CN104932748A - Touch screen and terminal equipment provided with touch screen - Google Patents
Touch screen and terminal equipment provided with touch screen Download PDFInfo
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- CN104932748A CN104932748A CN201510367450.9A CN201510367450A CN104932748A CN 104932748 A CN104932748 A CN 104932748A CN 201510367450 A CN201510367450 A CN 201510367450A CN 104932748 A CN104932748 A CN 104932748A
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Abstract
The invention relates to a touch screen and terminal equipment provided with the touch screen. The touch screen comprises a cover plate element, a touch control module and a fingerprint identification assembly, wherein the cover plate element comprises a first surface and a second surface which are opposite to each other; the touch control module is arranged on the second surface of the cover plate element, and comprises a conducting layer; the conducting layer comprises a touch area for touch sensing, and a fingerprint identification area which is molded together with the touch area and is used for identifying a first surface fingerprint; and the fingerprint identification assembly is positioned on the second surface, is adjacent to the touch control module, and is used for identifying the fingerprint of the first surface positioned on the fingerprint identification area. According to the touch screen, the touch control area and the fingerprint identification area are machined simultaneously with the same process; touch control is performed within the range of the touch area while fingerprint identification is performed in the fingerprint identification area; and repeated machining of the touch area and the fingerprint identification area is not required. Thus, the touch screen is simple and light in structure; the production steps are simplified; and the production cost is lowered effectively.
Description
Technical field
The present invention relates to touching device, particularly relate to a kind of touch-screen and be provided with the terminal device of this touch-screen.
Background technology
Touch-screen, as a kind of input media of man-machine interactive interface, is installed on various terminal device, is widely used in every field, in people's life and social development, plays more and more important role.
In order to realize the touch function of screen, therefore touch-screen is made up of sandwich construction, and structure is comparatively complicated.Further, due in the use procedure of terminal device, the personal information of storage gets more and more, and therefore needs device to be encrypted terminal device.Because the fingerprint of people is formed by nature-nurture acting in conjunction, its complexity is not only for differentiating, also there is uniqueness and unchangeability, therefore the cipher mode that fingerprint recognition adopts as some terminal devices is adopted, there is good security performance, and facilitate identifying simple and fast, facilitate the use of operator.
But at present, the touch-screen on market is generally more complicated sandwich construction, include the structure of the stacked settings such as fingerprint recognition layer and touch layer, and fingerprint recognition layer and touch layer are processed separately, need through multiple working procedure, manufacturing process is loaded down with trivial details, and adds the thickness of touch-screen.
Summary of the invention
Based on this, be necessary the problem complicated for touch screen structure, thickness is thicker, provide that a kind of structure is simple, the touch-screen of thinner thickness and be provided with the terminal device of this touch-screen.
A kind of touch-screen, comprising:
Cover component, comprises relative first surface and second surface;
Touch module, be located at the described second surface of described cover component, comprise conductive layer, described conductive layer comprises the touch area for touch sensible, and the fingerprint recognition region for identify described first surface fingerprint simultaneously shaping with described touch area; And
Fingerprint recognition assembly, is positioned at described second surface, and adjacent with described touch module, to identify the described fingerprint of the described first surface being positioned at described fingerprint recognition region.
Above-mentioned touch-screen, the second surface of cover component is all located at by touch module and fingerprint recognition assembly, touch area and fingerprint recognition region adopt identical processing technology to process simultaneously, cover component is made to be integrated with the function of touch and fingerprint recognition, touch control is carried out in the scope of touch area, fingerprint recognition is carried out within the scope of fingerprint recognition region, and without the need to repeating to process to touch area and fingerprint recognition region.Therefore, this touch screen structure is simply frivolous, simplifies production stage, effectively reduces production cost.
Wherein in an embodiment, described touch module and described fingerprint recognition assembly include circuit layer, and described circuit layer is arranged at the described second surface of described cover component.
Wherein in an embodiment, described circuit layer is etched in the described second surface of described cover component.
Wherein in an embodiment, described conductive layer comprises touch sensible electrode and touches drive electrode, and described touch sensible electrode is positioned at described second surface side.
Wherein in an embodiment, described touch sensible electrode is directly arranged at and touches drive electrode described in described second surface and be positioned at described touch sensible electrode away from described second surface side.
Wherein in an embodiment, described touch module also comprises the first insulation course and the second insulation course, described first insulation course is between described touch drive electrode and described touch sensible electrode, and described second insulation course is located at described touch sensible electrode away from described touch drive electrode side.
