CN208654486U - Display screen and electronic equipment - Google Patents
Display screen and electronic equipment Download PDFInfo
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- CN208654486U CN208654486U CN201821225243.5U CN201821225243U CN208654486U CN 208654486 U CN208654486 U CN 208654486U CN 201821225243 U CN201821225243 U CN 201821225243U CN 208654486 U CN208654486 U CN 208654486U
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- 229910052733 gallium Inorganic materials 0.000 description 1
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- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- 239000011787 zinc oxide Substances 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a kind of display screen, cover board, display panel, light guiding film and light source assembly, display panel and light guiding film are layered in the opposite two sides of cover board respectively, light source assembly is distributed in the periphery of display panel, for issuing black light, black light is totally reflected light source assembly in light guiding film, and part black light reflects to form target light by user's finger and enters display panel, multiple photoelectric sensors are equipped in display panel, multiple photoelectric sensors are used for induction targets light.Above-mentioned display screen accounting is larger.A kind of electronic equipment is also disclosed in the application.
Description
Technical field
This application involves electronic technology field more particularly to a kind of display screen and a kind of electronic equipment.
Background technique
The fingerprint recognition component of conventional electronic devices is in occupation of the space of electronic equipment non-display area, so that electronic equipment
It is limited to shield accounting raising.And as screen accounting demand of the user to electronic equipment is higher and higher, how to reduce fingerprint recognition component
The area of the non-display area of electronic equipment is occupied, becomes problem to be solved to improve the screen accounting of electronic equipment.
Utility model content
Technical problems to be solved in this application are to provide a kind of biggish display screen of screen accounting and electronic equipment.
The application embodiment adopts the following technical scheme that
On the one hand, a kind of display screen, including cover board, display panel, light guiding film and light source assembly, the display panel are provided
It is layered in the opposite two sides of the cover board respectively with the light guiding film, the light source assembly is distributed in the week of the display panel
Side, the light source assembly is for issuing black light, and the black light is totally reflected in the light guiding film, described in part
Black light reflects to form target light by user's finger and enters the display panel, is equipped with multiple light in the display panel
Electric transducer, the multiple photoelectric sensor is for incuding the target light.
On the other hand, a kind of electronic equipment, including controller and above-mentioned display screen are also provided, the controller is electrically connected institute
State display screen.
Since multiple photoelectric sensors are arranged in display panel, multiple photoelectric sensors can be integrated in display screen
In and be located at viewing area in, so by multiple photoelectric sensors be formed by fingerprint recognition mould group can be set to viewing area in, refer to
Line identification mould group is not necessarily to occupy the non-display area space of display screen, and the non-display area of display screen can subtract compared to traditional display screen
Small, the viewing area of display screen can increase compared to traditional display screen, to improve the electronics of display screen and application display screen
The screen accounting of equipment.In the application, the screen accounting of electronic equipment and display screen is larger, or even can be realized full screen display.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the application, general for this field
For logical technical staff, without creative efforts, other attached drawings can also be obtained such as these attached drawings.
Fig. 1 is the structural schematic diagram of a kind of electronic equipment provided by the present application；
Fig. 2 is the structural schematic diagram of the display screen of electronic equipment shown in Fig. 1 in one embodiment；
Fig. 3 is a kind of schematic diagram of the display screen shown in Fig. 2 in use state；
Fig. 4 is the schematic diagram of the part-structure of display screen shown in Fig. 2 in the first embodiment；
Fig. 5 is structural schematic diagram of the structure shown in Fig. 4 in another angle；
Fig. 6 is the structural schematic diagram of the display panel of display screen shown in Fig. 2 in one embodiment；
Fig. 7 is projection signal in one embodiment of the circuit layer of array substrate shown in Fig. 6 on the second substrate
Figure；
Fig. 8 is the schematic diagram that projection is located at the structure in the same sub-pixel view field in Fig. 7；
Fig. 9 is a kind of driver' s timing figure of the circuit structure shown in Fig. 8 in use state；
Figure 10 is projection showing in another embodiment of the circuit layer of array substrate shown in Fig. 6 on the second substrate
It is intended to；
Figure 11 is the schematic diagram that projection is located at the structure in the same sub-pixel view field in Figure 10；
Figure 12 is the structural schematic diagram of photoelectric sensor shown in Fig. 6；
Figure 13 is the structural schematic diagram of the display panel of display screen shown in Fig. 2 in another embodiment；
Figure 14 is the structural schematic diagram of the part-structure of display screen shown in Fig. 2 in a second embodiment；
Figure 15 is structural schematic diagram of the structure shown in Figure 14 in another angle；
Figure 16 is the partial structure diagram of display screen shown in Fig. 1 in another embodiment；
Figure 17 is partial structure diagram of the display screen shown in Fig. 1 in another embodiment.
Specific embodiment
With reference to the accompanying drawing, embodiments herein is described.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of a kind of electronic equipment 1000 provided by the present application.
