CN110110612A - Ultrasonic fingerprint identifies mould group and the display panel including it - Google Patents
Ultrasonic fingerprint identifies mould group and the display panel including it Download PDFInfo
- Publication number
- CN110110612A CN110110612A CN201910314346.1A CN201910314346A CN110110612A CN 110110612 A CN110110612 A CN 110110612A CN 201910314346 A CN201910314346 A CN 201910314346A CN 110110612 A CN110110612 A CN 110110612A
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- Prior art keywords
- mould group
- display panel
- layer
- ultrasonic fingerprint
- heat dissipating
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Image Input (AREA)
Abstract
The present invention proposes a kind of ultrasonic fingerprint identification mould group and the display panel including it.Ultrasonic fingerprint identification mould group includes: electrode；One piezoelectric material layer is arranged on the lower electrode；One top electrode is arranged on the piezoelectric material layer；And a heat dissipating layer, it is disposed over the side of at least one of the lower electrode, the piezoelectric material layer and the top electrode.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of ultrasonic fingerprint identification mould group and the display surface including it
Plate.
Background technique
Ultrasonic fingerprint identification technology not will receive the interference of water and greasy dirt, have stronger adaptive capacity to environment, therefore
Ultrasonic fingerprint identification technology is widely applied.For example, ultrasonic fingerprint identification technology is used for every field, can be promoted
The safety of the electronic products such as mobile phone, computer, plate and access control system.It is compared with traditional numerical ciphers, due to unlocked by fingerprint
Rapidity, ultrasonic fingerprint identification technology brings many conveniences to people's lives.
Ultrasonic fingerprint identifies that mould group has typical piezoelectric element structure 100, as shown in Figure 1A, including top electrode 101,
Piezoelectric thin film layer 102 and lower electrode 103.In addition, some piezoelectric element structures 100 have construction as shown in Figure 1B, it is additional
One insulating layer 104 is set, to increase the cavity of piezoelectric material vibration, is conducive to ultrasonic wave mould group and emits stronger acoustic pressure, promoted most
Received electric signal and signal-to-noise ratio etc. afterwards.Piezoelectric thin film layer inputing power is given, so that it is converted into mechanical energy and high-frequency vibration occurs, from
And ultrasonic wave occurs；When ultrasonic wave fires back, it can also cause the vibration of piezoelectric thin film layer, reconvert is at electric energy.However, this
The efficiency of energy conversion is very low, and usually less than 10%.In addition, a large amount of energy loss is had in the conversion process of energy, institute
The energy of loss is to be converted into thermal energy.Generated thermal energy can destroy the performance of ultrasonic fingerprint identification mould group, refer to ultrasonic wave
Line identification mould group gradually fails.Also, the material of piezoelectric thin film layer is all thermoelectric material, extra heat can generate thermocurrent, make
The noise for obtaining fingerprint recognition increases, to influence the precision of fingerprint recognition.Therefore the performance of current ultrasonic fingerprint Identification sensor
And it is not fully up to expectations.
Therefore, it is necessary to a kind of ultrasonic fingerprint identification mould group and the display panel including it be provided, to solve existing skill
The problems of art.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of ultrasonic fingerprint identification mould group and including its display panel
The technical problem for having the performance of ultrasonic fingerprint identification mould group in technology bad.
In order to solve the above technical problems, the present invention provides a kind of ultrasonic fingerprint identification mould group characterized by comprising
Electrode once；
One piezoelectric material layer is arranged on the lower electrode；
One top electrode is arranged on the piezoelectric material layer；And
One heat dissipating layer is disposed at least one of the lower electrode, the piezoelectric material layer and the top electrode
Side.
In ultrasonic fingerprint identification mould group of the invention, the material of the lower electrode and the top electrode be silver, aluminium,
Molybdenum, gold, chromium, nickel, copper, platinum or above-mentioned material any combination alloy.
In ultrasonic fingerprint identification mould group of the invention, the material of the piezoelectric material layer be aluminium nitride, lead zirconate titanate,
Kynoar or Kynoar-trifluoro-ethylene copolymer.
In ultrasonic fingerprint identification mould group of the invention, the heat dissipating layer is that thermal grease layer, liquid metal for conducting heat dissipate
Backing or silica heat dissipating layer.
In ultrasonic fingerprint identification mould group of the invention, the thickness of the heat dissipating layer is between 1 micron to 100 microns.
In ultrasonic fingerprint identification mould group of the invention, the thickness of the heat dissipating layer is between 30 microns to 50 microns.
