`
`US009823784B2
`
`( 12 ) United States Patent
`Sleeman et al .
`
`( 10 ) Patent No . :
`( 45 ) Date of Patent :
`
`US 9 , 823 , 784 B2
`Nov . 21 , 2017
`
`( 54 ) CAPACITIVE TOUCH SCREEN WITH NOISE
`SUPPRESSION
`( 75 ) Inventors : Peter Sleeman , Hants ( GB ) ; Samuel
`Brunet , Hamble ( GB ) ; Matthew
`Trend , Hants ( GB ) ; Harald Philipp ,
`Hamble ( GB )
`( 73 ) Assignee : Atmel Corporation , San Jose , CA ( US )
`Subject to any disclaimer , the term of this
`( * ) Notice :
`patent is extended or adjusted under 35
`U . S . C . 154 ( b ) by 1196 days .
`( 21 ) Appl . No . : 12 / 421 , 705
`Apr . 10 , 2009
`( 22 )
`Filed :
`Prior Publication Data
`( 65 )
`US 2010 / 0044122 A1 Feb . 25 , 2010
`Related U . S . Application Data
`( 60 ) Provisional application No . 61 / 044 , 038 , filed on Apr .
`10 , 2008 .
`( 51 ) Int . Ci .
`G06F 3 / 044
`GOLD 5 / 24
`( 52 ) U . S . CI .
`CPC . . . . . . . . . . . . . G06F 3 / 044 ( 2013 . 01 ) ; GOIB 7 / 003
`( 2013 . 01 ) ; GOLD 5 / 2405 ( 2013 . 01 ) ; G06F
`1 / 16 ( 2013 . 01 ) ;
`
`( 2006 . 01 )
`( 2006 . 01 )
`( Continued )
`
`CN
`EP
`
`( 56 )
`
`References Cited
`U . S . PATENT DOCUMENTS
`3 / 1998 Philipp
`5 , 730 , 165 A
`9 / 2002 Philipp
`6 , 452 , 514 B1
`( Continued )
`FOREIGN PATENT DOCUMENTS
`. . . . . . . . . . . . . GO6F 3 / 042
`101101525
`1 / 2008
`1821175 A1
`8 / 2007
`( Continued )
`OTHER PUBLICATIONS
`“ 2009 _ Conductive Inkjet Technology " , [ online ] . [ retrieved Apr .
`20 , 2010 ] . Retrieved from the Internet : < URL : http : / / www .
`conductiveinkjet . com / about - us / latest - news / 2009 . aspx > , 1 pg .
`( Continued )
`Primary Examiner — Amare Mengistu
`Assistant Examiner — Shawna Stepp Jones
`( 74 ) Attorney , Agent , or Firm — Baker Botts L . L . P .
`ABSTRACT
`( 57 )
`A capacitive touch sensor wherein the touch sensitive panel
`has drive electrodes arranged on the lower side of a substrate
`and sense electrodes arranged on the upper side . The drive
`electrodes are shaped and dimensioned to substantially
`entirely cover the touch sensitive area with individual drive
`electrodes being separated from each other by small gaps ,
`the gaps being so small as to be practically invisible . The
`near blanket coverage by the drive electrodes also serves to
`screen out interference from noise sources below the drive
`electrode layer , such as drive signals for an underlying
`display , thereby suppressing noise pick - up by the sense
`electrodes that are positioned above the drive electrodes .
`3 Claims , 10 Drawing Sheets
`
`G06F 3 / 044
`
`( 58 )
`
`( Continued )
`Field of Classification Search
`CPC .
`
`( Continued )
`
`103
`
`Z
`
`102
`
`101
`arzana 777777777 ZZZZZ
`
`www
`
`ZZZ
`101
`
`ZA
`
`102
`
`IPR2020-00998
`Apple EX1010 Page 1
`
`
`
`( 51 ) Int . Cl .
`HO3K 17796
`GOIB 7700
`GO6F 3 / 041
`G06F 1 / 16
`H05K 1 / 02
`U . S . CI .
`???
`G06F 3 / 0412 ( 2013 . 01 ) ; G06F 3 / 0416
`( 2013 . 01 ) ; HO3K 17 / 9622 ( 2013 . 01 ) ; H05K
`1 / 0296 ( 2013 . 01 ) ; GOIB 2210 / 58 ( 2013 . 01 ) ;
`G06F 2203 / 04111 ( 2013 . 01 ) ; G06F
`2203 / 04112 ( 2013 . 01 )
`( 58 ) Field of Classification Search
`. . . . . . . . 178 / 18 ; 345 / 173
`USPC . . . . . . . . . . . .
`See application file for complete search history .
