WO2021097874A1 - Structure modulaire de génération de son d'écran qui fixe un excitateur à un écran, et terminal de communication mobile - Google Patents

Structure modulaire de génération de son d'écran qui fixe un excitateur à un écran, et terminal de communication mobile Download PDF

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Publication number
WO2021097874A1
WO2021097874A1 PCT/CN2019/120865 CN2019120865W WO2021097874A1 WO 2021097874 A1 WO2021097874 A1 WO 2021097874A1 CN 2019120865 W CN2019120865 W CN 2019120865W WO 2021097874 A1 WO2021097874 A1 WO 2021097874A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
exciter
modular structure
electrically connected
sounding
Prior art date
Application number
PCT/CN2019/120865
Other languages
English (en)
Chinese (zh)
Inventor
葛欢
黄翔
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)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 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2021097874A1 publication Critical patent/WO2021097874A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Definitions

  • the present invention relates to the technical field of communication electronics, in particular to a screen sounding modular structure and a mobile communication terminal in which an exciter and a screen are attached.
  • the screen sound device of the current technology produces sound through the exciter driving the device screen to vibrate.
  • mobile devices such as mobile phones currently use OLED screens with simple structure, lightness and thinness, so the exciter 1 is directly installed on the screen.
  • a more common way is to paste a thinner metal sheet 3 on the back of the screen 2 first, fix the screen 2 on the terminal housing 4, and then install the exciter 1 on the metal sheet 3.
  • the screen 2 itself is relatively fragile, when the exciter 1 directly drives the screen 2, the local pressure and local heating generated by the exciter 1 may damage the screen 2 itself.
  • connection line needs to be independently set to connect with the device mainboard, which is complicated in structure, resulting in low efficiency in the entire assembly process. It can be seen that the screen sound device in the current technology has insufficient screen protection for the device, and the complicated structure causes the problem of low assembly efficiency.
  • the purpose of the present invention is to provide a screen sounding modular structure and a mobile communication terminal in which the exciter and the screen are attached, aiming to solve the problem of insufficient screen protection of the screen sounding equipment in the current technology, and the complex structure leads to low assembly efficiency. .
  • a screen sounding modular structure in which an exciter is attached to the screen which includes a device screen and a device motherboard electrically connected to the device screen.
  • the screen sounding modular structure also includes a flexible circuit board electrically connected to the device screen and a flexible circuit
  • An exciter electrically connected to the board, the flexible circuit board has a connector electrically connected to the device main board and an exciter drive circuit electrically connected to the connector, and the exciter is electrically connected to the device main board through the exciter drive circuit to drive the device screen to vibrate Vocalize.
  • the screen sound modular structure further includes a protective layer
  • the device screen has a screen display surface for displaying graphic element information and a back surface of the screen opposite to the screen display surface, and the protective layer is pasted on the back of the screen.
  • the flexible circuit board has an open end and a connecting end electrically connected to the device screen, the connector is arranged at the open end, and the connecting end is electrically connected to the device screen and then bent and pasted on the protective layer.
  • the flexible circuit board is provided with a connecting seat, and the exciter is fixedly connected to the connecting seat.
  • the flexible circuit board also has a touch drive circuit for touching the screen of the control device and a display drive circuit for driving the device screen to display images.
  • the touch drive circuit, the display drive circuit and the exciter drive circuit are all connected to each other through the connector.
  • the main board of the device is electrically connected.
  • the exciter includes a fixed connecting shell and a connecting terminal extending from the fixed connecting shell, the fixed connecting shell is fixedly attached to the board surface of the flexible circuit board, and the connecting terminal is fixedly welded to the connecting seat.
  • the protective layer includes composite molding of foam and copper foil.
  • a mobile communication terminal includes a terminal housing, a screen sounding modular structure and an equipment mainboard that are all installed on the terminal housing.
  • the terminal housing is provided with a screen installation port.
  • the screen sounding modular structure is a combination of the aforementioned exciter and the screen.
  • the screen sounding modular structure, wherein the device screen is fixedly installed at the screen installation port, wherein the exciter also includes a driving part, the driving part is fixedly connected to the board of the terminal housing opposite to the device screen, the connector and the device main board Electric connection.
  • the flexible circuit board is electrically connected to the device screen, so that the flexible circuit board and the device screen form a whole, and the exciter is fixed on the flexible circuit On the board, the exciter and the device screen are further formed into an integral assembly part, which simplifies the assembly structure between the exciter and the device screen, and improves the assembly efficiency of the device screen.
  • Figure 1 is the assembly structure diagram of the exciter in the mobile communication terminal in the current technology
  • FIG. 2 is an assembly structure diagram of the screen sounding modular structure in which the exciter and the screen are attached according to the present invention
  • Figure 3 is an enlarged view of A in Figure 2;
  • Figure 4 is an exploded view of Figure 2;
  • Figure 5 is a front view of Figure 2;
  • Figure 6 is a view of the first part of the cross-sectional view in the direction of B-B in Figure 5;
  • Figure 7 is a view of the second part of the cross-sectional view in the direction of B-B in Figure 5;
  • Figure 8 is an enlarged view of C in Figure 6;
  • Fig. 9 is a cross-sectional view of the mobile communication terminal of the present invention.
