CN106584996A - Cover plate and mobile terminal - Google Patents
Cover plate and mobile terminal Download PDFInfo
- Publication number
- CN106584996A CN106584996A CN201611107886.5A CN201611107886A CN106584996A CN 106584996 A CN106584996 A CN 106584996A CN 201611107886 A CN201611107886 A CN 201611107886A CN 106584996 A CN106584996 A CN 106584996A
- Authority
- CN
- China
- Prior art keywords
- light
- cover plate
- transmitting set
- optical receiver
- optical transmitting
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention provides a cover plate and a mobile terminal. The cover plate comprises a cover plate body, a light transmission layer, a light shielding layer and an optical glass sheet, wherein the transmittance of the light transmission layer is larger than the transmittance of the light shielding layer; the light transmission layer is arranged on one surface of the cover plate body; the light shielding layer is arranged on the light transmission layer and has a light transmission area; the light transmission layer covers the light transmission area of the light shielding layer, so the light transmission layer is shown while the light shielding layer is hidden at the outer side surface of the cover plate; and the optical glass sheet is arranged on the cover plate body and is partially opposite to the light transmission area, so the polarization direction of the light penetrating into the optical glass sheet from the light transmission area is changed. A sensor assembly provided by the invention has higher detection sensitivity.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of cover plate and mobile terminal.
Background technology
With developing rapidly for terminal technology, intelligent terminal increasingly popularizes, and becomes requisite during people live and sets
It is standby.People can be by intelligent terminal's study, amusement etc..
In prior art, there is in mobile terminal proximity transducer.Proximity transducer is arranged on below glass cover-plate.It is close to
Sensor is used for judging it is also to be remote from state in proximity state between mobile terminal and exterior object.Proximity transducer includes
RF transmitter and infrared receiver., to emission infrared ray, the infrared ray is anti-through exterior object for RF transmitter
Reflection light is formed after penetrating, infrared receiver receives the reflection light, then according to the intensity of reflection light for receiving come
Judge it is that proximity state is also remote from state between mobile terminal and exterior object.
In practical application, ink layer on glass cover-plate, is provided with.When RF transmitter is to emission infrared ray, there is portion
Dividend outside line can be entered there is diffraction in ink layer, reflection of this part infrared ray without exterior object that diffraction occurs
It is directly entered in infrared receiver so that the detection of infrared receiver is inaccurate, so as to cause the detection of proximity transducer
It is inaccurate, cause the sensitivity of proximity transducer low.
The content of the invention
The embodiment of the present invention provides a kind of cover plate and mobile terminal, can lift the sensitivity of sensor cluster.
The embodiment of the present invention provides the cover plate includes cover board body, photic zone, light shield layer and optics slide, the printing opacity
Absorbance of the absorbance of layer more than light shield layer, the photic zone are arranged in the one side of cover board body, and the light shield layer is arranged
On photic zone；The light shield layer has a transmission region, and the photic zone covers the transmission region of light shield layer, so that the lid
The outer surface of plate is shown as the photic zone, and hides the light shield layer；The optics slide is arranged at the cover board body
It is upper and just right with the local of the transmission region, for changing the polarization side that light therein is injected from the transmission region
To.
The embodiment of the present invention provides a kind of mobile terminal, including housing, cover plate, display floater and sensor cluster, institute
State sensor cluster to be arranged in the housing, the display floater is arranged on the housing, the cover plate is covered in described
On display floater, the cover plate is the cover plate described in any of the above-described.
From the foregoing, it will be observed that the embodiment of the present invention is turned by the first light sent the first optical transmitting set using optics slide
The second light of the second polarization direction is changed to, and second light generates the of the second polarization direction after reflecting through obstacle
One reflection light, and the light of diffraction does not pass through the optics slide therefore its polarization direction or the first polarization in photic zone
Direction, therefore first optical receiver can only receive the first reflection light of the second polarization direction, it is inclined without receiving first
Shake the diffracted light in direction, such that it is able to avoid diffracted light from entering in first optical receiver, causes first light-receiving
The basic value of device is larger, the beneficial effect with the detection sensitivity for improving first optical receiver.
Description of the drawings
Structural representations of the Fig. 1 for the mobile terminal in one embodiment of the present invention.
Structural representations of the Fig. 2 for the cover plate assembly in one embodiment of the present invention.
Structural representations of the Fig. 3 for the first optical transmitting set in one embodiment of the present invention.
Structural representations of the Fig. 4 for the first optical receiver in one embodiment of the present invention.
Another structural representations of the Fig. 5 for the cover plate assembly in one embodiment of the present invention.
Another structural representations of the Fig. 6 for the cover plate assembly in one embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Description purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, define " first ", the feature of " second " can be expressed or implicitly include one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect or mutually can communicate；Can be joined directly together, it is also possible to by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact including the first and second features but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " it is special including first
Levy directly over second feature and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below ", or be merely representative of immediately below second feature and obliquely downward including fisrt feature
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or arranging
Relation.Additionally, the invention provides various specific technique and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Refer to Fig. 1, Fig. 1 is the structure chart of the mobile terminal 1 in one embodiment of the present invention, and the mobile terminal 1 can
Think the electronic equipments such as mobile phone, IPAD.The mobile terminal 1 includes housing 10, panel 20 and cover plate assembly 30.
