CN110516591A - Fingerprint recognition terminal device based on optical sensor - Google Patents
Fingerprint recognition terminal device based on optical sensor Download PDFInfo
- Publication number
- CN110516591A CN110516591A CN201910793394.3A CN201910793394A CN110516591A CN 110516591 A CN110516591 A CN 110516591A CN 201910793394 A CN201910793394 A CN 201910793394A CN 110516591 A CN110516591 A CN 110516591A
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- Prior art keywords
- fingerprint
- backlight module
- terminal device
- fingerprint recognition
- recognition terminal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of fingerprint recognition terminal devices, including glass cover-plate, LCD panel, infrared light fingerprint Identification sensor and the backlight module that successively lamination is arranged from top to bottom；Wherein, backlight module is used to reflective bio fingerprint infrared signal to infrared light fingerprint Identification sensor.Backlight module of the invention does not need the lower section that infrared light fingerprint Identification sensor is arranged in backlight module, while realizing fingerprint identification function identification in the screen of fingerprint recognition terminal device, and do not influence the display image quality of fingerprint recognition terminal device.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of fingerprint recognition terminals for fingerprint recognition in LCD screen
Equipment.
Background technique
Fingerprint sensing and matching are a kind of reliable and widely used technologies.The common methods of fingerprint recognition are related to scanning sample
This fingerprint or its image and the image and/or specific characteristic for storing fingerprint image, can by the feature of sample fingerprint with deposited
It is that the information of the reference fingerprint in database is compared, to determine the correct identification of user, such as verification purposes.It is special
Not, (in display) fingerprint recognition by its ease for operation and multifunctionality and is suitable for compact portable in screen at present
Formula electronic equipment, and become to become more and more popular.
Fingerprint recognition shows that equipment obviously shows that equipment has bigger use than fingerprint recognition in OLED screen in LCD screen
Scene domain and better cost advantage, still, in the screen based on LCD display fingerprint recognition show equipment not yet completely at
It is ripe, it especially cannot be considered in terms of fingerprint recognition signal effectively penetrating in LCD mould group and Precise collection.
Fingerprint recognition is shown in equipment in the screen of LCD display, as shown in Figure 1, by identifying that it is aobvious that pressing is covered on LCD
The fingerprint on glass cover-plate 140 in display screen；However the optical signalling of fingerprint is at least through LCD display and glass for identification
Glass cover board 140, and since LCD display is made of LCD mould group 130 and backlight module 120, in addition glass cover-plate has certain
Thickness.Therefore, during through LCD mould group, backlight module and glass cover-plate more serious folding can occur for optical signalling
It penetrates and scatters, or even total reflection.In addition, carrying biological fingerprint when fingerprint identification unit 110 to be placed below backlight module
The infrared light of information can not penetrate LCD mould group, backlight module and glass cover-plate and reach fingerprint identification unit 110, cannot achieve
Fingerprint recognition accurately identifies.United States Patent (USP) US16028399 and US16032048 etc. are used, and fingerprint identification unit is arranged
Design below backlight module, the design have become the natural mode realized and shield lower fingerprint recognition, but fingerprint recognition
Accuracy really still has certain problem.
Therefore, in the screen based on LCD display fingerprint recognition realization, need the whole design to backlight module to improve.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of fingerprint recognition terminals for fingerprint recognition in LCD screen to set
It is standby, enable to infrared light fingerprint recognition signal simultaneously accurate based on effectively penetrating on optical sensor fingerprint recognition terminal device
It collects, while not influencing the display image quality of LCD display.
In order to solve the above technical problems, being set one technical scheme adopted by the invention is that providing a kind of fingerprint recognition terminal
It is standby comprising glass cover-plate, LCD panel, infrared light fingerprint Identification sensor and the back that successively lamination is arranged from top to bottom
Optical mode group；Wherein, backlight module is used to reflective bio fingerprint infrared signal to infrared light fingerprint Identification sensor.The backlight mould
Group includes light source；The light guide plate of the light source side is set；Reflector plate below the light guide plate is set；It is arranged described
Diffusion barrier above light guide plate；And the prismatic lens above the diffusion barrier are set.
Backlight module of the invention does not need the lower section that infrared light fingerprint Identification sensor is arranged in backlight module, together
Fingerprint identification function identifies in the screen of Shi Shixian fingerprint recognition terminal device, and does not influence the display of fingerprint recognition terminal device
Image quality.The infrared signal for carrying biological fingerprint information is reflected by backlight module, and effectively by infrared light fingerprint recognition
Sensor accurately acquires, while keeping the light emission luminance and the uniformity of the visible light source of backlight module.In addition, entire backlight mould
Production, packaging technology and the structure of group are all simpler, and structural stability is high.
In a preferred embodiment, the backlight module further includes reflectance coating；The reflectance coating is arranged described
The upper surface of backlight module, and it is corresponding with the position of infrared light fingerprint Identification sensor, with reflective bio fingerprint infrared signal
To infrared light fingerprint Identification sensor.The reflectance coating reflects infrared light, while penetrating visible light.
In a preferred embodiment, the fingerprint recognition terminal device further includes infrared transparent light shield layer；It is described infrared
Transparent light shield layer is set in the backlight module or between the backlight module and the infrared light fingerprint Identification sensor,
To form infrared signal channel so that the reflecting layer of the backlight module biological fingerprint infrared signal is reflexed to it is described
Infrared light fingerprint Identification sensor.
In a preferred embodiment, the backlight module further includes reflectance coating；The reflectance coating setting is being spread
The upper surface or lower surface of film, and it is corresponding with the position of infrared light fingerprint Identification sensor；Alternatively, the reflectance coating setting
In the upper surface or lower surface of light guide plate, and it is corresponding with the position of infrared light fingerprint Identification sensor.
In a preferred embodiment, the fingerprint recognition terminal device further includes infra red light emitter, red for emitting
Outer light is to the fingerprint pressing area of the glass cover-plate.
In a preferred embodiment, the infrared light fingerprint Identification sensor and the infra red light emitter are integrated
Setting；Or the infra red light emitter is arranged on the backlight module close to the infrared light fingerprint Identification sensor extremely
Few side.
In a preferred embodiment, the infrared light fingerprint Identification sensor insertion is arranged in the LCD panel
Lower surface.
Detailed description of the invention
The present invention and its advantage will be provided by way of non-limiting example by research, and by shown in appended attached drawing
Particular implementation detailed description and better understand, in which:
Fig. 1 is fingerprint recognition display device structure figure in the screen of the LCD display of the prior art.
Fig. 2 is the explosive view of the fingerprint recognition terminal device of the embodiment of the present invention 1.
Fig. 3 is another explosive view of the fingerprint recognition terminal device of the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of the fingerprint recognition terminal device of the embodiment of the present invention 1.
Fig. 5 is the explosive view of the fingerprint recognition terminal device of the embodiment of the present invention 2.
Fig. 6 is the explosive view of the fingerprint recognition terminal device of the embodiment of the present invention 3.
Specific embodiment
Please refer to the schema in attached drawing, wherein identical component symbol represents identical component, the principle of the present invention be with
Implement to illustrate in an environment appropriate.The following description be based on exemplified specific embodiments of the present invention,
It is not construed as the limitation present invention other specific embodiments not detailed herein.
The word " embodiment " used in this specification means serving as example, example or illustration.In addition, this specification and institute
The article " one " used in attached claim can generally be interpreted to mean " one or more ", unless specified otherwise or
Guiding singular is understood from context.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.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.
Furthermore unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" can wrap
It includes the first and second features directly to contact, also may include that the first and second features are not direct contacts but pass through between them
Other characterisation contact.Moreover, fisrt feature includes fisrt feature above the second feature " above ", " above " and " above "
Right above two features and oblique upper, or indicate that first feature horizontal height is higher than second feature.Fisrt feature is in second feature " it
Under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or indicates first feature horizontal height
Less than second feature.
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, hereinafter the component of specific examples and setting are described.Certainly, they are merely illustrative, and
It is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter, this
Kind repetition is for purposes of simplicity and clarity, itself not indicate the pass between discussed various embodiments and/or setting
System.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can anticipate
Know the application of other techniques and/or the use of other materials.
Embodiment 1
Firstly, being illustrated by Fig. 2-4 with regard to the backlight module of the embodiment of the present invention 1.According to the embodiment of the present invention 1
Backlight module, as shown in Figures 2 and 3, a kind of fingerprint recognition terminal device comprising from top to bottom successively lamination setting glass
Glass cover board 101, LCD panel 102, infrared light fingerprint Identification sensor 103 and backlight module 104；Wherein, backlight module
104 are used to reflective bio fingerprint infrared signal to infrared light fingerprint Identification sensor 103.The backlight module 104 includes light source
231；The light guide plate 230 of 231 side of light source is set；Reflector plate 240 below the light guide plate 230 is set；Setting
Diffusion barrier 220 above the light guide plate 230；And the prismatic lens 210 of 220 top of diffusion barrier are set.
The backlight module 104 of the present embodiment does not need for infrared light fingerprint Identification sensor 103 to be arranged in backlight module
104 lower section.The infrared signal for carrying biological fingerprint information is reflected by backlight module 104, and effectively by infrared light fingerprint
Identification sensor 103 accurately acquires, while keeping the light emission luminance and the uniformity of the visible light source 231 of backlight module 104.Separately
Outside, production, packaging technology and the structure of entire backlight module 104 are all simpler, and structural stability is high.
As shown in figure 4, the backlight module 104 further includes reflectance coating 105；The reflectance coating 105 is arranged described
The upper surface of backlight module 104, and it is corresponding with the position of infrared light fingerprint Identification sensor 103, it is red with reflective bio fingerprint
External signal L1 is to infrared light fingerprint Identification sensor 103.The reflectance coating 105 reflects infrared light, while penetrating visible light, protects
The light emission luminance and the uniformity of the visible light source of backlight module 104 have been demonstrate,proved, while having realized (in display) fingerprint recognition in screen.
The fingerprint recognition terminal device further includes infra red light emitter, for emitting infrared light to the glass cover-plate
101 fingerprint pressing area.
The infrared light fingerprint Identification sensor 103 and the integrated setting of the infra red light emitter.
Embodiment 2
Referring to figure 5., be the embodiment of the present invention 2 backlight module 104 explosive view.Below only with regard to embodiment 2 with
The different place of embodiment 1 is illustrated, and about similarity, details are not described herein.
The reflectance coating 105 is arranged in the upper surface of light guide plate 230, and with infrared light fingerprint Identification sensor 103
Position is corresponding.Meanwhile the diffusion barrier 220 and the prismatic lens 210 be arranged it is jagged, and with infrared light fingerprint Identification sensor
103 position is corresponding, to form infrared signal channel.
The fingerprint recognition terminal device further includes infrared transparent light shield layer 106；The infrared transparent light shield layer 106 is arranged
In in the backlight module 104, specifically, it is arranged on light guide plate 230, to form infrared signal channel, so that described
Biological fingerprint infrared signal is reflexed to the infrared light fingerprint Identification sensor by the reflecting layer 240 of backlight module 104
103。
Embodiment 3
Fig. 6 is please referred to, is the topology view of the backlight module 104 of the embodiment of the present invention 3.Below only with regard to embodiment 3 with
The different place of embodiment 2 is illustrated, and about similarity, details are not described herein.
The infra red light emitter 107 is arranged on the backlight module 104 to be sensed close to the infrared light fingerprint recognition
Two opposite sides of device 103.
Although hereinbefore by reference to some embodiments, invention has been described, of the invention not departing from
In the case where range, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not
There are structural conflict, the various features in presently disclosed each embodiment can be combined with each other by any way
It uses, the description for not carrying out exhaustive to the case where these combinations in the present specification is for omission length and to economize on resources
Consider.Therefore, the invention is not limited to specific embodiments disclosed herein, but including falling within the scope of the appended claims
All technical solutions.
Claims (10)
1. a kind of fingerprint recognition terminal device, which is characterized in that including from top to bottom successively lamination setting glass cover-plate, LCD
Liquid crystal display panel, infrared light fingerprint Identification sensor and backlight module；
Wherein, backlight module is used to reflective bio fingerprint infrared signal to infrared light fingerprint Identification sensor.
2. fingerprint recognition terminal device according to claim 1, it is characterised in that: the backlight module includes light source；If
Set the light guide plate in the light source side；Reflector plate below the light guide plate is set；It is arranged in above the light guide plate
Diffusion barrier；And the prismatic lens above the diffusion barrier are set.
3. fingerprint recognition terminal device according to claim 2, it is characterised in that: the fingerprint recognition terminal device also wraps
Include infrared transparent light shield layer；The infrared transparent light shield layer is set in the backlight module or the backlight module and described
Between infrared light fingerprint Identification sensor, to form infrared signal channel, so that the reflecting layer of the backlight module will
Biological fingerprint infrared signal reflexes to the infrared light fingerprint Identification sensor.
4. fingerprint recognition terminal device according to claim 2, it is characterised in that: the backlight module further includes that reflection applies
Layer；The upper surface of the backlight module is arranged in the reflectance coating, and opposite with the position of infrared light fingerprint Identification sensor
It answers, with reflective bio fingerprint infrared signal to infrared light fingerprint Identification sensor.
5. fingerprint recognition terminal device according to claim 2, it is characterised in that: the backlight module further includes that reflection applies
Layer；The upper surface or lower surface of diffusion barrier, and the position phase with infrared light fingerprint Identification sensor is arranged in the reflectance coating
It is corresponding.
6. fingerprint recognition terminal device according to claim 2, it is characterised in that: the reflectance coating is arranged in light guide plate
Upper surface or lower surface, and it is corresponding with the position of infrared light fingerprint Identification sensor.
7. according to any fingerprint recognition terminal device of claim 4-6, it is characterised in that: the reflectance coating reflection is red
Outer light, while penetrating visible light.
8. fingerprint recognition terminal device according to claim 1, it is characterised in that: the fingerprint recognition terminal device also wraps
Infra red light emitter is included, for emitting infrared light to the fingerprint pressing area of the glass cover-plate.
9. fingerprint recognition terminal device according to claim 7, it is characterised in that: the infrared light fingerprint Identification sensor
With the integrated setting of the infra red light emitter；Or the infra red light emitter is arranged on the backlight module close to institute
State at least side of infrared light fingerprint Identification sensor.
10. fingerprint recognition terminal device according to claim 1, it is characterised in that: the infrared light fingerprint recognition sensing
Device is embedded in the lower surface that the LCD panel is arranged in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793394.3A CN110516591B (en) | 2019-08-27 | 2019-08-27 | Fingerprint identification terminal equipment based on optical sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793394.3A CN110516591B (en) | 2019-08-27 | 2019-08-27 | Fingerprint identification terminal equipment based on optical sensor |
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| Publication Number | Publication Date |
|---|---|
| CN110516591A true CN110516591A (en) | 2019-11-29 |
| CN110516591B CN110516591B (en) | 2023-06-20 |
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ID=68628017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910793394.3A Active CN110516591B (en) | 2019-08-27 | 2019-08-27 | Fingerprint identification terminal equipment based on optical sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062336A (en) * | 2019-12-19 | 2020-04-24 | 深圳市隆利科技股份有限公司 | Fingerprint identification terminal equipment |
| CN111160324A (en) * | 2020-02-26 | 2020-05-15 | 武汉华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
| CN111242039A (en) * | 2020-01-15 | 2020-06-05 | 深圳市隆利科技股份有限公司 | Fingerprint identification electronic equipment |
| CN111753655A (en) * | 2020-05-18 | 2020-10-09 | 深圳市隆利科技股份有限公司 | Electronic equipment for full screen fingerprint identification |
| CN115249368A (en) * | 2021-04-28 | 2022-10-28 | 豪威科技股份有限公司 | Optical fingerprint sensor for LCD panel |
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| US20170344785A1 (en) * | 2016-05-31 | 2017-11-30 | Tpk Touch Solutions (Xiamen) Inc. | Fingerprint identification apparatus |
| CN109564628A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method, device and the terminal device with fingerprint identification function |
| CN109709713A (en) * | 2019-01-16 | 2019-05-03 | 柳州阜民科技有限公司 | A kind of backlight module, display module and electronic equipment |
| CN208969685U (en) * | 2018-10-15 | 2019-06-11 | 深圳市汇顶科技股份有限公司 | Shield lower fingerprint identification device and electronic equipment |
| CN110110701A (en) * | 2019-05-21 | 2019-08-09 | 深圳市隆利科技股份有限公司 | A kind of fingerprint recognition mould group |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170344785A1 (en) * | 2016-05-31 | 2017-11-30 | Tpk Touch Solutions (Xiamen) Inc. | Fingerprint identification apparatus |
| CN109564628A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method, device and the terminal device with fingerprint identification function |
| CN208969685U (en) * | 2018-10-15 | 2019-06-11 | 深圳市汇顶科技股份有限公司 | Shield lower fingerprint identification device and electronic equipment |
| CN109709713A (en) * | 2019-01-16 | 2019-05-03 | 柳州阜民科技有限公司 | A kind of backlight module, display module and electronic equipment |
| CN110110701A (en) * | 2019-05-21 | 2019-08-09 | 深圳市隆利科技股份有限公司 | A kind of fingerprint recognition mould group |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062336A (en) * | 2019-12-19 | 2020-04-24 | 深圳市隆利科技股份有限公司 | Fingerprint identification terminal equipment |
| CN111242039A (en) * | 2020-01-15 | 2020-06-05 | 深圳市隆利科技股份有限公司 | Fingerprint identification electronic equipment |
| CN111160324A (en) * | 2020-02-26 | 2020-05-15 | 武汉华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
| CN111753655A (en) * | 2020-05-18 | 2020-10-09 | 深圳市隆利科技股份有限公司 | Electronic equipment for full screen fingerprint identification |
| CN115249368A (en) * | 2021-04-28 | 2022-10-28 | 豪威科技股份有限公司 | Optical fingerprint sensor for LCD panel |
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| CN110516591B (en) | 2023-06-20 |
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