guangyu, sorry I do not know the exact brand/manufacturer of the board. I searched the part number (P/N) on ebay and bought it off somebody with the exact same part (usually they have a non-functional TV and are selling functional parts on ebay). I found the part number by opening up my TV.
No I did not have similar symptoms. My TV was good for 13months, and no picture the day after. I do want to make wild guesses... but something that works after warming up might have to do with a bad connection or a dying piece of hardware on the board...
(Also, I did not have issues with the ribbon cable connection. The ribbon cable is the very flimsy thin strip of the signal lines that connects the T-con board to the LCD panel. There are two of them. I used the old pair.)
Yes, the T-con board fixed the symptoms I have. The TV is still working perfectly today. I just opened up the TV, copied the board part number, and bought a used part off ebay. Good luck!
