Lg Electronics Inc.

Juchan Choi

Bongchu Shim

Kiseong Jeon

Changseo Park

Jideok Kim

Hyunwoo Cho

Sangok Yeo

Seulbitna Lee

Discussed is a display device including: a substrate; a power wiring and a ground wiring disposed on the substrate and spaced apart from each other; a driving thin film transistor (TFT) disposed on the substrate and having a source terminal electrically connected to the ground wiring; at least one insulating layer disposed on the substrate; and a pair of assembly electrodes spaced apart from each other between the at least one insulating layer and the substrate, wherein the pair of assembly electrodes is configured to generate an electric field as a voltage is applied to any one of the pair of assembly electrodes.

Display apparatus using semiconductor light-emitting devices

A removal module for removing a mis-assembled semiconductor light emitting diode includes a housing having an inner space formed by an upper plate having a nozzle hole and a lower plate spaced apart from the upper plate; a fluid supply part configured to supply a fluid outside the housing to the inner space; and a fluid control part configured to control spray of the fluid supplied to the inner space through the nozzle hole by adjusting a pressure of the inner space.

Module for removing misassembled semiconductor light-emitting element, and method using same to remove misassembled semiconductor light-emitting element

According to an embodiment of the present invention, a removal module using an electric field and a magnetic field so as to self-assemble, on cells arranged in a matrix form of an assembly substrate, semiconductor light-emitting elements introduced in a fluid accommodated in a chamber, and then remove a semiconductor light-emitting element mis-assembled with the assembly substrate comprises: a fluid supply unit for supplying the fluid; and a housing of which one side is connected to the fluid supply unit, an upper plate is adjacent to the assembly substrate, and a lower plate is adjacent to the chamber, wherein the upper plate has: a nozzle hole allowing communication between the inner space of the housing and the inner space of the chamber so that the fluid supplied from the fluid supply unit is injected at a site in which the semiconductor light-emitting element is mis-assembled on the assembly substrate; and one pair of partition parts facing each other with the nozzle hole as the center thereof.

Module for removing mis-assembled semiconductor light-emitting element and method for removing mis-assembled semiconductor light-emitting element by using same

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

A MEMS scanner is disclosed. The MEMS scanner includes a mirror rotatable about at least one rotational axis, a gimbal disposed outside the mirror, a spring connected to the gimbal on the same line as the rotational axis of the mirror, a substrate spaced apart from an outer surface of the gimbal and connected to the gimbal via the spring, a coil disposed on the gimbal so as to adjust a rotational angle of the mirror by generating electromagnetic force by interaction with a magnetic field, which is first formed therearound, when current flows therethrough, and a plurality of combs formed between the substrate and at least one of the spring and the gimbal adjacent to the substrate so as to detect the rotational angle of the mirror.

MEMS scanner for detecting rotational angle of mirror

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

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

Juchan Choi