公开(公告)号：US11362161B2

公开(公告)日：2022-06-14

申请号：US16823119

申请日：2020-03-18

Applicant: Samsung Display Co., Ltd.

Inventor： Young In Hwang ,  Ji Hye Kong ,  Suk Hoon Ku ,  Sung Wook Kim ,  Jin A Lee ,  Yun Sik Joo

IPC: H01L27/32 ,  G09G3/3233 ,  H01L29/786 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12

Abstract: A display device includes pixels. Each of the pixels includes: a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node; a second transistor including a gate electrode connected to a first scan line, a first electrode connected to a data line, and a second electrode connected to the second node; a first sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the first node, and a second electrode connected to a fourth node; and a second sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the fourth node, and a second electrode connected to the third node. A channel width of the second sub-transistor is wider than a channel width of the first sub-transistor.

公开(公告)号：US10581023B2

公开(公告)日：2020-03-03

申请号：US16136120

申请日：2018-09-19

Applicant: Samsung Display Co., Ltd.

Inventor： Myeong Suk Kim ,  Sung Wook Kim ,  Chang Woong Chu ,  Jin Soo Hwang ,  Sang Hoon Yim

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32

Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.

公开(公告)号：US10084157B2

公开(公告)日：2018-09-25

申请号：US15455996

申请日：2017-03-10

Applicant: Samsung Display Co., Ltd

Inventor： Myeong Suk Kim ,  Sung Wook Kim ,  Chang Woong Chu ,  Jin Soo Hwang ,  Sang Hoon Yim

IPC: H01L27/00 ,  H01L51/52 ,  H01L27/32 ,  H01L51/50

CPC classification number: H01L51/5284 ,  H01L27/3206 ,  H01L27/3211 ,  H01L51/504 ,  H01L51/5253 ,  H01L51/5265

Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.

公开(公告)号：US20170294628A1

公开(公告)日：2017-10-12

申请号：US15481082

申请日：2017-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Hoon Kim ,  Sang Hoon Yim ,  Kwan Hee Lee ,  Myeong Suk Kim ,  Sung Wook Kim ,  Chang Woong Chu ,  Jin Soo Hwang

IPC: H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  C07C211/58 ,  C07D209/86 ,  C07D307/91 ,  C07C211/54 ,  C07D333/76 ,  H01L51/50 ,  C09K11/06

CPC classification number: H01L51/5284 ,  C07C211/54 ,  C07C211/58 ,  C07C2603/18 ,  C07D209/86 ,  C07D307/91 ,  C07D333/76 ,  C09K11/06 ,  H01L27/3262 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0097 ,  H01L51/504 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5253 ,  H01L51/5275 ,  H01L2251/5338 ,  Y02E10/549

Abstract: A light emitting diode according to an exemplary embodiment of the present invention includes: a first electrode; a second electrode overlapping the first electrode; an emission layer disposed between the first electrode and the second electrode; and a capping layer disposed on the second electrode, wherein the capping layer satisfies Equation 1 below. n*k(λ=405 nm)≦0.8.  Equation 1 In Equation 1, n*k (λ=405 nm) represents an optical value that is a product of a refractive index and an absorption coefficient in a 405 nanometer wavelength.