CN110290242A - Display device, electronic equipment and image acquiring method - Google Patents
Display device, electronic equipment and image acquiring method Download PDFInfo
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- CN110290242A CN110290242A CN201910548443.7A CN201910548443A CN110290242A CN 110290242 A CN110290242 A CN 110290242A CN 201910548443 A CN201910548443 A CN 201910548443A CN 110290242 A CN110290242 A CN 110290242A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
This application discloses a kind of display devices.Display device includes liquid crystal layer, photosensitive layer, collimation layer and cover board；Photosensitive layer includes multiple photosensitive units, and photosensitive unit includes veiling glare photosensitive unit；Collimation layer and liquid crystal layer are located at the opposite two sides of photosensitive layer, and collimation layer includes multiple collimation units, and collimation unit offers light hole, and light hole is directed at photosensitive unit, and light hole can allow for optical signal to pass through to photosensitive unit；Cover board and photosensitive layer are located at the opposite two sides of collimation layer, and cover board includes opposite display surface and the back side, and ink layer is provided on the back side, and ink layer is corresponding with the position of veiling glare photosensitive unit, and ink layer is used to obstruct the optical signal for penetrating cover board from the external world.Disclosed herein as well is a kind of electronic equipment and image acquiring methods.Can be by the distribution area of the multiple photosensitive units of setting according to demand, so that the area of multiple photosensitive units distribution accounts for the large percentage of the area of display surface, user can identify over a substantial area, better user experience.
Description
Technical field
This application involves field of display technology, more specifically, are related to a kind of display device, electronic equipment and image and obtain
Method.
Background technique
In the related art, mobile phone can configure fingerprint recognition mould group and display module, and fingerprint recognition mould group can be used to identify
User identity, display module can be used for showing image, have at present and fingerprint recognition mould group is stacked in the lower section of display module
Mode, user contacts in display module that position corresponding with fingerprint recognition mould group is with typing fingerprint, however, display module is aobvious
Show in region, only very small part touches for user to carry out fingerprint recognition, and user experience is poor.
Summary of the invention
The application embodiment provides a kind of display device, electronic equipment and image acquiring method.
The display device of the application embodiment includes liquid crystal layer, photosensitive layer, collimation layer and cover board；The photosensitive layer includes
Multiple photosensitive units, the photosensitive unit include veiling glare photosensitive unit；The collimation layer and the liquid crystal layer are located at described photosensitive
The opposite two sides of layer, the collimation layer includes multiple collimation units, and the collimation unit offers light hole, the light hole
It is directed at the photosensitive unit, the light hole can allow for optical signal to pass through to the photosensitive unit；The cover board and institute
The opposite two sides that photosensitive layer is located at the collimation layer are stated, the cover board includes opposite display surface and the back side, on the back side
It is provided with ink layer, the ink layer is corresponding with the position of the veiling glare photosensitive unit, and the ink layer is for obstructing from the external world
Penetrate the optical signal of the cover board.
The electronic equipment of the application embodiment includes the display device of casing and the application embodiment, the display dress
Set installation on the housing.
The image acquiring method of the application embodiment is used for display device, and the display device includes liquid crystal layer, photosensitive
Layer, collimation layer and cover board；The photosensitive layer includes multiple photosensitive units, and the photosensitive unit includes veiling glare photosensitive unit；It is described
Collimation layer and the liquid crystal layer are located at the opposite two sides of the photosensitive layer, and the collimation layer includes multiple collimation units, described
Collimation unit offers light hole, and the light hole is directed at the photosensitive unit, and the light hole can allow for optical signal to pass through
And reach the photosensitive unit；The cover board and the photosensitive layer are located at the opposite two sides of the collimation layer, the cover board packet
Opposite display surface and the back side are included, ink layer, the position of the ink layer and the veiling glare photosensitive unit are provided on the back side
Correspondence is set, the ink layer is used to obstruct the optical signal for penetrating the cover board from the external world；Described image acquisition methods include: to receive
Imaging optical signal including target optical signal arrives after the target optical signal successively passes through the display surface and the light hole
Up to the photosensitive unit；Interference electric signal is obtained according to the received optical signal of the veiling glare photosensitive unit；And according to the imaging
Optical signal and the interference electric signal obtain image.
In the display device of the application embodiment, electronic equipment and image acquiring method, photosensitive unit be can receive from outer
Boundary enters through the optical signal of cover board and light hole, and the figure for touching object on the display face can be obtained according to the optical signal
Picture, image can be used for fingerprint recognition, meanwhile, it can be by the distribution area of the multiple photosensitive units of setting, so that more according to demand
The area of a photosensitive unit distribution accounts for the large percentage of the area of display surface, and user can carry out fingerprint knowledge over a substantial area
Not, better user experience.In addition, position corresponding with veiling glare photosensitive unit is provided with ink layer, ink layer barrier on the back side
The external world passes through the optical signal of cover board, while ink layer can simulate cover board to the reflex of the optical signal inside display device,
So that veiling glare photosensitive unit only receives the interference optical signal in display device and generates interference electric signal, interference electricity can be passed through
The image of signal correction object, to obtain the image of accurate object.
The additional aspect and advantage of presently filed embodiment will be set forth in part in the description, partially will be from following
Description in become obvious, or recognized by the practice of presently filed embodiment.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the application is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the electronic equipment of the application embodiment；
Fig. 2 is the cross section structure schematic diagram of the display device of the application embodiment；
Fig. 3 is that the display device of the application embodiment is used for the schematic illustration of fingerprint recognition；
Fig. 4 is the schematic perspective view of the display device of the application embodiment；
Fig. 5 is the photosensitive layer of the application embodiment and the structural schematic diagram of display driving layer；
Fig. 6 is the planar structure schematic diagram of the second substrate of the application embodiment；
Fig. 7 is the photosensitive layer of the application embodiment and the structural schematic diagram of imager chip；
Fig. 8 is the schematic perspective view of the cover board of the application embodiment；
Fig. 9 is the side structure schematic view of the display device of the application embodiment；
Figure 10 is the flow diagram of the image acquiring method of the application embodiment；
Figure 11 is the side structure schematic view of the display device of the application embodiment；
Figure 12 is the flow diagram of the image acquiring method of the application embodiment；
Figure 13 and Figure 14 is the flow diagram of the image acquiring method of the application embodiment.
Main element symbol description:
It is electronic equipment 1000, display device 100, backlight layer 10, bottom surface 11, the first polarizing layer 20, first substrate 30, photosensitive
Layer 40, photosensitive unit 41, veiling glare photosensitive unit 411, noise photosensitive unit 412, infrared photosensitive unit 413, circuit unit 42, sense
Optical circuit unit 421, Noise Circuits unit 422, liquid crystal layer 50, the second substrate 60, display unit 61, shading piece 62, collimation layer
70, collimation unit 71, light hole 711, matrix 72, lightproof unit 73, the second polarizing layer 80, cover board 90, display surface 91, viewing area
911, the back side 92, ink layer 93, casing 200, imager chip 300, object 2000, display driving layer 1a, display driver element
1a1。
Specific embodiment
Presently filed embodiment is described further below in conjunction with attached drawing.Same or similar label is from beginning in attached drawing
To the same or similar element of expression or element with the same or similar functions eventually.
In addition, the presently filed embodiment described with reference to the accompanying drawing is exemplary, it is only used for explaining the application's
Embodiment, and should not be understood as the limitation to the application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Referring to Fig. 1, the electronic equipment 1000 of the application embodiment includes casing 200 and display device 100.Display dress
100 are set to be mounted on casing 200.Specifically, electronic equipment 1000 can be mobile phone, tablet computer, display, notebook electricity
Brain, automatic teller machine, gate, smartwatch, head show the equipment such as equipment, game machine, and the application is by taking electronic equipment 1000 is mobile phone as an example
It is illustrated, it will be understood that the concrete form of electronic equipment 1000 is not limited to mobile phone.
Casing 200 can be used for mount display 100, and in other words, the installation that casing 200 can be used as display device 100 carries
Body, casing 200 can also be used to install the functional modules such as power supply unit, imaging device, the communication device of electronic equipment 1000, so that
Casing 200 provides the protection of shatter-resistant, waterproof etc. for functional module.
Display device 100 can be used for showing the images such as picture, video, text.Display device 100 is mounted on casing 200,
Specifically, display device 100 may be mounted on the front of casing 200 or display device 100 is mounted on the back of casing 200
Perhaps display device 100 is mounted on the front and the back side of casing 200 simultaneously on face or display device 100 is mounted on casing
On 200 side, this is not restricted.In example as shown in Figure 1, display device 100 is mounted on the front of casing 200.
Please see Fig. 2 to Fig. 4, display device 100 includes liquid crystal layer 50, photosensitive layer 40, collimation layer 70 and cover board 90.It is photosensitive
Layer 40 includes multiple photosensitive units 41, and photosensitive unit 41 includes veiling glare photosensitive unit 411.It collimates layer 70 and liquid crystal layer 50 is located at sense
The opposite two sides of photosphere 40, collimation layer 70 includes multiple collimation units 71, and collimation unit 71 offers light hole 711, light passing
Hole 711 is directed at photosensitive unit 41, and light hole 711 can allow for optical signal to pass through to photosensitive unit 41.Incorporated by reference to Fig. 8, lid
Plate 90 and photosensitive layer 40 are located at the opposite two sides of collimation layer 70, and cover board 90 includes opposite display surface 91 and the back side 92, the back side
Ink layer 93 is provided on 92, ink layer 93 is corresponding with the position of veiling glare photosensitive unit 411, and ink layer 93 is for obstructing from the external world
Penetrate the optical signal of cover board 90.
In the electronic equipment 1000 of the application embodiment, photosensitive unit 41 can receive from the external world and enter through cover board 90
And the optical signal of light hole 711, the image for touching the object on display surface 91 can be obtained according to the optical signal, image can be used for
Fingerprint recognition, meanwhile, it can be by the distribution area of the multiple photosensitive units 41 of setting, so that multiple photosensitive units 41 according to demand
The area of distribution accounts for the large percentage of the area of display surface 91, and user can carry out fingerprint recognition over a substantial area, with reality
Existing region fingerprint recognition or full frame fingerprint recognition, better user experience.In addition, overleaf on 92 with veiling glare photosensitive unit 411
Corresponding position is provided with ink layer 93, and ink layer 93 obstructs the extraneous optical signal for passing through cover board 90, while ink layer 93 can be with
Cover board 90 is simulated to the reflex of the optical signal inside display device 100, so that veiling glare photosensitive unit 411 only receives display
Interference optical signal in device 100 simultaneously generates interference electric signal, can correct the image of object, by interference electric signal to obtain
The image of accurate object.
Specifically, display device 100 can be shown by the optical signal that the light-emitting component of therein issues to be shown
Showing device 100 can also be by the optical signal of guiding external light source sending to be shown, display device 100 can be not bendable
Folding, display device 100 is also possible to bent, and this is not restricted.
In the embodiment of the present application, please see Fig. 2 to Fig. 4, along the light direction of display device 100, display device 100
It successively include backlight layer 10, the first polarizing layer 20, first substrate 30, liquid crystal layer 50, the second substrate 60, photosensitive layer 40, collimation layer
70, the second polarizing layer 80 and cover board 90.
As shown in Figures 2 and 3, backlight layer 10 can be used for emitting optical signal La or backlight layer 10 and can be used for guiding
The optical signal La that light source (not shown) issues.Optical signal La sequentially pass through the first polarizing layer 20, first substrate 30, liquid crystal layer 50,
The second substrate 60, photosensitive layer 40, collimation layer 70, the second polarizing layer 80, cover board are after 90s into extraneous.Backlight layer 10 includes bottom surface
11, specifically, bottom surface 11 can be surface opposite with the first polarizing layer 20 in backlight layer 10.
First polarizing layer 20 is arranged in backlight layer 10, and the first polarizing layer 20 specifically can be polarizing film or polarizing coating.The
One substrate 30 is arranged on the first polarizing layer 20, and first substrate 30 can be glass substrate.
Please see Fig. 2 to Fig. 4, liquid crystal layer 50 is arranged on first substrate 30, and the liquid crystal molecule in liquid crystal layer 50 is in electric field
Under the action of can be changed deflection direction, and then change can pass through the amount of the optical signal of liquid crystal layer 50.Correspondingly, incorporated by reference to Fig. 5,
Display driving layer 1a, driving effect of the display driving layer 1a in driving chip (not shown) can also have been made on first substrate 30
Under can to liquid crystal layer 50 apply electric field, to control the deflection direction of the liquid crystal molecule of different location.Specifically, display driving layer
1a includes multiple display driver element 1a1, and multiple display driver element 1a1 can be in the array arrangement of multiple lines and multiple rows, Mei Gexian
Show that driving unit 1a1 can independently control the deflection direction of the liquid crystal of corresponding position.
Fig. 2, Fig. 4 and Fig. 6 are please referred to, the second substrate 60 is arranged on liquid crystal layer 50.The second substrate 60 may include glass
The multiple display units 61 and shading piece 62 of substrate and setting on the glass substrate.Display unit 61 can be colored filter,
For example, R indicates infrared fileter, G indicates that green color filter, B indicate blue color filter, by controlling the filter across different colours
The amount of the optical signal of mating plate, to control the color that display device 100 is finally shown.The arrangement mode of multiple display units 61 can be with
It is corresponding with the arrangement mode of multiple display driver element 1a1, such as a display unit 61 and one 1a1 pairs of display driver element
It is quasi-.
Shading piece 62 is between display unit 61, and shading piece 62 is spaced two adjacent display units 61, in an example
In son, shading piece 62 can be black matrix" (Black Matrix, BM).Shading piece 62 can prevent light from passing through, to avoid
Light in display device 100 enters the external world without display unit 61, and shading piece 62 can also prevent optical signal from passing through phase
Optical crosstalk phenomenon occurs when the display unit 61 of neighbour.
Fig. 3, Fig. 4 and Fig. 7 are please referred to, photosensitive layer 40 can be the film layer being produced in the second substrate 60, such as pass through TFT
(Thin Film Transistor) technique is produced in the second substrate 60.Photosensitive layer 40 includes multiple photosensitive units 41 and multiple
Circuit unit 42.
Photosensitive unit 41 can use photoelectric effect and convert electric signal for the optical signal received, by parsing photosensitive list
The intensity for the electric signal that member 41 generates can reflect the intensity for the optical signal that photosensitive unit 41 receives.In one example, feel
Light unit 41 can receive visible light signal only to be converted into electric signal, and in another example, photosensitive unit 41 can only connect
Receive black light to be converted into electric signal, in another example, photosensitive unit 41 can receive visible light and black light with
It is converted into electric signal.The type of multiple photosensitive units 41 can be identical, and the type of multiple photosensitive units 41 can also incomplete phase
Together.Multiple photosensitive units 41 can be arranged in an arbitrary manner, and the arrangement mode of multiple photosensitive units 41 specifically can be according to
The demands such as the shape according to display device 100 are set, and in the embodiment of the present application, multiple photosensitive units 41 are arranged in array,
Such as multiple photosensitive units 41 line up the matrix of multiple lines and multiple rows.As shown in figure 5, as shown being the display in display driving layer 1a
The positional relationship that photosensitive unit 41 in driving unit 1a1 and photosensitive layer 40 arranges, in same a line, display driver element 1a1
It is interspersed with photosensitive unit 41.It is appreciated that display driver element 1a1 and photosensitive unit 41 are located at display device 100 not
In same layer, i.e., the two is different in the position of the thickness direction of display device 100.Each photosensitive unit 41 can work independently
Without being influenced by other photosensitive units 41, the intensity for the optical signal that the photosensitive unit 41 of different location receives may be different,
Therefore the intensity of the electric signal of the photosensitive unit 41 of different location generation may also be different.
In addition, photosensitive unit 41 can be directed at setting with shading piece 62, shading piece 62 can be with stop portions from backlight layer 10
It is irradiated to the optical signal of photosensitive unit 41, to reduce interference of the optical signal inside display device 100 to imaging.In the application reality
It applies in example, photosensitive unit 41 is located in shading piece 62 in the orthographic projection in the second substrate 60, that is, in the light of vertical the second substrate 60
Under the irradiation of line, photosensitive unit 41 is located in shading piece 62 in the projection in the second substrate 60 so that shading piece 62 block from
The effect that backlight layer 10 is irradiated to the optical signal of photosensitive unit 41 is preferable.
In use, it is directly pierced by from display surface 91 from the signal portions issued in backlight layer 10, it partially can be aobvious
Show and carries out one or many reflections between face 91 and backlight layer 10, and part reflected optical signal may reach photosensitive unit
41 and the imaging of display device 100 is interfered.That is, further include interference optical signal in the imaging optical signal for imaging,
Interference optical signals display device 100 reflects and reaches the photosensitive unit 41 on photosensitive layer 40.Therefore, it when being imaged, needs
The interference electric signal is individually obtained, and image is corrected according to imaging electric signal.In the application embodiment, photosensitive list
Member 41 includes veiling glare photosensitive unit 411.The type and performance of veiling glare photosensitive unit 411 and remaining photosensitive unit 41 are all the same.
Circuit unit 42 can be connect with photosensitive unit 41.The electric signal that circuit unit 42 can generate photosensitive unit 41
It is transmitted to the imager chip 300 of electronic equipment 1000.Circuit unit 42 can specifically include the elements such as transistor.Circuit unit 42
Quantity can be to be multiple, each photosensitive unit 41 can connect on a corresponding circuit unit 42, multiple circuit units
42 are connect by connecting line with imager chip 300.The arrangement mode of multiple circuit units 42 can be with the arrangement of photosensitive unit 41
Mode is similar, such as multiple photosensitive units 41 are arranged in the matrix of multiple lines and multiple rows, and multiple circuit units 42 can also be arranged in more
The matrix of row multiple row.
Please see Fig. 2 to Fig. 4, collimation layer 70 is arranged on photosensitive layer 40.Collimating layer 70 includes multiple collimation units 71, quasi-
Straight unit 71 offers light hole 711, and light hole 711 is directed at photosensitive unit 41.Optical signal reaches photosensitive after light hole 711
Unit 41.The material of collimation unit 71 can be identical as the material of shading piece 62, for example, collimation unit 71 and shading piece 62 by
Light absorbent is made, and when optical signal reaches the entity part of collimation unit 71, optical signal can be partially absorbed or all absorb, example
Such as, when the lateral wall of optical signal arrival collimation unit 71 or optical signal reach the inner wall of light hole 711, optical signal is collimated
Unit 71 absorb so that the optical signal that the direction of propagation is overlapped with the extending direction of the center line of light hole 711 be obtained through it is logical
Unthreaded hole 711 realizes that the collimation to optical signal, the interference optical signal that photosensitive unit 41 receives are less.Multiple collimation units 71 exist
Orthographic projection in the second substrate 60 can be located in shading piece 62, so that collimation unit 71 2 will not block display unit 61,
Guarantee that display device 100 has preferable display effect.
The extending direction of light hole 711 can be perpendicular to display surface 91, so that light hole 711 is only capable of passing through the direction of propagation
The optical signal vertical with display surface 91, in other words, light hole 711 are only capable of believing by the light propagated vertically downward from display surface 91
Number.The ratio of the depth of the cross-sectional width and light hole 711 of light hole 711 is less than 0.2, wherein the depth of light hole 711 can be with
It is depth of the light hole 711 along centerline direction, the cross-sectional width of light hole 711 can be light hole 711 by perpendicular to center
For the maximum for the figure that the plane of line is cut across size, ratio specifically can be the number such as 0.1,0.111,0.125,0.19,0.2
Value, so that collimation unit 71 is preferable to the collimating effect of optical signal.Further, each light hole 711 may include multiple
Sub- light hole (not shown), multiple sub- light holes are apart from one another by including multiple sub- light holes in a light hole 711 and together
One photosensitive unit 41 is aligned.That is, include multiple sub- light holes in a light hole 711 can be used for it is photosensitive to reaching one
The optical signal of unit 41 is collimated.At this point it is possible to which the ratio of the cross-sectional width of sub- light hole and the depth of sub- light hole is arranged
Less than 0.2, so that the collimating effect of collimation 70 pairs of optical signal of layer is preferable.Due to dividing light hole 711 for the son at multiple intervals
Light hole, under the premise of guaranteeing collimating effect, that is, before the ratio of the cross-sectional width and depth that guarantee light passing space is less than 0.2
It puts, the thickness of collimation layer 70 can be set smaller, to reduce the integral thickness of display device 100.
In one example, collimation layer 70 further includes matrix 72, and matrix 72 can be basic light transmission, 71 shape of collimation unit
At on matrix 72.In another example, collimation layer 70 can only include collimation unit 71, and collimation unit 71 can pass through plating
The modes such as film, sputtering, etching are formed in the second substrate 60.
For the setting of second polarizing layer 80 on collimation layer 70, the second polarizing layer 80 specifically can be polarizing film or polarizing coating.
Fig. 2, Fig. 3 and Fig. 8 are please referred to, cover board 90 is arranged on the second polarizing layer 80.Cover board 90 can be by glass, sapphire
Equal materials are made.Cover board 90 includes display surface 91 and the back side 92.It is laggard that the optical signal that display device 100 issues passes through display surface 91
Enter the external world, extraneous light enters display device 100 after passing through display surface 91.The back side 92 can be bonded with the second polarizing layer 80.
Display surface 91 is formed with viewing area 911, and viewing area 911 refers to the region for being displayed for image, and viewing area 911 can
To be in the shapes such as the rectangle of rectangle, circle, round rectangle, band " fringe ", this is not restricted.In addition, in some instances, showing
Show that face 91 also could be formed with non-display area, non-display area can be formed in the outer fringe position of viewing area 911, and non-display area can be with
For being attached with casing 200.The accounting of viewing area 911 can be the arbitrary numbers such as 80%, 90%, 100% on display surface 91
Value.
Position corresponding with veiling glare photosensitive unit 411 is provided with ink layer 93, the light in display device 100 on the back side 92
It is largely absorbed by ink layer 93 after reaching the ink layer 93, fraction (such as 4%) is reflected by ink layer 93, passes through the ink
Layer 93 can simulate cover board 90 to the reflex of the optical signal inside display device 100.Therefore, veiling glare photosensitive unit 411 can
To receive the interference optical signal same with remaining photosensitive unit 41, and simultaneously, ink layer 93 can obstruct (reflection or absorb) from
The external world penetrates the optical signal of cover board 90, so that veiling glare photosensitive unit 411 only receives interference optical signal, remaining photosensitive unit 41
Interference optical signal can be then received simultaneously, and the optical signal of cover board 90 is penetrated from the external world.
In addition, overleaf 92 position by proximal edge is arranged in ink layer 93, veiling glare photosensitive unit 411 is located at photosensitive layer 40
Marginal position.Such as veiling glare photosensitive unit 411 is set, wherein the region a is located at the photosensitive of Fig. 7 in the region a as shown in Figure 7
On one column of the leftmost side of 41 array of unit and a column of the rightmost side.Avoid ink layer 93 to the display effect of display device 100
Cause too much influence.Specifically, photosensitive unit 41 can arrange in the matrix of multiple lines and multiple rows, and veiling glare photosensitive unit 411 can be with
The marginal position of the matrix is set, such as close to a column to three column for matrix edge, a line close to matrix edge to three rows,
To adapt to the position of ink layer 93.
In the embodiment of the present application, multiple photosensitive units 41 are located in viewing area 911 in the orthographic projection of display surface 91.So that
Multiple photosensitive units 41 can be imaged the object touched in viewing area 911, touch display using finger for user
For the example in area 911, multiple photosensitive units 41 can be imaged the fingerprint for touching the finger on viewing area 911, and
For fingerprint recognition.
Please refer to figs. 2 and 3, will be described by way the detail that display device 100 is imaged: display device below
The 100 optical signal La issued sequentially pass through the first polarizing layer 20, first substrate 30, liquid crystal layer 50, the second substrate 60, photosensitive layer
40, collimate layer 70, the second polarizing layer 80 and cover board it is after 90s enter it is extraneous, extraneous optical signal may also sequentially pass through cover board 90,
Photosensitive layer 40 is reached after second polarizing layer 80, collimation layer 70.If optical signal reaches exactly to the photosensitive unit 41 in photosensitive layer 40
On, then photosensitive unit 41 can generate electric signal to reflect the intensity of the optical signal.Pass through the telecommunications of multiple photosensitive units 41 as a result,
Number intensity, can reflect the strength distribution of the optical signal into display device 100.
By user by taking finger 2000 touches display surface 91 as an example.When display device 100 is sending out optical signal La, hand
Refer to 2000 predetermined positions for touching display surface 91, finger 2000 can carry out optical signal La to reflect to form L1, and optical signal L1 is subsequent
Display device 100 is initially entered, optical signal L1 initially passes through the position for being not provided with ink layer 93 and the second polarizing layer of cover board 90
80, optical signal L1 identical with the extending direction of light hole 711 for the direction of propagation, optical signal L1 can also pass through light hole 711,
Optical signal L1 reaches photosensitive unit 41 after passing through light hole 711.It is not identical as the extending direction of light hole 711 for the direction of propagation
Optical signal, optical signal pass through cover board 90 and the second polarizing layer it is after 80s, optical signal can not be by light hole 711, and then can not arrive
Up to the photosensitive unit 41 being aligned with light hole 711.
It is appreciated that there are wave crests and trough for finger print, and when finger 2000 touches display surface 91, wave crest and display surface 91
Directly contacting, there are gaps between trough and display surface 91, after optical signal La reaches wave crest and trough, the optical signal of peak reflection
The intensity for the optical signal (calling the second optical signal in the following text) that the intensity of (calling the first optical signal in the following text) is reflected with trough has differences, and then makes
The electric signal (calling the first electric signal in the following text) generated due to receiving the first optical signal is obtained to generate with due to receiving the second optical signal
The intensity of electric signal (calling the second electric signal in the following text) have differences, imager chip 300 is according to the first electric signal and the second electric signal
Distribution situation, the image of available fingerprint.
In addition, the signal portions in display device 100 are reflected by ink layer 93 incorporated by reference to Fig. 9, interference optical signal is formed
L2, interference optical signal L2 are received after may pass through light hole 711 by veiling glare photosensitive unit 411.Simultaneously as ink layer 93 can also
The optical signal Lb that more external worlds penetrate cover board 90 is enough obstructed, therefore, veiling glare photosensitive unit 411 only receives interference optical signal.It is miscellaneous
Light sensation light unit 411 exists the interference electric signal transmission generated by interference optical signal L2 to imager chip 300, imager chip 300
Image will be corrected according to the interference electric signal when imaging, for example, will be imaged optical signal generate imaging electric signal subtract it is dry
It disturbs and improves the accurate of image recognition as the electric signal eventually for imaging to obtain the higher image of accuracy after electric signal
Rate.
In one example, veiling glare photosensitive unit 411 and remaining photosensitive unit 41 are ccd image sensor, at this point, at
As electric signal and interfere subtracting each other for electric signal that can carry out in imager chip 300, i.e., imaging electric signal, interference electric signal pass
It send into imager chip 300, electric signal will be imaged by, which being executed by imager chip 300, subtracts the operation of interference electric signal, alternatively, being imaged
Electric signal can also be carried out with subtracting each other for electric signal of interference in analog-digital converter, i.e. imaging electric signal and interference electric signal is first equal
It is sent in analog-digital converter, electric signal will be imaged by, which being executed by analog-digital converter, subtracts the operation of interference electric signal, then will subtract each other
The electric signal obtained afterwards is sent in imager chip 300.In another example, veiling glare photosensitive unit 411 and remaining photosensitive list
Member 41 is cmos image sensor, at this point, imaging electric signal and interfere electric signal subtract each other can in imager chip 300 into
Row, i.e. imaging electric signal and interference electric signal are sent in imager chip 300, and telecommunications will be imaged by the execution of imager chip 300
The operation of interference electric signal number is subtracted, alternatively, imaging electric signal and subtracting each other for electric signal of interference can also be in photosensitive units 41
It carries out, the first memory block, the second memory block and the powered down road of logic is added in photosensitive unit 41, the imaging electricity that photosensitive unit 41 generates
Signal is stored in the first memory block, and interference electric signal is sent to photosensitive unit 41 by veiling glare photosensitive unit 411 and is stored in the
In two memory blocks, after the operation that electric signal subtracts interference electric signal will be imaged in the powered down road execution of logic, then obtained after subtracting each other
Electric signal is sent in imager chip 300.It is above-mentioned merely illustrative for imaging electric signal and the description of interference electric signal subtracted each other,
It should not be understood as the limitation to the application.
Further, since veiling glare photosensitive unit 411 has multiple, multiple interference electric signals, Duo Gegan can correspondingly be generated
Disturb electric signal size may it is inconsistent, then, will be imaged electric signal subtract interfere electric signal when, in one example, can
To be averaged to multiple interference electric signals, then will be imaged electric signal subtract be averaged after obtained interference electric signal.At another
In example, subregion can be carried out respectively to photosensitive unit 41 and veiling glare photosensitive unit 411, each region includes that at least one is photosensitive
Unit 41 or including at least one veiling glare photosensitive unit 411.It then, can be according to each region comprising photosensitive unit 41
The position in the position of (calling first area in the following text) and each region (calling second area in the following text) comprising veiling glare photosensitive unit 411 is come true
Fixed and each first area is at a distance of nearest second area.It, can be with for each of each first area photosensitive unit 41
The imaging electric signal that each photosensitive unit 41 generates is subtracted into the veiling glare with the first area in nearest second area
The interference electric signal that photosensitive unit 411 generates, to obtain each photosensitive unit 41 eventually for the electric signal of imaging, if the
The number of veiling glare photosensitive unit 411 is multiple in two regions, then can be first to multiple veiling glare photosensitive units in the second area
The 411 multiple interference electric signals generated take mean value, then imaging electric signal is subtracted the mean value and obtains the telecommunications eventually for imaging
Number.It is appreciated that veiling glare photosensitive unit 411 is closer apart with photosensitive unit 41, veiling glare photosensitive unit 411 connects with photosensitive unit 41
Receive interference optical signal amount it is also more close, the interference electric signal of generation is also more close, will be imaged electric signal subtract it is dry
It is also more accurate to disturb the electric signal for imaging finally obtained after electric signal.
It is appreciated that user touches in the overlying regions for being arbitrarily provided with photosensitive unit 41, can reach to finger
The purpose that line is imaged and is identified.When 911 lower section of viewing area is correspondingly arranged on photosensitive unit 41, user is in viewing area
911 any position is touched, and can achieve the purpose that fingerprint is imaged and is identified, and is not limited to viewing area 911
Certain specific positions.Meanwhile user can also touch multiple positions on viewing area 911, Huo Zheduo simultaneously with multiple fingers
The multiple fingers of a user touch multiple positions on viewing area 911 simultaneously, and multiple fingerprints are imaged and are identified to realize
Purpose, in this way, the verification mode and applicable scene of electronic equipment 1000 can be enriched, for example, only when multiple fingerprints simultaneously
By just being authorized after verifying, multiple users can carry out the operation such as game on the same electronic equipment 1000.
Certainly, with user with finger touch display surface 91 when similarly, it is any be capable of reflecting light signal La object (such as with
Arm, forehead, clothing, the flowers and plants at family etc.) touch display surface 91 after the surface texture of the object can be imaged, to imaging
The subsequent processing of progress can be set according to user demand, and this is not restricted.
Incorporated by reference to Figure 10, the application embodiment also discloses a kind of image acquiring method, and image acquiring method can be applied
In above-mentioned display device 100, image acquiring method comprising steps of
01: receiving the imaging optical signal including target optical signal；
02: obtaining interference electric signal according to the received optical signal of veiling glare photosensitive unit；And
03: obtaining image according to imaging optical signal and interference electric signal.
Wherein, step 01 can be realized by photosensitive layer 40, and step 02 and step 03 can be realized by imager chip 300.At
As optical signal refers to the received all optical signals of photosensitive unit 41, target optical signal refers to be arrived after display surface 91 and light hole 711
Up to the optical signal of photosensitive unit 41.The specific implementation details of step 01,02 and 03 are referred to above to display device 100
Associated description, details are not described herein.
To sum up, in the electronic equipment 1000 of the application embodiment, photosensitive unit 41 can receive and enter through from the external world
The optical signal of cover board 90 and light hole 711 can obtain the image for touching the object on display surface 91, image according to the optical signal
It can be used for fingerprint recognition, meanwhile, it can be by the distribution area of the multiple photosensitive units 41 of setting, so that multiple photosensitive according to demand
The area that unit 41 is distributed accounts for the large percentage of the area of display surface 91, and user can carry out fingerprint knowledge over a substantial area
Not, to realize region fingerprint recognition or full frame fingerprint recognition, better user experience.In addition, overleaf photosensitive with veiling glare on 92
The corresponding position of unit 411 is provided with ink layer 93, and ink layer 93 obstructs the extraneous optical signal for passing through cover board 90, while ink layer
93 can simulate cover board 90 to the reflex of the optical signal inside display device 100, so that veiling glare photosensitive unit 411 only receives
To the interference optical signal in display device 100 and interference electric signal is generated, the image of object can be corrected by interference electric signal,
To obtain the image of accurate object.
Fig. 7, Figure 11 and Figure 12 are please referred to, in some embodiments, photosensitive unit 41 includes noise photosensitive unit 412,
Display device 100 further includes lightproof unit 73, and lightproof unit 73 is arranged on collimation unit 71, lightproof unit 73 for block with
The light hole 711 that noise photosensitive unit 412 is aligned.
In use, the temperature of photosensitive unit 41 or the temperature of environment can change, and as temperature changes,
The performance of photosensitive unit 41 may change, for example, photosensitive unit 41 can be made of amorphous silicon (A-Si) material, in temperature
When degree variation, the bottom that photosensitive unit 41 generates makes an uproar and can also change, and the electric signal generated due to temperature change is properly termed as
Noise electric signal, and the object and onrelevant of the noise electric signal and actual needs imaging.Therefore, it when being imaged, needs
It interferes and is corrected caused by temperature change.
In present embodiment, the type and performance of noise photosensitive unit 412 and remaining photosensitive unit 41 are all the same, shading list
Member 73 blocks light hole 711, so that noise photosensitive unit 412 does not almost receive optical signal.Noise photosensitive unit 412 is using
Electric signal can be generated in the process, but since noise photosensitive unit 412 does not almost receive optical signal, noise photosensitive unit
412 electric signals generated can be considered the noise electric signal generated by material and temperature change.At this point, remaining photosensitive unit 41
(outside removal of impurities light sensation light unit 411) can then generate noise electric signal simultaneously, and receive imaging optical signal to generate imaging electricity
Signal.For noise photosensitive unit 412 by noise electric signal transmission to imager chip 300, imager chip 300 will be according to dry in imaging
It disturbs electric signal and the noise electric signal is corrected image, such as subtract interference for the imaging electric signal that optical signal generates is imaged
Image is improved to obtain the higher image of accuracy as the electric signal eventually for imaging after electric signal and noise electric signal
The accuracy rate of identification.With imaging electric signal subtract interference electric signal the case where it is similar, imaging electric signal subtract interference electric signal and
The operation of noise electric signal can also be executed in remaining device, no longer be gone to live in the household of one's in-laws on getting married herein in addition to that can execute in imager chip 300
It states.
Specifically, lightproof unit 73 can also be made of light absorbent, and lightproof unit 73 can be filled in light hole 711
Interior, lightproof unit 73 can be fabricated together with collimation unit 71.Noise photosensitive unit 412 can be set in photosensitive unit 41
The region by proximal edge of array, noise photosensitive unit 412 also can be set in the region adjacent with veiling glare photosensitive unit 411,
Such as can be located in matrix one arranges to three column, or a line in matrix, to three rows, this is not restricted, Fig. 7 institute
Noise photosensitive unit 412 is set in the region b shown, wherein the region b is located at the secondary series from left to right of 41 array of photosensitive unit of Fig. 7
And from right to left on secondary series.
Further, since noise photosensitive unit 412 has multiple, multiple noise electric signals can be correspondingly generated, it is multiple to make an uproar
The size of acoustoelectric signal may be inconsistent, then, will be imaged electric signal subtract interfere electric signal and noise electric signal when, one
In a example, multiple noise electric signals can be averaged, then imaging electric signal is subtracted into interference electric signal and is obtained after being averaged
The noise electric signal arrived.In another example, subregion can be carried out respectively to photosensitive unit 41 and noise photosensitive unit 412,
Each region includes at least one photosensitive unit 41 or including at least one noise photosensitive unit 412.It then, can be according to every
The position in a region (calling first area in the following text) comprising photosensitive unit 41 and each region comprising noise photosensitive unit 412
The position of (calling third region in the following text) is determined with each first area at a distance of nearest third region.For in each first area
Each photosensitive unit 41, the imaging electric signal that each photosensitive unit 41 can be generated subtract interference electric signal and, with
The noise electric signal that noise photosensitive unit 412 of the first area in nearest third region generates, to obtain each
Photosensitive unit 41 eventually for imaging electric signal, if in third region noise photosensitive unit 412 number be it is multiple, can
Mean value is taken with the multiple noise electric signals first generated to multiple noise photosensitive units 412 in the third region, then will imaging electricity
Signal subtracts interference electric signal and the mean value obtains the electric signal eventually for imaging.It is appreciated that noise photosensitive unit 412 with
Photosensitive unit 41 is closer apart, and noise photosensitive unit 412 is also more close with the temperature of photosensitive unit 41, the noise electric signal of generation
Also the telecommunications for being used to be imaged that is more close, finally being obtained after electric signal will be imaged and subtract interference electric signal and noise electric signal
It is number also more accurate.
Figure 12 is please referred to, in some embodiments, image acquiring method further includes step 04: obtaining noise photosensitive unit
The 412 noise electric signals generated；Step 03 includes step 031: being obtained according to imaging optical signal, interference electric signal and noise electric signal
Take image.
Wherein, step 04 can be realized by noise photosensitive unit 412, and step 031 can be realized by imager chip 300.It is real
The detail for applying step 04 and step 031 can be with reference to above description, and details are not described herein.
Referring to Fig. 7, in some embodiments, circuit unit 42 includes photosensitive circuit unit 421 and Noise Circuits list
Member 422, photosensitive circuit unit 421 is connect with photosensitive unit 41, and photosensitive unit 41 is not connected on Noise Circuits unit 422.
There are hardware noise, hardware noise meeting generation circuit noise signal, circuit noise signals for circuit unit 42 itself
It will affect the intensity for being finally transferred to the electric signal of imager chip 300, therefore, when being imaged, need to believe circuit noise
Interference caused by number is corrected.
In present embodiment, it is not connected with photosensitive unit 41 on Noise Circuits unit 422, is generated on Noise Circuits unit 422
Circuit noise signal be hardware noise for Noise Circuits unit 422 itself.Noise Circuits unit 422 makes an uproar the circuit
Acoustical signal is transmitted to imager chip 300, and imager chip 300 will be according to interference electric signal and the circuit noise signal pair in imaging
Image is corrected, such as will be imaged after the imaging electric signal that optical signal generates subtracts interference electric signal and circuit noise signal and made
The accuracy rate of image recognition is improved for the electric signal eventually for imaging to obtain the higher image of accuracy.
Specifically, multiple circuit units 42 can be in the array arrangement of multiple lines and multiple rows, and Noise Circuits unit 422 at least arranges
At complete a line and a complete column, so that Noise Circuits unit 422 is distributed in any a line and any one column, make an uproar
More comprehensively, foundation interferes electric signal and the circuit noise signal pair to the sample for the circuit noise signal that sound circuit unit 422 generates
When image is corrected, the effect of correction is more preferable.Noise Circuits unit 422, which also can be set, to be lined up in multiple circuit units 42
The marginal position of array, or be arranged close to above-mentioned veiling glare photosensitive unit 411 and noise photosensitive unit 412.Noise Circuits list
The distribution of member 422 can cover complete one and arrange to five column, and the complete a line of covering, to the five-element, this is not restricted.
In example as shown in Figure 7, Noise Circuits unit 422 is set, wherein the region c is located at the electricity of Fig. 7 in the region c of photosensitive layer 40
In the column of third from left to right of 42 array of road unit, from right to left third column, a line of top side and a line of lower side.
Further, since Noise Circuits unit 422 has multiple, multiple circuit noise signals can be correspondingly generated, it is multiple
The size of circuit noise signal may be inconsistent, then, interference electric signal and circuit noise signal are subtracted electric signal will be imaged
When, in one example, multiple circuit noise signals can be averaged, then imaging electric signal is subtracted into interference electric signal and is taken
The circuit noise signal obtained after average.In another example, photosensitive unit 41 and Noise Circuits unit 422 can be distinguished
Subregion is carried out, each region includes at least one photosensitive unit 41 or including at least one Noise Circuits unit 422.Then,
It can be according to the position in each region (calling first area in the following text) comprising photosensitive unit 41 and each comprising Noise Circuits unit
The position in 422 region (calling the fourth region in the following text) is determined with each first area at a distance of nearest the fourth region.For each
Each of first area photosensitive unit 41, the imaging electric signal that each photosensitive unit 41 can be generated subtract interference electricity
Signal and the circuit noise signal generated with Noise Circuits unit 422 of the first area in nearest the fourth region are to obtain
To each photosensitive unit 41 eventually for the electric signal of imaging, if the number of Noise Circuits unit 422 is in the fourth region
Multiple, then the multiple circuit noise signals that can first generate to multiple Noise Circuits units 422 in the fourth region take mean value,
Imaging electric signal is subtracted into interference electric signal again and the mean value obtains the electric signal eventually for imaging.
Incorporated by reference to Figure 13, in some embodiments, image acquiring method further includes step 05: obtaining the electricity of photosensitive layer 40
Road noise acoustical signal；Step 03 includes step 032: according to imaging optical signal, interference electric signal and circuit noise signal acquisition image.
Wherein, step 05 can be realized by Noise Circuits unit 422, and step 032 can be realized by imager chip 300.It is real
The detail for applying step 05 and step 032 can be with reference to above description, and details are not described herein.
Referring to Fig. 7, in some embodiments, photosensitive unit 41 further includes multiple infrared photosensitive units 413, infrared sense
Light unit 413 is for detecting infrared light.
Since there are infrared lights in external environment, and infrared light may penetrate certain objects and enter display device 100.Example
Such as, infrared light may penetrate the finger of user, be received across display surface 91 and light hole 711 and by photosensitive unit 41, and
The part infrared light and the fingerprint of user be not relevant, the infrared electric signal meeting which generates
It is interfered when imager chip 300 is imaged.Therefore, when being imaged, the interference caused by infrared signal is needed
It is corrected.
Infrared photosensitive unit 413 can only receive infrared signal, and generate infrared electric signal according to infrared signal, remaining
Photosensitive unit 41 (removing denoising photosensitive unit 412) can receive infrared signal and visible light signal simultaneously, and according to infrared light
Signal and visible light signal generate imaging electric signal.Infrared electric signal is further transmitted to imager chip 300, imager chip 300
Imaging when will according to interference electric signal and the infrared electric signal image will be corrected, such as by be imaged optical signal generate at
As electric signal subtract interference electric signal and infrared electric signal after as the electric signal eventually for imaging, it is higher to obtain accuracy
Image, improve the accuracy rate of image recognition.The case where subtracting interference electric signal with imaging electric signal is similar, and imaging electric signal subtracts
Go the operation of interference electric signal and infrared electric signal in addition to that can execute in imager chip 300, it can also be in remaining device
It executes, details are not described herein.
Specifically, multiple infrared photosensitive units 413 can be spaced apart, such as be evenly distributed on 41 array of photosensitive unit
Interior, infrared photosensitive unit 413 ratio shared in photosensitive unit 41 can be smaller, such as accounts for 1%, 7%, 10% etc..It please tie
Fig. 3 is closed, is also provided with touch control layer (not shown) in display device 100, when user touches display surface 91, touch control layer can be with
Sense the position touched, imager chip 300 reads the infrared photosensitive unit of one or more corresponding with the position touched
The 413 infrared electric signals generated, and image is corrected according to the interference electric signal and infrared electric signal.
Incorporated by reference to Figure 14, in some embodiments, image acquiring method further includes step 06: obtaining infrared signal；
Step 03 includes step 033: obtaining image according to imaging optical signal, interference electric signal and infrared signal.
Wherein, step 06 can be realized that step 033 can be realized by imager chip 300 by infrared photosensitive unit 413.It is real
The detail for applying step 06 and step 033 can be with reference to above description, and details are not described herein.
In addition, in some embodiments, infrared photosensitive unit 413 can also be not provided with, but in photosensitive layer 40 and shown
Show and infrared cut coating is set between face 91, such as infrared cut coating setting in photosensitive layer 40 and collimates between layer 70, infrared cutoff
Film is higher to the transmitance of visible light, can achieve 90% or more, and lower to the transmitance of infrared signal, outer to prevent
The infrared signal on boundary reaches photosensitive unit 41.
Further, since infrared photosensitive unit 413 has multiple, multiple infrared electric signals, Duo Gehong can correspondingly be generated
The size of outer electric signal may be inconsistent, then, will be imaged electric signal subtract interfere electric signal and infrared electric signal when, one
In a example, multiple infrared electric signals can be averaged, then imaging electric signal is subtracted into interference electric signal and is obtained after being averaged
The infrared electric signal arrived.In another example, subregion can be carried out respectively to photosensitive unit 41 and infrared photosensitive unit 413,
Each region includes at least one photosensitive unit 41 or including at least one infrared photosensitive unit 413.It then, can be according to every
The position in a region (calling first area in the following text) comprising photosensitive unit 41 and each include infrared photosensitive unit 413 region
The position of (calling the 5th region in the following text) is determined with each first area at a distance of the 5th nearest region.For in each first area
Each photosensitive unit 41, the imaging electric signal that each photosensitive unit 41 can be generated subtracts interference electric signal, and with
The infrared electric signal that infrared photosensitive unit 413 of the first area in the 5th nearest region generates is to obtain each sense
Light unit 41 eventually for imaging electric signal, if in the 5th region the number of infrared photosensitive unit 413 be it is multiple, can be with
The multiple infrared electric signals first generated to multiple infrared photosensitive units 413 in the 5th region take mean value, then telecommunications will be imaged
It number subtracts interference electric signal and the mean value obtains the electric signal eventually for imaging.It is appreciated that infrared photosensitive unit 413 and sense
Light unit 41 is closer apart, and infrared photosensitive unit 413 is also more close with the amount for the infrared light of photosensitive unit 41 received, and generates
Infrared electric signal it is also more close, the use that finally obtains after electric signal will be imaged and subtract interference electric signal and infrared electric signal
It is also more accurate in the electric signal of imaging.
Referring to Fig. 7, veiling glare photosensitive unit 411, noise photosensitive unit can also be arranged on the same photosensitive layer 40 simultaneously
412, any one or more in Noise Circuits unit 422 and infrared photosensitive unit 413.For example, it is photosensitive that veiling glare is arranged simultaneously
Unit 411 and noise photosensitive unit 412, imager chip 300 will be according to interference electric signal and noise electric signal in imaging at this time
Image is corrected, such as will be imaged after the imaging electric signal that optical signal generates subtracts interference electric signal and noise electric signal and make
For the electric signal eventually for imaging.For another example veiling glare photosensitive unit 411 and Noise Circuits unit 422 are arranged simultaneously, at this time at
As chip 300 will be corrected image according to interference electric signal and circuit noise signal in imaging, such as imaging is believed
Number imaging electric signal generated subtracts interfere electric signal and circuit noise signal after as the electric signal eventually for imaging.Example again
Such as, while Noise Circuits unit 422 and infrared photosensitive unit 413 are set, imager chip 300 will be according to circuit in imaging at this time
Noise signal and infrared signal are corrected image, such as the imaging electric signal that optical signal generates will be imaged and subtract circuit and make an uproar
As the electric signal eventually for imaging after acoustical signal and infrared electric signal.For another example be arranged simultaneously noise photosensitive unit 412,
Noise Circuits unit 422 and infrared photosensitive unit 413, imager chip 300 will be according to noise electric signal, circuit in imaging at this time
Noise signal and infrared signal are corrected image, such as the imaging electric signal that optical signal generates will be imaged and subtract noise electricity
As the electric signal eventually for imaging after signal, circuit noise signal and infrared electric signal.For another example veiling glare sense is arranged simultaneously
Light unit 411, noise photosensitive unit 412 and infrared photosensitive unit 413, imager chip 300 will be according to interference in imaging at this time
Electric signal, noise electric signal, circuit noise signal and infrared signal are corrected image, such as imaging optical signal is generated
Imaging electric signal subtract after interference electric signal, noise electric signal, circuit noise signal and infrared electric signal as eventually for
Electric signal of imaging etc..
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " means in conjunction with the embodiment
Or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the application.
In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, description
Particular features, structures, materials, or characteristics can be in any one or more embodiments or example with suitable side
Formula combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one described feature.In the description of the present application, the meaning of " plurality " is at least two, such as two,
Three, unless otherwise specifically defined.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, and scope of the present application is defined by the claims and their equivalents.
Claims (10)
1. a kind of display device, which is characterized in that the display device includes:
Liquid crystal layer；
Photosensitive layer, the photosensitive layer include multiple photosensitive units, and the photosensitive unit includes veiling glare photosensitive unit；
Layer is collimated, the collimation layer and the liquid crystal layer are located at the opposite two sides of the photosensitive layer, and the collimation layer includes more
A collimation unit, the collimation unit offer light hole, and the light hole is directed at the photosensitive unit, and the light hole can
Optical signal is allowed to pass through to the photosensitive unit；And
Cover board, the cover board and the photosensitive layer are located at the opposite two sides of the collimation layer, and the cover board includes opposite shows
Show face and the back side, ink layer is provided on the back side, the ink layer is corresponding with the position of the veiling glare photosensitive unit, described
Ink layer is used to obstruct the optical signal for penetrating the cover board from the external world.
2. display device according to claim 1, which is characterized in that the display device further includes first substrate and second
Substrate, the first substrate, the liquid crystal layer and the second substrate stack gradually setting, and the photosensitive layer setting is described the
On two substrates, multiple display units and the shading piece between multiple display units are provided in the second substrate,
The photosensitive unit is directed at setting with the shading piece.
3. display device according to claim 1, which is characterized in that the ink layer be arranged in the back side by near side (ns)
The position of edge, the veiling glare photosensitive unit are located at the marginal position of the photosensitive layer.
4. display device according to claim 3, which is characterized in that the positive throwing of the photosensitive unit on the second substrate
Shadow is located in the shading piece.
5. display device according to any one of claims 1 to 4, which is characterized in that the display surface is formed with display
Area, multiple photosensitive units are located in the viewing area in the orthographic projection of the display surface.
6. display device according to any one of claims 1 to 4, which is characterized in that the collimation unit is by extinction material
Material is made, and the light hole extends perpendicularly to the display surface.
7. display device according to any one of claims 1 to 4, which is characterized in that the cross-sectional width of the light hole
Ratio with the depth of the light hole is less than 0.2.
8. display device according to any one of claims 1 to 4, which is characterized in that each light hole includes more
A spaced sub- light hole, including in a light hole multiple sub- light holes with it is same described photosensitive
Unit alignment.
9. a kind of electronic equipment characterized by comprising
Casing；And
Display device described in claim 1 to 8 any one, the display device installation is on the housing.
10. a kind of image acquiring method, which is characterized in that described image acquisition methods are used for display device, the display device
Including liquid crystal layer, photosensitive layer, collimation layer and cover board；The photosensitive layer includes multiple photosensitive units, and the photosensitive unit includes miscellaneous
Light sensation light unit；The collimation layer and the liquid crystal layer are located at the opposite two sides of the photosensitive layer, and the collimation layer includes more
A collimation unit, the collimation unit offer light hole, and the light hole is directed at the photosensitive unit, and the light hole can
Optical signal is allowed to pass through to the photosensitive unit；The cover board and the photosensitive layer are located at opposite two of the collimation layer
Side, the cover board include opposite display surface and the back side, and ink layer, the ink layer and the veiling glare are provided on the back side
The position of photosensitive unit is corresponding, and the ink layer is used to obstruct the optical signal for penetrating the cover board from the external world；Described image obtains
Method includes:
The imaging optical signal including target optical signal is received, the target optical signal successively passes through the display surface and the light passing
Kong Hou reaches the photosensitive unit；
Interference electric signal is obtained according to the received optical signal of the veiling glare photosensitive unit；And
Image is obtained according to the imaging optical signal and the interference electric signal.
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