Hi,
I've got some interesting information from Palmer Luckey (he's the one doing the Oculus VR). They are working on low-persistent displays (and doing many tests), and here is something we could try (if it's not too hard) to reduce the motion blur.
Can you see how quickly you can modulate the backlight between 100% and 0% brightness, and if you can tie it to display updates? If you can flash the display for a couple milliseconds at the end of each frame, you can drastically reduce motion blur from switching time and persistence. Nobody has ever made a low-persistence mobile device (And we are the first to do it in VR), so it would be quite a selling point!
I wonder if that would also work with Pandoras display, which has horrible motion blur / ghosting...
On Fri, Mar 14, 2014 at 3:11 AM, Michael Mrozek EvilDragon@openpandora.org wrote:
Hi,
I've got some interesting information from Palmer Luckey (he's the one doing the Oculus VR). They are working on low-persistent displays (and doing many tests), and here is something we could try (if it's not too hard) to reduce the motion blur.
Can you see how quickly you can modulate the backlight between 100% and 0% brightness, and if you can tie it to display updates? If you can flash the display for a couple milliseconds at the end of each frame, you can drastically reduce motion blur from switching time and persistence. Nobody has ever made a low-persistence mobile device (And we are the first to do it in VR), so it would be quite a selling point!
I wonder if that would also work with Pandoras display, which has horrible motion blur / ghosting...
I don't think that pandora's backlight is designed to be toggled 60 times per second, I suspect that could break it.
Besides, the backlight controller chip is connected to twl4030 PWM output, and for whatever reason the chip tends to misinterpret that PWM signal as digital control signal (the chip has pwm and digital control modes where digital mode uses some proprietary protocol). Because of that some long delays are used in the driver, so we can't even do it 60 times/second currently.
Gražvydas