CN208400147U - A kind of infrared-type fingerprint recognition mould group for below screen - Google Patents
A kind of infrared-type fingerprint recognition mould group for below screen Download PDFInfo
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- CN208400147U CN208400147U CN201820667184.0U CN201820667184U CN208400147U CN 208400147 U CN208400147 U CN 208400147U CN 201820667184 U CN201820667184 U CN 201820667184U CN 208400147 U CN208400147 U CN 208400147U
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Abstract
The utility model discloses a kind of infrared-type fingerprint recognition mould groups for below screen, including screen component, the light conducting member being installed in below screen component, the light conducting member bottom offers catoptric arrangement, the lens being installed in below catoptric arrangement, the RF transmitter and infrared sensor being installed in below lens, it is installed in several illuminated components of light conducting member side, the screen component includes glass cover-plate, the LCD liquid crystal display screen being set to below glass cover-plate, the light guide plate for being used to illuminate LCD liquid crystal display screen being set to below LCD liquid crystal display screen, through-hole is offered among the light guide plate.The utility model structure is simple, and at low cost, service life is high and good reliability, can eliminate the stain on the display screen as caused by light guide plate aperture simultaneously, can be used for common LCD touch display screen.
Description
Technical field
The present invention relates to a kind of fingerprint recognition mould groups, are to be related to a kind of be used for for mobile phone, plate, pen more specifically
Remember a kind of fingerprint recognition mould group below the screen of this computer, electronic lock, identification instrument.
Background technique
The fingerprint recognition mould group for mobile phone of existing prevalence on the market, is largely capacitive fingerprint sensing device component,
It forms electric field using silicon crystal unit microarray and conductive subcutaneous electrolyte, and the height fluctuating of fingerprint will lead to pressure between the two
There is different variations in difference, can realize accurate fingerprint measurement whereby.But since sensor surface is easy using silicon materials
Damage, causes service life to reduce.And the bumps between the gully and ridge for passing through fingerprint form fingerprint image, thus
Difficulty, finger discrimination rate are lower to be identified to dirty finger or wet finger etc..
In addition application No. is a kind of touchings using miniature LED sensing technology of the U.S. Patent Application Publication of US9570002
Display screen fingerprint identification technology is touched, as shown in Figure 1, this technology is equipped with small infrared ray hair on miniature light-emitting diode display
Emitter and sensor array, to replace the capacitive fingerprint sensing device component of present mainstream.The design can make touch panel and
Fingerprint sensor is integrated in one.Its advantage are as follows: it is very beautiful and practical, is hidden in below display screen, very concealed to be not easy
It is discovered, with display screen one integrated mass, is mainly used for the HOME of the design of Rimless screen, " disappearance " of next-generation smart phone
Key and Touch ID fingerprint sensor.But the technology is only used on the display screen of OLED, main cause are as follows: OLED (has
Machine is light-emitting LED), it is that full impregnated is self luminous, display screen does not need back lighting, therefore the region of fingerprint recognition imaging is without back
Light aperture.If using common LCD display, due to light guide plate (its bottom of the backlight module of illumination display screen
Some micro-structures of face) meeting is light-blocking to the fingerprint recognition mould group generation of lower section, therefore light guide plate is in fingerprint recognition optical imagery mould group
The position of surface need out a hole, allow the light of fingerprint lower epidermis can pass through backlight module and by lower section at
As lens carry out imaging identification.So since light guide plate position of opening cannot illuminate the LCD screen of surface, on display screen
It will appear an apparent stain.
Above-mentioned utility model uses the touch display screen technology of miniature LED sensing technology, the maximum technology of OLED screen
Problem is the restricted lifetime of organic material.Due to generate blue light OLED material than the material degradation of other colors obtain faster, because
This blue laser output can be fewer than the light of other colors.In addition water can be improved close with the organic material of transient breakdown display, therefore
Envelope technique is of great significance to actual production.OLED screen (such as document or net when display has the image of white background
Stand), it can very power consumption.A further disadvantage is that burn-in problem: the difference shown on the screen due to each pixel, each position
Aging speed just has difference.The production difficulty of this panel is very high, and expensive.
Utility model content
To overcome drawbacks described above in the prior art, the utility model is by taking mobile phone is applied as an example, and the one kind provided is for hand
Infrared-type fingerprint recognition mould group below machine screen.Its is at low cost, the service life is high and good reliability, can eliminate simultaneously
Stain on the display screen as caused by light guide plate aperture can be used for common LCD touch display screen.
To achieve the above object, the utility model provides a kind of infrared-type fingerprint recognition mould for below mobile phone screen
Group, including screen component, the light conducting member being installed in below screen component, the light conducting member bottom offer catoptric arrangement,
The lens being installed in below catoptric arrangement, the RF transmitter and infrared sensor being installed in below lens, are installed in leaded light
Several illuminated components of component side, the screen component includes glass cover-plate, the LCD liquid crystal being set to below glass cover-plate
Display screen, be set to below LCD liquid crystal display screen for illuminating the light guide plate of LCD liquid crystal display screen, among the light guide plate
Offer through-hole, the catoptric arrangement, which is set, to be independently placed in light conducting member bottom or be set to light conducting member bottom and and light conducting member
It is integrally formed, the catoptric arrangement includes inclined fully reflecting surface from interior top to outer lower side.
