Download - Touch Screen Technology By: Rebecca Lukito. Two Main Touch Screen Systems Resistive Capacitive
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Touch Screen TechnologyTouch Screen TechnologyBy: Rebecca LukitoBy: Rebecca Lukito
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Two Main Touch Screen SystemsTwo Main Touch Screen Systems
ResistiveResistive
CapacitiveCapacitive
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Resistive SystemResistive System
Consists of a glass panel with two layers, Consists of a glass panel with two layers, conductive and resistive metallic layersconductive and resistive metallic layers
Electrical current runs between both layers Electrical current runs between both layers when operationalwhen operational
The two layers make contact when The two layers make contact when touched, sending coordinates to the drivertouched, sending coordinates to the driver
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Resistive SystemResistive System
http://www.computerworld.com/s/article/9231961/How_it_works_The_technology_of_touch_screens?taxonomyId=12&pageNumber=1
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Resistive SystemResistive System
Examples:Examples:- PalmPilot PDAs- PalmPilot PDAs
-Certain GPS systems -Certain GPS systems
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Capacitive SystemCapacitive System
One layer that stores electrical charges on One layer that stores electrical charges on the panel the panel
When touched with a finger, the electrical When touched with a finger, the electrical charge is transferred to usercharge is transferred to user
Computer then coordinates where touch Computer then coordinates where touch took place took place
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Capacitive SystemCapacitive System
http://www.computerworld.com/s/article/9231961/How_it_works_The_technology_of_touch_screens?taxonomyId=12&pageNumber=3
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Capacitive SystemCapacitive System
Examples:Examples:
- Ipods, Ipads, Iphones etc…- Ipods, Ipads, Iphones etc…
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What can trigger the screen? What can trigger the screen?
~ Resistive~ Resistive
- Anything from a finger to a pen - Anything from a finger to a pen
~ Capacitive~ Capacitive
- Only things with a conductive - Only things with a conductive
inputinput
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PricePrice ClarityClarity Damage Damage Resistance Resistance
ResistiveResistive CheapestCheapest Low ClarityLow Clarity Easiest to Easiest to damage with damage with sharp objectssharp objects
CapacitiveCapacitive More More expensiveexpensive
High ClarityHigh Clarity Less prone to Less prone to damage by damage by sharp objectssharp objects
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ReferencesReferences "How Do Touch-screen Monitors Know Where You're "How Do Touch-screen Monitors Know Where You're
Touching?" Touching?" HowStuffWorksHowStuffWorks. N.p., n.d. Web. 10 Nov. . N.p., n.d. Web. 10 Nov. 2012. 2012. <http://computer.howstuffworks.com/question716.htm>. <http://computer.howstuffworks.com/question716.htm>.
"How It Works: The Technology of Touch Screens." "How It Works: The Technology of Touch Screens." ComputerworldComputerworld. N.p., n.d. Web. 10 Nov. 2012. . N.p., n.d. Web. 10 Nov. 2012. <http://www.computerworld.com/s/article/9231961/How_i<http://www.computerworld.com/s/article/9231961/How_it_works_The_technology_of_touch_screens?t_works_The_technology_of_touch_screens?taxonomyId=12>. taxonomyId=12>.
"Who Invented Touch Screen Technology?" "Who Invented Touch Screen Technology?" About.com About.com InventorsInventors. N.p., n.d. Web. 10 Nov. 2012. . N.p., n.d. Web. 10 Nov. 2012. <http://inventors.about.com/od/tstartinventions/a/Touch-<http://inventors.about.com/od/tstartinventions/a/Touch-Screen.htm>. Screen.htm>.