公开(公告)号：KR1020040022309A

公开(公告)日：2004-03-12

申请号：KR1020020053452

申请日：2002-09-05

Applicant: 한국전자통신연구원

Inventor： 박래만 ,  김상협 ,  성건용

IPC: H05B33/22

CPC classification number: H05B33/22

Abstract: PURPOSE: A high efficiency luminescence device with a cover layer of a high index of refraction is provided to improve high luminous efficiency even if the same material is used as a luminescence layer, by increasing photoabsorption of the luminescence layer in a different method than the conventional method. CONSTITUTION: The luminescence layer(40) is interposed between two electrodes. The ratio of the light reflected to the inside of the luminescence device is increased to improve photoabsorption of the luminescence layer so that a photo generation rate in the luminescence layer is increased. A high refraction material having an index of refraction higher than that of the luminescence layer is stacked on the luminescence device to form the cover layer(70).

Abstract translation: 目的：提供具有高折射率的覆盖层的高效率发光装置，以便即使使用相同的材​​料作为发光层，通过以与常规的不同的方法增加发光层的光吸收来提高发光效率 方法。 构成：发光层（40）介于两个电极之间。 反射到发光器件内部的光的比率增加，以改善发光层的光吸收，使得发光层中的光生成速率增加。 将具有比发光层的折射率高的折射率高的折射材料堆叠在发光装置上以形成覆盖层（70）。