[ADISPT01] Border of touch screen not identified

[aliphys]

According to the KD040WVFID026-01-C025A datasheet (screen used in the GIGA Display Shield) the GIGA Display Shield has a touch resolution of 480 * 800 pixels.

However, repeated testing shows that it is not possible to access the full resolution. About six pixels from each border are accessible.
This is observed when accessing the data via interrupt (TPL-ARD-GIGADT-001-ValueIRQ.ino) as well as polling (TPL-ARD-GIGADT-001-PointsPolling.ino).

For example:

Test Case ID: TPL-ARD-GIGADT-001-ValueIRQ-BL
Get border x,y value for bottom left corner...
Point: 6 788
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 6
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Point: 6 8
Bottom left border values are: 6, 6