CN109032411A - A kind of display panel, display device and its control method - Google Patents
A kind of display panel, display device and its control method Download PDFInfo
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- CN109032411A CN109032411A CN201810836786.9A CN201810836786A CN109032411A CN 109032411 A CN109032411 A CN 109032411A CN 201810836786 A CN201810836786 A CN 201810836786A CN 109032411 A CN109032411 A CN 109032411A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
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Abstract
The present invention provides a kind of display panel, display device and its control methods.The display panel includes substrate, forms display module over the substrate and sensor module and control module；The display module is configured as display picture；The sensor module is configured as the touching signals generated when detecting the display module generation touch-control, the touching signals is sent to the control module, and export sound wave according to the audio signal that the control module is sent；The control module is configured as determining the position of touch of the touch-control according to the touching signals, determines audio signal corresponding with the position of touch, and the audio signal is sent to sensor module.In the embodiment of the present invention, sensor module has the function of vocal function and touch control detection, the setting based on sensor module, so that display panel has the function of autonomous sounding, and has the function of output sound wave corresponding with position of touch.
Description
Technical field
The present invention relates to field of display technology, especially a kind of display panel, display device and its control method.
Background technique
With the fast development of display technology, the technologies such as virtual reality technology, haptic feedback technology are widely used in showing
Equipment preparation, so that the display equipment prepared has stronger human-computer interaction function.
However in the prior art, the sounding device for being placed in display device is traditional sounding device, mainly includes
Acoustics circuit and loudspeaker, suitable for showing that the type of sounding device of equipment is single.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of display panel, suitable it is configured as with solve in background technique
Show the single problem of the type of the sounding device of equipment.
On the one hand, a kind of display panel is provided, including substrate, forms display module over the substrate and sensor
Component and control module；
The display module is configured as display picture；
The sensor module is configured as the touching signals generated when detecting the display module generation touch-control, by institute
It states touching signals and is sent to the control module, and sound wave is exported according to the audio signal that the control module is sent；
The control module is configured as determining the position of touch of the touch-control according to the touching signals, determining and institute
The corresponding audio signal of position of touch is stated, and the audio signal is sent to sensor module.
Further, the control module, is configured to determine that the image content of the touch position, obtain with it is described
The corresponding audio signal of image content.
Further, the control module is configured as after determining audio signal corresponding with the position of touch, place
The audio signal is managed, and the audio signal is sent to the sensor module by treated；
The sensor module is configured as according to treated the audio signal output directional sound wave.
Further, the sensor module includes the top electrode being stacked, piezoelectric membrane, lower electrode and backboard,
In, the lower electrode includes lower electrode unit of multiple array arrangements on the backboard；The backboard is bonded in the display
On the light-emitting surface of mould group.
Further, the display module and sensor module formed over the substrate include:
Tft layer over the substrate is formed, the tft layer includes the driving film being arranged alternately
Transistor and sensor thin film transistor；
The insulating layer being formed on tft layer；
First electrode layer on the insulating layer is formed, the first electrode layer includes first independently of each other and be arranged alternately
Pixel electrode and lower electrode；First pixel electrode is brilliant with corresponding driving film by the first via hole on the insulating layer
The electrical connection of body pipe, the lower electrode are electrically connected by the second via hole on the insulating layer with corresponding sensor thin film transistor
It connects；
The pixel defining layer being formed in the first electrode layer, the pixel defining layer mark off the pixel being arranged alternately
Region and sensor region；
The organic light-emitting structure being formed in the pixel region and the piezoelectric membrane being formed in the sensor region,
Wherein, the organic light-emitting structure is electrically connected with corresponding first pixel electrode, and the voltage film and corresponding lower electrode are electric
Connection；
The second electrode lay being formed in the pixel defining layer, the second electrode lay include mutually indepedent and alternately arrange
The second pixel electrode and top electrode of cloth, orthographic projection covering of second pixel electrode in the pixel defining layer are corresponding
Organic light-emitting structure, orthographic projection of the top electrode in the pixel defining layer cover corresponding voltage film；
The encapsulated layer being formed on the second electrode lay.
On the other hand, a kind of display device is additionally provided, including above-mentioned display panel.
On the other hand, a kind of control method of display panel is additionally provided, the control method includes:
The touching signals generated when touch-control occur for sensor module detection display module, and the touching signals are sent to control
Molding block；
The control module determines the position of touch of the touch-control according to the touching signals；
The control module determines audio signal corresponding with the position of touch；
The control module sends the audio signal to the sensor module；
The sensor module exports sound wave according to the audio signal.
Further, the sensor module includes the top electrode being stacked, piezoelectric membrane, lower electrode and backboard, institute
State the lower electrode unit that lower electrode includes multiple array arrangements；The sensor module detection display module occurs to generate when touch-control
Touching signals, the touching signals are occurred to control module, comprising:
The sensor module issues the first ultrasonic signal, and generates electric signal according to the second ultrasonic signal, described
Second ultrasonic signal is the reflection that first ultrasonic signal is generated when the touch position of the touch-control reflects
Signal；
The sensor module use lower electrode unit corresponding with the position of touch exports the electric signal to described
Control module；
The control module determines the position of touch of the touch-control according to the touching signals, comprising:
The control module determines the touch-control position of the touch-control according to the position for the lower electrode unit for sending the electric signal
It sets.
Further, the control module sends the audio signal to the sensor module, comprising:
The audio signal is respectively loaded on each lower electrode unit with preset phase delay, so that the sensor
Component issues orientation sound wave.
Further, described after the control module determines audio signal corresponding with the position of touch
Method further include:
The control module handles the ultrasonic wave of the audio signal to different frequency；
The control module sends the audio signal to the sensor module, comprising:
The ultrasonic wave of the different frequency is sent to the different zones of the lower electrode, the lower electricity in the same area
The frequency for the ultrasonic wave that pole unit receives is identical；
The sensor module exports sound wave according to the audio signal, comprising:
The sensor module issues the ultrasonic wave of different frequency by the lower electrode unit being located in different zones, described
Non-linear interaction can occur for the ultrasonic wave of different frequency, to demodulate orientation sound wave.
Compared with prior art, the present invention includes the following advantages:
The present invention provides a kind of display panel, display device and its control methods.Display panel packet provided by the invention
It includes substrate, form display module on substrate and sensor module and control module, sensor module detects display module
The touching signals generated when touch-control occur, and touching signals are sent to the control module, control module is according to touching signals
It determines the position of touch of touch-control, determines audio signal corresponding with position of touch, and audio signal is sent to sensor module,
Sensor module exports sound wave according to the audio signal that control module is sent, and sensor module has vocal function and touch control detection
Function, the setting based on sensor module so that display panel has the function of autonomous sounding, and have output and touch-control position
Set the function of corresponding sound wave.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sensor module provided in an embodiment of the present invention；
Fig. 2 is the first structure diagram of display panel provided in an embodiment of the present invention；
Fig. 3 is the second structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 4 is the method flow diagram of the control method of display panel provided in an embodiment of the present invention；
Fig. 5 is the waveform diagram of the audio signal on sensor module provided in an embodiment of the present invention.
Description of symbols
1, top electrode 2, piezoelectric membrane 3, lower electrode 31, lower electrode unit
4, backboard 5, substrate 6, tft layer 61, pixel TFT
62, sensor TFT 7, insulating layer 8, first electrode layer
81, the first pixel electrode 82, lower electrode 9, pixel defining layer
10, organic light-emitting structure 11, piezoelectric membrane 12, the second electrode lay
121, the second pixel electrode 122, top electrode 13, encapsulated layer
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description of the present invention and simplification of the description, rather than the machine or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the present invention, but it is not intended to limit the scope of the invention.
The embodiment of the invention provides a kind of display panels, including substrate, the display module and sensing of formation on substrate
Device assembly and control module；Wherein, display module is configured as display picture；It is aobvious to be configured as detection for sensor module
Show the touching signals generated when touch-control occurs for mould group, touching signals are sent to control module, and sent according to control module
Audio signal exports sound wave；Control module is configured as determining the position of touch of touch-control according to touching signals, determining and touch-control position
Corresponding audio signal is set, and audio signal is sent to sensor module.
