WO2024007698A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2024007698A1
WO2024007698A1 PCT/CN2023/090858 CN2023090858W WO2024007698A1 WO 2024007698 A1 WO2024007698 A1 WO 2024007698A1 CN 2023090858 W CN2023090858 W CN 2023090858W WO 2024007698 A1 WO2024007698 A1 WO 2024007698A1
Authority
WO
WIPO (PCT)
Prior art keywords
display screen
section
electronic device
adhesive
vibration
Prior art date
Application number
PCT/CN2023/090858
Other languages
English (en)
French (fr)
Inventor
代艾欣
叶千峰
吴江
程有宏
Original Assignee
荣耀终端有限公司
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.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Publication of WO2024007698A1 publication Critical patent/WO2024007698A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the present application relates to the field of electronic technology, and in particular to an electronic device.
  • the present application provides an electronic device to solve the technical problem that electronic devices in the prior art are prone to sound leakage.
  • Electronic equipment includes mid-frames, displays, vibration components and adhesive parts.
  • the display screen includes a first side and a second side arranged oppositely, and the first side and the second side are respectively located at opposite ends in the length direction of the display screen.
  • the vibration element is fixedly connected to the back of the display screen and is located at one end close to the first side.
  • the bonding member includes a first bonding body and a second bonding body. The bonding member is bonded to the back of the display screen and is located around the outer periphery of the vibration element. The first bonding body Located at the edge of the display screen, the second bonding body is located between the vibrating element and the second side.
  • the display screen is fixedly connected to the middle frame, the back side of the display screen faces the middle frame, and the adhesive member is bonded between the display screen and the middle frame.
  • the vibration element receives the electrical signal from the main control board of the electronic device and converts the electrical energy into mechanical energy, thereby driving the display screen to vibrate and then emitting sound, thereby realizing the screen vibrating and making sounds.
  • an adhesive member is provided between the middle frame and the display screen, and the second adhesive body of the adhesive member is disposed between the vibrating element and the second side, so that the vibrating element vibrates to drive the display screen.
  • the top vibrates, it can suppress the vibration at the bottom of the display and weaken the vibration intensity at the bottom of the display, thereby reducing the vibration intensity at the bottom of the display, thereby reducing the loudness of the sound leakage point and avoiding sound leakage in electronic devices during calls. phenomenon, improving the privacy of calls.
  • the end of the display screen close to the first side is the top of the display screen, and the end close to the second side is the bottom end.
  • the display screen includes a first part and a second part, the second bonding body is located between the first part and the second part, and the vibration element is provided on the first part.
  • the vibration of the vibration element can drive the display screen to vibrate, and the vibration amplitude of the second part is smaller than the vibration amplitude of the first part.
  • the vibration of the vibration element drives the vibration of the first part of the display screen
  • the vibration of the second part can be suppressed and the second part of the display screen can be weakened.
  • the vibration intensity of the two parts can weaken the loudness of the sound leakage point, avoid sound leakage in electronic devices during calls, and improve the privacy of calls.
  • the second bonding body is spaced apart from the vibrating element, and the distance between the second bonding body and the vibrating element is less than or equal to 3 times the length of the display screen. /4.
  • the position of the second adhesive body can be adjusted according to the needs of the actual application scenario to avoid other components provided on the display screen, and at the same time, it can also ensure that the screen sound generating device has the function of preventing sound leakage.
  • the display screen further includes a third side and a fourth side.
  • the third side and the fourth side are opposite to each other and connected to the first side and the fourth side. between the second sides.
  • the first bonding body includes a first section, a second section and a third section connected in sequence, the first section is located on the back and close to the edge of the third side, and the second section is located on the back side and close to the edge of the third side.
  • the third section is provided on the back side and close to the fourth side. edge.
  • a fixed connection between the display screen and the middle frame can be achieved, thereby ensuring the stability of the connection between the screen sound-generating device and the middle frame, and the structural stability of the electronic device.
  • the second bonding body is parallel to and spaced apart from the second section, one end of the second bonding body is fixedly connected to the first section, and the other end is connected to the third section.
  • Three sections of fixed connection by connecting the first adhesive body between the first section and the second section, and allowing the second adhesive body to adhere to the middle frame of the display screen, the connection between the display screen and the middle frame can be further improved. Stability, it can also avoid or reduce the vibration of the vibrating element to drive the bottom of the display screen to vibrate, weaken the vibration amplitude of the bottom end of the display screen, weaken the loudness of the sound leakage point, avoid sound leakage in electronic equipment during calls, and improve Privacy of calls
  • the length of the second bonding body is less than the length of the second section, the second bonding body is parallel to and spaced apart from the second section, and the second bonding body One end of the body is fixedly connected to the first section, and the other end is spaced apart from the third section.
  • one end of the second adhesive body and the third section at a distance, it is possible to ensure that the loudness of the sound leakage point can be reduced and at the same time, it can be avoided between the second adhesive body and the third section. components between them, while also saving raw materials.
  • the length of the second bonding body is less than the length of the second section, the second bonding body is parallel to and spaced apart from the second section, and the second bonding body One end of the second bonding body is close to the first section and is spaced apart from the first section. One end of the second bonding body is close to the third section and is spaced apart from the third section.
  • the vibration element is a piezoelectric ceramic unit exciter or a micro-vibration unit exciter.
  • the vibration element is electrically connected to the main control board of the electronic device, and the vibration of the vibration element drives the display screen to vibrate, thereby realizing the display screen to emit sound.
  • the vibrating element is a piezoelectric ceramic
  • the piezoelectric effect of the piezoelectric ceramic is used to apply a reverse voltage at both ends of the piezoelectric ceramic to bend the piezoelectric ceramic, thereby driving the display screen to vibrate.
  • the vibrating element is used to realize sound generation on the display screen of the electronic device, thereby reducing the width of the top border of the display screen, reducing openings in the display screen, and improving the sealing performance of the electronic device. At the same time, it can also save space inside the electronic device.
  • the adhesive member is double-sided tape or dispensing tape.
  • the double-sided tape can be acrylic double-sided tape.
  • the dispensing glue can be acrylic glue or UV curing glue.
  • the display screen includes a display surface opposite to the back surface, the display screen includes a flat part and a curved part, the curved part surrounds the periphery of the flat part and is fixed to the flat part connected, the bending portion is bent from the display surface toward the back surface.
  • the three-dimensional effect of the display can be improved and the user's experience can be improved.
  • the electronic device further includes a back cover.
  • the back cover is located on a side of the middle frame facing away from the display screen, and is fixedly connected to the middle frame.
  • the electronic device provided in this embodiment emits sound through the screen, which can reduce the width of the top frame of the display screen, reduce the opening of the display screen, and improve the sealing performance of the electronic device. At the same time, it can also save space inside the electronic device.
  • the vibration intensity at the bottom of the display screen is weak, which can weaken the vibration intensity at the bottom of the display screen, thereby reducing the loudness of the sound leakage point and preventing the electronic device from sound leakage during the call. phenomenon, improving the privacy of calls.
  • the middle frame includes a first surface and a second surface arranged oppositely, and a side of the adhesive member facing away from the display screen is bonded to the first surface, thereby realizing display.
  • an adhesive member is provided between the middle frame and the display screen, and the second adhesive body of the adhesive member is disposed between the vibrating element and the second side, so that the vibrating element vibrates to drive the display screen.
  • the top vibrates, it can suppress the vibration at the bottom of the display and weaken the vibration intensity at the bottom of the display, thereby reducing the vibration intensity at the bottom of the display, thereby reducing the loudness of the sound leakage point and avoiding sound leakage in electronic devices during calls. phenomenon, improving the privacy of calls.
  • Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • Figure 2 is a partial cross-sectional structural schematic diagram of the electronic device shown in Figure 1;
  • FIG 3 is a schematic structural diagram of the screen sound-generating component in the electronic device shown in Figure 1;
  • Figure 4 is a schematic cross-sectional structural diagram of the screen sound-generating component shown in Figure 3 along the A-A direction;
  • Figure 5 is a partial cross-sectional structural diagram of the screen sound-generating component shown in Figure 3 along the B-B direction;
  • Figure 6 is a vibration simulation diagram of the electronic device provided by the comparative embodiment
  • Figure 7 is a vibration simulation diagram of the electronic equipment shown in Figure 1;
  • Figure 8 is a graph showing changes in ear loudness with frequency for the electronic device provided by the comparative embodiment shown in Figure 6 and the electronic device provided by the embodiment of the present application shown in Figure 1;
  • Figure 9 is a graph showing the loudness of the sound leakage position as a function of frequency for the screen sound-emitting component provided by the comparative embodiment shown in Figure 6 and the electronic device provided by the embodiment of the present application shown in Figure 1;
  • Figure 10 is a schematic structural diagram of a screen sound-generating component in an electronic device provided by the second embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a screen sound component in an electronic device provided by the third embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of an electronic device 200 provided by an embodiment of the present application.
  • FIG. 2 is a partial cross-sectional structural schematic diagram of the electronic device 200 shown in FIG. 1 .
  • the electronic device 200 provided in the embodiment of the present application includes but is not limited to a cell phone, a notebook computer, a tablet personal computer, a laptop computer, and a personal digital assistant. Or wearable devices, etc.
  • electronic device 200 is a mobile phone Be explained.
  • the length direction of the electronic device 200 is defined as the X direction
  • the width direction of the electronic device 200 is defined as the Y direction
  • the thickness direction of the electronic device 200 is defined as the Z direction.
  • the X direction, Y direction and Z direction are perpendicular to each other.
  • the electronic device 200 includes a back cover 110 , a middle frame 120 , electronic components (not shown), and a screen sound emitting component 100 .
  • the middle frame 120 includes a middle plate and a frame (not shown). The frame surrounds the periphery of the middle plate and is fixedly connected to the middle plate.
  • the middle frame includes a first side 1201 and a second side 1202. The first surface 1201 and the second surface 1202 are arranged opposite each other and located on opposite sides in the Z direction.
  • the back cover 110 and the screen sound emitting assembly 100 are respectively located on opposite sides of the middle frame 120 in the thickness direction, and are fixedly connected to the middle frame 120 . Among them, the first side 1201 faces the screen sound emitting component 100, and the second side 1202 faces the back cover.
  • Electronic components include circuit boards, cameras, sensors, etc. The electronic components are located in the receiving space and are fixedly connected to the middle frame 120 .
  • FIG. 3 is a schematic structural diagram of the screen sound-generating component 100 in the electronic device 200 shown in FIG. 1 .
  • FIG. 4 is a schematic cross-sectional structural diagram of the screen sound-generating component 100 shown in FIG. 3 along the A-A direction.
  • FIG. 5 is a partial cross-sectional structural diagram along the B-B direction of the screen sound-generating component 100 shown in FIG. 3 .
  • "cut along A-A” refers to cutting along line A-A and the plane where the arrows at both ends of line A-A are located
  • cutting along B-B refers to cutting along line B-B and the plane where the arrows at both ends of line B-B are located. Plane section.
  • the description of the drawings in the following text can be understood in the same way.
  • the screen sound assembly 100 includes a display screen 10 , a vibrating element 20 and an adhesive member 30 .
  • the display screen 10 is a flexible display screen, such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode).
  • OLED organic light-emitting diode
  • active-matrix organic light-emitting diode active-matrix organic light-emitting diode
  • the display screen 10 may also be a rigid display screen, such as a liquid crystal display (LCD).
  • LCD liquid crystal display
  • the display screen 10 includes a flat portion 11 and a curved portion 12 .
  • the curved portion 12 surrounds the periphery of the flat portion 11 and is fixedly connected to the flat portion 11 .
  • the flat portion 11 and the curved portion 12 are connected and face the same surface to form the surface of the display screen 10 , which are respectively the display surface 13 and the back surface 14 , and the display surface 13 and the back surface 14 are arranged oppositely.
  • the display surface 13 is used to display text, images, videos, etc.
  • the curved portion 12 is curved from the side located on the flat portion 11 along the display surface 13 toward the back surface 14 . In this embodiment, the angle between the flat portion 11 and the curved portion 12 is an obtuse angle.
  • the angle between the flat portion 11 and the curved portion 12 may also be a right angle.
  • the curved portion 12 on the display screen 10 and both the flat portion 11 and the curved portion 12 of the display screen 10 can be used for display, the three-dimensional effect of the display can be improved and the user's experience can be improved.
  • the display screen 10 also includes a first side 101 , a second side 102 , a third side 103 and a fourth side 104 .
  • the first side 101 and the second side 102 are arranged oppositely, and their extending directions are parallel to the X direction.
  • the first side 101 and the second side 102 are respectively located on opposite sides of the display screen 10 in the Y direction.
  • the third side 103 and the fourth side 104 are arranged oppositely, and their extending directions are parallel to the Y direction.
  • the third side 103 and the fourth side 104 are respectively located on opposite sides of the display screen 10 in the X direction.
  • the first side 101 , the third side 103 , the second side 102 and the fourth side 104 are connected end to end and together form the sides of the flat portion 11 of the display screen 10 .
  • the end of the display screen 10 close to the first side 101 is the top of the screen sound emitting component 100 .
  • the display screen 10 vibrates and sounds, and the user's ear is close to the top of the display screen 10 .
  • the end of the display screen 10 close to the second side 102 is the bottom end of the screen sound emitting component 100 .
  • the display screen 10 vibrates and produces sound. The greater the vibration amplitude at the bottom of the display screen 10, the louder the sound leakage position.
  • the orientation terms such as “top” and “bottom” used here are mainly based on the display orientation of the screen sound component 100 in FIG. 2 , with “top” being toward the positive direction of the Y-axis, and “top” being toward the Y-axis.
  • the negative direction is “bottom”, which does not limit the orientation of the screen sound component 100 in actual application scenarios.
  • the back 14 of the display screen 10 is also provided with a first component 41 and a second component 42 .
  • the first component 41 and the second component 42 may be conductive foam or other components.
  • the first element 41 and the second element 42 are both fixed on the back 14 of the display screen 10 .
  • the first element 41 is located in the edge area of the back 14 and close to the third side 103 .
  • the second element 42 is located in the edge area of the back 14 and close to the fourth side 104 .
  • the first component 41 and the second component 42 may not be provided on the back 14 of the display screen 10 , or the positions of the first component 41 and the second component 42 may be adjusted according to actual usage requirements.
  • the vibration element 20 is a piezoelectric ceramic unit exciter. In other embodiments, the vibration element 20 may also be a micro-vibration element exciter.
  • the vibration element 20 is fixed on the back 14 of the display screen 10 , close to the first side 101 , and spaced apart from the first side 101 . That is to say, the distance from the vibration element 20 to the first side 101 is smaller than the distance to the second side 102 .
  • the vibration element 20 is electrically connected to the main control board of the electronic device 200. The vibration of the vibration element 20 drives the display screen 10 to vibrate, thereby realizing the display screen 10 to generate sound.
  • the vibration element 20 is a piezoelectric ceramic
  • the piezoelectric effect of the piezoelectric ceramic is utilized to apply a reverse voltage at both ends of the piezoelectric ceramic to bend the piezoelectric ceramic, thereby driving the display screen 10 to vibrate.