Wherein in an embodiment, described fingerprint recognition assembly is positioned at described touch module side.
Wherein in an embodiment, described fingerprint recognition assembly comprises fingerprint recognition chip, and described fingerprint recognition chip is installed on the described second surface side of described cover component.
Wherein in an embodiment, described fingerprint recognition chip nation is due to described second surface.
For a terminal device for fingerprint recognition sensing, comprise above-mentioned touch-screen, described terminal device is divided into viewing area and non-viewing area, and described touch module at least covers described viewing area.
Accompanying drawing explanation
Fig. 1 is the structural representation of the touch-screen of an embodiment;
Fig. 2 is the structural representation of the touch-screen of another embodiment;
Fig. 3 is for being provided with the schematic diagram of the terminal device of the touch-screen shown in Fig. 1.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, a kind of touch-screen 100 in this preferred embodiment, comprises cover component 120, touch module 140 and fingerprint recognition assembly 160.
Cover component 120 comprises relative first surface 122 and second surface 124.
Touch module 140 is located at the second surface 124 of cover component 120, comprises conductive layer 142.Conductive layer 142 comprises the touch area for touch sensible, and the fingerprint recognition region (not shown) for identify first surface 122 fingerprint simultaneously shaping with touch area.
Fingerprint recognition assembly 160 is positioned at second surface 124, and adjacent with touch module 140, to identify the fingerprint of the first surface 122 being positioned at fingerprint identification area territory.
Above-mentioned touch-screen 100, the second surface 124 of cover component 120 is all located at by touch module 140 and fingerprint recognition assembly 160, touch area and fingerprint recognition region adopt identical processing technology to process simultaneously, cover component 120 is made to be integrated with the function of touch and fingerprint recognition, touch control is carried out in the scope of touch area, fingerprint recognition is carried out within the scope of fingerprint recognition region, and without the need to repeating to process to touch area and fingerprint recognition region.Therefore, this touch-screen 100 structure is simply frivolous, simplifies production stage, effectively reduces production cost.
Refer to Fig. 3; when this touch-screen 100 is installed on the terminal device such as mobile phone, computer 500, cover component 120 is positioned at outermost layer, plays the effect of protection terminal device 500 inner member; and user, by touching cover component 120, can complete the various touch control operations to terminal device 500.First surface 122 is positioned at side outwardly, second surface 124 towards the side of the terminal device such as mobile phone, computer 500 inside, namely closer to the side of electronic devices and components.
Cover component 120 is made by transparent glass material.Preferably, unorganic glass can be adopted, such as calcium soda-lime glass or sillico aluminate glass manufacture.Because the coating performance of unorganic glass panel is higher, therefore conductive layer 142 can be formed better.Be appreciated that the material of cover component 120 is not limited thereto, also can adopt the cover component 120 of the material that other coating performance is high.
Touch module 140 and fingerprint recognition assembly 160 include circuit layer (not shown).Circuit layer is arranged at the second surface 124 of cover component 120.In the present embodiment, circuit layer is etched in second surface 124, so that the conductive layer 142 of touch module 140 and fingerprint recognition assembly 160 are connected external circuit.
The conductive layer 142 of touch module 140 comprises touch sensible electrode 1422 and touches drive electrode 1424.Touch sensible electrode 1422 is positioned at second surface 124 side, touches drive electrode 1424 and is positioned at touch sensible electrode 1422 away from second surface 124 side, and touch sensible electrode 1422 forms electric capacity with touch drive electrode 1424.
When pointing the touch area not touching conductive layer 142 corresponding on first surface 122, touching between drive electrode 1424 and touch sensible electrode 1422 and being in static balancing, there is mutual capacitance Co.When the touch area of conductive layer 142 corresponding in finger contact to the first surface 122 of touch-screen 100, finger produces coupling capacitance with touch drive electrode 1424 and touch sensible electrode 1422 respectively, makes the capacitance variations of sensing unit for (Co+ △ C).By to touching the lining by line scan of drive electrode 1424, the signal that touch sensible electrode 1422 exports can be made a response fast, can obtain position, corresponding touch point (i.e. the row-coordinate of touch point and row coordinate), realize the touch controllable function of touch-screen 100.