  • the present invention provides a modular structure for screen sound production in which the exciter is attached to the screen.
  • the screen sounding modular structure attached to the actuator and the screen includes a device screen 10 and a device mainboard 200 electrically connected to the device screen 10, wherein the screen sounding modular structure also includes a device screen 10 an electrically connected flexible circuit board 30 and an exciter 40 electrically connected to the flexible circuit board 30.
  • the flexible circuit board 30 has a connector 34 electrically connected to the device main board 200 and an exciter drive circuit 33 electrically connected to the connector 34,
  • the exciter 40 is electrically connected to the device main board 200 through the exciter drive circuit 33 to drive the device screen 10 to vibrate and sound.
  • the flexible circuit board 30 is electrically connected to the device screen 10
  • the flexible circuit board 30 is attached to the device screen 10, so that the flexible circuit board 30 and the device screen 10 form a whole
  • the exciter 40 is fixed on the flexible circuit board 30, which further forms an integral assembly part between the exciter 40 and the device screen 10, which simplifies the assembly structure between the exciter 40 and the device screen 10, and improves the device screen 10 Assembly efficiency.
  • the screen sounding modular structure of the actuator and the screen also includes a protective layer 20, wherein the device screen 10 has a screen display surface for displaying image element information. 11 and the screen back 12 opposite to the screen display surface 11, the protective layer 20 is pasted on the screen back 12 of the device screen 10.
  • the flexible circuit board 30 of the modularized screen sounding structure has an open end 302 and a connection end 301 electrically connected to the device screen 10, wherein the connector 34 is provided at the open end 302, and the connection end 301 is electrically connected to the device screen 10 It is then bent and pasted on the protective layer 20.
  • the screen sounding modular structure in which the exciter provided by the present invention is attached to the screen is applied to a mobile communication terminal.
  • the protective layer 20 is first pasted and fixed on the screen back 12 of the device screen 10
  • the connecting end 301 of the flexible circuit board 30 is connected to the end of the device screen 10
  • the connecting end 301 of the flexible circuit board 30 is turned over, and then the flexible circuit board 30 is pasted on the protective layer 20, through the protection
  • the layer 20 protects the device screen 10, so that the device screen 10 has better seismic and bending resistance, and better protects the device screen 10 from working.
  • the flexible circuit board 40 is provided with a connecting seat 35, and the exciter 40 is fixedly connected to the connecting seat 35.
  • the exciter 40 is fixedly connected to the connecting seat 35 by soldering.
  • the exciter 40 is fixed on the flexible circuit board 30, and is electrically connected to the connection base 35 by fusion welding, so that the exciter 40 and the device screen 10 form an integral assembly part, which simplifies the exciter 40
  • the assembling structure between the device screen 10 and the device screen 10 only needs to electrically connect the connector 34 on the open end 302 of the flexible circuit board 30 to the device main board 200 when assembling the device screen 10, and the actuator 40 can be assembled at the same time. , Improve the assembly efficiency of the device screen 40.
  • the shape of the flexible circuit board 30 can be flexibly adjusted according to the final performance requirements.
  • the installation position of the exciter 40 on the flexible circuit board 30 can also be flexibly adjusted according to the final performance requirements.
  • the flexible circuit board 30 used in the present invention is comprehensively arranged with a touch drive circuit 31 for touch control device screen 10, and a display drive circuit 32 for driving device screen 10 to display images.
  • the driver driving circuit 33 is electrically connected to the connection base 35, and the touch driving circuit 31, the display driving circuit 32 and the exciter driving circuit 33 are all electrically connected to the device main board 200 through the connector 34.
  • the screen sound modular structure integrates the exciter drive circuit 33 on the flexible circuit board 30, thereby simplifying the circuit layout of the mobile communication terminal. By compounding the exciter drive circuit 33 on the flexible circuit board 30, it reduces The clutter of wires.
  • the exciter 40 used in the present invention includes a fixed connecting shell 41 and a connecting terminal 43 extending from the fixed connecting shell 41.
  • the fixed connecting shell 41 is fixedly attached to the surface of the flexible circuit board 30, and the exciter 40 The vibration can be transmitted to the device screen 10 to realize the device screen 10 vibrating and sounding.
  • the connecting terminal 43 is fixedly welded to the connecting base 35, and the exciter 40 is electrically connected to the exciter driving circuit 33 in the flexible circuit board 30 through the connecting terminal 43.
  • the protective layer 20 includes a composite molding of foam and copper foil.
  • the protective layer 20 can also be composite molded using other materials suitable for protecting the device screen 10.
  • the mobile communication terminal includes a terminal housing 100, a screen sounding modular structure and a device mainboard 200 both installed in the terminal housing 100, wherein the terminal housing 100 is provided with a screen installation port
  • the screen sounding modular structure used by the mobile communication terminal is the aforementioned modular sounding screen structure in which the exciter is attached to the screen, wherein the device screen 10 is fixedly installed at the screen installation port, wherein the exciter 40 also includes The driving part 42 (the fixed connecting shell 41 and the driving part 42 are connected by elastic members, such as elastic reeds, and the fixed connecting shell 41 and the driving part 42 are mutually vibrated by electromagnetic driving force, wherein the electromagnetic coil is formed in the driving In section 42, that is: the electromagnetic coil transmits the control current signal through the exciter drive circuit 33), the drive section 42 is fixedly connected to the board surface of the terminal housing 100 opposite to the back of the device screen 10, and the connector 34 is connected

