Hi,
We have an instrument with a 18 bit resolution LCD ET057090DHU (Parallel RGB666 interface )
As the current driver is going to obsolete soon, we try to change it to use HDMI port connect to TFP401A then to the display.
As TFP401A has 24 bits output and the LCD has 18 bits, the connection is set as below:
TFP401A R2-R7 connect to LCD R0 to R5
TFP401A G2-G7 connect to LCD G0 to G5
TFP401A B2-B7 connect to LCD B0 to B5
With the above connection, the picture quality is not as good as the original one.
From my understanding, TFP401A decode HDMI to 24 bit resolution, if the bit0 and bit1 are not connected, there are definitely will have some information missing.
Could you please let me know if this is the best we can get? Is there any way to make use of bit0 and bit1 to improve the picture's quality?
Thanks and regards,
Jenny
