Toppan Printing Co., Ltd.

Toyo Ink Mfg. Co., Ltd.

Nichia Corporation

Hidesato Hagiwara

Koichi Minato

Mie Shimizu

Kenzo Fukuyoshi

Takeshi Itoi

Masayuki Yamamoto

Hiromitsu Ito

Takao Taguchi

Satoshi Ohkuma

Hideyo Tanaka

Yoshiko Ishimaru

Sohei Kadota

Takumi Saito

Takeshi Ikeda

Takashi Yamauchi

Akira Hirano

Yuki Saito

Yoshinori Murazaki

Suguru Takashima

Yusuke Iida

Sosuke Akao

Mizuhiro Tani

Yasuhiro Hibayashi

Ichiro Toyoda

Nozomi Onaka

Masafumi Harada

Kenro Sunahara

Atsuko Kamada

Kenji Muneuchi

Noriko Asahi

Mayumi Ogura

Tadashi Hosono

In a substrate for a liquid crystal display device, a black matrix, a transparent electroconductive film and a resin layer are formed above a transparent substrate. The black matrix is a light-shielding layer in which light-shielding pigments are dispersed in a resin, and includes openings. The resin layer is formed above the transparent substrate including the black matrix and the transparent electroconductive film, forms a convex part above the black matrix, and forms, in a region that passes through a center of each of the openings in the black matrix, a concave part.

Substrate for liquid crystal display device, and liquid crystal display device

A color filter substrate for use in a fringe-field switching mode liquid crystal display wherein the color filter substrate and an array substrate provided with a comb-shaped pixel electrode having an electrode width of 10 &#x3bc;m or less are arranged facing each other with a liquid crystal layer interposed therebetween. The color filter substrate comprises a transparent substrate, a black matrix provided on the transparent substrate, includes an organic pigment as a main coloring agent, color pixels having a relative dielectric constant of 2.9 or more but 4.4 or less, and a transparent resin layer provided on the color pixels. The relative dielectric constant of each of the color pixels falls within &#xb1;0.3 of an average relative dielectric constant of the color pixels.

Color filter substrate and fringe-field switching mode liquid crystal display using same

The invention minimizes a disclination of a transflective type liquid crystal display device. The device includes a transparent substrate, a black matrix dividing rectangular pixels, a transparent electroconductive film, a resin layer having a concave region at an each pixel center, and a cell gap adjusting layer formed partially above the resin layer and forming convex regions above the black matrix. The pixels are formed symmetrically to a center and have a transmission region and a reflection region in an order that from a position near the center. In the transmission region, the resin layer is laminated above the transparent electroconductive film. In the reflection region, the resin layer and the cell gap adjusting layer are laminated above the transparent electroconductive film.

Transflective type liquid crystal display device substrate, color filter substrate, and liquid crystal display device

A liquid crystal display device includes a first substrate, a second substrate located opposite the first substrate via a liquid crystal, a blue display element, a green display element, a red display element, a short-wavelength optical sensor, a red optical sensor, and an infrared optical sensor formed on a liquid crystal side surface of the first substrate, and a color filter formed between the first substrate and the second substrate and includes a blue filter, a green filter, a first red filter, a short-wavelength transmission filter, a second red filter, and an infrared transmission filter corresponding to the blue display element, the green display element, the red display element, the short-wavelength optical sensor, the red optical sensor, and the infrared optical sensor, respectively.

Liquid crystal display device, black matrix substrate and color filter substrate

Disclosed is a color filter substrate which exhibits color filter contrast of not less than 9000 and includes a transparent substrate, and a plurality of color pixels differing in color and formed on the transparent substrate, wherein each of the plurality of color pixels is formed of a photosensitive color composition containing two or more kinds of pigments, a birefringence &#x394;n of a pigment dispersion represented by following equation (1) and a content of pigments contained in the photosensitive composition satisfies prescribed conditions, and, an absolute value of retardation in thickness direction (Rth) of the color pixels which is represented by following equation (2) is confined to a range of 0-3 nm.&#x394;&#x2003;&#x2003;(1)={()/2&#x2212;&#x2003;&#x2003;(2)

Color filter substrate for liquid crystal display devices and liquid crystal display devices

A liquid crystal display device which includes a backlight device provided with an LED, and a color filter having colored layers of plural colors including a green layer, wherein the green layer of the color filter contains brominated zinc phthalocyanine green pigment and a dielectric loss tangent of the green layer at a driving frequency of a liquid crystal display device is confined to not more than 0.02.