The application electronic equipment 1000 can be any equipment for having communication and store function, such as: tablet computer, hand
Mechanical, electrical sub- reader, remote controler, personal computer (Personal Computer, PC), laptop, mobile unit, net
The equipment such as network TV, wearable device.
Electronic equipment 1000 includes display screen 100 and controller 200.Controller 200 is electrically connected display screen 100.The application
Middle electrical connection includes that power supply connection is connected with signal.Electronic equipment 1000 further includes shell 300, and display screen 100 is installed on shell
300, controller 200 is contained in inside shell 300.
Referring to Figure 2 together and Fig. 3, Fig. 2 are the display screens 100 of electronic equipment 1000 shown in Fig. 1 in a kind of embodiment
In structural schematic diagram, Fig. 3 is a kind of schematic diagram of the display screen 100 shown in Fig. 2 in use state.For convenient for display, this Shen
It please ignore refraction of the light between different optical medium structures in attached drawing, illustrate in this together.
Display screen 100 includes cover board 5, display panel 10, light guiding film 6 and light source assembly 7.
Display panel 10 and light guiding film 6 are layered in the opposite two sides of cover board 5 respectively.For example, display panel 10 is laminated in lid
The inside of plate 5.Light guiding film 6 is laminated in the outside of cover board 5.Conductive film 6 uses translucent material, and conductive film 6 is transparent film layer.Display
The display light that panel 10 projects can pass through cover board 5 and light guiding film 6.
Light source assembly 7 is distributed in the periphery of display panel 10.Light source assembly 7 is located at the inside of cover board 5.Light source assembly 7 is used
In sending black light.Black light includes but is not limited near infrared light, infrared light, black light and ultraviolet light.Black light
It is totally reflected in light guiding film 6.Part black light reflects to form target light by user's finger and enters display panel 10.
When user's finger 40 contacts light guiding film 6, since the ridge 401 (raised part) of finger print can be with light guiding film 6
It directly contacts, is propagated to destroy total reflection of the black light (referring to bold portion light in Fig. 3) in light guiding film 6, directive
The black light of the ridge 401 of finger print can be reflected to form target light (referring to dotted portion light in Fig. 3), and target
Light can enter display panel 10.Since the paddy 402 (part of recess) of finger print is not in contact with light guiding film 6, directive hand
Refer to that the black light of the paddy 402 of fingerprint will continue to be totally reflected, without entering display panel 10.So target light carries
The finger print information of user's finger (i.e. ridge and paddy information).
Multiple photoelectric sensors 321 are equipped in display panel 10.Multiple photoelectric sensors 321 are used for induction targets light.
In the application, the meaning of " plurality " is two or more.Since target light carries the finger print information of user, photoelectric sensing
When device 321 senses light of different sizes, photoelectric effect occurs and generates electric current of different sizes, therefore photoelectric sensor
321 after sensing target light, is capable of forming electric signal corresponding with target light.Controller 200 passes through analysis telecommunications
Number, corresponding fingerprint image can be obtained, to carry out fingerprint recognition.
In this application, since multiple photoelectric sensors 321 are arranged in display panel 10, multiple photoelectric sensors
321 can be integrated in display screen 100 and be located in viewing area, know so being formed by fingerprint by multiple photoelectric sensors 321
Other mould group can be set in viewing area, and fingerprint recognition mould group is not necessarily to occupy the non-display area space of display screen 100, display screen 100
Non-display area can reduce compared to traditional display screen, the viewing area of display screen 100 can increase compared to traditional display screen,
To improve the screen accounting of display screen 100 and the electronic equipment 1000 using display screen 100.In the application, electronic equipment
1000 and display screen 100 screen accounting it is larger, or even can be realized full screen display.
Since multiple photoelectric sensors 321 are integrated in display screen 100, there is no need to the fingerprint knowledges for electronic equipment 1000
Other mould group carries out additional structure design, but also the complete machine assembling of electronic equipment 1000 is easier to realize.
It is understood that in other embodiments, when user's palm contacts light guiding film 6, it is formed by target light and takes
With user's palm print information.At this point, multiple 321 induction targets light of photoelectric sensor, so that electronic equipment 1000 obtains palm
Lines image, to realize personal recognition.
Wherein, display screen 100 further includes backlight module 4.Backlight module 4 is located at side of the display panel 10 far from cover board 5.
Backlight module 4 is used to provide backlight light for display panel 10.
Referring to Figure 2 together, Fig. 4 and Fig. 5, Fig. 4 are the part-structures of display screen 100 shown in Fig. 2 in first embodiment
In schematic diagram, Fig. 5 is structural schematic diagram of the structure shown in Fig. 4 in another angle.
The lightproof area 52 that cover board 5 has transmission region 51 and is arranged around transmission region 51.Display panel 10 has aobvious
Show area 101.Multiple photoelectric sensors 321 are set to viewing area 101.Projection of the viewing area 101 on cover board 5 falls into transmission region
51.Projection of the light source assembly 7 on cover board 5 falls into lightproof area 52.In the present embodiment, the viewing area 101 of display panel 10 is used
In display image, the viewing area 101 of display panel 10 is the viewing area of display screen 100.
