There is provided an optical laminate that can improve viewability by suppressing a hue change in accordance with the angle of polarized sunglasses. An optical laminate of the present invention includes: a first retardation layer; a second retardation layer; a polarizer; and a third retardation layer. The first retardation layer, the second retardation layer, the polarizer, and the third retardation layer is laminated from a viewer side in the stated order.

A liquid crystal display panel (100A) includes a first polarizing plate (22) and a first phase difference plate (32a) disposed on an observer side, and a second polarizing plate (24) and a second phase difference plate (34a) disposed on a back surface side. nd of a liquid crystal layer having a homogeneous alignment when no electrical field is applied is 360 nm or greater and 490 nm or less, and an in-plane retardation R1 of the first phase difference plate is 100 nm or greater and 160 nm or less. A thickness direction retardation of at least one of the first and second phase difference plates has a negative value. The slow axes of the first and second phase difference plates are substantially parallel to each other and substantially orthogonal to an azimuthal direction of the liquid crystal director.

The present disclosure provides a liquid crystal display and a mobile terminal. The liquid crystal display may include: a thin-film transistor (TFT) array substrate; a color film (CF) substrate arranged corresponding to the TFT array substrate; a liquid crystal layer arranged between the TFT array substrate and the CF substrate; a first quarter-wave plate arranged on the TFT array substrate; an upper polarizing plate arranged on the first quarter-wave plate; a lower polarizing plate arranged on the CF substrate, wherein an absorption axis of the lower polarizing plate is substantially perpendicular to an absorption axis of the upper polarizing plate; and a second quarter-wave plate arranged between the lower polarizing plate and the CF substrate, wherein an optical axis of the second quarter-wave plate is substantially perpendicular to an optical axis of the first quarter-wave plate.

An exemplary embodiment of the present invention provides a polarizer including a first retardation layer and a second retardation layer having different retardation values with respect to each other, a polarization layer disposed on the first retardation layer, a first compensation layer disposed between the first retardation layer and the second retardation layer, and a second compensation layer disposed below the second retardation layer.

An exemplary embodiment of the present invention provides a polarizer including a first retardation layer and a second retardation layer having different retardation values with respect to each other, a polarization layer disposed on the first retardation layer, a first compensation layer disposed between the first retardation layer and the second retardation layer, and a second compensation layer disposed below the second retardation layer.

A privacy display comprises a polarized output spatial light modulator, reflective polarizer, switchable liquid crystal retarder and polarizer. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without loss, whereas off-axis light has reduced luminance. Further, display reflectivity is reduced for on-axis reflections of ambient light, while reflectivity is increased for off-axis light. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction and increased frontal reflectivity to ambient light. In a wide angle mode of operation, the liquid crystal retardance is adjusted so that off-axis luminance and reflectivity are unmodified.

A liquid crystal panel includes: a first polarizer and a second polarizer in opposite sides, a liquid crystal cell arranged between the first polarizer and the second polarizer, a first quarter waveplate, arranged between the first polarizer and the liquid crystal cell, and a second quarter waveplate arranged between the second polarizer and the liquid crystal cell. The direction of an absorption axis of the first polarizer and the direction of an absorption axis of the second polarizer are consistent. The direction of an optic axis of the first quarter waveplate and the direction of an optic axis of the second quarter waveplate are consistent. The liquid crystal panel where the polarizers are pasted still keeps on normal-black mode when no voltage is applied on the liquid crystal panel. The contrast ratio of the liquid crystal panel is effectively enhanced as well.

A window display device according to the present inventive concept, the window display device includes a display panel configured to display an image, a first glass disposed on a first surface of the display panel, a first laminating member including a first polarizing layer disposed on a first surface of the first glass and a second polarizing layer disposed on a second surface of the first glass. The first polarizing layer includes a first supporting film and a first polarizing film disposed on the first supporting film. The second polarizing layer includes a second supporting film and a second polarizing film disposed on the second supporting film.

Embodiments relate to an optical film and a liquid crystal display device comprising the same. More specifically, the embodiments relate to an optical film that is excellent in optical characteristics and has no polarization unevenness since it comprises a base layer that has a low in-plane retardation and a low thickness direction retardation and has an excellent adhesiveness by virtue of a proper level of surface tension, a process for preparing the same, and a liquid crystal display device comprising the same.

A birefringence film is provided with a plurality of birefringence layers including a hybrid-aligned liquid crystalline polymer. The plurality of birefringence layers is stacked in a state in which the alignment directions of the liquid crystal polymer are identical, and the rising directions of the tilt angle of the liquid crystal polymer are identical.