Electronics and Telecommunications Research Institute

Lg Chem, Ltd

Korea Telecommunication Authority

Kt Corporation

Shanjin Optoelectronics (suzhou) Co., Ltd.

Abd Korea Telecommunications Authority

Byung Sun Lee

Kyun Il Rah

Sung Hyun Nam

Ji Young Kim

Eung Jin Jang

Kee Seong Cho

Hyun Joo Bae

Young Sun Kim

Jong Hyun Jung

Ki Jong Koo

Young Il Choi

Du Jin Choi

Chan H Yoo

Yeong Rae Chang

Moon Soo Park

Heon Kim

Beom Seok Lee

Kyung Ki Hong

Hyun Woo Oh

Kyung Pyo Jun

Byung Yun Lee

Hyung Koo Kang

Kang Yong Lee

Ki Sook Chung

Ho Jeong Yun

Ji Hoon Park

Hyun Woo Kim

Byoung Kun Jeon

Dae Hee Lee

Sang Hyun Kim

Jin Young Choi

Jeong Hwan Kim

Do Young Kim

Jong Mo Sung

Jin Yong Park

Mi Suk Lee

Sun Kug Kim

Jun Won Chang

Seong Soon Joo

Young Shin Lee

Hyun Jin Lee

Hyun Soon Shin

Hye Min Yu

Hyun Chul Kang

Jeong Dong Ryoo

Sang Ki Kim

Dae Ung Kim

Hyun Jeong Lee

Hwa Suk Kim

Ilgu Jung

Deok Woo Park

Jaehong Park

Hong Jun Choi

Sung Jin Moon

Eunjin Ko

Eung Ha Kim

Yong Joo Lee

Ki Soon Sung

Yoo Mi Park

Yearn Gui Yi

Tae Ho Yeam

Yeon Heon Ku

The present disclosure relates to a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

Mask film and method for manufacturing polarizing plate by using same

The present specification relates to a method for manufacturing a polarizing plate using a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

Method for manufacturing polarizing plate using mask film and polarizing plate manufactured by same

An optical device is disclose herein. In some embodiments, an optical device includes an active liquid crystal element film, wherein the active liquid crystal element film comprises two base films, an active liquid crystal layer present between the two base films, wherein the active liquid crystal layer contains a liquid crystal compound and is capable of switching between a first oriented state and a second oriented state, and a polarizing coating layer, wherein the polarizing coating layer is present between one of the two base films and the active liquid crystal layer. The optical device is capable of varying transmittance, and can be used for various applications such as sunglasses, AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.

Optical device

The present application relates to a stacked polarizing plate comprising: a polyvinyl alcohol-based polarizer having one or more of iodine and a dichroic dye; and a film provided on one surface of the polyvinyl alcohol-based polarizing plate and comprising a lyotropic liquid crystal compound which absorbs light having a wavelength of 380 nm to 780 nm, and a liquid crystal display device comprising the same.

Polarizing plate and liquid crystal display device comprising same

The present specification relates to a method for manufacturing a polarizing plate and a polarizing plate. More particularly, the present specification relates to a method for manufacturing a polarizing plate locally having a depolarization region, and a polarizing plate.

Method for producing polarizing plate and polarizing plate

The present application relates to a polarizing plate and a display device. In the present application, a polarizing plate can be provided, which can be applied to a display device comprising a highly reflective panel to solve disadvantages while maintaining advantages of the device. In the present application, a display device comprising the polarizing plate and the highly reflective panel can also be provided.

Polarizing plate

The present invention relates to a method for manufacturing a polarizing plate, the method including: preparing a polarizing plate where a protection film is laminated on one surface of a polyvinyl alcohol-based polarizer dyed with at least one or more of iodine and dichromatic dyes; and forming a depolarization region having single transmittance of 80% or more at a wavelength band in a range of 400 nm to 800 nm by bringing a decoloring solution including 1 to 30 wt % of a decolorant into local contact with the other surface of the polarizer, and a polarizing plate manufactured by using the same.

Method for preparing polarizing plate locally having depolarization region, and polarizing plate prepared by using same

The present invention relates to a method for manufacturing a polarizing element including locally bleached areas including steps of providing a polarizing element including a polyvinyl alcohol-based polarizer in which at least one or more of iodine and dichroic dye is oriented in a certain direction; partially bleaching the polyvinyl alcohol-based polarizer by bringing a bleaching solution into contact with one surface of the polyvinyl alcohol-based polarizer through a printing method; and correcting an appearance of the partially bleached polarizing element.

Methods for manufacturing polarizing element, polarizing element roll and single sheet type polarizing element having local bleaching areas

The present invention relates to a method for manufacturing a polarizing element including locally bleached areas including steps of providing a polarizing element including a polyvinyl alcohol-based polarizer in which at least one of iodine and dichroic dye is oriented in a certain direction; forming a mask layer including at least one punched area on one surface of the polarizing element; partially bleaching the polarizing element formed with the mask layer by immersing the polarizing element into a bleaching solution; and correcting an appearance of the partially bleached polarizing element.

The present invention relates to a method for manufacturing a polarizer including preparing a polyvinyl alcohol-based polarizer dyed with at least one of iodine and dichroic dye; forming a depolarized area by locally bringing a bleaching solution into contact with some areas of the polarizer; and acid treating at least the depolarized area using an acid solution, a polarizer and a polarizing plate manufactured by using the same.

Method for manufacturing polarizer having locally depolarized area, and polarizer, polarizing plate and image display device manufactured by using same

The present application relates to a polarizer, a polarizing plate and a display device. The present application can provide a polarizer or a polarizing plate that is applied to various types of display devices, particularly to a display device having a highly reflective liquid crystal panel and that shows excellent characteristics. In addition, the present application can provide a display device including the polarizer or the polarizing plate.

Polarizer

The present invention relates to a method for manufacturing a polarizing plate, the method comprising the sequential steps of: preparing a polarizing element comprising a polyvinyl alcohol-based polarizer dyed with any one or more of iodine and a dichroic dye; irradiating the polarizing element with light having a specific wavelength selected from a wavelength range of 200 nm to 800 nm; and moistening the polarizing element, and to a polarizing plate manufactured by the method.

Method for manufacturing nearly-natural black polarizing plate and polarizing plate manufactured thereby

The present invention relates to a polarizing plate that comprises a polyvinyl alcohol-based polarizer dyed with any one or more of iodine and a dichroic dye and that locally has a depolarized region having a single transmittance of 70% or more at a wavelength ranging from 400 nm to 800 nm, the depolarized region being formed by irradiating light having a specific wavelength selected from a wavelength range of 200 nm to 800 nm, and to a manufacturing method thereof.

Polarizing plate having local depolarization area and method for manufacturing same

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Daejeon, South Korea

Byung Sun Lee