WO2024020725A1

WO2024020725A1 - Force touch panel, and electronic device

Info

Publication number: WO2024020725A1
Application number: PCT/CN2022/107635
Authority: WO
Inventors: 郭益平; 张�荣
Original assignee: 深圳市汇顶科技股份有限公司
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2024-02-01
Also published as: CN115454251A; CN115398379A; CN218383929U

Abstract

Provided in the present application are a force touch panel and an electronic device. The force touch panel comprises a printed circuit board, a force sensor, a support plate, a touch controller and a tactile feedback component, wherein the support plate is arranged below the printed circuit board, and comprises a reinforcement region, a fastening region and two flexible connecting arms, two sides of the reinforcement region being connected to the fastening region by means of the two flexible connecting arms, the reinforcement region being fixedly connected to the printed circuit board, and the fastening region being configured to be fixedly connected to a housing of the electronic device; and the distances from a mounting position of the tactile feedback component to two long sides of the force touch panel are not equal in a first direction, wherein the first direction is the direction of short sides of the force touch panel.

Description

Pressure touchpads and electronic devices

Technical field

Embodiments of the present application relate to the field of electronic technology, and in particular, to a pressure touch panel and electronic equipment.

Background technique

For a pressure touch panel with tactile feedback function, the tactile feedback component needs to be placed in the center of the lower part of the touch panel to ensure that during actual experience, the same vibration experience can be felt in any area of the touch panel that is touched by the finger. .

However, in the actual stacking design process of the entire machine, components such as battery components and motherboards are mostly located directly under the touch panel. Battery cells will bulge during the charging and discharging process, and there is not much safe space when stacking the whole machine to prevent the metal objects of the tactile feedback components from coming into contact with the cells, causing puncture and safety accidents. Usually, the tactile feedback components will be placed away. Place the position offset.

After the tactile feedback component is offset, the problem of inconsistent vibration occurs.

Contents of the invention

In view of this, the present application provides a touch panel and electronic device that can solve the problem of inconsistent vibrations generated after the tactile feedback component is biased.

In a first aspect, a touch panel is provided, which is characterized in that it includes: a printed circuit board, a pressure sensor, a support plate, a touch controller and a tactile feedback component; a touch electrode layer is provided on the upper surface of the printed circuit board , the touch electrode layer is used to sense the touch position of the finger when the finger touches or presses the pressure touch panel, and outputs the corresponding touch sensing signal; the pressure sensor is arranged under the printed circuit board and is used to When a finger presses the pressure touch panel, it deforms and outputs a corresponding pressure sensing signal; the support plate is provided below the printed circuit board, and the support plate includes a reinforcing area, a fastening area and two flexible connecting arms. Both sides of the reinforcement area are connected to the fastening area through the two flexible connecting arms, the reinforcement area is fixedly connected to the printed circuit board, and the fastening area is used to be fixedly connected to the casing of the electronic device; The touch controller is installed and fixed on the printed circuit board and is electrically connected to the touch electrode layer and the pressure sensor, and is used to receive the touch sensing signal from the touch electrode layer to determine the position of the finger on the pressure touch panel. touch position, and receive the pressure sensing signal from the pressure sensor to determine the amount of pressure exerted by the finger; the tactile feedback component is installed on the lower surface of the printed circuit board, in the first direction, the installation position of the tactile feedback component The distance to the two long sides of the pressure touch panel is unequal; the tactile feedback component is electrically connected to the touch controller and is used to provide vibration feedback in response to the pressure exerted by the finger. The first direction is the pressure touch panel. The direction of the short side of the control panel.

The reinforcing area and fastening area of the support plate are integrated through a flexible connecting arm, which can simplify the assembly process of the pressure touch panel. And when the tactile feedback component vibrates, the vibration can be transmitted through the flexible connecting arm, which helps solve the problem of inconsistent vibration when the tactile feedback component is offset and improves the user's vibration experience.

In addition, arranging the flexible connecting arm in the window area between the fastening area and the outermost edge of the reinforcing area can damage the integrity of the reinforcing area as little as possible, so that the rigidity of the pressure touch panel is not affected. Next, solve the problem of inconsistent vibration when the tactile feedback component is offset.

In a possible implementation, there is a gap between the two flexible connecting arms and the printed circuit board, and the two flexible connecting arms are used to balance the vibration of the tactile feedback component.

There is a gap between the flexible connecting arm and the printed circuit board, so that when the tactile feedback component vibrates, the flexible connecting arm is relatively displaced within the gap to transmit the vibration, thereby balancing the vibration of the tactile feedback component.

In a possible implementation, the fastening area is arranged surrounding the reinforcing area, and in the second direction, two window areas are respectively formed between the outermost edges on both sides of the reinforcing area and the fastening area. , the two flexible connecting arms are respectively disposed in the two window areas; wherein the second direction is the long side direction of the pressure touch panel.

Since the two flexible connecting arms are arranged in the two window areas of the support plate in the second direction, the vibration generated by the tactile feedback component can be evenly distributed at various positions of the pressure touch panel, thereby solving the problem of tactile feedback component The vibration inconsistency problem during offset improves the user's vibration experience.

In a possible implementation, the two flexible connecting arms each include a main body part, a first connecting part and a second connecting part. The main body part extends along the first direction, and both ends of the main body part are respectively connected to the third connecting part. One end of a connecting part and one end of the second connecting part, the other end of the first connecting part is connected to the reinforcing area, and the other end of the second connecting part is connected to the fastening area.

In a possible implementation, the aspect ratio of the flexible connecting arm is greater than or equal to 10:1.

Setting the aspect ratio of the flexible connecting arm to greater than or equal to 10:1 can effectively shorten the vibration tailing time (or braking time) of the tactile feedback component, making the vibration experience crisper.

In a possible implementation, the width of the flexible connecting arm is greater than or equal to 2 mm.

Setting the width of the flexible connecting arm to greater than or equal to 2 mm can enhance the connection strength between the flexible connecting arm and the reinforcing area or fastening area, making the connection less likely to break.

In a possible implementation, the support plate is further provided with a cantilever beam structure. The cantilever beam structure is used to support the pressure sensor, and when the pressure touch panel is subjected to pressure, the pressure sensor is driven to deform together.

In this embodiment, the cantilever beam structure used to support the pressure sensor and the reinforcing plate used to support the touch panel are integrally formed. There is no need for an additional elastic bracket to support the pressure sensor, which reduces the number of components of the touch panel. , thereby simplifying the assembly process and saving costs.

