Touch screen device
By setting deformable conductive elements below the screen, screen activation is identified by using the change in contact area caused by pressing, the problem of high cost of pressure sensors is solved, and low-cost and high-precision screen activation is achieved.
Patent Information
- Application Number
- CN202421730584.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In existing electronic products, the cost of using pressure sensors for screen activation is high and the assembly accuracy requirements are high, resulting in increased production costs.
The deformable conductive element is used to set corresponding to the activation area of the screen. The resistance and capacity value change is caused by changing the contact area when pressed. The main control board recognizes the change to activate the screen, replacing the traditional pressure sensor.
It reduces production costs and reduces the requirements for installation accuracy, while achieving the same screen activation effect.
Smart Images
Figure CN223229956U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic products, and in particular to a touch screen device. Background Art
[0002] Some screens of existing electronic products require pressure activation, that is, pressing the screen to wake up or activate. Such products usually use pressure sensors to detect the pressure on the screen and electrically connect the pressure sensor to the main control board. The main control board controls the host of the electronic product through the pressure changes detected by the pressure sensor. However, the cost of pressure sensors is relatively high and the assembly precision requirements are also high, which undoubtedly increases the production cost of electronic products. Utility Model Content
[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a touch screen device.
[0004] This application provides a touch screen device, including:
[0005] a housing having a mounting chamber with one side open;
[0006] A screen is buckled into the opening of the installation cavity, and the screen has an activation area;
[0007] a main control board, disposed in the installation chamber and having a gap between it and the screen;
[0008] The deformable conductive element is arranged between the screen and the main control board and is set corresponding to the activation area. The top surface of the deformable conductive element is in contact with the activation area of the screen, and the bottom surface of the deformable conductive element is electrically connected to the main control board. When the deformable conductive element is subjected to pressure, the contact area between the top surface of the deformable conductive element and the screen increases.
[0009] In some embodiments, the top surface of the deformable conductive element is an arc surface, a conical surface or a sawtooth surface.
[0010] In some embodiments, the deformable conductive element is an elastic member.
[0011] In some embodiments, a cavity is defined within the deformable conductive element.
[0012] In some embodiments, the cavity extends in a direction parallel to the screen.
[0013] In some embodiments, the deformable conductive element is in the shape of an elongated strip, and the deformable conductive element is disposed along the width direction of the screen.
[0014] In some embodiments, the cavity has a circular cross-section.
[0015] In some embodiments, the activation area is provided on the outer side of the screen, and an activation wiring area is provided on the inner side of the screen. The activation wiring area is arranged opposite to the activation area, and the activation wiring area contacts the top surface of the deformable conductive element.
[0016] In some embodiments, a connecting bracket is further included, one end of which is connected to the deformable conductive element, and the other end of which is connected to the main control board.
[0017] In some embodiments, the connecting bracket includes a first contact segment, a connecting segment and a second contact segment, the first contact segment is in contact with the bottom surface of the deformable conductive element, the second contact segment is in contact with the main control board, and the connecting segment is connected between the first contact segment and the second contact segment.
[0018] The technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:
[0019] The touch screen device provided in an embodiment of the present application features a deformable conductive element positioned below the screen's activation area. When the activation area is pressed, the deformable conductive element deforms under pressure, increasing the contact area between the top surface of the deformable conductive element and the screen, which in turn causes changes in resistance and capacitance. The main control board detects this change in resistance and capacitance, and activates the screen. Compared to solutions using pressure sensors for screen activation, this solution is less expensive and requires less precision in the installation of the deformable conductive element. This reduces the production cost of the touch screen device while still achieving the same screen activation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0022] Figure 1 This is a schematic structural diagram of the touch screen device described in an embodiment of the present application;
[0023] Figure 2 This is a schematic diagram of the internal structure of the touch screen device according to an embodiment of the present application;
[0024] Figure 3 This is an exploded view of the touch screen device according to an embodiment of the present application;
[0025] Figure 4 This is a state diagram of the touch screen device according to an embodiment of the present application when the screen is not pressed;
[0026] Figure 5 This is a state diagram of the touch screen device described in an embodiment of the present application when the screen is pressed.
