Hello,vahid,
(1) i.mx51
there are 2 parallel LCD interfaces on i.mx51, both support RGB24 , RGB666, RGB565.
(2)i.mx53
there are 2 LVDS ports(LVDS0 and LVDS1) and 2 parallel ports(DISP0 and DISP1, normally, we use DISP0)
(3)I.MX6
We have I.MX6SL, i.mx6s/dl/d/q, I.MX6SL is designed for E-book. i.mx6sl/dl/dq can be designed all-in-one board. they also support 2 LVDS ports(LVDS0 and LVDS1) and 2 parallel ports(DISP0 and DISP1, normally, we use DISP0).
Mode details, you can download their schematic from our website, you will find those interface I metioned above.
As for driver of LCD you will use, you should porting it to linux or android system according to your LCD spec, it is not difficult , you only need to add your LCD timing to our bsp.
Regards,
weidong