Lg Chem, Ltd

Crucialtec Co.ltd

Crucialtrak, Inc

Dong Hyun Oh

Jung Sun You

Eun Jung Lim

Jin Hong Kim

Min Jun Gim

Jung Woon Kim

Sung Joon Min

Hyun Jun Lee

Seung Heon Lee

Ji Young Hwang

Han Min Seo

Kyung Jun Kim

Sergey Belyaev

Nam Seok Bae

Nam Hun Kim

Nam Gyu Kim

Cheol Ock Song

Ki-Hwan Kim

Chan Hyoung Park

Ilha Lee

Yong Hee Han

Moon Soo Park

Dong Ho Lee

Sang Woo Kim

Jun Won Chang

In Ju Mun

Hye Ran Seong

Se Jin Shin

Song Ho Jang

Hye Won Jeong

Kyung Ki Hong

Chan Hyo Park

Hyo Jin Lee

Cheol Min Yun

Doo Young Huh

Hyeon Sik Choi

Ki Hwan Kim

Su Jin Kim

Dae Hee Lee

Jung Ho Jo

Yeon Keun Lee

Joo Hyun Lee

Jin Woo Park

Hang Suk Choi

Jin Hyong Lim

Dae Han Seo

Yoon Kyung Kwon

Min Soo Song

Sun Young Park

Sangcholl Han

Jung Doo Kim

Byung Hyun Lee

Sungjoon Min

Doo Hoon Song

Kum Suek Seo

Beom Jin Lee

Sung Yoon Lee

Ki Chul Koo

Sang Kook Kim

Jungsun You

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate having a first surface and a second surface, an adhesive layer or pressure-sensitive adhesive layer disposed on the first surface of the first polymer film substrate, a second polymer film substrate having a first surface and a second surface, a liquid crystal alignment film disposed on the first surface of the second polymer film substrate, a −C plate; and a light modulation layer containing a liquid crystal compound. The light modulation device has excellent optical properties including transmittance-variable characteristics through characteristic control and proper arrangement of a compensation film, and being applicable to various uses by controlling inclination angle light leakage in a black mode.

Light modulation device

A method of manufacturing a light modulation device is disclosed herein. In some embodiments, a method comprises transferring a first substrate between a first unwind roll and a take-up roll, wherein an adhesive layer is disposed on the a first surface of the first substrate, transferring a second substrate between a second unwind roll and the take-up roll, wherein the second substrate includes a spacer and a liquid crystal alignment film formed on a first surface of the second substrate during the transfer and prior to an attachment with the adhesive layer of the first substrate, and attaching the first and second substrates via respective first surfaces thereof by passing the first and second substrates through an opening between adjacent attachment rolls to form a light modulation device.

Manufacturing method of light modulation device

An optical device is disclosed herein. In some embodiments, an optical device includes a first outer substrate, a second outer substrate, a liquid crystal element film positioned between the first and second outer substrates, intermediate layers positioned between the first outer substrate and the liquid crystal element film and between the liquid crystal element film and the second outer substrate, respectively, wherein a sum of the total thicknesses of the intermediate layers is 1,600 μm or more. The optical device can secure structural stability and good quality uniformity by maintaining the cell gap of the liquid crystal element film properly, having excellent attachment force between the upper substrate and the lower substrate, and minimizing defects such as pressing or crowding in the bonding process of the outer substrates.

Optical device

A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate, a second substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first and second substrates, and wherein the light modulating device satisfies Equation 1: T≤3×T, wherein, Tis an initial transmittance measured after vertically orienting the liquid crystal layer and placing it between orthogonal polarizers, and Tis a transmittance measured after heating the liquid crystal layer showing the transmittance of Tat 100° C. for 5 minutes, and then placing it between the orthogonal polarizers. The light modulating device can stably maintain designed optical properties even after an encapsulation process. The light modulating device can also stably maintain the orientation state of a light modulation layer while effectively securing adhesive force between upper and lower substrates.

Light modulating device

A transmittance-variable device is provided in the present application. The present application provides a transmittance-variable device, which can be applied to various applications without causing problems such as a crosstalk phenomenon, a rainbow phenomenon or a mirroring phenomenon, while having excellent transmittance-variable characteristics.

Transmittance-variable device

The present application relates to a polarization-variable element. The polarization-variable element of the present application has a fast response speed and excellent variable characteristics of polarization degree and transmittance. Such polarization-variable element may be applied to various applications including various architectural or vehicle materials requiring transmittance-variable characteristics, or eyewear such as goggles for augmented reality experience sports, sunglasses or helmets.

Polarization-variable element

A pressure-sensitive adhesive and a liquid crystal cell including the same are disclosed herein. In some embodiments, a pressure-sensitive adhesive having a storage elastic modulus of 700 kPa or more at a temperature of 25° C. and a frequency of 6 rad/sec, and a gel fraction of 35% or more, wherein the gel fraction is defined by Equation 1:×100  [Equation 1]wherein, A is an initial mass (g) of the pressure-sensitive adhesive, B is a mass (g) of an insoluble content after the pressure-sensitive adhesive is immersed in a solvent at 60° C. for 24 hours and then dried at 150° C. for 30 minutes. The press-sensitive adhesive is advantageous for implementation into a flexible element between upper and lower substrates of a liquid crystal cell, and providing excellent electro-optical properties and appearance uniformity by minimizing defects.

Pressure-sensitive adhesive and liquid crystal cell

A method for manufacturing a light modulation device is provided. The light modulation device is capable of removing defects such as orientation irregularities. The light modulation device further improves the orientation state in the light modulation device that adjusts orientation of a liquid crystal compound or the like with a liquid crystal alignment film and a pressure-sensitive adhesive layer or adhesive layer.

The present specification relates to a conductive structure body, a method for manufacturing the same, and an electrode and an electronic device including the conductive structure body.

Conductive structure, manufacturing method therefor, and electrode comprising conductive structure

An optical device is disclosed herein. In some embodiments, a optical device includes a liquid crystal element having a top surface, a bottom surface, and sides separating the top surface and the bottom surface, and an outer layer surrounding the sides of the liquid crystal element, wherein the liquid crystal element comprises a first base layer, a second base layer, a liquid crystal layer positioned between the first base layer and the second base layer, a pressure-sensitive adhesive layer positioned between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first base layer and the second base layer, wherein the optical device satisfies Equation 1:−2×0.4≤1−2≤2×0.4  [Equation 1]wherein, T1 is a thickness of the outer layer, and T2 is a thickness of the liquid crystal element.

A light modulation device is disclosed herein. The light modulation device can properly maintain a cell gap by controlling the shape and arrangement of spacers and the like, and is applicable for various applications by effectively controlling omnidirectional light leakage in a black mode, while having excellent optical properties, including transmittance-variable characteristics and haze characteristics, and the like.

A coating composition, a method for manufacturing a substrate using the same, and an optical device are provided. The method for manufacturing the substrate provides the substrate having excellent performance, as the substrate has fixed spacers on its surface by using a single layer in which nanoparticles and spacers are dispersed in an alignment film to reduce processes and cost. The optical device may be manufactured by such method.

Coating composition

A light modulation element that can vary between a bright transparent mode and a dark scattering mode is provided. The light modulation element has a first light modulation layer and a second light modulation layer comprising nematic liquid crystals and a dichroic dye in a scattering mode when a voltage is applied. The first light modulation layer and the second light modulation layer are disposed to overlap each other. The light modulation element has an improved contrast ratio and haze-variable characteristics, without precipitation of dichroic dyes and an increase in power consumption.

Light modulation element

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, a reflective layer, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state different from the first orientation state upon application of a voltage, each of the polymer film substrates has an in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

Growing community of inventors

Daejeon, South Korea

Dong Hyun Oh