Lg Innotek Co., Ltd.

Seung Beom Jeong

Young Jin Kim

Do Yub Kim

Jae Hun Yoon

Min Hak Kim

Ki Hyun Kim

Chul Ho Jang

Ki Soo Kwon

Jong Chan Park

Sung Ho Hong

Kwang Jae Lee

Yeong Seok Yu

Eon Ho Son

According to an embodiment, disclosed is a curing-device comprising: a stage; a light emitting module including a substrate disposed on the stage and a plurality of light emitting elements disposed on the substrate; and a plurality of transparent blocks disposed between the light emitting module and the stage, wherein the substrate includes a plurality of first sections and a plurality of second sections which are disposed in a first direction, the intervals in the first direction between the light emitting elements disposed in the first sections is smaller than the intervals in the first direction between the light emitting elements disposed in the second sections, and the plurality of transparent blocks are disposed on the first sections.

Curing-device

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.

Device for driving light emitting element

A light emitting module of an embodiment comprises: (1-1)to (1-M)(where M is a positive integer equal to or greater than 2) light emitting elements connected with each other; (2-1)to (2-N)(where N is a positive integer equal to or greater than 1) light emitting elements connected in parallel with a (1-m)(1&#x2264;m&#x2264;M) light emitting elements which is one of the (1-1)to (1-M)light emitting elements; and an on/off controller controlling to turn the (1-1)to (1-M)light emitting elements and (2-1)to (2-N)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)light emitting element and (2-1)to (2-N)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)light emitting element from the (1-1)to (1-M)light emitting elements, wherein the first on/off control unit compensates for a change in a second current flowing in the (2-1)to (2-N)light emitting elements, depending on the temperature, in conjunction with a first current flowing in the (1-m)light emitting element.

Light emitting module

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.

Device for driving light emitting diode, and light emitting module including same

A lighting module may be provided that comprises: an optical plate; a base frame including a central frame disposed on the optical plate, a first frame coupled to the central frame, and a second frame coupled to the first frame; a side frame coupled between the optical plate and the second frame of the base frame; and a light source including a substrate disposed on the side frame and a light emitter disposed on the substrate, wherein the second frame is disposed on the light source, and wherein the second frame has an inner surface reflecting light from the light source to at least one of the first frame and the central frame.

Growing community of inventors

Seoul, South Korea

Seung Beom Jeong