CN203773526U - Round projection capacitive touch screen - Google Patents
Round projection capacitive touch screen Download PDFInfo
- Publication number
- CN203773526U CN203773526U CN201420113589.1U CN201420113589U CN203773526U CN 203773526 U CN203773526 U CN 203773526U CN 201420113589 U CN201420113589 U CN 201420113589U CN 203773526 U CN203773526 U CN 203773526U
- Authority
- CN
- China
- Prior art keywords
- layer
- circle
- screen
- touch screen
- capacitive touch
- 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.)
- Expired - Lifetime
Links
- 230000006698 induction Effects 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 230000001939 inductive effect Effects 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- -1 acryl Chemical group 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
Abstract
The utility model discloses a round projection capacitive touch screen. The round projection capacitive touch screen comprises a panel and an induction function sheet, wherein the panel is placed on the induction function sheet, the induction function sheet comprises a substrate, an induction pattern layer, a shielding layer, a circuit layer, an OC1 layer and an OC2 layer, the induction pattern layer is separated from the shielding layer by the OC2 layer, the OC1 layer is located between the shielding layer and the circuit layer, the circuit layer is placed on the substrate, the induction pattern layer comprises N layer circles, a circle with the radius of R2 is designed at the position of a circle center of the induction pattern layer to serve as a first layer circle, the inner diameter of an N<th> layer circle is formed by outwards expanding R1 on the basis of the outer diameter of an (N-1)th layer circle, the outer diameter of the N<th> layer circle is formed by outwards expanding R2 on the basis of the inner diameter of the N<th> layer circle, and N is larger than 1. The round projection capacitive touch screen has the advantages that a rectangular structure of the touch screen is expanded into a round structure, the current condition of single structures of touch screens at the present stage is made up to a certain extent, and the requirement of the market for specially-shaped touch screens is met.
Description
Technical field
The utility model relates to a kind of projected capacitive touch screen, relates in particular to a kind of projected capacitive touch screen of circle.
Background technology
General touch screen technology comprises and is applicable to the resistive touch screen of mobile device and consumption electronic product and projected capacitive (projected capacitive) touch-screen and surface capacitance type (surface capacitive) touch-screen, surface acoustic wave (SAW) touch-screen and infrared touch panel for other application.Wherein projected capacitive touch screen is because possess the function of multiple point touching, so yield unusually brilliant results in consumer-electronics applications.In projected capacitive touch screen, be provided with the conductive layer being overlying on base material, conductive layer is generally ITO conductive layer (two-layer), on every layer of conductive layer, is distributed with electrode strip, and one deck is as row matrix, and one deck is as column matrix.Draw at the wire for end points of each strip electrode (can by electroplating and printing two kinds of modes and process), then by flexible PCB, wire is drawn with external circuit control chip and is connected.The row of the internal electrode of projected capacitive touch screen and row, column and row, or the electric capacity that can produce between row and row.Its principle of work is to be touched and changed the capacitance profile of electrode strip in touch place by staff, thereby be identified.
Along with popularizing gradually of smart mobile phone, almost each famous brand has all been released the mobile phone with projected capacitive touch screen, and screen is increasing.Most of cellies may hesitate to some extent on brand is selected, but substantially all can select to buy touch-screen mobile phone.Along with progressively popularizing of projected capacitive touch screen mobile phone, this technology has replaced four-wire resistance type touch screen technology gradually becomes the market mainstream.In fact,, although consumer understands touch-screen and be few, once contrast was used projected capacitive touch screen and four-wire resistance type touch screen, better projected capacitive touch screen of effect sense (feel) is just bound to select to touch.
Because the reason of principle of work, the functional areas of existing touch-screen are all the patterns of rectangle, in application, it has the restriction of a lot of occasions, causes now no matter be that smart mobile phone or panel computer are all faced a same problem, and that is exactly similar, outward appearance similar of function.Therefore release the task of top priority that a distinguished product is exactly current each producer, so far, there is having the touch-screen of radian, also has transparent display screen etc., and also have circular LCDs to emerge, but but do not have can be supporting with it circular touch-screen, therefore the utility model provide a kind of circle projected capacitive touch screen come mate with this special display screen.
Summary of the invention
The technical problems to be solved in the utility model is, single for touch screen structure in prior art, can not meet the defects such as the demand of market to special-shaped touch-screen, and a kind of circular projected capacitive touch screen that can mate with existing circular display screen is provided.
The utility model solves the technical scheme that its technical matters adopts: a kind of projected capacitive touch screen of circle, comprise panel and inducing function sheet, panel is placed on inducing function sheet, inducing function sheet comprises substrate, induction patterned layer, screen layer, line layer, OC1 layer and OC2 layer, between induction patterned layer and screen layer, separate with OC2 layer, OC1 layer is between screen layer and line layer, and line layer is placed on substrate; Induction patterned layer comprises N ring layer circle, is R at a radius of circle centre position design of induction patterned layer
2circle as the 1st ring layer, the internal diameter of N ring layer circle is to extend out R on the basis of N-1 ring layer circle external diameter
1form, on the basis of N ring layer circle internal diameter, extend out R
2as the external diameter of N ring layer circle, N is greater than 1.
In the projected capacitive touch screen of circle described in the utility model, bonding by optical glue (LOCA) or optics adhesive tape (OCA) between panel and induction patterned layer.
In the projected capacitive touch screen of circle described in the utility model, on OC2 layer, OC1 layer and screen layer, be evenly distributed with aperture, and aperture on screen layer is larger than the aperture on OC2 and OC1 layer.
In the projected capacitive touch screen of circle described in the utility model, R
1be less than 1mm, R
2span be 4mm-6mm.
In the projected capacitive touch screen of circle described in the utility model, N ring layer circle is divided into 4*M sensor block, and M is greater than 1.
In the projected capacitive touch screen of circle described in the utility model, induction patterned layer, screen layer and line layer are respectively ITO induction patterned layer, ITO screen layer and ITO line layer.
The principle of work of touch-screen described in the utility model is: in touch-screen described in the utility model, N ring layer circle is divided into 4*M sensor block, using the 4*M of each a ring layer sensor block as an induction bar, in will an electric capacity in parallel when with hand or felt pen touch sensible piece time going to the original circuit of touch-screen, thereby the overall electric capacity in respective scan line is changed to some extent, then described touch-screen is just determined touch point coordinate position according to the capacitance variations before and after scanning, M is greater than 1, N and is greater than 1.
In touch-screen described in the utility model, panel can be tempered glass, PMMA(acryl) etc. known various materials, as optimal way, described material is tempered glass.
In touch-screen described in the utility model, described substrate can be selected glass, PC(polycarbonate) and the transparent material such as film.
In touch-screen described in the utility model, bonding by optical glue (LOCA) or optics adhesive tape (OCA) between panel and induction patterned layer, optical glue and optics adhesive tape are to be usually used in the bonding special adhesive of transparent optical element, there is water white transparency, transmittance reaches more than 90%, bonding strength is good, high clinging power, high weather-proof, water tolerance, high temperature resistant, uvioresistant and long-time use can not produce xanthochromia, the advantage such as peel off and rotten, therefore use optical glue and optics adhesive tape just can ensure that panel is larger with induction patterned layer bond strength, water tolerance, high temperature resistant and long-time use can not produce xanthochromia, peel off and rotten etc.
Improve as the one to technical scheme described in the utility model, on OC2 layer and OC1 layer, be evenly distributed with aperture, these apertures are the vias between induction patterned layer and line layer, on screen layer, be also evenly distributed with aperture, but the aperture on screen layer is more slightly bigger than the aperture on OC2 layer and OC1 layer, so just can avoid screen layer to follow induction patterned layer or line layer short circuit.
Improve as the another kind to technical scheme described in the utility model, N ring layer circle is divided into 4*M sensor block, wherein M is greater than 1, N is greater than 1, and each sensor block is independently controlled, touching one of them region can't affect the work in other regions, and this has just ensured that touch-screen described in the utility model can realize multiple point touching.
Preferably, induction patterned layer described in the utility model, screen layer and the selected material of line layer are ITO conductive film.ITO conductive film is the material that is coated with uniform tin indium oxide (being called for short ITO) conductive layer on transparent PET film substrate, by etch away unwanted ITO on conductive film with strong acid, makes segment as shown in Figure 2.
The utility model has the advantages that the projected capacitive touch screen that a kind of circle is provided, the touch-screen of traditional rectangular configuration has been expanded to circle by this touch-screen, make up more to a certain extent the single present situation of present stage touch screen structure, meet the demand of market to special-shaped touch-screen.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of inducing function sheet described in the utility model;
Fig. 2 is the design diagram (only illustrated 4 ring layers, the 5th ring layer by that analogy) of the touch piece of induction patterned layer;
Fig. 3 is the schematic diagram of OC1 layer and OC2 layer;
Fig. 4 is the schematic diagram of screen layer;
Fig. 5 is the schematic diagram of line layer;
Fig. 6 is comparative example's design proposal.
Now by as follows the label declaration in accompanying drawing: 1 is induction patterned layer, and 2 is screen layer, and 3 is line layer, and 4 is OC2 layer, and 5 is OC1 layer, and 6 is substrate.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, the structure of inducing function sheet described in the utility model as shown in Figure 1, inducing function sheet comprises the 3 layers of ITO conductive layer and the 2 layers of OC layer that on substrate and substrate, plate, 3 layers of ITO conductive layer are kept apart with 2 layers of OC layer, most surface be induction patterned layer 1, as the patterned layer of touch function, bottom one deck is line layer 2, middle one deck is screen layer 3, as the screen layer between induction patterned layer 1 and line layer 3.By the segment in touch sensible patterned layer 1, can identify the position of touch; As shown in Figure 3, OC1 layer 5 and OC2 layer 4 are all evenly distributed with aperture above, these apertures are as the via between induction patterned layer 1 and the line layer 3 of the superiors, OC2 layer 4 is screen layer 2 below, as shown in Figure 4, on screen layer 2, be also evenly distributed with aperture, these apertures are more slightly bigger than the hole on OC2 layer 4 and OC1 layer 5, so just can avoid dislocation to cause screen layer 2 with induction patterned layer 1 or line layer 3 short circuits; Bottom one deck is line layer 3, and as shown in Figure 5, main being responsible for of line layer 3 drawn circuit, and is connected with control chip.Induction patterned layer 1 comprises N ring layer circle, as shown in Figure 2, is R at a radius of circle centre position design of induction patterned layer 1
2circle as the 1st ring layer, then on the frame of the 1st ring layer, extend out R
1as the internal diameter of the 2nd ring layer circle, the external diameter of the 2nd ring layer circle is to extend out R on the basis in footpath therein
2, and then extend out R on the basis of the 2nd ring layer circle external diameter
1as the internal diameter of the 3rd ring layer circle, by that analogy, design the 3rd ring layer circle, the 4th ring layer circle, until N ring layer circle, N ring layer also needs to be divided into 4*M sensor block, in the present embodiment, R
1span be preferably 0-1mm, R
2preferred span is 4mm-6mm, M, N>1.
The 4*M of each a ring layer sensor block is defined as to an induction bar, and hand touches on this induction bar, and touch-screen described in the utility model will calculate the change in location within the scope of 360 degree in this ring layer circle.Each sensor block is independently controlled, and touching one of them region can't affect the work in other regions, so touch-screen described in the utility model can be realized multiple point touching, M>1.
Comparative example is as follows: as shown in Figure 6, prior art and embodiment difference be just, the functional areas of existing projected capacitive touch screen are all the patterns of rectangle, and the functional areas of projected capacitive touch screen described in the utility model are circular.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. a circular projected capacitive touch screen, comprise panel and inducing function sheet, described panel is placed on inducing function sheet, it is characterized in that, described inducing function sheet comprises substrate (6), induction patterned layer (1), screen layer (2), line layer (3), OC1 layer (5) and OC2 layer (4), between described induction patterned layer (1) and screen layer (2), separate with described OC2 layer (4), described OC1 layer (5) is positioned between described screen layer (2) and line layer (3), and described line layer (3) is placed on described substrate (6); Described induction patterned layer (1) comprises N ring layer circle, is R at a radius of circle centre position design of described induction patterned layer (1)
2circle as the 1st ring layer, the internal diameter of N ring layer circle is to extend out R on the basis of N-1 ring layer circle external diameter
1form, on the basis of described N ring layer circle internal diameter, extend out R
2as the external diameter of N ring layer circle, N is greater than 1.
2. the projected capacitive touch screen of circle according to claim 1, is characterized in that, bonding by optical glue or optics adhesive tape between described panel and induction patterned layer (1).
3. the projected capacitive touch screen of circle according to claim 1, it is characterized in that, on described OC2 layer (4), OC1 layer (5) and screen layer (2), be evenly distributed with aperture, and aperture on described screen layer (2) is larger than the aperture on OC2 layer (4) and OC1 layer (5).
4. the projected capacitive touch screen of circle according to claim 1, is characterized in that, described R
1be less than 1mm, R
2span be 4mm-6mm.
5. the projected capacitive touch screen of circle according to claim 1, is characterized in that, described N ring layer circle is divided into 4*M sensor block, and M is greater than 1.
6. the projected capacitive touch screen of circle according to claim 1, is characterized in that, described induction patterned layer (1), screen layer (2) and line layer (3) are respectively ITO induction patterned layer, ITO screen layer and ITO line layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113589.1U CN203773526U (en) | 2014-03-12 | 2014-03-12 | Round projection capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113589.1U CN203773526U (en) | 2014-03-12 | 2014-03-12 | Round projection capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773526U true CN203773526U (en) | 2014-08-13 |
Family
ID=51290690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113589.1U Expired - Lifetime CN203773526U (en) | 2014-03-12 | 2014-03-12 | Round projection capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110377183A (en) * | 2019-07-25 | 2019-10-25 | 南京华睿川电子科技有限公司 | A kind of Spherical capacitor formula touch screen and preparation method thereof |
| US10705632B2 (en) | 2018-02-05 | 2020-07-07 | AU Optronics (Suzhou)Corp., Ltd | Touch panel including steeped sensing lines |
| US10712860B2 (en) | 2017-10-16 | 2020-07-14 | AU Optronics (Suzhou) Corp., Ltd | Touch panel |
-
2014
- 2014-03-12 CN CN201420113589.1U patent/CN203773526U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10712860B2 (en) | 2017-10-16 | 2020-07-14 | AU Optronics (Suzhou) Corp., Ltd | Touch panel |
| US10705632B2 (en) | 2018-02-05 | 2020-07-07 | AU Optronics (Suzhou)Corp., Ltd | Touch panel including steeped sensing lines |
| CN110377183A (en) * | 2019-07-25 | 2019-10-25 | 南京华睿川电子科技有限公司 | A kind of Spherical capacitor formula touch screen and preparation method thereof |
| CN110377183B (en) * | 2019-07-25 | 2023-06-27 | 南京华睿川电子科技有限公司 | Spherical capacitive touch screen and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103092391B (en) | touch display, touch panel and manufacturing method thereof | |
| JP3190211U (en) | Touch device | |
| CN104793773B (en) | Touch LCD screen, touch screen cover board and its manufacturing method | |
| US20140042001A1 (en) | Panel with sensing structure and manufacturing method thereof | |
| US9423917B2 (en) | Capacitive touch panel | |
| US8921727B2 (en) | Double-layer electrode device | |
| CN201293893Y (en) | Display device with touch screen function | |
| CN203773526U (en) | Round projection capacitive touch screen | |
| CN103336639A (en) | Capacitive touch screen | |
| US20140168532A1 (en) | Polarizer structure | |
| CN203397325U (en) | Touch screen type solid state optical cement full-lamination module with PFF structure | |
| CN103336641A (en) | Capacitive touch screen and circuit lead-out method therefor | |
| CN203909741U (en) | Touch control display panel | |
| CN203909742U (en) | Touch control display panel | |
| CN203455796U (en) | Touch structure | |
| CN203909768U (en) | Touch device and covering module thereof | |
| US20150268779A1 (en) | Touch display device | |
| CN204009806U (en) | Contact panel | |
| CN104765509A (en) | Multiple-point capacitance touch screen of flexible bridging structure | |
| CN203433488U (en) | Touch-screen-type liquid optical cement full-lamination module of PFF structure | |
| CN203397324U (en) | Touch screen type solid state optical cement full-lamination module with GFF (Gain Flatness Filter) structure | |
| CN203433490U (en) | G+F structure touch screen type solid-state optical cement full bonding module | |
| CN203706170U (en) | GFF structure touch screen type liquid state optical cement full-bonding module | |
| CN204242135U (en) | Touch panel module | |
| CN203054806U (en) | Bendable capacitive touch screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |