Seoul Viosys Co., Ltd.

Jong Min Jang

Jong Hyeon Chae

Won Young Roh

Min Woo Kang

Chang Yeon Kim

Daewoong Suh

Hyun A Kim

Joon Sup Lee

Dae Woong Suh

Joon Sub Lee

Ho Joon Lee

Seong Gyu Jang

Chang Youn Kim

Seon Min Bae

Dae Sung Cho

Kyu Ho Lee

Chi Hyun In

Chung Hoon Lee

Jae Hee Lim

Myoung Hak Yang

Chae Hon Kim

Kyoung Wan Kim

Se Hee Oh

Sung Hyun Lee

Hwa Mok Kim

Chang Suk Han

So Ra Lee

Jong Kyun You

Da Hye Kim

Chang Hoon Kim

Dae Seok Park

Hee Sub Lee

Jin Hwa Shin

Seung Jo Yun

Jong Hyeon Chai

Chi Hyung In

A light emitting device including a substrate having a protruding pattern on an upper surface thereof, a first sub-unit disposed on the substrate, a second sub-unit disposed between the substrate and the first sub-unit, a third sub-unit disposed between the substrate and the second sub-unit, a first insulation layer at least partially in contact with side surfaces of the first, second, and third sub-units, and a second insulation layer at least partially overlapping with the first insulation layer, in which at least one of the first insulation layer and the second insulation layer includes a distributed Bragg reflector.

Light emitting device and light emitting module having the same

A light emitting device for a display including a transparent member laterally extending in a first direction and having a first region and a second region surrounding the first region, first to third light emission regions disposed on the transparent member, a support substrate, first to fourth electrode pads disposed between the transparent member and the support substrate, and vias electrically connecting the electrode pads to the light emission regions, respectively, in which the fourth electrode pad is electrically connected to at least one of the vias, each light emission region is disposed in the first region and does not overlap the second region in a second direction, and the fourth electrode pad overlaps one of the vias and one of the light emission regions in the second direction, and the one of the vias and the one of the light emission regions are separated from each other.

LED unit for display and display apparatus having the same

A unit pixel including a first light emitting stack; a second light emitting stack disposed under the first light emitting stack, and having an area greater than that of the first light emitting stack; a third light emitting stack disposed under the second light emitting stack, and having an area greater than that of the second light emitting stack, in which at least one of the first through third light emitting stacks includes a side surface having an inclination angle within a range of about 30 degrees to about 70 degrees with respect to a first plane parallel to a top surface of the third light emitting stack.

Unit pixel for LED display and LED display apparatus having the same

A light emitting device for a display including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode pads disposed below the first LED sub-unit, and a planarization layer disposed between the first and second LED sub-units and being light transmissive, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.

Light emitting device with LED stack for display and display apparatus having the same

A light emitting device including a board, a first stacked structure configured to emit light having a first wavelength, a second stacked structure configured to emit light having a second wavelength, a third stacked structure configured to emit light having a third wavelength, a first connection electrode electrically connected to the first stacked structure, the second stacked structure, and the third stacked structure, and a protection material covering at least a portion of the first connection electrode, in which each of the first, second, and third stacked structures is configured to selectively emit light while being connected to the first connection electrode, and the protection material is configured to transmit at least 50% of light having the first wavelength, light having the second wavelength, and light having the third wavelength upon operation of each of the first, second, and third stacked structures.

LED chip and manufacturing method of the same

A light emitting device including a printed circuit board having a front surface and a rear surface, at least one light emitting source disposed on the front surface to emit light in a direction away from the printed circuit board, and a molding layer surrounding the light emitting source, in which the light emitting source includes a light emitting structure, a substrate disposed on the light emitting structure, and a plurality of bump electrodes disposed between the light emitting structure and the printed circuit board, the molding layer covers an upper surface of the substrate and a fine concavo-convex part is formed on a surface of the molding layer exposed to the outside, and the molding layer has a first thickness to transmit at least a fraction of light emitted from the light emitting source, and includes a filler to change a direction of emitted light.

Light emitting device package and application thereof

A light emitting device including first, second, and third light emitting stacks each including first and second conductivity type semiconductor layers, a first lower contact electrode in ohmic contact with the first light emitting stack, and second and third lower contact electrodes respectively in ohmic contact with the second conductivity type semiconductor layers of the second and third light emitting stacks, in which the first lower contact electrode is disposed between the first and second light emitting stacks, the second and third lower contact electrodes are disposed between the second and third light emitting stacks, and the first, second, and third lower contact electrodes include transparent conductive oxide layers.

