CN107563317A - Photosensitive module and photosensitive device - Google Patents
Photosensitive module and photosensitive device Download PDFInfo
- Publication number
- CN107563317A CN107563317A CN201710731265.2A CN201710731265A CN107563317A CN 107563317 A CN107563317 A CN 107563317A CN 201710731265 A CN201710731265 A CN 201710731265A CN 107563317 A CN107563317 A CN 107563317A
- Authority
- CN
- China
- Prior art keywords
- photosensitive
- optical
- electrical converter
- light
- grating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Solid State Image Pick-Up Elements (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
This application discloses a kind of photosensitive module and photosensitive device, belong to field of photoelectric technology.Photosensitive module includes：Processor, light source and multiple photosensitive units, photosensitive unit include：Optical-electrical converter and photocontrol component, light source can emit beam to the target bearing of photosensitive module, target bearing is located at side of the optical-electrical converter away from photocontrol component, in each photosensitive unit, optical-electrical converter is connected with processor, photocontrol component is used to filter out collimated ray in the light from target bearing incident light control assembly, and collimated ray is controlled to inject on optical-electrical converter close to the target side of photocontrol component, other sides of optical-electrical converter in addition to target side are light tight, the angle of the direction of propagation and Direction of superposition of the collimated ray before incident light control assembly is less than predetermined angle threshold value.Cover plate easily rupturable technical problem when the present invention solves manufacture photosensitive device, reduce the difficulty of photosensitive device manufacturing process.The present invention is used for the manufacture of photosensitive device.
Description
Technical field
The present invention relates to field of photoelectric technology, more particularly to a kind of photosensitive module and photosensitive device.
Background technology
Fingerprint recognition display device is photosensitive device that is a kind of while having display function, fingerprint recognition display device bag
Include：Display panel, cover plate, processor, light source and the multiple photodiodes being arranged under cover plate, and the plurality of multiple photoelectricity
Diode is generally arranged at the non-display area of display panel, and the home keys for being such as arranged on fingerprint recognition display device (also referred to as rise
Beginning key) where position.
In correlation technique, photodiode is connected with fingerprint identification processor, and light source can launch light to cover plate.When
When finger touches the home keys on cover plate, photodiode can receive the light reflected by finger, and according to receiving light
Intensity, to processor export respective strengths electric signal.Because fingerprint has multiple paddy and multiple ridges, and the height of valley and a ridge
Difference, the position of distribution is also different, and therefore, multiple photodiodes are able to receive the varying strength reflected by valley and a ridge
Light, processor can receive the different electric signal of multiple intensity of multiple photodiodes input, and according to the plurality of
The different electric signal of intensity determines the paddy ridge in fingerprint, carries out the identification of fingerprint.When manufacturing fingerprint recognition display device, generally
Need the position for corresponding to home keys on the cover board to cut an opening, and multiple photodiodes are placed in the opening, make
Photodiode and the distance between finger it is smaller, to ensure that the scattering degree of light that photodiode receives is smaller,
Improve the degree of accuracy of fingerprint recognition.
Due to being needed in correlation technique when manufacturing fingerprint recognition display device to cover plate cutting openings, and cut to cover plate
When cutting open mouthful, it is easier to cause cover plate to rupture, therefore, the difficulty of fingerprint recognition display device manufacturing process is higher.
The content of the invention
In order to solve to be needed in the prior art when manufacturing fingerprint recognition display device to cover plate cutting openings, and it is easier to
Cover plate is caused to rupture, the problem of difficulty of fingerprint recognition display device manufacturing process is higher, this application provides a kind of photosensitive mould
Group and photosensitive device.The technical scheme is as follows：
First aspect, there is provided a kind of photosensitive module, the photosensitive module include：Processor, light source and multiple photosensitive lists
Member, each photosensitive unit include：It is sequentially overlapped and optical-electrical converter and photocontrol component is set；
The light source can emit beam to the target bearing of the photosensitive module, and the target bearing is located at the photoelectricity
Side of the converter away from the photocontrol component；
In each photosensitive unit, the optical-electrical converter is connected with the processor, the photocontrol component
For filtering out collimated ray in the light for injecting the photocontrol component from the target bearing, and control the collimated light
Line is injected on the optical-electrical converter close to the target side of the photocontrol component, the optical-electrical converter except the target side it
Other outer sides are light tight；
Wherein, the angle of the direction of propagation and Direction of superposition of the collimated ray before the photocontrol component is injected is less than
Predetermined angle threshold value, the Direction of superposition are the Direction of superposition of the optical-electrical converter and the photocontrol component.
Optionally, the plane perpendicular to the Direction of superposition is reference planes,
Orthographic projection region of the optical-electrical converter in the reference planes in each photosensitive unit, each feels with described
Orthographic projection region of the photocontrol component in the reference planes in light unit partly overlaps.
Optionally, the photocontrol component includes：Grating, the entrance positions and exit positions of the grating are respectively positioned on described
Close to the side of the optical-electrical converter on grating.
Optionally, the photocontrol component also includes：Collimater, in each photosensitive unit,
The optical-electrical converter and the grating are sequentially overlapped setting, and the collimater and the optical-electrical converter are located at
The same side of the grating；
The collimater can allow for from the collimation in the light of the target bearing injection photocontrol component
Light passes through, and injects the grating；
The grating can control the collimated ray injected from the collimater, inject on the optical-electrical converter
Target side, the target side of the optical-electrical converter are the optical-electrical converter close to the side of the grating.