In a possible implementation, in the second direction, the distance from the edge of the main body close to the reinforcement area to the inner edge of the fastening area is smaller than the distance from the edge of the cantilever beam structure close to the reinforcement area to the inner edge of the fastening area. Distance from the inside edge of the fastening area.

In the second direction, the size of the flexible connecting arm is set to be smaller than the size of the corresponding cantilever beam structure, and the area of the window area is reduced as much as possible to increase the area of the reinforcing area, thereby improving the pressure touch panel. of rigidity.

In a possible implementation, the support plate is provided with four cantilever beam structures, the four cantilever beam structures are symmetrically distributed at the four corners of the support plate, and the four corners of the reinforcement area are respectively along the four corners. The opposite direction of the corner is indented to avoid the four cantilever beam structures, which extend from the fastening area to the reinforcing area along the second direction.

In this embodiment, a cantilever beam structure is provided at each of the four corners of the support plate, which can increase the structural stability of the pressure touch panel. Secondly, symmetrically distributing the pressure sensors at the four corners of the support plate through the cantilever beam structure can also improve the uniformity of pressure detection.

In a possible implementation, the two first connecting portions of the two flexible connecting arms are respectively arranged close to two different cantilever beam structures arranged along the diagonal direction of the pressure touch panel; or the two The two first connecting portions of the flexible connecting arms are respectively disposed close to two different cantilever beam structures arranged along the second direction.

In a possible implementation, the pressure touch panel further includes: a protective panel disposed above the printed circuit board for touching and pressing by the finger.

In a possible implementation, the projection area of the fastening area onto the plane where the protection panel is located surrounds the protection panel, and the area of the projection area is larger than the area of the protection panel.

In a possible implementation, in the first direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the plane where the support plate is located is greater than 0; in the second direction, The distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the support plate is greater than 0.

In a possible implementation, the projection area of the fastening area onto the plane of the protective panel is located within the protective panel, and the two flexible connecting arms are connected together through the fastening area.

In a possible implementation, in the first direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the plane of the support plate is greater than the distance from the fastening area in the first direction. in the second direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the support plate is greater than the width of the fastening area in the second direction.

In a possible implementation, in the same direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the plane where the support plate is located is greater than the distance between the outermost edge of the reinforcement area and the inner side of the fastening area. The gap between edges.

In a possible implementation, the extension length of the cantilever beam structure is 12.95 mm, and the width of the cantilever beam structure is 8.5 mm.

In a possible implementation, a fastening point is provided at the fastening area connected to the root of the cantilever beam structure, so that the fastening area is fixedly connected to the casing at the fastening point.

In a second aspect, an electronic device is provided, including a casing and the first aspect and the pressure touch panel in any implementation manner of the first aspect. The casing is used to be fixedly connected to the fastening area.

In a possible implementation, the casing is used for locking connection with the fastening area.

Description of drawings

Figure 1 shows a schematic exploded view of the touch panel according to the embodiment of the present application.

FIG. 2 shows a schematic structural diagram of the flexible connecting arm in FIG. 1 .

FIG. 3 shows another schematic exploded view of the touch panel according to the embodiment of the present application.

Figure 4 shows a first schematic top view of the support plate according to the embodiment of the present application.

Figure 5 shows a second schematic top view of the support plate according to the embodiment of the present application.

Figure 6 shows a third schematic top view of the support plate according to the embodiment of the present application.

Figure 7 shows a fourth schematic top view of the support plate according to the embodiment of the present application.

Figure 8 shows a schematic exploded view of an electronic device according to an embodiment of the present application.

Figure 9 shows two schematic diagrams of the positions of the tactile feedback component in the pressure touch panel.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

A touchpad is an input device used in electronic devices to control the screen cursor. The touch panel detects tiny capacitance changes when the user's fingers operate on the panel area, and obtains touch information such as high-resolution finger coordinates to accurately control the screen cursor to move and click. Usually, the back of the trackpad is also equipped with a single button, which realizes the functions of the traditional left and right mouse buttons by detecting the behavior of the buttons.

In order to improve the operational convenience of touch panels, pressure touch panels have gradually become a new trend. A pressure touchpad eliminates the physical buttons of a conventional touchpad and adds pressure sensing and vibration feedback functions.

The tactile feedback component in the pressure touch panel of electronic equipment needs to be placed in the center of the bottom of the touch panel to ensure that the vibration consistency of the pressure touch panel is within a small range during actual experience, and the pressure touch of finger contact The same vibration experience can be felt in any area of the board.

However, in the actual stacking design process of the whole machine, the battery components and motherboard are mostly located directly under the pressure touch panel. Battery cells will bulge during the charging and discharging process, and there is not much safe space when stacking the whole machine to prevent the metal objects of the tactile feedback components from coming into contact with the cells, causing puncture and safety accidents. Normally, the tactile feedback components are placed Position offset. For example, the tactile feedback component can be placed between the plastic frame of the battery package and the touch panel, or between the motherboard and the touch panel.

After the tactile feedback component is offset, the problem of inconsistent vibration will arise.

In view of this, embodiments of the present application provide a pressure touch panel that can solve the problem of inconsistent vibration after the tactile feedback component is biased.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various electronic devices.

For example, portable or mobile computing devices such as smartphones, laptops, tablets, and gaming devices, as well as other electronic devices such as electronic databases, cars, and bank automated teller machines (ATMs). However, the embodiments of the present application are not limited to this.

FIG. 1 shows a schematic exploded view of the pressure touch panel 100 according to the embodiment of the present application. The pressure touch panel 100 can be applied to electronic devices. It should be noted that the “upper” and “lower” described below are positional relationships from the user's perspective, that is, for the user, the surface that the user's fingers can contact is the upper surface of the pressure touch panel 100 . As shown in FIG. 1 , the pressure touch panel 100 includes: a printed circuit board 110 , a pressure sensor 120 , a support plate 130 , a touch controller 140 and a tactile feedback component 150 .

