公开(公告)号：US20170122307A1

公开(公告)日：2017-05-04

申请号：US15335944

申请日：2016-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jongyoon CHOI ,  Donghyun KIM ,  Wooyoung JUNG ,  Dowon KANG ,  Hyeongseok KIM

IPC: F04B49/12 ,  F04B49/06 ,  F04B53/10 ,  F04B35/04 ,  F04B53/16

CPC classification number: F04B49/022 ,  F04B35/04 ,  F04B35/045 ,  F04B49/06 ,  F04B49/065 ,  F04B49/12 ,  F04B2203/0401 ,  F04B2203/0402

Abstract: A linear compressor is provided which is capable of reducing noise and fabrication costs. The linear compressor may include a piston that performs a reciprocating motion within a cylinder, a linear motor that supplies a driving force to the piston, a sensor that detects a motor voltage and motor current associated with the motor, a valve plate provided at one end of the cylinder to adjust a discharge of a refrigerant compressed in the cylinder, a pressure changing unit or device that changes a variation rate of pressure applied to the piston before the piston reaches the valve plate during the reciprocating motion, and a controller that determines whether the variation rate of the pressure applied to the piston has changed using the detected motor voltage and motor current, and controls the motor to prevent the piston from colliding with the valve plate on the basis of the determination result.

公开(公告)号：US20180137839A1

公开(公告)日：2018-05-17

申请号：US15815472

申请日：2017-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Moonsoo KANG ,  Wooyoung JUNG ,  Bongseok KIM ,  Wontae KIM

IPC: G09G5/10 ,  G06F3/14

CPC classification number: G09G5/10 ,  G06F3/1431 ,  G06F3/1438 ,  G06F3/1446 ,  G09G2320/0233 ,  G09G2320/0261 ,  G09G2320/0626 ,  G09G2320/0686

Abstract: A display apparatus includes a plurality of displays arranged adjacently, an image divider configured to divide an original input image into a plurality of sub-images for displaying the original input image split between the plurality of displays, wherein one or more of the plurality of sub-images corresponds to one or more still images and one or more of the plurality of sub-images corresponds to one or more moving images, and at least one controller configured to cause the one or more still images and the one or more moving images to be displayed with a first luminance value based on luminance values corresponding to the plurality of sub-images of each display of the plurality of displays. Accordingly, it is possible to improve image quality in the display apparatus including the plurality of displays.