13. The display apparatus according to claim 12 , wherein the first attribute value of the font effect comprises at least one of a thickness of the font effect, a position of the font effect and a color of the font effect, and the controller is configured to identify the first attribute value of the font effect according to the size of the character.
13. The display apparatus according to claim 12 , wherein the first attribute value of the font effect comprises at least one of a thickness of the font effect, a position of the font effect and a color of the font effect, and the controller is configured to identify the first attribute value of the font effect according to the size of the character. 14. The display apparatus according to claim 13 , wherein the controller is configured to, in response to the font effect comprising a stroke effect of adding a rim to the character, determine a thickness value of the stroke effect such that a thickness of the rim increases as the size of the character increases, and the thickness of the rim decreases as the size of the character decreases.