公开(公告)号：US10890796B2

公开(公告)日：2021-01-12

申请号：US16441653

申请日：2019-06-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki Taek Lee ,  Hae Jung Yang ,  Hee Youb Kang ,  Young Rok Oh ,  Hee Chul Lee

IPC: G02F1/1334 ,  H05K7/20 ,  G02F1/1347

Abstract: An electronic device includes a circuit board including at least one electronic component, a housing accommodating the circuit board, an emissivity control layer disposed in an upper portion of the circuit board and transmitting radiant heat generated by the electronic component, and a temperature controller controlling an amount of the radiant heat transmitted to the housing by adjusting the emissivity of the emissivity control layer. The temperature controller may adjust the emissivity of the emissivity control layer to a first range value, when the electronic device is in an idle state, not performing a foreground operation, and may adjust the emissivity of the emissivity control layer to a second range value, lower than the first range value, when the electronic device is in a busy state, performing the foreground operation.