WO2024000172A1 - 触控板和电子设备 - Google Patents

触控板和电子设备 Download PDF

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Publication number
WO2024000172A1
WO2024000172A1 PCT/CN2022/101972 CN2022101972W WO2024000172A1 WO 2024000172 A1 WO2024000172 A1 WO 2024000172A1 CN 2022101972 W CN2022101972 W CN 2022101972W WO 2024000172 A1 WO2024000172 A1 WO 2024000172A1
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WO
WIPO (PCT)
Prior art keywords
touch panel
flexible connecting
area
fastening area
cantilever beam
Prior art date
Application number
PCT/CN2022/101972
Other languages
English (en)
French (fr)
Inventor
郭益平
刘凯
王朋
张�荣
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2022/101972 priority Critical patent/WO2024000172A1/zh
Publication of WO2024000172A1 publication Critical patent/WO2024000172A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • Embodiments of the present application relate to the field of electronic technology, and in particular, to a touch panel and electronic equipment.
  • the tactile feedback component needs to be placed at the bottom center 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.
  • the present application provides a touch panel and electronic device, which is helpful to solve the problem of inconsistent vibrations generated after the tactile feedback component is biased.
  • a touch panel which includes: a touch panel; a tactile feedback component disposed below the touch panel for providing vibration feedback to the user; and a support plate disposed on the touch panel.
  • the support plate includes a reinforcing area, a fastening area and four flexible connecting arms.
  • the reinforcing area and the fastening area are connected through the flexible connecting arms.
  • the reinforcing area is connected to the
  • the touch panel is fixedly connected.
  • the fastening area is used to be fixedly connected to the casing of the electronic device.
  • the four flexible connecting arms are symmetrically arranged on the support. At the four corners of the board, the four flexible connecting arms are used to balance the vibration of the tactile feedback component.
  • the reinforcing area and fastening area of the support plate are integrated through flexible connecting arms, which can simplify the assembly process of the touch panel. And when the tactile feedback component vibrates, the vibration can be transmitted through the relative displacement of the flexible connecting arms. Since the four flexible connecting arms are symmetrically arranged at the four corners of the support plate, the vibration generated by the tactile feedback component can be evenly distributed. By touching various positions of the panel, the problem of vibration inconsistency when the tactile feedback component is offset can be solved and the user's vibration experience can be improved.
  • arranging the flexible connecting arms at the corners of the support plate can increase the area of the reinforcement area as much as possible, thereby solving the problem of vibration inconsistency when the tactile feedback component is offset without affecting the rigidity of the touch panel.
  • the aspect ratio of the flexible connecting arm is greater than or equal to 10:1.
  • the width of the flexible connecting arm is greater than or equal to 2 mm.
  • width of the flexible connecting arm 133 can enhance the connection strength between the flexible connecting arm 133 and the reinforcing area 131 or the fastening area 132, making the connection less likely to break.
  • the projection area of the fastening area onto the plane where the touch panel is located surrounds the touch panel, and the four flexible connecting arms are connected together through the fastening area.
  • the projection area of the fastening area onto the plane where the touch panel is located is located within the touch panel, and the fastening area surrounds the reinforcing area, and the four flexible connecting arms pass through the fastening area. Solid areas are connected together.
  • the projection area of the fastening area onto the plane where the touch panel is located is located within the touch panel, and the fastening area is provided outside two opposite sides of the reinforcement area, and the Among the four flexible connecting arms, the outer two flexible connecting arms located on the same side of the reinforcing area are connected together through the fastening area.
  • the projection area of the fastening area onto the plane where the touch panel is located is set outside two opposite sides of the touch panel, and one of the four flexible connecting arms is located at the same location as the touch panel. The two flexible connecting arms on one side are connected together through the fastening area.
  • the projection area of the fastening area onto the plane where the touch panel is located is located at four corners of the touch panel, and the four flexible connecting arms are independent of each other.
  • the touch panel further includes: a pressure sensor disposed below the touch panel for converting the deformation of the pressure sensor into an electrical signal when the touch panel is under pressure; the tactile sensor The feedback component is used to provide tactile feedback to the user based on the electrical signal.
  • the tactile feedback component can drive the touch panel to vibrate together according to the electrical signal detected by the pressure sensor, and feedback the vibration to the user. Vibration feedback allows users to determine whether their press operation is effective, thus minimizing repeated gestures.
  • 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 touch panel is subjected to pressure, the pressure sensor is driven to deform together.
  • 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.
  • the support plate is provided with four cantilever beam structures, and the four cantilever beam structures are symmetrically distributed at four corners of the support plate.
  • a cantilever beam structure is provided at each of the four corners of the support plate, 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.
  • the cantilever beam structure extends in the second direction from the fastening area close to the reinforcing area, and the extension direction of the flexible connecting arm is consistent with the extension direction of the cantilever beam structure.
  • the flexible connecting arm is a bending structure, the first fixed end of the bending structure is connected to the reinforcing area, the second fixed end of the bending structure is connected to the fastening area, and the The second direction is the long side direction of the touch panel.
  • the cantilever beam structure extends in a first direction from the fastening area away from the reinforcing area, and the extension direction of the flexible connecting arm is perpendicular to the extension direction of the cantilever beam structure.
  • the flexible connecting arm is a bending structure, the first fixed end of the bending structure is connected to the root of the cantilever beam structure, and the second fixed end of the bending structure is connected to the reinforcement area, so The fastening area is located at the connection between the first fixed end and the root, and the first direction is the short side direction of the touch panel.
  • the touch panel further includes: a damping component disposed between the touch panel and the cantilever beam structure, configured to cause the cantilever beam structure to deform when the touch panel is subjected to pressure.
  • the cantilever beam structure by disposing a damping component between the cantilever beam structure and the touch panel, the cantilever beam structure can be deformed, thereby causing the pressure sensor to deform, so that the pressure sensor can detect pressure.
  • the damping component is a silicone pad.
  • the tactile feedback component is a linear motor.
  • an electronic device including a casing and a touch panel in the first aspect and any implementation of the first aspect.
  • the casing is used to be fixedly connected to the fastening area.
  • the casing is used for locking connection with the fastening area.
  • Figure 1 shows a schematic exploded view of the touch panel according to the embodiment of the present application.
  • FIG. 2 shows a schematic enlargement of part A in FIG. 1 .
  • Figure 3 shows a schematic top view of the support plate according to the embodiment of the present application.
  • Figure 4 shows another schematic top view of the support plate according to the embodiment of the present application.
  • Figure 5 shows another schematic top view of the support plate according to the embodiment of the present application.
  • Figure 6 shows yet another schematic top view of the support plate according to the embodiment of the present application.
  • Figure 7 shows another schematic top view of the support plate according to the embodiment of the present application.
  • FIG. 8 shows a schematic assembly diagram of the touch panel according to the embodiment of the present application.
  • FIG. 9 shows a schematic enlarged view of part B in FIG. 8 .
  • FIG. 10 shows another schematic exploded view of the touch panel according to the embodiment of the present application.
  • 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.
  • 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.
  • a pressure touchpad eliminates the physical buttons of a conventional touchpad and adds pressure sensing and vibration feedback functions.
  • the pressure touch panel of electronic equipment usually consists of a touch panel, a pressure sensor, a tactile feedback component, a metal reinforcing plate, a metal elastic bracket, etc.
  • the tactile feedback component needs to be placed in the center of the bottom 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.
  • 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.
  • the tactile feedback components are placed Position offset.
  • 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.
  • embodiments of the present application provide a touch panel, which is helpful to solve the problem of inconsistent vibration after the tactile feedback component is biased.
  • 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).
  • ATMs bank automated teller machines
  • the embodiments of the present application are not limited to this.
  • FIG. 1 shows a schematic exploded view of the touch panel 100 according to the embodiment of the present application.
  • the touch panel in Figure 1 is located below the support plate.
  • the "upper” and “lower” described below are the positional relationships from the user's perspective, that is, for For users, the touch panel is located at the top of the trackpad.
  • the touch panel 100 includes:
  • the tactile feedback component 120 is provided below the touch panel 110 and is used to provide vibration feedback to the user;
  • the support plate 130 is provided below the touch panel 110.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133.
