(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2010/0144391 A1
`Chang et al.
`(43) Pub. Date:
`Jun. 10, 2010
`
`US 201001 44391A1
`
`(54) INTEGRATED TOUCH PANEL FOR ATFT
`DISPLAY
`
`(76) Inventors:
`
`Shih Chang Chang, Cupertino, CA
`(US); John Z. Zhong, Cupertino,
`CA (US)
`
`Correspondence Address:
`APPLE C/O MORRISON AND FOERSTERLLP
`LOS ANGELES
`555 WEST FIFTH STREETSUITE 3500
`LOS ANGELES, CA 90013-1024 (US)
`
`(21) Appl. No.:
`
`12/315,869
`
`(22) Filed:
`
`Dec. 5, 2008
`
`Publication Classification
`
`(51) Int. Cl.
`(2006.01)
`H04B I/38
`(2006.01)
`G06F 3/04
`(2006.01)
`GO2F I/343
`(52) U.S. Cl. .......................... 455/566:345/173; 349/187
`(57)
`ABSTRACT
`This relates to displays for which the use of dual function
`capacitive elements does not result in any decreases of the
`aperture of the display. Thus, touch sensitive displays that
`have aperture ratios that are no worse than similar non-touch
`sensing displays can be manufactured. More specifically, this
`relates to placing touch sensing opaque elements so as to
`ensure that they are substantially overlapped by display
`related opaque elements, thus ensuring that the addition of the
`touch sensing elements does not Substantially reduce the
`aperture ratio. The touch sensing display elements can be, for
`example, common lines that connect various capacitive ele
`ments that are configured to operate collectively as an ele
`ment of the touch sensing system.
`
`
`
`1 15
`123
`yVcom Rdata
`
`1 17
`Gdata
`
`119
`Bdata
`
`125
`yVcom
`
`Rdata
`
`DELL EXHIBIT 1042 PAGE 1
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 1 of 65
`
`US 2010/0144391 A1
`
`
`
`º l l
`
`1. ‘Ol-H
`
`DELL EXHIBIT 1042 PAGE 2
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 2 of 65
`
`US 2010/014.4391 A1
`
`TFT Glass Region Layout
`
`/1 2O7
`
`2O3e
`
`H I
`H 2O3a
`2O1 N--
`203d
`203b
`204
`
`III
`
`2O6
`2O3C
`
`
`
`
`
`
`
`
`
`III
`
`H/ H
`2O5 -
`
`H H Conductive Dots
`CO -- (STN Style) for
`Non-IPS
`
`- 25 Connections
`Between Redions
`and Touch ASC
`
`
`
`LCDVCOrm
`
`
`
`Touch Circuitry
`
`MUX Connects All 25 Voom Regions to the
`LCD Driver VCOMDuring LCD Mode, Then
`During Touch Mode Uses the 25 Independently
`to Perform Multi-Touch Sensing
`FIG. 2A
`
`DELL EXHIBIT 1042 PAGE 3
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 3 of 65
`
`US 2010/014.4391 A1
`
`CF Glass Patterned ITO Region Layout
`(Note, for IPS no ITO on CF Plate is Needed)
`
`/1 257
`III
`
`251 -N.HH
`
`I
`
`255-HE
`55
`
`II
`
`
`
`25O
`25O
`Conductive Dots
`(STN Style) for
`NOn-P
`
`FIG. 2B
`
`DELL EXHIBIT 1042 PAGE 4
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 4 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 5
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 5 of 65
`
`US 2010/0144391 A1
`
`5V--
`
`CO
`
`; k-200us->
`
`LCD
`12ms
`
`Touch (Vstim)
`4ms
`
`FIG. 4A
`
`5V--
`
`Vcom
`
`LCD
`12ms
`
`TOUCh
`4ms
`
`FIG. 4B
`
`2.5V
`
`2.5V
`
`DELL EXHIBIT 1042 PAGE 6
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 6 of 65
`
`US 2010/014.4391 A1
`
`323-N
`- I -
`
`90%
`
`- -
`
`-
`
`-
`
`-
`
`a 4.5V
`
`2.5V
`
`me ar. O.5V
`
`a
`
`6.4W
`4.5V
`
`- 2.6V
`
`
`
`
`
`
`
`FIG. 5B
`
`DELL EXHIBIT 1042 PAGE 7
`
`

