CN203012748U - Stray light coupling type biological information sensing module and electronic equipment using same - Google Patents
Stray light coupling type biological information sensing module and electronic equipment using same Download PDFInfo
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- CN203012748U CN203012748U CN 201220729221 CN201220729221U CN203012748U CN 203012748 U CN203012748 U CN 203012748U CN 201220729221 CN201220729221 CN 201220729221 CN 201220729221 U CN201220729221 U CN 201220729221U CN 203012748 U CN203012748 U CN 203012748U
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Abstract
A stray light coupling type biological information sensing module comprises at least a light-transmitting body, a display unit and an optical module. The light-transmitting body has a front side and a back side. The front side is designed to carry an organism. The display unit is installed on the back of the light-transmitting body to display a picture. The optical module is installed on the back of light-transmitting body by coupling glue and adjacent to the display unit. A plurality of first light of the picture is coupling input into the organism through light-transmitting body and process for a certain distance. A plurality of second light is coupling output from the organism and enters the optical module through the light-transmitting body. The optical module senses the second light to generate a biological image signal. A piece of electronic equipment is also disclosed. The stray light coupling type biological sensing module and the electronic equipment using the same can effectively use a light source of a display to realize optical fingerprint sensing.
Description
Technical field
The utility model relates to a kind of parasitic light manifold type biological information sensing module and uses its electronic equipment.
Background technology
In recent years, for example the development of the portable mobile equipment such as mobile phone, panel computer is flourishing, indispensable articles for use in life, What is more, demand along with networking development and ecommerce, mobile phone may have been integrated the authentication function that represents the personal status especially, electronic identification certificate for example, chip card of E-Passport and consumption use etc., for this reason except traditional digitized cipher authentication etc., strengthen software and hardware function that the personal status authenticates following developing direction especially by the biological information (for example fingerprint etc.) of human body.Known biological information sensing function has fingerprint, palmmprint, iris, vein, shape of face etc., and based on device price, use difficulty and feature stability, fingerprint is most popular recognition methods always.
Known fingerprint sensing device mainly contains two kinds of condenser type and optical profile types, the shortcoming of condenser type maximum is for wet finger or has the sensing face of liquid to use, in addition, this capacitance type fingerprint sensor is all to be embedded in the opening of shell of electronic equipment, so not only affect attractive in appearance, and dust and dirty meeting be stuck in the intersection of sensor and electronic equipment, makes outward appearance more aobvious ugly.
Common optical fingerprint sensor 500, see also Fig. 1, it is mainly the total reflection principle that forms between the optical flat (it typically is a plane 512 of water chestnut mirror 510) of fingerprint FP contact and fingerprint FP by light, go out the image of fingerprint with construction on image sensor 530, this sensing principle, maximum shortcoming is the continuity lines image that the finger for drying can't demonstrate, and causes and have the problem of misreading when unique point extracts.Simultaneously, the light source that also needs to provide the light source 520 of a collimation to be used as total reflection principle, the complexity when this has also increased cost and design.
For this reason, the parasitic light manifold type biological information sensing module that the utility model proposes is namely in order to solve above-mentioned several problem.
The utility model content
A purpose of the present utility model is to provide a kind of parasitic light manifold type biological information sensing module and uses its electronic equipment, and it can effectively utilize the light source of display to reach the fingerprint sensing of optical profile type.
For reaching above-mentioned purpose, the utility model provides a kind of parasitic light manifold type biological information sensing module, and it comprises a printing opacity body, a display unit and an optical module at least.The printing opacity body has a positive and back side.The front is designed to carry a biosome thereon.Display unit is installed in the back side of printing opacity body, is used for showing a picture.Optical module is located at the back side of printing opacity body by a coupling mucilage binding, and adjacent with display unit.A plurality of first light of picture by printing opacity body coupling incident biosome and the segment distance of advancing in vivo after, from a plurality of the second light of biosome coupling output, and enter optical module by the printing opacity body.Optical module sensing the second light is to produce a biometric image signal.
Preferably, described display unit is a LCD unit or organic light emitting diode display unit.
