IP Library › Granted Patent US 12,607,790
Granted Patent B2
US 12,607,790 · App. 17/857,839 · Granted Apr 21, 2026

Foldable display device and method for manufacturing the same

Inventors: Seungun Park (Paju-si, KR); Seoyoung Lee (Jeonju-si, KR); Hyejeong Park (Paju-si, KR)
Assignee: LG DISPLAY CO., LTD.
G02B5/208G02B1/14G02B5/3083H10K59/8792H10K59/8793H10K2102/311
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Quick Facts
Patent No.
US 12,607,790
App. No.
17/857,839
Granted
Apr 21, 2026
Kind
B2
Abstract

A foldable display device includes a display panel, a protective base disposed on a top surface of the display panel, a polarizing plate disposed on a top surface of the protective base, a light blocking layer disposed at an edge of a top surface of the polarizing plate, and a hard coating layer for covering the polarizing plate and the light blocking layer and including a UV absorbent.

Claims (21)

1 . A foldable display device comprising:

a display panel;

a protective base disposed on a top surface of the display panel;

a polarizing plate disposed on a top surface of the protective base;

a light blocking layer directly disposed on an edge of a top surface of the polarizing plate; and

a hard coating layer directly disposed on the top surface of the polarizing plate and an upper surface and a side surface of the light blocking layer and including a UV absorbent.

2 . The foldable display device of claim 1 , wherein the UV absorbent includes at least one of benzotriazole-based, benzophenone-based, salicylic acid-based, salicylate-based, cyanoacrylate-based, cinnamate-based, oxanilide-based, polystyrene-based, azomethine-based, and triazine-based absorbents.

3 . The foldable display device of claim 1 , wherein the hard coating layer includes a cross-linked copolymer of an acrylate-based monomer and a photocurable elastomer.

4 . The foldable display device of claim 1 , wherein the protective base is made of glass.

5 . A foldable display device comprising:

a display panel;

a first optical member disposed on the display panel;

a second optical member including a polarizer and disposed on the first optical member;

a light blocking layer directly disposed on an edge of a top surface of the second optical member; and

a hard coating layer directly disposed on the top surface of the second optical member and an upper surface and a side surface of the light blocking layer and including a UV absorbent.

6 . The foldable display device of claim 5 , wherein the UV absorbent includes at least one of benzotriazole-based, benzophenone-based, salicylic acid-based, salicylate-based, cyanoacrylate-based, cinnamate-based, oxanilide-based, polystyrene-based, azomethine-based, and triazine-based absorbents.

7 . The foldable display device of claim 5 , wherein the hard coating layer includes a cross-linked copolymer of an acrylate-based monomer and a photocurable elastomer.

8 . The foldable display device of claim 5 , wherein the first optical member is a protective base made of glass and the second optical member is a polarizing plate.

9 . The foldable display device of claim 3 , wherein the polarizing plate includes a transparent base and a polarizer disposed on a bottom surface of the transparent base, wherein the light blocking layer and the hard coating layer are disposed on a top surface of the transparent base of the polarizing plate.

10 . The foldable display device of claim 8 , wherein the polarizing plate includes a transparent base and a polarizer disposed on a bottom surface of the transparent base, wherein the light blocking layer and the hard coating layer are disposed on a top surface of the transparent base.

11 . The foldable display device of claim 5 , wherein the first optical member is a polarizing plate and the second optical member is a protective base made of glass.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2022
From: PARK, SEUNGUN; LEE, SEOYOUNG; PARK, HYEJEONG
To: LG DISPLAY CO., LTD.
Reel/Frame 060416/0270 →
Priority Claims (1)
KR 10-2021-0090821 · Jul 12, 2021 · national
Continuity (1)
Related Publication 20230009733A1 · Jan 12, 2023
References Cited (22)
US 9091814B2 · Kang · 2015 [cited by applicant]
US 10234693B2 · Lim et al. · 2019 [cited by applicant]
US 10620465B2 · Lee et al. · 2020 [cited by applicant]
US 10792901B2 · Isojima et al. · 2020 [cited by applicant]
US 20090086326A1 · Hamamoto · 2009 [cited by examiner]
US 20160223722A1 · Ahn · 2016 [cited by examiner]
US 20200064968A1 · Kim · 2020 [cited by examiner]
US 20210132724A1 · Kwon · 2021 [cited by examiner]
US 20210191576A1 · Kwon · 2021 [cited by examiner]
US 20210247810A1 · Kim · 2021 [cited by examiner]
US 20210357061A1 · Ishihara et al. · 2021 [cited by applicant]
US 20230071460A1 · Ko · 2023 [cited by examiner]
CN 109523917A · 2019 [cited by applicant]
CN 109844847A · 2019 [cited by applicant]
CN 113056781A · 2021 [cited by applicant]
KR 20130054844A · 2013 [cited by applicant]
KR 1020170000031A · 2017 [cited by applicant]
KR 1020170086373A · 2017 [cited by applicant]
KR 1020190032686A · 2019 [cited by applicant]
Office Action issued on Jun. 19, 2025 in Chinese Patent Application No. 202210788233.7 with English translation. [cited by applicant]
Office Action issued on May 7, 2025 in Korean Patent Application No. 10-2021-0090821 with English translation. [cited by applicant]
Office Action issued on Jul. 19, 2024 in Korean Patent Application No. 10-2021-0090821. [cited by applicant]