Extended HUD display assembly

Abstract

The utility model discloses an extended HUD display assembly comprising a transparent base layer provided with a first surface and a second surface which are oppositely arranged; the pressure-sensitive adhesive layer is arranged on the first surface of the transparent base layer; the transparent touch layer is arranged on the second surface of the glass substrate; and the antireflection layer is arranged on the surface of one side, far away from the transparent base layer, of the transparent touch layer. According to the extended HUD display assembly, the imaging quality of the HUD can be improved, and meanwhile, a driver can perform touch operation on display information of the HUD.

Description

Technical Field

[0001] The utility model relates to a head-up display technology, in particular to an extended HUD display component. Background Art

[0002] HUD, short for Head-Up Display, is a technology that projects important information (such as vehicle speed, navigation information, and vehicle status) onto a transparent display panel in front of the driver, allowing them to see the information they need without having to look down. In the automotive field, HUD projects important information such as driving speed, navigation instructions, and safety warnings onto the windshield in front of the driver's line of sight, allowing the driver to stay focused on the road while driving, reducing distraction caused by looking down at the instrument panel or central control screen, thereby improving driving safety.

[0003] Existing HUDs use the windshield as a projection carrier for displaying information. However, the windshield adopts a double-glass structure with high reflectivity, which affects the imaging quality of the HUD. In addition, the display information projected by the two layers of glass will form severe ghosting.

[0004] To solve the above technical problems, the existing technology coats the projection area of ​​the windshield with an anti-reflection film to reduce the reflectivity of the windshield and improve the imaging quality of the HUD. However, this requires customizing the windshield from the supplier, which increases the application cost of the HUD.

[0005] In addition, the driver cannot touch the HUD display information. Utility Model Content

[0006] In order to solve the above-mentioned deficiencies of the prior art, the present invention provides an expandable HUD display assembly, which can improve the imaging quality of the HUD and enable the driver to perform touch operations on the displayed information of the HUD.

[0007] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0008] An extended HUD display assembly, comprising:

[0009] A transparent base layer having a first surface and a second surface opposite to each other;

[0010] A pressure-sensitive adhesive layer is disposed on the first surface of the transparent base layer;

[0011] a transparent touch layer, disposed on the second surface of the glass substrate;

[0012] The anti-reflection layer is arranged on a surface of the transparent touch layer that is away from the transparent base layer.

[0013] Furthermore, the transparent base layer includes a projection area and a pin area, and the pin area is located on one side edge of the projection area; the transparent touch layer includes multiple transparent capacitors and multiple connecting pins, each transparent capacitor is located in the projection area of ​​the transparent base layer, each connecting pin is located in the pin area of ​​the transparent base layer, and each connecting pin is connected to the corresponding transparent capacitor.

[0014] Furthermore, the anti-reflection layer is formed by multiple layers of high-refractive-index films and multiple layers of low-refractive-index films, and the layers of high-refractive-index films and the layers of low-refractive-index films are alternately stacked in sequence.

[0015] Furthermore, the high refractive index film is an antimony trioxide film, a tin dioxide film, a lead oxide film, a tantalum pentoxide film, a niobium pentoxide film, a zinc oxide film, a titanium dioxide film, a cerium dioxide film or a zirconium dioxide film.

[0016] Furthermore, the low refractive index film is a silicon dioxide film, a magnesium oxide film, an aluminum oxide film, a yttrium oxide film, a lanthanum oxide film or an indium oxide film.

[0017] Furthermore, the expanded HUD display assembly further includes a release film layer, which is disposed on a surface of the pressure-sensitive adhesive layer that is away from the transparent base layer.

[0018] Furthermore, the extended HUD display assembly also includes a silane coupling agent layer, which is arranged between the transparent base layer and the transparent touch layer.

[0019] Furthermore, the silane coupling agent layer is a methacryloxysilane layer.

[0020] Furthermore, the thickness of the silane coupling agent layer is 500-600 nm.

[0021] Furthermore, the transparent base layer is a plastic substrate or a glass substrate.

[0022] The utility model has the following beneficial effects: the utility model sequentially manufactures the transparent touch layer and the anti-reflection layer on a transparent base layer with the pressure-sensitive adhesive layer to form an extended HUD display assembly. When in use, the extended HUD display assembly is adhered and fixed to the HUD projection area of ​​the windshield through the pressure-sensitive adhesive layer to serve as a projection carrier for carrying the display information of the HUD projection. There is no need to customize the windshield from the supplier, thereby reducing the application cost of the HUD. At the same time, the transparent touch layer can be used by the driver to touch the display information of the HUD to realize human-computer interaction of the HUD. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the stacking structure of the expandable HUD display assembly provided by the utility model.

[0024] Figure 2 This is a schematic diagram of the planar structure of the transparent touch layer and the anti-reflection layer in the extended HUD display assembly provided by the utility model.

