摘要:
A polymer dispersion type liquid crystal (PDLC) display element comprising a complex of polymers and liquid crystal droplets held between a pair of substrates. The liquid crystal droplets are deformed into a compressed structure of their being contracted in a cell gap direction and an amount of deformation of the liquid crystal droplets is set to be in range in which a phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals. The amount of deformation of the liquid crystal droplets, is set to be in range in which the phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals can provide an increased tendency of the liquid crystal molecules to align in parallel to a phase boundary of the substrates. The DPLC display element having excellent threshold characteristics and scattering characteristics and high display characteristics can be achieved.
摘要:
A polymer dispersion type liquid crystal display element according to the invention is structured such that a complex of polymer and liquid crystal droplets is held between a pair of substrates. The liquid crystal droplets are deformed into a compressed structure of their being contracted in a cell gap direction and an amount of deformation of the liquid crystal droplets is set to be in range in which a phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals. This construction that the amount of deformation of the liquid crystal droplets is set to be in range in which the phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals can provide an increased tendency of the liquid crystal molecules to align in parallel to a phase boundary of the substrates. As a result of this, the polymer dispersion type liquid crystal display element having excellent threshold characteristics and scattering characteristics and high display characteristics can be achieved.
摘要:
A liquid-crystal panel comprises a pair of transparent glass substrates each being provided with an electrode. Between the glass substrates are disposed spacers for defining a space and a mixture of droplets of a liquid crystal having a mean diameter of 3.0 &mgr;m or less and of a photo-curing polymer. The edge portions of the glass substrates are sealed with a seal polymer. In curing the photo-curing polymer during the process of manufacturing the liquid-crystal panel, the dose of an ultraviolet ray is set to 500 mJ/cm2 or more so as to reduce the diameters of the droplets of the liquid crystal, thereby preventing light leakage in the state without a voltage applied and improving the contrast. If the spacers are colored, the effect of preventing light leakage is increased. If the spacers are subjected to a surface treatment for rejecting the liquid crystal or composed of a polymer material of the same type as that of the photo-curing polymer, variations in diameter of the droplets of the liquid crystal can be prevented. With the structure, it becomes possible to provide a liquid-crystal panel in which light leakage in the black mode is reduced and which presents uniform and high-contrast display of images.
摘要:
A polymer dispersed liquid crystal display element (100) in which liquid crystal (14) is dispersed in a polymer composite (15) is provided whereby gap width distortion resulting from sudden changes in temperature is prevented, and uniformity of the display image is improved. Distortion of the gap width between glass plates due to a temperature change within a specific temperature range is prevented by dispersing spherical resin spacers (16), which are resiliently compressed a specific percentage by two glass plates (11, 12) within a specific temperature range (&Dgr;t), in a liquid crystal layer (17) interposed between a glass plate (11) and another glass plate (12) that comprise a voltage application means (18, 19, 20, 21) and are mutually opposed through a seal member (13).
摘要:
An active matrix liquid crystal display for projection system comprises a light shielding layer 12 arranged between a layer 13 including thin film transistors and a first substrate 11 for shielding an injection light toward each of the thin transistors, said light shielding layer 12 having a plurality of openings through which each of the pixel electrodes 22 is exposed against the injection light. The light shielding layer 12 is preferably made of metal and is connected to an electric source. A level of voltage applied on the data lines is adverse to that applied on the light shielding layer with respect to polarity of the applied voltage.
摘要:
An optical disk substrate which includes a plurality of sectors, tracks alternately formed into lands and grooves in a direction intersecting at right angles with a tracing direction during recording or reproducing of information, a first pit row having address information and formed at a specific position of the track of a predetermined one land or groove, and a second pit row having address information and formed in a different track neighboring the track formed with the first pit row in the tracing direction, and formed at a position deviated longer than a length of the pit row from the specific position. By the above arrangement, the address information can be read without interference, with reduction of waiting time for reading.
摘要:
A cylinder block as a main part of an engine block includes a cylinder barrel assembly block, a skeleton-like frame surrounding the outer periphery of the cylinder barrel assembly block and a plate-like rigid film member, within a fluid passage in the skeleton-like frame. The skeleton-like frame is integrally joined to the outer surfaces of left and right side walls of the assembly block along the crankshaft axis and includes crossbeam bone members, longitudinal beam bone members and post bone members which are rigid and unitarily assembled into a three-dimensional latticework structure. A cylinder head is integrally coupled to the deck surface of the cylinder block and a lower case is integrally coupled to the lower surface of the cylinder block, lateral outer surfaces of the block and lower case along the crankshaft axis being formed flush with each other in parallel with the cylinder bore axis. The lower case includes a lower case frame of three-dimensional latticework structure and rigid film members at least on the lateral outer surfaces of the lower case frame along the crankshaft axis. Moreover, the lower case is secured to the lower surface of the cylinder block by bolts and an oil pan is floatingly carried on the lower surface of the lower case via resilient members. The cylinder block has at its one end surface along the crankshaft axis a square, transmission mating surface and a divergent bulged portion extending from a rear part of the cylinder block toward the mating surface.
摘要:
A hydrostatically operated continuously variable transmission includes a cylinder block centrally coupled to a transmission shaft coupled to an engine, a swash-plate-type axial-piston hydraulic pump having a group of pump plungers, a hydraulic motor having a group of motor plungers, and a closed hydraulic circuit by which the hydraulic pump and the hydraulic motor are interconnected. The groups of pump and motor plungers are disposed in annular patterns in the cylinder block, and disposed concentrically such that one of the groups surrounds the other group. The plunger groups are positionally displaced in the circumferential direction of the cylinder block such that a circle inscribed in said one group passes through the other group.