| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic luminescent device combined with a photoluminescent material layer capable of having a comparatively large area. SOLUTION: A light source includes the organic luminescent device emitting light with a first spectrum and a phosphor layer emitting a second spectrum by absorbing part of the light emitted by an organic light-emitting layer. The organic luminescent device includes the organic light-emitting layer arranged between a pair of electrodes, and at least one charge blocking layer arranged between the organic light-emitting layer and one of the electrodes. The phosphor layer normally absorbs light less than the total amount of light emitted by the organic light-emitting layer, and normally covers the whole of the organic luminescent device. The light emitted from the organic light-emitting layer is mixed with the light emitted by the phosphor layer to produce light with a third spectrum. COPYRIGHT: (C)2011,JPO&INPIT |
