CN109376569A - Display screen, electronic equipment and fingerprint identification method - Google Patents
Display screen, electronic equipment and fingerprint identification method Download PDFInfo
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- CN109376569A CN109376569A CN201710650785.0A CN201710650785A CN109376569A CN 109376569 A CN109376569 A CN 109376569A CN 201710650785 A CN201710650785 A CN 201710650785A CN 109376569 A CN109376569 A CN 109376569A
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- photosensitive sensor
- electric signal
- signal
- finger
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- 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
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
-
- 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
-
- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
Abstract
The application provides a kind of display screen, electronic equipment and fingerprint identification method, it include: photosensitive sensor, control Integrated circuit IC, active matrix organic light-emitting second level body display AMOLED panel, polaroid and cover-plate glass, polaroid is arranged between AMOLED panel and cover-plate glass, and control IC is connect with photosensitive sensor；Wherein, photosensitive sensor is laid on the surface of AMOLED panel, and is arranged between AMOLED panel and polaroid；Photosensitive sensor is used to that the optical signal that user's finger reflects to be converted to electric signal when user's finger touches cover-plate glass；Photosensitive sensor is also used to for electric signal being sent to control IC；Control IC carries out fingerprint recognition according to fingerprint signal and improves the screen accounting of electronic equipment while realizing fingerprint recognition for converting the electrical signal to fingerprint signal.
Description
Technical field
This application involves technical field of electronic equipment more particularly to a kind of display screens, electronic equipment and fingerprint identification method.
Background technique
With the continuous development of science and technology, unlock and secure payment etc. for convenience, fingerprint identification technology is as electronic equipment
The important function of one kind, have become vital a part in people's life.
By taking electronic equipment is mobile phone as an example, current most of mobile phones be all by the mode that fingerprint mould group is preposition, and
By the assembly of fingerprint mould group in the chin area of mobile phone, the fingerprint signal of user is acquired by the fingerprint mould group in chin area, to complete to refer to
Line identification.
However, the accounting of display screen is affected since chin area can occupy certain area, so that the screen of mobile phone accounts for
It is higher than not.
Summary of the invention
The application provides a kind of display screen, electronic equipment and fingerprint identification method, while realizing fingerprint recognition, improves
The screen accounting of electronic equipment.
In a first aspect, the application provides a kind of display screen, it is applied to electronic equipment, display screen may include:
Photosensitive sensor, control Integrated circuit IC, active matrix organic light-emitting second level body show AMOLED panel, polaroid
And cover-plate glass, polaroid are arranged between AMOLED panel and cover-plate glass, control IC is connect with photosensitive sensor；
Wherein, photosensitive sensor is laid on the surface of AMOLED panel, and is arranged between AMOLED panel and polaroid；
Photosensitive sensor is used to that the optical signal that user's finger reflects to be converted to electricity when user's finger touches cover-plate glass
Signal；
Photosensitive sensor is also used to for electric signal being sent to control IC；
Control IC carries out fingerprint recognition for converting the electrical signal to fingerprint signal, and according to fingerprint signal.
Display screen provided by the present application, by the way that photosensitive sensor to be laid on to the surface of AMOLED panel, so that judging
During whether having finger touch and carrying out fingerprint recognition, the photosensitive sensing directly by being laid on the surface of AMOLED panel
The optical signal that user's finger reflects is converted into electric signal by device, and the electric signal being converted to is sent to control IC, so that control
IC processed can determine whether that finger touches and carry out fingerprint recognition according to the electric signal, to realize in the same of fingerprint recognition
When, improve the screen accounting of electronic equipment.
In one possible implementation, photosensitive sensor is equably laid on the surface of AMOLED panel.
In one possible implementation, the distance between two photosensitive sensors be more than or equal to 0.02 millimeter, and
Any value in less than or equal to 0.2 millimeter.
In one possible implementation, AMOLED panel is including laterally M pixel, and AMOLED panel is in longitudinal packet
N number of pixel is included, every K adjacent pixel is correspondingly arranged a photosensitive sensor in AMOLED panel；Wherein, M be more than or equal to
720 integer, N are the integer more than or equal to 1080, and K is the integer more than or equal to 1, and less than or equal to 10.
It in one possible implementation, further include infrared optical sensor, wherein
The surface of AMOLED panel is arranged in infrared optical sensor so that go out shield state when, without starting the face AMOLED
The included built-in light source of plate can carry out light filling by the infrared optical sensor, to acquire the optical signal of user's finger reflection, and
The first electric signal is converted optical signals into, so that control IC202 can determine finger Petting Area according to first electric signal
Domain.
Second aspect, the application provide a kind of electronic equipment, may include:
Display screen shown in memory, processor and any possible implementation of above-mentioned first aspect.
The third aspect, the application provide a kind of fingerprint identification method, are applied to electronic equipment, the display screen packet of electronic equipment
Include: photosensitive sensor, control Integrated circuit IC and active matrix organic light-emitting second level body show AMOLED panel to cover-plate glass
AMOLED panel, polaroid and the cover-plate glass set gradually；Control IC is connect with photosensitive sensor；Wherein, photosensitive sensor
It is laid on the surface of AMOLED panel, and is arranged between AMOLED panel and polaroid；Fingerprint identification method may include:
When user's finger touches cover-plate glass, control IC receives the first electric signal, and the first electric signal is photosensitive sensor
It is converted to according to the optical signal that user's finger reflects；
IC is controlled according to the first electric signal, determines finger touch area；
When controlling IC and receiving fingerprint recognition instruction, the second electric signal is converted into fingerprint signal by control IC, and according to
Fingerprint signal carries out fingerprint recognition, and the second electric signal is what the photosensitive sensor in finger touch area was reflected according to user's finger
What optical signal was converted to.
Fingerprint identification method provided by the present application, when user's finger touches cover-plate glass, control IC is photosensitive by receiving
The first electric signal that sensor is converted to according to the optical signal that user's finger reflects, and according to the first electric signal, determine finger
Touch area；Later, when receiving fingerprint recognition instruction, the photosensitive sensor in finger touch area is converted to the
Two electric signals are converted into fingerprint signal, and carry out fingerprint recognition according to fingerprint signal, to realize while fingerprint recognition, mention
The screen accounting of high electronic equipment.
In one possible implementation, control IC determines finger touch area, can wrap according to the first electric signal
It includes:
IC is controlled according to the first electric signal, determines primary touch area；Control the central point that IC determines primary touch area；
It controls IC and finger touch area is determined according to central point and preset fingerprint size.By determining finger touch area, know in fingerprint
During not, due to there was only the optical signal of the photosensitive sensor acquisition user's finger reflection in finger touch area, and other are non-
Photosensitive sensor in finger touch area is not necessarily to acquire the optical signal of user's finger reflection, to reduce data collection capacity.
In one possible implementation, control IC determines primary touch area, can wrap according to the first electric signal
It includes:
Control the signal value that IC detects the first electric signal；
If the signal value of the first electric signal is greater than or equal to baseline signal value, controls IC and determine that the first electric signal is corresponding
Region where photosensitive sensor is primary touch area.
In one possible implementation, control IC determines finger touch area, can wrap according to the first electric signal
It includes:
Control the signal value that IC detects the first electric signal；Control IC determines the maximum photosensitive biography of the signal value of the first electric signal
Position where sensor is the central point of primary touch area；Control IC determines that finger touches according to central point and preset fingerprint size
Touch region.By determining finger touch area, in fingerprint identification process, due to there was only the photosensitive sensing in finger touch area
Device acquires the optical signal of user's finger reflection, and the photosensitive sensor in other non-finger touch areas is without acquiring user's finger
The optical signal of reflection, to reduce data collection capacity.
Display screen, electronic equipment and fingerprint identification method provided by the present application, the display screen include: photosensitive sensor, control
Integrated circuit IC, active matrix organic light-emitting second level body display AMOLED panel, polaroid and cover-plate glass processed, polaroid setting
Between AMOLED panel and cover-plate glass, control IC is connect with photosensitive sensor；Wherein, photosensitive sensor is laid on AMOLED
The surface of panel, and be arranged between AMOLED panel and polaroid；Photosensitive sensor is used to touch cover board glass in user's finger
When glass, the optical signal that user's finger reflects is converted into electric signal；Photosensitive sensor is also used to for electric signal being sent to control IC；
Control IC carries out fingerprint recognition for converting the electrical signal to fingerprint signal, and according to fingerprint signal.It can be seen that the application mentions
The display screen of confession, by the way that photosensitive sensor to be laid on to the surface of AMOLED panel so that judge whether there is finger touch and
During carrying out fingerprint recognition, directly user's finger is reflected by being laid on the photosensitive sensor on the surface of AMOLED panel
Optical signal be converted into electric signal, and the electric signal being converted to is sent to control IC, allows control IC according to the electricity
Signal determines whether that finger touches and carries out fingerprint recognition and improves electronic equipment to realize while fingerprint recognition
Shield accounting.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for display screen that the prior art provides；
Fig. 2 is a kind of structural schematic diagram of display screen provided by the embodiments of the present application；
Fig. 3 is a kind of paving mode schematic diagram of photosensitive sensor provided by the embodiments of the present application；
Fig. 4 is the paving mode schematic diagram of another photosensitive sensor provided by the embodiments of the present application；
Fig. 5 is a kind of distribution schematic diagram of first kind photosensitive sensor provided by the embodiments of the present application；
Fig. 6 is the distribution schematic diagram of another first kind photosensitive sensor provided by the embodiments of the present application；
Fig. 7 is a kind of schematic diagram that finger touch area is determined according to the first electric signal provided by the embodiments of the present application；
Fig. 8 is the schematic diagram that another kind provided by the embodiments of the present application determines finger touch area according to the first electric signal；
Fig. 9 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application；
Figure 10 is a kind of flow diagram of fingerprint identification method provided by the embodiments of the present application.