Wherein, display panel 10 also has non-display area 102.Non-display area 102 is arranged around viewing area 101.It is non-display
Area 102 is in the projection section on cover board 5 or entirely falls in lightproof area 52.
Wherein, cover board 5 includes substrate and coating.Coating is attached to substrate towards the side of display panel 10.Coating covering
Non-transparent region, to block visible light.Coating allows black light to pass through.The part hollow out that coating is located in transmission region 51 is set
It sets.
Optionally, light source assembly 7 includes multiple point light sources 71.Multiple point light sources 71 are intervally arranged the four of display panel 10
Week.Wherein, multiple point light sources 71 are substantially evenly arranged in the surrounding of display panel 10 so that in light guiding film 6 each region light
It is more balanced by force, to improve the accuracy of identification of electronic equipment 1000.
Referring to Figure 2 together and Fig. 6, Fig. 6 be the display panel of display screen 100 shown in Fig. 2 in one embodiment
Structural schematic diagram.
Display panel 10 includes color membrane substrates 1, liquid crystal layer 2 and array substrate 3.Color membrane substrates 1 are opposite with array substrate 3 to be set
It sets.Liquid crystal layer 2 is between color membrane substrates 1 and array substrate 3.
Array substrate 3 includes the second substrate 31 and circuit layer 32.Circuit layer 32 is located at the second substrate 31 towards liquid crystal layer 2
Side.Circuit layer 32 is used to control the deflection action of liquid crystal in liquid crystal layer 2, shows so that display screen 100 is realized by backlight light
Show.Circuit layer 32 includes multiple photoelectric sensors 321.So circuit layer 32 is also used to incude by multiple photoelectric sensors 321
Target light realizes fingerprint recognition with pilot controller 200.
Optionally, the control of light source assembly 7 and the control of backlight module 4 are mutually independent.Electronic equipment 1000 can shown
When screen 100 is in breath screen state, foundation needs to open light source assembly 7 and makes multiple 321 induction targets light of photoelectric sensor, from
And realize fingerprint recognition.Electronic equipment 1000 can also be when display screen 100 be in bright screen state, and foundation needs to open light source group
Part 7 simultaneously makes multiple 321 induction targets light of photoelectric sensor, to realize fingerprint recognition.So the fingerprint of electronic equipment 1000
Identification maneuver can act mutually independently with display, improve flexibility, and electronic equipment 1000 can be real in the case where breath shields environment
Existing fingerprint recognition, reduces energy consumption.
Wherein, color membrane substrates 1 further include black matrix" 13.Black matrix" 13 is located at first base material 11 towards liquid crystal layer 2 one
Side.Black matrix" 13 allows black light to pass through.Multiple 321 face black matrix" 13 of photoelectric sensor settings.In other words, black
Projection of the matrix 13 on the second substrate 31 covers projection of multiple photoelectric sensors 321 on the second substrate 31.At this point, multiple
Photoelectric sensor 321 and black matrix" 13 can be multiplexed the space in the length and width of display screen 100, to improve display screen
100 aperture opening ratio.
Wherein, color membrane substrates 1 further include chromatic filter layer 14.Chromatic filter layer 14 is located at black matrix" 13 far from the first base
The side of material 11.Chromatic filter layer 14 covers black matrix" 13.Chromatic filter layer 14 includes multiple colored blocks, the face of each colour block
Color shown by color and its affiliated identification sub-pixel 30 is corresponding.
In other embodiments, chromatic filter layer 14 can also be arranged with 13 same layer of black matrix".Chromatic filter layer 14 it is more
A colour block is arranged alternately with black matrix" 13.
It is referring to Figure 6 together throwing of the circuit layer 32 of array substrate 3 shown in Fig. 6 on the second substrate 31 to Fig. 8, Fig. 7
The schematic diagram of shadow in one embodiment, Fig. 8 are that projection is located at the structure in the same sub-pixel view field 20 in Fig. 7
Schematic diagram.
Circuit layer 32 further includes a plurality of grid line 322, multiple data lines 323 and multiple thin film transistor (TFT)s 324.The application
In, " a plurality of " is meant that two or more.Wherein, multiple 324 face black matrix" 13 of thin film transistor (TFT) settings.Black
Projection of the matrix 13 on the second substrate 31 covers projection of multiple thin film transistor (TFT)s 324 on the second substrate 31.At this point, multiple
Thin film transistor (TFT) 324 and black matrix" 13 can be multiplexed the space in the length and width of display screen 100, to improve display screen
100 aperture opening ratio.
The projection of a plurality of grid line 322 and multiple data lines 323 on the second substrate 31 forms multiple sub-pixel projected areas
Domain 20.Projection of multiple thin film transistor (TFT)s 324 on the second substrate 31 falls into multiple sub-pixel view fields 20 correspondingly
In.Projection of multiple photoelectric sensors 321 on the second substrate 31 is fallen into different sub-pixel view fields 20.
