Ah, interesting. Still, according to the Acer page there are two models;
A2023, 8ms, viewing angle: 178/178
and
A2023 A, 5ms, viewing angle: 160/160
It is the 178 degree viewing angle that made me think S-IPS. I still wonder whether the A2023 A could be MVA and the A2023 is S-IPS. I...