4 ms·
The inertia of the e ink itself is the low pass filter, i think.
by lagrange77 4y ago
The inertia of the e ink itself is the low pass filter, i think.
- db48x 4y agoThat’s just not a useful analogy.
- lagrange77 4y agoIt wasn't meant as an analogy. Am i wrong in that the mass of the ink particles is the root cause for the low refresh rate of i ink displays?
- db48x 4y agoI have no idea why these displays are so slow, but the concept of a “low–pass filter” just doesn’t apply here.
- lagrange77 4y agoOkay, now an analogy: Imagine a container vessel and a rowboat. Which of them is more stable, when you alternate their steering angle with a high frequency?
- nomel 4y agoAt this point I would say your incorrect. The e-ink is acting as a temporal low pass filter, for the desired signal that is the brightness of that pixel. Perhaps you’re thinking of a spatial low pass filter?
- TT-392 4y agoI thought it was useful
- _dh54 4y agoIt's not an analogy. It's literally what is happening. This is apparent by your own admission that each pixel displayed is an average of the last eight frames of that pixel. That is the definition of a convolution filter. The display acts as a physical convolution filter, which is implementing a low-pass filter.