A car central control screen display module and a car central control display screen

Abstract

The utility model discloses a kind of car central control screen display module and car central control display screen, car central control screen display module includes glass touch layer, optical adhesive layer, sensing substrate and the car central control display screen module group of adaptation being sequentially laminated;Glass touch layer is embedded in display screen body operation interactive area, its surface is equipped with 3D raised button area accurate corresponding with central control function icon, realize clear pressing touch feedback;Optical adhesive layer adopts high light transmission vehicle special adhesive, completely covers and is attached surface and is resistant to high and low temperature;Sensing substrate is connected with vehicle mainboard by FPC, and capacitance sensing unit and button area one-to-one correspondence, signal response is fast and stable.This application can realize blind operation accurate positioning without visual confirmation, give consideration to full screen display, shock resistance temperature resistance, waterproof dustproof and long life characteristics, effectively improve driving operation safety and convenience, adapt to complex use working condition of car.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive electronic touch control, and in particular to an automotive central control screen display module and an automotive central control display screen. Background Technology

[0002] With the development of automotive intelligence, touch screens have become the core interactive component of automotive central control systems, and are widely used in functional scenarios such as air conditioning adjustment, volume control, and navigation operation.

[0003] However, most touch buttons in existing automotive touch displays are flat structures that rely solely on capacitive sensing for touch functionality, lacking mechanical travel and physical tactile feedback. When operating these buttons while driving, drivers must look down to visually confirm their location, distracting their attention and posing a serious safety hazard. Some touch structures with tactile feedback require additional components such as metal springs and silicone protrusions, increasing the display's thickness and causing issues with poor shock resistance and aging under high and low temperatures, making them unsuitable for the complex conditions of vehicle vibration and extreme temperature changes during driving. Furthermore, existing structures struggle to balance light transmittance and tactile feedback; some raised button designs affect the full-screen display effect and lack accuracy for blind operation. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one of the objectives of this utility model is to provide a car central control screen display module for achieving precise positioning through blind operation without visual confirmation, while also taking into account automotive-specific characteristics such as full-screen display, shock and temperature resistance, and long lifespan.

[0005] A car central control screen display module includes a glass touch layer, an optical adhesive layer, a sensing substrate, and a car central control display module adapted to the sensing substrate, stacked sequentially. The car central control display module includes a display body, a vehicle backlight module, and a central control driving unit. The central control driving unit is used to receive instructions from the vehicle motherboard and drive the display body to display the central control function interface. The display body has an operation interaction area, and the glass touch layer is embedded in the operation interaction area of ​​the display body. The side of the glass touch layer away from the optical adhesive layer has at least one 3D raised button area. The sensing substrate is electrically connected to the vehicle motherboard via an FPC. The side of the sensing substrate facing the optical adhesive layer has capacitive sensing units that correspond one-to-one with the 3D raised button areas. The capacitive sensing units are used to transmit button press signals to the vehicle motherboard to trigger the corresponding central control function.

[0006] Furthermore, the glass touch layer is made of reinforced glass.

[0007] Furthermore, the thickness of the glass touch layer is 300-2000μm.

[0008] Furthermore, the height of the 3D raised button area is 50-450μm.

[0009] Furthermore, the 3D raised button area corresponds to the core functions of the car's central control system, including air conditioning temperature adjustment, fan speed control, volume adjustment, navigation destination confirmation, and central control screen wake-up function.

[0010] Furthermore, the maximum mechanical travel of the 3D raised button area when pressed is less than the sum of its raised height and the thickness of the glass touch layer.

[0011] Furthermore, the outline of each of the 3D raised button areas coincides with the edge outline of the corresponding icon on the central control function interface.

[0012] Furthermore, the 3D raised button area has a rectangular or circular structure.

[0013] Furthermore, the capacitive sensing unit includes a sensing electrode and a signal processing chip. The sensing electrode is made of ITO transparent conductive film and is formed on the surface of the sensing substrate by photolithography. The sensing electrode is electrically connected to the signal processing chip.

[0014] This utility model also proposes an automotive central control display screen 100, including a device housing, an onboard motherboard, and an automotive central control screen display module as described above. The automotive central control screen display module is embedded in the device housing. The onboard motherboard is electrically connected to the automotive central control screen display module via an FPC and is used to receive the operation signals of the sensing substrate and drive the automotive central control display screen module to display the feedback interface of the corresponding function.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art: In this application, the raised structure of the 3D raised button area on the glass touch layer precisely corresponds to the function icons on the car's central control display module. The driver can quickly locate the button position by touch, and combined with clear mechanical travel feedback, the operation can be completed without looking down for visual confirmation, effectively reducing driver attention distraction and improving driving safety. Both the glass touch layer and the optical adhesive layer are made of high light transmittance materials, without any additional structures that obstruct the light path. The button area and non-button area do not affect the display effect of the display screen itself, achieving a perfect combination of clear full-screen display and precise touch operation. The overall structure has no metal springs, silicone protrusions or other easily aging components. The integrated layered design improves structural stability, and it maintains good tactile and signal response performance even after multiple presses, resulting in a long service life. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] In the attached image: Figure 1 This is a schematic diagram of the structure of an embodiment of the automotive central control screen display module of this application; Figure 2 This is a schematic diagram of the structure of an embodiment of the automotive central control screen display module of this application after integration; Figure 3 This is a schematic diagram of the structure of the automotive central control display screen of this application.

[0019] Figure label: 1. Car central control screen display module; 10. Glass touch layer; 11. 3D raised button area; 20. Optical adhesive layer; 30. Sensing substrate; 31. Capacitive sensing unit; 40. Car central control display module; 41. Display body; 42. Vehicle backlight module; 43. Central control drive unit; 100. Car central control display. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figure 1 , Figure 2As shown, this application provides an automotive central control screen display module 1, including a glass touch layer 10, an optical adhesive layer 20, a sensing substrate 30 stacked sequentially, and an automotive central control display module 40 adapted to the sensing substrate 30. The automotive central control display module 40 includes a display body 41, an in-vehicle backlight module 42, and a central control drive unit 43. The central control drive unit 43 is used to receive instructions from the in-vehicle motherboard and drive the display body 41 to display the central control function interface. The display body 41 has an operation interaction area. The glass touch layer 10 is correspondingly embedded in the operation interaction area of ​​the display body 41. The side of the glass touch layer 10 away from the optical adhesive layer 20 has at least one 3D raised button area 11. The sensing substrate 30 is electrically connected to the in-vehicle motherboard through an FPC. The side of the sensing substrate 30 facing the optical adhesive layer 20 has a capacitive sensing unit 31 corresponding to the 3D raised button area 11. The capacitive sensing unit 31 is used to transmit the button press signal to the in-vehicle motherboard to trigger the corresponding central control function.

[0023] The automotive central control display module 40 includes a display body 41, an in-vehicle backlight module 42, and a central control drive unit 43. The central control drive unit 43 receives commands from the in-vehicle motherboard and drives the display body 41 to display the central control function interface. The display body 41 has an operation interaction area adapted to the layout of commonly used functions in automotive central control systems. The glass touch layer 10 has a thickness of 300-2000μm, possessing good scratch and impact resistance, and adapting to the complex environment of daily automotive use.

[0024] The glass touch layer 10 is made of automotive-grade reinforced glass and is embedded in the operation interaction area of ​​the display screen body 41. At least one 3D raised button area 11 is provided on the side away from the optical adhesive layer 20. Each 3D raised button area 11 corresponds to an icon on the central control function interface. The 3D raised button area 11 has a raised height of 50-450μm and a mechanical stroke of 350-2050μm when pressed. The maximum stroke is less than the sum of its raised height and the thickness of the glass touch layer 10. A three-dimensional structure is formed through chemical etching and strengthening processes, enabling a realistic tactile feedback during pressing and maintaining normal triggering function even after multiple presses, providing clear tactile feedback. The button area has a rectangular or circular structure, with the four corners of the rectangular button area rounded to prevent hand scratches during operation. The outline of each button area coincides with the edge outline of the corresponding icon on the central control function interface, with a deviation of no more than 0.5mm, improving the accuracy of blind operation.

[0025] The optical adhesive layer 20 uses a high-transmittance automotive-grade optical adhesive, which completely covers the bonding surface between the glass touch layer 10 and the sensing substrate 30, with a light transmittance of ≥98%, ensuring that the display effect of the screen is not affected and achieving full-screen display.

[0026] The sensing substrate 30 is electrically connected to the vehicle mainboard via an anti-interference vehicle FPC. On the side facing the optical adhesive layer 20, there is a capacitive sensing unit 31 corresponding to the 3D raised button area 11, which is used to transmit the button press signal to the vehicle mainboard to trigger the corresponding central control function. The capacitive sensing unit 31 includes a sensing electrode and a signal processing chip. The sensing electrode is made of ITO transparent conductive film, which is formed on the surface of the sensing substrate 30 by photolithography. It has the ability to resist vehicle electromagnetic interference and ensure stable and accurate signal transmission.

[0027] Furthermore, the glass touch layer 10 is made of reinforced glass.

[0028] This reinforced glass material undergoes a special process, resulting in high strength, high wear resistance, and excellent impact resistance. It effectively withstands various external impacts and scratches encountered during vehicle operation, ensuring the lifespan and stability of the glass touch layer 10. Simultaneously, this material exhibits good chemical stability, adapting to the complex environmental conditions inside a car and resisting changes in performance or damage due to temperature, humidity, or contact with various chemicals. In terms of optical performance, the reinforced glass material also performs exceptionally well, possessing high light transmittance to ensure smooth light transmission without adversely affecting the display screen's display effect. This allows the entire automotive central control screen display module 1 to achieve a high level of clarity and color reproduction.

[0029] Furthermore, the thickness of the glass touch layer 10 is 300-2000μm.

[0030] The thickness range is set based on multiple considerations. When the glass touch layer 10 is between 300-2000μm thick, firstly, in terms of mechanical performance, it can provide stable and reliable support for the 3D raised button area 11. During vehicle operation, various vibrations and impacts are inevitable. If the glass touch layer 10 is too thin, it may not be able to withstand these external forces, leading to damage to the button area structure and affecting normal use; while being too thick will increase the weight and volume of the entire display module, which is not conducive to the overall layout and lightweight design of the vehicle's central control system. In terms of optical performance, this thickness range ensures good light transmittance and will not interfere with the display effect of the screen due to improper thickness, making the displayed content clearly visible. At the same time, in terms of touch sensitivity, the appropriate thickness can also ensure that the capacitive sensing unit 31 accurately senses the finger's pressing signal, realizing precise touch operation and bringing users a smooth user experience.

[0031] Furthermore, the height of the 3D raised button area 11 is 50-450μm.

[0032] This height range is carefully designed. When the height of the 3D raised button area 11 is between 50-450μm, it provides the driver with a clear and comfortable pressing feel in terms of tactile feedback. Too low a raised height may make it difficult for the driver to accurately perceive the button position by touch, hindering precise positioning for blind operation; while too high a raised height may put excessive pressure on the fingers when pressing, leading to finger fatigue during prolonged operation and affecting the driving experience. In terms of structural stability, this height range ensures that the button area maintains its structural integrity under vibration and impact during vehicle operation, preventing damage, while also ensuring good fit with the glass touch layer 10, preventing any impact on the overall display and touch effect due to unsuitable height. Furthermore, in terms of correspondence with the icons on the central control interface, this height range allows for precise matching between the button area and the icons, with deviations controlled within a minimal range, further improving the accuracy of blind operation.

[0033] Furthermore, the 3D raised button area 11 corresponds to the core functions of the car's central control system, including air conditioning temperature adjustment, air volume control, volume adjustment, navigation destination confirmation, and central control screen wake-up function.

[0034] Five 3D raised button areas 11 are provided on the side of the glass touch layer 10 away from the optical adhesive layer 20, which correspond to the functions of air conditioning temperature adjustment, air volume control, volume adjustment, navigation destination confirmation and central control screen wake-up. The outline of each 3D raised button area 11 is completely aligned with the edge outline of the corresponding icon on the central control function interface.

[0035] Furthermore, the maximum mechanical stroke of the 3D raised button area 11 when pressed is less than the sum of its raised height and the thickness of the glass touch layer 10.

