WO2021238919A1 - 屏幕发声装置、控制方法、电子设备以及存储介质 - Google Patents

屏幕发声装置、控制方法、电子设备以及存储介质 Download PDF

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Publication number
WO2021238919A1
WO2021238919A1 PCT/CN2021/095816 CN2021095816W WO2021238919A1 WO 2021238919 A1 WO2021238919 A1 WO 2021238919A1 CN 2021095816 W CN2021095816 W CN 2021095816W WO 2021238919 A1 WO2021238919 A1 WO 2021238919A1
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WO
WIPO (PCT)
Prior art keywords
vibration transmission
vibration
screen
display module
sound
Prior art date
Application number
PCT/CN2021/095816
Other languages
English (en)
French (fr)
Inventor
王彦彬
Original Assignee
中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2021238919A1 publication Critical patent/WO2021238919A1/zh

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • 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
    • 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
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • This application relates to the technical field of screen sound, and in particular to a screen sound device, a control method, electronic equipment, and a storage medium.
  • the direct-drive EMA device is a promising EMA device. It can be used as a non-porous earpiece and linear motor. It is mainly used in flexible OLED or back cover speakers. The advantages are low sound leakage, large loudness, and close hearing Ordinary speakers, but there is a problem of poor privacy. If the loudness of the direct-drive EMA device is reduced globally, it will affect the user's daily experience.
  • the embodiment of the present application provides a screen sounding device, which is applied to an electronic device including a display module.
  • the screen sounding device includes an electromagnetic vibrator, a plurality of vibration-transmitting plates, and the plurality of vibration-transmitting plates are fixed under the display module. And covering the sound area of the display module, the electromagnetic vibrator is fixed on the vibration transmission plate, and each vibration transmission plate is provided with a filling material; when each vibration transmission plate is heated, the filling material in the vibration transmission plate is heated by a solid state To liquid.
  • the embodiment of the present application also proposes a control method, which is applied to an electronic device including a display module.
  • the electronic device also includes the above-mentioned screen sounding device.
  • the method includes: detecting the contact position of the user and the sounding area of the display module; and according to the contact position , Determine the non-related areas that do not cover the contact position in the sound area; heat the filling material in the vibration plate in the non-related areas from solid to liquid.
  • the embodiment of the present application also proposes an electronic device.
  • the device includes a memory, a processor, a program stored in the memory and capable of running on the processor, the above-mentioned screen sounding device, and a device for implementing the combination of the processor and the memory and the screen sounding device. It is a data bus that connects and communicates with each other, and when the program is executed by the processor, the steps of the above-mentioned control method are realized.
  • the embodiment of the present application also proposes a storage medium for computer-readable storage.
  • the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to realize the above-mentioned Steps of the control method.
  • FIG. 1 is a schematic diagram of the front of an electronic device where the screen sounding device of the first embodiment of the present application is located;
  • FIG. 2 is a schematic diagram of the back of the electronic device where the screen sounding device of the first embodiment of the present application is located;
  • FIG. 3 is a schematic diagram of one side of the screen sound emitting device according to the first embodiment of the present application.
  • FIG. 4 is a schematic diagram of the other side of the screen sound emitting device of the first embodiment of the present application.
  • FIG. 5 is a schematic diagram of a screen sounding device including multiple pairs of heating electrodes according to the first embodiment of the present application
  • FIG. 6 is a cross-sectional view of the vibration transmission sheet of the first embodiment of the present application.
  • Fig. 7 is an enlarged cross-sectional view of the vibration transmission plate in Fig. 6;
  • FIG. 8 is a specific flowchart of the control method of the second embodiment of the present application.
  • Fig. 9 is a schematic diagram of an electronic device according to a third embodiment of the present application.
  • module means, “component” or “unit” used to indicate elements is only for the description of the present application, and has no special meaning in itself. Therefore, “module”, “part” or “unit” can be used in a mixed manner.
  • the first embodiment of the present application provides a screen sound device, which is applied to an electronic device including a display module.
  • the display module can be a display screen of the electronic device.
  • the electronic device is, for example, a mobile phone, a tablet computer, etc., and the screen sound device is fixed It is arranged under the display module.
  • the lower part of the display module is the back of the display module, which is located inside the electronic device, and the upper part of the display module is the front of the display module, which is used to display images and the like to the user.
  • the screen sounding device includes: an electromagnetic vibrator, a plurality of vibration transmission plates, the plurality of vibration transmission plates are fixed under the display module and cover the sound area of the display module, and the electromagnetic vibrator is fixed on the vibration transmission plate ,
  • Each vibration transmission plate is provided with a filling material; when each vibration transmission plate is heated, the filling material in the vibration transmission plate is heated from solid to liquid.
  • a plurality of vibration-transmitting plates are fixed below the display module and cover the sound area of the display module, and the electromagnetic vibrator is fixed on the vibration-transmitting plate.
  • the vibration transmission plate is heated, the filling material in the vibration transmission plate is heated from solid to liquid, and the transmission efficiency of sound waves in the solid is higher than that in the liquid, so that the sound wave in the filling material is a liquid vibration transmission plate.
  • the increased resistance in this direction makes the loudness of the sound in this direction smaller than that of the vibration-transmitting plate filled with solid materials; thus, the direction of the sound wave emitted by the electromagnetic vibrator can be controlled by controlling the state of the filling material in the vibration-transmitting plate.