  • the reinforcing area 131 and the fastening area 132 are connected through flexible connecting arms.
  • 133 connection the reinforcing area 131 is fixedly connected to the touch panel 110, the fastening area 132 is used to be fixedly connected to the casing of the electronic device, there is a gap between the flexible connecting arm 133 and the touch panel 110, the four The flexible connecting arm 133 is used to balance the vibration of the tactile feedback component 120 .
  • the four flexible connecting arms 133 may respectively include a flexible connecting arm 1331 , a flexible connecting arm 1332 , a flexible connecting arm 1333 and a flexible connecting arm 1334 .
  • the four flexible connecting arms 133 are symmetrically arranged at the four corners of the support plate 130 . That is, the flexible connecting arm 1331 and the flexible connecting arm 1332, and the flexible connecting arm 1333 and the flexible connecting arm 1334 are axially symmetrical in the first direction X.
  • the flexible connecting arm 1331 and the flexible connecting arm 1334, and the flexible connecting arm 1332 and the flexible connecting arm 1333 are axially symmetrical in the second direction Y.
  • the tactile feedback component 120 in the embodiment of the present application can provide vibration feedback to the user based on the pressure signal detected by the pressure sensor.
  • the tactile feedback component 120 can also provide vibration feedback to the user based on other signals, for example, based on touch. Touch signal detected by the panel.
  • touch signal detected by the panel for example, based on touch. Touch signal detected by the panel.
  • the support plate 130 is used to support the touch panel 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 for supporting the touch panel 110. That is to say, the reinforcing area 131 and the touch panel
  • the lower surface of 110 is fixedly connected.
  • the reinforcing area 131 may be bonded to the lower surface of the touch panel 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.
  • 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 is a gap between the flexible connecting arm 133 and the lower surface of the touch panel 110 . When the tactile feedback component 120 vibrates, the flexible connecting arm 133 can vibrate up and down in the gap, thereby balancing the vibration of the tactile feedback component 120 .
  • the reinforcing area 131 and the fastening area 132 of the support plate 130 are integrally connected through the flexible connecting arm 133, which can simplify the assembly process of the touch panel 100.
  • the vibration can be transmitted through the relative displacement of the flexible connecting arms 133. Since the four flexible connecting arms 133 are symmetrically arranged at the four corners of the support plate 130, the tactile feedback component 120 can generate The vibrations are evenly distributed in various positions of the touch panel, which can solve the problem of inconsistent vibrations when the tactile feedback component 120 is biased and improve the user's vibration experience.
  • arranging the flexible connecting arms 133 at the corners of the support plate 130 can increase the area of the reinforcement area 131 as much as possible, thereby solving the problem when the tactile feedback component 120 is biased without affecting the rigidity of the touch panel 100 . Vibration inconsistency issue.
  • the length-to-width ratio of the flexible connecting arm is greater than or equal to 10:1.
  • Figure 2 is a schematic enlarged view of part A in Figure 1.
  • the flexible connecting arm 133 includes a main body part 1337 , a first connecting part 1335 and a second connecting part 1336 .
  • Two ends of the main body 1337 are respectively connected to one end of the first connecting part 1335 and one end of the second connecting part 1336.
  • the other end of the first connecting part 1335 is connected to the reinforcing area 131.
  • the other end of the second connecting part 1336 Connected to fastening area 132.
  • the length of the flexible connecting arm 133 referred to in this application is the length of the straightened main body part 1337, and the lengths of the first connecting part 1335 and the second connecting part 1336 are negligible, that is, from arrow 1 to arrow in Figure 2
  • the width of the flexible connecting arm 133 is the width of the main body 1337, that is, the length of the dotted line from arrow 3 to arrow 4 in Figure 2.
  • the width of the flexible connecting arm is greater than or equal to 2 mm.
  • width of the flexible connecting arm 133 can enhance the connection strength between the flexible connecting arm 133 and the reinforcing area 131 or the fastening area 132, making the connection less likely to break.
  • FIG. 3 shows a schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • Four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130.
  • the fastening area 132 surrounds the entire reinforcing area 131, and there is a through hole 135 between the reinforcing area 131 and the fastening area 132.
  • the flexible The connecting arm 133 is located in the through hole 135 and connects the reinforcing area 131 and the fastening area 132 . As shown in FIG.
  • the projection area of the fastening area 132 onto the plane where the touch panel is located surrounds the touch panel (not shown in the figure, located directly above the area surrounded by the dotted line in the figure), and the four flexible connecting arms 133 are connected together via this fastening area 132 .
  • FIG. 4 shows another schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • Four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130.
  • the fastening area 132 surrounds the entire reinforcing area 131, and there is a through hole 135 between the reinforcing area 131 and the fastening area 132.
  • the flexible The connecting arm 133 is located in the through hole 135 and connects the reinforcing area 131 and the fastening area 132 . As shown in FIG.
  • the projection area of the fastening area 132 onto the plane of the touch panel is located within the touch panel (not shown in the figure, located directly above the support plate 130 and covering the entire support plate 130 ), and the The fastening area 132 surrounds the reinforcing area 131, and the four flexible connecting arms 133 are connected together through the fastening area 132.
  • FIG. 5 shows another schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • the four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130 .
  • FIG. 5 shows another schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • the four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130 .
  • the projection area of the fastening area 132 onto the plane of the touch panel is located within the touch panel (not shown in the figure, located directly above the support plate 130 and covering the entire support plate 130 ), and the The fastening area 132 is provided outside the two opposite sides of the reinforcement area 131 , for example, is provided outside the two sides of the reinforcement area 131 extending along the first direction X.
  • the four flexible connecting arms 133 two flexible connecting arms 133 located outside the same side of the reinforcing area are connected together through the fastening area 132 .
  • the flexible connecting arm 1331 and the flexible connecting arm 1332 in FIG. 5 are connected together through the fastening area 132
  • the flexible connecting arm 1333 and the flexible connecting arm 1334 are connected together through the fastening area 132.
  • FIG. 6 shows another schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • the four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130 .
  • the projection area of the fastening area 132 onto the plane where the touch panel is located is set on two opposite sides of the touch panel (not shown in the figure, located directly above the area surrounded by the dotted line in the figure).
  • the outer sides are, for example, provided on the outer sides of the two sides extending along the first direction X of the touch panel.
  • two flexible connecting arms 133 located on the outside of the same side of the touch panel are connected together through the fastening area 132 .
  • the flexible connecting arm 1331 and the flexible connecting arm 1332 in FIG. 6 are connected together through the fastening area 132, and the flexible connecting arm 1333 and the flexible connecting arm 1334 are connected together through the fastening area 132.
  • FIG. 7 shows another schematic top view of the support plate 130 provided by the embodiment of the present application.
  • the support plate 130 includes a reinforcing area 131, a fastening area 132 and four flexible connecting arms 133 (flexible connecting arm 1331, flexible connecting arm 1332, flexible connecting arm 1333 and flexible connecting arm 1334).
  • the four flexible connecting arms 133 are symmetrically distributed at the four corners of the support plate 130 .
  • the projection area of the fastening area 132 onto the plane where the touch panel is located is located at four corners of the touch panel, and the four flexible connecting arms 133 are independent of each other.
  • the support plate 130 is provided with four flexible connecting arms 133, those skilled in the art understand that the embodiments of the present application do not limit the number of the flexible connecting arms 133.
  • the support plate 130 includes six flexible connecting arms, and the six flexible connecting arms can be symmetrically arranged at four corners of the support plate 130 and at the center of two sides of the support plate 130 extending along the first direction X. .
  • the flexible connecting arm 133 and the touch panel 110 are in contact with each other.
  • the gap H forms a deformation space of the flexible connecting arm 133 on the Z axis. That is to say, when the tactile feedback component 120 vibrates, the flexible connecting arm 133 is driven to relatively displace between the gaps H along the third direction Z.
  • the gap H is also the vertical distance between the bonding surface of the reinforcing area 131 and the surface of the fastening area 132 .
  • the size range of the gap H may be 0.2 mm ⁇ 1 mm. Further, the size range of the gap H may be 0.6 mm ⁇ 0.7 mm, which will provide a better vibration effect.
  • FIG. 10 shows another schematic exploded view of the touch panel 100 according to the embodiment of the present application.
  • the touch panel 100 further includes: a pressure sensor 141 , which is provided below the touch panel 110 and is used to detect the pressure when the touch panel 110 is under pressure.
  • the deformation of the pressure sensor 141 is converted into an electrical signal; the tactile feedback component 120 is used to provide tactile feedback to the user based on the electrical signal.
  • the tactile feedback component 120 can drive the touch panel 110 to vibrate together according to the electrical signal detected by the pressure sensor 141, and feedback the vibration to the user. Vibration feedback allows users to determine whether their press operation is effective, thus minimizing repeated gestures.
  • the tactile feedback component 120 can drive the touch panel 110 to vibrate together when the electrical signal detected by the pressure sensor 141 is greater than the first threshold.
  • the first threshold is a specified threshold, which may be obtained through experience.
  • the first threshold may refer to a critical value of the pressing force at which the user can perceive vibration, and the first threshold may be greater than 0.
  • the electronic device can also store multiple critical values of pressing force, and the user can select one from them according to usage habits.
  • the electronic device stores a critical value for light pressing, a critical value for medium pressing, and a critical value for heavy pressing. The user can select a critical value from among them based on the pressing force he is accustomed to.
  • the pressure sensor 141 can be electrically connected to the touch panel 110 through a flexible printed circuit (FPC) 142 of the pressure sensor. That is to say, the electrical signal detected by the pressure sensor 141 can be transmitted to the circuit board of the touch panel 110 through the FPC 142 of the pressure sensor, and then the circuit board of the touch panel 110 can drive the tactile feedback component 120 to generate vibration.
  • FPC flexible printed circuit
  • the support plate 130 is also provided with a cantilever beam structure 134, which can be used to support the pressure sensor 141, and in When the touch panel 110 is subjected to pressure, the pressure sensor 141 is deformed together.
  • the cantilever beam structure 134 refers to the reinforcing area 131 relative to the support plate 130 , which is suspended below the touch panel 110 . That is to say, there is a gap between the cantilever beam structure 134 and the touch panel 110 .
  • the lower surface of the cantilever beam structure 134 is flush with the lower surface of the reinforcement area 131 , and the thickness of the cantilever beam structure 134 is smaller than the thickness of the reinforcement area 131 , so that the cantilever beam structure 134 is in contact with the touch panel.
  • the cantilever beam structure 134 is used to support the pressure sensor 141 , which can be understood as the pressure sensor 141 is fixed on the upper surface of the cantilever beam structure 134 .
  • the pressure sensor 141 may also be fixed on the lower surface of the cantilever beam structure 134 . It should be noted that the lower surface here refers to the surface far away from the touch panel 110 , and the upper surface here refers to the surface close to the touch panel 110 .
  • the cantilever beam structure 134 used to support the pressure sensor 141 and the reinforcing plate used to support the touch panel 110 are integrally formed. There is no need to provide an additional elastic bracket for supporting the pressure sensor 141, which reduces the need for touch control. The number of components of the board 100 is reduced, thereby simplifying the assembly process and saving costs.
  • the support plate 130 is provided with four cantilever beam structures 134 , including a cantilever beam structure 1341 , a cantilever beam structure 1342 , a cantilever beam structure 1343 and a cantilever beam structure 1344 .
  • the cantilever beam structures 134 are symmetrically distributed at the four corners of the support plate 130 .
  • the four cantilever beam structures 134 and the four flexible connecting arms 133 may be arranged in pairs at four corners of the support plate 130 .
  • a cantilever beam structure 134 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 141 at the four corners of the support plate 130 through the cantilever beam structure 134 can also improve the uniformity of pressure detection.
  • the number of cantilever beam structures 134 is not limited in this embodiment of the present application.
  • the support plate 130 may be provided with six cantilever beam structures, and the six cantilever beam structures may be symmetrically arranged at the four corners of the support plate 130 and at the center of two sides of the support plate 130 extending along the first direction X. Location.
  • the number of cantilever beam structures 134 and the number of flexible connecting arms 133 in the embodiment of the present application may be the same or different.
  • the flexible connecting arm 133 may be a bent structure.
  • the cantilever beam structure 134 can be extended from the fastening area 132 of the support plate 130 , and is not directly connected to the reinforcing area 131 , but indirectly connected through the flexible connecting arm 133 .
  • the cantilever beam structure 134 extends from the fastening area 132 close to the reinforcing area 131 along the second direction Y, and the extension direction of the flexible connecting arm 133 is consistent with the cantilever beam structure 134
  • the extension direction of the flexible connecting arm 133 is a bending structure, and the first fixed end of the bending structure is connected to the reinforcing area 131 , and the second fixed end of the bending structure is connected to the fastening area 132 .
  • the flexible connecting arm 1333 has a bending structure.
  • the first fixed end 13331 of the bending structure is connected to the reinforcing area 131, and the second fixed end of the bending structure End 13332 is connected to fastening area 132.
  • the cantilever beam structure 134 extends from the fastening area 132 away from the reinforcing area 131 along the first direction
  • the extension direction is vertical
  • the flexible connecting arm 133 is a bent structure.
  • the first fixed end of the bent structure is connected to the root of the cantilever beam structure 134, and the second fixed end of the bent structure is connected to the reinforcing area 131.
  • the fastening area 132 is located at the connection between the first fixed end and the root.
  • the flexible connecting arm 1334 is a bending structure.
  • the first fixed end 13341 of the bending structure is connected to the root of the cantilever beam structure 1344, and the second fixed end of the bending structure is connected to the root of the cantilever beam structure 1344.
  • Terminal 13342 is connected to reinforcement area 131.
  • the fastening area 132 is located at the connection between the first fixed end 13341 and the root of the cantilever beam structure 1344.
  • the extension length of the flexible connecting arm 133 may not be greater than the extension length of the cantilever beam structure 134 , so that the flexible connecting arm 133 occupies as little area as possible in the reinforcing area 131 of the support plate 130 and improves the support plate 130 reinforcement area 131, thereby improving the stiffness of the touch panel 100.
  • the cantilever beam structure 134 can also be extended from the reinforcing area 131 of the support plate 130 , and is not directly connected to the fastening area 132 , but indirectly through the flexible connecting arm 133 connect.
  • the upper surface of the cantilever beam structure 134 can be flush with the upper surface of the flexible connecting arm 133. That is to say, the thickness of the cantilever beam structure 134 is equal to The flexible connecting arms 133 have the same thickness. That is to say, the gap between the cantilever beam structure 134 and the touch panel 110 is the same as the gap between the flexible connecting arm 133 and the touch panel 110 . In other examples, the thickness of the cantilever beam structure 134 is different from the thickness of the flexible connecting arm 133. Similarly, the lower surface here is the surface away from the touch panel 110, and the upper surface here is close to the touch panel 110. surface.
  • the touch panel 100 further includes: a damping component 150 , which is disposed between the touch panel 110 and the cantilever beam structure 134 to withstand pressure on the touch panel 110 When the cantilever beam structure 134 is deformed.
  • a damping component 150 which is disposed between the touch panel 110 and the cantilever beam structure 134 to withstand pressure on the touch panel 110 When the cantilever beam structure 134 is deformed.
  • the damping component 150 may be disposed on the upper surface of the cantilever beam structure 134 side by side with the pressure sensor 141 . And the damping component 150 can fill the gap between the upper surface of the cantilever beam structure 134 and the lower surface of the touch panel 110 . When a finger presses the touch panel 110, the damping component 150 can cause the cantilever beam structure 134 to deform, thereby causing the pressure sensor 141 to deform.
  • the cantilever beam structure 134 can be deformed, thereby driving the pressure sensor 141 to deform, so that the pressure sensor can detect pressure.
  • the damping component 150 may be a silicone composite material, such as a silicone pad.
  • the damping component 150 may be a spring.
  • the damping component 150 can not only be used to drive the cantilever beam structure 134 to deform, but can also be used to absorb aftershocks generated by the tactile feedback component 120 .
