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Fundamentals of Touch Technologies and Applications Geoff Walker Principal Analyst IMS Research S4: Fundamentals of Touch Technologies and Applications

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Fundamentals of Touch Technologies and Applications Geoff Walker Principal Analyst IMS Research S4: Fundamentals of Touch Technologies and Applications Short Course S-4: Fundamentals of Touch Technologies and Applications Geoff Walker Principal Analyst IMS Research S4: Fundamentals of Touch Technologies and Applications Geoff Walker Principal Analyst IMS Research May 15, 2011 File Download: www.walkermobile.com/SID_2011_Short_Course_S4.pdf v1.1 www.imsresearch.com © Copyright 2010 IMS Research Agenda: Part 1 Admin [3] Introduction [7] Multi-Touch [9] Mainstream Touch Technologies Analog Resistive [7] Projected Capacitive (Pro-Cap) [14] Surface Capacitive [6] Surface Acoustic Wave (SAW) [7] Traditional Infrared (IR) [7] Significant Emerging Touch Technologies Embedded (In-Cell, On-Cell & Out-Cell) [19] Camera-Based Optical [6] Multi-Touch Resistive [9] [ ] = Number of content slides in each section 3 Agenda: Part 2 Other Emerging Technologies Acoustic Pulse Recognition (APR by Elo) [5] Dispersive Signal Technology (DST by 3M) [4] Waveguide Infrared (by RPO) [5] Vision-Based [5] Force-Sensing [4] Electromagnetic Resonance (EMR) Pen Digitizer [4] Comparing Touch Technologies [4] Conclusions [3] [Total = 128] 4 About IMS Research IMS Research A leading independent supplier of market research and consulting to the global electronics industry Automotive & Transport Financial & ID Technologies Communications & Wireless Lighting & LEDs Computer & Office Equipment Medical (InMedica) Consumer Electronics Power & Energy Convergence Security & Fire Displays & Touch Semiconductor Factory Automation Offices in UK (HQ), USA, China, Taiwan, Korea & Japan >100 analysts worldwide Clients in >50 countries Publishes >200 market-research reports per year Known for detailed, in-depth, highly analytical reports 5 Key Customers 9 of the top 10 semiconductor companies 8 of the top 10 automotive-electronics suppliers 8 of the top 10 telecomm-equipment providers 7 of the top 10 power-supply companies All of the top 10 industrial-automation companies 7 of the top 10 set-top-box manufacturers All of the top 10 video-surveillance companies 6 Introduction Source: Elo TouchSystems 7 www.imsresearch.com © Copyright 2010 IMS Research Two Basic Categories of Touch Opaque touch Dominated by the controller chip suppliers ● Atmel, Cypress, Synaptics, etc. ● One technology (projected capacitive) ● Sensor is typically developed by the device OEM Notebook touchpads are the highest-revenue application ● Synaptics ~60% share; Alps ~30% share; Elan ~10% share ● Sensors are all two-layer projected capacitive There is no further discussion of opaque touch in this course Transparent touch on top of a display Dominated by the touch module manufacturers (100+ worldwide) 13 technologies 8 2010 Touchscreen Market by Size and Type of Technology 2010 Small-Med (<10”) Large-Ar e a (>10”) TOTAL Technology Revenue Units Revenue Units Revenue Units Resistive $646M 229M $263M 7.1M $908M 236M Projected Capacitive $2,853M 273M $287M 6.2M $3,140M 279M Surface Capacitive $0M 0M $162M 1.3M $162M 1.3M Acoustic (SAW & BW) $0M 0M $159M 2.6M $159M 2.6M Infrared $0M 0M $9.9M 0.3M $9.9M 0.3M Mainstream $3,499M 502M $881M 18M $4,379M 519M Emerging $63M 0.1M $259M 1.8M $321M 1.8M TOTAL $3,562M 502M $1,140M 20M $4,700M 521M Revenue Units Revenue Units Small-Medium 76% 96% Mainstream 93% 99% Large-Area 24% 4% Emerging 7% 1% TOTAL 100% 100% TOTAL 100% 100% Market size estimates are based on DisplaySearch’s “Touch-Panel Market Analysis 2010 4Q Update Report” (January 2011) 9 2010 Touchscreen Market by Technology 2010 2010 2010 2010 Technology Revenue Share Units Share Projected Capacitive $3,140M 67% 279M 52% Analog Resistive (all forms) $908M 19% 236M 44% Optical (all forms, including vision-based) $228M 4.9% 1.0M 0.2% Surface Capacitive $162M 3.5% 1.5M 0.3% Acoustic (SAW, APR & DST) $159M 3.4% 2.6M 0.5% LCD In-Cell & On-Cell (all forms) $61M 1.3% 14M 2.6% Digitizer $33M 0.7% 0.5M 0.1% Infrared (all forms) $10M 0.2% 0.4M 0.1% Others $0M 0% 0M 0% TOTAL $4,701M 100% 535M 100% Market size estimates are based on DisplaySearch’s “Touch-Panel Market Analysis 2010 4Q Update Report” (January 2011) 10 Touch Market Forecast 2010-2016 DisplaySearch 2010 Touch Market Analysis $16 Millions $14 $12 In-Cell Others $10 On-Cell Infrared Digitizer $8 Optical Imaging Acoustic Revenue ($B) Revenue $6 Surface Capacitive Projected Capacitive $4 Resistive $2 $0 2009 2010 2011 2012 2013 2014 2015 2016 Forecast is from DisplaySearch’s “Touch-Panel Market Analysis 2010 Annual Report” (June 2010) 11 Touch Technologies by Size & Application 30”) 30”) Format - 17”) – – – ” 7 Touch Technology Mobile (2” Stationary Enterprise (10” Stationary Consumer (1 Large >30”) ( Analog Resistive M M L Analog Multi-Touch Resistive (AMR) E E Surface Acoustic Wave (SAW) M E L Traditional Infrared (IR) M E M Waveguide Infrared (from RPO) E Surface Capacitive M Projected Capacitive (P-Cap) (ITO) M E E Projected Capacitive (P-Cap) (wires on film) L L Camera-Based Optical M M Acoustic Pulse Recognition (APR from Elo) E L L Dispersive Signal Technology (DST from 3M) L Embedded (in-cell & on-cell) E Vision-Based (like Microsoft Surface) E Force Sensing E M = Mainstream L = Low-volume E = Emerging 12 Touch Technologies by Materials & Process Touch Technology Transparent No Transparent Conductor (ITO) Conductor Continuous Patterned Edge Conductors No Edge Conductors Analog resistive Acoustic Pulse Surface capacitive Recognition (APR) Dispersive Signal Low High Technology (DST) Resolution Resolution Traditional infrared (IR) Analog Projected Waveguide infrared multi-touch capacitive Surface acoustic wave (SAW) resistive Embedded (AMR) Optical (In-cell & Force sensing = Mainstream on-cell) = Emerging Vision-based 13 Touch Is An Indirect Measurement One Reason Why There Are So Many Technologies… Touch Technology What’s Being Measured Resistive (all forms) & Voltage Embedded (voltage-sensing) Surface capacitive Current Surface acoustic wave Time delay Projected capacitive, Change in capacitance Embedded (charge-sensing) Optical & Infrared (all forms), Absence of light Embedded (light-sensing) in high ambient Embedded (light-sensing) in low ambient Presence of light Vision-based Image Acoustic Pulse Recognition (APR) & Bending waves Dispersive Signal Technology (DST) Force sensing Force The ideal method of detecting touch has yet to be invented! 14 Multi-Touch Sources: Engadget, Do Device and Good Times & Happy Days 15 www.imsresearch.com © Copyright 2010 IMS Research Multi-Touch Multi-touch is defined as the ability to recognize two or more simultaneous touch points Multi-touch was invented in 1982 at the University of Toronto (not by Apple in 2007!) “Pinching” gestures were first defined in 1983 (not by Apple in 2007!) Windows 7 (released 10/22/09) supports multi-touch throughout the OS and is structured to support an “unlimited” number (~100) of simultaneous touch points Android, iOS and Linux currently support 4-5 touches 16 Multi-Touch Architecture Capable of decoding multiple Application streams of moving points and taking actions in response Capable of forwarding multiple Operating System streams of moving points (and acting on a defined subset of them) Touchscreen Capable of delivering sets of Controller & Driver simultaneous points to the OS Capable of sensing multiple Touchscreen Sensor simultaneous points 17 Multi-Touch Technologies Multi-Touch Win-7 Logo Commercial MT Touch Technology Capable? (#) Capable? Product Example Projected Capacitive Yes (unlimited*) Yes Apple iPhone; Dell Latitude XT Analog Multi-Touch Yes (unlimited*) Yes Gateway ZX6910 Resistive (AMR) AiO PC LCD In/On-Cell (all forms) Yes (unlimited*) Yes Samsung Camera Vision-Based Yes (unlimited*) Yes Microsoft Surface Optical Yes (2+) Yes HP TouchSmart Surface Acoustic Wave Yes (2) Yes Lenovo A700 (Elo TouchSystems) AiO PC Waveguide Infrared Yes (2) Yes LG Display 13.3” (RPO) Notebook (SID) Traditional Infrared Yes (2) Yes Nexio 42” Monitor Acoustic Pulse Recognition Future (2) Maybe Technology under (APR - Elo) development Bending Wave Future (2) Maybe Technology under (DST – 3M) development Analog Resistive No No -- Surface Capacitive No No -- Force-Sensing No No -- * Controller-dependent, not sensor-dependent 18 Windows-7 Logo A set of touch performance standards designed to ensure a high-quality user experience Test 1: Sampling Rate Test 2: Single-Touch Taps in 4 Corners Test 2: Single-Touch Taps in 5 Other Locations Test 3: Single-Touch Press-and-Hold Test 4: Double Taps Test 5: Multi-Touch Points Test 6: Press and Tap Test 7: Straight-Line Accuracy Test 8: Maximum Touch Lines Test 9: Multi-Touch Straight Lines Test 10: Line Accuracy Velocity Test 11: Single-Touch Arcs Test 12: Pivot Test 13: Multi-Touch Arcs Test 14: Ghost Point Test 19 Some Reasons Why Multi-Touch Has Become So Important Apple Apple established multi-touch as a “must-have” for coolness. The result is that people of all ages expect every display they see to be touchable with multiple fingers Gaming Gaming is a natural for multi-touch. Try playing air hockey without multi-touch… Multi-user collaboration When two people want to collaborate on a large screen (e.g., a student and teacher on an interactive whiteboard display), multi-touch is essential. Identifying which touch belongs to which user is still an unsolved problem, however. 20 More Reasons Why Multi-Touch Has Become So Important Unintended touches One of the major values of multi-touch is to allow the system to ignore unintended touches (palm rejection, grip suppression, etc.). As desktop screens become more horizontal
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