  • the directional control makes the sound of the electromagnetic vibrator more directional, reduces the spread of sound waves to a certain extent, improves the privacy of the user when using it, and has a lower cost.
  • the electromagnetic vibrator can be a direct-drive electromagnetic vibrator. Please refer to Figures 1 to 4.
  • the screen sounding device includes an electromagnetic vibrator 1, a vibration support 2 and a plurality of vibration plates 3, and the plurality of vibration plates 3 pass through the vibration support 2 Below the display module 4, the electromagnetic vibrator 1 is fixed on the vibration plate 3 through the vibration bracket 2.
  • the electromagnetic vibrator 1 emits sound when the user uses the preset service of the electronic device, such as answering phone calls, playing music, and playing. Games etc.
  • the electromagnetic vibrator 1 is in contact with each vibration-transmitting piece 3.
  • the display module 4 of the electronic device is provided with at least one sounding area 41 (one is taken as an example in the figure), and each sounding area 41 is correspondingly provided with a screen sounding device.
  • the shape of the sounding area 41 can be set according to requirements, as shown in Figure 1 Taking the shape of the sound area 41 as a circle as an example, a plurality of vibration-transmitting plates 3 are fixed on one side of the vibration support 2, and the vibration support 2 is fixed under the display module 4, that is, the multiple vibration-transmitting plates 3 pass through the vibration support 2. Fixed under the display module 4, the side of the vibration support 2 with the vibration transmission plate 3 facing the display module 4, the area formed by the splicing of multiple vibration transmission plates 3 covers the sound area 41 on the display module 4.
  • the vibration support 2 The electromagnetic vibrator 1 is fixed on the other side of the, and the electromagnetic vibrator 1 is in contact with the vibration plate 3.
  • the electromagnetic vibrator 1 can be set to be in contact with each vibration plate 3 to achieve better sound transmission. Effect.
  • the sound-producing area 41 can be divided into a plurality of sub-areas, and each sub-area is correspondingly set with a vibration-transmitting sheet with a matching shape.
  • the shape of the vibration support 2 can be set as required, or set to match the shape of the sound area 41.
  • the vibration support 2 is a circle that matches the sound area 41 as an example.
  • 4 vibration transmission plates 3 are fixed on one side of the vibration support 2, namely vibration transmission plate 3a, vibration transmission plate 3b, vibration transmission plate 3c, vibration transmission plate 3d, and the circular area formed by the splicing of 4 vibration transmission plates 3 covers
  • the circular area formed by the vibrating bracket 2 may be larger than the circular area formed by the splicing of 4 vibration-transmitting plates 3, so as to leave an edge on the vibrating bracket 2 for fixing with the display module 4
  • the other side of the vibrating bracket 2 is formed with a vibrating chamber 21, the shape of the vibrating chamber 21 and the electromagnetic vibrator 21 match.
  • the hollow at the bottom of the vibration chamber 21 is in contact with a plurality of vibration plates 3 fixed on the vibration support 2.
  • the electromagnetic vibrator 1 can be respectively connected with the vibration plates 3a, The vibration transmission plate 3b, the vibration transmission plate 3c, and the vibration transmission plate 3d are in contact with each other.
  • at least one hollow area is also provided on the vibration support 2.
  • the vibration generated on the vibration support 2 then reduces the vibration interference between the vibration transmission plate 3a, the vibration transmission plate 3b, the vibration transmission plate 3c, and the vibration transmission plate 3d.
  • the screen sounding device further includes: a plurality of pairs of heating electrodes, the heating electrodes are fixed on the vibrating support, and each pair of heating electrodes is in one-to-one correspondence with and connected to the vibration transmission sheet.
  • the screen sounding device includes 4 pairs of heating The electrodes, which are heating electrode 4a, heating electrode 4b, heating electrode 4c, and heating electrode 4d, respectively correspond to the vibration transmission plate 3a, the vibration transmission plate 3b, the vibration transmission plate 3c, and the vibration transmission plate 3d.
  • the vibration transmission plate 3 connected to it is heated to heat the filling material in the vibration transmission plate 3 from the boss to a liquid state.
  • the filling material can be thermotropic liquid crystal.
  • the positive and negative electrodes of each pair of heating electrodes are respectively connected to the liquid crystal in the corresponding vibration transmission plate 3.
  • the heating electrode receives the start command
  • the positive and negative electrodes of the heating electrode are connected
  • a voltage difference can be formed in the solid liquid crystal, so that the fixed liquid crystal is heated to a liquid state.
  • the heating electrode 4a and the heating electrode 4d in FIG. 5 can be bidirectionally led out from the same pair of electrodes, which can heat the vibration transmission plate 3a and the vibration transmission plate 3d separately or at the same time.
  • a plurality of partitions are provided in the vibration transmission plate, a groove is formed between two adjacent partitions, the groove is filled with filling material, and the groove is sealed, please refer to Figure 6 and Figure 7,
  • a number of partitions 31 are provided inside the vibration transmission plate, and grooves 32 are formed between any two adjacent partitions 31.
  • the number of grooves 32 can be set according to the loudness of the electromagnetic vibrator 1.
  • the internal bracket formed by the groove 32 is used to support the vibration transmission plate 3 and improve the structural strength of the vibration transmission plate 3.
  • the inside of the groove 32 is used to infuse the filling material.
  • the soft film 33 wraps the internal support formed by the partition 31 and the groove 32, and seals each groove 32 to form a vibration transmission plate.