Preferably, the described back side of described printing opacity body is formed with a plurality of touch-control electrodes, and described printing opacity body and described display unit consist of a touch control display, carries out thereon the touch-control behavior for a user.
Preferably, described sensing module more comprises a controlled processing unit, is electrically connected to described display unit and described optical module, is used for controlling the running of described display unit and described optical module.
Preferably, described controlled processing unit is controlled described display unit and is shown respectively a plurality of pictures, and described optical module produces a plurality of picture signals according to the different wave length line of described a plurality of pictures respectively.
Preferably, described controlled processing unit is selected one and is used as described biometric image signal from described a plurality of picture signals.
Preferably, described controlled processing unit is according to described a plurality of picture signals being carried out optimization and mutually compensating to produce described biometric image signal.
Preferably, described a plurality of picture signal comprises fingerprint image and refers to vein image information.
Preferably, described optical module comprises: a housing; And a first wave guide, an aperture, one second waveguide and a light image sensor, all be arranged in described housing, wherein said the second light is sequentially by described first wave guide, described aperture and described the second waveguide, and arrives described light image sensor to produce described biometric image signal.
Preferably, described sensing module more comprises: an invisible light source, the described biosome that provides invisible light to be coupled into by described printing opacity body to be mapped to contact is to increase the selectivity of sensing function.
Preferably, described printing opacity body comprises a moving part, described optical module is located at the described moving part of described printing opacity body by described coupling mucilage binding, wherein said optical module comprises a pushbutton switch, and it triggers to provide the function of a button for described moving part.
Preferably, a length of the sensing area on described printing opacity body is more than or equal to (2.54/x) * 2 centimeter, and wherein the x representative is along the resolution of the direction of the described length of described sensing area, and the unit of described resolution is counting of per inch.
The utility model also provides a kind of electronic equipment, and it comprises the above-mentioned parasitic light manifold type biological information sensing module that a casing, is arranged at the motherboard in casing and is connected to casing.Display unit and optical module are electrically connected to motherboard.
Preferably, described electronic equipment more comprises: a CPU (central processing unit), be electrically connected to described motherboard, and be used for controlling the operation of described controlled processing unit.
Preferably, described electronic equipment more comprises: a storage device, be electrically connected to described motherboard, and be used for storage data; One reservoir is electrically connected to described motherboard, is used for temporal data; And a power module, be electrically connected to described motherboard, be used for providing power supply.
Preferably, described display unit comprises one near the clear zone of described optical module, and the brightness in described clear zone is higher than the brightness in the zone except described clear zone.
By above-described embodiment of the present utility model, a kind of parasitic light manifold type biological information sensing module can be provided and use its electronic equipment, the outward appearance of electronic equipment can not had influence on by optical sensing module, the user can not feel recess or the gap that electronic equipment has holes to cause when using electronic equipment.Utilize the optical fingerprint sensor, coordinate the light source of display, can obtain good sensing effect, and not need to provide in addition light source to use to the optical fingerprint sensor.Also just because of this, can utilize display to provide the different wave length source to carry out sensing for parasitic light manifold type biological information sensing module uses.
For foregoing of the present utility model can be become apparent, a preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Description of drawings
Fig. 1 shows a kind of schematic diagram of traditional optical fingerprint sensor.
Fig. 2 A to 2C shows the outside drawing according to the electronic equipment of three kinds of examples of the utility model preferred embodiment.
Fig. 3 A and 3B show the calcspar according to the electronic equipment of two kinds of examples of the utility model preferred embodiment.
Fig. 4 A shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the first embodiment.
Fig. 4 B shows the thin section schematic diagram according to the optical module of the parasitic light manifold type biological information sensing module of the utility model the first embodiment.
Fig. 4 C shows the schematic diagram of the sensing area of Fig. 4 B.
The schematic diagram of a sensing of the light image sensor of Fig. 4 D demonstration Fig. 4 B.
Fig. 5 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the second embodiment.
Fig. 6 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the 3rd embodiment.
Fig. 7 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the 4th embodiment.
