IP Library Granted Patent US 12,358,257
Granted Patent B2
US 12,358,257 · App. 17/091,365 · Granted Jul 15, 2025

Window, method for manufacturing window, and electronic device having the same

Inventors: Byeong-Beom Kim (Asan-si, KR); Minki Kim (Hwaseong-si, KR); Yuri Kim (Guri-si, KR); Hoikwan Lee (Suwon-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
B32B3/26B32B17/10027B32B17/10568B32B17/10706B32B17/10733B32B17/10743C09D7/61C09D133/08C09D163/00B32B2255/26B32B2305/72B32B2307/536B32B2457/20Y10T428/12382Y10T428/12389
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Quick Facts
Patent No.
US 12,358,257
App. No.
17/091,365
Granted
Jul 15, 2025
Kind
B2
Abstract

A window includes a coating layer including a front surface, a rear surface, a first region having a constant distance between the front surface and the rear surface in a thickness direction, and a second region in which a distance between the front surface and the rear surface reduces in a direction away from the first region; and a bezel layer disposed on the rear surface of the coating layer, where the coating layer includes inorganic particles, an acrylate resin and an epoxy resin.

Claims (34)

1. A window comprising;

a coating layer divided into a first region and a second region, wherein the first region includes a center portion of the coating layer in a cross-sectional view, the second region includes an edge portion of the coating layer in the cross-sectional view, the first region is directly connected to the second region, a rear surface of the coating layer is flat in an entirety of the first region and an entirety of the second region, a front surface of the coating layer is flat in the entirety of the first region, the rear surface and the front surface of the coating layer are outermost surfaces of the coating layer, in the entirety of the first region the first region has a constant distance between the flat front surface and the flat rear surface in a thickness direction, and in the second region a distance between the front surface and the flat rear surface gradually reduces from the constant distance in a direction away from the first region; and

a bezel layer disposed on the rear surface of the coating layer, configured to absorb incident light, and overlapping the second region, not the first region in the thickness direction,

wherein the coating layer comprises inorganic particles, an acrylate resin, and an epoxy resin.

2. The window of claim 1 , wherein the inorganic particles are at least one among SiO 2 , Al 2 O 3 , TiO 2 Li 2 O 3 , Na 2 O, or ZrO 2 .

3. The window of claim 2 , wherein the inorganic particles are included in the coating layer in an amount of about 1 percent by weight (wt %) to about 10 wt % with respect to the coating layer.

4. The window of claim 1 , wherein the constant distance between the front surface and the rear surface in the first region is about 10 micrometers (μm) to about 1,000 μm.

5. The window of claim 1 , wherein the coating layer has a pencil hardness of about 6 hardness (H) to about 9H.

6. The window of claim 1 , the window further comprising:

a glass layer disposed between the bezel layer and the coating layer.

7. The window of claim 6 , wherein

a thickness of the glass layer is about 10 μm to about 300 μm, and

the constant distance in the first region of the coating layer is about 10 μm to about 700 μm.

8. The window of claim 1 , the window further comprising:

a functional layer between the coating layer and the bezel layer,

wherein the functional layer comprises a repeated pattern having a shape of a hairline, a lattice, or a polygon.

9. An electronic device comprising:

an electronic panel comprising a display region parallel to a plane defined by a first direction and a second direction crossing the first direction and a non-display region surrounding the display region; and

a window disposed on the electronic panel,

wherein the window comprises:

a coating layer divided into a first region parallel to the plane, including a center portion of the coating layer in the first direction and overlapping the display region in a plan view, and a second region overlapping the non-display region, directly connected to the first region, and having an outer, curved surface; and

a bezel layer disposed under the second region, not the first region, and configured to absorb incident light,

wherein the coating layer includes inorganic particles, an acrylate resin, and an epoxy resin,

wherein a front surface of the first region has a constant height in a direction perpendicular to the plane in the entirety of the first region, and

a front surface of the second region has a height which gradually decreases from the constant height toward the first direction or the second direction,

wherein the height of the front surface of the first region and the height of the front surface of the second region are measured from a same flat rear surface of the coating layer, and

wherein the front surface of the first region and the front surface of the second region are an outermost surface of the electronic device.

10. The electronic device of claim 9 , wherein a thickness of the first region is about 10 μm to about 1,000 μm in the direction perpendicular to the plane.

11. The electronic device of claim 9 , wherein the window further comprises:

a glass layer disposed between the coating layer and the bezel layer,

wherein a thickness of the glass layer in the direction perpendicular to the plane is about 10 μm to about 300 μm.

12. The electronic device of claim 9 , wherein the window further comprises:

a functional layer between the coating layer and the bezel layer,

wherein the functional layer has a repeated pattern having a shape of a hairline, a lattice, or a polygon.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2021
From: KIM, BYEONG-BEOM; KIM, MINKI; KIM, YURI; LEE, HOIKWAN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 055445/0444 →
Priority Claims (1)
KR 10-2020-0021497 · Feb 21, 2020 · national
Continuity (1)
Related Publication 20210260846A1 · Aug 26, 2021
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