  • the hardness of the damping component 150 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 touch panel 110 is under pressure, affecting the accuracy of pressure detection. Spend.
  • the thickness of the damping component 150 can be set between 0.5 mm and 0.8 mm, which can avoid insufficient strain space of the cantilever beam structure 134 caused by too small a thickness of the damping component 150 , thereby causing the cantilever beam structure 134 to support The pressure sensor cannot detect pressure effectively. It can also avoid the problem of inconsistent vibration of the touch panel caused by excessive thickness of the damping component 150 .
  • the tactile feedback component 120 may be a linear motor, for example, a linear motor for X- or Y-axis vibration.
  • the tactile feedback component 120 may also be a piezoelectric ceramic sheet or the like.
  • the tactile feedback component 120 may also be other suitable actuators.
  • Tactile feedback component 120 may be adhered below touch panel 110 , for example, to a lower surface of touch panel 110 .
  • the support plate 130 may be provided with an avoidance area 136 for avoiding the tactile feedback component 120 .
  • the extension direction of the flexible connecting arm 133 forms an angle with the vibration direction of the tactile feedback component 120 .
  • the vibration direction of the tactile feedback component 120 is the first direction
  • the vibration direction of component 120 is at right angles.
  • the extension direction of the flexible connecting arm 133 is at an acute angle with the vibration direction of the tactile feedback component 120 .
  • the embodiment of the present application does not limit the angle between the extension direction of the flexible connecting arm 133 and the vibration direction of the tactile feedback component 120.
  • the vibration direction of the tactile feedback component 120 in Figures 3 to 7 is the third In the direction Y
  • the extension direction of the flexible connecting arm 133 is parallel to the vibration direction of the tactile feedback component 120 .
  • the touch panel 110 can include: a protective panel 111, a printed circuit board (Printed Circuit Board, PCB) 112 and glue 113; wherein the protective panel 111 and the PCB 112 can be glued together through the glue 113. Connected together.
  • a protective panel 111 a printed circuit board (Printed Circuit Board, PCB) 112 and glue 113; wherein the protective panel 111 and the PCB 112 can be glued together through the glue 113. Connected together.
  • PCB printed circuit Board
  • the protective panel 111 can be used for user touch and pressure, or can be used as an exterior decoration, generally using glass or polyester film (mylar).
  • the PCB 112 can be used to process electrical signals obtained by various sensors in the touch panel 100.
  • the PCB 112 is used to output a driving signal to the tactile feedback component 120 according to the pressure signal detected by the pressure sensor 141.
  • the PCB 112 is also provided with a component area 1120.
  • the support plate 130 is provided with an avoidance area 137 to avoid the component area 1120.
  • the pressure sensor 141 in the embodiment of the present application may be a piezoresistive pressure sensor or other types of pressure sensors.
  • the support plate 130 can be bonded to the touch panel 110 through glue 160 .
  • the reinforcing area 131 of the support plate 130 and the touch panel 110 are bonded together.
  • the glue 113 and the glue 160 in the embodiment of the present application can be double-sided tape, flexible glue or glue pads.
  • the embodiment of the present application also provides an electronic device, including a casing and the touch panel in the various embodiments described above, and the casing is fixedly connected to the above-mentioned fastening area 132 .
  • the case is used to carry the internal components of electronic equipment, such as battery components, motherboards, etc.