[0025] Figure 3 This is a schematic diagram of the stacking structure of the anti-reflection layer in the extended HUD display assembly provided by the present invention.

[0026] Figure 4 This is a schematic diagram of the stacking structure of another expandable HUD display assembly provided by the present invention.

[0027] Figure 5 This is a schematic diagram of the stacking structure of another expandable HUD display assembly provided by the present invention. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first," "second," or "third" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," "fixed," and "set" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] Example 1

[0033] like Figure 1 As shown, an extended HUD display component includes:

[0034] A transparent base layer 1 having a first surface and a second surface opposite to each other;

[0035] A pressure-sensitive adhesive layer 2 is provided on the first surface of the transparent base layer 1;

[0036] a transparent touch layer 3, disposed on the second surface of the glass substrate;

[0037] The anti-reflection layer 4 is disposed on the surface of the transparent touch layer 3 that is away from the transparent base layer 1 .

[0038] In the present invention, the transparent touch layer 3 and the anti-reflection layer 4 are sequentially fabricated on a transparent base layer 1 with the pressure-sensitive adhesive layer 2 to form an extended HUD display assembly. When in use, the extended HUD display assembly is adhered and fixed to the HUD projection area 11 of the windshield via the pressure-sensitive adhesive layer 2 to serve as a projection carrier for carrying the display information projected by the HUD. This eliminates the need to customize the windshield from the supplier, thereby reducing the application cost of the HUD. At the same time, the transparent touch layer 3 can be used by the driver to touch the display information of the HUD, thereby realizing human-computer interaction of the HUD.

[0039] like Figure 2 As shown, the transparent base layer 1 includes a projection area 11 and a pin area 12, and the pin area 12 is located on one side edge of the projection area 11; the transparent touch layer 3 includes a plurality of transparent capacitors 31 and a plurality of connecting pins 32, each transparent capacitor 31 is located in the projection area 11 of the transparent base layer 1, and each connecting pin 32 is located in the pin area 12 of the transparent base layer 1, and each connecting pin 32 is connected to the corresponding transparent capacitor 31.

[0040] The various connecting pins 32 of the transparent touch layer 3 are used to connect to the flexible circuit board 7, so that the extended HUD display component is connected to the car controller through the flexible circuit board 7, so that the touch signals sensed by the various transparent capacitors 31 of the transparent touch layer 3 can be transmitted to the car controller through the flexible circuit board 7, so that the car controller controls the display information of the HUD according to the touch signals.

[0041] In this embodiment, each transparent capacitor 31 is made by etching an ITO thin film. Preferably, each connecting pin 32 can also be made by etching the same ITO thin film as the transparent capacitor 31. The thickness of the ITO thin film is 50-100 nm.

[0042] The anti-reflection layer 4 only covers the transparent capacitors 31 of the transparent touch layer 3 located in the projection area 11 and the gap areas between the transparent capacitors 31, and does not need to cover the connecting pins 32 of the transparent touch layer 3 located in the pin area 12, so that the connecting pins 32 can be connected to the flexible circuit board 7.

[0043] The extended HUD display assembly is attached to the windshield, with one side edge of the extended HUD display assembly connected to the flexible circuit board 7 facing the car center console as much as possible.

[0044] like Figure 3 As shown, the anti-reflection layer 4 is formed by multiple layers of high-refractive-index films 41 and multiple layers of low-refractive-index films 42 , and the layers of high-refractive-index films 41 and the layers of low-refractive-index films 42 are alternately stacked in sequence.

[0045] The anti-reflection layer 4 of the present invention is based on the light interference effect. Due to the difference in refractive index between the adjacent high-refractive-index films 41 and the low-refractive-index films 42, reflected light will be formed at the interface. By reasonably setting the thickness of each layer of high-refractive-index film 41 and each layer of low-refractive-index film 42, the phase difference between the two adjacent beams of reflected light satisfies 1 / 4 wavelength, thereby generating a light interference effect to offset each other and achieve the purpose of reducing reflected light.

[0046] The high refractive index film 41 may be, but is not limited to, an antimony trioxide film, a tin dioxide film, a lead oxide film, a tantalum pentoxide film, a niobium pentoxide film, a zinc oxide film, a titanium dioxide film, a cerium dioxide film or a zirconium dioxide film, and the low refractive index film 42 may be, but is not limited to, a silicon dioxide film, a magnesium oxide film, an aluminum oxide film, a yttrium oxide film, a lanthanum oxide film or an indium oxide film, and the like.

[0047] In this embodiment, the high refractive index film 41 is a tantalum pentoxide film, and the low refractive index film 42 is a magnesium fluoride film. The tantalum pentoxide film and the magnesium fluoride film each have three layers, which are alternately stacked in sequence. The thickness of each layer of tantalum pentoxide film and each layer of magnesium fluoride film is between 100-200 nm.

[0048] In this embodiment, the transparent base layer 1 is a plastic substrate or a glass substrate. The plastic substrate is mainly a flexible substrate, such as a plastic film such as PET, PC or PV, and the glass substrate is mainly a rigid substrate, such as a glass substrate such as silica or borosilicate. Of course, when the thickness of the glass substrate reaches 0.2 mm or less, it can exhibit a certain flexibility, so the glass substrate can also be a flexible substrate.

[0049] Example 2

[0050] As an optimization solution of embodiment 1, in this embodiment, if Figure 4 As shown, the expanded HUD display assembly further includes a release film layer 5 , which is disposed on a surface of the pressure-sensitive adhesive layer 2 that is away from the transparent base layer 1 .

[0051] The release film layer 5 is mainly used to protect the pressure-sensitive adhesive layer 2 before the expanded HUD display assembly is attached to prevent the pressure-sensitive adhesive layer 2 from being contaminated by dust or scratched by foreign objects; the release film layer 5 needs to be torn off first when the expanded HUD display assembly is attached.

[0052] Example 3

[0053] As an optimization solution of embodiment 1 or embodiment 2, in this embodiment, if Figure 5 As shown, the extended HUD display assembly further includes a silane coupling agent layer 6 , which is disposed between the transparent base layer 1 and the transparent touch layer 3 .

[0054] The silane coupling agent layer 6 is mainly used to improve the interface performance between the transparent base layer 1 and the transparent touch layer 3, so as to increase the adhesion between the transparent base layer 1 and the transparent touch layer 3, thereby preventing the transparent touch layer 3 from falling off from the transparent base layer 1 under long-term use and sunlight exposure.

[0055] In this embodiment, the silane coupling agent layer 6 is a methacryloxysilane layer, and its thickness is 500-600 nm.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention rather than to limit them. Although the embodiments of the present invention are described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An expandable HUD display assembly, characterized in that: include: A transparent base layer having a first surface and a second surface opposite to each other; A pressure-sensitive adhesive layer is disposed on the first surface of the transparent base layer; a transparent touch layer, disposed on the second surface of the transparent base layer; an anti-reflection layer, disposed on a surface of the transparent touch layer away from the transparent base layer; The transparent base layer includes a projection area and a pin area, and the pin area is located on one side edge of the projection area; the transparent touch layer includes a plurality of transparent capacitors and a plurality of connecting pins, each transparent capacitor is located in the projection area of ​​the transparent base layer, each connecting pin is located in the pin area of ​​the transparent base layer, and each connecting pin is connected to a corresponding transparent capacitor; The connecting pins of the transparent touch layer are used to connect to a flexible circuit board, so that the extended HUD display component is connected to a car controller through the flexible circuit board, so that the touch signals sensed by the transparent capacitors of the transparent touch layer can be transmitted to the car controller through the flexible circuit board, so that the car controller controls the display information of the HUD according to the touch signals; The anti-reflection layer only covers the transparent capacitors of the transparent touch layer located in the projection area and the gap areas between the transparent capacitors, and does not need to cover the connecting pins of the transparent touch layer located in the pin area, so that the connecting pins can be connected to the flexible circuit board.

2. The expandable HUD display assembly according to claim 1, wherein: The anti-reflection layer is formed by multiple layers of high-refractive-index films and multiple layers of low-refractive-index films, and the layers of high-refractive-index films and the layers of low-refractive-index films are alternately stacked in sequence.

3. The expandable HUD display assembly according to claim 2, characterized in that: The high refractive index film is an antimony trioxide film, a tin dioxide film, a lead oxide film, a tantalum pentoxide film, a niobium pentoxide film, a zinc oxide film, a titanium dioxide film, a cerium dioxide film or a zirconium dioxide film.

4. The expandable HUD display assembly according to claim 2, wherein: The low refractive index film is a silicon dioxide film, a magnesium oxide film, an aluminum oxide film, a yttrium oxide film, a lanthanum oxide film or an indium oxide film.

5. The expandable HUD display assembly according to claim 1, characterized in that: The expanded HUD display assembly further includes a release film layer, which is disposed on a surface of the pressure-sensitive adhesive layer that is away from the transparent base layer.

6. The expandable HUD display assembly according to claim 1, characterized in that: The extended HUD display assembly further includes a silane coupling agent layer, which is disposed between the transparent base layer and the transparent touch layer.

7. The expandable HUD display assembly according to claim 6, wherein: The silane coupling agent layer is a methacryloxysilane layer.

8. The expandable HUD display assembly according to claim 6 or 7, characterized in that: The thickness of the silane coupling agent layer is 500-600 nm.

9. The expandable HUD display assembly according to claim 1, wherein: The transparent base layer is a plastic substrate or a glass substrate.

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