Display glass, glass display system and transportation tool

Abstract

The invention provides display glass, a glass display system and a transportation tool. The display glass comprises outer glass, a middle connecting layer, inner glass, an S light reflecting layer, an S light conversion layer and a light adjusting structure. The display glass is provided with a semitransparent area; the S light reflecting layer is arranged on one side, deviating from the outer glass, of the inner glass and covers the semitransparent area; the S light conversion layer is arranged between the inner glass sheet and the outer glass sheet and covers the semitransparent area; the light adjusting structure covers the semitransparent area, at least part of the light adjusting structure is provided by at least one of the outer glass, the middle connecting layer, the inner glass, the S light reflecting layer and the S light conversion layer, and / or at least part of the light adjusting structure is arranged on at least one of the outer glass, the middle connecting layer, the inner glass, the S light reflecting layer and the S light conversion layer. According to the display glass, the glass display system and the transportation tool, reflection ghosting and transmission double images can be taken into account, and the permeability is enough.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transportation tools, in particular to a display glass, a glass display system and a transportation tool. BACKGROUND

[0002] Transportation tools are one of the important means of transportation for human beings. With the evolution of the era of intelligent network connection of automobiles, the automobile can provide various information to the driver, such as transportation tool information, road information, ADAS, social media information, etc. Generally, the automobile head-up display (HUD and ARHUD), instrument panel / center control screen / co-pilot display screen, glass black border display and the like and combinations thereof can be used to achieve multi-form, far and near multi-level display, thereby bringing more comfortable, safe, intelligent experience and rich information to the driver.

[0003] Among them, the black border display (Panoramic Head-up Display, PHUD) usually directly reflects the image source image into the human eye by using the front windshield glass (or containing a special reflection layer), and the opaque shielding layer in the glass interlayer, especially the black ink ceramic layer (commonly known as black border in the industry) is the background to improve the contrast and the display content is clear enough. The black border display is between the automobile instrument panel and the transparent area of the windshield glass. Compared with the traditional instrument panel display, the line of sight of the human eye can be less deviated from the road surface, which greatly improves the driving safety.

[0004] However, since the black border display area is adjacent to the central field of view, the human eye needs to adjust the line of sight height back and forth during driving, which is easy to cause visual fatigue, and even too much attention of the driver, affecting the driving safety. And the black border display area is opaque, which reduces the front view of the transportation tool, reduces the visual range and safety redundancy, and the lack of permeability makes some people feel depressed and the driving experience is not good. When the black border display area is made transparent, there will be the problem of ghost image affecting image display, the problem of transmission double image affecting observation of external information, and the problem of lack of permeability, resulting in dark car. SUMMARY

[0005] The present application provides a display glass with a semi-transparent display area and capable of considering the small reflection ghost image, transmission double image and sufficient permeability.

[0006] In one aspect, the present application provides a display glass, the display glass comprising a laminated glass, the laminated glass comprising an outer sheet glass, an intermediate connecting layer and an inner sheet glass which are sequentially stacked; The display glass further comprises an S light reflection layer, an S light conversion layer and a light adjusting structure. The display glass has a functional display area, and the functional display area has a translucent area; The S light reflection layer is arranged on a side of the inner sheet glass away from the outer sheet glass and covers the translucent area, and the S light reflection layer is used for reflecting S polarized light; The S light conversion layer is arranged between the inner sheet glass and the outer sheet glass and covers the translucent area, and the S light conversion layer is used for converting S polarized light into P polarized light; The light adjusting structure covers the translucent area and is used for adjusting the light transmittance of the translucent area, at least part of the light adjusting structure is provided by and / or arranged on at least one of the outer sheet glass, the intermediate connecting layer, the inner sheet glass, the S light reflection layer and the S light conversion layer.

[0007] In a possible implementation, the display glass has a visible light transmittance TLa1 in the translucent area that satisfies 40% @ 70°≤TLa1≤80% @ 70°; a ratio RR12 of a visible light reflectance RL1 of a reflection primary image in the translucent area to a visible light reflectance RL2 of a reflection ghost in the translucent area of the display glass≥40% @ 70°; and a ratio TT12 of a visible light transmittance TL1 of a transmission primary image in the translucent area to a visible light transmittance TL2 of a transmission secondary image in the translucent area of the display glass≥40% @ 70°.

[0008] In a possible implementation, the translucent area is outside a test area B after field-of-view reduction according to a national standard GB9656.

[0009] In a possible implementation, in a range of 65°-75° incident angles, a visible light reflectance RLs of S polarized light in the translucent area of the S light reflection layer is greater than a visible light reflectance RLp of P polarized light in the translucent area of the S light reflection layer; and / or the visible light reflectance RLs of S polarized light in the translucent area of the S light reflection layer satisfies 40% @ 70°≤RLs; and / or the visible light reflectance RLp of P polarized light in the translucent area of the S light reflection layer satisfies RLp≤20% @ 70°; and / or a ratio G of the visible light reflectance RLs of S polarized light in the translucent area of the S light reflection layer to the visible light reflectance RLp of P polarized light in the translucent area of the S light reflection layer≥3.

[0010] In a possible implementation, the S light reflection layer has a refractive index n≥1.7; and / or, a visible light reflectance deviation degree of S polarized light of the S light reflection layer ΔDs≤3% at 70°; and / or, a visible light reflectance deviation degree of P polarized light of the S light reflection layer ΔDp≤3% at 70°.

[0011] In a possible implementation, a material of the S light reflection layer comprises TiO2; and / or, a thickness Tc of the S light reflection layer satisfies: 10nm≤Tc≤150nm; and / or, the S light reflection layer is printed on an air side of the inner sheet glass.

[0012] In a possible implementation, a conversion rate ψs1 of S polarized light of the S light conversion layer in the semi-transparent area satisfies: 85%≤ψs1≤100%; and / or, a thickness t of the S light conversion layer satisfies: 2μm≤t≤200μm; and / or, a reflectivity of the S light conversion layer is ≤2%; and / or, the intermediate connecting layer comprises a first sub-intermediate connecting layer and a second sub-intermediate connecting layer, the S light conversion layer is located between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer, a ratio K of a thickness of the first sub-intermediate connecting layer to a thickness of the second sub-intermediate connecting layer satisfies: K≤1±0.5.

[0013] In a possible implementation, an internal transmittance τs of S polarized light of the S light conversion layer is greater than an internal transmittance τp of P polarized light of the S light conversion layer.

[0014] In a possible implementation, a visible light transmittance of the display glass in the semi-transparent area is uniform; or, a visible light transmittance of the display glass in the semi-transparent area gradually changes.

[0015] In a possible implementation, at least one of the outer sheet glass, the intermediate connecting layer, the inner sheet glass, the S light reflection layer, and the S light conversion layer has a coloration in the semi-transparent area to form the light adjusting structure; and / or, the display glass further comprises a coloration layer, the coloration layer is arranged on a surface of at least one of the outer sheet glass, the intermediate connecting layer, the inner sheet glass, the S light reflection layer, and the S light conversion layer, and the coloration layer forms the light adjusting structure; and / or, the display glass further comprises a light adjusting layer, a visible light transmittance of the light adjusting layer is adjustable, the light adjusting layer is arranged on a surface of at least one of the outer sheet glass, the intermediate connecting layer, the inner sheet glass, the S light reflection layer, and the S light conversion layer, and the light adjusting layer forms the light adjusting structure.

[0016] In a possible implementation, the display glass further comprises an electric heating element, at least part of the electric heating element is located in the functional display area.

[0017] In a possible implementation, the functional display area further comprises an opaque area, the opaque area is adjacent to the translucent area, and the visible light transmittance TLa2 of the display glass in the opaque area is lower than the visible light transmittance TLa1 of the display glass in the translucent area.

[0018] In a possible implementation, the visible light transmittance TLa2 of the display glass in the opaque area is ≤10% @ 70°, the visible light transmittance of the display glass in the opaque area is uniform, or the visible light transmittance of the display glass in the opaque area gradually increases in a direction of the opaque area pointing to the translucent area.

[0019] In a possible implementation, the S-polarized light reflecting layer covers the opaque area, and the S-polarized light visible light reflectance RLs2 of the S-polarized light reflecting layer in the opaque area is less than or equal to the S-polarized light visible light reflectance RLs of the S-polarized light reflecting layer in the translucent area.

[0020] In a possible implementation, the display glass further has a light-transmitting view area, and the light-transmitting view area is adjacent to the translucent area.

[0021] In a possible implementation, neither the S-polarized light reflecting layer nor the S-polarized light converting layer covers the light-transmitting view area; and the ratio Q of the total transmittance of the display glass in the translucent area to the visible light transmittance of the display glass in the light-transmitting view area satisfies: 0.5≤Q≤1.

[0022] In a possible implementation, the visible light transmittance TLa1 of the display glass in the translucent area is ≥70% @ 0°, the S-polarized light reflecting layer and the S-polarized light converting layer both cover the light-transmitting view area; the visible light transmittance TL0 of the laminated glass satisfies: 86% @ 0°≤TL0≤100% @ 0°; and / or, the vertical reflectance of the S-polarized light reflecting layer in the light-transmitting view area is ≤20%; and / or, the vertical field of view range VFOV of the functional display area is ≥1°; and / or, the S-polarized light visible light reflectance RLs3 of the S-polarized light reflecting layer in the light-transmitting view area is less than the S-polarized light visible light reflectance RLs of the S-polarized light reflecting layer in the translucent area.

[0023] In a possible implementation, the visible light transmittance TLa1 of the display glass in the translucent area is ≥70% @ 0°, the light-transmitting view area comprises a main view window and an information collection window, the S-polarized light reflecting layer and the S-polarized light converting layer both cover the main view window, and the S-polarized light reflecting layer and the S-polarized light converting layer do not cover the information collection window.

[0024] In a possible implementation, the display glass has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region, the light-transmitting visual field region includes a head-up display region, and the S light reflection layer and the S light conversion layer both cover the head-up display region.

[0025] In a possible implementation, a ratio RR12 of a visible light reflectance RL1 of a reflected primary image of the display glass in the head-up display region to a visible light reflectance RL2 of a reflected ghost image of the display glass in the head-up display region is greater than or equal to 40 in a range of 45°-75° incident angles; and / or, a ratio TT12 of a visible light transmittance TL1 of a transmitted primary image of the display glass in the head-up display region to a visible light transmittance TL2 of a transmitted secondary image of the display glass in the head-up display region is greater than or equal to 40 in the range of 45°-75° incident angles.

[0026] In a possible implementation, the display glass further includes a coating layer; the coating layer is arranged on a surface of a side of the inner sheet glass facing the outer sheet glass, and a shape of the inner sheet glass is a fixed wedge shape or a variable wedge shape; or the coating layer is arranged on a surface of a side of the outer sheet glass facing the inner sheet glass, and a shape of at least one of the inner sheet glass, the intermediate connecting layer, and the S light conversion layer is a fixed wedge shape or a variable wedge shape.

[0027] In a possible implementation, the light-transmitting visual field region includes a head-up display region, the S light conversion layer covers at least part of the head-up display region, and the S light reflection layer does not cover the light-transmitting visual field region.

[0028] In a possible implementation, a conversion rate ψs2 of S polarized light of the S light conversion layer in the head-up display region satisfies 95%≤ψs2≤100%.

[0029] In a possible implementation, at least one of the outer sheet glass, the intermediate connecting layer, and the inner sheet glass has a shape of a fixed wedge shape or a variable wedge shape in the head-up display region.

[0030] In a possible implementation, the display glass further includes a coating layer; the coating layer is arranged on a surface of a side of the inner sheet glass facing the outer sheet glass, and a shape of the inner sheet glass is a fixed wedge shape or a variable wedge shape; or the coating layer is arranged on a surface of a side of the outer sheet glass facing the inner sheet glass, and a shape of at least one of the inner sheet glass, the intermediate connecting layer, and the S light conversion layer is a fixed wedge shape or a variable wedge shape.

[0031] In another aspect, the application also provides a glass display system, comprising an image source and the display glass, wherein the image source emits light with a proportion of S-polarized light greater than or equal to 90% and less than or equal to 100%.

[0032] In another aspect, the application also provides a vehicle, comprising a main body assembly and the glass display system.

[0033] In a possible implementation, the main body assembly comprises a functional part close to the glass display system, wherein the functional part comprises at least one of an instrument panel, a steering wheel, and a body A-pillar, and the functional part is provided with a light absorbing part.

[0034] The functional display area of the display glass provided by the application comprises a translucent area, and image display can be performed through the translucent area. By providing the display glass with an S-light reflecting layer, the S-light reflecting layer is arranged on the side of the inner sheet glass away from the outer sheet glass and covers the translucent area. In this way, the S-polarized light on the side of the inner sheet glass away from the outer sheet glass is reflected by the S-light reflecting layer, the S-polarized light entering the laminated glass through the inner sheet glass can be reduced, and thus the reflected ghost of the display glass can be avoided, that is, the reflected ghost of the display glass can be weakened, and the image displayed by the translucent area is clearer. By providing the display glass with an S-light converting layer, the S-light converting layer is arranged between the inner sheet glass and the outer sheet glass and covers the translucent area. In this way, the S-polarized light entering the laminated glass is converted into P-polarized light by the S-light converting layer, and the S-polarized light in the laminated glass can be further reduced to reduce the reflected ghost. Since the laminated glass has a small reflection to P-light, the clarity of image display can be ensured. By providing the display glass with a light adjusting structure, the light adjusting structure can adjust the light transmittance of the translucent area to balance the good permeability and the weakening of transmitted double images of the translucent area. In addition, the combination of the S-light reflecting layer, the S-light converting layer, and the light adjusting structure can make the reflected ghost and the transmitted double image of the display glass small, and the permeability is sufficient, that is, the balance of the image display effect, the observation effect of the information outside the vehicle, and the driving experience effect of the display glass is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments.

