A liquid crystal cell including at least two substrates transparent to visible part of light spectrum, a liquid crystal layer encased between the substrates, and a stack of functional layers formed over the substrates and enclosed between a given substrate and the liquid crystal layer. In a direction from the given substrate towards the liquid crystal layer, said stack comprises a first dielectric layer, a transparent electrode layer, and a second dielectric layer. A refractive index of the first dielectric layer lies in a range between a refractive index of the given substrate and a refractive index of the transparent electrode layer. A refractive index of the second dielectric layer lies in a range between the refractive index of the transparent electrode layer and a refractive index of the liquid crystal layer corresponding to a homeotropic alignment of a liquid crystal material of the liquid crystal layer.

Provided is an optical laminate produced by disposing an anti-glare layer on at least one side of a light-transmitting substrate, the anti-glare layer having a surface that has the arithmetic mean peak curvature Spc of 1.5 mm.sup.−1 or less in absolute value, the optical laminate has the adjusted transmission image clarity of 85% or less. On the anti-glare layer, further disposed is a low refractive index layer. The optical laminate including the low refractive index layer may have a luminous reflectance of 1.4 or less. The optical laminate improves the anti-glare properties.

A polarizing plate includes a substrate and a plurality of projections which protrude with respect to the substrate, in which the plurality of projections are formed by periodically arraying projections extending in a first direction in plan view, each of the projections includes a reflective layer and a tip end portion, the tip end portion is arranged at a position further away from the substrate than the reflective layer, the tip end portion is continuously widened from a first end portion, which is a tip end, to a second end portion on a side close to the substrate in a first cut plane perpendicular to the substrate and the first direction, and a first surface of the tip end portion includes a continuous first curved surface.

A display device includes a display unit that displays a biological image and a transparent protective plate disposed on a front surface of the display unit. In the display device, an uneven structure having unevenness with a pitch and a height smaller than a wavelength of visible light is formed on any one or more of a front surface side of the protective plate, a back surface side of the protective plate, and a front surface side of the display unit, and an anti-glare (AG) structure having an AG function is formed on any one or more of the front surface side of the protective plate, the back surface side of the protective plate, and the front surface side of the display unit. The present technology can be applied to a display device that displays a biological image.

A polarizing plate and an optical display including the same are provided. A polarizing plate includes: a polarizing film; a first base layer; and a pattern layer, the first base layer and the pattern layer being sequentially arranged on a light exit surface of the polarizing film, and the pattern layer includes a first layer and a second layer sequentially arranged on the first base layer, the first layer having a higher index of refraction than the second layer, and the first layer includes a patterned portion at at least a portion thereof facing the second layer, the patterned portion including at least two optical patterns and a flat section between optical patterns of the at least two optical patterns that are adjacent to each other.

An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.

A liquid crystal display panel and a liquid crystal display device are disclosed. The liquid crystal display panel includes a display module and a packaging cover plate disposed on a light-emitting side of the display module. The packaging cover plate includes a cover plate body and a first polarizer, wherein the first polarizer is disposed on a side of the cover plate body adjacent to the display module and/or on a side of the cover plate body away from the display module.

A liquid crystal display device includes a plurality of pixels, each pixel includes a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer between the second electrode and the first electrode; a first region in each of the plurality of pixels having a first optical path length between the first electrode and the second electrode; a second region in each of the plurality of pixels having a second optical path length between the first electrode and the second electrode, the second optical path length being shorter than the first optical path length, the second region has the liquid crystal layer equal in thickness to the liquid crystal layer in the first region; and an optical path length adjusting layer between the liquid crystal layer and the first electrode in the first region.

An augmented display system with dynamic see-through transmittance control is disclosed. The augmented display system includes: an augmented display screen; a tandem electrochromic (EC) filter disposed over the augmented display screen. The tandem EC filter includes a first window having a dominant first transmittance characteristic and a second window having a dominant second transmittance characteristic; and an augmented display transmittance controller configured to individually control the activation of the first window and the second window of the tandem EC filter, wherein the augmented display transmittance controller is configured to: determine from an ambient light sensor output the transmittance required from the first window and the second window for a selected augmented display luminance; and apply appropriate drive voltage waveforms to the first window and the second window to achieve the determined transmittance.

Provided is a laminate and an anti-reflection structure that can be thinned, are excellent in anti-reflection performance and can keep reflection chromaticity neutral. In the laminate according to the present disclosure, a part of a light shielding film has a non-light shielding portion without a light shielding film; an anti-reflection structure is formed in the non-light shielding portion through an adhesion layer, and a fine uneven structure has an uneven period that is equal to or less than a wavelength of visible light; and a color difference (ΔE) between a reflected light by the light shielding film and a reflected light by the anti-reflection structure expressed in the formula shown below is equal to or less than 1.5.
ΔE=√{square root over ((a.sub.1−a.sub.2).sup.2+(b.sub.1−b.sub.2).sup.2)}