  • the casing is lockably connected to the fastening area 132 .
  • the fastening area 132 is provided with fixing holes, and the corresponding position of the assembly surface of the casing is provided with mounting holes.
  • the support plate 130 can be installed on the machine of the electronic device through fasteners, such as fastening nuts. on the case, thereby fixing the touch panel 100 on the case of the electronic device.
  • the casing 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 .
  • a suitable casing can be designed according to the touch panel 100 provided in the above various embodiments.
  • the casing can be provided with a window, and the size of the window can be the same as the size of the touch panel 110.
  • the upper assembly surface is arranged around the window.

Abstract

本申请提供了一种触控板和电子设备，该触控板包括：触摸面板；触觉反馈部件，设置于该触摸面板的下方，用于向用户提供震动反馈；支撑板，设置于该触摸面板的下方，该支撑板包括补强区、紧固区和四个柔性连接臂，该补强区与该紧固区通过该柔性连接臂连接，该补强区与该触摸面板固定连接，该紧固区用于与电子设备的机壳固定连接，该柔性连接臂与该触摸面板之间具有间隙，该四个柔性连接臂对称地设置在该支撑板的四个角落，该四个柔性连接臂用于平衡该触觉反馈部件的震动。本申请的触控板和电子设备，有利于解决触觉反馈部件偏置后所产生的震动不一致问题。

Description

触控板和电子设备 技术领域
本申请实施例涉及电子技术领域，尤其涉及一种触控板和电子设备。
背景技术
对于具有触觉反馈功能的触控板来说，触觉反馈部件需要放置在触摸面板的下方正中心位置，才能确保实际体验时，手指接触的触摸面板的任一区域都能感受到相同的震动体验。
但在实际整机堆叠设计过程中，触控板正下方多为电池组件、主板等部件。电池电芯在充放电过程中会鼓起，整机堆叠亦无过多安全空间，避免触觉反馈部件的金属客体接触到电芯，导致刺穿引起安全事故，通常情况下会将触觉反馈部件摆放位置偏置。
触觉反馈部件偏置后，则产生了震动不一致的问题。
发明内容
有鉴于此，本申请提供了一种触控板和电子设备，有利于解决触觉反馈部件偏置后所产生的震动不一致问题。
第一方面，提供了一种触控板，该触控板包括：触摸面板；触觉反馈部件，设置于所述触摸面板的下方，用于向用户提供震动反馈；支撑板，设置于所述触摸面板的下方，所述支撑板包括补强区、紧固区和四个柔性连接臂，所述补强区与所述紧固区通过所述柔性连接臂连接，所述补强区与所述触摸面板固定连接，所述紧固区用于与电子设备的机壳固定连接，所述柔性连接臂与所述触摸面板之间具有间隙，所述四个柔性连接臂对称地设置在所述支撑板的四个角落，所述四个柔性连接臂用于平衡所述触觉反馈部件的震动。
支撑板的补强区和紧固区通过柔性连接臂一体化连接，可以简化触控板的组装工艺。并且可以在触觉反馈部件震动时，通过柔性连接臂的相对位移来传递震动，由于四个柔性连接臂对称地布置在支撑板的四个角落，能够使得触觉反馈部件所产生的震动均匀地分布在触摸面板的各个位置，从而可以解决触觉反馈部件偏置时的震动不一致问题，提高用户的震动体验。
另外，将柔性连接臂设置在支撑板的角落，可以尽可能地增大补强区的 面积，从而在不影响触控板刚性的情况下，解决触觉反馈部件偏置时的震动不一致问题。
在一种可能的实现方式中，所述柔性连接臂的长宽比大于或等于10:1。
将该柔性连接臂的长宽比设置为大于或等于10:1，能够有效地缩短触觉反馈部件的震动拖尾时间(或刹车时间)，使得震感体验越清脆。
在一种可能的实现方式中，所述柔性连接臂的宽度大于或等于2mm。
将该柔性连接臂133的宽度设置为大于或等于2mm，可以增强柔性连接臂133与补强区131或者紧固区132之间的连接强度，使得连接处不易折断。
在一种可能的实现方式中，该紧固区投影到该触摸面板所在平面上的投影区域包围该触摸面板，该四个柔性连接臂通过该紧固区连接在一起。
在一种可能的实现方式中，该紧固区投影到该触摸面板所在平面上的投影区域位于该触摸面板内，且该紧固区包围该补强区，该四个柔性连接臂通过该紧固区连接在一起。
在一种可能的实现方式中，该紧固区投影到该触摸面板所在平面上的投影区域位于该触摸面板内，且该紧固区设置在该补强区相对的两条边的外侧，该四个柔性连接臂中位于该补强区同一边的外侧两个柔性连接臂通过该紧固区连接在一起。
在一种可能的实现方式中，该紧固区投影到该触摸面板所在平面上的投影区域设置在该触摸面板相对的两条边的外侧，且该四个柔性连接臂中位于该触摸面板同一边的外侧的两个柔性连接臂通过该紧固区连接在一起。
在一种可能的实现方式中，该紧固区投影到该触摸面板所在平面上的投影区域位于该触摸面板的四个角落，该四个柔性连接臂之间相互独立。
在一种可能的实现方式中，该触控板还包括：压力传感器，设置于该触摸面板的下方，用于在该触摸面板承受压力时，将该压力传感器的形变转换为电信号；该触觉反馈部件用于根据该电信号向用户提供触觉反馈。
在该实施例中，触觉反馈部件可以根据压力传感器检测到的电信号带动触摸面板一起震动，将震动反馈给用户。震动反馈可以使得用户确定其按压操作是否有效，从而可以最大限度地减少重复手势。
在一种可能的实现方式中，该支撑板还设置有悬臂梁结构，该悬臂梁结构用于支撑该压力传感器，并且在该触摸面板承受压力时，带动该压力传感 器一起发生形变。
在该实施例中，将用于支撑压力传感器的悬臂梁结构与用于支撑触摸面板的补强板一体成型，不需要额外设置用于支撑压力传感器的弹性支架，减少了触控板的组件数量，进而简化了组装工序，节省了成本。
在一种可能的实现方式中，该支撑板设置有四个悬臂梁结构，该四个悬臂梁结构对称地分布在该支撑板的四个角落。
在该实施例中，在支撑板的四个角落各设置一个悬臂梁结构，可以增大触控板的结构稳定性。其次，将压力传感器通过悬臂梁结构分布在支撑板的四个角落，还可以提高压力检测的均匀性。
在一种可能的实现方式中，所述悬臂梁结构沿第二方向从所述紧固区靠近所述补强区延伸，且所述柔性连接臂的延伸方向与所述悬臂梁结构的延伸方向相同，所述柔性连接臂为弯折结构，所述弯折结构的第一固定端连接至所述补强区，所述弯折结构的第二固定端连接至所述紧固区，所述第二方向为所述触控板的长边方向。
在一种可能的实现方式中，所述悬臂梁结构沿第一方向从所述紧固区远离所述补强区延伸，所述柔性连接臂的延伸方向与所述悬臂梁结构的延伸方向垂直，所述柔性连接臂为弯折结构，所述弯折结构的第一固定端连接至所述悬臂梁结构的根部，所述弯折结构的第二固定端连接至所述补强区，所述紧固区位于所述第一固定端与所述根部的连接处，所述第一方向为所述触控板的短边方向。
在一种可能的实现方式中，该触控板还包括：阻尼部件，设置于该触摸面板与该悬臂梁结构之间，用于在该触摸面板承受压力时使得该悬臂梁结构发生形变。
在该实施例中，通过在悬臂梁结构与触摸面板之间设置阻尼部件，可以使得悬臂梁结构发生形变，从而可以带动压力传感器发生形变，以使得压力传感器进行压力检测。
在一种可能的实现方式中，该阻尼部件为硅胶垫。
在一种可能的实现方式中，该触觉反馈部件为线性马达。
第二方面，提供了一种电子设备，包括机壳和第一方面以及第一方面任一种实现方式中的触控板，该机壳用于与该紧固区固定连接。
在一种可能的实现方式中，该机壳用于与该紧固区锁附连接。
附图说明
图1示出了本申请实施例的触控板的一种示意性爆炸图。
图2示出了图1中A部分的示意性放大图。
图3示出了本申请实施例的支撑板的一种示意性俯视图。
图4示出了本申请实施例的支撑板的另一种示意性俯视图。
图5示出了本申请实施例的支撑板的又一种示意性俯视图。
图6示出了本申请实施例的支撑板的再一种示意性俯视图。
图7示出了本申请实施例的支撑板的其他示意性俯视图。
图8示出了本申请实施例的触控板的一种示意性装配图。
图9示出了图8中B部分的示意性放大图。
图10示出了本申请实施例的触控板的另一示意性爆炸图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
触控板是一种应用于电子设备的控制屏幕光标的输入装置。触控板通过检测用户手指在面板区域操作时的微小电容变化，得到高分辨率手指坐标等触控信息，以精确控制屏幕光标进行移动、点击。通常触控板背面也配置了单按键，通过检测按键的行为实现了传统的鼠标左键和右键的功能。
为了提升触控板的操作便捷性，压力触控板渐渐成为一种新趋势。压力触控板是指取消了常规触控板的物理按键，并增加了压力感应和震动反馈功能。
电子设备的压力触控板通常由触摸面板、压力传感器、触觉反馈部件、金属补强板、金属弹性支架等组成。其中触觉反馈部件需放置在触摸面板下方正中心位置，才能确保实际体验时，手指接触的触摸面板的任一区域都能感受到相同的震动体验。
但实际整机堆叠设计过程中，压力触控板正下方多为电池组件、主板。电池电芯充放电过程中会鼓起，整机堆叠亦无过多安全空间，避免触觉反馈部件的金属客体接触到电芯，导致刺穿引起安全事故，通常情况下会将触觉反馈部件摆放位置偏置。例如，触觉反馈部件可摆放在电池封装的塑胶框与触控板之间、也可摆放在主板与触控板之间。
触觉反馈部件偏置后，则随之产生震动不一致的问题。
有鉴于此，本申请实施例提供了一种触控板，有利于解决触觉反馈部件偏置后震动不一致的问题。
应理解，本申请实施例的技术方案可以应用于各种电子设备。
例如，智能手机、笔记本电脑、平板电脑、游戏设备等便携式或移动计算设备，以及电子数据库、汽车、银行自动柜员机(Automated Teller Machine，ATM)等其他电子设备。但本申请实施例对此并不限定。
图1示出了本申请实施例的触控板100的示意性爆炸图。为了便于体现支撑板的细节，图1中的触摸面板位于支撑板的下方，但需要说明的是，下文中描述的“上”和“下”则是站在用户角度体现的位置关系，即对于用户而言，触摸面板位于触控板的最上方。具体地，如图1所示，该触控板100包括：
触摸面板110；
触觉反馈部件120，设置于该触摸面板110的下方，用于向用户提供震动反馈；
支撑板130，设置于该触摸面板110的下方，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133，该补强区131与该紧固区132通过柔性连接臂133连接，该补强区131与该触摸面板110固定连接，该紧固区132用于与电子设备的机壳固定连接，该柔性连接臂133与该触摸面板110之间具有间隙，该四个柔性连接臂133用于平衡该触觉反馈部件120的震动。
如图1所示，该四个柔性连接臂133可以分别包括柔性连接臂1331、柔性连接臂1332、柔性连接臂1333以及柔性连接臂1334。该四个柔性连接臂133对称地设置在支撑板130的四个角落。即，该柔性连接臂1331与该柔性连接臂1332、该柔性连接臂1333与该柔性连接臂1334在第一方向X上轴对称。该柔性连接臂1331与该柔性连接臂1334、该柔性连接臂1332与该柔性连接臂1333在第二方向Y上轴对称。
需要说明的是，本申请实施例中的触觉反馈部件120可以是基于压力传感器检测的压力信号向用户提供震动反馈，该触觉反馈部件120也可以基于其他信号向用户提供震动反馈，例如，基于触摸面板检测到的触摸信号。虽然下文多以压力感应与触觉反馈结合的实施例描述，但应理解，本申请实施例对触觉反馈部件120的输入信号的类型不作限定。
具体地，在本申请实施例中，支撑板130是用于支撑触摸面板110的，其应具有一定强度，故该支撑板130也可以称为是补强板。该支撑板130可以包括补强区131和紧固区132，该补强区131是指该支撑板130中用于支撑触摸面板110的部分区域，也就是说，该补强区131与触摸面板110的下表面固定连接。例如，该补强区131可以与触摸面板110的下表面粘接。该紧固区132是指该支撑板130中将支撑板130安装到电子设备的部分区域，例如，该紧固区132可以将支撑板130连接至电子设备的机壳。该支撑板130还包括柔性连接臂133，该补强区131与该紧固区132通过该柔性连接臂133连接，即该补强区131与该紧固区132柔性连接。柔性连接又可以称为挠性连接，故柔性连接臂133也可以称为挠性臂。本申请实施例中的柔性连接臂133既有约束或传递震动的关系，又可以有一定程度的相对位移。即该柔性连接臂133与该触摸面板110的下表面之间具有间隙。当该触觉反馈部件120震动时，该柔性连接臂133可以在该间隙内上下震动，从而可以平衡触觉反馈部件120的震动。
因此，本申请实施例的触控板，支撑板130的补强区131和紧固区132通过柔性连接臂133一体化连接，可以简化触控板100的组装工艺。并且可以在触觉反馈部件120震动时，通过柔性连接臂133的相对位移来传递震动，由于四个柔性连接臂133对称地布置在支撑板130的四个角落，能够使得触觉反馈部件120所产生的震动均匀地分布在触摸面板的各个位置，从而可以解决触觉反馈部件120偏置时的震动不一致问题，提高用户的震动体验。
另外，将柔性连接臂133设置在支撑板130的角落，可以尽可能地增大补强区131的面积，从而在不影响触控板100刚性的情况下，解决触觉反馈部件120偏置时的震动不一致问题。
可选地，在本申请实施例中，该柔性连接臂的长宽比大于或等于10:1。
图2为图1中A部分的示意性放大图。如图2所示，该柔性连接臂133包括主体部1337、第一连接部1335和第二连接部1336。该主体部1337的两端分别连接第一连接部1335的一端和第二连接部1336的一端，该第一连接部1335的另一端与补强区131连接，该第二连接部1336的另一端与紧固区132连接。其中，本申请所指的柔性连接臂133的长度为拉直后的主体部1337的长度，第一连接部1335和第二连接部1336的长度可忽略不计，即图2中从箭头1至箭头2所示的线段总长。该柔性连接臂133的宽度为主体部 1337的宽度，即图2中从箭头3至箭头4之间的虚线的长度。
将该柔性连接臂的长宽比设置为大于或等于10:1，能够有效地缩短触觉反馈部件的震动拖尾时间(或刹车时间)，使得震感体验越清脆。
可选地，在本申请实施例中，该柔性连接臂的宽度大于或等于2mm。
将该柔性连接臂133的宽度设置为大于或等于2mm，可以增强柔性连接臂133与补强区131或者紧固区132之间的连接强度，使得连接处不易折断。
下面将结合图3至图7详细描述本申请所提供的各种实施例。
图3示出了本申请实施例提供的支撑板130的一种示意性俯视图。如图3所示，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133(柔性连接臂1331、柔性连接臂1332、柔性连接臂1333和柔性连接臂1334)，该四个柔性连接臂133对称地分布在支撑板130的四个角落，该紧固区132包围整个补强区131，并且该补强区131与紧固区132之间具有通孔135，该柔性连接臂133位于通孔135内并连接补强区131与紧固区132。如图3所示，该紧固区132投影到触摸面板所在平面上的投影区域包围触摸面板(图中未示出，位于图中虚线所围绕区域的正上方)，该四个柔性连接臂133通过该紧固区132连接在一起。
图4示出了本申请实施例提供的支撑板130的另一示意性俯视图。如图4所示，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133(柔性连接臂1331、柔性连接臂1332、柔性连接臂1333和柔性连接臂1334)，该四个柔性连接臂133对称地分布在支撑板130的四个角落，该紧固区132包围整个补强区131，并且该补强区131与紧固区132之间具有通孔135，该柔性连接臂133位于通孔135内并连接补强区131与紧固区132。如图4所示，该紧固区132投影到触摸面板所在平面上的投影区域位于该触摸面板(图中未示出，位于支撑板130正上方，且覆盖整个支撑板130)内，且该紧固区132包围补强区131，该四个柔性连接臂133通过该紧固区132连接在一起。
图5示出了本申请实施例提供的支撑板130的又一示意性俯视图。如图5所示，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133(柔性连接臂1331、柔性连接臂1332、柔性连接臂1333和柔性连接臂1334)，该四个柔性连接臂133对称地分布在支撑板130的四个角落。该补强区131 与紧固区132之间具有通孔135。如图5所示，该紧固区132投影到触摸面板所在平面上的投影区域位于该触摸面板(图中未示出，位于支撑板130正上方，且覆盖整个支撑板130)内，且该紧固区132设置在该补强区131相对的两条边的外侧，例如，设置在补强区131沿第一方向X延伸的两条边的外侧。该四个柔性连接臂133中位于该补强区的同一边的外侧的两个柔性连接臂133通过该紧固区132连接在一起。例如，图5中的柔性连接臂1331与柔性连接臂1332通过紧固区132连接在一起，柔性连接臂1333与柔性连接臂1334通过紧固区132连接在一起。
图6示出了本申请实施例提供的支撑板130的再一示意性俯视图。如图6所述，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133(柔性连接臂1331、柔性连接臂1332、柔性连接臂1333和柔性连接臂1334)，该四个柔性连接臂133对称地分布在支撑板130的四个角落。该补强区131与紧固区132之间具有通孔135。如图6所示，该紧固区132投影到该触摸面板所在平面上的投影区域设置在触摸面板(图中未示出，位于图中虚线所围绕区域的正上方)相对的两条边的外侧，例如，设置在触摸面板沿第一方向X延伸的两条边的外侧。该四个柔性连接臂133中位于该触摸面板的同一边的外侧的两个柔性连接臂133通过该紧固区132连接在一起。例如，图6中的柔性连接臂1331与柔性连接臂1332通过紧固区132连接在一起，柔性连接臂1333与柔性连接臂1334通过紧固区132连接在一起。
图7示出了本申请实施例提供的支撑板130的其他示意性俯视图。如图7所示，该支撑板130包括补强区131、紧固区132和四个柔性连接臂133(柔性连接臂1331、柔性连接臂1332、柔性连接臂1333和柔性连接臂1334)，该四个柔性连接臂133对称地分布在支撑板130的四个角落。如图7所示，该紧固区132投影到该触摸面板所在平面上的投影区域位于该触摸面板内的四个角落，该四个柔性连接臂133之间相互独立。
虽然在上述各个实施例中，支撑板130设置了四个柔性连接臂133，但本领域技术人员理解，本申请实施例对该柔性连接臂133的数量不作限定。例如，该支撑板130包括六个柔性连接臂，并且该六个柔性连接臂可以对称地布置在支撑板130的四个角落以及该支撑板130沿第一方向X延伸的两条边的中心位置。
如图8和图9(图8中B部分的放大示意图)所示，当该支撑板130分 别与触摸面板110以及电子设备的机壳组装在一起之后，该柔性连接臂133与触摸面板110在第三方向Z上具有间隙H。该间隙H形成了该柔性连接臂133在Z轴上的形变空间。也就是说，当触觉反馈部件120震动时，带动柔性连接臂133沿第三方向Z在间隙H之间相对位移。从图中也可以看出，该间隙H也为补强区131的粘接面与紧固区132的表面之间的垂直距离。可选地，该间隙H的尺寸范围可以是0.2mm～1mm，进一步地，该间隙H的尺寸范围为0.6mm～0.7mm，震动效果更优。
图10示出了本申请实施例的触控板100的另一示意性爆炸图。
可选地，在本申请实施例中，如图10所示，该触控板100还包括：压力传感器141，设置在触摸面板110的下方，用于在该触摸面板110承受压力时，将该压力传感器141的形变转换为电信号；该触觉反馈部件120用于根据该电信号向用户提供触觉反馈。
在该实施例中，触觉反馈部件120可以根据压力传感器141检测到的电信号带动触摸面板110一起震动，将震动反馈给用户。震动反馈可以使得用户确定其按压操作是否有效，从而可以最大限度地减少重复手势。
具体地，触觉反馈部件120可以在压力传感器141检测到的电信号大于第一阈值时，带动触摸面板110一起震动。该第一阈值是一个指定阈值，可以是通过经验得到的。该第一阈值可以是指用户能够感知到震动的按压力度的临界值，该第一阈值可以大于0。
可选地，当触控板100应用于电子设备时，电子设备也可以存储多个按压力的临界值，用户可以根据使用习惯从中选择一个。例如，电子设备存储轻度按压的临界值、中度按压的临界值以及重度按压的临界值，用户可以根据自己习惯的按压力度从中选择一个临界值。
可选地，如图10所示，该压力传感器141可以通过压力传感器的柔性印制电路(Flexible Printed Circuit，FPC)142与触摸面板110电性连接。也就是说，该压力传感器141检测得到的电信号可以通过该压力传感器的FPC142传递给触摸面板110的电路板，进而该触摸面板110的电路板可以驱动触觉反馈部件120产生震动。
可选地，在本申请实施例中，如图3-7以及图10所示，该支撑板130还设置有悬臂梁结构134，该悬臂梁结构134可以用于支撑该压力传感器141，并且在触摸面板110承受压力时，带动压力传感器141一起发生形变。
悬臂梁结构134是指相对于支撑板130的补强区131，其悬空设置在触摸面板110的下方。也就是说，该悬臂梁结构134与触摸面板110之间具有间隙。例如，该悬臂梁结构134的下表面与所述补强区131的下表面齐平，而该悬臂梁结构134的厚度则小于该补强区131的厚度，以使得悬臂梁结构134与触摸面板110之间具有间隙。可选地，该悬臂梁结构134用于支撑压力传感器141，可以理解为压力传感器141固定于悬臂梁结构134的上表面。或者该压力传感器141也可以固定于悬臂梁结构134的下表面。需要说明的是，此处的下表面是指远离触摸面板110的表面，而此处的上表面则是靠近触摸面板110的表面。
在该实施例中，将用于支撑压力传感器141的悬臂梁结构134与用于支撑触摸面板110的补强板一体成型，不需要额外设置用于支撑压力传感器141的弹性支架，减少了触控板100的组件数量，进而简化了组装工序，节省了成本。
可选地，如图3至图7所示，该支撑板130设置有四个悬臂梁结构134，包括悬臂梁结构1341、悬臂梁结构1342、悬臂梁结构1343和悬臂梁结构1344，该四个悬臂梁结构134对称地分布在该支撑板130的四个角落。
具体地，该四个悬臂梁结构134与该四个柔性连接臂133可以成对地设置在支撑板130的四个角落。
在该实施例中，在支撑板130的四个角落各设置一个悬臂梁结构134，可以增大触控板的结构稳定性。其次，将压力传感器141通过悬臂梁结构134分布在支撑板130的4个角落，还可以提高压力检测的均匀性。
本领域技术人员理解，本申请实施例对该悬臂梁结构134的数量不作限定。例如，该支撑板130可以设置六个悬臂梁结构，并且该六个悬臂梁结构可以对称地布置在支撑板130的四个角落以及该支撑板130沿第一方向X延伸的两条边的中心位置。需要说明的是，本申请实施例中的悬臂梁结构134的数量和柔性连接臂133的数量可以相同，也可以不同。
可选地，如图1至图8以及图10所示，该柔性连接臂133可以是弯折结构。
将柔性连接臂133设置成弯折结构，可以在尽可能少地占用支撑板130中属于补强区131的面积的情况下，使得柔性连接臂133的长宽比大于或等于10:1。
可选地，该悬臂梁结构134可以由支撑板130的紧固区132延伸而来，其与补强区131之间不直接连接，而是通过柔性连接臂133间接连接。
在一种示例中，如图3至图6所示，该悬臂梁结构134沿第二方向Y从紧固区132靠近补强区131延伸，且柔性连接臂133的延伸方向与悬臂梁结构134的延伸方向相同，该柔性连接臂133为弯折结构，并且该弯折结构的第一固定端连接至补强区131，该弯折结构的第二固定端连接至紧固区132。以图3至图6中的柔性连接臂1333为例，该柔性连接臂1333为弯折结构，该弯折结构的第一固定端13331连接至补强区131，该弯折结构的第二固定端13332连接至紧固区132。
在另一种示例中，如图7所示，该悬臂梁结构134沿第一方向X从紧固区132远离补强区131延伸，该柔性连接臂133的延伸方向与该悬臂梁结构134的延伸方向垂直，该柔性连接臂133为弯折结构，该弯折结构的第一固定端连接至该悬臂梁结构134的根部，该弯折结构的第二固定端连接至该补强区131，该紧固区132位于该第一固定端与该根部的连接处。以图7中的柔性连接臂1334为例，该柔性连接臂1334为弯折结构，该弯折结构的第一固定端13341连接至该悬臂梁结构1344的根部，该弯折结构的第二固定端13342连接至补强区131。该紧固区132位于该第一固定端13341与该悬臂梁结构1344的根部的连接处。
可选地，该柔性连接臂133的延伸长度可以不大于悬臂梁结构134的延伸长度，从而使得柔性连接臂133尽可能少地占用支撑板130中属于补强区131的面积，提高支撑板130的补强区131，进而提高触控板100的刚度。
可选地，在其他实施例中，该悬臂梁结构134也可以由支撑板130的补强区131延伸而来，其与紧固区132之间不直接连接，而是通过柔性连接臂133间接连接。
可选地，在该支撑板130的下表面为平面的情况下，该悬臂梁结构134的上表面可以与柔性连接臂133的上表面齐平，也就是说，该悬臂梁结构134的厚度与该柔性连接臂133的厚度相同。也就是说，悬臂梁结构134与触摸面板110之间的间隙与柔性连接臂133与触摸面板110之间的间隙相同。在其他示例中，该悬臂梁结构134的厚度与该柔性连接臂133的厚度不相同，同样地，此处的下表面为远离触摸面板110的表面，此处的上表面为靠近触摸面板110的表面。
可选地，在本申请实施例中，如图10所示，该触控板100还包括：阻尼部件150，设置于触摸面板110与悬臂梁结构134之间，用于在触摸面板110承受压力时使得该悬臂梁结构134发生形变。
具体地，该阻尼部件150可以与压力传感器141并排设置在悬臂梁结构134的上表面。并且该阻尼部件150可以填充该悬臂梁结构134的上表面与触摸面板110的下表面之间的间隙。当手指按压触摸面板110时，该阻尼部件150可以使得该悬臂梁结构134发生形变，从而可以带动压力传感器141发生形变。
在该实施例中，通过在悬臂梁结构134与触摸面板110之间设置阻尼部件150，可以使得悬臂梁结构134发生形变，从而可以带动压力传感器141发生形变，以使得压力传感器进行压力检测。
可选地，在一种示例中，该阻尼部件150可以为硅胶复合材料，例如，硅胶垫。在其他示例中，该阻尼部件150可以为弹簧。
该阻尼部件150不仅可以用来带动悬臂梁结构134发生形变，该可以用于吸收触觉反馈部件120产生的余震。
可选地，该阻尼部件150的硬度可以选择肖氏硬度20A至30A之间，以确保阻尼部件具有一定的刚性，避免在触摸面板110承受压力时，阻尼部件本身发生应变，影响压力检测的准确度。
可选地，该阻尼部件150的厚度可以设置在0.5mm至0.8mm之间，可以避免阻尼部件150的厚度过小导致的悬臂梁结构134的应变空间不足，进而导致悬臂梁结构134所支撑的压力传感器无法有效地进行压力检测。也可以避免阻尼部件150的厚度过大而导致的触摸面板震动不一致的问题。
可选地，在本申请实施例中，该触觉反馈部件120可以是线性马达，例如，X或Y轴震动的线性马达。触觉反馈部件120也可以是压电陶瓷片等。或者，该触觉反馈部件120也可以是其他合适的致动器。触觉反馈部件120可以粘附在触摸面板110的下方，例如，粘附在触摸面板110的下表面。
可选地，如图10所示，该支撑板130上可以设置有避让触觉反馈部件120的避让区域136。
可选地，在本申请实施例中，该柔性连接臂133的延伸方向与触觉反馈部件120的震动方向呈夹角。
如图3至图7所示，该触觉反馈部件120的震动方向为第一方向X，该 柔性连接臂133的延伸方向为第二方向Y，即该柔性连接臂133的延伸方向与该触觉反馈部件120的震动方向呈直角。在其他示例中，该柔性连接臂133的延伸方向与该触觉反馈部件120的震动方向呈锐角。
应理解，本申请实施例对柔性连接臂133的延伸方向与触觉反馈部件120的震动方向之间的夹角可以不作限定，例如，图3至图7中的触觉反馈部件120的震动方向为第二方向Y，则该柔性连接臂133的延伸方向与该触觉反馈部件120的震动方向平行。
可选地，如图10所示，该触摸面板110可以包括：保护面板111、印制电路板(Printed Circuit Board，PCB)112以及胶113；其中，保护面板111与PCB 112可以通过胶113粘接在一起。
可选地，该保护面板111可以用于用户触摸和按压，也可以作为外观装饰，一般采用玻璃或聚酯薄膜(mylar)。该PCB 112则可以用于处理该触控板100内各种传感器获得的电信号。例如，该PCB 112用于根据压力传感器141检测到的压力信号向触觉反馈部件120输出驱动信号。
可选地，该PCB 112上还设置有元器件区1120，对应地，该支撑板130设置有避让该元器件区1120的避让区域137。
可选地，本申请实施例中的压力传感器141可以采用压阻型压力传感器，也可以采用其他类型的压力传感器。
继续参见图10，该支撑板130可以通过胶160与触摸面板110粘接在一起。具体地，该支撑板130的补强区131与触摸面板110粘接在一起。
可选地，本申请实施例中的胶113和胶160可以采用双面胶，也可以采用柔性胶水或者胶垫。
可选地，本申请实施例还提供了一种电子设备，包括机壳和上文描述的各种实施例中的触控板，该机壳与上述紧固区132固定连接。
机壳用于承载电子设备内部组件，例如，电池组件、主板等。
可选地，该机壳与该紧固区132锁附连接。具体地，该紧固区132设置有固定孔，而该机壳的装配面的对应位置设置有安装孔，通过紧固件，例如，紧固螺母，可以将支撑板130安装在电子设备的机壳上，从而将触控板100固定在电子设备的机壳上。
可选地，该机壳与该紧固区132也可以通过铆接或激光点焊的方式固定连接。本申请实施例对机壳与紧固区132的固定方式不作限定。
应理解，可以根据上述各种实施例提供的触控板100设计合适的机壳，例如，该机壳可以设置有开窗，该开窗的大小可以与触摸面板110的大小相同，该机壳上的装配面围绕开窗设置。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以该权利要求的保护范围为准。

Claims (18)

  1. 一种触控板，其特征在于，包括：
    触摸面板；
    触觉反馈部件，设置于所述触摸面板的下方，用于向用户提供震动反馈；
    支撑板，设置于所述触摸面板的下方，所述支撑板包括补强区、紧固区和四个柔性连接臂，所述补强区与所述紧固区通过所述柔性连接臂连接，所述补强区与所述触摸面板固定连接，所述紧固区用于与电子设备的机壳固定连接，所述柔性连接臂与所述触摸面板之间具有间隙，所述四个柔性连接臂对称地设置在所述支撑板的四个角落，所述四个柔性连接臂用于平衡所述触觉反馈部件的震动。
  2. 根据权利要求1所述的触控板，其特征在于，所述柔性连接臂的长宽比大于或等于10:1。
  3. 根据权利要求1或2所述的触控板，其特征在于，所述柔性连接臂的宽度大于或等于2mm。
  4. 根据权利要求1至3中任一项所述的触控板，其特征在于，所述紧固区投影到所述触摸面板所在平面上的投影区域包围所述触摸面板，所述四个柔性连接臂通过所述紧固区连接在一起。
  5. 根据权利要求1至3中任一项所述的触控板，其特征在于，所述紧固区投影到所述触摸面板所在平面上的投影区域位于所述触摸面板内，且所述紧固区包围所述补强区，所述四个柔性连接臂通过所述紧固区连接在一起。
  6. 根据权利要求1至3中任一项所述的触控板，其特征在于，所述紧固区投影到所述触摸面板所在平面上的投影区域位于所述触摸面板内，且所述紧固区设置在所述补强区相对的两条边的外侧，所述四个柔性连接臂中位于所述补强区同一边的外侧的两个柔性连接臂通过所述紧固区连接在一起。
  7. 根据权利要求1至3中任一项所述的触控板，其特征在于，所述紧固区投影到所述触摸面板所在平面上的投影区域位于所述触摸面板相对的两条边的外侧，所述四个柔性连接臂位于所述触摸面板的同一边的外侧两个柔性连接臂通过所述紧固区连接在一起。
  8. 根据权利要求1至3中任一项所述的触控板，其特征在于，所述紧固区投影到所述触摸面板所在平面上的投影区域位于所述触摸面板内的四个角落，所述四个柔性连接臂之间相互独立。
  9. 根据权利要求1至8中任一项所述的触控板，其特征在于，所述触控板还包括：
    压力传感器，设置于所述触摸面板的下方，用于在所述触摸面板承受压力时，将所述压力传感器的形变转换为电信号；
    所述触觉反馈部件用于根据所述电信号向所述用户提供触觉反馈。
  10. 根据权利要求9所述的触控板，其特征在于，所述支撑板还设置有悬臂梁结构，所述悬臂梁结构用于支撑所述压力传感器，并且在所述触摸面板承受压力时，带动所述压力传感器一起发生形变。
  11. 根据权利要求9或10所述的触控板，其特征在于，所述支撑板设置有四个悬臂梁结构，所述四个悬臂梁结构对称地分布在所述支撑板的四个角落。
  12. 根据权利要求11所述的触控板，其特征在于，所述悬臂梁结构沿第二方向从所述紧固区靠近所述补强区延伸，且所述柔性连接臂的延伸方向与所述悬臂梁结构的延伸方向相同，所述柔性连接臂为弯折结构，所述弯折结构的第一固定端连接至所述补强区，所述弯折结构的第二固定端连接至所述紧固区，所述第二方向为所述触控板的长边方向。
  13. 根据权利要求11所述的触控板，其特征在于，所述悬臂梁结构沿第一方向从所述紧固区远离所述补强区延伸，所述柔性连接臂的延伸方向与所述悬臂梁结构的延伸方向垂直，所述柔性连接臂为弯折结构，所述弯折结构的第一固定端连接至所述悬臂梁结构的根部，所述弯折结构的第二固定端连接至所述补强区，所述紧固区位于所述第一固定端与所述根部的连接处，所述第一方向为所述触控板的短边方向。
  14. 根据权利要求10、12-13中任一项所述的触控板，其特征在于，所述触控板还包括：
    阻尼部件，设置于所述触摸面板与所述悬臂梁结构之间，用于在所述触摸面板承受压力时使得所述悬臂梁结构发生形变。
  15. 根据权利要求14所述的触控板，其特征在于，所述阻尼部件为硅胶垫。
  16. 根据权利要求1至15中任一项所述的触控板，其特征在于，所述触觉反馈部件为线性马达。
  17. 一种电子设备，其特征在于，包括机壳和如权利要求1至16中任 一项所述的触控板，所述机壳与所述紧固区固定连接。
  18. 根据权利要求17所述的电子设备，其特征在于，所述机壳与所述紧固区锁附连接。
PCT/CN2022/101972 2022-06-28 2022-06-28 触控板和电子设备 WO2024000172A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160091972A1 (en) * 2014-09-30 2016-03-31 Apple Inc. Haptic feedback assembly
CN114527874A (zh) * 2021-11-19 2022-05-24 达运精密工业股份有限公司 压电触觉反馈结构
CN114546167A (zh) * 2022-02-18 2022-05-27 深圳市汇顶科技股份有限公司 触控板和电子设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160091972A1 (en) * 2014-09-30 2016-03-31 Apple Inc. Haptic feedback assembly
CN114527874A (zh) * 2021-11-19 2022-05-24 达运精密工业股份有限公司 压电触觉反馈结构
CN114546167A (zh) * 2022-02-18 2022-05-27 深圳市汇顶科技股份有限公司 触控板和电子设备

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