Black edge display glass and black edge display system

Abstract

The invention provides black edge display glass and a black edge display system. The black edge display glass is provided with a light-transmitting area, a shielding area and at least one first image display area; the first image display area has S light reflectivity Rs for S polarized light which is incident at an incidence angle of 64-75 degrees and has a wavelength in a range of 380-780 nm, and the S light reflectivity Rs is greater than or equal to 20%; the black edge display glass comprises outer glass, a bonding layer, a functional layer, a first shielding layer and inner glass, and the projection of the first shielding layer on the fourth surface is at least partially overlapped with the first image display area. According to the invention, the driving safety can be greatly improved, the display image is not interfered by ambient light, and the contrast ratio between the display image and the display background can be greatly improved; meanwhile, the color cast of the displayed image or the halo phenomenon generated at the edge of the image is eliminated, and the definition of the displayed image can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automotive glass, and in particular to a black-border display glass and a black-border display system. Background Art

[0002] With the development of intelligent vehicles, vehicle windows can be used as image display elements, allowing drivers to obtain key information such as road conditions and vehicle status without having to significantly shift their gaze, greatly improving driving safety. Examples include windshield head-up display systems (W-HUD) and augmented reality head-up display systems (AR-HUD) installed on traditional vehicles. Whether W-HUD or AR-HUD, the HUD image is displayed in the light-transmitting area of the windshield and is easily affected by the light in the driving environment. Especially in strong sunlight, the contrast between the HUD image and the display background decreases significantly, significantly reducing the clarity of the HUD image. Improving the clarity of the HUD image requires significantly increasing the brightness of the HUD image, which significantly increases the power consumption of the HUD system and is detrimental to the heat dissipation of the HUD system.

[0003] To improve vehicle thermal comfort, vehicle window glass is increasingly being equipped with heat-insulating features, such as a functional layer that reflects infrared rays. These layers, which typically include one or more metal layers, offer excellent heat-insulating properties but can also interfere with image display on the window glass, such as causing color casts or halos around image edges, thus affecting image clarity. Summary of the Invention

[0004] The embodiments of the present application provide a black-bordered display glass and a black-bordered display system, which can not only enable the black-bordered display glass to have functions such as heat insulation, but also reduce or even eliminate the interference of functional coatings on image display.

[0005] In a first aspect, the present application provides a black-bordered display glass, the black-bordered display glass comprising a light-transmitting area, a shielding area, and at least one first image display area, wherein the light-transmitting area has a visible light transmittance greater than or equal to 70%, the shielding area has a visible light transmittance less than or equal to 5%, and the shielding area includes a bottom shielding area located below the light-transmitting area;

[0006] The first image display area is located in the bottom shielding area, and the first image display area has an S light reflectivity Rs for S polarized light with a wavelength in the range of 380nm-780nm incident at an incident angle of 64° to 75°, and the S light reflectivity Rs is ≥20%;

[0007] The black-border display glass includes an outer piece of glass, an adhesive layer, a functional layer, a first shielding layer and an inner piece of glass. The outer piece of glass includes a first surface and a second surface arranged opposite to each other. The inner piece of glass includes a third surface and a fourth surface arranged opposite to each other. The adhesive layer connects the second surface and the third surface. The functional layer is arranged between the second surface and the third surface. The first shielding layer is located on the side of the functional layer away from the first surface. The projection of the first shielding layer on the fourth surface at least partially overlaps with the first image display area.

[0008] In a possible implementation, the black-bordered display glass further includes a second shielding layer, the second shielding layer is located between the outer glass and the functional layer, and the projection of the functional layer on the fourth surface at least partially overlaps with the first image display area.

[0009] In one possible embodiment, the shielding area also includes a left shielding area located on the left side of the light-transmitting area, a top shielding area located above the light-transmitting area, and a right shielding area located on the right side of the light-transmitting area. The first shielding layer covers at least the bottom shielding area, and the second shielding layer covers the left shielding area, the top shielding area, the right shielding area, and the bottom shielding area.

[0010] In one possible embodiment, the second shielding layer is arranged on the second surface, the functional layer is arranged on the second surface, and the functional layer covers at least part of the second shielding layer; the first shielding layer is arranged on the functional layer, or is clamped between the functional layer and the bonding layer, or is clamped between the bonding layer and the third surface, or is arranged on the third surface, or is arranged on the fourth surface.

[0011] In one possible embodiment, the second shielding layer is arranged on the second surface, or is clamped between the second surface and the bonding layer, or is clamped between the bonding layer and the functional layer, or is arranged on the functional layer; the functional layer is arranged on the third surface, the first shielding layer is arranged on the third surface, and the functional layer covers at least part of the first shielding layer.

[0012] In one possible embodiment, the black-bordered display glass has a top edge and a bottom edge, the first shielding layer located in the bottom shielding area has a first upper edge, and the distance between the first upper edge and the bottom edge is a first height H1; the second shielding layer located in the bottom shielding area has a second upper edge, and the distance between the second upper edge and the bottom edge is a second height H2, and the first height H1 is not equal to the second height H2.

[0013] In a possible implementation manner, a difference between the first height H1 and the second height H2 is L1≤50 mm, or L1≤30 mm, or L1≤20 mm, or 1 mm≤L1≤10 mm.

[0014] In a possible implementation, the image display area has a third upper edge, the distance between the third upper edge and the bottom edge is a third height H3, and the third height H3 is less than or equal to the minimum value of the first height H1 and the second height H2.

[0015] In a possible implementation manner, the first shielding layer located in the bottom shielding area has a first lower edge, and the second shielding layer located in the bottom shielding area has a second lower edge;

[0016] The first lower edge is flush with the bottom edge, and / or the second lower edge is flush with the bottom edge.

[0017] In a possible implementation, no S-polarized light enhancing reflective element is provided in the bottom shielding area, and the fourth surface in the first image display area directly reflects the incident S-polarized light.

[0018] In a possible implementation manner, an S-polarized light enhancing reflective element is provided in the bottom shielding area, and the S-polarized light enhancing reflective element is located on the fourth surface.

[0019] In one possible embodiment, the first shielding layer has a fifth surface facing the functional layer and a sixth surface facing away from the functional layer, and the surface roughness Ra of the sixth surface is 0.8μm≤Ra≤3.0μm, or 1.0μm≤Ra≤2.5μm, or 1.2μm≤Ra≤2.2μm.

[0020] In a possible implementation manner, the reflected color of the sixth surface has Lab values calculated according to CIE 1976: L=30-36, a=-2.6-3.4, and b=-3.8-2.2.

[0021] In a possible implementation manner, the reflection color of the fourth surface in the bottom shielding area is calculated according to CIE 1976, and the Lab value is L=23-29, a=-2.9-3.1, and b=-3.3-2.7.

[0022] In a possible implementation, the reflectivity of the first image display area to visible light incident at an incident angle of 0° to 8° is measured from the fourth surface side to be RL, and the RL satisfies 1.4%≤RL≤8%.

[0023] In a second aspect, the present application further provides a black-border display system, the black-border display system comprising a projection device and the black-border display glass as described above;

[0024] The projection device is used to emit a first projection light toward the black-bordered display glass. The first projection light is incident on the first image display area at an incident angle of 64° to 75°. The first projection light includes at least 80% S-polarized light.

[0025] In a possible implementation, the black-bordered display glass further has at least one second image display area, and the second image display area is located within the light-transmitting area;

[0026] The projection device is also used to emit a second projection light toward the black-bordered display glass, and the second projection light is incident on the second image display area at an incident angle of 55° to 75°; the second projection light includes at least 50% S-polarized light, or the second projection light includes at least 80% P-polarized light.

