Abstract: A display medium comprises: a pair of electrodes to which a voltage is applied; and a liquid crystal layer stack provided between the pair of electrodes. The liquid crystal layer stack contains a first liquid crystal layer having a first liquid crystal that undergoes transition into a specific alignment state in response to the voltage applied to the electrodes becoming equal to or greater than a first voltage value, and a second liquid crystal layer having a second liquid crystal that undergoes transition into the specific alignment state in response to the voltage becoming equal to or greater than a second voltage value. The second voltage value is greater than the first voltage value, and the second liquid crystal has a higher isotropic phase transition temperature than the first liquid crystal.

Abstract: An organic electroluminescent device, having an organic compound layer including two or more layers including at least a buffer layer and an emitting layer, wherein at least one of the organic compound layers other than the buffer layer contains at least one charge-transporting polyester represented by Formula (I-1) or (I-2), and the buffer layer is formed in contact with an anode and contains a crosslinked compound formed by using at least one charge injection material containing a substituted silicon group and represented by Formula (III).

Abstract: An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1).

Abstract: A liquid crystal display element includes a first substrate having a first electrode on one surface thereof, a transparent second substrate having a transparent second electrode on one surface thereof, a first liquid crystal layer containing a liquid crystal composition, a color filter, and a second liquid crystal layer containing a liquid crystal composition, and at least one of the first and second liquid crystal layers includes an additive having dielectric properties, and the dielectric constant of the first liquid crystal layer is different from that of the second liquid crystal layer.

Abstract: A screen device of the present invention has a light collecting element array including a plurality of light collecting elements that collect incident light from a projector and a back surface sheet. The back surface sheet includes a first electrode plate, a second electrode plate, a photoconductive layer disposed between the first electrode plate and the second electrode plate, and an image recording layer disposed between the first electrode plate and the photoconductive layer. At the back surface sheet, a light reflecting portion is formed at a light collecting region to which the light collected by the light collecting elements is irradiated, and a light absorbing portion is formed at a non-light collecting region to which the light collected by the light collecting elements is not irradiated.

Abstract: A liquid crystal-containing composition includes a microcapsule. In the microcapsule, a liquid crystal is encapsulated by a shell material component containing polyurea. Monomer components included in the polyurea include a polyisocyanate component, a high molecular weight polyamine component and a low molecular weight polyamine component.

Abstract: A liquid crystal-containing composition includes a cholesteric liquid crystal and a microcapsule wall that encapsulates the cholesteric liquid crystal, the microcapsule wall includes at least one material selected from polyurethane and polyurea, and the content of the microcapsule wall with respect to 100 parts by weight of the cholesteric liquid crystal is from about 0.1 parts to about 11 parts by weight.

Abstract: An organic electroluminescent device with a pair of electrodes having an anode and a cathode, and one or more organic compound layers disposed therebetween. One of the anode or the cathode is transparent or semitransparent.

Abstract: A thiophene-containing compound polymer represented by Y represents a bivalent hydrocarbon group; R5 represents a hydrogen atom; Z represents a bivalent hydrocarbon group; m represents 1; p represents an integer of 5 to 5,000; B and B? each represent OCH2CH2OH, and A represents a group represented by the following formula (X-III): Ar1 is a substituted or unsubstituted monovalent aromatic group; R1 to R3 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n representing an integer of 1 to 5.

Abstract: A display medium comprises: a pair of electrodes to which a voltage is applied; and a liquid crystal layer stack provided between the pair of electrodes. The liquid crystal layer stack contains a first liquid crystal layer having a first liquid crystal that undergoes transition into a specific alignment state in response to the voltage applied to the electrodes becoming equal to or greater than a first voltage value, and a second liquid crystal layer having a second liquid crystal that undergoes transition into the specific alignment state in response to the voltage becoming equal to or greater than a second voltage value. The second voltage value is greater than the first voltage value, and the second liquid crystal has a higher isotropic phase transition temperature than the first liquid crystal.

