pixel test with hanns.g hw191d

mcfly666 · 18 Sep 2006 at 23:29

hi@@ i have run the pixel test program that is available on this forum and i was wondering if i was using it in the right way
after running the program for a while i exit and look at the config file that ws made, it says that my response time is [email protected]
what is going on?
thx

Baddass · 19 Sep 2006 at 18:52

right, common misunderstanding with the program. What you need to do is load up the program and you will see two flashing blocks. At the top of the little window it tells you your "response time". Use the arrow keys on the keyboard to change it (i think up/down is by 1ms, and right/left is 10ms, or the other way round). Change the "repsonse time" until the two boxes are flashing are pretty much the same frequency. It looks like they are both pretty much on white boxes, and flashing very very fast....you'll probably find this is around 8ms I'd expect. Basically that is the ISO black > white response time of the screen.

Please note this is a very crude way of testing one transition on a TFT, and is no where near a very reliable way to see a response time. It doesn't take into account any G2G transitions either, but is fun to test black > white anyway

mcfly666 · 19 Sep 2006 at 21:05

Baddass said:
right, common misunderstanding with the program. What you need to do is load up the program and you will see two flashing blocks. At the top of the little window it tells you your "response time". Use the arrow keys on the keyboard to change it (i think up/down is by 1ms, and right/left is 10ms, or the other way round). Change the "repsonse time" until the two boxes are flashing are pretty much the same frequency. It looks like they are both pretty much on white boxes, and flashing very very fast....you'll probably find this is around 8ms I'd expect. Basically that is the ISO black > white response time of the screen.

Please note this is a very crude way of testing one transition on a TFT, and is no where near a very reliable way to see a response time. It doesn't take into account any G2G transitions either, but is fun to test black > white anyway

many thx buddy

hmm this program says my black to white time is 14ms? that cant be right can it?

VeNT · 19 Sep 2006 at 21:13

nm, found it.

Baddass · 19 Sep 2006 at 21:25

mcfly666 said:
many thx buddy
hmm this program says my black to white time is 14ms? that cant be right can it?

i'd expect somewhere in the region of 8ms to 14ms for a TN Film panel, so yes, it's probably a good indication. Remember though, this is ONLY the ISO black > white transition. Traditionally, before the days of overdrive, this was the fastest transition, but not any more....it's only showing you one transition, albeit the largest possible and so doesnt really give you an indication of a panels more common grey to grey transition or overall responsiveness

mcfly666 · 19 Sep 2006 at 21:54

Baddass said:
i'd expect somewhere in the region of 8ms to 14ms for a TN Film panel, so yes, it's probably a good indication. Remember though, this is ONLY the ISO black > white transition. Traditionally, before the days of overdrive, this was the fastest transition, but not any more....it's only showing you one transition, albeit the largest possible and so doesnt really give you an indication of a panels more common grey to grey transition or overall responsiveness

thank you for the reply's bud,it nice of you to clear things up a bit, but i'm dissapointed since ocuk advertised this as a 5m/s response screen

maybe the 5m/s time is for a transition that is not so hard to do?

Baddass · 19 Sep 2006 at 22:04

the 5ms response time of the Hanns-G is a grey to grey transition. In fact pretty much any screen listed below 8ms is measured on improved grey to grey transitions which that program will not test. Don't be worried about it, the ISO black > white transition has long since been at a brick wall of about 8ms- 14ms across TN Film panels, overdrive has allowed them to improve the much more important and more commonly needed g2g transitions