XO BW mode (was Re: Guidance sought on collaboration techniques)
bert at freudenbergs.de
Sat Feb 14 05:16:26 EST 2009
On 13.02.2009, at 19:27, Gary C Martin wrote:
> Note the backlight goes through the colour refractive screen magic,
> even in BW mode, so it's not as sharp as with the backlight 100% off
That explanation is horrendously wrong. Please do not perpetuate the
rumor of "modes" in the display hardware. There are none.
And, there is no "refractive screen magic", that idea did not make it
into production. The backlight uses regular r/g/b color filters.
The blur you see in color mode is the DCON performing anti-aliasing by
adding color components from the four neighboring pixels into each
pixel (e.g., for a red pixel it takes the red components of the
surrounding pixels into account, etc).
In early DCON drivers it was possible to toggle the anti-aliasing
independently of the backlight intensity, so you could clearly see its
effect. IIUC this capability has now been coupled to the backlight
intensity, which is fine in regular use, but takes away the
possibility to easily demonstrate what's happening.
- Bert -
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