“-2;
`
`TOUCH TECHNOLOGY ISSUE
`Information
`
`SI *
`
`Official Monthly Publitntion ofthe Sodety [or Information Display . www.informaliondisplcynrg
`
`Vol. 26, No. 3
`
`The Best of Tunes
`for Touch
`
`
`
`WITH A GREAf
`”TOUCH EXPE
`
`Patent Holder Exhi
`IPR201 3.000557
`
`20
`
`_.
`
`'
`TPK'2013
`mnh't'eikiix. TPKToLichLSOl' 'uq
`[PR2013-00568
`
`IPR201 34100573
`
`

`

`1R70UCH mulii—touch screen enriches user intezfaee experience};
`supporting two touch points, enabling gesture commands. such'ais -.
`zoom,
`rotate and drag. Fuliy compilant with Windows 7’,
`the
`
`.-
`
`IRTOUCH platform seamiessiy supports muiti-touch applications on
`Windows 7.
`
`0 Best Optical Performance
`
`in High Reliability
`
`0 Enhanced Suniight Perfermanoe
`
`o Muiti-Touch
`
`
`
`Sizes Availabie: 6.4"-100"
`
`See US at Dispiay Week 201-0 Booth 1311
`www.irtouch.com www.irtouchusa.com _
`
`
`
`

