阅读说明：本技术 一种显示屏、电子设备及其控制方法 (Display screen, electronic equipment and control method thereof ) 是由 崔志佳 范泽华 杨乐 于 2019-09-11 设计创作，主要内容包括：本申请公开了一种显示屏、电子设备及其控制方法,所述显示屏包括公共电极层和发声单元。所述公共电极层电连接所述发声单元,所述显示屏具有显示时间段,及发声时间段。在显示时间段内,所述公共电极层接收显示信号,所述显示屏显示。在发声时间段内,所述公共电极层接收发声信号,所述发声单元发声。实现所述公共电极层的分时复用,所述显示屏结构简化,节省成本。(the application discloses a display screen, an electronic device and a control method of the electronic device. The public electrode layer is electrically connected with the sounding unit, and the display screen is provided with a display time period and a sounding time period. And in a display time period, the common electrode layer receives a display signal, and the display screen displays the display signal. In the sounding time period, the public electrode layer receives sounding signals, and the sounding unit sounds. The time-sharing multiplexing of the common electrode layer is realized, the structure of the display screen is simplified, and the cost is saved.)

1. the display screen is characterized by comprising a common electrode layer and a sounding unit, wherein the common electrode layer is electrically connected with the sounding unit, and the display screen has a display time period and a sounding time period; in a display time period, the common electrode layer receives a display signal, and the display screen displays the display signal; in the sounding time period, the public electrode layer receives sounding signals, and the sounding unit sounds.

2. The display screen of claim 1, wherein the display screen further has a reset period after the sound emission period and before the display period, wherein the common electrode layer receives a reset signal during the reset period and the display screen is reset.

3. The display screen according to claim 1 or 2, wherein the display screen includes a plurality of the sound generating units, the common electrode layer is provided with a plurality of common electrodes arranged corresponding to the plurality of sound generating units, in the display time period, the common electrode layer receives a display position signal, the common electrode corresponding to the display position signal receives a display signal, the display screen displays at the common electrode corresponding to the display position signal, in the sound generating time period, the common electrode layer receives a sound generating position signal, the common electrode corresponding to the sound generating position signal receives a sound generating signal, and the sound generating unit corresponding to the sound generating position signal generates sound.

4. The display screen of claim 3, wherein the plurality of common electrodes are arranged in an array, the common electrode layer is provided with a plurality of row wires and a plurality of column wires, and a plurality of conductive switches are arranged in an array, each conductive switch is electrically connected to a crossing point of the row wire and the column wire, each common electrode is electrically connected to each conductive switch, the conductive switches receive the display position signals during the display time period, and the common electrode layer receives the display signals.

5. the display screen according to claim 1 or 2, wherein the common electrode layer is provided with a first electrode layer and a second electrode layer opposite to the first electrode layer, the sound generating unit is provided between the first electrode layer and the second electrode layer, and the sound generating unit is provided with an input end electrically connected to the first electrode layer and an output end electrically connected to the second electrode layer.

6. A screen according to claim 5, wherein the screen is provided with a black matrix, and each sound generating unit is provided with a conductive coil electrically connecting the input and output terminals, the conductive coil being opposite to the black matrix.

7. A display screen according to claim 5, wherein the common electrode layer is provided with an insulating layer between the first electrode layer and the second electrode layer, and the conductive coil is provided on the insulating layer and electrically connects the first electrode layer and the second electrode layer via the insulating layer.

8. An electronic device characterized in that it comprises a display screen according to any one of claims 1-7.

9. The control method of the electronic equipment is characterized by being used for controlling the electronic equipment, the electronic equipment is provided with a display screen, the display screen comprises a public electrode layer and a sounding unit, the public electrode layer is electrically connected with the sounding unit, the display screen is provided with a display time period and a sounding time period, and the control method of the electronic equipment comprises the following steps:

Receiving an image signal in a display time period, and sending a display signal to the common electrode layer according to the image signal so as to enable the display screen to display;

And in the sounding time period, receiving an audio signal, and sending a sounding signal to the common electrode layer according to the audio signal so as to enable the sounding unit to sound.