Drawing reference numeral:
F: biosome/finger
FP: fingerprint
Fr: line peak
Fv: line paddy
L1: the first light
L2: the second light
1,1', 1 ", 1 " ': parasitic light manifold type biological information sensing module
10: the printing opacity body
10SA: sensing area
11: the front
12: the back side
15: groove
18: moving part
19: pitch-dark layer
20: display unit
22: the clear zone
25: the touch-control electrode
30,30': optical module
31: housing
32: first wave guide
32C: curved surface
32R: reflecting surface
33: aperture
Waveguide in 34: the second
34C: curved surface
34R: reflecting surface
35: the light image sensor
35C1: sensing
35CR, 35CG, 35CB, 35CW: sub-sensing
36: Connection Element
37: flexible circuit board
38: pushbutton switch
39: coupling glue
40: controlled processing unit
50: CPU (central processing unit) (CPU)
70: casing
80: motherboard
81: storage device
82: reservoir
83: power module
90: button
100,100b, 100c, 100d, 100e: electronic equipment
110: invisible light source
500: the optical fingerprint sensor
510: the water chestnut mirror
512: the plane
520: light source
530: image sensor.
Embodiment
The utility model is the shortcoming that solves aforementioned condenser type and traditional optical formula fingerprint sensing in order to provide, the firstth, sensor is stashed to provide design attractive in appearance and overcome the wet sensing problem of pointing, the secondth, come sensing as optics by parasitic light sensing principle with the principle that replaces original collimated light total reflection, to overcome the finger sensing problem of doing, the 3rd is the design that sensing module itself does not have light source, complexity and degree of difficulty in the time of can reducing design.
Fig. 2 A shows the outside drawing according to the electronic equipment of three kinds of examples of the utility model preferred embodiment.As shown in Fig. 2 A, the electronic equipment 100 of this example is to explain as an example with a kind of mobile phone (particularly Smartphone), but the utility model is not subject to this, and the utility model can be applied to for example other electronic equipments such as panel computer.Electronic equipment 100 comprises a casing 70, a motherboard 80 and a parasitic light manifold type biological information sensing module 1 at least.Casing 70 is the outermost structure of electronic equipment 100, is also the structure that can allow user's hand grip.Casing 70 the insides are equiped with many parts.For example, the parts such as motherboard 80, camera lens (not shown), battery (not shown) are all to be arranged in casing 70.
Parasitic light manifold type biological information sensing module 1 is arranged in casing 70 and is connected to casing 70.Parasitic light manifold type biological information sensing module 1 comprises a printing opacity body 10, a display unit 20 and an optical module 30.It should be noted that sensing module 1 can more comprise a controlled processing unit 40.Controlled processing unit 40, display unit 20 and optical module 30 are electrically connected to motherboard 80.The operation of motherboard 80 control display device unit 20, optical module 30 and controlled processing unit 40.
The example of Fig. 2 B is to be similar to Fig. 2 A, and difference is that electronic equipment 100b more comprises a button 90, and optical module 30 moves to the right side with controlled processing unit 40 from the centre.In addition, optical module 30 can also be arranged at the upside of display unit 20, or left side, right side, so long as light other at display unit 20 and that can use display unit 20 gets final product.Electronic equipment 100b possesses outward appearance and the mode of operation of present mobile phone, and the optical fingerprint sensing function also is provided simultaneously, also or optical module 30 can with button 90 combinations, provide simultaneously the function of sensing and button, after being illustrated in.
The example of Fig. 2 C is to be similar to Fig. 2 A, difference is that the screen of electronic equipment 100c comprises a clear zone 22, this clear zone is to have identical brightness with other zones when usually showing, but when entering sensing modes, its brightness meeting strengthens, namely brightness is carried out parasitic light is coupled to finger so that stronger light to be provided higher than the brightness in the zone except clear zone 22, makes sensor also can obtain good sensing effect.The size in clear zone 22 can be according to the design requirement adjustment, and the design in clear zone 22 can be saved the electrical source consumption under the fingerprint sensing pattern.Certainly, clear zone 22 and all the other zones are all not demonstrate any light or pattern under park mode.
