CN110263727A - Display device, electronic equipment and image acquiring method - Google Patents
Display device, electronic equipment and image acquiring method Download PDFInfo
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- CN110263727A CN110263727A CN201910548449.4A CN201910548449A CN110263727A CN 110263727 A CN110263727 A CN 110263727A CN 201910548449 A CN201910548449 A CN 201910548449A CN 110263727 A CN110263727 A CN 110263727A
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- photosensitive
- display device
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- photosensitive unit
- display
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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
-
- 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
Abstract
This application discloses a kind of display devices.Display device includes opposite display surface and bottom surface, and between display surface and bottom surface, display device further includes the first substrate being stacked, photosensitive layer, liquid crystal layer and the second substrate；Photosensitive layer is arranged on the first substrate, and photosensitive layer includes multiple photosensitive units；Liquid crystal layer is arranged on photosensitive layer；The second substrate is arranged on liquid crystal layer, and shading piece is provided in the second substrate, and multiple unthreaded holes excessively are offered on shading piece, and each unthreaded hole of crossing is aligned with a corresponding photosensitive unit, and crossing unthreaded hole can allow for optical signal to pass through to photosensitive unit.Disclosed herein as well is a kind of electronic equipment and image acquiring methods.Multiple photosensitive units can receive optical signal, the image for touching object on the display face can be obtained according to the optical signal for fingerprint recognition, the area of multiple photosensitive unit distributions can be made to account for the large percentage of the area of display surface, user can carry out fingerprint recognition, better user experience on the biggish region of display surface.
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 opposite display surface and bottom surface, in the display surface and the bottom surface
Between, the display device further includes the first substrate being stacked, photosensitive layer, liquid crystal layer and the second substrate；The photosensitive layer
On the first substrate, the photosensitive layer includes multiple photosensitive units for setting；The liquid crystal layer is arranged on the photosensitive layer；
The second substrate setting on the liquid crystal layer, is provided with shading piece, offers on the shading piece in the second substrate
Multiple to cross unthreaded hole, each unthreaded hole of crossing is aligned with a corresponding photosensitive unit, and the unthreaded hole of crossing can allow for light to believe
Number pass through to the photosensitive unit.
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 opposite display surface
And bottom surface, between the display surface and the bottom surface, the display device further includes the first substrate being stacked, photosensitive
Layer, liquid crystal layer and the second substrate are provided with shading piece in the second substrate, offer on the shading piece and multiple cross unthreaded holes；
Described image acquisition methods include: to receive the imaging optical signal including target optical signal, and the target optical signal successively passes through institute
After stating display surface and the unthreaded hole excessively, the photosensitive layer is reached；And according to the imaging signal acquisition image.
In the display device of the application embodiment, electronic equipment and image acquiring method, multiple photosensitive units settings exist
Between the display surface and bottom surface of display device, photosensitive unit can receive the optical signal that unthreaded hole was entered through from display surface, according to
The image for touching object on the display face can be obtained according to the optical signal, image can be used for fingerprint recognition, meanwhile, it can according to demand
To pass through the distribution area that multiple photosensitive units are arranged, so that the area of multiple photosensitive units distribution accounts for the ratio of the area of display surface
Example is larger, and user can carry out fingerprint recognition, better user experience on the biggish region of display surface.
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 imager chip；
Fig. 6 is the photosensitive layer of the application embodiment and the structural schematic diagram of display driving layer；
Fig. 7 is the planar structure schematic diagram of the second substrate of the application embodiment；
Fig. 8 is the enlarged diagram of the part VIII of the second substrate in Fig. 7；
Fig. 9 is the flow diagram of the image acquiring method of the application embodiment；
Figure 10 is the side structure schematic view of the display device of the application embodiment；
Figure 11 is the flow diagram of the image acquiring method of the application embodiment；
Figure 12 is the side structure schematic view of the display device 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, liquid crystal layer 50, the second substrate 60, display unit 61, shading piece 62, crosses unthreaded hole at Noise Circuits unit 422
621, lightproof unit 63, 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 opposite display surface 91 and bottom surface 11, in display surface 91 and bottom surface
Between 11, display device 100 includes first substrate 30, photosensitive layer 40, liquid crystal layer 50 and the second substrate 60 being stacked.It is photosensitive
Layer 40 is arranged on first substrate 30, and photosensitive layer 40 includes multiple photosensitive units 41.Liquid crystal layer 50 is arranged on photosensitive layer 40.The
Two substrates 60 are arranged on liquid crystal layer 50.It is provided with shading piece 62 in the second substrate 60, multiple light excessively are offered on shading piece 62
Hole 621, each unthreaded hole 621 of crossing are aligned with a corresponding photosensitive unit 41, and crossing unthreaded hole 621 can allow for optical signal to pass through and arrive
Up to photosensitive unit 41.
