NEUTRAL POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

Japanese Patent JP3383260

B2

PROBLEM TO BE SOLVED: To provide a polarizing plate having small wavelength dependence of the polarization degree for transmitted polarized light, little void in colors and excellent achromaticity with which a liquid crystal display device or the like having good visibility excellent in reproducibility of intrinsic colors for both of a black display and white display can be produced.
SOLUTION: The neutral polarizing plate is produced by laminating a dichroic polarizing plate 1 and a polarizing scattering plate 3 which shows scattering anisotropy depending on the polarization direction and which shows strong wavelength dependence in the scattering intensity for the linearly polarized light in the optical axis direction of the plate 3 with the strong scattering property. These plates are laminated with the absorption axis of the dichroic polarizing plate 1 parallel to the optical axis which gives the strong scattering property of the polarizing scattering plate 3. The liquid crystal display device is produced by disposing the neutral polarizing plate on the light source side of a liquid crystal display panel. Thereby, the neutral polarizing plate has excellent transmittance in the optical axial direction of the polarizing scattering plate where the light is hardly scattered, and maintains good hue by the dichroic polarizing plate. In the optical axis where the polarizing scattering plate shows strong scattering property, linearly polarized light is scattered and influenced by the wavelength dependence, which decreases the transmittance and suppresses leaking of light in the short wavelength region by the dichroic polarizing plate 1.

WO/2016/051663	LIQUID CRYSTAL COMPOSITION, POLARIZED LIGHT EMISSION FILM, FREQUENCY CONVERTING MEMBER AND PRODUCTION METHOD FOR SAME, BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE
WO/2012/166260	LIQUID CRYSTAL BLOCK COPOLYMER AND METHODS OF MAKING AND USING THE SAME
JP4574549	Benzene derivatives with long linear conjugated structural parts, their production methods and liquid crystal materials

Minoru Miyatake
Takafumi Sakuramoto

JP2000073212A

March 04, 2003

March 16, 2000

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NITTO DENKO CORPORATION

C09K19/38; G02B5/30; G02F1/1335; (IPC1-7): G02B5/30; G02F1/1335

JP9274108A

Tsutomu Fujimoto

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