175results about How to "Big contrast" patented technology

A liquid crystal compound represented by formula (1), a liquid crystal composition comprising the compound, and a liquid crystal display device comprising the composition:

For example, R¹ is alkyl having 1 to 20; ring A¹, ring A², ring A³, ring A⁴, ring A⁵, and ring A⁶ are 1,4-cyclohexylene or 1,4-phenylene; Z¹, Z², Z³, Z⁴, Z⁵, and Z⁶ is a single bond; X¹ is hydrogen or halogen; l, m, n, o, p, and q are 0 or 1, and l+m+n+o+p+q is 3.

Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants K₃₃ and K₁₁ (K₃₃: bend elastic constant, K₁₁: splay elastic constant), and has suitable negative dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition are also provided.

The liquid crystal compound is represented by one of formulas (a) to (d), the liquid crystal composition contains the liquid crystal compound, and the liquid crystal display device contains the liquid crystal composition:

wherein Ra and Rb are independently linear alkyl or linear alkoxy, rings A¹, A², B and C are independently trans-1,4-cyclohexylene or 1,4-phenylene, Z¹¹, Z¹², Z² and Z³ are independently a single bond or alkylene, and one of X₁ and X₂ is fluorine, and the other thereof is chlorine.

A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.

A liquid crystal compound selected from a group of compounds represented by formula (a):

wherein Ra and Rb are each independently hydrogen, alkyl having 1 to 10 carbons or alkenyl having 2 to 10 carbons, provided that in the alkyl, —CH₂— may be replaced by —O—, but plural —O— are not adjacent to each other, and hydrogen may be replaced by fluorine; ring A¹ and ring A² are each independently trans-1,4-cyclohexylene or 1,4-phenylene, provided that one or two hydrogens of the 1,4-phenylene may be replaced by halogen, and in a 6-membered ring of these groups, one —CH₂— or two —CH₂— that are not adjacent to each other may be replaced by —O—, and one or two —CH═ may be replaced by —N═; Z¹ and Z² are each independently a single bond, —(CH₂)₂—, —(CH₂)₄—, —CH═CH—, —C≡—, —CH₂O—, —OCH₂—, —COO—, —OCO— or —OCF₂—; l and m are each independently 0, 1 or 2, provided that l+m is 0, 1, 2 or 3; and n is an integer of from 0 to 6, provided that in —(CH₂)_n—, —CH₂— may be replaced by —O—, but plural —O— are not adjacent to each other, and hydrogen may be replaced by fluorine.

A fabric is provided for use in safety apparel, including a first yarn type comprising at least about 60 percent modacylic fibers and a second yarn type comprising an intimate blend of anti-static fibers and other fibers selected from the group of fibers consisting of polyester, nylon, rayon, modacrylic, cotton, wool, and combinations thereof. The fabric meets the American Society for Testing and Materials standard ASTM F-1506 for flame resistance, Federal Test Method Standard 191A, Method 5931 for electrostatic decay, and the Electrostatic Discharge Association Advisory ADV11.2-1995 voltage potential.

There is disclosed a sulfonium salt represented by the following general formula (1). In the formula, X and Y each represents a group having a polymerizable functional group; Z represents a divalent hydrocarbon group having 1 to 33 carbon atoms optionally containing a hetero atom; R¹ represents a divalent hydrocarbon group having 1 to 36 carbon atoms optionally containing a hetero atom; and R² and R³ each represents a monovalent hydrocarbon group having 1 to 30 carbon atoms optionally containing a hetero atom or R² and R³ may be bonded with each other to form a ring together with a sulfur atom in the formula. There can be provided a sulfonium salt usable as a resist composition providing high resolution and excellent in LER in photolithography using a high energy beam such as an ArF excimer laser, an EUV light and an electron beam as a light source, a polymer obtained from the sulfonium salt, a resist composition containing the polymer and a patterning process using the resist composition.

A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.

A two-photon absorbing optical recording material comprising at least one two-photon absorbing compound and a recording component is provided. Recording is made on it by utilizing the two-photon absorption of the two-photon absorbing compound in the material, and then the material is irradiated with light to thereby detect the difference in the reflectance between the recorded area and the unrecorded area thereof, and the recorded information is thereby reproduced from the material, and also provided are a photosensitive polymer composition and a photon-mode recording method for the material.

Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

The invention provides a liquid crystal compound which has stability to heat, light and so forth, shows liquid crystal phases in a wide temperature range, and has a small viscosity, an appropriate optical anisotropy, a large dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition which has an appropriate optical anisotropy, an appropriate dielectric anisotropy, a low threshold voltage, and a high maximum temperature and a low minimum temperature of a nematic phase. The invention provides a liquid crystal display device which has a short response time, a small power consumption, a small driving voltage, and a large contrast, and can be used in a wide temperature range.

The liquid crystal compound is a halogeno-benzene derivative having a trifluoropropenyl group or trifluoropropynyl group at a side chain, such as, for example, trans-4′-[3,5-difluoro-4-(3,3,3-trifluoropropenyl)phenyl]-trans-4-propylbicyclohexyl. The liquid crystal composition contains a compound which is this derivative. The liquid crystal display device uses this liquid crystal composition.

A meter apparatus and a character plate thereof is provided. A vehicle-use combination meter 1 as a meter apparatus has a casing 3, a speedometer 4a, an inside-cover plate 10, and a bulb 15. The speedometer 4a has a movement 7a accommodated in the casing 3, a pointer 12a attached to an output shaft 8a of the movement 7a, and a vehicle speed indication character plate 6a. The vehicle speed indication character plate 6a as a character plate of the meter apparatus has a circular plate member 20 and a ring-like framing member 21. A numerical scale 9b is formed on the surface 20a of the plate member 20. A morning sun expression 26 is provided on the surface 20a of the plate member 20. A peripheral scale 9a is formed on a second surface 21a of the framing member 21. A metal layer 31 is overlaid on the second surface 21a of the framing member 21. Grooves 32 are formed on the metal layer 31. The inside-cover plate 10 is attached to the casing 3. The bulb 15 is attached to the inside-cover plate 10. The bulb 15 is arranged nearer a crew than the vehicle speed indication character plate 6a. The bulb 15 illuminates the whole surface 20a of the plate member.

A photosensitive polyimide resin precursor composition capable of providing a polyimide resin that is not substantially colored, is transparent and has heat resistance, an optical polyimide resin obtained from the composition, and an optical waveguide using the polyimide resin. The photosensitive polyimide resin precursor composition contains (a) 100 parts by weight of a polyamic acid obtained from a tetracarboxylic acid dianhydride and a diamine, (b) 0.01 parts by weight or more and less than 5 parts by weight of a 1,4-dihydropyridine derivative, (c) 5-50 parts by weight of a glycol (ether). The optical polyimide resin is obtained by irradiating the photosensitive resin precursor composition with UV light, followed by exposure, heating, development, and then heating. The optical waveguide comprises a core layer comprising the optical polyimide resin, and a cladding layer thereof.

A pixel circuit substrate includes a first interlayer insulating film which is made of an inorganic material at least in a source and drain regions of a thin film transistor. A contact hole is formed in an area above the source and drain regions of a thin film transistor in the first interlayer insulating film. A wiring layer is formed on the first interlayer insulating film, extends to an inner wall and a bottom surface of the contact hole. On a top surface of the wiring layer is formed a recess reflecting the shape of a contact hole. A second interlayer insulating film is formed on the wiring layer, embedded in the recess and has a flat top surface in an area above the thin film transistor. A storage capacitor on the second interlayer insulating film is disposed in the area above the thin film transistor.

A puncture indicating glove comprises a bilayer formed by an inner glove layer and an outer glove layer, the outer glove having an opacity in the range of 23-34%. The opacity of the over glove is controlled by the inclusion in the over glove of a fine particulate material, in particular selected from the group comprising titanium dioxide, silica, barite powder, barium sulphate, barium carbonate, calcium carbonate, gypsum, clay, talc, alumina white, basic magnesium carbonate, zinc oxide. The inner glove has a chroma range C* which is controlled to result in a glove that indicates optimally with transparent liquid and strongly coloured liquids such as blood. The inner glove has a chroma C* which is greater than 30, advantageously greater than 40, more preferably greater than 43, and in particular greater than 46.