Toyo Ink Manufacturing Company

Toyo Ink Mfg. Co., Ltd.

Toppan Printing Co., Ltd.

Satoshi Okutsu

Toshio Enokida

Michiko Tamano

Toshikazu Onikubo

Kenichi Fujita

Koichi Minato

Mie Shimizu

Takeshi Itoi

Yukio Kodama

Ichiro Toyoda

Atsushi Nishida

Kenro Sunahara

Masashi Sawamura

Yukino Miyagawa

Tomoyuki Kadowaki

Yuji Hirasawa

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.

Color filter and liquid crystal display device

A colored composition for color filter contains a colorant carrier formed of a transparent resin, a precursor of a transparent resin or a mixture thereof, and a green colorant dispersed in the colorant carrier. The green colorant contains a first halogenated metallophthalocyanine pigment having copper as a central metal, and at least one second halogenated metallophthalocyanine pigment having, as a central metal, a metal selected from the group consisting of Mg, Al, Si, Ti, V, Mn, Fe, Co, Ni, Zn, Ge and Sn. The content of the second halogenated metallophthalocyanine pigment is within a range of 1 to 80 mol % based on a total amount of the green colorant. Also disclosed is a color filter including at least one red filter segment, at least one blue filter segment, and at least one green filter segment. At least one green filter segment is prepared from the above-mentioned colored composition.

Colored composition for color filter and color filter

A light-emitting material which serves to emit light having a high brightness and is almost free of deterioration in light emission, and an organic EL device for which the light-emitting material is adapted, the material having the formula &lsqb;1&rsqb;,

Light-emitting material for organo-electroluminescence device and for organic electroluminescence device which the material is applied

A light-emitting material of the following general formula &lsqb;1&rsqb; for an organic electroluminescence device,

Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted

A hole-injecting material for an organic EL device, having excellent hole-injecting capability and durability and having the formula &lsqb;I&rsqb;, &lsqb;II&rsqb; or &lsqb;III&rsqb; specified in claim,and an organic electroluminescence device obtained by forming either a light-emitting layer or a plurality of organic compound thin layers including the light-emitting layer between a pair of electrodes composed of a cathode and an anode, wherein at least one layer contains the above material.

Material for organoelectroluminescence device and use thereof

A hole-injecting material for an organic EL device, having excellent hole-injecting capability and durability and having the formula [I], [II] or [III] specified in claim 1, and an organic electroluminescence device obtained by forming either a light-emitting layer or a plurality of organic compound thin layers including the light-emitting layer between a pair of electrodes composed of a cathode and an anode, wherein at least one layer contains the above material.

Material for organoelectro-luminescence device and use thereof

An organic EL device which is excellent in stability in the repetitive operation and has a high light emission brightness can be obtained from a gallium complex of the general formula (1), ##STR1## wherein each of Q.sup.1 and Q.sup.2 is independently a ligand of the general formula (2); and L is a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic ring group, --OR.sup.1 in which R.sup.1 is a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic ring group, or --O--Ga--Q.sup.3 (Q.sup.4) in which Q.sup.3 and Q.sup.4 have the same meanings as those of Q.sup.1 and Q.sup.2, ##STR2## wherein A.sup.1 and A.sup.2 are substituted or unsubstituted six-membered aryl rings which are mutually fused to form a fused ring moiety.

Organoelectroluminescence device material and organoelectroluminescence

A hole-transporting material having excellent hole transportation capability and sufficient durability, used in an organic EL device and an electrophotographic photoreceptor, the hole-transporting material having the general formula specified in claim 1.

Hole-transporting material and use thereof

A material for an organic EL device, having excellent capability of injecting holes from a metal electrode and having durability, and an organic EL device which is imparted with excellent stability in the repeated use for light emission by using the above material, the material having the formula (1), (6) or (7) as specified in claim 1.

Material for organoelectroluminescence device and

A light-emitting material of the following general formula �1! for an organic electroluminescence device, ##STR1## wherein each of A.sup.1 to A.sup.4 is a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, and each of R.sup.1 to R.sup.8 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, provided that adjacent substituents may form an aryl ring.

Growing community of inventors

Tokyo, Japan

Satoshi Okutsu