  • the shape of the groove 32 can be set according to requirements.
  • the shape of the groove 32 can be adjusted by adjusting the shape of the partition 31.
  • the groove width at both ends of the groove 32 can be set to be greater than the groove width in the middle of the groove 32.
  • the grooves 32 with upper and lower widths and narrow middles are formed, which can improve the sound transmission and blocking efficiency of the filling material as much as possible under the premise of ensuring the structural strength of the vibration transmission plate, so as to better orient the direction of the sound emitted by the electromagnetic vibrator 1 control.
  • the second embodiment of the present application provides a control method, which is applied to a processor of an electronic device.
  • the processor may be the main processor of the electronic device or a microcontroller with processing capability in the electronic device.
  • the electronic device is, for example, Mobile phones, tablet computers, etc.
  • electronic equipment includes the screen sounding device, display module and processor in the first embodiment, and the processor is connected to the screen sounding device and the display module.
  • Step 101 Detect the contact position between the user and the sound-producing area of the display module.
  • the processor needs to control the electromagnetic vibrator in the screen sound device to emit sound.
  • the processor first detects the contact position between the user and the sound area of the display module to preset Take answering a phone call as an example.
  • detecting the contact position of the user's ear with the display module can determine the user's posture, such as answering the left ear, answering the right ear, and the human ear near the top or middle of the display module.
  • the preset service can also be playing music, playing games, and so on.
  • the processor detects the contact position between the user and the sound area of the display module includes the following two types:
  • the display module is a capacitive touch screen.
  • the capacitive touch screen produces a capacitance change.
  • the processor obtains the capacitance change data of the capacitive touch screen, and then can obtain the user and the display module according to the capacitance change data.
  • the capacitance value of the capacitance that the capacitive touch screen contacts with the user will increase, so that the capacitance of the capacitive touch screen in contact with the user can be obtained by comparing the two capacitance values before and after the capacitive touch screen, and then it can be determined The contact position of the user with the sound-producing area of the capacitive touch screen.
  • the electronic device is also provided with a proximity sensor, which is fixed below the display module, so that when the user uses a preset service, the proximity sensor is activated, and the proximity sensor detects the sounding area between the user and the display module. Contact location.
  • the electronic device in this embodiment may also be provided with multiple screen sounding devices, such as two, which are respectively provided on the top and bottom of the display module of the electronic device, so that the selection can be made according to different service types. Enable one or more screen sound devices. For example, when the user uses the answering or dialing service, only the top screen sound device is enabled. When the user uses services such as listening to music, watching videos, etc., two screen sound devices are enabled at the same time. A stereo effect is formed to provide users with a better listening experience.
  • multiple screen sounding devices such as two, which are respectively provided on the top and bottom of the display module of the electronic device, so that the selection can be made according to different service types. Enable one or more screen sound devices. For example, when the user uses the answering or dialing service, only the top screen sound device is enabled. When the user uses services such as listening to music, watching videos, etc., two screen sound devices are enabled at the same time. A stereo effect is formed to provide users with a better listening experience.
  • Step 102 Determine, according to the contact position, an unrelated area that does not cover the contact position in the sound-producing area.
  • the sound-producing area may be divided into a plurality of sub-areas, and each sub-area corresponds to a vibration-transmitting sheet with a matching shape. At this time, the sub-areas that do not cover the contact position are all non-correlated areas.
  • Step 103 heating the filling material in the vibration transmission plate in the unrelated area from solid to liquid.
  • heating the vibration transmission plate corresponding to each sub-region included in the unrelated area, and the filling material in the heated vibration transmission plate is heated from being fixed to a liquid state.
  • the processor can use heating electrodes to heat the vibration transmission plate. Please refer to Figures 2 to 5.
  • the contact position between the user and the display module is the vibration transmission plate 3a and the vibration transmission plate 3c.
  • the vibration transmission plates in the relevant area are vibration transmission plate 3b and vibration transmission plate 3d.
  • the processor sends start instructions to the corresponding heating electrode 4b and heating electrode 4d respectively, so that the power supply in the electronic device heats the electrode 4b and the heating electrode 4d respectively. Through, a pressure difference is formed on the thermotropic liquid crystal in the vibration transmission plate 3b and the vibration transmission plate 3d, and the thermotropic liquid crystal is heated, so that the thermotropic liquid crystal in the vibration transmission plate 3b and the vibration transmission plate 3d is converted from solid to liquid.
  • the resistance of the vibration transmission plate 3b and the vibration transmission plate 3d to the sound wave emitted by the electromagnetic vibrator 1 is increased, the sound wave in the direction of the vibration transmission plate 3b and the vibration transmission plate 3d is reduced, and the direction of the vibration transmission plate 3a and the vibration transmission plate 3c is reduced.
  • the sound wave loudness above is greater than the sound wave loudness in the direction of the vibration plate 3b and the vibration plate 3d, and the direction of the sound wave is controlled to be the direction of the vibration plate 3a and the vibration plate 3c.
  • the processor after the processor detects that the user stops using the preset service, it can send a shutdown command to the heater electrode 4b and heater electrode 4d, and disconnect the power supply in the electronic device from the heater electrode 4b and heater electrode 4d, so that The vibration transmission plate 3b and the thermotropic liquid crystal in the vibration transmission plate 3d are cooled from a liquid state to a solid state.
  • the thermotropic liquid crystal in the vibration transmission sheet in this embodiment can also absorb heat inside the electronic device to convert it into a liquid state, which can assist the heat dissipation of the electronic device.
  • the third embodiment of the present application provides an electronic device. Please refer to FIG. 9.
  • the electronic device includes a memory 11, a processor 12, a program stored in the memory and running on the processor.
  • the screen sounding device 13 and the data bus 14 for realizing the connection and communication between the processor 11 and the screen sounding device 13 and the memory 12.
  • Step 101 Detect the contact position between the user and the sound-producing area of the display module.
  • the processor needs to control the electromagnetic vibrator in the screen sound device to emit sound.
  • the processor first detects the contact position between the user and the sound area of the display module to preset Take answering a phone call as an example.
  • detecting the contact position of the user's ear with the display module can determine the user's posture, such as answering the left ear, answering the right ear, and the human ear near the top or middle of the display module.
  • the preset service can also be playing music, playing games, and so on.
  • the processor detects the contact position between the user and the sound area of the display module includes the following two types:
  • the display module is a capacitive touch screen.
  • the capacitive touch screen produces a capacitance change.
  • the processor obtains the capacitance change data of the capacitive touch screen, and then can obtain the user and the display module according to the capacitance change data.
  • the capacitance value of the capacitance that the capacitive touch screen contacts with the user will increase, so that the capacitance of the capacitive touch screen in contact with the user can be obtained by comparing the two capacitance values before and after the capacitive touch screen, and then it can be determined The contact position of the user with the sound-producing area of the capacitive touch screen.
  • the electronic device is also provided with a proximity sensor, which is fixed below the display module, so that when the user uses a preset service, the proximity sensor is activated, and the proximity sensor detects the sounding area between the user and the display module. Contact location.
  • the electronic device in this embodiment may also be provided with multiple screen sounding devices, such as two, which are respectively provided on the top and bottom of the display module of the electronic device, so that the selection can be made according to different service types. Enable one or more screen sound devices. For example, when the user uses the answering or dialing service, only the top screen sound device is enabled. When the user uses services such as listening to music, watching videos, etc., two screen sound devices are enabled at the same time. A stereo effect is formed to provide users with a better listening experience.
  • multiple screen sounding devices such as two, which are respectively provided on the top and bottom of the display module of the electronic device, so that the selection can be made according to different service types. Enable one or more screen sound devices. For example, when the user uses the answering or dialing service, only the top screen sound device is enabled. When the user uses services such as listening to music, watching videos, etc., two screen sound devices are enabled at the same time. A stereo effect is formed to provide users with a better listening experience.
  • Step 102 Determine, according to the contact position, an unrelated area that does not cover the contact position in the sound-producing area.
  • the sound-producing area can be divided into multiple sub-areas, and each sub-area corresponds to a vibration-transmitting sheet with a matching shape. At this time, the sub-areas that do not cover the contact position are all non-correlated areas.
  • Step 103 heating the filling material in the vibration transmission plate in the unrelated area from solid to liquid.
  • heating the vibration transmission plate corresponding to each sub-region included in the unrelated area, and the filling material in the heated vibration transmission plate is heated from being fixed to a liquid state.
  • the processor can use heating electrodes to heat the vibration transmission plate. Please refer to Figures 2 to 5.
  • the contact position between the user and the display module is the vibration transmission plate 3a and the vibration transmission plate 3c.
  • the vibration transmission plates in the relevant area are vibration transmission plate 3b and vibration transmission plate 3d.
  • the processor sends start instructions to the corresponding heating electrode 4b and heating electrode 4d respectively, so that the power supply in the electronic device heats the electrode 4b and the heating electrode 4d respectively. Through, a pressure difference is formed on the thermotropic liquid crystal in the vibration transmission plate 3b and the vibration transmission plate 3d, and the thermotropic liquid crystal is heated, so that the thermotropic liquid crystal in the vibration transmission plate 3b and the vibration transmission plate 3d is converted from solid to liquid.
  • the resistance of the vibration transmission plate 3b and the vibration transmission plate 3d to the sound wave emitted by the electromagnetic vibrator 1 is increased, the sound wave in the direction of the vibration transmission plate 3b and the vibration transmission plate 3d is reduced, and the direction of the vibration transmission plate 3a and the vibration transmission plate 3c is reduced.
  • the sound wave loudness above is greater than the sound wave loudness in the direction of the vibration plate 3b and the vibration plate 3d, and the direction of the sound wave is controlled to be the direction of the vibration plate 3a and the vibration plate 3c.
  • the processor after the processor detects that the user stops using the preset service, it can send a shutdown command to the heater electrode 4b and heater electrode 4d, and disconnect the power supply in the electronic device from the heater electrode 4b and heater electrode 4d, so that The vibration transmission plate 3b and the thermotropic liquid crystal in the vibration transmission plate 3d are cooled from a liquid state to a solid state.
  • the thermotropic liquid crystal in the vibration transmission sheet in this embodiment can also absorb heat inside the electronic device to convert it into a liquid state, which can assist the heat dissipation of the electronic device.
  • a controller may also be separately integrated in the screen sounding device, and the controller is used to implement the above-mentioned method.
  • the fourth embodiment of the present application provides a storage medium for computer-readable storage.
  • the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the foregoing method. step.
