Touch panel

Abstract

The utility model provides a touch panel which comprises a rear shell, a display screen, a PCB and a front cover, the display screen, the PCB and the front cover are installed on the rear shell, the front cover is connected to the rear shell in a covering mode, the PCB is arranged between the rear shell and the front cover in a clamped mode, and an annular touch copper foil area is arranged on the PCB. An annular touch area is arranged on the front cover and is opposite to the touch copper foil area; a plurality of copper foils are arranged in the touch copper foil area in an annular array mode, the display screen is installed in the front cover, and the touch area surrounds the display screen. An annular touch area is arranged at the position, surrounding a display screen, of a front cover, an annular touch copper foil area is arranged on a corresponding PCB below the annular touch area, and the annular touch copper foil area is composed of a plurality of copper foils. Therefore, a user can simulate actions of adding and subtracting a plurality of gears by sliding and scratching a plurality of copper foil areas on the annular touch area, corresponding numerical values are correspondingly displayed on the display screen, the convenience of operation is ensured, and no obvious knob protrusion exists, so that the integrity of the front cover is not damaged by the sense of science and technology.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, in particular to a touch panel. Background Art

[0002] With the rapid development of technology, smart home devices have become an important part of modern homes, bringing great convenience to people's lives. Among smart home devices, the central control display screen of smart home, as the direct interface for users to interact with the devices, the quality of its design directly affects the user experience. However, most of the traditional smart home display screens have mechanical buttons installed on the outer middle frame of the display screen for controlling functions such as the volume or brightness of speakers, TVs, air conditioners, fans, etc. This design not only has a heavy operation feel, with low efficiency as only one gear can be adjusted at a time, but also lacks a sense of technology. Moreover, after long-term use, the buttons may experience problems such as wear and aging, affecting the overall aesthetics and service life of the device; to solve this problem, some control panels with knobs have emerged in the market, but due to the presence of the knobs, the structure of the control panel becomes more complex to accommodate the rotating structure and lacks a sense of technology. Content of the Utility Model

[0003] To solve the above problems, the purpose of the utility model is to provide a touch panel.

[0004] The utility model is implemented as follows: A touch panel includes a rear case, and a display screen, a PCB board and a front cover installed on the rear case. The front cover is connected to the rear case, the PCB board is clamped between the rear case and the front cover, and a circular touch copper foil area is provided on the PCB board; a circular touch area is provided on the front cover, opposite to the touch copper foil area; the touch copper foil area is provided with multiple copper foils in a circular array, the display screen is installed in the front cover, and the touch area surrounds the display screen.

[0005] Preferably, the head end of each copper foil is in a protruding W shape, the tail end of each copper foil is in a concave W shape, and the head and tail of adjacent two copper foils are opposite to each other.

[0006] Preferably, the head end of each copper foil is in a protruding V shape, the tail end of each copper foil is in a concave V shape, and the head and tail of adjacent two copper foils are opposite to each other.

[0007] Preferably, the docking part of each copper foil and the adjacent copper foil is in a straight shape.

[0008] Preferably, the head end of each copper foil is in a wavy shape, the tail end of each copper foil is in a wavy shape, and the head and tail of adjacent two copper foils are opposite to each other.

[0009] Preferably, an annular silica gel sheet is provided on the touch copper foil area, and the silica gel sheet is clamped between the touch copper foil area and the touch area.

[0010] Preferably, the upper surface of the front cover is concave at the touch area.

[0011] Preferably, an installation groove is provided inside the front cover within the annular touch area, and the display screen is installed in the installation groove.

[0012] The beneficial effects of the present invention are as follows: The present invention provides a touch panel. Compared with the prior art, the present invention has at least the following technical effects: 1. By providing an annular touch area at the position around the display screen on the front cover, and providing an annular touch copper foil area on the corresponding PCB board below it, and the annular touch copper foil area is composed of multiple copper foils. In this way, when the user slides across the areas where multiple copper foils are located on the annular touch area, it can simulate the actions of adding and subtracting multiple gears, and the corresponding values are displayed on the display screen, ensuring the convenience of operation, and there is no obvious protruding knob to ensure that the sense of technology does not damage the integrity of the front cover. 2. In order to ensure that different touch positions can be sensed during sliding, the touch copper foil area is composed of multiple independent copper foils. The heads and tails of the copper foils adopt non-planar shapes such as V, W, and waves. The advantage is that when the finger touches the position where two copper foils meet on the touch area, in the same radial direction, part of the finger is still on the previous copper foil and part of the finger is on the adjacent other copper foil. Compared with the straight shape, it can be immediately connected, which is convenient for the algorithm to more quickly and accurately judge the sliding direction of the finger, can avoid the problem of discontinuity in the straight shape, and can more accurately judge the finger position and sliding area. 3. Setting the touch area as a concave curved surface shape can play the role of protruding the touch area and serving as a reminder for user touch control. Description of the Drawings

[0013] Figure 1 is a schematic cross-sectional structure diagram of a touch panel of the present invention.

[0014] Figure 2 is a schematic structural diagram of the touch panel of the present invention after removing the display screen.

[0015] Figure 3 is a schematic state diagram of the copper foil in the touch copper foil area of the present invention in a W shape.

[0016] Figure 4 is a schematic state diagram of the copper foil in the touch copper foil area of the present invention in a straight shape

[0017] Explanation of the reference numerals in the drawings: 1. Display screen; 2. Front cover; 21. Touch area; 22. Installation groove; 3. Rear shell; 4. PCB board; 5. Silica gel sheet; 6. Touch copper foil area; 61. Copper foil; 7. Finger. Detailed implementation mode

[0018] The following further describes the present utility model in conjunction with the attached drawings and specific embodiments.

[0019] Please refer to Figures 1 to 4 , a touch panel, including a rear case 3, a display screen 1, a PCB board and a front cover 2 installed on the rear case 3. The front cover 2 is connected to the rear case 3, the PCB board 4 is clamped between the rear case 3 and the front cover 2, and a circular touch copper foil area 6 is provided on the PCB board 4; a circular touch area 21 is provided on the front cover 2, opposite to the touch copper foil area 6; the touch copper foil area 6 is provided with a plurality of copper foils 61 in a circular array, the display screen 1 is installed in the front cover 2, and the touch area 21 surrounds the display screen 1. By providing a circular touch area 21 at a position surrounding the display screen 1 on the front cover 2, and a circular touch copper foil area 6 is provided on the corresponding PCB board 4 below it, and the circular touch copper foil area 6 is composed of a plurality of copper foils 61, so that when the user slides across the areas where multiple copper foils 61 are located on the circular touch area 21, it can simulate the actions of adding and subtracting multiple gears, and the corresponding addition and subtraction values are displayed on the display screen 1, ensuring the convenience of operation, and there is no obvious knob protruding to ensure that the sense of technology does not damage the integrity of the front cover 2. When the finger 7 slides along the circular touch area 21 of the front cover 2, the finger 7 forms a capacitance with the copper foil 61 on the PCB board 4, and is conducted to the IC of the PCB board 4 through a software algorithm to sense the position of the finger 7 touch to operate the + / - gear on the display screen 1, similar to the rotation of a knob. It should be noted that the software algorithms are all mature existing technologies, and will not be elaborated in detail and no specific protection requirements are made.

[0020] Please refer to Figure 1 , Figure 3 , preferably, the head end of each copper foil 61 is in a protruding W shape, the tail end of each copper foil 61 is in a concave W shape, and the heads and tails of adjacent two copper foils 61 are opposite to each other. In order to ensure that different touch positions can be sensed during sliding, the touch copper foil area 6 is composed of a plurality of independent copper foils 61. The advantage of using a non-flat W shape at the head and tail of the copper foil 61 is that when the finger 7 touches the position where two copper foils 61 meet on the touch area 21, in the same radial direction, a part of the finger 7 is still on the previous copper foil 61 and another part of the finger 7 is on the adjacent other copper foil 61. Compared with the straight shape, it can be immediately connected, which is convenient for the algorithm to more quickly and accurately judge the sliding direction of the finger 7, can avoid the problem of discontinuity in the straight shape, and can more accurately judge the position and sliding area of the finger 7.

[0021] Preferably, the head end of each copper foil 61 is in a protruding V shape (not shown), the tail end of each copper foil 61 is in a concave V shape, and the heads and tails of two adjacent copper foils 61 face each other. In order to ensure that different touch positions can be sensed during sliding, the touch copper foil area 6 is composed of multiple independent copper foils 61. The advantage of using a non-planar V shape at the head and tail of the copper foil 61 is that when the finger 7 touches the position where two copper foils 61 meet on the touch area 21, in the same radial direction, part of the finger 7 is still on the previous copper foil 61 and part of the finger 7 is on the adjacent other copper foil 61. Compared with the straight shape, it can be immediately connected, which is convenient for the algorithm to more quickly and accurately judge the sliding direction of the finger 7, can avoid the problem of discontinuity in the straight shape, and can more accurately judge the position and sliding area of the finger 7.

[0022] Please refer to Figure 1 、 Figure 4 , preferably, the butt joint of each copper foil 61 and the adjacent copper foil 61 is in a straight shape. Each copper foil 61 is independent, and the position where the finger 7 is located can be determined. Then, through the upper algorithm, the sliding direction can be determined according to the triggering order of the copper foils 61, and thus the up and down gears can be realized.

