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Polarizing plate and liquid crystal display device including same

A technology of liquid crystal display devices and polarizers, applied in optics, optical elements, nonlinear optics, etc., can solve problems such as bending of liquid crystal display devices, and achieve the effect of minimizing the rainbow phenomenon

Active Publication Date: 2020-03-17
SHANJIN OPTOELECTRONICS SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the thickness of the transparent substrate included in the liquid crystal cell is reduced to reduce the thickness of the liquid crystal cell, there is a problem that bending of the liquid crystal display device may occur due to stress applied by a polarizing plate.

Method used

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  • Polarizing plate and liquid crystal display device including same
  • Polarizing plate and liquid crystal display device including same
  • Polarizing plate and liquid crystal display device including same

Examples

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Embodiment Construction

[0023] Throughout the specification of the present application, when a member is provided "on" another member, this includes not only the case where the one member is in contact with the other member but also the case where there is another member between the two members.

[0024] Throughout the specification of the present application, when a part "includes" a constituent element, it does not mean excluding another constituent element unless specifically described otherwise, but means that another constituent element may also be included.

[0025] Throughout the specification of the present application, "N / 5mm" which is a unit of shrinkage stress can be converted into a general unit of shrinkage stress used in the art by unit conversion. For example, "N / 5mm" as a unit of shrinkage stress can be converted into N / mm, N / cm, N / m, N / inch, kgf / mm, kgf / cm, kgf / m, kgf / inch, etc.

[0026] The present inventors found that, in the case of a liquid crystal display device provided with li...

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Abstract

The present invention relates to a polarizing plate capable of suppressing the occurrence of bending of a liquid crystal display device, and a liquid crystal display device including the same. According to one aspect of the present invention, the polarizing plate comprises: a polarizer; and a polarizer protection film provided on one surface of the polarizer, wherein after being heated at 70 degrees centigrade under the condition of 0 RH%-20 RH%, the polarizer protection film has a thermal contraction stress of 2.5 N / 5 mm-8 N / 5 mm.

Description

technical field [0001] This specification claims priority and benefit from Korean Patent Application No. 10-2017-0094369 filed with the Korean Intellectual Property Office on July 25, 2017, the entire contents of which are incorporated herein by reference. [0002] The present invention relates to a polarizing plate and a liquid crystal display device including the same. Background technique [0003] Recently, as various portable devices (for example, mobile phones or laptop computers) and information electronic devices (for example, HDTV) that realize high-definition and high-quality images are developed, there is a demand for flat panel display devices applied to these devices gradually increase. As flat panel display devices, liquid crystal displays (LCDs), plasma display panels (PDPs), field emission displays (FEDs), organic light emitting diodes (OLEDs), etc. Particular attention has been paid to the ease of means, the realization of high-quality images, and the reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335B32B27/08B32B27/32B32B27/30
CPCB32B27/08B32B27/30B32B27/32G02F1/133528G02B5/3033G02B1/14B32B27/308B32B2457/202B32B2307/7246G02F1/133531B32B2307/42B32B27/306
Inventor 曹敏荣朴振勇金兑祐李应淇
Owner SHANJIN OPTOELECTRONICS SUZHOU CO LTD