Patent ID: 8625055

Claim:
An organic light emitting display device comprising: a substrate having a transmitting region and pixel regions, adjacent pairs of the pixel regions being separated from each other by a corresponding portion of the transmitting region interposed between the pixel regions; thin film transistors formed on a first surface of the substrate in respective ones of the pixel regions; a passivation layer covering the thin film transistors; pixel electrodes disposed on the passivation layer; an opposite electrode disposed to face the pixel electrodes and configured to transmit light; an organic emission layer disposed between the pixel electrodes and the opposite electrode and configured to emit light; and a polymer dispersed liquid crystal (PDLC) device disposed such that the thin film transistors are between the PDLC device and the passivation layer and disposed in an area corresponding to the transmitting region, the PDLC device comprising: a first electrode; a second electrode; and a PDLC layer having liquid crystal dispersed in a polymer matrix, wherein voltages of different polarities are applied to the first electrode and the second electrode, respectively, to form an electric field, wherein the PDLC device is insulated from the thin film transistors, wherein each of the pixel electrodes are electrically connected to and formed substantially directly above a corresponding one of the thin film transistors, and wherein each of the pixel electrodes is formed only in the corresponding pixel region, wherein the pixel electrodes are separated from each other, and wherein the second electrode is formed as a pattern to correspond to the transmitting region and not to correspond to the pixel regions.