`References Cited
`U . S . PATENT DOCUMENTS
`7 , 148 , 704 B2
`12 / 2006 Philipp
`7 , 511 , 702 B2 *
`3 / 2009 Hotelling
`7 , 663 , 607 B2
`2 / 2010 Hotelling
`7 , 864 , 503 B2
`1 / 2011 Chang
`7 , 875 , 814 B2
`1 / 2011 Chen
`7 , 920 , 129 B2
`4 / 2011 Hotelling
`8 , 031 , 094 B2
`10 / 2011 Hotelling
`8 , 031 , 174 B2
`10 / 2011 Hamblin
`8 , 040 , 326 B2
`10 / 2011 Hotelling
`8 , 049 , 732 B2
`11 / 2011 Hotelling
`8 , 179 , 381 B2
`5 / 2012 Frey
`8 , 217 , 902 B2
`7 / 2012 Chang
`2007 / 0062739 A1 3 / 2007 Philipp
`345 / 173
`2007 / 0257894 A1 *
`11 / 2007 Philipp
`2008 / 0062139 A1 *
`3 / 2008 Hotelling et al . . . . . . . . . . . . . 345 / 173
`2008 / 0309635 Al 12 / 2008 Matsuo
`2009 / 0315854 Al 12 / 2009 Matsuo
`2012 / 0242588 AL
`9 / 2012 Myers
`2012 / 0242592 AL
`9 / 2012 Rothkopf
`2012 / 0243151 A1 9 / 2012 Lynch
`2012 / 0243719 Al
`9 / 2012 Franklin
`2013 / 0076612 A1 3 / 2013 Myers
`FOREIGN PATENT DOCUMENTS
`. . . . . . . . . . . . G06F 3 / 041
`1 840 714 Al
`10 / 2007
`1 / 2009
`2009007704 AL
`
`US 9 , 823 , 784 B2
`Page 2
`
`345 / 173
`
`WO
`WO
`WO
`
`2009016382 A2
`2009027629 AL
`WO 2012 / 129247
`
`2 / 2009
`3 / 2009
`9 / 2012
`
`OTHER PUBLICATIONS
`“ Cambrios Technologies Corporation Awarded Department of
`Defense Contract for Flexible Solar Cells ” , [ online ] . [ retrieved Apr .
`20 , 2010 ] . Retrieved from the Internet : < URL : < http : / / www .
`cambrios . com / 200 / DOD _ Release . htm > , ( Apr . 12 , 2010 ) , 2 pgs .
`“ New Silver Conductive Inks Target High - Growth Touch Screen
`and OLED Markets ” , [ online ] . [ retrieved Apr . 20 , 2010 ] . Retrieved
`from the Interent : < URL : http : / / www2 . dupont . com / MCM / en _ US /
`news _ events / article20100413 . htrnl > , ( Apr . 13 , 2010 ) , 3 pgs .
`“ Printing of Antennas and Flexible Circuits ” , Core Applications &
`Technologies , © 2009 Conductive Inkjet Technology Ltd . , ( Oct .
`2009 ) , 23 pgs .
`Hörteis , M . , et al . , “ Fine Line Printed and Plated Contacts on High
`OHMIC Emitters Enabling 20 % Cell Efficiency ” , 2009 34th IEEE
`Photovoltaic Specialists Conference ( PVSC ) , ( 2009 ) , 000060
`00065 .
`Atmel Corporation , “ Touch Sensors Design Guide ” ; Jan . 22 , 2009 ;
`http : / / www . atmel . com / dyn / resources / prod _ documents / doc 10620 .
`pdf .
`Chinese First Office Action and English Translation of the Text of
`the First Office Action for Application No . 200910134421 . 2 ; 15
`pages , dated Jul . 17 , 2012 .
`Questel English Translation of Chinese Patent No . CN 101101525 ;
`9 pages , dated Aug . 21 , 2012 .
`U . S . Appl . No . 61 / 454 , 936 , filed Mar . 21 , 2011 , Myers .
`U . S . Appl . No . 61 / 454 , 950 , filed Mar . 21 , 2011 , Lynch
`U . S . Appl . No . 61 / 454 , 894 , filed Mar . 21 , 2011 , Rothkopf .
`The Patent Office of the People ' s Republic of China ; Second Office
`Action and English Translation of Text of the Second Office Action
`for Chinese Patent Application No . 200910134421 . 2 ; 15 pages ,
`dated May 9 , 2013 .
`Chinese Fifth Office Action and English Translation of the Text of
`the Fifth Office Action Issued by State Intellectual Property Office
`for Application No . 200910134421 . 2 , 14 pages , dated Dec . 22 ,
`2014 .
`Taiwan Office Action and English Translation of the Text of the
`Office Action Issued by Intellectual Property Office for Application
`No . 098112108 , 12 pages , dated Apr . 9 , 2015 .
`* cited by examiner
`
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`
`( 52 )
`
`( 56 )
`
`EP
`WO
`
`IPR2020-00998
`Apple EX1010 Page 2
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 1 of 10
`
`US 9 , 823 , 784 B2
`
`103
`
`101
`
`104
`1025
`
`101
`
`101
`
`FIG . IA
`
`102
`
`101
`
`FIG . 1B
`
`FIG . IC
`
`IPR2020-00998
`Apple EX1010 Page 3
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 2 of 10
`
`US 9 , 823 , 784 B2
`
`KTM
`
`102 +
`
`100 -
`
`102
`
`1027
`
`203
`205
`205
`
`206
`
`bamboo
`
`* 203
`
`210
`
`.
`
`Hasta
`Till TV
`ului
`FIG . ID
`
`108
`
`106
`
`106
`
`una carta dan
`
`memang banyak yan
`
`g menyena
`
`FIG . IE
`
`ht
`101
`
`SSSSS . _
`
`201
`7 - 2011
`2201
`
`211
`204
`
`FIG . 2A
`
`t
`
`FIRST AXIS
`202
`
`IPR2020-00998
`Apple EX1010 Page 4
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 3 of 10
`
`US 9 , 823 , 784 B2
`
`nunununull
`
`FIG . 2B
`
`208
`
`??
`
`FIG . 20
`
`209w
`
`OTCH
`
`FIG . 2D
`
`TV ?? ?
`
`?RRE WW _ twtw
`
`-
`
`306 /
`
`F307
`
`?
`
`|
`
`?
`
`? ?
`205 ? ?
`0 . 333V
`FIG . 3
`
`0 . 6666 /
`
`303
`301
`?? ?
`302
`~ 304
`
`IPR2020-00998
`Apple EX1010 Page 5
`
`
`
`Us podent m . com
`
`Nov . 21 , 2017
`
`atent
`
`Sheet 4 of 10
`
`US 9 , 823 , 784 B2
`
`men 4031
`omn
`ibus
`
`omnes en
`
`centre
`
`d
`
`e
`
`promenade
`
`
`
`
`
`momentana nueva seadus
`
`7401
`
`403
`
`< = 8mm
`of
`< = 8mm
`
`, 08 to 10mm TYP
`
`402
`
`OOO
`FIG . 4
`
`-
`
`-
`
`-
`
`OOO
`FIG . 5A
`
`Alfabeti
`1417 + + +
`
`FIG . 5B
`
`IPR2020-00998
`Apple EX1010 Page 6
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 5 of 10
`
`US 9 , 823 , 784 B2
`
`601
`
`603
`
`603
`
`- 604
`
`602
`
`wwwwww
`
`wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
`
`-
`
`-
`
`-
`
`OOO
`
`www .
`
`FIG . 6
`
`601
`
`701
`
`703
`
`1 / 2 PITCH
`K
`| 705
`
`-
`
`-
`
`-
`
`- - -
`
`-
`
`PITCH < = 8mm
`704
`
`1702
`SECOND AXIS
`90°
`
`FIRST AXIS
`
`14 - - 4 - - - - 4
`
`FIG . 7A
`
`IPR2020-00998
`Apple EX1010 Page 7
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 6 of 10
`
`US 9 , 823 , 784 B2
`
`1
`
`RRRR
`NON
`
`MMM
`
`EJ +
`
`1 17 . 11
`
`w
`
`* MY .
`
`WW . .
`
`A
`+
`. itu
`
`. . . . . . . . . . . . . . . . . . . . . .
`+ +
`.
`
`.
`
`+
`. .
`
`N
`
`.
`
`.
`
`. .
`
`t
`
`7
`
`.
`
`T
`
`.
`
`F
`
`itit
`F7F7
`
`1FAI F1 HIFI
`
`TELEEEEE . .
`
`IV . F1
`FIF 11
`
`FRANK +
`
`7
`
`F
`
`\
`
`10
`
`\
`
`1
`+
`1
`) LIPIETEI
`E
`IIIIIIIIII . .
`ut ur
`I
`
`+
`
`. 77
`F
`.
`FF 27 . 1
`
`151 Ft +
`1
`+
`1
`
`+
`
`+
`
`+ LIRII
`E
`r
`+
`+
`Ett T111 Eur
`IHRRAFAR .
`17FR FH
`
`F 19 11 .
`T
`1
`1 E 1
`T
`+
`
`1
`
`+
`
`1
`
`EM11111
`
`+ Fatirtit
`HERNIRARI RRAH *
`
`.
`
`*
`
`*
`
`*
`
`\
`
`IT 1
`
`.
`
`.
`
`.
`
`. F
`
`F
`
`.
`
`.
`
`.
`
`F1 FFI 1
`
`4 EE - EIL
`
`po
`- Tessaroe
`
`.
`
`I
`.
`.
`.
`F
`.
`.
`i uuritutu
`# FNI FUERINE
`
`+
`1
`1
`+
`1
`+
`1
`+
`
`
`NHERE ! .
`
`1
`
`+
`
`1
`
`t .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`R
`
`+
`
`.
`
`F
`
`.
`
`I
`
`.
`
`F
`
`.
`
`- NEFERTE
`
`Mitt
`
`+
`
`+
`
`+
`
`\
`
`YLARI
`
`1
`
`7
`
`. TIT .
`
`.
`
`.
`
`7
`
`UNT UK *
`
`* 1
`
`M
`
`*
`
`1
`
`ANUNU #
`
`1 NI
`
`UKIENK KINOYFLIK NIKKIKE IKK + FIEL * KYKINERY
`
`II . ZELEPE E 4E L144 . TIE
`
`Itutti
`1 E1 EEE 1 TF1
`
`1
`
`E
`
`.
`
`.
`1
`ut 1
`- RETJE
`
`1
`
`1
`
`T
`
`1
`
`*
`
`1
`.
`N
`ELEIF 1
`
`FIG . 7B
`
`IPR2020-00998
`Apple EX1010 Page 8
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 7 of 10
`
`US 9 , 823 , 784 B2
`
`?ALL
`
`804
`
`803
`802 802 802 | | 805
`
`- 803
`
`?IO?? : ??? w??? ??? * wODE
`
`?
`
`?
`
`?
`
`?
`
`? ?
`
`801
`
`FIG . 84
`
`808 806 808806
`illi
`? ~ 807 !
`
`* 809
`FIG . 8B
`
`1110
`
`TOUCH
`
`PARTIAL INFLUENCE
`BUT NO TOUCH
`FIG . 9
`
`IPR2020-00998
`Apple EX1010 Page 9
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 8 of 10
`
`US 9 , 823 , 784 B2
`
`1002
`
`???????
`???????
`
`10031
`
`1001
`
`FIG , 10
`
`~ 1003
`
`1102
`
`1102
`
`1102
`
`107
`
`1108
`
`< = 8mm
`
`1101
`
`1106
`1101?
`
`?
`
`1105
`
`1104
`
`~ 1101
`
`? FIRST AXIS
`1103
`FIG . 11
`
`IPR2020-00998
`Apple EX1010 Page 10
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 9 of 10
`
`US 9 , 823 , 784 B2
`
`R
`
`W
`
`.
`
`E
`
`#
`
`*
`
`*
`
`#
`
`1P11 FPI11IFE + FEI :
`
`1
`
`#
`+
`
`#
`
`$
`
`#
`
`#
`
`#
`T
`
`#
`
`1
`
`.
`
`#
`
`.
`
`#
`
`#
`
`1 FE1FF 111FIN 1 FI
`LEET E1 t E11EF11 F
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`
`#
`
`#
`
`1 1LEI11E
`* KNIK
`
`. 11 . 11 : EITBEER
`E
`11 +
`-
`tai . NRININNI . LE
`Mitt titt
`
`+
`
`E
`
`IEEIIEFNI + IIIIIIIIIIIIIII11 + FII11EE 111
`
`* FR . TK
`
`*
`
`.
`
`.
`
`.
`
`+
`
`1
`
`$
`
`.
`
`.
`
`.
`
`1 UMHM +
`
`AA FR .
`
`KFT . IF
`
`I 11
`
`LEE *
`
`1
`
`# EI *
`
`t
`
`*
`
`*
`
`*
`
`*
`
`*
`
`*
`
`*
`
`*
`
`*
`
`* *
`
`*
`
`*
`
`*
`
`E
`
`-
`
`II + FINI1
`
`F11 F
`
`11 +
`
`F
`
`+ FE
`
`Nutt *
`
`*
`
`*
`.
`
`.
`
`.
`
`*
`
`T
`
`*
`
`.
`
`*
`
`.
`
`+ EE11E
`
`FIG . 12
`
`90
`
`IPR2020-00998
`Apple EX1010 Page 11
`
`
`
`atent
`
`Nov . 21 , 2017
`
`Sheet 10 of 10
`
`US 9 , 823 , 784 B2
`
`1rLILE LP - E11 EP
`
`E
`
`-
`
`1 LE . IT E
`
`-
`
`1 IE ,
`
`1
`TI
`
`1
`
`1
`
`F
`E
`T I .
`
`1
`
`.
`
`1
`
`F
`
`1
`
`F
`
`17 E
`+ E1 2
`1
`11 . 12 . 17
`
`.
`
`
`
`
`
`+ LE ) 11 . E .
`
`P
`
`.
`
`F
`
`. JIEP
`
`E
`
`LEPIE + LEIT EI P1TEITP 1r 11 EP .
`
`1 LEP
`
`I
`
`F
`
`HFF7 * AR 17 + F1177 + F
`
`minden
`
`TEE 11 + 1LTE 1
`.
`
`+ 13 E 11 LE 17T
`+
`3
`+
`1
`+
`1
`+ E RITE 1 1 ET +
`
`1
`+
`E
`+
`. EE FT . EEEEEEUTE EITT
`
`H E 13T71 +
`
`E
`
`+
`
`+
`
`+ CE E
`
`LE 1
`
`+
`
`1
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`4
`
`.
`
`.
`
`. .
`
`.
`
`.
`
`tttttttttttttttttt 14 . it itttt11ttt
`EPIFIEISLEPIE . OFES - IEIIEIIELE
`FTET .
`.
`. 7
`4 . ET
`L
`.
`C .
`. .
`F F
`.
`. .
`. .
`. .
`.
`.
`.
`.
`
`.
`
`.
`
`.
`
`.
`
`2PEE111E1FFEEPEE11E ELE
`
`E
`
`.
`
`.
`
`. LEI .
`
`.
`
`SEE .
`
`.
`
`.
`
`. EE
`
`*
`
`*
`
`I ytt * tttttttt
`
`Moto
`It
`
`1 .
`
`.
`
`E 17111 LE ET TEEFT E11 E
`1
`.
`.
`.
`.
`.
`.
`.
`.
`. .
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`WWWLWMWWWWWWWWWWWWWWWWWWWWWWWWMMMMMMMMMMMMMMMu1
`H4 , HWW
`
`.
`.
`.
`
`
`. ELITEPI E II E
`1
`.
`EIIEEE11EE . PI11 4EE13 IEI . EE1EE 1
`HENNI ARRIARAN IRENAR EINNIRNIR
`
`
`Frir t . ttr + +
`
`+ LIT + 1
`t
`.
`EP .
`1 titi E ttor E
`42EU + ILINE T
`E
`EZEREINENt FEIRINEI .
`E
`
`ham EET in
`
`Tr
`
`M
`
`*
`
`#
`
`.
`
`+
`
`10
`
`102
`
`i nitati
`NIHY # MyM HUN
`#
`*
`*
`*
`.
`UNUN M
`M
`NN NU
`tit
`t
`. FI
`. tt .
`. tt .
`5
`ttrt 1
`. itt .
`.
`Itt .
`1
`.
`E N EI41
`+ EL + T
`. FE +
`E
`A
`$
`+ E1 +
`E
`EE + 14 NEFE4 +
`E + RE 11 . EE + IC + 1
`PE +
`. LE LE
`I
`. II . II . EIL .
`I
`L
`.
`.
`.
`LE 2
`. L
`I LEIII .
`.
`.
`.
`.
`.
`.
`.
`.
`. TE
`L E .
`+
`I
`.
`.
`.
`MINI MINORN . CLEty1
`ER LYNLAINEN + 11 RIIKINKENNI ER EIER
`+ EE
`+ EN RE
`#
`EE
`EEERENEURONEFREE !