Referring to Fig. 2, the housing 10 is used for the exterior contour for forming the mobile terminal 1, and accommodates other functions unit
Part.
The panel 20 can be display floater, such as display panels, touch-control display panel, OLED display panel etc.,
Which is installed on the housing 10 and is connected with housing 10.
The cover plate assembly 30 includes sensor cluster 31 and cover plate 32.The sensor cluster 31 is arranged in housing 10,
The panel 20 is arranged on the housing 10 and is connected with the housing 10, and the cover plate 32 is covered on the panel 20, to protect the face
Plate 20.Viewing area of the cover plate 32 with the first area 32a relative with the non-display area of panel 20 and with panel 20
Relative second area 32b.Wherein, first area 32a is substantially white or other are light, and which can permeation parts black light
And visible ray.Second area 32a is transparent, in order to the mobile terminal 1 through second area 32a by panel 20
Picture present to user.
In certain embodiments, the mobile terminal 1 also includes called device assembly, and corresponding, it is right to offer on the cover plate 32
The receiver hole 300 answered.
In certain embodiments, the mobile terminal 1 also includes fingerprint module 40, with the finger print information of user input user.
Fig. 2 is continued referring to, the sensor cluster 31 includes 311 first optical receiver 313, ambient light of the first optical transmitting set
Sensor 314, and circuit board 315.First optical transmitting set 311, the first optical receiver 313, ambient light sensor 314 are all provided with
It is placed on the circuit board 315, and electrically connects with the circuit board 315.The cover plate 32 has optics slide 312.
The optics slide 312 is arranged on the light transmission path of first optical receiver 313.In the present embodiment, its peace
Loaded in the cover plate 32.First optical receiver 313 forms the first packaging body A with the encapsulation of ambient light sensor 314, and this first
Packaging body A and 311 interval setting of the first optical transmitting set.It is to be appreciated that first optical transmitting set 311 also can also be encapsulated
Into first packaging body A.Or, first optical transmitting set 311 can also be packaged in one with the ambient light sensor 314
Body, first optical receiver 313 is separately provided.
Wherein, the first optical transmitting set 311 is used to send the first light L1 of the first polarization direction；First light is wavelength
More than the black light of 850nm, such as infrared light.
Fig. 3 is refer to, first optical transmitting set 311 includes the first optical transmitting set body 3111 and the first polaroid
3112.First polaroid 3112 is arranged on the light emitting path of the first optical transmitting set body 3111, in the present embodiment, and this
One polaroid 3112 is arranged on the exiting surface of the optical transmitting set body 3111.Certainly, first polaroid 3112 can also set
Put in the one side of the direction sensor cluster 31 of cover plate 32.The first optical transmitting set body 3111 is more than for sending wavelength
The black light of 850nm, such as infrared light.First polaroid 3112 is for the first optical transmitting set body 3111 sent
Light is converted to line polarized light, and its polarization direction is the first polarization direction.
Fig. 2 is continued referring to, the optics slide 312 is for changing to form the second of the second polarization direction first light L1
Light L2.Wherein, the optics slide 312 can be a quarter slide, or other have the coating of similar functions.This second
Light L2 forms the first reflection light L3 after obstacle reflection, the polarization of first reflection light L3 and second light L2
Direction is identical.
Wherein, first optical receiver 313 is used for the first reflected light L3 for receiving the second polarization direction, and filters out other
The light of polarization direction.
Fig. 4 is refer to, first optical receiver 313 is used to receive the first reflection light L2.First optical receiver 313 includes
First optical receiver body 3131 and the second polaroid 3132.Second polaroid 3132 is arranged at the first optical receiver sheet
On the incidence surface of body 3131.The polarization direction of second polaroid 3132 is the second polarization direction, and which is used for polarization direction not
Light for the second polarization direction is filtered out.
Fig. 2 is continued referring to, the cover plate 32 includes cover board body 321, photic zone 322, light shield layer 323, optics slide
312.The photic zone 322 is arranged at the one side of the direction sensor cluster 31 of the cover board body 321, and the light shield layer 323 is arranged
On the photic zone 322, so that the outer surface of the cover board body 321 is shown as the photic zone 322, and the screening is hidden
Photosphere 323.
The cover board body 321 is made using transparent material, for example, the cover board body 321 be glass cover-plate, the cover board body
321 can also be sapphire cover plate.The side of the direction of the cover board body 321 sensor cluster 31 offers a groove
3211, the optics slide 312 of the sensor cluster 31 is arranged in groove 3211.It is to be appreciated that in the cover plate sheet
Groove 3211 is opened up in the one side away from sensor cluster 31 of body 321, and the optics slide 312 of sensor cluster 31 is installed
In groove 3211.
The first area 32a of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in the non-of panel 20
On viewing area, the second area 32b of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in panel 20
Non-display area on.
