CN113726924A - Screen sounding device, control method and electronic equipment - Google Patents
Screen sounding device, control method and electronic equipment Download PDFInfo
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- CN113726924A CN113726924A CN202010453449.9A CN202010453449A CN113726924A CN 113726924 A CN113726924 A CN 113726924A CN 202010453449 A CN202010453449 A CN 202010453449A CN 113726924 A CN113726924 A CN 113726924A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 80
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 42
- 239000004974 Thermotropic liquid crystal Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000001755 vocal effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000035807 sensation Effects 0.000 description 1
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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
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- 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
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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
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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
-
- 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
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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
- H04M1/03—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
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- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Telephone Function (AREA)
- User Interface Of Digital Computer (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a screen sounding device, a control method and electronic equipment, and belongs to the technical field of screen sounding. Screen sound generating mechanism is applied to the electronic equipment including display module assembly, and screen sound generating mechanism includes: the display module comprises an electromagnetic vibrator and a plurality of vibration transmission sheets, wherein the plurality of vibration transmission sheets are fixed below the display module and cover the sound production area of the display module; when each vibration transfer piece is heated, the filling material in the vibration transfer piece is heated from a solid state to a liquid state. According to the technical scheme, the direction of the sound wave emitted by the electromagnetic vibrator can be directionally controlled by controlling the state of the filling material in the vibration sheet, so that the sound production of the electromagnetic vibrator is more directional, the use experience of a user is improved, and the cost is lower.
Description
Technical Field
The invention relates to the technical field of screen sounding, in particular to a screen sounding device, a control method and electronic equipment.
Background
With the application and popularization of screen sound technology in electronic devices such as mobile phones, the application of electromagnetic-mechanical oscillator (EMA) devices is becoming more and more widespread. At present, the direct-drive EMA device is an EMA device with a good development prospect, can be used as a nonporous receiver and a linear motor, is mainly applied to a flexible OLED (organic light emitting diode) or a rear cover loudspeaker, has the advantages of small sound leakage and large loudness, and is close to a common loudspeaker in listening sensation, but has the problem of poor privacy, and if the loudness of the direct-drive EMA device is reduced globally, the daily use experience of a user can be influenced.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a screen sounding device, a control method and electronic equipment, and aims to realize the function that when a mobile terminal is in a split-screen mode, a user can use one screen as a control terminal to control an application on the other screen.
In order to achieve the above object, an embodiment of the present invention provides a screen sound generating device, which is applied to an electronic device including a display module, and the screen sound generating device includes: the display module comprises an electromagnetic vibrator and a plurality of vibration transmission sheets, wherein the plurality of vibration transmission sheets are fixed below the display module and cover the sound production area of the display module; when each vibration transfer piece is heated, the filling material in the vibration transfer piece is heated from a solid state to a liquid state.
In order to achieve the above object, an embodiment of the present invention further provides a control method, which is applied to an electronic device including a display module, where the electronic device further includes the screen sound generating apparatus, and the method includes: detecting the contact position of a user and a sounding area of the display module; according to the contact position, determining a non-relevant area which does not cover the contact position in the sounding area; the filling material in the vibration conduction sheet in the irrelevant area is heated from a solid state to a liquid state.
In order to achieve the above object, an embodiment of the present invention further provides an electronic device, where the device includes a memory, a processor, a program stored in the memory and running on the processor, the screen sound generating device, and a data bus for implementing connection communication between the processor and the memory and the screen sound generating device, and the program implements the steps of the control method when executed by the processor.
In the screen sounding device provided by the invention, the plurality of vibration transmission sheets are fixed below the display module and cover the sounding area of the display module, the electromagnetic vibrator is fixed on the vibration transmission sheets, when each vibration transmission sheet is heated, the filling material in the vibration transmission sheet is heated from a solid state to a liquid state, and the transmission efficiency of sound waves in the solid state is higher than that in the liquid state, so that the resistance of the sound waves in the vibration transmission sheet with the filling material in the liquid state is increased, and the loudness of sound in the direction is smaller than that of the vibration transmission sheet with the filling material in the solid state; therefore, the direction of sound waves emitted by the electromagnetic vibrator can be directionally controlled by controlling the state of the filling material in the vibration sheet, so that the sound production of the electromagnetic vibrator is more directional, the diffusion of the sound waves is reduced to a certain extent, the privacy of a user during use is improved, and the cost is lower.