A touch electrode layer (not shown in the figure) is provided on the upper surface of the printed circuit board 110. The touch electrode layer is used to sense the touch position of the finger when the finger touches or presses the pressure touch panel 100, and Output corresponding touch sensing signals; the pressure sensor 120 is disposed below the printed circuit board 110 to deform when a finger presses the pressure touch panel 100 and output a corresponding pressure sensing signal; the support plate 130 is disposed on Below the printed circuit board 110, the support plate 130 includes a reinforcing area 131, a fastening area 132 and two flexible connecting arms 133. As shown in Figure 1, the two flexible connecting arms 133 are respectively first flexible connecting arms. 1331 and the second flexible connecting arm 1332. The reinforcing area 131 is connected to the fastening area 132 through two flexible connecting arms 133 . For example, as shown in FIG. 1 , both sides of the reinforcing area 131 along the second direction Y are connected to the fastening area 132 through the first flexible connecting arm 1331 and the second flexible connecting arm 1332 respectively. The reinforcement area 131 is fixedly connected to the printed circuit board 110, and the fastening area 132 is used to be fixedly connected to the casing of the electronic device; the touch controller 140 is installed and fixed below the printed circuit board 110 and connected with the touch electrode layer. Be electrically connected to the pressure sensor 120 for receiving a touch sensing signal from the touch electrode layer to determine the touch position of the finger on the pressure touch panel 100, and receiving a pressure sensing signal from the pressure sensor 120 to determine the amount of pressure exerted by the finger; The tactile feedback component 150 is installed on the lower surface of the printed circuit board 110. In the first direction 150 is electrically connected to the touch controller 140 and is used for vibration feedback in response to the amount of pressure exerted by the finger.

It should be noted that in this application, the first direction X is the short side direction of the pressure touch panel 100 , and the second direction Y is the long side direction of the pressure touch panel 100 .

The pressure sensor 120 may be a resistive pressure sensor, also known as a piezoresistive force sensor. For example, pressure sensor 120 is a strain gauge pressure sensor. As shown in FIG. 1 , the pressure sensor 120 may be disposed between the support plate 130 and the printed circuit board 110 .

It should be noted that the tactile feedback component 150 in the embodiment of the present application provides vibration feedback to the user based on the pressure signal detected by the pressure sensor, but this does not rule out the possibility that the tactile feedback component 150 provides vibration feedback to the user based on other signals.

In addition to carrying and supporting the touch electrode layer, the printed circuit board 110 may also carry electronic components of the pressure touch panel 100 , which may include, for example, the touch controller 140 and the tactile feedback component 150 . The touch controller 140 may be electrically connected to the touch electrode layer and the pressure sensor 120, which is used to provide a driving signal to the touch electrode layer for capacitive touch detection on the one hand, and to perform capacitive touch detection when a finger presses on the pressure touch panel 100 on the other hand. The touch sensing signal and the pressure sensing signal output by the touch electrode layer and the pressure sensor 120 are received, and the finger position information and the pressure exerted by the finger are determined based on the touch sensing signal and the pressure sensing signal. And the touch controller 140 can also be connected to the tactile feedback component 150, and further used to respond to the detected pressure and drive the tactile feedback component 150 to perform vibration feedback. In a specific embodiment, the touch controller 140 may be a touch chip that integrates pressure detection and touch position detection, or may include two separately provided pressure detection chips for detecting pressure and a touch chip for detecting touch positions. chip.

Specifically, in the embodiment of the present application, the support plate 130 is used to support the printed circuit board 110 and should have a certain strength, so the support plate 130 can also be called a reinforcing plate. The support plate 130 may include a reinforcing area 131 and a fastening area 132. The reinforcing area 131 refers to a partial area of the support plate 130 used to support the printed circuit board 110. That is to say, the reinforcing area 131 and The lower surface of the printed circuit board 110 is fixedly connected. For example, the reinforcing area 131 can be bonded to the lower surface of the printed circuit board 110 . The fastening area 132 refers to a partial area of the support plate 130 for mounting the support plate 130 to the electronic device. For example, the fastening area 132 can connect the support plate 130 to the casing of the electronic device. The support plate 130 also includes a flexible connecting arm 133. The reinforcing area 131 and the fastening area 132 are connected through the flexible connecting arm 133, that is, the reinforcing area 131 and the fastening area 132 are flexibly connected. The flexible connection can also be called a flexible connection, so the flexible connecting arm 133 can also be called a flexible arm. The flexible connecting arm 133 in the embodiment of the present application not only restrains or transmits vibrations, but also can have a certain degree of relative displacement. That is, there may be a gap between the flexible connecting arm 133 and the lower surface of the printed circuit board 110 . When the tactile feedback component 150 vibrates, the flexible connecting arm 133 can vibrate up and down in the gap, thereby balancing the vibration of the tactile feedback component 150 .

Therefore, in the pressure touch panel of the embodiment of the present application, the reinforcing area and the fastening area of the support plate are integrally connected through the flexible connecting arm, which can simplify the assembly process of the pressure touch panel. And when the tactile feedback component vibrates, the vibration can be transmitted through the relative displacement of the flexible connecting arm, which is beneficial to the vibration generated by the tactile feedback component being evenly distributed at various positions of the pressure touch panel, thereby solving the problem of offset of the tactile feedback component. solve the vibration inconsistency problem and improve the user’s vibration experience.

Optionally, as shown in FIGS. 4 to 7 , the fastening area 132 is provided surrounding the reinforcing area 131 , in the second direction Y, between the outermost edges on both sides of the reinforcing area 131 and the fastening area 132 Two window opening areas 134 are respectively formed, and the two flexible connecting arms 133 are respectively provided in the two window opening areas 134 . The two window opening areas 134 include a first window opening area 1341 and a second window opening area 1342 . For example, as shown in FIGS. 4 to 7 , in the second direction Y, a first window area 1341 is formed between the outermost edge on the right side of the reinforcement area 131 and the fastening area 132 . A second window opening area 1342 is formed between the outermost edge and the fastening area 132, wherein the first flexible connecting arm 1331 is disposed in the first window opening area 1341, and the second flexible connecting arm 1332 is disposed in the second window opening area 1342. Inside.

Optionally, the two flexible connecting arms 133 can be symmetrically arranged in the two window areas 134. For example, the first flexible connecting arm 1331 and the second flexible connecting arm 1332 are axially symmetrical in the second direction Y, that is, supporting After the plate 130 is folded in half along the center line of the support plate 130 in the second direction Y, the first flexible connecting arm 1331 and the second flexible connecting arm 1332 can be completely overlapped. For another example, the first flexible connecting arm 1331 and the second flexible connecting arm 1332 are centrally symmetrical around the center point of the support plate 130. That is, after the first flexible connecting arm 1331 is rotated 180 degrees around the center point of the support plate 130, it can be connected with the second flexible connecting arm 1331. The flexible connecting arms 1332 are completely overlapped.

In this embodiment, the flexible connecting arm is arranged in the window area between the fastening area and the outermost edge of the reinforcing area, which can damage the integrity of the reinforcing area as little as possible, so as not to affect the pressure touch control. When the board is rigid, the problem of vibration inconsistency when the tactile feedback component is offset is solved.

FIG. 2 is a schematic enlarged view of the first flexible connecting arm 1331 in FIG. 1 . As shown in FIG. 2 , the first flexible connecting arm 1331 includes a main body part 13311 , a first connecting part 13312 and a second connecting part 13313 . The main body portion 13311 of the first flexible connecting arm 1331 extends along the first direction One end of the second connecting portion 13313 of a flexible connecting arm 1331, the other end of the first connecting portion 13312 of the first flexible connecting arm 1331 is connected to the reinforcing area 131, and the second connecting portion 13313 of the first flexible connecting arm 1331 The other end is connected to the fastening area 132.

It should be understood that the first connecting portion 13312 in this application refers to the area extending from one end of the reinforcing area 131 toward the direction of the fastening area 132, and the second connecting portion 13313 refers to the area starting from one end of the fastening area 132 toward the reinforcing area. The area extending in the direction of 131.

Optionally, in the embodiment of the present application, the aspect ratio of the main body part is greater than or equal to 10:1.

As shown in FIG. 2 , the length of the main body portion 13311 of the first flexible connecting arm 1331 is the length of arrow 1 to arrow 2 . The width of the main body portion 13311 of the first flexible connecting arm 1331 is the length of arrow 3 to arrow 4. It should be noted that the structure and size of the second flexible connecting arm 1332 may refer to the description of the first flexible connecting arm 1331, and for the sake of simplicity, they will not be described again here.

Setting the aspect ratio of the main body of the flexible connecting arm to greater than or equal to 10:1 can effectively shorten the vibration tailing time (or braking time) of the tactile feedback component, making the vibration experience crisper.

Optionally, in this embodiment of the present application, the width of the main body of the flexible connecting arm is greater than or equal to 2 mm.

Further, in order to ensure that the aspect ratio of the main body of the flexible connecting arm is greater than or equal to 10:1, the length of the main body of the flexible connecting arm may be greater than or equal to 20 mm.

Setting the width of the main body of the flexible connecting arm to greater than or equal to 2 mm can enhance the connection strength between the flexible connecting arm and the reinforcing area or fastening area, making the connection less likely to break.

The length of the first connecting portion 13312 of the first flexible connecting arm 1331 along the first direction X is greater than the length of the main body portion 13311 of the first flexible connecting arm 1331 along the second direction Y, that is, Width, similarly, the length of the second connecting portion 13313 along the first direction X is greater than the width of the main body portion 13311 of the first flexible connecting arm 1331 . For the structure and size of the second flexible connecting arm 1332, reference can be made to the description of the first flexible connecting arm 1331, and for the sake of simplicity, they will not be described again here.

The first connecting part and the second connecting part of the flexible connecting arm are arranged so that the lengths along the first direction Connectivity between support plates.

FIG. 3 shows another schematic exploded view of the pressure touch panel 100 according to the embodiment of the present application.

Optionally, as shown in FIG. 3 , the support plate 130 is also provided with a cantilever beam structure 135 . The cantilever beam structure 135 can be used to support the pressure sensor 120 and drive the pressure sensor when the pressure touch panel 100 is under pressure. 120 deformed together.

The cantilever beam structure 135 refers to the reinforcing area 131 relative to the support plate 130 , which is suspended below the printed circuit board 110 . That is to say, there is a gap between the cantilever beam structure 135 and the printed circuit board 110 . For example, the lower surface of the cantilever beam structure 135 is flush with the lower surface of the reinforcement area 131, and the thickness of the cantilever beam structure 135 is smaller than the thickness of the reinforcement area 131, so that the cantilever beam structure 135 is in contact with the printed There are gaps between the circuit boards 110 . Optionally, the cantilever beam structure 135 is used to support the pressure sensor 120 . It can be understood that the pressure sensor 120 is fixed on the upper surface of the cantilever beam structure 135 . Alternatively, the pressure sensor 120 can also be fixed on the lower surface of the cantilever beam structure 135 . It should be noted that the lower surface of the cantilever beam structure 135 here refers to the surface of the cantilever beam structure 135 away from the printed circuit board 110 , and the upper surface of the cantilever beam structure 135 here refers to the surface close to the printed circuit board 110 .

In this embodiment, the cantilever beam structure used to support the pressure sensor and the reinforcing plate used to support the printed circuit board are integrally formed, without the need for additional elastic brackets used to support the pressure sensor, reducing the number of pressure touch panels. The number of components simplifies the assembly process and saves costs.

Optionally, as shown in FIG. 3 , the support plate 130 is provided with four cantilever beam structures, including a first cantilever beam structure 1351 , a second cantilever beam structure 1352 , a third cantilever beam structure 1353 and a fourth cantilever beam structure 1354 , the four cantilever beam structures are symmetrically distributed at the four corners of the support plate 130 , and the four corners of the reinforcing area 131 are respectively indented along the opposite directions of the four corners to avoid the four cantilever beam structures. The four cantilever beam structures are integrated with the fastening area 132, and the four cantilever beam structures respectively extend in the second direction Y from the fastening area 132 to the reinforcing area 131.

In this embodiment, a cantilever beam structure is provided at each of the four corners of the support plate 130, which can increase the structural stability of the touch panel. Secondly, distributing the pressure sensors at the four corners of the support plate through the cantilever beam structure can also improve the uniformity of pressure detection.

Those skilled in the art understand that the number of cantilever beam structures is not limited in the embodiments of the present application. For example, the support plate may be provided with six cantilever beam structures, and the six cantilever beam structures may be symmetrically arranged at four corners of the support plate and at the center of two sides of the support plate extending along the second direction Y.

Optionally, when the lower surface of the support plate 130 is flat, the upper surface of the cantilever beam structure 135 can be flush with the upper surface of the flexible connecting arm 133. That is to say, the thickness of the cantilever beam structure 135 is equal to The flexible connecting arms 133 have the same thickness. That is, the gap between the cantilever beam structure 135 and the printed circuit board 110 is the same as the gap between the flexible connecting arm 133 and the printed circuit board 110 . In other examples, the gap between the cantilever beam structure 135 and the printed circuit board 110 may be different from the gap between the flexible connecting arm 133 and the printed circuit board 110 . Likewise, the lower surface here is the surface away from the printed circuit board 110 , and the upper surface here is the surface close to the printed circuit board 110 .

