CN109147593A - Display component and electronic equipment - Google Patents
Display component and electronic equipment Download PDFInfo
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- CN109147593A CN109147593A CN201811022532.XA CN201811022532A CN109147593A CN 109147593 A CN109147593 A CN 109147593A CN 201811022532 A CN201811022532 A CN 201811022532A CN 109147593 A CN109147593 A CN 109147593A
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- display component
- display panel
- voltage
- sensor devices
- memory device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Image Input (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
This application provides a kind of display component and the electronic equipment including the display component.The display component includes display panel and multiple fingerprint collecting circuits for being located in display panel；Display panel has pixel region；Each fingerprint collecting circuit includes sensor devices and memory device；Sensor devices are located in pixel region, and are electrically connected with memory device；In resetting time section, memory device receives charging signals with storage energy, so that the voltage of one end that memory device is connected with sensor devices is first voltage；Within the sensing period after resetting time section, when sensor devices receive optical signal, memory device and sensor devices are formed into a loop；In the finish time of sensing period, the voltage between memory device and sensor devices becomes second voltage, and second voltage is less than first voltage；It is sensing in the read access time section after the period, second voltage is exported.The scheme of the application improves the screen accounting of electronic equipment.
Description
Technical field
This application involves technical field of electronic products more particularly to a kind of display components and electronic equipment.
Background technique
The fingerprint mould group of electronic equipment is usually provided at the non-display area of screen, and non-display area opens up through-hole, fingerprint mould group from
Expose in through-hole for finger pressing, to identify fingerprint.Such design limitation screen accounting of electronic equipment.
Apply for content
This application provides a kind of display component and electronic equipments, are able to ascend the screen accounting of electronic equipment.
A kind of display component, including display panel and the multiple fingerprint collecting circuits being located in the display panel；It is described
Display panel has pixel region；Each fingerprint collecting circuit includes sensor devices and memory device；The sensor devices position
In in the pixel region, and it is electrically connected with the memory device；In resetting time section, the memory device receives charging signals
With storage energy, so that the voltage of one end that the memory device is connected with the sensor devices is first voltage；Described multiple
Position the period after the sensing period in, when the sensor devices receive optical signal when, the memory device with it is described photosensitive
Device forming circuit；Voltage in the finish time of the sensing period, between the memory device and the sensor devices
Become second voltage, the second voltage is less than the first voltage；In read access time section after the sensing period,
The second voltage is exported；Wherein, the resetting time section, the sensing period, the read access time section are continuous
Three periods.
A kind of electronic equipment, including processor and the display component, the processor are used for according to each fingerprint
The second voltage in Acquisition Circuit determines the finger print information of user.
In the scheme of the application, the inductive layer of fingerprinting operation can be sensed by the pixel region setting in cover plate assembly, thus
Fingerprint identification function is integrated in the viewing area of display component, viewing area is increased compared to traditional display component,
To improve the screen accounting of the electronic equipment using the display component.
Detailed description of the invention
For the construction feature and effect for more clearly illustrating the application, come with reference to the accompanying drawing with specific embodiment to its into
Row is described in detail.
Fig. 1 is the assembly structure diagram of the electronic equipment of the embodiment of the present application；
Fig. 2 is the decomposition texture schematic diagram of electronic equipment in Fig. 1；
Fig. 3 is the structural schematic diagram of the fingerprint collecting circuit in Fig. 2 in the display panel of electronic equipment；
Fig. 4 is operation principle schematic diagram of the fingerprint Acquisition Circuit in resetting time section in Fig. 3；
Fig. 5 is the schematic diagram of a scenario that user carries out fingerprint recognition；
Fig. 6 is operation principle schematic diagram of the fingerprint Acquisition Circuit within the sensing period in Fig. 3；
Fig. 7 be in Fig. 3 fingerprint Acquisition Circuit at the time of reading between operation principle schematic diagram in section；
Fig. 8 is concrete operating principle schematic diagram of the fingerprint Acquisition Circuit in resetting time section in a kind of embodiment；
Fig. 9 be in a kind of embodiment fingerprint Acquisition Circuit at the time of reading between concrete operating principle schematic diagram in section；
Figure 10 is concrete operating principle schematic diagram of the fingerprint Acquisition Circuit in resetting time section in another embodiment；
Figure 11 be in another embodiment fingerprint Acquisition Circuit at the time of reading between concrete operating principle schematic diagram in section；
Figure 12 is a kind of structural schematic diagram of sensor devices in the embodiment of the present application；
Figure 13 is a kind of structural schematic diagram of display panel of the embodiment of the present application；
Figure 14 is the structural schematic diagram of another display panel of the embodiment of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.Obviously, described embodiment is a part of the embodiment of the application, rather than whole embodiments.Based on this Shen
Please in embodiment, those of ordinary skill in the art's every other reality obtained without making creative work
Example is applied, all should belong to the range of the application protection.It should be noted that in the absence of conflict, presently filed embodiment
And the feature in embodiment can be combined with each other.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the application
Determine embodiment.The direction term being previously mentioned in the application, for example, "upper", "lower", "front", "rear", "left", "right", "inner",
"outside", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say
It is bright and understand the application, rather than indicate or imply signified device or element and must have a particular orientation, with specific side
Position construction and operation, therefore should not be understood as the limitation to the application.
The embodiment of the present application provides a kind of electronic equipment, the application electronic equipment can be it is any have communication, storage,
The equipment of display function, such as: tablet computer, mobile phone, electronic reader, remote controler, personal computer, laptop, vehicle
Carry equipment, Web TV, wearable device etc..
As shown in Figure 1, electronic equipment 10 may include display component 12 and shell 11, display component 12 is mounted on shell 11
In, the outer surface of display component 12 is exposed from the opening of shell 11 for user's viewing.Display component 12 can also receive use
(including finger the touch control operations and the pressing of fingerprint face such as clicks on the outer surface, double-clicks, dragging, rotating outside for the touch operation at family
The fingerprinting operation of fingerprint recognition is carried out on surface) after, touch operation is responded to show corresponding picture.
Referring to figs. 1 and 2, in one embodiment, display component 12 may include display panel 122 and cover board
121, cover board 121 is bonded with display panel 122, and cover board 121 is located at the outside of display panel 122, for display panel 122 into
Row protection.Touch-control sensing unit can also be set in cover board 121, so that cover board 121 has both touch function, display panel 122 is then
It is responsible for display.Alternatively, cover board 121 can only play protective action, and the then built-in integrated touch-control sensing unit of display panel 122,
So that display panel 122 has both display function and touch function.In other embodiments, cover board can be cancelled, display panel 122
It can be a kind of reinforced display panel, display surface (for showing the surface of picture, and receives the table of touch operation
Face) mechanical performance (such as hardness and strength) with higher, it is able to bear extraneous impact, friction, pressing, damage etc..This Shen
Please be in embodiment, display panel 122 can be liquid crystal display panel or self-emission panel (such as organic LED panel, plasma
Panel, electric ink panel etc.).
As shown in Fig. 2, cover board 121 has transparent area T1 (region that most inner side wire frame is enclosed in cover board 121), can also have
There are opaque area T2, opaque area T2 to be disposed around the periphery of transparent area T1.Correspondingly, display panel 122 has pixel region T3 (i.e.
For the region of display namely the viewing area of electronic equipment 10).Transparent area T1 is covered on pixel region T3, is allowed a user to
The picture that pixel region T3 is shown is seen by transparent area T1.The boundary of transparent area T1 and the boundary alignment of pixel region T3, i.e. light transmission
The shape and size of area T1 and pixel region T3 is almost the same.The area ratio of the area of transparent area T1 and cover board 121 is greater than or waits
In preset value, preset value value according to actual needs is including but not limited to 92%, 95%, 97% etc..This sets electronics
Area shared by standby viewing area also greater than or be equal to the preset value, compared to existing electronic equipment, the embodiment of the present application
The screen accounting of electronic equipment is bigger.The area accounting of transparent area T1 even can accomplish to 100%, and (opaque area T2 can be at this time
Cancel), comprehensive screen design of electronic equipment can be realized.
In the embodiment of the present application, the finger print information acquisition of user is may be implemented in display panel 122.
Specifically, as shown in figure 3, being provided with multiple fingerprint collecting circuits 123 in display panel 122.Multiple fingerprint collectings
Circuit 123 is embedded inside display panel 122, i.e., does not expose each outer surface of display panel 122.Multiple fingerprint collecting circuits
123 can according to need and line up array, and the quantity of fingerprint collecting circuit 123 is configured as needed, complete can collect
Finger print information subject to.Multiple fingerprint collecting circuits 123 can be evenly distributed in entire pixel region T3, to realize full frame arbitrary region
Fingerprint collecting；Multiple fingerprint collecting circuits 123 can also be focusing only on a certain region in pixel region T3, and such scheme is only capable of
Fingerprint collecting is carried out in the specific region of pixel region T3.One of fingerprint collecting circuit 123 is enlargedly shown in Fig. 3, is answered
Understand that this is only a kind of signal.In actual products, multiple fingerprint collecting circuits 123 can be in the structural form of film layer,
The size of each fingerprint collecting circuit 123 is very small, to construct in display panel 122 there is very highdensity fingerprint to adopt
Collect cell array, realizes that completely, accurately finger print information acquires.It is only retouched by taking a fingerprint collecting circuit 123 as an example below
State its course of work.In fact, each fingerprint collecting circuit 123 in display panel 122 is according to mode work described below
Make.
As shown in Figure 3 and Figure 4, fingerprint collecting circuit 123 may include sensor devices D and memory device C.Wherein, photosensitive
Device D is located in pixel region T3, and is electrically connected with memory device C.Sensor devices D light-permeable, to avoid influencing pixel region T3's
Display.Sensor devices D concurrently gives birth to photoelectric conversion for receiving optical signal, to generate sensing signal.Certainly, sensor devices D is not
Without photoelectric conversion when receiving optical signal, internal equivalent impedance is very big, can be considered as insulator.Memory device C can connect
Charging signals S1 and storage energy are received, so that memory device C is increased with the voltage of the one end being connected sensor devices D.Memory device C
It can also discharge in any case, reduce memory device C with the voltage of the one end being connected sensor devices D.In the present embodiment,
Memory device C may include an equivalent capacity (including but not limited to using conductive film layer as the two poles of the earth), in relevant attached drawing
Also carrying out simplification with condenser symbol C indicates.It should be understood that this is only a kind of signal.Actually memory device C can be list
A equivalent capacity is also possible to have the function of to be charged and discharged, if the complicated circuit being made of dry units.Sensor devices D can be with
With first end D1 and second end D2, first end D1 is electrically connected with the end C1 of memory device C, second end D2 and memory device C's
The end C2 can connect low potential point (including but not limited to grounding point).The work of fingerprint collecting circuit 123 can be in certain timing control
Lower progress is described in detail below with reference to concrete scene.
As shown in figure 4, memory device C receives charging signals S1 with storage energy in resetting time section.The charging signals
S1 can come from the charging circuit being integrated in display panel 122, or be located at the charging circuit except display panel 122.For
Latter situation, charging circuit still can be the composition part of display component 12, and charging circuit can be integrated in display component 12
In in other component in addition to display panel 122 (such as cover board 121)；Alternatively, charging circuit is located at the main body of display component 12
It is electrically connected except structure (construction package determined by cover board 121, display panel 122) but with the main structure of display component 12
It connects, i.e., charging circuit can be integrated in the other component in electronic equipment 10 in addition to the main structure of display component 12 (such as master
On plate).When memory device C receives charging signals S1, memory device C will gradually rise with the voltage of the one end being connected sensor devices D
Up to first voltage.The occurrence of first voltage can be set as needed, and can be consistent with the voltage of charging signals S1.?
In resetting time section, sensor devices D does not receive optical signal, therefore does not generate sensing signal.Due in sensor devices D
Portion's equivalent impedance is very big, and open circuit is equal between memory device C and sensor devices D, and memory device C can't be to sensor devices D
Electric discharge.
It as shown in Figure 5 and Figure 6, (should when the finger of user is put at a certain distance from 121 top of cover board of display component 12
Zero) distance can be greater than or equal to, the light that display panel 122 (pixel region T3) issues will project 121 (transparent area of cover board
T1 the fingerprint face of finger) is illuminated.After handling digital reflex, light fold-back cover board 121, and the sense being mapped in display panel 122 again
On optical device D.Sensor devices D receives the optical signal and generates sensing signal, and thus the timing of fingerprint collecting circuit 123 enters sensing
Period.Within the sensing period, sensing electric current, internal equivalent resistance are produced by photoelectric conversion inside sensor devices D
Reduce, so that memory device C and sensor devices D-shaped, at circuit, memory device C starts to discharge to sensor devices D (empty in such as Fig. 6
Shown in line arrow).The electric discharge is so that memory device C declines with the voltage of the one end being connected sensor devices D.In the sensing period
Finish time, voltage (namely memory device C and the one end being connected sensor devices D between memory device C and sensor devices D
Voltage) it is reduced to second voltage.The occurrence of the sensing period determines as needed, such as can be a frame.Sense the period
After resetting time section, and it is continuous with resetting time section.At the time of the light of user's finger reflection is irradiated on sensor devices D
The light of beginning namely user's finger reflection as the sensing period, which is irradiated on sensor devices D, can be used as memory device C and opens
Begin the trigger condition discharged to sensor devices D.
In the present embodiment, second voltage carries user fingerprints information.Principle is: fingerprint includes wrinkle ridge and line paddy, line
Ridge is different from the intensity for the light that line paddy is reflected (light of wrinkle ridge reflection is brighter, and the dark of line paddy reflection).It is different
After the illumination of light intensity is mapped on sensor devices D, sensing size of current caused by sensor devices D is different, and (light of larger light intensity is produced
The light of raw biggish sensing electric current, smaller light intensity generates lesser sensing electric current), cause between memory device C and sensor devices D
Voltage pressure drop have different amplitudes (pressure drop corresponding to wrinkle ridge is larger, and pressure drop corresponding to line paddy is smaller), even if also
Second voltage between memory device C and sensor devices D is different, and (second voltage corresponding to wrinkle ridge is smaller, and corresponding to line paddy
Second voltage it is larger.Therefore in single fingerprint collecting circuit 123, different second voltages can characterize certain of finger print face
A region is wrinkle ridge or line paddy；Different second voltages in multiple fingerprint collecting circuits 123 can characterize entire finger print face
Wrinkle ridge or line paddy.Second voltage is generated as a result, indicates that fingerprint collecting circuit 123 completes the acquisition of finger print information.
As shown in fig. 7, second voltage can be exported in read access time section after the sensing period.When reading
Between section and sensing period be the continuous period, occurrence can be set as needed.Second voltage, which can be, to be read
The initial time of period is just exported, be also possible to a certain moment after the initial time (still at the time of reading between section
It is interior) it is exported.Each fingerprint collecting circuit 123 (refers in certain area that finger print face is covered, induction fingerprint face is anti-
Those of light penetrated fingerprint collecting circuit 123) in second voltage can be read and be handled by the processor of electronic equipment 10
(including each fingerprint collecting circuit 123 finger print information collected being spliced, to obtain complete finger print information).By
After the processing of processor, that is, it may recognize that the finger print information of user.
In the scheme of the present embodiment, multiple fingerprint collecting circuits are provided in the display panel 122 of display component 12
123, the sensor devices D of each fingerprint collecting circuit 123 is located in pixel region T3, and pass through resetting time section, sensing time
Three section, read access time section work of timing control fingerprint collecting circuit 123 are under different conditions.When pixel region T3 is because showing picture
And when shining, this shines and is irradiated to user's finger fingerprint face and is reflected back, and reflected light is injected photosensitive in display panel 122
Device D, sensor devices D carry out photoelectric conversion and generate sensing electric current, lead to the voltage drop between memory device C and sensor devices D
For carry user finger print information second voltage.After the second voltage is exported and handled, that is, it may recognize that user
Finger print information.Due to that can realize fingerprint identification function in the viewing area (i.e. pixel region T3) of electronic equipment 10, thus avoid
Conventional fingerprint mould group, which is located at non-display area, to be caused to shield the not high defect of accounting, and the viewing area of electronic equipment 10 is compared
In the expansion of conventional electronic devices, to keep the screen accounting of the electronic equipment 10 using this display component 12 larger, it might even be possible to
Realize screen comprehensively.Further, since cover board 121 is not necessarily to aperture, so that the structural strength of cover board 121 is higher, appearance is also more aesthetically pleasing.
In the first embodiment of the present embodiment, the resetting time section built-in storage part C received charging signals S1 of institute can
From display component 12.It specifically combines shown in Fig. 3 and Fig. 8, display component 12 can also include charging circuit, and charging circuit is used
In interior to memory device C transmission charging signals S1 in resetting time section.The charging circuit can be integrated in (can in display panel 122
Think the sub-circuit of fingerprint collecting circuit 123, perhaps there is the circuit of signal interaction with fingerprint collecting circuit 123) or be integrated in
In other component in display component 12 in addition to display panel 122 (such as cover board 121)；Alternatively, charging circuit can be located at display
Except the main structure (construction package determined by cover board 121, display panel 122) of component 12 but the master with display component 12
Body structure is electrically connected (still believing that charging circuit belongs to the composition part of display component 12 at this time), i.e., charging circuit can be integrated in
In other component in electronic equipment 10 in addition to the main structure of display component 12 (such as on circuit board).By in display component
Integrated charging circuit in 12 can make display component 12 itself just be capable of providing charging signals S1, independent of other external electricals
Road improves the compatibility of display component 12.Especially when charging circuit is located in display panel and is fingerprint collecting circuit 123
When sub-circuit, fingerprint collecting circuit 123 can be located at any one layer of display panel, not with the driving circuit of display panel itself
It contacts, is limited without by the driving circuit.
In the present first embodiment, further, at the time of reading between in section the second voltage can be incorporated in display group
Reading circuit in part is read.It specifically combines shown in Fig. 3 and Fig. 9, display component 12 can also include reading circuit, reading circuit
For reading second voltage between memory device C and sensor devices D in section between at the time of reading.The reading circuit can be integrated in aobvious
Showing in panel 122 (can be the sub-circuit of fingerprint collecting circuit 123, or have the electricity of signal interaction with fingerprint collecting circuit 123
Road), or (such as cover board 121) is integrated in the other component in display component 12 in addition to display panel 122；Alternatively, reading
Circuit can be located at display component 12 main structure (construction package determined by cover board 121, display panel 122) except but with
The main structure of display component 12 is electrically connected (still believing that reading circuit belongs to the composition part of display component 12 at this time), that is, reads
Sense circuit can be integrated in the other component in electronic equipment 10 in addition to the main structure of display component 12 (on such as circuit board).
The second voltage that reading circuit is read can be through the processing of processor, to carry out the identification of the finger print information of user.By aobvious
Show and integrate reading circuit in component 12, can make display component 12 itself that can input the second voltage to processor, disobey
Rely and improves the compatibility of display component 12 in other external circuits.Especially when reading circuit is located in display panel and is finger
When the sub-circuit of line Acquisition Circuit 123, fingerprint collecting circuit 123 can be located at any one layer of display panel, not with display surface
The driving circuit of plate itself contacts, and is limited without by the driving circuit.
In this first embodiment, the second voltage amplitude at the end C1 of memory device C is smaller, and needing to be amplified just can be into
Row subsequent processing.Therefore as shown in figure 9, further, fingerprint collecting circuit 123 can also include amplifier, amplifier connection
At the end C1 that memory device C is connected with sensor devices D, for second voltage to be amplified.When display component includes reading circuit,
The amplifier should be located between reading circuit and the end C1 of memory device C, and reading circuit is made to read second after amplifying
Voltage.Certainly, which is not necessary.
In the second embodiment of the present embodiment, unlike above-mentioned first embodiment, in resetting time section
Memory device C received charging signals S1 may be from the charging circuit that display component 12 is not belonging in electronic equipment 10, i.e.,
The charging circuit is external charging circuit.Specific as shown in Figure 10, fingerprint collecting circuit may include first switch K1 and charging end
Mouth P1.Wherein, first switch K1 is connected between charging port P1 and memory device C, which can be to the charging
Port P1 loads charging signals S1, and charging signals S1 is input to memory device C by charging port P1.In resetting time section
First switch K1 closure, so that memory device C receives charging signals S1 from charging port P1；When sensing in the period and reading
Between in section first switch K1 disconnect so that memory device C stops receiving charging signals S1 from charging port P1.This first
Switch K1 include but is not limited to be thin film transistor switch.By the way that first switch K1 and charging are only arranged in display panel 122
Port P1 charges to memory device C using external charging circuit, can simplify the circuit design of display panel 122.
In this second embodiment, the reading manner of second voltage is also different from above-mentioned first embodiment.This second
In embodiment, at the time of reading between in section the second voltage reading electricity of display panel 122 can be not belonging in electronic equipment 10
Road is read, i.e., the second voltage can be exported by external reading circuit.Specific as shown in figure 11, fingerprint collecting circuit may include
Second switch K2 and read port P2, second switch K2 are connected between read port P2 and memory device C, which reads electricity
Road is connected to read port P2 again.Second switch K2 is closed in section between at the time of reading, is made the end C1 of memory device C and is read end
Mouth P2 forms access, and reading circuit can pass through read port P2 reading second voltage at this time；In resetting time section and sense
Second switch K2 is disconnected in period, and the reading circuit can not then read second electricity by read port P2 at this time
Pressure.By the way that first switch K1 and charging port P1 is only arranged in display panel 122, the second electricity is read using external reading circuit
Pressure, can simplify the circuit design of display panel 122.
Further, as shown in figure 11, when amplifier is arranged, which be can connect at the end C1 of memory device C
Between second switch K2, also it can connect between second switch K2 and read port P2.
As shown in figure 12, in above embodiments, sensor devices D can specifically include the first inductive layer stacked gradually
1241, dielectric layer 1242 and the second inductive layer 1243.Wherein, the first inductive layer 1241 is made of translucent material, the first induction
Layer 1241 can pass through shining for the display panel 122 reflected through finger print face.First inductive layer 1241 includes but is not limited to be
Oxide semiconductor thin-film (for example, indium tin oxide semiconductive thin film).Dielectric layer 1242 is photosensitive material layer, in light
It can produce electronics and two kinds of hole carrier under excitation.Dielectric layer 1242 includes but is not limited to the photosensitive dielectrics by being rich in silicon
Material is made.Second inductive layer 1243 includes but is not limited to be made of metal material, and the second inductive layer 1243 is opaque.In order to connect
Receive the light reflected through finger print face, display surface of first inductive layer 1241 towards display panel 122, the second inductive layer 1243
Then backwards to the display surface of display panel 122.
Specifically, the light reflected through finger print face injects the first inductive layer 1241, so that electric within the sensing period
Carrier in dielectric layer 1242 is excited, so as to generate sensing electricity between the first inductive layer 1241 and the second inductive layer 1243
Stream.When sensor devices D generates sensing electric current, memory device C and sensor devices D-shaped are at circuit, and memory device C is to sensor devices
D electric discharge, declines the end the C1 voltage of memory device C.In the finish time of sensing period, the voltage at the end C1 of memory device C
It is reduced to second voltage.Then in carving at the time of reading, which can be read out, to realize the acquisition and knowledge of finger print information
Not.In other embodiments, the construction of sensor devices D and material can be not limited to above.
In the present embodiment, it is preferred that the first inductive layer 1241 can be used as cathode, to absorb the hole in carrier；This
Two inductive layers 1243 can be used as anode, to absorb the electronics in carrier, thus make the first inductive layer 1241 and the second inductive layer
Sensing electric current is generated between 1243.Certainly, the first inductive layer 1241 can be used as anode, for absorbing the electronics in carrier；The
Two inductive layers 1243 can be used as cathode, for absorbing the hole in carrier.
As shown in figure 13, in above embodiments, display panel 122 can be liquid crystal display panel.Liquid crystal display panel includes the first base
Plate, the second substrate, and the liquid crystal layer being filled between first substrate and the second substrate.The first substrate can be color membrane substrates
1221, i.e. first substrate may include the multiple colours of first base material 12211 and array arrangement in first base material 12211
Filter unit 12212.The second substrate can be array substrate 1223, i.e. the second substrate may include the second substrate 12232, with
And multiple thin film transistor (TFT) pixels 12231 of the array arrangement on the second substrate 12232.Wherein, thin film transistor (TFT) pixel 12231
It may include thin film transistor (TFT), pixel electrode and other peripheral driver parts, thin film transistor (TFT) pixel 12231 and colorized optical filtering
Unit 12212 collectively forms a pixel.Certainly, first substrate is also possible to array substrate 1223, i.e., first substrate includes the
One substrate 12232, array is placed with multiple thin film transistor (TFT) pixels 12231 in first base material 12232；The second substrate is then color film
Substrate 1221, i.e. the second substrate include the second substrate 12211, and array is placed with multiple colorized optical filtering lists on the second substrate 12211
Member 12212.
As shown in figure 13, when first substrate is color membrane substrates 1221, fingerprint collecting circuit 123 can be located at color membrane substrates
It (indicates that sensor devices D receives the light of finger print face reflection on 1221 for emphasis, illustrates only fingerprint collecting circuit in Figure 13
Sensor devices D in 123, actually entire fingerprint collecting circuit 123 are all located on color membrane substrates 1221), i.e., fingerprint collecting is electric
Road 123 and colored light-filtering units 12212 are collectively formed in first base material 12211.It certainly, is array substrate in first substrate
When 1223, fingerprint collecting circuit 123 can be located at array substrate 1223, i.e. fingerprint collecting circuit 123 can be with thin film transistor (TFT) picture
Element 12231 is collectively formed in first base material 12232.By the way that fingerprint collecting circuit 123 is integrated in array substrate 1223 or coloured silk
In ilm substrate 1221, it can be realized fingerprint recognition in screen (carrying out fingerprint collecting and identification in display panel), promote electronics and set
Standby 10 screen accounting.
As shown in figure 14, further, which can be special COA liquid crystal display panel (Color Filter On
Array, colored light-filtering units are made in array substrate), which has been avoided that array substrate and color membrane substrates need essence
The inconvenience of quasi- contraposition, can increase the aperture opening ratio of liquid crystal display panel, promote display quality.In the COA liquid crystal display panel, the second substrate can be with
Including the second substrate 12232,12231 array of thin film transistor (TFT) pixel and colored light-filtering units are formed on the second substrate 12232
12212 arrays.First substrate includes first base material 12211, and colored light-filtering units array is no longer arranged in first base material 12211.
Fingerprint recognition circuit 123, which is set, (ibid, illustrates only the sensor devices in fingerprint collecting circuit 123 on the first substrate in Figure 14
D), i.e., fingerprint recognition circuit 123 is formed in first base material 12211.Certainly, first substrate may include first base material 12232,
12231 array of thin film transistor (TFT) pixel and 12212 array of colored light-filtering units are formed in first base material 12232.The second substrate
Including the second substrate 12211, colored light-filtering units array is no longer set on the second substrate 12211.Fingerprint recognition circuit 123 is located at
On first substrate, i.e. fingerprint recognition circuit 123,12231 array of thin film transistor (TFT) pixel and, 12212 array of colored light-filtering units
It is both formed in first base material 12232.By the way that fingerprint collecting circuit 123 to be integrated in COA liquid crystal display panel, can not only be promoted
The screen accounting of electronic equipment 10, additionally it is possible to promote display quality.
Alternatively, display panel 122 can also be self-emission panel, such as Organic Light Emitting Diode in the embodiment of the present application
Panel, plasma panel, electric ink panel etc..The suitable position in self-emission panel can be set in fingerprint recognition circuit 123
It sets.Realize that the principle of fingerprint recognition is same as above by fingerprint recognition circuit 123, details are not described herein again.
Fingerprint collecting process described above can be (i.e. continuously display in being always under state in display panel 122
When picture) it carries out.It, can be by pixel region when display panel 122 is in screen state of putting out (not showing picture, be in black state)
T3's at least partly lights, then carries out fingerprint collecting and identification.
Specifically, pixel region T3 may include setting regions, which is fingerprint collecting area.In user's finger
(sensor devices D can accurately incude with distance of reaction is equal to or less than at a distance from the display panel 122 for putting out screen state in fingerprint face
The maximum distance of reflection light) when, processor control setting regions shines to illuminate the fingerprint face of the finger of user.The setting area
The light that domain issues is reflected by the fingerprint face of finger, and reflected light is irradiated on sensor devices D, to realize the acquisition of finger print information
And identification.Setting regions can be partial pixel area T3, and only need lights partial pixel area T3 at this time can be realized fingerprint letter
The acquisition and identification of breath shine without entire pixel region T3, it is possible thereby to save the power consumption of electronic equipment 10；Alternatively, setting area
Domain is also possible to whole pixel region T3, and entire pixel region T3 is needed all to light the acquisition and knowledge that can just carry out finger print information at this time
Not.Display panel 122 can be waken up when putting out screen as a result, pixel region T3 is at least partly lighted into realization fingerprint recognition, thus
The function of having expanded electronic equipment 10 enhances the user experience of electronic equipment 10.
Alternatively, in another embodiment, from it is above-mentioned using the shining of display panel 122 itself unlike, it is logical
It crosses and invisible light source is additionally set in display component 12, utilize the fingerprint for the black light irradiation finger that invisible light source issues
The fingerprint collecting put out under screen scene is realized in face, but does not have to light at least partly pixel region T3.The invisible light source is display component
Built-in light source in 12, the black light issued can penetrate the display surface (and cover board 121) of display panel 12, the black light
It is including but not limited to infrared light.
Specifically, finger fingerprint face in put out screen state display panel 122 at a distance from reach distance of reaction when
(when being equal to or less than distance of reaction), processor controls invisible light source and emits black light, and black light can irradiate in one's hands
It is reflected on the fingerprint face of finger and by the fingerprint face of finger.Reflected light is irradiated on sensor devices D, to realize adopting for finger print information
Collection and identification.Since the power consumption (power consumption of invisible light source of display panel 122 can be saved without lighting pixel region T3
Much smaller than the power consumption of display panel 122).And the black light reflected by the fingerprint face of finger will not be to the display of pixel region T3
It interferes.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily expect various equivalent modifications or
Replacement, these modifications or substitutions should all cover within the scope of protection of this application.Therefore, the protection scope Ying Yiquan of the application
Subject to the protection scope that benefit requires.
Claims (20)
1. a kind of display component, which is characterized in that
Including display panel and the multiple fingerprint collecting circuits being located in the display panel；The display panel has pixel
Area；Each fingerprint collecting circuit includes sensor devices and memory device；The sensor devices are located in the pixel region, and
It is electrically connected with the memory device；In resetting time section, the memory device receives charging signals with storage energy, so that institute
The voltage for stating one end that memory device is connected with the sensor devices is first voltage；Sensing after the resetting time section
In period, when the sensor devices receive optical signal, the memory device and the sensor devices are formed into a loop；Described
The finish time of period is sensed, the voltage between the memory device and the sensor devices becomes second voltage, and described the
Two voltages are less than the first voltage；In read access time section after the sensing period, the second voltage is exported；
Wherein, the resetting time section, the sensing period, the read access time section are continuous three periods.
2. display component according to claim 1, which is characterized in that
The fingerprint collecting circuit includes first switch and charging port, and the first switch is connected to the charging port and institute
It states between memory device, the charging port is for loading the charging signals；The first switch is in the resetting time section
Interior closure, so that the memory device receives the charging signals from the charging port；The first switch is in the sensing
It is disconnected in period and in the read access time section.
3. display component according to claim 1, which is characterized in that
The display component further includes charging circuit, and the charging circuit is used in the resetting time section to the memory
Part sends the charging signals.
4. display component according to claim 3, which is characterized in that
The charging circuit is integrated in the display panel, or is located at outside the display panel.
5. display component according to claim 1, which is characterized in that
The fingerprint collecting circuit includes second switch and read port, and the second switch is connected to the read port and institute
It states between memory device, the second switch is closed in the read access time section, so that read port output described the
Two voltages；The second switch disconnects in the resetting time section and in the sensing period.
6. display component according to claim 1, which is characterized in that
The display component further includes reading circuit, and the reading circuit is used in the read access time section from the memory
The second voltage is read between part and the sensor devices.
7. display component according to claim 6, which is characterized in that
The reading circuit is integrated in the display panel, or is located at outside the display panel.
8. display component according to claim 1, which is characterized in that
The fingerprint collecting circuit includes amplifier, and the amplifier is connected to the memory device and is connected with the sensor devices
One end, the amplifier is for amplifying the second voltage.
9. display component according to claim 1-7, which is characterized in that
The sensor devices include the first inductive layer, dielectric layer and the second inductive layer stacked gradually, and the first inductive layer can be saturating
Light；Within the sensing period, light injects first inductive layer and the carrier in the dielectric layer is excited,
So as to generate sensing electric current between first inductive layer and second inductive layer；When the sensor devices generate the sensing
When electric current, the memory device and the sensor devices are formed into a loop；In the finish time of the sensing period, the storage
Voltage between device and the sensor devices becomes the second voltage.
10. the display component stated according to claim 9, which is characterized in that
First inductive layer is used to absorb the hole in the carrier, and second induction is for absorbing in the carrier
Electronics, so as to generate the sensing electric current between first inductive layer and second inductive layer.
11. display component according to claim 1-7, which is characterized in that
The display panel is liquid crystal display panel, and the liquid crystal display panel includes first substrate, the second substrate, and is filled in described first
Liquid crystal layer between substrate and the second substrate；Each fingerprint collecting circuit is all provided on the first substrate.
12. display component according to claim 11, which is characterized in that
The first substrate is array substrate, and the second substrate is color membrane substrates；Alternatively, the second substrate is array base
Plate, the first substrate are color membrane substrates.
13. display component according to claim 11, which is characterized in that
The first substrate includes first base material, and the pixel array being formed in the first base material and colored filter battle array
Column.
14. display component according to claim 11, which is characterized in that
The second substrate includes the second substrate, and the pixel array and colored filter battle array that are formed on second substrate
Column.
15. display component according to claim 1-7, which is characterized in that
The display panel is organic LED panel.
16. display component according to claim 1-7, which is characterized in that
The display component further includes cover board, and the cover board fits with the display panel.
17. display component according to claim 16, which is characterized in that
The cover board has the transparent area for covering the pixel region, the boundary pair on the boundary of the transparent area and the pixel region
Together, and the area ratio of the area of the transparent area and the cover board is greater than or equal to preset value.
18. a kind of electronic equipment, which is characterized in that
Including processor and the described in any item display components of claim 1-17, the processor is used for according to each finger
The second voltage in line Acquisition Circuit determines the finger print information of user.
19. electronic equipment according to claim 18, which is characterized in that
The pixel region includes setting regions；In the fingerprint face of the finger of user and in the display panel for putting out screen state
When distance reaches distance of reaction, the processor controls the setting regions and shines to illuminate the fingerprint face of the finger of user.
20. electronic equipment according to claim 18, which is characterized in that
The pixel region includes setting regions, and the display component includes invisible light source；User finger fingerprint face with
When distance in the display panel for putting out screen state reaches distance of reaction, the processor controls the invisible light source hair
Invisible ray out, the invisible ray is from the fingerprint face for the finger that user is projected and be irradiated in the setting regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022532.XA CN109147593A (en) | 2018-08-31 | 2018-08-31 | Display component and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022532.XA CN109147593A (en) | 2018-08-31 | 2018-08-31 | Display component and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109147593A true CN109147593A (en) | 2019-01-04 |
Family
ID=64826405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811022532.XA Pending CN109147593A (en) | 2018-08-31 | 2018-08-31 | Display component and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109147593A (en) |
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Application publication date: 20190104 |