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Une structure modulaire de génération de son d'écran qui fixe un excitateur à un écran, la structure comprenant un écran de dispositif et une carte principale de dispositif connectée électriquement à l'écran de dispositif est fournie dans la présente invention. La structure modulaire de génération de son d'écran comprend en outre une carte de circuit imprimé souple connectée électriquement à l'écran de dispositif et un excitateur électriquement connecté à la carte de circuit imprimé flexible. La carte de circuit imprimé flexible comprend un connecteur connecté électriquement à la carte principale de dispositif et un circuit d'attaque d'excitateur connecté électriquement au connecteur. L'excitateur est électriquement connecté à la carte principale de dispositif au moyen du circuit d'attaque d'excitateur. L'application de la solution technique de la présente invention résout les problèmes selon lesquels le dispositif de génération de son d'écran dans la technologie actuelle présente une protection d'écran de dispositif insuffisante, et la structure compliquée de celui-ci rend le rendement d'assemblage faible.
PCT/CN2019/120865 2019-11-20 2019-11-26 Structure modulaire de génération de son d'écran qui fixe un excitateur à un écran, et terminal de communication mobile WO2021097874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911139435.3 2019-11-20
CN201911139435.3A CN110995894A (zh) 2019-11-20 2019-11-20 激励器与屏幕贴合的屏幕发声模块化结构、移动通讯终端

Publications (1)

Publication Number Publication Date
WO2021097874A1 true WO2021097874A1 (fr) 2021-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/120865 WO2021097874A1 (fr) 2019-11-20 2019-11-26 Structure modulaire de génération de son d'écran qui fixe un excitateur à un écran, et terminal de communication mobile

Country Status (2)

Country Link
CN (1) CN110995894A (fr)
WO (1) WO2021097874A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210136500A1 (en) * 2019-10-31 2021-05-06 AAC Technologies Pte. Ltd. Screen sounding exciter and electronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110116003A1 (en) * 2008-07-18 2011-05-19 Sharp Kabushiki Kaisha Electric circuit structure
CN208128300U (zh) * 2017-12-29 2018-11-20 广东欧珀移动通信有限公司 电子组件和电子设备
CN109600463A (zh) * 2018-11-23 2019-04-09 维沃移动通信有限公司 一种移动终端
CN110113685A (zh) * 2019-05-24 2019-08-09 云谷（固安）科技有限公司 屏幕发声装置
CN110148357A (zh) * 2019-05-22 2019-08-20 云谷（固安）科技有限公司 一种显示发声面板

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070202917A1 (en) * 2006-02-27 2007-08-30 Andrew Phelps Display and speaker module
CN108566464B (zh) * 2018-04-28 2022-05-10 维沃移动通信有限公司 一种移动终端
CN109495832B (zh) * 2018-11-27 2020-08-25 歌尔股份有限公司 表面发声装置以及电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110116003A1 (en) * 2008-07-18 2011-05-19 Sharp Kabushiki Kaisha Electric circuit structure
CN208128300U (zh) * 2017-12-29 2018-11-20 广东欧珀移动通信有限公司 电子组件和电子设备
CN109600463A (zh) * 2018-11-23 2019-04-09 维沃移动通信有限公司 一种移动终端
CN110148357A (zh) * 2019-05-22 2019-08-20 云谷（固安）科技有限公司 一种显示发声面板
CN110113685A (zh) * 2019-05-24 2019-08-09 云谷（固安）科技有限公司 屏幕发声装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210136500A1 (en) * 2019-10-31 2021-05-06 AAC Technologies Pte. Ltd. Screen sounding exciter and electronic device

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Publication number Publication date
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