Circuit layer 32 further includes multiple pixel electrodes 325.Projection of multiple pixel electrodes 325 on the second substrate 31 is one by one
It accordingly falls into multiple sub-pixel view fields 20.
In this application, the viewing area of display screen 100 has multiple sub-pixels.Each sub-pixel includes on the second substrate 31
Projection fall into part color membrane substrates 1, partial liquid crystal layer 2 and partial array substrate 3 in the same sub-pixel view field 20.
Multiple sub-pixels are located in the viewing area of display screen 100.Sub-pixel can be used in showing picture.Multiple sub-pixels constitute a picture
Plain unit.For example, a pixel unit includes three sub-pixels, three sub-pixels are respectively used to be displayed in red (R), green (G)
And blue (B) picture.In another embodiment, a pixel unit includes four sub-pixels, and four sub-pixels are respectively used to
It is displayed in red (R), green (G), blue (B) and white (W) picture or four sub-pixels and is respectively used to be displayed in red (R), green
Color (G), blue (B) and yellow (Y) picture.
Wherein, include photoelectric sensor 321 in sub-pixel some or all of in multiple sub-pixels, identify sub- picture to be formed
Element 30.It include that (namely whole sub-pixels are identification to photoelectric sensor 321 in whole sub-pixels in a kind of embodiment
Pixel 30), the entire display area of display screen 100 can incude fingerprint, and fingerprint sensed position is unrestricted.Other embodiment party
It include photoelectric sensor 321 (namely part sub-pixel is identification sub-pixel 30) in the sub-pixel of part in formula, display screen 100
Some or certain blocks of display area can incude fingerprint.
Display screen 100 has multiple identification sub-pixels 30.It is each to identify that sub-pixel 30 is included in the second base refering to Fig. 3 and Fig. 5
Projection on material 31 is located at thin film transistor (TFT) 324, pixel electrode 325 and photoelectric sensing in the same sub-pixel view field 20
Device 321.
Thin film transistor (TFT) 324 includes grid 3241 (Gate, G, also referred to as gate pole), first end 3242 and second end 3243.
In a kind of embodiment, the first end 3242 of thin film transistor (TFT) 324 is source electrode (Source, S), the second of thin film transistor (TFT) 324
End 3243 is drain electrode (Drain, D).In another embodiment, the first end 3242 of thin film transistor (TFT) 324 is drain electrode, and film is brilliant
The second end 3243 of body pipe 324 is source electrode.
Photoelectric sensor 321 includes input terminal 3211 and output end 3212.Photoelectric sensor 321 is unidirectional device, electric current
It is transmitted in input terminal 3211 on the direction of output end 3212.When photoelectric sensor 321 senses target light, by target light
It is converted into electric signal, electric signal is exported by output end 3212.
In the same identification sub-pixel 30:
The grid 3241 of thin film transistor (TFT) 324 is electrically connected to grid line 322, and grid line 322 corresponds to the identification sub-pixel
30.The signal for being used to open thin film transistor (TFT) 324 can be loaded on grid line 322, with the first end of conducting membrane transistor 324
3242 with second end 3243.The signal for closing thin film transistor (TFT) 324 can be loaded on grid line 322, to disconnect film crystalline substance
The first end 3242 and second end 3243 of body pipe 324.
The first end 3242 of thin film transistor (TFT) 324 is electrically connected to data line 323, and data line 323 corresponds to the identification sub- picture
Element 30.The second end 3243 of thin film transistor (TFT) 324 is electrically connected to pixel electrode 325.When pixel electrode 325 is powered, display screen 100
Pixel capacitance be in electriferous state, identification sub-pixel 30 is shown.As shown in solid arrow in Fig. 5, work as thin film transistor (TFT)
When 324 opening, the grayscale signal loaded on data line 323 enters pixel electrode 325, pixel capacitance band through thin film transistor (TFT) 324
Electricity, identification sub-pixel 30 are shown.The display circuit part for identifying sub-pixel 30 includes grid line 322, thin film transistor (TFT)
324, data line 323 and pixel capacitance.
Wherein, pixel capacitance include pixel electrode 325, public electrode (attached drawing is not shown) and be located at pixel electrode 325 with
Liquid crystal layer 2 between public electrode.Pixel electrode 325 is connected to the second end 3243 of thin film transistor (TFT) 324.Public electrode connection
To the public electrode wire of display screen 100 (attached drawing is not shown).Grayscale signal is loaded on data line 323, is loaded on public electrode wire
When common voltage, the both ends of pixel capacitance form pressure difference, and pixel capacitance charges are simultaneously shown.
Circuit layer 32 further includes a plurality of driving line 326.The electrical connection driving line 326 of input terminal 3211 of photoelectric sensor 321.
The output end 3212 of photoelectric sensor 321 is electrically connected to the second end 3243 of thin film transistor (TFT) 324.Such as dotted arrow institute in Fig. 5
Show, when load driver signal on driving line 326, and when the opening of thin film transistor (TFT) 324, the meeting foundation of photoelectric sensor 321 is received
Target light be converted into electric signal, and electric signal is exported by data line 323.Display screen 100 identifies user by electric signal
Finger print.The identification circuit part of identification sub-pixel 30 includes grid line 322, thin film transistor (TFT) 324, driving line 326, light
Electric transducer 321 and data line 323.
