Transparent display apparatus and driving method thereof

A method for driving a transparent display device, the method comprising:

• extracting a corneal reflection image comprising a target image projected on a cornea of a user through a display area of a transparent display panel and a display image, wherein the transparent display panel comprises the display area which displays the display image and transmits light reflected from a background, and a non-display area adjacent to the display area;
• generating a flat target image by correcting the corneal reflection image distorted by a curved shape of the cornea;
• generating a background image by removing the display image from the flat target image;
• and
• displaying the background image on the transparent display panel,
• wherein the transparent display panel comprises gate lines and data lines intersecting with and insulated from each other, and
• wherein the transparent display device further comprises a data driver configured to receive the background image and the display image and output a data voltage to the data lines.