LAMINATED POLARIZING PLATE AND HORIZONTAL ALIGNMENT TYPE LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: KAMISAKA TETSUYA, IMAFUKU HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 16.06.2016
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a laminated polarizing plate and a horizontal alignment type liquid crystal display device that have excellent visual field characteristics.SOLUTION: There is provided a laminated polarizing plate 5 having at least a first polarizing plate 1, a first optically anisotropic layer 3, and a second optically anisotropic layer 4 laminated in this order, where the first and second optically anisotropic layers satisfy predetermined in-plane retardation values and retardation values in the thickness direction at wavelengths of 450 nm, 550 nm, and 650 nm.SELECTED DRAWING: Figure 1 【課題】視野角特性に優れた積層偏光板及び水平配向型液晶表示装置を提供する。【解決手段】少なくとも第１の偏光板１、第１の光学異方性層３及び第２の光学異方性層４がこの順に積層された積層偏光板５であって、第１および第２の光学異方性層が波長４５０ｎｍ、５５０ｎｍ、６５０ｎｍで所定の面内リターデーション値および厚さ方向のリターデーション値を満たす積層偏光板。【選択図】図１