CN110516657A - Sensing device and electronic equipment under a kind of screen - Google Patents
Sensing device and electronic equipment under a kind of screen Download PDFInfo
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- CN110516657A CN110516657A CN201910838849.9A CN201910838849A CN110516657A CN 110516657 A CN110516657 A CN 110516657A CN 201910838849 A CN201910838849 A CN 201910838849A CN 110516657 A CN110516657 A CN 110516657A
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
Abstract
This application provides sensing devices under a kind of screen, it includes liquid crystal display die set, receiving module and one or more instruction light sources, and the liquid crystal display die set includes the liquid crystal display panel for showing picture and the backlight module below the liquid crystal display panel.Backlight light needed for the backlight module is used to provide display.The receiving module is used to receive the sensing signal returned via external object through at least partly described display module, to sense to the external object.The instruction light source is located at the lower section of the backlight module, the instruction light source is for issuing guidance light, when the backlight module is closed and the receiving module executes sensing, the guidance light that the instruction light source issues is transferred to the liquid crystal display panel through the backlight module, and the liquid crystal display panel shows preset mark image to indicate sensing region of the receiving module in the liquid crystal display die set using the guidance light.
Description
Technical field
The application belongs to sensing device and electronic equipment under electronic technology field more particularly to a kind of screen.
Background technique
With the continuous development of smart phone technology, screen has become a kind of development trend comprehensively, increasingly increases to meet
The screen accounting added, more and more sensing mould groups that mobile phone front is originally arranged in are hidden to below screen or inside screen.So
And some sensing mould groups, such as fingerprint sensing mould group etc., need to interact to realize sensing function with user, but work as fingerprint
The setting of mould group is sensed below screen or when inside screen, user can not accurately perceive fingerprint detection region, therefore to user's
Fingerprint recognition operation and system identification efficiency adversely affect.
Summary of the invention
The application provides under a kind of screen sensing device and electronic equipment to solve the above technical problems.
Presently filed embodiment provides sensing device under a kind of screen comprising: liquid crystal display die set, comprising: liquid crystal
Show panel, for showing picture；And backlight module, positioned at the lower section of the liquid crystal display panel, for being the liquid crystal display
Backlight light needed for panel provides display；Receiving module, for through at least partly liquid crystal display die set receive via
The sensing signal that external object returns, to be sensed to the external object；And one or more instruction light sources, it is located at described
The lower section of backlight module, the instruction light source is for issuing guidance light, when the backlight module closes backlight light and described
When receiving module executes sensing, the guidance light that the instruction light source issues is transferred to the liquid crystal through the backlight module
Show that panel, the liquid crystal display panel show preset mark image to indicate receiving module in institute using the guidance light
State the sensing region in liquid crystal display die set.
In some embodiments, the external object is finger print, and the receiving module is for receiving via described
The sensing signal of finger print return is simultaneously converted to electric signal to obtain finger print information.
In some embodiments, the sensing signal includes optical signal or/and ultrasonic signal.
In some embodiments, for showing that the region of picture is defined as viewing area in the liquid crystal display die set, institute
Stating can not show that the region of picture is defined as non-display area in liquid crystal display die set, the sensing region is located at the viewing area
It is interior.
In some embodiments, it defines and shows the preset mark image on the outer surface of the liquid crystal display die set
Region be indicating area, the indicating area partially overlaps or is completely coincident with the sensing region；Or
The sensing region is less than the indicating area and is located within the indicating area；Or
The indicating area is located at the periphery of sensing region, and surrounds the sensing region.
In some embodiments, sensing device further comprises driving circuit under the screen, the liquid crystal display panel
With multiple display pixels, the driving circuit drives the display picture on the liquid crystal display panel with the indicating area face
Element shows preset mark image.
In some embodiments, the sensing signal is sensing light beam, the sensing light returned via the external object
Beam includes by the reflected sensing light beam of external object and entering the sensing light beam transmitted again after external object.
In some embodiments, the backlight module includes back light, light guide plate and reflector plate, the back light
Positioned at the side of the light guide plate, for issuing backlight light, the backlight light enters in light guide plate after mixing to liquid crystal
Show that panel projects, the instruction light source is located at below the reflector plate, and the reflector plate is located at the subjacent of light guide plate, is used for
The backlight light leaked out from light guide plate is reflected back in light guide plate.
In some embodiments, the reflector plate, which has guidance light, is greater than 0.3% and the transmitance less than 5%.
In some embodiments, the instruction light source has preset light emitting angle range, and the reflector plate is located at institute
It states the region within the scope of light emitting angle and is defined as incident area, not aperture in the incident area, the guidance light is at least
A part is projected to the liquid crystal display panel after penetrating reflector plate from incident area upwards.
In some embodiments, the instruction light source has preset light emitting angle range, and the reflector plate is located at institute
It states the region within the scope of light emitting angle and is defined as incident area, offer one or more loopholes in the incident area, one
The part guidance light is projected to the liquid crystal display panel, another part after the reflector plate through hole by described
The guidance light is projected to the liquid crystal display panel after penetrating the reflector plate without loophole.
In some embodiments, the guidance light is visible light, the wave-length coverage of the guidance light be 400nm extremely
780nm。
In some embodiments, the sensing signal is sensing light beam, and the sensing light beam is infrared or near infrared light,
Wave-length coverage is 750nm to 2000nm.
It in some embodiments, further include emitting mould train, the emitting mould train is for issuing sensing signal to described outer
Portion's object.
In some embodiments, the liquid crystal display die set includes cover sheet, and the cover sheet is located at liquid crystal
Show the outermost of mould group, the liquid crystal display panel is located at the lower section of the cover sheet, and the cover sheet includes opposite sets
The upper surface and the lower surface set, the upper surface of the cover sheet are the outer surface of liquid crystal display die set, the emitting mould train position
Enter guarantor from the lower surface of the cover sheet in the sensing light beam that the lower section of the cover sheet, the emitting mould train issue
Protecting cover intralamellar part carries out total reflection propagation, propagates to the sensing light beam of sensing region in external object by total reflection and protects
Diffusing reflection occurs for the position of protecting cover plate upper surface contact, and then can appear the cover sheet and penetrate at least partly liquid crystal
Show that mould group is received by the receiving module.
In some embodiments, the general power of the back light is greater than the total work of one or more of instruction light sources
Rate, and when the back light is opened, the instruction light source is closed.
In some embodiments, the reflector plate, which has guidance light, is greater than 0.6% and the transmitance less than 3%.
The application embodiment also provides a kind of electronic equipment comprising under the screen as described in above-mentioned any one embodiment
Sensing device, the electronic equipment is for executing corresponding function according to the sensing result of sensing device under the screen.
Technical solution provided by the present application issues guidance light by the way that the instruction light source is arranged, and closes in the back light
The back light is substituted when closing and provides guidance light to display panel, and display panel shows preset by the guidance light
Image is indicated to indicate the position where the sensing region, to guide user to cooperate sensing, power consumption is saved, improves electronics
The battery durable ability of equipment.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partially will be from following
Become obvious in description, or the practice of embodiment is recognized through the invention.
Detailed description of the invention
Fig. 1 is the positive structure schematic for the electronic equipment that the application embodiment provides；
Fig. 2 be electronic equipment described in Fig. 1 screen under light path schematic diagram of sensing device when being sensed；
Fig. 3 be electronic equipment described in Fig. 1 screen under sensing device carry out sensing region mark when light path schematic diagram；
Fig. 4 is the optical path signal when electronic equipment that one alternate embodiments of the application provide carries out sensing region mark
Figure；
Fig. 5 is when the electronic equipment that one alternate embodiments of the application provide senses and when carrying out sensing region mark
Light path schematic diagram；
Fig. 6 is the optical path signal when electronic equipment that one alternate embodiments of the application provide carries out sensing region mark
Figure；
Fig. 7 is the positive structure schematic of sensing device under the screen that one alternate embodiments of the application provide；
Fig. 8 is the positive structure schematic of sensing device under the screen that one alternate embodiments of the application provide；
Fig. 9 is the positive structure schematic of sensing device under the screen that one alternate embodiments of the application provide；
Figure 10 is the positive structure schematic of sensing device under the screen that one alternate embodiments of the application provide.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.In
In description of the invention, it is to be understood that term " first ", " second " are only used for describing, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic or put in order.Define as a result, " first ",
The technical characteristic of " second " can explicitly or implicitly include one or more technical characteristic.It is retouched in of the invention
In stating, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise specific regulation or limit, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integration connection；It can
To be mechanical connection, it is also possible to be electrically connected or is in communication with each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship between two elements be can be.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereafter only to the component of specific examples and being set for describing.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can reuse reference number and/or reference word in different examples
Mother, this reuse are itself not indicate the various embodiments discussed to simplify and clearly state the present invention
And/or the particular kind of relationship between setting.In addition, the present invention in the following description provided by various specific techniques and material only
The example of technical solution to realize the present invention, but those of ordinary skill in the art should be aware that technical solution of the present invention
It can be realized by other techniques for not describing hereafter and/or other materials.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, many details are provided so as to fully understand embodiments of the present invention.However, this
Field technical staff will be appreciated that even if without one or more in the specific detail, or using other structures, group
Member etc. can also practice technical solution of the present invention.In other cases, it is not shown in detail or describes known features or operation
To avoid the emphasis of the fuzzy present invention.
It please refers to Fig.1 to Fig.3, the invention discloses a kind of electronic equipment 1, which is, for example, but is not limited to
The electronics of the suitable types such as consumer electrical product, household formula electronic product, vehicular electronic product, financial terminal product produces
Product.Wherein, consumer electrical product is, for example, mobile phone, tablet computer, laptop, tabletop display, computer all-in-one machine etc..
Household formula electronic product is, for example, intelligent door lock, TV, refrigerator etc..Vehicular electronic product is, for example, automatic navigator, vehicle-mounted
DVD etc..Financial terminal product is, for example, ATM machine, terminal of self-service transacting business etc..
The electronic equipment 1 includes shielding lower sensing device 10.Sensing device 10 is used for positioned at electronic equipment 1 under the screen
External object in addition, such as: the fingerprint on finger is sensed.The electronic equipment 11 is used to be filled according to sensing under the screen
10 sensing result is set to execute corresponding function.The corresponding function includes but is not limited to carry out after identifying the external object
The physical functions parameter such as the heart rate of unlock, payment, starting application program, or acquisition user and the oxygen content of blood is to judge user's
The combination of any one or more in mood and health condition.
Sensing device 10 includes that display module 11, emitting mould train 12, receiving module 13 and one or more refer under the screen
Show light source 14.The display module 11 is for showing picture.The emitting mould train 12 is for issuing sensing signal to external object.
The display module 11 includes outer surface 110 on the outermost side.Pass through institute via the sensing signal that the external object returns
It states outer surface 110 to enter under the screen inside sensing device 10, and is received by the receiving module 13 and sensed accordingly.
It can be the reflected sensing signal of external object (from institute in referring to fig. 2 via the sensing signal that the external object returns
State the dotted path of the sending of emitting mould train 12), or enter the sensing signal (ginseng transmitted again after the external object
See the solid-line paths issued in Fig. 2 from emitting mould train 12), the application is not specifically limited in this embodiment.The sensing signal can be
But it is not limited to optical signal or/and ultrasonic signal.
In this application, the display module 11 be preferably liquid crystal display die set (Liquid Crystal Display,
LCD).So, ground is changed, the display module 11 can also be the mould group with other suitable passive light emitting display panels, example
Such as electronic paper display mould group.
It is that liquid crystal display die set citing is illustrated with the display module 11 in application.The liquid crystal display die set
11 include liquid crystal display panel 111 and the backlight module 112 positioned at 111 lower section of liquid crystal display panel.The liquid crystal display
Panel 111 is for showing picture.The backlight module 112 is used to provide backlight light for the liquid crystal display panel 111.
The liquid crystal display panel 111 has multiple display pixel (not shown).Optionally, sensing device 10 under the screen
It further comprise driving circuit (not shown).The driving circuit is by modulating the backlight light through the display pixel come real
Now corresponding picture is shown.The display pixel for example including pixel electrode, for forming electric field between the pixel electrode
Public electrode and switch.The driving circuit is connected to the pixel electrode by switch.The driving circuit passes through tune
The whole cramping size being applied between the pixel electrode and the public electrode, and then the adjustable display pixel is shown
Grayscale.
The backlight module 112 includes brightening piece 116, diffusion sheet 117, back light 113, light guide plate 114 and reflector plate
115.The light guide plate 114 include light-emitting surface 1142, the bottom surface 1140 being oppositely arranged with light-emitting surface 1142 and described in connect out
The incidence surface 118 of smooth surface 1142 and bottom surface 1140.The back light 113 is for issuing backlight light.The backlight light is
Visible light.The backlight light is out of incidence surface 118 entrance light guide plate 114 from light-emitting surface 1142 to liquid crystal display panel after mixing
111 project.The reflector plate 115 is located at 1140 lower section of bottom surface of light guide plate 114, for that will leak from 114 bottom surface 1140 of light guide plate
Backlight light out is reflected back in light guide plate 114, to improve the utilization rate of backlight light.The diffusion sheet 117 is located at light guide plate
114 1142 side of light-emitting surface, for the backlight light projected from the light-emitting surface 1142 of light guide plate 114 to be diffused, to mention
The brightness uniformity of high backlight light.The brightening piece 116 is located at the side of 117 face away from light guide 114 of diffusion sheet, is used for
The backlight light spread through diffusion sheet 117 is concentrated along light direction, to improve the overall brightness of backlight.It is understood that
The display module 11 in when putting out screen state, close by the back light 113.
Ground is changed, in some embodiments, the brightening piece 116 can be omitted.
It is understood that the liquid crystal display die set 11 can also include cover sheet 119.The cover sheet 119
Positioned at the outermost of the liquid crystal display die set 11, for protecting the liquid crystal display die set 11.The cover sheet 119 includes
The upper surface 1190 and lower surface 1192 being oppositely arranged.The liquid crystal display panel 111 is located at the following table of the cover sheet 119
1192 side of face.The outer surface 110 of the liquid crystal display die set 11 is the upper surface 1190 of cover sheet 119.
The emitting mould train 12 can be located at lower section or the display module 11 of at least partly described display module 11
Inside, specific location is it is not limited here.In the present embodiment, the sensing signal is sensing light beam.The transmitting mould
Group 12 is located at the lower section of the backlight module 112, through at least partly described transmitting of the display module 11 sensing light beam to outside
Object.The sensing light beam can be infrared or near infrared light, and wave-length coverage is 750nm to 2000nm.The emitting mould train 12
It can include but is not limited to one or more light emitting diodes (Light Emitting Diode, LED), vertical-cavity surface-emitting
Laser (Vertical Cavity Surface Emitting Laser, VCSEL) and laser diode (Laser
Diode,LD)。
The receiving module 13 can receive the maximum space range definition of the sensing signal returned via external object
For the signal range of receiving of the receiving module 13.Such as: the sensing signal is sensing light beam, and the receiving module 13 is for example
Including the lens module for imaging, then the visual field scope (Filed of View, FOV) of the lens module is described
The signal range of receiving of receiving module 13.It is fixed that the outer surface 110 is located at the part in the signal range of receiving of receiving module 13
Justice is sensing region S1, could be by the reception via the sensing signal that the portion of external object being located in sensing region S1 returns
Mould group 13 receives.The sensing region S1 is such as, but not limited to located at the position opposite with the receiving module 13, via outer
The sensing signal that portion's object returns directly is received by the receiving module 13 after penetrating at least partly display module 11.It is understood that
, the sensing signal of return can not also be directly by the receiving module 13 after through at least partly display module 11
It receives, but by signal transduction element, such as: light guide structure etc., conduction to the receiving module 13 are received again, thus
The receiving module 13 also can be set in other positions not opposite with the sensing region 130.In the present embodiment, institute
Stating external object is finger print, and the sensing signal is sensing light beam.The sensing region of the finger and the outer surface 110
S1 contact receives so that can be received mould group 13 via the sensing light beam that the finger print returns.The receiving module
13 according to received sensing light beam the finger print information of the finger is sensed.
For showing that the region of picture is defined as viewing area 104 in the display module 11.Nothing in the display module 11
Faxian shows that the region of picture is defined as non-display area 106.The non-display area 106 can be located at the periphery of the viewing area 104
Or edge.The viewing area 104 can be completely coincident with pixel region (not shown) for displaying images in display module 11.
The cover sheet 119 and the part of 106 face of non-display area are provided with non-transparent membrane material, for blocking visible light so that
The internal element of sensing device 10 under the screen can not be seen from the non-display area 106 outside by obtaining user.It is understood that
It is that the viewing area 140 might be less that pixel region for displaying images in display module 11, it can some picture
Plain region is located in the non-display area 106 and is blocked by the non-transparent membrane material.
It should be noted that the position of the emitting mould train 12 is also not limited to the lower section of backlight module 112, it can also position
In other any suitable positions, for example, being located at the liquid crystal display panel 111 or side of backlight module 112 etc..In addition,
When the sensing signal of the emitting mould train 12 transmitting is mainly emitted above the cover sheet 119 by the non-transparent membrane material
When, the non-transparent membrane material is at least transmissive to the sensing signal in the irradiation area of the emitting mould train 12.Wherein, described
Sensing signal is black light signal, such as infrared or near infrared light.
Ground is changed, in some embodiments, the emitting mould train 12 also can be omitted.
Optionally, the sensing region S1 is located in the viewing area 104.The receiving module 13 is arranged in the display
The lower section of mould group 11 is simultaneously located in the viewing area 104.The sensing region S1 is oppositely arranged with the receiving module 13.It is described
Receiving module 13 is located in the sensing region S1 in the projection on the outer surface 110.
It is understood that the display can also be arranged in the receiving module 13 in other alternate embodiments
The inside of mould group 11.Such as: the receiving module 13 can be the photosensitive element being arranged in display pixel, via the outside
The sensing light beam that object returns is received through after at least partly display module 11 by the photosensitive element to realize corresponding sensing.
The receiving module 13 also can be set on other suitable positions, and the application is not specifically limited in this embodiment.
The instruction light source 14 is arranged below the backlight module 112, for issuing guidance light, the guidance light
Indicating area D1 is defined as through the partial region for the outer surface 110 that display module 11 can be irradiated to.The indicating area D1
It can be used for showing preset mark image on the outer surface to indicate the position where the sensing region S1, to guide user
Cooperation sensing.Such as: if sensing device 10 is to shield lower fingerprint identification device under the screen, the indicating area D1 can be used for guiding
Finger is placed on the sensing region S1 and carries out fingerprint recognition by user.In the present embodiment, the indicating area D1 is located at
It in the viewing area 104 and is the regional area of the viewing area 104.Optionally, the indicating area D1 and the sensing area
Domain S1 is completely coincident, or, the indicating area D1 is located in institute sensing region S1, or, the sensing region S1 is located at the finger
Show in the D1 of region but the two area is not much different or the instruction area D1 is around the sensing region S1, or, the indicating area
The part of D1 and the part of the sensing region S1 are overlapped mutually etc..
It is understood that the instruction light source 14 is visible light source, the guidance light issued is visible light.It is described
Indicate that light source 14 is, for example, the light emitting diode (Light Emitting Diode, LED), vertical cavity surface emitting laser
(Vertical Cavity Surface Emitting Diode, VCSEL) and laser diode (Laser Diode,
LD)。
One or more instruction light sources 14 can arrange by preset rules or irregular arrangement.Such as: multiple fingers
Show that light source 14 is symmetrical centered on the receiving module 13, multiple instruction light sources 14 and the receiving module 13 can be with
It can also be located at different level positioned at same level, multiple instruction light sources 14 can be with spaced set, can also
It is arranged with unequal spacing.
Specifically, one or more instruction light sources 14 are located at the lower section of reflector plate 115.One or more instructions
The guidance light that light source 14 issues through after the reflector plate 115, through the light guide plate 114, the films such as diffusion sheet 117 and brightening piece 116
111 lower section of liquid crystal display panel is emitted to after layer structure.Wherein, transmitance example of the reflector plate 115 to guidance light
Such as less than 10% and be greater than 0.Optionally, the reflector plate 115 less than 5% and is greater than 0.3% to the transmitance of guidance light.From
And so that liquid crystal display panel 111 shows display effect when full screen pictures and aobvious when showing the preset mark image
Show that effect is preferable.So, ground is changed, in some embodiments, the reflector plate 115 is to the transmitance to guidance light
It is smaller than 3% and is greater than 0.6%.
When the sensing signal is infrared or near infrared light, the reflector plate 115 can also transmit described infrared or close
Infrared light, and 70% is greater than to infrared or near infrared light transmitance.
The reflector plate 115 for example but is not limited to enhanced specular reflectivity piece (Enhanced Specular
Reflector, ESR), by the not exactly the same polymer application of refractive index of the multilayer to visible light beam and near infrared light or pressure
It closes.So, ground is changed, in some embodiments, the reflector plate 115 can also be other suitable structures.
The guidance light of 117 pairs of diffusion sheet processes carries out Homogenization Treatments, enables to issue from instruction light source 14
The angle of flare of guidance light become larger and whole more uniformization of guidance light.Correspondingly, it is connect when multiple instruction light sources 14 surround
Receive mould group 13 be arranged when, it is the multiple instruction light source 14 issue visible light beam by diffusion sheet 117 Homogenization Treatments it
Whole group's light beam can be for example formed above receiving module 13 or below the regional area of liquid crystal display panel 111 afterwards.
Correspondingly, when the back light 113 is closed and receiving module 13 executes fingerprint sensing, the instruction light source 14
It shows visible light beam is provided for the image of the liquid crystal display panel 111, the driving circuit driving liquid crystal display panel 111
Part display pixel shows preset mark image in indicating area D1.It should be noted that liquid crystal display panel 111 show it is pre-
If the region of mark image be indicating area D1.The preset mark image is such as, but not limited to be fingerprint pattern.
It can be seen from the above, if be located at the guidance light range of exposures in display pixel open when, the guidance light
It can be irradiated on the outer surface 110 of liquid crystal display die set 11 through display pixel and form the indicating area D1.The liquid crystal
Display panel 111 can show preset mark image by the guidance light in the D1 of indicating area.The mark image
For prompting the position where sensing region S1 described in user, in order to which user is when detecting by finger and the sensing region S1
It is in contact.The mark image in addition to above-mentioned fingerprint pattern, such as or it is various other have it is of different shapes shine
Region.The driving circuit can change described by the light transmission state of the display pixel of the adjusting liquid crystal display panel 111
Indicate shape, brightness and the color of image.
It is understood that in order to form the instruction in the position of the sensing region S1 opposite with receiving module 13
The light direction of region D1, the instruction light source 14 can be tilted towards the receiving module 13.
Optionally, when the back light 113 is opened, the instruction light source 14 is closed.
The general power of one or more of instruction light sources 14 is less than the general power of the back light 113.So as to
Improve the standby capacity of electronic equipment 1.
Optionally, the instruction light source 14 is for example with preset light emitting angle range.The light emitting angle range definition
The spatial dimension that can be irradiated to for the guidance light that the instruction light source 14 issues.The reflector plate 115 is located at the finger
Show that the region within the scope of the light emitting angle of light source 14 is defined as incident area I1.Incident area I1 on the reflector plate 115 is not
At least part of aperture, the guidance light is projected to the LCD display through reflector plate 115 from incident area upwards
Plate 111, to show the preset mark image.
As shown in figure 4, in other alternate embodiments, on the reflector plate 115 can also with the emitting mould train
One or more loopholes 1150 are opened up at 12 opposite positions, a part of guidance light can pass through the loophole
1150 are projected to the liquid crystal display panel 111 after the reflector plate 115, and a part of guidance light can be without saturating
Unthreaded hole 1150 and penetrate the reflector plate 115 after be projected to the liquid crystal display panel 111.The loophole 1150 is provided with institute
It states in incident area I1.The guidance light can be increased by anti-by opening up loophole 1150 on the reflector plate 115
It penetrates piece 115 and projects whole luminous flux on the liquid crystal display panel 111, be conducive to improve the bright of shown mark image
Degree, or the power consumption for indicating light source 14 is reduced under the premise of maintaining the mark image same brightness.The loophole 1150
In the incident area I1.Multiple instruction light sources 14 can be formed on the reflector plate 115 it is corresponding it is multiple enter
Region D1 is penetrated, one or more loopholes 1150 can be formed in each incident area D1.Because of the loophole
1150 size is smaller, such as: it 10 microns, will not be influenced caused by the display effect the liquid crystal display die set 11.
As shown in figure 5, the emitting mould train 12 may be located in non-display area 106 in other alternate embodiments
The part cover sheet 119 lower section.The sensing light beam that the emitting mould train 12 issues is under the cover sheet 119
Surface 1192, which enters inside cover sheet 19, carries out total reflection propagation, and the sensing of sensing region S1 is propagated to by total reflection
In the position that fingerprint ridge is contacted with 1190 upper surface 1190 of cover sheet diffusing reflection occurs for light beam, and then can appear the protection
Cover board 119 is simultaneously received through at least partly display module 11 by the receiving module 14.Sensing light beam court after diffusing reflection
It is irradiated to all directions.What the emitting mould train 12 was issued senses light beam and enters the sense inside the cover sheet 119
Surveying light beam is uncollimated rays or non-parallel beam.It include several light sensings in the sensing light beam of the non-collimated light,
And the angle of at least two light sensings is not less than 10 degree, 15 degree, 20 degree, 25 degree.
As shown in Figure 6, it is to be understood that the guidance light that multiple instruction light sources 14 issue respectively is through backlight module
Corresponding multiple indicating area D1 can also be formed in 112 after the homogenization of each film layer on outer surface 110.Multiple instructions
It can be separated from each other between the D1 of region or partially overlap, the liquid crystal display panel 111 can be respectively in multiple fingers
Show and show the mark image in the D1 of region respectively, the application does not limit this.
Optionally, multiple indicating area D1 can partially overlap or cover entire sensing area with the sensing region S1
Domain S1.For example, as shown in fig. 7, multiple indicating area D1 around the sensing region S1 be arranged, and respectively with the sensing
The part region S1 is overlapping, and multiple indicating area D1 are not overlapped between each other.Alternatively, as shown in figure 8, multiple instruction areas
Domain D1 can be located inside the sensing region S1.Alternatively, as shown in figure 9, multiple indicating area D1 respectively with the sense
It is overlapping to survey the part region S1, it is also mutually overlapping between multiple indicating area D1, with formed one it is biggish be enough to cover it is whole
The indicating area D1 of a sensing region S1.Alternatively, as shown in Figure 10, multiple indicating area D1 are located at the outer of sensing region S1
It encloses, and surrounds the sensing region S1.The pattern that the midpoint line of multiple indicating area D1 is formed can be circle, three
Angular, square, diamond shape or hexagon etc..The indicating area D1 can also be in center centered on the sensing region S1
It is symmetrical.
In the present embodiment, the receiving module 13 and instruction light source 14 are arranged at the liquid crystal display die set 11
Lower section, and be located in the viewing area 104.The instruction light source 14 is located at the periphery of receiving module 13, and surrounds the reception
Mould group 13 is configured.Optionally, the instruction light source 14 is centered on receiving module 13, and be centrosymmetric distribution.When described
Liquid crystal display die set 11 is in when putting out screen state, or is put out screen state when the liquid crystal display die set 11 is in and needed to carry out phase
When should sense, the back light 113 is closed, and the instruction light source 14 issues guidance light in the outer of liquid crystal display die set 11
Indicating area D1 is formed on surface 110.On driving circuit driving liquid crystal display panel 111 with the indicating area D1 face
Display pixel show preset mark image, to mark the position of the sensing region S1.The quantity of the instruction light source 14
Less than the quantity of the back light 113.So the power consumption of the instruction light source 14 can be less than the back light 113
Power consumption.The sensing region S1 is indicated in the case where putting out screen state by the lower instruction light source 14 of power consumption as a result, from without
Start the higher back light 113 of power consumption, there is energy-efficient beneficial effect.
It is understood that the instruction light source 14, receiving module 13 or/and emitting mould train 12 can be fitted in it is described
The bottom of display module 11.Alternatively, the instruction light source 14, receiving module 13 or/and emitting mould train 12 can also be by described
The other structures of electronic equipment 1, such as: the center or glue iron of mobile phone are fixed on the lower section of the display module 11.The application couple
It is not specifically limited in the fixed form of the instruction light source 14, receiving module 13 or/and emitting mould train 12.
In conclusion the application embodiment issues guidance light by the way that the instruction light source 14 is arranged, it is alternative described
The backlight light of back light 113 indicates the position where the sensing region S1, using the guidance light to guide use
Family cooperation sensing, saves power consumption, improves the battery durable ability of electronic equipment 1.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within spirit and principle.
Claims (15)
1. sensing device under a kind of screen characterized by comprising
Liquid crystal display die set, comprising:
Liquid crystal display panel, for showing picture；And
Backlight module, positioned at the lower section of the liquid crystal display panel, for being provided needed for display for the liquid crystal display panel
Backlight light；
Receiving module, for receiving the sensing signal returned via external object through at least partly described liquid crystal display die set,
To be sensed to the external object；And
One or more instruction light source, positioned at the lower section of the backlight module, the instruction light source is used to issue guidance light, when
The backlight module closes backlight light and the receiving module executes when sensing, and the guidance light that the instruction light source issues is saturating
It crosses the backlight module and is transferred to the liquid crystal display panel, the liquid crystal display panel is shown default using the guidance light
Mark image to indicate sensing region of the receiving module in the liquid crystal display die set.
2. as described in claim 1 shield lower sensing device, which is characterized in that the external object is finger print, described to connect
Mould group is received to be used to receive the sensing signal returned via the finger print and be converted to electric signal to obtain finger print information.
3. as described in claim 1 shield lower sensing device, which is characterized in that the sensing signal is sensing light beam, the sense
Survey light beam is infrared or near infrared light, and wave-length coverage is 750nm to 2000nm.
4. as described in claim 1 shield lower sensing device, which is characterized in that for showing picture in the liquid crystal display die set
Region be defined as viewing area, can not show that the region of picture is defined as non-display area, the sense in the liquid crystal display die set
Region is surveyed to be located in the viewing area.
5. as described in claim 1 shield lower sensing device, which is characterized in that on the outer surface for defining the liquid crystal display die set
The region for showing the preset mark image is indicating area, the indicating area and the sensing region partially overlap or
It is completely coincident；Or
The sensing region is less than the indicating area and is located within the indicating area；Or
The indicating area is located at the periphery of sensing region, and surrounds the sensing region.
6. as claimed in claim 5 shield lower sensing device, which is characterized in that sensing device further comprises driving under the screen
Circuit, the liquid crystal display panel have multiple display pixels, the driving circuit drive on the liquid crystal display panel with institute
The display pixel for stating indicating area face shows preset mark image.
7. as described in claim 1 shield lower sensing device, which is characterized in that the sensing signal is sensing light beam, via institute
The sensing light beam for stating external object return includes by the reflected sensing light beam of external object and entering saturating again after external object
The sensing light beam shot out.
8. as described in claim 1 shield lower sensing device, which is characterized in that the backlight module includes back light, leaded light
Plate and reflector plate, the back light are located at the side of the light guide plate, and for issuing backlight light, the backlight light enters
It is projected after mixing to liquid crystal display panel in light guide plate, the instruction light source is located at below the reflector plate, the reflector plate position
In the subjacent of light guide plate, the backlight light for will leak out from light guide plate is reflected back in light guide plate.
9. as described in claim 1 shield lower sensing device, which is characterized in that the reflector plate, which has guidance light, to be greater than
0.3% and the transmitance less than 5%.
10. as claimed in claim 8 shield lower sensing device, which is characterized in that the instruction light source has preset light emitting anger
Range is spent, the region that the reflector plate is located within the scope of the light emitting angle is defined as incident area, in the incident area not
Aperture, at least part of the guidance light are projected to the liquid crystal display panel after penetrating reflector plate from incident area；Or,
One or more loopholes are offered in the incident area, a part of guidance light is by the hole that penetrates across described
The liquid crystal display panel is projected to after reflector plate, guidance light described in another part penetrates the reflector plate without loophole
After be projected to the liquid crystal display panel.
11. as described in claim 1 shield lower sensing device, which is characterized in that further include emitting mould train, the emitting mould train is used
In sending sensing signal to the external object.
12. as claimed in claim 11 shield lower sensing device, which is characterized in that the liquid crystal display die set includes protection cap
Plate, the cover sheet are located at the outermost of liquid crystal display die set, and the liquid crystal display panel is located under the cover sheet
Side, the cover sheet include the upper surface and the lower surface being oppositely arranged, and the upper surface of the cover sheet is liquid crystal display mode
The outer surface of group, the emitting mould train are located at the lower section of the cover sheet, in the sensing light beam of the emitting mould train sending from
The lower surface of the cover sheet, which enters, carries out total reflection propagation inside cover sheet, propagate to sensing region by total reflection
In the position that external object is contacted with cover sheet upper surface diffusing reflection occurs for the sensing light beam, and then can appear the guarantor
Protecting cover plate is simultaneously received through at least partly liquid crystal display die set by the receiving module.
13. as claimed in claim 8 shield lower sensing device, which is characterized in that the general power of the back light is greater than described
The general power of one or more instruction light source, and when the back light is opened, the instruction light source is closed.
14. as claimed in claim 9 shield lower sensing device, which is characterized in that the reflector plate, which has guidance light, to be greater than
0.6% and the transmitance less than 3%.
15. a kind of electronic equipment, which is characterized in that including sensing device under the described in any item screens of such as claim 1 to 14, institute
Electronic equipment is stated for executing corresponding function according to the sensing result of sensing device under the screen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690993 | 2019-07-29 | ||
| CN2019106909932 | 2019-07-29 |
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| CN110516657A true CN110516657A (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921475111.2U Active CN210864743U (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under screen |
| CN201921478068.5U Active CN210864744U (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under screen |
| CN201910838857.3A Pending CN110458150A (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under a kind of screen |
| CN201910838849.9A Pending CN110516657A (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under a kind of screen |
| CN201910839358.6A Pending CN110458151A (en) | 2019-07-29 | 2019-09-05 | A kind of fingerprint acquisition apparatus and electronic equipment |
| CN201921475472.7U Active CN211427356U (en) | 2019-07-29 | 2019-09-05 | Fingerprint sensing device and electronic equipment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921475111.2U Active CN210864743U (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under screen |
| CN201921478068.5U Active CN210864744U (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under screen |
| CN201910838857.3A Pending CN110458150A (en) | 2019-07-29 | 2019-09-05 | Sensing device and electronic equipment under a kind of screen |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910839358.6A Pending CN110458151A (en) | 2019-07-29 | 2019-09-05 | A kind of fingerprint acquisition apparatus and electronic equipment |
| CN201921475472.7U Active CN211427356U (en) | 2019-07-29 | 2019-09-05 | Fingerprint sensing device and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061090A (en) * | 2019-12-16 | 2020-04-24 | 厦门天马微电子有限公司 | Backlight module and display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210864743U (en) * | 2019-07-29 | 2020-06-26 | 深圳阜时科技有限公司 | Sensing device and electronic equipment under screen |
| CN110850635B (en) * | 2019-11-28 | 2022-07-29 | 京东方科技集团股份有限公司 | Backlight module, manufacturing method and display device |
| CN111258099B (en) * | 2020-02-28 | 2022-07-26 | 京东方科技集团股份有限公司 | Display panel and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018082401A1 (en) * | 2016-11-03 | 2018-05-11 | 深圳信炜科技有限公司 | Display device and electronic device |
| CN109709700A (en) * | 2019-01-16 | 2019-05-03 | 柳州阜民科技有限公司 | A kind of display device and the electronic equipment using the display device |
| CN109791599A (en) * | 2016-09-17 | 2019-05-21 | 深圳市汇顶科技股份有限公司 | Optical sensor module under the screen that fingerprint incudes on screen |
| CN109791325A (en) * | 2017-03-07 | 2019-05-21 | 深圳市汇顶科技股份有限公司 | Optical sensor module under equipment with periphery tasks column viewing area and the LCD screen for shielding upper fingerprint sensing |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132946A (en) * | 2017-04-26 | 2017-09-05 | 深圳市万普拉斯科技有限公司 | Fingerprint recognition based reminding method, device, storage medium and computer equipment |
| CN107665079A (en) * | 2017-09-26 | 2018-02-06 | 深圳天珑无线科技有限公司 | The display methods and display device of a kind of user interface |
| CN107728979A (en) * | 2017-09-30 | 2018-02-23 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
| CN108183982A (en) * | 2017-12-26 | 2018-06-19 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109154961A (en) * | 2018-02-26 | 2019-01-04 | 深圳市汇顶科技股份有限公司 | Optics fingerprint sensing in LCD screen based on the optical imagery for utilizing lens-pinhole module and other optical designs |
| WO2020034119A1 (en) * | 2018-08-15 | 2020-02-20 | 深圳市汇顶科技股份有限公司 | Below-screen optical fingerprint recognition system, backlight module, display screen, and electronic device |
| CN109144643B (en) * | 2018-08-15 | 2021-06-15 | Oppo广东移动通信有限公司 | Fingerprint identification prompting method and device, storage medium and electronic equipment |
| CN109040370A (en) * | 2018-08-31 | 2018-12-18 | 努比亚技术有限公司 | A kind of fingerprint identification method, terminal and computer readable storage medium |
| CN209072544U (en) * | 2018-10-15 | 2019-07-05 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and terminal device with fingerprint identification function |
| WO2020077506A1 (en) * | 2018-10-15 | 2020-04-23 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition method and apparatus and terminal device with fingerprint recognition function |
| CN109564630A (en) * | 2018-11-09 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Liquid crystal display fingerprint mould group, fingerprint identification method, electronic equipment and storage medium |
| CN210864743U (en) * | 2019-07-29 | 2020-06-26 | 深圳阜时科技有限公司 | Sensing device and electronic equipment under screen |
-
2019
- 2019-09-05 CN CN201921475111.2U patent/CN210864743U/en active Active
- 2019-09-05 CN CN201921478068.5U patent/CN210864744U/en active Active
- 2019-09-05 CN CN201910838857.3A patent/CN110458150A/en active Pending
- 2019-09-05 CN CN201910838849.9A patent/CN110516657A/en active Pending
- 2019-09-05 CN CN201910839358.6A patent/CN110458151A/en active Pending
- 2019-09-05 CN CN201921475472.7U patent/CN211427356U/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109791599A (en) * | 2016-09-17 | 2019-05-21 | 深圳市汇顶科技股份有限公司 | Optical sensor module under the screen that fingerprint incudes on screen |
| WO2018082401A1 (en) * | 2016-11-03 | 2018-05-11 | 深圳信炜科技有限公司 | Display device and electronic device |
| CN109791325A (en) * | 2017-03-07 | 2019-05-21 | 深圳市汇顶科技股份有限公司 | Optical sensor module under equipment with periphery tasks column viewing area and the LCD screen for shielding upper fingerprint sensing |
| CN109709700A (en) * | 2019-01-16 | 2019-05-03 | 柳州阜民科技有限公司 | A kind of display device and the electronic equipment using the display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061090A (en) * | 2019-12-16 | 2020-04-24 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN111061090B (en) * | 2019-12-16 | 2022-11-01 | 厦门天马微电子有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210864744U (en) | 2020-06-26 |
| CN210864743U (en) | 2020-06-26 |
| CN110458150A (en) | 2019-11-15 |
| CN211427356U (en) | 2020-09-04 |
| CN110458151A (en) | 2019-11-15 |
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