In addition, the screen sound emission device further includes: a vibration bracket; a plurality of vibration transmission sheets are fixed on one surface of the vibration support, and the plurality of vibration transmission sheets are fixed below the display module through the vibration support; an electromagnetic vibrator is fixed on the other side of the vibration support and is in contact with the vibration transmission sheet.
In addition, at least one hollow-out area is arranged on the vibration support.
In addition, a vibration bin is arranged on the vibration support, the bottom of the vibration bin is hollow, and the electromagnetic vibrator is fixed in the vibration bin and is in contact with the vibration transmission piece.
In addition, a plurality of partitions are arranged in the vibration transmission piece, a groove is formed between every two adjacent partitions, filling materials are filled in the groove, and the groove is sealed.
In addition, the groove width at the two ends of the groove is larger than the groove width in the middle of the groove.
In addition, the screen sound emission device further includes: the heating electrodes are fixed on the vibration support, and each pair of heating electrodes corresponds to and is connected with the vibration transmission sheet one by one; the heating electrode is used for heating the filling material in the corresponding vibration transmission piece from a solid state to a liquid state when receiving a starting instruction.
In addition, the filling material is thermotropic liquid crystal.
Drawings
Fig. 1 is a schematic diagram of the front side of an electronic device where a screen sound generating device according to a first embodiment of the present invention is located;
fig. 2 is a schematic diagram of the back of an electronic device where a screen sound generating device according to a first embodiment of the present invention is located;
FIG. 3 is a schematic view of one side of a screen sound generator of a first embodiment of the present invention;
FIG. 4 is a schematic view of another aspect of the screen sound generating apparatus of the first embodiment of the present invention;
FIG. 5 is a schematic view of a screen sound generator including multiple pairs of heater electrodes according to a first embodiment of the present invention;
FIG. 6 is a cross-sectional view of a vibration-transmitting plate according to a first embodiment of the present invention;
FIG. 7 is an enlarged cross-sectional view of the vibration plate of FIG. 6;
fig. 8 is a detailed flowchart of a control method of the second embodiment of the present invention;
fig. 9 is a schematic view of an electronic apparatus of a third embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "part", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no peculiar meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The invention provides a screen sounding device, which is applied to electronic equipment comprising a display module, wherein the display module can be a display screen of the electronic equipment, the electronic equipment is a mobile phone, a tablet personal computer and the like, the screen sounding device is fixedly arranged below the display module, the lower part of the display module is the back surface of the display module and is positioned in the electronic equipment, and the upper part of the display module is the front surface of the display module and is used for displaying images and the like for a user.
In this embodiment, the screen sound generating apparatus includes: the display module comprises an electromagnetic vibrator and a plurality of vibration transmission sheets, wherein the plurality of vibration transmission sheets are fixed below the display module and cover the sound production area of the display module; when each vibration transfer piece is heated, the filling material in the vibration transfer piece is heated from a solid state to a liquid state.
Compared with the prior art, in the screen sound production device provided by the invention, the plurality of vibration transmission pieces are fixed below the display module and cover the sound production area of the display module, the electromagnetic vibrator is fixed on the vibration transmission pieces, when each vibration transmission piece is heated, the filling material in the vibration transmission piece is heated to be in a liquid state from a solid state, and the transmission efficiency of sound waves in the solid state is higher than that in the liquid state, so that the resistance of the sound waves in the vibration transmission piece with the liquid filling material is increased, and the loudness of the sound in the direction is smaller than that of the vibration transmission piece with the solid filling material; therefore, the direction of sound waves emitted by the electromagnetic vibrator can be directionally controlled by controlling the state of the filling material in the vibration sheet, so that the sound production of the electromagnetic vibrator is more directional, the diffusion of the sound waves is reduced to a certain extent, the privacy of a user during use is improved, and the cost is lower.
The following detailed description is provided in conjunction with the implementation details of the screen sound device, and is only an exemplary illustration, and is not necessary to implement the present solution.
