公开(公告)号：WO2005076753A3

公开(公告)日：2005-10-06

申请号：PCT/JP2005003080

申请日：2005-02-18

Applicant: SONY CORP ,  KIJIMA YASUNORI ,  SHIBANUMA TETSUO ,  MATSUNAMI SHIGEYUKI ,  TOMO YOICHI

Inventor： KIJIMA YASUNORI ,  SHIBANUMA TETSUO ,  MATSUNAMI SHIGEYUKI ,  TOMO YOICHI

IPC: C09K11/06 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H05B33/12 ,  H05B33/14 ,  H05B33/22

CPC classification number: H01L51/5278 ,  H01L27/322 ,  H01L51/5234 ,  H01L2251/5315

Abstract: Disclosed is an easily-produced stack display element wherein light-emitting units respectively comprising an organic layer are stacked on top of one another. By using a stable material for at least a part of a charge-generating layer in such a display element, the display element can be improved in environmental resistance and charge injection efficiency from the charge-generating layer to the light-emitting units. Specifically disclosed is a display element (11) wherein a plurality of light-emitting units (14-1, 14-2) comprising at least an organic light-emitting layer (14c) are arranged between a cathode (16) and an anode (13), and a charge-generating layer (15) is interposed between the light-emitting units (14-1, 14-2). At least a part of the charge-generating layer (15) is composed of an oxide or fluoride containing at least either of an alkali metal and an alkaline earth metal.

Abstract translation: 公开了一种容易制造的堆叠显示元件，其中分别包括有机层的发光单元彼此堆叠。 通过在这样的显示元件中使用用于电荷产生层的至少一部分的稳定材料，可以改善显示元件的环境抵抗力和从电荷产生层到发光单元的电荷注入效率。 具体而言，公开了一种显示元件（11），其中包括至少一个有机发光层（14c）的多个发光单元（14-1,14-2）被布置在阴极（16）和阳极 13），并且电荷产生层（15）插入在发光单元（14-1,14-2）之间。 电荷产生层（15）的至少一部分由含有碱金属和碱土金属中的至少一种的氧化物或氟化物构成。