Lg Chem, Ltd

Jung Hwan Yoon

Bu Gon Shin

Jeong Ho Park

Eun Kyu Her

So Young Choo

Song Ho Jang

Chung Wan Kim

Yeong Rae Chang

Jin Young Park

Yeon Jae Yoo

A smaller and lighter diffraction light guide plate, and a method of manufacturing the same.

Diffraction light guide plate and method of manufacturing diffraction light guide plate

A diffraction light guide plate, including: a first diffraction substrate; and a second diffraction substrate provided on the first diffraction substrate. The first diffraction substrate includes a first diffraction grating layer on one surface and a second diffraction grating layer on an opposite surface. The second diffraction substrate includes a third diffraction grating layer on one surface and a stress compensation layer on an opposite surface. The first diffraction grating layer separates light having a wavelength of 550 nm or more and 700 nm or less, the second diffraction grating layer separates light having a wavelength of 400 nm or more and 550 nm or less, the third diffraction grating layer separates light having a wavelength of 450 nm or more and 650 nm or less, and the stress compensation layer has stress in the same direction as a direction of stress of the third diffraction grating layer.

The present invention relates to a method for forming an amorphous layer on one surface of a second substrate through a simple method of performing laser irradiation on a multilayered metal layer provided on a first substrate.

Method for producing amorphous thin film

A method of manufacturing a module having multiple pattern areas, a module having multiple pattern areas according to the method, and a method of manufacturing a diffraction grating module or a mold for a diffraction grating module. The method of manufacturing a module having multiple pattern areas comprises: disposing a first substrate having a first pattern on a first base substrate; forming a first cutting line on the first substrate; forming a second cutting line on the first substrate; removing any one of a first area defined by the first cutting line and a second area defined by the second cutting line from the first substrate to form a removed area on the first substrate; disposing a second base substrate having a second pattern different from the first pattern in the removed area; and removing the first substrate from the base substrate without removing the first and second areas.

Method of manufacturing module having multiple pattern areas, module having multiple pattern areas according to the method, and method of manufacturing diffraction grating module or mold for diffraction grating module

A plasma etching method using a Faraday cage, including: providing an etch substrate in a Faraday cage, where the etch substrate includes a metal mask provided on one surface thereof, and where an upper surface of the Faraday cage is provided with a mesh portion; a first patterning step of forming a first pattern area on the etch substrate; and a second patterning step of forming a second pattern area on the etch substrate after shielding at least a part of the mesh portion with a shutter. The first pattern area includes a first groove pattern having a depth gradient of 0 to 40 nm per 5 mm, and the second pattern area includes a second groove pattern having a depth gradient of 50 to 300 nm per 5 mm.

Plasma etching method using faraday cage

The present invention relates to a method of manufacturing a mold for a diffraction grating light guide plate by using two mask films, the mold having first to fourth pattern portions provided on one surface thereof, and to a method of manufacturing a diffraction grating light guide plate.

Method of manufacturing mold for diffraction grating light guide plate and method of manufacturing diffraction grating light guide plate

The present invention relates to a method of manufacturing a mold substrate for a diffraction lattice light guide plate, and a method of manufacturing a diffraction lattice light guide plate.

Method of manufacturing mold substrate for diffraction lattice light guide plate, and method of manufacturing diffraction lattice light guide plate

A plasma etching method using a Faraday cage, comprising: providing a Faraday cage having a mesh portion on an upper surface thereof in a plasma etching apparatus; providing a quartz substrate having a metal mask with an opening provided on one surface of the metal mask in the Faraday cage; and patterning the quartz substrate with plasma etching.

Plasma etching method using Faraday cage

The present invention relates to a plastic film, and more specifically to a plastic film having excellent flexibility while exhibiting high hardness. According to the present invention, the plastic film exhibits flexibility, bending property, high hardness, scratch resistance and high transparency, despite its thin thickness, and hardly has a risk of damaging the film even in repeated, continuous bending or long-time folding state, and thereby can be usefully applied to flexible mobile devices, display devices, front face and display unit of various instrument panels, and the like.

Growing community of inventors

Daejeon, South Korea

Jung Hwan Yoon