Optionally, the collimater includes：Multiple light absorbs bars,
The multiple light absorbs bar be arranged in parallel, and the length direction of each light absorbs bar is each parallel to the superposition side
To, and gap be present between the adjacent light absorbs bar of any two.
Optionally, the collimater includes：First light absorbs plate and the second light absorbs plate,
The first light absorbs plate and the second light absorbs plate be arranged in parallel, and the first light absorbs plate is perpendicular to institute
State Direction of superposition；
The first opening is provided with the first light absorbs plate, the second opening, institute are provided with the second light absorbs plate
State orthographic projection of orthographic projection region of first opening in the reference planes with the described second opening in the reference planes
Region is completely overlapped.
Optionally, the optical-electrical converter is photodiode,
The photodiode includes：Photoelectric conversion layer, side of the photoelectric conversion layer away from the grating are provided with
Shading electrode, the photoelectric conversion layer are provided with euphotic electrode close to the side of the grating.
Optionally, the multiple photosensitive unit forms at least one set of photosensitive unit,
Grating in photosensitive unit described in every group connects as one part, and the grating in any two groups of photosensitive units does not connect
Touch.
Optionally, each photosensitive unit also includes：Switching transistor,
The switching transistor is arranged on side of the optical-electrical converter away from the photocontrol component, and the photoelectricity turns
Parallel operation is connected by the switching transistor with the processor.
Optionally, each photosensitive unit also includes：Light shielding block, the light shielding block are covered in the switching transistor
On active layer, and positioned at close to the side of the optical-electrical converter.
Second aspect, there is provided a kind of photosensitive device, the photosensitive device include：Photosensitive module and cover plate, it is described photosensitive
Module is the photosensitive module described in first aspect,
Light source and multiple photosensitive units in the photosensitive module are respectively positioned on the homonymy of the cover plate, and the light source and institute
The optical-electrical converter stated in each photosensitive unit is set close to the cover plate.
Optionally, the photosensitive device also includes：Display panel, the display panel include：It is relative with the cover plate to set
The underlay substrate put,
The light source and the multiple photosensitive unit, the viewing area being arranged between the underlay substrate and the cover plate
Domain or non-display area.
The beneficial effect brought of technical scheme that the application provides is：
Because in the photosensitive unit in photosensitive module provided in an embodiment of the present invention, photocontrol component can be in target bearing
Collimated ray is screened in the light of injection, and controls collimated ray to inject optical-electrical converter.When the distance of photosensitive unit and finger
When farther out, the optical-electrical converter in photosensitive unit can still receive the less collimated ray of scattering degree.It is photosensitive manufacturing
During device, directly photosensitive unit can be arranged on below cover plate, and without to cover plate cutting openings, so, reduce photosensitive
The difficulty of device manufacturing process.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of application scenarios schematic diagram of photosensitive device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of photosensitive module provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of photosensitive unit provided in an embodiment of the present invention；
Fig. 4 is the structural representation of another photosensitive unit provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another photosensitive unit provided in an embodiment of the present invention；
Fig. 6 is the structural representation of another photosensitive unit provided in an embodiment of the present invention；
Fig. 7 is a kind of partial structural diagram of photosensitive module provided in an embodiment of the present invention；
Fig. 8 is the partial structural diagram of the photosensitive module of another kind provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation of photosensitive device provided in an embodiment of the present invention；
Figure 10 is the structural representation of another photosensitive device provided in an embodiment of the present invention；
Figure 11 is the partial structural diagram of another photosensitive device provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with accompanying drawing to the application embodiment party
Formula is described in further detail.
Fig. 1 is a kind of application scenarios schematic diagram of photosensitive device provided in an embodiment of the present invention, as shown in figure 1, treating
When imaging object 1 is imaged, object 1 to be imaged can be placed on to photosensitive device W offside, then, photosensitive device W can be to treating
Imaging object 1 emits beam, and detects the intensity of the light reflected by the regional of object 1 to be imaged, and then according to detection
The light intensity arrived, generate the image of object to be imaged.
Example, the object 1 to be imaged can be the fingerprint of finger, and the image of photosensitive device W generations is the image of fingerprint；
Or the object 1 to be imaged can be face, the image of photosensitive device W generations is facial image.
Fig. 2 is a kind of structural representation of photosensitive module provided in an embodiment of the present invention, and Fig. 3 provides for the embodiment of the present invention
A kind of photosensitive unit structural representation, photosensitive device W shown in Fig. 1 can include the photosensitive module shown in Fig. 2.
Incorporated by reference to Fig. 2 and Fig. 3, the photosensitive module can include：Processor 2, light source 01 and multiple photosensitive units 0.It is photosensitive
Each photosensitive unit 0 in module can include：It is sequentially overlapped the optical-electrical converter 02 and photocontrol component 03 of setting.Photosensitive mould
Light source 0 in group can emit beam to the target bearing of photosensitive module, and the target bearing is located at optical-electrical converter 02 away from light
The side of control assembly 03.Example, the orientation where object 1 to be imaged is the target bearing of photosensitive unit.
In each photosensitive unit, optical-electrical converter can be connected with processor, and photocontrol component 03 can be from mesh
Mark in the light (such as collimated ray A1 in Fig. 3 and non-aligned light A2) of orientation incident light control assembly 03 and filter out standard
Direct light line A1, and control collimated ray A1 to inject on optical-electrical converter 02 close to the target side of photocontrol component 03, opto-electronic conversion
Other sides of device 02 in addition to target side are light tight.