When the position in the fingerprint recognition region of conductive layer 142 corresponding on finger presses first surface 122, specific inductive capacity due to fingerprint ridge is 10 to 20 times of air, and therefore touch sensible electrode 1422 can be positioned at above detector gap according to fingerprint ridge or fingerprint paddy from the capacitive coupling touched between drive electrode 1424 different change.So, judge fingerprint ridge and fingerprint paddy, obtain fingerprint image, to carry out fingerprint collecting.
In the present embodiment, touch sensible electrode 1422 is directly arranged at second surface 124.Therefore, finger is only the thickness of cover component 120 with the distance of touch sensible electrode 1422, has higher sensitivity, ensure that accuracy and the efficiency of touch-control.
Particularly, conductive layer 142 is arranged on cover component 120 by gold-tinted processing procedure, and forms different patterns to be divided into touch area and fingerprint recognition region.Gold-tinted processing procedure is the photosensitive material by being coated in glass surface, and the part flowed to after overexposure, development shields to bottom, then carries out etching and the final process obtaining permanent figure.In another embodiment, conductive layer 142 is arranged on cover component 120 by laser technology.Because gold-tinted processing procedure and laser technology are the mature technology of this area, therefore do not repeat at this.
Conductive layer 142 can be made up of ITO (Indium Tin Oxides, tin indium oxide), metal, metal alloy, carbon nano-tube, Graphene and conducting polymer composite etc.
So, touch area and fingerprint recognition region adopt identical technological process to be produced on cover component 120 simultaneously and form different patterns, and without the need to making the conductive layer 142 in touch area and fingerprint recognition region respectively of gold-tinted processing procedure, decrease the number of times using gold-tinted processing procedure or laser technology, simplify the structure of technological process and this touch-screen 100, reduce production cost.
Fingerprint recognition assembly 160 is positioned at touch module 140 side, comprises fingerprint recognition chip 162.Fingerprint recognition chip 162 is installed on second surface 124 side of cover component 120.
Fingerprint recognition chip 162 nation is due to cover component 120, and so, the fingerprint that identifiable design touch module 140 is responded to, realizes the fingerprint identification function of touch-screen 100.Particularly, in the present embodiment, utilize and cover crystalline substance (FlipChip) conduction mode, fingerprint recognition chip 162 is directly aimed at the electrode on this cover component 120, utilize anisotropic conductive film material as the dielectric surface material engaged, make the electrode conduction of two kinds of binding object vertical direction.Wherein, anisotropic conductive film mainly comprises resin adhesive agent, conducting particles two large divisions, and conducting particles connection fingerprint recognition chip and cover component electrode between the two can be utilized to make it conducting.
So, fingerprint recognition chip 162 directly nation, due to the second surface 124 of touch-screen 100, decreases the material spent by laminating, and avoid adopt flexible PCB to carry out circuit connection and produce repeatedly around folding and hot pressing processing procedure, reduce production cost, extend serviceable life and stability.
Touch module 140 comprises the first insulation course 1426 and the second insulation course 1428.First insulation course 1426 is between touch drive electrode 1424 and touch sensible electrode 1422, and the second insulation course 1428 is located at receiving layer passage away from touch drive electrode 1424 side.In the present embodiment, the material of insulation course is silicon dioxide.
Above-mentioned touch-screen 100, cover component 120 unites two into one with the touch panel realizing recognition function, touch module 140 and fingerprint recognition assembly 160 are arranged at cover component 120 second surface 124, and the direct nation of fingerprint recognition chip 162 fixes on cover component 120, decrease circuit board around folding and the number of times of hot pressing processing procedure, and decrease the material needed for laminating.The conductive layer 142 of touch module 140 comprises touch area and fingerprint recognition region, carries out touch-control and fingerprint recognition, and adopts identical technique to make, and simplifies the manufacture craft of this touch-screen 100, saves production cost.
As shown in Figure 2, the second embodiment of the present invention provides a kind of touch-screen 300.The structure of this touch-screen 300 is roughly the same with above-mentioned touch-screen 300, comprises cover component 320, touch module 340 and fingerprint recognition assembly 360.
Cover component 320 comprises first surface 322 and second surface 324.Touch module 340 is located at the second surface 324 of cover component 320, to respond to the finger or pointer that are positioned at first surface 322.Fingerprint recognition assembly is positioned at second surface 324, and adjacent with touch module 340, to identify the fingerprint of the first surface 322 being positioned at touch module 340 scope.