Optionally, as shown in FIG. 3 , the pressure touch panel 100 further includes a protective panel 160 , which is disposed above the printed circuit board 110 and is used for touching and pressing with fingers. Optionally, the protective panel 160 can also be used as an exterior decoration, generally using glass or polyester film (mylar).

Further, the protective panel 160 can be bonded to the printed circuit board 110 through the first glue 171 .

Optionally, as shown in FIG. 3 , the support plate 130 can be bonded to the printed circuit board 110 through a second glue 172 . Specifically, the reinforcing area 131 of the support plate 130 and the printed circuit board 110 are bonded together through the second glue 172 .

Optionally, the first glue 171 and the second glue 172 in the embodiment of the present application can be double-sided tape, flexible glue or glue pads.

Optionally, in the embodiment of the present application, as shown in FIG. 3 , the pressure touch panel 100 further includes: a damping component 180 , which is disposed between the printed circuit board 110 and the cantilever beam structure 135 and is used for pressing the pressure touch panel 100 . When the control panel 100 is subjected to pressure, the cantilever beam structure 135 is deformed.

Specifically, the damping component 180 may be disposed on the upper surface of the cantilever beam structure 135 side by side with the pressure sensor 120 . And the damping component 180 can fill the gap between the upper surface of the cantilever beam structure 135 and the lower surface of the printed circuit board 110 . When a finger presses the pressure touch panel 100, the damping component 180 can cause the cantilever beam structure 135 to deform, thereby causing the pressure sensor 120 to deform.

In this embodiment, by disposing a damping component between the cantilever beam structure and the printed circuit board, the cantilever beam structure can be deformed, thereby causing the pressure sensor to deform, so that the pressure sensor detects pressure.

Optionally, in one example, the damping component 180 may be a silicone composite material, such as a silicone pad. In other examples, the damping component 180 may be a spring.

The damping component 180 can not only be used to drive the cantilever beam structure 135 to deform, but can also be used to absorb aftershocks generated by the tactile feedback component 150 .

Optionally, the hardness of the damping component 180 can be selected between Shore hardness 20A and 30A to ensure that the damping component has a certain rigidity and avoid straining the damping component itself when the pressure touch panel 100 is under pressure, affecting pressure detection. accuracy.

Optionally, the thickness of the damping component 180 can be set between 0.5 mm and 0.8 mm, which can avoid insufficient strain space of the cantilever beam structure 135 caused by too small a thickness of the damping component 180 , thereby causing the cantilever beam structure 135 to support The pressure sensor cannot detect pressure effectively. It can also avoid the problem of inconsistent vibration of the pressure touch panel caused by excessive thickness of the damping component 180 .

Optionally, in this embodiment of the present application, the tactile feedback component 150 may be a linear motor, for example, a linear motor for X- or Y-axis vibration. The tactile feedback component 150 may also be a piezoelectric ceramic sheet or the like. Alternatively, the tactile feedback component 150 can also be other suitable actuators. Tactile feedback component 150 may be adhered to an underside of printed circuit board 110 , for example, to a lower surface of printed circuit board 110 .

Continuing to refer to FIG. 3 , the reinforcement area 131 also includes a tactile feedback component avoidance hole 136 for avoiding the tactile feedback component 150 . In the first direction The distance from the installation position of the lower surface to the two long sides of the pressure touch panel 100 is not equal. That is, the tactile feedback component 150 is biased toward one long side of the pressure touch panel 100 relative to the center point of the pressure touch panel 100 . For example, in FIG. 3 , the distance L1 between the center point of the tactile feedback component escape hole 136 and the first long side of the support plate 130 and the distance L2 between the center point and the second long side of the support plate 130 are not equal. .

As shown in Figure 3, the reinforcement area 131 may also include an avoidance hole 137, which may be located in the middle area of the reinforcement area. The avoidance hole 137 may be used to avoid near field communication (Near Field Communication, NFC) chips. , ensuring reasonable utilization of the space of the pressure touch panel 100 to increase the application of the pressure touch panel 100 . The escape hole 137 can also avoid the touch controller 140, so that the touch controller 140 is fixedly installed on the lower surface of the printed circuit board through the escape hole 137.

Optionally, as shown in FIG. 3 , the pressure sensor 120 can be electrically connected to the printed circuit board 110 through a flexible printed circuit (FPC) 170 of the pressure sensor. That is to say, the pressure sensing signal detected by the pressure sensor 120 can be transmitted to the printed circuit board 110 through the FPC 170 of the pressure sensor, so that the touch controller 140 drives the tactile feedback component 150 to generate vibration after receiving the pressure sensing signal.

4 to 7 show various schematic top views of the support plate 130 provided by embodiments of the present application.

Specifically, as shown in FIGS. 4 to 7 , the support plate 130 includes a reinforcing area 131 , a fastening area 132 and two flexible connecting arms 133 . The two flexible connecting arms 133 include a first flexible connecting arm 1331 and a third flexible connecting arm 1331 . Two flexible connecting arms 1332, in the second direction Y, form a second window opening area 1342 between the outermost edge on the left side of the reinforcement area 131 and the fastening area 132, and the outermost edge on the right side of the reinforcement area 131 and the fastening area A first window opening area 1341 is formed between 132, and the first flexible connecting arm 1331 and the second flexible connecting arm 1332 are symmetrically arranged in the first window opening area 1341 and the second window opening area 1342 respectively.

Similar to Figure 2, the first flexible connecting arm 1331 in Figures 4 to 7 includes a main body part 13311, a first connecting part 13312 and a second connecting part 13313. The two ends of the main body part 13311 of the first flexible connecting arm 1331 are respectively Connect one end of the first connecting portion 13312 of the first flexible connecting arm 1331 and one end of the second connecting portion 13313 of the first flexible connecting arm 1331, and the other end of the first connecting portion 13312 of the first flexible connecting arm 1331 is connected to the reinforcing The other end of the second connecting portion 13313 of the first flexible connecting arm 1331 is connected to the fastening area 132 . The second flexible connecting arm 1332 includes a main body part 13321, a first connecting part 13322 and a second connecting part 13323. Both ends of the main body part 13321 of the second flexible connecting arm 1332 are respectively connected to the first connecting parts of the second flexible connecting arm 1332. One end of 13322 and one end of the second connecting portion 13323 of the second flexible connecting arm 1332, the other end of the first connecting portion 13322 of the second flexible connecting arm 1332 is connected to the reinforcing area 131, and the second flexible connecting arm 1332 The other end of the second connecting part 13323 is connected to the fastening area 132 .

