Patent ID: 8854578

Claim:
A display apparatus, comprising: a first substrate including a pixel region and a transmitting region adjacent to the pixel region defined thereon, the pixel region including pixels and emitting light in a first direction and the transmitting region transmitting external light; a second substrate that faces the first substrate and seals pixels defined on the first substrate; an optical filter arranged on a first side of the display apparatus through which light is emitted, the optical filter being configured to transmit circularly polarized light that rotates in a predetermined direction; and an optical reflectance conversion device arranged on a second side of the display apparatus, opposite the first side, the optical reflectance conversion device being configured to change a reflectance of the external light according to modes of operation of the display apparatus, wherein a pixel of the pixels includes: a pixel circuit unit in the pixel region on the first substrate, the pixel circuit unit including at least one thin-film transistor, a first electrode electrically connected to the pixel circuit unit, a second electrode facing the first electrode, an organic film between the first electrode and the second electrode, and a pixel define layer between peripheral portions of the first and second electrodes, the pixel circuit, the first electrode, the second electrode, the organic film, and the pixel define layer being located only in the pixel region among the pixel and transmitting regions.