公开(公告)号：US20190036078A1

公开(公告)日：2019-01-31

申请号：US16044041

申请日：2018-07-24

Applicant: Futaba Corporation

Inventor： Takahiro NIIYAMA ,  Shinji IDE ,  Mitsufumi KODAMA ,  Shingo KAMINAGA

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic EL display device includes a first substrate, a frame-shaped sealing layer disposed along an edge of the first substrate, a second substrate, an organic EL element portion disposed in a sealed space surrounded with the first substrate, the sealing layer, and the second substrate, and a filler that fills the sealed space. The filler has a first filler that includes a powdered drying agent, and is in contact with the sealing layer on an inside of the sealing layer, and a second filler that is in contact with the first filler on an inside of the first filler. At least an area overlapping the organic EL element portion is filled with the second filler.

公开(公告)号：US20210286110A1

公开(公告)日：2021-09-16

申请号：US17191137

申请日：2021-03-03

Applicant: Futaba Corporation

Inventor： Satoshi NOGUCHI ,  Youhei FUJIMURA ,  Takahiro NIIYAMA

IPC: G02B5/02

Abstract: In a display device according to the present disclosure, a reflective film surrounding a display region reflects the light from outside from a lower surface side of an element substrate in the same manner as a metal electrode layer of a light emitting display portion covering the display region. Due to reflection occurring in the same manner on an inner side and an outer side of a contour of the display region, the contour of the display region is unlikely to be visually recognized.

公开(公告)号：US20180375062A1

公开(公告)日：2018-12-27

申请号：US16003116

申请日：2018-06-08

Applicant: Futaba Corporation

Inventor： Shinji IDE ,  Takahiro NIIYAMA ,  Mitsufumi KODAMA

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5253 ,  H01L27/3283 ,  H01L51/5246 ,  H01L51/56 ,  H01L2251/5392

Abstract: A display device includes a first substrate, a sealing layer located along an edge of the first substrate, a second substrate coupled with the first substrate via the sealing layer, a display part located on the second main surface and within a sealed space, and a filler filling the sealed space and including a particle solid drying agent dispersed therein. The display part includes an organic EL element located on the second substrate, the organic EL element including a first electrode, an organic EL layer, and a second electrode stacked in order from the second substrate. Additionally, the display part includes an organic sacrifice layer located on and in contact with the second electrode, and a first inorganic protective layer located on and in contact with the organic sacrifice layer. The filler is located between the first inorganic protective layer and the first substrate.