Display window and vehicle

Abstract

A display window and a vehicle. The display window comprises: a glass body (10), a function display structure (20), and a crack isolation portion (30). The glass body (10) is provided with a light-transmitting area (101) and a shaded area (102) arranged in the circumferential direction of the light-transmitting area (101), the visible light transmittance of the light-transmitting area (101) being greater than or equal to 70%. At least one function display structure (20) is provided and is arranged in the shaded area (102). The crack isolation portion (30) is arranged between the glass body (10) and the function display structure (20), and the function display structure (20) is connected to the glass body (10) by means of the crack isolation portion (30). As the crack isolation portion (30) is arranged between the glass body (10) and the function display structure (20), when the glass body (10) cracks under a strong impact, the crack isolation portion (30) plays a role in isolation, and thus prevents cracks from extending to the function display structure (20), that is, no crack is observed on the function display structure (20), thereby realizing stable and reliable display, reducing temporary potential secondary hazards, and improving the safety and stability.

Description

Display windows and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to a Chinese patent application filed with the China Patent Office on July 14, 2023, with application number 2023108667421 and titled “Display Window and Vehicle,” and the entire contents of the patent application are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of vehicle window glass, and in particular to a display window and a vehicle. Background Art

[0004] With the evolution of the era of intelligent network connectivity, vehicles can provide various types of information to passengers, such as vehicle information, road information, social media information, etc. This can generally be achieved through the use of vehicle head-up displays (HUDs), instrument panels, central control screens, co-pilot displays, etc., and their combinations, to meet multi-format, near- and far-level display needs, thereby bringing passengers a more comfortable, safe, and intelligent experience and rich information.

[0005] Displays such as instrument panels and central control screens require the driver to lower their head to observe, temporarily diverting their eyes away from the road, posing a safety hazard. Traditional head-up displays (HUDs) display the HUD image in the light-transmitting area of ​​the windshield, with the exterior environment serving as the HUD image's background. Ambient brightness and other interfering light can affect the driver's ability to perceive the HUD image, compromising driving safety and visual comfort.

[0006] Summary of the Invention

[0007] According to various embodiments of the present application, the present application provides a display window and a vehicle.

[0008] A display window, comprising:

[0009] A glass body, wherein the glass body is provided with a light-transmitting area and a shielding area arranged circumferentially around the light-transmitting area, and the visible light transmittance of the light-transmitting area is greater than or equal to 70%;

[0010] a function display structure, wherein at least one function display structure is provided and is disposed in the shielding area; and

[0011] A crack isolation portion is provided between the glass body and the functional display structure, and the functional display structure is connected to the glass body through the crack isolation portion.

[0012] In one embodiment, the functional display structure includes a reflective element and / or an image generating element.

[0013] In one embodiment, the shielding area includes a bottom shielding area located below the light-transmitting area, and the functional display structure is disposed in the bottom shielding area.

[0014] In one embodiment, the glass body includes an outer glass plate, a first adhesive layer, and an inner glass plate that are stacked and connected in sequence; the outer glass plate has a first surface and a second surface arranged opposite to each other, and the inner glass plate has a third surface and a fourth surface arranged opposite to each other, and the second surface is arranged opposite to the third surface; the glass body also includes a first light-blocking layer arranged in the bottom shielding area, and the first light-blocking layer is located between the second surface and the functional display structure.

[0015] In one embodiment, the visible light transmittance of the first light blocking layer is less than or equal to 5%, and the first light blocking layer is a dark printing layer or a dark polymer film.

[0016] In one embodiment, the first light blocking layer is a dimming film, and the minimum visible light transmittance of the dimming film is less than or equal to 5%.

[0017] In one embodiment, at least one notch is provided on the inner glass plate, the functional display structure is provided in the corresponding notch, the functional display structure is connected to the outer glass plate through the first adhesive layer, and the functional display structure is connected to the inner glass plate through the crack isolation portion.

[0018] In one embodiment, at least one notch is provided on the inner glass plate, the functional display structure is provided on the fourth surface and covers the corresponding notch, and the functional display structure is connected to the outer glass plate through the first adhesive layer and the crack isolation portion.

[0019] In one embodiment, the inner glass plate has no notch, and the functional display structure is connected to the fourth surface via the crack isolation portion.

[0020] In one embodiment, the notch is a closed through hole or a non-closed notch.

[0021] In one embodiment, the angle between the functional display structure and the fourth surface is 0-90°.

[0022] In one embodiment, the angle between the functional display structure and the fourth surface is 20-70°.

[0023] In one embodiment, the function display structure has a fifth surface and a sixth surface disposed opposite to each other, the fifth surface faces the second surface, and the distance between the sixth surface and the fourth surface is less than or equal to 10 mm.

[0024] In one embodiment, the crack isolation portion is at least one isolation hole opened on the inner glass plate, and the at least one isolation hole extends along the circumference of the functional display structure.

[0025] In one embodiment, the isolation holes are provided in at least two rows, and the isolation holes in two adjacent rows are staggered.

[0026] In one embodiment, at least one of the first surface, the second surface, the third surface, and the fourth surface is provided with a stress weakened area, the HIC value of the glass body provided with the stress weakened area is less than 1000, and the functional display structure at least partially overlaps with the stress weakened area.

[0027] In one embodiment, the shielding area further includes a top shielding area located above the light-transmitting area and side shielding areas located on both sides of the light-transmitting area, and visible light transmittance of the top shielding area and the side shielding areas is less than or equal to 5%.

[0028] A vehicle comprises the display window.

[0029] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG1 is a schematic diagram of the main structure of a display window according to an embodiment of the present application.

[0031] FIG2 is a schematic cross-sectional structural diagram of an embodiment of FIG1 taken along line AA.

[0032] FIG3 is a schematic cross-sectional structural diagram of another embodiment of FIG1 taken along line AA.

[0033] FIG4 is a schematic diagram of the main structure of a display window according to another embodiment of the present application.

[0034] FIG. 5 is a schematic cross-sectional structural diagram of an embodiment of FIG. 4 taken along line BB.

[0035] FIG. 6 is a schematic cross-sectional structural diagram of another embodiment of FIG. 4 taken along line BB.

[0036] FIG. 7 is a schematic cross-sectional structural diagram of another embodiment of FIG. 4 taken along line BB.

[0037] FIG8 is a schematic cross-sectional structural diagram of another embodiment of FIG4 taken along line BB.

[0038] FIG9 is a schematic diagram of the main structure of a display window according to another embodiment of the present application.

[0039] FIG10 is a schematic structural diagram of an embodiment of a crack isolation portion in the structure shown in FIG9 .

[0040] FIG11 is a schematic structural diagram of another embodiment of the crack isolation portion in the structure shown in FIG9 .

[0041] FIG12 is a schematic diagram of the main structure of a display window according to another embodiment of the present application.

[0042] FIG13 is a schematic cross-sectional structural diagram of an embodiment of FIG12 taken at CC.

[0043] FIG14 is a schematic cross-sectional structural diagram of another embodiment of FIG12 taken at CC.

[0044] FIG15 is a schematic cross-sectional structural diagram of another embodiment of FIG12 at CC.

[0045] FIG16 is a schematic cross-sectional structural diagram of another embodiment of FIG12 taken at CC.

[0046] 10. Glass body; 101. Light-transmitting area; 102. Shielding area; 1021. Bottom shielding area; 1022. Side shielding area; 1023. Top shielding area; 11. Outer glass plate; 111. First surface; 112. Second surface; 12. First adhesive layer; 13. Inner glass plate; 131. Third surface; 132. Fourth surface; 133. Notch; 134. Stress weakening area; 1341. Recess; 14. First light-blocking layer; 15. Second light-blocking layer; 16. Second adhesive layer; 20. Functional display structure; 21. Fifth surface; 22. Sixth surface; 30. Crack isolation part; 31. Isolation hole; 32. Adhesive; 40. Image light source. DETAILED DESCRIPTION

[0047] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0048] In order to overcome the shortcomings of traditional instrument panel displays, central control screen displays and head-up displays (HUDs), the present application is designed to display in the shielded area of ​​the front windshield, especially in the bottom shielded area between the vehicle's instrument panel and the light-transmitting area of ​​the front windshield, with the shielded area as the display background of the displayed image. The traditional shielded area is formed by printing with black opaque ceramic ink, so displaying in the shielded area is also called black-edge display. The content of the black-edge display can be driving information such as vehicle speed, engine speed, fuel consumption, tire pressure, dynamic navigation, night vision, real-life map, warning information, entertainment information, and external smart device input information. Compared with the traditional head-up display (HUD), the black-edge display can improve the contrast between the displayed image and the display background, so that the displayed content observed by the human eye is clear enough, and reduce the energy consumption of the display element. Compared with the traditional instrument panel display and central control screen display, the black-edge display can make the human eye's line of sight leave the road and turn the head less, which greatly improves driving safety.

