Advantech IPPC-9150, IPPC-9120 General information, Analog Resistive Touchscreen Specifications

8.1 Introduction

8.1.1 General information

The IPPC-9120/9150 supports analog resistive-type and NFI-type touch- screens. Analog resistive touchscreens are popular and affordable. NFI offers advantages in exceptional brightness, clarity and readability.

8.1.2 Analog Resistive Touchscreen Specifications

Electrical

•Contact bounce: < 10 ms

•Operating voltage: 5 V (typical)

•Contact current: 20 mA (maximum)

•Circuit resistance (open): > 30 mohms

•Circuit resistance (closed): < 2000 mohms

•Sheet resistance variation: Within one screen: ± 5% nominal

From screen to screen: ± 20% of nominal

Durability

•Test conditions: 4 H hardness, 0.04" stylus pen, 350 gram load

•Point activation:

Single point, position of stylus controlled to ± 0.0005" Result: > 1 million activations

•Linear activation:

2" diagonal line, position of stylus controlled to ± 0.0005" Result: > 250,000 cycles

•Chemical resistance:

Hard coating is highly resistant to most solvents and chemicals

Optical

•Visible light transmission: 72% (typical)

•Reflection: > 25% @ 550 nm

Sensor board

•Chemical strengthened glass with 4 H hardness standard. (Test condition: ASTM D3363-92A)

Ball drop test

•Able to bear a 225 g steel ball dropped from 660 mm elevation without breaking

Environmental specifications

•Operating pressure: 30 ~ 45 grams for finger; 10 grams for stylus pen

8 0 IPPC-9120/9150 Series User's Manual