The photic zone 322 is arranged at the first area 32a of the cover board body 321.In the present embodiment, the photic zone 322
With three layers of printing opacity sublayer 3221, certainly, which can also be one layer, two layers or other numbers of plies, as long as its thickness is suitable.Often
One printing opacity sublayer 3221 is white ink spraying or prints and formed.Certainly, which can also be using colors such as light blue, light green colors
Shallower ink.The photic zone 322 requires to reach more than 80% more than the transmitance of 850nm black lights for wavelength, for
Wavelength is required in 2%-10% less than the transmitance of the visible ray of 550nm.The light shield layer 323 is arranged on the photic zone 322, should
Light shield layer 323 is sprayed using black ink or is printed and formed.Certainly, which can also adopt other materials, need to select right as far as possible
The preferable material of absorbing properties.Transmission region 323a is provided with the light shield layer 323.The light shield layer 323 is mainly used in blocking
Each components and parts in housing 10 such as sensor cluster, CPU etc..Transmission region 323a on the light shield layer 323 is used for for passing
Sensor component 31 detects optical signal to mobile terminal 1 external emission, and for passing through the transmission region for the sensor cluster 31
The reflected signal of the optical signal that reception is launched, and ambient light signal.The photic zone 322 be used for for the detection optical signal,
Reflected signal and ambient light signal pass through.The photic zone 322 is additionally operable to the light shield layer 323 and the transparent area for arranging thereon
Domain 323a is sheltered from so that the cover board body 321 from the appearance gets up to present the photic zone 323.
The first light that the sensor cluster 31 sends sequentially passes through transmission region 323a on the light shield layer 323, printing opacity
Layer 322 and optics slide 312, and the second light L2 of the second polarization direction is converted to when through optics slide 312, this
Two light L2 pass through cover board body 321, then reflect to form the first reflection light L3 via obstacle 70, first reflection light
The transmission region 323a that L3 is sequentially passed through on the cover board body 321, photic zone 322 and the light shield layer 323 is injected into the sensing
Device assembly 31, first optical receiver 311 receive first reflection light L3.
Wherein, transmission region 323a can be the through hole being opened on the light shield layer 323, it is possible to understand that ground, the through hole
In can also fill light transmissive material, such as with 322 identical material of photic zone.Photic zone 322 covers the saturating of the light shield layer 323
Light region 323a.
In the present embodiment, transmission region 323a includes the first printing opacity subregion 3231 and the second printing opacity subregion
3232.First optical receiver 313,314 phase of ambient light sensor of the first printing opacity subregion 3231 and the sensor cluster 31
Right, the second printing opacity subregion 3232 is relative successively with first optical transmitting set 311 and the optics slide 312.Wherein, this
One printing opacity subregion 3131 and the second printing opacity subregion 3232 are through hole.
During work, first optical transmitting set 311 sends the first light L1 of the first polarization direction, and first light L1 is passed through
Optics slide is converted to the second light L2 of the second polarization direction, and the second light L2 forms first after the reflection of obstacle 70
Reflection light L3, first reflection light L3 are received by first optical receiver 313, and are converted to the corresponding signal of telecommunication, circuit
According to the signal of telecommunication, plate 315 judges that mobile terminal 1 is to be close to the obstacle 70 to be also remote from the obstacle 70.If the signal of telecommunication
Then judge that the mobile terminal 1 is close to the obstacle more than a threshold value, movement end is judged if the signal of telecommunication is less than the threshold value
End is away from the obstacle 70.
The present embodiment is inclined by the first light L1 that the first optical transmitting set sends is converted to second using optics slide
Shake the second light L2 in direction, and first that the second light L2 generates the second polarization direction after reflecting through obstacle 70 is anti-
Light L3 is penetrated, and the light of diffraction does not pass through the optics slide 312 therefore its polarization direction or first in photic zone 322
Polarization direction, therefore first optical receiver 313 can only receive the first reflection light L3 of the second polarization direction, without connecing
The diffracted light of the first polarization direction is received, such that it is able to avoid diffracted light from entering in first optical receiver 313, causes this
The basic value of the first optical receiver 313 is larger, the beneficial effect with the detection sensitivity for improving first optical receiver 313.
Fig. 5 is refer to, in other embodiments of the sensor cluster 31, the sensor cluster 31 includes that the first light is sent out
Emitter 311, the first optical receiver 313, ambient light sensor 314, circuit board 315 and the second optical transmitting set 316.The cover plate 32
With an optics slide 312.First optical transmitting set 311, the first optical receiver 313, ambient light sensor 314, the second light are sent out
Emitter 316 is may be contained within the circuit board 315, and is electrically connected with the circuit board 315.The optics slide 312 be arranged at this first
On the light transmission path of optical receiver 313 and the second optical transmitting set 316.In the present embodiment, which is installed in the cover plate 32.
First optical receiver 313, the second optical transmitting set 316 and ambient light sensor 314 are packaged in the first packaging body A, and this
One packaging body A and 311 interval setting of the first optical transmitting set.
It is to be appreciated that the first optical receiver 313 and first optical transmitting set 311 can also be packaged in one, should
Second optical transmitting set 316 is separately provided.
Ground is will be understood, first optical transmitting set 311 can also be encapsulated into first packaging body A.
Wherein, the first optical transmitting set 311 is identical with the first optical transmitting set 311 in embodiment illustrated in fig. 2 therefore do not repeat.
Second optical transmitting set 316 is used for the 3rd light L4 for launching the first polarization direction, and its structure is launched with the first light
The structure of device 311 is identical therefore does not repeat.
