I merged my posts about this hold time Richard and I are talking about into post #65.
I find it's easier for people to understand if they read it for the first time to merge posts that way.
Anyway, here is my reply to Richard's previous reply to me.
Originally Posted by Richard Paul
Do you have any evidence that this is a valid test to analyze the amount of 3D crosstalk for a display? The ability for a person to detect the flicker of a black image during white color video may have little to no relation to 3D crosstalk which is why I am asking for evidence that this is a valid test for 3D crosstalk. If this is merely an assumption you have than aren't you trying to prove your previous assumptions with a test based on another assumption?
(1) "In Figure 5, it can be seen that from 0 to 17ms the left eye of the LCS glasses is transmissive and the right eye of the LCS glasses is opaque.
At about 17ms, the LCS glasses switch from one state to the other, and in the example of Figure 5 the afterglow of the phosphors is still decaying from the first field,
hence light from the left eye image will leak into the right eye producing crosstalk."
(2) "The rise time from all gray level to
black is very fast, < 0.26ms (Fig.4). This means display image
can be resetted immediately and it make no influence to next
image. In this case very small 3D crosstalk is achieved."
(3) "The more BFI that was selected, the dimmer the display became."
(4) "The slower response of LC shall
cause the 3D crosstalk and the loss of luminance."
page 7, section 3.4
page 6, section 2.2
page 4, section 5.1
page 5, section 2.2
Summary. The crosstalk and loss of luminance (1), is due to slow lc response time (4).
A sympotom of slow lc is a noticably dimmer display (3).
The speed of the display makes the crosstalk less noticable and the loss of luminance less noticable, because the black screen shown is less noticable because it disappears very fast (2).
What this tells me is that: if the black seen in the videos I made are noticable or not, it is because the black screen is less noticable due to disappearing very fast.
This is similar to the fast lc response time made the black screen less noticable (2).
By fast lc response time they mean the speed comparable to lcd's refresh time.