Vehicle-mounted touch screen assembly with soft light effect

Abstract

The utility model discloses a vehicle-mounted touch screen component with a soft light effect, which comprises a cover plate, a cover plate back ink layer is arranged on the lower surface of the cover plate, a plurality of light-transmitting key characters are arranged on the cover plate back ink layer, a double-sided adhesive layer is arranged on the lower surface of the cover plate back ink layer, and a plurality of light-transmitting key characters are arranged on the double-sided adhesive layer. A glass SENSOR layer is arranged on the lower surface of the double-sided adhesive layer, a plurality of independent diffusion ink layers are arranged on the glass SENSOR layer, and the positions of the diffusion ink layers are in one-to-one correspondence with the positions of the light-transmitting key characters. Backlight is projected to the diffusion ink layer, and the backlight brings the visual effect of diffusion soft light through the diffusion ink layer. The thickness of the diffusion ink layer is several microns, so that the structure design of a customer and the fitting process of a TFT (Thin Film Transistor) or sensor glass at the rear section are not influenced. The silk-screen printing ink is a mature process, so that the production is easy to realize, the quality is well controlled, and the cost can be controlled to be very low.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted touch screen, more specifically, to a vehicle-mounted touch screen component with a soft light effect. Background Art

[0002] At present, touch screens with buttons are increasingly widely used in automotive electronic devices. The light-transmitting buttons of such touch screens are generally matched with backlights. Since the light directly shining on the button characters will be glaring and the light is not soft enough, a diffusion film is usually attached between the bottom of the touch screen button area and the light to achieve a uniform light effect. However, the diffusion film is attached to the bottom of the touch screen button through double-sided adhesive, which will protrude from the structure and the client case design needs to avoid it. The diffusion film cannot appear in the bonding area with the TFT or sensor, otherwise it will not fit. In addition, the cost of attaching the diffusion film is relatively high, including the cost of the diffusion film raw materials, double-sided adhesive, die-cutting shape and the diffusion film.

[0003] Chinese invention patent document CN114168013A discloses a manufacturing process of an OGS touch screen with a uniform light effect, which includes the following steps in sequence: tempering of a glass substrate, bottom coating, BM photolithography patterning, sputtering of an image-eliminating film layer, sputtering of an ITO1 film layer, making an OC1 insulating layer, sputtering of an ITO2 film layer, making an OC2 layer, sputtering of a metal film layer, post-image elimination, printing, and a CNC process, characterized in that the following steps are also included between the BM photolithography patterning and the sputtering of the image-eliminating film layer process: the first step: printing an acid-resistant ink coating, printing a layer of acid-resistant ink on the large product sheet formed after the BM photolithography patterning process The coating keeps the key graphic area in a non-printing state; the second step: screen printing frosting, making a frosting paste screen printing screen, coating the screen printing screen with acid-resistant photosensitive glue, the screen printing screen pattern only hollows out the key graphic area, and the frosting paste is printed on the glass substrate of the product large-scale key graphic area through the screen printing screen; the third step: frosting etching, frosting etching the surface of the glass substrate in the key graphic area, keeping the frosting paste on the glass substrate for 15 to 65 seconds; the fourth step: cleaning, respectively cleaning the frosting paste in the key graphic area and the acid-resistant ink coating in the unfrosted area; the fifth step: drying, using a dryer for drying. The thickness of the acid-resistant ink coating is 3 to 5um. In the BM photolithography pattern process, alignment targets are set around the product large piece, and in the first and second steps, a CCD image sensor is used to locate the alignment targets. In the first step, a stainless steel chrome-plated screen is used to print the acid-resistant ink coating, and the screen mesh number of the stainless steel chrome-plated screen is 300-380 meshes. In the second step, the screen printing screen adopts a stainless steel chrome-plated screen, the mesh number of the stainless steel chrome-plated screen is 100-250 meshes, and the screen tension is 9-13kg / cm2. The mesh number of the stainless steel chrome-plated screen is 100-200 meshes. The distance between the stainless steel chrome-plated screen and the large piece of the product is 1-3mm. In the second step, the particle size range of the frosting paste is 0.03-0.08mm, the viscosity range is 7000-11000cp, and the use temperature of the frosting paste is controlled at 20-35°C. In the second step, the coating thickness of the acid-resistant photosensitive adhesive is 1.5-2.5mm, and it is coated 2-5 times. In the third step, the cleaning process is divided into four sections. The first section is pure water cleaning. The cleaning equipment cleans the frosting paste in the button graphic area through spraying, water knife and air knife treatment. The second section is weak alkaline liquid cleaning. The acid-resistant ink coating in the unfrosted area is peeled off through spraying, water knife and air knife treatment. The third and fourth sections are both pure water cleaning. The residual weak alkaline liquid is cleaned through spraying, water knife and air knife treatment.

[0004] Obviously, the OGS touch screen achieves uniform and soft light effects through diffusion lamp posts, but cannot solve the cost problem and design interference problem of the existing diffusion film. Utility Model Content

[0005] Based on this, it is necessary to provide a vehicle-mounted touch screen assembly with a soft light effect for the above technical problems. The vehicle-mounted touch screen assembly with a soft light effect comprises a cover plate, a cover plate back ink layer is provided on the lower surface of the cover plate, a plurality of light-transmitting key characters are provided on the cover plate back ink layer, a double-sided adhesive layer is provided on the lower surface of the cover plate back ink layer, a glass SENSOR layer is provided on the lower surface of the double-sided adhesive layer, a plurality of independent diffusion ink layers are provided on the glass SENSOR layer, and the positions of the diffusion ink layers correspond to the positions of the light-transmitting key characters one by one. The backlight is projected onto the diffusion ink layer, and the backlight brings a diffuse soft light visual effect through the diffusion ink layer. Since the thickness of the diffusion ink layer is several microns, it will not affect the customer's structural design and the subsequent TFT or sensor glass bonding process. Since silk-screen ink is a mature process, it is easy to produce and control the quality, and the cost can be controlled very low.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A vehicle-mounted touch screen assembly with a soft light effect, characterized in that the vehicle-mounted touch screen assembly with a soft light effect comprises a cover plate, a cover plate back ink layer is provided on the lower surface of the cover plate, a plurality of light-transmitting key characters are provided on the cover plate back ink layer, a double-sided adhesive layer is provided on the lower surface of the cover plate back ink layer, a glass SENSOR layer is provided on the lower surface of the double-sided adhesive layer, a plurality of independent diffusion ink layers are provided on the glass SENSOR layer, and positions of the diffusion ink layers correspond one-to-one to positions of the light-transmitting key characters.

[0008] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, an FPC board is provided at the edge of the SENSOR layer.

[0009] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the thickness of the diffusion ink layer is 4 microns to 10 microns.

[0010] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the thickness of the diffusion ink layer is 6 microns.

[0011] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the shape of the diffusion ink layer is adapted to the shape of the light-transmitting key characters.

[0012] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, a light-scattering groove is provided on the lower surface of the diffusion ink layer.

[0013] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the light diffusion groove is rectangular.

[0014] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the light diffusion groove is in an arc shape.

[0015] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the depth of the light diffusion groove is 0.5 micrometer to 1 micrometer.

[0016] As a preferred implementation of the vehicle-mounted touch screen assembly with soft light effect provided by the utility model, the depth of the light-scattering groove is 0.8 micrometers.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a vehicle-mounted touch screen assembly with a soft light effect. The backlight is projected onto a diffusion ink layer, which can be white or colored. The backlight brings a diffused soft light visual effect through the diffusion ink layer. Since the thickness of the diffusion ink layer is several microns, it will not affect the customer's structural design and the lamination process of the subsequent TFT or sensor glass. Since the silk screen printing ink is a mature process, it is easy to realize production and control the quality, and the cost can be controlled very low.

[0019] In addition, a light-scattering groove may be provided on the lower surface of the diffusion ink layer. The light-scattering groove is rectangular. The depth of the light-scattering groove is 0.5 micrometer to 1 micrometer. Preferably, the depth of the light-scattering groove is 0.8 micrometer. By laser etching, a light-scattering groove is formed on the diffusion ink layer. By using this light-scattering groove, the backlight can be further diffused, and the soft light effect of the diffusion ink layer can be further improved.

[0020] In addition, the light-scattering groove can be made into an arc shape. By using the arc-shaped light-scattering groove, the backlight can be further diffused, and the soft light effect of the diffusion ink layer can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the hierarchical structure of the vehicle-mounted touch screen assembly with soft light effect of the utility model;

[0023] Figure 2 for Figure 1 The structural diagram of the vehicle-mounted touch screen assembly with soft light effect in FIG. 1 is another viewing angle;

[0024] Figure 3 for Figure 1 A schematic diagram of a hierarchical structure of another embodiment of a vehicle-mounted touch screen assembly with a soft light effect;

[0025] Figure 4 for Figure 3 A detailed enlarged schematic diagram of area A of the hierarchical structure schematic diagram of the vehicle-mounted touch screen component with a soft light effect;

[0026] Figure 5 for Figure 1 A schematic diagram of a hierarchical structure of another embodiment of a vehicle-mounted touch screen assembly with a soft light effect;

[0027] Figure 6 for Figure 5 A detailed enlarged schematic diagram of area B of the hierarchical structure schematic diagram of the vehicle-mounted touch screen component with a soft light effect;

[0028] The markings in the figure are as follows: 1. Cover plate; 1S, translucent key characters; 2. Ink layer on the back of the cover plate; 3. Double-sided adhesive layer; 4. Glass sensor layer; 5. Diffusion ink layer; 51, light-scattering groove; 6. FPC board. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background technology, in the prior art, for vehicle-mounted electronic equipment, touch screens with buttons are increasingly widely used. The light-transmitting buttons of such touch screens are generally matched with backlights. Since the light directly shining on the key characters will be more dazzling and the light is not soft enough, generally, a diffusion film will be attached between the bottom of the key area of ​​the touch screen and the light to achieve a uniform light effect. However, the diffusion film is attached to the bottom of the touch screen buttons through double-sided adhesive, which will protrude from the structure, and the client housing design needs to avoid it, and the diffusion film cannot appear in the bonding area with the TFT or sensor, otherwise it will not fit. In addition, the cost of attaching the diffusion film is relatively high, including the cost of the diffusion film raw materials, double-sided adhesive, die-cutting shape and the diffusion film.

[0031] In order to solve this technical problem, the utility model provides a vehicle-mounted touch screen assembly with a soft light effect, including a cover plate 1, a cover plate back ink layer 2 is provided on the lower surface of the cover plate 1, a plurality of light-transmitting key characters 1S are provided on the cover plate back ink layer 2, a double-sided adhesive layer 3 is provided on the lower surface of the cover plate back ink layer 2, a glass SENSOR layer 4 is provided on the lower surface of the double-sided adhesive layer 3, a plurality of independent diffusion ink layers 5 are provided on the glass SENSOR layer 4, and the positions of the diffusion ink layers 5 correspond one-to-one to the positions of the light-transmitting key characters 1S.

[0032] Through the above structural design, the backlight G is projected onto the diffusion ink layer 5, and the backlight G brings a diffused soft light visual effect through the diffusion ink layer 5. Since the thickness of the diffusion ink layer 5 is several microns, it will not affect the customer's structural design and the subsequent TFT or sensor glass bonding process. Since silk screen ink is a mature process, it is easy to achieve production and control quality, and the cost can be controlled very low.

[0033] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] Example 1

[0037] like Figure 1 and Figure 2As shown, the vehicle-mounted touch screen assembly with soft light effect includes a cover plate 1, a cover plate back ink layer 2 is provided on the lower surface of the cover plate 1, a plurality of light-transmitting key characters 1S are provided on the cover plate back ink layer 2, a double-sided adhesive layer 3 is provided on the lower surface of the cover plate back ink layer 2, a glass SENSOR layer 4 is provided on the lower surface of the double-sided adhesive layer 3, a plurality of independent diffusion ink layers 5 are provided on the glass SENSOR layer 4, and the positions of the diffusion ink layers 5 correspond one-to-one to the positions of the light-transmitting key characters 1S.

[0038] In addition, an FPC board 6 is provided at the edge of the SENSOR layer 4 .

[0039] It should be noted that the thickness of the diffusion ink layer 5 is 4 micrometers to 10 micrometers. Preferably, the thickness of the diffusion ink layer 5 is 6 micrometers.

[0040] In addition, the shape of the diffusion ink layer 5 is adapted to the shape of the light-transmitting key character 1S.

[0041] The working mode of this embodiment is described below.

[0042] like Figure 1 As shown, the backlight G is projected onto the diffusion ink layer 5, which can be white or colored. The backlight G brings a diffused soft light visual effect through the diffusion ink layer 5. Since the thickness of the diffusion ink layer 5 is several microns, it will not affect the customer's structural design and the subsequent TFT or sensor glass bonding process. Since silk screen ink is a mature process, it is easy to produce and control the quality, and the cost can be controlled very low.

[0043] Example 2

[0044] The vehicle-mounted touch screen assembly with soft light effect provided in Example 1 is further optimized. Specifically, a light scattering groove 51 is provided on the lower surface of the diffusion ink layer 5 .

[0045] It should be noted that the light-scattering groove 51 is rectangular.

[0046] In addition, the depth of the light-scattering groove 51 is 0.5 micrometer to 1 micrometer. Preferably, the depth of the light-scattering groove 51 is 0.8 micrometer.

[0047] The working mode of this embodiment is described below.

[0048] Laser etching is used to form a light-scattering groove 51 on the diffusion ink layer 5 . The light-scattering groove 51 can be used to further diffuse the backlight G, thereby further improving the soft light effect of the diffusion ink layer 5 .

[0049] Example 3

[0050] The vehicle-mounted touch screen assembly with soft light effect provided in Embodiment 1 or 2 is further optimized. Specifically, the light scattering groove 51 is in an arc shape.

[0051] The working mode of this embodiment is described below.

[0052] The arc-shaped light-scattering groove 51 can be used to further diffuse the backlight G, thereby further improving the soft light effect of the diffusion ink layer 5 .

[0053] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A vehicle-mounted touch screen assembly with a soft light effect, characterized in that: The vehicle-mounted touch screen assembly with a soft light effect comprises a cover plate (1), a cover plate back ink layer (2) is provided on the lower surface of the cover plate (1), a plurality of light-transmitting key characters (1S) are provided on the cover plate back ink layer (2), a double-sided adhesive layer (3) is provided on the lower surface of the cover plate back ink layer (2), a glass sensor layer (4) is provided on the lower surface of the double-sided adhesive layer (3), a plurality of independent diffusion ink layers (5) are provided on the glass sensor layer (4), and the positions of the diffusion ink layers (5) correspond one-to-one to the positions of the light-transmitting key characters (1S).

2. The vehicle-mounted touch screen assembly with soft light effect according to claim 1, characterized in that: An FPC board (6) is provided at the edge of the SENSOR layer (4).

3. The vehicle-mounted touch screen assembly with soft light effect according to claim 1, characterized in that: The diffusion ink layer (5) has a thickness of 4 micrometers to 10 micrometers.

4. The vehicle-mounted touch screen assembly with soft light effect according to claim 2, characterized in that: The thickness of the diffusion ink layer (5) is 6 microns.

5. The vehicle-mounted touch screen assembly with soft light effect according to claim 1, characterized in that: The shape of the diffusion ink layer (5) is adapted to the shape of the light-transmitting key character (1S).

6. The vehicle-mounted touch screen assembly with soft light effect according to claim 1, characterized in that: A light-scattering groove (51) is provided on the lower surface of the diffusion ink layer (5).

7. The vehicle-mounted touch screen assembly with soft light effect according to claim 6, characterized in that: The astigmatism groove (51) is rectangular.

8. The vehicle-mounted touch screen assembly with soft light effect according to claim 6, characterized in that: The astigmatism groove (51) is in the shape of an arc.

9. The vehicle-mounted touch screen assembly with soft light effect according to claim 6, characterized in that: The depth of the light-scattering groove (51) is 0.5 micrometer to 1 micrometer.

10. The vehicle-mounted touch screen assembly with soft light effect according to claim 9, characterized in that: The depth of the light-scattering groove (51) is 0.8 micrometers.

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