[0023] Preferably, the head end of each copper foil 61 is in a wavy shape (not shown), the tail end of each copper foil 61 is in a wavy shape, and the heads and tails of two adjacent copper foils 61 face each other. In order to ensure that different touch positions can be sensed during sliding, the touch copper foil area 6 is composed of multiple independent copper foils 61. The advantage of using a non-planar wavy shape at the head and tail of the copper foil 61 is that when the finger 7 touches the position where two copper foils 61 meet on the touch area 21, in the same radial direction, part of the finger 7 is still on the previous copper foil 61 and part of the finger 7 is on the adjacent other copper foil 61. Compared with the straight shape, it can be immediately connected, which is convenient for the algorithm to more quickly and accurately judge the sliding direction of the finger 7, can avoid the problem of discontinuity in the straight shape, and can more accurately judge the position and sliding area of the finger 7.

[0024] Please refer to Figure 1 , preferably, an annular silica gel sheet 5 is provided on the touch copper foil area 6, and the silica gel sheet 5 is clamped between the touch copper foil area 6 and the touch area 21. The front cover 2, the silica gel sheet 5, and the touch copper foil area 6 on the PCB are closely attached together. When the finger 7 touches the touch area 21 of the front cover 2, a capacitance is formed with the touch copper foil 61.

[0025] Please refer to Figure 1 、 Figure 2 , preferably, the upper surface of the front cover 2 is concave at the touch area 21. Setting the touch area 21 to a concave curved surface shape can have the effect of protruding the touch area 21 and play a role in prompting the user's touch control.

[0026] Please refer toFigure 1 , Figure 2 , preferably, an installation groove 22 is provided inside the front cover 2 within the annular touch area 21, and the display screen 1 is installed in the installation groove 22. The display screen 1 can be accommodated in the front cover 2, which has better integrity.

[0027] The working principle of the present utility model is as follows:

[0028] The front cover 2, the silicone sheet 5, and the touch copper foil area 6 are closely attached together. When the finger 7 touches the touch area 21 of the front cover 2, a capacitance is formed with the copper foil 61, and it is conducted to the IC of the PCB through a software algorithm to sense the position where the finger 7 touches to operate the + / - gear in the display screen 1, similar to the rotation of a knob.

[0029] If the annular touch area 21 is more sensitive, the copper foil 61 needs to be divided into smaller pieces and arranged more densely. The advantages of using non - flat shapes such as V, W, and waves at the head and tail of the copper foil 61 are that when the finger 7 touches the position where two pieces of copper foil 61 meet in the touch area 21, in the same radial direction, part of the finger 7 is still on the previous piece of copper foil 61 and the other part of the finger 7 is on the adjacent piece of copper foil 61. Compared with the straight - line shape, it can be immediately connected, which is convenient for the algorithm to more quickly and accurately judge the sliding direction of the finger 7, can avoid the problem of discontinuity in the straight - line shape, and can more accurately judge the position and sliding area of the finger 7.

[0030] The following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0031] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0032] Finally, the above - mentioned is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above - mentioned embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model.

[0033] It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A touch panel, comprising a rear case, and a display screen, a PCB board and a front cover mounted on the rear case, characterized in that: The front cover is connected to the rear case, the PCB board is clamped between the rear case and the front cover, and an annular touch copper foil area is provided on the PCB board; an annular touch area is provided on the front cover, opposite to the touch copper foil area; a plurality of copper foils are arranged in an annular array in the touch copper foil area, the display screen is installed in the front cover, and the touch area surrounds the display screen.

2. A touch panel according to claim 1, wherein: The head end of each copper foil is in a protruding W shape, the tail end of each copper foil is in a concave W shape, and the heads and tails of two adjacent copper foils are opposite to each other.

3. A touch panel according to claim 1, wherein: The head end of each copper foil is in a protruding V shape, the tail end of each copper foil is in a concave V shape, and the heads and tails of two adjacent copper foils are opposite to each other.

4. A touch panel according to claim 1, wherein: The butt joint of each copper foil and the adjacent copper foil is in a straight shape.

5. A touch panel according to claim 1, characterized in that: The head end of each copper foil is in a wavy shape, the tail end of each copper foil is in a wavy shape, and the heads and tails of two adjacent copper foils are opposite to each other.

6. A touch panel according to claim 1, wherein: A ring-shaped silica gel sheet is provided on the touch copper foil area, and the silica gel sheet is clamped between the touch copper foil area and the touch area.

7. A touch panel according to claim 6, characterized in that: The upper surface of the front cover is concave at the touch area.

8. A touch panel according to claim 1, characterized in that: An installation groove is provided in the front cover within the annular touch area, and the display screen is installed in the installation groove.

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