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type A and type B waveforms

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banh

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hi,
what's the difference between type A and type B waveforms when driving LCD panel?
 

IanP said:
You will find the answer on pages 18-19 of this data sheet:
h**p://www.pacificdisplay.com/ics_app%20notes/sunplus/SPLC782av10.pdf
Click to expand...
]

thanks, but i still cannot get it..
 

Waveform A starts at Vss then goes to Vpp and ends with Vss with pulses between V4 and V1 every clock pulse, whereas waveform B has the same level across the duration of a frame with start and end pulses varying every second frame.
Also, pulse duration in waveform A is 1/2 (200 clock impulses) of the waveform B (400 clock impulses) ..
 

so, any advantage/disadvantage of one over the other?
 

actually, i am not really quite clear about this...

when the microcontroller supports both type of waveform, i can select any rite?
 

It depends entirely on the LCD you are using.
Read this: **broken link removed**

/Rambo
 

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