Hover sensing allows the touch screen sensor to detect and track the movements of a finger that is not in physical contact with the touch screen. The chip can detect and track objects up to a distance of 35 mm from the touch screen. Touch-free technology allows for bacteria-free interactions between people and displays. Hover supports one-finger hover up to 30 mm detection and 25 mm tracking range.
Typical System Performance Specifications
|
Category |
Conditions |
Core |
Units |
|
Accuracy |
5–12 mm diameter finger |
0.5 |
mm |
|
12-mm diameter hover finger @ 35-mm hover distance |
5–17.5 ① |
mm |
|
|
Linearity |
5–12 mm diameter finger |
0.25 |
mm |
|
12-mm diameter hover finger @ 35-mm hover distance |
5–17.5 ① |
mm |
① Typical hover performance figures depending on the actual hover implementation selected, hover core area definition, display noise, and further system-level implementation details.
Technical Specification
|
Item |
Specification |
Unit |
|
Driver chip |
mXT874U |
– |
|
Active Area |
154.08(H) x 85.92(V) |
mm |
|
Resolution |
800RGB (H) x 480(V) |
pixel |
|
Size |
7.0“” |
– |
|
Touch point |
10 |
– |
|
Interface |
IIC |
– |
|
IIC address |
0x4A |
– |
|
Operating |
Temperature |
-40 ~ 85 ℃ |
|
Deep Sleep Current |
79 |
uA |
|
Deep Sleep Power |
261 |
uW |
|
Maximum power |
49.76 |
mW |
|
Special functions |
Hover |
– |
For more info, please contact Nijkerk Electronics