公开(公告)号：US10297792B2

公开(公告)日：2019-05-21

申请号：US15690206

申请日：2017-08-29

Applicant: LG Display Co., Ltd.

Inventor： ChooJin Park ,  Ho-Won Choi ,  Eui-Doo Do ,  Sung-Bin Shim

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

Abstract: A display device including a micro-cavity structure and a method for forming the same is provided. The display device includes light-emitting structures on pixel areas. In the display device, each of the pixel areas may realize a color different from an adjacent pixel area. In the display device, each of the light-emitting structures may include a reflective electrode, a resonant layer and a transparent electrode, which are sequentially stacked. In the display device, a side surface of the resonant layer and a side surface of the transparent electrode of the light-emitting structure may be surrounded by an interlayer insulating layer. Thus, in the display device, the reliability and the production efficiency may be improved.

公开(公告)号：US10600849B2

公开(公告)日：2020-03-24

申请号：US15821443

申请日：2017-11-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung-Bin Shim ,  ChooJin Park

IPC: H01L29/18 ,  H01L33/00 ,  H01L27/32 ,  G09F9/33 ,  G09F9/35 ,  H01L51/52 ,  G02F1/1335 ,  G02F1/137 ,  G02F1/1362 ,  G02F1/1675 ,  G02F1/1676 ,  G02F1/167

Abstract: A display device is provided. The display device includes a changeable reflective structure having a first changeable electrode, a changeable reflecting layer and a second changeable electrode, which are sequentially stacked on an upper substrate opposite a lower substrate. In the display device, the reflectance of the changeable reflecting layer may be adjusted by controlling a voltage applied to the first changeable electrode and the second changeable electrode according to a state of a light-emitting structure which is disposed on an emitting area of the lower substrate. Thus, in the display device, a decrease of the color sense by the reflection of external light in a display state may be prevented, and the reflective area may have sufficient reflectance for serving as a mirror in a non-display state.

公开(公告)号：US11063245B2

公开(公告)日：2021-07-13

申请号：US16712214

申请日：2019-12-12

Applicant: LG Display Co., Ltd.

Inventor： ChooJin Park ,  Eui-Doo Do ,  Yongjae Kim ,  JiYoung Ahn ,  Dohong Kim

IPC: H01L51/52 ,  H01L27/32 ,  F21V8/00

Abstract: A display apparatus can include a substrate having a light emitting area, a light emitting device disposed at the light emitting area on the substrate, at least one light exiting area disposed in the light emitting area, a light blocking layer disposed at the light emitting area and overlapping the at least one light exiting area, and a light guide part disposed at the light emitting area and configured to guide light generated in the light emitting device to the at least one light exiting area.

公开(公告)号：US11678526B2

公开(公告)日：2023-06-13

申请号：US16899191

申请日：2020-06-11

Applicant: LG Display Co., Ltd.

Inventor： ChooJin Park ,  Hye-Sook Kim ,  Moon-Bae Gee

IPC: H10K59/123 ,  G02F1/00

CPC classification number: H10K59/123 ,  G02F1/0063 ,  G02F2203/02 ,  G02F2203/22

Abstract: A display device includes a lower substrate and an upper substrate opposite the lower substrate; a lower electrode on the lower substrate; a bank insulating layer on the lower substrate, the bank insulating layer covering an edge of the lower electrode; a light-emitting layer on a surface of the lower electrode exposed by the bank insulating layer; an upper electrode on the light-emitting layer; a reflective pattern on the upper substrate, the reflective pattern overlapping with the bank insulating layer; and a half-mirror layer on a surface of the upper substrate exposed by the reflective pattern.

公开(公告)号：US10720480B2

公开(公告)日：2020-07-21

申请号：US15793788

申请日：2017-10-25

Applicant: LG Display Co., Ltd.

Inventor： ChooJin Park ,  Hye-Sook Kim ,  Moon-Bae Gee

IPC: G02B26/00 ,  G02B26/08 ,  G02F1/29 ,  H01L27/32 ,  G02F1/00

Abstract: A display device serving as a mirror in a non-display state is provided. The display device may include a reflective pattern and a half-mirror layer which are disposed on an upper substrate opposite to a lower substrate. The half-mirror layer may be disposed side by side with the reflective pattern. Thereby, a discontinuous appearance of the reflective image may be reduced, and the degradation of the reflective image due to the diffraction of the light may be prevented or reduced.

公开(公告)号：US10157968B2

公开(公告)日：2018-12-18

申请号：US15381718

申请日：2016-12-16

Applicant: LG DISPLAY CO., LTD.

Inventor： ChooJin Park ,  Sung-Bin Shim ,  Hye-Sook Kim ,  Moon-Bae Gee

IPC: H01L51/52 ,  H01L27/32 ,  H01L25/04

Abstract: A display device according to an embodiment can include a plurality of pixel areas disposed on a lower substrate, each pixel area including a plurality of sub-pixel areas for displaying images. The display device further includes a plurality of light emitting structures disposed respectively in the sub-pixel areas of each pixel area and configured to output at least one color light, a plurality of color filters disposed correspondingly to the light emitting structures and configured to convert the at least one color light output from the light emitting structures into different color lights, and a white light emitting structure configured to output white color light, wherein the white light emitting structure covers all the light emitting structures and the color filters.

公开(公告)号：US20180151640A1

公开(公告)日：2018-05-31

申请号：US15821443

申请日：2017-11-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung-Bin SHIM ,  ChooJin Park

IPC: H01L27/32 ,  G02F1/167 ,  G02F1/137 ,  G02F1/1335 ,  H01L51/52

Abstract: A display device is provided. The display device includes a changeable reflective structure having a first changeable electrode, a changeable reflecting layer and a second changeable electrode, which are sequentially stacked on an upper substrate opposite a lower substrate. In the display device, the reflectance of the changeable reflecting layer may be adjusted by controlling a voltage applied to the first changeable electrode and the second changeable electrode according to a state of a light-emitting structure which is disposed on an emitting area of the lower substrate. Thus, in the display device, a decrease of the color sense by the reflection of external light in a display state may be prevented, and the reflective area may have sufficient reflectance for serving as a mirror in a non-display state.