(12) Patent Application Publication (10) Pub. No.: US 2017/ A1

Transcription

1 (19) Unite State US O2A1 (12) Patent Application Publication (10) Pub. No.: US 2017/ A1 YE et al. (43) Pub. Date: Jun. 15, 2017 (54) MONOLAYER MUTUAL-CAPACITIVE (30) Foreign Application Priority Data TOUCH PANEL AND CAPACTIVE TOUCHSCREEN Sep. 1, 2014 (CN) O6495 Publication Claification (71) Applicant: SHENZHEN CHINA STAR (51) Int. Cl. OPTOELECTRONICS G06F 3/044 ( ) TECHNOLOGY CO., LTD., G06F 3/04 ( ) Shenzhen, Guangong (CN) (52) U.S. Cl. CPC... G06F 3/044 ( ); G06F 3/04 16 (72) Inventor: Chengliang YE, Shenzhen, Guangong ( ); G06F 2203/ ( ) (CN); Chun Kai CHANG, Shenzhen, 57 ABSTRACT Guangong (CN); Ruhai FU, Shenzhen, ( Guangong (CN); Jie QIU, Shenzhen, A ingle layer mutual-capacitive touch panel an a capaci Guangong (CN); Yung Lun LIN tive touchcreen are icloe, which belong to the fiel of Shenzhen Guangong (CN) iplay technologie. The canning frequency of a SITO an the accuracy in canning a touch ignal can therefore be improve. The ingle layer mutual-capacitive touch panel (21) Appl. No.: 14/417,368 comprie a Subtrate an a plurality of touch unit arrange in an array on the Subtrate, wherein each of the touch unit (22) PCT File: Oct. 13, 2014 inclue a firt ening electroe for ening a vertical coorinate of a touch ignal, a econ ening electroe for (86). PCT No.: PCT/CN2O14/O88472 ening a horizontal coorinate of the touch ignal, an a canning electroe arrange cloe to the firt ening elec S 371 (c)(1), troe an the econ ening 9. electroe to form mutual (2) Date: May 20, 2016 capacitor therewith repectively TT 4 1 : k 1. 3(31) O 9 S. Arx & e Pro & x S. S Q & S. SQ K S. Yg 5 S. S - C { C & 2 1x 3. T i S. 8 al ( Yx & b O 8.

2 Patent Application Publication \<<<<< R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-R-RE: Fig. 1

3 Patent Application Publication Jun. 15, 2017 Sheet 2 of 4 US 2017/O A1 Scanning Signal T Fig. 2

4 Patent Application Publication Jun. 15, Sheet 3 of 4 US 2017/O A1 A Fig. 3

5 Patent Application Publication Jun. 15, Sheet 4 of 4 US 2017/O A1 Z M; Y C Af, C, L 2 C C Y D or / 8 4. L L Y C E C g Y L [] ---- SOEN?NISOESOES??N)'N?No.SNOE Fig. 4

6 US 2017/O A1 Jun. 15, 2017 MONOLAYER MUTUAL-CAPACTIVE TOUCH PANEL AND CAPACTIVE TOUCHSCREEN The preent application claim benefit of Chinee patent application CN , entitle Mono layer mutual-capacitive touch panel an capacitive touch creen an file on Sep. 1, 2014, the entirety of which i incorporate herein by reference. FIELD OF THE INVENTION 0002 The preent icloure relate to the fiel of iplay technologie, an in particular, to a ingle layer mutual capacitive touch panel an a capacitive touchcreen. BACKGROUND OF THE INVENTION 0003 Touch control one of the implet an mot con venient man-machine interaction moe available at preent. Therefore, touchcreen are increaingly ue in a variety of electronic prouct. Bae on ifferent working principle an information tranmiion meium, touchcreen prouct can be ivie into four type: infrare touchcreen, capaci tive touchcreen, reitance touchcreen, an Surface acoutic wave touchcreen, among which, capacitive touchcreen have become the maintream touchcreen currently ue to variou avantage thereof. Such a long ervice live, high tranmittance, capability in Supporting multi-touch control, etc Capacitive touchcreen can be urface capacitive or projecte capacitive, wherein projecte capacitive touch creen can further be elf-capacitive or mutual-capacitive. In a mutual-capacitive touchcreen, a ening electroe R an a canning electroe T are mae on a Surface of a Subtrate (uually a gla Subtrate) with inium tin oxie (ITO for hort), wherein a coupling capacitor woul be forme where two group of electroe cro each other. That i, the two group of electroe contitute two pole of the coupling capacitor, repectively. When a capacitive creen i touche with a finger, the coupling between two electroe in the vicinity of a touch point woul be affecte, thereby altering the value of a coupling capacitance ther ebetween. The coorinate of