Tag: response time

BenQ EX3501R 3440×1440 21:9 35″ Curved VA monitor – AMA modes revisited for response time measurements (WHL #33F3)

Finally got a photo diode for re-measuring the panel response time of the BenQ EX3501R. It’s a Vishay BPW34 type with 7.5mm² of active area, 70pF of capacitance at 0V, 600 to 1050 nm of spectral bandwidth (Reichelt claims quite a bit more?), peak sensitivity at 900nm and a relatively big half sensitivity angle of 65 degrees. Yeah, capacitance goes down when reverse biasing it, whatever, just slap it onto a probe and let’s go:

It’s not perfectly aligned at the screen, but that shouldn’t do much. I’m running GIFs with #000000, #7F7F7F and #FFFFFF frames, flickering at 20Hz. […]

28th January 2018 29th January 2018 By Bzzz In 1 Comment

BenQ EX3501R 3440×1440 21:9 35″ Curved VA monitor – line flicker (WHL #33F2)

Ahh, good old Christmas.

Been busy with other display-related things, but haven’t been using the BenQ at all. Now that everything is quiet and there are a couple days of vacation, I did fire up the system and played PoE for half an hour. And another half an hour to take some videos and photos. For whatever reason, there are now entire lines flickering during gameplay, and I claim these weren’t present the last time I used the thing. GPU driver update (still on 17.8.2 for my Radeon 260X)? Someone changed something in the PoE code (which caused an update of 600+ MB)? […]

25th December 2017 25th December 2017 By Bzzz In No Comment