  • the vibrating element 20 is used to realize sound generation from the display screen of the electronic device 200 , thereby reducing the width of the top frame of the display screen 10 , reducing the openings in the display screen 10 , and improving the sealing performance of the electronic device 200 .
  • the space inside the electronic device 200 can also be saved.
  • the adhesive member 30 is double-sided tape.
  • the adhesive member 30 may also be dispensing glue, such as acrylic glue or UV curing glue.
  • the adhesive member 30 may also be made of other adhesive materials.
  • the adhesive member 30 includes a first adhesive body 31 and a second adhesive body 32 .
  • the first adhesive body 31 and the second adhesive body 32 are both adhered to the back 14 of the display screen 10 .
  • the first bonding body 31 is located at the edge of the flat portion 11
  • the second bonding body 32 is located in the middle of the flat portion 11 and between the vibrating element 20 and the second side 102 .
  • the first adhesive body 31 and the second adhesive body 32 may be an integral piece, or may be formed by a combination of multiple sections of adhesive.
  • the first adhesive body 31 includes a first adhesive surface 301 and a second adhesive surface 302 .
  • the first bonding surface 301 and the second bonding surface 302 are arranged opposite to each other.
  • the first bonding body 31 also includes a first section 311 , a second section 312 and a third section 313 .
  • the first section 311 , the second section 312 and the third section 313 face the same surface and together form the first bonding surface 301 and the second bonding surface 302 .
  • the first section 311 is a long strip structure.
  • the first section 311 is provided with a gap 314 .
  • the gap 314 separates the first section 311 into two sections of substructure.
  • the length of the first section 311 is slightly smaller than the size of the flat portion 11 in the Y direction.
  • the length of the first section 311 can also be consistent with the size of the flat portion 11 in the Y direction.
  • the first adhesive surface 301 of the first section 311 is adhered to the back 14 of the display screen 10 and is located at the edge of the flat portion 11 close to the third side 103 , and the extension direction of the first section 311 is parallel to the Y direction.
  • the first element 41 is located in the notch 314 , and the notch 314 is used to avoid the first element 41 .
  • the first section 311 may also be provided with a curved section, and the first element 41 is disposed in the avoidance space formed by the curved section.
  • the first section 311 may also be provided with multiple notches 314 to avoid the multiple first elements 41 installed on the back 14 of the display screen 10 .
  • the first element 41 is not provided on the back 14 of the display screen 10.
  • the first section 311 is a continuous long strip structure.
  • the structure of the third section 313 is similar to the structure of the first section 311 .
  • the third section 313 is parallel to and spaced apart from the first section 311 .
  • the first bonding surface 301 of the third section 313 is bonded to the edge of the flat portion 11 close to the fourth side 104 .
  • the third section 313 includes a straight section 3131 and a curved section 3132.
  • the curved section 3132 is fixedly connected to the straight section 3131, and the curved section 3132 protrudes toward the third side 103 relative to the straight section 3131.
  • the curved section 3132 forms an escape groove 3133 in the back protruding direction.
  • the second element 42 is located in the escape groove 3133.
  • the avoidance groove 3133 is used to avoid the second element 42 .
  • a gap can also be provided in the third section 313 to avoid the second element 42 .
  • the second section 312 is a long strip structure, and its extending direction is parallel to the X direction.
  • the opposite ends of the second section 312 are respectively fixedly connected to the ends of the first section 311 and the third section 313 close to the first side 101 .
  • the first bonding surface 301 of the second section 312 is bonded to the edge of the flat portion 11 close to the first side 101 and is located between the first side 101 and the vibrating element 20 . That is to say, the first section 311 , the second section 312 and the third section 313 are connected in sequence and are bonded to the edge of the flat portion 11 along the third side 103 , the first side 101 and the fourth side 104 . .
  • the first adhesive body 31 can also have other shapes.
  • the shape of the first adhesive body 31 is not specifically limited here, as long as the first adhesive body 31 is bonded to the back 14 of the display screen 10. And it is located at the edge of the flat part 11, so that the display screen 10 and the middle frame 120 can be fixedly connected.
  • the second adhesive body 32 includes a third adhesive surface 321 and a fourth adhesive surface 322 .
  • the third bonding surface 321 and the fourth bonding surface 322 are arranged opposite to each other.
  • the second bonding body 32 is elongated.
  • the extension direction of the second adhesive body 32 is parallel to the X direction and is spaced apart from the second section 312 of the first adhesive body 31 .
  • the third adhesive surface 321 of the second adhesive body 32 is adhered to the back 14 of the display screen 10 , and one end of the second adhesive body 32 is fixedly connected to the first section 311 , and the other end is fixedly connected to the third section 313 .
  • the second adhesive body 32 , the first side 101 , part of the third side 103 and part of the fourth side 104 form the first part 15 of the display screen 10 .
  • the area enclosed by the second adhesive body 32 , the second side 102 , the third side 103 and the fourth side 104 is the second part 16 of the display screen 10 .
  • the minimum distance between the second bonding body 32 and the vibration element 20 is 5 mm. In other embodiments, the minimum distance between the second adhesive body 32 and the vibrating element 20 can also be 2 mm, 10 mm, or other dimensions, as long as the distance between the second adhesive body 32 and the first side 101 is less than or equal to the display screen 10 3/4 of the size in the Y direction is enough. In actual application, the position of the second adhesive body 32 can be adjusted as needed to avoid other components provided on the display screen 10 , while also ensuring that the screen sound-generating component 100 has the function of preventing sound leakage.
  • the display screen 10 is installed on the middle frame 120 .
  • the back 14 of the display screen 10 faces the middle frame 120 , and the vibration element 20 and the adhesive member 30 are both located between the display screen 10 and the middle frame 120 .
  • the surface of the adhesive member 30 facing away from the display screen 10 is bonded to the surface of the middle frame 120 .
  • the first bonding surface 301 of the first bonding body 31 is fixedly connected to the back 14 of the display screen 10
  • the second bonding surface 302 is fixedly connected to the first surface 1201 of the middle frame 120
  • the second bonding body 32 is fixedly connected to the back surface 14 of the display screen 10 .
  • the third adhesive surface 321 is fixedly connected to the back 14 of the display screen 10
  • the fourth adhesive surface 322 is fixedly connected to the first surface 1201 of the middle frame 120 , thereby achieving a fixed connection between the display screen 10 and the middle frame 120 .
  • the vibration element 20 receives an electrical signal from the main control board of the electronic device 200 and converts the electrical energy into mechanical energy, thereby driving the display screen 10 to vibrate and then emit sound.
  • the second adhesive body 32 is disposed on the back 14 of the display screen 10 and between the vibration element 20 and the second side 102 , and the second adhesive body 32 is bonded to the display screen 10 and the middle frame. 120, when the vibrating element 20 vibrates to drive the first part 15 of the display screen 10 to vibrate, it can suppress the vibration of the second part 16 and weaken the vibration intensity of the second part 16, thereby weakening the loudness of the sound leakage point and avoiding electronic interference during the call.
  • Equipment 200 out Eliminates sound leakage and improves the privacy of calls.
  • FIG. 6 is a vibration simulation diagram of the electronic device provided by the comparative embodiment
  • FIG. 7 is a vibration simulation diagram of the electronic device 200 shown in FIG. 1 .
  • the adhesive member in the comparative embodiment includes a first adhesive body and does not include a second adhesive body. That is, the adhesive member in the electronic device shown in FIG. 6 is only adhered to the periphery of the flat portion.