`

`Patent Application Publication
`
`Jun. 10
`
`2010 Sheet 7 of 65
`
`US 2010/0144391 A1
`
`
`
`- - - - -
`
`€.p
`
`
`
`U?e SuLun?OO
`
`N
`N
`
`DELL EXHIBIT 1042 PAGE 8
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 8 of 65
`
`US 2010/014.4391 A1
`
`S
`
`
`
`S
`
`
`
`S
`
`
`
`N
`
`S
`
`
`
`It
`
`C
`
`N. v
`
`F.
`N
`
`t
`
`O
`
`O)
`
`O)
`
`O)
`
`-
`
`w-
`
`ic
`
`CO
`
`to
`
`O)
`
`in
`
`O
`
`Cod
`
`O)
`
`M
`
`CO
`
`cy)
`EFF N
`ver
`n :
`
`P : c
`
`
`
`
`
`
`
`Ca
`QO
`
`S N
`
`H.
`21.
`e i
`g
`
`co
`
`(?)
`
`Ég
`f
`
`r is us well
`
`to
`to
`cy
`
`:
`
`- - - -'re or or or
`
`- An ir %
`
`
`
`
`
`
`
`s||
`
`s
`
`
`
`--
`
`cy)
`
`-
`
`W
`
`:
`
`
`
`
`
`
`
`
`
`The
`n :
`lim LS
`Hist
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`-
`
`- up us - -
`
`-
`
`-
`
`-
`
`-
`
`
`
`C
`
`CN
`
`S.
`
`DELL EXHIBIT 1042 PAGE 9
`
`

`

`=NM
`
`
`
`oS=:po=5TT"4ITTPTT|=2a=“Sr8Ne}é=WO
`a,
`yHR
` Wee©
`
`
`
`
`DELL EXHIBIT 1042 PAGE 10
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 10 of 65
`
`US 2010/014.4391 A1
`
`-> ?
`----------------
`
`810
`
`- up
`
`Finger
`
`-> X-COOrdinate
`
`C
`
`pixel
`a-5
`9 85
`
`
`
`
`
`Finger
`ity------- N-I.Y-1-----------
`802 808-
`------- -> X-COOrdinate
`4 S806
`
`
`
`FIG. 8C
`
`DELL EXHIBIT 1042 PAGE 11
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 11 of 65
`
`US 2010/0144391 A1
`
`
`
`Arravatarryxyrrx7x7x7x7x7x7x7x7xyr-A7777x7x7x7x7x7x7x7x7x777A7 r
`CXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX)
`XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
`KXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
`
`
`
`
`
`
`
`ZZZZZZZZZ Catter tetrate
`acts
`ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
`ZZZZZZZ
`KXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX RX&
`
`
`
`S
`
`
`
`
`
`
`
`
`
`
`
`S
`
`S
`
`N
`21%.4%2%
`
`
`
`N
`22222222
`N
`22222222
`N
`
`
`
`N
`
`S
`
`2
`
`2
`
`G.
`
`2
`
`
`
`i
`
`S
`
`DELL EXHIBIT 1042 PAGE 12
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 12 of 65
`
`US 2010/0144391 A1
`
`s […) C
`
`CY| ? ||| 3 ||| } || 3 ||| } | } | } || 3 ||
`
`908 Ø 6
`
`904
`
`DELL EXHIBIT 1042 PAGE 13
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 13 of 65
`
`US 2010/014.4391 A1
`
`
`
`R14
`
`R13
`
`R12
`
`R11
`
`DELL EXHIBIT 1042 PAGE 14
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 14 of 65
`
`US 2010/0144391 A1
`
`
`
`112.3a
`
`1140
`
`N1123
`
`FIG. 11
`
`DELL EXHIBIT 1042 PAGE 15
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 15 of 65
`
`US 2010/0144391 A1
`
`12O7
`
`12O5
`
`12O3
`
`12O1
`
`FIG. 12
`
`DELL EXHIBIT 1042 PAGE 16
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 16 of 65
`
`US 2010/0144391 A1
`
`go
`
`c5 13O2
`
`FIG. 13
`
`DELL EXHIBIT 1042 PAGE 17
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 17 of 65
`
`US 2010/0144391 A1
`
`
`
`1423a
`
`1415a
`
`1417a
`
`1423b
`
`N 1423 1415-1:
`FIG. 14
`
`DELL EXHIBIT 1042 PAGE 18
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 18 of 65
`
`US 2010/014.4391 A1
`
`15O1
`
`15O3
`
`FIG. 15
`
`DELL EXHIBIT 1042 PAGE 19
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 19 of 65
`
`US 2010/0144391 A1
`
`1601
`
`1603
`
`i
`
`FIG. 16
`
`DELL EXHIBIT 1042 PAGE 20
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 20 of 65
`
`US 2010/0144391 A1
`
`
`
`17O1 NO
`
`FIG. 1 7
`
`DELL EXHIBIT 1042 PAGE 21
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 21 of 65
`
`US 2010/0144391 A1
`
`1801
`
`18O3
`
`FIG. 18
`
`DELL EXHIBIT 1042 PAGE 22
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 22 of 65
`
`US 2010/014.4391 A1
`
`1 101
`1.
`
`Se
`FIG.20C
`
`1 102
`- 110
`
`- See
`FIG. 20D
`IT
`
`
`
`/ 5.
`
`DELL EXHIBIT 1042 PAGE 23
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 23 of 65
`
`US 2010/0144391 A1
`
`1101 -
`1603-N 1455b 1455C 1703
`AN-2s
`2Sea A.
`?
`Organic (Bump)
`WZZ2)
`KS
`Data-NF-AzizXX-A27xx
`Q --------Salazzea
`Satatatasaz
`7
`QK7
`A.
`NSN Srš
`1 113b E/1205 "E/ '20' Passivation Gat Slator
`M
`(SiNx)
`(SiNx)
`Al-Nza1."
`
`TO
`(,
`1693.
`E, NeN
`NSN
`
`
`
`FIG. 20A
`
`K-1 101
`1 4 O 5 C
`
`1 4 O 7 d
`
`2001 -->
`
`1405b
`22
`Z72 22d 2% 2 2xx
`42X4)
`<S3SNKSXSSN
`KZZZ7
`Com
`(n) 1 113a
`(n) 1107b
`(n+1)
`(n+1)
`
`
`
`Az22
`
`
`
`7
`
`222 22
`
`A2)
`C7
`
`7
`
`FIG. 20B
`
`DELL EXHIBIT 1042 PAGE 24
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 24 of 65
`
`US 2010/014.4391 A1
`
`IS Á|Od
`
`IS ÁIod
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`DELL EXHIBIT 1042 PAGE 25
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 25 of 65
`
`US 2010/014.4391 A1
`
`- 1101
`Cst FCM1/M2 .
`CM1/ITO CM2/ITO
`
`- 1102
`
`Cst - CM1/M2 . CM1/ITO
`
`2
`
`FIG. 21
`
`DELL EXHIBIT 1042 PAGE 26
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 26 of 65
`
`US 2010/014.4391 A1
`
`- 1101
`Cst - CM1/M2 it
`CM1/ITO "CM2/ITO
`
`
`
`- 1102
`
`Cst - CM1/M2 . CM1/ITO
`
`CM1/ITO
`~360 im2
`
`CM1/ITO
`-81 um2
`
`CM1/ITO
`~360 um2
`
`DELL EXHIBIT 1042 PAGE 27
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 27 of 65
`
`US 2010/0144391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 28
`
`

`

`Patent Application Publication
`
`Jun. 10,2010 Sheet 28 of 65
`
`US 2010/0144391 Al
`
` 156
`
`
`
`ll
` 43.4%
`
`DELL EXHIBIT 1042 PAGE 29
`
`DELL EXHIBIT 1042 PAGE 29
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 29 of 65
`
`US 2010/0144391 A1
`
`1. 2501/2502
`
`1. 2501/2502
`
`
`
`FIG. 25
`
`FIG. 26
`
`DELL EXHIBIT 1042 PAGE 30
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 30 of 65
`
`US 2010/014.4391 A1
`
`
`
`FIG. 27
`
`FIG. 28
`
`DELL EXHIBIT 1042 PAGE 31
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 31 of 65
`
`US 2010/014.4391 A1
`
`2907
`
`2903
`
`3OO1
`NO
`
`29O5
`
`29O1
`
`r
`
`FIG. 29
`
`FIG. 30
`
`DELL EXHIBIT 1042 PAGE 32
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 32 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 33
`
`

`

`Patent Application Publication
`
`Jun. 10,2010 Sheet 33 of 65
`
`US 2010/0144391 Al
`
`ye 2502
`
`yr 2501
`
`TOY
`iL Ie!
`Aa
`
`
`HWUULY
`I pe (Ol)
`| UTng.
`
`
` Conne(NoImpactonAperatureRatio) —————
`
` =?
`
`———___
`
`FIG. 32
`
`DELL EXHIBIT 1042 PAGE 34
`
`DELL EXHIBIT 1042 PAGE 34
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 34 of 65
`
`US 2010/014.4391 A1
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Ø?Ø??i??i???ZZZZZZZZZZZZZZZZZZZZZZZ N
`
`
`
`W
`
`DELL EXHIBIT 1042 PAGE 35
`
`

`

`
`
`- 2502
`K////V
`
`-2501
`- 2502
`V///(MC/C///V
`
`
`
`DELL EXHIBIT 1042 PAGE 36
`
`DELL EXHIBIT 1042 PAGE 36
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 36 of 65
`
`US 2010/014.4391 A1
`
`35O6
`
`
`
`3505
`
`r
`
`3508
`351O
`
`
`
`
`
`
`
`35O2
`
`
`
`35O1
`
`r
`
`r
`
`n
`
`FIG. 35
`
`DELL EXHIBIT 1042 PAGE 37
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 37 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 38
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 38 of 65
`
`US 2010/0144391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 39
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 39 of 65
`
`US 2010/0144391 A1
`
`
`
`
`
`Connection
`(yVcom)
`
`381 7a
`
`38.30a
`
`- - - • • • • •
`
`DELL EXHIBIT 1042 PAGE 40
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 40 of 65
`
`US 2010/014.4391 A1
`
`
`
`3907
`
`3903
`
`3905
`
`
`
`3901
`
`FIG. 39
`
`DELL EXHIBIT 1042 PAGE 41
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 41 of 65
`
`US 2010/014.4391 A1
`
`
`
`FIG. 40
`
`DELL EXHIBIT 1042 PAGE 42
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 42 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 43
`
`

`

`L/VVVYLVVVVY
`togblogDII
`Ne/
`
`
`
`N
`
`
`
`
`
`
`
`
`
`Holston III
`
`DELL EXHIBIT 1042 PAGE 44
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 44 of 65
`
`US 2010/014.4391 A1
`
`Ø,3€@Í2?
`
`
`
`No.sSOESOESNo.s (s.
`
`Sesºs(~~~~<<<<<<<<<<<<<<<`
`
`Ø
`
`1
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`DELL EXHIBIT 1042 PAGE 45
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 45 of 65
`
`US 2010/014.4391 A1
`
`Y
`-x
`Gate
`
`Drain
`
`Source
`
`
`
`Gate
`Electrodes
`
`a
`
`Gate
`
`Line
`
`VCOm
`------------------- 1/x
`Connection
`Point
`yVcom
`Connection-N i
`5
`Ye portion
`CSt LOWer
`Electrode
`
`FIG. 44
`
`FIG. 45
`
`DELL EXHIBIT 1042 PAGE 46
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 46 of 65
`
`US 2010/014.4391 A1
`
`
`
`Color
`1- Data Line
`Drain
`--52
`
`
`
`
`
`154
`
`1.5
`
`CSt Upper
`Ét,
`Color
`Data Line
`POrtion
`
`yVcom
`Portion
`
`Connection
`Points
`Connection
`Points
`yVcom
`POrtion
`
`FIG. 46
`
`FIG. 47
`
`DELL EXHIBIT 1042 PAGE 47
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 47 of 65
`
`US 2010/014.4391 A1
`
`K-52-0 K-52
`
`
`
`Reflector
`
`7
`
`--16
`16
`
`K-8 re
`Connection
`
`
`
`154
`
`FIG. 48
`
`FIG. 49
`
`DELL EXHIBIT 1042 PAGE 48
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 48 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 49
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 49 of 65
`
`US 2010/014.4391 A1
`
`
`
`
`
`
`
`
`
`u00||S-Á?Od duuêL MOT
`
`
`
`NA?JA Jee}}
`
`DELL EXHIBIT 1042 PAGE 50
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 50 of 65
`
`US 2010/014.4391 A1
`
`Cst = CPolyIM1 * CM1/M2 = 386 ff
`CPoly/M1
`CM1/M2
`
`K-52 -- H-52 --
`
`
`
`T56
`
`FIG. 53
`
`DELL EXHIBIT 1042 PAGE 51
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 51 of 65
`
`US 2010/014.4391 A1
`
`
`
`FIG. 54
`
`DELL EXHIBIT 1042 PAGE 52
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 52 of 65
`
`US 2010/0144391 A1
`
`- 5403
`
`- 5101
`
`- 5403
`
`HHT
`
`
`
`
`
`
`
`
`
`156
`
`UUUUUU) UU)
`Iloilo
`
`H. R.
`
`
`
`FIG. 55
`
`DELL EXHIBIT 1042 PAGE 53
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 53 of 65
`
`US 2010/014.4391 A1
`
`5605 -5604 A 1. 5600
`
`A
`
`t 5607
`
`
`
`
`
`
`
`
`
`R
`
`Ds 5614
`
`FIG. 56
`
`
`
`5701 COver
`NNN
`Adhesive 57O2
`5703 Polarizer
`High R570- 1 NNNNNNN 5705 CFGlass
`Shield
`ZZZZZZZZZZZZZZZZZ
`232222222
`TFT Glass 5706 1 NNNNNNN-5707 2nd Polarizer
`
`
`
`AZZZZZZYZZZZZYazza ZaaZaz ZZa
`
`
`
`
`
`5611
`Drive
`
`5612
`Drive
`
`DELL EXHIBIT 1042 PAGE 54
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 54 of 65
`
`US 2010/014.4391 A1
`
`
`
`
`
`R T G T BIT RGB RT --5803
`
`5805
`Metal
`Line
`
`5805
`Metal
`Line
`
`TO 1 OOC)/D
`
`Pixel ITO
`
`DELL EXHIBIT 1042 PAGE 55
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 55 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 56
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 56 of 65
`
`US 2010/014.4391 A1
`
`G00922222@222@º
`
`9009
`
`
`
`DELL EXHIBIT 1042 PAGE 57
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 57 of 65
`
`US 2010/014.4391 A1
`
`i
`
`N
`
`S /
`
`s
`l
`
`DELL EXHIBIT 1042 PAGE 58
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 58 of 65
`
`US 2010/014.4391 A1
`
`
`
`DELL EXHIBIT 1042 PAGE 59
`
`

`

`Patent Application Publication
`
`Jun. 10,2010 Sheet 59 of 65
`
`US 2010/0144391 Al
`
`0z69Poe
`
`PEEPLEL
`LLLLLLLLLLLLde
`
`Sereesote ACs
`Kor
`
`StOISSSSY
`CO Reetrr
`
`
`
`
`
`Ny
`Reed
`
`LLE9
`
`|PX!d
`
`60¢9\;O01
`
`L0€9
`
`GOES
`
`c0E9/////CWLNOOLN
`yOE9£0E9
`
`DELL EXHIBIT 1042 PAGE 60
`
`DELL EXHIBIT 1042 PAGE 60
`
`
`
`
`
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 60 of 65
`
`US 2010/014.4391 A1
`
`co
`g
`S
`CO
`
`- - - - -
`- -
`- -
`S . . . . . . . . .
`C.
`CNJ
`cN/5
`cy D
`O e
`
`-
`
`;
`
`
`
`N
`W
`AFTATF Ferry Territ
`----. N. . . .46
`
`... ---------------
`
`afs is
`
`1... . .
`
`s
`
`CD
`
`. . . N(4%
`
`YY 77
`
`YY
`
`
`
`is rise TTT
`
`8 ::::::::::::::::::::::::
`
`(11 kill ill
`first it is is is a
`...I.E.E...I.E.2%
`
`-
`
`E:::::::::::::::::::::::
`CN O
`cN/5
`cy D
`CC al-Esee
`
`
`
`is is
`
`up
`
`t
`
`s
`7:
`
`-
`
`i.
`
`DELL EXHIBIT 1042 PAGE 61
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 61 of 65
`
`US 2010/0144391 Al
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`ZY
`5
`(DEDa
`
`
`
`RRRRSSMAAN SELlc
`
`
`
`
`
`
`
`
`
`
`
`6512
`6322
`
`6512
`
`6915
`
`6318
`
`6311
`
`6319
`
`6509
`
`6322
`
`6307
`
`Pixel
`
`ITO
`
`Common Metal
`Common ; 6508
`_“
`CONS (atpanel
`J Fig.65
`
`CON2
`
`M2
`
`M1
`
`CON1/6310/6310/6317/6503
`
`6505
`
`6504
`
`6502
`
`6319
`
`Poly
`
`6501
`
`DELL EXHIBIT 1042 PAGE 62
`
`DELL EXHIBIT 1042 PAGE 62
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 62 of 65
`
`US 2010/014.4391 A1
`
`0099
`
`
`
`~Ø
`
`
`
`JUU, JUU ||JU
`
`% (~1299
`
`|uJ00NÁ
`
`DELL EXHIBIT 1042 PAGE 63
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 63 of 65
`
`US 2010/014.4391 A1
`
`
`
`CC
`Od
`
`S. -
`dis
`><
`Ch
`
`
`
`I S ZZZZZZZZZZZZZZZ
`
`SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
`ZZZZZZZZZZZZZZZZZZZZZ
`ZZZZZZ
`NYNNNN N
`ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
`N
`
`
`
`
`
`
`
`
`
`--- E EZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ SS
`-E NY
`
`EZZZZZZZZZZZ
`
`N
`4.
`SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
`CHZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ SS
`E-ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
`
`DELL EXHIBIT 1042 PAGE 64
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 64 of 65
`
`US 2010/014.4391 A1
`
`COmputing
`System
`6800 N.
`
`
`
`Peripherals
`6804
`
`
`
`
`
`Panel
`PrOCeSSO?
`633
`
`Panel Subsystem
`
`Sense
`Channels
`6808
`
`Channel
`SCan
`LOgiC
`6810
`
`COntrol
`Signals
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`HOSt
`PrOCeSSOr
`6828
`
`Program
`Storage
`6832
`
`Stimulation
`Signals
`
`DELL EXHIBIT 1042 PAGE 65
`
`

`

`Patent Application Publication
`
`Jun. 10, 2010 Sheet 65 of 65
`
`US 2010/014.4391 A1
`
`MObie
`TelephOne
`6936
`
`Media
`Player
`6940
`
`PerSOna
`COmputer
`6944
`
`
`
`
`
`TOUCh
`SenSOr
`Pane
`6924
`
`Trackpad
`6925
`
`DELL EXHIBIT 1042 PAGE 66
`
`

`

`US 2010/01 44391 A1
`
`Jun. 10, 2010
`
`INTEGRATED TOUCH PANEL FOR ATFT
`DISPLAY
`
`FIELD OF THE INVENTION
`0001. This relates generally to multi-touch sensing dis
`plays, and more specifically to combining multi-touch sens
`ing functionality and LCD display functionality.
`
`BACKGROUND OF THE INVENTION
`0002 Many types of input devices are presently available
`for performing operations in a computing system, Such as
`buttons or keys, mice, trackballs, joysticks, touch sensor pan
`els, touch screens and the like. Touch screens, in particular,
`are becoming increasingly popular because of their ease and
`Versatility of operation as well as their declining price. Touch
`screens can include a touch sensor panel, which can be a clear
`panel with a touch-sensitive Surface, and a display device
`Such as a liquid crystal display (LCD) that can be positioned
`partially or fully behind the panel so that the touch-sensitive
`surface can cover at least a portion of the viewable area of the
`display device. Touch screens can allow a user to perform
`various functions by touching the touch sensor panel using a
`finger, stylus or other object at a location dictated by a user
`interface (UI) being displayed by the display device. In gen
`eral, touch screens can recognize a touch event and the posi
`tion of the touch event on the touch sensor panel, and the
`computing system can then interpret the touch event in accor
`dance with the display appearing at the time of the touch
`event, and thereafter can perform one or more actions based
`on the touch event.
`0003 Multi-touch screens or multi-touch panels are a fur
`ther development of touchscreens. These allow for the device
`to sense multiple touch events at a time. More specifically, a
`multi-touch panel can allow a device to sense the outlines of
`all fingers or other objects that are touching the panel at a
`given time. Thus, while a single touch panel may only sense
`a single location that is being touched, a multi-touch panel
`can provided an entire “touch graphic’ which indicates the
`status (touched or not touched) of a plurality of touch pixels at
`the panel.
`0004 An exemplary multi-touch enabled display is dis
`closed by U.S. patent application Ser. No. 1 1/649.998 filed on
`Jan. 3, 2007, entitled “PROXIMITY AND MULTI-TOUCH
`SENSOR DETECTION AND DEMODULATION, Pub.
`No. 2008/0158172 which is hereby incorporated by reference
`herein in its entirety for all purposes. Early multi-touch dis
`plays required manufacturing of a multi-touch sensing panel
`and a separate display panel. The two panels can later be
`laminated together to form a multi-touch display. Later gen
`erations of the technology provided for combining the display
`and multi-touch functionality in order to reduce power con
`Sumption, make the multi-touch display thinner, reduce costs
`of manufacturing, improve brightness, etc. Examples of Such
`integrated multi-touch displays are disclosed by U.S. appli
`cation Ser. No. 1 1/818,422 filed on Jun. 13, 2007 and entitled
`“INTEGRATED IN-PLANE SWITCHING”, and U.S. appli
`cation Ser. No. 12/240,964, filed on Jul. 3, 2008 and entitled
`DISPLAY WITH IDUAL-FUNCTION CAPACITIVE ELE
`MENTS’ both of which are incorporate by reference herein
`in their entireties for all purposes.
`0005. However, some of the schemes for integration can
`require placing some additional non-transparent elements in
`the thin film transistor (TFT) layer of the display. Such addi
`
`tional non-transparent elements can reduce the aperture of the
`display (the aperture being the portion of the display that
`actually transmits light). Reduction of the aperture can cause
`reduction of the brightness of the display as well as a reduc
`tion in the viewable angle of the display.
`
`SUMMARY OF THE INVENTION
`
`0006. This relates to displays including pixels with dual
`function capacitive elements. Specifically, these dual-func
`tion capacitive elements form part of the display system that
`generates an image on the display, and also form part of a
`touch sensing system that senses touch events on or near the
`display. The capacitive elements can be, for example, capaci
`tors in pixels of an LCD display that are configured to operate
`individually, each as a pixel storage capacitor, or electrode, of
`a pixel in the display system, and are also configured to
`operate collectively as elements of the touch sensing system.
`In this way, for example, a display with integrated touch
`sensing capability may be manufactured using fewer parts
`and/or processing steps, and the display itself may be thinner
`and brighter.
`0007 Furthermore, this relates to displays for which the
`use of dual function capacitive elements does not result in any
`decreases of the aperture of the display. Thus, touch sensitive
`displays that have aperture ratios that are no worse than simi
`lar non-touch sensing displays can be manufactured. More
`specifically, this relates to placing touch sensing opaque ele
`ments so as to ensure that they are substantially overlapped by
`display related opaque elements, thus ensuring that the addi
`tion of the touch sensing elements does not substantially
`reduce the aperture ratio. The touch sensing display elements
`can be, for example, common lines that connect various
`capacitive elements that are configured to operate collectively
`as an element of the touch sensing system.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`0008 FIG. 1 illustrates a partial circuit diagram of an
`example LCD display including a plurality of LCD pixels
`according to embodiments of the present invention.
`0009 FIGS. 2A and 2B illustrate example regions formed
`by breaks in Vertical and horizontal common Voltage lines
`according to embodiments of the invention.
`0010 FIG. 3 illustrates partial circuit diagrams of a pixel
`301 of a drive region and a pixel 303 of an example sense
`region.
`FIG. 4A illustrates example signals applied to the
`0011
`pixels of a drive region during an LCD phase and during a
`touch phase according to embodiments of the invention.
`0012 FIG. 4B illustrates example signals applied to the
`pixels of a sense region during an LCD phase and during a
`touch phase according to embodiments of the invention.
`0013 FIG. 5A illustrates details of an example operation
`of a storage capacitor of a drive region during a touch phase
`according to embodiments of the invention. FIG. 5B illus
`trates details of an example operation of a storage capacitor of
`a sense region during a touch phase according to embodi
`ments of the invention.
`0014 FIG. 6A illustrates a partial view of an example
`touch screen having regions of pixels with dual-function
`capacitive elements that operate as LCD elements and as
`touch sensors according to embodiments of the invention.
`
`DELL EXHIBIT 1042 PAGE 67
`
`

`

`US 2010/01 44391 A1
`
`Jun. 10, 2010
`
`0015 FIG. 6B illustrates a partial view of an example
`touch screen including metal traces running in the border
`areas of the touch screen according to embodiments of the
`invention.
`0016 FIG. 6C illustrates an example connection of col
`umns and row patches to the metal traces in the border area of
`the touch screen according to embodiments of the invention.
`0017 FIG. 7 illustrates a top view of an example column
`and adjacent row patches according to embodiments of the
`invention.
`0018 FIG. 8A is an example plot of an x-coordinate of a
`finger touch versus mutual capacitance seen at a touch pixel
`for a two adjacent touch pixels in a single row having wide
`spacings according to embodiments of the invention.
`0019 FIG. 8B is an example plot of an x-coordinate of a
`finger touch versus mutual capacitance seen at a touch pixel
`for two adjacent touch pixels in a single row having wide
`spacings where spatial interpolation has been provided
`according to embodiments of the invention.
`0020 FIG. 8C illustrates a top view of an example column
`and adjacent row patch pattern useful for larger touch pixel
`spacings according to embodiments of the invention.
`0021
`FIG. 9A illustrates an example touchscreen includ
`ing sense (or drive) regions formed as columns and rows of
`polygonal regions (bricks) according to embodiments of the
`invention.
`0022 FIG.9B illustrates a close-up view of a portion of
`the example touch screen of FIG.9A.
`0023 FIG. 9C illustrates a portion of example touch
`screen of FIG. 9A including bricks associated with columns
`C0 and C1 and connectingyVcom lines connecting the bricks
`to bus lines according to embodiments of the invention.
`0024 FIG. 10 illustrates a portion of example zig-zag
`double interpolated touch screen that can further reduce the
`Stray capacitance between the connecting yV.com lines and
`the sense regions according to embodiments of the invention.
`0025 FIG. 11 illustrates a patterning of a first metal layer
`(M1) of pixels in an example electrically controlled birefrin
`gence (ECB) LCD display using amorphous silicon (a-Si)
`according to embodiments of the invention.
`0026 FIG. 12 illustrates a patterning step in which island
`patterns of a-Si are formed in the example ECB LCD display
`using a-Si according to embodiments of the invention.
`0027 FIG. 13 illustrates connections formed in a pixel in
`the example ECB LCD display using a-Si according to
`embodiments of the invention.
`0028 FIG. 14 illustrates patterning of a second metal layer
`(M2) of pixels in the example ECB LCD display using a-Si
`according to embodiments of the invention.
`0029 FIG. 15 illustrates planarization (PLN) contact lay
`ers in the example ECB LCD display using a-Si according to
`embodiments of the invention.
`0030 FIG. 16 illustrates reflector (REF) layers in the
`example ECB LCD display using a-Si according to embodi
`ments of the invention.
`0031 FIG. 17 illustrates passivation (PASS) contacts in
`the example ECB LCD display using a-Si according to
`embodiments of the invention.
`0032 FIG. 18 illustrates semi-transparent conductive
`material (such as ITO1)) layers that form pixel electrodes in
`the example ECB LCD display using a-Si according to
`embodiments of the invention.
`
`0033 FIG. 19 illustrates aplan view of completed pixels in
`the example ECB LCD display using a-Si according to
`embodiments of the invention.
`0034 FIGS. 20A-D illustrate side views of completed pix
`els in the example ECB LCD display using a-Siaccording to
`embodiments of the invention.
`0035 FIGS. 21 and 22 illustrate a comparative analysis of
`the storage capacitances of pixels in the example ECB LCD
`display usinga-Siaccording to embodiments of the invention.
`0036 FIG. 23 illustrates aperture ratio estimations for pix
`els in the example ECB LCD display using a-Siaccording to
`embodiments of the invention.
`0037 FIG. 24 illustrates an example modification in the
`example ECB LCD display using a-Si according to embodi
`ments of the invention.
`0038 FIG. 25 illustrates the patterning of a layer of poly
`Si of pixels in an example in-plane switching (IPS) LCD
`display using low temperature polycrystalline silicon (LTPS)
`according to embodiments of the invention.
`0039 FIG. 26 illustrates the patterning of a first metal
`layer (M1) of pixels in the example IPS LCD display using
`LTPS according to embodiments of the invention.
`0040 FIG. 27 illustrates vias formed in pixels in the
`example IPS LCD display using LTPS according to embodi
`ments of the invention.
`0041
`FIG. 28 illustrates the patterning of a second metal
`layer (M2) of pixels in the example IPS LCD display using
`LTPS according to embodiments of the invention.
`0042 FIG. 29 illustrates a first layer of transparent con
`ductive material, such as ITO, formed on pixels in the
`example IPS LCD display using LTPS according to embodi
`ments of the invention.
`0043 FIG. 30 illustrates a connection in the example IPS
`LCD display using LTPS according to embodiments of the
`invention.
`0044 FIG. 31 illustrates a second layer of transparent
`conductor, such as ITO, formed on pixel in the example IPS
`LCD display using LTPS according to embodiments of the
`invention.
`0045 FIG.32 illustrates a plan view of completed pixels in
`the example IPS LCD display using LTPS according to
`embodiments of the invention.
`0046 FIG. 33 illustrates a side view of a pixel in the
`example IPS LCD display using LTPS according to embodi
`ments of the invention.
`0047 FIG. 34 illustrates the storage capacitances of two
`pixels in the example IPS LCD display using LTPS according
`to embodiments of the invention.
`0048 FIG. 35 illustrates the patterning of a layer of poly
`Si of pixels in an example IPS LCD display using LTPS in
`which a yV.com line is formed in an M2 layer according to
`embodiments of the invention.
`0049 FIG. 36 illustrates the patterning of a first metal
`layer (M1) of pixels in the example IPS LCD display using
`LTPS in which a yV.com line is formed in an M2 layer accord
`ing to embodiments of the invention.
`0050 FIG. 37 illustrates vias formed in pixels in the
`example IPS LCD display using LTPS in whichayV.com line
`is formed in an M2 layer according to embodiments of the
`invention.
`0051 FIG.38 illustrates patterning of a second metal layer
`(M2) of pixels in the example IPS LCD display using LTPS in
`which a yV.com line is formed in an M2 layer according to
`embodiments of the invention.
`
`DELL EXHIBIT 1042 PAGE 68
`
`

`

`US 2010/01 44391 A1
`
`Jun. 10, 2010
`
`0052 FIG. 39 illustrates a first layer of transparent con
`ductive material, such as ITO, formed on pixels in the
`example IPS LCD display using LTPS in whichayV.com line
`is formed in an M2 layer according to embodiments of the
`invention.
`0053 FIG. 40 illustrates connections in the example IPS
`LCD display using LTPS in which a yV.com line is formed in
`an M2 layer according to embodiments of the invention.
`0054 FIG. 41 illustrates a second layer of transparent
`conductor, such as ITO, formed on pixels in the example IPS
`LCD display using LTPS in which a yV.com line is formed in
`an M2 layer according to embodiments of the invention.
`0055 FIG.42 illustrates a plan view of completed pixels in
`the example IPS LCD display using LTPS in which a yV.com
`line is formed in an M2 layer according to embodiments of the
`invention.
`0056 FIG. 43 illustrates a side view of a pixel in the
`example IPS LCD display using LTPS in whichayV.com line
`is formed in an M2 layer according to embodiments of the
`invention.
`0057 FIG. 44 illustrates a semiconductor layer of poly-Si
`in an example ECB LCD display using LTPS according to
`embodiments of the invention.
`0058 FIG. 45 illustrates a first layer of metal (M1) in the
`example ECB LCD display using LTPS according to embodi
`ments of the invention.
`0059 FIG. 46 illustrates connections in the example ECB
`LCD display using LTPS according to embodiments of the
`invention.
`0060 FIG. 47 illustrates a second metal layer (M2) in the
`example ECB LCD display using LTPS according to embodi
`ments of the invention.
`0061
`FIG. 48 illustrates a connection layer in the example
`ECB LCD display using LTPS according to embodiments of
`the invention.
`0062 FIG. 49 illustrates a reflector layer in the example
`ECB LCD display using LTPS according to embodiments of
`the invention.
`0063 FIG.50 illustrates an ITO layer in the example ECB
`LCD display using LTPS according to embodiments of the
`invention.
`0064 FIG. 51 illustrates a completed pixel in the example
`ECB LCD display using LTPS according to embodiments of
`the invention.
`0065 FIG. 52 illustrates a side view of a pixel in the
`example ECB LCD display using LTPS according to embodi
`ments of the invention.
`0066 FIG. 53 illustrates a calculation of the storage
`capacitance of a pixel in the example ECB LCD display using
`LTPS according to embodiments of the invention.
`0067 FIG. 54 illustrates an aperture ratio estimation of
`pixels in the example ECB LCD display using LTPS accord
`ing to embodiments of the invention.
`0068 FIG. 55 illustrates an example modification in the
`example ECB LCD display using LTPS according to embodi
`ments of the invention.
`0069 FIG. 56 illustrates a portion of a touch screen that
`includes an example grounded separator region according to
`embodiments of the invention.
`0070 FIG.57 is a side view of the example touchscreen of
`FIG. 56, which illustrates an example high R shield according
`to embodiments of the invention.
`(0071
`FIG. 58 illustrates a side view of a portion of an
`example touch screen including black mask lines of a black
`
`mask and metal lines un