EngineersForge
Technical User
I am looking for LCD modules about 64 x 128 pixel that have fast refresh rates. If anyone knows of any, especially if they have the SED1565 driver, could ;you let me know?
Thx,
MK
Thx,
MK
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LCD with fast refresh rate?
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I don't believe LCD monitors have a refresh rate specification - the technology used is much different between the two. Instead, it's referred to as "response time", which doesn't need to be as high as a CRT's. Typically a setting of 60Hz is more than adequate for an LCD.
Check this article:
~cdogg
[tab]"All paid jobs absorb and degrade the mind";
[tab][tab]- Aristotle
[tab][navy]For general rules and guidelines to get better answers, click here:[/navy] faq219-2884
Check this article:
~cdogg
[tab]"All paid jobs absorb and degrade the mind";
[tab][tab]- Aristotle
[tab][navy]For general rules and guidelines to get better answers, click here:[/navy] faq219-2884
DragonQ0105
Technical User
With LCD Monitors (Digital), the little Liquid Crystals are either On/Off, whereas CRT Monitors (Analogue) use photons fired at the screen.
So with CRT Montiors, the refresh rate determines the flicker. With LCD, there is no flicker when the display stays the same (e.g. sitting at the desktop), whereas with a CRT Display, the Photons must be continually fired even when the screen isn't changing.
So with LCD, refresh rate doesn't do anything. Response Time is how long it takes to change a Liquid Crystal's colour - typically 25ms, but more expensive monitors can be as low as 8ms. I have a 15ms 17" AG-F417 which I got for only £220!
Why do you need such a high refresh rate?
So with CRT Montiors, the refresh rate determines the flicker. With LCD, there is no flicker when the display stays the same (e.g. sitting at the desktop), whereas with a CRT Display, the Photons must be continually fired even when the screen isn't changing.
So with LCD, refresh rate doesn't do anything. Response Time is how long it takes to change a Liquid Crystal's colour - typically 25ms, but more expensive monitors can be as low as 8ms. I have a 15ms 17" AG-F417 which I got for only £220!
Why do you need such a high refresh rate?
Not experienced enough to feel comfortable responding but...
What I have done is to "restore down" a window with text on it (just fill any text editor with gibberish) and simply drag it around a desktop.
Not a definitive test by any means but you can easily rule out the worse ones by watching for a slow 'response time'.
Drew,
What I have done is to "restore down" a window with text on it (just fill any text editor with gibberish) and simply drag it around a desktop.
Not a definitive test by any means but you can easily rule out the worse ones by watching for a slow 'response time'.
Drew,
Something around 16ms would be more that sufficient for normal office apps etc.
Micro Direct are selling this at the moment
Micro Direct are selling this at the moment
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