Part Type: T-Con Board LCD Controller Part Number: CPWBX4291TPZZ MFR Part Number 1: Sharp CPWBX4291TPZZ Board Number(s): KF331 XF331WJ 4291TP Known Models: SHARP LC-C5277UN LC-52E77UN LC-52SB57UN LC-52D85UN Panel Sticker Number: LK520D3LW9BZ R1LK520D3LW9BZ Panel Manufacturer: Sharp