Lg Chem, Ltd

Lg Electronics Inc.

Shanjin Optoelectronics (Nanjing) Co., Ltd.

Sung Hyun Nam

Kyun Il Rah

Byung Sun Lee

Jong Hyun Jung

Ji Young Kim

Jong-Hyun Jung

Hye-Min Yu

Hye Min Yu

Sung Soo Yoon

Se Woo Yang

No Ma Kim

Min Ki Lee

In Ho Hwang

Kyun-Il Rah

In Kyu Park

Ki Ok Kwon

Jonghyun Jung

Yeong Rae Chang

Heon Kim

Ji Young Hwang

Eung Jin Jang

Dae Woong Lee

Kyung Ki Hong

Yoon Tae Hwang

Seunghee Nam

Se-Woo Yang

Kyun Ii Rah

Yoon-Tae Hwang

Moon Soo Park

Suk Ky Chang

Jin Yong Park

Eun Suk Park

Sun Kug Kim

Hong Jun Choi

Deok Woo Park

Woo Seok Kang

Kyun-Ii Rah

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 method for preparing a base film, a laminate or a polarizing film. The present application can provide an elongatable base film which simultaneously maintains elongation and recovery rates at proper levels and guarantees water resistance, and thus can be effectively applied in the preparation of, for example, a polarizing film. The present application can also provide a laminate using the film or a method for preparing a polarizing film using the base film. The base film can be effectively applied in the preparation of a polarizing film having an excellent function, such as polarization performance, while having a thickness of, for example, about 10 &#x3bc;m or less, about 8 &#x3bc;m or less, about 7 &#x3bc;m or less, about 6 &#x3bc;m or less, or about 5 &#x3bc;m or less.

Base film

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 polarizing plate including a water-based adhesive layer, a primer layer, and a polyethylene terephthalate protection film sequentially provided on at least one surface of a polarizer, in which the water-based adhesive layer is formed by using a water-based adhesive including a polyvinyl alcohol-based resin, an amine-based metal compound, and a pH adjuster, and the pH adjuster includes epoxy (meth)acrylate, alcohol, and acid, and a method for manufacturing the same.

Polarizing plate comprising polyethylene terephthalate protective film, method for manufacturing same, and image display device and liquid-crystal display device comprising same

The present invention relates to a polarizing plate including a polyethylene terephthalate film and having an excellent optical property, and a method for manufacturing the same, and the polarizing plate of the present invention includes: a water-based adhesive layer, a primer layer, and a polyethylene terephthalate protection film sequentially provided on at least one surface of a polarizer, in which the water-based adhesive layer is formed by using a water-based adhesive including a polyvinyl alcohol-based resin and a glyoxalate crosslinking agent at a weight ratio of 100:5 to 100:50, and the primer layer is formed by using a primer composition including a polyester-based compound and an acryl-based compound.

Polarizing plate with polyethylene terephthalate film as protective film, and method for manufacturing same

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

Provided are a base film, a laminate, and a method of forming a polarizing film. Particularly, a base film which may effectively form a polarizing film having a thickness of approximately 10, 8, 7, 6, or 5 &#x3bc;m or less and exhibiting excellent functions such as polarizing performance, a laminate, and a method of forming the same are provided. Therefore, a polarizing film may be formed by preventing tearing or curling during an elongation process, and easily elongating a polarizing material such as a polyvinylalcohol-based resin.

Laminate

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

There is provided a stretched laminate formed by stretching a laminate including: a non-stretched high-density polyethylene film; and a non-stretched polyvinyl alcohol-based film attached to at least one surface of the high-density polyethylene film, wherein the polyvinyl alcohol-based film has a thickness of 10 &#x3bc;m or less after stretching. In addition, there are provided a method of manufacturing a thin polarizer using the stretched laminate, a thin polarizer manufacturing by the method, and a polarizing plate including the thin polarizer.

Stretched laminate, method of manufacturing thin polarizer, thin polarizer manufactured by the method, and polarizing plate including the thin polarizer

The present invention relates to a method for manufacturing a thin polarizer, the method including: a step of preparing an unstretched polyvinyl alcohol-based film having a thickness of 20 &#x3bc;m or less, in which a strength applied to stretch the film by 6 times is 4 N or more; and a single stretching step of forming a stretched polyvinyl alcohol-based film having a thickness of 10 &#x3bc;m or less by stretching the unstretched polyvinyl alcohol-based film solely, and a thin polarizer manufactured by using the same.

Method for manufacturing thin polarizer, and thin polarizer manufactured using same

The present invention relates to a method for manufacturing a thin polarizer, the method comprising the steps of: forming an auxiliary support on both ends in the transverse direction (TD) of an unstretched polyvinyl alcohol-based film; and wet-stretching the polyvinyl alcohol-based film, which has the auxiliary support formed thereon, in the machine direction (MD) of the polyvinyl alcohol-based film, in such that the thickness of the polyvinyl alcohol-based film is 10 &#x3bc;m or less.

Method for manufacturing thin polarizer, thin polarizer manufactured using same, and polarizing plate

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Daejeon, South Korea

Sung Hyun Nam