each touch point can be cal culate bae on two-imenional capacitive variation ata of a mutual-capacitive touchcreen. Therefore, even if there i a plurality of touch point on the creen, the real coori nate of each of the touch point can be calculate Currently, there ubtantially exit two varietie of mutual-capacitive touchcreen. One i terme a ouble layer ITO (DITO for hort) mutual-capacitive touchcreen, in which the ening electroe R an the canning electroe Tx are manufacture with two layer of ITO conuctive material an arrange on two parallel but non-coplanar plane, repectively. Thi type of touchcreen ha to be manufacture through a complex manufacturing proceure an yiel rate thereof are retricte thereby. The other i terme a ingle layer ITO (SITO for hort) mutual-capaci tive touchcreen, in which the ening electroe Rx an the canning electroe T are arrange on one an the ame plane. The manufacturing proceure of a SITO mutual capacitive touchcreen i impler than that of a DITO mutual-capacitive touchcreen, an therefore SITO mutual capacitive touchcreen have become the maintream pro uct currently It ha been foun that accoring to an exiting rive moe, Scanning electroe T are canne equentially by line at a relatively low canning frequency, thereby preventing the SITO mutual-capacitive touchcreen from being canne at a high frequency. A a reult, touch ignal are canne with low accuracy. SUMMARY OF THE INVENTION The preent icloure aim to provie a ingle layer mutual-capacitive touch panel an a capacitive touch creen, which can improve the Scanning frequency of a SITO mutual-capacitive touchcreen an the accuracy in Scanning a touch ignal Accoring to a firt apect of the preent iclo Sure, a ingle layer mutual-capacitive touch panel i pro vie, compriing a Subtrate an a plurality of touch unit arrange in an array on the Subtrate, wherein each of the touch unit inclue a firt ening electroe for ening a vertical coorinate of a touch ignal, a econ ening electroe for ening a horizontal coorinate of the touch ignal, an a canning electroe arrange cloe to the firt ening electroe an the econ ening electroe to form mutual capacitor therewith repectively. The canning elec troe of all the plurality of touch unit are connecte to one another. The firt ening electroe of the touch unit that are locate in one an the ame line are connecte to one another, an the econ ening electroe of the touch unit that are locate at one an the ame column are connecte to one another The firt ening electroe an the econ ening electroe are both in the form of trip, an are parallel with each other The canning electroe of a touch unit comprie a firt Sub-Scanning electroe, which i in the form of a trip, an arrange between the firt ening electroe an the econ ening electroe of ai touch unit, in parallel with ai firt ening electroe an ai econ ening elec troe The firt ub-canning electroe of the touch unit locate at one an the ame column are forme into one piece, an the firt Sub-Scanning electroe of the touch unit locate at all column are connecte to one another The canning electroe of a touch unit further comprie a econ Sub-Scanning electroe, which i con necte to the firt Sub-Scanning electroe of ai touch unit, an i in the form of a frame having an opening. The firt ening electroe of a touch unit i locate inie the frame of the econ Sub-Scanning electroe of ai touch unit The firt ub-canning electroe of a touch unit hare a ie with the econ Sub-Scanning electroe of ai touch unit The itance from the firt ub-canning electroe of a touch unit to the firt ening electroe of ai touch unit i in the range from 10 to 20 um, an the itance from the firt Sub-Scanning electroe of a touch unit to the econ ening electroe of ai touch unit i in the range from 10 to 20 um alo The itance from the firt ub-canning electroe of a touch unit to the econ ening electroe of ai touch unit i in the range from 10 to 20 Jum, an the itance from the econ Sub-Scanning electroe of a touch unit to the firt ening electroe of ai touch unit i in the range from 10 to 20 um alo.

7 US 2017/O A1 Jun. 15, A Scanning frequency of the ingle layer mutual capacitive touch panel i in the range from 200 to 300 MHz In the technical olution accoring to the emboi ment of the preent icloure, the ingle layer mutual capacitive touch panel i provie, compriing a plurality of touch unit. Each of the touch unit inclue a canning electroe, a firt ening electroe, an a econ ening electroe. Accoring to the preent icloure, the firt ening electroe of the touch unit locate in one an the ame line are connecte to one another, an the econ ening electroe of the touch unit locate at one an the ame column are connecte to one another. The firt ening electroe can be ue for ening a vertical coorinate of a touch ignal, an the econ ening electroe can be ue for ening a horizontal coorinate of a touch ignal. More over, the canning electroe of all the touch unit locate on the ingle layer mutual-capacitive touch panel are connecte to one another, Such that the canning electroe on the whole ingle layer mutual-capacitive touch panel can per form Scanning imultaneouly. A a reult, a high canning frequency can be achieve for the ingle layer mutual capacitive touch panel of the preent icloure, an the accuracy in Scanning a touch ignal can be improve Accoring to a econ apect of the preent i cloure, a capacitive touchcreen i provie, compriing the ingle layer mutual-capacitive touch panel a ecribe above accoring to the firt apect of the preent icloure Other feature an avantage of the preent i cloure will be further explaine in the following ecrip tion, an partly become elf-evient therefrom, or be uner too through implementing the preent icloure. The objective an avantage of the preent icloure will be achieve through the tructure pecifically pointe out in the ecription, claim, an the accompanying rawing. BRIEF DESCRIPTION OF THE DRAWINGS In orer to explicitly illutrate the technical olu tion in the emboiment of the preent icloure, accom panying rawing that will be referre to in illutrating the emboiment will be imply explaine, in which: 0021 FIG. 1 how a tructural iagram of a ingle layer mutual-capacitive touch panel accoring to the emboi ment of the preent icloure; 0022 FIG. 2 how a rive timing iagram of the ingle layer mutual-capacitive touch panel accoring to the emboiment of the preent icloure; 0023 FIG. 3 how a further tructural iagram of the ingle layer mutual-capacitive touch panel accoring to the emboiment of the preent icloure; an 0024 FIG. 4 how a till further tructural iagram of the ingle layer mutual-capacitive touch panel accoring to the emboiment of the preent icloure. DETAILED DESCRIPTION OF THE EMBODIMENTS The preent icloure will be explaine in etail with reference to the emboiment an the accompanying rawing, whereby it can be fully unertoo how to olve the technical problem by the technical mean accoring to the preent icloure an achieve the technical effect thereof, an thu the technical Solution accoring to the preent icloure can be implemente. It i important to note that a long a there i no tructural conflict, all the technical feature mentione in all the emboiment may be combine together in any manner, an the technical olu tion obtaine in thi manner all fall within the cope of the preent icloure In the emboiment of the preent icloure, a ingle layer mutual-capacitive touch panel i provie. A hown in FIG. 1, the ingle layer mutual-capacitive touch panel comprie a Subtrate 1 an a plurality of touch unit 2 arrange in an array on the Subtrate 1. Specifically, each of the touch unit 2 inclue a canning electroe 3, a firt ening electroe 4, an a econ ening electroe 5. The canning electroe 3 i arrange cloe to the firt ening electroe 4 an the econ ening electroe 5 to form mutual capacitor therewith repectively. The firt ening electroe 4 ene a vertical coorinate of a touch ignal, an the econ ening electroe 5 ene a horizontal coori nate of a touch ignal. That i, the firt ening electroe 4 an the econ ening electroe 5 can cooperate to ene a pecific coorinate of a control ignal, o that the ingle layer mutual-capacitive touch panel can provie pecific feeback in a convenient manner In the emboiment