Touch sensor assembly and door including the same

Patent metadata

Field	Value
Publication number	US-10352552-B2
Application number	US-201815952941-A
Country	US
Kind code	B2
Filing date	Apr 13, 2018
Priority date	Dec 24, 2014
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A household appliance according to an embodiment of the present disclosure includes a front panel forming an exterior, a display window formed with a plurality of through holes having minute or fine sizes formed at the front panel, and the plurality of through holes are filled with a coating liquid including an anti-foaming agent.

First claim

What is claimed is:

1. A household appliance comprising:
a metallic front panel forming an exterior of the household appliance;
a display window area having a plurality of through holes formed on the front panel to display information through the plurality of through holes;
a display assembly provided at a rear of the front panel corresponding to the display window area and includes a plurality of light emitting diodes (LEDs) which emit light toward the plurality of through holes;
a coating layer which is screen printed on a rear surface of the front panel corresponding to the display window area and includes an anti-foaming agent, an acryl polyol, and a curing agent;
a first black coating layer provided over the coating layer except the plurality of through holes; and
a display cover in contact against the first black coating layer, wherein the display cover includes:
a through hole formed at a position corresponding to the plurality of through holes, through which light emitted toward the plurality of through holes passes; and
a second black coating layer which is printed on a front surface of the display cover, wherein the display assembly is positioned at a through hole of the display cover.

2. The household appliance of claim 1 , wherein:
the anti-foaming agent is included in a coating liquid forming the coating layer at 0.5 to 1.5 wt %;
the acryl polyol is included in the coating liquid at 33 wt %; and
the curing agent is included in the coating liquid at 1 wt %.

3. The household appliance of claim 2 , wherein coating layer further includes a silicon acryl polyol included in the coating liquid at 33 wt %.

4. The household appliance of claim 3 , wherein coating layer further includes a leveling agent and an attachment enhancement agent.

5. The household appliance of claim 1 , wherein the display window area includes a window having eighty eight segments form formed by a group of the plurality of through holes.

6. The household appliance of claim 1 , wherein the display window area includes an area to display one of a text, a drawing, or a symbol formed by a group of the plurality of through holes.

7. The household appliance of claim 1 , wherein a thickness of the coating layer is in a range of 35 to 55 m.

8. The household appliance of claim 1 , further comprising an anti-fingerprint coating layer attached onto a front surface of the front panel.

9. The household appliance of claim 1 , wherein the coating layer has prescribed transparency such that light transmitted through the plurality of through holes has a brightness of at least equal to 40 nit.

Assignees

• Lg Electronics Inc

Inventors

• Kim Minchel
• Park Jinseung

Classifications

• F25D23/00

  General constructional features (F25D21/00 takes precedence) · CPC title

• G09F2013/222

  with LEDs · CPC title

• G09F3/208

  Electronic labels, Labels integrating electronic displays · CPC title

• H03K2217/960755

  Constructional details of capacitive touch and proximity switches · CPC title

• F21V33/0044 Primary

  Household appliances, e.g. washing machines or vacuum cleaners · CPC title