Preferably, the fully reflecting surface includes multiple miniature sloping reflectors, the miniature sloping reflector
It is formed including a bit of horizontal plane and inclined surface, to transmit simultaneous total-reflection type micro-structure combination.
Preferably, the screen component includes glass cover-plate, the LCD liquid crystal display being set to below glass cover-plate
Shield, the light guide plate for being used to illuminate LCD liquid crystal display screen being set to below LCD liquid crystal display screen, is opened up among the light guide plate
There is through-hole.
Preferably, the light conducting member is circle, and it may be ellipse, rectangular, triangle, polygon or not
Regular figure.
Preferably, the illuminated component is four LED light sources, it may be several laser light sources, several
White LED light source and the combination of IR LED light source or several white LED light sources and color LED light source combination.
Compared with prior art, the utility model has the beneficial effects that:
The utility model includes the light conducting member being installed in below screen component including screen component, the light conducting member
Bottom offers catoptric arrangement, the lens being installed in below catoptric arrangement, the RF transmitter being installed in below lens and red
Outer sensor is installed in several illuminated components of light conducting member side, and the screen component includes glass cover-plate, is set to glass
LCD liquid crystal display screen below glass cover board is set to below LCD liquid crystal display screen and is used to illuminate leading for LCD liquid crystal display screen
Tabula rasa offers through-hole among the light guide plate.The utility model structure is simple, and at low cost, service life is high and good reliability,
It can eliminate the stain on the display screen as caused by light guide plate aperture simultaneously, can be used for common LCD touch display screen.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of touching using miniature LED sensing technology of the U.S. Patent Application Publication application No. is US9570002
Touch the structural schematic diagram of display screen fingerprint identification technology；
Fig. 2 is a kind of laser type fingerprint recognition mould group and screen for below mobile phone screen that the utility model provides in fact
The structural schematic diagram of component cooperation.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, Bu Shuyu
The range of the utility model protection.
The embodiments of the present invention provide a kind of infrared-type fingerprint recognition mould group for below mobile phone screen.
Referring to FIG. 2, the utility model provides a kind of infrared-type fingerprint recognition mould group for below mobile phone screen, packet
Screen component is included, the light conducting member 1740 being installed in below screen component, 1740 bottom of light conducting member offers reflection knot
Structure 1742, the side of the light conducting member 1740 are light projection surface 1741, are installed in the lens 1750 of 1742 lower section of reflection knot,
It is installed in the RF transmitter 1760 and infrared sensor 1770 of 1750 lower section of lens, is installed in 1740 side of light conducting member
Several illuminated components 1790, the screen component include glass cover-plate 1710, and glass cover-plate 1710 includes being set to its top
For placing the glass cover-plate upper surface 1711 of finger sensing, it is set to the LCD liquid crystal display screen of 1710 lower section of glass cover-plate
1720, it is set to the light guide plate 1730 for being used to illuminate LCD liquid crystal display screen 1720 of 1720 lower section of LCD liquid crystal display screen, it is described
Offer through-hole 1731 among light guide plate 1730, in the present embodiment, the catoptric arrangement 1742 is set to 1740 bottoms of guide-lighting structure
Portion is simultaneously integrally formed with light conducting member 1740, can also be set and is independently placed in 1740 bottom of light conducting member, the catoptric arrangement
1742 include inclined fully reflecting surface from interior top to outer lower side.
The fully reflecting surface includes multiple miniature sloping reflectors, and the miniature sloping reflector includes a bit of
Horizontal plane and inclined surface composition, to transmit and the combination of total-reflection type micro-structure, every segment inclined surface is by illuminated component
1790 incident light carry out total reflection turnover and light distribution, and the fingerprint following table of 1710 top of glass cover-plate is located at for Uniform Illumination
Skin, and the segment horizontal plane in each laciniation can then transmit lower section miniature RF transmitter 1760 with it is infrared
The infrared light of sensor 1770 along vertical direction, the infrared signature for fingerprint identify.
The infrared ray for the vertical direction that miniature RF transmitter 1760 issues from bottom substrate, by lens
1750, after the glass cover-plate upper surface 1710 of light conducting member 1740, LCD liquid crystal display screen 1720 and the touch screen, enter
It is mapped to fingerprint lower epidermis.The infrared signature signal of fingerprint lower epidermis different location gully texture structure is passed by opposite direction
It is defeated to being similarly positioned on the miniature infrared sensor 1770 on bottom substrate, it is different according to the infrared signature signal of different location,
The textural characteristics situation that may determine that the fingerprint, to be identified.
The light conducting member 1740 is circle, may be ellipse, rectangular, triangle, polygon or irregular component
Shape.
