高信赖性触控方案
一般触控式面板的透光度以全光谱的测试仪器或以光波长550nm 的仪器测量出来为78% – 81%，这是过去十几年一般电阻式触控面板产品规格。若放在某些亮度较低的LCD 面板前，或是在比较亮的环境中，往往造成使用者看不清楚LCD 萤幕的讯息。AMT 高穿透式触控面板(High Light Transmission, HLT) 可以让光穿透度增高为85%，其原理是在ITO 玻璃与ITO 膜镀上AR (Anti-Reflective) 层来增加光穿透度的效果，让低照度的LCD 讯息可以被看清楚一点。而在高穿透率的触控面板上依照不同的玻璃厚度及镀的AR膜程度，可以决定光的穿透度。
高穿透式触控面板其不同的光穿透度，使用不同厚度的玻璃，穿透率如下表：
Glass Thickness
Light Transmission Rate
1.1 mm glass
85%
1.8 mm glass
84.5%
Specifications
Optical
· Surface finish: Antiglare or Clear
· Light transmission: 85%
Mechanical
· Sizes: 3″ to 19″ diagonal size
· ITO glass thickness: 1.1mm and 1.8mm
· Tail design: FPC type, Integral tail or others
· Tail terminator: ZIF, Berg, AMP, AMP compatible or others
· Input method: finger, gloved, stylus
· Activation force: 0.1N to 1.0N depending on design
· Surface hardness: 3H
Environmental
· Operating temperature: -20℃ to +70℃
· Storage temperature: -40℃ to +80℃
· Operating humidity:
· if temp. ≧ 40°C, humidity less than 80% RH
· if temp. < 40°C, humidity less than 90% RH
· No dew condensation
· Storage humidity: ambient humidity
Electrical
· Insulation resistance: 10M ohm@25V DC
· Linearity:
· < 1.5% for 4-, 8-wire touch
· < 1.0% for 5-wire touch inner area
· < 1.5% for 5-wire touch perimeter area
· Contact bounce:
· < 10ms for 4-, 8-wire touch
· < 15ms for 5-wire touch
· Operating voltage: 5.5 V
· Contact current: 70mA (maximum)