`L .
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`+ TERENEEREENER
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`
`.
`
`E1E1I3E1E1EE3E11EF3E1E11E EI LEIJELIEFERREIIEEJ ELF ELF
`E
`
`) LITE . .
`. P114 EPPT ESTE P
`.
`, EE , E14E F1 ,
`F
`.
`P
`. 414PT PEPPE
`
`IN HIIHIN NARII + NINI !
`+
`+ WHM W WW +
`+
`+
`
`MMMMMMMMMMH + +
`+
`+
`+
`+
`IIIIIIIIEIIEEIIEIIE EFIIFEELIFTE FEIJERII EPIFIZIIIEIIEEIIIETEELILE
`ERNEHERT NEURRI HARI . RARNARNE ERR :
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`
`, EFI . EF Sah IIEIIEI PE 11
`. EIIIEFILE TE1 LEI EI . LF1LF
`1
`.
`1
`ELETE - EETRIT
`
`. ETTE , ETTEI E . ETETEJTE + EFFET 1E E
`
`TTE
`
`FEILE
`
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`. .
`. .
`.
`.
`.
`.
`.
`.
`. .
`.
`.
`.
`.
`11E - 11t1111E11 EIFE + IE FF EI3 - 11 - 1EF11F1IFP111FEIFELEIFFE .
`FI
`7F RETTFERNF 7
`ET
`1
`E7
`
`H76
`
`+ AN . NNNNNNNNNNNNNN
`N
`NINN . +
`
`+ NIR HAAR II A . ARII +
`N
`A
`+
`R
`IN
`*
`IN .
`+ NR +
`+ +
`t
`.
`+
`+
`+
`+
`+
`+
`"
`.
`.
`.
`N
`F4114PN RECHE
`RhF1AETHIRTINT # FERFEYFEIRE
`I
`.
`I
`.
`T
`.
`I
`.
`2
`.
`1
`.
`1
`.
`1
`.
`1
`.
`L
`.
`.
`.
`t t
`dttttt It starts +
`Lt 11 T 11 E
`
`1
`
`+
`
`1
`
`.
`
`1
`
`+
`
`1
`
`.
`
`3
`
`.
`
`t
`
`.
`
`+ 11 +
`
`.
`
`+
`
`+ ttt . t
`
`F
`F
`7
`.
`.
`.
`.
`.
`E
`.
`1
`.
`.
`.
`7
`7
`.
`7
`.
`E
`F
`.
`.
`.
`7
`.
`.
`F
`.
`.
`.
`7
`F
`.
`.
`.
`.
`F
`itt NOWYIRIRI
`
`I NI " 1 HNEIRINH YEYNIR + V
`tu
`tu .
`.
`.
`.
`.
`.
`.
`.
`. tt
`.
`t
`+
`+
`+ Lttt
`+ E1 LP
`+
`1211 E
`E 13 E 11E 7
`LE 12 + IPE E
`LF1 + PL + C
`1 PL E
`+
`1
`+
`1
`+
`1
`E
`11 +
`I
`
`E 11 E
`1 LI . 1
`. HNM IN # NOIR HIRPNRRARONARARNIHARIRI .
`HR
`HHHH
`. .
`WWW WWWWWWWW
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`INTERIOR ENEROWAN24
`+ HN
`+
`+
`+
`+
`+
`+
`1
`+
`1
`+
`H
`+ II +
`t
`1
`+
`1
`+
`M
`LF1111111EF1EEFT EE1r EE11 - SE EFTEFETTE
`
`tt .
`
`+
`
`*
`
`14 +
`
`dtttttttttttttttttttttt
`.
`HARTHO
`* FRAMKNAKNAK . I
`IINNINER
`* NE I
`I
`1 NE 1
`+ HEURE 1
`+
`1
`+
`E
`+ F
`
`F
`*
`*
`* FHF .
`+ TIETYINEN
`E E 1
`+
`1
`EIE +
`
`1
`
`*
`
`I *
`
`N
`
`*
`
`R
`
`*
`
`T * *
`
`LEIL LE
`
`IE + PLEIE +
`
`E
`
`+
`
`.
`
`t
`
`.
`
`E
`
`. L
`
`t
`
`+
`
`1
`
`E
`
`1 IFT
`
`t
`
`+
`
`V
`
`+
`
`+
`
`H
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`IE +
`
`+
`
`+ LE + ELT
`
`+
`
`+
`
`t
`
`1
`
`+
`
`1
`
`E 11 +
`
`1
`
`N
`1 E
`
`T
`
`t
`M
`+
`IE TE
`
`INFRAROL FNAFHANFIENFIN * HENNAFRENNF . HENTAIRN FAHREFFNERI
`MMMMMMMMMMMMM
`
`. TEXTE VEZES , E11
`E
`. E1 EPILE EET E1E1 TE - 4EEEE 1 + RE + KI .
`
`+
`IERARH FIRFAHRIRINIHI + HARRIETARIFAHRt . FRIIKAR
`
`1
`
`I
`
`. A NNA +
`
`1
`
`+
`
`+
`
`+
`
`E 11TLIL FILE 1 EIE ET T
`
`* AFI NI + Ft ACE +
`*
`+
`+
`+
`SA +
`+
`VA
`YNN NNNNNNNNNNNNN
`E
`IE 1
`+ E1 E2LP +
`E
`1
`E
`1
`
`+
`
`LCPE 1 LE 1
`
`1
`
`1
`
`1
`
`1
`
`+
`
`E
`
`1
`
`+
`
`1
`
`EE -
`E11 LE +
`
`+
`
`+
`
`13 ,
`1
`
`
`
`TITII . .
`
`.
`
`.
`
`, LIE LE .
`E
`PTF + PT
`. 717
`
`.
`
`ET
`
`E
`
`I FEM . TIL ET
`. FO 1
`, E11
`
`E11E1EET TPE11 LE FT EL 1 PE
`1
`. 1
`1
`E
`.
`.
`.
`. EE
`4
`.
`7
`17 .
`LItI LtI + 1RtIntI +
`+ IN + IRHLII
`
`I
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`H
`
`T
`
`•
`
`H
`
`À
`
`-
`
`1
`
`+
`
`1
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`1
`
`+
`
`1
`
`+
`
`+
`
`1
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`1
`
`+
`
`1
`
`+
`
`+
`
`1
`
`1
`
`1
`
`1
`
`1
`
`+
`
`+
`
`1
`
`1
`
`1
`
`1
`
`+
`
`+
`
`+ 1
`
`1
`
`1
`t
`
`E7
`
`F
`
`E
`
`7
`
`+
`
`+
`
`+
`
`+ +
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+
`
`+ +
`
`+
`
`+ +
`
`t
`
`E
`
`1
`
`+
`
`+
`
`1
`
`+
`
`t
`
`1
`
`+
`1
`+
`1
`+
`1
`1
`it 911
`
`+
`
`+
`
`+
`
`+
`
`+
`
`E
`
`E7
`
`ET 11E EE
`E 24 E 24
`
`It IF . Ft . IIF . FF .
`I
`
`+
`
`+
`
`+ +
`
`+
`
`+
`
`+
`
`+
`
`E
`
`TE P
`+
`
`+
`
`T
`
`+
`
`E
`+
`
`+
`
`.
`
`T
`
`.
`EE 7
`. TEFT . F
`
`.
`
`t
`
`17 .
`F
`.
`I
`
`.
`
`E 77
`F
`.
`
`+
`
`+
`
`1
`
`+
`
`P
`
`+
`
`+
`
`+
`
`14 EP1
`+
`+
`E
`T
`+
`
`P
`
`+
`
`+
`
`E
`
`EE 11 11 E ELIJ
`+ ELELE 12
`7 PE1P IT + 13 E 17 E
`
`+ 11E1 E
`#
`#
`#
`#
`# # #
`#
`#
`# #
`IR
`* #
`# *
`# #
`#
`# #
`# #
`#
`#
`# #
`#
`#
`#
`#
`#
`#
`#
`#
`#
`#
`# #
`#
`#
`IX . IRRAHIHIIRRIRANIH VIRRANDIRILIA RHIW 1111 *
`# CER KUAHIR
`
`+ 11 + E
`
`+
`
`1
`
`FIG . 13
`
`IPR2020-00998
`Apple EX1010 Page 12
`
`
`
`US 9 , 823 , 784 B2
`
`5
`
`15
`
`accuracy of the reported touch location i . e . correspon
`CAPACITIVE TOUCH SCREEN WITH NOISE
`SUPPRESSION
`dence between real physical location and reported
`location . This is broadly known as “ linearity ” or “ non
`linearity ” when referring to the measured error .
`BACKGROUND OF THE INVENTION
`immunity of the sensor to external electrical noise
`sources .
`The following describes a new invention in the field of
`sensitivity of the sensor to human touch i . e . its ability to
`capacitive touch screens or 2 - dimensional capacitive trans
`detect a touch through thicker panel materials , or to
`ducing ( 2DCT ) sensors . U . S . Pat . No . 6 , 452 , 514 , U . S . Pat .
`detect a lighter or smaller touch .
`No . 7 , 148 , 704 and U . S . Pat . No . 5 , 730 , 165 disclose a
`spatial resolution of the sensor i . e . its ability to report
`capacitive measurement technique which makes it possible 10
`small changes in touch location .
`to create touch responsive transparent or opaque sensing
`quality of the output in terms of the noise or jitter
`regions that can detect human touch through several milli
`amplitude in the reported location .
`meters of plastic or glass . Described herein is a new struc
`optical quality of the sensor for the transmission of light ,
`ture for a touch screen that allows significant enhancement 15
`for factors like its transparency , its hue , its haze , the
`in both operation and appearance of the sensor .
`overall electrode pattern visibility etc .
`U . S . Pat . No . 6 , 452 , 514 describes a capacitive measure
`optical behavior of the sensor to shallow angle reflected
`light i . e . the visibility of the electrode pattern and any
`ment technique which is incorporated by reference herein ,
`color shifts in the reflected light .
`that uses a transmit - receive process to induce charge across
`minimizing any errors induced in the reported location
`the gap between an emitting electrode and a collecting 20
`electrode ( the transmitter and the receiver respectively , also
`caused by slight mechanical flexing during human
`referred to as X and Y ) . The capacitive sensing described in
`touch . This tends to cause a change in the distance
`between the sensor and any underlying display or other
`U . S . Pat . No . 6 , 452 , 514 may be referred to as mutual
`capacitive or active type 2DCT sensors . As a finger touch
`mechanical grounded structure which in turn causes
`capacitive changes similar to a touch .
`interacts with the resulting electric field between the trans - 25
`reducing the electrical resistance of the electrodes to
`mitter and receiver electrodes , the amount of charge coupled
`allow efficient capacitive sensing within an acceptable
`from transmitter to receiver is changed . A particular feature
`time ( often the overall measurement time of the touch
`of the measurement technique is that most of the electric
`charge tends to concentrate near to sharp corners and edges
`screen needs to be at or below 10 ms so limiting the
`amount of settling time that can be used to make each
`( a well known effect in electrostatics ) . The fringing fields 30
`between transmitter and receiver electrodes dominate the
`measurement ) .
`reducing the number of layers in the physical construction
`charge coupling . The electrode design therefore tends to
`to minimize manufacturing cost and to improve optical
`focus on the edges and the gaps between neighboring
`properties .
`transmitter and receiver electrodes in order to maximize
`reducing side - effects in the quality of reported coordinates
`coupling and also to maximize the ability of a touch to 35
`or in the ability of the sensor to detect a touch , near to
`interrupt the electric field between the two , hence giving the
`the edges of the sensor . This region typically presents
`biggest relative change in measured charge . Large changes
`are desirable as they equate to higher resolution and equally
`difficult challenges in this regard because of the non
`uniformity of the electrode pattern ( its ends ) and the
`to better signal to noise ratio .
`fact that interconnecting tracks tend to reside at the
`Aspecially designed control chip can detect these changes 40
`edges of the sensor .
`in charge . It is convenient to think of these changes in charge
`reducing the total number of electrodes used as each
`as changes in measured coupling capacitance between trans
`electrode requires some connection to the control chip
`mitter and receiver electrodes ( charge is rather harder to
`and so more electrodes equates to a more complex chip
`visualize ) . The chip processes the relative amounts of
`and hence higher cost .
`capacitive change from various places around the touch 45
`In order to optimize linearity , the electrode pattern design
`screen and uses this to compute the absolute location of
`is critical . Linearity is one of the primary measures of
`touch as a set of x and y coordinates . In order for this to be
`quality of a touch screen because as the linearity degrades ,
`possible a set of spatially distributed electrodes must be
`it becomes harder to report an accurate touch location in
`used . Commonly , these electrodes are required to be trans -
`parent so that the touch screen can operate in front of a 50 some regions of the screen . A sensor design that offers
`display such as a liquid crystal display ( LCD ) screen or other
`excellent intrinsic linearity is a key goal therefore . While it
`display screen type , for example organic light emitting diode
`is possible to mathematically correct such non - linearity via
`( OLED ) type screens . To achieve this electrodes are often
`well known techniques such as a look - up table or piecewise
`fabricated from a material known as Indium Tin Oxide ( ITO )
`linear correction , any of these methods actually trades off
`but other transparent conductive materials are also suitable . 55 spatial resolution for reported linearity , and so is always a
`ITO has desirable properties in optical terms , but can be
`compromise .
`substantially ohmic which can have a negative impact on
`In designing the electrodes a key objective is to arrange
`capacitive measurements if the resistance and capacitance
`that the electric field that propagates from transmitter to
`combination leads to time constants that prevent timely
`receiver does so in a way that causes a smooth and progres
`settling of the charge transfer process .
`60 sive gradation from one electrode to the next . This way , as
`Another
`example
`2DCT is
`disclosed
`in
`a touch moves from region to region , the capacitive change
`measured by the control chip also changes in a smooth and
`US20070062739A1 .
`In order to create a sensor that can report the absolute
`progressive way and hence contributes to good intrinsic
`linearity . The touch itself actually influences this process
`coordinates of the location of the touch ( or more than one
`touch ) on the surface of the sensor or the overlying plastic 65 significantly and will tend to “ mix ” the fields from neigh
`or glass panel , the electrode arrangement must be specifi -
`boring electrodes . This contributes to the overall smoothness
`cally designed to optimize the following aspects :
`of transition , but does tend to lead to some variation in
`
`IPR2020-00998
`Apple EX1010 Page 13
`
`
`
`US 9 , 823 , 784 B2
`
`15
`
`ments performed . Thus , the sensor can be arranged to
`linearity depending on the size of the touch applied . Again ,
`effectively pick up the noise output from a display screen
`electrode design needs to be carefully considered to opti
`and automatically synchronize the charge - transfer bursts to
`mize the linearity across a range of touch sizes .
`occur during stages of the noise output cycle .
`As described above the quality of the output in terms of
`However , noise reduction techniques such as those
`the noise or jitter amplitude in the reported location should 5
`described above require more complex measurement cir
`be optimized . However , 2DCT sensors can be sensitive to
`cuitry . This makes the measurement circuitry more expen
`external ground loading . Furthermore , electrical noise gen
`sive and may increase the time taken to complete an acqui
`erated from LCD screens can interfere with capacitance
`sition cycle .
`measurements when a pointing object approaches the
`It would therefore be desirable to provide an electrode
`screen . Known methods to minimize the effects of noise on 10
`pattern suitable for mutual capacitive or active type 2DCT
`capacitive coupling is to increase the separation or air gap
`sensor that can be embodied with an electrode pattern with
`between an LCD screen and an overlaying 2DCT sensor .
`reduced noise pick - up .
`Alternatively a shielding layer may be incorporated between
`the LCD screen and a 2DCT sensor to reduce or block the
`SUMMARY OF THE INVENTION
`noise induced by the LCD screen .
`WO 2009 / 027629 published on 5 Mar . 2009 describes a
`According to a first aspect of the invention , a capacitive
`capacitive touch sensor comprising a dielectric panel over
`touch sensor is provided comprising a touch sensitive panel
`lying a drive electrode with two sense electrodes . One of the
`having a plurality of drive electrodes arranged on one side
`sense electrodes is positioned to be shielded from the drive
`electrode by the first sense electrode , so that the first sense 20 of a substrate in
`a first layer and a plurality of sense
`electrode receives the majority of the charge coupled from
`electrodes arranged on the other side of the substrate in a
`the drive electrode and the second sense electrode primarily
`second layer so that the sense electrodes cross the drive
`registers noise . A sensing circuit including two detector
`electrodes at a plurality of intersections offset from each
`channels is connected to the first ( coupled ) and second
`other by the thickness of the substrate , wherein the drive
`( noise ) sense electrodes to receive signal samples respec - 25 electrodes substantially entirely cover the first layer with
`tively . The sensing circuit is operable to output a final signal
`individual ones of the drive electrodes being separated from
`obtained by subtracting the second signal sample from the
`neighboring drive electrodes by small gaps .
`first signal sample to cancel noise .
`This approach has several important advantages . The
`However , the methods described above increase the size
`touch sensor only requires the two layers of electrodes
`and thickness , and may decrease the resolution of a device 30 recited above to function , so that a third noise - suppressing
`incorporating a display screen with a 2DCT sensor when it
`layer as adopted in some prior art designs is superfluous . A
`is more fashionable and desirable to produce smaller
`two layer construction also leads to improved optical trans
`devices . Furthermore , additional steps are required during
`mission , thinner overall depth and lower cost compared with
`manufacture and as a result there is an increased cost due to
`designs with a greater numbers of layers . The area - filling
`further components being needed .
`35 design for the drive electrodes with small gaps allows for an
`European patent EP 1821175 describes an alternative
`almost invisible drive electrode pattern , for example when
`solution to reduce the noise collected on a 2DCT touch
`using ITO , and also isolates the sense lines from capacitive
`sensor . EP 1821175 discloses a display device with a touch
`effects below the first layer , for example noise from an
`sensor which is arranged so that the two dimensional touch
`underlying LCD module or other noise source . The “ flood
`sensor is overlaid upon a display device to form a touch 40 ing ” of the first layer with conductive material also allows
`sensitive display screen . The display device uses an LCD
`the second layer to be implemented with narrow sense
`arrangement with vertical and horizontal switching of the
`electrodes , far narrower than the dimension of the sensing
`LCD pixels . The touch sensing circuit includes a current
`object . The second layer can also be made invisible either
`detection circuit , a noise elimination circuit as well as a
`through in - filling of islands of electrode material between
`sampling circuit for each of a plurality of sensors , which are 45 the sense electrodes to also " flood ” the second layer , or
`arranged to form the two - dimensional sensor array . The
`alternatively simply by making the sense electrodes very
`current detection circuit receives a strobe signal , which is
`thin or very sparse with line widths so small that they are
`generated from the horizontal and vertical switching signals
`invisible . This sparse approach using meshes is described
`of the LCD screen . The strobe signal is used to trigger a
`further below . The reduced sense electrode area also reduces
`blanking of the current detection circuit during a period in
`50 susceptibility to coupling noise from touches .
`which the horizontal switching voltage signal may affect the
`The drive electrodes are preferably separated by a pitch of
`comparable dimension to the touch size of the touching
`measurements performed by the detection circuit .
`WO 2009 / 016382 published on 5 Feb . 2009 describes a
`object for which the sensor is designed
`sensor used to form a two dimensional touch sensor , which
`The touching object for which the sensor is designed may
`can be overlaid on a liquid crystal display ( LCD ) screen . As 55 be a finger , e . g . of touch size 8 - 10 mm diameter , and the
`such , the effects of switching noise on the detection of an
`pitch is around 8 mm or less . A stylus could also be used .
`object caused by a common voltage signal of the LCD
`The small gaps between adjacent drive electrodes are
`screen can be reduced . The sensor comprises a capacitance
`preferably dimensioned to be sufficiently small to be invis
`measurement circuit operable to measure the capacitance of
`ible or almost invisible , for example less than around 100
`the sensing element and a controller circuit to control 60 micrometers , preferably having dimensions of a few tens of
`charging cycles of the capacitance measurement circuit . The
`micrometers .
`controller circuit is configured to produce charging cycles at
`The sense electrodes are advantageously narrow in com
`a predetermined time and in a synchronous manner with a
`parison to the size of the touching object . For example , the
`noise signal . For example , the charge - transfer cycles or
`sense electrodes may have a line width of one quarter or less
`' bursts ' may be performed during certain stages of the noise 65 of the size of the touching object . In one embodiment , the
`output signal from the display screen , i . e . at stages where
`touching object for which the sensor is designed is a finger
`noise does not significantly affect the capacitance measure -
`with a touch size of 8 - 10 mm diameter , and the sense
`
`IPR2020-00998
`Apple EX1010 Page 14
`
`
`
`US 9 , 823 , 784 B2
`
`different substrates which can then be assembled in engage
`electrodes have a line width of 2 mm or less , for example 0 . 5
`ment with each other to provide an offset between the two
`mm . The sense electrodes may have a line width one quarter
`or less than the pitch of the drive electrodes .
`layers equal to the thickness of one of the substrates , or both
`of them , depending on which side of the substrates the
`In some embodiments , the second layer additionally
`accommodates isolated elements arranged between the sens - 5 electrodes are arranged .
`ing electrodes so that the sense electrodes and the isolated
`The touch sensitive panel has a plurality of drive elec
`elements together substantially entirely cover the second
`trodes arranged on one side of a substrate in a first layer and
`layer with individual ones of the sense electrodes and
`a plurality of sense electrodes