Vehicle-mounted transparent display touch device, display device and carrier

Abstract

The utility model discloses a vehicle-mounted transparent display touch control device, a display device and a carrier, the touch control device comprises a transparent display layer, a transparent film base material layer, a first conducting layer and a second conducting layer, the first conducting layer and the second conducting layer are arranged on two sides of the transparent film base material layer, and the second conducting layer is adjacent to a transparent bonding layer. The first conducting layer is provided with a graphical structure and is provided with a plurality of miniature LED lamp beads with the irradiation direction facing the second conducting layer, and a light guide diffusion layer is arranged at the position, corresponding to the miniature LED lamp beads, of the second conducting layer; a transparent adhesive layer; and a transparent touch layer. The full-transparent light-emitting display screen is simple in structure, full-transparent, good in light-emitting display effect, high in touch sensitivity and suitable for being used in a vehicle-mounted environment.

Description

Technical Field

[0001] This utility model belongs to the field of flexible functional circuit technology, specifically relating to a vehicle-mounted transparent display touch device, display device, and carrier. Background Technology

[0002] Flexible functional circuits are widely used in instrumentation, home appliances, and automotive electronics due to their advantages such as light weight, thinness, and ease of integration with structural components. Traditional flexible circuits use a PI substrate with copper plating on its surface, followed by acid etching to obtain the desired conductive lines. However, with increasing considerations for environmental protection and cost, printed flexible functional circuits are becoming more widely used. Currently, the most common flexible circuit functions include touch control, display, and sensing; their circuit structure is generally achieved by patterning conductive materials on a thin-film substrate, including conductive silver paste, ITO, PEDOT, and metal mesh.

[0003] With increasingly stringent requirements for functionality and aesthetics in modern electronic circuits, transparent displays and touchscreens have become a significant application area. Automotive structural components, in particular, demand transparent appearances along with touch and display capabilities. However, traditional PI-based flexible circuits, with their light yellow substrate and typically line widths exceeding 50μm, are difficult to fabricate into transparent circuits. Furthermore, while EL display light-emitting devices can be integrated onto flexible thin films, their luminous intensity and lifespan are relatively low, failing to meet automotive requirements. Therefore, integrating and fabricating transparent circuits with high luminous intensity, uniform light emission, and touch functionality onto transparent substrates has become a major challenge for automotive interactive components.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an in-vehicle transparent display touch control device, a display device, and a carrier.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a vehicle-mounted transparent display touch device, display device and carrier, which aims to combine high-brightness micro LED display with transparent touch to obtain a transparent circuit with high light output and uniform display, and integrate high-sensitivity touch function.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] In-vehicle transparent display touch device, including the following sequentially arranged components:

[0009] A transparent display layer includes a transparent thin film substrate layer and a first conductive layer and a second conductive layer disposed on both sides. The second conductive layer is adjacent to a transparent adhesive layer. The first conductive layer has a patterned structure and is provided with a plurality of micro LED beads with the illumination direction facing the second conductive layer. A light guiding and diffusion layer is provided on the second conductive layer corresponding to the position of the micro LED beads.

[0010] Transparent adhesive layer;

[0011] Transparent touch layer.

[0012] In one or more embodiments of this utility model, the light-guiding diffusion layer is strip-shaped and covers adjacently the light spot center region and / or the connection region of the light spot center region of the micro LED lamp bead.

[0013] In one or more embodiments of this utility model, the light-guiding diffusion layer is block-shaped and corresponds one next to another to the micro LED beads.

[0014] In one or more embodiments of this utility model, at least some of the micro LED beads are combined to form a geometric structure, and the light-guiding and diffusion layer is strip-shaped and covers the side strip forming the geometric structure.

[0015] In one or more embodiments of this utility model, the geometric structure is a polygonal structure or a radial structure, with sides that are straight lines or curves. Examples include triangular structures, quadrilateral structures, or triangular structures with rounded corner transitions, quadrilateral structures with rounded corner transitions, or zigzag radial structures such as spokes.

[0016] In one or more embodiments of the present invention, the transparent touch layer includes a transparent thin film substrate layer adjacent to the transparent adhesive layer and an upper surface conductive layer formed thereon.

[0017] In one or more embodiments of this utility model, the upper surface conductive layer is a self-capacitance structure layer with a patterned structure.

[0018] In one or more embodiments of this utility model, the touch electrode of the upper surface conductive layer is disposed directly above the light-guiding diffusion layer.

[0019] In one or more embodiments of this utility model, the vehicle-mounted transparent display touch device includes a transparent display layer, a transparent adhesive layer, and a transparent touch layer arranged sequentially. The transparent display layer is composed of a transparent substrate and transparent conductive layers on its upper and lower surfaces. The lower conductive layer has a patterned structure, and bottom-emitting micro-LED beads are mounted at selected locations (the location depends on the pattern display requirements). The upper conductive layer is a completely conductive, unpatterned structure, and a patterned light-guiding and diffusion layer is prepared at the corresponding positions of the bottom LED beads. The transparent touch layer mainly consists of a transparent substrate layer and a transparent upper conductive layer with a patterned upper surface. A transparent adhesive layer is disposed between the transparent display layer and the transparent touch layer.

[0020] In one or more embodiments of this utility model, the substrate of the transparent display layer and the transparent touch layer is a transparent thin film material, the raw materials of which may include PC, PET, PEN, TPU, MPI and other materials, and the thickness ranges from 0.05mm to 0.5mm; preferably, a PET substrate layer is used, and the thickness is selected as 0.05mm.

[0021] In one or more embodiments of this utility model, the upper surface conductive layer is made of a transparent conductive material, which may include ITO, metal mesh, PEDOT, silver nanowires, etc., with a sheet resistance ranging from 0.01Ω / □ to 200Ω / □; preferably, the transparent conductive layer with a metal mesh structure has a sheet resistance of 5Ω / □.

[0022] In one or more embodiments of this utility model, the LED beads mounted on the first conductive layer of the transparent display layer are mini LEDs or micro LEDs, which are mounted to selected positions by die bonding, hot pressing, or soldering. Preferably, mini LED beads with a size of 0.2mm are used, and they are mounted to the first conductive layer of the transparent display layer by die bonding.

[0023] In one or more embodiments of this utility model, the light-guiding and diffusing layer on the upper surface of the transparent display layer is made of light-guiding and diffusing ink material, which is patterned by printing or dispensing, or directly bonded with a patterned light-guiding and diffusing film; preferably, the light-guiding and diffusing ink is patterned by dispensing. Furthermore, the light-guiding and diffusing ink is positioned directly above the LED beads on the lower surface, diffusing and uniformly dispersing the light emitted by the bottom LEDs.

[0024] In one or more embodiments of this invention, the touch function of the transparent touch layer is achieved through a patterned structure of the upper surface conductive layer. It has a self-capacitance structure, and the touch electrodes are positioned directly above the light-guiding and diffusion layer.

[0025] In one or more embodiments of this utility model, the raw material for the transparent adhesive layer is obtained by coating or laminating optical UV adhesive or OCA optical adhesive film, and its thickness ranges from 0.2 mm to 0.5 mm. Preferably, optical UV adhesive is used for bonding, and the thickness is 0.3 mm.

[0026] In one or more embodiments of the present invention, the display device includes a display body and an in-vehicle transparent display touch device connected to the display body.

[0027] In one or more embodiments of this utility model, the carrier includes a touch display device.

[0028] To achieve the above objectives, this utility model discloses an in-vehicle transparent display and touch circuit.

[0029] Compared with existing technologies, the vehicle-mounted transparent display touch device, display device, and carrier of this utility model have the advantages of fully transparent functional circuits, high brightness of the display pattern, uniform light emission, and high touch sensitivity; moreover, the light-emitting device has little interference with touch control; at the same time, the overall device has a small thickness, which allows for better integration with structural components. The overall optical transmittance of this utility model device reaches over 70%, and the overall thickness is less than 1mm. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the cross-sectional structure of the transparent display and touch circuit in one embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the planar structure of the transparent display and touch circuit in one embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structural partitioning of the conductive layer on the upper surface of the transparent touch layer in one embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Transparent display layer; 101. Transparent thin film substrate; 102. First conductive layer; 103. Second conductive layer; 12. Micro LED beads; 13. Light guiding and diffusion layer; 2. Transparent touch layer; 201. Transparent thin film substrate; 202. Upper surface conductive layer; 2021. Touch area of ​​the upper surface conductive layer of the transparent touch layer; 2022. Grounding area of ​​the upper surface conductive layer of the transparent touch layer; 3. Transparent adhesive layer; 4. Transparent area of ​​transparent display and touch circuitry. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0037] like Figure 1 As shown, the vehicle-mounted transparent display touch device of this utility model may include a transparent display layer 1, a transparent adhesive layer 3, and a transparent touch layer 2. The transparent display layer 1 is composed of a transparent thin film substrate 101 and a second conductive layer 103 and a first conductive layer 102 on its upper and lower surfaces. The transparent thin film substrate 101 is made of optical PET material with a transmittance of 90%, preferably an optical PET film with a thickness of 0.05 mm, model TOYOBO A4360. The first conductive layer 102 adopts a metal mesh structure with a sheet resistance range of 0.01Ω / □ to 200Ω / □; preferably, a metal mesh circuit with a sheet resistance of 5Ω / □ is used. The first conductive layer 102 is the conductive circuit layer of the miniature LED beads 12, having a circuit wiring structure, and the miniature LED beads 12 are mounted onto the first conductive layer 102 using a die-bonding method. The miniature LED beads 12 are bottom-emitting mini LEDs with a size of 0.2 mm. The second conductive layer 103 also adopts a metal mesh structure, and its wiring is a full-surface conductive structure without patterning; as a signal shielding layer, it eliminates electromagnetic interference from the LED bead 12 circuit to the transparent touch layer 2. A light-guiding diffusion layer 13 is prepared on the second conductive layer 103. Preferably, the light-guiding diffusion layer 13 is made of light-guiding diffusion ink material, and the light-guiding diffusion ink is patterned by dispensing.

[0038] As one implementation method, such as Figure 2 As shown, the light guide diffusion layer 13 is positioned directly above the micro LED beads 12, covering the area between the LED beads 12 and presenting the desired pattern. The diffusion layer 13 diffuses and evens out the light emitted by the bottom LEDs, making the entire pattern emit light uniformly.

[0039] In one embodiment, the transparent touch layer 2 is composed of a transparent thin film substrate 201 and an upper surface conductive layer 202 on its upper surface. The transparent thin film substrate 201 is an optical PET film with a thickness of 0.05 mm, model TOYOBO A4360. The upper surface conductive layer 202 also uses a metal mesh, preferably with a sheet resistance of 10 Ω / □. This upper surface conductive layer 202 has a patterned structure, such as... Figure 3 As shown, the area is divided into a touch electrode 2021 region and a ground wire 2022 region, forming a self-capacitance structure. The touch electrode 2021 region can be a circular structure, covering the area of ​​the light guide diffusion layer 13.

[0040] The transparent adhesive layer 3 uses optical UV adhesive to bond the transparent display layer 1 and the transparent touch layer 2 together, and its thickness is 0.3mm; thus, the overall thickness of the transparent display and touch circuit is controlled within 1mm.

[0041] This utility model provides a vehicle-mounted transparent display touch device where, except for the graphic areas requiring illumination, the rest of the circuitry is completely transparent. Simultaneously, the use of mini LEDs and light-guiding diffusion ink gives the luminous areas advantages such as high luminous intensity and uniform illumination. The shielding layer on the upper surface of the transparent display layer effectively reduces electromagnetic interference from the LED circuitry to the touch layer, thereby ensuring good touch sensitivity. The circuit boasts high overall transmittance and thinness, allowing for integration with various structural components, particularly vehicle-mounted central control transparent structural components, offering advantages such as aesthetics and functional interactivity.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle-mounted transparent display touch device, characterized in that, Including sequential settings: A transparent display layer includes a transparent thin film substrate layer and a first conductive layer and a second conductive layer disposed on both sides. The second conductive layer is adjacent to a transparent adhesive layer. The first conductive layer has a patterned structure and is provided with a plurality of micro LED beads with the illumination direction facing the second conductive layer. A light guiding and diffusion layer is provided on the second conductive layer corresponding to the position of the micro LED beads. Transparent adhesive layer; Transparent touch layer.

2. The vehicle-mounted transparent display touch device according to claim 1, characterized in that, The light-guiding diffusion layer is in the form of strips and is adjacent to the central area of ​​the light spot of the micro LED beads and / or the connecting area of ​​the central area of ​​the light spot.

3. The vehicle-mounted transparent display touch device according to claim 2, characterized in that, The light-guiding diffusion layer is block-shaped and corresponds one to one miniature LED beads.

4. The vehicle-mounted transparent display touch device according to claim 2, characterized in that, At least some of the micro LED beads are combined to form a geometric structure, and the light-guiding and diffusion layer is strip-shaped and covers the side strip forming the geometric structure.

5. The vehicle-mounted transparent display touch device according to claim 4, characterized in that, The geometric structure is a polygonal or radial structure, with its edges being straight lines or curves.

6. The vehicle-mounted transparent display touch device according to claim 1, characterized in that, The transparent touch layer includes a transparent thin film substrate layer adjacent to the transparent adhesive layer and an upper surface conductive layer formed thereon.

7. The vehicle-mounted transparent display touch device according to claim 6, characterized in that, The upper surface conductive layer is a self-capacitance structure layer with a patterned structure.

8. The vehicle-mounted transparent display touch device according to claim 7, characterized in that, The touch electrodes of the upper surface conductive layer are positioned directly above the light-guiding diffusion layer.

9. A display device, comprising a display body and an in-vehicle transparent display touch device according to any one of claims 1-8 connected to the display body.

10. A carrier, including the touch display device according to claim 9.

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