Optionally, the first connecting part and the second connecting part are respectively disposed close to two different cantilever beam structures arranged along the first direction X. For example, as shown in FIGS. 4 and 6 , the first connecting portion 13312 of the first flexible connecting arm 1331 is disposed close to the first cantilever beam structure 1351 and the second connecting portion 13313 of the first flexible connecting arm 1331 is disposed close to the second cantilever beam structure. 1352 settings. The first connecting portion 13322 of the second flexible connecting arm 1332 is disposed close to the fourth cantilever beam structure 1354 and the second connecting portion 13323 of the second flexible connecting arm 1332 is disposed close to the third cantilever beam structure 1353 . For another example, as shown in FIGS. 5 and 7 , the first connecting portion 13312 of the first flexible connecting arm 1331 is disposed close to the first cantilever beam structure 1351 and the second connecting portion 13313 of the first flexible connecting arm 1331 is disposed close to the second cantilever beam. Structure 1352 settings. The first connecting portion 13322 of the second flexible connecting arm 1332 is disposed close to the third cantilever beam structure 1353 and the second connecting portion 13323 of the second flexible connecting arm 1332 is disposed close to the fourth cantilever beam structure 1354 .

It can also be seen from Figures 4 to 7 that the flexible connecting arm is provided between two cantilever beam structures arranged along the first direction X. For example, the first flexible connecting arm 1331 is provided between the first cantilever beam structure 1351 and the second cantilever beam structure 1352, and the second flexible connecting arm 1332 is provided between the third cantilever beam structure 1353 and the fourth cantilever beam structure 1354.

Optionally, in the second direction, the distance from the main body portion of the flexible connecting arm close to the reinforcing area to the inner edge of the fastening area is smaller than the distance from the edge of the cantilever beam structure close to the reinforcing area to the inner edge of the fastening area. distance. Taking the right side in FIG. 4 as an example, in the second direction Y, the distance L3 between the edge of the main body 13311 of the first flexible connecting arm 1331 close to the reinforcing area 131 and the inner edge of the fastening area 132 is smaller than the second direction Y. The distance L4 is between the edge of the cantilever beam structure 1352 close to the reinforcing area 131 and the inner edge of the fastening area 132 . This arrangement solves the problem of vibration inconsistency when the tactile feedback component 150 is biased while increasing the rigidity of the pressure touch panel 100 .

Optionally, as shown in FIGS. 4 and 6 , the first connecting portion 13312 of the first flexible connecting arm 1331 and the first connecting portion 13322 of the second flexible connecting arm 1332 are respectively close to two different connecting portions arranged along the second direction Y. The second connecting portion 13313 of the first flexible connecting arm 1331 and the second connecting portion 13323 of the second flexible connecting arm 1332 are respectively arranged close to two other different cantilever beam structures arranged along the second direction Y. For example, the first cantilever beam structure 1351 and the fourth cantilever beam structure 1354 are arranged along the second direction Y, while the second cantilever beam structure 1352 and the third cantilever beam structure 1353 are arranged along the second direction Y, and the first flexible connecting arm 1331 The first connecting portion 13312 is disposed close to the first cantilever beam structure 1351, the first connecting portion 13322 of the second flexible connecting arm 1332 is disposed close to the fourth cantilever beam structure 1354, and the second connecting portion 13313 of the first flexible connecting arm 1331 is disposed close to the fourth cantilever beam structure 1354. Two cantilever beam structures 1352 are provided, and the second connecting portion 13323 of the second flexible connecting arm 1332 is provided close to the third cantilever beam structure 1353.

Optionally, as shown in FIGS. 5 and 7 , the first connecting portion 13312 of the first flexible connecting arm 1331 and the first connecting portion 13322 of the second flexible connecting arm 1332 are respectively close to the diagonal line along the pressure touch panel 100 Two different cantilever beam structures are arranged in different directions; the second connecting portion 13313 of the first flexible connecting arm 1331 and the second connecting portion 13323 of the second flexible connecting arm 1332 are respectively close to the other diagonal corner along the pressure touch panel 100 Two different cantilever beam structures are arranged in the linear direction. For example, the first cantilever beam structure 1351 and the third cantilever beam structure 1353 are arranged along the diagonal direction of the pressure touch panel 100 , while the second cantilever beam structure 1352 and the fourth cantilever beam structure 1354 are arranged along the other side of the pressure touch panel 100 . Arranged in a diagonal direction, the first connecting portion 13312 of the first flexible connecting arm 1331 is arranged close to the first cantilever beam structure 1351, the first connecting portion 13322 of the second flexible connecting arm 1332 is arranged close to the third cantilever beam structure 1353, and The second connecting portion 13313 of the first flexible connecting arm 1331 is disposed close to the second cantilever beam structure 1352 , and the second connecting portion 13323 of the second flexible connecting arm 1332 is disposed close to the fourth cantilever beam structure 1354 .

Optionally, as shown in Figures 4 and 5, the projection area of the fastening area 132 projected onto the plane of the protective panel surrounds the protective panel (not shown in the figure, located directly above the area surrounded by the dotted line in the figure) , and the area of the projection area is larger than the area of the protective panel.

Optionally, in the embodiment shown in Figures 4 and 5, in the first direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the plane where the support plate is located is greater than 0; in the In the second direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the support plate is greater than 0. Taking Figure 4 as an example, in the first direction , the distance from the outermost edge of the reinforcement area 131 to the outer edge of the protective panel projected on the support plate 130 is L6, L6=7.05mm. In this case, the arrangement ensures that the fastening area 132 is fixedly connected to the casing of the electronic device while maximizing the rigidity of the pressure touch panel 100 .

Optionally, as shown in Figures 6 and 7, the projection area of the fastening area 132 onto the plane of the protective panel is located on the protective panel (not shown in the figure, located directly above the area surrounded by the dotted line in the figure) Inside, the fastening area 132 surrounds the reinforcing area 131 , and the two flexible connecting arms 133 are connected together through the fastening area 132 .

Optionally, in the embodiment shown in Figures 6 and 7, in the first direction, the distance from the outermost edge of the reinforcement area to the outer edge of the protective panel projected on the plane where the support plate is located is greater than 0 and greater than The width of the fastening area in the first direction width of the fastening area. Taking FIG. 6 as an example, in the first direction The width of the fastening area 132 is W1, and L7 is greater than W1. In the second direction Y, the distance from the outermost edge of the reinforcing area 131 to the outer edge of the protective panel projected on the support plate 130 is L8, L8=12.55 mm, the width of the fastening area 132 in the second direction Y is W2, and L8 is greater than W2. In this case, this arrangement is beneficial to the fixed connection between the fastening area 132 and the casing of the electronic device while ensuring the rigidity of the pressure touch panel 100 .

