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TOUCH SCREENS

Touch screens are often used as an alternative, or in addition to, more traditional human-machine interface technologies, such as a membrane switch or keyboard. The use of a touch screen allows the keypad to be reconfigured as desired to suit the application. Because of their intuitive nature, touch screens are often used in applications where the user cannot be trained to interface with the device. Kiosks and point of sale devices exemplify these applications. Memtron specializes in the integration of various technologies such as optical lamination (to combine touch screens with any of our human-machine interface solutions).

Memtron Input Components specializes in the design and manufacturing of components associated with input technologies, including membrane switches, elastomeric keypads, flex circuits, and touch screens.

Memtron Input Components specializes in the design and manufacturing of components associated with input technologies, including membrane switches, elastomeric keypads, flex circuits, and touch screens.

SPECIFICATIONS AND SELECTION GUIDE

• Touch Screen

• Analog resistive
• Provided Sizes: 3.8" - 20.1"
• Optical

• Film – anti-glare/polish, anti-reflective
• Light Transmission

• 80% standard
• 85% VLT available

• Electrical

• Insulation Impedance – 20M ohm or >@ DC 25V
• Operation Voltage – DC 5V (Max 5.5V, 3.3V available after customization)
• Linearity – 98.5% (bias less than 1.5%)
• Chattering Time – 10msec or less mechanical
• Mechanical

• Input Method – finger, pen or gloved hand
• Touch Activation Force – 125 Grams
• Surface Hardness – scrape hardness 4H of ASTM D3365 and 3H JIS K5400
• Supported Operating Systems

• MS-DOS
• Windows 95/98
• Windows XP
• Windows CE
• ME/2000NT, MAC, Linux, Unix
• Sensor Thickness (Film on Glass)

• 1.40 +/-0.21mm – available
• 2.13 +/-0.21mm – available
• 3.35 +/-0.21mm – developing
• Custom thicknesses available
• Reliability

• Operation Temperature -20ºC, -60ºC, <50% relative humidity dew condensation
• Storage Temperature -40ºC, -70ºC, <50% relative humidity dew condensation
• Humidity 50ºC at 90% relative humidity or lower for 240 hours, no dew condensation
• Touch Durability 35 million touches in a single location (350 gram force)
• Pen Hitting Durability 6 million (350 gram force)
• Pen Sliding Durability 500,000 strokes (350 gram force)
• NEMA 4, 12 and IP 65 capable
• Durability/Reliability

• Chemical Resistance:

• ASTM F 1598-95 – 6% HC1, 40% H2SO4, 10% NaOH, gasoline, acetone
• ASTM D 1308-87 – beer, tea, coffee, cola, ink, bleach
• Warranty: 2-year standard warranty. Long term warranty available.

© 2004 Esterline Corporation. All rights reserved. Trademarks and trade names are property of their respective owners. Memtron reserves the right to make changes to products and services described herein without prior notice.