Hello!
Id you do it with an FPGA, then you could use a TFT with digital entries,
for instance like .
Note that this one is not VGA. It's an LCD similar to the Sony PSP LCD (same
size, same resolution), but with a touch panel.
I have made a signal generator for it in order to test it. But with a 8MHz MCU,
it's clearly not enough and the refresh rate was 4 frames per second.
I can tell you that if you follow approximately the timing, then it will work at
once.
By the way, some TFT don't have an external SYNC signal because the timing
is processed by an internal ASIC. That's the case of most of mobile phone
LCDs. In this case, you don't need an FPGA, you can just stuff bytes with
a microcontroller, and then the refresh is processed internally.
Take a look at .
It's not a TFT, it's a CSTN, but there are TFTs that work exactly the same way.
Dora.
alirez.m.f said:
Salaam Dora.
Thanks for your attention to my question and replying.
I am trying to design a VGA Controller with FPGA.
This board is going to reconstruct display signals (RGB and Syncs) for connecting to standard vga PC monitors But after the researches and designes, I have found that it could be better to add the design a TFT LCD and required hardwares for optional cases.
Now i don't know anything about TFT LCDs. I have seen that some TFT LCDs have analog input, others have digital ones. All have Sync signals. Are The TFT LCDs displays image like VGA?
Which Controller i must apply to drive a TFT LCD?
Do you know anything that could guide me to choose and apply any brand of a 800*600 RGB LCD and proper controller?
Thanks in advance Dora.
I hope that you would help me after Godd.
I believe that Godd sometimes helps his servants by means of the other persons.
Alireza