In the electronic equipment 1000 of the application embodiment, the display of display device 100 is arranged in multiple photosensitive units 41
Between face 91 and bottom surface 11, photosensitive unit 41 can receive the optical signal that unthreaded hole 621 was entered through from display surface 91, and foundation should
Optical signal can obtain the image for touching object on display surface 91, and image can be used for fingerprint recognition, meanwhile, it can be with according to demand
By the way that the distribution area of multiple photosensitive units 41 is arranged, so that the area that multiple photosensitive units 41 are distributed accounts for the area of display surface 91
Large percentage, user can carry out fingerprint recognition, better user experience on the biggish region of display surface 91.
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 is successively inclined including backlight layer 10, the first polarizing layer 20, first substrate 30, photosensitive layer 40, liquid crystal layer 50, the second substrate 60, second
Photosphere 80, 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, photosensitive layer 40,
Liquid crystal layer 50, the second substrate 60, the second polarizing layer 80, cover board are after 90s to enter the external world.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.
Photosensitive layer 40 can be the film layer being produced on first substrate 30, such as pass through TFT (Thin Film
Transistor) technique is produced on first substrate 30.Please refer to fig. 4 to fig. 6, photosensitive layer 40 include multiple photosensitive units 41 and
Multiple circuit units 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.Each photosensitive unit 41 can work independently without being felt by other
The intensity of the influence of light unit 41, the optical signal that the photosensitive unit 41 of different location receives may be different, therefore different location
The intensity for the electric signal that photosensitive unit 41 generates may also be different.In addition, the side towards bottom surface 11 of photosensitive unit 41 can be with
It is provided with reflectorized material, the optical signal for being irradiated to photosensitive unit 41 from backlight layer 10 can be reflected by reflectorized material, avoid the portion
Spectroscopic signal influences the accuracy that photosensitive layer 40 is imaged.
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, liquid crystal layer 50 is arranged on photosensitive layer 40, and the liquid crystal molecule in liquid crystal layer 50 is in electric field
The lower changeable deflection direction of effect, and then change can pass through the amount of the optical signal of liquid crystal layer 50.Correspondingly, incorporated by reference to Fig. 6,
Display driving layer 1a can also be made on one substrate 30, layer 1a is under the driving effect of driving chip (not shown) for display driving
Electric field can be applied to liquid crystal layer 50, to control the deflection direction of the liquid crystal molecule of different location.Specifically, display driving layer 1a
Including multiple display driver element 1a1, each display driver element 1a1 can independently control the deflection of the liquid crystal of corresponding position
Direction.
Fig. 2, Fig. 4, Fig. 7 and Fig. 8 are please referred to, the second substrate 60 is arranged on liquid crystal layer 50.The second substrate 60 may include
The multiple display units 61 and shading piece 62 of glass substrate and setting on the glass substrate.Display unit 61 can be colorized optical filtering
Piece, for example, R indicates infrared fileter, G indicates that green color filter, B indicate blue color filter, by controlling across different colours
Optical filter optical signal amount, to control the color that display device 100 is finally shown.The arrangement mode of multiple display units 61
Can be corresponding with the arrangement mode of multiple display driver element 1a1, such as a display unit 61 and a display driver element
1a1 alignment.
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).The entity part of shading piece 62 can prevent light from wearing
It crosses, enters the external world without display unit 61 to avoid the light in display device 100, shading piece 62 can also prevent light from believing
Number pass through adjacent display unit 61 when occur optical crosstalk phenomenon.
Incorporated by reference to Fig. 3, unthreaded hole 621 was offered on shading piece 62, crossing unthreaded hole 621 can be used for passing through for optical signal.Cross light
The position in hole 621 is aligned with photosensitive unit 41, wherein alignment can refer to that the center line of unthreaded hole 621 passed through photosensitive unit 41.It hides
Light part 62 can be made of light absorbent, and when optical signal reaches the entity part of shading piece 62, optical signal can be partially absorbed or entirely
Portion absorbs, for example, optical signal was during passing through unthreaded hole 621, if optical signal reached the inner wall of unthreaded hole 621, light
The inner wall section that signal can be crossed unthreaded hole 621 is absorbed or is all absorbed, and enables to the biography across the optical signal for crossing unthreaded hole 621
It broadcasts direction to be almost overlapped with the extending direction for the center line for crossing unthreaded hole 621, realizes that the collimation to optical signal, photosensitive unit 41 receive
The interference optical signal arrived is less.The distribution mode for crossing unthreaded hole 621 can be identical as the distribution mode of photosensitive unit 41, so that each
Photosensitive unit 41 is crossed unthreaded hole 621 with one and is aligned.