The electromagnetic vibrator may be a direct-drive electromagnetic vibrator, please refer to fig. 1 to 4, the screen sound generating device includes an electromagnetic vibrator 1, a vibration bracket 2, and a plurality of vibration transmitting sheets 3, the plurality of vibration transmitting sheets 3 are below the display module 4 through the vibration bracket 2, the electromagnetic vibrator 1 is fixed on the vibration transmitting sheets 3 through the vibration bracket 2, and the electromagnetic vibrator 1 generates sound when a user uses a preset service of the electronic device, such as answering a phone call, playing music, playing games, and the like. In one example, the electromagnetic vibrator 1 is in contact with each vibration transmitting piece 3.
At least one sounding area 41 (one is taken as an example in the figure) is arranged on a display module 4 of the electronic device, a screen sounding device is correspondingly arranged on each sounding area 41, the shape of each sounding area 41 can be set according to requirements, the sounding area 41 is taken as an example in figure 1, the shape of the sounding area 41 is circular, one surface of a vibration support 2 is fixed with a plurality of vibration transmission sheets 3, the vibration support 2 is fixed below the display module 4, namely the vibration transmission sheets 3 are fixed below the display module 4 through the vibration support 2, one surface of the vibration support 2, which is fixed with the vibration transmission sheets 3, faces the display module 4, the area formed by splicing the vibration transmission sheets 3 covers the sounding area 41 on the display module 4, the other surface of the vibration support 2 is fixed with an electromagnetic vibrator 1, the electromagnetic vibrator 1 is in contact with the vibration transmission sheets 3, exemplarily, the electromagnetic vibrator 1 can be arranged to be respectively in contact with each vibration transmission sheet 3, to achieve a better sound transmission effect. The sound emission area 41 may be divided into a plurality of sub-areas, and each sub-area corresponds to a vibration transmission sheet with a matching shape.
In this embodiment, the shape of the vibration bracket 2 may be set as required, or the shape of the vibration bracket 2 is set to match the shape of the sound generating area 41, in the figure, taking the vibration bracket 2 as a circle matching the sound generating area 41 as an example, please refer to fig. 3, one surface of the vibration bracket 2 is fixed with 4 vibration transmission pieces 3, which are respectively a vibration transmission piece 3a, a vibration transmission piece 3b, a vibration transmission piece 3c, a vibration transmission piece 3d, and a circular area formed by splicing 4 vibration transmission pieces 3 covers the sound generating area 41 of the display module 4, and the circular area formed by the vibration bracket 2 may be larger than the circular area formed by splicing 4 vibration transmission pieces 3, so as to leave an edge part for fixing with the display module 4 on the vibration bracket 2; referring to fig. 4, a vibration bin 21 is formed on the other side of the vibration bracket 2, the vibration bin 21 is matched with the electromagnetic vibrator 1 in shape, the vibration bin 1 is taken as a cuboid in the drawing as an example, and the bottom of the vibration bin 1 is hollowed out, so that when the electromagnetic vibrator 1 is fixed in the vibration bin 1, the electromagnetic vibrator 1 is in contact with a plurality of vibration transmission pieces 3 fixed on the vibration bracket 2 through the hollowed out bottom of the vibration bin 1, and in the drawing, the electromagnetic vibrator 1 can be in contact with a vibration transmission piece 3a, a vibration transmission piece 3b, a vibration transmission piece 3c and a vibration transmission piece 3d respectively. In an example, the vibration support 2 is further provided with at least one hollowed-out area, and in the figure, the vibration support 2 is provided with 4 hollowed-out areas 2a, 2b, 2c, and 2d, so that the vibration generated by each vibration transmission piece 3 on the vibration support 2 can be reduced, and then the vibration interference among the vibration transmission pieces 3a, 3b, 3c, and 3d is reduced.
In this embodiment, the screen sound generating apparatus further includes: referring to fig. 5, the screen sound generating device includes 4 pairs of heating electrodes, which are respectively a heating electrode 4a, a heating electrode 4b, a heating electrode 4c, and a heating electrode 4d, and which are respectively in one-to-one correspondence with the vibration transmitting sheet 3a, the vibration transmitting sheet 3b, the vibration transmitting sheet 3c, and the vibration transmitting sheet 3d, and each heating electrode can heat the vibration transmitting sheet 3 connected thereto when receiving a start instruction, so as to heat the filling material in the vibration transmitting sheet 3 to a liquid state by the boss. The filling material may be thermotropic liquid crystal, at this time, the positive electrode and the negative electrode of each pair of heating electrodes are respectively connected to the liquid crystal in the corresponding vibration transmission plate 3, and when the heating electrodes receive a start instruction, after the positive electrode and the negative electrode of the heating electrodes are connected to a power supply, a voltage difference can be formed in the solid liquid crystal, so that the fixed liquid crystal is heated to a liquid state. In one example, the heating electrode 4a and the heating electrode 4d in fig. 5 may be led out from the same pair of electrodes in both directions, and the vibration transmitting sheet 3a and the vibration transmitting sheet 3d may be heated separately or simultaneously.
In one example, the vibration transmission sheet is provided with a plurality of partitions, a groove is formed between two adjacent partitions, the groove is filled with filling materials, and the grooves are sealed, please refer to fig. 6 and 7, a plurality of partitions 31 are arranged inside the vibration transmission plate, a groove 32 is formed between any two adjacent partitions 31, the number of the grooves 32 can be set according to the loudness of the electromagnetic vibrator 1, an internal bracket formed by the partitions 31 and the grooves 32 is used for supporting the vibration transmission plate 3, the structural strength of the vibration transmission plate 3 is improved, and the grooves 32 are filled with filling materials, after the filling material is poured into the groove 32, the inner support formed by the partition 31 and the groove 32 is wrapped by the soft envelope 33, the sealing of each groove 32 forms a vibration transmission sheet, and if the vibration transmission sheet is heated by a heating electrode, the positive electrode and the negative electrode of the heating electrode are respectively connected with the top and the bottom of the vibration transmission sheet. Wherein, the shape of recess 32 can be set for as required, through the shape of adjustment wall 31 alright with the shape of adjustment recess 32, for example, can set up the groove width that the groove width at recess 32 both ends is greater than the groove width at recess 32 middle part to narrow recess 32 in the middle of wide about having formed, can ensure to pass under the prerequisite of vibration plate structural strength, promote filling material's sound transmission and block efficiency as far as, carry out directional control with the direction of better giving off sound to electromagnetic vibrator 1.
A second embodiment of the present invention provides a control method, which is applied to a processor of an electronic device, where the processor may be a main processor of the electronic device, or may be a microcontroller with processing capability in the electronic device, where the electronic device is, for example, a mobile phone, a tablet computer, and the like, the electronic device includes a screen sound generating device, a display module, and a processor in the first embodiment, and the processor is connected to the screen sound generating device and the display module.
The specific flow of the control method of the present embodiment is shown in fig. 8.
Specifically, when a user uses a preset service in the electronic device, the processor needs to control the electromagnetic vibrator in the screen sound production device to produce sound, the processor detects the contact position of the user and the sound production area of the display module, and takes the preset service as an example of answering a call, and detects the contact position of the user's ear and the display module at the moment, so that the use posture of the user can be judged, for example, the left ear is answered, the right ear is answered, the human ear is close to the top or the middle position of the display module, and the like. The preset service may also be playing music, playing games, and the like.
In this embodiment, the processor detects that the contact position of the user and the sound production area of the display module includes the following two types:
firstly, the display module is a capacitive touch screen, when a user contacts the capacitive touch screen, the capacitive touch screen generates capacitance change, at the moment, the processor acquires capacitance change data of the capacitive touch screen, and then the contact position of the user and a sounding area of the display module can be acquired according to the capacitance change data; the capacitance value of the capacitance of the capacitive touch screen and the capacitance value of the capacitance contacted by the user can be increased, so that the capacitance contacted by the user in the capacitive touch screen is obtained through the comparison of the capacitance values of the capacitive touch screen twice, and then the contact position of the user and the sounding area of the capacitive touch screen can be determined.
And secondly, a proximity sensor is further arranged in the electronic equipment and fixed below the display module, so that when the user uses a preset service, the proximity sensor is started, and the contact position of the user and the sounding area of the display module is detected through the proximity sensor.
It should be noted that, in this embodiment, the electronic device may further include a plurality of screen sound generating devices, for example, two screen sound generating devices, which are respectively disposed at the top and the bottom of the display module of the electronic device, so that one or more screen sound generating devices can be selectively enabled according to different service types, for example, when a user uses a service of listening to or calling from a phone, only the screen sound generating device at the top is enabled, and when the user uses services of listening to music, watching video, and the like, two screen sound generating devices are simultaneously enabled to form a stereo effect, so as to provide better listening experience for the user.
And step 102, determining a non-relevant area which does not cover the contact position in the sound-emitting area according to the contact position.
Specifically, the sound emission area may be divided into a plurality of sub-areas, each sub-area corresponds to a vibration transmission sheet with a matching shape, and all the sub-areas not covering the contact position are non-relevant areas.
And 103, heating the filling material in the vibration conduction sheet in the non-relevant area from a solid state to a liquid state.
Specifically, the vibration transmitting plate corresponding to each sub-region included in the non-relevant region is heated, and the filler in the heated vibration transmitting plate is heated to a liquid state by fixing.
The processor may heat the vibration plate by using the heating electrode, please refer to fig. 2 to 5, and the contact position between the user and the display module is the vibration plate 3a and the vibration plate 3c, the vibration plate in the non-relevant area is the vibration plate 3b and the vibration plate 3d, the processor sends a start instruction to the corresponding heating electrode 4b and the heating electrode 4d, respectively, so that the power supply in the electronic device is respectively connected with the heating electrode 4b and the heating electrode 4d, a pressure difference is formed on the thermotropic liquid crystal in the vibration plate 3b and the vibration plate 3d, the thermotropic liquid crystal is heated, the thermotropic liquid crystal in the vibration plate 3b and the vibration plate 3d is converted from a solid state to a liquid state, thereby the resistance of the vibration plate 3b and the vibration plate 3d to the sound wave emitted by the electromagnetic vibrator 1 is increased, and the sound wave in the vibration plate 3b and the vibration plate 3d is decreased, the sound wave loudness in the direction of the vibration transmission piece 3a and the vibration transmission piece 3c is larger than the sound wave loudness in the direction of the vibration transmission piece 3b and the vibration transmission piece 3d, and the sound wave direction is controlled to be the direction of the vibration transmission piece 3a and the vibration transmission piece 3 c.
In this embodiment, after detecting that the user stops using the preset service, the processor may send a closing instruction to the heating electrode 4b and the heating electrode 4d, and disconnect a power supply in the electronic device from the heating electrode 4b and the heating electrode 4d, so that the thermotropic liquid crystals in the vibration transmitting sheet 3b and the vibration transmitting sheet 3d are cooled from a liquid state to a solid state. In addition, the thermotropic liquid crystal in the vibration conduction sheet in the embodiment can absorb heat inside the electronic device to be converted into liquid, so that heat dissipation of the electronic device can be assisted.
Referring to fig. 9, the electronic device includes a memory 11, a processor 12, a program stored in the memory and running on the processor, a screen sound generator 13 in the first embodiment, and a data bus 14 for implementing connection communication between the processor 11 and the screen sound generator 13 and the memory 12. When executed by the processor, the program realizes the following specific steps as shown in fig. 8:
Specifically, when a user uses a preset service in the electronic device, the processor needs to control the electromagnetic vibrator in the screen sound production device to produce sound, the processor detects the contact position of the user and the sound production area of the display module, and takes the preset service as an example of answering a call, and detects the contact position of the user's ear and the display module at the moment, so that the use posture of the user can be judged, for example, the left ear is answered, the right ear is answered, the human ear is close to the top or the middle position of the display module, and the like. The preset service may also be playing music, playing games, and the like.
In this embodiment, the processor detects that the contact position of the user and the sound production area of the display module includes the following two types:
firstly, the display module is a capacitive touch screen, when a user contacts the capacitive touch screen, the capacitive touch screen generates capacitance change, at the moment, the processor acquires capacitance change data of the capacitive touch screen, and then the contact position of the user and a sounding area of the display module can be acquired according to the capacitance change data; the capacitance value of the capacitance of the capacitive touch screen and the capacitance value of the capacitance contacted by the user can be increased, so that the capacitance contacted by the user in the capacitive touch screen is obtained through the comparison of the capacitance values of the capacitive touch screen twice, and then the contact position of the user and the sounding area of the capacitive touch screen can be determined.
And secondly, a proximity sensor is further arranged in the electronic equipment and fixed below the display module, so that when the user uses a preset service, the proximity sensor is started, and the contact position of the user and the sounding area of the display module is detected through the proximity sensor.
It should be noted that, in this embodiment, the electronic device may further include a plurality of screen sound generating devices, for example, two screen sound generating devices, which are respectively disposed at the top and the bottom of the display module of the electronic device, so that one or more screen sound generating devices can be selectively enabled according to different service types, for example, when a user uses a service of listening to or calling from a phone, only the screen sound generating device at the top is enabled, and when the user uses services of listening to music, watching video, and the like, two screen sound generating devices are simultaneously enabled to form a stereo effect, so as to provide better listening experience for the user.
And step 102, determining a non-relevant area which does not cover the contact position in the sound-emitting area according to the contact position.
Specifically, the sound emission area may be divided into a plurality of sub-areas, each sub-area corresponds to a vibration transmission sheet with a matching shape, and all the sub-areas not covering the contact position are non-relevant areas.
And 103, heating the filling material in the vibration conduction sheet in the non-relevant area from a solid state to a liquid state.
Specifically, the vibration transmitting plate corresponding to each sub-region included in the non-relevant region is heated, and the filler in the heated vibration transmitting plate is heated to a liquid state by fixing.
The processor may heat the vibration plate by using the heating electrode, please refer to fig. 2 to 5, and the contact position between the user and the display module is the vibration plate 3a and the vibration plate 3c, the vibration plate in the non-relevant area is the vibration plate 3b and the vibration plate 3d, the processor sends a start instruction to the corresponding heating electrode 4b and the heating electrode 4d, respectively, so that the power supply in the electronic device is respectively connected with the heating electrode 4b and the heating electrode 4d, a pressure difference is formed on the thermotropic liquid crystal in the vibration plate 3b and the vibration plate 3d, the thermotropic liquid crystal is heated, the thermotropic liquid crystal in the vibration plate 3b and the vibration plate 3d is converted from a solid state to a liquid state, thereby the resistance of the vibration plate 3b and the vibration plate 3d to the sound wave emitted by the electromagnetic vibrator 1 is increased, and the sound wave in the vibration plate 3b and the vibration plate 3d is decreased, the sound wave loudness in the direction of the vibration transmission piece 3a and the vibration transmission piece 3c is larger than the sound wave loudness in the direction of the vibration transmission piece 3b and the vibration transmission piece 3d, and the sound wave direction is controlled to be the direction of the vibration transmission piece 3a and the vibration transmission piece 3 c.
In this embodiment, after detecting that the user stops using the preset service, the processor may send a closing instruction to the heating electrode 4b and the heating electrode 4d, and disconnect a power supply in the electronic device from the heating electrode 4b and the heating electrode 4d, so that the thermotropic liquid crystals in the vibration transmitting sheet 3b and the vibration transmitting sheet 3d are cooled from a liquid state to a solid state. In addition, the thermotropic liquid crystal in the vibration conduction sheet in the embodiment can absorb heat inside the electronic device to be converted into liquid, so that heat dissipation of the electronic device can be assisted.
It should be noted that, in this embodiment, a controller may also be separately integrated in the screen sound generating device, and the controller is used for implementing the above-mentioned method.
A fourth embodiment of the invention provides a storage medium for computer readable storage, the storage medium storing one or more programs, the one or more programs being executable by one or more processors to perform the steps of the aforementioned method.
One of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims.
Claims (11)
1. The utility model provides a screen sound generating mechanism which characterized in that is applied to the electronic equipment including the display module assembly, screen sound generating mechanism includes: the display module comprises an electromagnetic vibrator and a plurality of vibration transmission sheets, wherein the plurality of vibration transmission sheets are fixed below the display module and cover the sounding area of the display module;
when each vibration transfer piece is heated, the filling material in the vibration transfer piece is heated from a solid state to a liquid state.