In this application, identification sub-pixel 30 is in display circuit part and identification circuit fractional reuse grid line 322, film
Transistor 324 and data line 323, to simplify the circuit of identification sub-pixel 30, so that the circuit structure of identification sub-pixel 30 is more
Simply, cost is relatively low.
It is a kind of driver' s timing figure of the circuit structure shown in Fig. 8 in use state also referring to Fig. 8 and Fig. 9, Fig. 9.
Wherein, the situation of change of signal, driving in grid line 322 corresponding to one of identification sub-pixel 30 are illustrated in Fig. 9
The situation of change of signal in line 326, in data line 323 by the situation of change of the signal of data drive circuit output (such as 3231 institutes
Show) and data line 323 in the situation of change of electric signal is formed by as photoelectric sensor 321 (as shown in 3232).
In a kind of embodiment, display screen 100 is in bright screen state induction targets light.
One frame time of display screen 100 includes display time interval and identification period.The length of display time interval and identification period can
To be configured according to demand.
In display time interval, grid line 322 opens thin film transistor (TFT) 324 for loading the first signal, and data line 323 is used
In load gray scale voltage and it is transmitted to pixel electrode 325, so that identification sub-pixel 30 is shown.Thin film transistor (TFT) 324 can be with
For N-type or p-type.The application is illustrated so that thin film transistor (TFT) 324 is N-type as an example, then opens the first letter of thin film transistor (TFT) 324
Number be high level signal.
In the identification period, grid line 322 is for loading second signal (such as high level signal) to open film crystal
Pipe 324, driving line 326 is for load driver signal and is transmitted to photoelectric sensor 321, so that photoelectric sensor 321 is according to mesh
Mark light forms electric signal and is exported by data line 323.
In another embodiment, display screen 100 is in breath screen state induction targets light.
Grid line 322 opens thin film transistor (TFT) 324 for loading third signal, and driving line 326 is believed for load driver
Number and be transmitted to photoelectric sensor 321 so that photoelectric sensor 321 forms electric signal according to target light and passes through data line
323 outputs.At this point, backlight module 4 does not work.
Optionally, the driving signal in the identification period is pulse signal.The variation of the pulse amplitude of electric signal is fed back out
The variation of target light.Controller 200 receives electric signal, and obtains the letter of user fingerprints entrained by optical signal according to electric signal
Breath, to form the fingerprint image of user.
In this application, the timesharing load driver signal on grid line 322, make in display time interval identify sub-pixel 30 into
Row display, identification the period in make identify sub-pixel 30 carry out fingerprint induction, therefore display screen 100 can take into account display function with
Inducing function, to improve the usage experience of user.
Wherein, display screen 100 further includes that gate driving circuit (attached drawing is not shown) and data drive circuit are (attached not shown
Out).A plurality of grid line 322 connects gate driving circuit.Multiple data lines 323 connect data drive circuit.A plurality of driving line 326
It is electrically connected gate driving circuit or data drive circuit.In a kind of embodiment, a plurality of driving line 326 can also be respectively connected to
Gate driving circuit or data drive circuit to realize separately driving, such as drive line by line.In other embodiments, a plurality of drive
Moving-wire 326 is connected to gate driving circuit or data drive circuit after can summarizing to a bus, to realize while drive.
It is the circuit layer 32 of array substrate 3 shown in Fig. 6 on the second substrate 31 also referring to Figure 10 and Figure 11, Figure 10
The schematic diagram of projection in another embodiment, Figure 11 are that projection is located in the same sub-pixel view field 20 in Figure 10
The schematic diagram of structure.
Present embodiment is unlike aforementioned embodiments:
Connection between multiple photoelectric sensors 321 and thin film transistor (TFT) 324 disconnects.
Circuit layer 32 further includes a plurality of output line 327.A plurality of output line 327 is connected to multiple photoelectric sensings correspondingly
The output end 3212 of device 321.Driving line 326 is for load driver signal and is transmitted to photoelectric sensor 321, so that photoelectric sensing
Device 321 forms electric signal according to target light and is exported by output line 327.
In present embodiment, the display circuit part of identification sub-pixel 30 includes grid line 322, thin film transistor (TFT) 324, number
According to line 323 and pixel capacitance.The identification circuit part for identifying sub-pixel 30 includes driving line 326, photoelectric sensor 321 and output
Line 327.Display circuit part is completely independent with identification circuit part.
Referring to Figure 6 together and Figure 12, Figure 12 be photoelectric sensor 321 shown in Fig. 6 structural schematic diagram.