[0027] In a third aspect, the present application also provides a vehicle, comprising the black-bordered display glass or the black-bordered display system as described above.

[0028] The present application sets the first image display area in the bottom shielding area of the black-bordered display glass, that is, uses the bottom shielding area as the display background for the image display. This not only enables the driver to obtain key information such as road information and vehicle status without having to move his or her line of sight significantly, thereby greatly improving driving safety, but also prevents the displayed image from being interfered with by ambient light, thereby greatly improving the contrast between the displayed image and the display background. At the same time, by setting the first shielding layer on the side of the functional layer away from the first surface of the black-bordered display glass, interference of the functional layer with the first projection light is avoided, thereby eliminating the color cast of the displayed image or the halo phenomenon generated at the edge of the image, thereby improving the clarity of the displayed image. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural schematic diagram of a car provided in an embodiment of the present application;

[0030] Figure 2 It is along Figure 1 A schematic cross-sectional view of a partial structure of a black-border display system obtained by cutting along the cutting line AA shown;

[0031] Figure 3 This is a schematic diagram of the structure of the black-bordered display glass observed from inside a vehicle, provided by an embodiment of the present application;

[0032] Figure 4 It is along Figure 1A schematic cross-sectional view of a partial structure of the black-border display system of the first embodiment obtained by cutting along the cutting line AA shown;

[0033] Figure 5 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the first embodiment obtained by cutting along the cutting line AA shown;

[0034] Figure 6 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the first embodiment obtained by cutting along the cutting line AA shown;

[0035] Figure 7 It is along Figure 1 A schematic cross-sectional view of a partial structure of the black-border display system of the second embodiment obtained by cutting along the cutting line AA shown;

[0036] Figure 8 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the second embodiment obtained by cutting along the cutting line AA shown;

[0037] Figure 9 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the second embodiment obtained by cutting along the cutting line AA shown;

[0038] Figure 10 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the second embodiment obtained by cutting along the cutting line AA shown;

[0039] Figure 11 It is along Figure 1 A schematic cross-sectional view of a portion of the structure of the black-border display system of the third embodiment obtained by cutting along the cutting line AA is shown;

[0040] Figure 12 It is along Figure 1 Another schematic cross-sectional view of a portion of the structure of the black-border display system of the third embodiment obtained by cutting along the cutting line AA is shown;

[0041] Figure 13 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the third embodiment obtained by cutting along the cutting line AA shown;

[0042] Figure 14 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the third embodiment obtained by cutting along the cutting line AA shown;

[0043] Figure 15 It is along Figure 1 A schematic cross-sectional view of a portion of the structure of the black-border display system of the fourth embodiment obtained by cutting along the cutting line AA shown;

[0044] Figure 16 It is along Figure 1 Another schematic cross-sectional view of a portion of the structure of the black-border display system of the fourth embodiment obtained by cutting along the cutting line AA is shown;

[0045] Figure 17 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black-border display system of the fourth embodiment obtained by cutting along the cutting line AA is shown;

[0046] Figure 18 It is along Figure 1 The section line AA shown is another schematic cross-sectional view of a partial structure of the black-border display system according to the fourth embodiment. DETAILED DESCRIPTION

[0047] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0048] And / or: It is just a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0049] Multiple: refers to two or more than two.

[0050] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either directly connected or indirectly connected through an intermediary.

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. It should be noted that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] Embodiments of the present application provide black-bordered display glass and a black-bordered display system. The black-bordered display glass and the black-bordered display system can be used in vehicles, aircraft, and other transportation vehicles. The following description uses the black-bordered display glass and the black-bordered display system in an automobile as an example, where the black-bordered display glass serves as the front windshield of the automobile. However, it should be understood that the application is not limited to this.

[0053] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural diagram of a car 300 provided in an embodiment of the present application, Figure 2 It is along Figure 1 The section line AA shown is a schematic cross-sectional view of a portion of the structure of the black border display system 200 .

[0054] Automobile 300 may include a black-bordered display system 200 and a vehicle body sheet metal 310. Black-bordered display system 200 may include black-bordered display glass 100 and a projection device 210. Black-bordered display glass 100 is fixedly connected to vehicle body sheet metal 310. Black-bordered display glass 100 may be the front windshield of automobile 300. Projection device 210 is located inside automobile 300, near one side of the inner surface of black-bordered display glass 100. Projection device 210 is configured to emit a first projection light beam toward black-bordered display glass 100. The first projection light beam is reflected by black-bordered display glass 100 and enters the human eye, allowing the human eye to perceive a clear, ghost-free first display image located in front of black-bordered display glass 100. The first display image can be used to provide information to the driver, such as road information such as navigation routes and traffic signs, vehicle status information such as speed, fuel level, and engine status, and entertainment information such as music and radio.

[0055] In an embodiment of the present application, the first projection light emitted by the projection device 210 may include S-polarized light. The black-bordered display glass 100 is capable of reflecting S-polarized light to form a first display image. It is understood that the embodiments of the present application form the first display image by reflecting S-polarized light. This can achieve an S-light reflectivity of at least 20% more easily, with lower power consumption, and at lower production costs, utilizing the black-bordered display glass 100 itself or by providing an S-polarized light-enhancing reflective element, thereby forming a high-contrast, high-definition first display image. Compared to the embodiments of the present application, if P-polarized light reflective imaging technology is used, a high-contrast, high-definition display image cannot be achieved due to the low reflectivity of the black-bordered display glass 100 itself for P-polarized light. Furthermore, providing a P-polarized light-enhancing reflective element to achieve a P-light reflectivity of at least 20% requires higher production costs.

[0056] It should be noted that Figure 1 The purpose of the diagram is merely to schematically illustrate the connection between the black-border display system 200 and the vehicle body sheet metal 310 and is not intended to limit the connection positions, specific structures, or quantities of the individual components. In other embodiments of the present application, the vehicle 300 may include more or fewer components than shown, or may combine or separate certain components, or may have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0057] See also Figure 3 , Figure 3 This is a structural diagram of the black-bordered display glass 100 provided in an embodiment of the present application. For the convenience of illustration, the dotted line is used as the boundary, the shadowed area is the shielding area 20, the area surrounded by the shadow is the light-transmitting area 10, and the area within the shielding area 20 with a different shadow from the shielding area 20 is the first image display area 30. However, it should be noted that Figure 3 The division of the light-transmitting area 10 , the shielding area 20 and the first image display area 30 is merely an example, and does not represent the actual sizes of the light-transmitting area 10 , the shielding area 20 and the first image display area 30 .

[0058] For ease of description, the width of the black-bordered display glass 100 is defined as the X direction, the height of the black-bordered display glass 100 is defined as the Y direction, and the thickness of the black-bordered display glass 100 is defined as the Z direction. The X, Y, and Z directions are perpendicular to each other. It should be understood that the X direction is parallel or approximately parallel to the width of the vehicle 300, the positive direction of the Y axis is toward the roof, and the negative direction of the Y axis is toward the bottom.

[0059] The black-bordered display glass 100 has a light-transmitting area 10, a shielding area 20, and at least one first image display area 30. The visible light transmittance of the light-transmitting area 10 is greater than or equal to 70%, and the visible light transmittance of the shielding area 20 is less than or equal to 5%. The light-transmitting area 10 is located in the central area of the black-bordered display glass 100 and can be used to provide a field of view for the driver and passengers in the car to ensure driving safety. The shielding area 20 is connected to the periphery of the light-transmitting area 10 and can be used for shielding, protection, and enhancing the overall aesthetics. Preferably, the visible light transmittance of the shielding area 20 is less than or equal to 3%, more preferably less than or equal to 1%, further less than or equal to 0.5%, further less than or equal to 0.05%, or even almost equal to 0, that is, it is not light-transmitting.