2. The screen sound device of claim 1, further comprising: a vibration bracket;
a plurality of vibration transmission sheets are fixed on one surface of the vibration support, and the vibration transmission sheets are fixed below the display module through the vibration support; the electromagnetic vibrator is fixed on the other surface of the vibration support and is in contact with the vibration transmission sheet.
3. A screen sound generating device as claimed in claim 2 wherein at least one hollowed out area is provided on the vibration cradle.
4. The screen sound production device of claim 2, wherein the vibration bracket is provided with a vibration bin, the bottom of the vibration bin is hollow, and the electromagnetic vibrator is fixed in the vibration bin and is in contact with the vibration transmission sheet.
5. A screen sound generating device as defined in claim 1 wherein the vibration plate has a plurality of partitions formed therein, a groove is formed between two adjacent partitions, the groove is filled with the filler material and is sealed.
6. A screen sound emitting device according to claim 5, wherein the groove width at the ends of the groove is greater than the groove width in the middle of the groove.
7. The screen sound device of claim 2, further comprising: the heating electrodes are fixed on the vibration support, and each pair of heating electrodes corresponds to and is connected with the vibration transmission sheet one by one;
the heating electrodes are used for heating the filling materials in the corresponding vibration transmission pieces from a solid state to a liquid state when receiving a starting instruction.
8. A screen sound generating device as claimed in any one of claims 1 to 7, wherein the filler material is a thermotropic liquid crystal.
9. A control method applied to an electronic device including a display module, the electronic device further including the screen sound generating apparatus of any one of claims 1 to 8, the method comprising:
detecting the contact position of a user and a sounding area of the display module;
according to the contact position, determining a non-relevant area which does not cover the contact position in the sound-emitting area;
heating the filling material in the vibration transfer sheet in the irrelevant area from a solid state to a liquid state.
10. The control method according to claim 9, wherein the display module is a capacitive touch screen;
the detection user with the contact position of the vocal area of display module assembly includes:
when a user contacts the capacitive touch screen, acquiring capacitance change data of the capacitive touch screen;
and acquiring the contact position of a user and the sounding area of the capacitive touch screen according to the capacitance change data.
11. An electronic device, characterized in that the device comprises a memory, a processor, a program stored on the memory and executable on the processor, the screen sound generator of any of claims 1 to 8, and a data bus for enabling connection communication between the processor and the memory and the screen sound generator, the program, when executed by the processor, implementing the steps of the control method of claim 9 or 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453449.9A CN113726924B (en) | 2020-05-25 | 2020-05-25 | Screen sounding device, control method and electronic equipment |
| PCT/CN2021/095816 WO2021238919A1 (en) | 2020-05-25 | 2021-05-25 | Screen sound-producing apparatus, control method, electronic device, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453449.9A CN113726924B (en) | 2020-05-25 | 2020-05-25 | Screen sounding device, control method and electronic equipment |
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| CN113726924A true CN113726924A (en) | 2021-11-30 |
| CN113726924B CN113726924B (en) | 2024-08-30 |
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| WO (1) | WO2021238919A1 (en) |
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| CN117135551B (en) * | 2023-03-10 | 2024-05-28 | 荣耀终端有限公司 | Piezoelectric vibration module, screen sounding assembly and electronic equipment |
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| JP4417577B2 (en) * | 2001-03-21 | 2010-02-17 | 北川工業株式会社 | Heat transfer, damping laminated sheet |
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| CN210090908U (en) * | 2019-06-17 | 2020-02-18 | 青岛海信电器股份有限公司 | Display device |
| CN110493697A (en) * | 2019-07-31 | 2019-11-22 | 武汉华星光电技术有限公司 | Vibration sounding type display panel |
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| CN101928423A (en) * | 2009-06-18 | 2010-12-29 | 日东电工株式会社 | High temperature vibration damper composition, high temperature vibration damping base material, its using method, high temperature vibration-damping sheet and using method thereof |
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| WO2021238919A1 (en) | 2021-12-02 |
| CN113726924B (en) | 2024-08-30 |
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