Teac wide srceen is small and bent on sides

Question

hi i have a Teac 66cm wide screen TVmodel no.ctw28505 Serail no.5332533 200160the screen just went smaller and bent in wards on both sides?my mate told me look on the internet for codes to fix this problem but could not find any? one site said that teac are the same as LG tv's but what model is what ???? I am I on the write path and can you help me???...