Polarizing film group with adhesive layer, liquid crystal panel and liquid crystal display device

Abstract

The present invention provides a polarizing film set with an adhesive layer which is controlled so that warpage at normal temperature and normal humidity is reduced when used in a liquid crystal panel. The polarizing film set with an adhesive layer has a polarizing film with a first adhesive layer disposed on the observation side of an IPS mode liquid crystal cell and a polarizing film with a second adhesive layer disposed on the back side of the liquid crystal cell. The first polarizing film of the polarizing film with the first adhesive layer has a humidity expansion coefficient of 1.0×10 on one side of the first polarizer with a thickness of 25 μm or less. ‑6 The first transparent protective film (b11) below / % RH has a surface treatment layer on the other side, and the first transparent protective film (b11) side is arranged on the polarizing film on the side of the liquid crystal cell, and the above-mentioned second adhesive The second polarizing film of the polarizing film of the agent layer has a first transparent protective film (b21) on at least one side of the second polarizing plate with a thickness of 10 μm or less, and a brightness is attached to the side where the second adhesive layer is not provided. Raise the membrane.

Description

technical field [0001] The invention relates to a polarizing film group with an adhesive layer applied on both sides of a liquid crystal cell. Moreover, this invention relates to the liquid crystal panel which applied the said polarizing film group with an adhesive layer to both sides of a liquid crystal cell. The liquid crystal panel can form a liquid crystal display device. The above-mentioned liquid crystal panel and liquid crystal display device can be applied to various applications, for example, they can be used together with an input device such as a touch panel applied to the observation side of the liquid crystal display device. As the above-mentioned touch panel, touch panels of an optical system, an ultrasonic system, an electrostatic capacity system, a resistive film system, or the like can be suitably used. It is especially suitable for touch panels using the electrostatic capacitance method. The above-mentioned touch panel is not particularly limited, and is u...

AI Technical Summary

Problems solved by technology

Therefore, the liquid crystal panel may be warped due to the shrinkage and expansion of the polarizer accompanying changes in the humidification environment.

In addition, there is also a risk of the above-mentioned warping when stored at room temperature and humidity

Warpage generated in liquid crystal panels causes display unevenness in liquid crystal display devices

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