IP Library › Granted Patent US 12,302,742
Granted Patent B2
US 12,302,742 · App. 18/500,543 · Granted May 13, 2025

Display device including bonding member

Inventors: Jun Su Park (Seoul, KR); Young Do Kim (Cheonan-si, KR); Young Moon Kim (Asan-si, KR); Kyung Lae Rho (Suwon-si, KR); Young Gil Park (Asan-si, KR); Ji Hye Seo (Cheonan-si, KR); Ki Cheol Song (Suwon-si, KR); Na Ri Ahn (Seongnam-si, KR); Jang Doo Lee (Hwaseong-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K77/111B32B7/12B32B17/10027B32B17/10458H10K50/841H10K50/86H10K50/87H10K59/12H10K59/40B32B2307/42B32B2307/546B32B2457/208G06F3/0412G06F2203/04102H10K2102/311
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Quick Facts
Patent No.
US 12,302,742
App. No.
18/500,543
Granted
May 13, 2025
Kind
B2
Abstract

A display device includes a display panel including a front surface and a second surface which is opposite to the front surface; a front laminated structure attached to the front surface of the display panel; and a rear laminated structure attached to the second surface of the display panel. Each of the front laminated structure and the rear laminated structure includes a bonding member, and an average modulus of the bonding member of the front laminated structure is smaller than an average modulus of the bonding member of the rear laminated structure.

Claims (19)

1. A display device comprising:

a display panel including a first surface and a second surface opposite to each other, the display panel being configured to be folded;

a cover window on the first surface of the display panel;

a first film on the cover window;

a second film on the second surface of the display panel;

a first bonding layer between the cover window and the first film; and

a second bonding layer between the display panel and the second film,

wherein the first bonding layer has a first indenter-measured modulus, the second bonding layer has a second indenter-measured modulus, and the second indenter-measured modulus is at least 2 times and at most 20 times the first indenter-measured modulus.

2. The display device of claim 1 , wherein the first film includes a transparent polymer film.

3. The display device of claim 2 , wherein the cover window includes a glass.

4. The display device of claim 3 , wherein a thickness of the glass is in a range of 30 μm to 80 μm.

5. The display device of claim 2 , wherein the cover window includes a polyimide.

6. The display device of claim 2 , wherein the first bonding layer is in direct contact with the cover window and the first film.

7. The display device of claim 1 , wherein the first bonding layer and the second bonding layer includes an acrylic adhesive.

8. The display device of claim 1 , further comprising a third bonding layer between the display panel and the cover window.

9. The display device of claim 8 , wherein the third bonding layer has a third indenter-measured modulus and the third indenter-measured modulus is at least 2 times and at most 20 times the first indenter-measured modulus.

10. The display device of claim 1 , wherein the second film is a polymer film.

11. The display device of claim 10 , wherein the second film includes a light absorbing layer.

12. The display device of claim 1 , wherein the display panel is configured to be folded so that a first portion of the first surface and a second portion of the first surface face each other.

Priority Claims (1)
KR 10-2019-0019405 · Feb 19, 2019 · national
Continuity (3)
Continuation 17872070 · Jul 25, 2022
Continuation 16658857 · Oct 21, 2019
Related Publication 20240065087A1 · Feb 22, 2024
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