The optics slide 312 includes the first smooth scholar's slide 312a and sub- slide 312b of the second light.
Wherein, first smooth scholar's slide 311a is arranged on the transmission path of first optical transmitting set 311, its be used for by
First light L1 changes the second light L2 to form the second polarization direction.Wherein, first smooth scholar's slide 312a can be four
/ mono- slide, or other have the coating of similar functions.It is anti-that the second light L2 forms first after obstacle reflection
Light L3 is penetrated, first reflection light L3 is identical with the polarization direction of second light L2.
Second smooth scholar's slide 311b is arranged on the transmission path of second optical transmitting set 316, and which is used for the 3rd
Light L4 changes the 4th light L5 to form the second polarization direction.Wherein, second smooth scholar's slide 312b can for four/
One slide, or other have the coating of similar functions.4th light L5 forms the second reflected light after obstacle reflection
Line L6, second reflection light L6 are identical with the polarization direction of the 4th light L5.
Wherein, first optical receiver 313 is used for the first reflected light L3 for receiving the second polarization direction, and the second polarization
Second reflection light L6 in direction, and filter out the light of other polarization directions.
The cover plate 32 includes cover board body 321, photic zone 322, light shield layer 323 and optics slide 312.The photic zone
The one side of the 322 direction sensor clusters 31 for being arranged at the cover board body 321, the light shield layer 323 are arranged at the photic zone 322
On.
The cover board body 321 is made using transparent material, and for example, the cover board body 321 is glass cover-plate.The cover board body
The side of the 321 direction sensor cluster 31 offers a groove 3211, and the optics slide 312 of the sensor cluster 31 is installed
In groove 3211.It is to be appreciated that opening up recessed in the one side away from sensor cluster 31 of the cover board body 321
Groove, and the optics slide 312 of sensor cluster 31 is arranged in groove 3211.
Wherein, the groove 3211 includes the first sub- groove 3211a being separated from each other and the second sub- groove 3211b, and this
One smooth scholar's slide 312a is arranged in the first sub- groove 3211a, and it is second sub that second smooth scholar's slide 312b is arranged at this
In groove 3211b.
The first area 32a of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in the non-of panel 20
On viewing area, the second area 32b of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in panel 20
Non-display area on.
The photic zone 322 is arranged at the first area of the cover board body 321, and in the present embodiment, the photic zone 322 has
Three layers of printing opacity sublayer 3221, certainly, which can also be one layer, two layers or other numbers of plies, as long as its thickness is suitable.It is each
Photon sphere 3221 is white ink spraying or prints and formed.Certainly, which can also be shallower using colors such as light blue, light green colors
Ink.The photic zone 322 requires to reach more than 80% more than the transmitance of 850nm black lights for wavelength, for wavelength
The transmitance of the visible ray less than 550nm is required in 2%-10%.
The light shield layer 323 is arranged on the photic zone 322, and the light shield layer 323 is sprayed using black ink or printed and formed.
Certainly, which can also adopt other materials, need to select to the preferable material of absorbing properties as far as possible.Set on the light shield layer 323
It is equipped with transmission region 323a.Photic zone 322 covers the transmission region 323a of the light shield layer 323.
The first light L1 that first optical transmitting set 311 of the sensor cluster 31 sends is sequentially passed through on the light shield layer 323
Transmission region 323a, photic zone 322 and optics slide 312 first smooth scholar's slide 311a, and through the first optics
The second light L2 of the second polarization direction is converted to during sub- slide 311a, second light L2 passes through cover board body 321, Ran Houjing
First reflection light L3 is reflected to form by obstacle 70, first reflection light L3 sequentially passes through the cover board body 321, photic zone
322 and the light shield layer 323 on transmission region 323a be injected into the sensor cluster 31, first optical receiver 311 is received
To first reflection light L3.
The 3rd light L4 that second optical transmitting set 316 of the sensor cluster 31 sends is sequentially passed through on the light shield layer 323
Transmission region 323a, photic zone 322 and optics slide 312 second smooth scholar's slide 312b, and through the second optics
The 4th light L5 of the second polarization direction is converted to during sub- slide 312b, the 4th light L5 passes through cover board body 321, Ran Houjing
Second reflection light L6 is reflected to form by obstacle 70, second reflection light L6 sequentially passes through the cover board body 321, photic zone
322 and the light shield layer 323 on transmission region 323a be injected into the sensor cluster 31, first optical receiver 311 is received
To first reflection light L3.
Wherein, transmission region 323a can be the through hole being opened on the light shield layer 323, it is possible to understand that ground, the through hole
In can also fill light transmissive material, such as with 322 identical material of photic zone.
In the present embodiment, transmission region 323a includes the first printing opacity subregion 3231, the second printing opacity subregion 3232
And the 3rd printing opacity subregion 3233.First optical receiver 313 of the first printing opacity subregion 3231 and the sensor cluster 31,
Ambient light sensor 314 is relative, the second printing opacity subregion 3232 and first optical transmitting set 311 and the optics slide 312
First smooth scholar's slide 311a it is relative successively.3rd printing opacity subregion 3233 and second optical transmitting set 316 and this
Two smooth scholar's slide 312b are relative.
Wherein, the first printing opacity subregion 3131 and the second printing opacity subregion 3232 are through hole.
During work, the first light L1 that the first optical transmitting set 311 sends sequentially passes through the transmission region on the light shield layer 323
First smooth scholar's slide 311a of 323a, photic zone 322 and optics slide 312, and passing through first smooth scholar's slide 311a
When be converted to the second light L2 of the second polarization direction, second light L2 passes through cover board body 321, then via obstacle 70
The first reflection light L3 is reflected to form, first reflection light L3 sequentially passes through the cover board body 321, photic zone 322 and is somebody's turn to do
Transmission region 323a on light shield layer 323 is injected into the sensor cluster 31, and it is first anti-that first optical receiver 311 receives this
Penetrate light L3.The 3rd light L4 that second optical transmitting set 316 of the sensor cluster 31 sends is sequentially passed through on the light shield layer 323
Transmission region 323a, photic zone 322 and optics slide 312 second smooth scholar's slide 312b, and through the second optics
The 4th light L5 of the second polarization direction is converted to during sub- slide 312b, the 4th light L5 passes through cover board body 321, Ran Houjing
Second reflection light L6 is reflected to form by obstacle 70, second reflection light L6 sequentially passes through the cover board body 321, photic zone
322 and the light shield layer 323 on transmission region 323a be injected into the sensor cluster 31, first optical receiver 311 is received
To first reflection light L3.The circuit board 315 is according to the conversion of first reflection light L3 and the second reflection light L6
The signal of telecommunication, judges that the mobile terminal 1 is to be close to the obstacle 70 to be also remote from the obstacle 70, such as opens first light simultaneously and sends out
When emitter and the second optical transmitting set, according to the electricity that first reflection light L3 and the second reflection light L6 collective effect are changed
Signal when the signal of telecommunication is more than predetermined value, judges that the mobile terminal 1 is close to obstacle 70, when the signal of telecommunication is less than judging
During predetermined value, judge the mobile terminal away from the obstacle 70.When mobile terminal 1 judges which away from the stop under call scene
After thing 70,20 bright screen of display floater is automatically controlled, when mobile terminal 1 judges which near the obstacle 70 under call scene
Afterwards, automatically control the display floater 20 and put out screen
The present embodiment by using optics slide 312 change the first light L1 for sending of first optical transmitting set and this
The 3rd light L4 that two optical transmitting sets send so that the first reflection light L3 and the second reflection light L6 that correspondence is generated is
Second polarization direction, and the diffracted light of the first light L1 and the second light L2 in photic zone 322 is the first polarization side
To, and the first optical receiver 311 has the function of filtering the light beyond the second polarization direction so that the diffracted light cannot enter
Enter in first optical receiver 311, the beneficial effect with the detection sensitivity for improving first optical receiver 313.
Fig. 6 is refer to, the sensor cluster 31 includes that the first optical transmitting set 311, the first optical receiver 313, ambient light are passed
Sensor 314, circuit board 315 and the second optical receiver 317.First optical transmitting set 311, the first optical receiver 313, ambient light
Sensor 314, the second optical receiver 317 are may be contained within the circuit board 315, and are electrically connected with the circuit board 315.The optics glass
Piece 312 is arranged on the light transmission path of first optical receiver 313.In the present embodiment, the cover plate 32 has an optics glass
Piece 312.
First optical transmitting set 311 forms the second packaging body B, first light-receiving with the encapsulation of the second optical receiver 317
Device 313 forms the first packaging body A with the encapsulation of ambient light sensor 314.
It is to be appreciated that first optical transmitting set 311 and first optical receiver 313 can be packaged in one, should
Second optical receiver 7 is packaged in one with the ambient light sensor 314.
It will of course be understood that ground, can also be by the first optical transmitting set 311, second optical receiver 317, the first light-receiving
Device 313 is packaged together with the ambient light sensor 314, forms a packaging body.
Wherein, the first optical transmitting set 311 is used to send the first light L1 of the first polarization direction；First light is wavelength
More than the black light of 850nm, such as infrared light.First optical transmitting set 311 is launched with the first light in embodiment illustrated in fig. 2
311 structure of device is identical, therefore does not repeat.
The optics slide 312 to form the second light L2/L8 of the second polarization direction for the first light L1/L7 is changed.
Wherein, the optics slide 312 can be a quarter slide, or other have the coating of similar functions.Second light L2/
L8 forms the first reflection light L3 and the 3rd reflection light L9 after obstacle reflection, first reflection light L3 and the
Three reflection lights L9 are identical with the polarization direction of second light L2/L8.
Wherein, first optical receiver 313 is used to receiving the first reflection light L3 of the second polarization direction and the 3rd anti-
Light L9 is penetrated, and filters out the light of other polarization directions.
First optical receiver 313 is used to receive the first reflection light L3 and the 3rd reflection light L9.First light-receiving
Device 313 is identical with the structure of the first optical receiver 313 in embodiment illustrated in fig. 2, therefore does not repeat.
Fig. 6 is continued referring to, the cover plate 32 includes cover board body 321, optics slide 312, photic zone 322 and light shield layer
323.The photic zone 322 is arranged at the one side of the direction sensor cluster 31 of the cover board body 321, and the light shield layer 323 is arranged
On the photic zone 322.
The cover board body 321 is made using transparent material, and for example, the cover board body 321 is glass cover-plate.The cover board body
The side of the 321 direction sensor cluster 31 offers a groove 3211, and the optics slide 312 of the sensor cluster 31 is installed
In groove 3211.It is to be appreciated that opening up recessed in the one side away from sensor cluster 31 of the cover board body 321
Groove, and the optics slide 312 of sensor cluster 31 is arranged in groove 3211.
The first area 32a of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in the non-of panel 20
On viewing area, the second area 32b of the cover plate 32 that is to say that the first area 32a of the cover board body 321 is covered in panel 20
Non-display area on.
The photic zone 322 is arranged at the first area of the cover board body 321, and in the present embodiment, the photic zone 322 has
Three layers of printing opacity sublayer 3221, certainly, which can also be one layer, two layers or other numbers of plies, as long as its thickness is suitable.It is each
Photon sphere 3221 is white ink spraying or prints and formed.Certainly, which can also be shallower using colors such as light blue, light green colors
Ink.The photic zone 322 requires to reach more than 80% more than the transmitance of 850nm black lights for wavelength, for wavelength
The transmitance of the visible ray less than 550nm is required in 2%-10%.
The light shield layer 323 is arranged on the photic zone 322, and the light shield layer 323 is sprayed using black ink or printed and formed.
Certainly, which can also adopt other materials, need to select to the preferable material of absorbing properties as far as possible.Set on the light shield layer 323
It is equipped with transmission region 323a.The first light L1/L7 that the sensor cluster 31 sends sequentially passes through the printing opacity on the light shield layer 323
Region 323a, photic zone 322 and optics slide 312, and the of the second polarization direction is converted to when through optics slide 312
Two light L2/L8, second light L2/L8 pass through cover board body 321, then reflect to form the first reflected light via obstacle 70
Line L3 and the 3rd reflection light L9, first reflection light L3 and the 3rd reflection light L9 sequentially pass through the cover board body
321st, the transmission region 323a on photic zone 322 and the light shield layer 323 is injected into the sensor cluster 31, first light-receiving
Device 311 receives first reflection light L3, and second optical receiver 317 receives the 3rd reflection light L9.
Wherein, transmission region 323a can be the through hole being opened on the light shield layer 323, it is possible to understand that ground, the through hole
In can also fill light transmissive material, such as with 322 identical material of photic zone.Photic zone 322 covers the saturating of the light shield layer 323
Light region 323a.
In the present embodiment, transmission region 323a includes the first printing opacity subregion 3231 and the second printing opacity subregion
3232.First optical receiver 313,314 phase of ambient light sensor of the first printing opacity subregion 3231 and the sensor cluster 31
Right, the second printing opacity subregion 3232 is just right with first optical transmitting set 311, the second optical receiver, first optical transmitting set 311
It is relative successively with the optics slide 312.Wherein, the first printing opacity subregion 3131 and the second printing opacity subregion 3232 are
Through hole.
During work, the first reflection light L3 for receiving is converted to corresponding first signal of telecommunication by the first optical receiver 311,
The 3rd reflection light L9 for receiving is converted to corresponding second signal of telecommunication by second optical receiver 317, the circuit board 315
Judge that according to the value of first signal of telecommunication and second signal of telecommunication mobile terminal 1 is to be close to the obstacle 70 to be also remote from this
Obstacle 70.When first signal of telecommunication is close to threshold interval positioned at first or second signal of telecommunication is close to threshold zone positioned at second
Between when, judge that the mobile terminal 1 is close to the obstacle 70, when first signal of telecommunication is located at this first away from threshold interval, and should
Second signal of telecommunication be located at this second away from threshold interval when, then judge that the mobile terminal 1, away from the obstacle 70, works as mobile terminal
After 1 judges which away from the obstacle 70 under call scene, 20 bright screen of display floater is automatically controlled, when mobile terminal 1 is logical
Words scene judges which, after the obstacle 70, automatically controls the display floater 20 and put out screen.
The embodiment of the present invention is by changing the first light L1/L7 that first optical transmitting set 311 sends using optics slide
So that the first reflection light L3/L9 that correspondence is generated is the second polarization direction, and the first light L1/L7 is in photic zone 322
Diffracted light be the first polarization direction, and the first optical receiver 313 and the second optical receiver 317 have and filter the second polarization
The function of the light beyond direction so that the diffracted light cannot be introduced into first optical receiver 313 and the second light-receiving
In device 317, the beneficial effect with the detection sensitivity for improving first optical receiver 313 and the second optical receiver 317.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement
Mode ", " example ", " specific example ", or the description of " some examples " etc. mean what is described with reference to the embodiment or example
Specific features, structure, material or feature are contained at least one embodiment or example of the present invention.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the concrete spy of description
Levy, structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
In sum, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
Claims (20)
1. a kind of cover plate, it is characterised in that including cover board body, photic zone, light shield layer and optics slide, described euphotic
Absorbance of the absorbance more than light shield layer, the photic zone are arranged in the one side of cover board body, and the light shield layer is arranged at
On photosphere；
The light shield layer has a transmission region, and the photic zone covers the transmission region of light shield layer, so that the cover plate is outer
Side surface is shown as the photic zone, and hides the light shield layer；
The optics slide is arranged on the cover board body and just right with the local of the transmission region, for changing from institute
State the polarization direction that transmission region injects light therein.
