公开(公告)号：US20210201712A1

公开(公告)日：2021-07-01

申请号：US17130630

申请日：2020-12-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Changwoo CHUN ,  Jungmin LEE ,  Sejin JANG ,  Youngjoo PARK

IPC: G09F9/30 ,  G06F1/16

Abstract: Provided is a cover window. The cover window includes a substrate layer. The cover window further includes a hard-coating layer on the substrate layer. The cover window further includes a protective film disposed on the hard-coating layer and including a base film and a plurality of protrusions protruding from the base film. The cover window further includes an adhesive layer disposed on surfaces of the plurality of protrusions and bonding the hard-coating layer and the protective film. The protective film includes a first area and second areas disposed on both sides of the first area. The plurality of protrusions are disposed in the first area. The plurality of protrusions have a shape in which the protrusions disposed on one side and the protrusions disposed on the other side are symmetrical to each other with respect to a central line of the first area.

公开(公告)号：US20230017835A1

公开(公告)日：2023-01-19

申请号：US17858681

申请日：2022-07-06

Applicant: LG Display Co., Ltd.

Inventor： Wansoo LEE ,  Youngjoo PARK ,  ByoungHar HWANG ,  Taehyoung KWAK ,  Changwoo CHUN

IPC: G02B1/14 ,  G09F9/30 ,  G02B1/04

Abstract: The present disclosure relates to a flexible display device, and more particularly, a flexible display device includes a display panel, and a cover member which is disposed on the display panel and includes a thin glass and an adhesive member disposed so as to enclose the thin glass, at this time, the adhesive member includes a first adhesive member disposed so as to enclose an upper surface and a side surface of the thin glass and a second adhesive member disposed on a lower surface of the thin glass. According to the present disclosure, the flexible display device disposes a protective film above the cover member to provide a scattering suppressing effect and improve a surface hardness, a compression characteristic, the impact resistance and folding characteristic.

公开(公告)号：US20250147206A1

公开(公告)日：2025-05-08

申请号：US19011104

申请日：2025-01-06

Applicant: LG Display Co., Ltd.

Inventor： Wansoo LEE ,  Youngjoo PARK ,  ByoungHar HWANG ,  Taehyoung KWAK ,  Changwoo CHUN

IPC: G02B1/14 ,  G02B1/04 ,  G06F1/16 ,  G09F9/30 ,  H10K59/80

Abstract: The present disclosure relates to a flexible display device, and more particularly, a flexible display device includes a display panel, and a cover member which is disposed on the display panel and includes a thin glass and an adhesive member disposed so as to enclose the thin glass, at this time, the adhesive member includes a first adhesive member disposed so as to enclose an upper surface and a side surface of the thin glass and a second adhesive member disposed on a lower surface of the thin glass. According to the present disclosure, the flexible display device disposes a protective film above the cover member to provide a scattering suppressing effect and improve a surface hardness, a compression characteristic, the impact resistance and folding characteristic.

公开(公告)号：US20240081092A1

公开(公告)日：2024-03-07

申请号：US18505541

申请日：2023-11-09

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo PARK ,  Seungkyu LEE ,  Sejin JANG ,  Jungmin LEE ,  Taehyoung KWAK ,  Hyesun SONG

IPC: H10K50/84 ,  G02B1/14 ,  H10K50/86 ,  H10K59/12 ,  H10K77/10

CPC classification number: H10K50/841 ,  G02B1/14 ,  H10K50/86 ,  H10K59/12 ,  H10K77/111 ,  H10K2102/311

Abstract: A foldable display device includes a foldable display panel and a foldable cover window disposed on the foldable display panel. The foldable cover window includes a flexible film and a first hard coating layer located on the flexible film with the first hard coating layer including a base material in combination with a linker material. The base material is a siloxane-based resin and the linker material is one of: a urethane-acrylic-based linker, an acrylic-based linker, and an epoxy-based linker.

公开(公告)号：US20240065022A1

公开(公告)日：2024-02-22

申请号：US18488733

申请日：2023-10-17

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo PARK ,  Seungkyu LEE ,  Sejin JANG ,  Jungmin LEE ,  Taehyoung KWAK ,  Hyesun SONG

IPC: H10K50/84 ,  G02B1/14 ,  H10K50/86 ,  H10K59/12 ,  H10K77/10

CPC classification number: H10K50/841 ,  G02B1/14 ,  H10K50/86 ,  H10K59/12 ,  H10K77/111 ,  H10K2102/311

Abstract: A foldable display device includes a foldable display panel and a foldable cover window disposed on the foldable display panel. The foldable cover window includes a flexible film and a first hard coating layer located on the flexible film with the first hard coating layer including a base material in combination with a linker material. The base material is a siloxane-based resin and the linker material is one of: a urethane-acrylic-based linker, an acrylic-based linker, and an epoxy-based linker.

公开(公告)号：US20220206528A1

公开(公告)日：2022-06-30

申请号：US17534948

申请日：2021-11-24

Applicant: LG Display Co., Ltd.

Inventor： NohJin MYUNG ,  Wansoo LEE ,  Youngjoo PARK ,  Jieun LEE ,  Eun ROH

IPC: G06F1/16

Abstract: A foldable display device includes a display panel which includes a folding area and non-folding areas on some sides of the folding area, and a hinge unit which is disposed in an area corresponding to the folding area below the display panel to in-fold or out-fold the display panel. The hinge unit includes a plurality of rotary shafts and a plurality of coupling links disposed between the plurality of rotary shafts. Accordingly, the foldable display device can be bi-directionally (e.g., inwardly or outwardly) folded by the hinge unit with a simple structure. Further, a radius of curvature during the folding can be desirably changed by adjusting a component of the hinge unit, for example, a number of the plurality of rotary shafts and the plurality of coupling links, a cross-sectional length, and the like.

公开(公告)号：US20230335020A1

公开(公告)日：2023-10-19

申请号：US18212673

申请日：2023-06-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Changwoo CHUN ,  Jungmin LEE ,  Sejin JANG ,  Youngjoo PARK

IPC: G09F9/30 ,  G06F1/16 ,  B32B3/30 ,  B32B7/14 ,  B32B27/08

CPC classification number: G09F9/301 ,  G06F1/1616 ,  B32B3/30 ,  B32B7/14 ,  B32B27/08 ,  B32B2255/26 ,  B32B2457/20

Abstract: Provided is a cover window. The cover window includes a substrate layer. The cover window further includes a hard-coating layer on the substrate layer. The cover window further includes a protective film disposed on the hard-coating layer and including a base film and a plurality of protrusions protruding from the base film. The cover window further includes an adhesive layer disposed on surfaces of the plurality of protrusions and bonding the hard-coating layer and the protective film. The protective film includes a first area and second areas disposed on both sides of the first area. The plurality of protrusions are disposed in the first area. The plurality of protrusions have a shape in which the protrusions disposed on one side and the protrusions disposed on the other side are symmetrical to each other with respect to a central line of the first area.

公开(公告)号：US20230029166A1

公开(公告)日：2023-01-26

申请号：US17839124

申请日：2022-06-13

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo PARK ,  Eun ROH ,  Taehyoung KWAK

IPC: H01L51/52 ,  H01L51/00

Abstract: The present disclosure relates to a flexible display device, and more particularly a flexible display device includes a display panel, a back plate disposed below the display panel; and a plate bottom disposed below the back plate, and the back plate includes a base member and a hard coating layer disposed on at least one surface of the base member. The present disclosure is provide a flexible display device which minimizes dent or puncture failures and reduces a rigidity difference between the folding area and the non-folding area without including a plate top or an impact absorption layer to have excellent durability.