# US 10,500,608 B2 · Display apparatus and manufacturing method thereof

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- Number: US 10,500,608 B2
- Document ID: US10500608B2
- Status: Granted
- Kind: B2
- Application number: 15/073,457
- Filed: 2016-03-17
- Published: 2016-11-03
- Granted: 2019-12-10
- Earliest claimed: 2015-04-29
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hoon Sik Kim; Young Do Kim
- Web page: https://patentgrep.com/patent/US10500608B2

## CPC

- B05D 1/322: {Removable films used as masks}
- B05C 21/005: {Masking devices (stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20)}
- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02F 1/133331: {Cover glasses}
- G02F 1/133351: {Manufacturing of individual cells out of a plurality of cells, e.g. by dicing}
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A display device according to one or more exemplary embodiments of the present invention includes: a display panel; a window on the display panel; an active surface layer on the window; and a hard coating layer on the active surface layer and having a curved surface.

## Claims

### Claim 1

A display device comprising:
a display panel;
a window on the display panel;
an active surface layer on the window; and
a hard coating layer on the active surface layer and having a curved surface, the active surface layer being between the window and the hard coating layer,
wherein the active surface layer is hydrophilic, and
wherein an upper surface of a portion of the hard coating layer that overlaps a flat portion of the display panel has a different curvature than a lower surface of the portion of the hard coating layer.

### Claim 2 (depends on 1)

The display device of claim 1, wherein a first thickness of the hard coating layer at a center of the display device in a direction normal to a corresponding lower surface of the hard coating layer is greater than a second thickness of the hard coating layer at an end portion of the display device in the direction normal to a corresponding lower surface of the hard coating layer.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the upper surface of the hard coating layer has a continuous dome-like shape.

### Claim 4 (depends on 1)

The display device of claim 1, wherein a surface of the hard coating layer may have a contact angle that is in a range of greater than 0° to less than 90° at each end portion of the window.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the hard coating layer is curved at a first angle in a first direction and a second angle in a second direction.

### Claim 6 (depends on 1)

The display device of claim 1, wherein the active surface layer and the hard coating layer directly contact each other.

### Claim 7 (depends on 1)

The display device of claim 1, further comprising a touch panel on the display panel, the touch panel being between the display panel and the window.

### Claim 8 (depends on 1)

The display device of claim 1, wherein the active surface layer is formed by using a plasma method or a coating method.

### Claim 9 (depends on 1)

The display device of claim 1, wherein the hard coating layer is made of a material that is higher in surface energy than that of the window.