[0036] This design requirement ensures that when the 3D raised button area 11 is pressed, the button area has sufficient space to deform and produce clear tactile feedback, while avoiding damage to the glass touch layer 10 due to excessive pressure. When the maximum mechanical stroke is less than the sum of the raised height and the thickness of the glass touch layer 10, the button area can fully compress and rebound during the pressing process, forming a clear mechanical tactile feedback, allowing the driver to accurately perceive whether the button has been pressed. Furthermore, this design effectively prevents the glass touch layer 10 from cracking or deforming due to excessive pressing force, ensuring the stability and reliability of the entire display module. In actual use, the driver can accurately operate various function buttons based on this clear tactile feedback without visual confirmation, greatly improving the convenience and safety of operation during driving. Even in complex road conditions, the driver can quickly adjust functions such as air conditioning temperature, fan speed, and volume, as well as confirm navigation destinations and wake up the central control screen, effectively reducing distractions from operating the central control screen and lowering driving risks.

[0037] Furthermore, the outline of each of the 3D raised button areas 11 coincides with the edge outline of the corresponding icon on the central control function interface.

[0038] This design significantly improves the accuracy of blind operation for drivers. During actual driving, drivers don't need to take their eyes off the road; they can quickly and accurately determine the function of each button simply by touching the outline of the button area. For example, when adjusting the air conditioning temperature, drivers can quickly locate the temperature control button by feeling the specific outline of the button area, easily adjusting the temperature. This precise outline-based design not only improves operational efficiency but also enhances driving safety, reducing potential dangers caused by looking down at the center console screen. Furthermore, this overlapping design provides a neat and aesthetically pleasing look, enhancing the overall visual effect and quality of the car's center console screen, making it appear more professional and refined, meeting the high standards of modern automotive interior design.

[0039] Furthermore, the 3D raised button area 11 has a rectangular or circular structure.

[0040] The rectangular 3D raised button area 11 is meticulously designed in terms of length and width ratio. While ensuring sufficient operating area, it doesn't occupy excessive space, allowing it to blend seamlessly with the overall layout of the central control interface. Its four corners feature a rounded design, a crucial detail. During frequent driver operation, the hands constantly come into contact with the button area; the rounded corners effectively prevent hand injuries from sharp edges, improving safety and comfort. The circular 3D raised button area 11, on the other hand, offers unique advantages. Its smooth, rounded appearance provides a soft visual experience, complementing the rectangular button area and enriching the overall layout of the central control screen. In terms of user experience, the circular button area is directional; the driver can easily find the center of the button from any angle, making operation more convenient and fluid. This is especially suitable for functions requiring rapid operation, such as the central control screen wake-up function, allowing the driver to quickly wake the screen and obtain necessary information in emergencies. These two different shapes of the 3D raised button area 11 are rationally arranged according to the frequency of use and operational characteristics of different functions, jointly providing the driver with an efficient, safe, and comfortable operating experience.

[0041] In one embodiment, the buttons in the 3D raised button area 11 corresponding to the air conditioning temperature and volume adjustment buttons are rectangular, while the buttons corresponding to the air volume control, navigation destination confirmation, and central control screen wake-up functions are circular. The raised height of each button is 100μm, and the mechanical stroke when pressed is 400μm. The maximum stroke is less than the sum of the raised height and the thickness of the glass touch layer 10, ensuring smooth pressing and rebound.

[0042] Furthermore, the capacitive sensing unit 31 includes a sensing electrode and a signal processing chip. The sensing electrode is made of ITO transparent conductive film and is formed on the surface of the sensing substrate 30 by photolithography. The sensing electrode is electrically connected to the signal processing chip.

[0043] ITO transparent conductive film, as a high-quality conductive material, possesses many characteristics suitable for application in sensing electrodes. Its high light transmittance ensures good conductivity while minimally affecting light transmission, which is crucial for smooth light transmission between layers in 3D touch buttons. Poor light transmittance of the sensing electrode can interfere with light signals, thereby affecting the accurate sensing of the 3D raised button area 1111 by the capacitive sensing unit 31, reducing the sensitivity and accuracy of the touch button.

[0044] By forming an ITO transparent conductive film on the surface of the sensing substrate 30 using photolithography, high-precision patterning can be achieved. This process allows for precise control of the shape, size, and position of the sensing electrodes, ensuring a perfect correspondence with the 3D raised button area 11. For example, sensing electrodes of specific shapes can be designed to match rectangular, square, circular, or elliptical 3D raised button areas 11, based on different button shapes and functional requirements. This ensures that the sensing electrodes can accurately detect changes in capacitance when the user presses the button.

[0045] like Figure 3 As shown, this utility model also proposes an automotive central control display screen 100, which includes a device housing, an onboard motherboard, and the automotive central control screen display module 1 as described above. The automotive central control screen display module 1 is embedded in the device housing. The onboard motherboard is electrically connected to the automotive central control screen display module 1 via an FPC, and is used to receive operation signals from the sensing substrate 30 and drive the automotive central control display module 40 to display a feedback interface for the corresponding function. The specific structure of the automotive central control screen display module 1 is as described in the above embodiments. Since this automotive central control display screen 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0046] The device housing is a dedicated housing for automotive central control systems, featuring an automotive-grade heat dissipation structure that can quickly dissipate the heat generated when the display screen is working. The vehicle motherboard is electrically connected to the automotive central control screen display module 1 via an FPC, used to receive operation signals from the sensing substrate 30 and drive the automotive central control display module 40 to display the feedback interface of the corresponding function, such as displaying the temperature value change after the air conditioning temperature is adjusted, or displaying the route planning interface after navigation is confirmed.

[0047] In this embodiment, the car central control screen display module 1 and the car central control display screen 100 allow the driver to quickly locate the 3D raised button area through finger touch during actual use. When pressing, the driver can feel clear mechanical travel feedback and complete the operation without looking down, effectively improving driving safety. The overall structure is adapted to the complex working conditions of automobiles, with excellent shock resistance, high and low temperature resistance, waterproof and dustproof performance, and long service life. At the same time, it also takes into account the full-screen high-definition display effect, providing the driver with an efficient, safe and convenient interactive experience.

[0048] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A car central control screen display module, characterized in that, The system includes a glass touch layer, an optical adhesive layer, a sensing substrate, and an automotive central control display module adapted to the sensing substrate, all stacked sequentially. The automotive central control display module comprises a display body, an in-vehicle backlight module, and a central control drive unit. The central control drive unit receives commands from the in-vehicle motherboard and drives the display body to display the central control function interface. The display body has an interactive area, and the glass touch layer is embedded in the interactive area of ​​the display body. At least one 3D raised button area is provided on the side of the glass touch layer away from the optical adhesive layer. The sensing substrate is electrically connected to the in-vehicle motherboard via an FPC. On the side of the sensing substrate facing the optical adhesive layer, there are capacitive sensing units corresponding to the 3D raised button areas. The capacitive sensing units transmit button press signals to the in-vehicle motherboard to trigger corresponding central control functions.

2. The automotive central control screen display module according to claim 1, characterized in that, The glass touch layer is made of reinforced glass.

3. The automotive central control screen display module according to claim 1, characterized in that, The thickness of the glass touch layer is 300-2000μm.

4. The automotive central control screen display module according to claim 1, characterized in that, The height of the 3D raised button area is 50-450μm.

5. The automotive central control screen display module according to claim 1, characterized in that, The 3D raised button area corresponds to the core functions of the car's central control system, including air conditioning temperature adjustment, fan speed control, volume adjustment, navigation destination confirmation, and central control screen wake-up function.

6. The automotive central control screen display module according to claim 1, characterized in that, The maximum mechanical travel of the 3D raised button area when pressed is less than the sum of its raised height and the thickness of the glass touch layer.

7. The automotive central control screen display module according to claim 1, characterized in that, The outline of each of the 3D raised button areas coincides with the edge outline of the corresponding icon on the central control function interface.

8. The automotive central control screen display module according to claim 1, characterized in that, The 3D raised button area has a rectangular or circular structure.

9. A car central control screen display module according to claim 1, characterized in that, The capacitive sensing unit includes a sensing electrode and a signal processing chip. The sensing electrode is made of ITO transparent conductive film and is formed on the surface of the sensing substrate by photolithography. The sensing electrode is electrically connected to the signal processing chip.

10. A car central control display screen, characterized in that, The device includes a housing, an onboard motherboard, and an automotive central control screen display module as described in any one of claims 1 to 9. The automotive central control screen display module is embedded in the housing. The onboard motherboard is electrically connected to the automotive central control screen display module via an FPC and is used to receive operation signals from the sensing substrate and drive the automotive central control screen module to display a feedback interface for the corresponding function.

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