In above structure, sensor module has the function of vocal function and touch control detection, the setting based on sensor module,
So that display panel has the function of autonomous sounding, and has the function of output sound wave corresponding with position of touch.Therefore, originally
The display panel that inventive embodiments provide is a kind of intelligent touch sound feedback system of touch-control shucks sounding.
Control module have according to touching signals determine position of touch, determination audio signal corresponding with position of touch, with
And audio signal is sent to the function of sensor module.Control module can be the controller for integrating above-mentioned function, control core
Piece etc..
Control module can be configured as the image content of determining touch position, obtain sound corresponding with image content
Frequency signal.Correspondingly, sensor module can be configured as according to audio signal corresponding with image content, output and picture
The corresponding sound wave of content.For example, shown in touch-control display module picture cat when, sensor module is sent according to control module
The sound wave of audio signal output mew.
Control module can be configured as after determining audio signal corresponding with position of touch, handle audio signal, and
By treated, audio signal is sent to sensor module.Correspondingly, sensor module is configured as according to treated audio
Signal output directional sound wave, to realize the orientation sounding of display panel.
There are many setting positions of sensor module, for example, going out for display module can be arranged in sensor module with flood
In smooth surface, sensor module be can integrate in the structure sheaf of display module etc., below to the setting position of sensor module into
Row is discussed in detail.
First way, sensor module are in layer structure, and sensor module is fitted on the light-emitting surface of display module.
As shown in Figure 1, sensor module includes the top electrode 1 being stacked, piezoelectric membrane 2, lower electrode 3 and backboard 4,
In, lower electrode 3 includes lower electrode unit 31 of multiple array arrangements on backboard 4；Backboard 4 is bonded in the light-emitting surface of display module
On.
Above-mentioned sensor module is properly termed as piezoelectric transducer, the working principle of piezoelectric transducer are as follows: the first process, benefit
With inverse piezoelectric effect, applies voltage pulse signal between electrode and make piezoelectric membrane 2 deformation occurs, the deformation of piezoelectric membrane 2
Surrounding medium vibration is pushed, ultrasonic wave is generated；Second process, using positive piezoelectric effect, piezoelectric membrane 2 receives ultrasonic wave and sends out
Raw deformation generates high frequency voltage and amplifies output.
Top electrode 1 can be face electrode, can be made of transparent metals such as ITO.Piezoelectric membrane 2 can be whole face structure,
It can be PVDF piezoelectric membrane, PET piezoelectric membrane etc..Lower electrode 3 includes the lower electrode unit 31 of multiple array arrangements, lower electrode
There are many shapes of unit 31, such as lower orthographic projection of the electrode unit 31 on backboard 4 is square, rectangle, circle, triangle
Shape etc., can be according to actual setting.
Sensor module shown in FIG. 1, the technique comprising the following three steps: first can be made by following technique
Step obtains backboard 4, and the lower electrode unit 31 of array arrangement is formed on backboard 4.Wherein, backboard 4 can be glass substrate, thoroughly
The transparent organic films such as bright PI film (Kapton).Specifically, the metal layer of flood can be deposited on backboard 4, then lead to
Patterned process is crossed, etching sheet metal obtains multiple lower electrode units 31.Second step deposits whole on multiple lower electrode units 31
The piezoelectric membrane 2 in face, and brilliant China's processing of annealing is carried out to piezoelectric membrane 2.Third step deposits on entire on piezoelectric membrane 2
Electrode 1 is polarised piezoelectric membrane 2；Or first polarized piezoelectric film 2, then pass through viscose glue (such as OCA optical cement, AB glue
Deng), entire top electrode 1 is conformed on piezoelectric membrane 2.Section driving circuit can also be made on backboard 4, improve signal
Sensitivity, while the complexity of peripheral circuit is reduced, TFT switch, shift register rank scanning circuit are made such as on backboard 4
Deng.
The second way, sensor module are integrated in the structure sheaf of display module.
Display panel includes multiple sensor modules being intervally arranged, and each sensor module includes powering on of being stacked
Multiple organic light-emitting structures in pole, piezoelectric membrane and lower electrode, multiple sensor modules and display module are collectively formed in picture
Element is defined in layer and is arranged alternately, while each sensor module is electrically connected with corresponding sensor thin film transistor (TFT), is passed
Sensor TFT and driving thin film transistor (TFT) (TFT) be collectively formed on the substrate of display module and be arranged alternately, driving TFT with it is right
The organic light-emitting structure electrical connection answered, for driving corresponding organic light-emitting structure to shine.
Specifically, as shown in Figures 2 and 3, the display module and sensor module being formed on substrate 5 include film crystal
Tube layer 6, insulating layer 7, first electrode layer 8, pixel defining layer 9, organic light-emitting structure 10, piezoelectric membrane 11, the second electrode lay 12
With encapsulated layer 13；Wherein,
Tft layer 6 is formed on substrate 5, and tft layer 6 includes the driving TFT 61 being arranged alternately and passes
Sensor TFT 62.Driving TFT's 61 and sensor TFT 62 is arranged alternately there are many modes, can be according to some cycles
Rule is arranged alternately, and is also possible to random arbitrarily be arranged alternately.For example, tft layer 6 includes multiple film crystals
Pipe unit, each film crystal pipe unit include driving a TFT 61 and a sensor TFT 62 etc..Insulating layer 7 is formed in
On tft layer 6.Via hole is offered on insulating layer 7, is crossed hole surface and is equipped with metal layer, for realizing between different layers
Electrical connection.Insulating layer 7 can be resin layer etc..
First electrode layer 8 is formed on insulating layer 7, and first electrode layer 8 includes the first picture that is mutually indepedent and being arranged alternately
Plain electrode 81 and lower electrode 82, wherein the first pixel electrode 81 passes through the first via hole on insulating layer 7 and corresponding driving TFT
61 electrical connections, lower electrode 82 are electrically connected by the second via hole on insulating layer 7 with corresponding sensor TFT 62.First pixel electricity
Pole 81 and lower electrode 82 are arranged alternately there are many modes, similar to the arrangement mode of thin film transistor (TFT), the first pixel electrode 81
It can be arranged alternately, can also be arbitrarily arranged alternately with random according to the rule of some cycles with lower electrode 82.
Pixel defining layer 9 is formed in first electrode layer 8, pixel defining layer 9 mark off the pixel region that is arranged alternately and
Sensor region.Organic light-emitting structure 10 is formed in the pixel region of pixel defining layer 9, and piezoelectric membrane 11 is formed in pixel circle
In the sensor region of given layer 9, organic light-emitting structure 10 is electrically connected with corresponding first pixel electrode 81, voltage film 11 with it is right
The lower electrode 82 answered is electrically connected.
Organic light-emitting structure 10 is made of luminous organic material, when the two sides of organic light-emitting structure 10 apply voltage, is had
Machine light emitting structure 10 shines.Based on the principle of luminosity of organic light-emitting structure 10, organic light-emitting structure 10 is in first electrode layer 8
Orthographic projection and the first pixel electrode 81 are at least partly overlapping, optionally, positive throwing of the organic light-emitting structure 10 in first electrode layer 8
Shadow is located in the region at corresponding first pixel electrode, 81 place.Working principle based on sensor module and sensor module,
Orthographic projection of the voltage film 11 in first electrode layer 8 is at least partly overlapping with corresponding lower electrode 82, optionally, voltage film
11 in the region that the orthographic projection in first electrode layer 8 is located at corresponding 82 place of lower electrode.
The second electrode lay 12 is formed in pixel defining layer 9, and the second electrode lay 12 includes mutually indepedent and is arranged alternately
Second pixel electrode 121 and top electrode 122, orthographic projection covering of second pixel electrode 121 in pixel defining layer 9 is corresponding to be had
Machine light emitting structure 10, orthographic projection of the top electrode 122 in pixel defining layer 9 cover corresponding voltage film 11.Second pixel electricity
Pole 121 and top electrode 122 to be arranged alternately mode identical as the arrangement mode of sensor region and pixel region.13 shape of encapsulated layer
At on the second electrode lay 12.Encapsulated layer 13 is covered on the second electrode lay 12, is played a protective role to internal structure.Encapsulated layer
13 can be TFE (tetrafluoroethene) layer etc..
Fig. 2 and scheme shown in Fig. 3, sensor module is integrated into display module, is independently sent out in realization display panel
While sound, does not increase display module, the thickness equidimension of display screen, be conducive to the lightening processing of display module, display screen.
Fig. 2 and display panel shown in Fig. 3 can be made by following technique, which includes following multiple steps:
Deposited metal layer on substrate 5 forms the pixel TFT 61 being arranged alternately and sensor TFT 62 after patterning；Deposit one layer of resin
Layer is insulating layer 7, and resin layer is covered on pixel TFT 61, sensor TFT 62 and substrate 5；Via hole is formed on the resin layer,
ITO metal layer is deposited in via hole, deposits the first pixel electrode 81 and lower electricity mutually indepedent and be arranged alternately on the resin layer
Pole 82；Pixel deposition defines layer 9 on resin layer, the first pixel electrode 81 and lower electrode 82, to the specific bit of pixel defining layer 9
It sets and is punched, multiple via holes are opened up in pixel defining layer 9, the first via hole is located on the first pixel electrode 81, the second via hole
On lower electrode 82, luminous organic material is deposited in the first via hole, obtains organic light-emitting structure 10, the shape in the second via hole
At piezoelectric membrane 11；By deposited metal layer and patterned metal layer, the second pixel in covering organic light-emitting structure 10 is formed
Electrode 121, and the top electrode 122 on covering piezoelectric membrane 11 is formed, obtain multiple pixel units and multiple sensor modules；
Form encapsulated layer 13, specially TFE encapsulated layer.
Lower electrode 82 in sensor module can pass through anode i.e. the first picture in a patterning processes and pixel unit
Plain 81 same layer of electrode setting, can also be layered by the anode in different patterning processes and pixel unit and be arranged.Equally, sensor
Top electrode 122 in component can pass through cathode 121 same layer of i.e. the second pixel electrode in a patterning processes and pixel unit
Setting can also be layered by the cathode in different patterning processes and pixel unit and is arranged.
Since TFE encapsulated layer is very thin, light-emitting surface of the sensor module apart from display panel is closer, therefore is encapsulated using TFE
Layer can preferably retain the energy of the ultrasonic wave of transmission.
The embodiment of the invention also provides a kind of display device, the display panel including the above-mentioned offer of the embodiment of the present invention.
Display device has the advantages that display panel, and details are not described herein for the embodiment of the present invention.
The embodiment of the invention also provides a kind of control methods of display panel.Referring to shown in Fig. 4, the embodiment of the present invention is mentioned
The control method of the display panel of confession the following steps are included:
The touching signals generated when touch-control occur for step 101, sensor module detection display module, and touching signals are sent
To control module.
Step 102, control module determine the position of touch of touch-control according to touching signals.
Step 103, control module determine audio signal corresponding with position of touch.
Step 104, control module send audio signal to sensor module.
Step 105, sensor module export sound wave according to audio signal.
By the control to sensor module and control module, control the display panel through the autonomous sounding of sensor module,
And export sound wave corresponding with position of touch.
When sensor module includes the top electrode being stacked, piezoelectric membrane, lower electrode and backboard, lower electrode includes multiple
When the lower electrode unit of array arrangement, above-mentioned steps 101 can be realized by following steps: firstly, sensor module issues the
One ultrasonic signal, and electric signal is generated according to the second ultrasonic signal, the second ultrasonic signal is that the first ultrasonic signal exists
The reflection signal that the touch position of the touch-control generates when reflecting；Secondly, sensor module use and position of touch pair
The lower electrode unit answered exports electric signal to control module.At this moment, above-mentioned steps 102 can be accomplished by the following way: control
Module determines the position of touch of touch-control according to the position for the lower electrode unit for sending electric signal.
Below with reference to Fig. 5, citing introduction is carried out to the above process.
Referring to Fig. 5, the T1 period is the touch-control period of display panel, when the T2 period is tactile (sound) feedback of display panel
Section.Top electrode is provided with the T3 period, and lower electrode is provided with T4 period and T5 period.Within the T3 period, to the upper of sensor module
Electrode applies voltage pulse signal, so that deformation occurs for piezoelectric membrane, generates the first ultrasonic signal and stops after the T3 period
Only apply voltage pulse signal；During top electrode issues the first ultrasonic signal, if user's finger presses display module,
It is then reflected when the first ultrasound signal transmission to finger, obtains reflection signal i.e. the second ultrasonic signal, the second ultrasonic wave
Signal is transmitted on piezoelectric membrane, and piezoelectric membrane generates electric signal, and use and pressing position pair according to the second ultrasonic signal
The lower electrode unit conveying electric signal answered to control module, completed within the T4 period by the above process；Control module is according to conveying electricity
The position of the lower electrode unit of signal determines pressing position of the finger in display module, and determination is corresponding with pressing position
Audio signal is sent to sensor module by audio signal；Within the T5 period, sound that sensor module is sent according to control module
Frequency signal exports sound wave.
Above structure based on sensor module, control module can be by handling determining audio signal, will
Audio signal that treated is sent to sensor module, realizes sensor module output directional sound wave, and then realize display panel
Orientation sounding.
Control module handle audio signal, in a manner of realizing sensor module output directional sound wave there are many, for example, adopting
With sound phased-array technique, audio signal is respectively loaded on each lower electrode unit with preset phase delay, to control acoustic beam
Deflection and focusing, so that sensor module issues orientation sound wave.
For another example, using parametric acoustic array technology, control module is after determining audio signal corresponding with position of touch, processing
The ultrasonic wave of different frequency is sent to the different zones of lower electrode, is located at same by audio signal to the ultrasonic wave of different frequency
The frequency for the ultrasonic wave that lower electrode unit in region receives is identical, and correspondingly, sensor module is by being located at different zones
Interior lower electrode unit issues the ultrasonic wave of different frequency, and non-linear interaction can occur for the ultrasonic wave of different frequency, to demodulate
Orient sound wave.Compared to using sound phased-array technique, more low-angle and more remote can be realized using parametric acoustic array technology
Orient sonic transmissions.
Illustratively, sensor module includes first sensor array and second sensor array, using parametric acoustic array skill
Art, control module handle audio signal, obtain the first audio signal and the second audio signal, and control module is by the first sound
Frequency signal is sent to first sensor array, and the second audio signal is sent to second sensor array, correspondingly, sensor group
First sensor array in part issues third ultrasonic signal according to the first audio signal, and second sensor array is according to second
Audio signal issues the 4th ultrasonic signal, wherein non-thread sexual intercourse can occur for third ultrasonic signal and the 4th ultrasonic signal
Mutually, to demodulate orientation sound wave (difference frequency wave).
When control module uses parametric acoustic array technology to processing audio signal, control module may include signal processing mould
The components such as block, power amplifier, impedance matching circuit, wherein signal processing module for modulating audio into ultrasonic signal,
Power amplifier is used to amplify the power of ultrasonic signal, and impedance matching circuit is used to carry out impedance matching to ultrasonic signal.
A kind of display panel provided by the present invention, display device and its control method are described in detail above,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；At the same time, for those skilled in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (10)
1. a kind of display panel, which is characterized in that including substrate, the display module and sensor group of formation over the substrate
Part and control module；
The display module is configured as display picture；
The sensor module is configured as the touching signals generated when detecting the display module generation touch-control, by the touching
Control signal is sent to the control module, and exports sound wave according to the audio signal that the control module is sent；
The control module is configured as determining the position of touch of the touch-control according to the touching signals, the determining and touching
The corresponding audio signal in position is controlled, and the audio signal is sent to sensor module.
2. display panel according to claim 1, which is characterized in that the control module is configured to determine that the touching
The image content at position is controlled, audio signal corresponding with the image content is obtained.
3. display panel according to claim 1, which is characterized in that the control module is configured as in determining and institute
After stating the corresponding audio signal of position of touch, the audio signal is handled, and the audio signal is sent to institute by treated
State sensor module；
The sensor module is configured as according to treated the audio signal output directional sound wave.
4. display panel according to claim 1, which is characterized in that the sensor module includes powering on of being stacked
Pole, piezoelectric membrane, lower electrode and backboard, wherein the lower electrode includes lower electrode of multiple array arrangements on the backboard
Unit；The backboard is bonded on the light-emitting surface of the display module.
5. display panel according to claim 1, which is characterized in that form display module and sensing over the substrate
Device assembly includes:
Tft layer over the substrate is formed, the tft layer includes the driving film crystal being arranged alternately
Pipe and sensor thin film transistor；
The insulating layer being formed on tft layer；
First electrode layer on the insulating layer is formed, the first electrode layer includes the first pixel that is mutually indepedent and being arranged alternately
Electrode and lower electrode；First pixel electrode passes through the first via hole on the insulating layer and corresponding driving thin film transistor (TFT)
Electrical connection, the lower electrode are electrically connected by the second via hole on the insulating layer with corresponding sensor thin film transistor；
The pixel defining layer being formed in the first electrode layer, the pixel defining layer mark off the pixel region being arranged alternately
And sensor region；
The organic light-emitting structure being formed in the pixel region and the piezoelectric membrane being formed in the sensor region,
In, the organic light-emitting structure is electrically connected with corresponding first pixel electrode, and the voltage film is electrically connected with corresponding lower electrode
It connects；
The second electrode lay being formed in the pixel defining layer, the second electrode lay include mutually indepedent and are arranged alternately
Second pixel electrode and top electrode, orthographic projection covering of second pixel electrode in the pixel defining layer are corresponding organic
Light emitting structure, orthographic projection of the top electrode in the pixel defining layer cover corresponding voltage film；
The encapsulated layer being formed on the second electrode lay.
6. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-5.
7. a kind of control method of display panel, which is characterized in that the control method includes:
The touching signals generated when touch-control occur for sensor module detection display module, and the touching signals are sent to control mould
Block；
The control module determines the position of touch of the touch-control according to the touching signals；
The control module determines audio signal corresponding with the position of touch；
The control module sends the audio signal to the sensor module；
The sensor module exports sound wave according to the audio signal.
8. control method according to claim 7, which is characterized in that the sensor module includes powering on of being stacked
Pole, piezoelectric membrane, lower electrode and backboard, the lower electrode include the lower electrode unit of multiple array arrangements；The sensor group
The touching signals generated when touch-control occur for part detection display module, and the touching signals are occurred to control module, comprising:
The sensor module issues the first ultrasonic signal, and generates electric signal according to the second ultrasonic signal, and described second
Ultrasonic signal is the reflection signal that first ultrasonic signal is generated when the touch position of the touch-control reflects；
The sensor module use lower electrode unit corresponding with the position of touch exports the electric signal to the control
Module；
The control module determines the position of touch of the touch-control according to the touching signals, comprising:
The control module determines the position of touch of the touch-control according to the position for the lower electrode unit for sending the electric signal.
9. control method according to claim 8, which is characterized in that the control module is to the sensor module
Send the audio signal, comprising:
The audio signal is respectively loaded on each lower electrode unit with preset phase delay, so that the sensor module
Issue orientation sound wave.
10. control method according to claim 8, which is characterized in that in control module determination and the touching
After controlling the corresponding audio signal in position, the method also includes:
The control module handles the ultrasonic wave of the audio signal to different frequency；
The control module sends the audio signal to the sensor module, comprising:
The ultrasonic wave of the different frequency is sent to the different zones of the lower electrode, the lower electrode list in the same area
The frequency for the ultrasonic wave that member receives is identical；
The sensor module exports sound wave according to the audio signal, comprising:
The sensor module issues the ultrasonic wave of different frequency, the difference by the lower electrode unit being located in different zones
Non-linear interaction can occur for the ultrasonic wave of frequency, to demodulate orientation sound wave.
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