公开(公告)号：US11551902B2

公开(公告)日：2023-01-10

申请号：US17367523

申请日：2021-07-05

申请人： SHARP KABUSHIKI KAISHA

发明人： Kohji Shinkawa ,  Tadashi Iwamatsu ,  Tomohiro Kosaka ,  Kazuya Tsujino ,  Reshan Maduka Abeysinghe

IPC分类号： H01J1/312 ,  H01J29/96

摘要： This electron emitting element includes a lower electrode, a surface electrode facing the lower electrode, a resistance layer arranged between the lower electrode and the surface electrode, and an insulating layer arranged between the lower electrode and the surface electrode. The resistance layer is an insulating resin layer containing conductive fine particles in a dispersed state. The insulating layer has a peripheral region for defining the electron emission region, and an emission control region which is arranged so as to overlap the electron emission region defined by the peripheral region. The emission control region is configured by a line-shaped insulating layer, a plurality of dot-shaped insulating layers, or both a line-shaped insulating layer and a plurality of dot-shaped insulating layers. The percentage of an area that the emission control region represents within an area of an electron emission region defined by the peripheral region is 2% or more and 60% or less.

公开(公告)号：US11205555B2

公开(公告)日：2021-12-21

申请号：US17103316

申请日：2020-11-24

申请人： SHARP KABUSHIKI KAISHA

发明人： Kohji Shinkawa ,  Tadashi Iwamatsu ,  Kazuya Tsujino ,  Reshan Maduka Abeysinghe ,  Tomohiro Kosaka

IPC分类号： H01J1/30 ,  H01J9/02

摘要： An electron emission element of the present invention includes a lower electrode, a surface electrode, and a silicone resin layer disposed between the lower electrode and the surface electrode, wherein the surface electrode includes a silver layer, and the silver layer is in contact with the silicone resin layer.