Lg Electronics Inc.

Bongchu Shim

Hyunwoo Cho

Changseo Park

Dohee Kim

Kiseong Jeon

Gunho Kim

Yongil Shin

Juchan Choi

Hyunho Lee

Junghoon Kim

Byungjoon Rhee

Byoungkwon Cho

Dohwan Yang

Chisun Kim

Yonghyun Kim

Jinsung Kim

Jisu Kim

Wonjae Chang

Dami Kim

Hyeyoung Yang

Janghwan Cho

Kyoungtae Wi

Yongju Yang

Jideok Kim

Seongmin Moon

Youngdo Kim

Jisoo Ko

Hyunho Oh

Seongmoon Cho

Gyoungsoo Kim

Jaewoon Lee

Dayeon Kang

Kangsun Lee

Younjae Lee

Seokjung Hyun

Seulbitna Lee

Jeankun Oh

Guhan Kwon

A device for collecting semiconductor light emitting diodes according to an embodiment of the present disclosure includes an electromagnet portion disposed in a fluid chamber into which semiconductor light emitting diodes including a magnetic material are put to form a magnetic field when power is applied, a power supply portion connected to the electromagnet portion and applying power to the electromagnet portion, and a driving portion moving the electromagnet portion in a width direction, in a longitudinal direction, and in a height direction of the fluid chamber, in which the electromagnet portion guides the semiconductor light emitting devices to a surface on which a magnetic field is formed when power is applied.

Apparatus and method for collecting semiconductor light emitting diodes

A method for manufacturing a display device can include forming an assembly electrode on a substrate; applying an insulating layer on the assembly electrode; disposing a partition wall on the insulating layer; defining an assembly groove in the partition wall; providing an light emitting diode (LED) having an assembly face corresponding to a shape of the assembly groove in the partition wall; and assembling the assembly face of the LED into the assembly groove in the partition wall, in which the LED includes a first electrode, a first semiconductor layer, an active layer, a second semiconductor layer, and a second electrode stacked in a first direction to form a stacked structure.

Display device using micro-LED, and manufacturing method therefor

Discussed is a self-assembly apparatus for a plurality of semiconductor light-emitting devices, and a method for self-assembly of the plurality of semiconductor light-emitting devices, whereby the apparatus includes a chamber accommodating the plurality of semiconductor light-emitting devices and a fluid; a transferor to transfer a substrate to an assembly position; a magnet to apply a magnetic force to the plurality of semiconductor light-emitting devices; a position controller to control a position of the magnet; and a vibration generator in contact with the fluid to generate a vibration in the fluid to separate the plurality of semiconductor light-emitting devices from each other while in the fluid, wherein an electric field is produced in the substrate while the plurality of semiconductor light-emitting devices are moved according to a change of the position of the magnet.

Self-assembly apparatus and method for semiconductor light-emitting devices

The present invention relates to a display device having a structure in which an assembly substrate on which self-assembly has taken place can be used as a final substrate, and a method for manufacturing same. According to an embodiment of the present invention, first-conductive-type electrodes of vertical-type semiconductor light-emitting elements can be connected to seed metal, which is used as a wiring electrode, via a solder part, and thus there is the effect of directly using, as a final substrate, an assembly substrate on which the vertical-type semiconductor light-emitting elements are self-assembled, without an additional transfer process.

Display device using semiconductor light-emitting elements and manufacturing method therefor

The present invention provides an assembly substrate used in a method for manufacturing a display device which mounts semiconductor light emitting devices on a predetermined position of an assembly substrate by using an electric field and a magnetic field. Specifically, the assembly substrate is characterized by comprising: a base part; a plurality of assembly electrodes formed extending in one direction and disposed on the base part; a dielectric layer laminated on the base part so as to cover the assembly electrodes; a partition wall formed on the base part and including a plurality of grooves for guiding the semiconductor light emitting devices to a predetermined position; and a metal shielding layer formed on the base part, wherein each of the plurality of grooves penetrates the partition wall so as to form a seating surface on which the guided light emitting devices are seated, and the metal shielding layer overlaps with a part of the seating surface such that an electric field formed on a part of the seating surface is shielded.

Method for manufacturing display device, and substrate for manufacturing display device

Discussed is an assembly board for use in a method for manufacturing a display device which allows semiconductor light emitting diodes to be seated at preset positions on the assembly board using an electric field and a magnetic field, the assembly board including a base portion; a plurality of assembly electrodes extending in one direction and disposed on the base portion; a dielectric layer stacked on the base portion to cover the plurality of assembly electrodes; and barrier ribs having a plurality of grooves for guiding the semiconductor light emitting diodes to the preset positions and formed on the base portion, wherein each of the plurality of grooves is arranged to overlap only one assembly electrode of the plurality of assembly electrodes such that an electric field is formed between the plurality of grooves adjacent to each other.

Display device manufacturing method, and substrate for manufacture of display device

Discussed is a display device, including a substrate including a dielectric layer, a plurality of semiconductor light-emitting devices respectively accommodated on the substrate, and a first electrode provided with a plurality of electrode lines arranged on a bottom of the substrate. Each of the first electrode includes a pair of electrode lines spaced from each other on an upper surface of the dielectric layer among the plurality of electrode lines. Each semiconductor light-emitting device is disposed on the pair of electrode lines, and the pair of electrode lines have the same electrical pole.

Display device using semiconductor light-emitting element and manufacturing method therefor

Discussed is a self-assembly apparatus of a semiconductor light emitting device, the self-assembly apparatus including a fluid chamber configured to accommodate a plurality of semiconductor light emitting devices, each semiconductor light emitting device having a magnetic body; a magnet disposed to be spaced apart from the fluid chamber and configured to apply a magnetic force to the plurality of semiconductor light emitting devices; and a position controller connected to the magnet, and configured to control a position of the magnet; and a power supply configured to induce formation of an electric field on a substrate placed at an assembly position so that the plurality of semiconductor light emitting devices are seated at preset positions on the substrate while being moved due to a positional change of the magnet, wherein the position controller transfers the magnet in one direction while rotating the magnet about a rotation axis for the magnet.

Self-assembly apparatus and method for semiconductor light emitting device

Discussed is a display device, including a substrate having an assembly region and a non-assembly region, semiconductor light emitting devices arranged on the substrate, a first wiring electrode and a second wiring electrode extended from each of the semiconductor light emitting devices, respectively, to supply an electric signal to the semiconductor light emitting devices, pair electrodes arranged on the substrate to generate an electric field when an electric current is supplied, and provided with first and second pair electrodes disposed on an opposite side to the first and second wiring electrodes with respect to the semiconductor light emitting devices, a dielectric layer disposed on the pair electrodes, and bus electrodes electrically connected to the pair electrodes, wherein the pair electrodes are arranged in parallel to each other along a direction in the assembly region, and wherein the bus electrodes are disposed in the non-assembly region.

Display device using semiconductor light emitting device and method for manufacturing the same

Discussed is an assembly board including a base portion; a plurality of assembly electrodes extending in one direction and disposed on the base portion at predetermined intervals; a dielectric layer stacked on the base portion to cover the plurality of assembly electrodes; barrier ribs stacked on the dielectric layer and defining cells in which semiconductor light emitting diodes are seated at the predetermined intervals along an extending direction of the plurality of assembly electrodes so as to overlap a portion of the plurality of assembly electrodes; and a voltage applying unit connected to at least opposite ends of the plurality of assembly electrodes to apply one or more voltage signals to the plurality of assembly electrodes, wherein a voltage signal of the same polarity is applied to the plurality of assembly electrodes from the voltage applying unit connected to the opposite ends.

Substrate for manufacturing display device and method for manufacturing display device

The embodiment relates to an intelligent integrated assembly and transfer apparatus. The intelligent integrated assembly and transfer apparatus according to the embodiment can include a fluid chamber, a roller unitand assembly inspection unit. The fluid chambercan accommodate semiconductor light emitting devices. Semiconductor light emitting devicescan be assembled on an assembly substrate. The assembly substratecan be mounted on the roller unit. The roller unitcan rotate the assembly substrate. The assembly inspection unitcan inspect the semiconductor light emitting devicesassembled on the assembly substrate. The roller unitcan include a roller rotated partwhere the assembly substrateis mounted and rotated, a roller driving partfor rotating the roller rotated part, and a magnet head unitfor applying magnetic force to the semiconductor light emitting devicesto be assembled on the assembly substrate

Intelligent integrated assembly and transfer apparatus for semiconductor light emitting device

Discussed is an apparatus for self-assembling semiconductor light-emitting devices, the apparatus including a fluid chamber to accommodate the semiconductor light-emitting devices, each semiconductor light-emitting device having a magnetic body; a magnet to apply a magnetic force to the semiconductor light-emitting devices while an assembly substrate is disposed at an assembly position of the self-assembly apparatus; a power supply to induce formation of an electric field on the assembly substrate to allow the semiconductor light-emitting devices to be seated at a preset positions on the assembly substrate in a process of moving the semiconductor light-emitting devices due to a change in a position of the magnet; and a fluid injector to shoot a fluid to some of the semiconductor light-emitting devices to allow the some of the semiconductor light-emitting devices seated on the assembly substrate to be separated from the assembly substrate.

Apparatus and method for self-assembling semiconductor light-emitting device

Discussed is an assembly apparatus for assembling a semiconductor light emitting diode to a display panel, the assembly apparatus including an assembly module including at least one magnetic member and a magnetic member accommodator having at least one magnetic member accommodation hole, and a rotary module connected to the assembly module to rotate the assembly module along an orbit.

Assembly apparatus for assembling semiconductor light emitting diode to display panel

Discussed is a display device comprising a substrate; a plurality of cells provided with a partition wall protruding on the substrate, and sequentially arranged along one direction; a plurality of semiconductor light-emitting elements respectively accommodated in the plurality of cells; and a first electrode provided with a plurality of electrode lines arranged on a bottom of the plurality of cells, and electrically connected to the plurality of semiconductor light-emitting elements, wherein the bottom of the plurality of cells comprise a first region covered by the plurality of electrode lines, and a second region formed between the plurality of electrode lines.

The present disclosure provides a display device, including a substrate, a plurality of semiconductor light emitting devices arranged on the substrate, a first wiring electrode and a second wiring electrode extended from the semiconductor light emitting devices, respectively, to supply an electric signal to the semiconductor light emitting devices, a plurality of pair electrodes arranged on the substrate to generate an electric field when an electric current is supplied, and provided with first and second pair electrodes formed on an opposite side to the first and second wiring electrodes with respect to the semiconductor light emitting devices, and a dielectric layer formed to cover the pair electrodes, wherein the plurality of pair electrodes are arranged in parallel to each other along a direction.

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Seoul, South Korea

Bongchu Shim