Patent ID: 8183769

Claim:
An organic electroluminescent display unit electrically connected to a scan line and a data line, comprising: at least one transistor electrically connected to the scan line and the data line; a first photo-sensor comprising a first reflective bottom electrode, a first photo-sensitive layer and a first transparent top electrode, wherein the first photo-sensitive layer is sandwiched between the first reflective bottom electrode and the first transparent top electrode; a second photo-sensor comprising a second reflective bottom electrode, a second photo-sensitive layer and a second transparent top electrode, wherein the second photo-sensitive layer is sandwiched between the second reflective bottom electrode and the second transparent top electrode, and the first photo-sensor is electrically connected to the second photo-sensor; a conductive layer comprising a reflective pixel electrode, a light-shielding pattern, and a connection pattern, wherein the reflective pixel electrode is electrically connected to the transistor, the light-shielding pattern is electrically connected to the second transparent top electrode and the light-shielding pattern entirely covers the second photo-sensitive layer, and the connection pattern is electrically connected to the first transparent top electrode, the first reflective bottom electrode, and the second reflective bottom electrode; an organic electroluminescent layer disposed on the reflective pixel electrode; and a cathode layer disposed on the organic electroluminescent layer.