Glass assembly, projection device, projection system and vehicle

Abstract

The utility model provides a glass assembly, a projection device, a projection system and a vehicle. The glass assembly includes: a glass body; the orthographic projection display layer is arranged on the surface of the glass body and is used for displaying an image to one side of the glass assembly; the rear projection display layer is arranged on the surface of the glass body and is used for displaying an image to the other side opposite to the glass assembly; and a light-blocking layer including a first light-blocking region and a second light-blocking region, each light-blocking region being configured to be switchable between a non-dark state and a dark state, the light-blocking layer being disposed on an opposite side of the orthographic projection display layer to display an image, the first light-blocking region corresponding to at least a portion of the orthographic projection display layer, the second light-blocking region corresponding to at least a portion of the orthographic projection display layer, and the second light-blocking region corresponding to at least a portion of the orthographic projection display layer. The second light cutoff region corresponds to at least a portion of the rear projection display layer. According to the invention, each light truncation area can be independently controlled according to different application occasions and user requirements, images can be displayed towards different sides in different areas in combination with the projection device, and the use atmosphere and experience comfort of a user are improved.

Description

Technical Field

[0001] The present disclosure generally relates to the field of glass manufacturing technology, and more particularly to a glass component, a projection device for projecting an image onto the glass component, a projection system using the glass component and / or the projection device, and a vehicle including the glass component or the projection device or the projection system. Background Art

[0002] With the rapid development of the automotive industry, vehicle window glass has gained widespread attention from vehicle manufacturers and consumer preference as a superior medium for conveying information to and / or outside the vehicle. Compared to using other in-vehicle display locations (such as displays behind vehicle seats), vehicle window glass offers greater convenience, a larger usable area, greater durability, and a better user experience. For example, projection film can be applied to the rear windshield of a taxi to display advertising content such as images or videos to the vehicle exterior.

[0003] Although projecting images onto the outside of the vehicle through the window glass can meet the needs of some consumers, vehicle manufacturers and consumers expect the projection display function on the window glass to provide a more diversified experience, and hope to adjust or improve the occasions and image quality of the projected images according to different needs. Utility Model Content

[0004] The purpose of the present disclosure is to solve the above-mentioned problems in the prior art and to propose a glass component that can provide image display functions to the exterior and interior of a vehicle separately or simultaneously according to different application scenarios and user needs, thereby obtaining a more attractive product that combines entertainment, comfort and safety.

[0005] To this end, according to one aspect of the present disclosure, a glass assembly is provided, comprising: a glass body; a front projection display layer, the front projection display layer being arranged on the surface of the glass body and configured to display an image to one side of the glass assembly; a rear projection display layer being arranged on the surface of the glass body and configured to display an image to the other opposite side of the glass assembly; and a light-cutting layer, the light-cutting layer comprising a first light-cutting region and a second light-cutting region, each light-cutting region being configured to be switchable between a non-dark state and a dark state, wherein the light-cutting layer is arranged on the opposite side of the front projection display layer from the displayed image, the first light-cutting region corresponding to at least a portion of the front projection display layer, and the second light-cutting region corresponding to at least a portion of the rear projection display layer.

[0006] According to the above technical concept, the embodiments of the present disclosure may further include any one or more of the following optional forms.

[0007] In certain optional forms, the glass component includes one or more of the forward projection display layers and / or one or more of the rear projection display layers, and / or the first light-cutting area includes one or more first light-cutting areas corresponding to at least a portion of a forward projection display layer or at least a portion of each of the multiple forward projection display layers, and the second light-cutting area includes one or more second light-cutting areas corresponding to at least a portion of a rear projection display layer or at least a portion of each of the multiple rear projection display layers.

[0008] In some optional forms, the light-intercepting layer is arranged on the same side or the opposite side of the display image of the rear projection display layer.

[0009] In certain optional forms, the front projection display layer and the rear projection display layer are respectively arranged on both sides of the light-truncation layer, and in the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer overlap or staggered with each other; optionally, in the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer completely overlap or partially overlap; or optionally, in the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer are staggered and adjacent to each other.

[0010] In certain optional forms, the forward projection display layer and the rear projection display layer are arranged on the same side of the light-cutting layer, and in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in the same layer or different layers; optionally, in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in the same layer and are adjacent to each other; or optionally, in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in different layers and completely overlap or partially overlap.

[0011] In some optional forms, the first light-cutting area corresponds to at least a portion of the front projection display layer and at least a portion of the rear projection display layer, and / or the second light-cutting area corresponds to at least a portion of the rear projection display layer and at least a portion of the front projection display layer; optionally, the first light-cutting area and the second light-cutting area jointly cover the entire front projection display layer along the surface direction of the glass body, and the first light-cutting area and the second light-cutting area jointly cover the entire rear projection display layer along the surface direction of the glass body; or optionally, the first light-cutting area covers part of the front projection display layer or covers the entire front projection display layer and covers part of the rear projection display layer along the surface direction of the glass body, and / or the second light-cutting area covers part of the rear projection display layer or covers the entire rear projection display layer and covers part of the front projection display layer along the surface direction of the glass body. display layer; or optionally, the first light-cutting area covers part of the front projection display layer or covers the entire front projection display layer along the surface direction of the glass body, and covers part of the rear projection display layer, and the first light-cutting area and the second light-cutting area jointly cover the entire rear projection display layer along the surface direction of the glass body, or the second light-cutting area covers part of the rear projection display layer along the surface direction of the glass body without covering the front projection display layer; or optionally, the second light-cutting area covers part of the rear projection display layer or covers the entire rear projection display layer and covers part of the front projection display layer along the surface direction of the glass body, and the first light-cutting area and the second light-cutting area jointly cover the entire front projection display layer along the surface direction of the glass body, or the first light-cutting area covers part of the front projection display layer along the surface direction of the glass body without covering the rear projection display layer.

[0012] In some optional forms, the first light-intercepting region covers the entire front projection display layer along the surface direction of the glass body, and the second light-intercepting region covers the entire rear projection display layer along the surface direction of the glass body.

[0013] In some optional forms, the interval between the multiple first light-cutting areas is less than or equal to 0.1 mm, and / or the interval between the multiple second light-cutting areas is less than or equal to 0.1 mm, and / or the interval between the first light-cutting area and the second light-cutting area adjacent to each other is less than or equal to 0.1 mm.

[0014] In some optional forms, the light-cutting layer is configured as a suspended particle film layer and / or an electrochromic film layer and / or a dye-doped polymer dispersed liquid crystal film layer and / or a guest-host liquid crystal film layer and / or an electrophoretic film layer.

[0015] In some optional forms, when the first light-cutting area and / or the second light-cutting area is in a dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is less than or equal to 10%, less than or equal to 5%, less than or equal to 4%, less than or equal to 3%, less than or equal to 2%, less than or equal to 1%, or is the lowest transmittance of the first light-cutting area and / or the second light-cutting area; and / or when the first light-cutting area and / or the second light-cutting area is in a non-dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is greater than or equal to 20%, greater than or equal to 30%. %, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or the highest transmittance of the first light-cutting area and / or the second light-cutting area; optionally, when the first light-cutting area and / or the second light-cutting area are in a non-dark state, in the cross-sectional direction of the glass component, the visible light transmittance of the glass component corresponding to the first light-cutting area and / or the second light-cutting area is greater than or equal to 20%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%.

[0016] In some optional forms, the visible light transmittance of the first light-cutting area and / or the second light-cutting area when in a non-dark state is greater than the visible light transmittance of the first light-cutting area and / or the second light-cutting area when in a dark state, and the difference between the two is greater than or equal to 5%, greater than or equal to 10%, greater than or equal to 15%, greater than or equal to 20%, greater than or equal to 25%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%.

[0017] In certain optional forms, the glass assembly includes a picture frame structure arranged around the front projection display layer and / or the rear projection display layer and / or the light intercepting layer.

[0018] In some optional forms, the glass component is a vehicle window glass, including a front windshield, a rear windshield, a sunroof, a door glass or a corner window glass.

[0019] In certain optional forms, when the first light-cutting area and / or the second light-cutting area is in a non-dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or is the highest transmittance of the first light-cutting area and / or the second light-cutting area; optionally, when the first light-cutting area and / or the second light-cutting area is in a non-dark state, in the cross-sectional direction of the glass component, the visible light transmittance of the glass component corresponding to the first light-cutting area and / or the second light-cutting area is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%.

