Patent ID: 7498738
Filing Date: 2009-03-03
Classification: H01L

Abstract:
1. An organic EL panel comprising a plurality of organic EL elements each including an organic layer provided between first and second electrodes and emitting light when a voltage is applied between the first and second electrodes to allow a current to flow in the organic layer, wherein the first electrode includes a semi-transmissive layer which reflects light emitted from the organic layer; the second electrode includes a reflective layer for reflecting light emitted from the organic layer; an interval between the reflective layer and the semi-transmissive layer is configured to have a predetermined optical length, such that, when light generated in the organic layer is repetitively reflected between the reflective layer and the semi-transmissive layer, the interval between the reflective layer and the semi-transmissive layer functions as a microresonator which intensifies and selects light having a specific wavelength and ejects the selected light through the semi-transmissive layer; a light-shielding film which shields light ejected from the microresonator is provided in a position corresponding to a portion of the microresonator having a non-uniform optical length; the plurality of organic EL elements are formed on a substrate, and a plurality of thin film transistors for controlling supply of current to the plurality of organic EL elements are provided on the substrate; the thin film transistors and the first electrode are connected via contact holes; the portion of the microresonator having non-uniform optical length is generated by the existence of the contact hole; the light shielding is structured to shield light that goes through the portion of the microresonator having non-uniform optical length; and the light shielding film is superposed on the contact holes.