The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Dec. 01, 2016
Lg Electronics Inc., Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A refrigerator includes a cabinet, a door including a door frame with an opening, a panel assembly provided at the opening and configured to allow an inside of the refrigerator to be seen through the panel assembly from an outside of the refrigerator, a knock detection device configured to detect a user's knocking operation on the panel assembly, and a lighting unit provided inside the refrigerator and configured to turn on or off based on a signal of the knock detection device while the door is closed. The panel assembly includes a front panel, an insulation panel spaced apart from a rear surface of the front panel, and a spacer bar provided between the front panel and the insulation panel. An insulation space is defined between the front panel and the insulation panel, and the knock detection device is provided outside the insulation space.