IP Library › Granted Patent US 12,414,252
Granted Patent B2
US 12,414,252 · App. 17/976,299 · Granted Sep 9, 2025

Display panel and a manufacturing method thereof

Inventors: Jiho Son (Paju-si, KR); Geonhyeong Kim (Paju-si, KR); Hoyoon Jung (Paju-si, KR)
Assignee: LG Display Co., Ltd.
H05K5/03B32B7/12C09D11/037B32B17/06B32B27/281B32B2255/10B32B2255/28B32B2307/412B32B2307/42B32B2457/20H10K59/12
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Quick Facts
Patent No.
US 12,414,252
App. No.
17/976,299
Granted
Sep 9, 2025
Kind
B2
Abstract

Disclosed is a display panel and a manufacturing method thereof. The display panel includes a plurality of ink layers applied in a cover window and a manufacturing method thereof.

Claims (28)

1. A display panel comprising:

a cover window;

an adhesive layer below the cover window;

a first ink layer below the cover window;

a second ink layer below the first ink layer, the second ink layer including a coarse pattern; and

a panel layer below the adhesive layer,

wherein one surface of the first ink layer is in direct contact with the cover window, and another surface opposite to the one surface of the first ink layer is in direct contact with the second ink layer.

2. The display panel of claim 1 , wherein the coarse pattern includes an embossed pattern.

3. The display panel of claim 2 , wherein the embossed pattern includes a plurality of beads.

4. The display panel of claim 3 , wherein the second ink layer is formed in a pad printing method, and wherein a second ink material applied to a printing pad includes the plurality of beads.

5. The display panel of claim 1 , wherein the coarse pattern includes an engraving pattern.

6. The display panel of claim 5 , wherein the second ink layer is formed in a pad printing method, and an application area of a second ink material has an embossed pattern.

7. The display panel of claim 1 , wherein an end of the first ink layer protrudes further towards a center of the display panel than an end of the second ink layer.

8. The display panel of claim 1 , further comprising:

a third ink layer below the first ink layer.

9. The display panel of claim 8 , wherein the third ink layer is more towards a center of the display panel than the second ink layer and the third ink layer is attached to a middle frame.

10. The display panel of claim 8 , wherein the third ink layer is on a same layer as the second ink layer.

11. The display panel of claim 8 , wherein the third ink layer lacks the coarse pattern.

12. The display panel of claim 1 , wherein the first ink layer and the second ink layer are along outer edges of the cover window.

13. The display panel of claim 1 , further comprising:

a third ink layer below the first ink layer,

wherein the third ink layer covers a side surface of the second ink layer.

14. The display panel of claim 1 , further comprising:

a third ink layer below the first ink layer,

wherein the first ink layer is in direct contact with the second ink layer and the third ink layer.

15. The display panel of claim 1 , wherein the cover window includes a flat area and a bending area,

wherein the first ink layer and the second ink layer are disposed in the bending area.

16. The display panel of claim 15 , wherein the panel layer is bent along the bending area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2022
From: SON, JIHO; KIM, GEONHYEONG; JUNG, HOYOON
To: LG DISPLAY CO., LTD.
Reel/Frame 061587/0935 →
Priority Claims (1)
KR 10-2021-0192360 · Dec 30, 2021 · national
Continuity (1)
Related Publication 20230217619A1 · Jul 6, 2023
References Cited (9)
US 10804486B2 · Kim et al. · 2020 [cited by applicant]
US 20180184529A1 · Kim et al. · 2018 [cited by applicant]
CN 110865741A · 2020 [cited by examiner]
KR 1020180074270A · 2018 [cited by applicant]
KR 1020190031398A · 2019 [cited by applicant]
KR 1020190072134A · 2019 [cited by applicant]
CN 110865741 Machine Translation (Year: 2020). [cited by examiner]
KR 2019-0031398 Machine Translation (Year: 2019). [cited by examiner]
Korean Intellectual Property Office, Office Action, Korean Patent Application No. 10-2021-0192360, Nov. 13, 2024, 18 pages. [cited by applicant]