CN208569648U - A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen - Google Patents
A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen Download PDFInfo
- Publication number
- CN208569648U CN208569648U CN201820801454.2U CN201820801454U CN208569648U CN 208569648 U CN208569648 U CN 208569648U CN 201820801454 U CN201820801454 U CN 201820801454U CN 208569648 U CN208569648 U CN 208569648U
- Authority
- CN
- China
- Prior art keywords
- imaging
- screen
- light
- hidden
- display screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Image Input (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses a kind of light source direct projection light adjusting type fingerprint recognition mould groups being hidden in below screen, including miniature backlight illuminating system and the imaging system being installed in below miniature backlight illuminating system, the screen component being installed in above miniature backlight illuminating system, 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, guide-lighting region is offered among the light guide plate, the miniature backlight illuminating system includes for luminous illuminated component, the imaging system includes the imaging len for imaging, the imaging sensor for being used to receive image being installed in below imaging len.The utility model structure is simple, and at low cost, service life is high and good reliability, can eliminate stain caused by local luminance is insufficient on the display screen formed as light guide plate aperture simultaneously, can be used for common LCD touch display screen.
Description
Technical field
The utility model relates to a kind of fingerprint recognition mould groups, more specifically, are related to a kind of be hidden in below screen
Light source direct projection light adjusting type fingerprint recognition mould group.
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
The existing different variation in poor mountain 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
LCD liquid crystal display screen fingerprint identification technology is touched, is illustrated in fig. 1 shown below, this technology is equipped with small on miniature light-emitting diode display
RF transmitter and sensor array, to replace the capacitive fingerprint sensing device component of present mainstream.The design can make to touch
It touches panel and fingerprint sensor is integrated in one.Its advantage are as follows: it is very beautiful and practical, is hidden under LCD liquid crystal display screen
Side, it is very concealed to be not easy to be discovered, with LCD liquid crystal display screen one integrated mass, it is mainly used for the boundless of next-generation smart phone
The design of frame screen, the HOME key of " disappearance " and Touch ID fingerprint sensor.But the technology is only used for the LCD liquid crystal of OLED
On display screen, main cause are as follows: OLED (organic light emission LED) is that full impregnated is self luminous, and LCD liquid crystal display screen does not need to carry on the back
Optical illumination, therefore the region of fingerprint recognition imaging is without backlight aperture.If using common LCDLCD liquid crystal display, that
Since the light guide plate (some micro-structures of its bottom surface) of the backlight module of illumination LCD liquid crystal display screen can be to the fingerprint of lower section
It is light-blocking to identify that mould group generates, therefore light guide plate needs out a hole in the position of the surface of fingerprint recognition optical imagery mould group,
It allows the light of fingerprint lower epidermis that can pass through backlight module and imaging identification is carried out by the imaging len of lower section.So due to
Light guide plate position of opening cannot illuminate the LCD screen of surface, and existing one of meeting mountain is apparent black in LCD liquid crystal display screen
Point.
Above-mentioned utility model uses the touch LCD liquid crystal display screen technology of miniature LED sensing technology, and the OLED screen is maximum
The technical issues of be organic material restricted lifetime.OLED material due to generating blue light obtains more than the material degradation of other colors
Fastly, therefore the defeated mountain of blue light can be fewer than the light of other colors.In addition therefore water, can be changed with the organic material of transient breakdown display
Into sealing technology be of great significance to actual production.OLED screen (such as document when display has the image of white background
Or website), it can very power consumption.A further disadvantage is that burn-in problem: the difference shown on the screen due to each pixel, each
The aging speed of position 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 provides one kind and is hidden in screen so that mobile phone is applied as an example
The light source direct projection of curtain lower section is withered light formula fingerprint recognition mould group, and at low cost, service life is high and good reliability, can be disappeared 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.
To achieve the above object, the utility model provides a kind of light source direct projection being hidden in below screen and withers the knowledge of light formula fingerprint
Other mould group, including screen component are installed in miniature backlight illuminating system below screen component and are installed in miniature back lighting
Imaging system below system, the screen component includes fingerprint identification region, and glass cover-plate is set to below glass cover-plate
LCD liquid crystal display screen, the light guide plate for being used to illuminate LCD liquid crystal display screen being set to below LCD liquid crystal display screen, the leaded light
Guide-lighting region is offered among plate, the light guide plate is set to above illuminated component, and the fingerprint identification region is set to glass
At the top of cover board, the miniature backlight illuminating system includes the illuminated component for generating light, and the illuminated component is set to finger
Below line identification region, the size of the illuminated component can at least cover fingerprint identification region, and the imaging system includes using
In the imaging len of imaging, the infrared filter being installed in below imaging len is installed in below infrared filter and is used to connect
The imaging sensor for receiving image, be installed on the outside of imaging len and infrared filter for protect imaging len and with infrared filtering
The shell of piece, the cover top portion offer horn mouth.
Preferably, the illuminated component is OLED.
Preferably, the illuminated component includes flexible circuit board and the miniature white light that is installed on flexible circuit board
LED array.
Preferably, the imaging len is optical imaging lens, the optical imaging lens are that Fresnel curved surface is saturating
Mirror, also narrow eyes into a slit can be aspherics lens or diffraction optics toroidal lens.
For two or more also can be set preferably, the quantity of the imaging len is one.
Preferably, the leaded light region is the guide-lighting through-hole being provided on light guide plate, also can be set in leaded light
Transparent flat or curved surface on plate.
Compared with prior art, the utility model has the beneficial effects that:
The utility model includes miniature backlight illuminating system and the imaging system that is installed in below miniature backlight illuminating system,
The screen component being installed in above miniature backlight illuminating system, the screen component includes glass cover-plate, is set to glass cover-plate
The LCD liquid crystal display screen of lower section, the light guide plate for being used to illuminate LCD liquid crystal display screen being set to below LCD liquid crystal display screen, institute
State and offer guide-lighting region among light guide plate, the miniature backlight illuminating system include for luminous illuminated component, it is described at
As system includes the imaging len for imaging, be installed in below imaging len for receiving the imaging sensor of image.This
Utility model structure is simple, and at low cost, service life is high and good reliability, can eliminate since light guide plate aperture causes simultaneously
LCD liquid crystal display screen on stain, can be used for common LCD and touch LCD liquid crystal 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, under the premise of not paying mountain creative work, 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 LCD liquid crystal display screen fingerprint identification technology；
Fig. 2 be the utility model embodiment one provide a kind of light source direct projection being hidden in below screen wither light formula fingerprint knowledge
The structural schematic diagram of other mould group and the cooperation of screen component；
Fig. 3 is that a kind of light source direct projection light adjusting type fingerprint being hidden in below screen that the utility model embodiment two provides is known
The structural schematic diagram of other mould group and the cooperation of screen component.
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, those of ordinary skill in the art every other embodiment obtained, Bu Shuyu under the premise of not making mountain creative work
The range of the utility model protection.
The embodiments of the present invention provide a kind of light source direct projection being hidden in below screen and wither light formula fingerprint recognition mould group.
Embodiment one
It withers light formula fingerprint recognition mould referring to FIG. 2, the utility model provides a kind of light source direct projection being hidden in below screen
Group, including screen component are installed in miniature backlight illuminating system below screen component and are installed in miniature backlight illuminating system
The imaging system of lower section, the screen component include fingerprint identification region 1811, and glass cover-plate 1810 is set to glass cover-plate
The LCD liquid crystal display screen 1820 of 1810 lower sections is set to below LCD liquid crystal display screen 1820 and is used to illuminate LCD liquid crystal display
Shield 1820 light guide plate 1830, offers guide-lighting region 1831,1811 domain of fingerprint identification area among the light guide plate 1830
It is set to 1810 top of glass cover-plate, the miniature backlight illuminating system includes the illuminated component 1840 for generating light, institute
It states illuminated component 1840 and is set to 1811 lower section of fingerprint identification region, the size of the illuminated component 1840, which can at least cover, to be referred to
Line identification region 1811, the light guide plate 1830 are set to 1840 top of illuminated component, and the imaging system includes for being imaged
Imaging len 1860, be installed in the infrared filter 1870 of the lower section of imaging len 1860, be installed under infrared filter 1870
The imaging sensor 1880 for being used to receive image of side, is installed on the outside of imaging len 1860 and infrared filter 1870 for protecting
Imaging len 1860 and the shell 1850 with infrared filter 1870 are protected, offers horn mouth at the top of the shell 1850.
The horn mouth is the aperture diaphragm of imaging len 1860, and aperture diaphragm allows the imaging ray of fingerprint lower epidermis to wear
It crosses in the imaging sensor 1880 that imaging len 1860 is imaged onto below, and blocks the light except field angle and enter imaging
In lens 1860.
In the present embodiment, the illuminated component 1840 is preferably OLED.
In the present embodiment, OLED only covers fingerprint identification region 1811, and required raw material is less, thus cost of implementation
It reduces.
The light that OLED sends out mountain passes through uniform after the guide-lighting region 1831 of light guide plate 1830, LCD liquid crystal display screen 1820
Ground illumination is located at the fingerprint lower epidermis of the fingerprint identification region 1811 of 1810 upper surface of glass cover-plate, and light enters imaging len
In 1860, the gully texture structure of fingerprint epidermis is imaged onto the figure positioned at 1860 lower section of imaging len by the imaging len 1860
As on sensor 1880, forming one clearly as to carry out image procossing.
Leaded light region described in the present embodiment 1831 is the guide-lighting through-hole being provided on light guide plate 1830, in other embodiments
In, also narrow eyes into a slit can be the transparent flat or curved surface being arranged on light guide plate 1830.
In the present embodiment, the imaging len 1860 is optical imaging lens, and the optical imaging lens are preferably luxuriant and rich with fragrance alunite
Your toroidal lens, may be aspherics lens, diffraction optics toroidal lens, preferred a piece of Fresnel in the present embodiment
Toroidal lens, certainly, quantity may be two panels or more.
Embodiment two
It withers light formula fingerprint recognition mould referring to FIG. 3, the utility model provides a kind of light source direct projection being hidden in below screen
Group, including screen component are installed in miniature backlight illuminating system below screen component and are installed in miniature backlight illuminating system
The imaging system of lower section, the screen component include fingerprint identification region 1911, and glass cover-plate 1910 is set to glass cover-plate
The LCD liquid crystal display screen 1920 of 1910 lower sections is set to below LCD liquid crystal display screen 1920 and is used to illuminate LCD liquid crystal display
Shield 1920 light guide plate 1930, offers guide-lighting region 1931,1911 domain of fingerprint identification area among the light guide plate 1930
It is set to 1910 top of glass cover-plate, the miniature backlight illuminating system includes the illuminated component for generating light, the hair
Light component is set to 1911 lower section of fingerprint identification region, and the size of the illuminated component 1940 can at least cover fingerprint identification area
Domain 1911, the illuminated component include flexible circuit board 1990 and the miniature white light LED array that is installed on flexible circuit board
1940, the light guide plate 1930 is set to above illuminated component, and the imaging system includes the imaging len 1960 for imaging,
It is installed in the infrared filter 1970 of 1960 lower section of imaging len, is installed in below infrared filter 1970 and is used to receive image
Imaging sensor 1980, be installed on the outside of imaging len 1960 and infrared filter 1970 for protecting 1960 He of imaging len
With the shell 1950 of infrared filter 1970, horn mouth is offered at the top of the shell 1950.
The difference of embodiment two and embodiment one are as follows: the illuminated component includes flexible circuit board 1990 and is installed in flexibility
Miniature white light LED array 1940 on circuit board, in the present embodiment, the miniature white light LED array 1940 only covers fingerprint
Identification region 1911, required raw material is less, so that the reduction of cost of implementation, the miniature white light LED array 1940, use
The mode of large angle illumination illuminates the fingerprint lower epidermis of the fingerprint identification region 1911 positioned at 1910 upper surface of glass cover-plate,
Its imaging process in imaging systems and other settings are identical with embodiment one, and details are not described herein again.
In conclusion the utility model structure is simple, at low cost, service life is high and good reliability, can disappear simultaneously
Except the stain that local luminance deficiency is formed on the display screen as caused by light guide plate aperture, it is aobvious to 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 (7)
1. a kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen, including screen component, are installed in screen
Miniature backlight illuminating system below component and the imaging system being installed in below miniature backlight illuminating system, the screen component
Including fingerprint identification region, it is characterised in that: the miniature backlight illuminating system includes the illuminated component for generating light, institute
Illuminated component to be stated to be set to below fingerprint identification region, the size of the illuminated component can at least cover fingerprint identification region,
The imaging system includes the imaging len for imaging, and the infrared filter being installed in below imaging len is installed in infrared
Below filter plate for receiving the imaging sensor of image, be installed on the outside of imaging len and infrared filter for protect at
As lens and with the shell of infrared filter, the cover top portion offers horn mouth.
2. a kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen according to claim 1, special
Sign is: the illuminated component is OLED.
3. a kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen according to claim 1, special
Sign is: the illuminated component includes flexible circuit board and the miniature white light LED array that is installed on flexible circuit board.
4. according to a kind of described in any item light source direct projection light adjusting type fingerprint recognitions being hidden in below screen of Claims 2 or 3
Mould group, it is characterised in that: the imaging len be optical imaging lens, the optical imaging lens be Fresnel toroidal lens,
Aspherics lens or diffraction optics toroidal lens.
5. a kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen according to claim 4, special
Sign is: the quantity of the imaging len is one, two or more.
6. described in any item a kind of light source direct projection light adjusting type fingerprint recognitions being hidden in below screen according to claim 1~3
Mould group, it is characterised in that: the screen component further includes glass cover-plate, the LCD liquid crystal display screen being set to below glass cover-plate,
Be set to below LCD liquid crystal display screen for illuminating the light guide plate of LCD liquid crystal display screen, offer and lead among the light guide plate
Light region, the light guide plate are set to above illuminated component.
7. a kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen according to claim 6, special
Sign is: the leaded light region is the guide-lighting through-hole being provided on light guide plate or the transparent flat or song that are arranged on light guide plate
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801454.2U CN208569648U (en) | 2018-05-25 | 2018-05-25 | A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801454.2U CN208569648U (en) | 2018-05-25 | 2018-05-25 | A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208569648U true CN208569648U (en) | 2019-03-01 |
Family
ID=65483475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820801454.2U Active CN208569648U (en) | 2018-05-25 | 2018-05-25 | A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208569648U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350071A (en) * | 2019-06-28 | 2019-10-18 | 佛山市国星光电股份有限公司 | A kind of true color LED packaging and display module |
| CN111860065A (en) * | 2019-04-30 | 2020-10-30 | 深圳市隆利科技股份有限公司 | Fingerprint identification module |
| CN112214129A (en) * | 2020-10-10 | 2021-01-12 | Oppo广东移动通信有限公司 | Electronic equipment and display module |
-
2018
- 2018-05-25 CN CN201820801454.2U patent/CN208569648U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111860065A (en) * | 2019-04-30 | 2020-10-30 | 深圳市隆利科技股份有限公司 | Fingerprint identification module |
| CN110350071A (en) * | 2019-06-28 | 2019-10-18 | 佛山市国星光电股份有限公司 | A kind of true color LED packaging and display module |
| CN112214129A (en) * | 2020-10-10 | 2021-01-12 | Oppo广东移动通信有限公司 | Electronic equipment and display module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208569648U (en) | A kind of light source direct projection light adjusting type fingerprint recognition mould group being hidden in below screen | |
| CN208400147U (en) | A kind of infrared-type fingerprint recognition mould group for below screen | |
| CN204791058U (en) | Fingerprint identification device and have this fingerprint identification device's terminal | |
| CN208400148U (en) | A kind of guide-lighting light modulation integral type fingerprint recognition mould group being hidden in below screen | |
| WO2018205867A1 (en) | Optical fingerprint recognition assembly, display apparatus and mobile terminal | |
| CN110472618A (en) | Shield the sensor module of lower finger print identifying and shields lower fingerprint certification device | |
| CN110047852A (en) | Display panel and display device | |
| CN108287634A (en) | The driving method of touch-control display panel, display device and touch-control display panel | |
| CN107247922A (en) | Display device and mobile terminal | |
| CN108550325B (en) | Local transparent display screen and smart machine | |
| CN209327746U (en) | Display screen component and electronic equipment | |
| CN208546807U (en) | A kind of illuminating light distribution structure being set to optical image mould group | |
| CN110751047B (en) | Fingerprint identification module and electronic equipment | |
| CN107092897B (en) | Display panel and display device | |
| US11227138B2 (en) | Liquid crystal display device having fingerprint sensor | |
| CN207937986U (en) | Touch display panel and display device | |
| KR20210010533A (en) | Optical fingerprint identification assembly and terminal | |
| WO2020168540A1 (en) | Fingerprint recognition apparatus and electronic device | |
| CN208547955U (en) | A kind of asymmetric light adjusting type fingerprint recognition mould group being hidden in below screen | |
| CN111752039A (en) | Liquid crystal display module and display device | |
| CN107479631A (en) | Terminal | |
| KR20210040897A (en) | Fingerprint Acquisition Sensor for Mobile Device, the Mobile Device Comprising the Sensor and Fingerprint Image Acqusition Method thereof | |
| CN209086953U (en) | Fingerprint mould group and electronic equipment | |
| CN111025789A (en) | Screen cover plate of electronic equipment and electronic equipment | |
| CN206584262U (en) | Electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |