Lg Chem, Ltd

Lg Energy Solution, Ltd.

Silicon Works Co., Ltd.

Shanjin Optoelectronics (Suzhou) Co., Ltd.

Shanjin Optoelectronics (Nanjing) Co., Ltd.

Hansoo Natech Co., Ltd.

Jeong Ho Park

Jin Soo Lee

Su Jin Kim

Ki-Hwan Kim

Bu Gon Shin

Eun Kyu Her

So Young Choo

Jung Hwan Yoon

Sang Choll Han

Seong Min Park

Song Ho Jang

Jae Jin Kim

Chung Wan Kim

Tae Su Kim

Jin Mi Jung

Jong Byung Lee

Moon Chan Lee

Tae Ho Kim

Chang Sun Han

Soo Jin Lee

Yong Hwan Moon

Taebin Ahn

Eun Jeong Lee

Bu Won Son

Hoon Jeong

Yong Gon Lee

Jin Yeong Lee

Young Ik Kim

Young Sang Kim

Yeon Jae Yoo

Eun Ho Oh

Yeong Hun Jung

A debris detection apparatus and a debris detection method, capable of easily detecting a metal debris existing on the surface of an inspection target by emitting electromagnetic waves having a wavelength in a far-infrared band toward the inspection target during a battery manufacturing process and then analyzing the characteristics of reflected waves from the surface of the inspection target through a thermal image recorder.

Foreign substance detection device and detection method

A diffraction light guide plate capable of increasing the area of an output image without increasing the total size thereof and having an advantage that the pupil position of a user is not limited. The diffraction light guide plate comprises first and second diffraction optical elements, wherein the first diffraction optical element is an element capable of receiving light incident onto the first diffraction optical element and outputting the received light toward the second diffraction optical element, and the second diffraction optical element is an element capable of emitting light therefrom out of the incident light from the first diffraction optical element.

Diffraction light guide plate

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 diffractive light guide plate and a display device including the same, the diffractive light guide plate including a light guide unit; a first diffractive optical element including a linear grating repeatedly formed at a predetermined pitch; and a second diffractive optical element disposed in a region distinct from a region where the first diffractive optical element is disposed and including a two-dimensional pattern provided in a region where a virtual first linear pattern repeatedly arranged at a predetermined pitch along a first direction and a virtual second linear pattern repeatedly arranged at a predetermined pitch along a second direction intersect each other, where a horizontal section of the two-dimensional pattern has an elliptical shape and an angle between the long axis of the elliptical shape and a direction perpendicular to an extension direction of the linear grating in the first diffractive optical element is less than 20°.

Diffractive light guide plate and display device comprising same

The present disclosure provides a diffraction light guide plate, including a light guide unit, an input diffraction optical device configured to receive light from a light source and diffract the received light, an intermediate diffraction optical device configured to receive the diffracted light from the input diffraction optical device and extend the received light one-dimensionally by diffraction, and an output diffraction optical device configured to receive the extended light from the intermediate diffraction optical device and output the received light from the light guide unit by diffraction. The intermediate diffraction optical device and the output diffraction optical device are separately disposed in regions divided horizontally on the light guide unit, and the intermediate diffraction optical device includes a main intermediate diffraction optical device and an auxiliary intermediate diffraction optical device, which are disposed separate apart from each other vertically on the light guide unit.

Diffraction light guide plate and display device including the same

A diffractive light guide plate including a light guide unit; an input diffractive optical element that receives lights output from a light source and diffracts the received lights to be guided on the light guide unit; and two output diffractive optical elements disposed in a predetermined region of the light guide unit and having different linear grating patterns from each other, wherein the two output diffractive optical elements are configured so that each one output diffractive optical element receives the lights from the input diffractive optical element and allows the received lights to be directed to the other output diffractive optical element by diffraction, and so that each one output diffractive optical element receives lights from the other output diffractive optical element and allows the received lights to be output from the light guide unit by diffraction, and the two output diffractive optical elements having different linear grating patterns are alternately arranged in at least one dimension in a central region having at least a predetermined width within the predetermined region and partitioned longitudinally from a side adjacent to the input diffractive optical element to an opposite side thereto.

Diffractive light guide plate and display device including same

The present disclosure provides a diffraction light guide plate including: a light guide unit; an input diffraction optical element configured to diffract light which is outputted from a light source and inputted to the input diffraction optical element, to guide the inputted light on the light guide unit; and two diffraction optical elements configured to receive the diffracted light from the input diffraction optical element and one-dimensionally expand the received light by diffraction, wherein each of the two diffraction optical elements receives the expanded light from the other of the diffraction optical elements and outputs the received light from the light guide unit by the diffraction, and there is no region where the two diffraction optical elements overlap each other on the light guide unit.

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.

A method of quantifying whether an adhesive agent leaks from a polarizing plate and/or a degree of leakage of the adhesive agent according to an exemplary embodiment of the present invention, including: (a) preparing a polarizing plate including an adhesive layer; (b) providing the polarizing plate so that one end of the polarizing plate adjoins a guide unit; (c) moving the polarizing plate on the guide unit; (d) measuring frictional force applied between the polarizing plate and the guide unit while moving the polarizing plate; (e) deriving a determination criterion based on the measured value of the frictional force, and (f) determining whether the adhesive agent leaks from the polarizing plate and/or the degree of leakage of the adhesive agent based on the determination criterion.

Method for detecting adhesive agent leak from polarizing plate and method of quantifying degree of leakage

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, which effectively produces a blazed grating pattern.

Plasma etching method using faraday cage

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.

A method for manufacturing a liquid crystal aligning film includes preparing a multilayer structure in which a substrate, a conductive layer, a liquid crystal alignment layer, and a passivation film are sequentially provided, etching one area of the liquid crystal alignment layer by irradiating a pulse laser to the multilayer structure, and exposing one area of the conductive layer by removing the passivation film, wherein the pulse laser is irradiated to the liquid crystal alignment layer from the passivation film. The method is compatible with a continuous process.

Method for manufacturing liquid crystal aligning film

The present invention relates to a method for preparing spherical cured polymer particles from a curable composition. The method comprises the steps of: dropping a curable composition onto a substrate having a water contact angle of 150&#xb0; to 170&#xb0; at 25&#xb0; C. to form droplets of the curable composition; and curing the droplets to form the polymer particles.

Growing community of inventors

Daejeon, South Korea

Jeong Ho Park