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 Posted: Tue Oct 20, 2009 5:35 am |
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Guest
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I was wondering if these cheap digital photo displays could
render text, cost effectively, and I realised that I don't really
know how text is rendered on an LCD display.
I'm guessing, working from the display backwards:-
- How often is a non-changing display refreshed,
and this would be done by a chip that's dedicated to the LCD,
updating all the pixels of the display?
- So that's 4 * 48* 600 bits for a 16 colour VGA display ?
- What are typical resolutions for these 4 to 6 inch photo-displays?
- the line of text would be encoded char-by-char to H-lines of
pixels, where H is the pixel-height of the char-font ?
Obviously the whole line of chars must be built before it's sent.
- and then shifted into the 'dedicated LCD driver' ?
- is it fed in 8-bits wide or what ?
- what knd of signal do video DVD players output: analogue
composite, or what ?
- So you get: [char-line] -> [pixel-block] -> [display-driver]
Can someone point me to a good online tutor ?
== TIA |
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| DenverD... |
| Posted: Tue Oct 20, 2009 10:52 am |
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Quote: Can someone point me to a good online tutor ?
www.google.com
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Duh |
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| jellybean stonerfish... |
| Posted: Tue Oct 20, 2009 11:47 am |
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On Tue, 20 Oct 2009 15:35:12 +0000, no.top.post wrote:
Quote: I was wondering if these cheap digital photo displays could render text,
cost effectively, and I realised that I don't really know how text is
rendered on an LCD display.
Render the text to a jpg, and send it to the device as a picture. |
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| Dan C... |
| Posted: Tue Oct 20, 2009 8:36 pm |
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Guest
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On Tue, 20 Oct 2009 15:35:12 +0000, no.top.post wrote:
<snip>
What the fuck does any of that have to do with Linux?
Bugger off, troll.
--
"Ubuntu" -- an African word, meaning "Slackware is too hard for me".
"Bother!" said Pooh, as he garotted another passing Liberal.
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