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：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.