[0027] Among them, 1. screen; 101. activation area; 102. activation wiring area; 2. shell; 3. main control board; 4. deformable conductive element; 401. top surface; 402. bottom surface; 403. cavity; 5. connecting bracket; 501. first contact section; 502. connecting section; 503. second contact section. DETAILED DESCRIPTION
[0028] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.
[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.
[0030] Some screens of existing electronic products require pressure activation, that is, pressing the screen to wake up or activate. Such products usually use pressure sensors to detect the pressure on the screen and electrically connect the pressure sensor to the main control board. The main control board controls the host of the electronic product through the pressure changes detected by the pressure sensor. However, the cost of pressure sensors is relatively high and the assembly precision requirements are also high, which undoubtedly increases the production cost of electronic products.
[0031] The problem of high production costs caused by the use of pressure sensors and other sensing components in electronic products to sense pressure signals and then activate the electronic products has not been solved. An embodiment of the present application provides a touch screen device, which uses a deformable conductive element to correspond to the activation area of the screen. By changing the contact area between the screen and the deformable conductive element when pressed, the screen is activated through the main control board due to the change in its resistance and capacitance. Compared with the solution of using pressure sensors to achieve screen activation, the cost is lower and the installation accuracy requirements for the deformable conductive element are also relatively low. Therefore, on the basis of being able to achieve the same screen activation effect, the production cost of the touch screen device is reduced.
[0032] Specifically, such as Figures 1 to 5 As shown, in some embodiments of the present application, the touch screen device includes:
[0033] The housing 2 has a mounting chamber with one side open. The housing 2 is the outer shell of the touch screen device and protects the internal components.
[0034] The screen 1 is fastened to the opening of the mounting chamber and has an activation area 101. The activation area 101 can be set as a button or a part of the structure of the screen 1 itself;
[0035] The main control board 3 is arranged in the installation chamber and has a gap between it and the screen 1. The main control board 3 is used to control the touch screen device to realize various functions of the touch screen device;
[0036] The deformable conductive element 4 is arranged between the screen 1 and the main control board 3, and is arranged corresponding to the activation area 101 of the screen 1. The top surface 401 of the deformable conductive element 4 is in corresponding contact with the activation area 101 of the screen 1, and the bottom surface 402 of the deformable conductive element 4 is electrically connected to the main control board 3; when the activation area 101 of the screen 1 is pressed, the deformable conductive element 4 is deformed under the action of pressure, and the contact area between its top surface 401 and the screen 1 increases. Therefore, the resistance and capacitance values of the contact surface between the deformable conductive element 4 and the screen 1 change. The main control board 3 activates the screen 1 by identifying the changed resistance and capacitance values. Compared with the solution of using a pressure sensor to activate the screen 1, the cost is lower and the installation accuracy requirements of the deformable conductive element 4 are also relatively low. Therefore, on the basis of being able to achieve the same screen 1 activation effect, the production cost of the touch screen device is reduced.
[0037] Furthermore, in some embodiments of the present application, the top surface 401 of the deformable conductive element 4 is an arc-shaped, conical, or serrated surface. When not pressed, the top surface 401 of the deformable conductive element 4 is in linear contact with the screen 1. When pressed, the deformable conductive element 4 deforms slightly, and the top surface 401 and the screen 1 are in surface contact, increasing the contact area. The change in contact area caused by pressure, in turn, changes the resistance and capacitance values, and the main control board 3 activates the screen 1 based on the change in resistance and capacitance values.
[0038] Reference Figure 4 and Figure 5 As shown, in some embodiments of the present application, the top surface of the deformable conductive element 4 is an arc-shaped surface. In the unpressurized state, the contact surface between the top surface 401 of the deformable conductive element 4 and the screen 1 is relatively narrow, and the resistance and capacitance values are constant. When the screen 1 needs to be activated, a certain amount of pressure is applied to the activation area 101 of the screen 1. Under the action of this pressure, the activation area 101 of the screen 1 slightly deforms. The downward deformation force causes the screen 1 to compress the deformable conductive element 4, causing it to deform. At this time, the contact surface between the top surface 401 of the deformable conductive element 4 and the screen 1 becomes wider, causing the resistance and capacitance values to change.
[0039] Furthermore, in some embodiments of the present application, the deformable conductive element 4 is an elastic member. When subjected to pressure, the deformable conductive element 4 is compressed and deformed, and when the pressure is removed, it automatically returns to its original state. This ensures that the deformable conductive element 4 can be reused, and each press causes a change in resistance and capacitance, allowing the main control board 3 to promptly activate the screen 1.
[0040] Furthermore, in some embodiments of the present application, a cavity 403 is provided in the deformable conductive element 4 to provide space for the deformable conductive element 4 to deform when pressed by hand.
[0041] Furthermore, in some embodiments of the present application, the deformable conductive element 4 is in the shape of an elongated strip and is disposed along the width of the screen 1. Specifically, in some embodiments of the present application, taking a mobile phone as an example, the deformable conductive element 4 is disposed at the top or bottom of the phone, and the length of the deformable conductive element 4 is no less than the width of the activation area 101. Pressing any position of the activation area 101 causes the deformable conductive element 4 to compress and deform, thereby improving the accuracy of screen 1 activation.
[0042] Furthermore, in some embodiments of the present application, the cross-section of the cavity 403 within the deformable conductive element 4 is circular. The cavity 403 extends through the deformable conductive material along the length of the deformable conductive element 4. The circular cross-section of the cavity 403 allows the deformable conductive element 4 to have a certain amount of room to deform when subjected to pressure from above. Of course, the cross-section of the cavity 403 may also have other shapes, such as elliptical, rectangular, and triangular.
[0043] Furthermore, in some embodiments of the present application, the activation area 101 is provided on the outer side of the screen 1, and the activation wiring area 102 is provided on the inner side of the screen 1. The activation wiring area 102 is disposed opposite the activation area 101 and contacts the top surface 401 of the deformable conductive element 4. Specifically, the side of the screen 1 facing away from the installation cavity is the outer side of the screen 1, and the side opposite the outer side is the inner side of the screen 1. Placing the activation area 101 on the outer side facilitates user operation, while placing the activation wiring area 102 on the inner side, where it contacts the deformable conductive element 4, allows the user to sense changes in the resistance and capacitance values of the deformable conductive element 4.
[0044] Furthermore, in some embodiments of the present application, the touch screen device also includes a connecting bracket 5, one end of which is connected to the deformable conductive element 4 and the other end is connected to the main control board 3. The main control board 3 is fixed in the installation chamber, and the connecting bracket 5 is fixed on the main control board 3. Therefore, the distance between the connecting bracket 5 and the screen 1 is fixed. When the activation area 101 of the screen 1 is pressed, only the deformable conductive element 4 is compressed and deformed, and the position of the connecting bracket 5 does not change, nor does the shape of the connecting bracket 5 deform. The connecting bracket 5 supports the deformable conductive element 4, preventing the deformable conductive element 4 from moving downward when under pressure, thereby ensuring that the deformable conductive element 4 can only undergo compression deformation, thereby preventing the top surface 401 of the deformable conductive element 4 from changing the contact surface with the screen 1.
[0045] Furthermore, in some embodiments of the present application, the connecting bracket 5 includes a first contact segment 501, a connecting segment 502, and a second contact segment 503. The first contact segment 501 is affixed to the bottom surface 402 of the deformable conductive element 4, the second contact segment 503 is affixed to the main control board 3, and the connecting segment 502 is connected between the first contact segment 501 and the second contact segment 503. Specifically, in some embodiments of the present application, the upper surface of the first contact segment 501 is planar, the bottom surface 402 of the deformable conductive element 4 is also planar, the first contact segment 501 is parallel to the second contact segment 503, the connecting segment 502 is perpendicular to the first contact segment 501 and the second contact segment 503, and the first contact segment 501 and the second contact segment 503 are disposed on either side of the connecting segment 502. The cross-section of the connecting bracket 5 is generally Z-shaped. This shape of the connecting bracket 5 provides increased strength and stability when subjected to stress.
[0046] To sum up, the touch screen device provided in the embodiment of the present application, by setting a deformable conductive element 4 under the screen 1, can change the contact area between the deformable conductive element 4 and the screen 1 when the screen 1 is pressed, thereby changing the resistance and capacitance values of the deformable conductive element 4. The main control board 3 activates the screen 1 by identifying the changes in the resistance and capacitance values, which can prevent accidental touching of the screen 1. Compared with the solution of using a pressure sensor to activate the screen 1, this is a simpler screen 1 activation solution with lower cost and lower requirements on the installation accuracy of the deformable conductive element 4. Therefore, on the basis of being able to achieve the same screen 1 activation effect, the production cost of the touch screen device is reduced.
[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0048] The foregoing description is intended only to provide specific embodiments of the present application, which will enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to be construed in the broadest manner consistent with the principles and novel features disclosed herein.
Claims
1. A touch screen device, characterized in that: include: A housing (2) having a mounting chamber with one side open; A screen (1) is snapped onto the opening of the installation chamber, and the screen (1) has an activation area (101); A main control board (3) is arranged in the installation chamber and has a gap between it and the screen (1); The deformable conductive element (4) is arranged between the screen (1) and the main control board (3), and is arranged corresponding to the activation area (101). The top surface (401) of the deformable conductive element (4) is in contact with the activation area (101) of the screen (1), and the bottom surface (402) of the deformable conductive element (4) is electrically connected to the main control board (3). When the deformable conductive element (4) is subjected to pressure, the contact area between the top surface (401) of the deformable conductive element (4) and the screen (1) increases.
2. The touch screen device according to claim 1, wherein: The top surface (401) of the deformable conductive element (4) is an arc surface, a conical surface or a sawtooth surface.
3. The touch screen device according to claim 1, wherein: The deformable conductive element (4) is an elastic member.
4. The touch screen device according to claim 1, wherein: A cavity (403) is provided in the deformable conductive element (4).
5. The touch screen device according to claim 4, wherein: The cavity (403) extends in a direction parallel to the screen (1).
6. The touch screen device according to claim 4, wherein: The deformable conductive element (4) is in the shape of an elongated strip, and the deformable conductive element (4) is arranged along the width direction of the screen (1).
7. The touch screen device according to claim 4, wherein: The cross section of the cavity (403) is circular.
8. The touch screen device according to claim 1, wherein: The activation area (101) is provided on the outer side of the screen (1), and an activation wiring area (102) is provided on the inner side of the screen (1). The activation wiring area (102) is arranged opposite to the activation area (101), and the activation wiring area (102) is in contact with the top surface (401) of the deformable conductive element (4).
9. The touch screen device according to claim 1, wherein: It also includes a connecting bracket (5), one end of which is connected to the deformable conductive element (4), and the other end of which is connected to the main control board (3).
10. The touch screen device according to claim 9, wherein: The connecting bracket (5) comprises a first contact segment (501), a connecting segment (502) and a second contact segment (503), wherein the first contact segment (501) is in contact with the bottom surface of the deformable conductive element (4), the second contact segment (503) is in contact with the main control board (3), and the connecting segment (502) is connected between the first contact segment (501) and the second contact segment (503).