Fig. 3 A and 3B show the calcspar according to the electronic equipment of two kinds of examples of the utility model preferred embodiment.As shown in Figure 3A, the electronic equipment 100d of this example can be applied to aforesaid electronic equipment 100,100b or 100c.Display unit 20 is all the below that is installed in printing opacity body 10 with optical module 30, and electronic equipment 100d can more comprise a CPU (central processing unit) (CPU) 50, a storage device 81, a reservoir 82 and a power module 83.CPU50 is electrically connected to motherboard 80, is used for controlling the operation of controlled processing unit 40.Storage device 81 is electrically connected to motherboard 80, is used for storage data, is for example user's master data or procedural file etc., and storage device can be known non-volatile such as fast flash memory etc.Reservoir 82 is electrically connected to motherboard 80, is used for temporal data, carries out temporary transient access when operating for CPU50.Power module 83 is electrically connected to motherboard 80, is used for providing power supply, and power module 83 is for example rechargeable battery or disposable battery etc., and reservoir 82 is known dynamic randon access reservoir (DRAM).
The electronic equipment 100e of Fig. 3 B is the electronic equipment 100d that is similar to Fig. 3 A, difference is that CPU and controlled processing unit are to be integrated into together, to reduce the number of part and electric connection point, simplify the complexity of assembling, also or controlled processing unit can with optical module in sensor combine the formation single-chip.
Fig. 4 A shows the schematic diagram according to the parasitic light manifold type biological information sensing module 1 of the utility model the first embodiment.As shown in Fig. 4 A, printing opacity body 10 has positive 11 and one back side 12, positive 11 be designed to carry one be for example finger biosome F thereon.
The first light L1 is coupled into finger F from display unit 20, when light is coupled out from the skin of finger F, because finger F has line peak Fr and line paddy Fv, line peak Fr contacts with the printing opacity body 10 that is for example glass, due to the approaching light medium continuity of refraction coefficient, make light stronger from the be coupled out intensity that enters in printing opacity body 10 of line peak Fr, the intensity of the second light L2 that namely is coupled out is stronger.Because the line paddy Fv of finger F contacts with air, and the refraction coefficient difference of finger skin and air is large, so light will produce scattering (part has total reflection) at line paddy Fv, and be not easy from line paddy Fv to be coupled out, moreover also can be reflected by the outside surface at printing opacity body 10 partly by the second light L2 that line paddy Fv is coupled out, more allow it enter the interior remitted its fury of printing opacity body 10.Therefore the light intensity of two adjacent line peaks and line printing opacity body that paddy goes out to shoot out to enter difference to some extent.Therefore, optical module 30 can be differentiated according to this principle the intensity variation of branching honeybee and line paddy, thereby produces a fingerprint image with the principle of taking pictures.With traditional utilize total reflection principle as a fingerprint sensing principle relatively under, the principle of the parasitic light coupling that the utility model utilizes is to utilize coupling light source from adjacent line peak and the strength distribution the during outgoing of line paddy.Therefore even do finger, also have good light intensity distributions in the contact point of line peak and light penetrating object, so can be as the image that can't obtain as traditional total reflection.moreover another innovation of the utility model is for to utilize the parasitic light of screen as coupling light source, its greatest feature is except saving cost, can also utilize the light source of screen different colours as the modulation of sensing, for example long wavelength's light (ruddiness) is difficult for absorbing for skin, and short wavelength light source (blue light) only can transdermal the top layer, so, for example utilize the ruddiness can be except the information of skin surface, also even can see the blood-vessel image (particularly thicker blood-vessel image) in skin, its even can provide simultaneously fingerprint image with refer to vein image information (that is, picture signal comprises fingerprint image and refers to vein image information), reach hybrid-type biological information judgement.certainly the utility model embodiment is in order to reach broader sensing wavelength, visible light except display screen, also can be other at optical module 30, invisible light source (for example infrared light sources) 110 is set, the biosome F that provides invisible light to be coupled into by printing opacity body 10 to be mapped to contact is to increase the selectivity of sensing function, such as the sensing that the information such as blood oxygen concentration can be provided, the biological information sensing function can be extended to except outside traditional fingerprint image like this, sensing apparatus as information more than one, can reach more accurate sensing, namely hang down false acceptance rate (FAR, False acceptance rate) and wrong rate of rejection (FRR, false rejection rate), simultaneously also can provide antiforge function, the for example differentiation of prosthetic finger.
