公开(公告)号：US12105371B2

公开(公告)日：2024-10-01

申请号：US17994120

申请日：2022-11-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Naewon Jang ,  Kihyung Kang ,  Sungho Kim ,  Sanghyun Sohn

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13363

CPC classification number: G02F1/133504 ,  G02F1/133531 ,  G02F1/13363 ,  G02F1/133345 ,  G02F1/133528

Abstract: A display apparatus includes a display panel including a first optical film. The first optical film includes: a biaxially elongated polyethylene terephthalate (PET) film; a scattering layer provided on the biaxially elongated PET film and having a haze value between 40% and 60%, the haze value representing a scattering rate of light; and a low-reflective layer provided on the scattering layer.

公开(公告)号：US12164192B2

公开(公告)日：2024-12-10

申请号：US18120560

申请日：2023-03-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Naewon Jang ,  Youngchol Lee ,  Hyungsuk Kim ,  Seokwoo Yong

IPC: G02F1/13357 ,  H01L33/10 ,  H01L33/50 ,  H01L33/56 ,  H01L33/64

Abstract: An example display apparatus includes a liquid crystal panel; a light source plate including a printed circuit board disposed behind the liquid crystal panel, and a light source module mounted on the printed circuit board to supply light to the liquid crystal panel. The light source module includes a light emitting diode (LED) chip; a light guide provided to guide the light emitted from the LED chip; a light converter provided to convert a wavelength of light guided through the light guide, and disposed on a first surface of the light guide and attached to the printed circuit board; and a distributed Bragg reflector (DBR) layer disposed on a second surface of the light guide body and provided to improve a light conversion efficiency of the light conversion member.

公开(公告)号：US11906846B2

公开(公告)日：2024-02-20

申请号：US18113359

申请日：2023-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngchol Lee ,  Hyungsuk Kim ,  Naewon Jang ,  Seokwoo Yong ,  Junsung Choi

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133614 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133608 ,  G02F1/133612 ,  G02F1/133621 ,  G02F2201/346 ,  G02F2202/36

Abstract: A display device according to the disclosure comprises: a liquid crystal panel having a front surface configured to display an image; and a light source plate disposed at the rear of the liquid crystal panel configured to provide light to the liquid crystal panel, wherein the light source plate comprises: a printed circuit board having a mounting surface; an LED chip directly mounted on the mounting surface as a chip on board (COB); a transparent resin disposed on the LED chip to encompass the LED chip; a light conversion layer configured to convert the wavelength of light emitted from the LED chip and encompassing the outer peripheral surface of the transparent resin; and a barrier layer covering the light conversion layer from the outside.

公开(公告)号：US12061396B2

公开(公告)日：2024-08-13

申请号：US18120003

申请日：2023-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Naewon Jang ,  Youngchol Lee ,  Hyungsuk Kim ,  Seokwoo Yong

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133614 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133608 ,  G02F1/133621 ,  G02F2201/346 ,  G02F2202/28 ,  G02F2202/36

Abstract: A display device may have a reduced thickness while having enhanced color reproducibility by having an improved structure. The display device may include: a liquid crystal panel; a light source plate which is arranged at the rear of the liquid crystal panel to provide light to the liquid crystal panel, and which includes a printed circuit board and an LED chip mounted on the printed circuit board; and a chip cover which is provided to cover a light-emitting surface of the LED chip, and which changes the wavelength of the light emitted from the LED chip, wherein the chip cover includes: a cover layer having a first surface arranged to face the light-emitting surface of the LED chip, a second surface opposite to the first surface, and an accommodating groove provided on the second surface; a light conversion member which changes the wavelength of the light emitted from the LED chip, and which is accommodated in the accommodating groove; and a barrier layer for covering the second surface to cover the light conversion member from the outside.

公开(公告)号：US20210286215A1

公开(公告)日：2021-09-16

申请号：US17198857

申请日：2021-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Naewon Jang ,  Daeyoung Kim ,  Byoungjin Cho ,  Kilhong Lee

IPC: G02F1/13357 ,  G02F1/1335

Abstract: A display apparatus includes a liquid crystal panel, a light source configured to provide light to the liquid crystal panel, and an optical member disposed between the liquid crystal panel and the light source. The optical member includes a diffuser sheet that is configured to diffuse the light from the light source, and a deformation preventing layer including a first material having a lower expansion or contraction rate than the diffuser sheet.

公开(公告)号：US12019331B2

公开(公告)日：2024-06-25

申请号：US18295273

申请日：2023-04-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuichiro Goto ,  Naewon Jang ,  Youngchol Lee ,  Yoshihiro Yokote

IPC: G02F1/1335

CPC classification number: G02F1/133607 ,  G02F1/133504

Abstract: A liquid crystal display device includes a light source, a light collection part, a liquid crystal part, and an anisotropic diffusion layer. The light source emits light. The light collection part collects the light emitted from the light source in the front direction of the liquid crystal display device so that, when an image is displayed, the light collecting property in a left-right direction is different from the light collecting property in an up-down direction. The liquid crystal part controls a transmission state of the light collected by the light collection part using a liquid crystal. The anisotropic diffusion layer anisotropically diffuses the light transmitted through the liquid crystal part.

公开(公告)号：US11579489B2

公开(公告)日：2023-02-14

申请号：US17198857

申请日：2021-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Naewon Jang ,  Daeyoung Kim ,  Byoungjin Cho ,  Kilhong Lee

IPC: G02F1/13357 ,  G02F1/1335

Abstract: A display apparatus includes a liquid crystal panel, a light source configured to provide light to the liquid crystal panel, and an optical member disposed between the liquid crystal panel and the light source. The optical member includes a diffuser sheet that is configured to diffuse the light from the light source, and a deformation preventing layer including a first material having a lower expansion or contraction rate than the diffuser sheet.