2. cover plate according to claim 1, it is characterised in that the transmission region be opened in it is logical on the light shield layer
Hole.
3. cover plate according to claim 2, it is characterised in that light transmissive material is filled with the through hole.
4. the cover plate according to any one of claim 1-3, it is characterised in that the photic zone and the light shield layer are ink
Layer.
5. the cover plate according to any one of claim 1-4, it is characterised in that the photic zone is white ink layer, described
Light shield layer is black ink layer.
6. the cover plate according to any one of claim 1-5, it is characterised in that the transmission region includes for being separated from each other
One printing opacity subregion and the second printing opacity subregion, the first printing opacity subregion are just right with the optics slide.
7. the cover plate according to any one of claim 1-6, it is characterised in that the optics slide is a quarter slide.
8. the cover plate according to any one of claim 1-7, it is characterised in that the direction photic zone of the cover board body
One side arrange it is fluted, the optics slide is arranged in the groove.
9. a kind of mobile terminal, it is characterised in that including housing, cover plate, display floater and sensor cluster, the sensor
Component is arranged in the housing, and the display floater is arranged on the housing, and the cover plate is covered in the display floater
On, the cover plate is the cover plate described in any one of claim 1-7.
10. mobile terminal according to claim 9, it is characterised in that the sensor cluster includes the first optical transmitting set
And first optical receiver；
First optical transmitting set is used for the first light for sending the first polarization direction, and first light is through the optics glass
The second light of the second polarization direction is formed after piece, second light forms the first reflection light after obstacle reflection；
First optical receiver is used to receive first reflection light, and filters light not for the second polarization direction.
11. mobile terminals according to claim 10, it is characterised in that the sensor cluster is also launched including the second light
Device；
Second optical transmitting set is used for the 3rd light for sending the first polarization direction, and the 3rd light is through the optics glass
The 4th light of the second polarization direction is formed after piece, the 4th light forms the second reflection light after obstacle reflection；
First optical receiver is additionally operable to receive second reflection light.
12. mobile terminals according to claim 11, it is characterised in that first optical transmitting set is connect with first light
The distance between device is received less than the distance between second optical transmitting set and described first optical receiver.
13. mobile terminals according to claim 11 or 12, it is characterised in that first optical transmitting set and described first
Optical receiver is packaged in one.
14. mobile terminals according to claim 11 or 12, it is characterised in that second optical transmitting set and described first
Optical receiver is packaged in one.
15. mobile terminals according to claim 10, it is characterised in that the sensor cluster also includes the second light-receiving
Device；
Second light reflects through obstacle and also formed the 3rd reflection light, and second optical receiver is used to receive described
3rd reflection light, and filter light not for the second polarization direction.
16. mobile terminals according to claim 15, it is characterised in that first optical transmitting set is connect with first light
The distance between device is received less than the distance between the second optical receiver emitter and described first optical transmitting set.
17. mobile terminals according to claim 15 or 16, it is characterised in that second optical receiver and described first
Optical transmitting set is packaged in one.
18. mobile terminals according to claim 15 or 16, it is characterised in that first optical receiver and described first
Optical transmitting set is packaged in one.
19. mobile terminals according to any one of claim 10-18, it is characterised in that also including ambient light sensor；
The ambient light sensor is packaged in one with first optical transmitting set；Or, the ambient light sensor with it is described
First optical receiver is packaged in one.
20. mobile terminals according to any one of claim 9-19, it is characterised in that also including circuit board, the sensing
Device assembly is arranged on the circuit board and is electrically connected with the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107886.5A CN106584996B (en) | 2016-12-06 | 2016-12-06 | Cover board and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107886.5A CN106584996B (en) | 2016-12-06 | 2016-12-06 | Cover board and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106584996A true CN106584996A (en) | 2017-04-26 |
| CN106584996B CN106584996B (en) | 2019-02-12 |
Family
ID=58595072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107886.5A Active CN106584996B (en) | 2016-12-06 | 2016-12-06 | Cover board and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584996B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124841A (en) * | 2017-06-20 | 2017-09-01 | 青岛海信电器股份有限公司 | Electric equipment casing and its processing technology, electric equipment |