Specific embodiment
It, can be by by the preposition chin area in mobile phone of fingerprint mould group, under in order to facilitate unlock and secure payment etc.
The fingerprint signal of the fingerprint mould group acquisition user of Ba Qu, to complete fingerprint recognition.But by this way, display screen is affected
Accounting, so that the screen accounting of mobile phone is not high.Shown in Figure 1, Fig. 1 is that a kind of structure for display screen that the prior art provides is shown
It is intended to, existing mobile phone display screen includes that the active matrix organic light-emitting second level body set gradually from inside to outside shows (Active
Matrix Organic Light Emitting display, abbreviation AMOLED) panel, capacitive touch panel, polaroid and lid
Glass sheet；It is that the electricity that finger generates on cover-plate glass is acquired by capacitive touch panel when judging whether there is finger touch
Hold signal, and form magnetic field signal, determines whether that finger touches further according to magnetic field signal.And display screen packet provided by the present application
Include photosensitive sensor, control integrated circuit (ntegrated circuit, abbreviation IC), AMOLED panel, polaroid and cover board glass
Glass, polaroid are arranged between AMOLED panel and cover-plate glass, and photosensitive sensor is laid on the surface of AMOLED screen, and sets
It sets between AMOLED screen and polaroid.It can be seen that not having in the display screen in the application compared with existing display screen
Capacitive touch panel is set, but photosensitive sensor is directly laid on AMOLED panel surface, is judging whether there is finger touching
It is the light letter that finger reflection when user's finger touches cover-plate glass is acquired by photosensitive sensor when touching and carrying out fingerprint recognition
Number, and electric signal is converted optical signals into, so that control IC can determine whether that finger is touched according to the electric signal, and
When receiving fingerprint recognition instruction, finger print information can be converted the electrical signal to, to realize while fingerprint recognition, is improved
The screen accounting of electronic equipment.
In the following, being described in detail with technical solution of the specific embodiment to the application.It should be noted that below this
Several specific embodiments can be combined with each other, may be no longer superfluous in some embodiments for the same or similar concept or process
It states.
Fig. 2 is a kind of structural schematic diagram of display screen 20 provided by the embodiments of the present application, is applied to electronic equipment, the electronics
Equipment can be mobile phone, or tablet computer.Shown in Figure 2, which may include:
Photosensitive sensor 201, control Integrated circuit IC 202, AMOLED panel 203, polaroid 204 and cover-plate glass 205,
Polaroid 204 is arranged between AMOLED panel 203 and cover-plate glass 205, and control IC202 is connect with photosensitive sensor 201.
Wherein, photosensitive sensor 201 is laid on the surface of AMOLED panel 203, and setting is in AMOLED panel 203 and partially
Between mating plate 204.
Photosensitive sensor 201 is used to turn the optical signal of user's finger reflection when user's finger touches cover-plate glass 205
It is changed to electric signal；Photosensitive sensor 201 is also used to for electric signal being sent to control IC202.
Control IC202 carries out fingerprint recognition for converting the electrical signal to fingerprint signal, and according to fingerprint signal.
Display screen provided by the present application, by the way that photosensitive sensor to be laid on to the surface of AMOLED panel, so that judging
During whether having finger touch and carrying out fingerprint recognition, the photosensitive sensing directly by being laid on the surface of AMOLED panel
The optical signal that user's finger reflects is converted into electric signal by device, and the electric signal being converted to is sent to control IC, so that control
IC processed can determine whether that finger touches and carry out fingerprint recognition according to the electric signal, to realize in the same of fingerprint recognition
When, improve the screen accounting of electronic equipment.
In the above-described embodiments, AMOLED panel 203 includes thin film transistor (TFT) (Thin Film Transistor, abbreviation
TFT) and organic luminous layer, it is provided with red, yellow and blue three sub-pixel on organic luminous layer, these three sub-pixels are in a particular form
Combination issues the light of different colours；TFT can accurately control each pixel and form cromogram by way of matrix arrangement
Picture.Wherein, each pixel includes at least red (Red, abbreviation R), green (Green, abbreviation G), blue (Blue, abbreviation B) three sons
Pixel.Common pixel format is Bayer format, and the pixel of the Bayer format is made of tetra- sub-pixels of RGBG.
It is exemplary, in the embodiment of the present application, when photosensitive sensor 201 is photo resistance or photoconductive tube, working principle
Be: under the light irradiation of specific wavelength, the carrier that illumination generates is involved in conduction, when user's finger touches cover-plate glass 205
When, the light of finger reflection is to photo resistance or photoconductive tube, when in forbidden bandwidth of the photon energy greater than semiconductor material, valence band
One photon of Electron absorption energy after can transit to conduction band, and in valence band generate a positively charged hole, electronics
March on towards the anode of power supply, hole marches on towards the cathode of power supply, this electronics generated by illumination and hole to increasing semiconductor material
The number of carrier in material, so that the resistance value of photo resistance or photoconductive tube is reduced rapidly, to convert optical signals to electric signal.
When photosensitive sensor 201 is photodiode or phototriode, working principle is similar with photo resistance, here, this Shen
Please embodiment no longer repeated.
During judging whether there is finger touch and carrying out fingerprint recognition, when user's finger touches cover-plate glass 205
When, photosensitive sensor 201 can use the refraction and principle of reflection of light, and finger is penetrated under the irradiation of 20 built-in light source of display screen
Light out returns in screen through finger surface reflection, and reflected light penetrates on polaroid 204 to photosensitive sensor 201, photosensitive sensing
The optical signal of its own can be converted into electric signal by device 201, and each inverting obtained electric signal is sent to control
The coordinate information of finger touch can be calculated in IC202, control IC202 according to the electric signal, may thereby determine that finger touches
Touch region；After determining finger touch area, control IC202 can be by 201 turns of photosensitive sensor in finger touch area
Be changed to finger print information, in conversion process, since the crestal line of fingerprint is contacted with 205 surface of cover-plate glass, valley line not with cover board glass
The contact of 205 surface of glass, therefore, the intensity of the corresponding electric signal generated are different, thus the electric signal that photosensitive sensor 201 is sent
Fingerprint signal is converted to, since 201 density of photosensitive sensor is sufficiently large, each fingerprint signal can be synthesized one by control IC202
Width fingerprint image, to carry out fingerprint recognition.It should be noted that the control IC202 in the application, can also control display screen
20 are shown, such as show a picture, or display a piece of news etc..
So, during judging whether there is finger touch and carrying out fingerprint recognition, photosensitive sensor 201 is with what
Does is mode laid in AMOLED panel 203? optionally, in the embodiment of the present application, photosensitive sensor 201 can pass through two kinds
Possible mode is laid on the surface of AMOLED panel 203, specific as follows shown:
In the first possible implementation, shown in Figure 3, Fig. 3 is a kind of sense provided by the embodiments of the present application
The paving mode schematic diagram of optical sensor.In Fig. 3, photosensitive sensor 201 is equably laid on the table of AMOLED panel 203
Face can also anisotropically be laid on the surface of AMOLED panel 203, as long as ensuring that photosensitive sensor 201 can cover
Each region on 203 surface of AMOLED panel.Further, in uniform be laid with, between two photosensitive sensors 201
Distance be more than or equal to 0.02 millimeter, and be less than or equal to 0.2 millimeter in any value, it is exemplary, in the embodiment of the present application, two
A photosensitive sensor 201 can be with 0.05 millimeter of the surface for being laid on AMOLED panel 203 evenly and at intervals.
In the second possible implementation, shown in Figure 4, Fig. 4 is another kind provided by the embodiments of the present application
The paving mode schematic diagram of photosensitive sensor.In Fig. 4, AMOLED panel 203 is laterally including M pixel, AMOLED panel
203 longitudinally including N number of pixel, and every K adjacent pixel is correspondingly arranged a photosensitive sensor 201 in AMOLED panel 203；
Wherein, M is integer more than or equal to 720, and N is the integer more than or equal to 1080, K be more than or equal to 1, and it is whole less than or equal to 10
Number.Exemplary, in the embodiment of the present application, each pixel can be regarded as a lattice in AMOLED panel 203, often
One lattice (i.e. pixel) can be correspondingly arranged a photosensitive sensor 201.In display pattern, due to pixel very little, and
Therefore the ratio comparatively dense being arranged on organic luminous layer even if the part of setting photosensitive sensor does not have pixel, will not influence
The normal display of pattern.
After photosensitive sensor 201 is laid with completion, when the finger of user touches the cover board outside AMOLED panel 203
When glass 205, if mobile phone screen is in bright screen state, the included built-in light source of AMOLED panel 203 can project light, feel
Optical sensor 201 directly can convert the first electric signal for the optical signal that finger reflects；And it is in go out in mobile phone screen and shields shape
When state, the included light source of AMOLED panel 203 will not project light, and photosensitive sensor 201 can not acquire user's finger reflection
Optical signal is carried it is even more impossible to convert optical signals into the first electric signal at this point, control IC202 can control AMOLED panel 203
Built-in light source starting, so that mobile phone screen is become bright screen state by screen state of going out, thus acquire user's finger reflection optical signal,
And convert optical signals to the first electric signal.In addition, mobile phone screen be in go out shield state when, can be in AMOLED panel 203
One infrared optical sensor of upper setting so that go out shield state when, without starting the included built-in light source of AMOLED panel 203,
Light filling can be carried out by the infrared optical sensor, to acquire the optical signal of user's finger reflection, and convert optical signals into the
One electric signal, so that control IC202 can determine finger touch area according to first electric signal.It should be noted that
Infrared optical sensor and photosensitive sensor 201 in the application are arranged at the surface of AMOLED panel 203, and its set-up mode
Similar with the set-up mode of photosensitive sensor 201, i.e., infrared optical sensor can equably be laid on the table of AMOLED panel 203
Face, it is of course also possible to be correspondingly arranged an infrared optical sensor per K adjacent pixel in AMOLED panel 203, herein not
It is repeated again.
During determining finger touch area, control IC202, which can control, is laid on 203 table of AMOLED panel
All photosensitive sensors 201 in face acquire the optical signal of user's finger reflection, and receive that all photosensitive sensors send by light
The first electric signal that signal is converted in order to reduce the detection limit of data, also can control certainly and be laid on AMOLED panel
The operative sensor on 203 surfaces, i.e. first kind photosensitive sensor 2011 acquire the optical signal of user's finger reflection, and receive first
The first electric signal for being converted to optical signal that class photosensitive sensor 2011 is sent.Exemplary, shown in Figure 5, Fig. 5 is
A kind of distribution schematic diagram of first kind photosensitive sensor 2011 provided by the embodiments of the present application.Wherein, first kind photosensitive sensor
2011 can be the photosensitive sensor of particular row in AMOLED panel 203, such as the first row, the third line, fifth line and the 7th row
Odd-numbered line；Or the even number lines such as the second row, fourth line, the 6th row and the 8th row, shown in Figure 6, Fig. 6 is the application
The distribution schematic diagram for another first kind photosensitive sensor 2011 that embodiment provides；It is of course also possible to the first row, fifth line,
9th row multirow at equal intervals.Here, first kind photosensitive sensor can specifically be chosen according to actual needs, as long as
Control IC202 can determine finger touch area according to the first electric signal that first kind converter 2011 is sent.
So, control IC202 how according to first kind converter 2011 send the first electric signal determine finger Petting Area
Domain? optionally, in the embodiment of the present application, control IC202 determines that finger touch area can pass through according to the first electric signal
The possible mode of following two is realized, specific as follows:
In the first possible implementation: control IC202 can determine primary touch area according to the first electric signal；
And determine the central point of primary touch area；And then finger touch area is determined according to central point and preset fingerprint size.
Wherein, preset fingerprint size can be usually configured according to the size of user hand finger tip.Under normal conditions, target
Pickup area can for using central point as the border circular areas in the center of circle, the diameter of the border circular areas can for more than or equal to 5 millimeters, and
Less than or equal to any value in 10 millimeters.
Shown in Figure 7 in order to illustrate more clearly of the first possible implementation, Fig. 7 is the embodiment of the present application
A kind of schematic diagram that finger touch area is determined according to the first electric signal provided.Control IC202 is determining the photosensitive biography of the first kind
After sensor 2011 starts, when the finger of user touches 205 surface of cover-plate glass, first kind photosensitive sensor 2011 will be adopted
Collect the optical signal of user's finger reflection, and the optical signal is converted into the first electric signal, later again sends first electric signal
Control IC202, control IC202 is given to believe the signal value of the first electric signal of each first kind photosensitive sensor 2011 and benchmark
Number value is compared, if the signal value of the first electric signal is greater than or equal to baseline signal value, it is determined that the first electric signal is corresponding
Region where photosensitive sensor is primary touch area M (i.e. the contact area of user's finger and cover-plate glass 205)；In primary
After pickup area M is determined, control IC202 can be according to the of first kind photosensitive sensor 2011 in primary pickup area M
One electric signal establishes Fingerprint Model, and since the electric signal of finger centre point is most strong, the electric signal around finger centre point gradually subtracts
Weak, therefore, the Fingerprint Model of foundation can determine the centre of sphere according to the Sphere Measurement Model similar to a Sphere Measurement Model, which is
The central point A of primary touch area M, since the size of user hand finger tip is limited, determining primary touch area M's
After central point A, a length of 5 millimeters of the border circular areas of a diameter can be determined according to central point A and preset fingerprint size, it should
Border circular areas is finger touch area MD.
In the second possible implementation: control IC202 can detecte each in first kind photosensitive sensor 2011
The signal value of first electric signal of a photosensitive sensor；And the position where determining the maximum photosensitive sensor of signal value is primary
The central point of touch area；Finger touch area is determined further according to central point and preset fingerprint size later.
Shown in Figure 8 in order to illustrate more clearly of second of possible implementation, Fig. 8 is the embodiment of the present application
The another kind of offer determines the schematic diagram of finger touch area according to the first electric signal.Control IC202 is determining that the first kind is photosensitive
After sensor 2011 starts, when the finger of user touches 205 surface of cover-plate glass, first kind photosensitive sensor 2011 will
The optical signal of user's finger reflection is acquired, and the optical signal is converted into the first electric signal, later again sends out first electric signal
Control IC202 is given, the position where the maximum photosensitive sensor of signal value can be determined as primary acquisition zone by control IC202
The central point A of domain M, likewise, since the size of user hand finger tip is limited, in the central point for determining primary touch area M
After A, so that it may determine a length of 5 millimeters of the border circular areas of a diameter, the circle according to central point A and preset fingerprint size
Region is finger touch area.
Incorporated by reference to shown in Fig. 7 and Fig. 8, by above two possible implementation determine finger touch area MD it
Afterwards, control IC202 can control the starting of the second class photosensitive sensor 2012 in the MD of the finger touch area, and receive finger
The second class photosensitive sensor 2012 in the MD of touch area is believed according to the second light that the optical signal that user's finger reflects is converted to
Number, then the second electric signal is converted into fingerprint signal, to carry out fingerprint recognition according to fingerprint signal.It can be seen that the application is real
The display screen for applying example offer, when judging whether there is finger touch, the part by being laid on 203 surface of AMOLED panel is sensed
Device (i.e. first kind photosensitive sensor 2011) acquires the optical signal of user's finger reflection, and the first electricity that optical signal is converted to
Signal, so that control IC202 can determine primary touch area according to the first electric signal；And it determines and carries out fingerprint recognition
When, same control is laid on operative sensor (the photosensitive biography of the second class i.e. in finger touch area on 203 surface of AMOLED panel
Sensor 2012) starting, and receive the second class photosensitive sensor 2012 is converted to according to the optical signal that user's finger reflects the
Two optical signals, then the second electric signal is converted into fingerprint signal, to realize while fingerprint recognition, improve electronic equipment
Shield accounting.Also, in fingerprint identification process, due to only having the second class photosensitive sensor in finger touch area to acquire user
The optical signal of finger reflection, and the photosensitive sensor in other non-finger touch areas is not necessarily to acquire the light letter of user's finger reflection
Number, to reduce the data collection capacity of mobile phone.
Display screen 20 provided by the embodiments of the present application, the display screen 20 include photosensitive sensor 201, control IC202 and
AMOLED panel 203, polaroid 204 and the cover-plate glass 205 that AMOLED panel 203 is set gradually to cover-plate glass 205；Control
IC202 is connect with photosensitive sensor 201；Wherein, photosensitive sensor 201 is laid on the surface of AMOLED panel 203, and is arranged
Between AMOLED panel 203 and polaroid 204；Photosensitive sensor 201 is used for when user's finger touches cover-plate glass 205, will
The optical signal of user's finger reflection is converted to electric signal；Photosensitive sensor 201 is also used to for electric signal being sent to control IC202；
Control IC202 carries out fingerprint recognition for converting the electrical signal to fingerprint signal, and according to fingerprint signal.It can be seen that this Shen
Please embodiment provide display screen 20, judge whether there is finger touch when, by the portion for being laid on 203 surface of AMOLED panel
Sub-sensor (i.e. first kind photosensitive sensor 2011) acquires the optical signal of user's finger reflection, and optical signal is converted to
First electric signal, so that control IC202 can determine primary touch area according to the first electric signal；And it determines and carries out fingerprint
When identification, same control is laid on operative sensor (the second class sense i.e. in finger touch area on 203 surface of AMOLED panel
Optical sensor 2012) starting, and receive the second class photosensitive sensor 2012 and be converted to according to the optical signal that user's finger reflects
The second optical signal, then the second electric signal is converted into fingerprint signal, to realize while fingerprint recognition, improves electronics and set
Standby screen accounting.Also, in fingerprint identification process, due to there was only the second class photosensitive sensor 2012 in finger touch area
The optical signal of user's finger reflection is acquired, and the photosensitive sensor in other non-finger touch areas is anti-without acquiring user's finger
The optical signal penetrated, to reduce the data collection capacity of mobile phone.
Further, in order to the data volume that mobile phone acquires in fingerprint identification process is better described, it is assumed that the face AMOLED
The size of plate is 6 feet, and long and wide ratio is 18:9, i.e., 68.16 millimeters * 136.32 millimeters, in entire AMOLED panel area
In domain, the photosensitive sensor for presetting each integer millimeter is first kind photosensitive sensor, shares the 68*136=9248 first kind
Photosensitive sensor, during determining finger touch area by first kind photosensitive sensor, the data volume that needs to acquire are as follows:
9284*12bits*120HZ=13.3M；Further, passing through the second class photosensitive sensor acquisition in finger touch area
During the optical signal of user's finger reflection, 68*136+6*6*1080*2160/ (68.16*136.32)=9248+ is shared
9038=18286 photosensitive sensor, the data volume for needing to acquire: 18286*12bits*120Hz=26.3M, it can be seen that,
Display screen provided by the embodiments of the present application improves the screen accounting of electronic equipment while fingerprint recognition.Also, know in fingerprint
During not, due to there was only the optical signal of the second class photosensitive sensor acquisition user's finger reflection in finger touch area, and
Photosensitive sensor in other non-finger touch areas is not necessarily to acquire the optical signal of user's finger reflection, to reduce mobile phone
Data collection capacity.
Fig. 9 is the structural schematic diagram of a kind of electronic equipment 90 provided by the embodiments of the present application, shown in Figure 9, the electricity
Sub- equipment 90 may include:
Memory 901, display screen 20 shown in processor 902 and above-described embodiment.
Electronic equipment 90 shown in the embodiment of the present application can execute technical side shown in above-mentioned 20 embodiment of display screen
Case, realization principle and beneficial effect are similar, are no longer repeated herein.
Figure 10 is a kind of flow diagram of fingerprint identification method provided by the embodiments of the present application, is applied to electronic equipment,
The display screen of electronic equipment includes: that photosensitive sensor, control Integrated circuit IC and active matrix organic light-emitting second level body are shown
AMOLED panel, polaroid and the cover-plate glass that AMOLED panel is set gradually to cover-plate glass；Control IC and photosensitive sensor
Connection；Wherein, photosensitive sensor is laid on the surface of AMOLED panel, and is arranged between AMOLED panel and polaroid, asks
Shown in Figure 10, which includes:
S1001, user's finger touch cover-plate glass when, control IC receive the first electric signal.
Wherein, the first electric signal is what photosensitive sensor was converted to according to the optical signal that user's finger reflects.
S1002, control IC determine finger touch area according to the first electric signal.
S1003, when controlling IC and receiving fingerprint recognition instruction, control IC and the second electric signal be converted into fingerprint signal,
And fingerprint recognition is carried out according to fingerprint signal.
Wherein, the second electric signal is that the photosensitive sensor in finger touch area turns according to the optical signal that user's finger reflects
It gets in return.
Optionally, in the embodiment of the present application, S1002 controls IC according to the first electric signal, determines finger touch area, can
By by following two it is possible in a manner of realize:
In the first possible implementation: control IC determines primary touch area according to the first electric signal；Later again
Determine the central point of primary touch area；And finger touch area is determined according to central point and preset fingerprint size.
Wherein, control IC determines primary touch area, may include: according to the first electric signal
Control the signal value that IC detects the first electric signal；If the signal value of the first electric signal is greater than or equal to reference signal
Value, it is determined that the region where the corresponding photosensitive sensor of the first electric signal is primary touch area.
In the second possible implementation: control IC detects the signal value of the first electric signal；And determine the first telecommunications
Number the maximum photosensitive sensor of signal value where position be primary touch area central point；Further according to central point and preset
Fingerprint size determines finger touch area.
Fingerprint identification method shown in the embodiment of the present application can pass through technical solution shown in above-mentioned display screen embodiment
It realizes, realization principle and beneficial effect are similar, are no longer repeated herein.
Claims (10)
1. a kind of display screen, which is characterized in that be applied to electronic equipment, the display screen includes:
Photosensitive sensor, control Integrated circuit IC, active matrix organic light-emitting second level body show AMOLED panel, polaroid and lid
Glass sheet, the polaroid are arranged between the AMOLED panel and the cover-plate glass, the control IC with it is described photosensitive
Sensor connection；
Wherein, the photosensitive sensor is laid on the surface of the AMOLED panel, and is arranged in the AMOLED panel and institute
It states between polaroid；
The photosensitive sensor is used to convert the optical signal of user's finger reflection when user's finger touches the cover-plate glass
For electric signal；
The photosensitive sensor is also used to for the electric signal to be sent to the control IC；
The control IC is used to for the electric signal being converted into fingerprint signal, and carries out fingerprint recognition according to the fingerprint signal.
2. according to right to go 1 described in display screen, which is characterized in that
The photosensitive sensor is equably laid on the surface of the AMOLED panel.
3. display screen according to claim 2, which is characterized in that
The distance between described two photosensitive sensors be more than or equal to 0.02 millimeter, and be less than or equal to 0.2 millimeter in any value.
4. display screen according to claim 1, which is characterized in that
The AMOLED panel is laterally including M pixel, and the AMOLED panel is longitudinally including N number of pixel, described
A photosensitive sensor is correspondingly arranged per K adjacent pixel in AMOLED panel；Wherein, M is the integer more than or equal to 720, N
For the integer more than or equal to 1080, K is the integer more than or equal to 1, and less than or equal to 10.
5. display screen according to claim 1-4, which is characterized in that further include infrared optical sensor, wherein
The surface of the AMOLED panel is arranged in the infrared optical sensor.
6. a kind of electronic equipment characterized by comprising
Memory, processor and the described in any item display screens of the claims 1-5.
7. a kind of fingerprint identification method, which is characterized in that be applied to electronic equipment, the display screen of the electronic equipment includes: sense
Optical sensor, control Integrated circuit IC and active matrix organic light-emitting second level body show that AMOLED panel is successively set to cover-plate glass
The AMOLED panel, polaroid and the cover-plate glass set；The control IC is connect with the photosensitive sensor；Wherein,
The photosensitive sensor is laid on the surface of the AMOLED panel, and be arranged the AMOLED panel and the polaroid it
Between；The fingerprint identification method includes:
When user's finger touches cover-plate glass, the control IC receives the first electric signal, and first electric signal is the sense
Optical sensor is converted to according to the optical signal that user's finger reflects；
The control IC determines finger touch area according to first electric signal；
When the control IC receives fingerprint recognition instruction, the second electric signal is converted into fingerprint signal by control IC, and according to
The fingerprint signal carries out fingerprint recognition, second electric signal be photosensitive sensor in the finger touch area according to
What the optical signal of family finger reflection was converted to.
8. the method according to the description of claim 7 is characterized in that the control IC determines hand according to first electric signal
Refer to touch area, comprising:
The control IC determines primary touch area according to first electric signal；
The control IC determines the central point of the primary touch area；
The control IC determines the finger touch area according to the central point and preset fingerprint size.
9. according to the method described in claim 8, it is characterized in that, the control IC is determined just according to first electric signal
Grade touch area, comprising:
The control IC detects the signal value of first electric signal；
If the signal value of first electric signal is greater than or equal to baseline signal value, the control IC determines first telecommunications
Region where number corresponding photosensitive sensor is the primary touch area.
10. the method according to the description of claim 7 is characterized in that the control IC determines hand according to first electric signal
Refer to touch area, comprising:
The control IC detects the signal value of first electric signal；
Position where the control IC determines the maximum photosensitive sensor of signal value of first electric signal is the primary
The central point of touch area；
The control IC determines the finger touch area according to the central point and preset fingerprint size.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650785.0A CN109376569B (en) | 2017-08-02 | 2017-08-02 | Display screen, electronic equipment and fingerprint identification method |
| PCT/CN2018/086330 WO2019024561A1 (en) | 2017-08-02 | 2018-05-10 | Display screen, electronic device and fingerprint recognition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650785.0A CN109376569B (en) | 2017-08-02 | 2017-08-02 | Display screen, electronic equipment and fingerprint identification method |
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| Publication Number | Publication Date |
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| CN109376569A true CN109376569A (en) | 2019-02-22 |
| CN109376569B CN109376569B (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710650785.0A Active CN109376569B (en) | 2017-08-02 | 2017-08-02 | Display screen, electronic equipment and fingerprint identification method |
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| Country | Link |
|---|---|
| CN (1) | CN109376569B (en) |
| WO (1) | WO2019024561A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110134277A (en) * | 2019-05-10 | 2019-08-16 | 北京兆易创新科技股份有限公司 | A kind of screen construction and electronic product |
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| US20170193261A1 (en) * | 2015-12-30 | 2017-07-06 | Synaptics Incorporated | Determining which hand is being used to operate a device using a fingerprint sensor |
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| CN106778485A (en) * | 2016-11-16 | 2017-05-31 | 京东方科技集团股份有限公司 | Fingerprint recognition module, device, driving method and display device |
| CN106847868A (en) * | 2017-02-27 | 2017-06-13 | 信利光电股份有限公司 | A kind of full frame fingerprint recognition and touch control integrated displayer |
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| CN103995671A (en) * | 2014-06-06 | 2014-08-20 | 深圳市亚略特生物识别科技有限公司 | Touch screen unlocking method and device |
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| US20170193261A1 (en) * | 2015-12-30 | 2017-07-06 | Synaptics Incorporated | Determining which hand is being used to operate a device using a fingerprint sensor |
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| Publication number | Publication date |
|---|---|
| CN109376569B (en) | 2022-04-05 |
| WO2019024561A1 (en) | 2019-02-07 |
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