a hown in FIG. 1, the can ning electroe 3 of all the touch unit 2 are connecte to one another; the firt ening electroe 4 of the touch unit 2 that are locate in one an the ame line are connecte to one another; an the econ ening electroe 5 of the touch unit 2 that are locate at one an the ame column are connecte to one another Accoring to the technical olution provie in the emboiment of the preent icloure, a ingle layer mutual-capacitive touch panel i provie, incluing a plu rality of touch unit. Each of the touch unit ha a canning electroe, a firt ening electroe, an a econ ening electroe. In the preent icloure, the firt ening elec troe locate at one an the ame line are connecte to one another, an the econ ening electroe of the touch unit that are locate at one an the ame column are connecte to one another. The firt ening electroe an the econ ening electroe are repectively ue for ening a vertical coorinate an a horizontal coorinate of a touch ignal. Moreover, the canning electroe of all the touch unit locate on the ingle layer mutual-capacitive touch panel are connecte to one another. A a reult, all the canning electroe on the whole ingle layer mutual-capacitive touch panel can perform Scanning imultaneouly, thu enabling high-frequency canning of the ingle layer mutual-capaci tive touch panel of the preent icloure, an improving accuracy in Scanning the touch ignal In the emboiment of the preent icloure, with the canning electroe 3 of all the touch unit 2 being connecte to one another, the Scanning electroe 3 of all the touch unit 2 can perform Scanning imultaneouly when the ingle layer mutual-capacitive touch panel en a canning ignal. That i, all canning electroe 3 a inicate in FIG. 2 (i.e., T, T,..., T, in FIG. 2) receive a canning ignal of a high-level Voltage ent from the ingle layer mutual capacitive touch panel at the ame time, an then perform canning. Therefore, the Scanning frequency of the canning electroe can be raie to a level in the range from 200 to 300 MHz, or even higher, uch a 500 MHz Preferably, in orer to enure a compact tructure of the touch unit 2, a epicte in FIG. 1, the firt ening

8 US 2017/O A1 Jun. 15, 2017 electroe 4 an the econ ening electroe 5 can be arrange both in the form of trip, an in parallel with each other Specifically, a FIG. 1 how, the canning elec troe 3 can comprie a firt Sub-Scanning electroe 31, which can alo be in the form of a trip an locate between the firt ening electroe 4 an the econ ening electroe 5 in parallel therewith In thi cae, a hown in FIG. 1, the firt ub canning electroe 31 of a touch unit i locate between the firt ening electroe 4 an the econ ening electroe 5 of ai touch unit, an i arrange cloe to the firt ening electroe 4 an the econ ening electroe 5 of ai touch unit, to form mutual capacitor therewith repectively. In orer to enure formation of mutual capacitor between the firt Sub-Scanning electroe 31 an the firt ening electroe 4, an between the firt ub-canning electroe 31 an the econ ening electroe 5, it i preferre that, the itance from the firt ub-canning electroe 31 of a touch unit to the firt ening electroe 4 of ai touch unit, an the itance from the firt ub-canning electroe 31 of a touch unit to the econ ening electroe 5 of ai touch unit are both in the range from 10 to 20 um A previouly mentione in thi ecription, accoring to the emboiment of the preent icloure, the canning electroe 3 of all the touch unit 2 are connecte to one another. Therefore, in orer to implify the wire on the ubtrate an reuce ifficultie in the manufacturing proceure, a FIG. 1 how, the firt ub-canning electroe 31 of the touch unit 2 locate at one an the ame column can be forme into one piece. Moreover, the firt ub canning electroe 31 of the touch unit locate at all column are connecte to one another. That i, the firt ub-canning electroe 31 of the touch unit locate at all column are connecte to one another at an ege of the ubtrate In the emboiment a hown in FIG. 1, a relatively mall area of the firt ub-canning electroe 31 of a touch unit relative to the firt ening electroe 4 of ai touch unit rener the capacitance value of a mutual capacitor forme therebetween relatively mall. In orer to increae the capacitance value of the mutual capacitor forme between the canning electroe 3 of a touch unit an the firt ening electroe 4 of ai touch unit, enable better ening effect therebetween, an therefore inirectly increae the accuracy in ening a touch ignal by the ingle layer mutual-capaci tive touch panel, a inicate in FIG. 3, the canning electroe 3 of a touch unit further comprie a econ ub-canning electroe 32, which i connecte to the firt ub-canning electroe 31 of ai touch unit. The econ Sub-Scanning electroe 32 i in the form of a frame having an opening. An the firt ening electroe 4 of a touch unit i locate inie the frame of the econ Sub-Scanning electroe 32 of ai touch unit. 0035) Specifically, in the emboiment a hown in FIG. 3, both long ie of the frame-hape econ Sub-Scanning electroe 32 of a touch unit are in parallel with the firt ening electroe 4 of ai touch unit. The opening i arrange at a mile portion of either of the long ie of the frame, while the other long ie thereof i locate between the firt ening electroe 4 an the firt Sub-Scanning electroe 31 of ai touch unit. The wire of the firt ening electroe 4 of the touch unit 2 locate in one an the ame line can exten from the opening of correponing econ ub-canning electroe 32. The wire of the econ ub canning electroe 32 of the touch unit locate in one an the ame line are connecte to one another at an ege of the ubtrate 1 where no touch unit 2 i provie, an feeback potential variation of the econ Sub-Scanning electroe 32 to an analyi an proceing unit of the ingle layer mutual-capacitive touch panel, which can therefore juge availability of a touch ignal in a convenient manner It houl be note that, in the emboiment a inicate in FIG. 1 or FIG. 3, the wire of each firt ening electroe 4 can be properly increae in with at parely wire poition on the Subtrate. Thi can reuce reitance of the wire, an thereby guarantee the working effect of each firt ening electroe 4. A a reult, the accuracy in ening a touch ignal by the ingle layer mutual-capacitive touch panel can be ecure. In aition, the wiring enity on the Subtrate 1 can be increae, which can aure a uer' viewing effect In aition, accoring to the emboiment of the preent icloure, a inicate in FIG. 3, a long ie of the econ Sub-Scanning electroe 32 of a touch unit can be connecte to the firt ub-canning electroe 31 of ai touch unit, o that the firt ub-canning electroe 31 an the econ Sub-Scanning electroe 32 can be forme into one piece In orer to enure a ufficient area of the econ ub-canning electroe 32 of a touch unit relative to the firt ening electroe 4 of ai touch unit, an implify the wire of the touch unit a hown in FIG. 2, the firt ub-canning electroe 31 of a touch unit 2 can preferably hare a ie with the econ ub-canning electroe 32 of ai touch unit 2. For example, a hown in FIG. 4, the long ie of the econ ub-canning electroe 32 of FIG. 3 cloe to the firt ub-canning electroe 31 can form a ie of the firt Sub-Scanning electroe Similarly, in orer to enure formation of a mutual capacitor between the firt ub-canning electroe 31 of a touch unit an the econ ening electroe 5 of ai touch unit, a hown in FIG.3 or FIG. 4, the itance from the firt ub-canning electroe 31 of a touch unit 2 to the econ ening electroe 5 of ai touch unit 2 i in the range from 10 to 20 Lum. Correponingly, the itance from the econ ub-canning electroe 32 of a touch unit 2 to the firt ening electroe 4 of ai touch unit 2 houl alo be in the range from 10 to 20 um Furthermore, in the emboiment of the preent icloure, a capacitive touchcreen i provie. The capaci tive touchcreen comprie the ingle layer mutual-capaci tive touch panel a ecribe above, an can be ue in iplay evice Such a liqui crytal televiion, liqui crytal iplay, mobile phone, tablet peronal computer, etc The above emboiment are ecribe only for better unertaning, rather than retricting, the preent icloure. Any peron kille in the art can make amen ment to the implementing form or etail without epart ing from the pirit an cope of the preent icloure. The cope of the preent icloure houl till be ubject to the Scope efine in the claim. LIST OF REFERENCE NUMBERS ubtrate: touch unit: 0044) 3. canning electroe:

9 US 2017/O A1 Jun. 15, firt ub-canning electroe: econ ub-canning electroe: firt ening electroe; an econ ening electroe. 1. A ingle layer mutual-capacitive touch panel, compri ing a Subtrate an a plurality of touch unit arrange in an array on the ubtrate, wherein each of the touch unit inclue a firt ening electroe for ening a vertical coorinate of a touch ignal, a econ ening electroe for ening a horizontal coorinate of the touch ignal, an a canning electroe arrange cloe to the firt ening elec troe an the econ ening electroe to form mutual capacitor therewith repectively, wherein the canning electroe of all the plurality of touch unit are connecte to one another, an the firt ening electroe of the touch unit that are locate in one an the ame line are connecte to one another, an the econ ening electroe of the touch unit that are locate at one an the ame column are connecte to one another. 2. The ingle layer mutual-capacitive touch panel accor ing to claim 1, wherein the firt ening electroe an the econ ening electroe are both in the form of trip, an are parallel with each other. 3. The ingle layer mutual-capacitive touch panel accor ing to claim 2, wherein the Scanning electroe of a touch unit comprie a firt Sub-Scanning electroe, which i in the form of a trip, an arrange between the firt ening electroe an the econ ening electroe of ai touch unit, in parallel with ai firt ening electroe an ai econ ening electroe. 4. The ingle layer mutual-capacitive touch panel accor ing to claim 3, wherein the firt Sub-Scanning electroe of the touch unit locate at one an the ame column are forme into one piece, an the firt Sub-Scanning electroe of the touch unit locate at all column are connecte to one another. 5. The ingle layer mutual-capacitive touch panel accor ing to claim3, wherein the Scanning electroe of a touch unit further comprie a econ Sub-Scanning electroe, which i connecte to the firt Sub-Scanning electroe of ai touch unit, an i in the form of a frame having an opening, an wherein the firt ening electroe of a touch unit i locate inie the frame of the econ Sub-Scanning electroe of ai touch unit. 6. The ingle layer mutual-capacitive touch panel accor ing to claim 5, wherein the firt Sub-Scanning electroe of a touch unit hare a ie with the econ Sub-Scanning electroe of ai touch unit. 7. The ingle layer mutual-capacitive touch panel accor ing to claim 3, wherein the itance from the firt ub canning electroe of a touch unit to the firt ening electroe of ai touch unit i in the range from 10 to 20 um, an the itance from the firt Sub-Scanning electroe of a touch unit to the econ ening electroe of ai touch unit i in the range from 10 to 20 um alo. 8. The ingle layer mutual-capacitive touch panel accor ing to claim 5, wherein the itance from the firt ub canning electroe of a touch unit to the econ ening electroe of ai touch unit i in the range from 10 to 20 um, an the itance from the econ Sub-Scanning electroe of a touch unit to the firt ening electroe of ai touch unit i in the range from 10 to 20 um alo. 9. The ingle layer mutual-capacitive touch panel accor ing to claim 1, wherein a canning frequency of the ingle layer mutual-capacitive touch panel i in the range from 200 to 300 MHZ. 10. A capacitive touchcreen, compriing a ingle layer mutual-capacitive touch panel, which inclue a Subtrate an a plurality of touch unit arrange in an array on the Subtrate, wherein each of the touch unit ha a firt ening electroe for ening a vertical coorinate of a touch ignal, a econ ening electroe for ening a horizontal coori nate of the touch ignal, an a canning electroe arrange cloe to the firt ening electroe an the econ ening electroe to faun mutual capacitor therewith repectively, wherein the canning electroe of all the plurality of touch unit are connecte to one another, an the firt ening electroe of the touch unit that are locate in one an the ame line are connecte to one another, an the econ ening electroe of the touch unit that are locate at one an the ame column are connecte to one another. k k k k k