Each photoelectric sensor 321 includes the first sensing electrode 3213 stacked gradually, photosensitive layer 3214 and the second sensing electricity
Pole 3215.One of first sensing electrode 3213 and the second sensing electrode 3215 belong to the input terminal of photoelectric sensor 321
3211, another one belongs to the output end 3212 of photoelectric sensor 321.First sensing electrode 3213 is located at photosensitive layer 3214 towards liquid
The side of crystal layer 2, the second sensing electrode 3215 are located at side of the photosensitive layer 3214 far from the first sensing electrode 3213 and covering light
Photosensitive layer 3214.
Wherein, identical conductive material can be used in the first sensing electrode 3213 and the second sensing electrode 3215.At this point, display
The material variety of screen 100 is less, can reduce the cost of display screen 100.
The material of the photosensitive layer 3214 of photoelectric sensor 321 can be vulcanized lead (PbS) etc. to infrared ray or near infrared ray
With special corresponding material, or indium tin zinc oxide (ITZO) or indium gallium zinc oxide (IGZO) etc. to ultraviolet light or
Near ultraviolet ray has the semiconductor material of response.
Referring to Fig. 6, multiple photoelectric sensors 321 and the setting of 324 same layer of multiple thin film transistor (TFT)s.At this point, photoelectric sensing
Device 321 and thin film transistor (TFT) 324 can be multiplexed the thickness space of display screen 100, to reduce the integral thickness of display screen 100.
Also, portion's layered structure in thin film transistor (TFT) 324 and portion's layered structure of photoelectric sensor 321 can be shared and be prepared with along with
Technique improves the producing efficiency of display screen 100 to simplify the manufacture craft of display screen 100.
Wherein, respectively in identification sub-pixel 30, the first end 3242 and second end 3243 and photoelectric sensing of thin film transistor (TFT) 324
The output end 3212 of device 321 can pass through etch process forming (the corresponding to Fig. 5) with along with.The second end of thin film transistor (TFT) 324
3243 are integrally formed with the output end 3212 of photoelectric sensor 321.When production, it can be first laid with complete conductive material layer, and
Conductive material layer is etched afterwards, once to form the first end 3242 and second end 3243 and photoelectricity of thin film transistor (TFT) 324
The output end 3212 of sensor 321.
Please refer to Figure 13, Figure 13 be the display panel part-structure of display screen 100 shown in Fig. 2 in another embodiment
Structural schematic diagram.
Present embodiment is unlike aforementioned embodiments:
Circuit layer 32 includes the display circuit layer 328 and identification circuit layer 329 being stacked.Multiple thin film transistor (TFT)s 324
Set on display circuit layer 328.Display circuit layer 328 may also include grid line 322, data line 323.Multiple photoelectric sensors 321
Set on identification circuit layer 329.Identification circuit layer 329 may also include driving line 326.In other embodiments, driving line 326 (and it is defeated
Outlet 327) it can also be set to display circuit layer 328, photoelectric sensor 321 be connected to by via hole drives (and the output line of line 326
327)。
Wherein, projection of multiple photoelectric sensors 321 on the second substrate 31 and multiple thin film transistor (TFT)s 324 are in the second base
Projection section overlapping on material 31.At this point, multiple photoelectric sensors 321 are substantially overlapped with multiple thin film transistor (TFT)s 324.It is more
A photoelectric sensor 321 can be multiplexed the space in the length and width of display screen 100 with multiple thin film transistor (TFT)s 324, thus
Improve the aperture opening ratio of display screen 100.At this point, the width of black matrix" 13 is narrower compared to aforementioned embodiments.
Display circuit layer 328 is between the second substrate 31 and identification circuit layer 329.At this point, identification circuit layer 329 more leans on
Nearly user's finger so that multiple photoelectric sensors 321 are closer at a distance from user's finger, thus improve fingerprint image at image quality
Amount, to obtain higher accuracy of identification.
In other embodiments, identification circuit layer 329 can also be between display circuit layer 328 and the second substrate 31.
Referring to Figure 2 together, Figure 14 and Figure 15, Figure 14 are the part-structures of display screen 100 shown in Fig. 2 in second embodiment
In structural schematic diagram, Figure 15 is structural schematic diagram of the structure shown in Figure 14 in another angle.
The difference of the present embodiment and first embodiment is:
Light source assembly 7 includes an area source 72.Area source 72 is arranged around display panel 10.Area source 72 provides one and connects
Continuous light-emitting surface 73, the light-emitting surface 73 is towards light guiding film 6.At this point, area source 72 is capable of providing uniform light, to improve electricity
The accuracy of identification of sub- equipment 1000.
In other embodiments, light source assembly 7 may include multiple area sources 72.Multiple area sources 72, which can be spaced each other, to be set
It sets, or is spliced into an entirety.
Figure 16 is please referred to, Figure 16 is the partial structure diagram of display screen 100 shown in Fig. 1 in another embodiment.
Present embodiment is unlike aforementioned embodiments:
Display screen 100 further includes retainer plate 8.Retainer plate 8 is arranged around display panel 10.Retainer plate 8 contacts cover board 5.Light
Source component 7 is fixed in retainer plate 8.When light source assembly 7 includes multiple point light sources 71, multiple point light sources 71 are fixed on retainer plate 8
Interior, retainer plate 8 wraps up multiple point light sources 71, and retainer plate 8 is for protecting and fixing multiple point light sources 71.Light source assembly 7 includes one
When a or multiple area sources 72, one or more area sources 72 are fixed in retainer plate 8.
Wherein, retainer plate 8 can use light transmission glue, to improve the black light incidence light guiding film 6 of the sending of light source assembly 7
Light quantity, to increase the light intensity of target light.
Figure 17 is please referred to, Figure 17 is partial structure diagram of the display screen 100 shown in Fig. 1 in another embodiment.
Present embodiment is unlike aforementioned embodiments:
Display screen 100 further includes collimation lens set 9.Collimation lens set 9 is between light source assembly 7 and cover board 5.Collimation is saturating
Microscope group 9 is used to the black light that light source assembly 7 issues being converted into collimated light beam.Due to by the invisible of collimation lens set 9
Light is collimated light beam, therefore collimation lens set 9 can be improved the utilization rate to light, so that the light intensity of target light is bigger, electricity
The accuracy of identification of sub- equipment 100 is higher.
Wherein, light guiding film 6 has the first fully reflecting surface 61 and the second fully reflecting surface 62 being oppositely arranged.First fully reflecting surface
61 between the second fully reflecting surface 62 and cover board 5.First fully reflecting surface 61 has first critical angle α.Second fully reflecting surface 62
With second critical angle β.Angle γ is formed between the primary optical axis and light guiding film 9 of collimation lens set 9.The complementary angle of angle γ be greater than etc.
In first critical angle α and it is more than or equal to second critical angle β namely 90 ° of-γ >=α and 90 ° of-γ >=β.
In the present embodiment, the angle of the parallel beam incident light guiding film 6 of black light is adjusted by collimation lens set 9,
Black light is preferably totally reflected in light guiding film 6, so that conducting effect is more preferably.
It is understood that when user's finger contacts light guiding film 6, the second fully reflecting surface of user's finger contacts 62, user hand
Refer to the direction of light (namely target light) after the total reflection environment and changing for destroying the second fully reflecting surface 62 is reflected, mesh
Mark light is mapped to the incidence angle on the first fully reflecting surface 61 less than first critical angle α, therefore target light can be all-trans through first
It penetrates face 61 and projects light guiding film 6, inject display panel 10, then to be incuded by multiple photoelectric sensors 321.
Wherein, light source assembly 7 include multiple point light sources 71 when, collimation lens set 9 include multiple collimation lenses, and with it is multiple
Point light source 71 is arranged in a one-to-one correspondence.In other embodiments, collimation lens set 9 be also possible to one substantially in round collimation it is saturating
Mirror, multiple point light sources 71 share the collimation lens.
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
In the absence of conflict, the feature in presently filed embodiment and embodiment can be combined with each other；Meanwhile for ability
The those skilled in the art in domain, according to the thought of the application, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the contents of this specification should not be construed as limiting the present application.
Claims (17)
1. a kind of display screen, which is characterized in that including cover board, display panel, light guiding film and light source assembly, the display panel and
The light guiding film is layered in the opposite two sides of the cover board respectively, and the light source assembly is distributed in the periphery of the display panel,
For issuing black light, the black light is totally reflected the light source assembly in the light guiding film, and part is described not
Visible light reflects to form target light by user's finger and enters the display panel, is equipped with multiple photoelectricity in the display panel
Sensor, the multiple photoelectric sensor is for incuding the target light.
2. display screen as described in claim 1, which is characterized in that the cover board has transmission region and surrounds the transparent area
The lightproof area of domain setting, the display panel have viewing area, and the multiple photoelectric sensor is set to the viewing area, described
Projection of the viewing area on the cover board falls into the transmission region, and projection of the light source assembly on the cover board falls into institute
State lightproof area.
3. display screen as described in claim 1, which is characterized in that the light source assembly includes multiple point light sources, the multiple
Point light source is intervally arranged in the surrounding of the display panel.
4. display screen as claimed in claim 3, which is characterized in that the display screen further includes retainer plate, the fixed corral
It is arranged around the display panel, the retainer plate contacts the cover board, and the multiple point light source is fixed in the retainer plate.
5. display screen as described in claim 1, which is characterized in that the light source assembly includes one or more area sources, institute
Area source is stated to be arranged around the display panel.
6. display screen as claimed in claim 3 or 5, which is characterized in that the display screen further includes collimation lens set, the standard
Straight lens group is positioned at the light source assembly and the cover board between, and the collimation lens set is for issuing the light source assembly
The black light is converted into collimated light beam.
7. display screen as claimed in claim 6, which is characterized in that the light guiding film has the first fully reflecting surface being oppositely arranged
With the second fully reflecting surface, for first fully reflecting surface between second fully reflecting surface and the cover board, described first is complete
Reflecting surface have first critical angle, second fully reflecting surface have second critical angle, the primary optical axis of the collimation lens set with
Angle is formed between the light guiding film, the complementary angle of the angle is more than or equal to the first critical angle and is more than or equal to described second
Critical angle.
8. the display screen as described in any one of claim 1 to 5, which is characterized in that the display panel includes color film base
Plate, liquid crystal layer and array substrate, the color membrane substrates are oppositely arranged with the array substrate, and the liquid crystal layer is located at the color film
Between substrate and the array substrate, the array substrate includes the second substrate and circuit layer, and the circuit layer is located at described the
Two substrates are set to the circuit layer towards the side of the liquid crystal layer, the multiple photoelectric sensor.
9. display screen as claimed in claim 8, which is characterized in that the color membrane substrates further include first base material and black square
Battle array, the black matrix" are located at the first base material towards the liquid crystal layer side, described in the multiple photoelectric sensor face
Black matrix" setting.
10. display screen as claimed in claim 8, which is characterized in that the circuit layer further includes a plurality of grid line, a plurality of data
Line and multiple thin film transistor (TFT)s, the projection of a plurality of grid line and the multiple data lines on second substrate form more
A sub- pixel projection region, projection of the multiple thin film transistor (TFT) on second substrate fall into described more correspondingly
In a sub- pixel projection region, projection of the multiple photoelectric sensor on second substrate falls into the different sub- pictures
In plain view field.
11. display screen as claimed in claim 10, which is characterized in that the circuit layer further includes multiple pixel electrodes, described
Multiple pixel electrodes are fallen into the multiple sub-pixel view field correspondingly in the projection on second substrate；It is described
Circuit layer further includes a plurality of driving line；
The display screen has multiple identification sub-pixels, and each identification sub-pixel includes the projection position on second substrate
The thin film transistor (TFT), the pixel electrode and the photoelectric sensor in the same sub-pixel view field, institute
The grid for stating thin film transistor (TFT) is electrically connected to the grid line, and the first end of the thin film transistor (TFT) is electrically connected to the data
Line, the second end of the thin film transistor (TFT) are electrically connected to the pixel electrode, and the input terminal of the photoelectric sensor is electrically connected institute
Driving line is stated, the output end of the photoelectric sensor is electrically connected to the second end of the thin film transistor (TFT).
12. display screen as claimed in claim 11, which is characterized in that a frame time of the display screen include display time interval and
Identify the period；
In the display time interval, the grid line is for loading the first signal to open the thin film transistor (TFT), the data
Line is for loading gray scale voltage and being transmitted to the pixel electrode, so that the identification sub-pixel is shown；
In the identification period, the grid line is for loading second signal to open the thin film transistor (TFT), the driving
Line is for load driver signal and is transmitted to the photoelectric sensor, so that the photoelectric sensor is linear according to the target light
It is exported at electric signal and by the data line.
13. display screen as claimed in claim 10, which is characterized in that each photoelectric sensor includes first stacked gradually
Sensing electrode, photosensitive layer and the second sensing electrode, first sensing electrode are located at the photosensitive layer towards the liquid crystal layer
Side, second sensing electrode is located at side of the photosensitive layer far from first sensing electrode and covering is described photosensitive
Layer, first sensing electrode and second sensing electrode use identical conductive material.
14. the display screen as described in any one of claim 10 to 13, which is characterized in that the multiple photoelectric sensor and
The multiple thin film transistor (TFT) same layer setting.
15. the display screen as described in any one of claim 10 to 13, which is characterized in that the circuit layer includes that stacking is set
The display circuit layer and identification circuit layer set, the multiple thin film transistor (TFT) are set to the display circuit layer, the multiple photoelectricity
Sensor is set to the identification circuit layer.
16. display screen as claimed in claim 15, which is characterized in that the multiple photoelectric sensor is on second substrate
Projection it is Chong Die with projection section of the multiple thin film transistor (TFT) on second substrate.
17. a kind of electronic equipment, which is characterized in that including display described in any one of controller and claim 1 to 16
Screen, the controller are electrically connected the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225243.5U CN208654486U (en) | 2018-07-31 | 2018-07-31 | Display screen and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225243.5U CN208654486U (en) | 2018-07-31 | 2018-07-31 | Display screen and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208654486U true CN208654486U (en) | 2019-03-26 |
Family
ID=65787833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821225243.5U Expired - Fee Related CN208654486U (en) | 2018-07-31 | 2018-07-31 | Display screen and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208654486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725761B (en) * | 2019-09-16 | 2021-04-21 | 神盾股份有限公司 | Electronic apparatus having under-display infrared biometrics sensor |
| CN115050283A (en) * | 2022-06-27 | 2022-09-13 | 上海天马微电子有限公司 | Display module and display device |
-
2018
- 2018-07-31 CN CN201821225243.5U patent/CN208654486U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725761B (en) * | 2019-09-16 | 2021-04-21 | 神盾股份有限公司 | Electronic apparatus having under-display infrared biometrics sensor |
| CN115050283A (en) * | 2022-06-27 | 2022-09-13 | 上海天马微电子有限公司 | Display module and display device |
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Granted publication date: 20190326 |