Analog 4-Wire Resistive Touch Screen
The four sides of the touch screen are identified as X1, X2, Y1 & Y2 axis. There are conductive layers which are applied with voltage and when touched/resistance applied, drop In voltage is sensed by the controller.
General Specifications |
|
Type |
Analog 4 Wire Resistive |
Input Method |
Stylus or Finger |
Glass Thickness |
1.1 ~ 5.0 mm |
Environmental Specifications |
|
Operating Temperature |
-30o to +70o C |
Storage Temperature |
-40o to +80o C |
Operating Humidity |
20% to 85% RH (Non Condensing) |
Storage Humidity |
10% to 90% RH (Non Condensing) |
Optical Specifications |
|
Transparency |
≥ 80% (± 3%) |
Haze |
< 3% |
Electrical Specifications |
|
Max. Voltage |
5V DC |
Max. Current |
35mA |
Look Resistance |
X:20~500Ω, Y:20~500Ω |
Linearity |
X ≤ 1.5%, Y ≤ 1.5% |
Chattering |
≤ 15ms |
Insulation |
≥ 20MΩ/25V(DC) |
Mechanical Specifications |
|
Operating Force |
10-80 g |
Durability |
3,000,000 touch at a single point |
Hardness |
3H ~ 7H |
Capacitance |
< 5 nF |