Wherein, the directions of propagation of the collimated ray A1 before incident light control assembly 03 and Direction of superposition B angle C1 are less than
Predetermined angle threshold value, Direction of superposition B are the Direction of superposition B of optical-electrical converter 02 and photocontrol component 03.
In summary, because in the photosensitive unit in photosensitive module provided in an embodiment of the present invention, photocontrol component can
Collimated ray is screened in the light that target bearing is injected, and controls collimated ray to inject optical-electrical converter.When photosensitive unit with
Finger it is distant when, the optical-electrical converter in photosensitive unit can still receive the less collimated ray of scattering degree.
When manufacturing photosensitive device, directly photosensitive unit can be arranged on below cover plate, and without to cover plate cutting openings, so,
Reduce the difficulty of photosensitive device manufacturing process.
As shown in figure 3, the light from target bearing incident light control assembly 03 is more, such as by the light source in photosensitive module
Or other light sources the collimated ray A1 that sends and reflected by object 1 to be imaged and non-aligned light A2.Wherein, collimated ray A1
The direction of propagation and Direction of superposition B angle C1 in incident light control assembly 03 is smaller, and is less than predetermined angle threshold value；Non- standard
The directions of propagation of the direct light line A2 in incident light control assembly 03 and Direction of superposition B angle C2 are larger, and are more than predetermined angle
Threshold value.Therefore, the photocontrol component 03 can be according to the direction of propagation for injecting light and Direction of superposition B angle, in incident light
The less collimated ray A1 of angle of the direction of propagation and Direction of superposition B is filtered out in line, and controls collimated ray A1 to inject photoelectricity
Converter 02, and forbid controlling non-aligned light A2 to inject optical-electrical converter 02.
So, ensure that all light for injecting each optical-electrical converter 02 where the optical-electrical converter is injected
Photosensitive unit when, it is smaller with Direction of superposition B angle, that is to say, ensure that inject optical-electrical converter 02 all light
It is the light reflected by the object directly over the photosensitive unit, without including by the thing positioned at the photosensitive unit oblique upper
The light of body reflection so that the electric signal that export according to the light of input of optical-electrical converter 02 and the photosensitive unit just on
The object of side is related, improves the degree of accuracy of the electrical signal intensity of photosensitive unit output.
Optionally, biography of the collimated ray when the direction of propagation before injecting grating can projected with collimated ray from grating
It is parallel to broadcast direction；For example, if the direction of propagation of the collimated ray before grating is injected and Direction of superposition B angle are 0 degree, collimate
The angle of the direction of propagation and Direction of superposition of the light when being projected from grating can also be 0 degree.Or collimated ray is in incident light
The direction of propagation before grid can be with collimated ray when being projected from grating the direction of propagation it is unrelated, and collimated ray is penetrated from grating
Direction of propagation when going out is parallel to Direction of superposition B.With the direction of propagation of the collimated ray before grating is injected and collimated ray in Fig. 3
The direction of propagation when being projected from grating is unrelated, and the direction of propagation of the collimated ray when being projected from grating is parallel to Direction of superposition
Exemplified by B.
Please continue to refer to Fig. 3, reference planes D perpendicular to Direction of superposition B, optical-electrical converter 02 on reference planes D just
View field, partly overlapped with orthographic projection region of the photocontrol component 03 on reference planes D, so that by object to be imaged
The light of 1 reflection being capable of incident light control assembly 03.
Optionally, the light source in photosensitive module can be arranged between multiple photosensitive units, and light source can be organic light emission
Diode (English：Organic Light-Emitting Diode；Referred to as：OLED).Example, light source includes：Electroluminescent
Layer, and it is located at the first electrode layer and the second electrode lay of electroluminescence layer both sides respectively.Wherein, first electrode layer can be located at
The target bearing of electroluminescence layer, the second electrode lay can be located at the opposite direction of the target bearing of electroluminescence layer, and the first electricity
Pole layer can be the electrode for being capable of printing opacity, and the second electrode lay can be lighttight electrode.It should be noted that the present invention is implemented
In example so that light source is OLED as an example, light source can also be light emitting diode (English in practical application：Light Emitting
Diode；Referred to as：LED), either infrared light supply or other light sources, the embodiment of the present invention are not construed as limiting to this.
Photocontrol component 03 in the embodiment of the present invention can be made up of a structural member or multiple structural members, and light-operated
Component 03 processed, which has, screens collimated ray A1 in the light injected from target bearing, and controls collimated ray A1 to inject optical-electrical converter
02 function.The embodiment of the present invention is explained with following three kinds of concrete structures of photocontrol component：
In a first aspect, Fig. 4 is the structural representation of another photosensitive unit provided in an embodiment of the present invention, as shown in figure 4,
On the basis of Fig. 3, photocontrol component 03 can include：Grating 031.The entrance positions of grating 031 and exit positions are respectively positioned on light
Close to the side of optical-electrical converter 02 on grid 031.
Example, grating is a kind of optics, and grating 031 can be provided with close to the surface of the side of optical-electrical converter 02
Multiple indentations, the plurality of indentation include it is multiple enter photoetching trace and multiple light extraction indentations.Light can from it is multiple enter photoetching trace where
Position enter grating, and propagated in grating；When the position where light propagates to light extraction indentation in grating, light energy
Enough positions from grating where light extraction indentation are projected, and then inject the target side of optical-electrical converter 02.In the implementation shown in Fig. 3
In example, on grating it is multiple enter photoetching trace can also filter out collimated ray in multiple light of injection, and only allow to collimate
Light is propagated in grating, and forbids other light in addition to collimated ray to be propagated in grating so that only collimated ray
Grating can be projected from light extraction indentation.
The function that grating can be realized is related to the parameter of grating.The function that grating can be realized and the parameter phase of grating
Close., can be according to the function that collimated ray A1 is screened in the light injected from target bearing when manufacturing the grating 031 shown in Fig. 4
Demand, and control collimated ray A1 inject the functional requirement of optical-electrical converter 02, determine the parameter of grating 031, and according to true
The parameter for the grating 031 made, manufacture the grating 031.
Second aspect, Fig. 5 are the structural representation of another photosensitive unit provided in an embodiment of the present invention, as shown in figure 5,
On the basis of Fig. 3, photocontrol component 03 can include：Grating 031 and collimater 032.Light source (not shown in Fig. 5), photoelectricity
Converter 02 and grating 031 can be sequentially overlapped setting, and collimater 032 and optical-electrical converter 02 are located in the same of grating 031
Side, now, the Direction of superposition of light source, optical-electrical converter 02 and grating 031 is exactly light source, optical-electrical converter 02 and photocontrol group
The Direction of superposition B of part 03.
Collimater 032 can allow for passing through from the collimated ray in the light of target bearing incident light control assembly 03, and
Inject grating 031；Grating 031 can control the collimated ray injected from collimater 032, inject the target of optical-electrical converter 02
Side is, it is necessary to which explanation, the target side of the optical-electrical converter 02 that is to say optical-electrical converter 02 close to the side of grating 031.
It is that in the embodiment shown in fig. 5, grating 031 needs only to have the collimated ray A1 that control collimater 032 is injected, and injects
The function of optical-electrical converter 02.When manufacturing the grating 031 shown in Fig. 5, the work(having can be needed according to current raster 031
Can, the parameter of grating 031 is determined, and grating 031 is manufactured according to the parameter determined.
Please continue to refer to Fig. 5, collimater 032 can include：Multiple light absorbs bars, multiple light absorbs bars be arranged in parallel, often
Gap be present between the adjacent light absorbs bar of any two each parallel to Direction of superposition B in the length direction of individual light absorbs bar.Often
The material of individual light absorbs bar is light absorbs material, and when light is irradiated on light absorbs bar, light absorbs bar can absorb this
Light.The non-aligned light A2 meeting directive light absorbs bars reflected by object 1 to be imaged, and absorbed by light absorbs bar, so that can not
Through collimater 032.And the gap that can be injected between two light absorbs bars by the collimated ray A1 that object 1 to be imaged reflects, from
And collimater 032 is passed through, and then reach grating 031.
The third aspect, Fig. 6 are the structural representation of another photosensitive unit provided in an embodiment of the present invention, and Fig. 6 is shown
Other implementations of collimater 032 in Fig. 5, as shown in fig. 6, collimater 032 can include：First light absorbs plate and second
Light absorbs plate, the first light absorbs plate and the second light absorbs plate be arranged in parallel, and the first light absorbs plate is perpendicular to Direction of superposition B；The
The first opening is provided with one light absorbs plate, the second opening is provided with the second light absorbs plate, the first opening is on reference planes D
Orthographic projection region and the second orthographic projection region of the opening on reference planes D it is completely overlapped.
The material of each light absorbs plate in first light absorbs plate and the second light absorbs plate can be light absorbs material, and
When light is irradiated on light absorbs plate, light absorbs plate can absorb the light.The non-aligned light reflected by object 1 to be imaged
A2 meeting directive light absorbs plates, and absorbed by light absorbs plate, so as to which collimater 032 can not be passed through.And reflected by object 1 to be imaged
Opening in collimated ray A1 meeting incident light baffles, so as to pass through collimater 032, and then reaches grating 031.
Optical-electrical converter 02 can be photodiode, and photodiode can include：Photoelectric conversion layer 021, photoelectricity turn
Change side of the layer 021 away from grating and be provided with shading electrode 022, photoelectric conversion layer 021 is provided with printing opacity close to the side of grating
Electrode 023.The shading electrode 022 is lighttight electrode, and euphotic electrode 023 is the electrode of printing opacity.In practical application, exist each
The photodiode of kind various kinds, on the one hand, the photodiode in the embodiment of the present invention can be the photodiode of PIN-type,
Now, the photoelectric conversion layer 021 can include：Intrinsic type semiconductor layer, and it is located at the sky of intrinsic semiconductor layer both sides respectively
Cave type semiconductor layer and N-type semiconductor layer.On the other hand, the photodiode in the embodiment of the present invention can be organic light
Electric diode (English：Organic photodiode；Referred to as：OPD).
It should be noted that grating 031 can be nanometer grating, namely grating is relatively thin film layer, therefore, whole photosensitive
The thickness of unit is smaller.Example, the thickness sum of grating 031 and photodiode in photosensitive unit can be micro- less than 100
Rice.
Further, the photosensitive unit shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6 can also include：Switching transistor and light shielding block
(switching transistor and light shielding block are not shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6).The switching transistor can be arranged on opto-electronic conversion
Side of the device 02 away from photocontrol component 03, optical-electrical converter 02 can be connected by switching transistor with processor, so as to
Processor can optionally receive the electric signal that optical-electrical converter 02 generates by switching transistor.Light shielding block can be covered
Cover on the active layer of switching transistor, and light shielding block can be located at close to the side of optical-electrical converter 02 so that light shielding block energy
Enough active layers to switching transistor carry out blocking protection, prevent the light in the direction at the place of optical-electrical converter 02 from injecting switch crystalline substance
The active layer of body pipe, active layer is avoided due to being changed characteristic by illumination.