[0020] In some optional forms, the glass body is a first glass body, and the glass assembly also includes a second glass body. The forward projection display layer and / or the rear projection display layer are arranged on the surface of the first glass body away from the second glass body, or the forward projection display layer and / or the rear projection display layer are arranged on the surface of the second glass body away from the first glass body, or the forward projection display layer and / or the rear projection display layer are sandwiched between the first glass body and the second glass body, and the forward projection display layer is configured to display images toward the interior of the vehicle, and the rear projection display layer is configured to display images toward the outside of the vehicle.

[0021] In certain optional forms, the glass assembly includes a control unit; optionally, the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of a projection device and / or an electronic control unit of a light intercepting layer.

[0022] In certain optional forms, the glass assembly includes a human-machine interaction unit, and the control unit includes at least an electronic control unit of the human-machine interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of a projection device and / or an electronic control unit of a light-truncation layer.

[0023] In some optional forms, the human-computer interaction unit includes a contact input unit or a contactless input unit.

[0024] In certain optional forms, the contactless input unit is configured to be adjacent to the edge of the glass body and arranged on the surface of the glass body and / or near the surface of the glass body; optionally, the contactless input unit includes a proximity sensor and / or a distance sensor and / or an image sensor.

[0025] In some optional forms, the human-computer interaction unit is configured as a time-of-flight sensor and / or an ultrasonic sensor and / or an infrared sensor, and / or the human-computer interaction unit is configured as a camera with an image sensor and / or a projection device with a time-of-flight sensor.

[0026] According to another aspect of the present disclosure, a projection device is provided, wherein the projection device is configured to project an image onto the above-mentioned glass component; optionally, the projection device is the projection device with a time-of-flight sensor.

[0027] In certain optional forms, the projection device includes a control unit; optionally, the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light intercepting layer.

[0028] In some optional forms, the projection device includes a human-computer interaction unit, and the control unit includes at least an electronic control unit of the human-computer interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer.

[0029] In some optional forms, the human-computer interaction unit includes a contact input unit or a contactless input unit.

[0030] In certain optional forms, relative to the first light-cutting area and the second light-cutting area of ​​the light-cutting layer of the glass component, the projection device is configured to project an image onto at least a portion of the front projection display layer corresponding to the first light-cutting area and / or project an image onto at least a portion of the rear projection display layer corresponding to the second light-cutting area.

[0031] In some optional forms, the projection device is configured as a single projector, or is configured as a plurality of projectors corresponding to the front projection display layer and the rear projection display layer respectively; optionally, the projection device is configured as a movable projector.

[0032] In certain optional forms, the glass component is a vehicle window glass, and the projection device is configured as a short-throw projector arranged adjacent to the vehicle window glass.

[0033] According to another aspect of the present disclosure, a projection system is provided, comprising the above-mentioned glass assembly and a projection device, wherein the projection device corresponds to the front projection display layer and the rear projection display layer of the glass assembly; optionally, the projection system is a vehicle-mounted projection system; optionally, the projection device is the above-mentioned projection device.

[0034] In certain optional forms, the projection system includes a control unit; optionally, the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light intercepting layer.

[0035] In certain optional forms, the projection system includes a human-computer interaction unit, and the control unit includes at least an electronic control unit of the human-computer interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light-truncation layer.

[0036] In some optional forms, the human-computer interaction unit includes a contact input unit or a contactless input unit.

[0037] According to another aspect of the present disclosure, a vehicle is provided, comprising the aforementioned glass assembly, or the aforementioned projection device, or the aforementioned projection system; optionally, the vehicle comprises a vehicle.

[0038] The glass assembly disclosed herein provides image display functions on both sides of the glass body through a front projection display layer and a rear projection display layer. In combination with a light-cutting layer having different light-cutting regions corresponding to at least parts of the front projection display layer and the rear projection display layer, each light-cutting region can be individually controlled according to different application scenarios and user needs. In combination with a projection device, images can be displayed in different regions facing different sides, thereby improving the user experience and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Other features and advantages of the present disclosure will be better understood through the following detailed description of the optional embodiments in conjunction with the accompanying drawings, in which:

[0040] Figure 1 is a schematic cross-sectional view of a glass assembly according to an embodiment of the present disclosure, wherein a front projection display layer and a rear projection display layer are arranged between a first glass body and a second glass body and on either side of a light-intercepting layer. In the cross-sectional direction of the illustrated glass assembly, the front projection display layer and the rear projection display layer are staggered and adjacent to each other;

[0041] Figure 2 is a schematic cross-sectional view of a glass assembly according to another embodiment of the present disclosure, wherein a front projection display layer and a rear projection display layer are arranged between a first glass body and a second glass body and on the same side of a light-cutting layer. In the cross-sectional direction of the illustrated glass assembly, the front projection display layer and the rear projection display layer are arranged on the same layer and adjacent to each other;

[0042] Figure 3is a schematic cross-sectional view of a glass assembly according to yet another embodiment of the present disclosure, wherein a front projection display layer and a rear projection display layer are arranged between a first glass body and a second glass body and on both sides of a light-intercepting layer. In the cross-sectional direction of the illustrated glass assembly, the front projection display layer and the rear projection display layer completely overlap each other;

[0043] Figure 4 is a schematic cross-sectional view of a glass assembly according to yet another embodiment of the present disclosure, wherein a front projection display layer and a rear projection display layer are arranged between a first glass body and a second glass body and on both sides of a light-intercepting layer. In the cross-sectional direction of the illustrated glass assembly, the front projection display layer and the rear projection display layer overlap and partially overlap each other;

[0044] Figure 5 is a schematic cross-sectional view of a glass assembly according to yet another embodiment of the present disclosure, wherein a front projection display layer and a rear projection display layer are arranged between a first glass body and a second glass body and on the same side of a light-cutting layer. In the cross-sectional direction of the illustrated glass assembly, the front projection display layer and the rear projection display layer completely overlap each other;

[0045] Figure 6 is a schematic diagram of a projection system according to an embodiment of the present disclosure, illustrating a projection device configured as a movable projector;

[0046] Figure 7 is a side view of the projection device and the glass assembly, showing the projection device projecting an image onto the orthographic display layer;

[0047] Figure 8 and Figure 7 Similarly, the projection device is shown projecting an image onto the rear projection display layer;

[0048] Figure 9 and Figure 1 Similarly, a situation in which an image is projected onto the forward projection display layer is shown, wherein the first light interception region substantially covering the entire forward projection display layer along the surface direction of the glass body is in a dark state and the forward projection display layer displays an image;

[0049] Figure 10 and Figure 1 Similarly, a situation in which an image is projected onto the rear projection display layer is shown, wherein the second light interception region substantially covering the entire rear projection display layer along the surface direction of the glass body is in a non-dark state and the rear projection display layer displays an image;

[0050] Figure 11 and Figure 1Similarly, a situation is shown where images are projected onto the front projection display layer and the rear projection display layer at the same time, wherein the first light cutoff area roughly covering the entire front projection display layer along the surface direction of the glass body is in a dark state, and the second light cutoff area roughly covering the entire rear projection display layer along the surface direction of the glass body is in a non-dark state, and the front projection display layer and the rear projection display layer display images at the same time. DETAILED DESCRIPTION

[0051] The following describes the implementation and use of the embodiments in detail. However, it should be understood that the specific embodiments discussed are merely illustrative of specific ways to implement and use the present disclosure and are not intended to limit the scope of the present disclosure. When describing the structural positions of various components, such as up, down, top, and bottom, directional expressions are not absolute but relative. These directional expressions are appropriate when the components are arranged as shown in the figures, but if the positions of the components in the figures are changed, these directional expressions will also change accordingly.

[0052] Herein, the expression "includes" or its synonymous similar expressions "having" and the like are open-ended and do not exclude additional unrecited elements, steps or components.

[0053] In this document, the terms "first", "second", etc. are not used to limit the order of precedence and the number of components, unless otherwise specified.

[0054] As used herein, unless otherwise specifically defined, terms such as "attachment" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of these terms in this document based on the specific circumstances.

[0055] As used herein, "plurality" means two or more than two, unless otherwise specifically defined.

[0056] As used herein, the "surface" of a glass body or laminated structure is defined by the plane containing the length and width of the glass body or laminated structure, and the "edge" is defined by the plane containing the length or width and thickness of the glass body or laminated structure. A "cross-section" of a glass assembly is defined as a section taken along the thickness of the glass assembly.

[0057] Herein, the glass assembly is described as being applied to vehicle window glass, but this does not exclude that the glass assembly may be applied to environments such as doors, windows, curtain walls, aircraft glass, or ship glass. When the glass assembly is described as being used for vehicle window glass, "outside" and "inside" are directions relative to the vehicle body, "outside" refers to the direction away from the vehicle body, "inside" refers to the direction facing the vehicle body, and "vertical direction" refers to the direction approximately perpendicular to the ground. It should be understood that the vehicle window glass according to the embodiments of the present disclosure includes but is not limited to the front windshield, rear windshield, door glass (including front door glass and rear door glass), or corner window glass, and can provide different image display effects based on different needs.

