A compound having a maximum absorption in a wavelength range of 350 nm to 550 nm that functions as a dichroic dye is provided. In particular, a compound represented by formula (1) is provided. In the compound of formula (1), R.sup.1 represents a hydrogen atom or the like; R.sup.2 represents a hydrogen atom or the like; R.sup.3 represents a hydrogen atom or the like; Z represents —CO— or the like; and Y represents a group of formula (Y1). In the group of formula (Y1), * represents a bonding site with N, or a group of formula (Y2); and in the group of formula (Y2), * represents a bonding site with N; P.sup.1 and P.sup.2 each independently represent —S— or the like; and Q.sup.1 and Q.sup.2 each independently represent ═N— or the like.

##STR00001##

The embodiment of the present invention discloses a display panel, a manufacturing method thereof, and a display device. In the embodiment of the present invention, a liquid crystal layer of the display panel includes a plurality of dichroic dye liquid crystal microcapsules, a dichroic dye in dichroic dye liquid crystal microcapsules can absorb incident light such that when the display panel performs no signal transmission, the dichroic dye polymer network liquid crystal can effectively absorb incident light to lower a dark state transmittance of the display panel to further enhance contrast of the display panel and improve optical characteristics thereof.

The present invention relates to a light transmission control panel for a smart window capable of actively adjusting light transmittance as necessary, and a smart window for a vehicle having the same. The present invention discloses The light transmission control panel for a smart window comprising: a first substrate on which a first electrode formed on one surface; a second substrate on which a second electrode is formed on one surface; and a liquid crystal capsule layer provided between the first substrate and the second substrate. According to the present invention of the light transmittance control panel, it has the effect of implementing improved viewing angle characteristics and medium level gray driving characteristics compared to conventional light transmittance control panel.

A light modulation element that can vary between a bright transparent mode and a dark scattering mode is provided. The light modulation element has a first light modulation layer and a second light modulation layer comprising nematic liquid crystals and a dichroic dye in a scattering mode when a voltage is applied. The first light modulation layer and the second light modulation layer are disposed to overlap each other. The light modulation element has an improved contrast ratio and haze-variable characteristics, without precipitation of dichroic dyes and an increase in power consumption.

An electronic device is provided. The electronic device includes a display panel, a first light modulation element, and a second light modulation element. The first light modulation element is overlapped with the display panel. The first light modulation element includes a first electrode, a second electrode and a first light modulation material. The first light modulation material is disposed between the first electrode and the second electrode. The second light modulation element is overlapped with the display panel and the first light modulation element. The second light modulation element includes a third electrode, a fourth electrode and a second light modulation material. The second light modulation material is disposed between the third electrode and the fourth electrode.

The present disclosure relates to a display device and a preparation method of the display device, and relates to the field of display technology. The display device includes a lower polarizing plate and an upper polarizing plate arranged oppositely, and an embedded polarizing layer located between the lower polarizing plate and the upper polarizing plate. The embedded polarizing layer is located between the lower polarizing plate and the upper polarizing plate, and includes a first orientation layer, a second orientation layer, and a polarizing material layer. The polarizing material layer includes a liquid crystal material. The material layer is arranged between the first orientation layer and the second orientation layer, and is in contact with both the first orientation layer and the second orientation layer. The present disclosure can enhance the contrast of the display device and improve the display effect of the display device.

A polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and an array structure formed of the second dichroic material.

Devices for the regulation of light transmission and in particular switchable windows, including window elements containing a switchable optical cell having a homeotropically aligned liquid crystal layer with a pretilt angle in the range of 77° to 88°.

Provided is a polarizer-forming composition from which a polarizer with a high degree of alignment and excellent heat resistance can be formed, a polarizer, and an image display device. The polarizer-forming composition includes a liquid crystal compound, and a dichroic material, in which the liquid crystal compound is a polymer liquid crystal compound, and a content of a component having a number average molecular weight of 1000 or less which is contained in the polymer liquid crystal compound is in a range of 0.10% to 5.0% by mass.

The embodiment of the present invention discloses a display panel, a manufacturing method thereof, and a display device. In the embodiment of the present invention, a liquid crystal layer of the display panel includes a plurality of dichroic dye liquid crystal microcapsules, a dichroic dye in dichroic dye liquid crystal microcapsules can absorb incident light such that when the display panel performs no signal transmission, the dichroic dye polymer network liquid crystal can effectively absorb incident light to lower a dark state transmittance of the display panel to further enhance contrast of the display panel and improve optical characteristics thereof.