Optionally, as shown in Figures 4 to 7, whether in the first direction The distance is greater than the gap between the outermost edge of the reinforcing area 131 and the inner edge of the fastening area. For example, as shown in FIGS. 4 and 5 , in the first direction X, L5 is equal to the sum of the size of the window area between the reinforcement area 131 and the fastening area 132 and the width of the partial fastening area. In the second direction Y, L6 is equal to the sum of the size of the window area between the reinforcing area 131 and the fastening area 132 and the width of the partial fastening area. For another example, as shown in FIGS. 6 and 7 , in the first direction X, L7 is equal to the sum of the size of the window area between the reinforcing area 131 and the fastening area 132 and the width of the entire fastening area. In the second direction Y, L8 is equal to the sum of the size of the window area between the reinforcing area 131 and the fastening area 132 and the width of the entire fastening area.

Optionally, in the embodiment of the present application, the extension length of the cantilever beam structure is 12.95 mm, and the width of the cantilever beam structure is 8.5 mm. Taking the first cantilever beam structure 1351 in FIG. 4 as an example, the extension length of the first cantilever beam structure 1351 is L9 as shown in the figure, and the width of the first cantilever beam structure 1351 is L10 as shown in the figure. Such an arrangement can improve the detection sensitivity of the pressure sensor.

As mentioned above, there is a gap between the flexible connecting arm 133 and the printed circuit board 110. The size range of the gap may be 0.2 mm to 1 mm. Further, the size range of the gap may be 0.6 mm to 0.7 mm. The direct gap between the flexible connecting arm 133 and the printed circuit board 110 is within this numerical range, so that the vibration effect of the balanced tactile feedback component 150 is better.

Optionally, as shown in Figures 4 to 7, a fastening point is provided at the fastening area connected to the root of the cantilever beam structure, so that the fastening area is fixed to the casing of the electronic device at the fastening point connection and reuse the fastening point as a fixed end of the cantilever beam structure. The free end of the cantilever structure is used to deform along with the pressure sensor.

Optionally, as shown in FIG. 8 , the embodiment of the present application also provides an electronic device 10 , including a casing 200 and the pressure touch panel 100 in the various embodiments described above. The casing 200 and the pressure touch panel 100 The fastening area 132 of the touch panel 100 is fixedly connected.

The casing 200 is used to carry internal components of the electronic device 10, such as battery components, motherboards, etc.

Optionally, the casing 200 is lockably connected to the fastening area 132 . As shown in Figure 8, the casing 200 is provided with a groove 210. The groove 210 can completely accommodate the pressure touch panel 100. The bottom surface 220 of the groove is the assembly surface of the casing. The bottom surface 220 is provided with a mounting surface. Hole 221. A fixing hole 1321 is provided at a corresponding position of the fastening area 132 of the support plate 130 in the pressure touch panel 100. The support plate 130 can be installed on an electronic device through a fastener 400, such as a fastening nut. On the casing 200 of the electronic device 10 , the pressure touch panel 100 is fixed on the casing 200 of the electronic device 10 .

Optionally, the casing 200 and the fastening area 132 can also be fixedly connected by riveting or laser spot welding. The embodiment of the present application does not limit the fixing method of the casing and the fastening area 132 .

It should be noted that FIG. 8 only shows one possible case. Those skilled in the art will understand that a suitable case can be designed according to the pressure touch panel 100 provided in the various embodiments mentioned above.

Figure 9 shows two schematic diagrams of the positions of the tactile feedback component in the pressure touch panel. As shown in Figure 9, the tactile feedback component can be placed at the geometric center of the pressure touch panel, that is, position 1; the tactile feedback component can also be placed offset to one long side of the pressure touch panel relative to the geometric center of the pressure touch panel. The position that is set is position 2. For the pressure touch panel with the tactile feedback component set at position 1 and without a flexible connecting arm, the vibration consistency is better. The test results are shown in Table 1. Specifically, the pressure touch panel in Figure 9 can be divided into 9 areas according to the top, middle, bottom and left, center and right, and the acceleration G of each of the 9 areas and the average, standard deviation and average value of the 9 areas can be obtained respectively. consistency.

Table 1

For the pressure touch panel with the tactile feedback component set at position 2, without a flexible connecting arm, the vibration consistency is poor. The test results are shown in Table 2. Specifically, the pressure touch panel in Figure 9 can be divided into 9 areas according to the top, middle, bottom and left, center and right, and the acceleration G of each of the 9 areas and the average, standard deviation and average value of the 9 areas can be obtained respectively. consistency.

Table 2

For the pressure touch panel with the tactile feedback component set at position 2 and the flexible connecting arm in the above embodiment, the vibration consistency is better. The test results are shown in Table 3. Specifically, the pressure touch panel in Figure 9 can be divided into 9 areas according to the top, middle, bottom and left, center and right, and the acceleration G of each of the 9 areas and the average, standard deviation and average value of the 9 areas can be obtained respectively. consistency.

table 3

It can be seen from Tables 1 to 3 that the tactile feedback component is set at position 2, and the vibration consistency of the pressure touch panel with the flexible connecting arm of the above embodiment is close to or even better than that the tactile feedback component is set at position 1 and is not The vibration consistency of the pressure touch panel provided with the flexible connecting arm has been verified for many times and the vibration consistency of the pressure touch panel using the embodiments of the present application can be within 5%.