Optionally, optical-electrical converter is close to the side of grating and (such as photoelectric conversion layer 021 removes the side away from grating
The both sides being provided with outside the both sides of shading electrode 022 and euphotic electrode 023) light shield layer can also be all covered with, at the two
In the presence of light shield layer and shading electrode 022, optical-electrical converter 02 except close to grating target side (namely set printing opacity electricity
The side of pole 023) outside printing opacity, other three sides are light tight.So that the light only from photocontrol component can just be penetrated
Enter optical-electrical converter 02, the light rather than from photocontrol component can not inject optical-electrical converter 02.
It should be noted that when photosensitive unit as shown in Figure 4 and Figure 5 when, photosensitive unit includes collimater, and the collimater
The same side of grating is arranged on photodiode, it is now, adjacent with the collimater in photosensitive module in each photosensitive unit
Side can need not set light shield layer.
Optionally, the photocontrol component in the photosensitive unit shown in Fig. 4, Fig. 5 and Fig. 6 includes grating, in photosensitive module
Multiple photosensitive units can form at least one set of photosensitive unit, and the grating in every group of photosensitive unit can connect as one
Part, and the grating in any two groups of photosensitive units does not contact.
For example, Fig. 7 is a kind of partial structural diagram of photosensitive module provided in an embodiment of the present invention, in the photosensitive module
The structure of photosensitive unit can be identical with the structure of the photosensitive unit shown in Fig. 5.In practical application, the sense in the photosensitive module
The structure of light unit can also be identical with the structure of the photosensitive unit shown in Fig. 3, Fig. 4 or Fig. 6, and the embodiment of the present invention is not made to this
Limit.Three photosensitive units (not marked in Fig. 7) are shown in Fig. 7 altogether, and three photosensitive units form one group of photosensitive unit,
Three gratings 031 in three photosensitive units connect as one part.
In practical application, Fig. 8 is the partial structural diagram of the photosensitive module of another kind provided in an embodiment of the present invention, is such as schemed
Shown in 8, on the basis of Fig. 7, three photosensitive units in Fig. 7 can also form three groups of photosensitive units, and every group of photosensitive unit
Only include a photosensitive unit, the grating 031 in two groups of photosensitive units of arbitrary neighborhood does not contact.
Optionally, when needing to treat imaging object imaging, object to be imaged can be placed on the embodiment of the present invention and carried
The target bearing of the photosensitive module supplied, and the light source in Perceived control optical mode group lights to object to be imaged.Then in photosensitive module
Each photosensitive unit can receive the collimated ray reflected by object to be imaged, and according to the collimated ray received to processing
Device sends electric signal.Finally, processor according to the intensity of each electric signal received, can generate the figure of the object to be imaged
Picture.
In summary, because in the photosensitive module in photosensitive module provided in an embodiment of the present invention, photocontrol component can
Collimated ray is screened in the light that target bearing is injected, and controls collimated ray to inject optical-electrical converter.When photosensitive unit with
Finger it is distant when, the optical-electrical converter in photosensitive unit can still receive the less collimated ray of scattering degree.
When manufacturing photosensitive device, directly photosensitive unit can be arranged on below cover plate, and without to cover plate cutting openings, so,
Reduce the difficulty of photosensitive device manufacturing process.
The embodiments of the invention provide a kind of photosensitive device, the photosensitive device can be the photosensitive device W shown in Fig. 1.Should
Photosensitive device can include：Photosensitive module and cover plate, photosensitive module can be the photosensitive module shown in Fig. 3, Fig. 7 or Fig. 8.It is photosensitive
Light source and multiple photosensitive units in module are respectively positioned on the homonymy of cover plate, and the optical-electrical converter in each photosensitive unit is close to lid
Plate is set.
Example, the concrete structure of photosensitive device provided in an embodiment of the present invention is varied, and the embodiment of the present invention will be with
Concrete structure in terms of following four is illustrated：
In a first aspect, Fig. 9 is a kind of structural representation of photosensitive device provided in an embodiment of the present invention, as shown in figure 9, should
Photosensitive device can also include：Display panel (does not mark) in Fig. 9, and the display panel can include：It is oppositely arranged with cover plate 5
Multiple pixel cells in underlay substrate 41, and the viewing area E1 being arranged between underlay substrate 41 and cover plate 5 are (in Fig. 9
Pixel cell is not shown), multiple photosensitive units and light source 01 in photosensitive module can be arranged on underlay substrate 41 and cover plate 5
Between viewing area E1 in.Multiple photosensitive units and light source 01 can be arranged between multiple pixel cells, namely photosensitive list
Member, light source 01 and pixel cell can be arranged at intervals.
Second aspect, the multiple photosensitive units and light source 01 in photosensitive module in Fig. 9 can also be arranged at substrate base
In non-display area E2 between plate 41 and cover plate 5.Example, non-display area E2 can be the region where home keys,
The embodiment of the present invention is not construed as limiting to this.