`

`.t-c-imr'd 1hr
`‘iIic-r driz’idrfi' ii; i'x'iHL'
`(‘0‘."ER:
`
`.\':'('P|£’.\'
`.‘nrn'ii imx mmc in ii
`-
`.TIH'PIIIIJH} :‘f'riispr'm-
`dc’i'rinpim-m impairing .i c-m iim'igu and H. "
`
`
`
`
`
`ilifrfiflr'r '. and ins-N's.
`s'irig‘ii' bring ”1!ch mm‘
`im’r- H‘ir' (ii K‘flifil' its-(Iii.
`
`
`
`04-921.
`
`(lever UBSEQ" cy Acapdta Studios Inc
`spanner mamas 13 Kewn Giileaoue To: ms
`guanizational suggestions.
`
`Next Month in
`
`In formalin I! Disp My
`
`Digital Signage
`' Iminur Digila! Signage
`' Outdoor LED Display
`- Digital Signage Mtirkctpiacc
`Pius
`
`' SID 2009 Honors and inwards:
`
`' Display chk I'Tii'h'l Lmks
`' Symposium Preview
`' ExhibiiPrex-‘iew
`
`'
`
`.irriii‘imi (Jfriie SH) Mal}! Commits
`
`|I||_ \ul‘l\\'fi_'l'
`I §Ill-_‘.-._‘
`
`]‘l{[.\ H?
`
`
`
`' Information
`DISPLAY
`
`VOL. 26, NO. 3
`
`
`
`Ediml‘iaI
`in}? Liniii‘ir’m Hr:i'i;'riii {or Trlua'i:
`Smpijrn P 4Ht'r’md
`
`Industry News
`
`Guest Ediiarial
`Tint 312' w 0.."- Timm-
`
`:\ nniwrsary 01' 2! Prediction
`
`.II’J’JflY i.Jr:n('i.m
`
`
`
`Paui Una}:
`
`16
`
`22
`
`
`
`
`
`
`
`Frmrtiirw Ethnology: LCD ln-(Icil Teach
`imagine .‘R‘m': iiiiii’ ID fraud: Jim i'm_'fi:<r= gram ifiipiqv 11 iiii _v.rn.ri‘_}iii_2(‘:' ur a min: and MW iim
`im'mirw min-am rpm-i3 iim‘miiii- fdi’iiiifird dam! :r- .ri'n- mm: pitch;
`imagine sins irailgvitiiiug ii'iiir
`im i'm-c’r' MINT rJr' glen”? (“NH-NJ
`in rm‘.
`ro'fizi’i
`iJiJA'Ii'ui'IirFJ'J i?
`
`
`rum I’fI-Ifi'li'l' dfifiphffil umi “TH? mini-
`mui r'Fiuuw' mud: .rirz' disiiirir Wm: ’s iiu' flniliiiif' raj in—r-m’i‘ Inm'ii. Tin- pnrhimr i.i rim! .‘iii‘ prrmrixv
`i’r'mdiih I'ri!.'\'F.-r_\' mm of n‘ur'ir Tim atriin'r «mime \' iii-a! prmuiiw mm’ in : m H'H.’ .s'mmx' iii :ii'mii.
`('ierrfi' ivl'iiikcr (ind Mark Fiim
`
`
`I‘rQiectcd-(Tapacitivu Touch 'I'echnuiogy
`i-‘rmtfliue Technniagy:
`
`I'i'rgur i‘w’ "izilrir'ifii‘v mini: haw grown s'ur'r'mz’iy rapidiy firm i}b.\':".’lif.i.".' in 2004‘) In the HIIJFFI?£.'!'-i‘\\'f‘
`
`
`{rum-i.- liq-ii
`“'33). H.‘ BUM), Tim anic'ii' mmumiw a” ujpr’i'is
`'prnjfl‘rrefi-rflimr'ifii‘é’ IHIN'F'? Ifii'irh‘ni'n:'_1'.
`
`(Erin-m:- in : {mm-i: r'nriii'rjiim: and iimduir (ictuiix.
`risiri' Harri-n and Running! (Jaimie
`Display Marks-[pincer Thi' Smu- {uf the Touch-Semen Market in 2019
`
`'ir'uiz'i
`‘i'flf'iis :m‘ is: M‘idm‘pn-ud mr. dw irs H'ir- mmiiia'i’ IiiIi'i'Ir’II'fs‘”jfl'r’liflflflll'. h'l‘iir'i'i’ ('rU'i .mw :imr
`
`and inr'r'r-'ci.\'c.' _m-.-idu:'rii'i.h.'. Hii’iiiiu ['OJ‘JJPHJK'HJ' pr”
`\' ifm‘t' u‘iir:
`\'_."mi'r{'(i u‘diipfirun 1141!;
`:.r:!i.\'H.'!H’i'
`
`pmdm-Is Jim-Nusinpi'r iii-iii;- iii-.i'igiird {H'HHNJ‘ rrliar‘i: .kr'i't'f’J'H'. Tr'ifr'n'lJ-ft'f't’f'n dwl'ir'i’x uni riixri li'idw'hr
`pran- i-ii'cdcu‘ {'rJrJi (miffun.
`
`
`Enabling Tcr'i'mningy: Touch Screens and Tom-I1 Surfaces are Enriched h)‘ Haptic Farm:-
`l'ccd hack
`TUt'IHE" ii'ésdbm'k um f‘IlflhiI’ mmr {Lifti‘rii-r mi: .rgf rum-i: .i‘irn'e'm'. pam':.'.lii.r_iri\' in c!iif(3i'1i'r’lii‘1-'i_’ uppii-
`i-uir'unx: u‘iirrr- driver disrmr'limi is u prohimn.
`'i'iii‘ mmiiwr w)"m:irrim'.-aglie.§ “ch In prudirr-z iuiprir
`.rfii-rn. i-uiirmiii'n in i!'r!'1"(’i'h'£'. pi'in'rdiuls: Hm”) npfiririv andrif'ljilrlri'mfifir'xfiJi' sink“: iii-iiguri-i.
`Hrm-r= Hniiiifl"
`
`Joanna! ”filter SH) Aprii (“laments
`Enabiing Ti’r'hmilogl': Beneath the Surface
`
`
`inw- raf-
`.H'lirji.‘ r g'rmqlmiiig _-'_\ (Lin-m img'gmring Jinn piii'j'ir'iri n'm'iu’ mid {iig' i'ir'mai Wiii‘iri' ”H'HHISJJP fiii'
`
`1 i.fi'i:)15-i}a.\':'d iuiii'ii. Wiir'ic' Mil-171 wifi‘v Shijflr'r prndiir'i‘ ?.\' 1h:- hi'i‘f-l'nmirn inwirinwriaii:”I r._|-"\'m_'iu.":'
`{ mnpriimg.
`ii isii'u‘jrriin' Iirr‘ Univ our. Expanding rmn'rizrii‘)‘ i2’.‘.r(’ci?’i'ii rm Min-I: .r'r-irrirzmxi' in my“
`
`
`m1 ”.3 1-‘i' W .
`'
`{NW} inn-i: m ii_."f'imdu'fi(3fi. wiiic'h iii mm wr'i! iwip J'J'rf’l'(' cur-Fm r- a-miipwiinq rim-uni
`{iiii :‘imm'ic‘ri'iz 'i:.i.'?iri.li.
`
`
`'(‘i' and Mark Fihn
`(imifi' 'lriEi
`Making Displays “brk fur Hm: Taking Tum-11 m Vcw Frontiers: Why It Makes Sumo and
`How In Make It Happen
`
`in IH?" ripirr-ai'iug in £‘t={‘i'\'.’ii'ir.‘_a'fridfli :‘rmyimm‘ zic’i'irxz’i' in iiirim‘irmi t'q’l'u‘ilflr‘l'lt’Flf. um‘
`'iirir i1 .0in
`
`Fin-(mm fund: 3:: "ii: ,‘%;.-hi.rii.‘." imi bra. 1m- i: gum Mm n H'nh' ham-r fur-m (If I'IIFI'PFFrJii-ric’E'ic i immut-
`iirm. Tiii! ari‘ii'ie mmninm‘ iii! ridwmaqm Hf grfinrr-ha-i‘i-d rum-ii nm-r’fur-c-X :md iiic- in- mm: H!
`braiding r.'J dr=1-ir‘r‘ ii'irii a: gnu! Imir'i: c’.\'lnyriwi('r.
`Mari: Hm'mi‘iih
`
`40
`
`42
`
`46
`43
`48
`
`Display Week 2016 First Ltlnkhi Green Technology
`Dim (lirkire’r
`
`Display Vic-ck 2010 First LOOkH: Tuuch 'I'tchnulogy
`.irrnm' Unimfl-u.‘
`
`SID News: Main Dispiay JfKIiJ
`Officin! 51112010 Housing Request Form
`Sustaining Members
`Index in Advertise-rs
`
`For Industry News. New Precincts! Current and Furlhcnming A rticius.
`sec fly“.IlllftIt'll]'sziiilldispiiflkflrg
`
`
`iiiinrirririrrm Uiili‘igir \
`. if}
`
`i'
`
`

`

`
`
`Information
`DISPLAY
`
`
`
`The Limitless Horizon for Touch
`
`by Stephen P. Atwood
`
`If you are just opening this March issue, i hope you notice
`that it is thicker than the previous few. The reason is fairly
`simple. Our Guest Editor Geoff Walker brought to us an
`outmanding array of submissions and we just could not
`bring ourselves to cut anything out. Touch technology has
`been around for as long as l have been in the display busi-
`ness.
`In fact. I‘ve worked full time at three different touch
`
`I can even remember
`businesses and consulted with several more during my career.
`some of the first demonstrations of various acoustic and capacitive touch technologies
`and I have had the privilege of meeting many of those inventors.
`But I doubt any of those early inventors could have envisioned the massive scale of
`adoption and utilization that has taken place around mobile devices. Seemingly.
`almost overnight everyone is using touch with ease to navigate complex interactions
`with their iPhones. PDAs. and other devices. Early complaints about accuracy.
`response. uncertainty. and image quality seem to have evaporated like snow on a
`warm day. Of course. we know those issues have not really evaporated; rather. a
`significant mother of very talented engineers have been hard at work innovating for
`the past several years and. with some assistance from the semiconductor and materials
`industry. have circumvented these problems enough to please consumers. One of the
`most frequent complaints about early PDAs was the accuracy of their resistive screens.
`If you had an early PDA device with stylus input. you no doubt struggled at times with
`the gesture-recognition software and became frustrated by the on-screen keypad when
`the stylus picked the wrong letters or numbers. Similarly. using your finger to select
`things was like using a shotgun to hunt ants. Sure you could get the target. but the
`collateral impact was substantial. And. even if none ofthis deterred you, then the
`eventual degradation of the screen due to stylus-induced wear was disappointing.
`Proiected—capacitivc screens. with their maLrix of absolutely addressed conductors
`and rigid glass surfaces. have really changed the experience. Now there is little
`calibration error or drill. the contact with your finger can be very light. which allows
`for more precise selections. and I have yet to see a pro—cap screen worn out by normal
`use. That said. we are far from the ideal solution because the typical pro-cap scrccn
`does not support stylus use and is more expensive than a similar resistive screen.
`Efforts to remedy this situation are revealed in the Frontline r{technology feature
`“Projected-Capacitive Touch Technology" written by Gary Barrett and Ryomei
`Omote. Barrett. incidentally. is one of those fundamental inventors of touch technol—
`ogy I referred to in the heginning of this editorial.
`If you talk to him. he can expound
`on the many technical and business challenges the industry faced in its infancy.
`It
`took a lot of hard work and creativity to get to where we are today. But don‘t let me
`leave you with the impression that resistive screens are outmoded either. Engineers
`have made great strides with resistive technology. employing more durable materials,
`better optical coatings. and even high—resolution matrix addressing to produce
`accuracy similar to that of pro-cap screens.
`So. does this mean the quest is basically over? Are we at the shores of the touch—
`technology journey and ready to unload the boats for good?’ Have we discovered
`everything that needs to be discm-ered'? Not a chance!
`If you have read any of our
`previous issues on this topic you know the theme: Touch keeps getting better. but
`there is no one technology that does everything or meets the needs of all applications.
`
`2
`
`Information Display .tWt’J
`
`fcontinued on page 35 l
`
`i
`
`' Executive Editor: Stephen P. Atwood
`oEWBOO—Q'J'QQ. satwood©azonixcom
`Editor-in-Chief: Jay Morreale
`2 l 3460- 9700. jrnort'ealc to.“ pcnt4l 3 .com
`Managing Editor: Jenny [)onelan
`603/924~9628. _jdonelan@pcrn4l Learn
`Administrative Assistant: Ralph Nadell
`Sales Manager: Danielle Rocco
`Sales Director: Michele Klein
`
`Editorial Advisory Board
`
`Stephen P. Atwood. Chair
`Croneidzonix (Tum. U.S.A.
`Bruce Gnude
`
`Li'niversitt' ofTexas at Dallas. USA.
`Allan Kmetz
`Consultant. U. SA.
`
`Larry Welter
`Consultant. USA.
`
`Guest Editors
`
`
`
`Solid-State Lighting
`Jefi‘r'ey Spindfer. Eastman Kodak Co.
`Flexible and Ultra—Lotv—Power Displays
`Rob Zehuer. E ink Corp.
`
`
`
`Brian T. Srrhonwrtyidt. Um'wrritr of
`Washington
`
`{)LED Technology
`Mike Hock. L-"itircrml Dispiqr Corp.
`
`LCD Technology
`Shin—Titre: Wu. L-"nit-‘erst'ti' of Central
`Florida
`
`Green Manufacturing
`Greg Gibson. .r't-‘exTECH FdS
`
`Touch Technology
`Geoff Walker. NexiWiudotr
`
`columns. and feature articles do not neces—
`
`Display. The opinions expressed in editorials.
`
`sarily reflect the opinions or" the Executive
`Editor or Publisher of information Display
`Magazine. nor do they necessarily reflect
`the position of the Society for Information
`
`

`

`
`
`W7§
`
`
`
`'I'yco Electronics” E10 'i‘ouch-
`
`Systems Rolls Out lntelliTouch
`
`Plus Technology
`
`by Jenny Damian
`
`littt‘lliTouch Plus technology; l'r-zatn lilo Touch-
`Sysicms. a pioneering touch :cchnolngy com—
`pany founded in ill—fl , is. according to Elie.
`this first surl'acc-attnustir-\\-'a\-'c {SAW}. touch
`tuclinnlogr with multi-tnucli cupaliilitics. and
`also the first SAW tucltttolog}; to rat-cite the
`erldtm's 7 logo.
`ltiiiflli'l‘t‘nttch I’Ius rttttords
`tum siiiiuitzincous tout'h locations unywhers.
`on the screen with Lhrcc arcs of touch. The
`
`technology is design-3.6 to sift-‘3' OL’Ms. appli—
`cation (lc‘flclopcrs. and other customers tools
`to leverage the Windows '3 touch lil'llCI'lilL‘L’.
`
`Intclli'l‘ouch Plus will he ct'immcrciall)’
`availahie early this year. in the form or“ s:
`componcnls in sizes rain ging from i? lhrough
`32 in. for consumer touch monitors us wcll us
`
`tacit
`
`all—in—onc touch computers twining Windows ?.
`
`in addition. it 23—in. open—iratmt‘ Etiut'i'z :titinitoi'
`will l'lL‘ muiltthlr hunt in 20 Ill.
`
`A mm l-{lti 'I'tiuultfiystctns touch tirix-ur. 212st!
`Conipatililc u-itlt \‘l'itit‘ltiws 7’. wui he tzx'uilahlc
`this }L'.Jl' for current lilo tttonitot's and \\'ill
`ol'l'ci- the. addition of' digitiycd gestures, to basic
`sizigle‘tottch i'unctiottality. No new hardware
`is headed. This pi'iiprit’taty tat-linolo-iiy will
`ambit real—time singltt—t'ingct gt‘s‘ltm: TLTCI‘tffil'll-
`: Tim on till {-11.1 :0thle monitors. .: ;:tip;thili1} the.
`t‘t‘!‘l‘|§)1[tl}u‘:~il}'> can be easily integrated into all
`lilo touch monitors for C.t'3]‘.-'l§']liill\ili£_\' with the
`Windows 7 ant-suiting s) stem. I
`
`
`
`News Briefs
`
`FlalFrog Lahnralories AB. a developer and
`mmiuluctutc: ofuptigs—tiztsetl tnulli—itJuCh Lita
`untl suhxystttms. rtuemiy announced trial ll
`hats i'ziisetl€12.5 million [approximately
`U888 million-i it:- now equity from interna-
`tional strategic and institutional investors.
`i’rr.it:ctttla from this new round of funding will
`
`he used to t‘tinnnti'uitiliz-e FltttFrog 's praiidttct
`lane of large. iaigh—im‘fisi'tnunuc rnulti—louch
`iii~gliiss displays. Tycu Electronics! [ALL at
`Sn-‘itxcrlttnd-huscd tit-signer. intinttt'actm'cr.
`unti markutcr of cnginccrcd clecrtonic compo—
`nents and undersea tclccommunication sys'
`tcnis. has acquired Sensitive Object. SA. at
`Fi'attcc—bttscti dcvclopct' of [ouch—input lech—
`ntileigy. for iipprmiinately $62 million. Elo
`Toin'liSystenis [mentioned in article earlier}
`is ulstz- a Tyco business. Amazonxom has
`rcpoitcdlg- hon g ht 'l‘ouc‘nco. a small stun—rip
`L'ontpéin} that makes flexiblc- touch screens.
`According to a February 3. 2010. atrticlu in thc
`N‘mi' Yuri; Times. "Attittmn Stlid to Buy Touch
`Stun-tip ."\[l'lLl?{.JIl.L[\i¥l will inurgc Touchcu
`with the Kindle. hardware. division. Lab lilo.
`in Culil'orniu. Touchco makes flexible, see—
`
`through. and prcasutc—scnsitivt touch scream.
`The L'Ui]'lpi1l]_\5 touch—screen Let-linology can
`TCptll‘l:Lll_\-' niuki: u distinclitin between the
`singular pl'essures applied by Cillk‘l'
`ti finger
`or stylus. This ncws was unconfirmed h}-
`Atiinzott at press time. I
`
`Truc- Tour
`
`l-‘aimeeiection
`
`‘1] 111 EDIE?
`
`ui pm -' nt
`
`t-mtmlnterqational
`
`' in a portable, plug and
`any appluation.
`
`r Highly Accm'at'e
`F Si; glue or Two-Finger Touch
`n Contaminants
`*l
`'ahle I
`pit' On '
`1* Finger, Glm’ed Finger 0r _'
`
`.
`
`Books
`
`* Tablet Computers
`Gaming Consol
`T
`
`ELI." m
`
`Sm- {is at Display \\ uni; lllttl in Seattle
`
`

`

`
`
`
`
`Symposium,
`
`
`Seminar, and
`Exhibition
`
`
`20 10 SID
`
`International
`
`Display Week
`20 1 0
`
`Seattle,
`Washington
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`The Best of Times
`
`by Geoff Walker
`
`
`
`It‘s hard to imagine how the touch industry could he any
`more exciting than it is right now. Consider the Following.
`especially in light of the current worldwide economic crisis:
`- Consumer—device manufacturers are adopting touch at a
`very rapid rate.
`* New touch technologies are being created.
`0 Touch is growing 3X {units} to lth {revenue} faster than the display industry.
`- Busting touch technologies are being refitted and enhanced.
`- Projected—capacitive—louch revenue has rocketed from $20 million to $6M! million
`in 3 years.
`- The pace and scope of university research on touch has accelerated.
`- Display Wee ' has dedicated one of the tour half-day Sunday Short Courses to
`touch.
`
`' SID has designated touch as a special area of focus and created symposium sessions
`exclusively l‘or touch.
`- Touch stanups are being funded or acquired when they rarely would have been in
`the past tFlaLFrog. Touehco. Sensitive ()hieets ...l.
`' New conferences and shows devoted to touch are being created \l’t'il'ldWlClC.
`
`{hie oi the several factors driving this excitement is that there is no perfect touch
`technology. Each of more than a dozen technologies has specific strengths and weak—
`tiesscs. For example. there still is not one touch technology for a smartphone that has
`high durability. high optical performance. multi~touch a flush surface (edge—to—edge
`glass or plastic}. and can he touched with any object including a small—tipped throw—
`away stylus — at any costl Yet all of these characteristics are in strong demand from
`smartphone ()Ekiis.
`Another factor is the variation in requirements across different touch applications,
`For example. how many simultaneous touches does a touch technology need to
`support”! The answer depends on the application and the device size.
`In small,
`narrow-hordered mobile devices such as smartphones and tablets. the ability to
`recognize and track many touches is particularly useful when iitiplerncnting “grip
`suppression" algorithms {see the article in this issue on projected-capacitive touch
`technology for more details}.
`in nethooks and notebooks. one hand is almost always
`used to hold the, screen steady. so tl e maximum number of touches that the other hand
`can apply is limited to live. and since it's only one hand. three or four is probably a
`practical limit.
`In desktop monitors and all—in—one computers. there. are zero applica—
`tions today that require more. than {Wit touches. so the device ()EMs currently have
`little interest in incorporating (more expensive) touch screens that can support more.
`than [we touches.
`ln large—format t>30-in.i displays. the majority of applications
`today are "point—and—click" that require only a single touch (excepting CNN—TVs
`multi-toueh display. of course). On the other hand. it's not much of a stretch to
`envision ntulti-player games and educational applications on large-format displays
`requiring 4— | ('l touches in the near future.
`In reality. the maximum number of touches is just one of more than 40 characteris-
`tics that del‘ine a touch screen. Ultimately. what really matters is the user experience.
`which depends on all of the touch screen's characteristics. the. user interl'aec. the appli-
`cation. and the operating system all coming together to Work in harmony to do what
`
`
`
`
`
`4
`
`hiturnimrrm {hymn we
`
`tt-rintimred on page 45} .
`
`
`nu aw finial-rm
`
`May 25—28, 2010
`
`-
`
`
`
`DISPLAY
`WEEK-
`Seante. wt.
`- May-2328. 2010 - wh'ts-SGQO‘ICDTQ
`
`
`
`
`
`
`.i, Have you forgotten
`
`'zboutthis issue?
`.
`infoimatioitdis l ".o
`Log onto '
`
`_ and cites no Archive.”
`
`.
`-
`"
`Display
`" azzlesSanArttor‘lio
`
`(Ont-Mimi! 'SINGS:- 0F
`'
`MIISLE an
`i‘l’ml Dim
`
`alt-Emma tea
`gnome-rs mo
`TECHNOLOGIES
`
`IMPEOVRD om:
`DI$DIJWS'
`
`-
`
`‘1
`
`wwiiwmt 2m
`
`:5...“an .
`, teams-tom
`
`Plus
`“0501034
`ficflflatofifl'
`BEHINO- BE‘tIlNfi'E-
`5U mu GAME!-
`!MQ DIRECTORY 0‘ 1H!
`NSPUIY INDUSIW
`Inumuf m‘ flu- Slb
`
`

`

`5r
`": CW?
`
`www.mtrck-chcmicals.com
`
`
`
`.
`If}: i'! n .
`.515EI<.ewUrk-r:gw'ti’1"v‘trck-Cherrucels?
`
`Zoom in on the story!
`
`And read how we put smiles on
`our customers faces at
`
`www.memk-chemicals.com/testimonials
`
`Tas what’s in if for you. Merck Chtmicsls
`
`www.merck4displays.
`
`Visit usat DISPLAY WEE Z
`Washington] H334}!
`
`EMERCK
`
`
`
`TI‘?I53?||.'_\nn"'IIM-rh'v'Knoll.Ir."
`
`
`
`
`
`

`

`
`
`Anniversary of a Prediction
`
`by Paul Drzaic President, Society for Information Display
`
`There‘s a quotation generally attributed to the famous U33.
`baseball player Yogi Berra: "It‘s tough to make predictions.
`especialiy about the future.“ While we hear predictions all
`the time from various sources. it"s uncommon for these
`
`predictions to accurately portray the future. Even rarer. and
`fie
`astonishing, are the predictions that appear controversial or even outrageous when
`they are made. but are proven to be true overtime. For this column. I'd like to
`celebrate a prediction made during a keynote address at the SID Symposium in 2005
`that to my mind fits the “astonishing" description.
`President Sang-Wan Lee of Samsung Electronics provided the talk I‘m referring to.
`His address was entitled "LCD Revolution — The 3rd Wave." and it provided a look
`back at the penetration of large-area active—matrix liquid-crystal-dispiay (AMLCD)
`technology into notebook and desktop applications (the lst and 2nd wavesl. He
`presented an impressive array of statistics showing progress in AM LCDs. including
`dramatic performance improvements in response time, brightness. contrast ratio, color
`depth. and viewing angle. President Lee also noted the indusuy‘s malti-hillion dollar
`investment in AMLCD manufacturing capabilities. At that time, this meant 20
`companies operating 79 manufacturing lines worldwide. including one Gen 7 and four
`Gen 6 fabs. Over 100 million LCD monitor units Were shipped that year. Based on
`these successes. President Lee projected that AMLCDS would next. dominate the
`television market. supplanting CRTs. plasma displays. and projection displays.
`It‘s important to note Lhe electronic-display landscape in 2005. The retail price for
`40—42—inch LCD televisions was approaching the $2500 range. It was possible to
`purchase LCD TVs for less than $1500. but only in 30inch and smaller sizes. CRTs
`held over TOG/r- of the market share for televisions. with AMLCDs. plasma displays,
`and projection displays lighting tooth and nail for the balance. Most commonly,
`commercial AMLCD TV sizes topped out at around 42 inches. while plasma and
`proicction displays were available up to 60 inches. While everyone was relatively
`confident that CRTs would continue to lose market share to flat-panel displays, it was
`not at all clear how quickly that erosion would take place or which mix of technolo-
`gies would win.
`That landscape explains wh),I Sang-Wan Lees predictions were so astounding at the
`time. Looking ahead to 20] 0. he made the following claims:
`
`'
`
`'
`
`-
`'
`
`-
`
`°
`
`AMLCD televisions would attack both CRTs at the low end and plasma!
`projection screens at the high end. competing in cost. quality. and size.
`A target of |00 million AMCLD televisions by 20l 0 was achicvahlc —
`conventional forecasts were in the 60—70 million unit range.
`The retail price for a 32-inch AMLCD would be less than Sl000.
`Commercial LCDs would compete head lo head with plasmafprojection units
`in sizes up to 70 inches.
`The industry would continue to invest in large. new-generation fat-s up to
`Gen 9.
`
`New applications would emerge based on this availability.
`
`521) Executive Committee
`csident: P. [)rzaic
`President-Elan: M. Anamitm
`.= Regimla! VP. Americas: T. Voulsas
`5 Regiotiai\-‘l‘.fitsia: S Nuctnora
`
`
`- Regional VP. Europe: J-N. l’crhct
`treasurer. B Berkeley
`Secretary. A Ghosh
`Past President:
`i_. Weber
`
`
`
`
`Directors
`
`a); Area: 5. Pan
`Beijing:
`ll. P. Wang
`Belarus.
`\’.\’yssotski
`
`Canada:
`'1'. C. Schmidt
`
`Dayton: DQHopper
`Delaware Valley:
`.I. W. Parker [ll
`Detroit:
`.E Kaniclzi
`France: J-l‘. Pamcix
`Hong Kong:
`l-l. Leone
`India G. Rain-swarm
`Israel. {i Golan
`Japan N lhnralti
`Korea: K. W. Wharf;
`Latin Amcnca: A Marnmana
`Los Angelcs: L. Tannas
`Mid-Atlantic:
`l). Morton
`Mid—Europe: G. Oversluizcn
`New England:
`.3. 3itwoucl
`Pacific Nordiwest' A. Abileali
`Russia:
`I. N. Compancis
`San Diego: 1‘. Stricgler
`Singapore: C. C. Chao
`Southwest: 5. U‘ Rourke
`Taipei: Y. T. Tsai
`Texas: 7.. Yarliv
`1. Sage
`U.K.&1reland:
`Ukraine: VSergnn
`Upper Mid-West: Hi. Bahadur
`Committee Chairs
`Acadeuu'c: F.Bos
`Archivesinstorian: P. Baron
`Bylaws: A. Kmetz
`Chapter Formation: Z. Yaniv
`Convention: D. Eccles
`Definitions (it Standards: 1. Misccli
`Honors 8: Awards: C. King
`Long—Range Planning: M. Anandan
`Membership: S. Pan
`Nominations: L. Weber
`Publications: Btinadc
`%nior Member Grade: M. Anandan
`
`
`
`Chapter Chairs
`Bay Area l). Atmitagc
`Beijing: NXu
`Belarus:
`\i'. Vyssotslti
`Canada: A. Kitai
`Dayton: F. Meyer
`.I Rlakc
`Delaware Valley:
`Detroit: 5. Pain
`France: 1. P. Parneiit
`Hong Kong: H. S. Kwoit
`india: 5. Katina
`lsrat-l: B. lnditsky
`Japan: K. Rondo
`Koren:
`‘i’. S Kim
`Latin America: V Mammana
`Lou Angelcs:
`l". Joujon—Roehc
`Mid-Atlantic: 0. Tan
`Mid—Europe: Adelfs
`New i-Lngiand: H. Harkavy
`Pacific Nordiwest: A. Silzars
`Russia: S. Pascchnik
`San Diego: 111) Stri-sgler
`Singaporefllala} a: X. Sun
`Southwest: H.’l!1lli‘3
`Taipei: Y. Tsai
`'l'eias- S. Penna
`UK. 3: Ireland: 5. Day
`Ukraine:
`\’.Scrgaii
`Upper Mid—West: P. Downer-i
`Office Administralion
`
`
`Society for Information Display
`2475- S. l'iascorn Ave. Ste.
`il-‘l
`Campbell. CA 95005
`4t]}lr’2l79-.l9tll. tax 38.3.:
`c—mail' ut'tit'e Lt? Sld ore
`littp:.I'-"-.\-'\s'\-;.sid.org
`
`Attending the talk, I distinctly heard the audience aodihly reacting to these claims —
`
`the price points. unit volumes. and commercial sizes were viewed as extremely
`
`
`(continued on page 43?]
`
`6
`
`Inforimtrion Display 3H0
`
`

`

`LJLOBAL illJHTZfiG
`T ECHNOLOGIES ENC.
`h
`
`GLT. The Wodd’s
`
`Most Efficient LED—Based
`Edge-fighting Sc:
`
`BLT hat?
`
`“-1 hf
`
`_ 311.:
`
`. . "
`
`--
`
`__
`- Chemical
`- Heat Tern ' "
`.Techn‘mat
`
`_
`
`Beveling
`
`APPLICAT? .-N-
`
`-"3Ru§g'eéiz§d_'-Dispia
`Equipment, Ml
`
`428 Tuna Street
`
`Clarksburg, WV 26301
`Te': 304'524'7451
`wwweuropteccom
`eu roptecusa @ europteccom
`
`
`
`440-922-4584
`
`info®glthom8£0m
`wwwglthomacom
`_‘
`'
`See Lrs at
`
`E EE F09!
`Glass and Palmer
`Technologies
`
`See Us at Uispiay Week 2010 in Scattie
`
`Display Week 2010 in Seattle
`
`

`

`
`
`LCD III-Cell Touch
`
`Imagine being able to touch the surface ofan)‘ displav with yourfinger or a stylus and
`have the location. ofyour touch instantly identified down to the exact pixels. Imagine this
`happening with no cover glass or special coatings or an)! other obstruction in front of the
`display, and with minimal change inside the display. That’s the promise of in-cell touch.
`The problem is that the promise remains mostly out of match. This article explores that
`promise and its current status in detail.
`
`by Geoff Walker and Mark Fihn
`
`TIErcrm “in-cell touch" generally refers
`
`- Orr-cell: The touch sensoris an X-Y
`
`filter substrate. Strictly speaking. when
`
`to the implementation of :1 touch gentsrtr inside
`the cell of a liquid-crystal display {LCD}.
`While the term and technology have been
`applied to touch sensors integrated into
`plasma-display panels. electrophorctic
`{electronic paper) displays. and OLEDs. Ll‘tts
`article examines only the application in LCDS.
`LCD in-cell touch currently exists in three
`terms. only one of which is physically inside
`the LCD cell. The three {or-ms are as follows:
`
`:
`
`array of capacitive electrodes deposited
`on the top or bottom surface of the color—
`
`the electrodes are on the bottom surface
`of the substrate they are physically inside
`
`————_-—-—-————-———-—-_—.
`Table 1: The difficulty of integrating each of l I touch technologies as
`out-cell touch is shown as green (easy), yellow {medium}. and red (hard)
`
`Touch Technology
`
`Difficulty of Out-Cell Integration
`
`l
`.
`;
`
`1
` -
`
`
`Cameras & reflectors can be mounted on top of the LCD
`cell; no cover glass is required
`
`
`
`-
`
`A PCB must surround the entire LCD; no cover glass is
`required
`'
`
`lit-cell: The touch sensor is physically
`inside the LCD cell. The touch sensor
`
`can take the form (flight-sensing ele-
`ments. micro-switches. or capacitive
`electrodes.
`
`Optical _
`
`_
`
`|
`
`Traditional infrared
`
`
`
`Geoff Walker is the Marketing Evangelist &
`industry Gum at Nextlv'l’inclow, the leading
`supplier of optical touch screens. He is tin--
`Gites; Editorfln‘ this issue of Information
`Display, is a recognimd ronr‘lt—indnstrr expert
`who has been working with touch srreensfor
`30 years. He can he reached at 1108506- 3556
`and git-‘allcerGIlnextwimlowrom. M’arlc Film
`is publisher of the Veritas et Visns newslet-
`ters, foctrsed on the technologies and markets
`related inflexible displar-s. displa_\‘—related
`standards and regulations, 3-D displat-‘s,
`high—pt'rj'rmnance displays, and touch
`screens. He can he reached at 2541’??? 49603
`or mark CT ve rituseti'isns. cont.
`
`
`
`
`
`Surface capitalise _
`
`
`
`
`_ The metal LCD frame cannot contact-fire
`E touchscreen glassand artist be grounded
`
`Serfacc Acoustic Wave
`The reflectors and transducers an the touch—screen glass
`
`must be premixed -
`'
`
`
`
`
`Waveguide Irritated (RPO)
`Waveguides'and scrim must be mounted on the surface
`
`
`of the {much-screen glass; {R LEDs must be attached to
`the odor.- of the glam
`'
`'
`
`
`
`
`3
`
`information Uispirir it’ll)
`
`tflo’t—ng‘nmmmonions] .00 + .00 IO SID 3010
`
`

`

`
`
`any acceptance from the LCD manufacturers
`in terms ot'out-cell integration.
`
`III-Cell and Orr-Cell Touch Technologies
`There are currently three different touch tech-
`nologies being used in in-ccll and onwcell
`touch. They are summarized as follows:
`
`
`
`« Light Sensing {In-Celt): This technol-
`ogy. also called "optical." uses the addi—
`tion of a plioto-tranSistor into some or all
`of the LCD‘s pixels. The screen can he
`touched with a finger. stylus. light—pen.
`or laser pointer. The touch-sensing array
`can also he used as a scanner. A cover-
`
`
`
`
`
`
`
`
`
`
`
`
`the cell — but this is still usually called
`“on—cell” because of the type of elec—
`trodes. (This is a good illustration ofthe
`fact that the lertrtittology for in-cell touch
`is still evolving.)
`- Ont-cell: This new term. coined in 2009
`
`by AU Optronics Corp. describes the
`configuration in which a standard touch
`screen {usually only resistive or pro—
`jected capacitive} is laminated direCLly
`on top oi" the LCD during module manu-
`facturing. Unlike the other two, this con-
`liguration typically requires an additional
`piece of glass — even though it is techni—
`cally possible to use a film—film resisrive
`touch screen in this case.
`
`Because these terms and the technology
`that they describe are quite new. there is still
`quite a bit of variation in their use in technical
`and marketing documents. Caution is advised
`while reading any relevant material; ”on—cell"
`may often be used to describe something that
`is actually “out—cell." and vice-versa.
`
`Out-Cell Touch
`
`Out-cell is hasicallyjust the integration ot‘a
`touch solution at the LCD-module manufac-
`
`turer. This is not fundamentally di l‘l‘erent than
`the touch integration that is often performed
`by third-party integrators today. The major
`difference is that it is likely to be lower cost.
`which means that out-cell is probably going to
`become a general trend. one most likely to
`occur with technologies that are easy to inte-
`grate. Table | catcgorires all current touch
`technologies in terms oftlte difficulty of
`integrating them as out—cell touch.
`As shown in Table l. resistive and pro—
`jected-capacitive touch screens are the most
`likely candidates for out-cell integration.
`These two most commonly used technologies
`accounted for over 95% of the total number of
`
`touch screens shipped in 2009. Both are. often
`attached to LCDs by third—party integrators.
`so it is easy for the LCD-module. manufacv
`turcr to do the same. Projectedncapacitive
`sensors are increasingly being made on con-
`verted color-filter fab lines. so LCD manufac—
`turers have easy access to the technology. All
`ol‘ these t‘actors are causing ti number of well-
`known resistive and projected—atpaciti t-‘e
`touch-screen manufacturers to begin to work
`closely with major I.CI) manufacturers on
`onuccll integration. Among the other touch
`technologies. only optical seems to be gaining
`
`
`
`
`
`glass can be used to protect the LCD‘s
`surlace.
`
`. Voltage Sensing (ht-Cell): This tech—
`nology. also called “switch sensing."
`uses the addition of micro-switches for
`
`X and Y coordinates into each pixel or
`group of pixels. The screen can he
`touched with a finger or a stylus. within
`the damage limits of the LCE'J‘s sun"ace.
`A cover-glass cannot be used to protect
`the LCD's surface.
`
`. Charge Sensing (In-Cell): This technol—
`ogy. also called “tircssm capacitive.“
`uses variable-capacitor electrodes in each
`pixel or group of pixels. The screen can
`be touched with a finger or stylus. within
`the damage limits of the LCD‘s surface.
`A cover-glass cannot be used to protect
`the LCD‘s surface.
`
`- Charge Sensing (On-Cell]: This tech-
`nology. also called "capacitive sensing.”
`is basically the same as today's projected
`capacitive.
`lt uses an X-Y array of
`capacitive-sensing electrodes on the top
`surface of the color-filter substrate. The
`
`screen can he touched only with a linger.
`A cover-glass can he used to protect the
`LCD's surface.
`
`Table 2 shows which LCD manufacturers
`
`are working on each ofthe three in~ccllfon—
`cell technologies. This list. based {in investi—
`gation done by the authors. is undoubtedly
`both incomplete and inaccurate because not
`all manufacturers are forthcoming about their
`iii—progress research. The authors take full
`responsibility for all errors and omissions.
`The theoretical advantages of in—cell touch
`have always seemed very attractive. These
`include the following:
`- Minimal or no added size. thickness. or
`weight {and therefore no elTect on the
`
`Samsung
`
`
`
`
`
` K
`
`
`
`HannStttr
`
`ettti product‘s industrial design) in order
`to achieve the touch function.
`
`- Theoretically unlimited t controller-
`dependent] mold—touch functionality.
`since each pixel or group ot‘rtixels
`should be individually detectable.
`- Conceptually very high touch-perfor-
`mance. including low parallax error
`{assuming no cover-glassl. very accurate
`and linear touch—point data (due to the
`unchanging underlying pixel matrix). and
`potentially higher resolution than the
`LCD {through inter-pixel interpolation
`when :1 sensor is present in each pixel).
`- Theoretically much lower cost for the
`touch function. since the changes in an
`LCD’s manufacturing cost should be.
`minimal.
`
`
`
`Table 2:
`
`ln-cell and on-cell
`
`touch technologies are