| CN107703639A (en) * | 2017-09-13 | 2018-02-16 | 维沃移动通信有限公司 | A kind of optical profile type device and mobile terminal |
| CN107818733A (en) * | 2017-11-22 | 2018-03-20 | 广东欧珀移动通信有限公司 | Display screen component and electronic equipment |
| WO2018196670A1 (en) * | 2017-04-27 | 2018-11-01 | Oppo广东移动通信有限公司 | Display screen, display device, and mobile terminal |
| CN108957428A (en) * | 2018-03-29 | 2018-12-07 | 青岛海信移动通信技术股份有限公司 | A kind of distance detection device and terminal |
| CN109064906A (en) * | 2018-09-30 | 2018-12-21 | 维沃移动通信有限公司 | A kind of euphotic cover plate and mobile terminal |
| CN109101083A (en) * | 2018-08-23 | 2018-12-28 | 维沃移动通信有限公司 | A kind of terminal |
| CN109801558A (en) * | 2019-03-15 | 2019-05-24 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN110825171A (en) * | 2017-04-27 | 2020-02-21 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
| CN110909583A (en) * | 2019-04-23 | 2020-03-24 | 深圳阜时科技有限公司 | Display device, fingerprint sensing system and electronic equipment |
| CN111698351A (en) * | 2019-03-14 | 2020-09-22 | 北京小米移动软件有限公司 | Mobile terminal |
| CN112419907A (en) * | 2019-08-21 | 2021-02-26 | 三星显示有限公司 | Display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883033A (en) * | 2011-07-12 | 2013-01-16 | Lg电子株式会社 | Mobile terminal with front camera and large LCD |
| CN104103650A (en) * | 2014-07-09 | 2014-10-15 | 日月光半导体制造股份有限公司 | Optical module, manufacturing method thereof and electronic device comprising optical module |
-
2016
- 2016-12-06 CN CN201611107886.5A patent/CN106584996B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883033A (en) * | 2011-07-12 | 2013-01-16 | Lg电子株式会社 | Mobile terminal with front camera and large LCD |
| CN104103650A (en) * | 2014-07-09 | 2014-10-15 | 日月光半导体制造股份有限公司 | Optical module, manufacturing method thereof and electronic device comprising optical module |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196670A1 (en) * | 2017-04-27 | 2018-11-01 | Oppo广东移动通信有限公司 | Display screen, display device, and mobile terminal |
| CN110825171B (en) * | 2017-04-27 | 2023-06-20 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
| CN110825171A (en) * | 2017-04-27 | 2020-02-21 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
| CN107124841B (en) * | 2017-06-20 | 2020-02-14 | 青岛海信电器股份有限公司 | Electrical equipment shell, processing technology thereof and electrical equipment |
| CN107124841A (en) * | 2017-06-20 | 2017-09-01 | 青岛海信电器股份有限公司 | Electric equipment casing and its processing technology, electric equipment |
| CN107703639A (en) * | 2017-09-13 | 2018-02-16 | 维沃移动通信有限公司 | A kind of optical profile type device and mobile terminal |
| CN107818733A (en) * | 2017-11-22 | 2018-03-20 | 广东欧珀移动通信有限公司 | Display screen component and electronic equipment |
| CN108957428A (en) * | 2018-03-29 | 2018-12-07 | 青岛海信移动通信技术股份有限公司 | A kind of distance detection device and terminal |
| CN108957428B (en) * | 2018-03-29 | 2022-10-21 | 青岛海信移动通信技术股份有限公司 | Distance detection device and terminal |
| CN109101083A (en) * | 2018-08-23 | 2018-12-28 | 维沃移动通信有限公司 | A kind of terminal |
| CN109101083B (en) * | 2018-08-23 | 2020-05-29 | 维沃移动通信有限公司 | Terminal |
| CN109064906A (en) * | 2018-09-30 | 2018-12-21 | 维沃移动通信有限公司 | A kind of euphotic cover plate and mobile terminal |
| CN111698351A (en) * | 2019-03-14 | 2020-09-22 | 北京小米移动软件有限公司 | Mobile terminal |
| CN109801558A (en) * | 2019-03-15 | 2019-05-24 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN110909583A (en) * | 2019-04-23 | 2020-03-24 | 深圳阜时科技有限公司 | Display device, fingerprint sensing system and electronic equipment |
| CN112419907A (en) * | 2019-08-21 | 2021-02-26 | 三星显示有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106584996B (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106584996A (en) | Cover plate and mobile terminal | |
| CN111240526B (en) | Display screen, display device and mobile terminal | |
| US10650789B2 (en) | Method and apparatus for controlling display screen statuses | |
| US20180211634A1 (en) | Method of controlling display screen states, and apparatus | |
| CN106933415B (en) | A kind of sensor module and terminal | |
| CN106850989B (en) | Display screen condition control method and device | |
| CN106444997A (en) | Sensor component, cover plate component and mobile terminal | |
| CN106385511A (en) | Sensor module, panel assembly and mobile terminal | |
| CN110825171A (en) | Display screen, display device and mobile terminal | |
| CN107135290A (en) | A kind of sensor cluster, cover plate assembly, display assembly and terminal | |
| CN107064948A (en) | Sensor module and mobile terminal | |
| CN106385475A (en) | Sensor assembly, cover plate assembly and terminal | |
| CN106453725A (en) | Terminal | |
| CN107992163A (en) | Display screen, display screen component and electronic equipment | |
| CN106506746A (en) | A kind of panel, sensor cluster and mobile terminal | |
| CN107968854A (en) | Electronic equipment | |
| CN106444998A (en) | Panel, sensor assembly and mobile terminal | |
| CN106453723A (en) | Sensor component and terminal | |
| CN108008765A (en) | Electronic equipment | |
| CN106774656A (en) | Sensor cluster, cover plate, mobile terminal and terminal control method | |
| CN106550072A (en) | Cover plate assembly and terminal | |
| CN206136063U (en) | Sensor module , Panel components and mobile terminal | |
| CN206686222U (en) | Sensor cluster and mobile terminal | |
| CN106775137A (en) | Proximity test method, device and mobile terminal | |
| CN106774653A (en) | A kind of terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant before: Guangdong OPPO Mobile Communications Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |