Abstract: It is an object of the present invention to provide a composition using a polymer compound, which is useful for manufacturing a blue phosphorescent light-emitting device excellent in luminous efficiency. The present invention provides a composition including: a polymer compound substantially consisting of a constitutional unit selected from a constitutional unit represented by Formula (1)-1 below, a constitutional unit represented by Formula (1)-2 below, a constitutional unit represented by Formula (2)-1 below, a constitutional unit represented by Formula (2)-2 below, and a constitutional unit derived from a phosphorescent light-emitting compound having a light-emitting spectrum peak at smaller than 480 nm and the polymer compound containing at least both of the constitutional unit represented by Formula (1)-1 and the constitutional unit represented by Formula (1)-2; and a phosphorescent light-emitting compound having a light-emitting spectrum peak at smaller than 480 nm.

Abstract: A polymer compound is provided for achieving satisfactory brightness even at a low driving voltage when applied to a light-emitting device. A preferred embodiment includes multiple first groups and a block (A) having a structure in which the first groups are linked by a second group represented by formula (0-0), and includes at least one of a group represented by formula (0-1) or a group represented by formula (0-2) as the first group; wherein Ar0 represents an optionally substituted arylene group or divalent aromatic heterocyclic group having a structure different from the first group; n represents an average chain length of Ar0 and equals 1.0 to 8.0; and X11 to X16 and X21 to X25 each represent a carbon atom or a nitrogen atom, where two or three of X11 to X16 are a nitrogen atom and three of X21 to X25 are a nitrogen atom.

Abstract: A polymer compound comprising a constitutional unit represented by the following formula (2) and a constitutional unit represented by the following formula (1), wherein R1 represents an alkyl group or the like, and R2 and R3 each independently represent a hydrogen atom or the like, —Ar1—??(2) wherein Ar1 represents an arylene group or the like. A hydrogen atom in the group represented by Ar1 may be substituted by an alkyl group, aryl group or the like.

Abstract: The present invention provides a liquid crystal display device which allows an improvement in contrast ratio by compensating retardation given in a liquid crystal layer, even if a retardation layer has an inclined portion, and a desired retardation is varied at the inclined portion. The present invention is a vertical alignment liquid crystal display device, including: a pair of substrates facing each other; a liquid crystal layer disposed between the pair of substrates; a transmissive display region; and a reflective display region, wherein one of the pair of substrates includes a ?/4 retardation layer in the reflective display region, the ?/4 retardation layer protruding towards the liquid crystal layer, the ?/4 retardation layer includes an inclined portion inclined to a flat face of the substrate, and an azimuth of the inclined portion is substantially parallel to a slow axis azimuth of the ?/4 retardation layer.

Abstract: A polymer compound is provided for achieving satisfactory brightness even at a low driving voltage when applied to a light-emitting device. A preferred embodiment includes multiple first groups and a block (A) having a structure in which the first groups are linked by a second group represented by formula (0-0), and includes at least one of a group represented by formula (0-1) or a group represented by formula (0-2) as the first group; wherein Ar0 represents an optionally substituted arylene group or divalent aromatic heterocyclic group having a structure different from the first group; n represents an average chain length of Ar0 and equals 1.0 to 8.0; and X11 to X16 and X21 to X25 each represent a carbon atom or a nitrogen atom, where two or three of X11 to X16 are a nitrogen atom and three of X21 to X25 are a nitrogen atom.

Abstract: It is an object of the present invention to provide a composition using a polymer compound, which is useful for manufacturing a blue phosphorescent light-emitting device excellent in luminous efficiency. The present invention provides a composition including: a polymer compound substantially consisting of a constitutional unit selected from a constitutional unit represented by Formula (1)-1 below, a constitutional unit represented by Formula (1)-2 below, a constitutional unit represented by Formula (2)-1 below, a constitutional unit represented by Formula (2)-2 below, and a constitutional unit derived from a phosphorescent light-emitting compound having a light-emitting spectrum peak at smaller than 480 nm and the polymer compound containing at least both of the constitutional unit represented by Formula (1)-1 and the constitutional unit represented by Formula (1)-2; and a phosphorescent light-emitting compound having a light-emitting spectrum peak at smaller than 480 nm.

Abstract: There is provided a liquid crystal display device of high picture quality with high brightness and small display unevenness. A vertical alignment type liquid crystal display device which has a plurality of pixels includes: a first electrode which includes, in each of the plurality of pixels, a plurality of first branch portions extending in a first direction and a plurality of second branch portions extending in a second direction that is different from the first direction; a second electrode disposed so as to oppose the first electrode; and a liquid crystal layer interposed between the first electrode and the second electrode, wherein a width of each of the plurality of first branch portions and the plurality of second branch portions is in a range not less than 1.4 ?m and not more than 8.0 ?m.