[0060] The shielding area 20 includes a bottom shielding area 21, a top shielding area 22, a left shielding area 23, and a right shielding area 24. The top shielding area 22 and the bottom shielding area 21 are respectively located on opposite sides of the light-transmitting area 10. The bottom shielding area 21 is located below the light-transmitting area 10, that is, on the negative side of the Y-axis of the light-transmitting area 10. The top shielding area 22 is located above the light-transmitting area 10, that is, on the positive side of the Y-axis of the light-transmitting area 10. The left shielding area 23 and the right shielding area 24 are also respectively located on opposite sides of the light-transmitting area 10. The left shielding area 23 is located on the left side of the light-transmitting area 10, that is, on the negative side of the X-axis of the light-transmitting area 10. The right shielding area 24 is located on the right side of the light-transmitting area 10, that is, on the positive side of the X-axis of the light-transmitting area 10. The bottom shielding area 21 , the left shielding area 23 , the top shielding area 22 and the right shielding area 24 are connected end to end, surround the outer periphery of the light-transmitting area 10 , and form the shielding area 20 .

[0061] The first image display area 30 is located in the bottom shielding area 21. The first image display area 30 has an S light reflectivity Rs for S polarized light with a wavelength in the range of 380nm-780nm incident at an incident angle of 64° to 75°, and the S light reflectivity Rs is ≥ 20%. The number of the first image display area 30 can be one (e.g. Figure 3 As shown), there may also be multiple, such as two, three or more than four. The specific amount of the first image display area 30 can be designed according to actual needs. When the number of the first image display area 30 is multiple, the multiple first image display areas 30 can be spaced apart in the width direction of the black-border display glass 100 (the X direction shown in the figure). Alternatively, the multiple first image display areas 30 can also be spaced apart in the height direction of the black-border display glass 100 (the Y direction shown in the figure). Alternatively, the multiple first image display areas 30 can also be spaced apart in both the length direction and the width direction of the black-border display glass 100.

[0062] The first image display area 30 may only cover a portion of the bottom shielding area 21, for example, at least 30% of the area, or at least 40% of the area, or at least 50% of the area, or at least 60% of the area, or at least 70% of the area, or at least 80% of the area, or at least 90% of the area of the bottom shielding area 21, or even the entire bottom shielding area 21 to form a through-type panoramic display effect from A-pillar to A-pillar.

[0063] The present application also provides a black-bordered display system 200, comprising a projection device 210 and black-bordered display glass 100. The projection device 210 is configured to emit a first projection light beam toward the black-bordered display glass 100. The first projection light beam is incident on the first image display area 30 at an incident angle of 64° to 75°, and the first projection light beam comprises at least 80% S-polarized light. The first projection light beam forms a first display image in the first image display area 30, with the first display image having a bottom shielding area 21 as a display background. This not only enables the driver to obtain key information such as road information and vehicle status without significantly shifting their line of sight, thereby greatly improving driving safety, but also protects the displayed image from interference from ambient light, significantly increasing the contrast between the displayed image and the display background. Furthermore, by disposing the first shielding layer on the side of the functional layer facing away from the first surface of the black-bordered display glass, interference with the first projection light beam by the functional layer is avoided, thereby eliminating color cast or haloing at the edges of the displayed image, thereby improving the clarity of the displayed image. In which, the first projection light may include at least 85% S-polarized light and at most 15% P-polarized light, or include at least 90% S-polarized light and at most 10% P-polarized light, or include at least 95% S-polarized light and at most 5% P-polarized light, or even the first projection light is basically pure S-polarized light, that is, it almost does not include P-polarized light.

[0064] exist Figure 3 In the embodiment, the black-bordered display glass 100 further comprises at least one second image display area 70, which is located within the light-transmitting area 10. The projection device 210 is further configured to emit a second projection light beam toward the black-bordered display glass 100. The second projection light beam is incident upon the second image display area 70 at an angle of incidence of 55° to 75°. The second projection light beam comprises at least 50% S-polarized light, or the second projection light beam comprises at least 80% P-polarized light. The second projection light beam forms a second display image in the second image display area 70, with the light-transmitting area 10 serving as the display background. The virtual image distance (VID) of the second display image is greater than or equal to 5 meters, even greater than or equal to 7.5 meters, or even greater than or equal to 10 meters. The second display image can serve as an AR-HUD image, which will cover more lanes and provide richer navigation warning information. Its field of view (FOV) will be expanded, such as to 10°×5° or even 20°×5°, thereby increasing the area of the projection display area.

[0065] The structure of the black-border display glass 100 will be described in detail below through four specific embodiments.

[0066] First embodiment:

[0067] Please refer to Figure 2 The black-bordered display glass 100 may include a laminated glass 40, a functional layer 50, and a shielding structure 60. The functional layer 50 is connected to the laminated glass 40 and is located in the shielding area 20 and the light-transmitting area 10. The functional layer 50 is used to realize the heat insulation, ultraviolet light protection, electric heating, dimming, antenna and other functions of the black-bordered display glass 100. The shielding structure 60 is also connected to the laminated glass 40 and is located in the shielding area 20, that is, the area where the shielding structure 60 is located can form the shielding area 20. The area outside the shielding structure 60 can form the light-transmitting area 10. The shielding structure 60 can be used to shield the edge of the black-bordered display glass 100 and the internal vehicle-mounted components, etc., to enhance the aesthetics of the car 300. It can also be used to block ultraviolet rays and prevent aging of materials inside the car.

[0068] Laminated glass 40 may include an outer glass sheet 41, an adhesive layer 42, and an inner glass sheet 43. The outer glass sheet 41, adhesive layer 42, and inner glass sheet 43 are stacked sequentially in the thickness direction of the laminated glass 40. The outer glass sheet 41 is positioned closer to the exterior of the vehicle 300, while the inner glass sheet 43 is positioned closer to the interior of the vehicle 300. The outer glass sheet 41 may include a first surface 410 and a second surface 411 disposed opposite each other. The first surface 410 is the surface of the outer glass sheet 41 facing the exterior of the vehicle, while the second surface 411 is the surface of the outer glass sheet 41 facing the interior of the vehicle. The inner glass sheet 43 may include a third surface 431 and a fourth surface 430 disposed opposite each other. The third surface 431 is the surface of the inner glass sheet 43 facing the exterior, while the fourth surface 430 is the surface of the inner glass sheet 43 facing the interior of the vehicle. The adhesive layer 42 is connected between the second surface 411 of the outer glass sheet 41 and the third surface 431 of the inner glass sheet 43.

[0069] The outer glass 41 is transparent or tinted glass, has a thickness of 0.7 mm to 4 mm, and has a visible light transmittance greater than 70%. The inner glass 43 is transparent or tinted glass, has a thickness of 0.7 mm to 4 mm, and has a visible light transmittance greater than 70%. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80% to 95%; the total iron content (calculated as Fe2O3) of the tinted glass is 0.1% to 0.8%, even 0.1% to 0.5%, and the visible light transmittance of the tinted glass is 75% to 90%. For example, the outer glass 41 can be a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 89%, and the inner glass 43 can be a green glass with a thickness of 1.6 mm and a visible light transmittance of 83%, or a green glass with a thickness of 2.1 mm and a visible light transmittance of 80%.

[0070] The bonding layer 42 is a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the bonding layer 42 is 0.38mm to 2.28mm. For example, the thickness of the bonding layer 42 can be, but is not limited to, 0.38mm, or 0.76mm, or 1.14mm, or 1.52mm, or 1.9mm, or 2.28mm, or other values between 0.38mm and 2.28mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA) and ionomer (SGP). When the bonding layer 42 is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 80%. For example, the visible light transmittance of the bonding layer 42 can be, but is not limited to, 80%, 85%, 90%, 95%, etc. When the adhesive layer 42 is a colored thermoplastic polymer film, the visible light transmittance of the colored thermoplastic polymer film is greater than 70%. For example, the visible light transmittance of the adhesive layer 42 may be, but is not limited to, 75%, 80%, 85%, or 90%. The colored thermoplastic polymer film may be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film.

[0071] In this embodiment, the functional layer 50 is disposed between the second surface 411 and the third surface 431. Specifically, the functional layer 50 can be disposed on the second surface 411, or on the third surface 431, or between the second surface 411 and the adhesive layer 42, or within the adhesive layer 42, or between the adhesive layer 42 and the third surface 431.

[0072] Exemplarily, the functional layer 50 may be a heat-insulating layer. The heat-insulating layer enables the black-edged display glass 100 to have excellent heat-insulating properties, thereby improving the thermal comfort of the vehicle interior. The total solar transmittance (TTS) of the black-edged display glass 100 with the heat-insulating layer is less than or equal to 55%, preferably less than or equal to 50%, or even less than or equal to 45%. The lower the total solar transmittance, the better the heat-insulating properties of the black-edged display glass 100. The material of the heat-insulating layer may be one or more of a single silver nanocoating, a double silver nanocoating, a triple silver nanocoating, a quadruple silver nanocoating, an ITO (Indium tin oxide) nanocoating, an FTO (fluorine-doped tin oxide) nanocoating, and an infrared blocking microcoating.

[0073] For example, the functional layer 50 may be a UV-blocking coating. The UV-blocking coating can significantly reduce the UV transmittance of the black-bordered display glass 100, thereby reducing the harmful effects of UV radiation on human health and preventing the automotive interior from aging and fading in the short term. The UV-blocking coating can be prepared using a sol-gel method and then applied to the glass surface to form the UV-blocking coating.

[0074] For example, the functional layer 50 may be an electric heating element. The electric heating element includes a heating layer and at least two busbars, and the busbars are directly electrically connected to the heating layer. The heating layer may be a single silver electric heating coating, a double silver electric heating coating, a triple silver electric heating coating, a quadruple silver electric heating coating, a five silver electric heating coating, a TCO electric heating coating, a metal wire, a printed silver paste wire, a nano silver wire, a carbon fiber wire, a metal grid, or a graphene heating sheet. The electric heating element can make the black-bordered display glass 100 have a power of at least 400W / m 2 Heating power density.

[0075] For example, the functional layer 50 may be a dimming element, which may be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), or the like.

[0076] For example, the functional layer 50 may be an antenna element, which may be a V2X antenna, a 5G antenna, a GNSS antenna, a Bluetooth antenna, a WiFi antenna, an AM antenna, an FM antenna, etc., thereby enabling interaction between the vehicle's main control and the outside world, such as receiving radio broadcasts, 5G communications, V2X communications, and high-precision positioning services.

[0077] Please continue to refer to Figure 2 The shielding structure 60 may include a second shielding layer 61 and a first shielding layer 62. In the direction from the outer glass 41 to the inner glass 43 (Z direction in the figure), the second shielding layer 61, the functional layer 50 and the first shielding layer 62 are sequentially stacked and arranged between the outer glass 41 and the bonding layer 42. Specifically, the second shielding layer 61 is connected to the second surface 411 of the outer glass 41, and the second shielding layer 61 covers the left shielding area 23, the top shielding area 22, the right shielding area 24 and the bottom shielding area 21. The functional layer 50 covers at least the light-transmitting area 10 and the bottom shielding area 21, and part of the functional layer 50 is located on the second shielding layer 61 in the bottom shielding area 21. The first shielding layer 62 covers at least the bottom shielding area 21 and is connected to the surface of the functional layer 50 facing the inner glass 43.

[0078] The first shielding layer 62 is located on the side of the functional layer 50 facing away from the first surface 410. The projection of the first shielding layer 62 on the fourth surface 430 at least partially overlaps with the first image display area 30. The projection of the functional layer 50 on the fourth surface 430 at least partially overlaps with the first image display area 30. In the bottom shielding area 21, the functional layer 50 is located between the second shielding layer 61 and the first shielding layer 62, which can avoid interference of the functional layer 50 with the first display image and avoid the first display image from having color cast and halo problems (such as a red halo) when displayed, especially at the boundary between the first display image and the display background (i.e., the edge of the image) where there is high contrast. Color cast and halo problems not only affect the clarity and appearance of the first display image, but also affect the driver's ability to quickly and accurately obtain information, thereby affecting driving safety. Preferably, the projection of the first shielding layer 62 on the fourth surface 430 completely covers the first image display area 30, thereby better achieving high contrast and high clarity of the first display image.

[0079] The first shielding layer 62 may be a dark ink layer, an opaque polymer film, or a dimming film. The second shielding layer 61 may be a dark ink layer, an opaque polymer film, or a dimming film. The dark ink layer may be formed by printing ceramic ink or UV ink on the second surface 411 through a process such as screen printing or inkjet printing, followed by curing or high-temperature sintering. The opaque polymer film may be a polymer film with body coloring, such as by adding a black or brown coloring component during the manufacturing process of the polymer film; or a polymer film with surface printing ink or pigment, such as by printing black ink or brown pigment on the surface of the polymer film; or a dyed or colored polymer film, such as by coloring the polymer film with a black or brown dye. The material of the polymer film may be polyvinyl butyral (PVB), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polycarbonate (PC), polymethyl methacrylate (PMMA), or the like. Preferably, the thickness of the opaque polymer film is less than or equal to 0.3 mm, and specific examples include 0.3 mm, 0.25 mm, 0.2 mm, 0.15 mm, 0.1 mm, 0.08 mm, 0.05 mm, 0.02 mm, etc., so that the opaque polymer film has a smaller impact on the overall thickness of the laminated glass structure. It is more preferably less than or equal to 0.1 mm, and even more preferably less than or equal to 0.05 mm. The dimming film can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. The minimum visible light transmittance of the dimming film is less than or equal to 5%, for example, 3%, 2%, 1%, 0.5%, or 0%. In addition, the maximum visible light transmittance of the dimming film can be set as needed, for example, 10%, 20%, 30%, 50%, 70%, 80%, etc. For example, the visible light transmittance of the dimming film can be adjusted between 0% and 20%, between 0.5% and 50%, or between 0% and 70%. The dimming film can meet the visible light transmittance requirements 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%, or even 0%) to improve the contrast between the displayed image and the display background. When no display is required, the dimming film is in a transparent state (visible light transmittance is greater than or equal to 70%) to achieve transparency in a larger area of the black-border display glass 100.

[0080] The following will take the second shielding layer 61 and the first shielding layer 62 located in the bottom shielding area 21 as an example to describe the second shielding layer 61 and the first shielding layer 62 in detail. However, it should be understood that the second shielding layer 61 and the first shielding layer 62 can both be layer structures disposed around the periphery of the light-transmitting area 10, and are not limited to the illustration.

[0081] Please refer to Figure 2 、 Figure 4 、 Figure 5 and Figure 6 , Figure 4 It is along Figure 1 The section line AA shown is a schematic cross-sectional view of a partial structure of the black border display system 200 of the first embodiment. Figure 5 It is along Figure 1 Another cross-sectional schematic diagram of a portion of the structure of the black border display system 200 of the first embodiment obtained by cutting along the cutting line AA is shown. Figure 6 It is along Figure 1 The section line AA shown is another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the first embodiment.

[0082] The projection of the second shielding layer 61 on the fourth surface 430 overlaps with the projection of the first shielding layer 62 on the fourth surface 430, and an overlapping projection is formed. This overlapping projection covers the first image display area 30. The embodiment of the present application sets a double-layer shielding layer, that is, compared with the single-layer shielding layer in the related art, the embodiment of the present application adds an additional shielding layer, and both shielding layers cover the entire first image display area, so that when the first projection light is incident on the black-bordered display glass 100, it will first be reflected by the fourth surface 430 to form the first display image, and then partially blocked by the first shielding layer 62 and cannot reach the functional layer 50 or only a very small part reaches the functional layer 50, thereby avoiding the functional layer 50 from reflecting the first projection light, thereby reducing or eliminating the color cast and halo problems of the first display image.

[0083] The first shielding layer 62 has a fifth surface 622 facing the functional layer 50 and a sixth surface 623 facing away from the functional layer 50. The surface roughness Ra of the sixth surface 623 is 0.8 μm ≤ Ra ≤ 3.0 μm, or 1.0 μm ≤ Ra ≤ 2.5 μm, or 1.2 μm ≤ Ra ≤ 2.2 μm. The surface roughness can be measured using a portable surface roughness meter or similar equipment.

[0084] In the embodiments of the present application, by increasing the surface roughness of the first shielding layer 62, the first projection light is more likely to undergo diffuse reflection upon contact with the sixth surface 623. This means that the first projection light is scattered in multiple different directions rather than being concentrated along its original path. This reduces or even eliminates the halo effect in the first displayed image, improving the clarity of the first displayed image. Furthermore, the diffuse reflection from the sixth surface 623 effectively blocks the first projection light from reaching the functional layer 50, further avoiding color cast and halo issues caused by the first projection light irradiating the functional layer 50. This optimizes the display quality of the first displayed image, allowing the driver to more clearly receive image information while driving, and enhancing driving safety.

[0085] Among them, the reflected color of the sixth surface 623 is calculated according to CIE1976, and the Lab value is L=30~36, a=-2.6~3.4, b=-3.8~2.2, or L=31~35, a=-1.6~2.4, b=-2.8~1.2, or L=32~34, a=-0.6~1.4, b=-1.8~0.2, which is conducive to the bottom shielding area 21 serving as the black display background of the first display image, making the first display image appear brighter and the colors more pure and vivid.

[0086] The black-bordered display glass 100 has a left edge 103, a top edge 102, a right edge 104, and a bottom edge 101. The left edge 103 is the leftmost edge of the black-bordered display glass 100 in the X direction, the top edge 102 is the topmost edge of the black-bordered display glass 100 in the Y direction, the right edge 104 is the rightmost edge of the black-bordered display glass 100 in the X direction, and the bottom edge 101 is the bottommost edge of the black-bordered display glass 100 in the Y direction. The first shielding layer 62 located in the bottom shielding area 21 has a first upper edge 621 and a first lower edge 624. The first upper edge 621 is the topmost side of the first shielding layer 62 in the bottom shielding area 21 in the Y direction, and the first lower edge 624 is the bottommost side of the first shielding layer 62 in the bottom shielding area 21 in the Y direction. The second shielding layer 61 located in the bottom shielding area 21 has a second upper edge 611 and a second lower edge 612. The second upper edge 611 is the topmost side of the second shielding layer 61 in the bottom shielding area 21 in the Y direction, and the second lower edge 612 is the bottommost side of the second shielding layer 61 in the bottom shielding area 21 in the Y direction. The distance between first upper edge 621 and bottom edge 101 is a first height H1, and the distance between second upper edge 611 and bottom edge 101 is a second height H2. First height H1 and second height H2 are not equal, that is, first upper edge 621 and second upper edge 611 are not flush, thereby better preventing the first displayed image from being disturbed by ambient light. Preferably, the difference between first height H1 and second height H2 is L1 ≤ 50 mm, or L1 ≤ 45 mm, or L1 ≤ 40 mm, or L1 ≤ 35 mm, or L1 ≤ 30 mm, or L1 ≤ 25 mm, or L1 ≤ 20 mm, or L1 ≤ 15 mm, or 1 mm ≤ L1 ≤ 10 mm.

[0087] In this embodiment, the first height H1 and the second height H2 are not equal, and the shielding structure 60 may further include an extension portion 63. Figure 2 and Figure 4 As shown, the extension portion 63 is formed by the portion where the second upper edge 611 of the second shielding layer 61 exceeds the first upper edge 621 of the first shielding layer 62, that is, the second height H2 is greater than the first height H1. Figure 2 In the example, the third height H3 is smaller than the first height H1; Figure 4 In the example, the third height H3 is equal to the first height H1. Figure 5 and Figure 6 As shown, the extension portion 63 is formed by the portion where the first upper edge 621 of the first shielding layer 62 exceeds the second upper edge 611 of the second shielding layer 61, that is, the second height H2 is less than the first height H1. Figure 5 In the example, the third height H3 is smaller than the second height H2; Figure 6 In the embodiment, the third height H3 is equal to the second height H2. The projection of the extension portion 63 on the fourth surface 430 is offset from the overlapping projection described above. That is, the projection of the extension portion 63 on the fourth surface 430 is offset from the first image display area 30.

[0088] The first image display area 30 has a third upper edge 301. The distance between the third upper edge 301 and the bottom edge 101 is a third height H3. The third height H3 is less than or equal to the minimum of the first height H1 and the second height H2, thereby better preventing the first displayed image from being interfered with by light from the driving environment. In other words, when the first height H1 is greater than the second height H2, the third height H3 is less than or equal to the second height H2; when the first height H1 is less than the second height H2, the third height H3 is less than or equal to the first height H1.

[0089] The first shielding layer 62 located in the bottom shielding area 21 has a first lower edge 624, and the second shielding layer 61 located in the bottom shielding area 21 has a second lower edge 612. The first lower edge 624 is flush with the bottom edge 101, and / or the second lower edge 612 is flush with the bottom edge 101. Preferably, both the first lower edge 624 and the second lower edge 612 are flush with the bottom edge 101.

[0090] In the embodiment of the present application, no S-polarized light enhancing reflective element is provided in the bottom shielding area 21, and the fourth surface 430 in the first image display area 30 directly reflects the S-polarized light in the incident first projection light. The first image display area 30 (i.e., the fourth surface 430 in the first image display area 30) has an S-light reflectivity Rs for S-polarized light with a wavelength in the range of 380nm-780nm incident at an incident angle of 64° to 75°, and the S-light reflectivity Rs is ≥20%, thereby enabling the first image display area 30 to produce a high-definition, high-contrast first display image. Preferably, the S-light reflectivity Rs is ≥25%, or the S-light reflectivity Rs is ≥28%, or the S-light reflectivity Rs is ≥29%, or the S-light reflectivity Rs is ≥30%.

[0091] In some embodiments, S-polarized light is incident on the first image display area 30 at an incident angle of 67°, or at an incident angle of 68°, or at an incident angle of 69°, or at an incident angle of 70°.

[0092] In some other embodiments, an S-polarized light enhancing reflective element is provided in the bottom shielding area 21 and is located on the fourth surface 430. The S-polarized light enhancing reflective element is used to further improve the reflectivity of the first image display area 30 to S-polarized light. The first image display area 30 having the S-polarized light enhancing reflective element has an S-light reflectivity Rs for S-polarized light with a wavelength in the range of 380nm-780nm incident at an incident angle of 64° to 75°, and the S-light reflectivity Rs is ≥30%, thereby enabling the first image display area 30 to produce a high-definition, high-contrast first display image. Preferably, the S-light reflectivity Rs is ≥31%, or the S-light reflectivity Rs is ≥35%, or the S-light reflectivity Rs is ≥40%, or the S-light reflectivity Rs is ≥45%.

[0093] It is understandable that under direct sunlight, the bottom shielding area 21 may transmit light. This transmitted light will mix with the first display image, thereby weakening the brightness and contrast of the first display image, causing the first display image to appear gray, affecting the display effect. By providing a double-layer shielding layer, this embodiment can add an additional shielding layer compared to the single-layer shielding layer in the related art, thereby improving the overall shielding strength, shielding efficiency, and shielding quality of the shielding structure 60. This allows the first display image to have higher contrast and display brightness, making the first display image clearer, thereby significantly reducing the graying of the first display image. It is understandable that when light strikes the surface of an object, three main optical phenomena occur: reflection, absorption, and transmission. Objects of different colors have different reflection, absorption, and transmission characteristics for light, which mainly depends on the material and microstructure of the object's surface. For example, a black object appears black because it absorbs almost all visible light that strikes its surface and reflects very little light. This is because the molecular structure and electronic state within black objects cause most of the photon energy to be absorbed and converted into other forms of energy (such as heat), leaving only a small portion reflected back to the human eye. This is why black objects appear darker. When a pattern is displayed against a black background, the low reflectivity of the black background allows the pattern to reflect specific light, increasing the brightness difference between the two and making the pattern appear brighter. Furthermore, a black background free of stray light interference allows the reflected light from the pattern to be concentrated, resulting in purer and more vivid colors. Preferably, the reflected color of the fourth surface 430 of the bottom shielding area 21 is calculated according to CIE1976, and the Lab value is L=23~29, a=-2.9~3.1, b=-3.3~2.7, or L=24~28, a=-1.9~2.1, b=-2.3~1.7, or L=25~27, a=-0.9~1.1, b=-1.3~0.7, which is conducive to the bottom shielding area 21 serving as the black display background of the first display image, making the first display image appear brighter and the colors more pure and vivid.

[0094] To reduce the interference of the mirror reflection generated by the bottom shielding area 21 on the first displayed image, the present application sets a reflectivity RL of the first image display area 30 for visible light incident at an incident angle of 0° to 8°, measured from the side of the fourth surface 430. The reflectivity RL satisfies 1.4% ≤ RL ≤ 8%. The visible light reflectivity RL can be measured according to the ISO 9050 standard.

[0095] The black-bordered display glass 100 provided in an embodiment of the present application includes laminated glass 40, a functional layer 50, and a shielding structure 60. The laminated glass 40 includes an outer glass 41, an adhesive layer 42, and an inner glass 43, which are sequentially stacked. The shielding structure 60 includes a second shielding layer 61 and a first shielding layer 62. In the Z direction, the second shielding layer 61, the functional layer 50, and the first shielding layer 62 are sequentially stacked between the outer glass 41 and the adhesive layer 42. The surface roughness Ra of the sixth surface 623 of the first shielding layer 62 is 2.11 μm.

[0096] The embodiment of the present application measures the visible light reflectance of the first image display area and the reflected color of the fourth surface in the bottom shielding area respectively.

[0097] Visible light reflectivity of the first image display area: After preparing the black-bordered display glass 100 , the reflectivity RL of the first image display area to visible light incident at an incident angle of 0° to 8° is measured from the fourth surface side according to the standard ISO9050.

[0098] Reflected color of the fourth surface in the bottom shielded area: A black-bordered display glass 100 is prepared, and then the Lab value of the reflected color of the fourth surface in the bottom shielded area is measured and calculated according to the CIE Lab color model based on a D65 light source and a 10° viewing angle.

[0099] In order to increase the accuracy and reliability of the measurement results, this embodiment measures multiple batches of products. Except for the production time, all conditions in the production process of different batches remain consistent.

[0100] Table 1: Measurement results of black border display glass 100

[0101]

[0102] As can be seen from Table 1, the black-bordered display glass 100 provided in this embodiment of the present application has stable production quality, significantly improving production efficiency and product yield. Furthermore, the bottom shielded area of the black-bordered display glass 100 provided in this embodiment of the present application is closer to black, reducing light transmittance and the graying of the first displayed image. Furthermore, the absence of stray light interference significantly reduces color cast and haloing in the first displayed image, thereby improving the display quality of the black-bordered display system 200.

[0103] In this embodiment, the preparation process of the black-border display glass 100 may include at least the following steps:

[0104] The first step: providing outer glass 41 and inner glass 43.

[0105] Step 2: forming a second shielding layer 61 on the second surface 411 of the outer glass 41. For example, the second shielding layer 61 can be formed on the second surface 411 of the outer glass 41 by ink printing.

[0106] Step 3: forming a functional layer 50 on the second surface 411 of the outer glass 41, wherein the functional layer 50 covers the second shielding layer 61. For example, the functional layer 50 may be formed on the second surface 411 by deposition.

[0107] Step 4: forming a first shielding layer 62 on the surface of the functional layer 50 away from the second shielding layer 61. For example, the first shielding layer 62 can be formed on the surface of the functional layer 50 away from the second shielding layer 61 by ink printing.

[0108] Step 5: Lay the outer glass 41 formed with the second shielding layer 61 , the functional layer 50 and the first shielding layer 62 together with the adhesive layer 42 and the inner glass 43 to form the black-bordered display glass 100 .

[0109] In the present application, due to the shielding of the first shield 62 , there is no need to perform a film removal operation on the functional layer 50 in the bottom shielding area 21 , thereby reducing the complexity of the production process.

[0110] Second embodiment:

[0111] Please refer to Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , Figure 7 It is along Figure 1 The section line AA shown is a schematic cross-sectional view of a partial structure of the black border display system 200 of the second embodiment. Figure 8 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the second embodiment obtained by cutting along the cutting line AA is shown. Figure 9 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the second embodiment obtained by cutting along the cutting line AA is shown. Figure 10 It is along Figure 1 The section line AA shown is another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the second embodiment.

[0112] In this embodiment, the details common to the first embodiment are omitted. Unlike the first embodiment, a second shielding layer 61 and a functional layer 50 are sequentially stacked between the outer glass 41 and the adhesive layer 42, extending from the outer glass 41 toward the inner glass 43. Specifically, the second shielding layer 61 is attached to the second surface 411 of the outer glass 41. The functional layer 50 covers at least the light-transmitting area 10 and the bottom shielding area 21, with a portion of the functional layer 50 located on the second shielding layer 61 within the bottom shielding area 21. The first shielding layer 62 is attached to the third surface 431 of the inner glass 43. The following description of the black-bordered display glass 100 applies to the first embodiment, unless otherwise specified.

[0113] It can be understood that the black-bordered display glass 100 provided in this embodiment is also a double-layer shielding layer. Compared with the single-layer shielding layer in the related art, by adding an additional shielding layer, the overall shielding strength, shielding efficiency and shielding quality of the shielding structure 60 are improved, the graying degree of the first display image is greatly reduced, and the color cast and halo phenomenon of the first display image are weakened or even eliminated, so that the first display image has higher contrast and display brightness, and makes the first display image clearer.

[0114] In this embodiment, Figure 7 and Figure 8 The extension portion 63 is formed by the second upper edge 611 of the second shielding layer 61 exceeding the first upper edge 621 of the first shielding layer 62, that is, the second height H2 is greater than the first height H1. Figure 7 It is shown that the third height H3 is smaller than the first height H1 . Figure 8 It is shown that the third height H3 is equal to the first height H1. Figure 9 and Figure 10 The extension portion 63 is formed by the portion where the first upper edge 621 of the first shielding layer 62 exceeds the second upper edge 611 of the second shielding layer 61, that is, the second height H2 is less than the first height H1. Figure 9 It is shown that the third height H3 is smaller than the second height H2. Figure 10 It is shown that the third height H3 is equal to the second height H2.

[0115] In this embodiment, the preparation process of the black-border display glass 100 may include at least the following steps:

[0116] The first step: providing outer glass 41 and inner glass 43.

[0117] Step 2: forming a second shielding layer 61 on the second surface 411 of the outer glass 41. For example, the second shielding layer 61 can be formed on the second surface 411 of the outer glass 41 by ink printing.

[0118] Step 3: forming a functional layer 50 on the second surface 411 of the outer glass 41, wherein the functional layer 50 covers the second shielding layer 61. For example, the functional layer 50 may be formed on the second surface 411 by deposition.

[0119] Step 4: forming a first shielding layer 62 on the third surface 431 of the inner glass 43. For example, the first shielding layer 62 can be formed on the third surface 431 of the inner glass 43 by ink printing.

[0120] Step 5: Lay the outer glass 41 formed with the second shielding layer 61 , the functional layer 50 and the first shielding layer 62 together with the adhesive layer 42 and the inner glass 43 to form the black-bordered display glass 100 .

[0121] In the present application, due to the shielding of the first shield 62 , there is no need to perform a film removal operation on the functional layer 50 in the bottom shielding area 21 , thereby reducing the complexity of the production process.

[0122] Third embodiment:

[0123] Please refer to Figure 11 、 Figure 12 、 Figure 13 and Figure 14 , Figure 11 It is along Figure 1 The section line AA shown is a schematic cross-sectional view of a partial structure of the black border display system 200 of the third embodiment. Figure 12 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the third embodiment obtained by cutting along the cutting line AA is shown. Figure 13 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the third embodiment obtained by cutting along the cutting line AA is shown. Figure 14 It is along Figure 1 The section line AA shown is another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the third embodiment.

[0124] In this embodiment, the details common to the first embodiment are omitted. Unlike the first embodiment, the second shielding layer 61 is attached to the second surface 411 of the outer glass 41. In the direction from the outer glass 41 toward the inner glass 43, the functional layer 50 and the first shielding layer 62 are sequentially stacked and arranged between the adhesive layer 42 and the inner glass 43. Specifically, the first shielding layer 62 is attached to the third surface 431 of the inner glass 43. The functional layer 50 is attached between the first shielding layer 62 and the adhesive layer 42. The functional layer 50 covers at least the light-transmitting area 10 and the bottom shielding area 21, with a portion of the functional layer 50 located on the first shielding layer 62 within the bottom shielding area 21. Furthermore, the following description of the black-bordered display glass 100 is applicable to both the first and second embodiments above, unless otherwise specified.

[0125] It can be understood that the black-bordered display glass 100 provided in this embodiment is also a double-layer shielding layer. Compared with the single-layer shielding layer in the related art, by adding an additional shielding layer, the overall shielding strength, shielding efficiency and shielding quality of the shielding structure 60 are improved, the graying degree of the first display image is greatly reduced, and the color cast and halo phenomenon of the first display image are weakened or even eliminated, so that the first display image has higher contrast and display brightness, and makes the first display image clearer.

[0126] In this embodiment, Figure 11 and Figure 12 The extension portion 63 is formed by the second upper edge 611 of the second shielding layer 61 exceeding the first upper edge 621 of the first shielding layer 62, that is, the second height H2 is greater than the first height H1. Figure 11 It is shown that the third height H3 is smaller than the first height H1 . Figure 12 It is shown that the third height H3 is equal to the first height H1. Figure 13 and Figure 14 The extension portion 63 is formed by the portion where the first upper edge 621 of the first shielding layer 62 exceeds the second upper edge 611 of the second shielding layer 61, that is, the second height H2 is less than the first height H1. Figure 13 It is shown that the third height H3 is smaller than the second height H2. Figure 14 It is shown that the third height H3 is equal to the second height H2.

[0127] In this embodiment, the preparation process of the black-border display glass 100 may include at least the following steps:

[0128] The first step: providing outer glass 41 and inner glass 43.

[0129] Step 2: forming a second shielding layer 61 on the second surface 411 of the outer glass 41. For example, the second shielding layer 61 can be formed on the second surface 411 of the outer glass 41 by ink printing.

[0130] Step 3: forming a first shielding layer 62 on the third surface 431 of the inner glass 43. For example, the first shielding layer 62 can be formed on the third surface 431 of the inner glass 43 by ink printing.

[0131] Step 4: forming a functional layer 50 on the third surface 431 of the inner glass 43, wherein the functional layer 50 covers the first shielding layer 62. For example, the functional layer 50 may be formed on the third surface 431 by deposition.

[0132] Step 5: Lay the outer glass 41 formed with the second shielding layer 61 , the functional layer 50 and the first shielding layer 62 together with the adhesive layer 42 and the inner glass 43 to form the black-bordered display glass 100 .

[0133] In the present application, due to the shielding of the first shield 62 , there is no need to perform a film removal operation on the functional layer 50 in the bottom shielding area 21 , thereby reducing the complexity of the production process.

[0134] Fourth embodiment:

[0135] Please refer to Figure 15 、 Figure 16 、 Figure 17 and Figure 18 , Figure 15 It is along Figure 1 The section line AA shown is a schematic cross-sectional view of a partial structure of the black border display system 200 of the fourth embodiment. Figure 16 It is along Figure 1 Another cross-sectional schematic diagram of a portion of the structure of the black border display system 200 of the fourth embodiment obtained by cutting along the cutting line AA is shown. Figure 17 It is along Figure 1 Another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the fourth embodiment obtained by cutting along the cutting line AA is shown. Figure 18 It is along Figure 1 The section line AA shown is another cross-sectional schematic diagram of a partial structure of the black border display system 200 of the fourth embodiment.

[0136] In this embodiment, the details common to the first embodiment are omitted. Unlike the first embodiment, the second shielding layer 61, the functional layer 50, and the first shielding layer 62 are sequentially stacked between the adhesive layer 42 and the inner glass 43, in the direction from the outer glass 41 toward the inner glass 43. Specifically, the first shielding layer 62 is attached to the third surface 431 of the inner glass 43. The functional layer 50 is attached between the second shielding layer 61 and the first shielding layer 62. The functional layer 50 covers at least the light-transmitting area 10 and the bottom shielding area 21, with a portion of the functional layer 50 located on the first shielding layer 62 within the bottom shielding area 21. The second shielding layer 61 is attached to the surface of the functional layer 50 facing the outer glass 41. Furthermore, the following description of the black-bordered display glass 100 is applicable to the first, second, and third embodiments described above, unless otherwise specified.

[0137] It can be understood that the black-bordered display glass 100 provided in this embodiment is also a double-layer shielding layer. Compared with the single-layer shielding layer in the related art, by adding an additional shielding layer, the overall shielding strength, shielding efficiency and shielding quality of the shielding structure 60 are improved, the graying degree of the first display image is greatly reduced, and the color cast and halo phenomenon of the first display image are weakened or even eliminated, so that the first display image has higher contrast and display brightness, and makes the first display image clearer.

[0138] In this embodiment, Figure 15 and Figure 16 The extension portion 63 is formed by the second upper edge 611 of the second shielding layer 61 exceeding the first upper edge 621 of the first shielding layer 62, that is, the second height H2 is greater than the first height H1. Figure 15 It is shown that the third height H3 is smaller than the first height H1 . Figure 16 It is shown that the third height H3 is equal to the first height H1. Figure 17 and Figure 18 The extension portion 63 is formed by the portion where the first upper edge 621 of the first shielding layer 62 exceeds the second upper edge 611 of the second shielding layer 61, that is, the second height H2 is less than the first height H1. Figure 17 It is shown that the third height H3 is smaller than the second height H2. Figure 18 It is shown that the third height H3 is equal to the second height H2.

[0139] In this embodiment, the preparation process of the black-border display glass 100 may include at least the following steps:

[0140] The first step: providing outer glass 41 and inner glass 43.

[0141] Step 2: forming a first shielding layer 62 on the third surface 431 of the inner glass 43. For example, the first shielding layer 62 can be formed on the third surface 431 of the inner glass 43 by ink printing.

[0142] Step 3: forming a functional layer 50 on the third surface 431 of the inner glass 43, wherein the functional layer 50 covers the first shielding layer 62. For example, the functional layer 50 may be formed on the third surface 431 by deposition.

[0143] Step 4: forming a second shielding layer 61 on the surface of the functional layer 50 away from the first shielding layer 62. For example, the second shielding layer 61 can be formed on the surface of the functional layer 50 away from the first shielding layer 62 by ink printing.

[0144] Step 5: Lay the outer glass 41 formed with the second shielding layer 61 , the functional layer 50 and the first shielding layer 62 together with the adhesive layer 42 and the inner glass 43 to form the black-bordered display glass 100 .

[0145] In the present application, due to the shielding of the first shield 62 , there is no need to perform a film removal operation on the functional layer 50 in the bottom shielding area 21 , thereby reducing the complexity of the production process.

[0146] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A black-edged display glass, characterized in that: The black-bordered display glass comprises a light-transmitting area, a shielding area, and at least one first image display area, wherein the visible light transmittance of the light-transmitting area is greater than or equal to 70%, the visible light transmittance of the shielding area is less than or equal to 5%, and the shielding area includes a bottom shielding area located below the light-transmitting area; The first image display area is located in the bottom shielding area, and the first image display area has an S light reflectivity Rs for S polarized light with a wavelength in the range of 380nm-780nm incident at an incident angle of 64° to 75°, and the S light reflectivity Rs is ≥20%; The black-border display glass includes an outer piece of glass, an adhesive layer, a functional layer, a first shielding layer and an inner piece of glass. The outer piece of glass includes a first surface and a second surface arranged opposite to each other. The inner piece of glass includes a third surface and a fourth surface arranged opposite to each other. The adhesive layer connects the second surface and the third surface. The functional layer is arranged between the second surface and the third surface. The first shielding layer is located on the side of the functional layer away from the first surface. The projection of the first shielding layer on the fourth surface at least partially overlaps with the first image display area.

2. The black-bordered display glass according to claim 1, wherein: The black-bordered display glass further includes a second shielding layer, which is located between the outer glass and the functional layer. The projection of the functional layer on the fourth surface at least partially overlaps with the first image display area.

3. The black-bordered display glass according to claim 2, wherein: The shielding area also includes a left shielding area located on the left side of the light-transmitting area, a top shielding area located above the light-transmitting area, and a right shielding area located on the right side of the light-transmitting area. The first shielding layer covers at least the bottom shielding area, and the second shielding layer covers the left shielding area, the top shielding area, the right shielding area, and the bottom shielding area.

4. The black-bordered display glass according to claim 2, wherein: The second shielding layer is arranged on the second surface, the functional layer is arranged on the second surface, and the functional layer covers at least part of the second shielding layer; the first shielding layer is arranged on the functional layer, or clamped between the functional layer and the bonding layer, or clamped between the bonding layer and the third surface, or arranged on the third surface, or arranged on the fourth surface.

5. The black-bordered display glass according to claim 2, wherein: The second shielding layer is arranged on the second surface, or is clamped between the second surface and the bonding layer, or is clamped between the bonding layer and the functional layer, or is arranged on the functional layer; the functional layer is arranged on the third surface, the first shielding layer is arranged on the third surface, and the functional layer covers at least part of the first shielding layer.

6. The black-bordered display glass according to claim 2, wherein: The black-bordered display glass has a top edge and a bottom edge, the first shielding layer located in the bottom shielding area has a first upper edge, and the distance between the first upper edge and the bottom edge is a first height H1, the second shielding layer located in the bottom shielding area has a second upper edge, and the distance between the second upper edge and the bottom edge is a second height H2, and the first height H1 is not equal to the second height H2.

7. The black-bordered display glass according to claim 6, wherein: A difference between the first height H1 and the second height H2 is L1≤50 mm, or L1≤30 mm, or L1≤20 mm, or 1 mm≤L1≤10 mm.

8. The black-bordered display glass according to claim 6, wherein: The image display area has a third upper edge, and the distance between the third upper edge and the bottom edge is a third height H3. The third height H3 is less than or equal to the minimum value of the first height H1 and the second height H2.

9. The black-bordered display glass according to claim 6, wherein: The first shielding layer located in the bottom shielding area has a first lower edge, and the second shielding layer located in the bottom shielding area has a second lower edge; The first lower edge is flush with the bottom edge, and / or the second lower edge is flush with the bottom edge.

10. The black-bordered display glass according to claim 1, wherein: No S-polarized light enhancing reflective element is provided in the bottom shielding area, and the fourth surface in the first image display area directly reflects the incident S-polarized light.

11. The black-bordered display glass according to claim 1, wherein: An S-polarized light enhancing reflective element is provided in the bottom shielding area, and the S-polarized light enhancing reflective element is located on the fourth surface.

12. The black-bordered display glass according to claim 1, wherein: The first shielding layer has a fifth surface facing the functional layer and a sixth surface facing away from the functional layer. The surface roughness Ra of the sixth surface is 0.8 μm≤Ra≤3.0 μm, or 1.0 μm≤Ra≤2.5 μm, or 1.2 μm≤Ra≤2.2 μm.

13. The black-bordered display glass according to claim 12, wherein: The reflected color of the sixth surface has Lab values calculated according to CIE 1976: L=30-36, a=-2.6-3.4, and b=-3.8-2.

2.

14. The black-bordered display glass according to claim 1, wherein: The reflected color of the fourth surface in the bottom shielding area has Lab values calculated according to CIE 1976: L=23-29, a=-2.9-3.1, and b=-3.3-2.

7.

15. The black-bordered display glass according to claim 1, wherein: The reflectivity RL of the first image display area to visible light incident at an incident angle of 0° to 8° is measured from the side of the fourth surface, and the RL satisfies 1.4%≤RL≤8%.

16. A black border display system, characterized in that: The black-border display system comprises a projection device and the black-border display glass according to any one of claims 1 to 15; The projection device is used to emit a first projection light toward the black-bordered display glass. The first projection light is incident on the first image display area at an incident angle of 64° to 75°. The first projection light includes at least 80% S-polarized light.

17. The black border display system according to claim 16, wherein: The black-bordered display glass further has at least one second image display area, and the second image display area is located in the light-transmitting area; The projection device is also used to emit a second projection light toward the black-bordered display glass, and the second projection light is incident on the second image display area at an incident angle of 55° to 75°; the second projection light includes at least 50% S-polarized light, or the second projection light includes at least 80% P-polarized light.

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