  • the vibration amplitude and loudness of the display screen 10 are the largest at the location where the vibrating element 20 is installed. As the distance from the vibration point of the display screen 10 to the vibration element 20 increases, the vibration amplitude gradually decreases, and the loudness gradually decreases.
  • the “vibration point” can be any position on the display screen 10 . Both the first part 15 and the second part 16 of the display screen 10 have a large vibration amplitude, and the vibration range is large. The vibration of the vibrating element 20 will propagate toward the bottom of the display screen 10 .
  • the vibration element 20 when the vibration element 20 vibrates and drives the first part 15 of the display screen 10 to vibrate, it will also drive the second part 16 to vibrate, so that the display screen 10 still has a larger vibration amplitude near the bottom. , which will cause sound leakage.
  • the vibration amplitude and loudness of the display screen 10 are the largest at the location where the vibrating element 20 is installed. As the distance from the vibration point of the display screen 10 to the vibrating element 20 increases at any time, the vibration amplitude gradually decreases, and the loudness gradually decreases.
  • the first part 15 of the display screen 10 has a larger vibration amplitude, while the second part 16 has a smaller vibration amplitude, and the display screen 10 has a smaller vibration range.
  • the vibration element 20 vibrates, it drives the first part 15 of the display screen 10 to vibrate, while the vibration amplitude of the second part 16 of the display screen 10 is small. That is, the vibration amplitude of the display screen 10 near the bottom end is smaller, thereby avoiding sound leakage.
  • Figure 8 is a graph showing changes in ear loudness with frequency for the electronic device provided by the comparative embodiment shown in Figure 6 and the electronic device 200 provided by the embodiment of the present application shown in Figure 1.
  • Figure 9 is A graph showing the loudness of the sound leakage position as a function of frequency for the screen sound-emitting component provided by the comparative embodiment shown in FIG. 6 and the electronic device 200 provided by the embodiment of the present application shown in FIG. 1 .
  • the “in-ear loudness” mentioned here refers to the loudness of the sound emitted by the electronic device 200 through the display screen 10 when it reaches the human ear. Specifically, the in-ear loudness can be tested through the acqua audio test system, and the electronic device 200 is located at the human ear during the test.
  • the “sound leakage position” mentioned here refers to the position 30 cm from the center of the user's head when the electronic device 200 is held. Of course, the "sound leakage position” can also be a position greater than 30cm or less than 30cm from the user's head, which can be adjusted according to the actual test scenario.
  • “Sound leakage position loudness” is the loudness value obtained by testing the frequency-loudness curve of the sound leakage position and calculating the frequency-loudness curve.
  • the in-ear loudness of the electronic device provided by the comparative embodiment is greater than the in-ear loudness of the electronic device 200 provided by the embodiment shown in FIG. 1 .
  • the in-ear loudness of the electronic device provided by the comparative embodiment gradually approaches that of the electronic device 200 provided by the embodiment shown in FIG. 1 .
  • the in-ear loudness of the electronic device 200 provided by the embodiment shown in FIG. 1 is greater than that of the electronic device provided by the comparative embodiment.
  • the frequency when the frequency is less than 1000Hz, as the frequency increases, the loudness of the sound leakage position increases. Moreover, when the frequency is less than 1000 Hz, the sound leakage position loudness of the electronic device provided by the comparative embodiment is greater than the sound leakage position loudness of the screen sound emitting component 100 provided by the embodiment shown in FIG. 1 .
  • the frequency is greater than 1000 Hz, as the frequency gradually increases, the loudness of the sound leakage position of the electronic device provided by the embodiment is compared with the sound leakage position of the electronic device 200 provided by the embodiment shown in FIG. 1 The loudness gradually approaches.
  • Table 1 shows the in-ear loudness and sound leakage position loudness of the electronic device provided by the comparative embodiment shown in FIG. 6 and the electronic device 200 provided by the embodiment of the present application shown in FIG. 1 . It should be noted that the loudness in Table 1 is a weighted average. The larger the weighted average of loudness, the smaller the actual loudness.
  • the weighted average in-ear loudness of the electronic device provided by the comparative embodiment is smaller than the weighted average in-ear loudness of the electronic device 200 provided by the embodiment shown in FIG. 1 . That is, the in-ear loudness of the electronic device provided by the comparative embodiment is greater than the in-ear loudness of the electronic device 200 provided by the embodiment shown in FIG. 1 .
  • the weighted average loudness of sound leakage points of the electronic device provided by the comparative embodiment is smaller than the weighted average loudness of sound leakage points of the electronic device 200 provided by the embodiment shown in FIG. 1 .
  • the sound leakage point loudness of the electronic device provided by the comparative embodiment is greater than the sound leakage point loudness of the electronic device 200 provided by the embodiment shown in FIG. 1 .
  • the difference between the weighted average in-ear loudness and the weighted average leakage soundness of the electronic device provided by the comparative embodiment is greater than the weighted average in-ear loudness and the weighted average leakage soundness of the electronic device 200 provided by the embodiment shown in FIG. 1
  • the difference between the weighted averages. 1 in this embodiment, by providing a second adhesive body 32 and bonding the second adhesive body 32 to the display screen 10 and the middle frame 120 , the loudness of the sound leakage point of the screen sound-emitting component 100 can be reduced.
  • FIG. 10 is a schematic structural diagram of the screen sound component 100 in the electronic device 200 provided by the second embodiment of the present application.
  • the second adhesive body 32 is elongated, and the length of the second adhesive body 32 is smaller than the first section 311 and the third section of the first adhesive body 31 The distance between 313.
  • the third adhesive surface 321 of the second adhesive body 32 is adhered to the back 14 of the display screen 10 .
  • One end of the second adhesive body 32 is fixedly connected to the first section 311 , and the other end is spaced apart from the third section 313 .
  • the fixed connection between the display screen 10 and the middle frame 120 can be achieved, and the vibration amplitude of the second part 16 can be reduced, thereby reducing the sound leakage point. loudness, while also being able to avoid components installed on the back 14 of the display screen 10 .
  • the second bonding body 32 may also be composed of multiple sub-bonding bodies. A plurality of sub-adhesive bodies are adhered to the back 14 of the display screen 10 at intervals along the X direction. There is no specific restriction on the shape of the second adhesive body 32 here, as long as the second adhesive body 32 is adhered to the back 14 of the display screen 10 and is located between the vibrating element 20 and the second side 102 .
  • FIG. 11 is a schematic structural diagram of the screen sound component 100 in the electronic device 200 provided by the third embodiment of the present application.
  • the difference between this embodiment and the embodiment of FIG. 3 is that in this embodiment, there is no first element in the extending direction of the first section 311 of the first bonding body 31 .
  • the first section 311 of the first adhesive body 31 is a continuous elongated structure, one end of the second section 312 is fixedly connected to the first section 311 , and the other end is fixedly connected to the second section 312 .
  • the first section 311, the second section 312 and the third section 313 are connected in sequence to form a continuous structure.
  • Part of the first section 311 , the second section 312 , part of the third section 313 and the second bonding body 32 are connected end to end to form a closed area 1 , and the vibration element 20 is located in the closed area 1 .
  • the connecting bodies 32 are connected to form a closed area 1, so that after the display screen 10 and the middle frame 120 are connected, the vibrating element 20 is located in the closed space, which can prevent the vibration waves generated by the vibration of the vibrating element 20 from flowing into the gap between the middle frame 120 and the display screen 10.
  • the sound leakage prevention effect of the electronic device 200 can be further improved.
  • both ends of the second bonding body 32 may be spaced apart from the first bonding body 31 . That is to say, there is a gap between the end of the second adhesive body 32 close to the first section 311 and the first section 311 , and there is a gap between the end of the second adhesive body 32 close to the third section 313 and the third section 313 .