[0049] Among them, in the event of a head-on collision between a pedestrian and a car, the pedestrian's head may hit the front windshield, which may cause serious or even fatal injuries to the pedestrian. The evaluation method and requirements of the pedestrian protection head injury standard (HIC) of laminated glass have been determined in standards / regulations such as C-NCAP2021, E-NCAP2021, and ECEUNR127. In order to reduce the damage to people when a car collides with pedestrians, etc., the front windshield needs to be properly broken to meet the requirements of various safety regulations. Accordingly, the front windshield will also break appropriately when subjected to internal impact to protect the people in the car. Whether it is cracked or shattered, cracks may enter the black-border display area of ​​the front windshield, causing the black-border display to be interfered with or even unable to be displayed, which may lead to information misjudgment or breed safety risks in an emergency.

[0050] Referring to Figures 1 to 3, Figure 1 shows a schematic diagram of the main structure of a display window according to one embodiment of the present application. Figure 2 shows a schematic diagram of the cross-sectional structure of one embodiment at AA in Figure 1. Figure 3 shows a schematic diagram of the cross-sectional structure of another embodiment at AA in Figure 1. A display window provided in one embodiment of the present application comprises: a glass body 10, a functional display structure 20, and a crack isolation portion 30. The glass body 10 is provided with a light-transmitting area 101 and a shielding area 102 arranged circumferentially around the light-transmitting area 101. The light-transmitting area 101 has a visible light transmittance greater than or equal to 70%. There is at least one functional display structure 20 and it is arranged in the shielding area 102. Optionally, the functional display structure 20 is used to display driving parameters, including vehicle speed, engine speed, fuel consumption, tire pressure, warning information, mileage, etc. It can also be used to display weather temperature, entertainment information, and can be used for dynamic navigation, night vision, real-life maps, etc. The crack isolation portion 30 is disposed between the glass body 10 and the functional display structure 20 , and the functional display structure 20 is connected to the glass body 10 via the crack isolation portion 30 .

[0051] The above-mentioned display window has a crack isolation portion 30 provided between the glass body 10 and the functional display structure 20. Therefore, when the glass body 10 encounters a strong impact and causes cracks, the crack isolation portion 30 acts as an isolation, thereby preventing the cracks from extending to the functional display structure 20. That is, no cracks can be observed on the functional display structure 20, thereby achieving stable and reliable display, reducing temporary potential secondary hazards, and improving safety and stability.

[0052] In one embodiment, the functional display structure 20 is arranged in the shielding area 102 of the glass body 10. The display window described in this application is taken as an example of a front windshield, and the shielding area 102 is an opaque area of ​​the front windshield. The functional display structure 20 can be an integrated structure, or it can be set as multiple and arranged separately from each other. For example, there are three functional display structures 20, and the three functional display structures 20 can all be arranged in the bottom shielding area near the instrument panel on the front windshield, or they can be arranged respectively in the bottom shielding area near the instrument panel, the side shielding area near the A-pillar, and the top shielding area near the interior rearview mirror.

[0053] Please refer to Figures 1 to 3. In one embodiment, the functional display structure 20 can be a projection display component, specifically including a reflective element, which cooperates with the image light source 40 to reflect the projection light of the image light source 40 to form a display image into the human eye.

[0054] When there are multiple functional display structures 20, a single image light source 40 can be used to emit multiple projection lights to different functional display structures 20; alternatively, multiple image light sources 40 can be used, each emitting projection lights to a corresponding functional display structure 20. Furthermore, the multiple displayed images can all be virtual images, all be real images, or a combination of both.

[0055] In another embodiment, the functional display structure 20 may also be a self-luminous display component, specifically including an image generating element that emits light and directly transmits the displayed image to the human eye. The image generating element includes, but is not limited to, a light-emitting panel, a thin-film transistor display (TFT), an organic light-emitting diode display (OLED), a liquid crystal on silicon (LCOS), a digital light processing display (DLP), a sub-millimeter light-emitting diode display (MiniLED), a micro light-emitting diode display (MicroLED), and the like.

[0056] In one embodiment, the multiple functional display structures 20 may also include both image generating elements and reflective elements, so that they can be self-luminous displays or can be projected displays in conjunction with the image light source 40 .

[0057] Optionally, the proportion of P-polarized light in the projection light emitted by the image light source 40 is 30% to 100%, so that it is suitable for use with polarized sunglasses to meet the needs of more driving scenarios.

[0058] In one embodiment, the shielding area 102 includes a bottom shielding area 1021 located below the light-transmitting area 101, and the functional display structure 20 is disposed in the bottom shielding area 1021. Optionally, the shielding area 102 also includes a top shielding area 1023 located above the light-transmitting area 101 and side shielding areas 1022 located on both sides of the light-transmitting area 101. The visible light transmittance of the top shielding area 1023 and the side shielding areas 1022 is less than or equal to 5%, more preferably less than or equal to 3%, and even more preferably less than or equal to 1%.

[0059] Referring to Figures 1 and 2, in one embodiment, a glass body 10 includes an outer glass plate 11, a first adhesive layer 12, and an inner glass plate 13, which are sequentially laminated and connected. The outer glass plate 11 has a first surface 111 and a second surface 112, which are disposed opposite each other. The inner glass plate 13 has a third surface 131 and a fourth surface 132, which are disposed opposite each other. The second surface 112 and the third surface 131 are disposed opposite each other. The glass body 10 also includes a first light-blocking layer 14 disposed in the bottom shielding area 1021. The first light-blocking layer 14 is located between the second surface 112 and the functional display structure 20. Specifically, the first light-blocking layer 14 can be disposed on the second surface 112, within the first adhesive layer 12, on the third surface 131, on the fourth surface 132, and / or on the surface of the functional display structure 20 facing the outer glass plate 11. The specific configuration and arrangement can be flexibly adjusted according to actual needs. The first light-blocking layer 14 can serve as a display background for displayed images, protecting the displayed images from interference from the brightness of the external environment and improving the display quality of the functional display structure 20.

[0060] The first adhesive layer 12 is sandwiched between the second surface 112 and the third surface 131, and is used to bond the outer glass panel 11 and the inner glass panel 13 together to form a laminated glass structure. The material of the first adhesive layer 12 can be, for example, polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), or ionomeric polymer film (SGP). Of course, the first adhesive layer 12 can also have other functions, such as providing at least one tinted area to serve as a shadow band to reduce sunlight interference to the human eye, or adding an infrared absorber to provide sun protection or heat insulation. It can also include at least two layers, one of which has a higher plasticizer content to provide sound insulation, or one of which is wedge-shaped to form a head-up display (HUD) function in the light-transmitting area 101.

[0061] In one embodiment, the glass body 10 further includes a second light-blocking layer 15 disposed in the bottom shielding region 1021. The second light-blocking layer 15 and the first light-blocking layer 14 are located on different surfaces. Specifically, for example, the second light-blocking layer 15 is located on the second surface 112, and the first light-blocking layer 14 is located within the first adhesive layer 12. Alternatively, the second light-blocking layer 15 is located within the first adhesive layer 12, and the first light-blocking layer 14 is located on the surface of the functional display structure 20 facing the outer glass plate 11. Another example is the first light-blocking layer 14 is located on the second surface 112, and the second light-blocking layer 15 is located on the fourth surface 132. The second light-blocking layer 15 can cooperate with the first light-blocking layer 14 to form the bottom shielding region 1021. The second light-blocking layer 15 and the first light-blocking layer 14 at least partially overlap in the thickness direction of the glass body 10, thereby achieving a more superior overall appearance.

[0062] In one embodiment, the visible light transmittance of the first light-blocking layer 14 is less than or equal to 5%, more preferably less than or equal to 3%, even more preferably less than or equal to 1%, or even less than or equal to 0.5%, or substantially 0%, i.e., substantially opaque to visible light. The first light-blocking layer 14 is a dark-colored printed layer or a dark-colored polymer film. The second light-blocking layer 15 can also be made of the same dark-colored printed layer or dark-colored polymer film as the first light-blocking layer 14.

[0063] The dark printing layer may be black or brown ceramic ink or ultraviolet ink, and may be printed on the second surface 112 , the third surface 131 or the fourth surface 132 by screen printing, inkjet printing or other processes.

[0064] In addition, the dark polymer film can be a polymer film with body coloring, for example, a coloring component is added during the manufacturing process of the polymer film to obtain black or brown PVB, PET, PVC, etc.; or a polymer film with surface printing pigments, for example, black or brown pigments are printed on the surface of the polymer film, etc.

[0065] In another embodiment, the first light blocking layer 14 is a dimming film, which may be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a liquid crystal film (LC), or the like.

[0066] In one embodiment, the minimum visible light transmittance of the dimming film is less than or equal to 5%, such as 3%, 2%, 1%, 0.5%, or 0%. In addition, the maximum visible light transmittance of the dimming film can be set as needed, such as 10%, 20%, 30%, 50%, 70%, or 80%.

[0067] For example, the visible light transmittance of the switchable film can be adjusted between 0% and 20%, or between 0.5% and 50%, or between 0% and 70%.

[0068] It meets the requirements of visible light transmittance in multiple scenarios. For example, when black border display is required, the dimming film is in an opaque state (visible light transmittance is less than or equal to 5%), which improves the contrast between the displayed image and the displayed background. When no display is performed, the dimming film is in a transparent state (visible light transmittance is greater than or equal to 70%), which makes a larger area of ​​the glass body 10 transparent.

[0069] Referring to Figures 1 to 3 or 4 to 8 , Figure 4 shows a schematic front view of a display window according to another embodiment of the present application, and Figures 5 to 8 show schematic cross-sectional views of several different embodiments of Figure 4 taken at point BB. In one embodiment, at least one notch 133 is defined in the inner glass panel 13, and a functional display structure 20 is disposed within the corresponding notch 133. The functional display structure 20 is connected to the outer glass panel 11 via a first adhesive layer 12, and the functional display structure 20 is connected to the inner glass panel 13 via a crack isolation portion 30. Specifically, the crack isolation portion 30 is disposed between the wall of the notch 133 and the outer perimeter of the functional display structure 20. This prevents cracks from propagating from the outer glass panel 11 to the functional display structure 20. Furthermore, since the functional display structure 20 is connected to the outer glass panel 11 via the first adhesive layer 12, the first adhesive layer 12 can securely connect the functional display structure 20 to the outer glass panel 11 while also preventing cracks from propagating from the outer glass panel 11 to the functional display structure 20.

[0070] Referring to Figures 1 to 3 , in one embodiment, the notch 133 is a closed through-hole. Thus, to isolate the inner glass plate 13 from the functional display structure 20, the crack isolation portion 30 is configured as a closed structure. This effectively embeds the functional display structure 20 within the glass body 10, achieving an integrated structure while effectively preventing cracks in the glass body 10 from extending to the functional display structure 20.

[0071] It should be noted that a closed through-hole means that, starting from a point on the closed through-hole and moving along the inner wall of the closed through-hole, one can eventually return to the starting point. Conversely, an open-ended notch means that, starting from a point on the wall of the open-ended notch and moving along the inner wall of the open-ended notch, one cannot return to the starting point.

[0072] The shapes of the closed through holes include, but are not limited to, regular shapes such as circles, ellipses, squares, pentagons, and other irregular shapes. In addition, the shapes of the non-closed notches include, but are not limited to, C-shapes, L-shapes, V-shapes, and the like.

[0073] Referring to Figures 4 to 8 , in another embodiment, the notch 133 is configured as a non-enclosed notch. Accordingly, the crack isolation portion 30 is configured as a non-enclosed structure, with both ends of the crack isolation portion 30 extending to the edge M of the glass body 10. The functional display structure 20 is located in the area enclosed by the crack isolation portion 30 and the edge M of the glass body 10. In this way, the non-enclosed structure can effectively separate the functional display structure 20 from the glass body 10, effectively preventing cracks in the glass body 10 from extending to the functional display structure 20.

[0074] Referring to Figures 12 and 13 , in one embodiment, at least one notch 133 is defined in the inner glass plate 13. A functional display structure 20 is disposed on the fourth surface 132 and covers the corresponding notch 133. The functional display structure 20 is connected to the outer glass plate 11 via a crack isolation portion 30 and a first adhesive layer 12. In this manner, the bonding force between the crack isolation portion 30 and the first adhesive layer 12 ensures a stable connection between the functional display structure 20 and the glass body 10, providing elastic support and preventing the functional display structure 20 from being suspended in the air during installation, which could cause displacement or tilting of the reflective surface. This ensures consistent optical reflection patterns across the entire glass surface. Specifically, the crack isolation portion 30 is disposed within the notch 133, with a gap between the circumferential outer contour of the crack isolation portion 30 and the wall of the notch 133. This gap is filled with adhesive 32, and the crack isolation portion 30 is securely attached to the interior of the notch 133 via the adhesive 32.

[0075] Please refer to Figures 2, 5, 13 or 16. In one embodiment, the functional display structure 20 has a fifth surface 21 and a sixth surface 22 arranged in opposite directions. The fifth surface 21 faces the fourth surface 132, and the sixth surface 22 faces away from the fourth surface 132. The distance between the sixth surface 22 and the fourth surface 132 is set to T, and T is less than or equal to 10mm. Specifically, T includes but is not limited to 0mm, 0.2mm, 0.5mm, 2mm, 5mm, 8mm, and 10mm. Among them, when T is 0, that is, the sixth surface 22 and the fourth surface 132 are flush with each other, which can improve the appearance of the product and is not easy to scratch the hand. On the contrary, when T is greater than 0, a stacked step is formed to meet the needs of different usage scenarios.

[0076] In one embodiment, the crack isolation portion 30 comprises a soft sealing material. When the soft sealing material connects the glass body 10 and the functional display structure 20, it not only provides a flexible connection, effectively isolating the cracks in the inner glass plate 13 from invading the functional display structure 20, but also provides a seal to prevent dust, rain, and foreign matter from entering. Specifically, the soft sealing material includes, but is not limited to, polyurethane (PU), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinyl butyral (PVB), ethylene propylene diene monomer (EPDM), and the like.

[0077] In one embodiment, the width of the crack isolation portion 30 is set to W. When the crack isolation portion 30 is located between the inner wall of the notch 133 and the circumferential outer contour of the functional display structure 20, the width W is the distance between the wall of the notch 133 of the inner glass plate 13 and the outer contour of the functional display structure 20. The width W is set to, for example, ≤30 mm, specifically 15 mm, 10 mm, 5 mm, 2.0 mm, 1.0 mm, or 0.5 mm, and can be flexibly adjusted and set to other values ​​according to actual needs.

[0078] It should be noted that the width W of the crack isolation portion 30 at different locations along its extension direction can be either uniform or non-uniform.

[0079] In one embodiment, the in-plane bending radius R of the crack isolation portion 30 should be as large as possible to reduce the probability of glass breakage during processing, and is generally set to ≥10 mm, for example, 20 mm, 50 mm, 100 mm, 500 mm, 1000 mm, 5000 mm, 10000 mm, etc.

[0080] The following specifically describes the function display structure 20 including a reflective element as an example.

[0081] In one embodiment, the functional display structure 20 includes a reflective element. The reflective element can be a single layer or a multi-layer structure. Taking a single-layer thin-film structure as an example, the thickness of the reflective element is generally approximately the thickness of the inner glass plate 13. The thickness of the reflective element is set to ≤ 2.5 mm, such as 2.0 mm, 1.0 mm, or 0.5 mm. The specific thickness can be flexibly adjusted and set according to actual needs.

[0082] In one embodiment, the material of the reflective element can be the same as that of the inner glass plate 13 or different from each other, and can be a single medium or a composite material.

[0083] It should be noted that the main reflective surface of the reflective element is used to reflect the projection light. The main reflective surface can be located inside the reflective element or on any surface of the reflective element, and can be specifically set according to actual conditions.

[0084] In one embodiment, the reflective element can be a single-layer structure or a multi-layer structure. Specific examples include a single piece of physically tempered glass, a single piece of chemically tempered glass, laminated glass, polycarbonate (PC), polymethyl methacrylate (PMMA), a transparent substrate or an opaque substrate deposited with a P-polarized light reflective coating, a multi-layer resin laminate, etc.

[0085] In one embodiment, the reflective element can be a polarization conversion composite layer that can realize the mutual conversion between P-polarized light and S-polarized light. Specific examples include a 1 / 2 wave plate, a stack of a 1 / 2 wave plate and a circularly polarized reflector, a 1 / 4 wave plate, and a stack of a 1 / 4 wave plate and a circularly polarized reflector.

[0086] In one embodiment, the reflective element is a composite layer with a holographic film, thereby achieving non-specular reflection and allowing for more flexible incident angle settings for the light source.

[0087] In some embodiments, the edge of the inner glass plate 13 near the crack isolation portion 30 is formed with chamfers or rounded edges, for example, through edge grinding, to prevent cracking. Similarly, the edge of the functional display structure 20 near the crack isolation portion 30 is also formed with chamfers or rounded edges.

[0088] In one embodiment, the first light blocking layer 14 may have an electric heating element on the side close to the interior of the vehicle, and the electric heating element includes but is not limited to metal wire, copper foil, printed silver paste, transparent conductive layer, etc., which is used to realize electric heating to defrost and defog the functional display structure 20.

[0089] In one embodiment, a transparent conductive layer is provided on the second surface 112 of the outer glass sheet 11. This transparent conductive layer provides heat insulation by reflecting infrared rays and can also provide heating by applying an electric current to the transparent conductive layer. The electric heating element and the transparent conductive layer are independent components and can have different input voltages, conductive contacts, and power densities.

[0090] Referring to Figures 9 to 11 , in one embodiment, the crack isolation portion 30 is, for example, at least one isolation hole 31 formed in the inner glass plate 13. The at least one isolation hole 31 extends circumferentially around the functional display structure 20. The functional display structure 20 and the inner glass plate 13 are made of the same material and form an integrated structure. Specifically, the crack isolation portion 30 includes multiple isolation holes 31 along its extension direction. This allows the isolation holes 31 to isolate the inner glass plate 13 from cracks, preventing the cracks from extending into the functional display structure 20. Specifically, the isolation holes 31 extend perpendicularly to the outer glass plate 11 through the third and fourth surfaces 131 and 132 of the inner glass plate 13.

[0091] In some embodiments, the isolation holes 31 are not limited in shape, and the basic shapes may be circular, waist-shaped, elliptical, square, rectangular, diamond, trapezoidal, etc., and combinations thereof.

[0092] In one embodiment, the isolation holes 31 are arranged in at least one row, and each row has a plurality of isolation holes 31 arranged at intervals.

[0093] The isolation holes 31 can be arranged in a single row, as shown in Figure 10. Alternatively, the isolation holes 31 can be arranged in at least two rows, as shown in Figure 11, with the isolation holes 31 in two adjacent rows staggered. Specifically, any isolation hole 31 in one row corresponds to the spacing between two isolation holes 31 in the other adjacent row, thereby improving the ability to prevent crack propagation.

[0094] Referring to Figures 12, 14, and 16, in one embodiment, the inner glass plate 13 does not have a notch 133, and the functional display structure 20 is connected to the fourth surface 132 via a crack isolation portion 30. Specifically, the crack isolation portion 30 not only connects and secures the functional display structure 20, but also prevents cracks from invading the inner glass plate 13 into the functional display structure 20.

[0095] Considering that the functional display structure 20 increases the overall thickness and strength of the corresponding part of the glass body 10, under the same conditions, the thicker the glass body 10, the higher the value of the pedestrian protection head injury index (HIC), which will bring negative effects.

[0096] In one embodiment, at least one of the first surface 111, the second surface 112, the third surface 131, and the fourth surface 132 is provided with a stress-weakened area 134. The HIC value of the glass body 10 provided with the stress-weakened area 134 is less than 1000, and the functional display structure 20 at least partially overlaps with the stress-weakened area 134. Optionally, the functional display structure 20 is disposed in the stress-weakened area 134. In this way, adding the stress-weakened area 134 to the glass body 10 can moderately reduce the overall strength, thereby facilitating pedestrian protection.

[0097] Referring to Figure 16 , in one embodiment, one or more recesses 1341 are provided on the surface of the outer glass sheet 11 and / or the inner glass sheet 13 corresponding to the stress-weakened area 134. The provision of recesses 1341 reduces the thickness of the glass at the stress-weakened area 134, thereby appropriately reducing the overall strength. Furthermore, the structure is simple and easy to manufacture.

[0098] Referring to Figure 16 , in one embodiment, laser etching is employed, for example, to form recesses 1341 of a certain depth on either side of the outer glass plate 11 or the inner glass plate 13. The specific shape of recesses 1341 is not limited and can be circular, waist-shaped, oval, square, rectangular, diamond, trapezoidal, or any combination thereof. Typical specifications for these shapes range from 0.5 mm to 30 mm. Recesses 1341 can be spaced apart or arranged continuously.

[0099] In one embodiment, hard abrasives such as sandpaper or polishing powder may be used to grind the glass surface to form micro cracks of a certain depth, with a roughness Ra generally less than 200 μm.

[0100] Referring to Figures 3, 7, or 15, in one embodiment, when the functional display structure 20 is configured as an active display structure, the angle between the display surface of the functional display structure 20 and the fourth surface 132 is 0 to 90 degrees. Specifically, the angle between the display surface of the functional display structure 20 and the fourth surface 132 is 20 to 70 degrees. This allows the display surface of the functional display structure 20 to face the human eye, making it easier to observe.

[0101] Please refer to FIG. 1 to FIG. 3 . In one embodiment, a vehicle includes the display window of any one of the above embodiments.

[0102] In the above-mentioned vehicle, since a crack isolation portion 30 is provided between the glass body 10 and the functional display structure 20, when the glass body 10 encounters a strong impact and causes cracks, the crack isolation portion 30 plays an isolation role, thereby preventing the cracks from extending to the functional display structure 20, that is, no cracks can be observed on the functional display structure 20, thereby achieving stable and reliable display, reducing temporary potential secondary hazards, and improving safety and stability.

[0103] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display window, comprising: A glass body, wherein the glass body is provided with a light-transmitting area and a shielding area arranged circumferentially around the light-transmitting area, and the visible light transmittance of the light-transmitting area is greater than or equal to 70%; a function display structure, wherein at least one function display structure is provided and is disposed in the shielding area; as well as A crack isolation portion is provided between the glass body and the functional display structure, and the functional display structure is connected to the glass body through the crack isolation portion.

2. The display window according to claim 1, wherein: The functional display structure comprises a reflective element and / or an image generating element.

3. The display window according to claim 1 or 2, wherein: The shielding area includes a bottom shielding area located below the light-transmitting area, and the functional display structure is arranged in the bottom shielding area.

4. The display window according to claim 3, wherein: The glass body includes an outer glass plate, a first adhesive layer and an inner glass plate stacked in sequence; the outer glass plate has a first surface and a second surface arranged opposite to each other, the inner glass plate has a third surface and a fourth surface arranged opposite to each other, and the second surface is arranged opposite to the third surface; the glass body also includes a first light blocking layer arranged in the bottom shielding area, and the first light blocking layer is located between the second surface and the functional display structure.

5. The display window according to claim 4, wherein: The visible light transmittance of the first light blocking layer is less than or equal to 5%, and the first light blocking layer is a dark printing layer or a dark polymer film.

6. The display window according to claim 4 or 5, wherein: The first light blocking layer is a dimming film, and the minimum visible light transmittance of the dimming film is less than or equal to 5%.

7. The display window according to any one of claims 4 to 6, wherein: At least one notch is formed on the inner glass plate, the functional display structure is disposed in the corresponding notch, the functional display structure is connected to the outer glass plate via the first adhesive layer, and the functional display structure is connected to the inner glass plate via the crack isolation portion.

8. The display window according to any one of claims 4 to 6, wherein: At least one notch is formed on the inner glass plate, the functional display structure is disposed on the fourth surface and covers the corresponding notch, and the functional display structure is connected to the outer glass plate through the first adhesive layer and the crack isolation portion.

9. The display window according to any one of claims 4 to 6, wherein: The inner glass plate has no notch, and the functional display structure is connected to the fourth surface via the crack isolation portion.

10. The display window according to claim 7 or 8, wherein: The notch is a closed through hole or a non-closed notch.

11. The display window according to any one of claims 7 to 9, wherein: The included angle between the functional display structure and the fourth surface is 0-90°.

12. The display window according to claim 8 or 9, wherein: The included angle between the functional display structure and the fourth surface is 20-70°.

13. The display window according to any one of claims 7 to 9, wherein: The function display structure has a fifth surface and a sixth surface that are arranged opposite to each other, the fifth surface faces the second surface, and the distance between the sixth surface and the fourth surface is less than or equal to 10 mm.

14. The display window according to any one of claims 4 to 13, wherein: The crack isolation portion is at least one isolation hole opened on the inner glass plate, and the at least one isolation hole extends along the circumference of the functional display structure.

15. The display window according to claim 14, wherein: The isolation holes are arranged in at least two rows, and the isolation holes in two adjacent rows are staggered.

16. The display window according to any one of claims 4 to 13, wherein: At least one of the first surface, the second surface, the third surface, and the fourth surface is provided with a stress weakened area, the HIC value of the glass body provided with the stress weakened area is less than 1000, and the functional display structure at least partially overlaps with the stress weakened area.

17. The display window according to any one of claims 3 to 16, wherein: The shielding area further includes a top shielding area located above the light-transmitting area and side shielding areas located on both sides of the light-transmitting area. The visible light transmittance of the top shielding area and the side shielding area is less than or equal to 5%.

18. A vehicle, comprising the display window according to any one of claims 1 to 17.

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