The extending direction for crossing unthreaded hole 621 can be only capable of passing through the direction of propagation perpendicular to display surface 91 so that crossing unthreaded hole 621
The optical signal vertical with display surface 91 crosses unthreaded hole 621 and is only capable of believing by the light propagated vertically downward from display surface 91 in other words
Number.It crosses the cross-sectional width of unthreaded hole 621 and crosses the ratio of the depth of unthreaded hole 621 less than 0.2, wherein the depth for crossing unthreaded hole 621 can be with
It was depth of the unthreaded hole 621 along centerline direction, the cross-sectional width for crossing unthreaded hole 621 can be unthreaded hole 621 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 shading piece 62 is preferable to the collimating effect of optical signal.
Fig. 4, Fig. 7 and Fig. 8 are please referred to, in the embodiment of the present application, crossing unthreaded hole 621 includes that multiple sons cross unthreaded hole 6211, more
Height crosses unthreaded hole 6211 apart from one another by multiple sons including being crossed in unthreaded hole 621 at one cross unthreaded hole 6211 and the same photosensitive list
Member 41 is aligned.Specifically, in example as shown in Figure 8, four sons are crossed unthreaded hole 6211 and are aligned with the same photosensitive unit 41, each
Son is crossed the light passed through in unthreaded hole 6211 and can be reached on the same photosensitive unit 41.It is appreciated that multiple sons cross unthreaded hole 6211
Shape and size can be identical, in order to batch making.The extending direction that every height crosses unthreaded hole 6211 can be perpendicular to aobvious
Show face 91.Every height crosses unthreaded hole 6211 and the above-mentioned collimating effect to optical signal may be implemented.
Son crosses the cross-sectional width of unthreaded hole 6211 and the ratio of the sub depth for crossing unthreaded hole 6211 less than 0.2, wherein son crosses unthreaded hole
6211 depth can be son and cross unthreaded hole 6211 along the depth of centerline direction, and the cross-sectional width that son crosses unthreaded hole 6211 can be son
The maximum for the figure that unthreaded hole 6211 is cut by the plane perpendicular to center line is crossed across size, ratio specifically can be 0.1,
0.121, the numerical value such as 0.127,0.178,00.192,0.2, so that shading piece 62 is preferable to the collimating effect of optical signal.Due to
Divide the son for multiple intervals to cross unthreaded hole 6211 unthreaded hole 621 excessively and guarantees light space under the premise of guaranteeing collimating effect
Under the premise of cross-sectional width and the ratio of depth are less than 0.2, the thickness of shading piece 62 can be set smaller, to reduce display dress
Set 100 integral thickness.
Certainly, crossing unthreaded hole 621 can also not include that multiple sons cross unthreaded hole 6211, and crossing unthreaded hole 621 is complete and single hole.
Second polarizing layer 80 is arranged in the second substrate 60, and the second polarizing layer 80 specifically can be polarizing film or polarizing coating.
Please continue to refer to Fig. 2 and Fig. 3, 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.
In some examples, display device 100 can not also include cover board 90, and display surface 91 is formed on the second polarizing layer 80 at this time.
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 arbitrary shapes such as the rectangle of rectangle, circle, round rectangle, band " fringe ", this is not restricted.In addition, in some examples
In, display surface 91 also could be formed with non-display area, and non-display area can be formed in the peripheral position of viewing area 911, non-display
Area can be used for being attached with casing 200.The accounting of viewing area 911 can be 80%, 90%, 100% etc. on display surface 91
Any number.
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, photosensitive layer 40, liquid crystal layer 50, the second substrate
60, the second polarizing layer 80, cover board are after 90s enters the external world, and extraneous optical signal may also sequentially pass through cover board 90, the second polarizing layer
80, photosensitive layer 40 is reached after the second substrate 60, liquid crystal layer 50.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 optical signal L1, optical signal
L1 then begins to enter display device 100, and optical signal L1 initially passes through cover board 90 and the second polarizing layer 80, for the direction of propagation and mistake
The extending direction identical optical signal L1 of unthreaded hole 621 (or son cross unthreaded hole 6211), optical signal L1 can also pass through unthreaded hole 621 (or
Son crosses unthreaded hole 6211), after optical signal L1 passed through unthreaded hole 621, optical signal L1 reaches photosensitive unit 41 after being then passed through liquid crystal layer 50.
For the direction of propagation and the different optical signal of extending direction for crossing unthreaded hole 621 (or son crosses unthreaded hole 6211), optical signal, which passes through, to be covered
Plate 90 and the second polarizing layer are after 80s, and optical signal can not be by crossing unthreaded hole 621 (or son cross unthreaded hole 6211), and then can not reach and mistake
The photosensitive unit 41 of unthreaded hole 621 (or son crosses unthreaded hole 6211) alignment.
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.The image of the fingerprint can be further used for carrying out fingerprint recognition.
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 Fig. 9, the application embodiment also discloses a kind of image acquiring method, and image acquiring method can be applied to
Above-mentioned display device 100, image acquiring method comprising steps of
01: receiving the imaging optical signal including target optical signal；And
02: according to imaging signal acquisition image.
Wherein, step 01 can be realized by photosensitive layer 40, and step 02 can be realized by imager chip 300.Optical signal is imaged
Refer to that the received all optical signals of photosensitive unit 41, target optical signal refer to that the light that photosensitive unit 41 is reached after crossing unthreaded hole 621 is believed
Number.Step 01 and 02 specific implementation details, be referred to the above associated description to display device 100, details are not described herein.
To sum up, in the electronic equipment 1000 and image acquiring method of the application embodiment, multiple photosensitive units 41 are arranged
Between the display surface 91 and bottom surface 11 of display device 100, photosensitive unit 41 can receive from display surface 91 and enter through light
The optical signal in hole 621, the image for touching the object on display surface 91 can be obtained according to the optical signal, and image can be used for fingerprint knowledge
Not, meanwhile, foundation demand can be by the distribution area of the multiple photosensitive units 41 of setting, so that multiple photosensitive units 41 were distributed
Area accounts for the large percentage of the area of display surface 91, and user can carry out fingerprint recognition on the biggish region of display surface 91,
Better user experience.
Fig. 5 and Figure 10 is please referred to, in some embodiments, photosensitive unit 41 includes veiling glare photosensitive unit 411.Cover board 90
The back side 92 on be provided with ink layer 93, veiling glare photosensitive unit 411 is corresponding with the position of ink layer 93, and ink layer 93 is for obstructing
The optical signal Lb of cover board 90 is penetrated from the external world.
In actual use, it is directly pierced by from display surface 91 from the signal portions issued in backlight layer 10, part meeting
One or many reflections are carried out between display surface 91 and backlight layer 10, and part reflected optical signal L2 may reach sense
Light unit 41 simultaneously interferes the imaging of display device 100.That is, further including interference light in the imaging optical signal for imaging
Signal L2, interference optical signal L2 are reflected by display device 100 and reach the photosensitive unit 41 on photosensitive layer 40.
Position corresponding with veiling glare photosensitive unit 411 is provided with ink layer 93 on the above-mentioned back side 92, in display device 100
Light is largely absorbed by ink layer 93 after reaching the ink layer 93, and fraction (such as 4%) is reflected by ink layer 93, by this
Ink layer 93 can simulate cover board 90 to the reflex of the optical signal inside display device 100, in addition, veiling glare photosensitive unit
411 are also possible to receive the optical signal L2 from the side of veiling glare photosensitive unit 411 to arrival veiling glare photosensitive unit 411.It is comprehensive next
It sees, veiling glare photosensitive unit 411 can receive the interference optical signal L2 same with remaining photosensitive unit 41, and simultaneously, ink layer
93 can obstruct the optical signal Lb that (reflection or absorption) penetrates cover board 90 from the external world, so that veiling glare photosensitive unit 411 only receives
Optical signal L2 is interfered, remaining photosensitive unit 41 can then receive interference optical signal L2 simultaneously, and penetrate cover board 90 from the external world
Optical signal Lb.
The type and performance of veiling glare photosensitive unit 411 and remaining photosensitive unit 41 are all the same, and veiling glare photosensitive unit 411 will be by
For the interference electric signal transmission for interfering optical signal L2 to generate to imager chip 300, imager chip 300 will be according to the interference in imaging
Electric signal is corrected image, such as will be imaged after the imaging electric signal that optical signal generates subtracts interference electric signal and be used as finally
The accuracy rate of image recognition is improved for the electric signal of imaging to obtain the higher image of accuracy.
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 and interference electric signal is equal
It is sent in imager chip 300, the operation that imaging electric signal is subtracted to interference electric signal is executed by imager chip 300, alternatively, at
As electric signal and interfere subtracting each other for electric signal that can also carry out in analog-digital converter, i.e. imaging electric signal and interference electric signal is first
It is sent in analog-digital converter, electric signal will be imaged and subtract the operation of interference electric signal by being executed by analog-digital converter, then by two
The electric signal that person obtains after subtracting each other is sent in imager chip 300.In another example, veiling glare photosensitive unit 411 and remaining
Photosensitive unit 41 is cmos image sensor, at this point, imaging electric signal and subtracting each other for electric signal of interference can be in imager chips
It is carried out in 300, i.e. imaging electric signal and interference electric signal is sent in imager chip 300, and being executed by imager chip 300 will be at
As electric signal subtract interference electric signal operation, alternatively, imaging electric signal and interference subtracting each other for electric signal can also be in photosensitive list
It is carried out in member 41, the first memory block, the second memory block and the powered down road of logic is added in photosensitive unit 41, what photosensitive unit 41 generated
Imaging electric 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 deposited
In the second memory block, the powered down road of logic will be executed after the operation that electric signal subtracts interference electric signal being imaged for storage, then by the two phase
The electric signal obtained after subtracting is sent in imager chip 300.It is above-mentioned for imaging electric signal with interference electric signal subtract each other retouch
It states merely illustrative, should not be understood as the limitation to the application.
In one example, overleaf 92 position by proximal edge is arranged in ink layer 93, and veiling glare photosensitive unit 411 is located at
Veiling glare photosensitive unit 411 is set in the marginal position of photosensitive layer 40, such as the region a as shown in Figure 5, wherein the region a is located at figure
On one column of the leftmost side of 5 41 array of photosensitive unit and a column of the rightmost side, avoid ink layer 93 to the aobvious of display device 100
Show that effect causes too much influence.Specifically, photosensitive unit 41 can arrange in the matrix of multiple lines and multiple rows, veiling glare photosensitive unit
411 can be set the marginal position in the matrix, such as close to a column to three column for matrix edge, a line of close matrix edge
To three rows, to adapt to the position of ink layer 93.
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.
Figure 11 is please referred to, in some embodiments, image acquiring method further includes step 03: obtaining interference optical signal；
Step 02 includes step 021: obtaining image according to imaging optical signal and interference optical signal.
Wherein, step 03 can be realized by veiling glare photosensitive unit 411, and step 021 can be realized by imager chip 300.It is real
The detail for applying step 03 and step 021 can be with reference to above description, and details are not described herein.
Fig. 5 and Figure 12 is please referred to, in some embodiments, photosensitive unit 41 includes noise photosensitive unit 412, display dress
Setting 100 further includes lightproof unit 63, and lightproof unit 63 is used to block the unthreaded hole 621 excessively being aligned with noise photosensitive unit 412.
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, and cause the electric signal generated when the optical signal for receiving same intensity also different
It causes, therefore, when being imaged, needs to interfere being corrected caused by temperature change.
In present embodiment, lightproof unit 63 be arranged on shading piece 62, the type and performance of noise photosensitive unit 412 with
Remaining photosensitive unit 41 is all the same, and lightproof unit 63 blocked unthreaded hole 621, so that noise photosensitive unit 412 does not almost receive
Optical signal.Noise photosensitive unit 412 can generate electric signal in use, but since noise photosensitive unit 412 almost receives
Less than optical signal, therefore, the electric signal that noise photosensitive unit 412 generates can be considered because of material and making an uproar for generating due to temperature change
Acoustoelectric signal.At this point, remaining photosensitive unit 41 can then generate noise electric signal simultaneously, and imaging optical signal is received to generate
Electric signal is imaged.For noise photosensitive unit 412 by noise electric signal transmission to imager chip 300, imager chip 300 will in imaging
Image is corrected according to the noise electric signal, such as subtract noise electric signal for the imaging electric signal that optical signal generates is imaged
The accuracy rate of image recognition is improved to obtain the higher image of accuracy as the electric signal eventually for imaging afterwards.With it is photosensitive
Unit 41 includes the case where that veiling glare photosensitive unit 411 is similar, and imaging electric signal subtracts the operation of noise electric signal in addition to can be
It executes, can also be executed in remaining device, details are not described herein in imager chip 300.