[0058] In the various embodiments described, unless otherwise specified, the glass thickness is that commonly used in the art. The thickness of each laminated structure on the glass is within a conventional range and is not limited to that shown in the figures. Furthermore, although the figures illustrate flat glass, the glass assemblies disclosed herein may also be curved glass. In various embodiments, the glass is described as a single body. However, in certain cases not described, the surface of the glass may also be coated with special coatings to enhance other properties, such as thermal insulation and / or comfort.

[0059] Manufacturers and most vehicle users hope to achieve a variety of image display effects using vehicle window glass. For example, they hope to display images inside the vehicle while maintaining privacy and minimizing the impact on people outside the vehicle. They also hope to display images outside the vehicle or simultaneously display images inside the vehicle and outside the vehicle. For example, they hope to display welcome messages or warnings to people or vehicles outside the vehicle. This puts forward more diverse design requirements for vehicle window glass. Furthermore, it has been recognized that when projecting images into the vehicle interior through vehicle window glass, drivers and passengers tend to be interested in images displayed in certain areas. For example, drivers and passengers prefer display areas with smaller head rotation angles, such as areas on the door glass that are relatively closer to the front of the vehicle. In the case of projecting images outside the vehicle, it is also hoped that the displayed images will not adversely affect the driver, for example, the area on the door glass that displays images to the outside of the vehicle is relatively closer to the rear of the vehicle.

[0060] In this context, when images are displayed inside a vehicle, "privacy" refers to the privacy of those inside the vehicle. Specifically, the window glass should prevent those outside the vehicle from clearly seeing the displayed image content, thereby achieving privacy protection. The displayed image is not limited and can, for example, be static text, numbers, symbols, or images, or dynamic video.

[0061] According to the concept of the present disclosure, a glass assembly is provided, which includes: a glass body; a front projection display layer, which is arranged on the surface of the glass body and is used to display an image to one side of the glass assembly; a rear projection display layer, which is arranged on the surface of the glass body and is used to display an image to the other opposite side of the glass assembly; and a light-cutting layer, which includes a first light-cutting area and a second light-cutting area, each light-cutting area being configured to be switchable between a non-dark state and a dark state, wherein the light-cutting layer is arranged on the opposite side of the front projection display layer from the displayed image, the first light-cutting area corresponds to at least a portion of the front projection display layer, and the second light-cutting area corresponds to at least a portion of the rear projection display layer.

[0062] Depending on different needs, the glass assembly of the present disclosure projects into the vehicle interior via a front projection display layer and can optionally or simultaneously project outward via a rear projection display layer. "Front projection" refers to light emitted by a projection device being projected onto the glass assembly to form an image, which is then reflected to the observer's eyes. This is also known as reflective projection. In contrast, "rear projection" refers to light emitted by a projection device being projected from one side of the glass assembly, which then passes through the glass assembly into the eyes of an observer on the other side. This is also known as transmissive projection. Furthermore, the glass assembly of the present disclosure provides a light-cutting layer comprising light-cutting regions corresponding to at least portions of the front projection display layer and the rear projection display layer, respectively. The light-cutting layer is disposed on the opposite side of the displayed image of the front projection display layer. Depending on different needs, the light-cutting layer can be disposed on the same side or the opposite side of the displayed image of the rear projection display layer. Here, "light-cutting" means that the light-cutting layer can cut off light when in a dark state, preventing light from being transmitted through the light-cutting layer. The light-cutting layer can also be referred to as a light valve. Here, "dark state" means that when the light cutoff area is switched to this state, the visible light transmittance of the light cutoff area is less than or equal to 10%, preferably less than or equal to 5%, for example, less than or equal to 4%, less than or equal to 3%, less than or equal to 2%, less than or equal to 1%, etc., or it is the lowest transmittance of the light cutoff area (for example, 0.5%). "Non-dark state" means that when the light cutoff area is switched to this state, the visible light transmittance is greater than the visible light transmittance in the dark state. For example, when the light cutoff area is in the non-dark state, the visible light transmittance of the light cutoff area may be greater than or equal to 20%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or it is the highest transmittance of the light cutoff area. Optionally, when the light-cutting region is in a non-dark state, in a cross-sectional direction of the glass component, the visible light transmittance of the glass component corresponding to the light-cutting region is greater than or equal to 20%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%. Advantageously, the visible light transmittance of the light-cutting region in the non-dark state is greater than the visible light transmittance of the light-cutting region in the dark state, and the difference between the visible light transmittance and the visible light transmittance is greater than or equal to 5%, greater than or equal to 10%, greater than or equal to 15%, greater than or equal to 20%, greater than or equal to 25%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%.

[0063] According to the present disclosure, the non-dark state of the light-cutting region can include one or more stable states corresponding to different visible light transmittances, such as two, three, four, five, or more. This allows for free and infinite adjustment of different transmittances, depending on different needs, without being limited to the highest transmittance of the selected light-cutting region in different forms. Thus, because the light-cutting layer is arranged on the opposite side of the displayed image of the forward projection display layer, by controlling the different states of the light-cutting region of the light-cutting layer, the light-cutting region in the dark state can cut off light from the opposite side of the displayed image of the forward projection display layer, thereby improving the contrast of the image and enhancing the clarity of the image displayed on the forward projection display layer. When applied to, for example, vehicle door glass and displaying images to the interior of the vehicle, the glass assembly of the present disclosure not only allows people inside the vehicle to observe an enhanced projected image, but also protects the privacy of the displayed image content and reduces interference with people outside the vehicle. For example, under bright light conditions (e.g., daytime), for the forward projection display layer that needs to display an image, the first light-cutoff area can be switched to a dark state to avoid interference from ambient light outside the vehicle, thereby providing an image with higher contrast. Under dim light conditions (e.g., at night or on rainy days), the first light-cutoff area switched to a dark state provides a high-contrast image while also protecting the privacy of the displayed image content and reducing interference with people outside the vehicle. In addition, the second light-cutoff area can also be switched to a dark state as needed to provide privacy protection, for example, inside the vehicle. For example, the second light-cutoff area can be switched to a dark state as needed at the same time as the first light-cutoff area is switched to a dark state. On the contrary, when the first light-cutting area and / or the second light-cutting area are switched to a non-dark state as needed, the visible light transmittance of the first light-cutting area and / or the second light-cutting area may be greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or the highest transmittance of the first light-cutting area and / or the second light-cutting area, so that the area where the front projection display layer or the rear projection display layer is located can meet the different perspective requirements of occupants inside the vehicle for the outside of the vehicle or the requirements of occupants outside the vehicle to observe the image displayed in the area where the rear projection display layer is located.

[0064] Preferably, the haze of the selected front projection display layer is less than 10%, preferably less than 5%, the diffuse reflectance of visible light is greater than or equal to 10%, and the transmittance of visible light can be greater than or equal to 70%. Preferably, the haze of the selected rear projection display layer is less than 10%, preferably less than 5%, and the transmittance of visible light can be greater than or equal to 70%. For the front projection display layer or rear projection display layer using the holographic projection mode, the transmittance of visible light can also advantageously be greater than or equal to 70%. Preferably, the selected front projection display layer and rear projection display layer have similar visible light transmittance and haze.

[0065] As used herein, haze is the ratio of the scattered light flux that deviates from the normal direction of the incident light passing through the sample to the transmitted light flux, expressed in %. Usually, only the scattered light flux that deviates from the direction of the incident light by more than 2.5 degrees is used to calculate the haze, and is measured using a haze meter according to standards GB2410 and ASTM D1003. The transmittance of visible light is the light transmittance in the visible spectrum, expressed in %, and measured according to standard ISO 9050:2003 (illuminant D65; 2° observer). The diffuse reflectance refers to the ratio of the total amount of diffusely reflected light to the total amount of incident light, expressed in %, and measured using the SCE (Specular Component Exclude) measurement mode.

[0066] Advantageously, the light-cutting layer has a high contrast ratio between its maximum and minimum transmittances. Here, "contrast ratio" refers to a measurement of the brightness levels between the brightest white and darkest black in the light and dark areas of an image. A larger difference represents a greater contrast, while a smaller difference represents a smaller contrast. Alternatively, the light-cutting layer can be a film with a contrast ratio greater than or equal to 10:1. For example, the light-cutting layer can be configured as a suspended particle optic (SPD) film layer, an electrochromic (EC) film layer, a dye-doped polymer dispersed liquid crystal (DDPDLC) film layer, a guest-host liquid crystal (GHLC) film layer, and / or an electrophoretic film layer.

[0067] According to the present disclosure, each light-intercepting region in the light-intercepting layer is particularly advantageously configured to be switchable between a non-dark state and a dark state. This is because users may desire projection in specific or localized areas of the glass assembly. For example, when the glass assembly is applied to vehicle door glass, ergonomic research indicates that drivers or passengers may more frequently desire projection or tend to project more important information in areas of the door glass that are ergonomically appropriate (e.g., with a smaller head rotation angle) (e.g., an area on the door glass relatively closer to the front of the vehicle). By providing a regionalized light-intercepting layer combined with regionalized projection, the first light-intercepting region switched to a dark state can provide an enhanced contrast image display effect and / or image content privacy effect in the area where the orthographic projection display layer is located, while the second light-intercepting region switched to a dark state can provide a privacy effect within the vehicle interior. The non-dark state first light-cutting area and the second light-cutting area can meet the driver's or passenger's perspective needs to the outside of the vehicle, ensure the driver and passengers have a good observation field of view to the outside of the vehicle, improve driving safety and driving experience, and the non-dark state second light-cutting area can ensure that the area where the rear projection display layer is located provides a display image effect to the outside of the vehicle.

[0068] It should be understood that the glass assemblies of the present disclosure encompass single-layer glass bodies and laminated glass having multiple layers of glass bodies. Figure 1A glass assembly 100 in the form of laminated glass according to an embodiment is shown, comprising a first glass body 110, a second glass body 120, and an adhesive layer that attaches the first glass body 110 and the second glass body 120 to each other. Specifically, the adhesive layer comprises a first adhesive layer 130a attached to the first glass body 110 and a second adhesive layer 130b attached to the second glass body 120. In various embodiments, the front projection display layer 140 and / or the rear projection display layer 150 may be disposed on a surface of the first glass body 110 remote from the second glass body 120, or on a surface of the second glass body 120 remote from the first glass body 110, or interposed between the first glass body 110 and the second glass body 120. Here, “between” encompasses various arrangements in which the front projection display layer 140 and the rear projection display layer 150 are directly adjacent to or not directly adjacent to the first glass body 110 or the second glass body 120. Figure 1 In the illustrated embodiment, the front projection display layer 140 and the rear projection display layer 150 are sandwiched between the first glass body 110 and the second glass body 120. As described above, the light-cutting layer of the present disclosure is arranged on the opposite side of the display image of the front projection display layer. Depending on the arrangement of the front projection display layer, the light-cutting layer can be arranged on the surface of the first glass body away from the second glass body, or on the surface of the second glass body away from the first glass body, or sandwiched between the first glass body and the second glass body. For example Figure 1 In the illustrated embodiment, the light-cutting layer 160 including the first light-cutting region 160a and the second light-cutting region 160b is sandwiched between the first glass body 110 and the second glass body 120. Specifically, the light-cutting layer 160 is sandwiched between the first adhesive layer 130a and the second adhesive layer 130b, and is attached to the rear projection display layer 150 through the third adhesive layer 130c, and is attached to the front projection display layer 140 through the fourth adhesive layer 130d, wherein the first light-cutting region 160a corresponds to the front projection display layer 140, that is, along the surface direction of the glass body, the first light-cutting region 160a can cover part or all of the front projection display layer 140, and the second light-cutting region 160b corresponds to the rear projection display layer 150, that is, along the surface direction of the glass body, the second light-cutting region 160b can cover part or all of the rear projection display layer 150. Figure 1In the illustrated embodiment, the first light-cutting region 160a of the light-cutting layer 160 covers, and preferably substantially covers, the entire front projection display layer 140 along the surface direction of the glass body, and the second light-cutting region 160b covers, and preferably substantially covers, the entire rear projection display layer 150 along the surface direction of the glass body. Here, "substantially covers" means that when the light-cutting region covers the entire front projection display layer or the entire rear projection display layer, the area of ​​the light-cutting region along the surface direction of the glass body (or glass component) is substantially equal to the area of ​​the front projection display layer or the rear projection display layer, that is, the area of ​​the light-cutting region is consistent with the area of ​​the front projection display layer or the rear projection display layer, or the area of ​​the light-cutting region is slightly larger than the area of ​​the front projection display layer or the rear projection display layer, and does not include a situation where the area of ​​the light-cutting region is significantly larger than the area of ​​the front projection display layer or the rear projection display layer. For example, the edge of the first light-intercepting region 160a may extend beyond the edge of the front projection display layer 140 by more than 1 mm, and the edge of the second light-intercepting region 160b may extend beyond the edge of the rear projection display layer 150 by more than 1 mm, preferably by 1 to 5 mm, for example, 3 mm, so as to ensure the above-mentioned effects required by the glass assembly.

[0069] Figure 1 In the illustrated embodiment, the front projection display layer 140 and the rear projection display layer 150 are respectively arranged on either side of the light-intercepting layer 160, and are staggered relative to each other in the cross-sectional direction of the glass assembly 100. Preferably, the front projection display layer 140 and the rear projection display layer 150 are staggered relative to each other and adjacent to each other to enhance the overall appearance of the glass assembly. As used herein, "adjacent" means adjacent and close, and here, the front projection display layer 140 and the rear projection display layer 150 are adjacent and close to each other. Preferably, when applied to vehicle door glass, the front projection display layer 140 is arranged in an area of ​​the door glass relatively closer to the front of the vehicle, and the rear projection display layer 150 is arranged in an area of ​​the door glass relatively closer to the rear of the vehicle, thereby advantageously meeting the ergonomic requirements of the driver or passenger.

[0070] It should be understood that Figure 1 In the figure, two light interception regions corresponding to one front projection display layer and one rear projection display layer are exemplarily shown. Depending on different needs, the glass component may include two or more front projection display layers and / or two or more rear projection display layers. Similarly, depending on different needs, the first light interception region may include two or more first light interception regions corresponding to at least part of one front projection display layer or at least part of each of the multiple front projection display layers. The second light interception region may include two or more second light interception regions corresponding to at least part of one rear projection display layer or at least part of each of the multiple rear projection display layers. In addition, Figure 1In the illustrated embodiment, the spacing between the adjacent first light-intercepting regions 160a and second light-intercepting regions 160b corresponding to the front projection display layer 140 and the rear projection display layer 150 can be less than or equal to 0.1 mm, so that the gap is invisible to the naked eye and ensures aesthetics. It should be understood that, depending on different needs, the front projection display layer 140 and the rear projection display layer 150 can be staggered and arranged in different areas of the glass component. Accordingly, the spacing between the first light-intercepting regions and the second light-intercepting regions is not limited. Preferably, for multiple first light-intercepting regions and / or multiple second light-intercepting regions corresponding to at least a portion of a front projection display layer or at least a portion of each of multiple front projection display layers and / or at least a portion of each of multiple rear projection display layers, the spacing between the multiple first light-intercepting regions can be less than or equal to 0.1 mm, and / or the spacing between the multiple second light-intercepting regions can be less than or equal to 0.1 mm.

[0071] The first adhesive layer 130a, the second adhesive layer 130b, the third adhesive layer 130c and the fourth adhesive layer 130d are adhesive layers suitable for laminated glass, such as polyvinyl butyral (PVB), ethylene vinyl acetate copolymer (EVA), and optically clear adhesive (OCA).

[0072] In some embodiments, the glass assembly 100 may further include a picture frame structure arranged around the front projection display layer 140 and / or the rear projection display layer 150 and / or the light intercepting layer 160. For example, Figure 1 The following examples illustrate a frame structure 170b arranged around the front projection display layer 140 (shown only on one side of the front projection display layer 140) and a frame structure 170a arranged around the rear projection display layer 150 (shown only on one side of the rear projection display layer 150). The frame structures 170a and 170b can pre-position the front projection display layer 140 and the rear projection display layer 150, filling the thickness difference between the edges of the front projection display layer 140 and the rear projection display layer 150 and the adhesive layer, ensuring a complete seal after lamination. Alternatively, the frame structure can be made of the same material as the adhesive layer. If the thickness of the front projection display layer 140 and / or the rear projection display layer 150 and / or the light-intercepting layer 160 is sufficiently small, the frame structure can be omitted.

[0073] Depending on the arrangement position of the projection device, the glass assembly of the present disclosure can obtain the effect of displaying images toward different sides of the glass assembly 100 through the front projection display layer 140 and / or the rear projection display layer 150. For example, when the glass assembly 100 is applied to a vehicle-mounted projection system, the first glass body 110 can be oriented toward the outside of the vehicle (can be referred to as the outer glass), the second glass body 120 can be oriented toward the inside of the vehicle (can be referred to as the inner glass), the front projection display layer 140 can be configured to display images toward the inside of the vehicle, and the rear projection display layer 150 can be configured to display images toward the outside of the vehicle. Accordingly, the projection device in the vehicle-mounted projection system can be arranged inside the vehicle so that the front projection display layer 140 specifically faces Figure 1 The image is displayed below the direction shown (ie, the interior of the vehicle), and the rear projection display layer 150 is specifically oriented toward Figure 1 In this way, according to different needs, the first light-intercepting region 160a of the light-intercepting layer 160 can be switched to a dark state, so that the front projection display layer 140 can provide an image display effect with enhanced contrast, provide privacy of image content, and reduce the impact on people outside the vehicle. At the same time, the second light-intercepting region 160b can also be switched to a dark state to provide privacy inside the vehicle. Alternatively, the second light-intercepting region 160b can remain in a non-dark state, for example, to meet the viewing field requirements of the driver or passenger, or to provide an image display effect to the outside of the vehicle by the rear projection display layer 150.

[0074] Figure 2 Another embodiment of the glass assembly 100-1 is shown as an example. Figure 1 The embodiment shown differs in that the front projection display layer 140 and the rear projection display layer 150 are arranged on the same side of the light-cutting layer 160. In the cross-sectional direction of the glass assembly 100-1, the front projection display layer 140 and the rear projection display layer 150 are arranged on the same layer. Preferably, in the cross-sectional direction of the glass assembly 100-1, the front projection display layer 140 and the rear projection display layer 150 are arranged adjacent to each other. In addition, the light-cutting layer 160, which includes the first light-cutting region 160a and the second light-cutting region 160b, is sandwiched between the first adhesive layer 130a and the second adhesive layer 130b and is separated from the front projection display layer 140 and the rear projection display layer 150 by the third adhesive layer 130c. It should be understood that Figure 2 The layers formed by the front projection display layer 140 and the rear projection display layer 150, as well as the light-cutting layer 160, are shown as having substantially the same length and / or width as the first glass body 110 and the second glass body 120. In certain embodiments, the front projection display layer 140 and / or the rear projection display layer 150 and / or the light-cutting layer 160 may also be provided with a picture frame structure.

[0075] Figure 3A glass assembly 100 - 2 according to another embodiment is shown as an example. Figure 4 FIG. 1 shows another embodiment of a glass assembly 100 - 3 . Figure 1 The embodiment shown is different in that the front projection display layer 140 and the rear projection display layer 150 overlap each other in the cross-sectional direction of the glass components 100-2 and 100-3, for example, as shown in FIG. Figure 4 Partial overlap or as shown Figure 3 In other words, in certain embodiments according to different needs, the first light interception area corresponds to at least a portion of the front projection display layer and at least a portion of the rear projection display layer, and / or the second light interception area corresponds to at least a portion of the rear projection display layer and at least a portion of the front projection display layer. Similarly, in certain embodiments, the front projection display layer 140 and / or the rear projection display layer 150 and / or the light interception layer 160 may also be provided with a picture frame structure, for example Figure 4 In the illustrated embodiment, picture frame structures 170a, 170b may be provided for the front projection display layer 140 and the rear projection display layer 150, respectively.

[0076] for Figure 3 In the embodiment shown, the first light interception region 160a and the second light interception region 160b cover together along the surface direction of the glass body and preferably substantially cover the entire front projection display layer 140, and the first light interception region 160a and the second light interception region 160b cover together along the surface direction of the glass body and preferably substantially cover the entire rear projection display layer 150. In this case, Figure 1 or Figure 2The illustrated embodiment is similar to switching the first light-intercepting region 160a of the light-intercepting layer 160 to a dark state, thereby enabling the portion of the front projection display layer 140 corresponding to the first light-intercepting region 160a to provide an image display effect with enhanced contrast, provide privacy for the image content, and reduce the impact on people outside the vehicle. Optionally, while the first light-intercepting region 160a is switched to a dark state, the second light-intercepting region 160b can remain in a non-dark state to meet the viewing requirements of the driver or passenger, or can be switched to a dark state to provide privacy for the interior of the vehicle, or enable the portion of the front projection display layer 140 corresponding to the second light-intercepting region 160b to provide an image display effect with enhanced contrast, provide privacy for the image content, and reduce the impact on people outside the vehicle. Optionally, the second light-intercepting region 160b can be switched to a non-dark state, thereby enabling the portion of the rear projection display layer 150 corresponding to the second light-intercepting region 160b to provide an image display effect toward the outside of the vehicle. Optionally, when the second light-intercepting region 160b is switched to a non-dark state, the first light-intercepting region 160a may be switched to a dark state, so that the portion of the front projection display layer 140 corresponding to the first light-intercepting region 160a provides an image display effect with enhanced contrast, provides privacy for the image content, and reduces the impact on people outside the vehicle. Optionally, when the second light-intercepting region 160b is switched to a non-dark state, the first light-intercepting region 160a may also be switched to a non-dark state, so that the portion of the rear projection display layer 150 corresponding to the first light-intercepting region 160a provides an image display effect toward the outside of the vehicle.

[0077] exist Figure 4In the illustrated embodiment and some variations thereof, the front projection display layer 140 and the rear projection display layer 150 may overlap with each other and partially overlap. For example, the first light interception region 160a covers a portion of the front projection display layer 140 along the surface direction of the glass body, or covers and preferably substantially covers the entire front projection display layer 140 and covers a portion of the rear projection display layer 150, and / or the second light interception region 160b covers a portion of the rear projection display layer 150 along the surface direction of the glass body, or covers and preferably substantially covers the entire rear projection display layer 150 and covers a portion of the front projection display layer 140; optionally, the first light interception region 160a covers a portion of the front projection display layer 140 along the surface direction of the glass body, or covers and preferably substantially covers the entire front projection display layer 140 and covers a portion of the rear projection display layer 150, and the first light interception region 160a and the second light interception region 160b overlap along the surface direction of the glass body. The first light cut-off area 160a and the second light cut-off area 160b cover and preferably substantially cover the entire rear projection display layer 150, or the second light cut-off area 160b covers part of the rear projection display layer 150 along the surface direction of the glass body without covering the front projection display layer 140; or optionally, the second light cut-off area 160b covers part of the rear projection display layer 150 along the surface direction of the glass body, or covers and preferably substantially covers the entire rear projection display layer 150 and covers part of the front projection display layer 140, and the first light cut-off area 160a and the second light cut-off area 160b cover and preferably substantially cover the entire front projection display layer 140 along the surface direction of the glass body, or the first light cut-off area 160a covers part of the front projection display layer 140 along the surface direction of the glass body without covering the rear projection display layer 150. Figure 5 FIG. 1 shows another embodiment of a glass assembly 100 - 4 . Figure 2 The illustrated embodiment differs in that, in the cross-sectional direction of the glass assembly 100-4, the front projection display layer 140 and the rear projection display layer 150 are arranged in different layers. Specifically, the front projection display layer 140 and the rear projection display layer 150 are arranged on the same side of the light-intercepting layer 160. Furthermore, in the cross-sectional direction of the glass assembly 100-4, the front projection display layer 140 and the rear projection display layer 150 are arranged in different layers and completely overlap (or partially overlap). Advantageously, the light-intercepting layer 160 is sandwiched between the first adhesive layer 130a and the second adhesive layer 130b and is separated from the rear projection display layer 150 by the third adhesive layer 130c. The front projection display layer 140 and the rear projection display layer 150 are separated by the fourth adhesive layer 130d. As such, based on different needs, the first light-intercepting region 160a and / or the second light-intercepting region 160b can be switched to a dark state or a non-dark state to achieve the aforementioned effects, which will not be described in detail here.

[0078] It should be understood that Figures 2 to 5In the exemplary embodiment, two light-intercepting regions corresponding to at least a portion of a front projection display layer and at least a portion of a rear projection display layer, respectively, are also shown. Depending on different needs, in an embodiment not shown, the glass component may also include two or more front projection display layers and / or two or more rear projection display layers. Similarly, depending on different needs, the first light-intercepting region may include two or more first light-intercepting regions corresponding to at least a portion of a front projection display layer or at least a portion of each of the multiple front projection display layers, and the second light-intercepting region may include two or more second light-intercepting regions corresponding to at least a portion of a rear projection display layer or at least a portion of each of the multiple rear projection display layers.

[0079] It should be understood that, provided that the concepts of the present disclosure are met, the front projection display layer, rear projection display layer, and corresponding light interception regions herein encompass any appropriate shape, including but not limited to rectangles, squares, triangles, sectors, and other shapes with curved or straight edges. Light interception regions of different shapes or sizes and / or different numbers of light interception regions and / or the size of the light interception regions covering the front projection display layer and rear projection display layer can be determined based on the shape or size of the area where the image is to be displayed and / or the shape or size of the area where the corresponding effect is to be provided.

[0080] When the glass assembly is used as, for example, a front windshield, rear windshield, or corner window, the glass assembly is adapted to cooperate with a sealing strip when the glass assembly is mounted on the vehicle and in full use. When the glass assembly is configured as door glass, the glass assembly is adapted to cooperate with a water-cut strip (also referred to as a sealing strip) when the glass assembly is mounted on the vehicle and in full use (i.e., when the door glass is fully closed). The water-cut strip is a rubber sealing strip located between the door glass and the door frame at the bottom of the door glass. It is used to remove water droplets, mist, and dust from the glass surface when the door glass is raised or lowered, and also serves to enhance aesthetics.

[0081] The present disclosure also provides a projection device configured to project an image onto any of the aforementioned glass assemblies. The present disclosure also provides a projection system comprising the projection device and any of the aforementioned glass assemblies, wherein the projection device corresponds to the front projection display layer and the rear projection display layer of the glass assembly.

[0082] In certain embodiments, the glass assembly includes a control unit, which includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer. The control unit may be configured to: obtain instructions for the area where the projection device projects an image on the front projection display layer and / or the rear projection display layer, or determine the area where the projection device projects an image on the front projection display layer and / or the rear projection display layer; cause the projection device to project an image on the area where the image is projected on the front projection display layer and / or the rear projection display layer; in response to the projection device projecting an image on the area where the image is projected on the front projection display layer and / or the rear projection display layer, cause the light interception area of ​​the light interception layer corresponding to the area where the image is projected on the front projection display layer to be in a dark state and / or cause the light interception area of ​​the light interception layer corresponding to the area where the image is projected on the rear projection display layer to be in a non-dark state. For example, for Figure 3 In the embodiment shown, when the projection device projects an image onto a certain portion of the front projection display layer 140, the corresponding first light interception area 160a or second light interception area 160b will switch to a dark state. When there is no longer an image projected onto a certain portion of the front projection display layer 140, the corresponding first light interception area 160a or second light interception area 160b can be switched to a non-dark state as needed, for example, to provide a clear viewing field, or remain in a dark state to meet the user's specific needs. For another example, when the projection device projects an image onto a certain portion of the rear projection display layer 150, the corresponding second light interception area 160b or first light interception area 160a will switch to a non-dark state. Figure 1 and Figure 2 In the embodiment shown, the area of ​​the projected image is the entire front projection display layer 140 or the entire rear projection display layer 150. It should be understood that the control unit here may include independent control units separated in different physical locations, or may include an integrated control unit integrated in the same physical location.

[0083] In certain embodiments, the glass assembly may include a human-machine interface unit, wherein the control unit includes at least an electronic control unit for the human-machine interface unit. The electronic control unit for the human-machine interface unit may be configured to determine the area in which the projection device projects an image on the front projection display layer and / or the rear projection display layer. Optionally, the control unit further includes a vehicle control unit, a remote control unit, an electronic control unit for the projection device, and / or an electronic control unit for the light interception layer.

[0084] In some embodiments, the human-computer interaction unit may include a contact input unit or a contactless input unit. The human-computer interaction unit is used to sense, for example, but not limited to touch information and / or voice information and / or motion information, wherein the motion information includes, for example, but not limited to gestures and / or postures and / or motions. Accordingly, the glass component may include a functional layer such as a touch layer (such as a capacitive touch film). The function of the touch layer is well known in the art and will not be described in detail here. For non-contact input methods, since a touch layer is not required, the glass component can have a relatively higher light transmittance and transparency. The contactless input unit can be configured to be adjacent to the edge of the glass body and arranged on the surface of the glass body and / or near the surface of the glass body. For example, the contactless input unit may include a proximity sensor and / or a distance sensor and / or an image sensor. Preferably, the proximity sensor may be an ultrasonic sensor or an infrared sensor, and the distance sensor may be a laser ranging sensor or an ultrasonic ranging sensor or an infrared ranging sensor. Preferably, the distance sensor may be a time-of-flight (TOF) sensor. It should be understood that the non-contact input units exemplified above can be used independently, combined with each other, or integrated with related components. For example, according to different needs, the human-computer interaction unit can be configured as a projection device with a time-of-flight sensor, or the human-computer interaction unit can be configured as a camera with an image sensor, such as a CCD camera, that is, a digital camera with a charge coupled device (CCD) image sensor. In addition, the working principles of the non-contact input units exemplified above are already known to technicians in the field and will not be elaborated here.

[0085] It should be understood that, for motion information, gesture refers to the specific movements and postures that a person presents when using his arms, such as a specific hand posture formed by the position and shape of the palm and fingers. Posture refers to the appearance of the human body. Action covers the activities or actions of the human body, such as changes in the position of facial features (i.e., changes in expression), changes in the position of human limbs (i.e., changes in movement), or changes in the relative position of the human body and the environment (i.e., changes in relative position). It should be understood that the above-mentioned exemplified motion information and the working principles of the information it provides are already known to technicians in this field and will not be elaborated here.

[0086] With respect to the projection device disclosed herein, in certain embodiments, the projection device includes a control unit, which includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer. The control unit may be configured to: obtain an instruction on an area on the front projection display layer and / or the rear projection display layer where the projection device projects an image, or determine an area on the front projection display layer and / or the rear projection display layer where the projection device projects an image; cause the projection device to project an image on the area on the front projection display layer and / or the rear projection display layer where the image is projected; in response to the projection device projecting an image on the area on the front projection display layer and / or the rear projection display layer where the image is projected, cause the light interception area of ​​the light interception layer of the glass component corresponding to the area on the front projection display layer where the image is projected (for example, Figure 1 and Figure 2 The first light intercepting region 160a, or Figure 3 The first light interception area 160a and / or the second light interception area 160b) is in a dark state and / or the light interception area of ​​the light interception layer corresponding to the area where the image is projected on the rear projection display layer (eg Figure 1 and Figure 2 The second light intercepting region 160b, or Figure 3 The second light-cutting region 160b and / or the first light-cutting region 160a) is in a non-dark state.

[0087] In certain embodiments, the projection device may include a human-machine interface unit, wherein the control unit includes at least an electronic control unit of the human-machine interface unit. The electronic control unit of the human-machine interface unit may be configured to determine the area in which the projection device projects an image on the front projection display layer and / or the rear projection display layer of the glass assembly. Optionally, the control unit also includes a vehicle control unit, a remote control unit, an electronic control unit of the projection device, and / or an electronic control unit of the light interception layer.

[0088] In the manner in which the glass assembly and / or the projection device comprises a human-machine interaction unit, the human-machine interaction unit may be communicatively connected to the glass assembly and / or the projection device via an external interface and / or a wireless transceiver.

[0089] Similar to the glass assembly including a human-computer interaction unit, the human-computer interaction unit included in the projection device may also include a contact input unit or a contactless input unit to sense, for example, touch information, voice information, and / or motion information, including but not limited to, gestures, postures, and / or movements, which are not described in detail here. In some embodiments, the projection device may be configured as a projection device with a time-of-flight sensor.

[0090] According to different needs, the first light interception area and the second light interception area can be controlled separately, so that, for example, they can be used in conjunction with a projection device to achieve various adjustment functions such as segmented display, dynamic display, and flow display to meet the different functional needs of users. In some embodiments, relative to each light interception area of ​​the light interception layer of the glass component, for example Figure 1 and Figure 2 In the embodiment shown, the projection device is configured to project an image onto (i.e., only onto) the portion of the front projection display layer corresponding to the first light-cutting region or to project an image onto (i.e., only onto) the portion of the rear projection display layer corresponding to the second light-cutting region. Figure 3 In the embodiment shown, the projection device is configured to project an image onto a portion of the front projection display layer corresponding to the first light-cutting region and / or the second light-cutting region, or to project an image onto a portion of the rear projection display layer corresponding to the second light-cutting region and / or the first light-cutting region. Accordingly, the projection device may include a single projector or multiple projectors corresponding to the front projection display layer and the rear projection display layer, respectively. In certain embodiments, the projection device may be configured as a movable projector so as to be used according to different needs. For example, Figure 6 In the exemplary projection system, when the glass assembly 100 is a vehicle window glass and the front projection display layer and the rear projection display layer are not required to display images simultaneously, the projection device 180 can be configured as a movable projector that can move along the glass assembly.

[0091] Advantageously, when the glass component is used as a vehicle window, particularly a vehicle door, the projection device can be configured as a short-throw projector positioned adjacent to the vehicle window (e.g., on a door trim panel, pillar, or vehicle roof) to help avoid adverse effects of projected light on the surface of the glass component. For example, with front projection, specular reflections can lead to potential ghosting of the image, while direct transmission can result in a loss of privacy and disturbing effects on occupants outside the vehicle. With rear projection, specular reflections can be disruptive to occupants inside the vehicle.

[0092] Figure 7 and Figure 8 Different effects of the light projected by the projection device 180 on the front projection display and the rear projection display of the glass assembly 100 are respectively shown. Figure 7 In the projection device 180, a short-throw projector is used. The light L1 projected by the projection device 180 passes through the glass component 100. The direct transmission light L2 and the mirror reflection light L3 on the surface of the glass component will not enter the human eye E1 of the person inside the vehicle and the human eye E2 of the person outside the vehicle. However, the diffuse reflection light L4 through the forward projection display layer enters the human eye E1 of the person inside the vehicle to achieve the image display effect. Similarly, Figure 8In the figure, the light L1 projected by the projection device 180 will not enter the human eye E1 of the person inside the vehicle or the human eye E2 of the person outside the vehicle through the direct transmitted light L2 behind the glass component 100 and the mirror reflected light L3 on the surface of the glass component, while the transmitted light L5 through the rear projection display layer can enter the human eye E2 of the person outside the vehicle to achieve the image display effect.

[0093] Figures 9 to 11 The following example shows the projection device projecting images onto the front projection display layer and the rear projection display layer of the glass component, and the image display effect that can be obtained by projecting images simultaneously, wherein the glass components are both Figure 1 The glass assembly 100 is shown as an example.

[0094] Figure 9 In the projection device, the projection device only projects light L1 to the area where the projection display layer 140 is located. At this time, the first light interception area 160a corresponding to the projection display layer 140 is controlled to be dark, and the human eye E1 of the person inside the vehicle can observe the image displayed by the diffusely reflected light L4. Figure 10 In the embodiment, the projection device projects light L1 only to the area where the rear projection display layer 150 is located. At this time, the second light interception area 160b corresponding to the rear projection display layer 150 is controlled to be in a non-dark state, and the human eye E2 of the person outside the vehicle can observe the image displayed by the transmitted light L5. Figure 11 In the embodiment, the projection device simultaneously projects light L1 onto the areas where the front projection display layer 140 and the rear projection display layer 150 are located. At this time, the first light interception area 160a corresponding to the front projection display layer 140 is controlled to be in a dark state, and the second light interception area 160b corresponding to the rear projection display layer 150 is controlled to be in a non-dark state. The human eye E1 of the person inside the vehicle can observe the image displayed by the diffusely reflected light L4, and the human eye E2 of the person outside the vehicle can observe the image displayed by the transmitted light L5.

[0095] Regardless of the arrangement and combination, the glass assembly disclosed herein advantageously provides, according to different needs, regionally provided image display functions to one side of the glass assembly to enhance contrast, privacy functions for image content on the image display side, and reduced adverse effects on the non-image display side, and / or provides image display functions to the other side of the glass assembly, thereby providing users with a rich and comfortable user experience. It should be understood that in the possible embodiments described or not described, various improvements can be used independently or in combination with each other, so that the glass assembly and / or projection device disclosed herein, as well as a projection system having the glass assembly and / or projection device, can be applied in a variety of situations to meet the diverse needs of users.

[0096] For the projection system of the present disclosure, in certain embodiments, the projection system includes a control unit, and the control unit includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer. The control unit can be configured to: obtain an instruction on the area where the projection device projects an image on the front projection display layer and / or the rear projection display layer, or determine the area where the projection device projects an image on the front projection display layer and / or the rear projection display layer; cause the projection device to project an image on the area where the image is projected on the front projection display layer and / or the rear projection display layer; in response to the projection device projecting an image on the area where the image is projected on the front projection display layer and / or the rear projection display layer, cause the light interception area of ​​the light interception layer corresponding to the area where the image is projected on the front projection display layer (for example Figure 1 and Figure 2 The first light intercepting region 160a, or Figure 3 The first light interception area 160a and / or the second light interception area 160b) is in a dark state and / or the light interception area of ​​the light interception layer corresponding to the area where the image is projected on the rear projection display layer (eg Figure 1 and Figure 2 The second light intercepting region 160b, or Figure 3 The second light-cutting region 160b and / or the first light-cutting region 160a) is in a non-dark state.

[0097] In certain embodiments, the projection system may include a human-computer interaction unit, wherein the control unit includes at least an electronic control unit of the human-computer interaction unit. The electronic control unit of the human-computer interaction unit may be configured to determine the area on the front projection display layer and / or the rear projection display layer of the glass assembly where the projection device projects an image. In this case, the control unit may also include a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer. Alternatively, the human-computer interaction unit may be communicatively connected to the glass assembly and / or the projection device via an external interface and / or a wireless transceiver. Thus, when applied to an in-vehicle projection system, the in-vehicle projection system may be integrated with the human-computer interaction unit into an integrated control system, such as an automated driving system (ADAS), thereby providing a richer and more diverse range of functional modes and enhancing the driving experience for the driver and passengers. Furthermore, in certain embodiments, in addition to the human-computer interaction method, the in-vehicle projection system of the present disclosure may also, for example, control the projection device to project an image onto the front projection display layer and / or the rear projection display layer of the glass assembly, based on the vehicle's operating mode (e.g., starting, accelerating, constant speed, decelerating, turning, driving uphill or downhill, parking, etc.), for example, through the control unit.

[0098] The present disclosure further provides a means of transport, including but not limited to a vehicle, an airplane, a ship, etc. The means of transport includes the above-mentioned glass assembly, or the above-mentioned projection device, or the above-mentioned projection system.

[0099] It should be understood that the embodiments shown in the figures merely illustrate the optional architecture, shape, size, and arrangement of the various optional components of the glass assembly according to the present disclosure. However, these are merely illustrative and non-limiting. Other shapes, sizes, and arrangements may be employed without departing from the spirit and scope of the present disclosure.

[0100] The technical content and technical features of the present disclosure have been disclosed above. However, it is understood that, based on the creative ideas of the present disclosure, those skilled in the art may make various changes and improvements to the above-disclosed concepts, all of which fall within the scope of protection of the present disclosure. The description of the above embodiments is illustrative rather than restrictive, and the scope of protection of the present disclosure is determined by the claims.

Claims

1. A glass component, characterized in that: The glass assembly comprises: vitreous body; an orthographic projection display layer, arranged on a surface of the glass body and configured to display an image to one side of the glass assembly; a rear projection display layer, arranged on a surface of the glass body and configured to display an image to the other side opposite to the glass component; and a light-cutting layer, the light-cutting layer comprising a first light-cutting region and a second light-cutting region, each light-cutting region being configured to be switchable between a non-dark state and a dark state, The light interception layer is arranged on the opposite side of the front projection display layer to the display image, the first light interception area corresponds to at least part of the front projection display layer, and the second light interception area corresponds to at least part of the rear projection display layer.

2. The glass assembly according to claim 1, wherein: The glass component includes one or more of the forward projection display layers and / or one or more of the rear projection display layers, and / or the first light-cutting area includes one or more first light-cutting areas corresponding to at least a portion of a forward projection display layer or at least a portion of each of the multiple front projection display layers, and the second light-cutting area includes one or more second light-cutting areas corresponding to at least a portion of a rear projection display layer or at least a portion of each of the multiple rear projection display layers.

3. The glass assembly according to claim 1 or 2, characterized in that: The light-intercepting layer is arranged on the same side as or the opposite side of the display image of the rear projection display layer.

4. The glass assembly according to claim 1 or 2, characterized in that: The front projection display layer and the rear projection display layer are respectively arranged on both sides of the light-truncation layer. In the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer overlap or staggered with each other; optionally, in the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer completely overlap or partially overlap; or optionally, in the cross-sectional direction of the glass component, the front projection display layer and the rear projection display layer staggered with each other and adjacent to each other.

5. The glass assembly according to claim 1 or 2, characterized in that: The forward projection display layer and the rear projection display layer are arranged on the same side of the light-truncation layer, and in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in the same layer or different layers; optionally, in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in the same layer and are adjacent to each other; or optionally, in the cross-sectional direction of the glass component, the forward projection display layer and the rear projection display layer are arranged in different layers and completely overlap or partially overlap.

6. The glass assembly according to claim 1 or 2, characterized in that: The first light-cutting area corresponds to at least a portion of the front projection display layer and at least a portion of the rear projection display layer, and / or the second light-cutting area corresponds to at least a portion of the rear projection display layer and at least a portion of the front projection display layer; optionally, the first light-cutting area and the second light-cutting area jointly cover the entire front projection display layer along the surface direction of the glass body, and the first light-cutting area and the second light-cutting area jointly cover the entire rear projection display layer along the surface direction of the glass body; or optionally, the first light-cutting area covers a portion of the front projection display layer or covers the entire front projection display layer and covers a portion of the rear projection display layer along the surface direction of the glass body, and / or the second light-cutting area covers a portion of the rear projection display layer or covers the entire rear projection display layer and covers a portion of the front projection display layer along the surface direction of the glass body; or Optionally, the first light-cutting area covers part of the front projection display layer or the entire front projection display layer along the surface direction of the glass body, and covers part of the rear projection display layer, and the first light-cutting area and the second light-cutting area jointly cover the entire rear projection display layer along the surface direction of the glass body, or the second light-cutting area covers part of the rear projection display layer along the surface direction of the glass body but does not cover the front projection display layer; or optionally, the second light-cutting area covers part of the rear projection display layer or the entire rear projection display layer along the surface direction of the glass body, and covers part of the front projection display layer, and the first light-cutting area and the second light-cutting area jointly cover the entire front projection display layer along the surface direction of the glass body, or the first light-cutting area covers part of the front projection display layer along the surface direction of the glass body but does not cover the rear projection display layer.

7. The glass assembly according to claim 1 or 2, characterized in that: The first light-intercepting region covers the entire front projection display layer along the surface direction of the glass body, and the second light-intercepting region covers the entire rear projection display layer along the surface direction of the glass body.

8. The glass assembly according to claim 2, wherein: The intervals between the plurality of first light-cutting regions are less than or equal to 0.1 mm, and / or the intervals between the plurality of second light-cutting regions are less than or equal to 0.1 mm, and / or the intervals between adjacent first light-cutting regions and second light-cutting regions are less than or equal to 0.1 mm.

9. The glass assembly according to claim 1 or 2, characterized in that: The light-cutting layer is configured as a suspended particle film layer and / or an electrochromic film layer and / or a dye-doped polymer dispersed liquid crystal film layer and / or a guest-host liquid crystal film layer and / or an electrophoretic film layer.

10. The glass assembly according to any one of claims 1, 2 or 8, characterized in that: When the first light-cutting area and / or the second light-cutting area is in a dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is less than or equal to 10%, less than or equal to 5%, less than or equal to 4%, less than or equal to 3%, less than or equal to 2%, less than or equal to 1%, or is the lowest transmittance of the first light-cutting area and / or the second light-cutting area; and / or when the first light-cutting area and / or the second light-cutting area is in a non-dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is greater than or equal to 20%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or is the highest transmittance of the first light-cutting area and / or the second light-cutting area; optionally, when the first light-cutting area and / or the second light-cutting area is in a non-dark state, in the cross-sectional direction of the glass component, the visible light transmittance of the glass component corresponding to the first light-cutting area and / or the second light-cutting area is greater than or equal to 20%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%.

11. The glass assembly according to any one of claims 1, 2 or 8, characterized in that: The visible light transmittance of the first light-cutting area and / or the second light-cutting area when being in a non-dark state is greater than the visible light transmittance of the first light-cutting area and / or the second light-cutting area when being in a dark state, and the difference between the two is greater than or equal to 5%, greater than or equal to 10%, greater than or equal to 15%, greater than or equal to 20%, greater than or equal to 25%, greater than or equal to 30%, greater than or equal to 40%, greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%.

12. The glass assembly according to any one of claims 1, 2 or 8, characterized in that: The glass assembly includes a picture frame structure arranged around the front projection display layer and / or the rear projection display layer and / or the light intercepting layer.

13. The glass assembly according to any one of claims 1, 2 or 8, characterized in that: The glass assembly is a vehicle window glass, including a front windshield, a rear windshield, a skylight, a door glass or a corner window glass.

14. The glass assembly according to claim 13, wherein: When the first light-cutting area and / or the second light-cutting area is in a non-dark state, the visible light transmittance of the first light-cutting area and / or the second light-cutting area is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, greater than or equal to 80%, or is the highest transmittance of the first light-cutting area and / or the second light-cutting area; optionally, when the first light-cutting area and / or the second light-cutting area is in a non-dark state, in the cross-sectional direction of the glass component, the visible light transmittance of the glass component corresponding to the first light-cutting area and / or the second light-cutting area is greater than or equal to 50%, greater than or equal to 60%, greater than or equal to 70%, or greater than or equal to 80%.

15. The glass assembly according to claim 13, wherein The glass body is a first glass body, and the glass assembly also includes a second glass body. The forward projection display layer and / or the rear projection display layer are arranged on the surface of the first glass body away from the second glass body, or the forward projection display layer and / or the rear projection display layer are arranged on the surface of the second glass body away from the first glass body, or the forward projection display layer and / or the rear projection display layer are sandwiched between the first glass body and the second glass body, and the forward projection display layer is configured to display images to the interior of the vehicle, and the rear projection display layer is configured to display images to the outside of the vehicle.

16. The glass assembly according to claim 1 or 2, characterized in that: The glass assembly comprises a control unit; optionally, the control unit comprises a vehicle control unit and / or a remote control unit and / or an electronic control unit of a projection device and / or an electronic control unit of a light-intercepting layer.

17. The glass assembly according to claim 16, wherein: The glass assembly includes a human-machine interaction unit, and the control unit includes at least an electronic control unit of the human-machine interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of a projection device and / or an electronic control unit of a light-truncation layer.

18. The glass assembly according to claim 17, wherein: The human-computer interaction unit includes a contact input unit or a non-contact input unit.

19. The glass assembly according to claim 18, wherein The contactless input unit is configured to be adjacent to the edge of the glass body and arranged on the surface of the glass body and / or near the surface of the glass body; and / or the contactless input unit includes a proximity sensor and / or a distance sensor and / or an image sensor.

20. The glass assembly according to claim 18 or 19, characterized in that The human-computer interaction unit is configured as a time-of-flight sensor and / or an ultrasonic sensor and / or an infrared sensor, and / or the human-computer interaction unit is configured as a camera with an image sensor and / or a projection device with a time-of-flight sensor.

21. A projection device, characterized in that: The projection device is configured to project an image onto the glass assembly according to any one of claims 1 to 20.

22. The projection device according to claim 21, wherein: When the projection device is configured to project an image onto the glass assembly according to claim 20, the projection device is the projection device with the time-of-flight sensor.

23. The projection device according to claim 21, wherein: The projection device comprises a control unit; optionally, the control unit comprises a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light intercepting layer.

24. The projection device according to claim 23, wherein: The projection device includes a human-computer interaction unit, and the control unit includes at least an electronic control unit of the human-computer interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light interception layer.

25. The projection device according to claim 24, wherein: The human-computer interaction unit includes a contact input unit or a non-contact input unit.

26. The projection device according to any one of claims 21 to 25, characterized in that Relative to the first light-cutting area and the second light-cutting area of ​​the light-cutting layer of the glass component, the projection device is configured to be able to project an image onto at least a portion of the front projection display layer corresponding to the first light-cutting area and / or to project an image onto at least a portion of the rear projection display layer corresponding to the second light-cutting area.

27. The projection device according to claim 26, wherein: The projection device is configured as a single projector, or is configured as a plurality of projectors corresponding to the front projection display layer and the rear projection display layer respectively; optionally, the projection device is configured as a movable projector.

28. The projection device according to claim 26, wherein: The glass component is a vehicle window glass, and the projection device is configured as a short-throw projector arranged adjacent to the vehicle window glass.

29. A projection system, characterized in that: The projection system comprises a glass assembly according to any one of claims 1 to 20 and a projection device, wherein the projection device corresponds to the front projection display layer and the rear projection display layer of the glass assembly; optionally, the projection system is a vehicle-mounted projection system; optionally, the projection device is a projection device according to any one of claims 21 to 28.

30. The projection system according to claim 29, wherein: The projection system comprises a control unit; optionally, the control unit comprises a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light-truncation layer.

31. The projection system according to claim 30, wherein: The projection system includes a human-computer interaction unit, and the control unit includes at least an electronic control unit of the human-computer interaction unit; optionally, the control unit also includes a vehicle control unit and / or a remote control unit and / or an electronic control unit of the projection device and / or an electronic control unit of the light-truncation layer.

32. The projection system according to claim 31, wherein: The human-computer interaction unit includes a contact input unit or a non-contact input unit.

33. A means of transport, characterized in that: The vehicle comprises the glass assembly according to any one of claims 1 to 20, or the projection device according to any one of claims 21 to 28, or the projection system according to any one of claims 29 to 32; optionally, the vehicle comprises a vehicle.

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