Controlled processing unit 40 is electrically connected to display unit 20 and optical module 30, is used for the running of control display device unit 20 and optical module 30.Below be described in detail.
So-calledly concealedly refer to that the shell of electronic equipment does not have holes.Perhaps, although printing opacity body 10 meeting printing opacities also can have the plated film that penetrates specific wavelength by the surface design with optical module 30, make the user be difficult for seeing optical module 30.Simultaneously in order to reach good optical quality, engages between optical module 30 and printing opacity body 10 (it typically is glass) that the light peneration of use is good and refraction coefficient approaching or equal the coupling glue 39 of the refraction coefficient of printing opacity body 10.in the utility model, the part of printing opacity body 10 and optical module 30 constitute structure of the present utility model, and the parasitic light of display unit (screen) is by the part of printing opacity body 10 and contacting of finger, optically-coupled is entered finger interior, and coupling light after a bit of distance of finger interior transmission above optical sensing module, and by the scattering (scattering) at skin surface, make the line peak that contacts with the printing opacity body 10 more light (stronger intensity) that is coupled reenter printing opacity body 10, and transfer to its below optical module 30, printing opacity body 10 is namely the composition important document of reaching twice optically-coupled, and twice optically-coupled scene is the adjacent position at printing opacity body 10.
Fig. 4 B shows the thin section schematic diagram according to the optical module 30 of the parasitic light manifold type biological information sensing module of the utility model the first embodiment, but does not demonstrate invisible light source 110.As shown in Figure 4 B, optical module 30 comprises a housing 31 and all is arranged at a first wave guide 32, one second waveguide 34 and a light image sensor 35 in housing 31.First wave guide 32 and the second waveguide 34 are linked and are fixed its relative position by a Connection Element 36.The second light L2 is sequentially by first wave guide 32 and the second waveguide 34, and arrival light image sensor 35 is to produce the biometric image signal.Light image sensor 35 can be charge coupled cell (Charge-coupled device, CCD) image sensor, CMOS (Complementary Metal Oxide Semiconductor) (CMOS) image sensor etc.First wave guide 32 and the second waveguide 34 can be solid waveguides, can also be hollow waveguides, are not particularly limited in this.First wave guide 32 has a reflecting surface 32R, and the second waveguide 34 has a reflecting surface 34R, and reflecting surface 32R/34R can be for example 90 degree with turn light rays, uses for light path layout.
If when optical module of the present utility model for example is applied to Smartphone, its thickness must strictly be limited for example 1mm, the thickness of first wave guide 32 and the second waveguide 34 is only hundreds of microns for this reason, it corresponds to the length of the sensing area 10SA on the printing opacity body, as shown in the schematic diagram of Fig. 4 C of the sensing area 10SA that shows Fig. 4 B.As shown in Fig. 4 C, the length of the sensing area 10SA on printing opacity body 10 (horizontal direction of drawing) must can correspond to two sensings (horizontal direction of drawing) of light image sensor 35 at least, just can make the slidingtype sensor bring into play its function.Therefore, for example suppose to require that the fingerprint sensing resolution will reach x dpi (counting of per inch) in the direction of the length of sensing area 10SA, the length of sensing area 10SA just must reach (2.54/x) * 2 centimeter (more than or equal to (2.54/x) * 2 centimeter) at least so.Therefore, suppose that resolution is 500dpi, the length of sensing area 10SA just must be more than or equal to 101.6 microns (um) so; Suppose that resolution is 300dip, the length of sensing area 10SA just must be more than or equal to 169.3 microns (um) so.The length of sensing area 10SA just equals the thickness (because reflecting surface 32R is 45 degree inclined-planes) of first wave guide 32 in the utility model design, so according to the demand of frivolous electronic installation, application of the present utility model is take the slidingtype sensor as good.Although can use the sensor of non-sliding type, but thus, must strengthen the thickness (the vertical direction size of drawing) of optical module 30, if electronic installation can be accepted thicker optical module design, the design of the area-type of non-sliding type will be another embodiment of the present utility model.
In addition, in Fig. 4 C, the inner face of printing opacity body 10 is produced lighttight pitch-dark layer 19, and pitch-dark layer 19 is in the outside of sensing area 10SA, in order to avoid the veiling glare of non-sensing area enters into light image sensor 35 and causes interference.Moreover, the composition of the curved surface 34C of the curved surface 32C of first wave guide 32 and the second waveguide 34 is equivalent to the biconvex lens of an entity, and reach the effect of dwindling and focusing on, and the optical module 30 of the utility model embodiment more can comprise an aperture 33, it is arranged in the middle of first wave guide 32 and the second waveguide 34, its act as can be further with the veiling glare of non-sensing signal to filtering, allow light image sensor 35 that better sensing quality is arranged.In in the case, the second light L2 is sequentially by first wave guide 32, aperture 33 and the second waveguide 34, and arrives light image sensor 35 to produce the biometric image signal.
The embodiment of controlled processing unit 40 has a variety of.In an example, controlled processing unit 40 control display device unit 20 show respectively a plurality of pictures, and optical module 30 produces a plurality of picture signals according to the different wave length line of these pictures respectively.For example, that controlled processing unit 40 control display device unit 20 show respectively is red, orange, yellow, green, blue, indigo and purple picture, allowing the first light L1 of input present respectively is red, orange, yellow, green, blue, indigo and purple light, utilize the light of different colours to be coupled into out finger, to obtain different sensing result.After obtaining these sensing result, controlled processing unit 40 can be selected one and be used as the biometric image signal from these picture signals.Perhaps, controlled processing unit 40 can be according to these picture signals being carried out optimization and mutually compensating to produce the biometric image signal.Because the finger of different people or different situations has different reactions for the different wave length line, by this method of the present utility model, can utilize all sidedly the light of various wavelength to carry out sensing, it is very fast that the switch speed of light also can be designed to be, and makes the user not need again to slide finger repeatedly.For this reason, as shown in Fig. 4 D, one of them sensing 35C1 of optical imagery sensor 35 of the present utility model is divided into again sub-sensing (sub-cell) 35CR, 35CG, 35CB and the 35CW of four, it is the sensing different light rays respectively, for example ruddiness, green glow, blue light and white light, by reading respectively these different sub-sensings, can obtain simultaneously the information of different spectrum.
Fig. 5 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the second embodiment.As shown in Figure 5; the parasitic light manifold type biological information sensing module 1' of the present embodiment is similar to the first embodiment; difference is that optical module 30 is to be embedded in a groove 15 of printing opacity body 10; so can shorten the distance of the second light L2 transmission, also can protect optical module 30 to make it avoid anxiety in damage.
Fig. 6 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the 3rd embodiment.As shown in Figure 6, " be to be similar to the first embodiment, difference is that the display that uses is a kind of touch controlled type display to the parasitic light manifold type biological information sensing module 1 of the present embodiment.Therefore, in the present embodiment, the back side 12 of printing opacity body 10 is formed with a plurality of touch-control electrodes 25, and printing opacity body 10 consists of a touch control display with display unit 20, carries out thereon the touch-control behavior for a user, is used for operating electronic equipment.
Fig. 7 shows the schematic diagram according to the parasitic light manifold type biological information sensing module of the utility model the 4th embodiment.As shown in Figure 7, the parasitic light manifold type biological information sensing module 1 of the present embodiment " ' be to be similar to the first embodiment, and printing opacity body 10 comprises a moving part 18.Moving part 18 can move up and down, and optical module 30' is installed in the moving part 18 of printing opacity body 10 by coupling glue 39, and comprises a pushbutton switch 38, and it triggers to provide the function of a button for moving part 18.The function of button can be used for controlling electronic equipment various software and hardware functions startup whether.Therefore, in the present embodiment, optical module 30' has the function of button, and the button 90 of moving part 18 and the pushbutton switch 38 similar Fig. 2 B of composition, it should be noted that, the moving part 18 of the present embodiment can be one-body molded with printing opacity body 10, and then after utilizing, process technology cuts apart it, for example utilizes laser cutting technique, also or moving part 18 are independent shapings with printing opacity body 10, even so, moving part 18 still can be considered as the part of printing opacity body 10.Pushbutton switch 38 can be arranged on the flexible circuit board 37 that is electrically connected to the light image sensor of optical module 30' (can referring to Fig. 4 C), and flexible circuit board 37 also is electrically connected to controlled processing unit 40 simultaneously, meets the wiring mode of electronic equipment.Because this can implement easily considering instructions of the present utility model and accompanying drawing in light of actual conditions, therefore repeat no more in this.
The user of mobile phone pays much attention to the outward appearance of mobile phone, if install a sensor on the shell of mobile phone, is that a lot of users are unacceptable.The parasitic light manifold type biological information sensing module that the utility model provides is the light source that utilizes display, after light source is coupled to finger, light can transmit a segment distance in finger interior, if with sensor as for the display side, the effective light distribution situation that passes over of sensing finger line peak and line paddy.Although coming the fingerprint of the finger of sensing static state with large-area sensor is also feasible, the fingerprint that comes sensing to slide through finger thereon with longilineal sliding fingerprint sensor is better.
By above-described embodiment of the present utility model, a kind of parasitic light manifold type biological information sensing module can be provided and use its electronic equipment, the outward appearance of electronic equipment can not had influence on by optical sensing module, the user can not feel recess or the gap that electronic equipment has holes to cause when using electronic equipment.Utilize the optical fingerprint sensor, coordinate the light source of display, can obtain good sensing effect, and not need to provide in addition light source to use to the optical fingerprint sensor.Also just because of this, can utilize display to provide the different wave length source to carry out sensing for parasitic light manifold type biological information sensing module uses.
The specific embodiment that proposes in the detailed description of preferred embodiment is convenient explanation technology contents of the present utility model only, but not with the utility model narrow sense be limited to above-described embodiment, in the situation that does not exceed spirit of the present utility model and following claim, the many variations of doing is implemented, and all belongs to scope of the present utility model.
Claims (16)
1. a parasitic light manifold type biological information sensing module, is characterized in that, described parasitic light manifold type biological information sensing module comprises:
One printing opacity body has a positive and back side, and described front is designed to carry a biosome thereon;
One display unit is installed in the described back side of described printing opacity body, is used for showing a picture; And
One optical module is located at the described back side of described printing opacity body by a coupling mucilage binding, and adjacent with described display unit, and a plurality of first light of wherein said picture are by the described printing opacity body described biosome of incident that is coupled;
Described a plurality of the first light is advanced in described biosome after a segment distance, from a plurality of the second light of described biosome coupling output, and enters described optical module by described printing opacity body; And
Described a plurality of the second light of described optical module sensing are to produce a biometric image signal.
2. parasitic light manifold type biological information sensing module as claimed in claim 1, is characterized in that, described display unit is a LCD unit or organic light emitting diode display unit.
3. parasitic light manifold type biological information sensing module as claimed in claim 1, it is characterized in that, the described back side of described printing opacity body is formed with a plurality of touch-control electrodes, and described printing opacity body and described display unit consist of a touch control display, carries out thereon the touch-control behavior for a user.
4. parasitic light manifold type biological information sensing module as claimed in claim 1, it is characterized in that, described sensing module more comprises a controlled processing unit, is electrically connected to described display unit and described optical module, is used for controlling the running of described display unit and described optical module.
5. parasitic light manifold type biological information sensing module as claimed in claim 4, it is characterized in that, described controlled processing unit is controlled described display unit and is shown respectively a plurality of pictures, and described optical module produces a plurality of picture signals according to the different wave length line of described a plurality of pictures respectively.
6. parasitic light manifold type biological information sensing module as claimed in claim 5, is characterized in that, described controlled processing unit is selected one and is used as described biometric image signal from described a plurality of picture signals.
7. parasitic light manifold type biological information sensing module as claimed in claim 5, is characterized in that, described controlled processing unit is according to described a plurality of picture signals being carried out optimization and mutually compensating to produce described biometric image signal.
8. parasitic light manifold type biological information sensing module as claimed in claim 5, is characterized in that, described a plurality of picture signals comprise fingerprint image and refer to vein image information.
9. parasitic light manifold type biological information sensing module as claimed in claim 1, is characterized in that, described optical module comprises:
One housing; And
One first wave guide, an aperture, one second waveguide and a light image sensor, all be arranged in described housing, wherein said the second light is sequentially by described first wave guide, described aperture and described the second waveguide, and arrives described light image sensor to produce described biometric image signal.
10. parasitic light manifold type biological information sensing module as claimed in claim 1, is characterized in that, described sensing module more comprises:
One invisible light source, the described biosome that provides invisible light to be coupled into by described printing opacity body to be mapped to contact is to increase the selectivity of sensing function.
11. parasitic light manifold type biological information sensing module as claimed in claim 1, it is characterized in that, described printing opacity body comprises a moving part, described optical module is located at the described moving part of described printing opacity body by described coupling mucilage binding, wherein said optical module comprises a pushbutton switch, and it triggers to provide the function of a button for described moving part.
12. parasitic light manifold type biological information sensing module as claimed in claim 1, it is characterized in that, one length of the sensing area on described printing opacity body is more than or equal to (2.54/x) * 2 centimeter, wherein the x representative is along the resolution of the direction of the described length of described sensing area, and the unit of described resolution is counting of per inch.
13. an electronic equipment is characterized in that, described electronic equipment comprises:
One casing;
One motherboard is arranged in described casing; And
Sensing module as claimed in claim 4 is connected to described casing, and wherein said controlled processing unit, described display unit and described optical module are electrically connected to described motherboard.
14. electronic equipment as claimed in claim 13 is characterized in that, described electronic equipment more comprises:
One CPU (central processing unit) is electrically connected to described motherboard, is used for controlling the operation of described controlled processing unit.
15. electronic equipment as claimed in claim 13 is characterized in that, described electronic equipment more comprises:
One storage device is electrically connected to described motherboard, is used for storage data;
One reservoir is electrically connected to described motherboard, is used for temporal data; And
One power module is electrically connected to described motherboard, is used for providing power supply.
16. electronic equipment as claimed in claim 13 is characterized in that, described display unit comprises one near the clear zone of described optical module, and the brightness in described clear zone is higher than the brightness in the zone except described clear zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220729221 CN203012748U (en) | 2012-12-26 | 2012-12-26 | Stray light coupling type biological information sensing module and electronic equipment using same |
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| CN 201220729221 CN203012748U (en) | 2012-12-26 | 2012-12-26 | Stray light coupling type biological information sensing module and electronic equipment using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033518A (en) * | 2018-08-15 | 2020-04-17 | 深圳市汇顶科技股份有限公司 | LCD fingerprint identification system, optical fingerprint identification device under screen and electronic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033518A (en) * | 2018-08-15 | 2020-04-17 | 深圳市汇顶科技股份有限公司 | LCD fingerprint identification system, optical fingerprint identification device under screen and electronic device |
| CN111033518B (en) * | 2018-08-15 | 2023-10-24 | 深圳市汇顶科技股份有限公司 | LCD fingerprint identification system, off-screen optical fingerprint identification device and electronic device |
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Owner name: MAOCHENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOU ZHENGSAN Effective date: 20141223 |
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Effective date of registration: 20141223 Address after: Taipei City, Taiwan, China Patentee after: J-METRICS TECHNOLOGY CO.,LTD. Address before: Hsinchu City, Taiwan, China Patentee before: Zhou Zhengsan |
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