Abstract: A liquid crystal-containing composition includes a first cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 600 nm to 800 nm and encapsulated in a microcapsule and a second cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 400 nm to 500 nm as the only liquid crystals, and the content of the second cholesteric liquid crystal with respect to the entire cholesteric liquid crystal content is from about 5 weight % to about 40 weight %.

Abstract: A liquid crystal-containing composition and a liquid crystal display device including the same, the liquid crystal-containing composition including a cholesteric liquid crystal and microcapsules containing the cholesteric liquid crystal, and having a wall component comprising at least one selected from the group consisting of polyurethane and polyurea, the wall component further including a first isocyanurate component having a cyclo ring structure and a second isocyanate component other than the first isocyanurate component.

Abstract: A liquid crystal display element includes a first substrate having a first electrode on one surface thereof, a transparent second substrate having a transparent second electrode on one surface thereof, a first liquid crystal layer containing a liquid crystal composition, a color filter, and a second liquid crystal layer containing a liquid crystal composition, and at least one of the first and second liquid crystal layers includes an additive having dielectric properties, and the dielectric constant of the first liquid crystal layer is different from that of the second liquid crystal layer.

Abstract: A screen device of the present invention has a light collecting element array including a plurality of light collecting elements that collect incident light from a projector and a back surface sheet. The back surface sheet includes a first electrode plate, a second electrode plate, a photoconductive layer disposed between the first electrode plate and the second electrode plate, and an image recording layer disposed between the first electrode plate and the photoconductive layer. At the back surface sheet, a light reflecting portion is formed at a light collecting region to which the light collected by the light collecting elements is irradiated, and a light absorbing portion is formed at a non-light collecting region to which the light collected by the light collecting elements is not irradiated.

Abstract: An organic electroluminescent device having a pair of electrodes including a positive electrode and a negative electrode at least one of which is transparent or translucent, and one or more organic compound layers interposed between the pair of electrodes, at least one layer of the organic compound layers containing at least one charge transporting polyester having a repeating unit that contains at least one structure selected from structures represented by the following formula (I-1) as a partial structure.

Abstract: A liquid crystal-containing composition includes a cholesteric liquid crystal and a microcapsule wall that encapsulates the cholesteric liquid crystal, the microcapsule wall includes at least one material selected from polyurethane and polyurea, and the content of the microcapsule wall with respect to 100 parts by weight of the cholesteric liquid crystal is from about 0.1 parts to about 11 parts by weight.

Abstract: A liquid crystal-containing composition includes a first cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 600 nm to 800 nm and encapsulated in a microcapsule and a second cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 400 nm to 500 nm as the only liquid crystals, and the content of the second cholesteric liquid crystal with respect to the entire cholesteric liquid crystal content is from about 5 weight % to about 40 weight %.

Abstract: A thiophene-containing compound polymer represented by Y represents a bivalent hydrocarbon group; R5 represents a hydrogen atom; Z represents a bivalent hydrocarbon group; m represents 1; p represents an integer of 5 to 5,000; B and B? each represent OCH2CH2OH, and A represents a group represented by the following formula (X-III): Ar1 is a substituted or unsubstituted monovalent aromatic group; R1 to R3 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n representing an integer of 1 to 5.

Abstract: An organic electroluminescent device with a pair of electrodes having an anode and a cathode, and one or more organic compound layers disposed therebetween. One of the anode or the cathode is transparent or semitransparent.

Abstract: A method for producing a polymer organic electronic material comprising: synthesizing a polymer organic electronic material by condensing a precursor monomer for the polymer organic electronic material in the presence of a metal catalyst, preparing a polymer organic electronic material solution by dissolving the polymer organic electronic material in an organic solvent, and removing metal ions, which originate from the metal catalyst, from the polymer organic electronic material solution by using an ion exchange resin; a polymer organic electronic material which can be obtained by the method; and an organic electroluminescent device which uses the polymer organic electronic material.