The present invention provides an optical film including a light reflection layer, in which the light reflection layer is a layer in which alignment of liquid crystal molecules is immobilized, the liquid crystal molecule forms a helical structure in a film thickness direction of the light reflection layer, and a tilt angle of the liquid crystal molecule is 15° to 55°. The present invention also provides a manufacturing method of the optical film including curing a polymerizable liquid crystal composition including a liquid crystal compound and a chiral agent interposed between a support and another support. In the optical film according to the present invention, an absolute value of oblique retardation is smaller. In the liquid crystal display device including the optical film, front surface brightness is high and an oblique change in the shade is suppressed.

A display device includes a first substrate and a second substrate opposing each other, a reflecting layer, which reflects light incident on the reflecting layer, on the first substrate, a polarizing layer which is disposed on the second substrate and includes a polarizing portion that polarizes light incident on the polarizing portion and a reflecting portion that reflects light incident on the reflecting portion, a liquid crystal layer between the reflecting layer and the polarizing layer, and a retardation layer between the liquid crystal layer and the polarizing layer.

A polarized device includes a first polarizer, a second polarizer, and a compensation film between the first polarizer and the second polarizer. An absorption axis of the first polarizer is vertical to the absorption axis of the second polarizer, and a slow axis of the compensation film is vertical to the absorption axis of the first polarizer or the absorption axis of the second polarizer. In addition, a display device incorporated with the polarized device is disclosed. The polarized device and the display device may greatly eliminate the optical leakage when the polarizers are not orthogonal to each other such that the display performance may be enhanced.

Examples are disclosed relating to reducing orders of diffraction patterns in phase modulating devices. An example phase modulating device includes a phase modulating layer having first and second opposing sides, a common electrode adjacent the first side of the phase modulating layer, a plurality of pixel electrodes adjacent the second side of the phase modulating layer, and blurring material disposed between the phase modulating layer and the pixel electrodes. In the example phase modulating device, the blurring material is configured to smooth phase transitions in the phase modulating layer between localized areas associated with the pixel electrodes, the pixel electrodes have a pixel pitch by which the pixel electrodes are distributed along the phase modulating layer, and the pixel electrodes are separated from one another by an inter-pixel gap, where the ratio of the inter-pixel gap to the pixel pitch is between 0.50 and 1.0.

A liquid crystal display device in which light leak and a tint change when being seen from an oblique direction at the time of black display are suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0° or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.

A liquid crystal display panel and a liquid crystal display device, the liquid crystal panel including a color filter sheet and a liquid crystal layer, an optical compensation film layer being disposed between the color filter sheet and the liquid crystal layer. With the optical compensation film layer inside the liquid crystal panel, contrast ratio is increased in a full-viewing-angle direction, and color shift in a diagonal direction of the liquid crystal pane is alleviated; further, the optical compensation film layer is provided on the color filter sheet of the liquid crystal panel, leading to a compact structure of the liquid crystal panel, reducing production costs and decreasing light leakage and mura phenomenon that are caused by light reflection and refraction; gray level, contrast ratio, color phase or the like of an LCD can be also improved.

The present application relates to a liquid crystal display comprising: an upper polarizer; a lower polarizer; and a liquid crystal panel provided between the upper polarizer and the lower polarizer, in which the upper polarizer and the lower polarizer are provided such that the absorption axes thereof are parallel to each other, a wavelength plate is comprised between the upper polarizer and the liquid crystal panel which rotates linear polarized light at 85 to 90 degrees, and the liquid crystal panel is a horizontally aligned liquid crystal mode.

Liquid crystal modulator optical devices and more specifically shutters and smart windows are presented. The liquid crystal modulator devices are characterized by a reduced polymer content which is eliminated from the material composition of the liquid crystal layer and characterized by non-uniform electrode structures in the liquid crystal structure configured to generate spatially non-uniform electric fields and therefore non-uniform molecular reorientation of liquid crystal molecules. This arrangement advantageously makes light scattering electrically controllable.

The present invention provides a liquid crystal display (LCD) panel and a display apparatus using the same. The LCD panel comprises a first substrate, a second substrate, a liquid crystal layer and a half wave (λ/2) retarder film, The liquid crystal layer is formed between the first substrate and the second substrate. The second substrate comprises a second electrode, wherein the second electrode comprises a trunk portion and plurality of branch portions, and there is a predetermined angle between the trunk portion and the branch portions, and the predetermined angle is less than or greater than 45 degrees. The λ/2 retarder film is bonded to an outer surface of the first substrate or the second substrate. The present invention can improve the color shift problem and the transmittance of the LCD panel.

A switchable privacy display apparatus comprises a spatial light modulator, a light control film, and a polar control retarder that comprises plural retarders arranged between a display polariser of the spatial light modulator and an additional polariser. The display achieves high image visibility to an off-axis user in a public mode of operation and high image security to an off-axis snooper in privacy mode of operation.