CN104794467A - Mobile terminal glass panel-based optical collection module and mobile terminal - Google Patents
Mobile terminal glass panel-based optical collection module and mobile terminal Download PDFInfo
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- CN104794467A CN104794467A CN201510255417.7A CN201510255417A CN104794467A CN 104794467 A CN104794467 A CN 104794467A CN 201510255417 A CN201510255417 A CN 201510255417A CN 104794467 A CN104794467 A CN 104794467A
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- led chip
- mobile terminal
- face glass
- detecting module
- optically detecting
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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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- Optics & Photonics (AREA)
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- Theoretical Computer Science (AREA)
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Abstract
The invention discloses a mobile terminal glass panel-based optical collection module which comprises a conductive bracket and an LED chip base, wherein the conductive bracket is provided with an LED chip; the LED chip is coated with a deflector and the deflector is partially coated with an outer rubber shell; the deflector is used for deflecting light into a glass panel to carry out total-reflection propagation; an image sensor and a control circuit which is in signal connection with the image sensor are arranged below the glass panel in the area of the outer rubber shell; a bracket pin extending from the conductive bracket is communicated with the LED chip and the control circuit. Light is directionally deflected through the deflector and enters into the glass panel to carry out total-reflection propagation, so that the light path is relatively short and the light attenuation is decreased. When the total-reflection condition of the glass panel is destroyed, light at the finger contact position is propagated toward the image sensor below the glass panel so as to output a fingerprint image with high resolution. A lens is not required to realize the optical collection of an image, so that the thickness is small and the miniaturization of the module is facilitated. Meanwhile, an opening is not required to realize the optical collection of biological characteristic information such as fingerprints, so that the aesthetic property of the module is improved.
Description
Technical field
The present invention relates to information acquisition recognition technology field, particularly a kind of optically detecting module based on mobile terminal face glass and mobile terminal.
Background technology
Mobile terminal is in order to protect privacy of user, and be typically provided with to authorize and open, existing mandate unlatching comprises two kinds, and a kind of is opened by the password arranged by software cryptography, and its encryption is simple, and both the easy mode by breaking a code was opened, and easily forgot Password again.Another kind of mandate unlatching utilizes specific biological information, as fingerprint carries out authority checking unlatching.
Current collection fingerprint enters scheme as authorizing the two kinds of technology that have of opening, one is adopt pure optical image technology mode to gather finger print information, although the resolution of the fingerprint image gathered is up to 1000DPI, security is high, but the program needs scioptics to reflect to be realized, and thickness is comparatively large, propagates light path complicated, cannot suitably in the higher mobile electronic product of volume requirement or the limited place of installing space, as smart mobile phone, panel computer etc.Another kind adopts semiconductor imaging technique mode to gather, fingerprint image is generated by contact electro-induction, resolution is generally at about 500DPI, although its volume can be lightening, but its resolution gathering image is not high, and it is little to gather image imaging area, easily occurs misreading erroneous judgement impact, the higher mobile terminal of security level required or place cannot be applied in.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of optically detecting module based on mobile terminal face glass, the fingerprint collecting of optical high resolution rate should can be realized based on the optically detecting module of mobile terminal face glass, compact, can be used for portable type electronic product and safety requirements higher place application.
In order to solve the problem, the invention provides a kind of optically detecting module based on mobile terminal face glass, this optically detecting module comprises: be provided with the conducting bracket of LED chip and the LED chip pedestal of part coated with conductive support, the outer layer glue shell of deflecting plate and the coated deflecting plate of part is coated with at described LED chip, the anaclasis that LED chip sends by described deflecting plate enters in face glass carries out total reflection propagation, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, LED chip and control circuit is communicated with along the support pin stretched from conducting bracket.
Say further, described LED chip pedestal is provided with multiple projection, and the upper surface of this projection is greater than bottom it.
Say further, be provided with inside described outer layer glue shell and form trumpet-shaped inclined-plane.
Say further, described imageing sensor comprises ccd image sensor and COMS imageing sensor.
Say further, described support pin 12 is bent into S or Z-shaped.
Say further, described optically detecting module is provided with and coordinates by the outer layer glue shell of hollow the containing cavities formed with face glass, and described imageing sensor is positioned at this containing cavities.
Say further, described deflecting plate is positioned at LED chip and installs as hemispherical refraction part, and this hemispherical refraction part coordinates with the cavity structure on outer layer glue shell.
The present invention also provides a kind of photocontrol mobile terminal, this photocontrol mobile terminal comprises: the optically detecting module coordinated with mobile terminal face glass, this optically detecting module is provided with the conducting bracket of LED chip and the LED chip pedestal of part coated with conductive support hollow, described LED chip is coated with the outer layer glue shell of deflecting plate and the coated deflecting plate of part, the anaclasis that LED chip sends can enter in face glass and carry out total reflection propagation by described deflecting plate, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, LED chip and control circuit is communicated with along the support pin stretched from conducting bracket.
Say further, described LED chip pedestal is provided with multiple projection, and the upper surface of this projection is greater than bottom it.
Say further, described imageing sensor comprises ccd image sensor and COMS imageing sensor.
Say further, described optically detecting module is provided with and coordinates by the outer layer glue shell of hollow the containing cavities formed with face glass, and described imageing sensor is positioned at this containing cavities.
The present invention is based on the optically detecting module of mobile terminal face glass, comprise the LED chip pedestal of conducting bracket and the part coated with conductive support hollow being provided with LED chip, the outer layer glue shell of the hollow of deflecting plate and the coated deflecting plate of part is coated with at LED chip, the anaclasis that LED chip sends can enter in face glass and carry out total reflection propagation by described deflecting plate, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, be communicated with LED chip and control circuit from conducting bracket along the support pin stretched.The medium that optically detecting module utilizes mobile terminal face glass to propagate as light total reflection, the face glass inner total reflection that the light that LED chip sends enters mobile terminal by deflecting plate orientation refraction bright dipping is propagated, and light path is shorter, reduces the decay of light.When finger contact light total reflection propagation zone, destroy the total reflection condition of face glass, the propagation path of light of finger contact position changes the imageing sensor being transmitted to and being positioned under face glass, exports high-resolution fingerprint image through imageing sensor process.Because this module does not need scioptics just can realize optically detecting image, its thickness is thin, is beneficial to the miniaturization of product.Do not need opening on mobile terminals simultaneously, can realize biological information optically detectings such as fingerprints, improve the aesthetic property of product yet.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, and the accompanying drawing in describing is some embodiments of the present invention, to those skilled in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the optically detecting module example structure exploded perspective view based on mobile terminal face glass.
Fig. 2 is that optically detecting module embodiment faces structural representation.
Fig. 3 is along A-A direction structure cross-sectional schematic in Fig. 2.
Fig. 4 is part B structure enlarged diagram in Fig. 3.
Fig. 5 is optically detecting module cross-sectional schematic when coordinating with face glass.
Below in conjunction with embodiment, and with reference to accompanying drawing, the realization of the object of the invention, functional characteristics and advantage are described further.
Embodiment
In order to make the object of invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
As Figure 1-4, the invention provides a kind of optically detecting module embodiment based on mobile terminal face glass.
Should comprise based on the optically detecting module of mobile terminal face glass: be provided with the conducting bracket 1 of LED chip 11 and the LED chip pedestal 2 of part coated with conductive support 1, described LED chip 11 is coated with the outer layer glue shell 3 of deflecting plate 4 and the coated deflecting plate 4 of part, the anaclasis that LED chip 11 sends enters in face glass 7 and carries out total reflection propagation by described deflecting plate 4, at the control circuit that the face glass 7 in outer layer glue shell 3 region has imageing sensor 6 and is connected with imageing sensor 6 signal, LED chip 11 and control circuit is communicated with along the support pin 12 stretched from conducting bracket 1.
Specifically, described support pin 12, from conducting bracket 1 along stretching, is connected for conducting bracket 1 and control circuit are formed electric signal, and being convenient to control circuit can carry out light emitting control to the LED chip 11 be electrically connected with conducting bracket 1.Described conducting bracket 1 can adopt comprise metal phosphor bronze sheet can conductive material, described LED chip 11 refers to the LED chip that can send visible blue light, also the LED chip 11 sending the outer light of sightless line is comprised, its quantity is arranged as required, can be one, two or more, its concrete quantity is not particularly limited.Described face glass 7 can mobile terminal as the touch-screen of mobile phone or display screen a part, total reflection can be carried out to the light entered to propagate, invention does not lie in solution and realizes light and be totally reflected propagation problem at face glass 7, as long as above-mentioned propagation can be realized, therefore face glass 7 is only a concrete enforcement, the technology limiting not to the present invention program.
Described LED chip pedestal 2 is partly on coated with conductive support 1, the mode of injection moulding is passed through at conducting bracket 1 coated LED chip pedestal 2 time shaping, and at conducting bracket 1 for being welded and fixed the position headspace of LED chip 11, the conducting bracket 1 at this space place can be exposed outside by Naked, be convenient to LED chip 11 to weld with conducting bracket 1.The structure of described LED chip pedestal 2 is not particularly limited, but normally with imageing sensor, match as COMS or ccd image pass device, LED chip pedestal 2 can be set to rectangle closed-in construction.
When described LED chip 11 is arranged for frame-shaped structure LED chip pedestal 2, this LED chip 11 can be symmetricly set in both sides.At the coated LED chip pedestal 2 in conducting bracket 1 upper part ground, one of its free-revving engine be exactly do not affect welding LED chip 11 while make conducting bracket 1 have suitable intensity, conducting bracket 1 intensity as a circuit part is little, easily there is the phenomenons such as distortion when following process, affect shaping efficiency and yield rate.
Described LED chip 11 is coated with the outer layer glue shell 3 of deflecting plate 4 and the coated deflecting plate 4 of part; this outer layer glue shell 3 birefringence plate 4 is protected; when it adopts the black or dark plastic material that can be in the light; also can avoid occurring light leakage phenomena; reduce the intensity entering face glass total reflection light, and then the resolution of the fingerprint image of effect diagram image-position sensor collection.
Described deflecting plate 4 adopt comprise organic glass the anaclasis that LED chip 11 sends can be entered in face glass, total reflection propagation can be carried out in face glass, at outer layer glue shell 3.
During work, the light that LED chip 11 sends reflects the face glass 7 entered on mobile terminal through deflecting plate 4, and in face glass 7, carry out total reflection propagation.The light that LED chip 11 sends makes most luminous energy enter in optical waveguide layer to carry out total reflection to be propagated by deflecting plate 4, makes the intensity of the light of propagation larger.When there being finger presses on the total reflection propagation regions surface of face glass 7, destroy the light total reflection in face glass 7, light path is changed and is projected to high-resolution fingerprint image imageing sensor obtaining pressing finger, its compact conformation, can be widely used in safe class and require higher place and the portable type electronic product higher to light requirement.Because optically detecting module is the medium utilizing mobile terminal face glass to propagate as light, light carries out total reflection and propagates after entering mobile terminal face glass, its thinner thickness, production process is less, saves production cost.Be beneficial to the miniaturization of the mobile terminal product using this optically detecting module.
In the present embodiment, described LED chip pedestal 2 is provided with multiple projection 21, the upper surface of this projection 1 is greater than bottom it, and namely projection 21 has at least a side to be outward-dipping, can form more firm secure bond when being convenient to injection moulding deflecting plate 3 in finishing operations with LED chip pedestal 2.This optically detecting module is also provided with and coordinates by the outer layer glue shell of hollow the containing cavities formed with face glass, and described imageing sensor 6 is positioned at this containing cavities, can reduce the thickness of optically detecting module in ground, have more widespread use space.
Being provided with inside described outer layer glue shell 3 and forming trumpet-shaped inclined-plane, when coordinating with imageing sensor 6, assembling can be convenient to.
In the present embodiment, described support pin 12 structure is not particularly limited, and described support pin 12 can be bent into S or Z-shaped, be convenient to photocontrol assembly to be fixed on pcb board be like this connected with control circuit for the ease of welding.
In the present embodiment, module can be used as switch, described LED chip 11 is selected the transmitting illuminant of pairing and is accepted light source, described deflecting plate 4 is positioned at LED chip 11 position and is set to hemispherical refraction part 41, this hemispherical refraction part coordinates with the cavity structure on outer layer glue shell, and the induction that better can be realized light source by hemispherical refraction part 41 is received.
The present invention also provides a kind of photocontrol mobile terminal, this photocontrol mobile terminal comprises: the optically detecting module coordinated with mobile terminal face glass, this optically detecting module is provided with the conducting bracket of LED chip and the LED chip pedestal of part coated with conductive support hollow, described LED chip is coated with the outer layer glue shell of deflecting plate and the coated deflecting plate of part, the anaclasis that LED chip sends can enter in face glass and carry out total reflection propagation by described deflecting plate, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, LED chip and control circuit is communicated with along the support pin stretched from conducting bracket.
Specifically, described optically detecting module adopts above-described embodiment structure, and its action function is same as the previously described embodiments, only optically detecting module is applied to mobile terminal specific embodiment of band face glass.Described face glass normally can utilize the touch on existing smart mobile phone, being not technology to be solved by this invention, not therefore being particularly limited for how realizing luminous energy face glass inner total reflection propagation.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or equivalent replacement is carried out to wherein portion of techniques feature, and these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. based on the optically detecting module of mobile terminal face glass, it is characterized in that, comprise: be provided with the conducting bracket of LED chip and the LED chip pedestal of part coated with conductive support, the outer layer glue shell of deflecting plate and the coated deflecting plate of part is coated with at described LED chip, the anaclasis that LED chip sends by described deflecting plate enters in face glass carries out total reflection propagation, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, be communicated with LED chip and control circuit from conducting bracket along the support pin stretched.
2. the optically detecting module based on mobile terminal face glass according to claim 1, is characterized in that: described LED chip pedestal is provided with multiple projection, and the upper surface of this projection is greater than bottom it.
3. the optically detecting module based on mobile terminal face glass according to claim 1 and 2, it is characterized in that: described optically detecting module is provided with and coordinates by the outer layer glue shell of hollow the containing cavities formed with face glass, and described imageing sensor is positioned at this containing cavities.
4. according to claim 1 based on the optically detecting module of mobile terminal face glass, it is characterized in that, described deflecting plate is positioned at LED chip and installs as hemispherical refraction part, and this hemispherical refraction part coordinates with the cavity structure on outer layer glue shell.
5. according to claim 1 based on the optically detecting module of mobile terminal face glass, it is characterized in that, described imageing sensor comprises ccd image sensor and COMS imageing sensor.
6. a photocontrol mobile terminal, it is characterized in that, comprise the optically detecting module coordinated with mobile terminal face glass, this optically detecting module is provided with the conducting bracket of LED chip and the LED chip pedestal of part coated with conductive support hollow, described LED chip is coated with the outer layer glue shell of deflecting plate and the coated deflecting plate of part, the anaclasis that LED chip sends can enter in face glass and carry out total reflection propagation by described deflecting plate, at the control circuit that the face glass in outer layer glue shell region has imageing sensor and is connected with image sensor signal, LED chip and control circuit is communicated with along the support pin stretched from conducting bracket.
7. photocontrol mobile terminal according to claim 6, is characterized in that: described LED chip pedestal is provided with multiple projection, and the upper surface of this projection is greater than bottom it.
8. the photocontrol mobile terminal according to claim 6 or 7, is characterized in that: described deflecting plate is positioned at LED chip and installs as hemispherical refraction part, and this hemispherical refraction part coordinates with the cavity structure on outer layer glue shell.
9. photocontrol mobile terminal according to claim 6, is characterized in that: described optically detecting module is provided with and coordinates by the outer layer glue shell of hollow the containing cavities formed with face glass, and described imageing sensor is positioned at this containing cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255417.7A CN104794467A (en) | 2015-05-19 | 2015-05-19 | Mobile terminal glass panel-based optical collection module and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255417.7A CN104794467A (en) | 2015-05-19 | 2015-05-19 | Mobile terminal glass panel-based optical collection module and mobile terminal |
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| CN104794467A true CN104794467A (en) | 2015-07-22 |
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| CN201510255417.7A Pending CN104794467A (en) | 2015-05-19 | 2015-05-19 | Mobile terminal glass panel-based optical collection module and mobile terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063120A1 (en) * | 2015-10-12 | 2017-04-20 | Shanghai Oxi Technology Co., Ltd | Fingerprint module |
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2015
- 2015-05-19 CN CN201510255417.7A patent/CN104794467A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017063120A1 (en) * | 2015-10-12 | 2017-04-20 | Shanghai Oxi Technology Co., Ltd | Fingerprint module |
| US10635882B2 (en) | 2015-10-12 | 2020-04-28 | Shanghai Oxi Technology Co., Ltd | Fingerprint module |
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Application publication date: 20150722 |
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