Vehicle-mounted touch panel

Abstract

The utility model relates to a vehicle-mounted touch panel which comprises a cover plate layer and a sensor layer. The cover plate layer comprises a transparent film material printed with black ink and white ink and a light-transmitting panel; a plurality of key positions are printed on the sensor layer, each key position protrudes towards the cover plate layer, the protruding height of each key position is 1 mm, and the diameter of each key position is 15 mm. A touch screen produced by the vehicle-mounted touch panel provided by the utility model is sensitive in touch, the'convex 'touch key position is good in touch experience and high in cost performance, the printing size with the convex height of 1mm and the diameter of 15mm is adopted, the phenomenon that the vehicle-mounted touch panel is easy to crack after being printed and during use can be avoided, and the vehicle-mounted touch panel with the advantages is ensured to be longer in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch panel field, especially a kind of vehicle-mounted touch panel. BACKGROUND

[0002] IME technology (In-Mold Electronics), also known as in-mold electronics technology, is the combination of traditional in-mold decoration (IMD, In-Mold Decoration) technology and flexible printed circuit. IME technology realizes the production of intelligent surface by printing high-performance electronic paste on IMD film and concentrating electronic components on one component. This technology not only has decorative aesthetics, but also has electronic functionality, and is one of the key technologies to realize intelligent surface. By combining IME technology and touch technology, a vehicle touch panel with "raised" touch key positions is researched, which has the advantages of beautiful appearance, good touch experience, stable performance and low production cost, and has a broad market prospect.

[0003] However, the yield of such raised touch key positions is not high during production, and they are prone to cracking after printing. Even if they are produced without damage, they are also prone to cracking and failure during use. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a vehicle-mounted touch panel to solve at least one of the above problems.

[0005] The vehicle-mounted touch panel provided by the utility model comprises a cover plate layer and a sensor layer.

[0006] The sensor layer is provided with a plurality of key positions, each of which is raised towards the cover plate layer, and the raised height of each key position is 1mm and the diameter is 15mm.

[0007] In one embodiment, the cover plate layer is provided with an icon corresponding to each key position, and the raised height of each icon is 1mm and the diameter is 15-17mm.

[0008] In one embodiment, the sensor layer further comprises a flexible circuit board, and the flexible circuit board is connected to the key positions through a silver paste printed circuit, and the printed thickness of the silver paste printed circuit is 6-10μm.

[0009] In one embodiment, the transparent film material and the light-transmitting panel are both made of polycarbonate.

[0010] In one embodiment, the key positions are located below the transparent film material printed with white ink.

[0011] In one of the embodiments, the sensor layer uses a polycarbonate film with a thickness of 0.2 mm as a base material.

[0012] The technical scheme provided in the embodiment of the utility model brings the following beneficial technical effects:

[0013] The touch screen produced by the vehicle-mounted touch panel is sensitive to touch, has good "raised" touch key position touch experience, and has high performance-price ratio, the printing size of 1mm in height and 15mm in diameter is adopted, the phenomenon of easy cracking after printing and during use is avoided, and the service life of the vehicle-mounted touch panel with the above advantages is longer.

[0014] The additional aspects and advantages of the present application will be given in the subsequent part, and will be understood in detail from the subsequent description or by understanding the specific implementation of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an appearance plane schematic view of the vehicle-mounted touch panel in an embodiment of the utility model;

[0016] Figure 2 It is a cover plate layer side view plane of the vehicle-mounted touch panel in an embodiment of the utility model;

[0017] Figure 3 It is a sensor layer plane schematic view of the vehicle-mounted touch panel in an embodiment of the utility model;

[0018] Figure 4 It is a sectional structure schematic view of the vehicle-mounted touch panel in an embodiment of the utility model.

[0019] EXPLANATION OF REFERENCE NUMERALS:

[0020] 100-cover plate layer, 200-sensor layer;

[0021] 110-transparent film material, 120-light transmission panel, 130-icon; 210-key position, 220-flexible circuit board. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The drawings show possible embodiments of the utility model. However, the utility model can be realized in many different forms, and is not limited to the embodiments already described by the drawings in this paper. The embodiments described by reference to the drawings are exemplary, and are used to make the understanding of the disclosure of the utility model more thorough and comprehensive, and cannot be explained as a limitation of the utility model. In addition, if detailed description of known technology is not necessary for the features of the shown utility model, these technical details can be omitted.

[0023] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the prior art and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0024] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that the term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0025] The technical solution of this utility model and how the technical solution solves the above-mentioned technical problems will be described in detail below with specific embodiments.

[0026] The vehicle-mounted touch panel provided by this utility model, such as Figure 1 and Figure 2 As shown, the touch panel includes a cover layer 100 and a sensor layer 200. The cover layer 100 includes a transparent film 110 printed with black and white ink and a light-transmitting panel 120. The touch panel consists of the cover layer 100 (referred to as Lens in the industry, and will be used thereafter) and the sensor layer 200 (referred to as Sensor in the industry, and will be used thereafter). The Lens consists of two parts: a transparent film printed with black and white ink and a high-transmittance panel.

[0027] like Figure 3 As shown, several keys 210 are printed on the sensor layer 200. Each key 210 protrudes towards the cover layer 100, with a protrusion height of 1mm and a diameter of 15mm. The keys 210 on the sensor are designed as "protruding" touch keys to enhance the operator's touch experience and ensure the accuracy and safety of the operator's operation of the center console during vehicle control. The keys 210 are set with a protrusion height of 1mm and a diameter of 15mm. After repeated research, it was found that with this size, the printed keys 210 are less prone to cracking, resulting in a high yield rate and a high number of repeated operations. The test results can be found in the table below.

[0028] The touch screen produced by the vehicle-mounted touch panel is sensitive to touch, the "protruding" touch key position 210 has good touch experience, and has high performance-price ratio, the printing size of the protruding height of 1mm and the diameter of 15mm can avoid the phenomenon of easy cracking after printing and during use, and ensures that the vehicle-mounted touch panel with the above advantages has a longer service life.

[0029] Specifically, in one embodiment of the present application, as shown in Figure 4 The cover plate layer 100 is provided with icons 130 corresponding to the key positions 210, the protruding height of each icon 130 is 1mm, and the diameter is 15-17mm. In this way, the printing thickness, diameter and protruding height ensure that the key position 210 will not cause silver line cracking and open circuit during hot forming.

[0030] Specifically, in another embodiment of the present application, as shown in Figure 1 and Figure 3 The sensor layer 200 further includes a flexible circuit board, and the flexible circuit board 220 is connected with the key position 210 through a silver paste printed circuit; the printing thickness of the silver paste printed circuit is 6-10μm. The silver paste used for printing the silver line of the key position 210 and the silver paste printed circuit connected with the key has a viscosity of 650Dpa, and the silver paste still has good conductivity after a certain stretch. The "protruding" shape of the key is realized through a hot forming process.

[0031] Optionally, in combination with the foregoing embodiment, in one implementation manner of the present application, as shown in Figure 1 The material of the transparent film material 110 and the light-transmitting panel 120 is polycarbonate. The cover plate layer 100 includes a PC film printed with black ink and white ink and a high-transmittance PC panel. The PC film adopts an optical film with a transmittance of 95%, a haze of less than 0.5 and a thickness of 0.175mm.

[0032] Specifically, in combination with the foregoing embodiment, in another implementation manner of the present application, as shown in Figure 4 The key position 210 is located below the transparent film material 110 printed with white ink. The black ink and white ink are printed on a designated area of one surface of the PC film (corresponding to the non-window of Lens) to decorate the surface of Lens, the white ink adopts a semi-transparent material, the key position 210 of the touch panel below the white icon 130, when the touch panel is installed on the automobile instrument, the light on the instrument can make each touch key position 210 see the icon 130 at night (PET(V) type matte semi-transparent ink is selected). The icon 130 position of the PC film adopts a "protruding" design, the protruding arc and size are the same as those of the SENSOR. The PC panel adopts PC granular material with a transmittance of more than 92% and a haze of less than 0.5 for injection molding.

[0033] Optionally, in another embodiment of the present application, the sensor layer 200 uses a polycarbonate film with a thickness of 0.2mm as the base material. The Sensor uses a PC film base material with a thickness of 0.2mm, which has tensile properties and is conducive to thermoforming. The FPC pins of the Sensor circuit are connected to the external control circuit by crimping pins and mounting connectors.

[0034] The Sensor, the PC film after thermoforming, and the PC granular material are completed by the IMD and IME technologies in the injection molding machine to form the entire touch panel at one time. The touch screen produced according to the technical scheme of the present application has good touch sensitivity and good touch experience of the "raised" touch key position 210, and has high cost performance. The main technical parameters are as follows:

[0035]

[0036] Those skilled in the art can understand that, in the description of the present application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the description of the present application, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above is only part of the embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A touch panel for a vehicle, characterized by comprising: The cover layer and the sensor layer; the cover layer includes transparent film material printed with black ink and white ink and light transmission panel; The sensor layer is printed with a plurality of key positions, each of which is protruded towards the cover layer, and the protrusion height of each key position is 1mm and the diameter is 15mm.

2. The in-vehicle touch panel according to claim 1, characterized by, The cover layer is provided with icons corresponding to the key positions, and the protrusion height of each icon is 1mm and the diameter is 15-17mm.

3. The in-vehicle touch panel according to claim 1, characterized by, The sensor layer further includes a flexible circuit board connected with the key positions through silver paste printed circuit; the printed thickness of the silver paste printed circuit is 6-10μm.

4. The in-vehicle touch panel according to claim 1, characterized by, The material of the transparent film material and the light transmission panel is polycarbonate.

5. The in-vehicle touch panel according to claim 1, characterized by, The key positions are located below the transparent film material printed with the white ink.

6. The in-vehicle touch panel according to claim 1, characterized by, The sensor layer uses polycarbonate film with a thickness of 0.2mm as the base material.

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