Light emitting device for display and led display apparatus having the same

A light emitting device including a first light emitter, a second light emitter, and a third light emitter, each including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer. An adhesive layer includes a first adhesive portion disposed between the first light emitter, and the second light emitter, and a second adhesive portion disposed between the second light emitter and the third light emitter, in which the second light emitter is disposed between the first light emitter and the third light emitter, and the first adhesive portion and the second adhesive portion are optically transmitting and connect adjacent light emitters.

A light emitting device for a display including: a base layer; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit on the base layer; and a supporting layer covering the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit, in which the third LED sub-unit is configured to emit light having a shorter wavelength than that of light emitted from the first LED sub-unit, and a luminous intensity ratio of light emitted from the third LED sub-unit and the second LED sub-unit is configured to be about 6:1.

Light emitting device for display and light emitting package having the same

A display apparatus including a substrate, and pixel regions and at least one separation region between the pixel regions, each pixel region including a first LED stack, a second LED stack adjacent to the first LED stack, a third LED stack adjacent to the second LED stack and each having a side surface forming a first angle, a second angle, and a third angle with the substrate, respectively, electrode pads electrically connected to the first, second, and third LED stacks, and an insulation layer disposed on at least one of the first, second, and third LED stacks, in which the first LED stack is configured to emit light having a longer peak wavelength than that emitted from the second and third LED stacks, and the first angle is different from the second and third angles.

A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, a first p-type semiconductor layer, and a first transparent electrode, a second light emitting part disposed over the first light emitting part and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode, and a third light emitting part disposed over the second light emitting part and including a third n-type semiconductor layer, a third active layer, a third p-type semiconductor layer, and a third transparent electrode, in which the light emitting device has substantially a quadrangular shape when viewed from the top, and has first to fourth corners.

Light emitting device including multiple light emitting parts

A light emitting device including a first light emitting part, a second light emitting part disposed on a first surface of the first light emitting part, and a third light emitting part disposed on a first surface of the second light emitting part, a first contact member contacting a surface of a second n-type semiconductor layer of the second light emitting part, an ohmic electrode electrically connected to a third p-type semiconductor layer of the third light emitting part, and an adhesive layer disposed between the second light emitting part and the third light emitting part, in which the first contact member extends toward the first light emitting part to be electrically connected to a first n-type semiconductor layer of the first light emitting part, and the adhesive layer extends toward the ohmic electrode.

Light emitting device having a stacked structure

A display device including a circuit board, and pixels each including a light emitting structure including epitaxial stacks and having a light emitting area defined by the epitaxial stacks, an encapsulating member covering a side surface and an upper surface of the light emitting structure, bump electrodes disposed on the light emitting structure, at least a portion of each bump electrode overlapping with the light emitting area, and fan-out lines disposed on the encapsulating member and electrically connected to the light emitting structure through the bump electrodes, in which at least a first portion of a surface of the fan-out lines is exposed to the outside to receive electrical signal for independent driving of the light emitting structure, and the first portion of the fan-out lines does not overlap the light emitting area in a plan view.

Light emitting device package and display device having the same

A light emitting diode including a side reflection layer. The light emitting diode includes: a semiconductor stack and a light exit surface having a roughened surface through which light generated from an active layer is emitted; side surfaces defining the light exit surface; and a side reflection layer covering at least part of the side surfaces. The light exit surface is disposed over a first conductivity type semiconductor layer opposite to the ohmic reflection layer, all layers from the active layer to the light exit surface are formed of gallium nitride-based semiconductors, and a distance from the active layer to the light exit surface is 50 μm or more.

Light emitting diode having side reflection layer

A light emitting package including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a plurality of connection electrodes electrically connected to at least one of the first, second, and third LED sub-units, the connection electrodes having side surfaces and covering a side surface of at least one of the first, second, and third LED sub-units, a first passivation layer surrounding at least the side surfaces of the connection electrodes, an insulating layer having first and second opposed surfaces, with the first surface facing the LED sub-units, and a first electrode disposed on the first surface of the insulating layer and connected to at least one of the connection electrodes.

Growing community of inventors

Ansan-si, South Korea

Jong Min Jang