10. The method for controlling an electronic device according to claim 9, wherein the display screen further has a reset period after the sound emission period and before the display period, the method further comprising the steps of:

And in the reset time period, receiving an initialization signal, and sending a reset signal to the common electrode according to the initialization signal so as to reset the display screen.

11. the method according to claim 9 or 10, wherein the display screen includes a plurality of the sound emission units, and the common electrode layer is provided with a plurality of common electrodes arranged corresponding to the plurality of the sound emission units; during the voicing time period, the receiving an audio signal step comprises:

Determining a sounding position signal and a sounding signal according to the audio signal;

And sending the sounding position signal to the common electrode layer, and sending the sounding signal to the common electrode corresponding to the sounding position signal, so that the sounding unit corresponding to the sounding position signal sounds.

12. The method of controlling an electronic device according to claim 11,

The receiving of the image signal during the display period includes:

Determining a display position signal and a display signal according to the image signal;

And sending the display position signal and the display signal to the common electrode layer so that the display screen displays at the common electrode corresponding to the display position signal.

Technical Field

the invention relates to the field of communication equipment, in particular to a display screen, electronic equipment and a control method of the electronic equipment.

Background

At present, screen sounding technologies on mobile devices such as mobile phones have been developed, but wiring of a plurality of sounding units in a display screen needs to be separately arranged, and wiring for setting the sounding units can increase the process of the display screen and the thickness of the display screen.

Disclosure of Invention

The application provides a display screen, an electronic device and a control method thereof.

The application provides a display screen, wherein the display screen comprises a public electrode layer and a sounding unit, the public electrode layer is electrically connected with the sounding unit, and the display screen is provided with a display time period and a sounding time period; in a display time period, the common electrode layer receives a display signal, and the display screen displays the display signal; in the sounding time period, the public electrode layer receives sounding signals, and the sounding unit sounds.

the application also provides an electronic device, wherein the electronic device comprises the display screen.

The application further provides a control method of an electronic device, wherein the control method of the electronic device is used for controlling the electronic device, the electronic device is provided with a display screen, the display screen comprises a common electrode layer and a sounding unit, the common electrode layer is electrically connected with the sounding unit, the display screen has a display time period and a sounding time period, and the control method of the electronic device comprises the following steps:

Receiving an image signal in a display time period, and sending a display signal to the common electrode according to the image signal so as to enable the display screen to display;

and in the sounding time period, receiving an audio signal, and sending a sounding signal to the common electrode according to the audio signal so as to enable the sounding unit to sound.

According to the display screen, the electronic equipment and the control method of the electronic equipment, the sound production unit is electrically connected through the common electrode layer, and the display screen has a display time period and a sound production time period. And in a display time period, the common electrode layer receives a display signal, and the display screen displays the display signal. In the sounding time period, the public electrode layer receives sounding signals, and the sounding unit sounds. The time-sharing multiplexing of the common electrode layer is realized, the structure of the display screen is simplified, and the cost is saved.

drawings

in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a display screen provided by an embodiment of the present application;

fig. 2 is a schematic distribution diagram of sound emitting units provided in an embodiment of the present application;

FIG. 3 is a schematic view of a display screen provided in another embodiment of the present application;

FIG. 4 is a schematic time-sharing diagram of a common electrode layer provided in an embodiment of the present application;

FIG. 5 is a schematic time-sharing diagram of a common electrode layer according to another embodiment of the present disclosure

FIG. 6 is a schematic diagram of a sound unit provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of a color block provided in an embodiment of the present application;

Fig. 8 is a schematic layout diagram of a sound generating unit and a common electrode layer provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of the connection of a storage capacitor according to an embodiment of the present application;

FIG. 10 is a schematic enlarged view of a portion of a display screen provided in an embodiment of the present application;

FIG. 11 is a schematic diagram of an electronic device provided by an embodiment of the application;

Fig. 12 is a schematic diagram illustrating a control method of a display screen according to an embodiment of the present application;

fig. 13 is a schematic diagram illustrating a sound emission control method for a display screen according to an embodiment of the present application;

Fig. 14 is a schematic diagram of a display control method of a display screen according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

In the description of the embodiments of the present application, it should be understood that the terms "thickness" and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and do not imply or indicate that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and should not be construed as limiting the present application.

Referring to fig. 1, the present application provides a display screen 100, where the display screen 100 includes a common electrode layer 10 and a sound unit 20, and the common electrode layer 10 is connected to the sound unit 20. The display screen 100 has a display period a and a sound emission period b. In the display time period a, the common electrode layer 10 receives a display signal 110, and the display screen 100 displays the display signal. In the sounding time period b, the common electrode layer 10 receives the sounding signal 120, and the sounding unit 20 sounds. It is understood that the display screen 10 is applied to an electronic device, which may be a mobile phone, a tablet computer, a notebook computer, or the like.

The sound generating unit 20 is electrically connected through the common electrode layer 100, and the display screen 100 has a display time period a and a sound generating time period b; in the display time period a, the common electrode layer 10 receives a display signal 110, and the display screen 100 displays the display signal. In the sounding time period b, the common electrode layer 10 receives the sounding signal 120, and the sounding unit 20 sounds. The time-sharing multiplexing of the common electrode layer 10 is realized, the structure of the display screen 100 is simplified, and the cost is saved.

referring to fig. 1, in this embodiment, the display panel 100 includes a driving circuit 30, a thin film transistor array layer 40, and a dielectric layer 50 between the thin film transistor array layer 40 and the common electrode layer 10, wherein the driving circuit 30 is electrically connected to the thin film transistor array layer 40, the common electrode layer 10, and the sound unit 20. In the display time period a, the driving circuit 30 sends the display signal 110 to the common electrode layer 10 to drive the display screen 100 to display. In the sounding time period b, the driving circuit 30 sends the sounding signal 120 to the common electrode layer 10, and the common electrode layer 10 transmits the sounding signal 120 to the sounding unit 20 to drive the sounding unit 20 to sound.

Referring to fig. 1, in this embodiment, the display screen 100 may be a liquid crystal display screen, and the display screen 100 further includes a backlight module 60, a liquid crystal layer (i.e., a dielectric layer) 50, and a filter layer 70. The backlight module 60, the thin film transistor array layer 40, the liquid crystal layer 50, the common electrode layer 10 and the filter layer 70 are sequentially stacked, and the common electrode layer 10 is electrically connected with the thin film transistor array layer 40. In the display time period a, the thin film crystal array layer 40 and the common electrode layer 10 receive the display signal 110, the display signal 110 is a voltage signal, and a pressure difference with a certain intensity is formed between the thin film crystal array layer 40 and the common electrode layer 10 on two sides of the liquid crystal layer 50. The liquid crystal layer 50 includes a plurality of liquid crystals 51, and the liquid crystals 51 perform a twisting motion under the action of the pressure difference and form twisting angles of different angles according to the magnitude of the pressure difference. The light emitted from the backlight module 60 is transmitted to the common electrode layer 10 and the filter layer 70 along the extending direction of each of the liquid crystals 51. The filter layer 70 has a plurality of pixel units 71 arranged in an array, and each of the pixel units 71 includes at least one red color block 72, one green color block 73, and a blue color block 74. The light emitted from the backlight module 60 passes through the pixel unit 71 to form colored light and then passes through the display screen 100, so that the display of the display screen 100 is realized.

Referring to fig. 1, in the present embodiment, the sound generating unit 20 is disposed close to the filter layer 70 and away from the common electrode layer 10. The sound generating unit 20 is provided with a connection terminal 21 penetrating the filter layer 70 and electrically connected to the common electrode layer 10. The sound generating unit 20 is made of a transparent material so as not to affect the display effect of the display screen 100. The sound generating unit 20 is an electroacoustic transducer, and in the sound generating time period b, the common electrode layer 10 receives the sound generating signal 120 and transmits the sound generating signal 120 to the sound generating unit 20. The sounding signal 120 is an electric energy signal with a certain frequency, and the sounding unit 20 receives the sounding signal 120 and then generates vibration with a certain frequency to generate sound waves and conduct the sound waves out of the display screen 100, so that the display screen 100 sounds.

In the present embodiment, when there is one sound generating unit 20, the sound generating unit 20 can be used as a receiver or a speaker. When the sound generating units 20 are plural, some of the sound generating units 20 may be used as receivers, and other of the sound generating units 20 may be used as speakers. Of course, all the sound emitting units 20 can also be used as receivers or as speakers. The sound generating unit 20 may be one or a combination of a plurality of known speaker types, such as a moving coil speaker, an electrostatic speaker, a piezoelectric speaker, an electromagnetic speaker, and an ionic speaker. In specific implementation, the sound generating unit 20 needs to have the characteristics of lightness, thinness and high light transmittance, so as to reduce the influence of the sound generating unit 20 on the display effect and thickness of the display screen 100.

Referring to fig. 2, in an embodiment, the sound units 20 are distributed on the display screen 100 in a distributed manner, the sound units 20 are distributed in different areas of the display screen 100, the size of each sound unit 20 may be different, and the sound units 20 may be arranged at intervals. By arranging a plurality of sound generating units 20 on the display screen 100, the display screen 100 can generate sound in a plurality of areas, a wider sound generating range is constructed, and various different combined sound generating effects, such as a left channel surround sound and a right channel surround sound, are realized.

referring to fig. 3, in another embodiment, the display screen 100 may also be an OLED display screen. The thin film crystal array layer 40, the organic light emitting layer (i.e., the dielectric layer) 50, and the common electrode layer 10 are sequentially stacked. The organic light emitting layer 50 is provided with a red light emitter 75, a green light emitter 76, and a blue light emitter 77. In the display time period a, the thin film transistor array layer 40 and the common electrode layer 10 receive the display signal 110, and the display signal 110 is a current signal. The thin film crystal array layer 40 and the common electrode layer 40 form an electric field with a certain intensity at two sides of the organic light emitting layer 50. Current flows through the red, green, and blue emitters 75, 76, and 77 to generate red, green, and blue light. The red light, the green light and the blue light are mixed to form colored light and the colored light is transmitted out of the display screen 100, so that the display of the display screen 100 is realized.

Referring to fig. 3, in another embodiment, the sound unit 20 is disposed adjacent to the common electrode layer 10 and away from the organic light emitting layer 50. An insulating part 11 is arranged between the sound generating unit 20 and the common electrode layer 10, and the connecting end 21 penetrates through the insulating part 11 and is electrically connected with the common electrode layer 10.

Referring to fig. 4, in the present embodiment, in the display time period a, the common electrode layer 10 continuously receives the display signal 110, and the display screen 100 continuously displays the display signal. In the sounding time period b, the common electrode layer 10 continuously receives the sounding signal 120, and the sounding unit 20 continuously soundes. The display screen 100 may enter the display time period a first and then turn to the sound production time period b, or the display screen 100 enters the sound production time period b first and then turns to the display time period a. It is also possible that the display screen 100 alternately cycles into the display period a and the sound emission period b. The display screen 100 divides the driving time of the display screen 100 according to a certain time sequence to form the display time period a with a certain length and the sound generating time period b with a certain length. Wherein the driving time of the display screen 100 indicates a time period from when the display screen 100 is turned on to when it is turned off.