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Abstract

一种电子设备（200），包括中框（120）、显示屏（10）、振动元件（20）和粘接件（30）。显示屏（10）包括相对设置的第一侧边（101）和第二侧边（102），第一侧边（101）和第二侧边（102）分别位于显示屏（10）长度方向的相对两端。振动元件（20）与显示屏（10）的背面（14）固定连接，并位于靠近第一侧边（101）的一端。粘接件（30）包括第一粘接体（31）和第二粘接体（32），粘接件（30）粘接于显示屏（10）的背面（14），并位于振动元件（20）的外周围，第一粘接体（31）位于显示屏（10）的边缘，第二粘接体（32）位于振动元件（20）和第二侧边（102）之间。显示屏（10）与中框（120）固定连接，显示屏（10）的背面（14）朝向中框（120），粘接件（30）粘接于显示屏（10）和中框（120）之间。可以解决现有技术中的电子设备（200）容易出现漏音现象的技术问题。

Description

电子设备
本申请要求2022年07月04日在中国提交的申请号为202210780166.4、申请名称为“电子设备”的专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子技术领域，尤其涉及一种电子设备。
背景技术
随着科技的不断发展，手机等电子设备已成为人们的必需品，人们对手机的性能要求也越来越高。采用屏幕发声的电子设备可以节约手机的内部空间，提高屏占比，提升用户的使用体验。然而，现有技术中采用屏幕发声的电子设备，在通话时会出现漏音的现象，私密性不好。
发明内容
本申请提供一种电子设备，以解决现有技术中的电子设备容易出现漏音现象的技术问题。
为解决以上问题，本申请提供一种电子设备。电子设备包括中框、显示屏、振动元件和粘接件。所述显示屏包括相对设置的第一侧边和第二侧边，所述第一侧边和所述第二侧边分别位于所述显示屏长度方向的相对两端。所述振动元件与所述显示屏的背面固定连接，并位于靠近所述第一侧边的一端。所述粘接件包括第一粘接体和第二粘接体，所述粘接件粘接于所述显示屏的背面，并位于所述振动元件的外周围，所述第一粘接体位于所述显示屏的边缘，所述第二粘接体位于所述振动元件和所述第二侧边之间。所述显示屏与所述中框固定连接，所述显示屏的背面朝向所述中框，所述粘接件粘接于所述显示屏和所述中框之间。
振动元件从电子设备的主控板接收电信号，并将电能转化为机械能，从而带动显示屏振动，进而发出声音，从而实现屏幕振动发声。本实施例中，通过在中框和显示屏之间设置粘接件，并将粘接件的第二粘接体设于振动元件和第二侧边之间，使得振动元件振动带动显示屏的顶端振动时，能够抑制显示屏的底端振动，减弱显示屏的底端的振动强度，从而可以减弱显示屏底端振动强度，从而降低漏音点的响度，避免在通话时电子设备出现漏音的现象，提升通话的私密性。需要说明的是，显示屏靠近第一侧边的一端为显示屏的顶端，靠近第二侧边的一端为底端。
一种可能的实施方式中，所述显示屏包括第一部分和第二部分，所述第二粘接体位于所述第一部分和所述第二部分之间，所述振动元件设于所述第一部分，所述振动元件振动可带动所述显示屏振动，所述第二部分的振动幅度小于所述第一部分的振动幅度。
本实施例中，通过将第二粘接体粘接于显示屏的第一部分和第二部分之间，使得振动元件振动带动显示屏的第一部分振动时，能够抑制第二部分的振动，减弱第二部分的振动强度，从而可以减弱漏音点的响度，避免在通话时电子设备出现漏音的现象，提升通话的私密性。
一种可能的实施方式中，所述第二粘接体与所述振动元件间隔设置，且所述第二粘接体到所述振动元件的距离小于或等于所述显示屏的长度尺寸的3/4。
本实施例中，可以根据实际应用场景的需要调整第二粘接体的位置，以避让设于显示屏的其他元件，同时还能够保证屏幕发声装置具有防漏音的作用。
一种可能的实施方式中，所述显示屏还包括第三侧边和第四侧边，所述第三侧边和所述第四侧边相对设置，并连接于所述第一侧边和所述第二侧边之间。所述第一粘接体包括依次连接的第一段、第二段和第三段，所述第一段设于所述背面且靠近所述第三侧边的边缘，所述第二段设于所述背面且靠近所述第一侧边的边缘，并位于所述第一侧边和所述振动元件之间，所述第三段设于所述背面且靠近所述第四侧边的边缘。
本实施例中，通过在显示屏的边缘设置第一粘接体，从而可以实现显示屏与中框的固定连接，从而保证屏幕发声装置与中框的连接稳定性，以及电子设备的结构稳定性。
一种可能的实施方式中，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体的一端与所述第一段固定连接，另一端与所述第三段固定连接。本实施例中，通过将第一粘接体连接于第一段和第二段之间，并使第二粘接体粘接显示屏的中框，从而可以进一步提升显示屏与中框的连接稳定性，同时还可以避免或者减少振动元件振动带动显示屏的底端发生振动，减弱显示屏的底端的振动幅度，减弱漏音点的响度，避免在通话时电子设备出现漏音的现象，提升通话的私密性
一种可能的实施方式中，所述第二粘接体的长度小于所述第二段的长度，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体的一端与所述第一段固定连接，另一端与所述第三段间隔设置。本实施例中，通过将第二粘接体的一端与第三段间隔设置，从而可以在保证能够降低漏音点的响度的同时，起到避让设于第二粘接体和第三段之间的元件，同时还能够起到节约原料的作用。
一种可能的实施方式中，所述第二粘接体的长度小于所述第二段的长度，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体靠近所述第一段的一端与所述第一段间隔设置，所述第二粘接体靠近所述第三段的一端与所述第三段间隔设置。
一种可能的实施方式中，所述振动元件为压电陶瓷单元激励器或者微振动单元激励器。本实施例中，振动元件与电子设备的主控板电连接，振动元件振动带动显示屏震动，从而实现显示屏发声。当振动元件为压电陶瓷时，利用压电陶瓷的压电效应，在压电陶瓷的两端施加反向电压，以使压电陶瓷弯曲，从而带动显示屏振动。本实施例中，通过振动元件实现电子设备的显示屏发声，从而可以缩小显示屏顶端边框宽度，减少显示屏开孔，提高电子设备的密封性。同时，还能够节约电子设备内部的空间。
一种可能的实施方式中，所述粘接件为双面胶或者点胶。双面胶可以是丙烯酸类双面胶。点胶可以是丙烯酸胶或者UV固化胶等。
一种可能的实施方式中，所述显示屏包括与所述背面相对的显示面，所述显示屏包括平坦部和弯曲部，所述弯曲部围绕所述平坦部的周缘，并与平坦部固定连接，所述弯曲部由所述显示面朝向所述背面的方向弯曲。
本实施例中，通过在显示屏设置弯曲部，且显示屏的平坦部和弯曲部均可用于显示，从而可以提高显示的立体感，提升用户的使用体验。
一种可能的实施方式中，电子设备还包括后盖。所述后盖设于所述中框背向所述显示屏的一侧，并与所述中框固定连接。
本实施例提供的电子设备通过屏幕发声，可以缩小显示屏顶端边框宽度，减少显示屏开孔，提高电子设备的密封性。同时，还能够节约电子设备内部的空间。同时，本实施例提供的电子设备在通话时，显示屏的底端的振动强度较弱，可以减弱显示屏底端振动强度，从而降低漏音点的响度，避免在通话时电子设备出现漏音的现象，提升通话的私密性。
一种可能的实施方式中，所述中框包括相对设置的第一面和第二面，所述粘接件背向所述显示屏的一侧粘结于所述第一面，从而实现显示屏与中框的固定连接。
