公开(公告)号：US12302732B2

公开(公告)日：2025-05-13

申请号：US17518147

申请日：2021-11-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungkook Jang ,  Seungryong Lee ,  Wonrae Kim ,  Seungcheol You ,  Dabin Kim

IPC: H10K59/38 ,  C09K11/88 ,  G02B5/20 ,  H01L27/15 ,  H01L33/50 ,  H10K50/854 ,  H10K59/12

Abstract: Discussed is a color filter structure for converting a wavelength of light emitted from a light-emissive element. The color filter structure includes a light-conversion layer containing a first resin and quantum dots dispersed in the first resin, wherein each quantum dot has a core/shell structure. The color filter structure further includes a light-absorbing layer stacked on the light-conversion layer, wherein the light-absorbing layer contains a second resin and semiconductor nano-particles dispersed in the second resin. The semiconductor nano-particles absorb light emitted from the light-emissive element. Accordingly, the color filter structure improves color purity and luminance of the emitted light.

公开(公告)号：US12249617B2

公开(公告)日：2025-03-11

申请号：US17528762

申请日：2021-11-17

Applicant: LG DISPLAY CO., LTD

Inventor： Seungcheol You ,  Wonrae Kim ,  SeungBum Lee

IPC: H01L27/15 ,  H01L33/10 ,  H01L33/50

Abstract: A display apparatus includes a display panel on which a plurality of pixels are displayed, a plurality of signal lines to which a signal required to drive the display panel is supplied, and an electrostatic discharge circuit connected between each of the plurality of signal lines and the electrostatic discharge line, and the electrostatic discharge circuit includes first and second current paths between the signal line and the electrostatic discharge line, a first electrostatic discharge circuit connected to the first current path, including a plurality of first thin film transistors having a first gate electrode connected to the second current path and a second gate electrode connected to the first current path, and a second electrostatic discharge circuit connected to the second current path, including at least one second thin film transistor having a first gate electrode connected to the first current path and a second gate electrode connected to the first current path.

公开(公告)号：US20220199692A1

公开(公告)日：2022-06-23

申请号：US17518147

申请日：2021-11-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungkook Jang ,  Seungryong Lee ,  Wonrae Kim ,  Seungcheol You ,  Dabin Kim

IPC: H01L27/32 ,  G02B5/20 ,  H01L33/50 ,  H01L27/15 ,  H01L51/52 ,  C09K11/88

Abstract: Discussed is a color filter structure for converting a wavelength of light emitted from a light-emissive element. The color filter structure includes a light-conversion layer containing a first resin and quantum dots dispersed in the first resin, wherein each quantum dot has a core/shell structure. The color filter structure further includes a light-absorbing layer stacked on the light-conversion layer, wherein the light-absorbing layer contains a second resin and semiconductor nano-particles dispersed in the second resin. The semiconductor nano-particles absorb light emitted from the light-emissive element. Accordingly, the color filter structure improves color purity and luminance of the emitted light.

公开(公告)号：US11800773B2

公开(公告)日：2023-10-24

申请号：US17384231

申请日：2021-07-23

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Younghoon Kim ,  Jungmin Yoon ,  Seungcheol You

IPC: H01L51/52 ,  H10K59/38 ,  H10K50/84 ,  H10K59/123 ,  H10K59/35

CPC classification number: H10K59/38 ,  H10K50/84 ,  H10K59/123 ,  H10K59/351 ,  H10K59/352 ,  H10K59/353

Abstract: An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2×2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.

公开(公告)号：US20220069015A1

公开(公告)日：2022-03-03

申请号：US17384231

申请日：2021-07-23

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Younghoon Kim ,  Jungmin Yoon ,  Seungcheol You

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2×2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.