Referring to fig. 1, further, the display screen 100 is provided with a black matrix 52, each sound generating unit 20 is provided with a conductive coil 22, and the conductive coil 22 is opposite to the black matrix 52.

Referring to fig. 1, in the present embodiment, the black matrix 52 is disposed on the filter layer 70 and filled between the red color block 72, the green color block 73 and the blue color block 74. The black matrix 52 is disposed between the red color block 72, the green color block 73 and the blue color block 74 to shield the electric elements on the thin film crystal array layer 40. The conductive coil 22 and the black matrix 52 are oppositely arranged, so that the conductive coil is prevented from shielding light passing through the red color block 72, the green color block 73 and the blue color block 74 to influence the display effect of the display screen 100. The conductive coil 22 is electrically connected to the common electrode layer 10. Referring to fig. 6 and 7, it should be noted that the structures indicated in fig. 6 and 7 are arranged oppositely. The sound generating unit 20 is further provided with a diaphragm 23 and a magnetic material 24, wherein the diaphragm 23 is arranged opposite to each of the red color block 72, the green color block 73 and the blue color block 74. The diaphragm 23 is a transparent film, and the magnetic material 24 is fixed at the center of the diaphragm 23. The common electrode layer 10 receives the sounding signal 120 and transmits the sounding signal 120 to the conductive coil 22, and the sounding signal 120 is a current signal varying at a certain frequency. After receiving the sounding signal 120, the conductive coil 22 generates a magnetic field changing at a certain frequency under the action of the annular current signal, and the magnetic material 24 moves under the action of the magnetic field to drive the diaphragm 23 to vibrate at a certain frequency. The vibrating diaphragm 23 pushes air around the vibrating diaphragm 23 under the condition of vibration to generate sound waves with a certain frequency, so that the sound of the display screen 100 is generated.

Referring to fig. 3 again, in another embodiment, the black matrix 52 is disposed on the dielectric layer 50 and filled between the red light emitter 75, the green light emitter 76 and the blue light emitter 77. The structure of the sound generating unit 20 is the same as that of the embodiment shown in fig. 3, and is not described herein again.

referring to fig. 4, further, the display screen 100 further has a reset time period c after the sound emission time period b and before the display time period a. In the reset period c, the common electrode layer 10 receives a reset signal 130, and the display screen 100 is reset.

Referring to fig. 4, in the present embodiment, in the reset period c, the driving circuit 30 sends the reset signal 130 to the thin film transistor array layer 40 and the common electrode layer 10. The reset signal 130 is a voltage signal with a certain voltage, and the reset signal 130 causes a voltage difference to be formed between the thin film transistor array layer 40 and the common electrode layer 10. The liquid crystal layer 50 initializes the twist angle under the action of the pressure difference, so that when the display screen 100 enters the next display time period a, the response speed of the liquid crystal layer 50 is increased, and the response time of the display screen 100 is reduced. For example: the initial twist angle of the liquid crystal 51 is set to an intermediate value. Assuming that the maximum twist angle of the liquid crystal 51 with respect to the thin film transistor array layer 40 is 90 degrees, at the end of the last display period a, the twist angle of the liquid crystal 51 with respect to the thin film transistor array layer 40 is 60 degrees. In the reset period c, the liquid crystal 51 is twisted to an angle of 45 degrees with respect to the thin film transistor array layer 40 by the reset signal 130. When the next display period a is entered, the liquid crystal 51 needs to be twisted to an angle of 0 degree with respect to the thin film transistor array layer 40. The stroke of the liquid crystal 51 from 45 degrees to 0 degrees is smaller than the stroke of the liquid crystal 51 from 60 degrees to 0 degrees, that is, the time of the liquid crystal 51 from 45 degrees to 0 degrees is smaller than the time of the liquid crystal 51 from 60 degrees to 0 degrees, and the response speed of the liquid crystal 51 is improved.

referring to fig. 4, in an embodiment, a time interval d is set between the sounding time period b and the reset time period c, that is, the common electrode layer 10 receives the reset signal 130 after receiving the sounding signal 120. In the time interval d, the common electrode layer 10 releases charges to the driving circuit 30, so that a fault that the charges are not completely released after the common electrode layer 10 finishes the sound production time period b to cause charge interference is avoided.

Referring to fig. 5, in another embodiment, the reset time period c may also be set before each of the display time periods a and before each of the sounding time periods b. The reset signal 130 causes the common electrode layer 10 to sufficiently discharge electric charges and restore to an initial potential. Before each display time period a and before each occurrence time period, the common electrode layer 10 fully releases charges, and when the common electrode layer 10 enters the display time period a or the sound generation time period b, the common electrode layer 10 does not have charge interference. The display screen 100 can stably display and sound.

Referring to fig. 8, further, the display screen 100 includes a plurality of the sound units 20, and the common electrode layer 10 is provided with a plurality of common electrodes 12 arranged corresponding to the plurality of the sound units 20. In the display time period a, the common electrode layer 10 receives a display position signal, the common electrode 12 corresponding to the display position signal receives a display signal 110, and the display screen 100 displays at the common electrode 12 corresponding to the display position signal. In the sounding time period b, the common electrode layer 10 receives a sounding position signal, the common electrode 12 corresponding to the sounding position signal receives a sounding signal 120, and the sounding unit 20 corresponding to the sounding position signal sounds.

referring to fig. 8, in the present embodiment, in the display time period a, the driving circuit 30 sends the display position signal to the common electrode layer 10, and the display position signal indicates the position of one or more common electrodes 12. The driving circuit 30 sends the display signal 110 to the common electrode 12 corresponding to the display position signal, and the display screen 100 displays at one or more common electrodes 12 corresponding to the display position signal. Also, in the sound emission time period b, the driving circuit 30 transmits the sound emission position signal to the common electrode layer 10, and the sound emission position signal indicates one or more common electrodes 12. The driving circuit 30 sends the sounding signal 120 to the common electrode 12 corresponding to the sounding position signal, and the sounding unit 20 corresponding to the sounding position signal sounds.

please refer to fig. 8, in this embodiment. The driving circuit 30 sends the display position signal and the sounding position signal to the common electrode layer 10 at the same time, and the driving circuit 30 sends the display signal 110 and the sounding signal 120 to the common electrode 12 corresponding to the display position signal and the common electrode 12 corresponding to the sounding position signal at the same time respectively. The display position signal and the sounding position signal correspond to different public electrodes 12, so that the display screen 100 can display and sound at different positions simultaneously, and the display screen 100 is rich in functions.

Referring to fig. 8, further, the plurality of common electrodes 12 are arranged in an array, and the common electrode layer 10 is provided with a plurality of row wires 13 and a plurality of column wires 14, and a plurality of conductive switches 15 arranged in an array. Each of the conductive switches 15 electrically connects the intersection of the row and column conductors 13, 14. Each of the common electrodes 12 is electrically connected to each of the conductive switches 15. In the display time period a, the conductive switch 15 receives the display position signal, and the common electrode layer 10 receives the display signal 110.

referring to fig. 8, in the present embodiment, the driving circuit 30 is electrically connected to the row conductive line 13 and the column conductive line 15. The display position signal may be a voltage signal or this may be a current signal, but also a pulse signal. The conductive switch 15 has the characteristic of being turned on by the display position signal. The conductive switch 15 conducts the column conductor 14 and the common electrode 12 under the effect of the display position signal. For example, in the display time period a, the driving circuit 30 transmits the display position signal to the conductive switch 15 in the mth row corresponding thereto via the mth row conductor 13, and the driving circuit 30 transmits the display signal 110 to the common electrode 12 in the nth column via the nth column conductor 14, and since only the conductive switch 15 in the mth row is turned on, only the common electrode 12 in the mth row may receive the display signal 110, so that the display screen 100 displays at the nth common electrode 12 in the mth row. It is to be understood that the display position signal may correspond to one or more of the row conductors 13 and the display signal 110 may correspond to one or more of the column conductors 14, such that the display screen 100 may be displayed at a plurality of the common electrodes 12. Wherein m and n are natural numbers, m is more than or equal to 1, and n is more than or equal to 1.

Referring to fig. 9, in one embodiment, the thin film transistor array layer 40 is provided with a pixel electrode 41 and a storage capacitor 42 having a first connection end 43 and a second connection end 44. The pixel electrode 41 is electrically connected to the first connection terminal 43, and the common electrode 12 is electrically connected to the second connection terminal 44. The display signal 110 has a first display signal 110 and a second display signal 110, the first display signal 110 is a first voltage signal having gray information, and the second display signal 110 is a second voltage signal of a constant potential. In the display time period a, the driving circuit 30 sends the first display signal 110 to the pixel electrode 41, and the driving circuit 30 sends the second display signal 110 to the common electrode 12, so that a voltage difference with a certain intensity is formed between two sides of the liquid crystal 51, and the display screen 100 displays the image. Meanwhile, the driving circuit 30 charges the storage capacitor 42 through the first connection end 43 and the second connection end 44, respectively. In the non-display period a, the driving circuit 30 and the pixel electrode 41 are disconnected, the storage capacitor 42 maintains the voltage difference across the liquid crystal 51 when charged, so that the liquid crystal 51 maintains the twisted angle, and the display screen 100 continues to display, where the display screen 100 may be in the sound emission period b or the reset period c. The display screen can display and sound or reset at the same time, and user experience is improved.

Referring to fig. 1 again, further, the common electrode layer 10 is provided with a first electrode layer 16 and a second electrode layer 17 opposite to the first electrode layer 16, the sound generating unit 20 is disposed between the first electrode layer 16 and the second electrode layer 17, and the sound generating unit 20 is provided with an input end (i.e., a connection end) 21 electrically connected to the first electrode layer 16 and an output end 25 electrically connected to the second electrode layer 17.

Referring to fig. 1, in this embodiment, the first electrode layer 16 and the second electrode layer 17 are electrically connected to the driving circuit 30, and the first electrode layer 16 is multiplexed to receive the display signal 110 and the sound signal 120. In the display time period a, the driving circuit 30 sends the display signal 110 to the first electrode layer 16; during the sound emission time period b, the driving circuit 30 sends a sound emission signal 120 to the first electrode layer 16, and the sound emission signal 120 is transmitted to the conductive coil 22 through the first electrode layer 16 and the input end 21, and is led out to the driving circuit 30 through the output end 25 and the second electrode layer 17. Of course, in another embodiment, the sounding signal 120 may also be conducted to the conductive coil 22 through the second electrode layer 17 and then conducted to the driving circuit 30 through the first electrode layer 16.

referring to fig. 1, further, the common electrode layer 10 is provided with an insulating layer (i.e., an insulating portion) 11 located between the first electrode layer 16 and the second electrode layer 17, and the conductive coil 22 is disposed on the insulating layer 11 and electrically connected to the first electrode layer 16 and the second electrode layer 17 through the insulating layer 11.

Referring to fig. 10, in the present embodiment, the insulating layer 11 provides an insulating environment for the conductive coil 22. The insulating layer 11 is provided with a plurality of through holes 18 corresponding to the input terminal 21 and the output terminal 22, and the input terminal 21 and the output terminal 25 are electrically connected to the first electrode layer 16 and the second electrode layer 17 through the through holes 18. Stable operation of the conductive coil 22, the first electrode layer 16 and the second electrode layer 17 is achieved.

referring to fig. 11, the present application further provides an electronic device 200, where the electronic device 200 includes the display screen 100.

Referring to fig. 11, in this embodiment, the electronic device 200 further includes a housing 220 and a main board 210, the display screen 100 covers the housing 220 and forms a receiving cavity, and the main board 210 is received in the receiving cavity. The main board 210 is electrically connected to the display screen 100, and the main board 210 receives an image signal and an audio signal and transmits the image signal and the audio signal to the display screen 100. The display screen 100 determines the display position signal and the display signal 110 according to the image signal, and determines the sound emission position signal and the sound emission signal 120 according to the audio signal.

Referring to fig. 12, the present application further provides a method for controlling an electronic device, where the method for controlling an electronic device is used to control an electronic device 200, the electronic device 200 is provided with a display screen 100, the display screen 100 includes a common electrode layer 10 and a sound generating unit 20, the common electrode layer 10 is electrically connected to the sound generating unit 20, the display screen 100 has a display time period a and a sound generating time period b, and the method for controlling an electronic device includes the steps of:

310: in the display time period a, receiving an image signal, and sending a display signal 110 to the common electrode layer 10 according to the image signal, so that the display screen 100 displays the image signal;

in this embodiment, the image signal may be received by the electronic device 200 via an input module. The input module can be a wireless network module or a wireless Bluetooth module, and can also be an HDMI interface, a DP interface, a DVI interface, a universal serial interface, a thunder and lightning interface and the like. The image signal may also be acquired by a sensor provided on the electronic device, for example, acquired via an optical sensor such as a camera, or acquired via a touch sensor interaction, etc. The image signal can also be obtained by reading pictures, videos and the like stored in the electronic equipment. There are various ways in which the electronic device 200 acquires the image signal, and they are not listed here.

330: in the sound emission time period b, an audio signal is received, and a sound emission signal 120 is sent to the common electrode layer 10 according to the audio signal, so that the sound emission unit 20 emits sound.

In this embodiment, the audio signal may be a voice signal obtained by the electronic device 200 receiving a voice call, a video call, a network call, or the like, may also be obtained by the electronic device 200 through a microphone or the like disposed on the electronic device 200, and may also be obtained through an input module such as a wireless bluetooth module, an audio input interface, or the like. There are various ways in which the electronic device 200 may obtain the audio signal, and they are not listed here.

It should be noted that fig. 12 is only for indicating the control method of the electronic device, and the steps of the control method of the electronic device are not sequential.

Referring to fig. 12, further, the display screen 100 further has a reset time period c after the sounding time period b and before the display time period a, and the control method of the electronic device further includes the steps of:

320: and in the reset time period c, receiving an initialization signal, and sending a reset signal 130 to the common electrode layer according to the initialization signal to reset the display screen.

Referring to fig. 13, further, the display screen 100 includes a plurality of the sound units 20, and the common electrode layer 100 is provided with a plurality of common electrodes 12 arranged corresponding to the plurality of sound units 20; during the sounding period b, the step of receiving the audio signal includes:

331: determining an utterance position signal and an utterance signal 120 from the audio signal;

332: and sending the sounding position signal to the common electrode layer 10, and sending the sounding signal 120 to the common electrode 12 corresponding to the sounding position signal, so that the sounding unit 20 corresponding to the sounding position signal sounds.

referring to fig. 14, further, in the display period a, the step of receiving the image signal includes:

311: determining a display position signal and a display signal from the image signal 110;

312: and sending the display position signal and the display signal 110 to the common electrode layer 10, so that the display screen 100 displays at the common electrode 12 corresponding to the display position signal.

According to the display screen 100, the electronic device 200 and the control method thereof, the sound generating unit 20 is electrically connected through the common electrode layer 10, and the display screen 100 has a display time period a and a sound generating time period b. In the display time period a, the common electrode layer 10 receives a display signal 110, and the display screen 100 displays the display signal. In the sounding time period b, the common electrode layer 10 receives the sounding signal 120, and the sounding unit 20 sounds. The time-sharing multiplexing of the common electrode layer 10 is realized, the structure of the display screen 100 is simplified, and the cost is saved.

The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.