综合上述，本申请通过在中框和显示屏之间设置粘接件，并将粘接件的第二粘接体设于振动元件和第二侧边之间，使得振动元件振动带动显示屏的顶端振动时，能够抑制显示屏的底端振动，减弱显示屏的底端的振动强度，从而可以减弱位于显示屏底端振动强度，从而降低漏音点的响度，避免在通话时电子设备出现漏音的现象，提升通话的私密性。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的电子设备的结构示意图；
图2是图1所示电子设备的部分剖面结构示意图；
图3是图1所示电子设备中的屏幕发声组件的结构示意图；
图4是图3所示屏幕发声组件沿A-A方向的剖面结构示意图；
图5是图3所示屏幕发声组件沿B-B方向的部分剖面结构示意图；
图6是对比实施例提供的电子设备的振动仿真图；
图7是图1所示电子设备的振动仿真图；
图8是图6所示对比实施例提供的电子设备和图1所示本申请实施例提供的电子设备的耳内响度随频率变化的曲线图；
图9是图6所示对比实施例提供的屏幕发声组件和图1所示本申请实施例提供的电子设备的漏音位置响度随频率变化的曲线图；
图10是本申请第二实施例提供的电子设备中的屏幕发声组件的结构示意图；
图11是本申请第三实施例提供的电子设备中的屏幕发声组件的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1，图1是本申请实施例提供的电子设备200的结构示意图，图2是图1所示电子设备200的部分剖面结构示意图。
本申请实施例提供的电子设备200包括但不限于手机(cellphone)、笔记本电脑(notebook computer)、平板电脑(tablet personal computer)、膝上型电脑(laptop computer)、个人数字助理(personal digital assistant)或可穿戴式设备(wearable device)等。以下以电子设备200为手机 进行说明。
为了便于描述，将电子设备200的长度方向定义为X方向，将电子设备200的宽度方向定义为Y方向，将电子设备200的厚度方向定义为Z方向。X方向、Y方向和Z方向两两相互垂直。
电子设备200包括后盖110、中框120、电子元器件(图未示)和屏幕发声组件100。中框120包括中板和边框(图未示)，边框围绕在中板的周缘，并与中板固定连接。中框包括第一面1201和第二面1202。第一面1201和第二面1202相对设置，并位于Z方向的相对两侧。后盖110和屏幕发声组件100分别位于中框120在厚度方向的相对两侧，并与中框120固定连接。其中，第一面1201朝向屏幕发声组件100，第二面1202朝向后盖。中框120与后盖110之间具有收容空间。电子元器件包括电路板、摄像头、传感器等。电子元器件位于收容空间内，并与中框120固定连接。
请一并参阅图3至图5，图3是图1所示电子设备200中的屏幕发声组件100的结构示意图，图4是图3所示屏幕发声组件100沿A-A方向的剖面结构示意图，图5是图3所示屏幕发声组件100沿B-B方向的部分剖面结构示意图。本申请附图中，沿“A-A处剖开”是指沿A-A线及A-A线两端箭头所在的平面剖开，沿“B-B处剖开”是指沿B-B线及B-B线两端箭头所在的平面剖开。后文中对附图的说明可做相同理解。
屏幕发声组件100包括显示屏10、振动元件20和粘接件30。本实施例中，显示屏10为柔性显示屏，例如有机发光二极管(organic light-emitting diode，OLED)显示屏，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light-emitting diode，AMOLED)显示屏，迷你发光二极管(mini organic lightemitting diode)显示屏，微型发光二极管(micro organic light-emitting diode)显示屏，微型有机发光二极管(micro organic light-emitting diode)显示屏，量子点发光二极管(quantum dot light emitting diodes，QLED)显示屏。其他实施例中，显示屏10也可以用刚性显示屏，例如液晶显示屏(liquid crystal display，LCD)。
显示屏10包括平坦部11和弯曲部12。弯曲部12围绕平坦部11的周缘，并与平坦部11固定连接。平坦部11和弯曲部12连接后朝向相同的面共同形成显示屏10的表面，分别为显示面13和背面14，且显示面13与背面14相对设置。显示面13用于显示文字、图像和视频等。弯曲部12由位于平坦部11的一侧，沿着显示面13朝向背面14方向弯曲。本实施例中，平坦部11与弯曲部12之间的夹角为钝角。在其他实施例中，平坦部11与弯曲部12之间的夹角也可以是直角。本实施例中，通过在显示屏10设置弯曲部12，且显示屏10的平坦部11和弯曲部12均可用于显示，从而可以提高显示的立体感，提升用户的使用体验。
显示屏10还包括第一侧边101、第二侧边102、第三侧边103和第四侧边104。第一侧边101和第二侧边102相对设置，且延伸方向均与X方向平行。第一侧边101和第二侧边102分别位于显示屏10在Y方向的相对两侧。第三侧边103和第四侧边104相对设置，且延伸方向均与Y方向平行。第三侧边103和第四侧边104分别位于显示屏10在X方向的相对两侧。第一侧边101、第三侧边103、第二侧边102和第四侧边104首尾连接，共同形成显示屏10的平坦部11的侧边。
显示屏10靠近第一侧边101的一端为屏幕发声组件100的顶端。在通话时，显示屏10振动发声，用户的耳朵靠近显示屏10的顶端。显示屏10靠近第二侧边102的一端为屏幕发声组件100的底端。在通话时，显示屏10振动发声，显示屏10的底端振动幅度越大，漏音位置响度越大。需要说明的是，这里采用“顶”、“底”等方位用词主要依据屏幕发声组件100于附图2中的展示方位进行阐述，以朝向Y轴正方向为“顶”，以朝向Y轴负方向为“底”，其并不形成对屏幕发声组件100于实际应用场景中的方位的限定。
本实施例中，显示屏10的背面14还设有第一元件41和第二元件42。第一元件41和第二元件42可以是导电泡棉，也可以是其他元件。第一元件41和第二元件42均固定于显示屏10的背面14。第一元件41位于背面14的边缘区域，并靠近第三侧边103。第二元件42位于背面14的边缘区域，并靠近第四侧边104。当然，在其他实施例中，显示屏10的背面14也可以不设置第一元件41和第二元件42，或者第一元件41和第二元件42的位置可以根据实际使用需求进行调整。
本实施例中，振动元件20为压电陶瓷单元激励器。在其他实施例中，振动元件20也可以是微振动元件激励器。振动元件20固定于显示屏10的背面14，并靠近第一侧边101，且与第一侧边101间隔设置。也就是说，振动元件20到第一侧边101的距离小于到第二侧边102的距离。振动元件20与电子设备200的主控板电连接，振动元件20振动带动显示屏10震动，从而实现显示屏10发声。当振动元件20为压电陶瓷时，利用压电陶瓷的压电效应，在压电陶瓷的两端施加反向电压，以使压电陶瓷弯曲，从而带动显示屏10振动。本实施例中，通过振动元件20实现电子设备200的显示屏发声，从而可以缩小显示屏10顶端边框宽度，减少显示屏10开孔，提高电子设备200的密封性。同时，还能够节约电子设备200内部的空间。
本实施例中，粘接件30为双面胶。例如，丙烯酸类双面胶。在其他实施例中，粘接件30也可以是点胶，如丙烯酸胶或者UV固化胶等。或者，粘接件30也可以是其他粘接材料。粘接件30包括第一粘接体31和第二粘接体32。第一粘接体31和第二粘接体32均粘接于显示屏10的背面14。其中，第一粘接体31位于平坦部11的边缘，第二粘接体32位于平坦部11的中部，并位于振动元件20和第二侧边102之间。第一粘接体31和第二粘接体32可以是一体件，也可以由多段粘胶组合形成。
第一粘接体31包括第一粘接面301和第二粘接面302。第一粘接面301和第二粘接面302相对设置。第一粘接体31还包括第一段311、第二段312和第三段313。第一段311、第二段312和第三段313朝向相同的面共同组成第一粘接面301和第二粘接面302。
本实施例中，第一段311为长条形结构。第一段311设有缺口314。缺口314将第一段311分隔为两段子结构。第一段311的长度稍小于平坦部11在Y方向的尺寸。当然，第一段311的长度也可以与平坦部11在Y方向的尺寸一致。第一段311的第一粘接面301粘接于显示屏10的背面14，并位于平坦部11靠近第三侧边103的边缘，且第一段311的延伸方向与Y方向平行。第一元件41位于缺口314内，缺口314用于避让第一元件41。在其他实施例中，第一段311也可以设有弯曲段，第一元件41设于弯曲段形成的避让空间内。或者，当第一元件41为多个时，第一段311也可以设有多个缺口314，以避让安装于显示屏10背面14的多个第一元件41。或者，当显示屏10的背面14未设置第一元件41时， 第一段311为连续的长条形结构。
第三段313的结构与第一段311的结构相似。第三段313与第一段311平行且间隔设置。第三段313的第一粘接面301粘接于平坦部11靠近第四侧边104的边缘。本实施例中，第三段313包括直线段3131和弯曲段3132。弯曲段3132与直线段3131固定连接，且弯曲段3132相对直线段3131朝向第三侧边103方向凸出。弯曲段3132在背向凸出方向形成避让槽3133。第二元件42位于避让槽3133内。避让槽3133用于避让第二元件42。在其他实施例中，也可以通过在第三段313设置缺口，以避让第二元件42。
第二段312为长条形结构，且延伸方向与X方向平行。第二段312的相对两端分别与第一段311和第三段313靠近第一侧边101的端部固定连接。第二段312的第一粘接面301粘接于平坦部11靠近第一侧边101的边缘，并位于第一侧边101和振动元件20之间。也就是说，第一段311、第二段312和第三段313依次连接，并沿着第三侧边103、第一侧边101和第四侧边104方向粘接于平坦部11的边缘。
在其他实施例中，第一粘接体31也可以是其他形状，在这里不对第一粘接体31的形状做具体限制，只要第一粘接体31粘接于显示屏10的背面14，并位于平坦部11的边缘，可以实现显示屏10与中框120的固定连接即可。
第二粘接体32包括第三粘接面321和第四粘接面322。第三粘接面321和第四粘接面322相对设置。第二粘接体32为长条形。第二粘接体32的延伸方向与X方向平行，并与第一粘接体31的第二段312间隔设置。第二粘接体32的第三粘接面321粘接于显示屏10的背面14，且第二粘接体32的一端与第一段311固定连接，另一端与第三段313固定连接。
第二粘接体32、第一侧边101、部分第三侧边103和部分第四侧边104围合形成显示屏10的第一部分15。第二粘接体32、第二侧边102、第三侧边103和第四侧边104围合形成的区域为显示屏10的第二部分16。
本实施例中，第二粘接体32到振动元件20的最小距离为5mm。在其他实施例中，第二粘接体32到振动元件20的最小距离也可以是2mm、10mm或者其他尺寸，只要第二粘接体32到第一侧边101的距离小于或等于显示屏10在Y方向的尺寸的3/4即可。在实际应用过程中，可以根据需要调整第二粘接体32的位置，以避让设于显示屏10的其他元件，同时还能够保证屏幕发声组件100具有防漏音的作用。
请一并参阅图2，显示屏10安装于中框120。显示屏10的背面14朝向中框120，振动元件20和粘接件30均位于显示屏10和中框120之间。粘接件30背向显示屏10的表面粘接于中框120的表面。其中，第一粘接体31的第一粘接面301与显示屏10的背面14固定连接，第二粘接面302与中框120的第一面1201固定连接，第二粘接体32的第三粘接面321与显示屏10的背面14固定连接，第四粘接面322与中框120的第一面1201固定连接，从而实现显示屏10与中框120的固定连接。
振动元件20从电子设备200的主控板接收电信号，并将电能转化为机械能，从而带动显示屏10振动，进而发出声音。本实施例中，通过在显示屏10的背面14且位于振动元件20和第二侧边102之间设置第二粘接体32，并使第二粘接体32粘接显示屏10和中框120，使得振动元件20振动带动显示屏10的第一部分15振动时，能够抑制第二部分16的振动，减弱第二部分16的振动强度，从而可以减弱漏音点的响度，避免在通话时电子设备200出 现漏音的现象，提升通话的私密性。
请参阅图6和图7，图6是对比实施例提供的电子设备的振动仿真图，图7是图1所示电子设备200的振动仿真图。
图6所示对比实施例与本申请的不同之处在于，对比实施例中的粘接件包括第一粘接体，不包括第二粘接体。也就是说，图6所示电子设备中的粘接件仅粘接于平坦部的周缘。
如图6所示，显示屏10在安装有振动元件20处的振动幅度最大，响度最大。随着显示屏10的振动点到振动元件20的距离的增大，振动幅度逐渐减小，响度逐渐减小。“振动点”可以是显示屏10的任意位置。显示屏10的第一部分15和第二部分16均具有较大的振动幅度，并且振动范围较大。振动元件20的振动会朝向显示屏10的底端方向传播。也就是说，对比实施例中，振动元件20振动，带动显示屏10的第一部分15振动时，会带动第二部分16振动，使得显示屏10在靠近底端处仍有具有较大的振动幅度，从而会造成漏音现象。
如图7所示，本申请实施例中，显示屏10在安装有振动元件20处的振动幅度最大，响度最大。随时显示屏10的振动点到振动元件20的距离的增大，振动幅度逐渐减小，响度逐渐减小。显示屏10的第一部分15具有较大振动幅度，而在第二部分16的振动幅度较小，显示屏10的振动范围较小。振动元件20振动时，带动显示屏10的第一部分15振动，而显示屏10的第二部分16的振动幅度小。也就是，显示屏10在靠近底端处的振动幅度较小，从而可以避免漏音现象的产生。
请参阅图8和图9，图8是图6所示对比实施例提供的电子设备和图1所示本申请实施例提供的电子设备200的耳内响度随频率变化的曲线图，图9是图6所示对比实施例提供的屏幕发声组件和图1所示本申请实施例提供的电子设备200的漏音位置响度随频率变化的曲线图。
需要解释的是，这里所说的“耳内响度”是指电子设备200通过显示屏10发出的声音传播到人耳时的响度。具体的，耳内响度可以通过acqua音频测试系统进行测试，测试时电子设备200位于人耳处。这里所说的“漏音位置”是指手持电子设备200时，距离使用者头部正中心30cm的位置。当然，“漏音位置”也可以是为距离使用者头部大于30cm，或者小于30cm的位置，可以根据实际测试场景进行调整。“漏音位置响度”为通过测试漏音位置频率-响度曲线，并计算频率-响度曲线得到的响度值。
如图8所示，在频率小于1000Hz时，随着频率的增大，耳内响度增大。并且，在频率小于1000Hz时，对比实施例提供的电子设备的耳内响度大于图1所示实施例提供的电子设备200的耳内响度。在频率大于1000Hz时，随着频率的逐渐增大，对比实施例提供的电子设备的耳内响度与图1所示实施例提供的电子设备200的耳内响度逐渐接近。随着频率的进一步增大，图1所示实施例提供的电子设备200的耳内响度大于对比实施例提供的电子设备的耳内响度。
如图9所示，在频率小于1000Hz时，随着频率的增大，漏音位置响度增大。并且，在频率小于1000Hz时，对比实施例提供的电子设备的漏音位置响度大于图1所示实施例提供的屏幕发声组件100的漏音位置响度。在频率大于1000Hz时，随着频率的逐渐增大，对比实施例提供的电子设备的漏音位置响度与图1所示实施例提供的电子设备200的漏音位置 响度逐渐接近。
请参阅表1，表1是图6所示对比实施例提供的电子设备和图1所示本申请实施例提供的电子设备200的耳内响度和漏音位置响度。需要说明的是，表1中的响度均为加权平均值，响度的加权平均值越大表示实际响度越小。
如表1所示，对比实施例提供的电子设备的耳内响度加权平均值小于图1所示实施例提供的电子设备200的耳内响度加权平均值。也就是，对比实施例提供的电子设备的耳内响度大于图1所示实施例提供的电子设备200的耳内响度。对比实施例提供的电子设备的漏音点响度加权平均值小于图1所示实施例提供的电子设备200的漏音点响度加权平均值。也就是，对比实施例提供的电子设备的漏音点响度大于图1所示实施例提供的电子设备200的漏音点响度。并且，对比实施例提供的电子设备的耳内响度加权平均值与漏音响度加权平均值的差值，大于图1所示实施例提供的电子设备200的耳内响度加权平均值与漏音响度加权平均值的差值。结合图1，本实施例中，通过设置第二粘接体32，并将第二粘接体32粘接显示屏10和中框120，能够减小屏幕发声组件100的漏音点响度。
表1
请参阅图10，图10是本申请第二实施例提供的电子设备200中的屏幕发声组件100的结构示意图。
本实施例与图3实施例的不同之处在于，第二粘接体32为长条形，且第二粘接体32的长度小于第一粘接体31的第一段311和第三段313之间的距离。第二粘接体32的第三粘接面321粘接于显示屏10的背面14，且第二粘接体32的一端与第一段311固定连接，另一端与第三段313间隔设置。
本实施例中，通过将第二粘接体32与第三段313间隔设置，一方面可以实现显示屏10与中框120的固定连接，降低位于第二部分16振动幅度，从而降低漏音点的响度，同时还能够避让安装于显示屏10背面14的元器件。
在一种实施方式中，第二粘接体32也可以由多个子粘接体组成。多个子粘接体沿着X方向间隔粘接于显示屏10的背面14。在这里不对第二粘接体32的形状做具体限制，只要第二粘接体32粘接与显示屏10的背面14，并位于振动元件20和第二侧边102之间即可。
请参阅图11，图11是本申请第三实施例提供的电子设备200中的屏幕发声组件100的结构示意图。
本实施例与图3实施例的不同之处在于，本实施例中，在第一粘接体31的第一段311延伸方向未设有第一元件。第一粘接体31的第一段311为连续的长条形结构，第二段312的一端与第一段311固定连接，另一端与第二段312固定连接。第一段311、第二段312和第三段313依次连接，形成连续结构。
部分第一段311、第二段312、部分第三段313和第二粘接体32首尾连接围合形成封闭区域1，振动元件20位于封闭区域1内。本实施例中，通过使第一粘接体31和第二粘 接体32连接形成封闭区域1，使得显示屏10与中框120连接之后，振动元件20位于封闭空间内，可以避免振动元件20振动产生的振动波从中框120与显示屏10之间的间隙向外传播，从而可以进一步提升电子设备200的防漏音的效果。
在一种实施例中，第二粘接体32也可以两端都与第一粘接体31间隔设置。也就是说，第二粘接体32靠近第一段311的一端与第一段311之间具有间隙，第二粘接体32靠近第三段313的一端与第三段313之间具有间隙。
以上，仅为本申请的部分实施例和实施方式，本申请的保护范围不局限于此，任何熟知本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权利要求的保护范围为准。

Claims (12)

  1. 一种电子设备，其特征在于，包括：中框、显示屏、振动元件和粘接件；
    所述显示屏包括相对设置的第一侧边和第二侧边，所述第一侧边和所述第二侧边分别位于所述显示屏长度方向的相对两端；
    所述振动元件与所述显示屏的背面固定连接，并位于靠近所述第一侧边的一端；
    所述粘接件包括第一粘接体和第二粘接体，所述粘接件粘接于所述显示屏的背面，并位于所述振动元件的外周围，所述第一粘接体位于所述显示屏的边缘，所述第二粘接体位于所述振动元件和所述第二侧边之间；
    所述显示屏与所述中框固定连接，所述显示屏的背面朝向所述中框，所述粘接件粘接于所述显示屏和所述中框之间。
  2. 根据权利要求1所述的电子设备，其特征在于，所述显示屏包括第一部分和第二部分，所述第二粘接体位于所述第一部分和所述第二部分之间，所述振动元件设于所述第一部分，所述振动元件振动可带动所述显示屏振动，所述第二部分的振动幅度小于所述第一部分的振动幅度。
  3. 根据权利要求1或2所述的电子设备，其特征在于，所述第二粘接体与所述振动元件间隔设置，且所述第二粘接体到所述振动元件的距离小于或等于所述显示屏的长度尺寸的3/4。
  4. 根据权利要求1至3任一项所述的电子设备，其特征在于，所述显示屏还包括第三侧边和第四侧边，所述第三侧边和所述第四侧边相对设置，并连接于所述第一侧边和所述第二侧边之间；
    所述第一粘接体包括依次连接的第一段、第二段和第三段，所述第一段设于所述背面且靠近所述第三侧边的边缘，所述第二段设于所述背面且靠近所述第一侧边的边缘，并位于所述第一侧边和所述振动元件之间，所述第三段设于所述背面且靠近所述第四侧边的边缘。
  5. 根据权利要求4所述的电子设备，其特征在于，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体的一端与所述第一段固定连接，另一端与所述第三段固定连接。
  6. 根据权利要求4所述的电子设备，其特征在于，所述第二粘接体的长度小于所述第二段的长度，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体的一端与所述第一段固定连接，另一端与所述第三段间隔设置。
  7. 根据权利要求4所述的电子设备，其特征在于，所述第二粘接体的长度小于所述第 二段的长度，所述第二粘接体与所述第二段平行且间隔设置，所述第二粘接体靠近所述第一段的一端与所述第一段间隔设置，所述第二粘接体靠近所述第三段的一端与所述第三段间隔设置。
  8. 根据权利要求1至7任一项所述的电子设备，其特征在于，所述振动元件为压电陶瓷单元激励器或者微振动单元激励器。
  9. 根据权利要求1至7任一项所述的电子设备，其特征在于，所述粘接件为双面胶或者点胶。
  10. 根据权利要求1所述的电子设备，其特征在于，所述显示屏包括与所述背面相对的显示面，所述显示屏包括平坦部和弯曲部，所述弯曲部围绕所述平坦部的周缘，并与平坦部固定连接，所述弯曲部由所述显示面朝向所述背面的方向弯曲。
  11. 根据权利要求1所述的电子设备，其特征在于，所述电子设备还包括后盖，所述后盖设于所述中框背向所述显示屏的一侧，并与所述中框固定连接。
  12. 根据权利要求11所述的电子设备，其特征在于，所述中框包括相对设置的第一面和第二面，所述粘接件背向所述显示屏的一侧粘结于所述第一面。
PCT/CN2023/090858 2022-07-04 2023-04-26 电子设备 WO2024007698A1 (zh)

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