The present invention also provides a kind of display panels, which is characterized in that the display panel includes ultrasonic wave as described above
Fingerprint recognition mould group.
In display panel of the present invention, the display panel has a display area, and the ultrasonic fingerprint is known
Any specific position of the display area is arranged in other mould group.
In display panel of the present invention, the display panel is organic LED panel or LCD display
Plate.
In display panel of the present invention, the display panel further includes a touch control layer, and the touch control layer is plug-in
Formula touch control layer, On-Cell touch control layer or In-Cell touch control layer.
Compared to the prior art, the present invention proposes a kind of ultrasonic fingerprint identification mould group and the display panel including it.It is logical
It crosses and heat dissipating layer is set in the side of ultrasonic fingerprint identification mould group, piezoelectric material layer can be vibrated to the extra heat generated and inhaled
It receives and spreads.Therefore, ultrasonic fingerprint identification mould group can be protected, and improve its recognition effect, stability and service life.
Also, heat dissipating layer is located at the side of ultrasonic fingerprint identification mould group, the thickness of mould group not will increase in this way, it is lightening to be conducive to its.This
Outside, the heat absorption that the side of ultrasonic fingerprint identification mould group is arranged in and heat dissipation effect are also than being arranged above top electrode and lower electrode
Lower section is preferable, can function well as the effect of heat absorption and heat dissipation.
Detailed description of the invention
Figure 1A shows a kind of side sectional view of piezoelectric element structure according to prior art.
Figure 1B shows the side sectional view of another piezoelectric element structure according to prior art.
Fig. 2A shows the side sectional view of ultrasonic fingerprint identification mould group according to a first embodiment of the present invention.
Fig. 2 B shows the side sectional view of the identification mould group of ultrasonic fingerprint according to a second embodiment of the present invention.
Fig. 3 A shows the plan view of the display area of display panel according to a first embodiment of the present invention.
Fig. 3 B shows the plan view of the display area of display panel according to a second embodiment of the present invention.
Fig. 4 A shows the side sectional view of liquid crystal display panel according to a first embodiment of the present invention.
Fig. 4 B shows the side sectional view of liquid crystal display panel according to a second embodiment of the present invention.
Fig. 4 C shows the side sectional view of liquid crystal display panel according to a second embodiment of the present invention.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.The direction term that the present invention is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outside", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is to be given the same reference numerals in the figure.
Fig. 2A is please referred to, Fig. 2A shows the side, sectional of ultrasonic fingerprint identification mould group according to a first embodiment of the present invention
Figure.The present invention proposes that a kind of ultrasonic fingerprint identification mould group 200, the ultrasonic fingerprint identification mould group 200 include:
Electrode 203 once；
One piezoelectric material layer 202 is arranged on the lower electrode 203；
One top electrode 201 is arranged on the piezoelectric material layer 202；And
One heat dissipating layer 204 is disposed over the lower electrode 203, the piezoelectric material layer 202 and the top electrode 201
The side of at least one.
In the present embodiment, the lower electrode 203 and the material of the top electrode 201 are silver (Ag), aluminium (Al), molybdenum
(Mo), the alloy of any combination of golden (Au), chromium (Cr), nickel (Ni), copper (CU), platinum (Pt) or above-mentioned material.
In the present embodiment, the material of the piezoelectric material layer is aluminium nitride (AlN), lead zirconate titanate (PZT), polyvinylidene fluoride
Alkene (PVDF) or Kynoar-trifluoro-ethylene copolymer (P (VDF-TrFE)).
The heat dissipating layer 204 can be thermal grease layer, liquid metal for conducting heat cooling fin or silica heat dissipating layer.Due to
These materials all have excellent heat-sinking capability, and ultrasonic fingerprint can be identified to heat absorption and expansion excessive in mould group 200
It sheds, so heat will not be accumulated in ultrasonic fingerprint identification mould group 200, ultrasonic fingerprint identifies that mould group 200 can be by
To protection.However, the present invention to the material of the heat dissipating layer 204 make it is specific limit, as long as the heat dissipating layer 204 can will be warm
Amount is absorbed and is spread out, and the material of the heat dissipating layer 204 falls in the present invention and is intended in the range of protecting.
It is understood that in order to reach heat absorption and heat dissipation effect, the heat dissipating layer 204 is disposed over the lower electrode
203, the side of at least one of the piezoelectric material layer 202 and the top electrode 201.
For example, the heat dissipating layer 204 can be set into the covering lower electrode 203, the piezoelectric material layer 202 with it is described
The side of the entire surrounding of at least one of top electrode 201.Alternatively, the covering lower electricity can be set into the heat dissipating layer 204
The side of the only portion of at least one of pole 203, the piezoelectric material layer 202 and the top electrode 201, such as only left and right
Side.
In addition, the heat dissipating layer 204, which can be set into, has a predetermined thickness (i.e. height), the thickness can cover whole
The side of the side of a lower electrode 203, the entirely side of the piezoelectric material layer 202 and the entire top electrode 201, such as
Shown in Fig. 2A.Alternatively, the heat dissipating layer 204, which can be set into, has a predetermined thickness (i.e. height), the thickness can be covered
The side of the side of the entire lower electrode 203, the entirely side of the piezoelectric material layer 202 and part top electrode 201, such as schemes
Shown in 2B.Preferably, the thickness (i.e. height) of the heat dissipating layer is between 1 micron to 100 microns.It is furthermore preferred that the heat dissipation
The thickness (i.e. height) of layer is between 30 microns to 50 microns.
Also, if the heat dissipating layer 204 can cover when ultrasonic fingerprint identification mould group has the structure as shown in Figure 1B
The side of at least one of the insulating layer 104, the lower electrode 103, the piezoelectric material layer 102 and the top electrode 101.
By identifying that heat dissipating layer is arranged in the side of mould group in ultrasonic fingerprint, piezoelectric material layer can be vibrated into the more of generation
Remaining heat absorption and diffusion.Therefore, ultrasonic fingerprint identification mould group can be protected, and improve its recognition effect, stability
And service life.Also, heat dissipating layer is located at the side of ultrasonic fingerprint identification mould group, it not will increase the thickness of mould group in this way, be conducive to
Its is lightening.In addition, the heat absorption that the side of ultrasonic fingerprint identification mould group is arranged in and heat dissipation effect are also than being arranged in top electrode
Top and lower base part are preferable, can function well as the effect of heat absorption and heat dissipation.
The present invention does not make specific restriction to the setting position of the heat dissipating layer 204 and thickness, as long as the heat dissipating layer 204 can
By heat absorption and to spread out, play heat dissipation effect, the setting position of the heat dissipating layer 204 and thickness fall in the present invention
It is intended in the range of protecting.
The present invention also provides a kind of display panel, the display panel can be used for such as mobile phone, computer, plate and gate inhibition system
System.For example, the display panel can be the face Organic Light Emitting Diode (organic light emitting diode, OLED)
Plate or liquid crystal display (liquid crystal display, LCD) panel.
The display panel includes ultrasonic fingerprint identification mould group 200 as described above.
The display panel has a display area 300, and the ultrasonic fingerprint identification mould group 200 is arranged in the display
Any specific position in region 300.For example, as shown in Figure 3A, the ultrasonic fingerprint identification mould group 200 can be set
The position of the close bottom of the display area 300, the entire bottom without taking the display area 300.In another example such as
Shown in Fig. 3 B, the ultrasonic fingerprint identification mould group 200 be can be set in the entire bottom of the display area 300.The present invention
Specific restriction is not made to the setting position of ultrasonic fingerprint identification mould group 200, as long as the ultrasonic fingerprint identifies mould group
200 can play the effect of fingerprint recognition when finger presses, and the setting position of the ultrasonic fingerprint identification mould group 200 is fallen
In the range of the present invention is to be protected.
It is to be illustrated so that display panel is liquid crystal display panel as an example below.
A referring to figure 4. shows the side sectional view of liquid crystal display panel according to a first embodiment of the present invention.It is described
Liquid crystal display panel 400 includes: backlight 41, lower polarizer 42, thin film transistor (TFT) (thin film from lower to upper
Transistor, TFT) substrate 43, ultrasonic fingerprint identification mould group 44, color film (color filter, CF) layer 45, opposite substrate
46, upper polarizer 47, touch control layer 48, protective layer 49.In addition, the liquid crystal display panel 400 further includes integrated circuit
(integrated circuit, IC) 51 and flexible printer circuit version (Flexible Printed Circuit, FPC) 52.
CF layer 45 includes red color resistance R, green color blocking G, blue color blocking B.
It is formed with circuit in TFT substrate 43, including unlatching/closing grid for controlling pixel region, source electrode and drain electrode,
And transmitting and reception for ultrasonic wave.
Protective layer 49 is translucent material, and protective layer 49 is for protecting display and fingerprint recognition mould group, such as its material can be with
It is glass, sapphire and transparent polymer material etc..
In the present embodiment, touch control layer 48 above upper polarizer 47, therefore the touch control layer 48 be external hanging type touch-control
Layer.
Recognition effect, stability and the service life of ultrasonic fingerprint identification mould group can be improved in the addition of heat dissipating layer.
B referring to figure 4., the side sectional view of the liquid crystal display panel of display according to a second embodiment of the present invention.It is described
Liquid crystal display panel 400 includes: backlight 41, lower polarizer 42, thin film transistor (TFT) (thin film from lower to upper
Transistor, TFT) substrate 43, ultrasonic fingerprint identification mould group 44, color film (color filter, CF) layer 45, opposite substrate
46, touch control layer 48, upper polarizer 47, protective layer 49.In addition, the liquid crystal display panel 400 further includes: integrated circuit
(integrated circuit, IC) 51 and flexible printer circuit version (Flexible Printed Circuit, FPC) 52.
The present embodiment is identical as the part-structure technical characteristic of the first embodiment of earlier figures 4A, therefore details are not described herein.
But the difference of the first embodiment of the present embodiment and earlier figures 4A is that touch control layer 48 is position in upper polarizer 47
Between opposite substrate 46, therefore the touch control layer is On-Cell touch control layer.
Similar with the effect of first embodiment, the identification effect of ultrasonic fingerprint identification mould group can be improved in the addition of heat dissipating layer
Fruit, stability and service life.
C referring to figure 4., the side sectional view of the liquid crystal display panel of display according to a third embodiment of the present invention.It is described
Liquid crystal display panel 400 includes: backlight 41, lower polarizer 42, thin film transistor (TFT) (thin film from lower to upper
Transistor, TFT) substrate 43, ultrasonic fingerprint identification mould group 44, color film (color filter, CF) layer 45, touch control layer
48, opposite substrate 46, upper polarizer 47, protective layer 49.In addition, the liquid crystal display panel 400 further includes: integrated circuit
(integrated circuit, IC) 51 and flexible printer circuit version (Flexible Printed Circuit, FPC) 52.
The present embodiment is identical as the part-structure technical characteristic of the first embodiment of earlier figures 4A, therefore details are not described herein.
But the difference of the first embodiment of the present embodiment and earlier figures 4A is that touch control layer 48 is position in liquid crystal cell
In (liquid crystal cell), therefore the touch control layer is In-Cell touch control layer.
Similar with the effect of first embodiment, the identification effect of ultrasonic fingerprint identification mould group can be improved in the addition of heat dissipating layer
Fruit, stability and service life.
Compared to the prior art, the present invention proposes a kind of ultrasonic fingerprint identification mould group and the display panel including it.It is logical
It crosses and heat dissipating layer is set in the side of ultrasonic fingerprint identification mould group, piezoelectric material layer can be vibrated to the extra heat generated and inhaled
It receives and spreads.Therefore, ultrasonic fingerprint identification mould group can be protected, and improve its recognition effect, stability and service life.
Also, heat dissipating layer is located at the side of ultrasonic fingerprint identification mould group, the thickness of mould group not will increase in this way, it is lightening to be conducive to its.This
Outside, the heat absorption that the side of ultrasonic fingerprint identification mould group is arranged in and heat dissipation effect are also than being arranged above top electrode and lower electrode
Lower section is preferable, can function well as the effect of heat absorption and heat dissipation.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of ultrasonic fingerprint identifies mould group characterized by comprising
Electrode once；
One piezoelectric material layer is arranged on the lower electrode；
One top electrode is arranged on the piezoelectric material layer；And
One heat dissipating layer is disposed over the side of at least one of the lower electrode, the piezoelectric material layer and the top electrode.
2. ultrasonic fingerprint according to claim 1 identifies mould group, which is characterized in that the lower electrode and the top electrode
Material be silver, aluminium, molybdenum, gold, chromium, nickel, copper, platinum or above-mentioned material any combination alloy.
3. ultrasonic fingerprint according to claim 1 identifies mould group, which is characterized in that the material of the piezoelectric material layer is
Aluminium nitride, lead zirconate titanate, Kynoar or Kynoar-trifluoro-ethylene copolymer.
4. ultrasonic fingerprint according to claim 1 identifies mould group, which is characterized in that the heat dissipating layer is thermal grease
Layer, liquid metal for conducting heat cooling fin or silica heat dissipating layer.
5. ultrasonic fingerprint according to claim 1 identifies mould group, which is characterized in that the thickness of the heat dissipating layer is micro- 1
Rice is between 100 microns.
6. ultrasonic fingerprint according to claim 5 identifies mould group, which is characterized in that the thickness of the heat dissipating layer is micro- 30
Rice is between 50 microns.
7. a kind of display panel, which is characterized in that the display panel includes the ultrasound as described in any in claim 1 to 6
Wave fingerprint recognition mould group.
8. display panel according to claim 7, which is characterized in that the display panel has a display area, described
Any specific position of the display area is arranged in ultrasonic fingerprint identification mould group.
9. display panel according to claim 7, which is characterized in that the display panel is organic LED panel
Or liquid crystal display panel.
10. display panel according to claim 9, which is characterized in that the display panel further includes a touch control layer, described
Touch control layer is external hanging type touch control layer, On-Cell touch control layer or In-Cell touch control layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314346.1A CN110110612A (en) | 2019-04-18 | 2019-04-18 | Ultrasonic fingerprint identifies mould group and the display panel including it |
| PCT/CN2019/105924 WO2020211279A1 (en) | 2019-04-18 | 2019-09-16 | Ultrasonic fingerprint recognition module and display panel comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314346.1A CN110110612A (en) | 2019-04-18 | 2019-04-18 | Ultrasonic fingerprint identifies mould group and the display panel including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110110612A true CN110110612A (en) | 2019-08-09 |
Family
ID=67485846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314346.1A Pending CN110110612A (en) | 2019-04-18 | 2019-04-18 | Ultrasonic fingerprint identifies mould group and the display panel including it |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110110612A (en) |
| WO (1) | WO2020211279A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111738227A (en) * | 2020-07-31 | 2020-10-02 | 深圳市汇顶科技股份有限公司 | Ultrasonic fingerprint identification device and electronic equipment |
| WO2020211279A1 (en) * | 2019-04-18 | 2020-10-22 | 武汉华星光电技术有限公司 | Ultrasonic fingerprint recognition module and display panel comprising same |
| CN113391724A (en) * | 2021-06-04 | 2021-09-14 | 江西欧迈斯微电子有限公司 | Pressure module, touch panel and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108388847A (en) * | 2018-02-06 | 2018-08-10 | 武汉华星光电半导体显示技术有限公司 | A kind of display device |
| US20180373913A1 (en) * | 2017-06-26 | 2018-12-27 | Qualcomm Incorporated | Ultrasonic fingerprint sensor for under-display applications |
| CN109284716A (en) * | 2018-09-21 | 2019-01-29 | 京东方科技集团股份有限公司 | A kind of substrate, display panel and display device |
| CN109509773A (en) * | 2017-09-15 | 2019-03-22 | 乐金显示有限公司 | Display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110110612A (en) * | 2019-04-18 | 2019-08-09 | 武汉华星光电技术有限公司 | Ultrasonic fingerprint identifies mould group and the display panel including it |
-
2019
- 2019-04-18 CN CN201910314346.1A patent/CN110110612A/en active Pending
- 2019-09-16 WO PCT/CN2019/105924 patent/WO2020211279A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180373913A1 (en) * | 2017-06-26 | 2018-12-27 | Qualcomm Incorporated | Ultrasonic fingerprint sensor for under-display applications |
| CN109509773A (en) * | 2017-09-15 | 2019-03-22 | 乐金显示有限公司 | Display device |
| CN108388847A (en) * | 2018-02-06 | 2018-08-10 | 武汉华星光电半导体显示技术有限公司 | A kind of display device |
| CN109284716A (en) * | 2018-09-21 | 2019-01-29 | 京东方科技集团股份有限公司 | A kind of substrate, display panel and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211279A1 (en) * | 2019-04-18 | 2020-10-22 | 武汉华星光电技术有限公司 | Ultrasonic fingerprint recognition module and display panel comprising same |
| CN111738227A (en) * | 2020-07-31 | 2020-10-02 | 深圳市汇顶科技股份有限公司 | Ultrasonic fingerprint identification device and electronic equipment |
| CN113391724A (en) * | 2021-06-04 | 2021-09-14 | 江西欧迈斯微电子有限公司 | Pressure module, touch panel and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020211279A1 (en) | 2020-10-22 |
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Application publication date: 20190809 |