Patent ID: 9640594
Date: 2017-05-02
CPC Classifications: H01L

Claim:
1. A transparent organic light emitting display device comprising a pixel region on which an image is displayed and a transparent region through which external light passes, the device comprising: a first substrate; a second substrate opposing the first substrate; a display unit disposed between the first substrate and the second substrate, the display unit comprising an organic light emitting diode in the pixel region; a sealing unit disposed between the first substrate and the second substrate to surround the display unit and configured to bond the first substrate to the second substrate; a first photochromic layer disposed on at least one selected from the first substrate and the second substrate, a color of the first photochromic layer being changeable by exposure to the external light; and a filling unit disposed in an inner side of the sealing unit to cover the display unit, the filling unit comprising a silicon filling material and a photochromic material, a space between the first substrate and the second substrate being filled with the filling unit, wherein: the silicon filling material comprises a mixed material of a polydimethysiloxane and a hydrosilane; the photochromic material comprises at least one selected from a silver chloride (AgCI), a silver bromide (Ag Br), a silver iodide (Agl), and an oxazine; the organic light emitting diode comprises a pixel electrode, an emitting layer, and a common electrode; and the first photochromic layer at least partially overlaps the transparent region and does not overlap the emitting layer.