CN109657630A - Display panel, touch recognition method of display panel and display device - Google Patents
Display panel, touch recognition method of display panel and display device Download PDFInfo
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- CN109657630A CN109657630A CN201811591422.5A CN201811591422A CN109657630A CN 109657630 A CN109657630 A CN 109657630A CN 201811591422 A CN201811591422 A CN 201811591422A CN 109657630 A CN109657630 A CN 109657630A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003331 infrared imaging Methods 0.000 claims abstract description 79
- 230000006698 induction Effects 0.000 claims abstract description 47
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 238000003384 imaging method Methods 0.000 claims description 78
- 230000000007 visual effect Effects 0.000 claims description 38
- 238000009877 rendering Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 50
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000035807 sensation Effects 0.000 description 4
- 210000003462 vein Anatomy 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000003447 ipsilateral effect Effects 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000023077 detection of light stimulus Effects 0.000 description 1
- 230000023004 detection of visible light Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
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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
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/143—Sensing or illuminating at different wavelengths
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/147—Details of sensors, e.g. sensor lenses
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/64—Three-dimensional objects
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a display panel, a touch recognition method of the display panel and a display device. The display panel includes: an infrared light source; a substrate base plate; the first shading layer is positioned on the substrate and comprises at least two infrared imaging holes; the photosensitive device layer is located substrate base plate and keeps away from first light shield layer one side, and the photosensitive device layer includes a plurality of infrared induction units, and wherein, the parallax error through the formation of image of two at least infrared formation of image holes on infrared induction unit calculates 3D image information. The invention can construct a 3D model for biological information detection.
Description
Technical field
The present invention relates to field of display technology, more particularly, to the touch recognition side of a kind of display panel, display panel
Method and display device.
Background technique
With the development of electronic science and technology, fingerprint recognition has gradually been applied to mobile phone etc. and has shown in equipment that fingerprint is known
Do not belong to one kind of touch recognition, fingerprint recognition is divided into optical fingerprint identification and capacitance type fingerprint identification again.Fingerprint recognition is
Construct 2D image information by detecting and realize, although fingerprint for individual be it is unique, certain
In the case of using " clone fingerprint " of special facture equally can be realized the unlock to display equipment, when finger has spot or hand
It will cause and can not identify when referring to skin exfoliation, so fingerprint recognition still has certain limitation.
There are no construct 3D model realization by acquisition biological characteristic in the viewing area of display panel in the prior art
The precedent of biological information detection.
It thus provides the touch identification method and display device of a kind of display panel, display panel, are realized in viewing area
It is interior by acquire biological characteristic, building 3D model carry out biological information detection, be this field technical problem urgently to be resolved.
Summary of the invention
In view of this, the present invention provides a kind of display panel, the touch identification method of display panel and display device, solution
It has determined and the technical issues of 3D model carries out biological information detection is constructed by acquisition biological characteristic.
In order to solve the above-mentioned technical problem, in a first aspect, the present invention provides a kind of display panel, comprising:
Infrared light supply；
Underlay substrate；
First light shield layer is located on underlay substrate, and the first light shield layer includes at least two infrared imaging holes；
Sensor devices layer, sensor devices layer are located at underlay substrate far from the first light shield layer side, and sensor devices layer includes more
A infrared induction unit, wherein pass through the disparity computation 3D of imaging of at least two infrared imaging holes on infrared induction unit
Image information.
Conceived based on same one side, second aspect, the present invention provides a kind of touch identification method of display panel, comprising:
The infrared light for being touched main body reflection is imaged through infrared imaging hole in infrared induction area；
3D figure is calculated by the parallaxometer of imaging of at least two infrared imaging holes in corresponding infrared induction area
As information.
Conceived based on same one side, the third aspect, the present invention provides a kind of display device, including provided by the invention any
A kind of display panel.
Compared with prior art, display panel provided by the invention, the touch identification method of display panel and display device,
At least realize it is following the utility model has the advantages that
Display panel provided by the invention is provided with infrared light supply, infrared imaging hole and infrared induction unit, can pass through
The disparity computation 3D rendering information of imaging of at least two infrared imaging hole K1 on infrared induction unit Y1, the present invention can lead to
Acquisition biological characteristic is crossed, 3D model is constructed and is detected for biological information.For example it can be used for finger vena infomation detection, vein
Present body interior is hidden, the probability very little for being replicated and usurping, and (finger has spot or finger skin to the exception of skin surface
Skin falls off) it will not influence to detect, it can be improved user experience while improving the safety of equipment.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is display panel rough schematic view provided in an embodiment of the present invention；
Fig. 2 is infrared imaging borescopic imaging simplified principle schematic diagram in display panel provided in an embodiment of the present invention；
Fig. 3 is a kind of optional embodiment schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 4 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Fig. 5 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Fig. 6 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Fig. 7 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Fig. 8 is each imaging hole in display panel provided in an embodiment of the present invention in underlay substrate perspective view one；
Fig. 9 is each imaging hole in display panel provided in an embodiment of the present invention in underlay substrate perspective view two；
Figure 10 is display panel another kind optional embodiment schematic partial cross-sectional view provided in an embodiment of the present invention；
Figure 11 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Figure 12 is display panel another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Figure 13 is the touch identification method flow chart of display panel provided in an embodiment of the present invention；
Figure 14 is display device schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The present invention provides a kind of display panel, and Fig. 1 is display panel rough schematic view provided in an embodiment of the present invention.Fig. 2
For infrared imaging borescopic imaging simplified principle schematic diagram in display panel provided in an embodiment of the present invention.
Display panel as shown in Figure 1 includes: infrared light supply 101；Underlay substrate 102；First light shield layer 103 is located at substrate
On substrate 102, the first light shield layer 103 includes at least two infrared imaging hole K1；Sensor devices layer 104, sensor devices layer 104
Positioned at underlay substrate 102 far from 103 side of the first light shield layer, sensor devices layer 104 includes multiple infrared induction unit Y1, infrared
Sensing unit Y1 can sense infrared light, convert optical signals into electric signal and detected.Under normal conditions, infrared sense
Unit Y1 is answered to be arranged in array, an infrared imaging hole K1 has infrared imaging region corresponding thereto in sensor devices layer 104,
It is only schematic table that Y1 number of infrared induction unit in multiple infrared induction unit Y1, Fig. 1 is provided in infrared imaging region
Show.Wherein, the disparity computation 3D rendering information of the imaging by least two infrared imaging hole K1 on infrared induction unit Y1.
The infrared light that infrared light supply 101 issues, being irradiated to after touching main body C (can be human finger), touch the different portions of main body C
Position, which has the ferroheme in difference, such as blood of human body just to the absorption of infrared light and reflection case, the spy for absorbing infrared light
Property.So the infrared light through touching the reflection of main body C different parts can be irradiated to infrared induction list after penetrating infrared imaging hole K1
On first Y1, infrared induction unit Y1 is imaged after identifying to infrared light.
It should be noted that Fig. 1 is only to simplify the part-structure illustrated in display panel.The present invention is for infrared light supply
Setting position without limitation, the position of Fig. 1 mid-infrared light source 101 is only schematically shown, infrared light supply can be located at display
The viewing area of panel can also be located at the non-display area of display panel.
Parallax refers to the direction difference caused by the same target from two points for having certain distance.Such as Fig. 2 institute
Show, parallax applied in display panel exist that is, from sensor devices layer 104 corresponding with each infrared imaging hole K1
Infrared imaging region Z is correspondingly arranged on multiple infrared induction unit (not shown), there are two settings in infrared imaging area Z
In the display panel of infrared imaging hole K1, the infrared light reflected through the same object can penetrate two infrared imaging hole K1 respectively
It is imaged in its corresponding infrared imaging region Z afterwards, that is to say, that the corresponding detection zone of two infrared imaging hole K1 has
It is overlapping, and the same object is in overlapping region, the infrared light reflected through the same object could simultaneously by with it is two infrared
The corresponding infrared induction unit of imaging hole K1 detects respectively.That is, being penetrated respectively respectively by two infrared imaging region Z
From infrared imaging hole K1 observe same object, since the angle of observed objects is different, then the shape for the object seen has
Difference, i.e., there are parallaxes between the imaging in two infrared imaging region Z, by image disparity in the Z of infrared imaging region
It carries out calculating the 3D model that can construct object.Example of the invention is only indicated so that two infrared imaging hole K1 are arranged,
Optionally, it can also be and three or more infrared imaging holes be set, then it can be according to the corresponding imaging in multiple infrared imaging holes
Parallax constructs 3D model.
Display panel provided by the invention is provided with infrared light supply, infrared imaging hole and infrared induction unit, can pass through
The disparity computation 3D rendering information of imaging of at least two infrared imaging hole K1 on infrared induction unit Y1, constructs 3D model
It is detected for biological information.For example can be used for finger vena infomation detection, vein hides present body interior, is replicated and steals
Probability very little, and the exception (finger has spot or finger skin to fall off) of skin surface will not influence to detect, it can
Improve the safety that user experience improves equipment simultaneously.
With continued reference to Fig. 2, the spacing between two adjacent infrared imaging hole K1 is d2, wherein 2mm≤d2≤10mm.
The linear distance that d2 is spaced between two adjacent infrared imaging hole K1.If the spacing mistake between two infrared imaging holes
It is small, may result in parallax through two infrared imaging holes between the imaging on respective infrared induction unit Y1 compared with
Small, i.e., vision difference is small, it is more difficult to construct accurate 3D model.If the spacing between two infrared imaging holes is excessive, two
A infrared imaging hole overlapping region that can be detected can be relatively small, and the information content that can be used in constructing 3D model can be less, phase
Accuracy when that answers also will affect detection.The spacing being arranged between two adjacent infrared imaging holes in the present invention meets certain
Range guarantees have preferable parallax, while the information content guaranteed for constructing 3D model is enough, can guarantee
The accuracy of biological information detection.
In one embodiment, Fig. 3 is a kind of optional embodiment schematic diagram of display panel provided in an embodiment of the present invention.
As shown in figure 3, display panel further includes display layer 106, display layer 106 is located at the first light shield layer 103 far from underlay substrate 102 1
Side.Display panel can also include array layer 105, and array layer 105 is located at the first light shield layer 103 far from 106 side of display layer.It is aobvious
Show in layer 106 to may include multiple display devices 1061, optionally, display device 1061 can be organic luminescent device.Aobvious
Show that a sub-pixel includes an open region in panel, an open region includes display device 1061, in two adjacent openings
It is non-open region between area, it is generally the case that the zonal ray transmitance where display device is substantially zeroed, in order to realize
Infrared light through touching main body reflection can penetrate infrared imaging hole and reach sensor devices layer, design infrared imaging in the present invention
Hole K1 is located at non-open region (region i.e. between two adjacent display devices 1061).In the embodiment, first
At least with the interval of array layer and underlay substrate between light shield layer and sensor devices layer, that is, guarantee infrared imaging hole and at image position
Setting has certain distance between (on sensor devices layer), can satisfy the image distance size requirement of pinhole imaging system principle, and then can
Guarantee that object to be detected can not be needed additional thicknesses of layers is arranged and be wanted to meet image distance in sensor devices layer complete imaging
It asks, is conducive to the slimming of display panel.Optionally, in above embodiment, it is remote that array layer can also be located at the first light shield layer
From underlay substrate side.
In one embodiment, Fig. 4 is display panel another kind optional embodiment provided in an embodiment of the present invention signal
Figure.As shown in figure 4, display panel further includes display layer 106, display layer 106 is located at the first light shield layer 103 close to underlay substrate
102 sides.Display panel further includes array layer 105, and array layer 105 is between underlay substrate 102 and display layer 106.Display
Layer 106 includes multiple display devices 1061, and optionally, display device 1061 can be organic luminescent device.Optionally, in order to protect
The display performance for demonstrate,proving display panel is unaffected, and aperture K2 as shown in the figure is also provided in the first light shield layer 103, is opened
Hole K2 is corresponding with display device 1061, i.e., sets in the first light shield layer 103 of each corresponding top of display device 1061
Set an aperture K2.In the embodiment, between the first light shield layer and sensor devices layer at least have display layer, array layer and
The interval of underlay substrate, can guarantee between infrared imaging hole and imaging position (on sensor devices layer) have it is enough away from
From can satisfy the image distance size requirement of pinhole imaging system principle, and then can guarantee that object to be detected can be in sensor devices layer
Complete imaging does not need to be arranged additional thicknesses of layers to meet image distance requirement, is conducive to the slimming of display panel.In addition,
Influence when showing in order to avoid the first light shield layer to display panel, can be set the distance between the first light shield layer and display layer
Small as far as possible, the light that guarantee display device issues as far as possible is not blocked by the first light shield layer, to guarantee display panel aperture opening ratio.
In some alternative embodiments, the making material of the first light shield layer also can choose visible light can penetrate and
The impenetrable material of infrared light.
Optionally, the making material of the first light shield layer may include metal material.In one embodiment, the first light shield layer
Making material can be identical as the making material of black matrix in display panel.
Visual light imaging hole is also provided in display panel provided by the invention, by visual light imaging hole and visible
The detection of light sensation fingerprint recognition is realized in the cooperation of photoinduction unit, and then realizes that display panel has the detection of 3D biological characteristic simultaneously
With the function of 2D biological characteristic detection.The light source that fingerprint recognition is used when detecting can be the external light source being separately provided, or
The display device in display layer can also be multiplexed as light source.
In one embodiment, it is seen that light imaging hole and infrared imaging hole are located in the same light shield layer.Fig. 5 is the present invention
The display panel another kind optional embodiment schematic diagram that embodiment provides.As shown in figure 5, the first light shield layer 103 further includes more
A visual light imaging hole K3, sensor devices layer 104 further include multiple visible light sensing unit Y2, one of visual light imaging hole
K3 needs to be corresponding with multiple visible light sensing unit Y2.The first light shield layer 103 can be located at far from substrate with display layer 106 in figure
Illustrated 102 side of substrate.Optionally, display layer can also be located at the first light shield layer close to underlay substrate side.In figure only
Two visual light imaging hole K3 are shown schematically, are needed in practice according to the multiple visual light imaging hole K3 of transmission in sensor devices
Imaging joint on layer 104 goes out a complete fingerprint pattern to realize fingerprint recognition.Fig. 5 when light sensation fingerprint recognition only to be multiplexed
Display device in display layer is schematically shown as light source.Through touching the visible light ray of main body C reflection, visible light is penetrated
Sensor devices layer 104 is reached after imaging hole K3, and electric signal is converted optical signal by the detection of visible light sensing unit Y2.
It is raw can to open 3D when there is touch main body touch display panel simultaneously for the display panel that the embodiment provides
The function of the detection of object feature and the detection of 2D biological characteristic, is known by building 3D model (such as 3D finger vena model) and 2D fingerprint
Other model carries out common cooperation detection, has a dual fail-safe, two detections all by when just to verify touch operation effective for calculation, can
The effective accuracy and safety for improving detection.Optionally, 3D biological characteristic detection function and 2D biological characteristic detection function
It can also be respectively applied in different usage scenarios, can also be arranged according to security level difference and apply different detection function
Energy.In addition in the embodiment, visual light imaging hole is set and infrared imaging hole is located at same light shield layer, without increase photomask
The etching technics of layer and light shield layer, only needing to can be achieved with a light shield layer production etching technics in display panel production can
The production of light-exposed imaging hole and infrared imaging hole does not increase display panel thicknesses of layers, while simplifying manufacturing process, improves life
Produce efficiency.
Optionally, it is seen that light imaging hole can also be located at different light shield layers from infrared imaging hole.
In one embodiment, Fig. 6 is display panel another kind optional embodiment provided in an embodiment of the present invention signal
Figure.As shown in fig. 6, display panel further includes the second light shield layer 107, the second light shield layer 107 is located at display layer 106 close to substrate base
102 side of plate；Second light shield layer 107 includes multiple visual light imaging hole K3；Sensor devices layer 104 further includes multiple visible light sensations
Answer unit Y2.In figure only by taking the first light shield layer 103 and the second light shield layer 107 can be located at the two sides of display layer 106 as an example.
Optionally, be additionally provided with aperture K3' in the first light shield layer 103, on perpendicular to display panel direction aperture K3' and visible light at
Picture hole K3 is corresponding, guarantees that light can penetrate the first light shield layer 103 from aperture K3', after then penetrating visual light imaging hole K3
On the visible light sensing unit Y2 for reaching sensor devices layer 104；It is additionally provided with aperture K1' in the second light shield layer 107, is being hung down
It is directly corresponding with infrared imaging hole K1 in aperture K1' on display panel direction, after guaranteeing that infrared light penetrates infrared imaging hole K1,
The second light shield layer 107 is penetrated by aperture K1' again, to reach on the infrared induction unit Y1 of sensor devices layer 104.
In one embodiment, Fig. 7 is display panel another kind optional embodiment provided in an embodiment of the present invention signal
Figure.As shown in fig. 7, display panel further includes the second light shield layer 107, the second light shield layer 107 is located at 106 layers of display far from substrate base
102 side of plate；Second light shield layer 107 includes multiple visual light imaging hole K3；Sensor devices layer 104 further includes multiple visible light sensations
Answer unit Y2.Optionally, it is additionally provided with aperture K1' on the second light shield layer 107, the aperture on perpendicular to display panel direction
K1' is corresponding with infrared imaging hole K1；It is additionally provided with aperture K3' in the first light shield layer 103, on perpendicular to display panel direction
Aperture K3' is corresponding with visual light imaging hole K3.
Optionally, the first light shield layer and the second light shield layer can also be located at the ipsilateral of display layer, i.e. the first light shield layer and the
Two light shield layers can be all located at display layer close to underlay substrate side；Or first light shield layer and the second light shield layer be all located at display
Layer is far from underlay substrate side.When the first light shield layer and the second light shield layer be located at display layer it is ipsilateral when, the first light shield layer and
The upper and lower position of two light shield layers is without limitation.
In one embodiment, Fig. 8 is that each imaging hole is thrown in underlay substrate in display panel provided in an embodiment of the present invention
Shadow schematic diagram one.Fig. 9 is each imaging hole in display panel provided in an embodiment of the present invention in underlay substrate perspective view two.Such as
Shown in Fig. 8 and Fig. 9, multiple visual light imaging hole K3 are arranged in array to form projected array in the orthographic projection Z1 of underlay substrate 102；
Infrared imaging hole K1 underlay substrate 102 orthographic projection Z2 except projected array.Visual light imaging in projected array in figure
The number of hole K3 is only schematically shown.Fig. 8, which is shown, includes the case where two infrared imaging holes K1, Fig. 9 in display panel
It shows and includes the case where four infrared imaging hole K1 in display panel.The visual light imaging hole and red of embodiment signal
The arranging situation of outer smooth imaging hole is equally applicable to the corresponding embodiment of above-mentioned Fig. 5 to Fig. 7.The embodiment can guarantee visible
Light imaging hole and infrared imaging hole correspond to identical detection zone in display panel, when have touch main body touch display panel
When, by respective visual light imaging region after touching the visible light that main body reflects and penetrating multiple visual light imaging holes
Visible light sensing unit detects, and the detection information in multiple visual light imaging regions is spliced into complete fingerprint image after processing
Information.By respective infrared imaging area after the infrared light through touching main body reflection penetrates at least two infrared imaging holes simultaneously
Infrared induction unit in domain detects, and it is special that the image disparity at least two infrared imaging regions constructs 3D biology after processing
Levy detection model.The 2D biological characteristic (information in fingerprint detection) and 3D biological characteristic that touch main body are examined simultaneously to realize
It surveys.Optionally, unlatching when can also be different for 2D biological characteristic detection function and 3D biological characteristic detection function is divided with realizing
In usage scenario that Ying Yongyu be not different.
It is arranged in any embodiment in visual light imaging hole and infrared imaging hole at the same time, two adjacent visual light imagings
Spacing between hole is less than the spacing between two adjacent infrared imaging holes.In order to realize the identification of finger print information, need to set
A fairly large number of visual light imaging hole is set, each visual light imaging hole is known respectively in the corresponding imaging region of sensor devices layer
Not Chu partial fingerprints image information (being equivalent to fragment type fingerprint image), shape after a large amount of fragment type fingerprint image is spliced
At complete fingerprint image, so the required precision to visual light imaging is higher, be arranged spacing between visual light imaging hole compared with
It is small, it can guarantee the integrality and accuracy of fingerprint image detection.And when realizing the detection of infrared 3D biological characteristic, in order to guarantee have
There is preferable parallax, needs to be arranged sufficiently large spacing between two adjacent infrared imaging holes.
Optionally, as shown in Figure 9, the spacing between two adjacent visual light imaging hole K3 is d1, wherein 0.5mm
≤d1≤1mm.The spacing being arranged between visual light imaging hole meets a certain range, avoids spacing is too small from causing adjacent two can
The corresponding imaging region of light-exposed imaging hole is overlapping excessively to increase the operand of data processing, while avoiding spacing is excessive from leading to portion
Dividing the light of finger-print region reflection cannot be imaged through visual light imaging hole in sensor devices layer, and then lead to partial fingerprints information
Loss cannot be spliced into complete information in fingerprint.Optionally, adjacent two infrared imaging hole K1 as shown in Figure 9 it
Between spacing be d2, wherein 2mm≤d2≤10mm.The spacing being arranged between two adjacent infrared imaging holes meets certain model
It encloses and guarantees to have preferable parallax, while the information content guaranteed for constructing 3D model is enough, can guarantee to give birth to
The accuracy of object infomation detection.
The diameter in infrared imaging hole is bigger, and the light quantity that can penetrate infrared imaging hole arrival infrared induction unit is more, phase
That answers can be improved the accuracy of 3D biological characteristic detection.Likewise, the diameter in visual light imaging hole is bigger, can correspondingly mention
The accuracy of high 2D biological characteristic detection (fingerprint recognition).In practice, the diameter in infrared imaging hole and visual light imaging hole is straight
Diameter can be designed according to the accuracy requirement of detection.Optionally, while guaranteeing that the accuracy of 3D biological characteristic detection and 2D are raw
The diameter that infrared imaging hole can be set while the accuracy of object feature detection is greater than the diameter in visual light imaging hole.
Sensing device layer is provided with visible light sensing unit and infrared induction unit in display panel provided by the invention
When.It can be each visible light sensing unit and infrared induction unit individually complete, it is seen that photoinduction unit
Induction detection visible light, infrared induction unit can incude detection infrared light.It will be seen that photoinduction unit is arranged in visual light imaging
The corresponding imaging region in hole, by the setting of infrared induction unit in the corresponding imaging region in infrared imaging hole, i.e. visible light induction is single
Member and infrared induction unit are different absolute construction.
Optionally, it is also possible to the sensing unit that whole face production has photobehavior, it is then special by the way that different optical filterings are arranged
Property filter layer realize different regions have different photobehaviors.Figure 10 is that display panel provided in an embodiment of the present invention is another
A kind of optional embodiment schematic partial cross-sectional view.As shown in Figure 10, sensor devices layer 104 includes visible light-sensing region Q1 and red
Outer induction zone Q2 is provided with visible light filter layer L1 in visible light-sensing region Q1, it is seen that light filter layer L1 can guarantee visible light
Through, and other light are blocked by visible light filter layer L1, it is remote that multiple visible light sensing unit Y2 are located at visible light filter layer L1
From 102 side of underlay substrate, in infrared induction area, Q2 is provided with infrared absorption filter photosphere L2, and infrared absorption filter photosphere L2 can guarantee infrared light
Through, and other light are blocked, multiple infrared induction unit Y1 are located at infrared absorption filter photosphere L2 far from 102 side of underlay substrate.
In the display panel that the embodiment provides, it is seen that photoinduction unit and infrared induction unit can be in identical manufacturing process
It completes, then realizes the detection to different light, energy by making different filter layers on different regions
Enough simplify the manufacture craft of sensing unit.
In one embodiment, Figure 11 is display panel another kind optional embodiment provided in an embodiment of the present invention signal
Figure.As shown in figure 11, display panel includes the viewing area AA and non-display area BA for surrounding viewing area AA, and infrared light supply 101 is located at
Non-display area BA.The setting position of infrared light supply 101 and setting number are only schematically shown in figure, infrared light supply 101
It can be set away from the bio-detection area the 3D closer position Q3 in viewing area.Optionally, it also can be set in the AA of viewing area
Multiple bio-detection areas 3D or viewing area AA whole face can realize 3D biological detection.For infrared light supply in the present invention
Number without limitation, can be designed according to specific requirements in practice.Infrared light supply is arranged in non-display area, sets to viewing area
Count no any influence.
In one embodiment, Figure 12 is display panel another kind optional embodiment provided in an embodiment of the present invention signal
Figure.As shown in figure 12, display panel includes the viewing area AA and non-display area BA for surrounding viewing area AA, and infrared light supply 101 is located at
Viewing area AA.Optionally, the infrared light supply 101 for occupying the space size of a sub-pixel can be designed, to 3D biological detection
When region Q3 carries out the detection of 3D biological characteristic, which is opened, when display panel is normally shown, the infrared light supply
101 close.Infrared light supply 101 takes up space smaller in the AA of viewing area, has substantially no effect on viewing area display effect.
The present invention also provides a kind of touch identification method of display panel, Figure 13 is display surface provided in an embodiment of the present invention
The touch identification method flow chart of plate, as shown in figure 13, touch control identification method includes:
Step S101: the infrared light for being touched main body reflection is imaged through infrared imaging hole in infrared induction area；
Step S102: pass through the parallaxometer of imaging of at least two infrared imaging holes in corresponding infrared induction area
Calculate 3D rendering information.
The schematic diagram for the touch control identification method that the embodiment provides can refer to shown in Fig. 2, and touch-control provided by the invention is known
Other method can be applied to the display panel that above-mentioned any embodiment provides, and respectively corresponded to by least two infrared imaging holes
Infrared induction area on imaging disparity computation 3D rendering information, construct 3D model for biological information detect.Such as it can
To be used for finger vena infomation detection, vein hides present body interior, the probability very little for being replicated and usurping, and skin surface
Exception (finger has spot or finger skin to fall off) will not influence to detect, can be improved user experience while improving equipment
Safety.
Further, touch control identification method further include: touched the visible light of main body reflection through visual light imaging Kong Ke
It is imaged on light-exposed induction zone；2D image information is calculated by the imaging on multiple visible light-sensing regions.Pass through multiple visible lights
Imaging on induction zone can be spliced into 2D image information, i.e. finger print information, realize fingerprint recognition detection.Optionally, Ke Yitong
Cross 3D rendering information and 2D image information and carry out common cooperation detection, there is dual fail-safe, two detections all by when just calculation verifying
Touch operation is effective, can effectively improve the accuracy and safety of detection.Optionally, 3D rendering infomation detection and 2D image
Infomation detection can also be respectively applied in different usage scenarios, and it is different application can also to be arranged according to security level difference
Detection function.
The present invention also provides a kind of display device, Figure 14 is display device schematic diagram provided in an embodiment of the present invention.Such as figure
Display device shown in 14 includes the display panel 100 that any embodiment of that present invention provides.
Through the foregoing embodiment it is found that display panel provided by the invention, the touch identification method of display panel and display
Device, at least realize it is following the utility model has the advantages that
Display panel provided by the invention is provided with infrared light supply, infrared imaging hole and infrared induction unit, can pass through
The disparity computation 3D rendering information of imaging of at least two infrared imaging hole K1 on infrared induction unit Y1, the present invention can lead to
Acquisition biological characteristic is crossed, 3D model is constructed and is detected for biological information.For example it can be used for finger vena infomation detection, vein
Present body interior is hidden, the probability very little for being replicated and usurping, and (finger has spot or finger skin to the exception of skin surface
Skin falls off) it will not influence to detect, it can be improved user experience while improving the safety of equipment.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (15)
1. a kind of display panel characterized by comprising
Infrared light supply；
Underlay substrate；
First light shield layer is located on the underlay substrate, and first light shield layer includes at least two infrared imaging holes；
Sensor devices layer, the sensor devices layer are located at the underlay substrate far from first light shield layer side, described photosensitive
Device layer includes multiple infrared induction units, wherein by at least two infrared imaging holes in the infrared induction unit
On imaging disparity computation 3D rendering information.
2. display panel according to claim 1, which is characterized in that
The display panel further includes display layer,
The display layer is located at first light shield layer far from the underlay substrate side；Or the display layer is located at described the
One light shield layer is close to the underlay substrate side.
3. display panel according to claim 2, which is characterized in that
First light shield layer further includes multiple visual light imaging holes；
The sensor devices layer further includes multiple visible light sensing units.
4. display panel according to claim 2, which is characterized in that
The display panel further includes the second light shield layer, second light shield layer be located at the display layer far from or close to the lining
Substrate side；Second light shield layer includes multiple visual light imaging holes；
The sensor devices layer further includes multiple visible light sensing units.
5. display panel according to claim 3 or 4, which is characterized in that
Between spacing between the visual light imaging hole of adjacent two is less than between two adjacent infrared imaging holes
Away from.
6. display panel according to claim 5, which is characterized in that between the visual light imaging hole of adjacent two
Spacing is d1, wherein 0.5mm≤d1≤1mm.
7. display panel according to claim 3 or 4, which is characterized in that
Multiple visual light imaging holes are arranged in array to form projected array in the orthographic projection of the underlay substrate；
The infrared imaging hole the underlay substrate orthographic projection except the projected array.
8. display panel according to claim 3 or 4, which is characterized in that
The sensor devices floor includes visible light-sensing region and infrared induction area, and the visible light-sensing region is provided with visible light
Filter layer, multiple visible light sensing units are located at the visible light filter layer far from the underlay substrate side, described
Infrared induction area is provided with infrared absorption filter photosphere, and multiple infrared induction units are located at the infrared absorption filter photosphere far from the substrate
Substrate side.
9. display panel according to claim 3 or 4, which is characterized in that
The diameter in the infrared imaging hole is greater than the diameter in the visual light imaging hole.
10. display panel according to claim 1, which is characterized in that
Spacing between the infrared imaging hole of adjacent two is d2, wherein 2mm≤d2≤10mm.
11. display panel according to claim 1, which is characterized in that
The display panel includes viewing area and the non-display area for surrounding the viewing area, and the infrared light supply is located at described non-aobvious
Show area.
12. display panel according to claim 1, which is characterized in that
The display panel includes viewing area and the non-display area for surrounding the viewing area, and the infrared light supply is located at the display
Area.
13. a kind of touch identification method of display panel characterized by comprising
The infrared light for being touched main body reflection is imaged through infrared imaging hole in infrared induction area；
It is calculated by the parallaxometer of imaging of at least two infrared imaging holes in corresponding infrared induction area
3D rendering information.
14. touch identification method according to claim 13, which is characterized in that further include:
Visible light through touching main body reflection is imaged on visible light-sensing region through visual light imaging hole；
2D image information is calculated by the imaging on multiple visible light-sensing regions.
15. a kind of display device, which is characterized in that including the described in any item display panels of claim 1 to 12.
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