It will be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A pressure touch panel (100), characterized by including: a printed circuit board (110), a pressure sensor (120), a support plate (130), a touch controller (140) and a tactile feedback component (150);

A touch electrode layer is provided on the upper surface of the printed circuit board (110). The touch electrode layer is used to sense the touch position of the finger when the finger touches or presses the pressure touch panel (100), and Output the corresponding touch sensing signal;

The pressure sensor (120) is arranged below the printed circuit board (110), and is used to deform when the finger presses the pressure touch panel (100) and output a corresponding pressure sensing signal;

The support plate (130) is provided below the printed circuit board (110). The support plate (130) includes a reinforcing area (131), a fastening area (132) and two flexible connecting arms (133 ), both sides of the reinforcement area (131) are connected to the fastening area (132) through the two flexible connecting arms (133), and the reinforcement area (131) is connected to the printed circuit The board (110) is fixedly connected, and the fastening area (132) is used to be fixedly connected to the casing of the electronic device;

The touch controller (140) is installed and fixed below the printed circuit board (110) and is electrically connected to the touch electrode layer and the pressure sensor (120) for switching from the touch electrode layer to the pressure sensor (120). receiving the touch sensing signal to determine the touch position of the finger on the pressure touch panel (100), and receiving the pressure sensing signal from the pressure sensor (120) to determine the amount of pressure exerted by the finger;

The tactile feedback component (150) is installed on the lower surface of the printed circuit board (110). In the first direction (X), the installation position of the tactile feedback component (150) is to the pressure touch panel. The distance between the two long sides is not equal, and the tactile feedback component (150) is electrically connected to the touch controller (140) for providing vibration feedback in response to the amount of pressure exerted by the finger;

Wherein, the first direction (X) is the short side direction of the pressure touch panel (100).
The pressure touch panel (100) according to claim 1, characterized in that there is a gap between the two flexible connecting arms (133) and the printed circuit board (110), and the two flexible connecting arms (133) and the printed circuit board (110) have a gap. The connecting arm (133) is used to balance the vibration of the tactile feedback component.
The pressure touch panel (100) according to claim 2, characterized in that the fastening area is arranged surrounding the reinforcing area (131), and in the second direction (Y), the reinforcing area (131) 131) Two window opening areas (134) are respectively formed between the outermost edges on both sides and the fastening area (132), and the two flexible connecting arms (133) are respectively provided in the two window opening areas. (134) within;

Wherein, the second direction (Y) is the long side direction of the pressure touch panel.
The pressure touch panel (100) according to claim 3, characterized in that the two flexible connecting arms (133) each include a main body part (13311/13321), a first connecting part (13312/13322) and a third Two connecting parts (13313/13323), the main body part (13311/13321) extends along the first direction (X), and the two ends of the main body part (13311/13321) are respectively connected to the first connecting part ( 13312/13322) and one end of the second connecting part (13313/13323), the other end of the first connecting part (13312/13322) is connected to the reinforcing area (131), and the second The other end of the connecting portion (13313/13323) is connected to the fastening area (132).
The pressure touch panel (100) according to claim 4, characterized in that the aspect ratio of the main body portion (13311/13321) is greater than or equal to 10:1.
The pressure touch panel (100) according to claim 5, characterized in that the width of the main body portion (13311/13321) is greater than or equal to 2 mm.
The pressure touch panel (100) according to any one of claims 4 to 6, characterized in that the support plate (130) is provided with a cantilever beam structure (135), and the cantilever beam structure (135) is To support the pressure sensor (120), and when the pressure touch panel (100) bears pressure, the pressure sensor (120) is driven to deform together.
The pressure touch panel (100) according to claim 7, characterized in that, in the second direction (Y), the main body portion (13311/13321) is close to the edge of the reinforcement area (131) The distance (L3) to the inner edge of the fastening area (132) is smaller than the distance (L3) from the edge of the cantilever beam structure (135) close to the reinforcing area (131) to the inner edge of the fastening area (132). Distance (L4).
The pressure touch panel (100) according to claim 7, characterized in that the support plate (130) is provided with four cantilever beam structures (135), and the four cantilever beam structures (135) are symmetrically distributed on The four corners of the support plate and the four corners of the reinforcement area (131) are respectively recessed in the opposite direction of the four corners to avoid the four cantilever beam structures (135). A cantilever beam structure (135) extends from the fastening area (132) to the reinforcing area (131) along the second direction (Y).
The pressure touch panel (100) according to claim 9, characterized in that the two first connecting portions (13312/13322) of the two flexible connecting arms (133) are respectively close to the pressure touch panel along the pressure touch panel. Two different cantilever beam structures (135) are arranged in diagonal directions of the control panel (100).
The pressure touch panel (100) according to claim 9, characterized in that the two first connecting portions (13312/13322) of the two flexible connecting arms (133) are respectively close to the second connecting portion along the second Two different cantilever beam structures (135) are arranged in the direction (Y).
The pressure touch panel (100) according to any one of claims 3 to 11, characterized in that the pressure touch panel (100) further includes:

A protective panel (160) is provided above the printed circuit board (110) and is used for touching and pressing by the finger.
The pressure touch panel (100) according to claim 12, characterized in that the projection area of the fastening area (132) onto the plane where the protective panel (160) is located surrounds the protective panel (160). And the area of the projection area is larger than the area of the protective panel.
The pressure touch panel (100) according to claim 13, characterized in that, in the first direction (X), the outermost edge of the reinforcement area (131) to the protective panel (160) The distance (L5) projected on the outer edge of the plane where the support plate (130) is located is greater than 0; in the second direction (Y), the distance from the outermost edge of the reinforcement area (131) to the protective panel (160) The distance (L6) projected on the outer edge of the support plate (130) is greater than 0.
The pressure touch panel (100) according to claim 12, characterized in that the projection area of the fastening area (132) onto the plane where the protective panel (160) is located is located on the protective panel (160). Inside, the two flexible connecting arms (133) are connected together through the fastening area (132).
The pressure touch panel (100) according to claim 15, characterized in that, in the first direction (X), the outermost edge of the reinforcement area (131) to the protective panel (160) The distance (L7) projected on the outer edge of the plane where the support plate (130) is located is greater than the width of the fastening area along the first direction (X); in the second direction (Y), The distance (L8) from the outermost edge of the reinforcement area (131) to the outer edge of the protective panel (160) projected on the support plate (130) is greater than all distances along the second direction (Y). Describe the width of the fastening area.
The pressure touch panel (100) according to any one of claims 7 to 11, characterized in that the fastening area (132) connected to the root of the cantilever beam structure (135) is provided with Fastening points, so that the fastening area (132) is fixedly connected to the casing at the fastening points.
The pressure touch panel (100) according to any one of claims 12 to 16, characterized in that, in the same direction, from the outermost edge of the reinforcement area (131) to the protective panel (160) The distance projected on the outer edge of the plane where the support plate (130) is located is greater than the gap between the outermost edge of the reinforcing area (131) and the inner edge of the fastening area (132).
The pressure touch panel (100) according to any one of claims 7 to 11, characterized in that the extension length of the cantilever beam structure (135) is 12.95mm, and the width of the cantilever beam structure (135) is 8.5mm.
An electronic device (10), characterized by comprising a casing (200) and the pressure touch panel (100) as claimed in any one of claims 1 to 19, the casing (200) and the The fastening area (132) secures the connection.