12/11@ b.n.lin email: [email protected]@unidisplay.com unidisplay
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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 Touch panel introduction Detect method on touch panel Difficulties on the IC solution
Mobile device
Small Border? Flat surface? Finger Touch? Gesture? Application? Good platform? Brand? Others?
Apple i phone
Flat surface
Contents
Mobile device v.s. TP Touch product & history Touch panel introduction Detect method on touch panel Difficulties on the IC solution
Mobile devices
From Cypress
Multi-touch history
From Cypress
Multi-touch history
Touch Screen Application Map
Contents
Mobile device v.s. TP Touch product & history Touch panel introduction Detect method on touch panel Difficulties on the IC solution
Touch panels
Touch panel technologies
Touch via wave
Microsoft surface
1. table 2. IR illuminator 3. IR detector 4. Projector
FTIR – Jeff Han
Frustrated Total Internal Reflection
From perspective pixel
DIY – surface & FTIR
http://uiui.mmdays.com/2008/05/09/diy-surface-table-ii/
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 )
Contents
Mobile device v.s. TP Touch product & history Touch panel introduction Touch Detect method Difficulties on the IC solution
Resistive touch
Pressure to shorting ITO
AMR -
Analog matrix resistive
Capacitive touch
Capacitive touch
Capacitive – button(0D)/scroll(1D)
Capacitive – 2D
Capacitive touch sense methods
Capacitive – PCAP design
Single capacitance Mutual capacitance DITO Structure Stack Structure
A. DITO structure
B. Stacked structure
Capacitive – single v.s. mutual
Contents
Mobile device v.s. TP Touch product & history Touch panel introduction Detect method on touch panel Difficulties on the IC solution
Difficulties on IC solution
Market IO number Panel Size Compatible with panel IC & component power consumption Spec. define Patent Others?
Conclusion
Small size - touch with finger Large size - touch with finger + pen Many Solutions Many Questions Many Opportunities
Q and A