Toppan Printing Co., Ltd.

Toyo Ink Mfg. Co., Ltd.

Dic Corporation

Toyo Ink Sc Holdings Co., Ltd.

Toyocolor Co., Ltd

Dic Corportion

Koichi Minato

Mie Shimizu

Takeshi Itoi

Hidesato Hagiwara

Kenzo Fukuyoshi

Sohei Kadota

Masayuki Yamamoto

Manabu Ito

Sosuke Akao

Satoshi Ohkuma

Hideyo Tanaka

Masaharu Takahashi

Yasuhiro Hibayashi

Takeshi Ikeda

Masahiro Kubo

Akira Hirano

Yuki Saito

Kazunori Yamada

Satoshi Okutsu

Yusuke Iida

Atsushi Nishida

Kenro Sunahara

Takumi Saito

Yukino Miyagawa

Toshihisa Watanabe

Koki Tsubaki

Tomoyuki Kadowaki

Yoshinori Nagasaki

Kazumichi Haraguchi

Mitsuhisa Hatashima

A near-infrared absorbing composition including a near-infrared absorbing dye [A], a resin-based dispersant [B1] having an amine value in the range from 20 to 200 (mg KOH/g), and a binder resin [C] having a weight average molecular weight in the range from 5,000 to 40,000 and an acid value of 130 mg KOH/g or less.

Near-infrared absorbing composition for solid-state imaging device and filter

A liquid crystal display according to an embodiment includes a first light-emitting device that emits short-wavelength light of a wavelength 360 nm to 420 nm and a second light-emitting device that emits visible light. Electrodes of the liquid crystal display includes a light-guiding electrode that drives a liquid crystal contained in the liquid crystal layer to emit the short-wavelength light and a pixel electrode that drives the liquid crystal contained in the liquid crystal layer to emit the visible light. The photoreceptors are each a phototransistor including a transparent channel layer containing two metallic oxides or more from gallium, indium, zinc, hafnium, tin, and yttrium. The photoreceptors include a first photoreceptor overlaps with the blue filter in the plan view and a second photoreceptor overlaps with the green filter, the red filter, or the black matrix in the plan view.

Liquid crystal display

A counter substrate for liquid crystal display includes a transparent substrate, a black matrix, and stripe transparent electrodes. The black matrix divides a plane surface of the transparent substrate into pixel or sub-pixel unit to form a light-shielded area and openings above the plane surface. The stripe transparent electrodes are formed into the pixel unit or the sub-pixel unit above the plane surface. The black matrix includes a frame pattern including two sides facing each other in parallel in the pixel or the sub-pixel unit, and a linear central pattern which is parallel to the two sides of the frame pattern and is formed at a midsection of the pixel or the sub-pixel unit. The transparent electrodes are each parallel to the two sides of the frame pattern and the central pattern and are located symmetrically to the central pattern.

Counter substrate for liquid crystal display and liquid crystal display device

A method of a color filter substrate for a semitransmissive type liquid crystal display device, including: forming a photosensitive coloring composition layer containing a photo-polymerizable monomer, a resinous binder, a polymerization initiator, a coloring agent and a solvent on a surface of a transparent substrate, the surface being partitioned into a large number of pixel regions; exposing the photosensitive coloring composition layer to light; and developing the photosensitive coloring composition layer to form a transmissive portion and a reflective portion, the transmissive portion being assigned to colorize a transmitted light from a light source arranged on a rear surface side of a liquid crystal display device, the reflective portion being assigned to colorize a reflected light to be derived from reflection of an external light entering from the observer's side and having a through-hole with a diameter of 10 &#x3bc;m or less.

Method of manufacturing color filter substrate for semitransmissive type liquid crystal display device

A liquid crystal display device includes an array substrate and a counter substrate that face each other with a liquid crystal layer therebetween. The array substrate includes a first electrode, a second electrode, and an alignment sustaining layer. The first electrode has a comb-teeth shape. The second electrode has a comb-teeth shape, faces the first electrode, and includes a protruding portion protruding from the first electrode in a direction where comb teeth are arranged. The alignment sustaining layer is formed above a surface of the array substrate being in contact with the liquid crystal layer and gives liquid crystals a pre-tilt to a direction in which the second electrode protrudes from the first electrode, in a direction in which the comb teeth are arranged.

Liquid crystal display device and manufacturing method

Disclosed is a liquid crystal display device including a liquid crystal cell provided with a color filter, a pair of polarizing plates arranged on both outside surfaces of the liquid crystal cell, and an optical compensation layer disposed inside of each polarizing plate, wherein, when a chromaticity (u, v) represented in CIE1960 color system is measured in a black state of the liquid crystal display device, a color difference &#x394;uv given by equation (1) described below is 0.02 or less in an range of 0&#x3c;&#x3b8;&#x2266;60:&#x394;(&#x22a5;)&#x2212;(&#x3b8;)}(&#x22a5;)&#x2212;(&#x3b8;)}]&#x2003;&#x2003;(1)wherein (u(&#x22a5;), v(&#x22a5;)) is chromaticity as viewed from a vertical direction and (u(&#x3b8;), v(&#x3b8;)) is chromaticity as viewed from a direction inclined at an angle of &#x3b8; degrees with a direction of a normal line of a display surface.

Color filter and liquid crystal display device

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

Disclosed a color filter for a liquid crystal display device, which exhibits a color filter contrast of 9000 or more and includes a transparent substrate, and a plurality of color layers exhibiting different color from each other and formed on the transparent substrate, wherein each of the color layers is a cured film of a color resin composition containing a polymer composition obtained through a copolymerization of styrene and an unsaturated carboxylic acid-containing monomer, a content of the styrene in the polymer composition being confined to a range of not less than 75 mol. % and less than 95 mol. %, and a retardation in a thickness direction 'Rth' of each of these color layers is confined within a range of 0 nm to &#x2212;10 nm.

Color filter for liquid crystal display device and liquid crystal display device

A color filter and a liquid crystal display device with the color filter that includes a substrate; and a color layer formed on the substrate and constituting color pixels of a plurality of colors, wherein the color layer is formed through a curing of a color composition comprising at least acrylic resin and a coloring agent, wherein the acrylic resin contains a copolymer formed of a first vinyl monomer having a benzyl group and a second vinyl monomer having a carboxyl group, the first vinyl monomer having a function of regulating a retardation of a color layer, the copolymer having a weight average molecular weight of 3000 to 11000 and an acid value of solid matter falling within the range of 30 to 85.

Color composition for color filter, color filter using the composition and liquid crystal display device

Disclosed is a color composition for a color filter, which includes at least acrylic resin and a coloring agent. The acrylic resin contains a copolymer formed of a first vinyl monomer having a benzyl group and a second vinyl monomer having a carboxyl group, the copolymer having a weight average molecular weight of 3,000 to 11,000, and an acid value of solid matter of the copolymer being confined to 30 to 85.

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 color filter includes red, green and blue filter segments and is adapted to be used in a liquid crystal display device using, as a light source, a white LED having specified spectral properties. The red filter segment has a 50% transmittance wavelength within a range of 595 to 610 nm and a transmittance of 85% or more at a wavelength of 630 nm. The blue filter segment has a maximum transmittance wavelength of 455 nm or less and a transmittance of 55% or more at a wavelength of 450 nm. A thickness of each of the red, green and blue filter segments is 3.0 &#x3bc;m or less. A liquid crystal display device including this color filter and the white LED is also disclosed.

A color filter comprising a substrate, a red pixel, green pixel and blue pixel, each being disposed on the substrate, wherein a perpendicular optical retardation Rof the red pixel, a perpendicular optical retardation Gof the green pixel, and a perpendicular optical retardation Bof the blue pixel satisfy the following formulas (1) and (2):|()|&#x2212;|()|&#x2267;0&#x2003;&#x2003;(1)|()|&#x2212;|()|&#x2267;0&#x2003;&#x2003;(2)wherein R, Gand Brepresent, respectively, a product of a thickness [nm] of a pixel and a value obtained by subtracting a value of thickness-wise refractive index from an average value of an in-plane refractive index of each of these pixels.

Color filter with perpendicular optical retardation and liquid crystal display device

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.

Growing community of inventors

Tokyo, Japan

Koichi Minato