Liquid crystal display device and color filter for liquid crystal display device

Disclosed a liquid crystal display device including a backlight device including a white-emitting LED device which emits a white light arising from a color mixture created through a combination of a blue-emitting LED, a red-emitting phosphor and a green-emitting phosphor, and a color filter equipping color pixels exhibiting plural colors including a red pixel and formed on a transparent substrate, wherein the white-emitting LED device is enabled to exhibit an emission spectrum having a first peak wavelength falling within a range of 440-470 nm, a second peak wavelength falling within a range of 510-550 nm and a third peak wavelength falling within a range of 630-670 nm, and a red display chromaticity of the liquid crystal display device is confined within a region bounded by lines connecting four points (0.620, 0.280), (0.620, 0.300), (0.680, 0.315) and (0.680, 0.280) based on an xy chromaticity coordinate system.

A coloring composition for a color filter includes a transparent resin, an organic pigment dispersed in the transparent resin, and a retardation-regulating agent dispersed in the transparent resin and containing a compound which is capable of increasing retardation in the thickness direction to minimize the difference in retardation among colored pixels. A color filter having colored pixels formed on a transparent substrate uses this coloring composition. A liquid crystal display device using this color filter may have improved black image quality and contrast.

Color filter having a retardation-regulating agent, coloring composition for a color filter, and liquid crystal display device having a color filter

A coloring composition for a color filter, which includes a transparent resin, an organic pigment dispersed in the transparent resin, and a retardation-regulating agent containing a compound which is capable of increasing a retardation. A color filter which is provided with colored pixels formed on a transparent substrate by using this coloring composition. A liquid crystal display device which is provided with this color filter.

Color filter, coloring composition for color filter and liquid crystal display device

A method of evaluating a color filter including a substrate, and at least three color pixels disposed thereon, the method includes determining an oblique visibility of a liquid crystal display device equipped with the color filter on the basis of value &#x3be;obtained from the equation (1):&#x3be;=&#x222b;&#x394;(&#x3bb;)&#xb7;(&#x3bb;)&#x2003;&#x2003;(1)wherein 'a' and 'b' are values respectively representing a wavelength range of a continuous wavelength light and satisfying conditions of 380&#x2266;a, b&#x2266;780 and a&#x3c;b; &#x394;(&#x3bb;) represents an optical retardation obtained by irradiating each of color pixels with a continuous wavelength light containing light components with wavelength &#x3bb; falling within a range of 380 nm to 780 nm at an incident angle, and subjecting the transmitted light to measurement using a spectroscopic ellipsometer, and T(&#x3bb;) represents a spectral transmittance of the color pixels measured at the wavelength &#x3bb; falling within a range of 380 nm-780 nm.

Method for evaluating color filter, color filter and liquid crystal display device

A red-colored film in which when an elliptically polarized light is incident on the film in a direction 45&#xb0; aslant from a normal line direction with respect to a surface of the film, a light transmitted through the film has an average amplitude transmittance ratio (av. tan &#x3a8;) in a wavelength region of 575 to 635 nm, which satisfies the following equation (1):0.960&#x3c;av. tan &#x3a8;&#x3c;1.040&#x2003;&#x2003;(1).A red-colored composition contains a red pigment A having a BET specific surface area in the range from 90 to 140 m/g, a red pigment B having a BET specific surface area in the range from 70 to 85 m/g, and a pigment carrier formed of a transparent resin, a precursor of the transparent resin or a mixture of the tarns parent resin and precursor thereof. A color filter has the red-colored film as a red color filter segment. The liquid crystal display device includes the color filter.

Red colored film, red colored composition, color filter and liquid crystal display device

A color filter is provided with red, green and blue color filter segments. When chromaticity coordinates (x, y) in a chromaticity diagram of XYZ color specification system are measured with the color filter being sandwiched between two polarizers, a chromaticity (x, y) of parallel-transmitted light and a chromaticity (x, y) of orthogonal-transmitted light satisfy the following formula (1):&#x394;=[()+()]&#x3c;0.130&#x2003;&#x2003;(1)A liquid crystal display device is provided with such a color filter.

Color filter and liquid crystal display device provided with the same

A blue colored composition for a color filter contains a pigment carrier comprising a transparent resin, a precursor thereof or a mixture thereof, a blue pigment having a specific surface area of 90 to 140 m/g, and a violet pigment having a specific surface area in a range of 100 to 150 m/g, but having a greater specific surface area than that of the blue pigment used. A color filter includes a filter segment formed from the blue colored composition.

Blue colored composition for color filter and color filter

A color filter includes a plurality of colored layers which are arranged adjacently to each other and have different spectroscopic properties. At least one colored layer contains a dye chemically bonded to a polymer chain.

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Tokyo, Japan

Hidesato Hagiwara