  • the embodiment of the application proposes a screen sounding device, control method, electronic device, and storage medium, which can realize that when the mobile terminal is in the split-screen mode, the user can use one of the screens as the control terminal to control the screen on the other screen.
  • the function of the application A person of ordinary skill in the art can understand that all or some of the steps, systems, and functional modules/units in the device disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may consist of several physical components.
  • the components are executed cooperatively.
  • Certain physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • a processor such as a central processing unit, a digital signal processor, or a microprocessor
  • Such software may be distributed on a computer-readable medium, and the computer-readable medium may include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium).
  • Computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other storage technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer.
  • a communication medium usually contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium. .

Abstract

一种屏幕发声装置、控制方法、电子设备以及存储介质。屏幕发声装置，应用于包括显示模组的电子设备，屏幕发声装置包括：电磁振动器(1)、多个传振片(3)，多个传振片(3)固定在显示模组的下方，且覆盖显示模组的发声区域，电磁振动器(1)固定在传振片(3)上，每个传振片(3)中设置有填充材料；每个传振片(3)在被加热时，传振片(3)中的填充材料由固态被加热至液态。

Description

屏幕发声装置、控制方法、电子设备以及存储介质
相关申请的交叉引用
本申请基于申请号为202010453449.9、申请日为2020年5月25日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及屏幕发声技术领域，尤其涉及一种屏幕发声装置、控制方法、电子设备以及存储介质。
背景技术
随着屏幕发声技术在手机等电子设备上的应用与普及，电磁振动器(Electro-Magnetic Articulography，简称EMA)器件的应用也越来越广泛。目前，直驱式的EMA器件为发展前景较好的EMA器件，其可以作为无孔听筒及线性马达使用，主要应用于柔性OLED或后盖扬声器，优点为漏音小，响度大，听感接近普通扬声器，但是存在私密性较差的问题，如果全局降低直驱式的EMA器件的响度，则会影响用户日常的使用体验。
发明内容
本申请实施例提供了一种屏幕发声装置，应用于包括显示模组的电子设备，屏幕发声装置包括：电磁振动器、多个传振片，多个传振片固定在显示模组的下方，且覆盖显示模组的发声区域，电磁振动器固定在传振片上，每个传振片中设置有填充材料；每个传振片在被加热时，传振片中的填充材料由固态被加热至液态。
本申请实施例还提出了一种控制方法，应用于包括显示模组的电子设备，电子设备还包括上述屏幕发声装置，方法包括：检测用户与显示模组的发声区域的接触位置；根据接触位置，确定发声区域中未覆盖接触位置的非相关区域；将非相关区域内传振片中的填充材料由固态加热至液态。
本申请实施例还提出了一种电子设备，设备包括存储器、处理器、存储在存储器上并可在处理器上运行的程序、上述屏幕发声装置以及用于实现处理器与存储器以及屏幕发声装置之间的连接通信的数据总线，程序被处理器执行时实现如上述的控制方法的步骤。
本申请实施例还提出了一种存储介质，用于计算机可读存储，该存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如上述的控制方法的步骤。
附图说明
图1是本申请第一实施例的屏幕发声装置所在的电子设备正面的示意图；
图2是本申请第一实施例的屏幕发声装置所在的电子设备背面的示意图；
图3是本申请第一实施例的屏幕发声装置一面的示意图；
图4是本申请第一实施例的屏幕发声装置另一面的示意图；
图5是本申请第一实施例的包括多对加热电极的屏幕发声装置的示意图；
