公开(公告)号：US10275081B2

公开(公告)日：2019-04-30

申请号：US15662598

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jae Sung Yang ,  Hyun Ki Kim

IPC: F25D23/02 ,  F25D29/00 ,  G06F3/01 ,  H03K17/96 ,  G06F3/041 ,  G06F3/0488

Abstract: A refrigerator includes a door that has a front panel with an operation area to receive a touch operation of a user, a touch sensor assembly that is located rearward of the operation area and that includes sensors to generate an input signal based on the touch operation, and a sensor controller connected to the touch sensor assembly and configured to process the input signal received from the touch sensor assembly. The sensor controller is configured to determine whether the touch operation is a push operation or a release operation based on comparison of a voltage value of the processed input signal to predetermined first and second threshold voltage values.