Be with the difference of above-described embodiment one, in the present embodiment, conductive layer 342 is single layer structure, comprises the induction zone being arranged on same layer and the lead district (not shown) be electrically connected with induction zone.
Induction zone comprises the first induction pattern and the second induction pattern, and the adjacent and mutually insulated of pattern responded to by the first induction pattern and second.First induction pattern and the second induction pattern all comprise multiple grid cell, and grid cell comprises the node that many Grid Edges and adjacent Grid Edge are interconnected to form.
In the present embodiment, the shape of grid cell is rhombus, also can adopt the grid cell of other shape in other embodiments.The material of grid cell is copper, silver, aluminium or conducting polymer composite.
Induction zone comprises the left induction zone that is separated from each other setting and right by induction zone, and left induction zone and right induction zone include at least one first induction pattern and at least one the second induction pattern.
Lead district is located between left induction zone and right induction zone.Lead district comprises multiple lead-in wire bunch, and mutually insulated between lead-in wire bunch, lead-in wire bunch is responded to pattern be electrically connected with second.In the present embodiment, each lead-in wire bunch is interconnected by single-row grid cell and forms.Each lead-in wire bunch includes a portion, and connects the second induction pattern by branch portion.Connected by a public Grid Edge between adjacent two grid cells in each portion, and comprise two common node between adjacent two grid cells.
Lead-in wire bunch also comprises the cadre be connected with branch portion.Be parallel to each other between the cadre of each lead-in wire bunch, by cadre, branch portion caused the edge of conductive layer 342, then access printed circuit board by wire, thus the Signal transmissions produced because of capacitance variations induction zone is to circuit layer.
Conductive layer 342 in the present embodiment, relative to the conductive layer in embodiment one, technique is more simple, and has higher yields, without the need to using etch process, can not waste conductive layer 342 material, decreasing the discharge of heavy metal.
Be appreciated that the structure of conductive layer 342 is not limited thereto, can arrange as required.
Consult Fig. 1 and Fig. 3, the invention provides a kind of terminal device 500 for fingerprint recognition sensing, comprise the viewing area 520 and non-viewing area 540 that are provided with touch-screen 100.
Touch-screen 100 comprises the cover component 120 being located at viewing area 520 and non-viewing area 540, and cover component 120 comprises first surface 122 and second surface 124.Touch-screen 100 also comprises touch module 140 and fingerprint recognition assembly 160.Touch module 140 and fingerprint recognition assembly 160 include the circuit layer of the second surface 124 being arranged at cover component 120.
Touch module 140 is located at the second surface 124 of cover component 120, comprises conductive layer.This conductive layer comprises the touch area for touch sensible, and the fingerprint recognition region for identify first surface 122 fingerprint simultaneously shaping with touch area.
Fingerprint recognition assembly 160 is connected to touch module 140, comprises fingerprint recognition chip 162, is positioned at second surface 124, and adjacent with touch module 140.Particularly, fingerprint recognition chip 162 is positioned at second surface 124 side of cover component 120, and connects touch module 140 by circuit layer, and so, the fingerprint that identifiable design touch module 140 is responded to, realizes the fingerprint identification function of this terminal device 500.
Touch module 140 at least covers viewing area 520.In the present embodiment, touch module 140 covers viewing area 520 and non-viewing area 550, to identify the finger or pointer that are positioned at viewing area 520, and identifies the fingerprint of non-viewing area 550.
Fingerprint recognition chip 162 is positioned at non-viewing area 550, is provided with at least one deck ink layer (not shown) between the cover component 120 of non-viewing area 550 and conductive layer.Ink layer covers on the second surface 124 of cover component 120.
Particularly, ink layer can be white, black or other color, is printed on the second surface 124 of cover component 120 by seal typography.So, can fingerprint recognition chip 162 under covering lid panel element 120, make the color in this region and the solid colour in other region, form integral structure, aesthetic appeal.
In other embodiments, can not arrange ink layer as required, the transparent shape of cover component 120 is arranged.When cover component 120 adopts non-transparent material to make, also ink layer can be saved.
Touch-screen 100 is connected on cover component 120 by transparent optical cement.Transparent optical cement makes without base material by optics acryl glue, then at upper and lower bottom, more a kind of Double-face adhesive rubber alloy band without matrix material of one deck release film of respectively fitting.Clarity is high, and has high light transmittance (full light transmittance >99%), high adhesion force, high durable, water tolerance, high temperature resistant, uvioresistant, and long-time use can not produce yellow, stripping and rotten problem.
Above-mentioned terminal device 500, touch-screen 100 is set directly on substrate by optical cement, touch-screen 100 comprises and the touch module 140 that be arranged side by side and fingerprint recognition chip 162 parallel along cover component 120, without the need to arranging sandwich construction, decrease the thickness of touch-screen 100, because this reducing the integral thickness of terminal device 500, decreasing the manufacturing process flow of terminal device 500, effectively reducing production cost.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a touch-screen, is characterized in that, comprising:
Cover component, comprises relative first surface and second surface;
Touch module, be located at the described second surface of described cover component, comprise conductive layer, described conductive layer comprises the touch area for touch sensible, and the fingerprint recognition region for identify described first surface fingerprint simultaneously shaping with described touch area; And
Fingerprint recognition assembly, is positioned at described second surface, and adjacent with described touch module, to identify the described fingerprint of the described first surface being positioned at described fingerprint recognition region.
2. touch-screen according to claim 1, is characterized in that, described touch module and described fingerprint recognition assembly include circuit layer, and described circuit layer is arranged at the described second surface of described cover component.
3. touch-screen according to claim 2, is characterized in that, described circuit layer is etched in the described second surface of described cover component.
4. touch-screen according to claim 1, is characterized in that, described conductive layer comprises touch sensible electrode and touches drive electrode, and described touch sensible electrode is positioned at described second surface side.
5. touch-screen according to claim 4, is characterized in that, described touch sensible electrode is directly arranged at described second surface, and described touch drive electrode is positioned at described touch sensible electrode away from described second surface side.
6. touch-screen according to claim 4, it is characterized in that, described touch module also comprises the first insulation course and the second insulation course, described first insulation course is between described touch drive electrode and described touch sensible electrode, and described second insulation course is located at described touch sensible electrode away from described touch drive electrode side.
7. touch-screen according to claim 1, is characterized in that, described fingerprint recognition assembly is positioned at described touch module side.
8. touch-screen according to claim 7, is characterized in that, described fingerprint recognition assembly comprises fingerprint recognition chip, and described fingerprint recognition chip is installed on the described second surface side of described cover component.
9. touch-screen according to claim 8, is characterized in that, described fingerprint recognition chip nation is due to described second surface.
10., for a terminal device for fingerprint recognition sensing, it is characterized in that, comprise touch-screen as claimed in any one of claims 1 to 9 wherein, described terminal device is divided into viewing area and non-viewing area, and described touch module at least covers described viewing area.
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| CN201510367450.9A CN104932748A (en) | 2015-06-29 | 2015-06-29 | Touch screen and terminal equipment provided with touch screen |
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| CN201510367450.9A CN104932748A (en) | 2015-06-29 | 2015-06-29 | Touch screen and terminal equipment provided with touch screen |
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| CN105426003A (en) * | 2015-12-03 | 2016-03-23 | 关键应用科技股份有限公司 | Touch device with fingerprint recognition |
| CN106249961A (en) * | 2016-09-12 | 2016-12-21 | 京东方科技集团股份有限公司 | Touch the manufacture method of display screen, touch display screen and display device |
| CN106897712A (en) * | 2017-03-13 | 2017-06-27 | 广东欧珀移动通信有限公司 | Fingerprint module, display screen and mobile terminal |
| CN106934367A (en) * | 2017-03-13 | 2017-07-07 | 信利光电股份有限公司 | A kind of fingerprint identification device cover sheet and preparation method thereof and a kind of mobile terminal |
| CN108140109A (en) * | 2015-11-13 | 2018-06-08 | 赛普拉斯半导体公司 | The covering layer material of fingerprint sensor compatibility |
| CN108140111A (en) * | 2015-11-13 | 2018-06-08 | 赛普拉斯半导体公司 | The coating of compatible fingerprint sensor |
| CN109696977A (en) * | 2017-10-20 | 2019-04-30 | 南昌欧菲光科技有限公司 | Electronic device, touch screen and touch panel |
| US10832029B2 (en) | 2015-11-13 | 2020-11-10 | Cypress Semiconductor Corporation | Sensor-compatible overlay |
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| CN106934367A (en) * | 2017-03-13 | 2017-07-07 | 信利光电股份有限公司 | A kind of fingerprint identification device cover sheet and preparation method thereof and a kind of mobile terminal |
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Application publication date: 20150923 |
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