Look at the type of the display.... it is on the white label on the back...
Then use google/yahoo for datasheet/pinout or at least the resolution.
15 tfts are usually 1024x768, 19 at least 1280x1024..the drive method SEEMS to be similar (I can not really judge because the poor quality).
You have to know the voltage of your display. I think you can measure the panel's.
This 15 coll TFT is from a notebook? Because it has only one tube connector? Or is it a double connector?
Summary: For the first sight it won't work, because you should have to modify the data in the microcontroller (or eeprom) of your panel forcing to display a different resolution...
I strongly believe, the panel is able to drive, but because the poor info about the chip, this project is sentenced to death.
Better to get a 19' or 17' display from a dead tft monitor, because the connector is standard (but check it carefully before buy!).