图6是本申请第一实施例的传振片的剖面图；
图7是图6中传振片的剖面放大图；
图8是本申请第二实施例的控制方法的具体流程图；
图9是本申请第三实施例的电子设备的示意图。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特有的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
本申请第一实施例提供了一种屏幕发声装置，应用于包括显示模组的电子设备，显示模组可以为电子设备的显示屏，电子设备例如为手机、平板电脑等，该屏幕发声装置固定设置在显示模组的下方，显示模组的下方即为显示模组的背面，位于电子设备的内部，显示模组的上方即为显示模组的正面，用于向用户展示图像等。
本实施例中，屏幕发声装置包括：电磁振动器、多个传振片，多个传振片固定在显示模组的下方，且覆盖显示模组的发声区域，电磁振动器固定在传振片上，每个传振片中设置有填充材料；每个传振片在被加热时，传振片中的填充材料由固态被加热至液态。
相对于本领域一些情形而言，本申请提供的屏幕发声装置中，多个传振片固定在显示模组的下方，且覆盖显示模组的发声区域，电磁振动器固定在传振片上，每个传振片在被加热时，传振片中的填充材料由固态被加热至液态，声波在固体中的传播效率高于在液体中的传播效率，从而声波在填充材料为液态的传振片中受到的阻力增大，使得声音在该方向上的响度小于填充材料为固态的传振片；由此可以通过对传振片中填充材料的状态控制，来对电磁振动器发出的声波的方向进行定向控制，使得电磁振动器的发声更具方向性，在一定程度上减小了声波的扩散，提升了用户使用时的私密性，并且成本较小。
下面结合屏幕发声装置的实现细节进行详细说明，仅为示例性说明，并非实现本方案的必须。
电磁振动器可以为直驱式的电磁振动器，请参考图1至图4，屏幕发声装置包括电磁振动器1、振动支架2以及多个传振片3，多个传振片3通过振动支架2在显示模组4的下方，电磁振动器1通过振动支架2固定在传振片3上，电磁振动器1在用户使用电子设备的预设业务时发出声音，例如接听电话、播放音乐、玩游戏等。在一个例子中，电磁振动器1与各传振片3相接触。
电子设备的显示模组4上设有至少一个发声区域41(图中以一个为例)，每个发声区 域41对应设置有一个屏幕发声装置，发声区域41的形状可以按照需求来设置，图1中以发声区域41的形状为圆形为例，振动支架2的一面固定有多个传振片3，振动支架2固定在显示模组4的下方，即多个传振片3通过振动支架2固定在显示模组4的下方，振动支架2固定有传振片3的一面朝向显示模组4，多个传振片3拼接形成的区域覆盖显示模组4上的发声区域41，振动支架2的另一面固定有电磁振动器1，电磁振动器1与传振片3相接触，在一些示例中，可以设置电磁振动器1分别与每个传振片3相接触，以实现更好声音传动效果。其中，可以将发声区域41划分为多个子区域，每个子区域对应设定形状匹配的传振片。
本实施例中，振动支架2的形状可以按需求设置，或者设置其与发声区域41的形状相匹配，图中以振动支架2为与发声区域41相匹配的圆形为例，请参考图3，振动支架2的一面固定有4个传振片3，分别为传振片3a、传振片3b、传振片3c、传振片3d，4个传振片3拼接形成的圆形区域覆盖显示模组4的发声区域41，振动支架2形成的圆形区域可以大于4个传振片3拼接形成的圆形区域，以在振动支架2上留出用于与显示模组4固定的边缘部分；请参考图4，振动支架2的另一面形成有振动仓21，振动仓21与电磁振动器21的形状匹配，图中以振动仓21为长方体为例，振动仓21的底部镂空，从而电磁振动器1固定在振动仓21中时，通过振动仓21底部的镂空与固定在振动支架2上的多个传振片3相接触，图中电磁振动器1可以分别与传振片3a、传振片3b、传振片3c、传振片3d相接触。在一个例子中，振动支架2上还设置有至少一个镂空区域，图中振动支架2上设置有4个镂空区域，分别为2a、2b、2c、2d，从而能够减小各传振片3在振动支架2上产生的振动，继而减小了传振片3a、传振片3b、传振片3c、传振片3d相互之间的振动干扰。
本实施例中，屏幕发声装置还包括：多对加热电极，加热电极固定在振动支架上，每对加热电极与传振片一一对应且连接，请参考图5，屏幕发声装置包括4对加热电极，分别为加热电极4a、加热电极4b、加热电极4c、加热电极4d，分别与传振片3a、传振片3b、传振片3c、传振片3d一一对应，各加热电极能够在接收到启动指令时，对与其连接的传振片3进行加热，以将该传振片3中的填充材料由凸台加热至液态。其中，填充材料可以为热致液晶，此时每对加热电极的正极和负极分别连接于对应的传振片3中的液晶，当加热电极接收到启动指令时，加热电极的正极和负极接入电源后，能够在固态的液晶中形成电压差，使得固定的液晶被加热至液态。在一个例子中，图5中的加热电极4a与加热电极4d可以是由同一对电极双向引出，能够对传振片3a于传振片3d分别加热，或者同时加热。
在一个例子中，传振片中设置有多个隔断，相邻的两个隔断之间形成一个凹槽，凹槽中填充有填充材料，且凹槽被密封，请参考图6与图7，传振片的内部设置有多个隔断31，任意相邻的两个隔断31之间形成有凹槽32，凹槽32的数量可以根据电磁振动器1的响度来设定，由隔断31与凹槽32形成的内部支架用于对传振片3起到支撑作用，提升了传振 片3的结构强度，凹槽32内部用于灌注填充材料，在凹槽32中灌注填充材料完毕后，利用软包膜33将由隔断31与凹槽32形成的内部支架进行包裹，对各凹槽32的密封，形成了传振片，若通过加热电极对传振片进行加热，则该加热电极的正极与负极分别连接传振片的顶部与底部即可。其中，凹槽32的形状可以按照需求来设定，通过调整隔断31的形状便可以调整凹槽32的形状，例如，可以设置凹槽32两端的槽宽大于凹槽32中部的槽宽，从而形成了上下宽中间窄的凹槽32，能够确保传振片结构强度的前提下，尽可能的提升填充材料的传声与阻挡效率，以更好的对电磁振动器1发出声音的方向进行定向控制。
