公开(公告)号：US20150060757A1

公开(公告)日：2015-03-05

申请号：US14471713

申请日：2014-08-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dong-gu LEE ,  Shang-hyeun PARK ,  Yong-chul KIM ,  Chang-soo LEE ,  Do-yoon KIM

IPC: H01J1/308 ,  H01J9/02 ,  H01J1/304

CPC classification number: H01J9/025 ,  H01J1/3046 ,  H01J35/065 ,  H01J2201/30423 ,  H01J2201/30461

Abstract: A field emission device may comprise: an emitter comprising a cathode electrode and an electron emission source supported by the cathode electrode; an insulating spacer around the emitter, the insulating spacer forming an opening that is a path of electrons emitted from the electron emission source; and/or a gate electrode comprising a graphene sheet covering the opening. A method of manufacturing a gate electrode may comprise: forming a graphene thin film on one surface of a conductive film; forming a mask layer having an etching opening on another surface of the conductive film, wherein the etching opening exposes a portion of the conductive film; partially removing the conductive film through the etching opening to partially expose the graphene thin film; and/or removing the mask layer.

Abstract translation: 场发射器件可以包括：发射器，包括阴极电极和由阴极电极支撑的电子发射源; 围绕发射极的绝缘间隔物，绝缘间隔物形成作为从电子发射源发射的电子的路径的开口; 和/或包括覆盖该开口的石墨烯片的栅电极。 制造栅电极的方法可以包括：在导电膜的一个表面上形成石墨烯薄膜; 在所述导电膜的另一表面上形成具有蚀刻开口的掩模层，其中所述蚀刻开口暴露所述导电膜的一部分; 通过蚀刻开口部分去除导电膜以部分地暴露石墨烯薄膜; 和/或去除掩模层。

公开(公告)号：US20170251243A1

公开(公告)日：2017-08-31

申请号：US15441395

申请日：2017-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-gu LEE ,  Yeon-woo KIM ,  Young-jin LEE ,  Jae-hyun LEE

IPC: H04N21/438 ,  H04N21/426 ,  H04N21/462

Abstract: Provided is an image display apparatus including: a communicator configured to receive, from a server, information about an integrated frequency band corresponding to a region where the image display apparatus is located; a display; a processor; a memory; and at least one program stored in the memory and executed by the processor, wherein the at least one program comprises instructions for scanning channels included in the integrated frequency band for a channel receivable by the image display apparatus, and displaying a result of the scanning on the display, and the integrated frequency band is a frequency band determined based on frequency bands receivable by other image display apparatuses located in the same region as the image display apparatus.