公开(公告)号：US20170332453A1

公开(公告)日：2017-11-16

申请号：US15535537

申请日：2015-11-05

Applicant: LG INNOTEK CO., LTD.

Inventor： Jae Hun YOON ,  Do Yub KIM ,  Min Hak KIM ,  Seung Beom JEONG

IPC: H05B33/08

CPC classification number: H05B33/0851 ,  H05B33/0809 ,  H05B33/0887 ,  H05B37/02

Abstract: An embodiment comprises: a voltage generation unit for providing a direct current signal for driving a light emitting unit; a sensing resistor; and a dimming unit which is connected between the light emitting unit and the sensing resistor and controls a current flowing in the sensing resistor and the light emitting unit, wherein the dimming unit adjusts the level of the direct current signal on the basis of a first sensing voltage as a result of sensing the voltage of a first node where a switch is connected to the light emitting unit, and a second sensing voltage as a result of sensing the voltage of a second node where the switch is connected to the sensing resistor.

公开(公告)号：US20180035497A1

公开(公告)日：2018-02-01

申请号：US15548905

申请日：2016-01-21

Applicant: LG INNOTEK CO., LTD.

Inventor： Min Hak KIM ,  Do Yub KIM ,  Jae Hun YOON ,  Kwang Jae LEE ,  Seung Beom JEONG

IPC: H05B33/08

CPC classification number: H05B33/083 ,  H05B33/0809 ,  H05B33/0827 ,  H05B33/089

Abstract: One embodiment relates to a device for driving a light emitting diode, the device controlling a plurality of light emitting diode arrays connected in series, and comprising: a rectifying unit for rectifying an alternating current signal so as to output the rectified signal; and a control unit for sensing the level of the rectified signal, comparing the sensed level of the rectified signal with a reference voltage, and aligning a first group among the plurality of light emitting diode arrays and a second group among the plurality of light emitting diode arrays in series or in parallel on the basis of the comparison result, wherein the control unit successively drives the light emitting diode arrays of the first and second groups connected in parallel or successively drives the light emitting diode arrays of the first and second groups connected in series on the basis of the magnitude of the sensed level of the rectified signal.

公开(公告)号：US20190101277A1

公开(公告)日：2019-04-04

申请号：US16082494

申请日：2017-03-10

Applicant: LG INNOTEK CO., LTD.

Inventor： Min Ji KIM ,  Do Yub KIM ,  Min Hak KIM ,  Yeong Seok YU

IPC: F21V29/70 ,  F21V29/505 ,  F21V29/507 ,  F21V19/00

Abstract: An embodiment comprises: a board; a light-emitting module including at least one light-emitting element arranged in a first region of the board and a driving element, arranged in a second region of the board, for driving the at least one light-emitting element; a heat-dissipating member disposed below the lower surface of the board; and a heat-dissipating pad disposed between the board and the heat-dissipating member, wherein the heat-dissipating pad comprises: a heat-dissipating plate disposed on the upper surface of the heat-dissipating member; and a protruding part protruding from the upper surface of the heat-dissipating plate and supporting the lower surface of the first region of the board, and the lower surface of the board is spaced apart from the heat-dissipating plate.

公开(公告)号：US20170321863A1

公开(公告)日：2017-11-09

申请号：US15329471

申请日：2015-05-04

Applicant: LG INNOTEK CO., LTD.

Inventor： Ki Soo KWON ,  Do Yub KIM ,  Min Hak KIM ,  Jae Hun YOON ,  Seung Beom JEONG

IPC: F21S8/10 ,  G08G1/095 ,  G09G3/20

CPC classification number: F21S43/14 ,  F21S41/64 ,  F21S43/239 ,  G08G1/095 ,  G09G3/2003 ,  H01L25/0753 ,  H01L33/48 ,  H05B33/08 ,  H05B33/083

Abstract: A light emitting module of an embodiment comprises: (1-1)th to (1-M)th (where M is a positive integer equal to or greater than 2) light emitting elements connected with each other; (2-1)th to (2-N)th (where N is a positive integer equal to or greater than 1) light emitting elements connected in parallel with a (1-m)th (1≦m≦M) light emitting elements which is one of the (1-1)th to (1-M)th light emitting elements; and an on/off controller controlling to turn the (1-1)th to (1-M)th light emitting elements and (2-1)th to (2-N)th light emitting elements on or off according to a level of an operation signal. The on/off controller comprises a first on/off control unit controlling to turn the (1-m)th light emitting element and (2-1)th to (2-N)th light emitting elements on or off, and a second on/off control unit controlling to turn the remaining light emitting elements on or off, excluding the (1-m)th light emitting element from the (1-1)th to (1-M)th light emitting elements, wherein the first on/off control unit compensates for a change in a second current flowing in the (2-1)th to (2-N)th light emitting elements, depending on the temperature, in conjunction with a first current flowing in the (1-m)th light emitting element.

公开(公告)号：US20200146125A1

公开(公告)日：2020-05-07

申请号：US16630678

申请日：2018-07-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Ji Woong JO ,  Jong Hyun LEE ,  Jae Ho CHOI ,  Min Hak KIM ,  Min Su SEO ,  Seung Wan BAEK

IPC: H05B45/392 ,  H05B45/14 ,  H01L29/866

Abstract: An LED lighting device according to one embodiment of the present invention comprises: an LED array; a first control unit for controlling the dimming of the LED array; a second control unit for transmitting, to the first control unit, a dimming control signal for controlling the dimming of the LED array; and a transformer comprising a primary coil and a secondary coil spaced apart from each other, wherein the first control unit is connected to the primary coil, the second control unit is connected to the secondary coil, the primary coil and the secondary coil are insulated from each other, the transformer transmits a pulse signal that repeats on/off at predetermined intervals from the first control unit to the second control unit, and, when the pulse signal transmitted from the first control unit to the second control unit via the transformer becomes off, the dimming control signal is transmitted from the second control unit to the first control unit via the transformer and is used to control the dimming of the LED array.

公开(公告)号：US20170110640A1

公开(公告)日：2017-04-20

申请号：US15297944

申请日：2016-10-19

Applicant: LG INNOTEK CO., LTD.

Inventor： Min Hak KIM ,  Do Yub KIM ,  Myung Jin SONG

IPC: H01L33/64 ,  H01L33/60 ,  H01L33/62 ,  F21S8/06 ,  F21V29/77 ,  F21V15/01 ,  F21V23/00 ,  F21V21/08 ,  H01L33/48 ,  F21V29/503

CPC classification number: H01L33/644 ,  F21S8/026 ,  F21S8/06 ,  F21V15/01 ,  F21V21/0832 ,  F21V23/005 ,  F21V29/503 ,  F21V29/773 ,  F21Y2115/10 ,  H01L33/483 ,  H01L33/60 ,  H01L33/62 ,  H05K1/0209 ,  H05K2201/066 ,  H05K2201/09781 ,  H05K2201/10106

Abstract: Embodiments provide an illumination apparatus including a light emitting module including a board, at least one light emitting device disposed in a first region of the board and drive devices disposed in a second region of the board, a heat dissipation member, and dummy pads disposed around the at least one light emitting device, the heat dissipation member including a base, a core, and heat dissipation fins connected to the side surface of the core and the lower surface of the base. The first region is one region of the upper surface of the board, located within a designated range from the center of the board, and the second region is another region of the upper surface of the board, spaced apart from the first region by a first distance and spaced apart from the edge of the upper surface of the board by a second distance.

公开(公告)号：US20140313731A1

公开(公告)日：2014-10-23

申请号：US14258851

申请日：2014-04-22

Applicant: LG Innotek Co., Ltd.

Inventor： Jae O KWAK ,  In Soo PARK ,  Ki Hyun KIM ,  Min Hak KIM ,  Eun Hwa KIM ,  Hee Soo LIM

IPC: F21V29/00 ,  F21K99/00

CPC classification number: F21V29/70 ,  F21K9/20 ,  F21K9/27 ,  F21K9/69 ,  F21V17/06 ,  F21V17/104 ,  F21V17/164 ,  F21V29/004 ,  F21Y2103/10 ,  F21Y2115/10

Abstract: A lighting device may be provided that comprises: a heat sink comprising a top surface and coupling structures which comprise a first coupling structure and a second coupling structure formed on a side surface of the heat sink; a light source disposed on the top surface of the heat sink; a lens unit disposed on the light source and comprising a first coupling portion which is coupled to the first coupling structure of the heat sink; and a cover unit comprising an optical member which is disposed on the lens unit, and a second coupling portion which is coupled to the second coupling structure of heat sink.

Abstract translation: 可以提供照明装置，其包括：散热器，其包括顶表面和耦合结构，所述耦合结构包括形成在散热器的侧表面上的第一耦合结构和第二耦合结构; 设置在散热器的顶表面上的光源; 透镜单元，设置在所述光源上并且包括耦合到所述散热器的所述第一耦合结构的第一耦合部分; 以及包括设置在透镜单元上的光学构件的盖单元和耦合到散热器的第二耦合结构的第二耦合部分。