公开(公告)号：US10761257B2

公开(公告)日：2020-09-01

申请号：US15493536

申请日：2017-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang-woo Lee ,  Donghoon Kim ,  Kyung-min Kim ,  Seunghwan Chung

IPC: F21V8/00 ,  G02B6/00 ,  G02F1/13357

Abstract: A display device includes a backlight and a display panel on the backlight. The backlight includes a light source to provide a first light, and an optical wavelength converter to receive the first light and emits a second light. The optical wavelength converter includes a light emitting part having a plurality of excitation light emitting bodies to be excited by receiving the first light, and thereby emit the second light, and a light absorbing part including a plurality of absorbers provided on the light emitting part to receive the second light and absorb a portion of the second light having a wavelength of about 550 nm to about 650 nm.

公开(公告)号：US10401552B2

公开(公告)日：2019-09-03

申请号：US15635713

申请日：2017-06-28

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung-min Kim ,  Hyuk-hwan Kim ,  Youngchun Kim

IPC: F21V8/00 ,  G02F1/1335

Abstract: A display apparatus includes a light source which generates a first light, a display module which displays an image, a light guide plate disposed under the display module, and an optical filter disposed under the light guide plate to face the display module. The optical filter includes a filter layer which transmits a portion of the first light from the light guide plate and reflects a remaining portion of the first light except for the portion and an absorbing layer disposed under the filter layer to absorb the first light transmitted thereto through the filter layer. As an incident angle of the first light incident to the filter layer with respect to a normal line of an upper surface of the filter layer increases, an overlapping bandwidth between a reflection wavelength bandwidth of the filter layer and a wavelength bandwidth of the first light increases.

公开(公告)号：US10330850B2

公开(公告)日：2019-06-25

申请号：US15498677

申请日：2017-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Youngchun Kim ,  Kyung-min Kim ,  Hyuk-hwan Kim ,  Hee-kwang Song

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/13 ,  F21V8/00

Abstract: A display apparatus includes a display module including a light conversion member including a plurality of quantum dots, a backlight unit providing a first light to the display module, and an optical filter disposed between the display module and the backlight unit. The optical filter includes a transmission filter layer transmitting a light in the first wavelength range and a second wavelength range, reflecting a light in a third wavelength range, and having a first effective refractive index and a viewing angle control layer disposed between the transmission filter layer and the display module to couple the transmission filter layer and the display module and having a second effective refractive index equal to or smaller than the first effective refractive index.

公开(公告)号：US09927569B2

公开(公告)日：2018-03-27

申请号：US14882646

申请日：2015-10-14

Applicant: Samsung Display CO., Ltd.

Inventor： Youngchun Kim ,  Kyung-min Kim ,  Junghoon Shin ,  Byoungdae Ye

IPC: F21V8/00

CPC classification number: G02B6/0031 ,  G02B6/0068 ,  G02B6/0091

Abstract: A display device includes a display panel receiving light and displaying an image, a light guide plate guiding the light to the display panel, a printed circuit board disposed adjacent to one side of the light guide plate and including first and second areas alternately defined therein, light sources mounted on the printed circuit board to correspond to the first area and to supply the light to the light guide plate, a first barrier wall disposed on the printed circuit board and extending in a direction in which the light sources are arranged, and a second barrier wall facing the first barrier wall such that the light sources are disposed between the first and second barrier walls, the second barrier wall disposed on the printed circuit board, and extending in the direction.