Specifically, lightproof unit 63 can also be made of light absorbent, and lightproof unit 63 can be filled in unthreaded hole 621
Interior, lightproof unit 63 can be fabricated together with shading piece 62.In one example, lightproof unit 63 can also be directly arranged
On noise photosensitive unit 412, so that noise photosensitive unit 412 is received entirely less than optical signal.Noise photosensitive unit 412 can
The region by proximal edge of 41 array of photosensitive unit is arranged in, noise photosensitive unit 412 also be can be set photosensitive with veiling glare
The adjacent region of unit 411, such as the column to three column that can be located in matrix, or a line in matrix is to three rows,
This is not restricted, noise photosensitive unit 412 is arranged in the region b shown in fig. 5, wherein the region b is located at the photosensitive unit of Fig. 5
The secondary series from left to right of 41 arrays 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, it, in one example, can when that electric signal will be imaged and subtract noise electric signal
To be averaged to multiple noise electric signals, then will be imaged electric signal subtract be averaged after obtained noise electric signal.At another
In example, subregion can be carried out respectively to photosensitive unit 41 and noise photosensitive unit 412, each region includes that at least one is photosensitive
Unit 41 or including at least one noise photosensitive unit 412.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 third region in the following text) comprising noise photosensitive unit 412 is come true
Fixed and each first area is at a distance of nearest third region.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 noise with the first area in nearest third region
The noise electric signal that photosensitive unit 412 generates to obtain each photosensitive unit 41 eventually for the electric signal of imaging, if the
The number of noise photosensitive unit 412 is multiple in three regions, then can be first to multiple noise photosensitive units in the third region
The 412 multiple noise 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 noise photosensitive unit 412 is with photosensitive unit 41 at a distance of closer, noise photosensitive unit 412 and photosensitive unit 41
Temperature is also more close, and the noise electric signal of generation is also more close, finally obtains after electric signal will be imaged and subtract noise electric signal
The electric signal for imaging obtained is also more accurate.
Referring to Fig. 5, 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.
For photosensitive circuit itself there are hardware noise, which will lead to circuit noise signal, circuit noise signal meeting
Therefore the intensity for influencing the electric signal for being finally transferred to imager chip 300 when being imaged, is needed to circuit noise signal
Caused by interfere and be 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 carry out school to image according to the circuit noise signal in imaging
Just, it such as the imaging electric signal that optical signal generates will be imaged will subtract after circuit noise signal as the telecommunications eventually for imaging
Number, to obtain the higher image of accuracy, improve the accuracy rate of image recognition.
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
The sample for the circuit noise signal that sound circuit unit 422 generates more comprehensively, is corrected image according to the circuit noise signal
When, the effect of correction is more preferable.The margin location for the array lined up in multiple circuit units 42 also can be set in Noise Circuits unit 422
It sets, or is arranged close to above-mentioned veiling glare photosensitive unit 411 and noise photosensitive unit 412.The distribution model of Noise Circuits unit 422
Complete one can be covered by, which enclosing, arranges to five column, and the complete a line of covering, to the five-element, this is not restricted.Example as shown in Figure 5
In son, Noise Circuits unit 422 is set, wherein the region c is located at 42 array of circuit unit of Fig. 5 in the region c of photosensitive layer 40
From left to right third column, from right to left third column, a line of top side and lower side a line on.
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, when that electric signal will be imaged and subtract circuit noise signal, in an example
In, multiple circuit noise signals can be averaged, then will be imaged electric signal subtract be averaged after obtained circuit noise signal.
In another example, subregion can be carried out respectively to photosensitive unit 41 and Noise Circuits unit 422, each region includes at least
One photosensitive unit 41 or including at least one Noise Circuits unit 422.It then, can be according to each comprising photosensitive unit 41
Region (calling first area in the following text) position and each region (calling the fourth region in the following text) comprising Noise Circuits unit 422 position
It sets to determine with each first area at a distance of nearest the fourth region.For each of each first area photosensitive unit
41, the imaging electric signal that each photosensitive unit 41 can be generated is subtracted with the first area in nearest the fourth region
Noise Circuits unit 422 generate circuit noise signal to obtain each photosensitive unit 41 eventually for the telecommunications of imaging
Number, if in the fourth region Noise Circuits unit 422 number be it is multiple, can be first to multiple noises in the fourth region
Multiple circuit noise signals that circuit unit 422 generates take mean value, then will imaging electric signal subtract the mean value obtain eventually for
The electric signal of imaging.
Incorporated by reference to Figure 13, in some embodiments, image acquiring method further includes step 04: obtaining the electricity of photosensitive layer 40
Road noise acoustical signal；Step 02 includes step 022: according to imaging optical signal and circuit noise signal acquisition image.
