Lg Chem, Ltd

Jae Jin Kim

Bu Gon Shin

Dae Han Seo

Min Soo Song

Sang Choll Han

Cheol-Hee Park

Jae Hyun Kim

Shin Hee Jun

Han Nah Jeong

Chee-Sung Park

Jin Mi Jung

Jong Byung Lee

Jeong Ho Park

Sang Yun Jung

Eun Kyu Seong

Su Jeong Lee

Se Woo Yang

Tae Su Kim

Hyun Jee Yoo

Ji Young Hwang

Hyun Suk Kim

Sin Young Kim

Jung Ok Moon

Eun Joo Choi

Tae Hee Kim

Ha Na Lee

Seong Min Park

Jung Woo Lee

Da Mi Lee

Byung Mook Kim

Kwang Han Park

Dong Chang Choi

Jinmi Jung

Eun Ho Kho

Yujin Jeong

Jeongho Park

Hyun Joo Son

Jongbyung Lee

A head mounted display is disclosed herein. In some embodiments, a head mounted display includes a lens unit configured to be disposed in front of an eye of a wearer; an holographic optical element disposed on an eye side surface or a surface opposite the eye side surface of the lens unit; and an image display unit configured to be disposed on a lateral side of the eye of the wearer and configured to output image display light. The image display unit includes at least one of a liquid crystal display panel or an organic light emitting display panel to output the image display light toward the holographic optical element, and the holographic optical element diffracts the image display light and reflects the diffracted image display light toward the eye of the wearer.

Head mounted display

A holographic waveguide includes a light guide unit configured to guide lights; a first holographic optical element disposed on one surface or the other surface of the light guide unit and configured to diffract an input light; a second holographic optical element disposed on any one of the one surface and the other surface, and configured to receive a light diffracted by the first holographic optical element and to direct a part of the received light to the other one of the one surface and the other surface; a third holographic optical element disposed on a surface, and configured to receive diffracted lights by the second holographic optical element and to guide the lights; and a fourth holographic optical element configured to receive a diffracted light by the third holographic optical element, and to allow the light to be output from the light guide unit.

Holographic light guide plate

An embodiment according to an aspect of the present disclosure provides a device for manufacturing a display lens, a method for manufacturing a display lens using the device, and a head-mounted display device including the display lens manufactured thereby. The device for manufacturing a display lens including a holographic optical element formed by recording a hologram on a photosensitive substrate, in which a substrate is coated with a photosensitive material, through irradiation of laser beams includes: a first laser light incidence unit configured to cause first laser light, converging along an irradiation direction, to be incident on one surface of the photosensitive substrate; and a second laser light incidence unit configured to cause second laser light, diverging at a plurality of points along an irradiation direction, to be incident on the other surface of the photosensitive substrate.

Display lens manufacturing apparatus and method, and head-mounted display device comprising display lens manufactured thereby

A method of manufacturing a holographic optical element, including: irradiating a first surface of a photosensitive substrate with a first layer, and irradiating a second surface of the photosensitive substrate with a second laser. The light emitted by the first laser is spread in an irradiation direction and the light emitted by the second laser is collected in the irradiation direction to form a plurality of groups and a plurality of overlapping angles formed by a progress direction of the light emitted by the first laser and the progress direction of the light emitted by the second laser at a predetermined location of a photosensitive area, and each of the plurality of the overlapping angles are different from each other. A display device including the holographic optical element measured using this method.

Manufacturing method of holographic optical element and display device including holographic optical device manufactured thereby

The present application relates to an optical fingerprint recognition system and a mobile device comprising the same. The optical fingerprint recognition system is used without changing the original structure or configuration of the mobile device because it has a simple structure and a compact size. The optical fingerprint recognition system and the mobile device having excellent user identification or authentication capability through fingerprints are provided.

Optical fingerprint recognition system and mobile device comprising the same

The present application provides a replicating method and a replicating device of a transmission type holographic optical element capable of mass-replicating the transmission type holographic optical element by a continuous and economical process.

Hologram replicating method and hologram replicating device

The present application relates to an optical isolation device. The present application provides an optical isolation device having a high transmittance in a forward direction and an excellent isolation ratio. Such an optical isolation device can be applied to various applications such as the field of optical communication or laser optics, the field of security or privacy protection, brightness enhancement of displays, or a use for hiding and covering.

Optical isolation device

The present application relates to a sheet comprising, in a single layer, a first light control part capable of providing light always totally reflected only in a specific interlayer laminate structure among sheet constructions; and a second light control part capable of providing light whose total reflection is determined according to a fingerprint pattern in contact with the surface layer of the sheet by changing a part of the light provided from the first light control part and totally reflected in the specific interlayer laminate structure at a predetermined angle and emitting it to reach the surface layer of the sheet without being totally reflected in the specific interlayer laminate structure, and a device thereof. The sheet has excellent user identification or authentication capability through a fingerprint and can be applied to a large area display device to recognize a plurality of fingerprint patterns without being influenced by each other.

Sheet and an optical fingerprint scanner

A method for controlling a digital device according to the present application can control the device so as to execute a command corresponding to a single fingerprint or a plurality of fingerprints using a sheet capable of simultaneously recognizing a plurality of fingerprints. Accordingly, a user's usability can be greatly improved, and a complicated encryption function using a plurality of fingerprints can be implemented, so that the security of the digital device can be greatly improved.

Method for controlling a digital device

A sheet for optical fingerprint recognition or input, and a device including such a sheet. The sheet can detect fingerprint information having high contrast with a simple structure and can be applied to a large area display device to recognize a plurality of fingerprint patterns without being influenced by each other.

The present application relates to an encapsulation film, a method of manufacturing the same, an organic electronic device including the same, and a method of manufacturing the organic electronic device using the same. The present application provides an encapsulation film which can be formed to have a structure in which moisture or oxygen flowing from the outside into an organic electronic device can be effectively blocked, has excellent handling properties and processability, and also has excellent bonding properties with an organic electronic element and durability.

Encapsulation film

The present invention relates to a composition for forming a conductive pattern by irradiation of electromagnetic waves capable of allowing excellent formation of a conductive micro-pattern on various polymer resin products comprising a polycarbonate resin or on resin layers by a simple method such as irradiation of electromagnetic waves and plating, and capable of reducing the degradation of the physical properties of the resin products or resin layers caused by the irradiation of electromagnetic waves, a method for forming a conductive pattern using the same, and a resin structure having a conductive pattern. The composition for forming a conductive pattern by irradiation of electromagnetic waves comprises: a polymer resin comprising a polycarbonate resin; and an electromagnetic wave-absorbing inorganic additive which absorbs an electromagnetic wave having a wavelength in the infrared region and satisfies the characteristic that a laser sensitivity Ls defined by a predetermined relational expression is 1.6&#x3c;&#x2212;log(Ls)&#x3c;6.0.

Composition for forming conductive pattern by irradiation of electromagnetic waves, method for forming conductive pattern using same, and resin structure having conductive pattern

The present invention relates to a photomask and a method for manufacturing a column spacer for a color filter using the same, and according to one aspect of the present invention, a photomask is provided, which comprises a central region having a first transmittance, a first perimeter region surrounding the central region and having a second transmittance lower than the first transmittance, and a second perimeter region surrounding the first perimeter region and having the first transmittance.

Photomask and method for manufacturing column spacer for color filter using the same

Provided are a method for forming conductive pattern by direct radiation of an electromagnetic wave capable of forming fine conductive patterns on various kinds of polymer resin products or resin layers by a simplified process, and appropriately implementing the polymer resin products having white color or various colors, and the like, even without containing specific inorganic additives in the polymer resin itself, and a resin structure having the conductive pattern formed therefrom. The method for forming the conductive pattern by direct radiation of the electromagnetic wave includes: forming a first region having a predetermined surface roughness by selectively radiating the electromagnetic wave on a polymer resin substrate containing titanium dioxide (TiO); forming a conductive seed on the polymer resin substrate; forming a metal layer by plating the polymer resin substrate having the conductive seed formed thereon; and removing the conductive seed and the metal layer from a second region of the polymer resin substrate, wherein the second region has surface roughness smaller than that of the first region.

Method for forming conductive pattern by direct radiation of electromagnetic wave, and resin structure having conductive pattern thereon

This disclosure relates to a composition for forming a conductive pattern that enables formation of fine conductive pattern on various polymer resin products or resin layers by a simplified process, and more effectively fulfills requirements of the art such as realization of various colors and the like, and a resin structure having a conductive pattern. The composition for forming a conductive pattern comprises a polymer resin; and a non-conductive metal compound including a first metal and a second metal, having a NASICON crystal structure represented by the following Chemical Formula 1, wherein a metal nucleus including the first metal or an ion thereof is formed from the non-conductive metal compound by electromagnetic irradiation.

Growing community of inventors

Daejeon, South Korea

Jae Jin Kim