A liquid crystal light control element that controls a light absorption state by voltage application, the liquid crystal light control element including: a liquid crystal layer containing a liquid crystal composition between a pair of substrates each having an electrode; and a liquid crystal alignment film that is provided on at least one of the substrates and aligns a liquid crystal vertically, wherein the liquid crystal composition contains a liquid crystal and a dichroic dye, the liquid crystal alignment film is obtained from a liquid crystal aligning agent containing a polyimide precursor in which a diamine having a specific side chain is used as a part of the raw material or a polyimide obtained by imidizing the polyimide precursor, and the proportion of the diamine used is 50 to 100 mol % based on the entire diamine component.

A liquid crystal display panel (100) comprises a first polarizer (110) and a second polarizer (170), a first liquid crystal layer (130) disposed between the first polarizer (110) and the second polarizer (170), and an optical compensation layer (140) disposed between the first liquid crystal layer (130) and one of the first polarizer (110) and the second polarizer (170). A transmission axis of the first polarizer (110) is perpendicular to a transmission axis of the second polarizer (170). The first liquid crystal layer (130) includes first liquid crystal molecules (130′). An included angle (γ) between an orthographic projection of an optical axis of a first liquid crystal molecule (130′) on the first polarizer (110), which is perpendicular to an orthographic projection of an optical axis of the optical compensation layer (140) on the first polarizer (110), and the transmission axis of the first polarizer (110) is an acute angle,

According to one embodiment, a display device comprises first and second substrates. The first substrate comprise first and second common electrodes, and a first pixel electrode including a pair of first sides arranged in a first direction. The second common electrode includes first and second trunk portions, and a first branch portion extending from the second trunk portion toward the first trunk portion. The first pixel electrode is located between the trunk portions. The first branch portion overlaps with the first pixel electrode between the first sides. A width of the first pixel electrode between the first sides becomes smaller toward the second trunk portion.

According to one embodiment, a light control device comprises a first liquid crystal cell includes a first liquid crystal layer, a second liquid crystal cell includes a second liquid crystal layer, and a third liquid crystal cell includes a third liquid crystal layer. The first liquid crystal layer and the third liquid crystal layer each have a first region that scatters a first polarization component and that transmits a second polarization component. The second liquid crystal layer has a third region that overlaps the first region and converts the second polarization component into the first polarization component.

A projection type transparent display includes a polarization modulator and a reflective layer. The polarization modulator is stacked in sequence by a linear polarizer, a liquid crystal layer and a phase retarder. The reflective layer is stacked on the phase retarder. A projection light is incident on the linear polarizer to form a linearly polarized light. The liquid crystal layer changes a polarization direction of the linearly polarized light. Two kinds of linearly polarized projection lights with polarization directions orthogonal to each other are respectively formed and pass through the phase retarder to respectively form two kinds of circularly polarized projection lights with opposite rotation directions. A background light is incident on the reflective layer. A circularly polarized background light with the same spiral direction is reflected, and the circularly polarized background light opposite to the spiral direction passes through the reflective layer and is incident on the polarization modulator.

The present disclosure provides an array substrate and a liquid crystal display panel, belonging to the file of display technology. The array substrate includes a base substrate, a first electrode, an insulating dielectric layer and a second electrode stacked in sequence; the second electrode is provided with at least one hollow hole, and the hollow hole is in a shape of convex polygon, circle or ellipse.

A liquid crystal composition includes the following compounds: (in a range of 21.5 to 26.5 parts by weight) a compound represented by a first chemical formula, (in a range of 2.5 to 7.5 parts by weight) a compound represented by a second chemical formula, (in a range of 12.5 to 17.5 parts by weight) a compound represented by a third chemical formula, (in a range of 5.5 to 10.5 parts by weight) a compound represented by a fourth chemical formula, (in a range of 7.5 to 12.5 parts by weight) a compound represented by a fifth chemical formula, (in a range of 2 to 7 parts by weight) a compound represented by a sixth chemical formula, (in a range of 10.5 to 15.5 parts by weight) a compound represented by a seventh chemical formula, and (in a range of 13 to 18 parts by weight) an compound represented by an eighth chemical formula 8.

A privacy display comprises a spatial light modulator and a compensated switchable liquid crystal retarder arranged between first and second polarisers arranged in series with the spatial light modulator. 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. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction over a wide polar field. In a wide angle mode of operation, the switchable liquid crystal retardance is adjusted so that off-axis luminance is substantially unmodified.

A privacy display comprises a spatial light modulator and a compensated switchable liquid crystal retarder arranged between first and second polarisers arranged in series with the spatial light modulator. 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. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction over a wide polar field. In a wide angle mode of operation, the switchable liquid crystal retardance is adjusted so that off-axis luminance is substantially unmodified.

According to one embodiment, a polarization conversion element includes a first substrate including a first plane electrode and a first control electrode, a second substrate, and a liquid crystal layer. The first control electrode comprises a first strip electrode, a second strip electrode, a third strip electrode, and a first common electrode. The first strip electrode and the first common electrode are orthogonal to each other, respective extension directions of the first to third strip electrodes are different from each other, and an angle formed by the first strip electrode and the third strip electrode is greater than an angle formed by the first strip electrode and the second strip electrode.