[0036] Figure 1 A side structure schematic diagram of the display glass provided by the embodiments of the application; Figure 2 A cross-sectional schematic diagram of the display glass provided by the embodiments of the application; Figure 3 A front structure schematic diagram of the display glass provided by the embodiments of the application; Figure 4 Another front view of the display glass provided in an embodiment of this application; Figure 5 for Figure 2 The diagram shows the light path of the display glass. Figure 6 for Figure 2 The image shown is a simulated data graph of the glass in the translucent region TLa1; Figure 7 for Figure 2 The figure shown is a graph showing the relationship between RR12, TT12, TLa1 of the glass in the semi-transparent region and the visible light transmittance TL0 of the laminated glass. Figure 8 for Figure 2 The figure shown is a graph showing the relationship between the S-polarization conversion efficiency ψs of the S-polarization conversion layer and the RR12, TT12, TLa1 of the glass in the semi-transparent region. Figure 9 Another cross-sectional schematic diagram of the display glass provided in an embodiment of this application; Figure 10 Another cross-sectional schematic diagram of the display glass provided in the embodiments of this application; Figure 11 for Figure 10 The figure shown is a graph showing the relationship between the RR12, TT12, and TLa1 of the glass in the light-transmitting field of view and the visible light transmittance TL0 of the laminated glass. Figure 12 for Figure 10 The diagram shows a cross-sectional view of the display glass when the light-transmitting field of view includes the head-up display area. Figure 13 for Figure 12 The figure shows the data relationship between RR12, TT12, TLa1 of the display glass in the head-up display area and the S-polarization conversion rate ψs of the S-polarization conversion layer; Figure 14 Another cross-sectional schematic diagram of the display glass provided in the embodiments of this application; Figure 15 for Figure 14 The diagram shows the relationship between the RR12, TT12, and TLa1 values ​​of the display glass in the head-up display area and the visible light transmittance TL0 of the laminated glass.

[0037] Explanation of reference numerals in the attached figures: The display glass 100; the outer sheet glass 10; the intermediate connecting layer 20; the inner sheet glass 30; the S light reflection layer 40; the S light conversion layer 50; the first surface S1; the second surface S2; the third surface S3; the fourth surface S4; the functional display area 101; the semi-transparent area 110; the opaque area 112; the light-transmitting view area 102; the head-up display area 120; the black border protection area 103; the image source 60. DETAILED DESCRIPTION

[0038] The technical solutions provided by the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the embodiments described in the present application are only some of the embodiments, rather than all the embodiments. Based on the embodiments described in the present application, all the other embodiments obtained by those skilled in the art without creative effort fall within the protection scope of the present application.

[0039] In the present application, the phrase “embodiment” or “example” means that the specific features, structures or characteristics described can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0040] The terms “first”, “second”, etc. in the specification and claims of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion. For example: the assembly or device including one or more components is not limited to the listed one or more components, but can optionally include one or more components that are not listed but are inherent to the product exemplified, or should have one or more components based on the described function.

[0041] Please refer to Figure 1 and Figure 2 , Figure 1 a side structure schematic diagram of the display glass 100 provided by the embodiments of the present application, Figure 2 a cross-sectional schematic diagram of the display glass 100 provided by the embodiments of the present application. The display glass 100 includes a laminated glass. The laminated glass includes the outer sheet glass 10, the intermediate connecting layer 20 and the inner sheet glass 30 which are sequentially stacked. The display glass 100 further includes the S light reflection layer 40, the S light conversion layer 50 and the light adjusting structure.

[0042] The outer sheet glass 10, the intermediate connecting layer 20 and the inner sheet glass 30 are arranged in sequence along the thickness direction of the display glass 100. The thickness direction of the display glass 100 can be indicated by the Z axis in the drawings. The outer sheet glass 10 includes, but is not limited to, ordinary glass or tempered glass, and the inner sheet glass 30 includes, but is not limited to, ordinary glass or tempered glass, according to the mechanical properties of the glass. The outer sheet glass 10 includes, but is not limited to, colorless glass or colored glass, and the inner sheet glass 30 includes, but is not limited to, colorless glass or colored glass, according to the optical properties of the glass. The outer sheet glass 10, the intermediate connecting layer 20 and the inner sheet glass 30 all have light transmittance. The visible light transmittance of the outer sheet glass 10, the visible light transmittance of the intermediate connecting layer 20 and the visible light transmittance of the outer sheet glass 10 can be the same or different. In one possible embodiment, the visible light transmittance of the outer sheet glass 10 can be greater than 70%, the visible light transmittance of the intermediate connecting layer 20 can be greater than 70%, and the visible light transmittance of the outer sheet glass 10 can be greater than 70%. The thickness of the outer sheet glass 10 and the thickness of the inner sheet glass 30 can be the same or different. In one possible embodiment, the thickness of the outer sheet glass 10 can be within the range from 0.1 mm to 10 mm, and the thickness of the inner sheet glass 30 can be within the range from 0.1 mm to 10 mm. The outer sheet glass 10 includes a first surface S1 and a second surface S2 arranged opposite to each other, the inner sheet glass 30 includes a third surface S3 and a fourth surface S4 arranged opposite to each other, and the intermediate connecting layer 20 is connected between the second surface S2 and the third surface S3. The intermediate connecting layer 20 includes, but is not limited to, a polyvinyl butyral (PVB) film layer, an ethylene-vinyl acetate copolymer (EVA) film layer or an ion (SGP) film layer. The thickness of the intermediate connecting layer 20 and the thickness of the outer sheet glass 10 can be the same or different. The thickness of the intermediate connecting layer 20 and the thickness of the inner sheet glass 30 can be the same or different. In one possible embodiment, the thickness of the intermediate connecting layer 20 can be within the range from 0.3 mm to 1.5 mm.

[0043] Please refer to Figure 3 and Figure 4 , Figure 3 a front view of the display glass 100 provided in the embodiments of the present application, Figure 4Another front view of the display glass 100 is provided in the embodiments. The display glass 100 has a functional display area 101, which has a semi-transparent area 110. The functional display area 101 is used for image display. In one possible embodiment, the functional display area 101 can cover the entire area of the display glass 100, i.e. the display glass 100 only includes the functional display area 101. In another possible embodiment, the functional display area 101 can cover a part of the area of the display glass 100, i.e. the display glass 100 includes the functional display area 101 and an area other than the functional display area 101. The semi-transparent area 110 is a display area in the functional display area 101 with certain light transmittance. In one possible embodiment, the semi-transparent area 110 can cover the entire area of the functional display area 101, i.e. the functional display area 101 only includes the semi-transparent area 110. In another possible embodiment, the semi-transparent area 110 can cover a part of the area of the functional display area 101, i.e. the functional display area 101 includes the semi-transparent area 110 and a display area other than the semi-transparent area 110.

[0044] The S light reflecting layer 40 is arranged on the side of the inner sheet glass 30 away from the outer sheet glass 10 and covers the semi-transparent area 110. The S light reflecting layer 40 is used for reflecting S polarized light.

[0045] It can be understood that the S light reflecting layer 40 is arranged on the fourth surface S4 of the inner sheet glass 30. In one possible embodiment, the S light reflecting layer 40 can be directly formed on the fourth surface S4 of the inner sheet glass 30, including but not limited to one or more of printing process, spraying process, evaporation process, magnetron sputtering process, etc. In another possible embodiment, the S light reflecting layer 40 can be connected to the fourth surface S4 of the inner sheet glass 30, including but not limited to that the S light reflecting layer 40 is bonded to the fourth surface S4 of the inner sheet glass 30.

[0046] The S light reflecting layer 40 covers the entire semi-transparent area 110. In other words, the area of the S light reflecting layer 40 can be greater than or equal to the area of the semi-transparent area 110. The area described in the embodiments can be understood as the size in the plane formed in the length direction and the width direction of the display glass 100. The length direction of the display glass 100 can be referred to as the X-axis direction shown in the drawings, and the width direction of the display glass 100 can be referred to as the Y-axis direction shown in the drawings.

[0047] When the projection light is incident from the side of the inner pane glass 30 away from the outer pane glass 10, the S light reflection layer 40 can reflect the S polarized light in the projection light, preventing the S polarized light in the projection light from entering the interior of the laminated glass. The S light reflection layer 40 has light transmittance. In one possible embodiment, the S light reflection layer 40 can be a high S polarized light reflection transparent film. Alternatively, the S light reflection layer 40 can have a reflectivity of S polarized light greater than or equal to 40%, or the S light reflection layer 40 can have a reflectivity of S polarized light greater than or equal to 50%, or the S light reflection layer 40 can have a reflectivity of S polarized light greater than or equal to 60%, or the S light reflection layer 40 can have a reflectivity of S polarized light greater than or equal to 70%, or the S light reflection layer 40 can have a reflectivity of S polarized light greater than or equal to 80%. Alternatively, the S light reflection layer 40 can have a visible light transmittance greater than 70%, or the S light reflection layer 40 can have a visible light transmittance greater than 80%, or the S light reflection layer 40 can have a visible light transmittance greater than 90%. The visible light transmittance of the S light reflection layer 40 can be the same as or different from the visible light transmittance of the outer pane glass 10, the visible light transmittance of the intermediate connecting layer 20, and the visible light transmittance of the outer pane glass 10.

[0048] The S light conversion layer 50 is arranged between the inner pane glass 30 and the outer pane glass 10 and covers the translucent area 110, and the S light conversion layer 50 is configured to convert S polarized light into P polarized light.

[0049] Optionally, the S light conversion layer 50 is arranged between the intermediate connecting layer 20 and the inner sheet glass 30; or, the S light conversion layer 50 is arranged between the outer sheet glass 10 and the intermediate connecting layer 20; or, the intermediate connecting layer 20 comprises a first sub-intermediate connecting layer and a second sub-intermediate connecting layer arranged in a stack, and the S light conversion layer 50 is arranged between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer. When the S light conversion layer 50 is arranged between the intermediate connecting layer 20 and the inner sheet glass 30, the S light conversion layer 50 can be directly formed on the surface of the side of the intermediate connecting layer 20 facing the inner sheet glass 30 or directly formed on the third surface S3 of the inner sheet glass 30, and the forming technology includes one or more of liquid crystal / polymer complex technology, magnetic control orientation technology, vacuum coating technology, self-assembly / coating technology, etc.; or, the S light conversion layer 50 can be connected to the surface of the side of the intermediate connecting layer 20 facing the inner sheet glass 30 or connected to the third surface S3 of the inner sheet glass 30, and the connection mode includes but is not limited to bonding. When the S light conversion layer 50 is arranged between the outer sheet glass 10 and the intermediate connecting layer 20, the S light conversion layer 50 can be directly formed on the surface of the side of the intermediate connecting layer 20 facing the outer sheet glass 10 or directly formed on the second surface S2 of the outer sheet glass 10, and the forming technology includes one or more of liquid crystal / polymer complex technology, magnetic control orientation technology, vacuum coating technology, self-assembly / coating technology, etc.; or, the S light conversion layer 50 can be connected to the surface of the side of the intermediate connecting layer 20 facing the outer sheet glass 10 or connected to the second surface S2 of the outer sheet glass 10, and the connection mode includes but is not limited to bonding. When the S light conversion layer 50 is arranged between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer, the S light conversion layer 50 can be directly formed on the surface of the side of the first sub-intermediate connecting layer away from the second sub-intermediate connecting layer or directly formed on the surface of the side of the second sub-intermediate connecting layer away from the first sub-intermediate connecting layer, and the forming technology includes one or more of liquid crystal / polymer complex technology, magnetic control orientation technology, vacuum coating technology, self-assembly / coating technology, etc.; or, the S light conversion layer 50 can be connected to the surface of the side of the first sub-intermediate connecting layer away from the second sub-intermediate connecting layer or connected to the surface of the side of the second sub-intermediate connecting layer away from the first sub-intermediate connecting layer, and the connection mode includes but is not limited to bonding.

[0050] The S light conversion layer 50 can be a light conversion layer formed by polymer uniaxial extension, or a light conversion layer formed by polymer liquid crystal coating and ultraviolet curing, or a light conversion layer formed by 3 / 4 and 1 / 4 wavelength plate complex. In the embodiment of polymer liquid crystal coating, a coating liquid containing polymer liquid crystal and photopolymerization initiator is coated on an alignment treated support substrate, the liquid crystal is aligned after heating, and a half-wave layer with a specific slow axis direction is formed by ultraviolet irradiation and curing.

[0051] When the S light conversion layer 50 is arranged between the intermediate connecting layer 20 and the inner sheet glass 30, the refractive index of the S light conversion layer 50 can be equal to or close to the refractive index of the intermediate connecting layer 20 and the refractive index of the inner sheet glass 30. When the S light conversion layer 50 is arranged between the outer sheet glass 10 and the intermediate connecting layer 20, the refractive index of the S light conversion layer 50 can be equal to or close to the refractive index of the intermediate connecting layer 20 and the refractive index of the outer sheet glass 10. When the S light conversion layer 50 is arranged between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer, the refractive index of the S light conversion layer 50 can be equal to or close to the refractive index of the first sub-intermediate connecting layer and the refractive index of the second sub-intermediate connecting layer. In this way, the reflection ghost formed by the reflection of the image source light by the S light conversion layer 50 can be weakened, thereby facilitating the improvement of the clarity of the image display.

[0052] The S light conversion layer 50 covers the entire translucent region 110. In other words, the area of the S light conversion layer 50 can be greater than or equal to the area of the translucent region 110. The area of the S light conversion layer 50 can be the same as or different from the area of the S light reflection layer 40. The thickness of the S light conversion layer 50 can be the same as or different from the thickness of the S light reflection layer 40.

[0053] In a possible embodiment, the S light conversion layer 50 can be a half-wave plate. When normally incident light passes through, the phase difference between ordinary light (o light) and extraordinary light (e light) is equal to π or an odd multiple thereof, such a wafer is called a half-wave plate, simply referred to as a half-wave plate or a λ / 2 wave plate. The half-wave plate includes but is not limited to a polyimide (PI) based film half-wave plate, a liquid crystal polymer (LCP) film half-wave plate, an indium tin oxide (ITO) film half-wave plate, a quartz-based flexible film half-wave plate, a nanocomposite film half-wave plate (such as TiO2 / PI composite), a graphene / oxide composite film half-wave plate, an ultrathin dielectric metasurface half-wave plate, or a combination of 2 λ / 4 wave plates or any other form of wave plate combination, or a TN liquid crystal structure to form a half-wave plate effect (polarization rotation 90°). The half-wave plate can convert S polarized light to P polarized light. When the polarization direction of the light is θ=45° with respect to the fast axis, the polarization direction of the outgoing light is rotated by 2θ=90°, i.e. completely converted to S polarization, and the theoretical conversion rate is 100%. Due to the phase delay deviation (Δ =π+δ, δ is the deviation), when θ=45°, the conversion efficiency ψ≈1-δ 2 / 4, the phase deviation δ causes the conversion rate to decrease. In addition, factors such as the wide-band visible light spectrum, the film thickness, the incident angle deviation, the temperature drift caused by the environmental temperature, etc. will cause the actual polarization conversion efficiency to decrease. For example: the 400nm-700nm wide-band has a deviation from the center wavelength of 550nm, the average deviation δ avg ≈±0.1π, corresponding to ψ≈97.5%.

[0054] The S light conversion layer 50 has light transmittance. In one possible embodiment, the S light conversion layer 50 can be a high S polarization light conversion rate transparent film. Optionally, the S light conversion layer 50 can have a conversion rate for S polarized light greater than or equal to 70%, or the S light conversion layer 50 can have a conversion rate for S polarized light greater than or equal to 75%, or the S light conversion layer 50 can have a conversion rate for S polarized light greater than or equal to 80%, or the S light conversion layer 50 can have a conversion rate for S polarized light greater than or equal to 85%, or the S light conversion layer 50 can have a conversion rate for S polarized light greater than or equal to 90%. Optionally, the S light conversion layer 50 can have a visible light transmittance greater than 70%, or the S light conversion layer 50 can have a visible light transmittance greater than 80%, or the S light conversion layer 50 can have a visible light transmittance greater than 90%. The visible light transmittance of the S light conversion layer 50 can be the same as or different from the visible light transmittance of the outer sheet glass 10, the visible light transmittance of the intermediate connecting layer 20, the visible light transmittance of the outer sheet glass 10, the visible light transmittance of the S light reflection layer 40.

[0055] The light adjusting structure covers the translucent region 110 and is used to adjust the light transmittance of the translucent region 110. At least part of the light adjusting structure is provided by and / or arranged on at least one of the outer sheet glass 10, the intermediate connecting layer 20, the inner sheet glass 30, the S light reflection layer 40 and the S light conversion layer 50.

[0056] In one possible embodiment, the light adjusting structure is provided by at least one of the outer sheet glass 10, the intermediate connecting layer 20, the inner sheet glass 30, the S light reflection layer 40 and the S light conversion layer 50 and covers the translucent region 110. It can be understood that, in this embodiment, at least one of the outer sheet glass 10, the intermediate connecting layer 20, the inner sheet glass 30, the S light reflection layer 40 and the S light conversion layer 50 comprises the light adjusting structure.

[0057] In another possible embodiment, the light adjusting structure is provided on at least one of the outer pane 10, the intermediate connecting layer 20, the inner pane 30, the S light reflecting layer 40, and the S light converting layer 50 and covers the translucent region 110. In this embodiment, the light adjusting structure can be directly formed on the surface of at least one of the outer pane 10, the intermediate connecting layer 20, the inner pane 30, the S light reflecting layer 40, and the S light converting layer 50 by one or more of a printing process, a spraying process, an evaporation process, a magnetron sputtering process, or the like, or the light adjusting structure can be connected to the surface of at least one of the outer pane 10, the intermediate connecting layer 20, the inner pane 30, the S light reflecting layer 40, and the S light converting layer 50 by adhesion.

[0058] Preferably, the distance between the light adjusting structure and the inner pane 30 is less than or equal to the distance between the S light converting layer 50 and the inner pane 30. In this case, the light adjusting structure can be provided by at least one of the intermediate connecting layer 20, the inner pane 30, the S light reflecting layer 40, and the S light converting layer 50, or the light adjusting structure can be provided on at least one of the intermediate connecting layer 20, the inner pane 30, the S light reflecting layer 40, and the S light converting layer 50. This is advantageous for weakening the reflected ghost caused by the reflection of the image source light by the S light converting layer 50 and improving the clarity of the image display.

[0059] In this case, the light adjusting structure covers the entire translucent region 110. In other words, the area of the light adjusting structure can be greater than or equal to the area of the translucent region 110. The area of the light adjusting structure can be the same as or different from the area of the S light reflecting layer 40 and the area of the S light converting layer 50. The thickness of the light adjusting structure can be the same as or different from the thickness of the S light reflecting layer 40 and the thickness of the S light converting layer 50.

[0060] The light adjusting structure can change the light absorption performance of the display glass 100 to achieve light transmittance adjustment. In one possible embodiment, the light adjusting structure can also change the reflection performance of the display glass 100 for external light, including but not limited to reducing the intensity of the reflection of the external light by the display glass 100.

[0061] The functional display area 101 of the display glass 100 provided in the present application includes a translucent area 110, and image display can be performed through the translucent area 110. By providing the display glass 100 with an S light reflection layer 40, the S light reflection layer 40 is arranged on the side of the inner sheet glass 30 away from the outer sheet glass 10 and covers the translucent area 110, and thus the S polarized light on the side of the inner sheet glass 30 away from the outer sheet glass 10 is reflected by the S light reflection layer 40, which can reduce the S polarized light entering the laminated glass through the inner sheet glass 30, thereby avoiding the formation of reflection ghost after the S polarized light entering the laminated glass is reflected by the outer sheet glass 10, that is, the reflection ghost of the display glass 100 can be weakened, and the image displayed by the translucent area 110 is clearer. By providing the display glass 100 with an S light conversion layer 50, the S light conversion layer 50 is arranged between the inner sheet glass 30 and the outer sheet glass 10 and covers the translucent area 110, and thus the S polarized light entering the laminated glass is converted into P polarized light by the S light conversion layer 50, which can further reduce the S polarized light in the laminated glass to reduce the reflection ghost, and the reflection of P light by the laminated glass is small, so as to ensure the clarity of image display, and the S light conversion layer 50 can reduce the transmission double ghost caused by the transmission of external light, and the clarity of the image outside the vehicle can be further improved. By providing the display glass 100 with a light adjusting structure, the light adjusting structure can adjust the light transmittance of the translucent area 110, so that the translucent area 110 has good permeability to reduce the transmission double ghost and improve the clarity of observing the information outside the vehicle through the translucent area 110. In addition, the effects of the S light reflection layer 40, the S light conversion layer 50 and the light adjusting structure are related to each other, so that the reflection effect, transmission effect and permeability effect of the display glass 100 in the translucent area 110 can be considered.

[0062] As shown in Figure 5 In a possible implementation, the display glass 100 has a visible light transmittance TLa1 in the translucent area 110 that satisfies: 40% @ 70°≤TLa1≤80% @ 70°. The ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the translucent area 110 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the translucent area 110 is ≥40@70°. The ratio TT12 of the visible light transmittance TL1 of the transmission main image of the display glass 100 in the translucent area 110 to the visible light transmittance TL2 of the transmission double ghost of the display glass 100 in the translucent area 110 is ≥40@70°.

[0063] 40% @ 70° ≤ TLa1 ≤ 80% @ 70° means that the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110 is greater than or equal to 40% and less than or equal to 80% when the light is incident at an incident angle of 70°. Preferably, the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110 is ≥ 50% @ 70°. More preferably, the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110 is ≥ 60% @ 70°. By making 40% @ 70° ≤ TLa1 ≤ 80% @ 70°, that is, the semi-transparent area 110 has a certain see-through property, it is convenient for the driver and passengers to observe the information outside the vehicle through the semi-transparent area 110, and the more TLa1 increases, the clearer the information outside the vehicle observed through the semi-transparent area 110 is.

[0064] 40 @ 70° ≤ RR12 means that the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the semi-transparent area 110 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the semi-transparent area 110 is greater than or equal to 40:1 when the light is incident at an incident angle of 70°. Preferably, the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the semi-transparent area 110 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the semi-transparent area 110 is ≥ 50 @ 70°. More preferably, the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the semi-transparent area 110 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the semi-transparent area 110 is ≥ 70 @ 70°.

[0065] The reflection main image of the display glass 100 in the semi-transparent area 110 refers to the image formed by the light reflected by the S-light reflecting layer 40 on the fourth surface S4 of the inner sheet glass 30 into the human eye. The light path of the reflection main image can be shown in the reflection main image RL1 in the drawings. The reflection ghost of the display glass 100 in the semi-transparent area 110 refers to the image formed by the light entering the laminated glass through the refraction of the S-light reflecting layer 40 on the fourth surface S4 of the inner sheet glass 30, being reflected by the first surface S1 of the outer sheet glass 10, and then being refracted by the fourth surface S4 of the inner sheet glass 30 and the S-light reflecting layer 40 into the human eye. The light path of the reflection ghost can be shown in the reflection ghost RL2 in the drawings. It can be understood that the larger the reflection main image RL1 is, the brighter the main image is, and the lower the energy consumption of the optical system is, and the brightness requirement of the light source is correspondingly reduced, which is conducive to selecting a more conventional light source. The larger the ratio RR12 of the visible light reflectance RL1 of the reflection main image to the visible light reflectance RL2 of the reflection ghost is, the darker the reflection ghost is, and it is not easy to be observed, that is, the clearer the image display is.

[0066] 40@70°≤TT12is a ratio of the visible light transmittance TL1 of the transmitted primary image of the display glass 100 at the semi-transparent area 110 to the visible light transmittance TL2 of the transmitted secondary image of the display glass 100 at the semi-transparent area 110 when the light ray is incident at an incident angle of 70°. Preferably, the ratio TT12 of the visible light transmittance TL1 of the transmitted primary image of the display glass 100 at the semi-transparent area 110 to the visible light transmittance TL2 of the transmitted secondary image of the display glass 100 at the semi-transparent area 110 is ≥ 60@70°. More preferably, the ratio TT12 of the visible light transmittance TL1 of the transmitted primary image of the display glass 100 at the semi-transparent area 110 to the visible light transmittance TL2 of the transmitted secondary image of the display glass 100 at the semi-transparent area 110 is ≥ 80@70°.

[0067] The transmitted primary image of the display glass 100 at the semi-transparent area 110 refers to an image formed by the external light ray sequentially passing through the outer sheet glass 10, the S light conversion layer 50, the inner sheet glass 30, and the S light refraction layer and then entering the human eye. The light path of the transmitted primary image can be referred to the transmitted primary image TL1 shown in the drawings. The transmitted secondary image refers to an image formed by the external light ray sequentially passing through the outer sheet glass 10, the S light conversion layer 50, the inner sheet glass 30, and then being reflected by the S light refraction layer, and then being reflected by the first surface S1 of the outer sheet glass 10, and then sequentially passing through the S light conversion layer 50, the inner sheet glass 30, and the S light refraction layer and then entering the human eye. The light path of the transmitted secondary image can be referred to the transmitted secondary image TL2 shown in the drawings. It can be understood that the larger the ratio TT12 of the visible light transmittance TL1 of the transmitted primary image to the visible light transmittance TL2 of the transmitted secondary image, the darker the transmitted secondary image, and the clearer the information outside the vehicle.

[0068] In this application, @70° refers to the light ray being incident at an incident angle of 70°, and @0° refers to the light ray being incident at a perpendicular angle, which will not be repeated hereinafter.

[0069] The laminated glass is 2.1 mm outer sheet glass 10, 0.38 mm first sub-intermediate connecting layer, 0.38 mm second sub-intermediate connecting layer, and 2.1 mm inner sheet glass 30. At this time, the display glass 100 at the semi-transparent area 110 is 2.1 mm outer sheet glass 10, 0.38 mm first sub-intermediate connecting layer, S light conversion layer 50, 0.38 mm second sub-intermediate connecting layer, 2.1 mm inner sheet glass 30, and S light reflection layer 40. The visible light transmittance TL0 of the laminated glass can be adjusted as needed; the S light reflection layer 40 is a uniform transparent film layer, which can have different reflectivities for S polarized light and P polarized light, the S light conversion rate of the S light conversion layer 50 is 95%, and the light ray incident angle AOI = 70° is taken as an example, the following Table 1, Figure 6 and Figure 7 Table 1:

[0070] It can be seen from Table 1 and Figure 6 When the light is obliquely incident, the visible light transmittance of the laminated glass (without S light reflection layer 40 and S light conversion layer 50) decreases. When the light incident angle changes from AOI = 0° to AOI = 70°, the visible light transmittance of the laminated glass decreases from 60% to about 40%. Therefore, to achieve the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110 greater than or equal to 40% @ 70°, the visible light transmittance TL0 of the laminated glass needs to be about 60% or more, preferably, the visible light transmittance TL0 of the laminated glass is more than 70%.

[0071] It can be seen from Table 1 and Figure 7It can be seen that: (1) as the visible light transmittance TL0 of the laminated glass increases, the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110 increases, and TLa1 has an upper limit value, such as the maximum value of TLa1 in Example A is 49.6%, the maximum value of TLa1 in Example B is 54.5%, and the maximum value of TLa1 in Example C is 58.9%; that is, when the visible light reflectance RLp of the P-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110 is determined, the smaller the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110, the larger TLa1 is. (2) As TLa1 increases, the ratio RR12 of the visible light reflectance RL1 of the reflected primary image of the display glass 100 in the semi-transparent area 110 to the visible light reflectance RL2 of the reflected ghost image of the display glass 100 in the semi-transparent area 110, and the ratio TT12 of the visible light transmittance TL1 of the transmitted primary image of the display glass 100 in the semi-transparent area 110 to the visible light transmittance TL2 of the transmitted double image of the display glass 100 in the semi-transparent area 110 are both decreasing. (3) When TLa1 and RLp are determined (for example, TLa1 = 40% and RLp = 1.4%), the larger RLs is, the larger RR12 is. (4) In the above Examples A to D, by adjusting RLs, RLp and the parameters of the light adjusting structure, TLa1, RR12 and TT12 can all meet the target requirements. As can be seen from Examples D and E, under the condition of TLa1 ≥ 40%, the TT12 index is low, and the RR12 index is low, that is, the perspective and reflectivity of the display glass 100 in the semi-transparent area 110 are insufficient. (5) As can be seen from the above Comparative Example 1, when only the S-light reflecting layer 40 is provided and TLa1 ≥ 40% is met, RR12 cannot meet the target requirements, and TT12 is slightly low; as can be seen from the above Comparative Example 2, when only the S-light converting layer 50 is provided, the incident angle deviates from the Brewster angle (θB is about 57°) by a large margin, and the S-light converting layer 50 has a polarization conversion rate error, and when TLa1 ≥ 40% is met, RR12 cannot meet the target. (6) When AOI = 70°, TT12 can reach 50:1, 100:1 or even higher, which can greatly reduce the transmitted double image, making the field of view of the outside through the semi-transparent viewing more clear, and the situation at night more obvious.

[0072] In a possible implementation, the virtual image of the image displayed by the functional display area 101 is outside the test area B after the field of view reduction according to the national standard GB9656.

[0073] GB9656, A.4.2.3, defines the reduced test area B as the test area after deducting the following areas from the test area B satisfying A.4.2.1: a) the area specified in A.4.1.2 or A.4.1.3; b) any of the following situations proposed by the transport vehicle manufacturer: 1) any opaque area 112 located within the area bounded by T5, T1, T4, T4' (the line of symmetry of T4 on the outer surface of the glass with respect to the center plane of the transport vehicle); 2) the opaque area 112 bounded by T5, T1, T4, T4'. T4* and T4'* are parallel to T4 and T4' respectively and tangent to the opaque area 112. The two points where T4* and T4'* intersect with T5 should not exceed a range of 300mm with Tc (the intersection of the vehicle's center plane and the outer surface of the glass) as the center of symmetry, and the distance between the two points where T4* and T4'* intersect with T1 should not exceed 150mm; c) any opaque area 112 located within the range bounded by T9 (the intersection of a plane passing through V2, parallel to the Y-axis, below the horizontal plane, and at a 4° angle to the X-axis with the outer surface of the glass), T6, T7, and T8, or any opaque area 112 located within the range bounded by T9, T6, and the edge of the outer surface of the windshield when the intersection of T6 with T7 and T8 extends beyond the outer surface of the glass; d) any opaque area 112 located within the range bounded by T9, T6, and the edge of the outer surface of the windshield glass when the intersection of T6 with T7 and T8 extends beyond the outer surface of the glass; 10 Any opaque area 112 within the range bounded by (the intersection of the horizontal plane of V1 and the outer surface of the glass), T3, T7, and T9, and located within the area bounded by T 10 Any opaque area 112 within the range bounded by T3' (the line of symmetry of T3 about the center plane of the transport vehicle on the outer surface of the glass), T8, and T9; or when the intersection of T6 and T7, T8 extends beyond the outer surface of the glass, determined by T... 10 The area 112 within the range bounded by T1, T2', T9 and the outer edge of the windshield, and any opaque area 112 within the range bounded by T1, T2', T9 and the outer edge of the windshield; e) the area extending 25 mm inward from the edge of the outer surface of the windshield or 25 mm inward from the inner edge of the black border, must not enter the extended area A.

[0074] Optionally, the distance between the virtual image of the image displayed in the functional display area 101 and the functional display area 101 along the viewing direction is less than 0.6m. Preferably, the distance between the virtual image of the image displayed in the functional display area 101 and the functional display area 101 along the viewing direction is less than or equal to 0.3m. More preferably, the distance between the virtual image of the image displayed in the functional display area 101 and the functional display area 101 along the viewing direction is less than or equal to 0.2m.

[0075] In one possible implementation, the S-polarized light visible reflectance RLsof the S-polarized light reflective layer 40 at the semi-transparent region 110 is greater than the P-polarized light visible reflectance RLpof the S-polarized light reflective layer 40 at the semi-transparent region 110 in the incident angle range of 65°-75°; and / or, the S-polarized light visible reflectance of the S-polarized light reflective layer 40 at the semi-transparent region 110 satisfies: 40% @ 70°≤RLs≤100% @ 70°; and / or, the P-polarized light visible reflectance of the S-polarized light reflective layer 40 at the semi-transparent region 110 satisfies: 0≤RLp≤20% @ 70°; and / or, the ratio G of the S-polarized light visible reflectance RLsof the S-polarized light reflective layer 40 at the semi-transparent region 110 to the P-polarized light visible reflectance RLpof the S-polarized light reflective layer 40 at the semi-transparent region 110 is greater than or equal to 3.

[0076] Wherein, the black ink ceramic layer is sintered on the outer surface of the inner pane glass 30 of the laminated glass product, and the visible light (380nm-780nm) reflectance at normal incidence (the incident angle θ is within 8°) is approximately 0, which is determined by a spectrophotometer according to the standard GB9656, to confirm that the black ink ceramic layer has good absorption effect, then the sample is rotated to adjust the incident angle θ, and the visible reflectance RLsof the reflective layer to S-polarized light and the visible reflectance RLpof the reflective layer to P-polarized light are measured respectively. It can be understood that RLsand RLpare the reflectance of the S-polarized light reflective layer 40. In addition, the black ink ceramic layer sintered on the outer surface of the inner pane glass 30 of the laminated glass product can also be a black primer coated on the outer surface of the inner pane glass 30 of the laminated glass product, such as DV990.

[0077] The S-polarized light reflective layer 40 is mainly used to enhance the reflection of S-polarized light to display image information, and higher S-polarized light reflectance can enhance the brightness and recognition of the display content, while reducing the overall power consumption and cost of the display system. Since the laminated glass is inclined to the driver side, the incident angle of the image source light when it is incident on the functional display area 101 is usually in the range of 65-75°, and 70° is a typical incident angle.

[0078] Optionally, the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is greater than or equal to 1.5 times the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 in the 65°-75° incident angle range, or the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is greater than or equal to 2 times the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 in the 65°-75° incident angle range, or the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is greater than or equal to 3 times the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 in the 65°-75° incident angle range.

[0079] The S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is preferably greater. Optionally, the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is ≥40% @ 70°. Preferably, the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is ≥50% @ 70°. More preferably, the S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is ≥60% @ 70°.

[0080] The P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 is preferably smaller. Optionally, the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 is ≤20% @ 70°. Preferably, the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 is ≤10% @ 70°. More preferably, the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 is ≤5% @ 70°, or the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110 is ≤2% @ 70°.

[0081] The S-polarized light reflectance RLsof the S-polarized light reflector 40 in the semi-transparent region 110 is preferably much greater than the P-polarized light reflectance RLpof the S-polarized light reflector 40 in the semi-transparent region 110, i.e. the S-polarized light reflector 40 can achieve high reflection of S-polarized light and low reflection of P-polarized light, so that the total reflectance RLof the S-polarized light reflector 40 can be controlled in an appropriate range, thereby increasing the permeability and the visibility from outside of the functional display region 101.

[0082] In a possible embodiment, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is larger, the better. Preferably, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is ≥ 3, or, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is ≥ 5, or, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is ≥ 10, or, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is ≥ 30, or, the ratio G of the visible light reflectance of S-polarized light RLs of the S-light reflecting layer 40 at the semi-transparent region 110 to the visible light reflectance of P-polarized light RLp of the S-light reflecting layer 40 at the semi-transparent region 110 is ≥ 50.

[0083] In a possible implementation, the refractive index n of the S-light reflecting layer 40 is ≥ 1.7; and / or, the visible light reflectance deviation degree of S-polarized light of the S-light reflecting layer 40 is ≤ 3% @ 70°; and / or, the visible light reflectance deviation degree of P-polarized light of the S-light reflecting layer 40 is ≤ 3% @ 70°.

[0084] In a possible embodiment, the refractive index n of the S-light reflecting layer 40 is ≥ 1.7. Preferably, the refractive index n of the S-light reflecting layer 40 is ≥ 2.0. More preferably, the refractive index n of the S-light reflecting layer 40 is ≥ 2.2, or, the refractive index n of the S-light reflecting layer 40 is ≥ 2.4, or, the refractive index n of the S-light reflecting layer 40 is ≥ 2.6, or, the refractive index n of the S-light reflecting layer 40 is ≥ 3.

[0085] In a possible embodiment, the visible light reflectance deviation degree of S-polarized light of the S-light reflecting layer 40 is ≤ 3% @ 70°. Preferably, the visible light reflectance deviation degree of S-polarized light of the S-light reflecting layer 40 is ≤ 2% @ 70°. More preferably, the visible light reflectance deviation degree of S-polarized light of the S-light reflecting layer 40 is ≤ 1% @ 70°.

[0086] In one possible embodiment, the visible light reflectance deviation of the S-polarized light of the S-polarized light reflecting layer 40 is less than or equal to 3% at 70°. Preferably, the visible light reflectance deviation of the S-polarized light of the S-polarized light reflecting layer 40 is less than or equal to 2% at 70°. More preferably, the visible light reflectance deviation of the S-polarized light of the S-polarized light reflecting layer 40 is less than or equal to 1% at 70°.

[0087] The display color is usually mixed by RGB three primary colors, and the image reflected by the S-polarized light reflecting layer 40 is seen by the human eye. In order to avoid color deviation (such as red, blue, etc.) and facilitate the matching of the display color and the S-polarized light reflecting layer 40 for calibration display, the reflectance curve of the S-polarized light reflecting layer 40 should be linear as much as possible. The absolute value of the maximum deviation of the reflectance of each interval wave band (the interval wave band is 5 nm) in a given wave band range from the linear regression line of each interval wave band in the range is the reflectance deviation ΔD. Considering the conventional range of blue light / green light / red light wave band of the display screen and the higher display color gamut coverage range of the black border display system, the reflectance deviation ΔDs of the S-polarized light of the S-polarized light reflecting layer 40 in the range of 400 nm to 700 nm should be reduced at a typical incident angle of 70°. In addition, the stray light entering the functional display area 101 should be as little as possible and neutral in color, avoiding color abnormalities. Therefore, the reflectance RLp of the P-polarized light of the S-polarized light reflecting layer 40 in the range of 400 nm to 700 nm should be smaller, and the visible light reflectance deviation ΔDp of the P-polarized light of the S-polarized light reflecting layer 40 should be reduced at a typical incident angle of 70°. In short, by making the visible light reflectance deviation of the S-polarized light of the S-polarized light reflecting layer 40 less than or equal to 3% at 70°, the color deviation of the image display can be reduced. By making the visible light reflectance deviation of the P-polarized light of the S-polarized light reflecting layer 40 less than or equal to 3% at 70°, the color abnormality of the image display can be avoided.

[0088] The material of the S-polarized light reflecting layer 40 can include one or more of silicon nitride, silicon-metal-mixed nitride, aluminum nitride, gallium nitride, titanium nitride, tin oxide, manganese oxide, tungsten oxide, niobium oxide, bismuth oxide, titanium oxide, tin-zinc-mixed oxide, zirconium oxide, scandium oxide, yttrium oxide, tantalum oxide, lanthanum oxide, cerium oxide, tellurium oxide, aluminum oxide, silicon oxide, zinc oxide, indium oxide, or transition metal oxide.

[0089] In one possible embodiment, the S-polarized light reflecting layer 40 includes TiO2; and / or, the thickness Tc of the S-polarized light reflecting layer 40 satisfies: 10 nm≤Tc≤150 nm; and / or, the S-polarized light reflecting layer 40 is printed on the air side of the inner sheet glass 30.

[0090] In a possible embodiment, the S light reflection layer 40 comprises TiO2 and SiO2. The mass fraction of SiO2 can be less than the mass fraction of TiO2. Optionally, the S light reflection layer 40 comprises 98.4% of TiO2 and 0.85% of SiO2. In this embodiment, the S light reflection layer 40 can be formed by screen printing and high-temperature sintering of mirror ink. The mirror ink is printed on the air surface of the inner sheet glass 30 according to a specific position and pattern. After high-temperature sintering at 550-690°C, the mirror ink is firmly attached to the glass surface. The mirror ink has a mirror high reflection effect and a transparent visual effect after sintering, and also has good hardness and wear resistance characteristics. The single-side visible light reflectivity of the S light reflection layer 40 on the laminated glass is shown in Table 2. At an incident angle of 70°, the S and P polarized light reflectivity curves in the 400-700 nm wave band change linearly and approximately flat. Table 2:

[0091] In a possible embodiment, the thickness Tc of the S light reflection layer 40 satisfies: 10 nm≤Tc≤150 nm. Preferably, the thickness Tc of the S light reflection layer 40 satisfies: 25 nm≤Tc≤100 nm. More preferably, the thickness Tc of the S light reflection layer 40 satisfies: 35 nm≤Tc≤55 nm. The smaller the thickness Tc of the S light reflection layer 40, the more conducive to reducing the transmission light distortion at the film layer boundary of the S light reflection layer 40, and the less visual discomfort.

[0092] In a possible embodiment, the S light reflection layer 40 is printed on the air surface of the inner sheet glass 30. The air surface of the inner sheet glass 30 is the surface of the inner sheet glass 30 in contact with air, which is the fourth surface S4 of the inner sheet glass 30 in this embodiment. The third surface S3 of the inner sheet glass 30 is the tin surface of the inner sheet glass 30. Optionally, the S light reflection layer 40 is ink printed on the fourth surface S4 of the inner sheet glass 30 by a screen printing process. By printing the S light reflection layer 40 on the air surface of the inner sheet glass 30, the S light reflection layer 40 can be prevented from being reduced to titanium suboxide by reducing substances and showing yellow.

[0093] In a possible embodiment, the conversion rate ψs1 of the S light conversion layer 50 to S polarized light satisfies: 85%≤ψs1≤100%; and / or, the thickness t of the S light conversion layer 50 satisfies: 2 μm≤t≤200 μm; and / or, the reflectivity of the S light conversion layer 50 is ≤2%; and / or, the intermediate connecting layer 20 comprises a first sub-intermediate connecting layer and a second sub-intermediate connecting layer, the S light conversion layer 50 is located between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer, and the ratio K of the thickness of the first sub-intermediate connecting layer to the thickness of the second sub-intermediate connecting layer satisfies: K≤1±0.5.

[0094] In one possible embodiment, the S light conversion layer 50 has a conversion rate of S polarized light ψs1≥ 85%. Preferably, the S light conversion layer 50 has a conversion rate of S polarized light ψs1≥ 90%. More preferably, the S light conversion layer 50 has a conversion rate of S polarized light ψs1≥ 98%, or the S light conversion layer 50 has a conversion rate of S polarized light ψs1≥ 99%. The higher the conversion rate of S polarized light ψs1of the S light conversion layer 50, the dimmer the reflected ghost image, and the clearer the image display of the semi-transparent region 110.

[0095] In one possible embodiment, the thickness t of the S light conversion layer 50 satisfies: 2 μm≤ t≤ 200 μm. Alternatively, the thickness t of the S light conversion layer 50 can be 5 μm, or the thickness t of the S light conversion layer 50 can be 10 μm, or the thickness t of the S light conversion layer 50 can be 50 μm, or the thickness t of the S light conversion layer 50 can be 75 μm, or the thickness t of the S light conversion layer 50 can be 100 μm.

[0096] In one possible embodiment, the reflectivity of the S light conversion layer 50 is ≤ 2%. It can be understood that the S light conversion layer 50 is preferably made of low-reflective material. The S light conversion layer 50 can have a similar refractive index as the intermediate connecting layer 20. Preferably, the reflectivity of the S light conversion layer 50 is ≤ 1%. More preferably, the reflectivity of the S light conversion layer 50 is ≤ 0.5%. By making the reflectivity of the S light conversion layer 50 ≤ 2%, the reflected ghost image caused by the S light conversion layer 50 itself can be reduced, so that the reflected ghost image of the semi-transparent region 110 is dimmer.

[0097] In one possible embodiment, the ratio RR13of the visible light reflectivity RL1of the reflected main image of the display glass 100 at the semi-transparent region 110 to the visible light reflectivity RL3of the reflected ghost image of the S light conversion layer 50 at the semi-transparent region 110 is ≥ 40: 1. Preferably, the ratio RR13of the visible light reflectivity RL1of the reflected main image of the display glass 100 at the semi-transparent region 110 to the visible light reflectivity RL3of the reflected ghost image of the S light conversion layer 50 at the semi-transparent region 110 is ≥ 80: 1. More preferably, the ratio RR13of the visible light reflectivity RL1of the reflected main image of the display glass 100 at the semi-transparent region 110 to the visible light reflectivity RL3of the reflected ghost image of the S light conversion layer 50 at the semi-transparent region 110 is ≥ 100: 1.

[0098] In one possible embodiment, the intermediate connecting layer 20 includes a first sub-intermediate connecting layer and a second sub-intermediate connecting layer, with the S-light conversion layer 50 located between the first and second sub-intermediate connecting layers. By positioning the S-light conversion layer 50 between the first and second sub-intermediate connecting layers, the impact resistance of the display glass 100 can be improved, and the durability of the S-light conversion layer 50 against ultraviolet light can be enhanced. Optionally, the thickness ratio K of the first sub-intermediate connecting layer to the second sub-intermediate connecting layer satisfies: K ≤ 1 ± 0.5. In other words, the thickness of the first sub-intermediate connecting layer is the same as or similar to the thickness of the second sub-intermediate connecting layer. In one possible embodiment, the first and second sub-intermediate connecting layers can be designed as connecting layers of the same material and equal thickness. For example, both the first and second sub-intermediate connecting layers can be 0.38 mm PVB film layers. By ensuring that the thickness ratio K of the first sub-intermediate connecting layer to the second sub-intermediate connecting layer satisfies K≤1±0.5, the uneven deformation of the S-ray conversion layer 50 during the high-temperature and high-pressure environment of the glass lamination process can be avoided, preventing multiple reflection ghosting in the S-ray conversion layer 50. Preferably, the thickness ratio K of the first sub-intermediate connecting layer to the second sub-intermediate connecting layer is ≤1±0.2. More preferably, the thickness ratio K of the first sub-intermediate connecting layer to the second sub-intermediate connecting layer is ≤1±0.1.

[0099] To understand the relationships between the various indicators, simulations were performed using different conversion rates ψs based on Example B in Table 1, as shown in Table 3 below. Figure 8 Table 3:

[0100] From Table 3 and Figure 8 As can be seen, (1) the S-polarization conversion efficiency ψs of the S-polarization conversion layer 50 increases, and both RR12 and TT12 increase. Therefore, to achieve higher RR12 and TT12, a higher conversion efficiency ψs can be used. Taking Example B4 as an example, its TLa1 is about 42%, and the corresponding ψs at 85% can satisfy TT12 and RR12 to be above 40:1. (2) At the same ψs, as TL0 increases, both RR12 and TT12 decrease. That is, the higher the transparency of the laminated glass, the lower RR12 and TT12, which means that the reflection ghost and transmission double image are more obvious. As TL0 decreases, the TLa1 of Examples B1, B2, and B3 is less than 40%. It can be seen that in order to meet the multiple objectives of TLa1, RR12, and TT12, the vertical transmittance TL0 of the laminated glass needs to be selected within a reasonable range.

[0101] In one possible implementation, the internal transmittance τs of the S-polarized light conversion layer 50 to S-polarized light is greater than the internal transmittance τp of the S-polarized light conversion layer 50 to P-polarized light.

[0102] In one possible embodiment, the internal transmittance of S-polarized light τs of the S light conversion layer 50 is greater than the internal transmittance of P-polarized light τp of the S light conversion layer 50. Optionally, the thickness of the S light conversion layer 50 is 0.1 mm, the internal transmittance of S-polarized light τs of the S light conversion layer 50 is about 98% for an incident angle of 66°, and the internal transmittance of P-polarized light τp of the S light conversion layer 50 is about 88.6% for an incident angle of 66°.

[0103] In one possible embodiment, the maximum of the internal transmittance curve of visible light of the S light conversion layer 50 is 550 nm±100 nm. Preferably, the maximum of the internal transmittance curve of visible light of the S light conversion layer 50 is 550 nm±50 nm. By making the maximum of the internal transmittance curve of visible light of the S light conversion layer 50 be 550 nm±100 nm, it helps to reduce the color cast caused by the S light conversion layer 50.

[0104] In one possible embodiment, the visible light transmittance of the display glass 100 in the semi-transparent area 110 is uniform; or, the visible light transmittance of the display glass 100 in the semi-transparent area 110 gradually changes.

[0105] In one possible embodiment, the visible light transmittance of the display glass 100 in the semi-transparent area 110 is uniform. Optionally, the visible light transmittance of the outer sheet glass 10 in the semi-transparent area 110 is uniform, the visible light transmittance of the intermediate connecting layer 20 in the semi-transparent area 110 is uniform, the visible light transmittance of the inner sheet glass 30 in the semi-transparent area 110 is uniform, the visible light transmittance of the S light conversion layer 50 in the semi-transparent area 110 is uniform, and the visible light transmittance of the S light reflection layer 40 in the semi-transparent area 110 is uniform.

[0106] In another possible embodiment, the visible light transmittance of the display glass 100 in the semi-transparent area 110 gradually changes. Optionally, the visible light transmittance of the outer sheet glass 10 in the semi-transparent area 110 gradually changes, the visible light transmittance of the intermediate connecting layer 20 in the semi-transparent area 110 gradually changes, the visible light transmittance of the inner sheet glass 30 in the semi-transparent area 110 gradually changes, the visible light transmittance of the S light conversion layer 50 in the semi-transparent area 110 gradually changes, and the visible light transmittance of the S light reflection layer 40 in the semi-transparent area 110 gradually changes. Among them, the visible light transmittance of the display glass 100 in the semi-transparent area 110 gradually increases in the direction from the bottom of the semi-transparent area 110 to the top of the semi-transparent area 110. When the display glass 100 is used as the front windshield of a vehicle, the bottom of the semi-transparent area 110 is closer to the ground relative to the top of the semi-transparent area 110.

[0107] In one possible implementation, at least one of the outer pane glass 10, the intermediate connecting layer 20, the inner pane glass 30, the S-light reflecting layer 40, and the S-light converting layer 50 has a coloration at the translucent region 110 to form the light regulation structure; and / or, the display glass 100 further comprises a coloration layer disposed on a surface of at least one of the outer pane glass 10, the intermediate connecting layer 20, the inner pane glass 30, the S-light reflecting layer 40, and the S-light converting layer 50 and covering the translucent region 110, the coloration layer forming the light regulation structure; and / or, the display glass 100 further comprises a light adjusting layer having an adjustable visible light transmittance, the light adjusting layer disposed on a surface of at least one of the outer pane glass 10, the intermediate connecting layer 20, the inner pane glass 30, the S-light reflecting layer 40, and the S-light converting layer 50 and covering the translucent region 110, the light adjusting layer forming the light regulation structure.

[0108] In one possible implementation, at least one of the outer pane glass 10, the intermediate connecting layer 20, the inner pane glass 30, the S-light reflecting layer 40, and the S-light converting layer 50 has a coloration at the translucent region 110 to form the light regulation structure. Optionally, the outer pane glass 10 can be a colored glass, including but not limited to a colored green glass, the outer pane glass 10 being used to provide the light regulation structure; and / or, the inner pane glass 30 can be a colored glass, including but not limited to a colored green glass, the inner pane glass 30 being used to provide the light regulation structure; and / or, the intermediate connecting layer 20 itself can have a uniform or gradual coloration, the intermediate connecting layer 20 being used to provide the light regulation structure; and / or, the S-light reflecting layer 40 itself can have a uniform or gradual coloration, the S-light reflecting layer 40 being used to provide the light regulation structure; and / or, the S-light converting layer 50 itself can have a uniform or gradual coloration, the S-light converting layer 50 being used to provide the light regulation structure.

[0109] In another possible embodiment, the display glass 100 further comprises a colored layer, the colored layer is disposed on the surface of at least one of the outer sheet glass 10, the intermediate connecting layer 20, the inner sheet glass 30, the S light reflection layer 40, and the S light conversion layer 50, and the colored layer forms the light adjusting structure. The colored layer includes, but is not limited to, a polymer film with a body color, a polymer film with a surface printed ink, paint or pigment, a polymer film with a dye or a colorant, etc. Optionally, the colored layer is disposed on the first surface S1 of the outer sheet glass 10, or the colored layer is disposed on the second surface S2 of the outer sheet glass 10, or the colored layer is disposed on the third surface S3 of the inner sheet glass 30, or the colored layer is disposed on the fourth surface S4 of the inner sheet glass 30, or the colored layer is disposed on the surface of the side of the intermediate connecting layer 20 facing the outer sheet glass 10, or the colored layer is disposed on the surface of the side of the intermediate connecting layer 20 facing the inner sheet glass 30, or the colored layer is disposed on the surface of the side of the S light conversion layer 50 facing the outer sheet glass 10, or the colored layer is disposed on the surface of the side of the S light conversion layer 50 facing the inner sheet glass 30, or the colored layer is disposed on the surface of the side of the S light reflection layer 40 facing the inner sheet glass 30.

[0110] In yet another possible embodiment, the display glass 100 further comprises a light adjusting layer, the light adjusting layer has an adjustable visible light transmittance, and the light adjusting layer is disposed on the surface of at least one of the outer sheet glass 10, the intermediate connecting layer 20, the inner sheet glass 30, the S light reflection layer 40, and the S light conversion layer 50, and the light adjusting layer forms the light adjusting structure. The light adjusting layer includes, but is not limited to, one or more of a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), and a dye liquid crystal film (LC). Optionally, the light adjusting layer is disposed on the second surface S2 of the outer sheet glass 10, or the light adjusting layer is disposed on the third surface S3 of the inner sheet glass 30, or the light adjusting layer is disposed on the surface of the side of the intermediate connecting layer 20 facing the outer sheet glass 10, or the light adjusting layer is disposed on the surface of the side of the intermediate connecting layer 20 facing the inner sheet glass 30, or the light adjusting layer is disposed between the first sub-intermediate connecting layer and the second sub-intermediate connecting layer, or the light adjusting layer is disposed on the surface of the side of the S light conversion layer 50 facing the outer sheet glass 10, or the light adjusting layer is disposed on the surface of the side of the S light conversion layer 50 facing the inner sheet glass 30, or the light adjusting layer is disposed on the surface of the side of the S light reflection layer 40 facing the inner sheet glass 30. The light adjusting layer has a maximum visible light transmittance of 70%, or 80%, or 90%, etc. In this embodiment, when the black border display effect of the semi-transparent area 110 is required, the light adjusting layer is in a low transmittance state, and when the transparent display effect of the semi-transparent area 110 is required, the light adjusting layer is in a high transmittance state.

[0111] By setting the light adjusting layer, the display glass 100 can have good transparency in the semi-transparent area 110, and the reflection ghost and transmission double ghost generated in the semi-transparent area 110 can be reduced, so as to achieve a balance among the transparency, reflection ghost and transmission double ghost.

[0112] In a possible implementation, the display glass 100 further comprises an electric heating element, and at least part of the electric heating element is located in the functional display area 101.

[0113] The electric heating element includes but is not limited to a metal wire, a copper foil, silver paste, a transparent conductive metal film, a carbon nanotube and the like. The electric heating element is connected with a power supply outside the display glass 100, so as to heat the functional display area 101 when powered on. In addition, the electric heating element can also heat the area of the display glass 100 except the functional display area 101, including but not limited to the wiper parking area.

[0114] Optionally, the electric heating element covers the entire functional display area 101, or the electric heating element covers part of the functional display area 101. In a possible embodiment, the electric heating element can be arranged between the outer sheet glass 10 and the inner sheet glass 30, including but not limited to being arranged between the outer sheet glass 10 and the first sub-intermediate connecting layer, or between the inner sheet glass 30 and the second sub-intermediate connecting layer, or between the S light conversion layer 50 and the first sub-intermediate connecting layer, or between the S light conversion layer 50 and the second sub-intermediate connecting layer. In another possible embodiment, the electric heating element can be arranged between the inner sheet glass 30 and the S light reflection layer 40.

[0115] By setting the electric heating element, the defrosting and defogging functions of the functional display area 101 can be achieved, and the display effect of the functional display area 101 can be improved.

[0116] Please refer to Figure 2 and Figure 9 In a possible implementation, the functional display area 101 further comprises an opaque area 112, the opaque area 112 is adjacent to the semi-transparent area 110, and the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is lower than the visible light transmittance TLa1 of the display glass 100 in the semi-transparent area 110.

[0117] The embodiment can realize display partition of the functional display area 101. When the display glass 100 is used as the front windshield of the vehicle, the opaque area 112 and the translucent area 110 are arranged along the height direction of the vehicle, and the translucent area 110 is located on the side of the opaque area 112 away from the ground. The area of the opaque area 112 can be greater than the area of the translucent area 110, or the area of the opaque area 112 can be less than the area of the translucent area 110, or the area of the opaque area 112 can be equal to the area of the translucent area 110. The visible light transmittance of the opaque area 112 is lower than the visible light transmittance of the translucent area 110.

[0118] Optionally, the area ratio of the translucent area 110 to the opaque area 112 is 4:1, or the area ratio of the translucent area 110 to the opaque area 112 is 3:2, or the area ratio of the translucent area 110 to the opaque area 112 is 2:3, or the area ratio of the translucent area 110 to the opaque area 112 is 3:7, or the area ratio of the translucent area 110 to the opaque area 112 is 1:4, or the area ratio of the translucent area 110 to the opaque area 112 is 1:9.

[0119] In a possible embodiment, when the display glass 100 is used as the front windshield of the vehicle, the boundary line between the opaque area 112 and the translucent area 110 is located in the driver's line of sight direction and just covers the irregular shape of the rear end of the vehicle's engine cover.

[0120] In a possible embodiment, the opaque area 112 is used to realize black border display. The opaque area 112 can improve the contrast between the display image and the background image, and strengthen the display image. In a possible application scenario, the opaque area 112 can be used to display important and always displayed information, and the translucent area 110 can be used to display non-important and non-always displayed information.

[0121] Optionally, the normal projection of at least one of the S light reflection layer 40, the S light conversion layer 50, and the light adjusting structure on the surface of the functional display area 101 can cover at least part of the opaque area 112, or the normal projection of the S light reflection layer 40, the S light conversion layer 50, and the light adjusting structure on the surface of the functional display area 101 does not cover the opaque area 112.

[0122] In a possible embodiment, the display glass 100 has a visible light transmittance TLa2≤10%@70° in the opaque area 112. The visible light transmittance of the display glass 100 in the opaque area 112 is uniform, or the visible light transmittance of the display glass 100 in the opaque area 112 gradually increases in the direction of the opaque area 112 pointing to the translucent area 110.

[0123] In one possible embodiment, the visible light transmittance of the display glass 100 in the opaque area 112 is uniform, and the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is less than or equal to 10% @ 70°. Preferably, the visible light transmittance of the display glass 100 in the opaque area 112 is uniform, and the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is less than or equal to 5% @ 70°, or the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is less than or equal to 1% @ 70°, or the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is less than or equal to 0.1% @ 70°, or the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is less than or equal to 0.02% @ 70°, or the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is equal to 0% @ 70°. This embodiment is beneficial to improve the clarity of image display under strong light irradiation.

[0124] In another possible embodiment, the visible light transmittance of the display glass 100 in the opaque area 112 gradually increases in the direction from the opaque area 112 to the translucent area 110, and the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 is not greater than 10% @ 70°.

[0125] By making the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 less than or equal to 10% @ 70° and the visible light transmittance of the display glass 100 in the opaque area 112 uniform, the functional display area 101 of the display glass 100 can have both black edge and transparent display effects, and the image displayed by the black edge is clear and the viewing comfort is better. By making the visible light transmittance TLa2 of the display glass 100 in the opaque area 112 less than or equal to 10% @ 70° and the visible light transmittance of the display glass 100 in the opaque area 112 gradually increase in the direction from the opaque area 112 to the translucent area 110, while realizing that the functional display area 101 of the display glass 100 has both black edge and transparent display effects, the visual fatigue of the human eye when switching between the opaque area 112 and the translucent area 110 can be reduced, and the driving comfort and safety can be improved.

[0126] In one possible embodiment, when the display glass 100 is applied to a vehicle, the projected virtual image corresponding to the translucent area 110 should not exceed the front end of the vehicle head and be near the surface of the engine cover along the direction of the principal axis of the human eye observing the functional display area 101 to project a virtual image center, so as to reduce the interference caused by the superposition of reflected virtual images and transmitted real images (such as those from the road surface, front transportation tools, irregular shapes at the rear end of the engine cover, and rain strip).

[0127] In a possible embodiment, the display glass 100 can further comprise a light absorption layer, and the area of the functional display area 101 covered by the light absorption layer forms the opaque area 112. The light absorption layer can be an opaque polymer film, or can comprise any one of a PDLC, a SPD, an EC, an LC, etc.

[0128] In a possible implementation, the S light reflection layer 40 covers the opaque area 112, and the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is less than or equal to the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110.

[0129] In other words, the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is lower, and the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110 is higher. In this way, in the embodiment in which the image source light is mainly S polarized light, the S light reflection layer 40 at the opaque area 112 can reflect less image source light into the human eye, and the S light reflection layer 40 at the semi-transparent area 110 can reflect more image source light to the human eye.

[0130] In a possible embodiment, the ratio of the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110 to the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is greater than 1.2.

[0131] Preferably, the ratio of the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110 to the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is greater than 1.5, or the ratio of the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110 to the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is greater than 2, or the ratio of the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110 to the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is greater than 4.

[0132] By covering the opaque area 112 with the S light reflection layer 40, the visible light reflectance RLs2 of the S polarized light of the S light reflection layer 40 at the opaque area 112 is less than the visible light reflectance RLs of the S polarized light of the S light reflection layer 40 at the semi-transparent area 110, that is, the visible light reflectance of the S light reflection layer 40 at the opaque area 112 is reduced, so that the reflection of the stray light in the vehicle can be reduced. In addition, it is beneficial to make the display image of the opaque area 112 and the display image of the semi-transparent area 110 observed by the human eye have the same or similar brightness perception.

[0133] Of course, in other possible embodiments, the S light reflecting layer 40 can cover the translucent region 110 and not cover the opaque region 112.

[0134] Please refer to Figure 2 and Figure 9 In one possible embodiment, the display glass 100 further has a see-through view region 102, which is adjacent to the functional display region 101.

[0135] When the display glass 100 is used as a front windshield of a vehicle, the see-through view region 102 and the functional display region 101 are arranged along the height direction of the vehicle, and the see-through view region 102 is located on the side of the functional display region 101 away from the ground. The area of the see-through view region 102 can be greater than the area of the functional display region 101.

[0136] The see-through view region 102 can only include the laminated glass, or the see-through view region 102 can include the laminated glass and at least one of the S light reflecting layer 40, the S light converting layer 50, and the light adjusting structure. The see-through view region 102 can have the same transmittance as a whole, or the see-through view region 102 can include a head-up display region 120.

[0137] In a first possible embodiment, neither the S light reflecting layer 40 nor the S light converting layer 50 covers the see-through view region 102; and the ratio Q of the total transmittance of the transmission image of the display glass 100 in the translucent region 110 to the visible light transmittance of the display glass 100 in the see-through view region 102 at the same incident angle satisfies: 0.5≤Q≤1.

[0138] The transmission image of the display glass 100 in the translucent region 110 includes a transmission primary image and a transmission secondary image. The total transmittance of the transmission image of the display glass 100 in the translucent region 110 is the sum of the visible light transmittance TL1 of the transmission primary image of the display glass 100 in the translucent region 110 and the visible light transmittance TL2 of the transmission secondary image of the display glass 100 in the translucent region 110.

[0139] Preferably, the ratio Q of the total transmittance of the transmission image of the display glass 100 in the translucent region 110 to the visible light transmittance of the display glass 100 in the see-through view region 102 is greater than or equal to 0.8, or the ratio Q of the total transmittance of the transmission image of the display glass 100 in the translucent region 110 to the visible light transmittance of the display glass 100 in the see-through view region 102 is greater than or equal to 0.9.

[0140] It can be understood that the difference between the visible light transmittance TL of the transmission image of the display glass 100 in the translucent region 110 and the visible light transmittance of the display glass 100 in the see-through view region 102 should not be too large.

[0141] By making the ratio Q of the total transmittance of the display glass 100 in the transmittance image of the semi-transparent region 110 and the visible light transmittance of the display glass 100 in the light-transmission field-of-view region 102 satisfy: 0.5≤Q≤1, the visual fatigue can be reduced and the driving comfort can be improved when the human eyes need to adjust the line-of-sight height back and forth between the semi-transparent region 110 and the light-transmission field-of-view region 102 during driving.

[0142] In a possible embodiment, the S-light reflecting layer 40 can be formed with a hollow pattern or with a gradually changing transmittance in the edge region corresponding to the semi-transparent region 110, so as to further reduce the visual fatigue and improve the driving comfort when the human eyes need to adjust the line-of-sight height back and forth between the semi-transparent region 110 and the light-transmission field-of-view region 102 during driving.

[0143] As shown in FIG. 1B, in a second possible embodiment, the display glass 100 has a visible light transmittance TLa1≥70%@0° in the semi-transparent region 110, and the S-light reflecting layer 40 and the S-light converting layer 50 both cover the light-transmission field-of-view region 102. The visible light transmittance TL0of the laminated glass satisfies: 86%@0°≤TL0≤100%@0°; and / or, the vertical reflectivity of the S-light reflecting layer 40 in the light-transmission field-of-view region 102 is ≤20%; and / or, the vertical field-of-view range VFOV of the functional display region 101 is ≥1°; and / or, the visible light reflectivity RLs3of the S-light reflecting layer 40 in the light-transmission field-of-view region 102 for S-polarized light is less than the visible light reflectivity RLs of the S-light reflecting layer 40 in the semi-transparent region 110 for S-polarized light. Figure 10 The visible light transmittance TLa1≥70%@0° of the display glass 100 in the semi-transparent region 110 means that the visible light transmittance TLa1of the display glass 100 in the semi-transparent region 110 is ≥70% at a normal incidence angle. The S-light reflecting layer 40 covering the light-transmission field-of-view region 102 can be the S-light reflecting layer 40 covering part of the light-transmission field-of-view region 102, or the S-light reflecting layer 40 covering the entire light-transmission field-of-view region 102. The S-light converting layer 50 covering the light-transmission field-of-view region 102 can be the S-light converting layer 50 covering part of the light-transmission field-of-view region 102, or the S-light converting layer 50 covering the entire light-transmission field-of-view region 102. The reflectivity of the S-light reflecting layer 40 covering part of the semi-transparent region 110 for S-polarized light can be the same as or different from the reflectivity of the S-light reflecting layer 40 covering part of the light-transmission field-of-view region 102 for S-polarized light.

[0144] By making the S-light reflecting layer 40 and the S-light converting layer 50 both cover the light-transmission field-of-view region 102, the vertical coverage range of the functional display region 101 can be increased, and the abnormal feeling of the boundary line of the semi-transparent region 110 can be avoided.

[0145] By making the S-light reflecting layer 40 and the S-light converting layer 50 both cover the light-transmission field-of-view region 102, the vertical coverage range of the functional display region 101 can be increased, and the abnormal feeling of the boundary line of the semi-transparent region 110 can be avoided.

[0146] In a possible embodiment, the visible light transmittance TL0 of the laminated glass is ≥ 86% @ 0°. The laminated glass does not include the S light reflecting layer 40 and the S light converting layer 50. It can be understood that the visible light transmittance TL0 of the laminated glass is ≥ 86% @ 0°. Alternatively, the visible light transmittance TL0 of the laminated glass is ≥ 88% @ 0°, or the visible light transmittance TL0 of the laminated glass is ≥ 90% @ 0°. In this embodiment, the visible light transmittance TL0 of the laminated glass is ≥ 86% @ 0° can be achieved by making at least one of the outer sheet glass 10 and the inner sheet glass 30 be super white glass. For example, both the outer sheet glass 10 and the inner sheet glass 30 are super white glass; or the outer sheet glass 10 is super white glass and the inner sheet glass 30 is ordinary white glass; or the outer sheet glass 10 is ordinary white glass and the inner sheet glass 30 is super white glass. The super white glass satisfies: TL 905 and TL 940 ≥ 70% @ 4.96 mm laminated glass, AOI = 65°.

[0147] The laminated glass of this embodiment has good light transmittance, which is conducive to reducing the ratio RR12 of the visible light reflectance RL1 of the reflected primary image of the display glass 100 in the semi-transparent area 110 to the visible light reflectance RL2 of the reflected ghost image of the display glass 100 in the semi-transparent area 110, and reducing the ratio TT12 of the visible light transmittance TL1 of the transmitted primary image of the display glass 100 in the semi-transparent area 110 to the visible light transmittance TL2 of the transmitted secondary image of the display glass 100 in the semi-transparent area 110, so that when the S light reflecting layer 40 and the S light converting layer 50 extend from the semi-transparent area 110 to cover the light transmission field of view area 102, the light transmission requirement of the light transmission field of view area 102 can be ensured.

[0148] In a possible embodiment, the vertical reflectance of the S light reflecting layer 40 in the light transmission field of view area 102 is ≤ 20%. It can be understood that the reflectance of the S light reflecting layer 40 in the light transmission field of view area 102 is ≤ 20% @ 0°. Preferably, the vertical reflectance of the S light reflecting layer 40 in the light transmission field of view area 102 is ≤ 18%, or the vertical reflectance of the S light reflecting layer 40 in the light transmission field of view area 102 is ≤ 15%. By making the vertical reflectance of the S light reflecting layer 40 in the light transmission field of view area 102 be ≤ 20%, the light transmittance of the light transmission field of view area 102 can be ensured when the S light reflecting layer 40 covers the light transmission field of view area 102.

[0149] In a possible embodiment, the vertical field of view range VFOV of the functional display area 101 is ≥ 1°. Preferably, the vertical field of view range VFOV of the functional display area 101 is ≥ 1.5°, or the vertical field of view range VFOV of the functional display area 101 is ≥ 2°, or the vertical field of view range VFOV of the functional display area 101 is ≥ 3°.

[0150] In one possible embodiment, the visible light reflectance RLs3 of the S-polarized light of the S-light reflecting layer 40 in the light-transmitting visual field area 102 is less than the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110.

[0151] It can be understood that, in the embodiment, the S-light reflecting layer 40 has different S-polarized light reflectances in the light-transmitting visual field area 102 and the semi-transparent area 110. Specifically, the S-light reflecting layer 40 has a lower S-polarized light reflectance in the light-transmitting visual field area 102, and has a higher S-polarized light reflectance in the semi-transparent area 110.

[0152] Optionally, the ratio RLs / RLs3 of the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110 to the visible light reflectance RLs3 of the S-polarized light of the S-light reflecting layer 40 in the light-transmitting visual field area 102 is greater than 1.2, or the ratio RLs / RLs3 of the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110 to the visible light reflectance RLs3 of the S-polarized light of the S-light reflecting layer 40 in the light-transmitting visual field area 102 is greater than 1.5, or the ratio RLs / RLs3 of the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110 to the visible light reflectance RLs3 of the S-polarized light of the S-light reflecting layer 40 in the light-transmitting visual field area 102 is greater than 2.

[0153] By making the visible light reflectance RLs3 of the S-polarized light of the S-light reflecting layer 40 in the light-transmitting visual field area 102 less than the visible light reflectance RLs of the S-polarized light of the S-light reflecting layer 40 in the semi-transparent area 110, the light reflectance of the light-transmitting visual field area 102 can be reduced when the S-light reflecting layer 40 covers the light-transmitting visual field area 102, and the reflection of the stray light in the vehicle can be reduced.

[0154] On the basis of the embodiment 2 in Table 1, different conversion rates ψs are used for simulation, wherein the vertical reflectance of the S-light reflecting layer 40 is 21.9%, and the simulation results are shown in Table 4 and Figure 11 Table 4:

[0155] It can be seen from Table 4 and Figure 11 It can be seen that (1) as the vertical transmittance TL0 of the laminated glass increases, both TT12 and RR12 decrease; (2) the conversion rate ψs of the S-polarized light of the S-light conversion layer 50 has no effect on the vertical visible light transmittance TL0, and has little effect on the oblique incident visible light transmittance TLa1; (3) when the vertical visible light transmittance TL0 of the laminated glass is greater than or equal to 86%, TLa1 is large, and at the same time, both TT12 and RR12 decrease, and the S-light conversion layer 50 can improve TT12 and RR12, and realize the optimization of TLa1, TT12 and RR12.

[0156] In a third possible implementation, the display glass 100 has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region 110, the light-transmitting visual field region 102 comprises a main visual field window and an information acquisition window, and the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 both cover the main visual field window, and neither of the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 covers the information acquisition window.

[0157] In the third possible implementation, the display glass 100 has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region 110, the light-transmitting visual field region 102 comprises a main visual field window and an information acquisition window, and the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 both cover the main visual field window, and neither of the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 covers the information acquisition window.

[0158] In the third possible implementation, the display glass 100 has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region 110, the light-transmitting visual field region 102 comprises a main visual field window and an information acquisition window, and the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 both cover the main visual field window, and neither of the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 covers the information acquisition window.

[0159] In the third possible implementation, the display glass 100 has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region 110, the light-transmitting visual field region 102 comprises a main visual field window and an information acquisition window, and the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 both cover the main visual field window, and neither of the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 covers the information acquisition window. Figure 12 In the third possible implementation, the display glass 100 has a visible light transmittance TLa1≥70% @ 0° in the semi-transparent region 110, the light-transmitting visual field region 102 comprises a main visual field window and an information acquisition window, and the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 both cover the main visual field window, and neither of the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50 covers the information acquisition window.

[0160] The display glass 100 has a visible light transmittance TLa1≥70% @ 0°, i.e., a normal incidence angle, in the semi-transparent region 110. The head-up display region 120 belongs to a head-up display system and can be used to display information such as driving speed, navigation, steering, and adaptive cruise, etc. The head-up display region 120 has light transmittance. The S-polarized light reflecting layer 40 covers the head-up display region 120 can be the S-polarized light reflecting layer 40 covering part of the head-up display region 120, or the S-polarized light reflecting layer 40 covering the entire head-up display region 120. The S-polarized light converting layer 50 covers the head-up display region 120 can be the S-polarized light converting layer 50 covering part of the head-up display region 120, or the S-polarized light converting layer 50 covering the entire head-up display region 120.

[0161] Since the head-up display region 120 has light transmittance, it has the same problem of reflection ghost as the semi-transparent region 110 of the functional display region 101. The S-polarized light reflecting layer 40 can enhance the reflection of S-polarized light and reduce the brightness of the reflection ghost. The S-polarized light converting layer 50 can convert S-polarized light into P-polarized light, and the P-polarized light has low reflectivity at the interface, thereby reducing the brightness of the reflection ghost. Therefore, by covering the head-up display region 120 with the S-polarized light reflecting layer 40 and the S-polarized light converting layer 50, the ratio RR12 of the visible light reflectance RL1 of the reflection main image to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the head-up display region 120 can be improved, and the display image of the head-up display region 120 can be clearer.

[0162] In a possible embodiment, the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the head-up display region 120 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the head-up display region 120 is ≥40 in the range of 45°-75° incidence angle; and / or, the ratio TT12 of the visible light transmittance TL1 of the transmission main image of the display glass 100 in the head-up display region 120 to the visible light transmittance TL2 of the transmission double image of the display glass 100 in the head-up display region 120 is ≥40 in the range of 45°-75° incidence angle.

[0163] Preferably, the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the head-up display region 120 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the head-up display region 120 is ≥50 in the range of 45°-75° incidence angle, or the ratio RR12 of the visible light reflectance RL1 of the reflection main image of the display glass 100 in the head-up display region 120 to the visible light reflectance RL2 of the reflection ghost of the display glass 100 in the head-up display region 120 is ≥60 in the range of 45°-75° incidence angle.

[0164] Preferably, the ratio TT12 of the visible light transmittance TL1 of the display glass 100 for the transmitted primary image at the head-up display area 120 to the visible light transmittance TL2 of the display glass 100 for the transmitted secondary image at the head-up display area 120 is ≥ 50 in the range of 45°-75° of the incident angle AOI, or the ratio TT12 of the visible light transmittance TL1 of the display glass 100 for the transmitted primary image at the head-up display area 120 to the visible light transmittance TL2 of the display glass 100 for the transmitted secondary image at the head-up display area 120 is ≥ 70 in the range of 45°-75° of the incident angle AOI.

[0165] Preferably, the ratio TT12 of the visible light transmittance TL1 of the display glass 100 for the transmitted primary image at the head-up display area 120 to the visible light transmittance TL2 of the display glass 100 for the transmitted secondary image at the head-up display area 120 is ≥ 50 in the range of 45°-75° of the incident angle AOI, or the ratio TT12 of the visible light transmittance TL1 of the display glass 100 for the transmitted primary image at the head-up display area 120 to the visible light transmittance TL2 of the display glass 100 for the transmitted secondary image at the head-up display area 120 is ≥ 70 in the range of 45°-75° of the incident angle AOI.

[0166] On the basis of the example B in Table 1, simulations were performed with different conversion rates ψs, at an incident angle AOI = 65°, wherein the reflectivity of the S light reflecting layer 40 was RLs = 53.0% @ 65°, RLp = 1.6% @ 65°, as shown in Table 5, Table 6 and Table 7 below. Figure 13 .

[0167] Table 5:

[0168] Table 6:

[0169] From Tables 5 and 6, and Figure 13 As can be seen from the data, (1) the visible light transmittance TLa1 of the TT12 and RR12 light-transmitting field of view 102 has the same trend, while the vertical transmittance TL0 of the laminated glass remains unchanged; (2) the TT12 and RR12 of the 65° incident area are larger, resulting in better image display.

[0170] In one possible implementation, the display glass 100 further includes a coating layer; the coating layer is disposed on the surface of the inner glass 30 facing the outer glass 10, and the inner glass 30 is in the shape of a fixed wedge or a variable wedge; or, the coating layer is disposed on the surface of the outer glass 10 facing the inner glass 30, and at least one of the inner glass 30, the intermediate connecting layer 20, and the S-light conversion layer 50 is in the shape of a fixed wedge or a variable wedge.

[0171] The coating layer includes, but is not limited to, a silver plating layer. The coating layer can be used to achieve heat insulation or heating of the display glass 100.

[0172] In one possible embodiment, the coating layer is disposed on the third surface S3 of the inner glass 30, and the inner glass 30 is in the shape of a fixed wedge or a variable wedge. In another possible embodiment, the coating layer is disposed on the second surface S2 of the outer glass 10, and at least one of the inner glass 30, the intermediate connecting layer 20, and the S-light conversion layer 50 is in the shape of a fixed wedge or a variable wedge.

[0173] Since the coating layer on the display glass 100 has a certain reflectivity or forms additional coating ghosting, the shape of at least one of the inner glass 30, intermediate connecting layer 20, and S-light conversion layer 50 is designed to be a fixed wedge or a variable wedge according to the setting position of the coating layer. This is beneficial to make the coating ghosting coincide with the reflected main image, thereby reducing the impact of coating ghosting on the image display effect and making the image display in the semi-transparent area 110 and the head-up display area 120 clearer.

[0174] like Figure 14 As shown, in the fifth possible implementation, the light-transmitting field of view 102 includes a head-up display area 120, the S-light conversion layer 50 covers at least a portion of the head-up display area 120, and the S-light reflection layer 40 does not cover the light-transmitting field of view 102.

[0175] The head-up display area 120 is part of the head-up display system and can be used to display driving speed, navigation, steering, adaptive cruise control and other information. The head-up display area 120 has light transmittance. The S-polarized light conversion layer 50 covers the head-up display area 120 can be the S-polarized light conversion layer 50 covering part of the head-up display area 120, or the S-polarized light conversion layer 50 covering the entire head-up display area 120.

[0176] Since the head-up display area 120 has light transmittance, the S-polarized light conversion layer 50 can convert S-polarized light into P-polarized light, reduce the reflection of S-polarized light by the outer glass 10, and reduce the brightness of the reflected ghost image. Therefore, by covering the S-polarized light conversion layer 50 on the head-up display area 120, the ratio RR12 of the visible light reflectance RL1 of the reflected main image to the visible light reflectance RL2 of the reflected ghost image of the display glass 100 in the head-up display area 120 can be improved, and the display image in the head-up display area 120 can be clearer. In addition, the S-polarized light reflection layer 40 does not cover the light transmittance field of view area 102, which can achieve higher light transmittance of the light transmittance field of view area 102, while reducing the reflection of stray light inside the vehicle.

[0177] On the basis of Table 1, Comparative Example 2, different conversion rates ψs, different incident angles were used for simulation, as shown in Table 7 and Figure 15 Table 7:

[0178] From the simulation results of Table 7 and Table 1, Comparative Example 2, and Figure 15It can be obtained that: (1) RR12 and TLa1 have the same trend, as the incident angle AOI approaches the Brewster angle θB (70°->65°->60°), RR12 increases, the reflection ghost becomes dim, and the effect becomes better; (2) as the conversion rate ψs of the S light conversion layer 50 increases, RR12 increases; (3) under multiple target requirements (reflection image RR12≥40:1; TL0≥70%; oblique incidence TLa1≥40% or even ≥55%), the high conversion rate of the S light conversion layer 50 and the incident angle closer to the Brewster angle need to be considered, for example: at an incident angle of 65°, the conversion rate ψs of the S light conversion layer 50 needs to be ≥99% and TL0 is between 70%-80%, the parameter condition is harsh; at an incident angle of 60°, the conversion rate ψs of the S light conversion layer 50 needs to be ≥97% and TL0 is between 70%-90%, the parameter condition is slightly wider; (4) in the transparent field of view area 102, the specific value of TT12 is about 189-4917 (the higher the half-wave plate ψ, the smaller TL0, and the smaller AOI, all of which bring about the increase of TT12), which is much larger than the target value 40:1, and is also much larger than the same structure of laminated glass, for example, AOI=65°, the conversion rate ψs of the S light conversion layer 50 is 95%, in the laminated glass structure of 2.0mmC+0.76mmPVB+2.0mmC, TT12 is 263.2, and TT12 corresponding to no S light conversion layer 50 is only 52, that is, the transmitted double image is greatly reduced, so that the image outside the vehicle is clearer, especially at night.

[0179] In a possible embodiment, the conversion rate ψs2 of the S polarized light of the S light conversion layer 50 in the head-up display area 120 satisfies: 95%≤ψs2≤100%.

[0180] Preferably, the conversion rate ψs2 of the S polarized light of the S light conversion layer 50 in the head-up display area 120 is ≥97%; or, the conversion rate ψs2 of the S polarized light of the S light conversion layer 50 in the head-up display area 120 is ≥99%.

[0181] In a possible embodiment, at least one of the outer sheet glass, the intermediate connecting layer 20, and the inner sheet glass has a fixed wedge shape or a variable wedge shape in the head-up display area 120.

[0182] Since the S light reflection layer 40 does not cover the head-up display area 120, the S light reflection layer 40 fails to reduce the reflection ghost in the head-up display area 120, and by making at least one of the outer sheet glass, the intermediate connecting layer 20, and the inner sheet glass have a fixed wedge shape or a variable wedge shape in the head-up display area 120, it is beneficial to make the reflection ghost formed by the reflection of the S polarized light by the outer sheet glass 10 coincide with the reflection main image, so that the reflection ghost can be reduced, and the image display in the head-up display area 120 is clearer.

[0183] In a possible implementation, the display glass 100 further comprises a coating layer; the coating layer is arranged on a surface of a side of the inner sheet glass 30 facing the outer sheet glass 10, the inner sheet glass 30 is in a fixed wedge shape or a variable wedge shape; or the coating layer is arranged on a surface of a side of the outer sheet glass 10 facing the inner sheet glass 30, at least one of the inner sheet glass 30, the intermediate connecting layer 20, and the S-light conversion layer 50 is in a fixed wedge shape or a variable wedge shape.

[0184] The coating layer includes but is not limited to a silver coating layer. The coating layer can be used to achieve heat insulation or heating of the display glass 100.

[0185] In a possible implementation, the coating layer is arranged on the third surface S3 of the inner sheet glass 30, and the inner sheet glass 30 is in a fixed wedge shape or a variable wedge shape. In another possible implementation, the coating layer is arranged on the second surface S2 of the outer sheet glass 10, and at least one of the inner sheet glass 30, the intermediate connecting layer 20, and the S-light conversion layer 50 is in a fixed wedge shape or a variable wedge shape.

[0186] Since the display glass 100 is provided with the coating layer, the coating layer has a certain reflectivity, or an additional coating ghost image is formed, and therefore, according to the arrangement position of the coating layer, the shape of at least one of the inner sheet glass 30, the intermediate connecting layer 20, and the S-light conversion layer 50 is designed to be a fixed wedge shape or a variable wedge shape, which is beneficial to superimpose the coating ghost image and the reflection main image, thereby reducing the influence of the coating ghost image on the image display effect, and making the image display of the semi-transparent area 110 and the head-up display area 120 clearer.

[0187] In a possible implementation, the display glass 100 can further comprise a black border protection area 103 located on a side of the functional display area 101 away from the light-transmitting view area 102 or surrounding the functional display area 101 and the light-transmitting view area 102. The black border protection area 103 is not transparent to light. Optionally, the black border protection area 103 has the same or similar visible light transmittance as the opaque area 112 in the functional display area 101, or the visible light transmittance of the black border protection area 103 is lower than that of the opaque area 112 in the functional display area 101.

[0188] Further, the present application also provides a glass display system. The glass display system comprises an image source 60 and the display glass 100 according to any one of the above-mentioned embodiments; the image source 60 emits light rays in which the proportion of S-polarized light is greater than or equal to 90% and less than or equal to 100%.

[0189] Preferably, the proportion of S-polarized light in the light emitted by the image source 60 is greater than or equal to 95%, or the proportion of S-polarized light in the light emitted by the image source 60 is greater than or equal to 97%, or the proportion of S-polarized light in the light emitted by the image source 60 is greater than or equal to 99%.

[0190] By making the proportion of S-polarized light in the light emitted by the image source 60 greater than or equal to 90%, the S light reflection layer 40 reflects S-polarized light to form a display image, so that the utilization rate of the image source light can be improved. Moreover, the reflectivity of the S light reflection layer 40 to P-polarized light is low, so by making the proportion of S-polarized light in the light emitted by the image source 60 greater than or equal to 90%, the power consumption of the glass display system can also be reduced. In addition, when the proportion of S-polarized light in the light emitted by the image source 60 is greater than or equal to 90%, the proportion of P-polarized light in the light emitted by the image source 60 is small, so that the case of P-polarized light entering the laminated glass and being converted into S-polarized light by reflection to form a reflected ghost image can be avoided.

[0191] In addition, the present application also provides a transportation tool. The transportation tool includes but is not limited to a car, a truck, an airplane, a train, a rail transit vehicle, etc. In the embodiment of the present application, the transportation tool is taken as an example of a car. The transportation tool includes a main body assembly and the glass display system. The main body assembly includes but is not limited to a vehicle body, wheels, a chassis, an engine and / or a battery assembly, etc.

[0192] In a possible implementation, the main body assembly includes a functional part near the glass display system, and the functional part includes at least one of an instrument panel, a steering wheel, and a vehicle body A-pillar, and the functional part is formed with a light absorbing part.

[0193] The light absorbing part includes but is not limited to a rayon base cloth and nylon fluff, polyurethane, PET polyester film, acrylic, polyethylene, carbon nanotubes, and extinction ink, etc.

[0194] Since the S light reflection layer 40 increases stray light reflection, the functional part is formed with a light absorbing part, so that the reflected stray light when external light enters the transportation tool through the display glass 100 can be reduced.

[0195] The features mentioned in the specification, claims and drawings can be combined with each other in any way within the scope of the present application. The advantages and features described for the display glass 100 apply in a corresponding manner to the glass display system and the transportation tool.

[0196] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above-described embodiments are possible without departing from the scope of the present application, and that such improvements and modifications are to be construed as falling within the scope of the present application.

Claims

1. A display glass, characterized in that, The display glass includes laminated glass, which comprises an outer glass sheet, an intermediate connecting layer, and an inner glass sheet stacked sequentially. The display glass also includes an S-ray reflective layer, an S-ray conversion layer, and a light adjustment structure; The display glass has a functional display area, and the functional display area has a semi-transparent area; The S-polarized light reflective layer is disposed on the side of the inner glass that is away from the outer glass and covers the semi-transparent area. The S-polarized light reflective layer is used to reflect S-polarized light. The S-polarization conversion layer is disposed between the inner glass and the outer glass and covers the semi-transparent area. The S-polarization conversion layer is used to convert S-polarized light into P-polarized light. The light-adjusting structure covers the semi-transparent area and is used to adjust the light transmittance of the semi-transparent area. At least a portion of the light-adjusting structure is provided by at least one of the outer glass, the intermediate connecting layer, the inner glass, the S-ray reflective layer, and the S-ray conversion layer, and / or at least a portion of the light-adjusting structure is disposed on at least one of the outer glass, the intermediate connecting layer, the inner glass, the S-ray reflective layer, and the S-ray conversion layer.

2. The display glass according to claim 1, characterized in that, The visible light transmittance TLa1 of the display glass in the semi-transparent region satisfies: 40%@70°≤TLa1≤80%@70°; The ratio of the visible light reflectance RL1 of the main image reflected by the display glass in the semi-transparent area to the visible light reflectance RL2 of the ghost image reflected by the display glass in the semi-transparent area is RR12≥40@70°; The ratio of the visible light transmittance TL1 of the primary image transmitted by the display glass in the semi-transparent area to the visible light transmittance TL2 of the double image transmitted by the display glass in the semi-transparent area is TT12≥40@70°.

3. The display glass according to claim 1, characterized in that, The semi-transparent area is outside the test area B after the field of view is reduced according to the national standard GB9656.

4. The display glass according to claim 1, characterized in that, Within the incident angle range of 65°-75°, the visible light reflectivity RLs of the S-polarized light of the S-light reflective layer in the semi-transparent region is greater than the visible light reflectivity RLp of the P-polarized light of the S-light reflective layer in the semi-transparent region. And / or, The visible light reflectance RLs of the S-polarized light in the semi-transparent region of the S-light reflective layer satisfies: 40%@70°≤RLs; And / or, The visible light reflectivity RLp of the S-light reflective layer in the semi-transparent region for P-polarized light satisfies: RLp≤20%@70°; And / or, The ratio G of the visible light reflectivity RLs of the S-polarized light in the semi-transparent region to the visible light reflectivity RLp of the P-polarized light in the semi-transparent region of the S-light reflective layer is ≥3.

5. The display glass according to claim 1, characterized in that, The refractive index n of the S-ray reflective layer is ≥1.7; And / or, The visible light reflectance deviation ΔDs of the S-polarized light of the S-light reflective layer is ≤3%@70°; And / or, The visible light reflectance deviation ΔDp of the P-polarized light of the S-light reflective layer is ≤3%@70°.

6. The display glass according to claim 1, characterized in that, The material of the S-light reflective layer includes TiO2; And / or, The thickness Tc of the S-ray reflective layer satisfies: 10nm≤Tc≤150nm; And / or, The S-ray reflective layer is printed on the air surface of the inner glass.

7. The display glass according to claim 1, characterized in that, The conversion efficiency ψs1 of the S-polarized light in the semi-transparent region of the S-polarized light conversion layer satisfies: 85% ≤ ψs1 ≤ 100%; And / or, The thickness t of the S-light conversion layer satisfies: 2μm≤t≤200μm; And / or, The reflectivity of the S-ray conversion layer is ≤2%; And / or, The intermediate connection layer includes a first sub-intermediate connection layer and a second sub-intermediate connection layer. The S-light conversion layer is located between the first sub-intermediate connection layer and the second sub-intermediate connection layer. The ratio K of the thickness of the first sub-intermediate connection layer to the thickness of the second sub-intermediate connection layer satisfies: K≤1±0.

5.

8. The display glass according to claim 1, characterized in that, The internal transmittance τs of the S-polarized light conversion layer to S-polarized light is greater than the internal transmittance τp of the S-polarized light conversion layer to P-polarized light.

9. The display glass according to claim 1, characterized in that, The visible light transmittance of the display glass is uniform in the semi-transparent area; Alternatively, the visible light transmittance of the display glass in the semi-transparent region gradually changes.

10. The display glass according to claim 1, characterized in that, At least one of the outer glass, the intermediate connecting layer, the inner glass, the S-ray reflective layer, and the S-ray conversion layer is colored in the translucent area to form the light-adjusting structure; And / or, The display glass further includes a coloring layer, which is disposed on the surface of at least one of the outer glass, the intermediate connecting layer, the inner glass, the S-ray reflective layer, and the S-ray conversion layer, and the coloring layer forms the light adjustment structure; And / or, The display glass further includes a dimming layer with adjustable visible light transmittance. The dimming layer is disposed on the surface of at least one of the outer glass, the intermediate connecting layer, the inner glass, the S-ray reflective layer, and the S-ray conversion layer, and the dimming layer forms the light adjustment structure.

11. The display glass according to any one of claims 1 to 10, characterized in that, The display glass also includes an electric heating element, at least a portion of which is located in the functional display area.

12. The display glass according to any one of claims 1 to 10, characterized in that, The functional display area also includes an opaque area, which is adjacent to the semi-transparent area, and the visible light transmittance TLa2 of the display glass in the opaque area is lower than the visible light transmittance TLa1 of the display glass in the semi-transparent area.

13. The display glass according to claim 12, characterized in that, The visible light transmittance of the display glass in the opaque area is ≤10%@70°, the visible light transmittance of the display glass in the opaque area is uniform, or the visible light transmittance of the display glass in the opaque area gradually increases along the direction from the opaque area to the semi-transparent area.

14. The display glass according to claim 12, characterized in that, The S-polarized reflective layer covers the opaque area, and the visible light reflectance RLs2 of the S-polarized light of the S-polarized light in the opaque area is less than or equal to the visible light reflectance RLs of the S-polarized light of the S-polarized light in the semi-transparent area.

15. The display glass according to any one of claims 1 to 10, characterized in that, The display glass also has a light-transmitting viewing area, which is adjacent to the semi-transparent area.

16. The display glass according to claim 15, characterized in that, Neither the S-ray reflective layer nor the S-ray conversion layer covers the light-transmitting field of view. At the same incident angle, the ratio Q of the total transmittance of the transmitted image of the display glass in the semi-transparent region to the visible light transmittance of the display glass in the light-transmitting field of view satisfies: 0.5≤Q≤1.

17. The display glass according to claim 15, characterized in that, The visible light transmittance of the display glass in the semi-transparent area is TLa1≥70%@0°, and both the S-light reflective layer and the S-light conversion layer cover the light-transmitting field of view. The visible light transmittance TL0 of the laminated glass is ≥86%@0°; And / or, The vertical reflectivity of the S-light reflective layer in the light-transmitting field of view is ≤20%; And / or, The vertical field of view (VFOV) of the functional display area is ≥1°; And / or, The visible light reflectance RLs3 of the S-polarized light in the transparent field of view of the S-light reflective layer is less than the visible light reflectance RLs of the S-polarized light in the semi-transparent area of ​​the S-light reflective layer.

18. The display glass according to claim 15, characterized in that, The visible light transmittance of the display glass in the semi-transparent area is TLa1≥70%@0°. The light-transmitting field of view includes a main field of view window and an information acquisition window. The S-light reflection layer and the S-light conversion layer both cover the main field of view window, while neither the S-light reflection layer nor the S-light conversion layer covers the information acquisition window.

19. The display glass according to claim 15, characterized in that, The visible light transmittance of the display glass in the semi-transparent area is TLa1≥70%@0°, the light-transmitting field of view includes the head-up display area, and the S-light reflection layer and the S-light conversion layer both cover the head-up display area.

20. The display glass according to claim 19, characterized in that, Within the incident angle range of 45°-75°, the ratio RR12 of the visible light reflectance RL1 of the main image reflected by the display glass in the head-up display area to the visible light reflectance RL2 of the ghost image reflected by the display glass in the head-up display area is ≥40. And / or, Within the incident angle range of 45°-75°, the ratio TT12 of the visible light transmittance TL1 of the main image transmitted by the display glass in the head-up display area to the visible light transmittance TL2 of the double image transmitted by the display glass in the head-up display area is ≥40.

21. The display glass according to claim 19, characterized in that, The display glass also includes a coating layer; The coating layer is disposed on the surface of the inner glass sheet facing the outer glass sheet, and the inner glass sheet is in the shape of a fixed wedge or a variable wedge. or, The coating layer is disposed on the surface of the outer glass sheet facing the inner glass sheet, and at least one of the inner glass sheet, the intermediate connecting layer, and the S-light conversion layer is in the shape of a fixed wedge or a variable wedge.

22. The display glass according to claim 15, characterized in that, The light-transmitting field of view includes a head-up display area, the S-ray conversion layer covers at least a portion of the head-up display area, and the S-ray reflection layer does not cover the light-transmitting field of view.

23. The display glass according to claim 22, characterized in that, The conversion efficiency ψs2 of the S-polarized light in the head-up display area of ​​the S-polarized conversion layer satisfies: 95%≤ψs2≤100%.

24. The display glass according to claim 22, characterized in that, At least one of the outer glass, the intermediate connecting layer, and the inner glass is in the shape of a fixed wedge or a variable wedge in the head-up display area.

25. The display glass according to claim 22, characterized in that, The display glass also includes a coating layer; The coating layer is disposed on the surface of the inner glass sheet facing the outer glass sheet, and the inner glass sheet is in the shape of a fixed wedge or a variable wedge. or, The coating layer is disposed on the surface of the outer glass sheet facing the inner glass sheet, and at least one of the inner glass sheet, the intermediate connecting layer, and the S-light conversion layer is in the shape of a fixed wedge or a variable wedge.

26. A glass display system, characterized in that, Includes an image source and a display glass according to any one of claims 1 to 25; The proportion of S-polarized light in the light emitted by the image source is greater than or equal to 90% and less than or equal to 100%.

27. A means of transport, characterized in that, It includes the main components and the glass display system according to claim 26.

28. The means of transport according to claim 27, characterized in that, The main component includes a functional element close to the glass display system, the functional element including at least one of the dashboard, steering wheel, and A-pillar of the vehicle body, and a light-absorbing portion is formed on the functional element.

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