Thanks,
Finally, I can display image normally. However, the color palette when configured as RGB24 is very poor, even more limited than the 16-color palette of the development board.
My product board and cpuInfo.

My development board and its cpuInfo .

They are using same LCD displayer, same QT environment version and same application. I doubt there must be some parameters which hasn't been noticed yet that hasn't been configure well. More bootup detail log please check attached file out.
uboot update code




kernel update code