本申请第二实施例提供了一种控制方法，应用于电子设备的处理器，该处理器可以为电子设备的主处理器，也可以电子设备中具有处理能力的微控制器，电子设备例如为手机、平板电脑等，电子设备包括第一实施例中的屏幕发声装置、显示模组与处理器，处理器连接于屏幕发声装置与显示模组。
本实施例的控制方法的具体流程如图8所示。
步骤101，检测用户与显示模组的发声区域的接触位置。
具体而言，当用户使用电子设备中的预设业务时，处理器需要控制屏幕发声装置中的电磁振动器发出声音，处理器先检测用户与显示模组的发声区域的接触位置，以预设业务为接听电话为例，此时检测用户耳朵与显示模组的接触位置，能够判断出用户的使用姿势，例如左耳接听、右耳接听、人耳靠近显示模组顶部或中间位置等。其中，预设业务还可以为播放音乐、玩游戏等。
本实施例中，处理器检测用户与显示模组的发声区域的接触位置包括以下两种：
第一，显示模组为电容触摸屏，当用户与电容触摸屏接触时，使得电容触摸屏产生电容变化，此时处理器获取电容触摸屏的电容变化数据，继而能够根据电容变化数据，获取用户与显示模组的发声区域的接触位置；具体的，电容触摸屏与用户接触的电容的电容值会增大，从而通过电容触摸屏前后两次电容值的对比，获取电容触摸屏中与用户接触的电容，继而能够确定出用户与电容触摸屏的发声区域的接触位置。
第二，电子设备中还设置有接近传感器，接近传感器固定在显示模组的下方，从而在用户使用预设业务时，启动接近传感器，并通过该接近传感器检测用户与显示模组的发声区域的接触位置。
需要说明的是，本实施例中电子设备中还可以设置有多个屏幕发声装置，例如为两个，分别设置在电子设备的显示模组的顶部与底部，从而能够根据不同的业务类型来选择启用一个或多个屏幕发声装置，例如，当用户使用接听或拨打电话业务时，仅启用顶部的屏幕发声装置，当用户使用听音乐、看视频等业务时，同时启用两个屏幕发声装置，以形成立体声效果，给用户提供更好的听感体验。
步骤102，根据接触位置，确定发声区域中未覆盖接触位置的非相关区域。
具体而言，发声区域可以划分为多个子区域，每个子区域对应设定形状匹配的传振片， 此时未覆盖接触位置的子区域均为非相关区域。
步骤103，将非相关区域内传振片中的填充材料由固态加热至液态。
具体而言，对非相关区域包括的各子区域对应的传振片进行加热，被加热的传振片中的填充材料由固定被加热至液态。
处理器对传振片的加热方式可以为利用加热电极对传振片进行加热，请参考图2至图5，以用户与显示模组的接触位置为传振片3a与传振片3c，非相关区域内的传振片为传振片3b与传振片3d，处理器向对应的加热电极4b与加热电极4d分别发送启动指令，使得电子设备中的电源分别加热电极4b以及加热电极4d接通，在传振片3b与传振片3d中的热致液晶上形成压差，对热致液晶进行了加热，使得传振片3b以及传振片3d中的热致液晶由固态转换为液态，从而传振片3b以及传振片3d对电磁振动器1发出的声波的阻力增大，传振片3b以及传振片3d方向上的声波减小，传振片3a与传振片3c方向上的声波响度大于传振片3b以及传振片3d方向上的声波响度，控制声波方向为传振片3a与传振片3c方向。
本实施例中，处理器在检测到用户停止使用预设业务后，可以向加热电极4b与加热电极4d发送关闭指令，断开电子设备中的电源与加热电极4b以及加热电极4d的连接，使得传振片3b以及传振片3d中的热致液晶由液态冷却为固态。另外，本实施例中的传振片中的热致液晶还可以吸收电子设备内部的热量来转换为液态，能够辅助电子设备的散热。
本申请第三实施例提供了一种电子设备，请参考图9，该电子设备包括存储器11、处理器12、存储在该存储器上并可在该处理器上运行的程序、第一实施例中屏幕发声装置13以及用于实现处理器11与屏幕发声装置13以及存储器12之间的连接通信的数据总线14。该程序被该处理器执行时，以实现以下如图8所示的具体步骤：
步骤101，检测用户与显示模组的发声区域的接触位置。
具体而言，当用户使用电子设备中的预设业务时，处理器需要控制屏幕发声装置中的电磁振动器发出声音，处理器先检测用户与显示模组的发声区域的接触位置，以预设业务为接听电话为例，此时检测用户耳朵与显示模组的接触位置，能够判断出用户的使用姿势，例如左耳接听、右耳接听、人耳靠近显示模组顶部或中间位置等。其中，预设业务还可以为播放音乐、玩游戏等。
本实施例中，处理器检测用户与显示模组的发声区域的接触位置包括以下两种：
第一，显示模组为电容触摸屏，当用户与电容触摸屏接触时，使得电容触摸屏产生电容变化，此时处理器获取电容触摸屏的电容变化数据，继而能够根据电容变化数据，获取用户与显示模组的发声区域的接触位置；具体的，电容触摸屏与用户接触的电容的电容值会增大，从而通过电容触摸屏前后两次电容值的对比，获取电容触摸屏中与用户接触的电容，继而能够确定出用户与电容触摸屏的发声区域的接触位置。
第二，电子设备中还设置有接近传感器，接近传感器固定在显示模组的下方，从而在 用户使用预设业务时，启动接近传感器，并通过该接近传感器检测用户与显示模组的发声区域的接触位置。
需要说明的是，本实施例中电子设备中还可以设置有多个屏幕发声装置，例如为两个，分别设置在电子设备的显示模组的顶部与底部，从而能够根据不同的业务类型来选择启用一个或多个屏幕发声装置，例如，当用户使用接听或拨打电话业务时，仅启用顶部的屏幕发声装置，当用户使用听音乐、看视频等业务时，同时启用两个屏幕发声装置，以形成立体声效果，给用户提供更好的听感体验。
步骤102，根据接触位置，确定发声区域中未覆盖接触位置的非相关区域。
具体而言，发声区域可以划分为多个子区域，每个子区域对应设定形状匹配的传振片，此时未覆盖接触位置的子区域均为非相关区域。
步骤103，将非相关区域内传振片中的填充材料由固态加热至液态。
具体而言，对非相关区域包括的各子区域对应的传振片进行加热，被加热的传振片中的填充材料由固定被加热至液态。
处理器对传振片的加热方式可以为利用加热电极对传振片进行加热，请参考图2至图5，以用户与显示模组的接触位置为传振片3a与传振片3c，非相关区域内的传振片为传振片3b与传振片3d，处理器向对应的加热电极4b与加热电极4d分别发送启动指令，使得电子设备中的电源分别加热电极4b以及加热电极4d接通，在传振片3b与传振片3d中的热致液晶上形成压差，对热致液晶进行了加热，使得传振片3b以及传振片3d中的热致液晶由固态转换为液态，从而传振片3b以及传振片3d对电磁振动器1发出的声波的阻力增大，传振片3b以及传振片3d方向上的声波减小，传振片3a与传振片3c方向上的声波响度大于传振片3b以及传振片3d方向上的声波响度，控制声波方向为传振片3a与传振片3c方向。
本实施例中，处理器在检测到用户停止使用预设业务后，可以向加热电极4b与加热电极4d发送关闭指令，断开电子设备中的电源与加热电极4b以及加热电极4d的连接，使得传振片3b以及传振片3d中的热致液晶由液态冷却为固态。另外，本实施例中的传振片中的热致液晶还可以吸收电子设备内部的热量来转换为液态，能够辅助电子设备的散热。
需要说明的是，本实施例中也可以在屏幕发声装置中单独集成一个控制器，该控制器用于实现上述的方法。
本申请第四实施例提供了一种存储介质，用于计算机可读存储，存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现前述方法的步骤。
本申请实施例提出了一种屏幕发声装置、控制方法、电子设备和存储介质，能够在实现当移动终端处于分屏模式下，用户可使用其中的一个屏幕作为控制端，操控另一个屏幕上的应用的功能。本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上参照附图说明了本申请的一些实施例，并非因此局限本申请的权利范围。本领域技术人员不脱离本申请的范围和实质内所作的任何修改、等同替换和改进，均应在本申请的权利范围之内。

Claims (12)

  1. 一种屏幕发声装置，应用于包括显示模组的电子设备，所述屏幕发声装置包括：电磁振动器、多个传振片，所述多个传振片固定在所述显示模组的下方，且覆盖所述显示模组的发声区域，所述电磁振动器固定在所述传振片上，每个所述传振片中设置有填充材料；
    每个所述传振片在被加热时，所述传振片中的所述填充材料由固态被加热至液态。
  2. 根据权利要求1所述的屏幕发声装置，所述屏幕发声装置还包括：振动支架；
    所述振动支架的一面固定有多个所述传振片，且多个所述传振片通过所述振动支架固定在所述显示模组的下方；所述振动支架的另一面固定有所述电磁振动器，且所述电磁振动器与所述传振片相接触。
  3. 根据权利要求2所述的屏幕发声装置，其中，所述振动支架上设置至少一个镂空区域。
  4. 根据权利要求2所述的屏幕发声装置，其中，所述振动支架上设置有振动仓，所述振动仓的底部镂空，所述电磁振动器固定在所述振动仓中，且与所述传振片相接触。
  5. 根据权利要求1所述的屏幕发声装置，其中，所述传振片中设置有多个隔断，相邻的两个隔断之间形成一个凹槽，所述凹槽中填充有所述填充材料，且所述凹槽被密封。
  6. 根据权利要求5所述的屏幕发声装置，其中，所述凹槽两端的槽宽大于所述凹槽中部的槽宽。
  7. 根据权利要求2所述的屏幕发声装置，其中，所述屏幕发声装置还包括：多对加热电极，所述加热电极固定在所述振动支架上，每对所述加热电极与所述传振片一一对应且连接；
    所述加热电极用于在接收到启动指令时，将对应的所述传振片中的填充材料由固态加热至液态。
  8. 根据权利要求1至7中任一项所述的屏幕发声装置，其中，所述填充材料为热致液晶。
  9. 一种控制方法，应用于包括显示模组的电子设备，所述电子设备还包括权利要求1至8中任一项所述屏幕发声装置，所述方法包括：
    检测用户与所述显示模组的发声区域的接触位置；
    根据所述接触位置，确定所述发声区域中未覆盖所述接触位置的非相关区域；
    将所述非相关区域内所述传振片中的所述填充材料由固态加热至液态。
  10. 根据权利要求9所述的控制方法，其中，所述显示模组为电容触摸屏；
    所述检测用户与所述显示模组的发声区域的接触位置，包括：
    在用户与所述电容触摸屏接触时，获取所述电容触摸屏的电容变化数据；
    根据所述电容变化数据，获取用户与所述电容触摸屏的发声区域的接触位置。
  11. 一种电子设备，包括存储器、处理器、存储在所述存储器上并可在所述处理器上 运行的程序、权利要求1至8中任一项所述屏幕发声装置以及用于实现所述处理器与所述存储器以及所述屏幕发声装置之间的连接通信的数据总线，所述程序被所述处理器执行时实现如权利要求9或10所述的控制方法的步骤。
  12. 一种存储介质，用于计算机可读存储，存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如权利要求9或10所述的控制方法的步骤。
PCT/CN2021/095816 2020-05-25 2021-05-25 屏幕发声装置、控制方法、电子设备以及存储介质 WO2021238919A1 (zh)

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