Toppan Printing Co., Ltd.

Toyo Ink Mfg. Co., Ltd.

Takeshi Itoi

Koichi Minato

Mie Shimizu

Hidesato Hagiwara

Sosuke Akao

Hideyo Tanaka

Mizuhiro Tani

Satoshi Ohkuma

Takumi Saito

Masayuki Yamamoto

Atsushi Nishida

Kenro Sunahara

Yukino Miyagawa

Takashi Yamauchi

Akira Hirano

Yuki Saito

Yuji Kubo

Mamoru Ishizaki

Kazunori Yamada

Hiromitsu Ito

Yuichi Ito

Godai Fukunaga

Masashi Aimatsu

Satoshi Okutsu

Takao Minato

Yusuke Iida

Teruhiko Kai

Ichiro Toyoda

Yukiyoshi Jonoshita

Tadashi Tanoue

Toru Omura

Yifan Qian

Mayumi Ogura

Fumiko Ikegami

Noritaka Mihashi

Takashi Kanoh

Tomoyuki Kadowaki

Yoshinori Nagasaki

Mitsuhisa Hatashima

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 phase-type diffraction device includes a substrate having a front surface and a solidified liquid crystal layer formed on the front surface of the substrate and constituted by a continuous film containing at least a liquid crystal compound. The solidified liquid crystal layer is constituted by first, second and third regions arranged periodically, the third region being interposed between the first region and the second region. The first region is optically anisotropic and the second region is optically isotropic, the third region is not optically isotropic, a degree of orientation of mesogens of the liquid crystal compound being lower than that of the first region. An in-plane average refractive index nof the second region is different from an in-plane average refractive index nof the first region and an in-plane average refractive index nof the third region is between nand n.

Phase-type diffraction device, manufacturing method thereof and image pick-up apparatus

A retardation layer that includes regions causing different retardations can be manufactured easily. A retardation substrate includes a substrate and a solidified liquid crystal layer facing its main surface. The solidified liquid crystal layer includes first to third regions, and a degree of depolarization for each of the regions is less than 5.0&#xd7;10. A difference between the maximum and minimum values of the degrees of depolarization obtained for the regions is less than 2.0&#xd7;10.

Retardation substrate, method of manufacturing the same, and liquid crystal display

A color filter includes a red filter segment, a green filter segment and a blue filter segment, on a substrate, wherein when a pseudo-white LED is used, an area of a triangle defined by three chromaticity points of the red, green and blue filter segments expressed as (x, y), (x, y) and (x, y) on the x-y chromaticity diagram occupies 72% or more of an area standard triangle defined by defined by 3 points of red (0.67, 0.33), green (0.21, 0.71) and blue (0.14, 0.08), and the color filter has a color temperature of 6000K or more. Each of the red, green and blue filter segments has a thickness of 3.3 &#x3bc;m or less. A liquid crystal display device includes such color filter and the pseudo-white LED.

Color filter and liquid crystal display device

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 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 colored composition for color filter contains a pigment carrier made of a transparent resin, a precursor thereof, or a mixture thereof, an organic pigment, and a pigment-dispersing agent containing a quinoline derivative having a formula as described in the specification or an amine or metal salt. The color filter contains filter segments formed with the color composition.

Colored composition for color filter and color filter

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 colored composition contains a colorant carrier including a transparent resin, a precursor thereof, or a mixture of the transparent resin and the precursor, a colorant, and an organic liquid medium. The organic liquid medium consists of an organic solvent (a) having a boiling point at 760 mmHg of 100&#xb0; C. or higher but lower than 160&#xb0; C., and an organic solvent (b) having a boiling point at 760 mmHg of 160&#xb0; C. or higher but lower than 215&#xb0; C. The organic solvent (b) is contained in an amount of 3% to 35% by weight based on the total amount of the colored composition.

Colored composition, method of manufacturing color filter, and method of manufacturing black matrix substrate

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 photosensitive colored composition contains a resin, a monomer and a colorant. The resin is a copolymer resin of at least one compound (a) represented by general formula (I) below with at least one other compound (b) having an ethylenically unsaturated double bond: where Rrepresents H or CH, Rrepresents an alkylene group having 2 or 3 carbon atoms, Rrepresents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms which may contain a benzene ring, and n is an integer of 1 to 15.

Photosensitive colored composition and color filter

A photosensitive composition contains a photosensitive resin and a colorant. The photosensitive resin includes (A) a copolymer of (a1) at least one first polymerizable monomer containing 2 to 6 hydroxyl groups with (a2) at least one second polymerizable monomer other than the first polymerizable monomer, and (B) at least one compound (B) containing an ethylenically unsaturated double bond and a functional group capable of reacting with hydroxyl group. The compound (B) has been reacted with the copolymer (A). A color filter has at least one filter segment formed using the photosensitive composition.

Photosensitive composition and color filter

A substrate for an organic electroluminescence display element comprises a support ( ), a plurality of first electrode lines ( ) arranged apart from each other on the support ( ), and a plurality of partition walls ( ) arranged apart from each other and extending in a direction to cross the first electrode lines ( ). Each of the partition walls ( ) has eaves in an upper portion and flared side surfaces in a lower portion.

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Tokyo, Japan

Takeshi Itoi