Abstract: There is provided a liquid crystal display device of high image quality, which has high brightness and excellent viewing angle characteristics. A liquid crystal display device of the present invention includes a pair of polarizing plates, a first electrode, a second electrode provided so as to oppose the first electrode, and a liquid crystal layer interposed between the first electrode and the second electrode. Each of a plurality of pixels includes a first region and a second region which are separated by a line parallel to or perpendicular to the directions of the transmission axes of the pair of polarizing plates. The first electrode includes, in each of the first region and the second region, a plurality of first branch portions extending in a first direction and a plurality of second branch portions extending in a second direction that is different from the first direction. Each of the plurality of first branch portions in the first region has a first width.

Abstract: An active matrix liquid crystal display device includes: a liquid crystal layer; two substrates sandwiching the liquid crystal layer; and electrodes respectively provided in the two substrates, the electrodes applying voltage across the liquid crystal layer. A first electrode (15) in the substrate including a pixel selecting element (11) has a striped electrode pattern (15c) aligning liquid crystal molecules along a stripe line direction when voltage is applied across the liquid crystal layer. A contact (25h) of the first electrode (15) with the selecting element (11) is formed in a region opposed to, along a film thickness direction, a first region to which a signal liner (GLi) is allocated. This provides a liquid crystal display device in which a contact is made with the pixel electrode having the striped electrode pattern having the periodical arrangement, while alignment disorder of the liquid crystal molecules is not reflected on display.

Abstract: The present invention provides a multi-domain type liquid crystal display device with a vertical alignment liquid crystal layer that can get a display operation done without making the viewer sense any unnaturalness and with the decrease in optical transmittance minimized. In the liquid crystal display device of this invention, the liquid crystal layer of each pixel has liquid crystal regions in which liquid crystal molecules tilt in multiple different directions when a voltage is applied between first and second electrodes. Each pixel has an opaque portion arranged on a boundary between the liquid crystal regions. The opaque portion is provided for at least one of the substrates so that when a voltage is applied between the first and second electrodes, the liquid crystal molecules neighboring the boundary will tilt while turning one of their end portions, which is closer to the substrate with the opaque portion, away from the boundary.

Abstract: A metal complex composition comprising a metal complex including a structure represented by the following formula (1) and a charge transport material, wherein in the formula (1), Ra represents an alkyl group having 2 to 30 carbon atoms, and R1, R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 30 carbon atoms that may have a substituent, or the like, provided that adjacent groups among R1, R2, R3 and R4 may be bonded to each other to form a ring structure.

Abstract: An organic electroluminescent device comprising an anode, a cathode, a light emitting layer that is disposed between the anode and the cathode and contains a first light emitting layer material containing a phosphorescent compound and a second light emitting layer material containing a charge transporting polymer compound (that is, a light emitting layer containing a first light emitting layer material and a second light emitting layer material), and a hole transporting layer that is disposed between the anode and the light emitting layer so as to be adjacent to the light emitting layer and is composed of a hole transporting polymer compound, wherein the lowest excitation triplet energy T1e (eV) of the first light emitting layer material, the lowest excitation triplet energy T1h (eV) of the second light emitting layer material and the lowest excitation triplet energy T1t (eV) of the hole transporting polymer compound satisfy the following formulae (A) and (B): T1e?T1h??(A) T1t?T1e?0.10??(B).

Abstract: A VA-mode liquid crystal display device which includes a pair of alignment sustaining layers 34a and 34b formed by a photopolymerized material on surfaces of a pair of vertical alignment films 32a and 32b which are closer to a liquid crystal layer, and a cruciform opening 22a provided only in a counter electrode. When a predetermined voltage is applied across the liquid crystal layer, four liquid crystal domains are formed such that the azimuths of the directors of the respective liquid crystal domains are different from one another and form an angle of about 45? relative to the polarization axes of a pair of polarizing plates. When no voltage is applied across the liquid crystal layer, the pretilt azimuths of liquid crystal molecules included in regions respectively corresponding to the four liquid crystal domains are regulated by the alignment sustaining layers 34a and 34b.

Abstract: A polymer compound comprising a constitutional unit represented by the following formula (2) and a constitutional unit represented by the following formula (1), wherein R1 represents an alkyl group or the like, and R2 and R3 each independently represent a hydrogen atom or the like, -Ar1-??(2) wherein Ar1 represents an arylene group or the like. A hydrogen atom in the group represented by Ar1 may be substituted by an alkyl group, aryl group or the like.

Abstract: A composition comprising a compound represented by the following formula (1): wherein Ar represents an aryl group or a mono-valent heterocyclic group.) or a compound having a residue of a compound represented by the above-described formula (1), and a compound represented by the following formula (2): wherein one member of Z1 to Z3 represents —N? and two remainders thereof each represent —C(R?)?; Z4 and Z5 each represent —C(R?)?; one member of Z6 to Z8 represents —N? and two remainders thereof each represent —C(R?)?; Z9 and Z10 each represent —C(R?)?; R? represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group and the like. or a compound having a residue of a compound represented by the above-described formula (2).

Abstract: The present invention provides a multi-domain type liquid crystal display device with a vertical alignment liquid crystal layer that can get a display operation done without making the viewer sense any unnaturalness and with the decrease in optical transmittance minimized. In the liquid crystal display device of this invention, the liquid crystal layer of each pixel has liquid crystal regions in which liquid crystal molecules tilt in multiple different directions when a voltage is applied between first and second electrodes. Each pixel has an opaque portion arranged on a boundary between the liquid crystal regions. The opaque portion is provided for at least one of the substrates so that when a voltage is applied between the first and second electrodes, the liquid crystal molecules neighboring the boundary will tilt while turning one of their end portions, which is closer to the substrate with the opaque portion, away from the boundary.

Abstract: There is provided a liquid crystal display device of high image quality, which has high brightness and excellent viewing angle characteristics. A liquid crystal display device of the present invention includes a pair of polarizing plates, a first electrode, a second electrode provided so as to oppose the first electrode, and a liquid crystal layer interposed between the first electrode and the second electrode. Each of a plurality of pixels includes a first region and a second region which are separated by a line parallel to or perpendicular to the directions of the transmission axes of the pair of polarizing plates. The first electrode includes, in each of the first region and the second region, a plurality of first branch portions extending in a first direction and a plurality of second branch portions extending in a second direction that is different from the first direction. Each of the plurality of first branch portions in the first region has a first width.

Abstract: The present invention provides a liquid crystal display device which allows an improvement in contrast ratio by compensating retardation given in a liquid crystal layer, even if a retardation layer has an inclined portion, and a desired retardation is varied at the inclined portion. The present invention is a vertical alignment liquid crystal display device, including: a pair of substrates facing each other; a liquid crystal layer disposed between the pair of substrates; a transmissive display region; and a reflective display region, wherein one of the pair of substrates includes a ?/4 retardation layer in the reflective display region, the ?/4 retardation layer protruding towards the liquid crystal layer, the ?/4 retardation layer includes an inclined portion inclined to a flat face of the substrate, and an azimuth of the inclined portion is substantially parallel to a slow axis azimuth of the ?/4 retardation layer.

Abstract: A pixel of a liquid crystal display device of the present invention includes a liquid crystal layer 42, a pixel electrode 12 and a counter electrode 22 opposing each other via the liquid crystal layer, a pair of vertical alignment films 32a, 32b, and alignment sustaining layers 34a, 34b formed by a photopolymerized material on surfaces of the alignment films which are closer to the liquid crystal layer. The pixel electrode has cruciform trunk portions 12h, 12v which are positioned so as to coincide with polarization axes of the pair of polarizing plates and a plurality of branch portions 12a, 12b, 12c, and 12d extending from the cruciform trunk portions in directions of approximately 45°. The counter electrode has a cruciform opening 22a which is positioned so as to oppose the cruciform trunk portions. When a predetermined voltage is applied across the liquid crystal layer, four liquid crystal domains are formed.

Abstract: A VA-mode liquid crystal display device which includes a pair of alignment sustaining layers 34a and 34b formed by a photopolymerized material on surfaces of a pair of vertical alignment films 32a and 32b which are closer to a liquid crystal layer, and a cruciform opening 22a provided only in a counter electrode. When a predetermined voltage is applied across the liquid crystal layer, four liquid crystal domains are formed such that the azimuths of the directors of the respective liquid crystal domains are different from one another and form an angle of about 45? relative to the polarization axes of a pair of polarizing plates. When no voltage is applied across the liquid crystal layer, the pretilt azimuths of liquid crystal molecules included in regions respectively corresponding to the four liquid crystal domains are regulated by the alignment sustaining layers 34a and 34b.