公开(公告)号：US20170284694A1

公开(公告)日：2017-10-05

申请号：US15508673

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

Inventor： Jungmin PARK ,  Hamin JEON ,  Howon SON ,  Heejae KIM

IPC: F24F11/00 ,  B01D46/00 ,  F24F1/00

Abstract: The present invention comprises: a first filter, and a second filter positioned in the slipstream of the first filter in the airflow direction; a dust amount sensor positioned before the first filter in the airflow direction, having a hole part through which dust passes, and transmitting, per unit of time, each of a first total, which is the amount of dust in a first size range, and a second total, which is the amount of dust in a second size range smaller than the first size range, of the dust passing through the hole part; and a control unit for outputting the service signal of the first filter if the accumulated value of the first total transmitted from the dust amount sensor exceeds a first set value, and outputting the service signal of the second filter if the accumulated value of the second total transmitted from the dust amount sensor exceeds a second set value, wherein the optimum service time of each of the first filter and the second filter, which are capable of filtering dust of different sizes, can be independently calculated such that the unnecessary service of one of the first filter and the second filter can be blocked, and the optimum service time according to the indoor quality can be indicated.

公开(公告)号：US20180232120A1

公开(公告)日：2018-08-16

申请号：US15752716

申请日：2015-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Howon SON ,  Jungmin PARK ,  Heejae KIM ,  Jungchul KIM

IPC: G06F3/0483 ,  G06F3/0488 ,  G06F3/0485 ,  G06F1/16

CPC classification number: G06F3/0483 ,  G06F1/1643 ,  G06F1/1652 ,  G06F3/0485 ,  G06F3/04855 ,  G06F3/04883 ,  G06F3/04886

Abstract: Disclosed are a wearable device and controlling method thereof. The present invention includes displaying a 1st information of a specific content on a 1st region of a screen, receiving an input for adjusting a screen length by unrolling a rollable display module for displaying the screen from a user by being initially rolled up, displaying the 1st information a portion or whole part of a 2nd region in response to the received input, and displaying a 2nd information of the specific content different from the 1st information on the 1st region, wherein the amount of the 2nd information is determined depending on a size of the 2nd region.