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12/11@ 元智大學資工書報演講

觸控技術簡介. 12/11@ 元智大學資工書報演講. B.N.Lin Email: bnlin@unidisplay.com UniDisplay. Contents. Mobile device v.s. TP Touch product & history Touch panel introduction Detect method on touch panel Difficulties on the IC solution. Contents. Mobile device v.s. TP Touch product & history

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12/11@ 元智大學資工書報演講

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  1. 觸控技術簡介 12/11@元智大學資工書報演講 B.N.Lin Email: bnlin@unidisplay.com UniDisplay

  2. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Detect method on touch panel • Difficulties on the IC solution

  3. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Detect method on touch panel • Difficulties on the IC solution

  4. Mobile device • Small Border? • Flat surface? • Finger Touch? • Gesture? • Application? • Good platform? • Brand? • Others? Apple i phone

  5. Flat surface

  6. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Detect method on touch panel • Difficulties on the IC solution

  7. Mobile devices

  8. Multi-touch history From Cypress

  9. Multi-touch history From Cypress

  10. Touch Screen Application Map

  11. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Detect method on touch panel • Difficulties on the IC solution

  12. Touch panels

  13. Touch panel technologies

  14. Touch via wave

  15. Microsoft surface • 1. table • 2. IR illuminator • 3. IR detector • 4. Projector

  16. FTIR – Jeff Han • Frustrated • Total • Internal • Reflection From perspective pixel

  17. DIY – surface & FTIR • http://uiui.mmdays.com/2008/05/09/diy-surface-table-ii/

  18. DIY – surface & FTIR • 透明材質 (壓克力) • 紅外光投光器 (IR Illuminator) • 投影機 (Projector) • 投影布幕 (Diffuser) • 紅外線攝影機 (Webcam) • 木材 (桌子) • PC + TouchLib (偵測手指的軟體) • -反光鏡 (大Table需求) • -Lee Filter (均勻打光)

  19. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Touch Detect method • Difficulties on the IC solution

  20. Resistive touch • Pressure to shorting ITO

  21. AMR - • Analog matrix resistive

  22. Capacitive touch

  23. Capacitive touch

  24. Capacitive – button(0D)/scroll(1D)

  25. Capacitive – 2D

  26. Capacitive touch sense methods

  27. Capacitive – PCAP design • Single capacitance • Mutual capacitance • DITO Structure • Stack Structure A. DITO structure B. Stacked structure

  28. Capacitive – single v.s. mutual

  29. Contents • Mobile device v.s. TP • Touch product & history • Touch panel introduction • Detect method on touch panel • Difficulties on the IC solution

  30. Difficulties on IC solution • Market • IO number • Panel Size • Compatible with panel • IC & component • power consumption • Spec. define • Patent • Others?

  31. Conclusion • Small size - touch with finger • Large size - touch with finger + pen • Many Solutions • Many Questions • Many Opportunities

  32. Q and A

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