公开(公告)号：US10367368B2

公开(公告)日：2019-07-30

申请号：US15484728

申请日：2017-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Gyunghwan Yuk ,  Jaesung Lee ,  Jaesoon Kwon ,  Jinsup Park ,  Jeongkyo Seo ,  Byungsang Jung ,  Youngchan Cho

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80 ,  H04B5/00 ,  H02J50/40 ,  H02J50/90 ,  H01F38/14

Abstract: The present relates to a wireless power transmitter performing communication with a wireless power receiver, and a wireless power transfer method thereof. The wireless power transmitter includes a power conversion unit configured to transmit a wireless power signal transferred in a form of an energy field, such as an electric field, a magnetic field or an electromagnetic field, and a power transmission control unit configured to transfer power to the wireless power receiver using the wireless power signal, wherein the power transmission control unit is configured to control the power conversion unit to transmit a near-field communication (NFC) detection signal, other than the wireless power signal, when a preset condition is satisfied, and wherein the power transmission control unit controls the wireless conversion unit in a different manner according to whether or not a response signal to the NFC detection signal is detected.

公开(公告)号：US20180268781A1

公开(公告)日：2018-09-20

申请号：US15926691

申请日：2018-03-20

Applicant: LG ELECTRONICS INC.

Inventor： Jinsup Park ,  Byunghyun An ,  Kanghyun Yoon ,  Inhwan Lee

IPC: G09G5/10

Abstract: An image display apparatus is disclosed. The image display apparatus includes a display panel, an illuminance sensor to sense an ambient illuminance of the display panel, a plurality of light sources disposed in an edge region of a back surface of the display panel to output light, a plurality of switching elements to switch the light sources, and a processor to control the switching elements, wherein, when a difference in local dimming data of an input image between adjacent first and second regions is above a first reference value, the processor controls driving times of at least some of the switching elements to decrease a difference in illuminance between the first region and the second region, based on the illuminance sensed by the illuminance sensor.

公开(公告)号：US10825420B2

公开(公告)日：2020-11-03

申请号：US15926691

申请日：2018-03-20

Applicant: LG ELECTRONICS INC.

Inventor： Jinsup Park ,  Byunghyun An ,  Kanghyun Yoon ,  Inhwan Lee

IPC: G09G5/10 ,  G09G3/34

Abstract: An image display apparatus is disclosed. The image display apparatus includes a display panel, an illuminance sensor to sense an ambient illuminance of the display panel, a plurality of light sources disposed in an edge region of a back surface of the display panel to output light, a plurality of switching elements to switch the light sources, and a processor to control the switching elements, wherein, when a difference in local dimming data of an input image between adjacent first and second regions is above a first reference value, the processor controls driving times of at least some of the switching elements to decrease a difference in illuminance between the first region and the second region, based on the illuminance sensed by the illuminance sensor.