IP Library › Granted Patent US 12,215,917
Granted Patent B2
US 12,215,917 · App. 17/863,717 · Granted Feb 4, 2025

Refrigerator and home appliance

Inventors: Doyoun Han (Seoul, KR); Hyesun Jung (Seoul, KR); Jaesung Park (Seoul, KR)
Assignee: LG Electronics Inc.
F25D23/028F25D23/062
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Quick Facts
Patent No.
US 12,215,917
App. No.
17/863,717
Granted
Feb 4, 2025
Kind
B2
Abstract

A home appliance includes a cabinet defining a storage region and a door to open and close the storage region. The door includes a door body and a panel assembly mounted on the door body. The panel assembly includes a panel through which light is transmissible, a light guide plate spaced apart from the panel and having a pattern so that the light is irradiated onto the panel, and a light source installed to be spaced apart from a light entrance surface of the light guide plate.

Claims (44)

1. A home appliance comprising:

a cabinet that defines a storage region; and

a door configured to open and close the storage region,

wherein the door comprises:

a door body, and

a panel assembly mounted on the door body,

wherein the panel assembly comprises:

a panel configured to transmit light,

a light guide plate spaced apart from the panel, the light guide plate having a pattern configured to emit the light to the panel, and

a light source spaced apart from a light entrance surface of the light guide plate,

wherein the light guide plate comprises a pattern surface that defines the pattern of the light guide plate, the light guide plate having (i) a first part that defines a first pattern portion of the pattern and (ii) a second part that defines a second pattern portion of the pattern, and

wherein the first pattern portion is disposed at an edge of the pattern surface of the light guide plate and configured to emit a first amount of light that is greater than a second amount of light emitted from the second pattern portion.

2. The home appliance of claim 1 , wherein the panel assembly further comprises an adhesion portion that is disposed between the panel and the light guide plate and configured to transmit the light, and

wherein the first part faces the adhesion portion, and the second part does not face the adhesion portion.

3. The home appliance of claim 1 , wherein the first pattern portion surrounds the second pattern portion.

4. The home appliance of claim 3 , wherein the light entrance surface of the light guide plate defines a bottom surface of the light guide plate, and the pattern surface defines a light emission surface that is a front surface of the light guide plate, and

wherein the first pattern portion is disposed at an upper portion and both left and right portions of the light emission surface.

5. The home appliance of claim 4 , wherein the panel assembly comprises a lower bracket that supports a lower portion of the light guide plate, and

wherein the lower bracket comprises a cover portion that covers a lower portion of the pattern surface, and the panel is coupled to the cover portion by an adhesion portion.

6. The home appliance of claim 4 , further comprising a reflective layer that is in contact with an opposite surface of the light emission surface.

7. The home appliance of claim 6 , wherein the panel assembly further comprises a reflective member attached to a surface other than the light entrance surface and the light emission surface of the light guide plate and a surface to which the reflective layer is attached.

8. The home appliance of claim 1 , wherein the first pattern portion and the second pattern portion have a same pattern shape, and the first pattern portion has a pattern density greater than a pattern density of the second pattern portion, or

wherein the first pattern portion has a pattern shape different from a pattern shape of the second pattern portion.

9. The home appliance of claim 1 , wherein the second part is vertically divided into a plurality of portions, and

wherein an amount of light emitted from a first portion among the plurality of portions that is disposed away from the light source is greater than an amount of light emitted from a second portion among the plurality of portions that is disposed close to the light source.

10. The home appliance of claim 9 , wherein the second pattern portion at the first portion that is disposed away from the light source has a pattern density greater than a pattern density of the second pattern portion at the second portion that is disposed close to the light source.

11. The home appliance of claim 9 , wherein the second pattern portion at the first portion that is disposed away from the light source has a pattern shape different from a pattern shape of the second pattern portion at the second portion that is disposed close to the light source.

12. The home appliance of claim 1 , wherein the second part is divided into at least three portions in a left and right direction, and

wherein an amount of light emitted from a side portion that is close to the first part is greater than an amount of light emitted from a central portion.

13. The home appliance of claim 12 , wherein the second pattern portion at the central portion and the second pattern portion at the side portion have a same pattern shape, and

wherein the side portion has a pattern density greater than a pattern density of the central portion.

14. The home appliance of claim 12 , wherein the second pattern portion at the central portion and the second pattern portion at the side portion have a same pattern shape,

wherein the central portion and a portion of the side portion adjacent to the central portion have a same pattern density, and

wherein a portion of the side portion adjacent to the first part has a pattern density greater than the pattern density of the central portion and less than a pattern density of the first part.

15. The home appliance of claim 12 , wherein the second pattern portion at the central portion has a pattern shape different from a pattern shape of the second pattern portion at the side portion.

16. The home appliance of claim 1 , further comprising a support member that supports the light guide plate such that the light guide plate is spaced apart from the panel, the support member being coupled to the panel by an adhesion portion.

17. The home appliance of claim 16 , wherein the support member comprises:

a front surface portion attached to a rear surface of the panel by the adhesion portion; and

a side surface portion that protruding backward from each of both left and right ends of the front surface portion and is configured to restrict movement of each of both ends of the light guide plate.

18. The home appliance of claim 17 , wherein a front surface of the light guide plate is in contact with a rear surface of the front surface portion.

19. The home appliance of claim 17 , wherein at least one surface of both surfaces of the light guide plate is spaced apart from the side surface portion.

20. The home appliance of claim 17 , further comprising a reflective layer that is in contact with an opposite surface of a light emission surface of the light guide plate,

wherein the support member further comprises a side rib extending from the side surface portion in a direction crossing the side surface portion, and

wherein the light guide plate and the reflective layer are disposed between the front surface portion and the side rib.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2022
From: HAN, DOYOUN; JUNG, HYESUN; PARK, JAESUNG
To: LG ELECTRONICS INC.
Reel/Frame 061109/0132 →
Priority Claims (1)
KR 10-2021-0091836 · Jul 13, 2021 · national
Continuity (1)
Related Publication 20230013230A1 · Jan 19, 2023
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