A touch display apparatus includes a touch electrode structure and a display assembly. The touch electrode structure senses touch operations on the touch display apparatus. The display assembly displays images of the touch display apparatus. The display assembly includes a polarizer, a first substrate, a color filter, and a second substrate, arranged in that order. The touch electrode structure is sandwiched between the polarizer and the first substrate. The touch electrode structure comprises a first sensing electrode layer. The first sensing electrode is formed on a surface of the first substrate opposite to the color filter.