The third aspect, Figure 10 be another photosensitive device provided in an embodiment of the present invention structural representation, the photoreceptor cartridge
Putting to include：Organic Light Emitting Diode (English：Organic Light-Emitting Diode；Referred to as：OLED) show
Panel, as shown in Figure 10, the OLED display panel can include：The underlay substrate 41 being oppositely arranged with cover plate 5, and be arranged on
Multiple pixel cells (pixel cell is illustrate only in Figure 10) in viewing area between underlay substrate 41 and cover plate 5,
Multiple photosensitive units and a light source.It should be noted that non-display area between underlay substrate 41 and cover plate 5 also be present, scheme
The non-display area is not showed that in 10.
In multiple pixel cells in OLED display panel, multiple multiplexing pixel cells, as shown in Figure 10, Tu10Zhong be present
A pixel cell is illustrate only, and the pixel cell is multiplexing pixel cell.Example, each pixel cell that is multiplexed can wrap
Include：A photosensitive unit in pixel compensation circuit 42, the OLED-44 being connected with pixel compensation circuit and photosensitive module
(not marked in Figure 10).It should be noted that other pixel cells in display panel in addition to pixel cell is multiplexed can wrap
Include：The pixel compensation circuit and OLED that are connected, and it is multiplexed pixel cell photosensitive unit more than other pixel cells.
It should be noted that OLED display panel can carry out display image, sense by the way that the OLED in pixel cell is luminous
Light unit can carry out photosensitive according to the light that the light source in photosensitive unit is sent.When being multiplexed in pixel cell in photosensitive unit
When light source is OLED, the OLED can also be multiplexed with the OLED in pixel cell.So the multiplexing pixel cell can pass through one
Individual OLED, sensitization function is not only realized, and the function of being lighted in OLED display panel display image can be realized.
Further, the OLED display panel can also include：The insulating barrier being arranged between underlay substrate 41 and cover plate 5
43, photosensitive unit can include：Switching transistor 04, optical-electrical converter 02, grating 031 and collimater 032.In each multiplexing picture
In plain unit：Pixel compensation circuit 42 and OLED-44, it is sequentially overlapped along the direction away from insulating barrier 43 in insulating barrier 43 away from lining
The side of substrate 41.Grating 031, optical-electrical converter 02 and switching transistor 04 are arranged at insulating barrier 043 and underlay substrate
Between 41, and it is sequentially overlapped along the direction away from underlay substrate 41, optical-electrical converter 02 is in contact with grating 031.Switch crystal
Pipe 04 can include grid, source electrode, drain electrode and active layer 041, orthographic projection region of the active layer 041 on underlay substrate 41, position
Orthographic projection of the nontransparent region (grid in such as pixel compensation circuit 42) on underlay substrate in pixel compensation circuit 42
In region.Collimater 032 contacts close to the side of underlay substrate 41 with grating 031, and collimater 032 is away from underlay substrate 41
Side is concordant with side of the OLED electroluminescence layer away from underlay substrate 41.
Due to orthographic projection region of the active layer on underlay substrate of the switching transistor in the embodiment of the present invention, positioned at picture
Nontransparent region in plain compensation circuit is therefore, non-in pixel compensation circuit in the orthographic projection region on underlay substrate
Area pellucida domain can block to the light that photosensitive device is injected from cover plate, to prevent active layer due to being changed by illumination
Characteristic.
Please continue to refer to Figure 10, can be provided between cover plate 5 and OLED-44：Thin-film package (English：ThinFilm
Encapsulation；Referred to as：TFE) layer 6, polaroid (English：Polarizer；Referred to as：POL) 7, Optical transparent adhesive (English：
Optically Clear Adhesive；Referred to as：OCA)8.
Fourth aspect, Figure 11 are the partial structural diagram of another photosensitive device provided in an embodiment of the present invention, are such as schemed
Shown in 11, on the basis of Figure 10, collimater 032 can contact close to the side of underlay substrate 41 with grating 031, collimater
032 side away from underlay substrate 41 can also contact with insulating barrier 43.Now, insulating barrier 43 can be glass substrate.
It should be noted that in the photosensitive device shown in Figure 10 and Figure 11, the adjacent multiplexing pixel cell of any two
The distance between it is generally smaller, and the area for being each multiplexed OLED in pixel cell is larger, is multiplexed pixel compensation in pixel cell
The area of circuit is also larger.In the embodiment of the present invention, optical-electrical converter (such as photodiode) is arranged on pixel compensation circuit
Lower section so that the setting area of the optical-electrical converter is larger, therefore, can be set in pixel cell is multiplexed with compared with
The optical-electrical converter of big incidence surface product.Again because optical-electrical converter is under the premise of identical enters light quantity, incidence surface accumulates bigger, photoelectricity
The intensity of the electric signal of converter output is stronger, so, the optical-electrical converter in the embodiment of the present invention can export stronger electricity
Signal.
Optionally, in the photosensitive device shown in Figure 10 and Figure 11, photosensitive module is arranged at viewing area, in needs pair
During image objects to be imaged, it can be lighted together with the pixel cell in the light source and viewing area in Perceived control optical mode group, or,
Light source luminescent only in Perceived control optical mode group, or, only control the pixel cell in viewing area to light, the embodiment of the present invention pair
This is not construed as limiting.And because Fig. 9, Figure 10 and Figure 11 photosensitive module provided can be arranged on the viewing area of display panel
Interior, therefore, the photosensitive module can be applied to the display panel of full screen display.
Optionally, the thickness sum of the optical-electrical converter in the photosensitive unit in the embodiment of the present invention and photocontrol component can
With less than 100 microns, the distance of collimater in side and photosensitive unit of the cover plate away from photosensitive unit close to the side of cover plate
It can be 1 millimeter.
In summary, because in the photosensitive unit in photosensitive device provided in an embodiment of the present invention, photocontrol component can
Collimated ray is screened in the light that target bearing is injected, and controls collimated ray to inject optical-electrical converter.When photosensitive unit with
Finger it is distant when, the optical-electrical converter in photosensitive unit can still receive the less collimated ray of scattering degree.
When manufacturing photosensitive device, directly photosensitive unit can be arranged on below cover plate, and without to cover plate cutting openings, so,
Reduce the difficulty of photosensitive device manufacturing process.
The foregoing is only the alternative embodiment of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included within the protection domain of the application.
Claims (12)
1. a kind of photosensitive module, it is characterised in that the photosensitive module includes：Processor, light source and multiple photosensitive units, each
Photosensitive unit includes：It is sequentially overlapped and optical-electrical converter and photocontrol component is set；
The light source can emit beam to the target bearing of the photosensitive module, and the target bearing is located at the opto-electronic conversion
Side of the device away from the photocontrol component；
In each photosensitive unit, the optical-electrical converter is connected with the processor, and the photocontrol component is used for
Collimated ray is filtered out in the light for injecting the photocontrol component from the target bearing, and controls the collimated ray to penetrate
Enter close to the target side of the photocontrol component on the optical-electrical converter, the optical-electrical converter is in addition to the target side
Other sides are light tight；
Wherein, the angle of the direction of propagation and Direction of superposition of the collimated ray before the photocontrol component is injected is less than default
Angle threshold, the Direction of superposition are the Direction of superposition of the optical-electrical converter and the photocontrol component.
2. photosensitive module according to claim 1, it is characterised in that the plane perpendicular to the Direction of superposition is with reference to flat
Face,
Orthographic projection region of the optical-electrical converter in the reference planes in each photosensitive unit, with each photosensitive list
Orthographic projection region of the photocontrol component in the reference planes in member partly overlaps.
3. photosensitive module according to claim 2, it is characterised in that
The photocontrol component includes：Grating, the entrance positions and exit positions of the grating are respectively positioned on close on the grating
The side of the optical-electrical converter.
4. photosensitive module according to claim 3, it is characterised in that the photocontrol component also includes：Collimater, in institute
State in each photosensitive unit,
The optical-electrical converter and the grating are sequentially overlapped setting, and the collimater and the optical-electrical converter are located at described
The same side of grating；
The collimater can allow for from the collimated ray in the light of the target bearing injection photocontrol component
Pass through, and inject the grating；
The grating can control the collimated ray injected from the collimater, the target injected on the optical-electrical converter
Side, the target side of the optical-electrical converter are the optical-electrical converter close to the side of the grating.
5. photosensitive module according to claim 4, it is characterised in that the collimater includes：Multiple light absorbs bars,
The multiple light absorbs bar be arranged in parallel, the length direction of each light absorbs bar each parallel to the Direction of superposition,
And gap be present between the adjacent light absorbs bar of any two.
6. photosensitive module according to claim 4, it is characterised in that the collimater includes：First light absorbs plate and
Two light absorbs plates,
The first light absorbs plate and the second light absorbs plate be arranged in parallel, and the first light absorbs plate is perpendicular to described folded
Add direction；
The first opening is provided with the first light absorbs plate, is provided with the second opening on the second light absorbs plate, described
Orthographic projection region of orthographic projection region of one opening in the reference planes with the described second opening in the reference planes
It is completely overlapped.
7. photosensitive module according to claim 4, it is characterised in that the optical-electrical converter is photodiode,
The photodiode includes：Photoelectric conversion layer, side of the photoelectric conversion layer away from the grating are provided with shading
Electrode, the photoelectric conversion layer are provided with euphotic electrode close to the side of the grating.
8. photosensitive module according to claim 4, it is characterised in that the multiple photosensitive unit composition is at least one set of photosensitive
Unit,
Grating in photosensitive unit described in every group connects as one part, and the grating in any two groups of photosensitive units does not contact.
9. photosensitive module according to claim 4, it is characterised in that each photosensitive unit also includes：Switch crystal
Pipe,
The switching transistor is arranged on side of the optical-electrical converter away from the photocontrol component, the optical-electrical converter
It is connected by the switching transistor with the processor.
10. photosensitive module according to claim 9, it is characterised in that each photosensitive unit also includes：Light shielding block,
The light shielding block is covered on the active layer of the switching transistor, and positioned at close to the side of the optical-electrical converter.
11. a kind of photosensitive device, it is characterised in that the photosensitive device includes：Photosensitive module and cover plate, the photosensitive module are
Any described photosensitive module of claim 1 to 10,
Light source and multiple photosensitive units in the photosensitive module are respectively positioned on the homonymy of the cover plate, and the light source and described every
Optical-electrical converter in individual photosensitive unit is set close to the cover plate.
12. photosensitive device according to claim 11, it is characterised in that the photosensitive device also includes：Display panel, institute
Stating display panel includes：The underlay substrate being oppositely arranged with the cover plate,
The light source and the multiple photosensitive unit, the viewing area being arranged between the underlay substrate and the cover plate or
Non-display area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731265.2A CN107563317B (en) | 2017-08-23 | 2017-08-23 | Photosensitive module and photosensitive device |
| US15/953,431 US10503954B2 (en) | 2017-08-23 | 2018-04-14 | Photosensitive module, photosensitive device and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731265.2A CN107563317B (en) | 2017-08-23 | 2017-08-23 | Photosensitive module and photosensitive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107563317A true CN107563317A (en) | 2018-01-09 |
| CN107563317B CN107563317B (en) | 2020-11-24 |
Family
ID=60976705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710731265.2A Active CN107563317B (en) | 2017-08-23 | 2017-08-23 | Photosensitive module and photosensitive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107563317B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290241A (en) * | 2019-06-24 | 2019-09-27 | Oppo广东移动通信有限公司 | Display device, electronic equipment and image acquiring method |
| WO2019228279A1 (en) * | 2018-05-29 | 2019-12-05 | 京东方科技集团股份有限公司 | Compensation structure and driving method thereof, display panel, and display device |
| WO2020021399A1 (en) * | 2018-07-27 | 2020-01-30 | 株式会社半導体エネルギー研究所 | Display device, display module, and electronic apparatus |
| CN111095283A (en) * | 2019-09-06 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6650810B1 (en) * | 2000-08-15 | 2003-11-18 | Physical Optics Corporation | Tunable filter |
| CN106355160A (en) * | 2016-09-06 | 2017-01-25 | 京东方科技集团股份有限公司 | Pattern recognition device and electronic equipment |
| CN106773229A (en) * | 2017-03-10 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition display device and its driving method |
| CN106886767A (en) * | 2017-02-23 | 2017-06-23 | 京东方科技集团股份有限公司 | A kind of optical fingerprint identification device and display panel |
| CN106897701A (en) * | 2017-02-27 | 2017-06-27 | 京东方科技集团股份有限公司 | Optical finger print recognizes module and display panel, display device |
| CN106897699A (en) * | 2017-02-24 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition device, OLED display |
-
2017
- 2017-08-23 CN CN201710731265.2A patent/CN107563317B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6650810B1 (en) * | 2000-08-15 | 2003-11-18 | Physical Optics Corporation | Tunable filter |
| CN106355160A (en) * | 2016-09-06 | 2017-01-25 | 京东方科技集团股份有限公司 | Pattern recognition device and electronic equipment |
| CN106886767A (en) * | 2017-02-23 | 2017-06-23 | 京东方科技集团股份有限公司 | A kind of optical fingerprint identification device and display panel |
| CN106897699A (en) * | 2017-02-24 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition device, OLED display |
| CN106897701A (en) * | 2017-02-27 | 2017-06-27 | 京东方科技集团股份有限公司 | Optical finger print recognizes module and display panel, display device |
| CN106773229A (en) * | 2017-03-10 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition display device and its driving method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019228279A1 (en) * | 2018-05-29 | 2019-12-05 | 京东方科技集团股份有限公司 | Compensation structure and driving method thereof, display panel, and display device |
| US10970514B2 (en) | 2018-05-29 | 2021-04-06 | Boe Technology Group Co., Ltd. | Compensation structure and driving method thereof, display panel, and display device |
| WO2020021399A1 (en) * | 2018-07-27 | 2020-01-30 | 株式会社半導体エネルギー研究所 | Display device, display module, and electronic apparatus |
| JPWO2020021399A1 (en) * | 2018-07-27 | 2021-09-24 | 株式会社半導体エネルギー研究所 | Display devices, display modules, and electronic devices |
| JP7292276B2 (en) | 2018-07-27 | 2023-06-16 | 株式会社半導体エネルギー研究所 | Display device |
| US11871641B2 (en) | 2018-07-27 | 2024-01-09 | Semiconductor Energy Laboratory Co., Ltd. | Display device, display module, and electronic device |
| CN110290241A (en) * | 2019-06-24 | 2019-09-27 | Oppo广东移动通信有限公司 | Display device, electronic equipment and image acquiring method |
| CN111095283A (en) * | 2019-09-06 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111095283B (en) * | 2019-09-06 | 2023-09-12 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107563317B (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107506728A (en) | Photosensitive unit, photosensitive module and photosensitive device | |
| US10339359B2 (en) | Display panel and display device | |
| CN106981503B (en) | Display panel and electronic equipment | |
| CN107563318B (en) | Display device and electronic equipment | |
| CN107563317A (en) | Photosensitive module and photosensitive device | |
| CN107368822B (en) | Display device, manufacturing method thereof and electronic equipment | |
| US10361255B2 (en) | Display panel and display device | |
| US10468464B2 (en) | Display panel and display device | |
| CN107092892B (en) | Display panel and display device | |
| US10685206B2 (en) | Display apparatus with fingerprint identification device | |
| US20180005007A1 (en) | Display panel and display apparatus | |
| KR102509439B1 (en) | Fingerprint sensor package and display device including the same | |
| CN110263773B (en) | Display module, display device and manufacturing method of grating film layer | |
| CN103210510B (en) | Opto-electronic semiconductor module | |
| CN108538206A (en) | Display panel and display device | |
| US11538871B2 (en) | Array substrate and fabricating method thereof, and display apparatus | |
| CN108983468A (en) | A kind of display device | |
| CN106684202A (en) | Photosensitive assembly, fingerprint recognition panel and apparatus | |
| CN106373969A (en) | Display substrate and display device | |
| US10810398B2 (en) | Display panel for fingerprint recognition and display device | |
| CN106133435A (en) | Illuminator and display device | |
| CN110299085B (en) | Display panel and display device | |
| US8344311B2 (en) | Optical touch panel | |
| CN109002229A (en) | Touch panel, display module and touch display device | |
| CN108875662A (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |