CN102117158B - Touch screen and touch device - Google Patents
Touch screen and touch device Download PDFInfo
- Publication number
- CN102117158B CN102117158B CN200910239507A CN200910239507A CN102117158B CN 102117158 B CN102117158 B CN 102117158B CN 200910239507 A CN200910239507 A CN 200910239507A CN 200910239507 A CN200910239507 A CN 200910239507A CN 102117158 B CN102117158 B CN 102117158B
- Authority
- CN
- China
- Prior art keywords
- touch
- screen
- ribbon
- working lining
- resistance line
- 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.)
- Active
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention provides a touch screen, which comprises a working layer, a detection layer, an insulating layer, a substrate and a touch layer. The touch screen is characterized in that: the detection layer is a transparent conductive film; a detection electrode is arranged on the detection layer; and a ribbon resistance wire is arranged on the working layer, extended along one side edge of the working layer, turned back at a certain interval when reaching an edge and repeatedly bent to reach the other side edge of the working layer, and the two endpoints of the ribbon resistance wire form two electrodes. The touch screen is further improved in a way that: the ribbon resistance wire forms a plurality of areas with different touch accuracy values due to interval differences. Compared with the conventional resistive touch screen, the touch screen provided by the invention can meet the requirements of the different touch areas in the touch screen on touch accuracy by regulating the distribution density of the ribbon resistance wire in the touch areas, and reduces the resistance value of the whole ribbon resistance wire and correspondingly reduces the requirements of driving voltages of hand-held consumer terminals because the density of the ribbon resistance wire in a part of the touch areas is relatively lower.
Description
Technical field
The present invention relates to a kind of touch-screen and touching device, relate in particular to a kind of electric resistance touch screen and the touching device that can support single-point or 2 inputs.
Background technology
Existing touch-screen can be divided into according to its principle of work usually: several kinds of resistance-type, condenser type, infrared, surface acoustic wave, electromagnetism and pressure sensings etc.In surface acoustic wave technique, in touch screen surface level and vertical transmission, when panel was touched, the acoustic wave energy at place, contact was absorbed ultrasound wave through transducer, and sensor positions to the variation of sound wave and then to the contact.In infrared technique, light beam is through light emitting diode level and vertical transmission on touch screen surface, and when panel was touched, the light beam at place, contact was blocked, and photodetector detects this variation and then the contact is positioned.
In capacitive technologies, touch-screen has been coated the material that one deck can stored charge, and when panel was touched, little charge attracted to the place, contact, positions through this electric charge of circuit measuring and then to the contact.
In resistive technologies; Electric resistance touch screen is a kind of laminated film of multilayer; One deck glass or organic glass are arranged as basic unit, the surface scribbles one deck ITO (indium oxide) transparency conducting layer, is stamped one deck outside surface cure process, smooth scratch resistant plastics touch layer above again; Its inside surface also scribbles one deck conductive layer (ITO or nickel gold), between the conductive layer of basic unit and touch layer, has many tiny transparent isolating points to separate insulation to them.When the finger touches touch-screen; The two conductive layers of isolating each other at ordinary times is just in the contact of place, contact; Cause is the even voltage field of a conductive layer connection Y direction wherein; Two-layer contact makes the voltage of another side conductive layer (detecting layer) become non-zero by zero, and controller carries out the A/D conversion after detecting voltage, thereby and the magnitude of voltage that obtains compared the Y axial coordinate that obtains the contact with reference voltage value; The even voltage field of in like manner on the another side conductive layer, connecting X-direction can obtain the X coordinate of contact, thereby obtains contact position.
Even it is when on the sensing surface a plurality of target being arranged that there is a problem in above-mentioned resistive touch screen technology, touch-screen also only can be reported a point, promptly lacks the ability of following the trail of a plurality of contacts simultaneously.
One Chinese patent application " 200810067470.4 " discloses a kind of multi-point electric resistance touch screen, and it comprises the transparent medium supporting layer, and upside is provided with the transparent medium touch layer; Be provided with rectangle ITO conducting film in transparent medium supporting layer upper surface; Be provided with isolated area between this rectangle ITO conducting film, the two ends of rectangle ITO conducting film are coated with electrode, are drawn by electrode outlet line; Transparent medium touch layer lower surface is provided with rectangle ITO conducting film perpendicular to supporting layer upper surface rectangle ITO conducting film direction; Be distributed with isolated area between rectangle ITO conducting film, the two ends of rectangle ITO conducting film are coated with electrode, are drawn by electrode outlet line.In this scheme two-layer conducting film all is divided into some rectangular conductive bars; Each bus on every layer of conducting film is parallel to each other and insulate; Be arranged in infall through multirow, multiple row by matrix form and form conduction region; Come corresponding a plurality of tangible positions, but this scheme is thrown away and is had following defective: 1. can only identification in each conduction region a bit, only can recognize a bit in the time of in same conduction region is dropped in a plurality of contacts; 2. each root rectangular conductive bar two ends all need be provided with electrode; Be connected with control circuit through lead-in wire; The increase of bus number can cause the increase of control circuit element, causes the growth of volume increase and manufacturing cost, the very few resolution that can influence touch-screen again of bus number.
In consumer electronics product, in hand-held products such as mobile phone, MID access terminals, the use of touch-screen is mainly imported by the click and the character of focus; The normal conditions focus is in the screen middle part; The pattern of focus all is bigger, and is lower to the position accuracy demand of clicking, and focus is at two ends up and down that screen is admired; Pattern is then less relatively, thereby higher to the click location accuracy requirement; The operation of another aspect focusing has the operational requirements of multiple spot usually, like the amplification of image, rotation, page turning etc.; The character input then need be gathered the movement locus of the stroke of input; Its essence also is the set of numerous single-point operation, as looks into touch-screen and support full frame input, because of user's input characters bigger; Reduced accordingly the click location accuracy requirement; And some consumer electronics product delimited a character input field in the lower end of entire display screen, owing to the scope of input is dwindled, thereby higher to the click location accuracy requirement.
Existing scheme is the difference that input requires according to screen, and screen is divided into two parts, and as shown in Figure 1, A partly is a multiple point touching district, is made up of resistive touch screen; B partly is a single-point touches district, is made up of capacitance plate, and touch-screen is provided with two Petting Areas; Make the user to select to use corresponding Petting Area according to different demands; Realize the mutual supplement with each other's advantages of the touch-screen of two types, both had complete function, also practiced thrift cost simultaneously.
Adopt two types of touch-screens to constitute the scheme of display screen,,, increased the difficulty that generates assembling, in addition, also brought the last complexity of computing because whole touch screen is made up of two parts though certain advantage is arranged.
Therefore, be necessary to provide a kind of novel touch-screen, adopt one type touch-screen, satisfy the requirement that zones of different has the different operating precision.
Summary of the invention
The objective of the invention is to overcome the problem that existing electric resistance touch screen exists, a kind of touch-screen is provided, locate detected resistance value through the contact contact is positioned, and can support 2 touches.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following: a kind of touch-screen comprises a working lining, a detection layers, an insulation course, a basic unit and a touch layer; It is characterized in that: said detection layers is a nesa coating, which is provided with a detecting electrode, and said working lining is provided with the ribbon resistance line; Said ribbon resistance line extends along working lining one side; Turn back with certain interval to the edge, bending arrives another side of working lining repeatedly, and its two-end-point forms two electrodes.
Further improve and be that said ribbon resistance line forms a plurality of different zones that touch precision that have because of the difference at interval.
Another object of the present invention is to provide a kind of touching device; Comprise a touch-screen and a control circuit; Said touch-screen comprises a working lining, a detection layers, an insulation course, a basic unit and a touch layer, and said control circuit comprises one first analog to digital converter and a main control chip:
Said detection layers is a nesa coating, which is provided with a detecting electrode; Said working lining is provided with the ribbon resistance line; The working lining edge is located at said ribbon resistance line two ends, and said ribbon resistance line extends along working lining one side, turns back with certain interval to the edge; Bending arrives another side of working lining repeatedly, and its two-end-point forms two electrodes; Said main control chip selectivity forms the loop with a power turn-on and when touch-screen is touched through said detecting electrode respectively with the two ends of said ribbon resistance line; And said main control chip obtains the resistance value of said touch-screen and confirms contact position according to resistance value through said first analog to digital converter.
Touch-screen provided by the invention and touching device; Through distribution density at Petting Area adjustment ribbon resistance line; Can realize that touch areas different in the touch-screen is to touching the requirement of precision; While is lower because of the density of the ribbon resistance line of subregion, has reduced the resistance value of whole banded resistive conductor, has reduced the requirement of the driving voltage of hand-held consumption terminal accordingly.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of existing subregional touch-screen;
Fig. 2 is the structural representation of resistor-type touching device;
Fig. 3 is the circuit diagram of resistor-type touch screen control circuit;
Fig. 4 is the coordinate synoptic diagram of resistor-type touch-screen;
Fig. 5 a and 5b are the resistor-type touch-screen equivalent circuit diagrams 2 time that is touched;
Fig. 6 is the resistor-type touch-screen equivalent circuit diagram 3 time that is touched;
Fig. 7, the 8th, resistance area ribbon resistance line of the present invention is realized the touch screen structure synoptic diagram that density distributes.
Fig. 9 is the touch-screen contact coordinate calculating chart of Fig. 7,8 ribbon resistance line density distributed architectures of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to figure 2, the resistor-type touching device comprises touch-screen and control circuit, and said touch-screen comprises a working lining 12 and a detection layers 14; Separate (figure does not show) with a transparent insulating layer therebetween, said working lining 12 is the rectangle nesa coating, and etching has the ribbon resistance line 122 of uniform resistivity on it; The electrode data1 of said ribbon resistance line 122 1 ends is located at 12 1 jiaos of working linings, and ribbon resistance line 122 extends along working lining 12 1 sides, turns back to the edge; Form a serpentine configuration; Form the electrode data2 of the other end to the place, diagonal angle of working lining 12, said detection layers 14 is the rectangle nesa coating of uniform resistivity, is provided with a detecting electrode com.
Consult Fig. 3; The detecting electrode com of the two end electrodes data1 of said ribbon resistance line 122 and data2 and working lining all is connected with control circuit; Said control circuit comprises a main control chip 22, a constant current source chip 24, an analog to digital converter AD, a shunt resistance Rt and two K switch 1 and K2; Said constant current source chip 24 is respectively through K switch 1 and two end electrodes data1 with data2 corresponding be connected of K2 with the ribbon resistance line 122 of said touch-screen; Steady current is provided, the detecting electrode com ground connection of said touch-screen, said analog to digital converter AD one end is connected with said main control chip 22; The other end is connected between said constant current source chip 24 and K switch 1 and the K2; To detect to such an extent that voltage signal is passed said main control chip back, said main control chip 22 is connected its closure of control with said K switch 1 respectively with K2, and said shunt resistance Rt is connected between said constant current source chip 24 and the detecting electrode com.
Said main control chip 22 difference folding K switch 1 and K2 are once in a sense cycle; Thereby make said constant current source chip 24 be respectively the ribbon resistance line 122 two end electrodes data1 and the data2 power supply of said touch-screen; The voltage of said analog to digital converter AD senses touch screen is also passed main control chip 22 back; Because the resistance value of shunt resistance Rt and the current value that constant current source chip 24 provides are known, main control chip 22 can calculate the resistance value of touch-screen and then draw contact coordinate according to the detected magnitude of voltage of analog to digital converter AD.The effect of said shunt resistance Rt is the change in voltage scope that reduces touch-screen; For example; The electric current of constant current source chip 24 outputs is 5 milliamperes, and touch screen electrode data1 is 100 ohm to 100 kilo-ohms to the resistance range between the detecting electrode com, and shunt resistance Rt is 1000 ohm; Then the detected voltage of analog to digital converter AD is just between 0.45 volt to 4.95 volts; If remove shunt resistance Rt, the detected voltage of analog to digital converter AD just between 0.5 volt to 500 volts, increases main control chip 22 treatment requirement.
The positioning principle of said touch-screen is following: with reference to figure 4, establishing said ribbon resistance line 122 resistance per unit lengths is M
0(ohm/meter), setting electrode data1 place is the true origin (0,0) of touch-screen, the coordinate position at the residing touch-screen of electrode data2 diagonal angle is (X
0, Y
0), in the heart distance and the distance at ribbon resistance line 122 and working lining 12 edges is T in adjacent two sections of the ribbon resistance line 122 bending back
0, when having 2 A and B to be touched on the touch-screen, when electrode data1 place was measured, K switch 1 was closed in the control circuit at this moment, and K switch 2 is opened, and the equivalent circuit diagram of touch-screen is with reference to figure 5a, and establishing electrode data1 is M to the resistance between the electrode com
1, the length L of ribbon resistance line so from the A point to true origin
1Can be according to formula L
1=M
1/ M
0Obtain, with L
1Divided by (Y
0+ T
0), can obtain integral part is X
K1, fraction part is L
11, with reference to formula L
1=X
K1* (Y
0+ T
0)+L
11, then with L
11Divided by M
0, obtain Y
K1If, X
K1Be even number, the A coordinate of ordering is exactly (X so
K1* T
0, Y
K1); If X
K1Be odd number, the A coordinate of ordering is exactly (X so
K1* T
0, Y
0-Y
K1).
At this resistance M
1The resistance that equals resistance R 1 add resistance R 2, Ra1, Ra2 series connection again with resistance after resistance R b1 and Rb2 are parallelly connected because Ra1+Ra2＜＜R1 and Rb1+Rb2＜＜R1, the resistance after its parallel connection is also much smaller than resistance R 1, so M
1Approximate R1.
When electrode data2 place was measured, K switch 1 was opened in this moment control circuit, K switch 2 closures, and the equivalent electrical circuit of touch-screen is with reference to figure 5b, and establishing the resistance that electrode data2 measures to com is M
2, so from the B point to coordinate (X
0, Y
0) ribbon resistance line length L
2Can be according to formula L
2=M
2/ M
0Obtain, then with L
2Divided by (Y
0+ T
0), can obtain integral part is X
K2, fraction part is L
12, with reference to formula L
2=X
K2* (Y
0+ T
0)+L
12, then with L
12Divided by M
0Obtain Y
K2If X
K2Be even number, the B coordinate of ordering is exactly (X so
0-X
K2* T
0, Y
0-Y
K2), if X
K2Be odd number, the B coordinate of ordering is exactly (X so
0-X
K2* T
0, Y
K2).
At this resistance M
2The resistance that equals resistance R 3 add resistance R 2, Ra1, Ra2 series connection again with resistance after resistance R b1 and Rb2 are parallelly connected because Ra1+Ra2＜＜R3 and Rb1+Rb2＜＜R3, the resistance after its parallel connection is also much smaller than resistance R 3, so M
1Equal R3.Generally the resistance to electrode com can be controlled in below 300 ohm the square resistance of our ribbon resistance line in more than 300 ohm and contact from present practical application; The width of supposing our ribbon resistance line 122 is 0.5 millimeter; Even be that the contact is near ribbon resistance line 122 two ends under limiting case; The conference of contact resistance brings 0.5 millimeter error to us, can ignore.In addition, in order further to reduce the resistance that detection layers 14 inserts in the equivalent electrical circuit, can around detection layers, coat the bus of low resistance, said detecting electrode com is located on the said bus.
If have only a contact, we can come to measure from electrode data1 and data2 respectively equally as the method for front, obtain corresponding coordinate figure then, and the coordinate that obtains for twice is identical.
If there are three points to contact simultaneously, as shown in Figure 6, can not obtain the coordinate that C is ordered though measure all, yet the existence that C is ordered does not influence the correct measurement of other 2 A and B coordinate yet from electrode data1 and data2.Therefore; Even there are more a plurality of points to exist; From the coordinate position of electrode data1 measuring resistance and the contact that calculates be on ribbon resistance line 122 length the coordinate of the nearest contact of ionization electrode data1, from the coordinate position of electrode data2 measuring resistance and the contact that calculates be on ribbon resistance line 122 length the coordinate of the nearest contact of ionization electrode data2.
If when the contact just in time is positioned at the horizontal connecting line of both sides up and down, certain error will occur with top formula, but owing to generally speaking, Y
0＞＞T
0, and the user can not touch the edge of touch-screen basically yet, so therefore this error also can be ignored.
Be appreciated that working lining 12 to be located at the touch layer inside surface of touch-screen and detection layers 14 is located at substrate surface, as other embodiment, said working lining 12 also can be located at substrate surface and detection layers 14 is located at the touch layer inside surface.
In addition, the adjacent two sections Center Gap T in ribbon resistance line 122 bending backs
0Fix, those skilled in the art is also clear, according to technical scheme provided by the invention, bends the adjacent two sections Center Gap in back with T like ribbon resistance line 122
0, 2T
0, T
0, 2T
0Mode alternately, as long as when calculating the position coordinates of contact, consider this factor, all can use method provided by the invention to calculate the position coordinates of contact.
Please refer to the touch screen structure of Fig. 6, this touch-screen is made up of two parts, and one is the closeer zone of ribbon resistance line 40, is suitable for the higher operation of position accuracy demand, like the character input etc.; Another is the zone 20 that the ribbon resistance line distributes and to dredge, and the distribution of such touch-screen ribbon resistance line and aforementioned difference are that adjacent two sections Center Gap is with T
0Change has taken place, as long as when calculating the position coordinates of contact, consider this factor, the method that all can use the front to introduce is calculated the position coordinates of contact.Be appreciated that the interval T that the ribbon resistance line distributes
0Be the key factor that touches precision, interval T
0More little, it is high more to touch precision.
Please refer to touch screen structure shown in Figure 7, compare this touch-screen of Fig. 6 and form, comprise two high precision manipulation districts 30,40 by three parts, and a low precision operational zone 20.The calculating of its position coordinates also only need be examined the adjacent two ribbon resistance line Center Gap T of filter
0Variation get final product.
For Fig. 7, touch screen structure shown in Figure 8, as long as arranging of the resistive conductor of each subregion 20,30,40 is uniformly at interval, the resistance of the unit length of each subregion resistive conductor also is identical simultaneously.The calculating of touch point coordinate position also can be adopted following method except that said method.
See also shown in Figure 9ly, under this mode, handle the relatively simple volume production that also helps simultaneously.We can measure the resistance value that a bit arrives origin position on this screen arbitrarily, and in order to obtain its locus, we need be converted into coordinate figure with resistance value.
We define following space coordinates; Its vertical maximum coordinates is Yt; Horizontal maximum coordinates is Xt, and we can simply obtain the ordinate Y of the horizontal resistive conductor of each root from the relation of physical arrangement, but we need know the resistance value of the end positions of each root lateral resistance line to initial point; In the processing procedure of reality, we can measure the resistance value of every lateral resistance line end positions to initial point one by one.
When calculating the Y coordinate of any contact point, we only need read the resistance value of this contact point to initial point, such as this resistance value just between a0 and two end points of a1 between the resistance value of initial point, we just can obtain the ordinate of this point so.
The computing method of horizontal ordinate are also fairly simple, for example our contact point T still be in (a0, on line segment a1), its resistance value to initial point is Rt, simultaneously we have known that the resistance value at two ends is Ra0 and Ra1, and horizontal ordinate separately 0 and Xt.So just have following equality to set up:
The horizontal ordinate of contact point T is exactly so:
In this example, from distributed architecture: Ra0 is greater than Ra1.But at two resistive conductors of next-door neighbour up and down of this line, the resistance value of left side end points is less than the resistance value of the right end points, the coordinates computed value time, just need do corresponding adjustment so, supposes that Ra0 is less than Ra1.
Then horizontal ordinate x is exactly:
But from the result of formula 3 and formula 2, horizontal ordinate x can represent with formula 2 in fact:
Those skilled in the art are also clear; In resistive touch screen structure provided by the invention; As long as store the form of ribbon resistance wire shaped, resistance and coordinate corresponding relation in the main control chip of system; The ribbon resistance line of arbitrary shape distributes and all can confirm the coordinate position of contact through tabling look-up, and obtains contact coordinate through tabling look-up.
In the process of calculating touch-screen; The resistance that control circuit records from first end; Main control chip can one obtain corresponding contact coordinate through tabling look-up; From the resistance that second end records, main control chip can two obtain corresponding contact coordinate through tabling look-up, and can accomplish the location of single-point or 2 touches by this.
Be appreciated that electrode data1 and data2 also can be located at the same side of working lining 12, ribbon resistance line 122 arrives the electrode data2 that turns back along the edge again behind working lining 12 opposite sides by the electrode data1 bending of setting out repeatedly.
The present invention is through the distribution density at Petting Area adjustment ribbon resistance line; Can realize that touch areas different in the touch-screen is to touching the requirement of precision; While is lower because of the density of the ribbon resistance line of subregion; Reduce the resistance value of whole banded resistive conductor, reduced the requirement of the driving voltage of hand-held consumption terminal accordingly.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a touch-screen comprises a working lining, a detection layers, an insulation course, a basic unit and a touch layer, it is characterized in that: said detection layers is a nesa coating; Which is provided with a detecting electrode; Said working lining is provided with the ribbon resistance line, and said ribbon resistance line extends along working lining one side, turns back with certain interval to the edge; Bending arrives another side of working lining repeatedly, and its two-end-point forms two electrodes.
2. a kind of touch-screen according to claim 1 is characterized in that: said ribbon resistance line is a plurality of zones with different touch precision because of difference at interval forms.
3. touch-screen according to claim 2 is characterized in that: said touch-screen comprises the Petting Area of two high precision Petting Areas and intermediate distribution one low precision thereof.
4. touch-screen according to claim 1 is characterized in that: said working lining is located at the touch layer inside surface, and said detection layers is located at substrate surface.
5. touch-screen according to claim 1 is characterized in that: said working lining is located at substrate surface, and said detection layers is located at the touch layer inside surface.
6. a touching device comprises a touch-screen and a control circuit, and said touch-screen comprises a working lining, a detection layers, an insulation course, a basic unit and a touch layer, and said control circuit comprises one first analog to digital converter and a main control chip, it is characterized in that:
Said detection layers is a nesa coating, which is provided with a detecting electrode;
Said working lining is provided with the ribbon resistance line; The working lining edge is located at said ribbon resistance line two ends, and said ribbon resistance line extends along working lining one side, turns back with certain interval to the edge; Bending arrives another side of working lining repeatedly, and its two-end-point forms two electrodes;
Said main control chip selectivity forms the loop with a power turn-on and when touching different being touched through said detecting electrode respectively with the two ends of said ribbon resistance line; And
Said main control chip obtains the resistance value of said touch-screen and confirms contact position according to resistance value through said first analog to digital converter.
7. touching device according to claim 6 is characterized in that: said ribbon resistance line is a plurality of zones with different touch precision because of difference at interval forms.
8. touching device according to claim 6 is characterized in that: the position of the contact ordinate vertical with the ribbon resistance line can be confirmed according to the interval at the place of the resistance value that records.
9. according to claim 6 or 8 described touching devices, it is characterized in that: try to achieve with the geometric ratio formula with the resistance of ribbon resistance line two-end-point that the position of the contact abscissa of ribbon resistance line parallel can be through place, contact section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910239507A CN102117158B (en) | 2009-12-31 | 2009-12-31 | Touch screen and touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910239507A CN102117158B (en) | 2009-12-31 | 2009-12-31 | Touch screen and touch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102117158A CN102117158A (en) | 2011-07-06 |
| CN102117158B true CN102117158B (en) | 2012-09-05 |
Family
ID=44215949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910239507A Active CN102117158B (en) | 2009-12-31 | 2009-12-31 | Touch screen and touch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102117158B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014149023A1 (en) | 2013-03-15 | 2014-09-25 | Rinand Solutions Llc | Force sensing of inputs through strain analysis |
| AU2015100011B4 (en) | 2014-01-13 | 2015-07-16 | Apple Inc. | Temperature compensating transparent force sensor |
| CN105320327A (en) * | 2014-07-25 | 2016-02-10 | 南京瀚宇彩欣科技有限责任公司 | Handheld electronic device and outer touch cover thereof |
| US10209830B2 (en) | 2016-03-31 | 2019-02-19 | Apple Inc. | Electronic device having direction-dependent strain elements |
| US10444091B2 (en) | 2017-04-11 | 2019-10-15 | Apple Inc. | Row column architecture for strain sensing |
| US10782818B2 (en) | 2018-08-29 | 2020-09-22 | Apple Inc. | Load cell array for detection of force input to an electronic device enclosure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149659A (en) * | 2006-09-20 | 2008-03-26 | 凌阳科技股份有限公司 | Touch control input device, touch positioning device and its method |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
-
2009
- 2009-12-31 CN CN200910239507A patent/CN102117158B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149659A (en) * | 2006-09-20 | 2008-03-26 | 凌阳科技股份有限公司 | Touch control input device, touch positioning device and its method |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102117158A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100573432C (en) | Multi-point electric resistance touch screen | |
| TWI424337B (en) | Two-dimensional position sensor | |
| CN101833387B (en) | Pressure sensing type touch device | |
| CN102117158B (en) | Touch screen and touch device | |
| US10067611B2 (en) | Apparatus and method for detecting a touch | |
| CN102109940B (en) | Capacitive sensing device and method for manufacturing same and capacitive sensing system | |
| CN101825961B (en) | Integrated-type touch-control device | |
| US20110210934A1 (en) | Touch panel, and input device including the same | |
| CN102135829B (en) | Method of driving a touch screen system | |
| CN100517001C (en) | Optical organic membrane structure of display apparatus and display apparatus | |
| CN101339481A (en) | Electric resistance array touch screen | |
| CN102033668A (en) | Capacitive touch screen | |
| CN104020899A (en) | Single-layer capacitive touch device and panel module thereof | |
| US9612692B2 (en) | Position measuring apparatus and driving method thereof | |
| CN101452360A (en) | Sensing device for capacitance touch control screen | |
| WO2013179042A2 (en) | Multi-touch sensing panel | |
| CN108874218A (en) | A kind of touch base plate, its touch-control localization method and capacitive touch screen | |
| KR20100050624A (en) | One-layer touch panel sensor | |
| CN102645997B (en) | Touch control panel and touch point distinguishing method of touch control panel | |
| CN101853116B (en) | Touch screen and contact positioning method thereof | |
| CN102855041B (en) | A kind of monolayer multipoint capacitive touch screen | |
| CN201438300U (en) | Touch screen | |
| CN201436625U (en) | Pressure sensitive touch control structure | |
| CN201207180Y (en) | Multi-point resistor touch control screen | |
| CN201440250U (en) | Touch screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110706 Assignee: Shenzhen ZhengXing Optoelectronics Technology Co., Ltd. Assignor: TCL Group Co., Ltd. Contract record no.: 2012440020328 Denomination of invention: Touch screen and touch device Granted publication date: 20120905 License type: Exclusive License Record date: 20121203 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |