Perspective display, electric control glasses and system thereof

Abstract

A perspective display includes a frame; the controller is arranged on the framework and is used for transmitting a control signal according to a display content; the lens is arranged on the framework and comprises a polarization element which is used for limiting a polarization state of ambient light; a partial mirror element for reflecting and transmitting the ambient light; the polarization converter is arranged between the polarization element and the partial reflection mirror element and is used for converting the polarization state of the ambient light passing through the polarization element; wherein at least one of the polarization element, the partial reflection mirror element and the polarization converter is a liquid crystal panel which is connected to the controller and is provided with an active matrix, and the liquid crystal panel is used for displaying the display content according to the control signal.

Description

Technical Field

[0001] The present invention relates to a perspective display, and particularly to a perspective display capable of displaying an image on one side while having an acceptable impact on the user's vision on the other side. Background Art

[0002] Nowadays, virtual platforms have been maturely developed and widely used for information exchange. If wearable devices can bridge the gap between virtual and real-life interactions, then wearable devices can enhance the connection of the wearer when using virtual platforms.

[0003] Glasses are common accessories in daily life and are very suitable as an interaction medium for wearable devices. However, current methods of displaying images on glasses (such as using semi-transparent coated lenses or perforated opaque lenses) can only display static images and cannot dynamically change the images. In addition, the displayed images may interfere with the wearer's vision. Therefore, developing glasses that can display images without interfering with the wearer's vision has become one of the goals pursued by the industry. Summary of the Invention

[0004] One of the main objects of the present invention is to provide a perspective display, an electronically controlled glasses and its system to solve the above problems.

[0005] The present invention provides a perspective display, comprising a frame; a controller disposed on the frame for transmitting a control signal according to a display content; and a lens disposed on the frame, comprising a polarization element for restricting a polarization state of an ambient light; a partial mirror element for reflecting and transmitting the ambient light; and a polarization converter disposed between the polarization element and the partial mirror element for converting the polarization state of the ambient light passing through the polarization element; wherein at least one of the polarization element, the partial mirror element and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used for displaying the display content according to the control signal.

[0006] The present invention provides an electronically controlled glasses, comprising a frame; a controller disposed on the frame for transmitting a control signal according to a display content; and a lens disposed on the frame, comprising a polarization element for restricting a polarization state of an ambient light; a partial mirror element for reflecting and transmitting the ambient light; and a polarization converter disposed between the polarization element and the partial mirror element for converting the polarization state of the ambient light passing through the polarization element; wherein at least one of the polarization element, the partial mirror element and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used for displaying the display content according to the control signal.

[0007] The present invention provides a system, comprising a platform for providing a user interface and generating display content according to user control; and an electronically controlled glasses coupled to the platform, including a frame; a controller disposed in the frame for receiving the display content and transmitting a control signal according to the display content; and a lens disposed in the frame, including a polarization element for restricting a polarization state of ambient light; a partial mirror element for reflecting and transmitting the ambient light; and a liquid crystal panel disposed between the polarization element and the partial mirror element for converting the polarization state of the ambient light passing through the polarization element; wherein at least one of the polarization element, the partial mirror element, and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used to display the display content according to the control signal. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of a user interaction system according to Embodiment 1 of the present invention.

[0009] Figure 2 According to an embodiment of the present invention Figure 1 Schematic diagrams of a front view and a back view visual states of the electronically controlled glasses.

[0010] Figure 3 According to an embodiment of the present invention Figure 1 Schematic diagram of the electronically controlled glasses.

[0011] Figure 4 Schematic diagram of a lens of a perspective display according to Embodiment 1 of the present invention.

[0012] Figure 5A Schematic diagrams of various shapes of each pixel of a polarization converter according to an embodiment of the present invention.

[0013] Figure 5B Schematic diagrams of various patterns of a display area and a non-display area according to an embodiment of the present invention.

[0014] Figures 6A - 6D Schematic diagram of the dispersion characteristics of three elements of a perspective display according to an embodiment of the present invention.

[0015] Figure 7 Schematic diagram of the original color to be displayed being mixed by RGB colors operating at various display gray levels according to an embodiment of the present invention.

[0016] Figures 8A - 8E Schematic diagram of the electronically controlled glasses according to an embodiment of the present invention.

[0017] Figure 9 According to an embodiment of the present invention, the display content is Figure 1 Flowchart of the perspective display.

[0018] Figure 10 This is a schematic diagram of the user interaction system according to the first embodiment of the present invention.

[0019] Description of the reference numerals in the drawings:

[0020] 1, 9: User interaction system

[0021] 10: Platform

[0022] 20: Transparent display

[0023] 30: Electric control glasses

[0024] 202: Frame

[0025] 204: Controller

[0026] 206: Lens

[0027] L1, L2, L3, L4, L5, L6, L7: Light rays

[0028] 2061: Polarization converter

[0029] 2062: Polarization element

[0030] 2063: Partially reflecting mirror element

[0031] 2064: Light source

[0032] 2065: Waveguide

[0033] 2066: Additional polarization element

[0034] 50: Process

[0035] S500, S502, S504: Steps Detailed implementation manners

[0036] In the description and claims, certain terms are used to refer to specific elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same element. This description and claims do not use the difference in names as a way to distinguish elements, but use the difference in functions of elements as the criterion for distinction. The term "comprising" mentioned throughout the description and claims is an open-ended term, and thus should be interpreted as "comprising but not limited to". In addition, the term "coupled" herein includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0037] Please refer to Figure 1 , Figure 1This is a schematic diagram of the user interaction system 1 according to Embodiment 1 of the present invention. As Figure 1 shown, the user interaction system 1 includes a platform 10 and a see-through display 20. The platform 10 is coupled to the see-through display 20 and can provide display content for the see-through display 20 to display. Specifically, the display content can be various images or videos dynamically displayed by the see-through display 20. It should be noted that the see-through display 20 can be implemented in the form of a window, a door panel, a windshield, a display cabinet, a partition, a wall, glasses, or a mask, etc., but not limited thereto. For the sake of clear illustration, in the following embodiments, the see-through display is implemented as an electronic control glasses 30 as an example.

[0038] When the electronic control glasses 30 display the display content, the vision or line of sight of the wearer (such as the user of the electronic control glasses 30) will not be affected. In other words, the display content will not interfere with the user's line of sight. It should be noted that not affecting the wearer's vision can also mean that the display content partially interferes with the wearer's vision, but the wearer can still clearly see the surrounding environment. Please refer to Figure 2 , Figure 2 This is a schematic diagram of the visual states of the front and back of the electronic control glasses 30 according to an embodiment of the present invention. As Figure 2 shown, a mobile phone advertisement is displayed on the front of the electronic control glasses 30 for passers-by to see the mobile phone advertisement. On the other hand, environmental light can penetrate the electronic control glasses 30, enabling the wearer to clearly see the surrounding environment from the back of the electronic control glasses 30.

[0039] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the electronic control glasses 30 according to an embodiment of the present invention. As Figure 3 shown, the electronic control glasses 30 include a frame 202, a controller 204, and a lens 206. The controller 204 is disposed on the frame 202 and can receive the display content from the platform 10 and transmit a control signal according to the display content. The lens 206 is disposed on the frame 202 and coupled to the controller 204, and can receive the control signal and display the display content accordingly. It should be noted that the electronic control glasses 30 of the present invention may not include the frame 202, that is, the controller 204 and the lens 206 can be configured or coupled in other forms. For example, the controller 204 is a plug-in accessory or a magnetic glasses accessory. In addition, the lens 206 can be combined with other wearable devices, such as virtual reality devices, augmented reality devices, sunglasses, vision correction glasses, goggles, helmets, or masks, but not limited thereto.

[0040] In order to prevent the display content displayed on the lens 206 from interfering with the environmental light passing through the lens 206, the present invention uses various elements to control the polarization state of light. Please refer to Figure 4 , Figure 4Schematic diagram of the lens 206 of the perspective display according to an embodiment of the present invention. The lens 206 includes a polarization converter 2061, and the polarization converter 2061 is disposed between a polarization element 2062 and a partial mirror element 2063. The polarization element 2062 restricts the polarization state of ambient light, the partial mirror element 2063 reflects and transmits ambient light, and the polarization converter 2061 converts the polarization state of the ambient light passing through the polarization element 2062. It should be noted that at least one of the polarization element 2062, the partial mirror element 2063, and the polarization converter 2061 is a liquid crystal panel having an active matrix and connected to the controller 2041 for displaying display content according to a control signal. In one embodiment, as Figure 4 shown, when the polarization converter 2061 displays display content according to a control signal and the ambient light L1 irradiates the polarization element 2062 of the lens 206, the ambient light L1 passes through the three elements and respectively becomes light rays L2, L3, and L4. In addition, a part of the transmitted light L3 is reflected by the partial mirror element 2063 and passes through the polarization converter 2061 and the polarization element 2062, as Figure 4 shown by a reflected light L5 and transmitted lights L6 and L7 in. In this way, the wearer can see the transmitted light L4, that is to say, the wearer can see the surrounding environment (such as roads and scenery) from the back of the electro-optic glasses 30, as Figure 2 shown.

[0041] Furthermore, the controller 204 can apply a voltage to the polarization converter 2061 by using a control signal, so that the liquid crystal in the polarization converter 2061 changes to a first arrangement. Specifically, the ambient light L1 is polarized into a transmitted light L2 having a linear polarization state (as shown by the double arrow on the transmitted light L2 in Figure 4 ). When a voltage is applied to the polarization converter 2061, as shown on the right side of Figure 4 , the first arrangement of the liquid crystal does not change the polarization state of the transmitted light L2. Specifically, the transmitted light L3 has a linear polarization state, and the reflected light L5 and the transmitted lights L6 and L7 also have a linear polarization state. In this way, passers-by can see the transmitted light L7 having a linear polarization state, that is to say, the display area of the polarization converter 2061 has a higher reflectivity for the front. It should be noted that the reflectivity of the front changes with the local optical modulation of the liquid crystal in the polarization converter 2061, so as to display the display content. When displaying the display content, the transmittance of the lens changes very little.

[0042] On the contrary, the controller 204 can indicate by a control signal not to apply a voltage to the polarization converter 2061 (as shown on the left side of Figure 4 ), so that the liquid crystal in the polarization converter 2061 changes to a second arrangement. Specifically, the ambient light L1 is polarized into a transmitted light L2 having a linear polarization state. When no voltage is applied to the polarization converter 2061, asFigure 4 As shown on the left side, the second arrangement of the liquid crystal can change the polarization state of the transmitted light L2. Specifically, the transmitted light L3 has a left-handed polarization state or a right-handed polarization state, and the reflected light L5 correspondingly has a right-handed polarization state or a left-handed polarization state. When the reflected light L5 with a right-handed polarization state or a left-handed polarization state passes through the polarization converter 2061 without applying a voltage, the transmitted light L6 has a linear polarization state orthogonal to the transmitted light L2. When the transmitted light L6 with a linear polarization state hits the polarization element 2062, the transmitted light L6 with a linear polarization state cannot pass through the polarization element 2062, that is, the reflectivity of the display area of the polarization converter 2061 to the front is relatively low. It should be noted that the polarization state changes caused by different polarized lights incident on different elements are well known in the art, so they will not be elaborated. In addition, the above polarization state control method is only one embodiment, and other embodiments of the present invention can also use other polarization state modulation methods, and those with ordinary knowledge in the art can appropriately adjust according to the system requirements. For example, the polarization element 2062 can generate left-handed or right-handed polarized light, so that when the liquid crystal of the polarization converter 2061 is vertical, the transmitted light L6 is darker, and when the liquid crystal of the polarization converter 2061 is horizontal, the transmitted light L6 is brighter.

[0043] It should be noted that Figure 4 This is only one embodiment of the present invention, and those with ordinary knowledge in the art can appropriately adjust according to the system requirements. For example, the perspective display can further include a coloring element, which is adjacent to or integrated with the partial mirror element 2063. The coloring element can adjust the transmittance and reflectivity of the lens 206, so as to allow the electro-control glasses 30 to be used as the wearer's sunglasses. For example, the perspective display can further include a diffuser to increase the viewing angle of the display content displayed on the electro-control glasses 30. The diffuser can be a surface with microstructures such as bumps, inclined planes, squares, etc. The surface can be integrated with the partial mirror element. The diffuser can also be a thin film with a micro-pattern refractive index distribution.

[0044] On the other hand, the polarization converter 2061, the polarization element 2062, and the partial mirror element 2063 can have various implementations as long as the basic functions of each element can be achieved, that is, they are all within the scope of the present invention. For example, the polarization element 2062 can be a polarizer, a wave-plate, a color filter, an antireflection film, an antifouling film, an angular attenuation filter, and various combinations of the above elements. It should be noted that the above elements are not limited to being used as the polarization element 2062 and can be added at any position on the lens. And the characteristics of the above elements can be controlled graphically or electrically according to the shape and position of the pixels. The material of the polarization element 2062 contains iodine or dye substances. The polarization converter 2061 can be an active matrix liquid crystal panel or a passive matrix liquid crystal panel. The aperture ratio of the polarization converter 2061 is higher than 50%, and the liquid crystal panel can integrate a touch sensor. In addition, the polarization converter 2061 can be implemented by a zenithal bistable alignment or a cholesteric liquid crystal to operate in a bistable state to save power. It should be noted that each pixel of the polarization converter 2061 can have an arc shape, a zigzag shape, or a polygon shape. The thickness of an opaque line of the polarization converter 2061 can be less than 15 micrometers, and the size of each pixel of the polarization converter 2061 can be greater than 100 micrometers * 100 micrometers. For example, Figure 5ASchematic diagrams of various shapes of each pixel of the polarization converter 2061. In this way, the diffraction or screen effect of the polarization converter 2061 can be reduced, and the liquid crystal panel can be configured to operate with twist nematic, electrically controlled birefringence, optically compensated bend, in-plane switching, fringe fields switching, vertical alignment, ferroelectric liquid crystal, cholesterol liquid crystal, dye-doped liquid crystal or polymer dispersed liquid crystal. Further, the partial reflector element 2063 can be metal-coated or dielectric-coated. It should also be noted that the principles of the polarization converter 2061, the polarization element 2062 and the partial reflector element 2063 are well known in the art and will not be repeated here.

[0045] Furthermore, the polarization element 2062 and the partial mirror element 2063 can also be implemented using various types of liquid crystals. In one embodiment, the partial mirror element 2063 can include a microstructure or a micro refractive index distribution that diffuses ambient light. In another embodiment, a diffuser is directly connected to the partial mirror element. In one embodiment, the polarization element 2062 is a first liquid crystal panel having a dichroic dye, and in the lens 40, the partial mirror element 2063 is a second liquid crystal panel filled with a cholesteric liquid crystal layer. Specifically, the extinction ratio of the first liquid crystal panel having a dichroic dye can be electrically controllable to control the visibility and visual brightness of the displayed content. By locally controlling the extinction ratio, the polarization element 2062 can also provide a display function. In another embodiment, the partial mirror element 2063 is a first liquid crystal panel having a cholesteric liquid crystal. The reflectivity of the cholesteric liquid crystal can be electrically controllable to control the visibility and visual brightness of the displayed content. By locally controlling the reflectivity, the partial mirror element 2063 can also provide a display function. On the other hand, the liquid crystals in the cholesteric liquid crystal layer can be arranged in a geometric distribution to provide additional phase modulation for the wearer's line of sight. In one embodiment, when the polarization converter 2061, the polarization element 2062, and the partial mirror element 2063 are implemented using various types of liquid crystals, any one of the polarization converter 2061, the polarization element 2062, and the partial mirror element 2063 can divide the displayed content into a display area and a non-display area by means of the segmented lens 20. For example, Figure 5B Schematic diagrams of various patterns of the display area and the non-display area of the embodiment of the present invention.

[0046] Furthermore, as Figures 6A - 6D shown. Figures 6A - 6D Schematic diagram of the dispersion characteristics of the three elements of the see-through display 20 of the embodiment of the present invention. As Figures 6A - 6D shown, by separately adjusting the dispersion characteristics of the three elements of the see-through display 20 with respect to the wavelength, the present invention can achieve a see-through display that can display colors. Specifically, Figure 6A represents a reflectivity and a transmittance of the wavelength spectrum of the partial mirror element 2063; Figure 6B represents various reflectivities of the lens 206 at different operating voltages; Figure 6C represents the reflectivity of the lens 206 with respect to the wavelength spectrum at different operating voltages; Figure 6D represents a transmittance spectrum of the lens 206 at different operating voltages. It should be noted that adjusting the dispersion characteristics according to the wavelength is well known in the art and will not be elaborated here.

[0047] In another embodiment, each display gray level of the see-through display 20 corresponds to a specific color (such as Figure 6C shown). When the see-through display 20 compiles and displays the display gray levels, it is necessary to convert the color digital display content (RGB) to be displayed into a digital drive voltage signal compatible with the see-through display 20. This conversion requires a gamma lookup table to describe the light intensity and color corresponding to each display gray level. It should be noted that the conversion of the digital drive voltage signal can be performed by system firmware, system software, drive hardware, or a combination of the above.

[0048] In another embodiment, the liquid crystal panel may include a plurality of pixels. Each pixel among the plurality of pixels includes a plurality of sub-pixels, and a display color of each pixel is mixed by the colors of the sub-pixels operating at different display gray levels. In a general RGB color mode, each sub-pixel controls the gray levels of red, green, or blue. The drive signals of the RGB sub-pixels directly correspond to the general RGB data format. On the other hand, in the see-through display 20, a specific RGB color to be displayed is mixed by a plurality of sub-pixels operating at different display gray levels. All sub-pixels share the same gamma lookup table, where each gray level corresponds to a set of light intensity and RGB color. As Figure 7 shown, the original color to be displayed is mixed by the RGB colors operating at various display gray levels. In other words, the original color needs to be converted into three or more identical pixels by mixing multiple different RGB combinations. With such a characteristic, the formation of the sub-pixels of the see-through display 20 can be distributed in space or time. The number and configuration of the sub-pixels of the mixed pixels can be adjusted by a signal from the controller 204. In addition, the resolution can also be increased by the wobulation technique.

[0049] In another embodiment, as Figure 6D shown. When the see-through display 20 operates at various display gray levels, its transmittance and spectrum remain unchanged. However, the transmittance and reflectance of the obliquely incident light at different interfaces will change according to the polarization state of the incident light. Therefore, in terms of transmittance, the content displayed on the front reflective surface will be visible at a large viewing angle. In order to reduce the light leakage of the displayed content at large angles, compensation elements can be added in the see-through display 20, such as adding a retardation film or coating to reduce the polarization difference of the Fresnel reflection at the interface; or using a segmented retardation film with a locally arranged LC, but not limited to this. In this way, the light in the viewing angle direction maintains the same polarization state.

[0050] In another embodiment, the lens may further include an optical compensation element. The optical compensation element reduces the difference in the light transmittance of the diagonal transmissive lens when switching between different display gray levels. The optical compensation element can be a thin film, a coating, or a liquid crystal panel.

[0051] In another embodiment, the see-through display 20 or the electronically controlled glasses 30 may further include a light source 2064 for providing sufficient light. Please refer to Figures 8A - 8E , Figures 8A - 8E , which is a schematic diagram of the electronically controlled glasses 30 according to an embodiment of the present invention. Specifically, for different positions of the light source 2064, the lens of the present invention is further configured with an additional polarization element or a waveguide. For example, as Figures 8A - 8B shown, the light source 2064 is disposed above the polarization element 2062 to provide sufficient light to the electronically controlled glasses 30. It should be noted that Figure 8B the lens 206 in Figures 8C - 8E further includes a waveguide 2065 to guide the light to the polarization element 2062. As Figures 8C - 8E shown, the light source 2064 is disposed on the side of the lens 206 to provide sufficient light to the electronically controlled glasses 30. It should be noted that Figures 8C - 8E the lens 206 in Figures 8A - 8E includes a waveguide 2065 and an additional polarization element 2066 to guide the light into different positions of the lens. In addition, Figures 8A - 8E is only an embodiment of the present invention, and those of ordinary skill in the art can make appropriate adjustments according to the requirements of the system. In another embodiment, the see-through display 20 may further include another transparent display with an active light source.

[0052] Finally, the display of the display content on the see-through display 20 or the electronically controlled glasses 30 can be summarized into a process 50, as Figure 9 shown. The process 50 includes the following steps:

[0053] Step S500: The designer creates the display content.

[0054] Step S502: The platform 10 provides the display content to the see-through display 20 or the electronically controlled glasses 30.

[0055] Step S504: The display content is displayed on the see-through display 20 or the electronically controlled glasses 30.

[0056] In step S500, the designer, such as a company, a store or an individual, creates the display content to be provided to the platform 10. The form of the display content includes images, charts or videos. The display content can be an advertisement of a product, an emoji, a digital art work (such as an NFT) or a game item.

[0057] In step S502, the platform 10 provides the display content to the electronically controlled glasses 30 of the end user. The platform 10 may include hardware that executes software to provide the display content to the electronically controlled glasses 30. For example, the hardware can be a mobile phone, a computer, a system-on-chip, a vehicle-mounted system or a broadcast system. The software can be a social media, an application or a game program.

[0058] In step S504, the controller 204 receives the display content and controls the lens 206 to display the display content. In this way, passers-by can see the display content displayed on the front of the electro-control glasses 30.

[0059] Furthermore, please refer to Figure 10 . Figure 10 It is a schematic diagram of the user interaction system 9 according to the first embodiment of the present invention. As Figure 9 shown, the user interaction system 9 can serve as an interaction platform for the user and the electro-control glasses worn by multiple other users. It should be noted that the detailed description and derivative changes of the lenses of the electro-control glasses are as described above and will not be elaborated here.

[0060] In summary, the electro-control glasses of the present invention can use a lens provided with a liquid crystal panel between a polarization element and a partial mirror element to further control the transmitted light and reflected light after the ambient light irradiates the lens. In this way, passers-by can see the display content displayed on the front of the electro-control glasses without affecting the user's line of sight.

[0061] The above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope covered by the present invention.

Claims

1. A transparent display, comprising: A frame; A controller disposed on the frame for transmitting a control signal according to a display content; and A lens disposed on the frame, comprising: A polarization element for restricting a polarization state of an ambient light; A partially reflective mirror element for reflecting and transmitting the ambient light; and A polarization converter disposed between the polarization element and the partially reflective mirror element for converting the polarization state of the ambient light passing through the polarization element; Among them, At least one of the polarization element, the partially reflective mirror element, and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used for displaying the display content according to the control signal.

2. The transparent display according to claim 1, wherein the transparent display is in the form of a window, a door panel, a windshield, a display cabinet, a compartment, a wall, glasses, or a mask.

3. The transparent display according to claim 1, wherein the liquid crystal panel comprises a plurality of pixels, an aperture ratio of the liquid crystal panel is higher than 50%, and a size of each pixel of the liquid crystal panel is greater than 100 microns * 100 microns.

4. The transparent display according to claim 3, wherein shapes of the plurality of pixels of the liquid crystal panel are arc-shaped, serrated, or polygonal.

5. The transparent display according to claim 3, wherein each pixel of the plurality of pixels comprises a plurality of sub-pixels, and a display color of each pixel is formed by mixing colors of the plurality of sub-pixels.

6. The transparent display according to claim 5, wherein each sub-pixel of the plurality of sub-pixels is composed of a patterned polarization element or a partially reflective mirror element, and the plurality of sub-pixels are distributed in space or time.

7. The transparent display according to claim 1, wherein a thickness of a light-blocking line of the liquid crystal panel is less than 15 microns.

8. The transparent display according to claim 1, wherein an operation mode of the liquid crystal panel comprises twisted nematic, electrically controlled birefringence, optically compensated bend, in-plane switching, fringe field switching, vertical alignment, ferroelectric liquid crystal, cholesteric liquid crystal (cholesteric type liquid crystal), dye-doped liquid crystal, or polymer dispersed liquid crystal.

9. The transparent display according to claim 1, wherein the polarization element comprises at least one of a polarizer, a wave plate, a color filter, an anti-reflection film, an anti-fouling film, and an angular attenuation filter.

10. The transparent display according to claim 1, wherein the partially reflective mirror element is a second liquid crystal panel filled with a cholesteric liquid crystal layer.

11. The transparent display according to claim 1, wherein the partially reflective mirror element comprises microstructures or micro-refractive index distributions for diffusing the ambient light.

12. The transparent display according to claim 1, further comprising: A coloring element adjacent to or integrated with the partially reflective mirror element.

13. The transparent display according to claim 1, wherein the liquid crystal panel further comprises a touch sensing circuit.

14. The transparent display according to claim 1, wherein the lens further comprises a light source for providing sufficient light.

15. The perspective display according to claim 1, wherein the lens further includes a transparent display having an active light source.

16. An electronically controlled glasses, comprising: A frame; A controller disposed in the frame for transmitting a control signal according to a display content; and A lens disposed in the frame, comprising: A polarization element for restricting a polarization state of an ambient light; A partially reflecting mirror element for reflecting and transmitting the ambient light; and A polarization converter disposed between the polarization element and the partially reflecting mirror element for converting the polarization state of the ambient light passing through the polarization element; Among them, At least one of the polarization element, the partially reflecting mirror element and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used for displaying the display content according to the control signal.

17. A system, comprising: A platform for providing a user interface and generating display content according to a user's control; and An electronically controlled glasses coupled to the platform, comprising: A frame; A controller disposed in the frame for receiving the display content and transmitting a control signal according to the display content; and A lens disposed in the frame, comprising: A polarization element for restricting a polarization state of an ambient light; A partially reflecting mirror element for reflecting and transmitting the ambient light; and A liquid crystal panel disposed between the polarization element and the partially reflecting mirror element for converting the polarization state of the ambient light passing through the polarization element; Among them, At least one of the polarization element, the partially reflecting mirror element and the polarization converter is a liquid crystal panel with an active matrix connected to the controller, and the liquid crystal panel is used for displaying the display content according to the control signal.

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