公开(公告)号：US20200183234A1

公开(公告)日：2020-06-11

申请号：US16702473

申请日：2019-12-03

Applicant: LG Display Co., Ltd.

Inventor： Donghwi KIM ,  KiSeong KIM ,  HyeokJoon YOON ,  SeungJu GWON

IPC: G02F1/1335

Abstract: In an embodiment, a backlight unit includes a light-emitting device and lower reflector on a substrate. The lower reflector has a hole that accommodates and exposes the light-emitting device. The lower reflector may have a height greater than a height of the light-emitting device. The backlight unit may include a color resin in the holes and on the light-emitting device. The backlight unit may include a light path modulator above the light emitting device and on the color resin. The light path modulator may have a different refractive index than a refractive index of the color resin to reflect the emitted light at a boundary of the light path modulator and the color resin towards the lower reflector.

公开(公告)号：US20200183232A1

公开(公告)日：2020-06-11

申请号：US16696923

申请日：2019-11-26

Applicant: LG Display Co., Ltd.

Inventor： KiSeong KIM ,  HyeokJoon YOON ,  SeungJu GWON ,  Donghwi KIM

IPC: G02F1/1335

Abstract: In an embodiment, a display device comprises a display panel and a backlight unit. The backlight unit comprises a printed circuit, a light-emitting device on the printed circuit, and a transparent film including a holographic film. The holographic film includes at least an optical pattern overlapping the light-emitting device and modifying angle of a portion of light emitted by the light-emitting device. The backlight unit further comprises a light output pattern, where the portion of light with the modified angle passes through the light output pattern toward the display panel. The light output pattern may have a refractive index greater than a refractive index of the transparent film such that a refraction angle of the portion of light exiting the light output pattern is less than the incidence angle of the portion of light entering the light output pattern.

公开(公告)号：US20190137822A1

公开(公告)日：2019-05-09

申请号：US16148186

申请日：2018-10-01

Applicant: LG Display Co., Ltd.

Inventor： SeungJu GWON ,  HyeokJoon YOON ,  SeMin LEE

IPC: G02F1/1335

Abstract: An optical film and a display device including the same are disclosed, in which an image of the display device is prevented from being irradiated to an unwanted place and luminance is prevented from being deteriorated. The optical film includes a first base film; a second base film spaced apart from the first base film to face the first base film; an optical pattern arranged between the first base film and the second base film, having an inclined surface inclined at a certain angle; and a reflective member arranged at one side of the optical pattern.

公开(公告)号：US20180342704A1

公开(公告)日：2018-11-29

申请号：US15986118

申请日：2018-05-22

Applicant: LG Display Co., Ltd.

Inventor： SeungJu GWON ,  SeMin LEE

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5281 ,  H01L27/3244 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5237 ,  H01L51/5253 ,  H01L51/5275 ,  H01L51/5293

Abstract: An organic light emitting display device is disclosed, which prevents non-uniform luminance and color deviation caused by a change of a viewing angle from occurring. The organic light emitting display device includes a first substrate having a display area and a non-display area; an organic light emitting diode arranged in the display area of the first substrate; and an anisotropic diffusion film arranged on the organic light emitting diode, having a diffusion property varied depending on an incident angle.