The illuminated component 1790 is four LED light sources, may be several laser light sources, several white light LEDs
Light source and the combination of IR LED light source or several white LED light sources and color LED light source combination, the quantity of light source can be according to reality
Situation selection.
In conclusion the utility model structure is simple, at low cost, service life is high and good reliability, can disappear simultaneously
Except the stain on the display screen as caused by light guide plate aperture, it can be used for common LCD touch display screen.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (5)
1. a kind of infrared-type fingerprint recognition mould group for below screen, it is characterised in that: including screen component, be installed in screen
Light conducting member below curtain component, the light conducting member bottom offer catoptric arrangement, are installed with below the catoptric arrangement
Mirror, the RF transmitter and infrared sensor being installed in below lens are installed in the illuminated component of light conducting member side, described
Catoptric arrangement, which is set, to be independently placed in light conducting member bottom or is set to light conducting member bottom and is integrally formed with light conducting member, described anti-
Penetrating structure includes inclined fully reflecting surface from interior top to outer lower side.
2. a kind of infrared-type fingerprint recognition mould group for below screen according to claim 1, it is characterised in that: institute
Stating fully reflecting surface includes multiple miniature sloping reflectors, and the miniature sloping reflector includes a bit of horizontal plane and inclination
Surface composition, to transmit simultaneous total-reflection type micro-structure combination.
3. a kind of infrared-type fingerprint recognition mould group for below screen according to claim 1, it is characterised in that: institute
State illuminated component be several LED light sources, several laser light sources, several white LED light sources and IR LED light source combination or
Several white LED light sources and color LED light source combination.
4. a kind of infrared-type fingerprint recognition mould group for below screen according to claim 1, it is characterised in that: institute
Stating screen component includes glass cover-plate, and the LCD liquid crystal display screen being set to below glass cover-plate is set to LCD liquid crystal display screen
Lower section for illuminating the light guide plate of LCD liquid crystal display screen, offer through-hole among the light guide plate.
5. a kind of fingerprint recognition mould group for below screen according to claim 1, it is characterised in that: the leaded light structure
Part is circle, ellipse, rectangular, triangle, polygon or irregular figure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667184.0U CN208400147U (en) | 2018-05-03 | 2018-05-03 | A kind of infrared-type fingerprint recognition mould group for below screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667184.0U CN208400147U (en) | 2018-05-03 | 2018-05-03 | A kind of infrared-type fingerprint recognition mould group for below screen |
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| Publication Number | Publication Date |
|---|---|
| CN208400147U true CN208400147U (en) | 2019-01-18 |
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| CN201820667184.0U Active CN208400147U (en) | 2018-05-03 | 2018-05-03 | A kind of infrared-type fingerprint recognition mould group for below screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613756A (en) * | 2019-01-29 | 2019-04-12 | 华勤通讯技术有限公司 | LCD display, electronic equipment and control system |
| CN110084090A (en) * | 2019-01-22 | 2019-08-02 | 东莞市美光达光学科技有限公司 | Fingerprint recognition mould group under a kind of optical profile type screen |
| CN110187537A (en) * | 2019-05-09 | 2019-08-30 | 维沃移动通信有限公司 | A kind of terminal |
| CN110764309A (en) * | 2019-10-31 | 2020-02-07 | 深圳市德仓科技有限公司 | Backlight module, display screen and terminal |
| CN111208665A (en) * | 2019-09-16 | 2020-05-29 | 神盾股份有限公司 | Backlight module applied to display panel |
| CN110084090B (en) * | 2019-01-22 | 2024-04-30 | 东莞市美光达光学科技有限公司 | Optical under-screen fingerprint identification module |
-
2018
- 2018-05-03 CN CN201820667184.0U patent/CN208400147U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110084090A (en) * | 2019-01-22 | 2019-08-02 | 东莞市美光达光学科技有限公司 | Fingerprint recognition mould group under a kind of optical profile type screen |
| CN110084090B (en) * | 2019-01-22 | 2024-04-30 | 东莞市美光达光学科技有限公司 | Optical under-screen fingerprint identification module |
| CN109613756A (en) * | 2019-01-29 | 2019-04-12 | 华勤通讯技术有限公司 | LCD display, electronic equipment and control system |
| CN109613756B (en) * | 2019-01-29 | 2021-08-10 | 华勤技术股份有限公司 | LCD display screen, electronic equipment and control system |
| CN110187537A (en) * | 2019-05-09 | 2019-08-30 | 维沃移动通信有限公司 | A kind of terminal |
| CN111208665A (en) * | 2019-09-16 | 2020-05-29 | 神盾股份有限公司 | Backlight module applied to display panel |
| CN110764309A (en) * | 2019-10-31 | 2020-02-07 | 深圳市德仓科技有限公司 | Backlight module, display screen and terminal |
| CN110764309B (en) * | 2019-10-31 | 2022-07-15 | 深圳市德仓科技有限公司 | Backlight module, display screen and terminal |
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