Wherein, step 04 can be realized by Noise Circuits unit 422, and step 022 can be realized by imager chip 300.It is real
The detail for applying step 04 and step 022 can be with reference to above description, and details are not described herein.
Referring to Fig. 5, 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, unthreaded hole 621 and be received by photosensitive unit 41 across display surface 91 and crossing, 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 can receive infrared signal and visible light signal simultaneously, and according to infrared signal and visible light signal generate at
As electric signal.Infrared electric signal is further transmitted to imager chip 300, and imager chip 300 will be according to the infrared electricity in imaging
Signal is corrected image, such as will be imaged after the imaging electric signal that optical signal generates subtracts infrared electric signal and use as final
The accuracy rate of image recognition is improved in the electric signal of imaging to obtain the higher image of accuracy.
Include the case where that veiling glare photosensitive unit 411 is similar with photosensitive unit 41, imaging electric signal subtracts infrared signal
Operation can also execute, details are not described herein in addition to that can execute in imager chip 300 in remaining device.
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, when user touches display surface 91, display device 100 can sense the position touched, and imager chip 300 is read
The infrared electric signal for taking the infrared photosensitive unit 413 of one or more corresponding with the position touched to generate, and it is infrared according to this
Electric signal is corrected image.
Incorporated by reference to Figure 13, in some embodiments, image acquiring method further includes step 05: obtaining infrared signal；
Step 02 includes step 023: obtaining image according to imaging optical signal and infrared signal.
Wherein, step 05 can be realized that step 023 can be realized by imager chip 300 by infrared photosensitive unit 413.It is real
The detail for applying step 05 and step 023 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 is arranged between the second substrate 60 and the second polarizing layer 80, it is red
Outer cut film is higher to the transmitance of visible light, can achieve 90% or more, and lower to the transmitance of infrared signal, with
Prevent extraneous infrared signal from reaching 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, it, in one example, can when that electric signal will be imaged and subtract infrared electric signal
To be averaged to multiple infrared electric signals, then will be imaged electric signal subtract be averaged after obtained infrared electric signal.At another
In example, subregion can be carried out respectively to photosensitive unit 41 and infrared photosensitive unit 413, each region includes that at least one is photosensitive
Unit 41 or including at least one infrared photosensitive unit 413.It then, can be according to each region comprising photosensitive unit 41
The position of (calling first area in the following text) and each position in the region (calling the 5th region in the following text) comprising infrared photosensitive unit 413 are come true
Fixed and each first area is at a distance of the 5th nearest region.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 infrared in the 5th nearest region with the first area
The infrared electric signal that photosensitive unit 413 generates to obtain each photosensitive unit 41 eventually for the electric signal of imaging, if the
The number of infrared photosensitive unit 413 is multiple in five regions, then can be first to multiple infrared photosensitive units in the 5th region
The 413 multiple infrared 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 infrared photosensitive unit 413 is with photosensitive unit 41 at a distance of closer, infrared photosensitive unit 413 and photosensitive unit 41
The amount of the infrared light received is also more close, and the infrared electric signal of generation is also more close, will be imaged electric signal subtract it is infrared
The electric signal for imaging finally obtained after electric signal is also more accurate.
Referring to Fig. 5, 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..
Referring to Fig. 6, in some embodiments, multiple display driver element 1a1 are in the array arrangement of multiple lines and multiple rows, more
A photosensitive unit 41 is in the array arrangement of multiple lines and multiple rows, positioned at the display driver element 1a1 of same a line or same row and photosensitive list
The effective time of member 41 is interspersed.
Specifically, in production, display driving layer 1a can be first manufactured on first substrate 30, is then driven again in display
Photosensitive layer 40 is manufactured on layer 1a.Display driver element 1a1 and the interval of photosensitive unit 41 are arranged.In an array, there may be multiple senses
Light unit 41 and multiple display driver element 1a1 are located at same a line or same row simultaneously, positioned at the display of same a line or same row
Driving unit 1a1 and the effective time of photosensitive unit 41 are interspersed.In example as shown in FIG. 6, it is located at most lower in Fig. 6
Multiple display driver element 1a1 of square a line are worked at the same time, and multiple photosensitive units 41 of bottom a line work at the same time, and more
The working time of a display driver element 1a1 and the working time of multiple photosensitive units 41 do not intersect, and reduce photosensitive unit 41 and exist
The interference for the display driver element 1a1 being subject to when work improves the accuracy of imaging.
In some embodiments, sensitive chip 300 and driving chip can pass through flip chip technology (Chip On
Film, COF) it is arranged on the same flexible circuit board, bonding (bonding) to display drives layer 1a drawing to flexible circuit board again
On the pin of foot and photosensitive layer 40.And showing that the pin of driving layer 1a can be set to a row, the pin of photosensitive layer 40 can be set
It is set to another row, flexible circuit board and two rows of pins bonding simultaneously.
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 (15)
1. a kind of display device, which is characterized in that the display device includes opposite display surface and bottom surface, in the display surface
Between the bottom surface, the display device further includes being stacked:
First substrate；
Photosensitive layer on the first substrate is set, and the photosensitive layer includes multiple photosensitive units；
Liquid crystal layer on the photosensitive layer is set；And
The second substrate on the liquid crystal layer is set, shading piece is provided in the second substrate, is opened up on the shading piece
There are multiple unthreaded holes excessively, each unthreaded hole of crossing is aligned with a corresponding photosensitive unit, and the unthreaded hole of crossing can allow for light
Signal passes through to the photosensitive unit.
2. display device according to claim 1, which is characterized in that the unthreaded hole of crossing includes that multiple sons cross unthreaded hole, multiple
It is described son cross unthreaded hole apart from one another by, including one it is described cross unthreaded hole in it is multiple it is described son cross unthreaded hole with it is same described photosensitive
Unit alignment.
3. display device according to claim 1, which is characterized in that the sub cross-sectional width for crossing unthreaded hole and the sub- mistake
The ratio of the depth of unthreaded hole is less than 0.2.
4. according to claim 1 to display device described in 3 any one, 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.
5. according to claim 1 to display device described in 3 any one, which is characterized in that the shading piece is by light absorbent
It is made, the unthreaded hole excessively extends perpendicularly to the display surface.
6. according to claim 1 to display device described in 3 any one, which is characterized in that the court of multiple photosensitive units
The side of the bottom surface is provided with reflectorized material.
7. according to claim 1 to display device described in 3 any one, which is characterized in that the photosensitive unit includes veiling glare
Photosensitive unit, the display device further include cover board, and the display surface is formed on the cover board, and the cover board further includes and institute
The opposite back side of display surface is stated, ink layer, the position of the veiling glare photosensitive unit and the ink layer are provided on the back side
Corresponding, the ink layer is used to obstruct the optical signal for penetrating the cover board from the external world.
8. display device according to claim 7, 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.
9. according to claim 1 to display device described in 3 any one, which is characterized in that the photosensitive unit includes noise
Photosensitive unit, the display device further include lightproof unit, and the lightproof unit is for blocking and the noise photosensitive unit pair
The described of standard crosses unthreaded hole.
10. according to claim 1 to display device described in 3 any one, which is characterized in that the photosensitive layer further includes multiple
Circuit unit, the circuit unit include photosensitive circuit unit and Noise Circuits unit, and each photosensitive unit is connected to pair
On one answered the photosensitive circuit unit, the photosensitive unit is not connected on the Noise Circuits unit.
11. display device according to claim 10, which is characterized in that multiple circuit units are in the battle array of multiple lines and multiple rows
Column arrangement, the Noise Circuits unit are at least arranged in complete a line and a complete column.
12. according to claim 1 to display device described in 3 any one, which is characterized in that the photosensitive unit further includes more
A infrared photosensitive unit, the infrared photosensitive unit is for detecting infrared light.
13. according to claim 1 to display device described in 3 any one, which is characterized in that also set up on the first substrate
There are multiple display driver elements, multiple display driver elements are in the array arrangement of multiple lines and multiple rows, multiple photosensitive units
In the array arrangement of multiple lines and multiple rows, positioned at the effective of the display driver element of same a line or same row and the photosensitive unit
Working time is interspersed.
14. a kind of electronic equipment characterized by comprising
Casing；And
Display device described in claim 1 to 13 any one, the display device installation is on the housing.
15. a kind of image acquiring method, which is characterized in that described image acquisition methods are used for display device, the display device
Including opposite display surface and bottom surface, between the display surface and the bottom surface, the display device further includes being stacked
First substrate, photosensitive layer, liquid crystal layer and the second substrate, be provided with shading piece in the second substrate, opened on the shading piece
Unthreaded hole is crossed equipped with multiple；Described image acquisition methods include:
The imaging optical signal including target optical signal is received, the target optical signal successively passes through the display surface and the light excessively
Kong Hou reaches the photosensitive layer；And
According to the imaging signal acquisition image.
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