light to enter the camera module by adjusting the polarization direction.

[0009] As a further improvement of the present invention, the dimming module further includes a reflector, which is disposed in the optical path between the second light-transmitting area and the first polarizing beam splitter. The reflector reflects light to the first polarizing beam splitter or to the second light-transmitting area.

[0010] As a further improvement of the present invention, the dimming module further includes a second adjustable polarizer, which is disposed between the first polarizing beam splitter and the image display module. The second adjustable polarizer adjusts the polarization direction so that the display light emitted by the image display module has different polarization directions.

[0011] As a further improvement of the present invention, the dimming module further includes a lens group, the lens group including a first lens group, which is disposed on the reflected light path of the reflector.

[0012] As a further improvement of the present invention, the dimming module further includes a second polarizing beam splitter and an adjustable beam rotator, and the light transmission unit further includes a third light transmission area. The adjustable beam rotator is disposed between the second polarizing beam splitter and the first polarizing beam splitter. The second polarizing beam splitter splits the transmitted light into two polarized beams in two mutually perpendicular polarization directions.

[0013] The incident light in the second light-transmitting area passes sequentially through the second polarizing beam splitter, the adjustable beam rotator, and the first polarizing beam splitter before entering the camera module; the incident light in the third light-transmitting area passes sequentially through the second polarizing beam splitter and the first polarizing beam splitter before entering the camera module.

[0014] The display light emitted by the image display module passes sequentially through the first polarizing beam splitter, the adjustable beam rotator, and the second polarizing beam splitter before being transmitted to the second light-transmitting area and / or the third light-transmitting area.

[0015] As a further improvement of the present invention, the dimming module further includes a lens group, which includes a first lens group and a second lens group. The first lens group is disposed on the reflected light path of the reflector, and the second lens group is disposed on the polarized light path of the second polarizing beam splitter.

[0016] As a further improvement of the present invention, the lens group further includes a third lens group, which is disposed between the first polarizing beam splitter and the image display module.

[0017] As a further improvement of the present invention, the first light-transmitting area is the opening area of ​​the screen. The display light emitted by the image display module passes through the first polarizing beam splitter and exits from the opening area of ​​the screen. The light incident from the opening area of ​​the screen is reflected by the first polarizing beam splitter and enters the camera module.

[0018] The present invention also provides an electronic device, which includes the image acquisition and display device described above and a housing or display panel, wherein a light-transmitting unit is disposed on the housing and / or the display panel.

[0019] The beneficial effects of this invention are as follows: By using a polarizing beam splitter, natural light containing various vibration directions is split into two beams with two mutually perpendicular polarization directions. The polarized light used for display and the polarized light entering the camera module have different polarization directions, making the optical paths for image acquisition and display independent and non-interfering. This allows for simultaneous image acquisition and display with excellent display and acquisition effects. The light from the first and second light-transmitting areas, after passing through the polarizing beam splitter, results in two mutually perpendicular polarized beams. An adjustable polarizing plate allows either the polarized light from the first or second light-transmitting area to enter the camera module separately, enabling time-division multiplexing of the two images using the same camera module. Attached Figure Description

[0020] Figure 1-1 This is a schematic diagram of forward image acquisition of an image acquisition and display device according to the first embodiment of the present invention;

[0021] Figure 1-2 This is a top-view image acquisition schematic diagram of an image acquisition and display device according to the first embodiment of the present invention;

[0022] Figure 1-3 This is a schematic diagram of the top and front image display of an image acquisition and display device according to the first embodiment of the present invention;

[0023] Figure 1-4 This is a schematic diagram of a forward image display module of an image acquisition and display device according to the first embodiment of the present invention, which only outputs vertically polarized light.

[0024] Figure 2-1 This is a schematic diagram of forward image acquisition of an image acquisition and display device according to the second embodiment of the present invention;

[0025] Figure 2-2 This is a schematic diagram of a rear-view image acquisition of an image acquisition and display device according to a second embodiment of the present invention;

[0026] Figure 2-3 This is a schematic diagram of the forward and backward image display of an image acquisition and display device according to the second embodiment of the present invention;

[0027] Figure 2-4 This is a schematic diagram of a forward image display module of an image acquisition and display device according to the second embodiment of the present invention, which only outputs vertically polarized light. Figure 3-1 This is a schematic diagram of forward image acquisition of an image acquisition and display device according to the third embodiment of the present invention;

[0028] Figure 3-2 This is a schematic diagram of a rear-view image acquisition of an image acquisition and display device according to the third embodiment of the present invention;

[0029] Figure 3-3 This is a schematic diagram of a forward image display of an image acquisition and display device according to a third embodiment of the present invention;

[0030] Figure 3-4 This is a schematic diagram of a rear-view image display of an image acquisition and display device according to the third embodiment of the present invention;

[0031] Figure 4-1 This is a schematic diagram of a rear-view image display of an image acquisition and display device according to the fourth embodiment of the present invention;

[0032] Figure 4-2 This is a second schematic diagram of a rear-view image display of an image acquisition and display device according to the fourth embodiment of the present invention;

[0033] Figure 4-3 This is a schematic diagram (3) of a rear-view image display of an image acquisition and display device according to the fourth embodiment of the present invention;

[0034] Figure 5-1 This is a schematic diagram of forward image acquisition of an image acquisition and display device according to the fifth embodiment of the present invention;

[0035] Figure 5-2 This is a schematic diagram of a rear-view image acquisition of an image acquisition and display device according to the fifth embodiment of the present invention;

[0036] Figure 5-3 This is a top-view image acquisition schematic diagram of an image acquisition and display device according to the fifth embodiment of the present invention;

[0037] Figure 5-4 This is a schematic diagram of a forward image display of an image acquisition and display device according to the fifth embodiment of the present invention;

[0038] Figure 5-5 This is a schematic diagram of a rear-view image display of an image acquisition and display device according to the fifth embodiment of the present invention;

[0039] Figure 5-6 This is a top-view image display diagram of an image acquisition and display device according to the fifth embodiment of the present invention;

[0040] Figure 6-1 This is a schematic diagram of forward image acquisition of an image acquisition and display device according to the sixth embodiment of the present invention;

[0041] Figure 6-2 This is a schematic diagram of a rear-view image acquisition of an image acquisition and display device according to the sixth embodiment of the present invention;

[0042] Figure 6-3 This is a second schematic diagram of the rear image acquisition of an image acquisition and display device according to the sixth embodiment of the present invention;

[0043] Figure 6-4 This is a schematic diagram of a forward image display of an image acquisition and display device according to the sixth embodiment of the present invention;

[0044] Figure 6-5 This is a schematic diagram of a rear-view image display of an image acquisition and display device according to the sixth embodiment of the present invention;

[0045] Figure 6-6 This is a second schematic diagram of a rear-view image display of an image acquisition and display device according to the sixth embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the structure of an image acquisition and display device according to the seventh embodiment of the present invention.

[0047] In the picture,

[0048] 1. Screen; 21. First polarizing beam splitter; 22. Second polarizing beam splitter; 3. Image display module; 4. Camera module; 5. Reflector; 61. First adjustable polarizer; 62. Second adjustable polarizer; 71. First lens group; 72. Second lens group; 73. Third lens group; 8. Adjustable rotator. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0050] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0051] Furthermore, the terminology used in the description of this invention is for illustrative purposes only and is not intended to limit the scope of this disclosure. The terms "comprising" and / or "including" are used to specify the presence of elements, steps, operations, and / or components, but do not exclude the presence or addition of one or more other elements, steps, operations, and / or components. The terms "first," "second," etc., may be used to describe various elements, do not represent an order, and do not limit these elements. Additionally, in the description of this invention, unless otherwise stated, "a plurality of" means two or more. These terms are used only to distinguish one element from another. These and / or other aspects become apparent in conjunction with the following drawings, and those skilled in the art will more readily understand the description of embodiments of the invention. The drawings are used for illustrative purposes only to depict embodiments of this disclosure. Those skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods shown in this invention can be employed without departing from the principles of this disclosure.

[0052] The first embodiment of the present invention provides an image acquisition and display device, comprising: a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The dimming module includes a first polarizing beam splitter 21 and a first adjustable polarizer 61, the first adjustable polarizer 61 being disposed between the first polarizing beam splitter 21 and the camera module 4. The light-transmitting unit includes a first light-transmitting area and a second light-transmitting area. Display light is emitted through the first and second light-transmitting areas for image display, and acquisition light is incident through the first and second light-transmitting areas for image acquisition. The first polarizing beam splitter 21 splits the transmitted light into two polarized beams with two mutually perpendicular polarization directions, the polarization directions of the two beams being perpendicular and not interfering with each other. The display light emitted from the image display module 3 is first split by the first polarizing beam splitter 21 and then transmitted to the first and / or second light-transmitting areas for emission, thereby realizing image display. The incident light from the first light-transmitting area passes through the first polarizing beam splitter 21 to obtain the first light-transmitting area polarized light, and the incident light from the second light-transmitting area passes through the first polarizing beam splitter 21 to obtain the second light-transmitting area polarized light. The polarization directions of the first light-transmitting area polarized light and the second light-transmitting area polarized light are perpendicular to each other. The first adjustable polarizer 61 allows the first light-transmitting area polarized light or the second light-transmitting area polarized light to enter the camera module 4 by adjusting the polarization direction. The first adjustable polarizer 61 enables time-division acquisition of images in two directions.

[0053] In this embodiment, as Figures 1-1 to 1-4 As shown, the device, for example, acquires forward and top images and displays them, with the forward image on the right side of the image and the top image on the top side. The first light-transmitting area is located on the right side, and the second light-transmitting area is located on the top side.

[0054] When acquiring forward images, such as Figure 1-1As shown, natural light entering from the first light-transmitting area (as incident light) reaches the first polarizing beam splitter 21. The first polarizing beam splitter 21 splits the incident light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected (as reflected polarized light). The direction of the reflected polarized light is perpendicular to the direction of the incident light and faces the camera module 4. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the reflected polarized light to pass through. The reflected polarized light enters the camera module 4 to achieve forward image acquisition. The other polarized light passes through the first polarizing beam splitter 21 (as transmitted polarized light). The direction of the transmitted polarized light is the same as the direction of the incident light and is eventually lost.

[0055] When acquiring top-view images, such as Figure 1-2 As shown, natural light entering from the second light-transmitting area (as incident light) reaches the first polarizing beam splitter 21. The first polarizing beam splitter 21 splits the incident light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected (as reflected polarized light). The direction of the reflected polarized light is perpendicular to the direction of the incident light and faces the image display module 3, and is eventually lost. The other polarized light passes through the first polarizing beam splitter 21 (as transmitted polarized light). The direction of the transmitted polarized light is consistent with the direction of the incident light. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the transmitted polarized light to pass through. The transmitted polarized light enters the camera module 4 to achieve top-view image acquisition.

[0056] When displaying images, such as Figure 1-3 As shown, image display module 3 can output natural light containing various vibration directions, or as... Figure 1-4 The image shows polarized light outputting only a single vibration direction. When the image display module 3 outputs natural light, the light emitted by the image display module 3 is split into two beams at the first polarization beam splitter 21 according to two mutually perpendicular polarization directions. One beam of polarized light passes through the first polarization beam splitter 21 as transmitted polarized light, and this transmitted polarized light is directed towards the first light-transmitting area and exits from the first light-transmitting area, realizing forward image display; the other beam of polarized light is reflected as reflected polarized light, and this reflected polarized light is directed towards the second light-transmitting area and exits from the second light-transmitting area, realizing top-facing image display. Figure 1-4 As shown, when the image display module 3 outputs polarized light in a single vibration direction, the polarized light passes through the first polarization beam splitter 21, thereby achieving forward-facing image display only.

[0057] As an optional implementation of the first embodiment, the device includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The dimming module includes a first polarizing beam splitter 21, a first adjustable polarizer 61, and a first lens group 71. The first lens group 71 can be disposed in the optical path between the first polarizing beam splitter 21 and the second light-transmitting area or the first light-transmitting area. The image display module 3 emits display light, and by adjusting the lens group, a projection function can be achieved.

[0058] In an optional implementation, the device of the second embodiment includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The difference from the first embodiment is that the dimming module further includes a reflector 5. The reflector 5 is disposed in the optical path between the second light-transmitting area and the first polarizing beam splitter 21. The reflector 5 reflects light incident from the second light-transmitting area into the first polarizing beam splitter 21, or reflects light emitted from the image display module 3 to the second light-transmitting area. The display light emitted from the image display module 3 is first split by the first polarizing beam splitter 21. One beam of polarized light passes through the first polarizing beam splitter 21 and exits from the first light-transmitting area, realizing image display in the first light-transmitting area. The other beam of polarized light is reflected to the reflector 5, then reflected again by the reflector 5, and exits from the second light-transmitting area, realizing image display in the second light-transmitting area. The incident light from the first light-transmitting area is split into two beams by the first polarizing beam splitter 21. One beam is reflected and enters the camera module 4, while the other beam is lost after passing through the first polarizing beam splitter 21. The incident light from the second light-transmitting area is reflected by the mirror 5 and then enters the first polarizing beam splitter 21. The first polarizing beam splitter 21 splits the incident light into two beams with two mutually perpendicular polarization directions. One beam enters the camera module 4 after passing through the first polarizing beam splitter 21, while the other beam is lost after being reflected. The polarization directions of the first and second light-transmitting area polarized light entering the camera module 4 are perpendicular to each other. The first adjustable polarizer 61 allows either the first light-transmitting area polarized light or the second light-transmitting area polarized light to enter the camera module 4 by adjusting the polarization direction.

[0059] In this embodiment, as Figures 2-1 to 2-4 As shown, the device, for example, acquires forward and backward images and displays them, with the forward image on the right and the backward image on the left. The first light-transmitting area is located on the right and the second light-transmitting area is located on the left.

[0060] When acquiring forward images, such as Figure 2-1As shown, natural light entering from the first light-transmitting area reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light and toward the camera module 4. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through, and the reflected polarized beam enters the camera module 4 to achieve forward image acquisition. The other polarized beam passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized beam is the same as the direction of the incident light, and it is eventually lost.

[0061] When acquiring backward images, such as Figure 2-2 As shown, the natural light entering from the second light-transmitting area is directed to the right. After reaching the reflector 5, it is reflected by the reflector 5, and the reflected light is directed downwards. The reflected light reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is opposite to that of the incident light and is directed towards the image display module 3, and is eventually lost. The other polarized beam passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized beam is perpendicular to that of the incident light. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the transmitted polarized beam to pass through, and the transmitted polarized beam enters the camera module 4 to achieve top-view image acquisition.

[0062] When displaying an image, the image display module 3 can output natural light containing various vibration directions, or as... Figure 2-4 The image display module 3 outputs polarized light with only a single vibration direction. When the image display module 3 outputs natural light, the light emitted by the image display module 3 is split into two beams at the first polarization beam splitter 21 according to two mutually perpendicular polarization directions. One beam of polarized light passes through the first polarization beam splitter 21, and the direction of this transmitted polarized light is towards the first light-transmitting area, and it exits from the first light-transmitting area, realizing forward image display; the other beam of polarized light is reflected, and this reflected polarized light is towards the reflector 5. After being reflected by the reflector 5, it exits from the second light-transmitting area, realizing backward image display. When the image display module 3 outputs polarized light with a single vibration direction, as shown... Figure 2-4 As shown, polarized light passes through the first polarization beam splitter 21, thereby achieving forward-facing image display only.

[0063] As an optional implementation of the second embodiment, the device includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The dimming module includes a first polarizing beam splitter 21, a first adjustable polarizer 61, a reflector 5, and a first lens group 71. The first lens group 71 is disposed in the reflected light path of the reflector 5, and the first lens group 71 can be disposed at one end or both ends of the light path of the reflector 5. By adjusting the lens group, a projection function can be realized, so that the image is not only displayed on the surface.

[0064] In an optional implementation, the device of the third embodiment includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The difference from the second embodiment is that the dimming module further includes a second adjustable polarizer 62. The second adjustable polarizer 62 is disposed in the optical path between the first polarizing beam splitter 21 and the image display module 3. By adjusting the polarization direction, the second adjustable polarizer 62 causes the display light emitted by the image display module 3 to have different polarization directions, so that the image is displayed only in the first light-transmitting area or only in the second light-transmitting area.

[0065] In this embodiment, as Figures 3-1 to 3-4 As shown, the device, for example, acquires forward and backward images and displays them, with the forward image on the right and the backward image on the left. The first light-transmitting area is located on the right and the second light-transmitting area is located on the left.

[0066] When acquiring forward images, such as Figure 3-1 As shown, natural light entering from the first light-transmitting area reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light and toward the camera module 4. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through, and the polarized beam enters the camera module 4 to achieve forward image acquisition. The other polarized beam passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized beam is the same as the direction of the incident light, and is eventually lost.

[0067] When acquiring backward images, such as Figure 3-2As shown, the natural light entering from the second light-transmitting area is directed to the right. After reaching the reflector 5, it is reflected by the reflector 5, and the reflected light is directed downwards. The reflected light reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized light is opposite to that of the incident light and is directed towards the image display module 3, and is eventually lost. The other polarized light passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized light is perpendicular to that of the incident light. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the transmitted polarized light to pass through, and the transmitted polarized light enters the camera module 4 to achieve rearward image acquisition.

[0068] When displaying images, such as Figure 3-3 and 3-4 As shown, the image display module 3 can output natural light containing various vibration directions. The display light reaches the second adjustable polarizer 62. By rotating the direction of the second adjustable polarizer 62, display light with different polarization directions can be obtained. Display light with a single polarization direction can be transmitted or reflected by the first polarizing beam splitter 21. The transmitted polarized light is used for forward image display, and the reflected polarized light is used for backward image display after being reflected by the reflector 5. By controlling the polarization direction of the display light through the second adjustable polarizer 62, the switching between two mutually perpendicular lights can be realized, thereby controlling the switching of image display in the forward and backward directions.

[0069] In an optional implementation, the device of the fourth embodiment includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The difference from the third embodiment is that the dimming module further includes a first lens group 71. The first lens group 71 is disposed in the reflected light path of the reflector 5. The first lens group 71 can be disposed at one end or both ends of the light path of the reflector 5. Figures 4-1 to 4-3 As shown. The image display module 3 emits display light, which, by adjusting the lens group, enables projection, allowing the image to be displayed not only on the surface.

[0070] In an optional implementation, the device of the fifth embodiment includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The dimming module includes a first polarizing beam splitter 21, a second polarizing beam splitter 22, a first adjustable polarizer 61, a second adjustable polarizer 62, and an adjustable rotator 8. The adjustable rotator 8 is disposed between the second polarizing beam splitter 22 and the first polarizing beam splitter 21. The rotation angle of the adjustable rotator 8 can be adjusted to 0 degrees or 90 degrees, so that the polarized light passing through the adjustable rotator 8 remains unchanged or rotates 90 degrees. The second adjustable polarizer 62 adjusts the polarization direction so that the display light emitted by the image display module 3 has a corresponding polarization direction, so that the image is displayed only in the first light-transmitting area, or only in the second light-transmitting area, or only in the third light-transmitting area.

[0071] In this embodiment, for example, forward, backward, and top-view images are acquired and displayed, such as... Figures 5-1 to 5-6 As shown, the first light-transmitting area is located on the right, the second light-transmitting area is located on top, and the third light-transmitting area is located on the left.

[0072] When acquiring forward images, such as Figure 5-1 As shown, natural light entering from the first light-transmitting area reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light and toward the camera module 4. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through, and the polarized beam enters the camera module 4 to achieve forward image acquisition. The other polarized beam passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized beam is the same as the direction of the incident light, and it is eventually lost.

[0073] When acquiring top-view images, such as Figure 5-3 As shown, the natural light entering from the second light-transmitting area first reaches the second polarizing beam splitter 22. The second polarizing beam splitter 22 splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light, and it is eventually lost. The other polarized beam passes through the adjustable rotator 8, and the polarization direction remains unchanged. Then it reaches the first polarizing beam splitter 21 and passes through the first polarizing beam splitter 21. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through. The polarized beam enters the camera module 4 to achieve top-view image acquisition.

[0074] When acquiring backward images, such as Figure 5-2 As shown, the natural light entering from the third light-transmitting area first reaches the second polarizing beam splitter 22. The second polarizing beam splitter 22 splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light. After passing through the adjustable beam rotator 8, the polarization direction is rotated by 90 degrees, and then it reaches the first polarizing beam splitter 21 and passes through the first polarizing beam splitter 21. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through. The polarized beam enters the camera module 4 to achieve rear image acquisition. The other polarized beam passes through the second polarizing beam splitter 22 and is eventually lost.

[0075] When displaying images, such as Figures 5-4 to 5-6As shown, the image display module 3 can output natural light containing various vibration directions. The light emitted by the image display module 3 first passes through the second adjustable polarizer 62. The second adjustable polarizer 62 adjusts the polarization direction so that the display light emitted by the image display module 3 has a corresponding polarization direction, such as... Figure 5-4 As shown, if a forward image display is required, the polarization direction is adjusted by the second adjustable polarizer 62, so that the display light passes through the first polarizing beam splitter 21 and exits from the first light-transmitting area, thus achieving a forward image display; as Figure 5-5 As shown, if a backward image display is required, the polarization direction is adjusted by the second adjustable polarizer 62, so that the display light is reflected at the first polarizing beam splitter 21 and reaches the adjustable beam rotator 8. The adjustable beam rotator 8 does not change the polarization direction. The polarized light is reflected by the second polarizing beam splitter 22 and then exits through the third light-transmitting area, thus realizing the backward image display; Figure 5-6 As shown, if top-view image display is required, the polarization direction is adjusted by the second adjustable polarizer 62 so that the display light is reflected at the first polarizing beam splitter 21 and reaches the adjustable beam rotator 8. The polarization direction is rotated by 90 degrees by the adjustable beam rotator 8. The rotated polarized light is transmitted through the second polarizing beam splitter 22 and then exits through the second light-transmitting area, thus realizing top-view image display.

[0076] In an optional implementation, the device of the sixth embodiment includes a light-transmitting unit, a dimming module, an image display module 3, and a camera module 4. The dimming module includes a first polarizing beam splitter 21, a second polarizing beam splitter 22, a first adjustable polarizer 61, a second adjustable polarizer 62, a reflector 5, and an adjustable rotator 8. The first adjustable polarizer 61 is disposed between the first polarizing beam splitter 21 and the camera module 4, and the second adjustable polarizer 62 is disposed between the first polarizing beam splitter 21 and the image display module 3. The second adjustable polarizer 62 adjusts the polarization direction so that the display light emitted by the image display module 3 has a corresponding polarization direction, so that the image is displayed only in the first light-transmitting area, or only in the second light-transmitting area, or only in the third light-transmitting area.

[0077] In this embodiment, for example, one forward image and two backward images are acquired, and the forward and backward images are displayed, with the forward image on the right side of the image and the backward image on the left side, as shown. Figures 6-1 to 6-6 As shown, the first light-transmitting area is located on the right, while the second and third light-transmitting areas are both located on the left.

[0078] When acquiring forward images, such as Figure 6-1As shown, natural light entering from the first light-transmitting area reaches the first polarizing beam splitter 21, which splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light and toward the camera module 4. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through, and the polarized beam enters the camera module 4 to achieve forward image acquisition. The other polarized beam passes through the first polarizing beam splitter 21, and the direction of the transmitted polarized beam is the same as the direction of the incident light, and it is eventually lost.

[0079] When acquiring backward images, such as Figure 6-2 and 6-3 As shown, natural light entering from the second light-transmitting area is first reflected by the reflector 5. The light reflected by the reflector 5 first reaches the second polarizing beam splitter 22. The second polarizing beam splitter 22 splits the light into two polarized beams according to two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light. The polarization direction of the reflected polarized beam remains unchanged after passing through the adjustable beam rotator 8, and then it reaches the first polarizing beam splitter 21 and passes through the first polarizing beam splitter 21. At the same time, the first adjustable polarizer 61 rotates to an angle that allows the polarized beam to pass through. The polarized beam enters the camera module 4 to realize the back-view image acquisition that enters through the second light-transmitting area. The other polarized beam passes through the second polarizing beam splitter 22 and is eventually lost. Natural light entering from the third light-transmitting area first reaches the second polarizing beam splitter 22. The second polarizing beam splitter 22 splits the light into two polarized beams with two mutually perpendicular polarization directions. One of the polarized beams is reflected, and the direction of the reflected polarized beam is perpendicular to the direction of the incident light. The polarization direction of the reflected polarized beam is rotated by 90 degrees after passing through the adjustable beam rotator 8, and then reaches the first polarizing beam splitter 21 and passes through the first polarizing beam splitter 21. At the same time, the first adjustable polarizer 61 is rotated to an angle that allows the polarized beam to pass through. The polarized beam enters the camera module 4 to realize the back-view image acquisition that enters through the third light-transmitting area. The other polarized beam passes through the second polarizing beam splitter 22 and is eventually lost.

[0080] When displaying images, such as Figures 6-4 to 6-6 As shown, the image display module 3 can output natural light containing various vibration directions. The light emitted by the image display module 3 first passes through the second adjustable polarizer 62. The second adjustable polarizer 62 adjusts the polarization direction so that the display light emitted by the image display module 3 has a corresponding polarization direction, such as... Figure 6-4 As shown, if a forward image display is required, the polarization direction is adjusted by the second adjustable polarizer 62, so that the display light passes through the first polarizing beam splitter 21 and exits from the first light-transmitting area, thus achieving a forward image display; as Figure 6-5As shown, if a rear-view image display of the third light-transmitting area is required, the polarization direction is adjusted by the second adjustable polarizer 62, so that the display light is reflected at the first polarizing beam splitter 21 and reaches the adjustable beam rotator 8. The adjustable beam rotator 8 does not change the polarization direction. The polarized light is reflected by the second polarizing beam splitter 22 and then exits through the third light-transmitting area, thus realizing the rear-view image display of the third light-transmitting area; Figure 6-6 As shown, if a rearward image display of the second light-transmitting area is required, the polarization direction is adjusted by the second adjustable polarizer 62 so that the display light is reflected at the first polarizing beam splitter 21 and reaches the adjustable beam rotator 8. The polarization direction is rotated by 90 degrees by the adjustable beam rotator 8. The rotated polarized light is transmitted through the second polarizing beam splitter 22 and enters the reflector 5. After being reflected by the reflector 5, it exits through the second light-transmitting area, thus realizing the rearward image display of the second light-transmitting area.

[0081] The polarization direction of polarized light is changed by the adjustable rotator 8, and multi-channel image acquisition is achieved in conjunction with the first polarization beam splitter 21. The images of different light transmission areas are displayed in conjunction with the second adjustable polarizer 62 and the second polarization beam splitter 22.

[0082] As an optional implementation of the sixth embodiment, such as Figures 6-1 to 6-6 As shown, the dimming module includes a lens group, which includes a first lens group 71. The first lens group 71 is disposed on the reflected light path of the reflector 5. The first lens group 71 can be disposed at one end or both ends of the light path of the reflector 5.

[0083] As an optional implementation of the sixth embodiment, such as Figures 6-1 to 6-6 As shown, the lens group includes a first lens group 71 and a second lens group 72. The second lens group 72 is disposed on the polarized light path of the second polarizing beam splitter 22, for example, between the second polarizing beam splitter 22 and the third light-transmitting area. The first lens group 71 is disposed between the reflector 5 and the second light-transmitting area. The reflector 5, the first lens group 71, and the second lens group 72 enable the acquisition and display of two rearward images. When displaying rearwards, the polarization directions of the two display rays are perpendicular to each other (the polarization direction is changed by the adjustable rotator 8). By adjusting the lens group, a projection function can be achieved. Combined with polarized glasses, a 3D display viewing effect can be realized.

[0084] As an optional implementation method of the sixth embodiment, such as Figures 6-1 to 6-6 As shown, the lens group also includes a third lens group 73, which is disposed between the first polarizing beam splitter 21 and the image display module 3. When a second adjustable polarizer 62 is added between the first polarizing beam splitter 21 and the image display module 3, the order of the second adjustable polarizer 62 and the third lens group 73 can be interchanged.

[0085] In one optional embodiment, the device of the seventh embodiment includes a lens group, which includes a third lens group disposed between the first polarizing beam splitter and the image display module. Alternatively, the lens group includes a first lens group 71 and a third lens group 73, with the first lens group disposed in the reflected light path of the mirror and the third lens group disposed between the first polarizing beam splitter and the image display module. Alternatively, the lens group includes a second lens group 72 and a third lens group 73, with the second lens group disposed in the polarized light path of the second polarizing beam splitter and the third lens group disposed between the first polarizing beam splitter and the image display module. Alternatively, the first lens group 71, the second lens group 72, and the third lens group 73 can be simultaneously disposed, with the first lens group disposed in the reflected light path of the mirror, the second lens group disposed in the polarized light path of the second polarizing beam splitter, and the third lens group disposed between the first polarizing beam splitter and the image display module. Distributing multiple lens groups can improve the projection effect. Another optional embodiment, such as... Figure 7 As shown, when the first lens group 71 is disposed between the reflector 5 and the second light-transmitting area, and the second lens group 72 is disposed between the second polarizing beam splitter 22 and the third light-transmitting area, the first lens group 72 and the second lens group 73 can be configured as a whole, that is, a single lens group.

[0086] In one optional implementation, the first light-transmitting area is the opening area of ​​the screen 1. The display light emitted by the image display module 3 passes through the first polarizing beam splitter 21 and exits from the opening area of ​​the screen 1. This can simultaneously realize under-screen display and image acquisition. Moreover, the optical paths for image acquisition and display are independent and do not interfere with each other, resulting in better image acquisition and display effects.

[0087] An electronic device according to an embodiment of the present invention includes an image acquisition and display device provided in the above embodiments of the present invention, and a housing or display panel. A first light-transmitting area, a second light-transmitting area, and / or a third light-transmitting area may be disposed on the housing or display panel. For example, one side of the electronic device is a display panel, and the other side is a housing. The first light-transmitting area is disposed on the display panel, and the second and third light-transmitting areas are disposed on the housing. The image acquisition and display device can realize forward image acquisition and display, and / or backward image acquisition and display, and / or side image acquisition and display. The electronic device may be, for example, a mobile phone, a computer, a camera, an electronic doorbell, etc.

[0088] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0089] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0090] Those skilled in the art will understand that although the invention has been described with reference to exemplary embodiments, various changes may be made and its elements may be substituted with equivalents without departing from the scope of the invention. Furthermore, many modifications may be made to adapt particular situations or materials to the teachings of the invention without departing from the essential scope of the invention. Therefore, the invention is not limited to the specific embodiments disclosed, but rather the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. An image acquisition and display device, characterized in that, The device includes a light-transmitting unit, a dimming module, an image display module, and a camera module; The light-transmitting unit includes a first light-transmitting area and a second light-transmitting area; The dimming module includes a first polarizing beam splitter and a first adjustable polarizer. The first polarizing beam splitter splits the transmitted light into two polarized beams in two mutually perpendicular polarization directions. The first adjustable polarizer is disposed between the first polarizing beam splitter and the camera module. The display light emitted by the image display module is transmitted to the first light-transmitting area and / or the second light-transmitting area after passing through the first polarizing beam splitter; The incident light from the first light-transmitting area passes through the first polarizing beam splitter to obtain polarized light from the first light-transmitting area, and the incident light from the second light-transmitting area passes through the first polarizing beam splitter to obtain polarized light from the second light-transmitting area. The polarization directions of the polarized light from the first light-transmitting area and the polarized light from the second light-transmitting area are perpendicular to each other. The incident light from the first light-transmitting area is reflected by the first polarizing beam splitter to obtain reflected polarized light from the first light-transmitting area. The first adjustable polarizer allows the reflected polarized light from the first light-transmitting area to enter the camera module or allows the polarized light from the second light-transmitting area to enter the camera module by adjusting the polarization direction.

2. The image acquisition and display device according to claim 1, characterized in that, The dimming module also includes a reflector, which is disposed in the optical path between the second light-transmitting area and the first polarizing beam splitter. The reflector reflects light to the first polarizing beam splitter or to the second light-transmitting area.

3. The image acquisition and display device according to claim 1 or 2, characterized in that, The dimming module further includes a second adjustable polarizer, which is disposed between the first polarizing beam splitter and the image display module. The second adjustable polarizer adjusts the polarization direction so that the display light emitted by the image display module has different polarization directions.

4. The image acquisition and display device according to claim 2, characterized in that, The dimming module also includes a lens group, which includes a first lens group disposed on the reflected light path of the reflector.

5. The image acquisition and display device according to claim 3, characterized in that, The dimming module further includes a second polarizing beam splitter and an adjustable beam rotator. The light transmission unit further includes a third light transmission area. The adjustable beam rotator is disposed between the first polarizing beam splitter and the second polarizing beam splitter. The second polarizing beam splitter splits the transmitted light into two polarized beams in two mutually perpendicular polarization directions. The incident light in the second light-transmitting area passes sequentially through the second polarizing beam splitter, the adjustable beam rotator, and the first polarizing beam splitter before entering the camera module; the incident light in the third light-transmitting area passes sequentially through the second polarizing beam splitter and the first polarizing beam splitter before entering the camera module. The display light emitted by the image display module passes sequentially through the first polarizing beam splitter, the adjustable beam rotator, and the second polarizing beam splitter before being transmitted to the second light-transmitting area and / or the third light-transmitting area.

6. The image acquisition and display device according to claim 5, characterized in that, The dimming module further includes a lens group, which includes a second lens group disposed on the optical path of the polarized light of the second polarizing beam splitter; and when the dimming module includes a reflector, the lens group further includes a first lens group disposed on the reflected optical path of the reflector.

7. The image acquisition and display device according to claim 6, characterized in that, The lens group further includes a third lens group, which is disposed between the first polarizing beam splitter and the image display module.

8. The image acquisition and display device according to claim 5, characterized in that, The dimming module further includes a lens group, which includes a third lens group disposed between the first polarizing beam splitter and the image display module.

9. The image acquisition and display device according to claim 1, characterized in that, The first light-transmitting area is the opening area of ​​the screen. The display light emitted by the image display module passes through the first polarizing beam splitter and exits from the opening area of ​​the screen. The light incident from the opening area of ​​the screen is reflected by the first polarizing beam splitter and enters the camera module.

10. An electronic device, characterized in that, The electronic device includes an image acquisition and display device as described in any one of claims 1 to 9, and a housing or display panel, wherein a light-transmitting unit is disposed on the housing and / or the display panel.

Images