Hitachi, Ltd.

Other

Hitachi Displays, Ltd.

Hitachi Device Engineering Co., Ltd.

Kasei Optonix, Ltd.

Hitaci, Ltd.

Masahiro Nishizawa

Norikazu Uchiyama

Yoshifumi Tomita

Kiyoshi Miura

Toshio Tojo

Saburo Nonogaki

Hajime Morishita

Hiroshi Yokomizo

Tomoji Oishi

Osamu Sasaya

Nobuaki Hayashi

Maki Taniguchi

Shoichi Uchino

Yoshiyuki Odaka

Toshimasa Ishigaki

Noriharu Matsudate

Takehiko Ueyama

Masaharu Kumada

Takashi Fujimura

Toshikatsu Manabe

Fumio Takahashi

Satoshi Muto

Ken Hashimoto

Daigoro Kamoto

Ken Takahashi

Akira Kato

Shinichi Kato

Takao Ishikawa

Yutaka Misawa

Eiichi Yamazaki

Michiaki Hashimoto

Hidetsugu Matsukiyo

Kojiro Okude

Kenji Tochigi

Iwao Ogura

Sachiko Maekawa

Masato Ito

Yuko Matsumoto

Hiroshi Yoshioka

Masaaki Okunaka

Nobuhiko Hosotani

Teruki Suzuki

Tetsuo Suzuki

Susumu Ohmatoi

Sachiko Okuzaki

Katsuyu Takahashi

Tomoji Ohishi

Hiromi Matsuda

Yoshifumi Tomito

Hiromitu Nakai

Maki Ito

The present invention provides a transflective liquid crystal display device which includes diffusion reflective electrodes suitable for a display of high definition. Into an organic resin film material PET which is formed by mixing NQD as a photosensitive agent in an acrylic resin having a specific gravity of 1.05 and a refractive index of 1.50, spherical particles PTC made of acrylic modified polystyrene which has a specific gravity of 1.00, a refractive index of 1.50 and a particle size of 1.6 &#x3bc;m are mixed at a rate of 3:1 so as to form an organic insulation film material in which a total solid content is adjusted to 30% and viscosity is adjusted 20 mPa&#xb7;s. The organic insulation film material is applied and is dried to form an organic insulation film. A portion of the organic insulation film which is to be arranged below a diffusion reflective electrode is exposed using an exposure mask having half exposure apertures which are formed of a large number of slits and the organic insulation film is hardened. Aluminum is sputtered to the organic insulation film and is subject to photolithography etching treatment thus forming the diffusion reflective electrodes MT in a reflective region. A reflective region of the diffusion reflective electrode MT has an uneven surface shape which traces uneven surface shapes of the spherical particles PTC mixed into the organic insulation film PF arranged below the diffusion reflective electrodes MT.

Liquid crystal display device having diffusion reflective electrodes and a manufacturing method thereof

According to one aspect of the present invention, it is possible to sufficiently perform the discharging of charge without lowering the light emitting efficiency of an organic EL device and hence, the device can exhibit the light emitting efficiency higher than a conventional organic EL device and, at the same time, can prevent the degradation of the device. As an organic EL device to which the present invention is applied, on a glass transparent substrate, a transparent electrode, a hole injection layer and a hole transport layer which function as a hole transport function layer, a light emitting layer, an electron transport function layer, and a metal electrode are formed sequentially, and a drive power sources are connected to the transparent electrode and the metal electrode. Further, from the drive power source, as an applying voltage, a voltage which is obtained by overlapping any one of a sine wave, a pulse wave, a triangle wave and a sawtooth wave having two cycles or more to a drive signal or a voltage which is obtained by overlapping a sine wave having two cycles or more to the drive signal is supplied.

Method of driving organic EL device and display device

The present invention realizes the two-layered resist structure for obtaining a half exposure pattern of high sensitivity and high accuracy and a manufacturing method of a display device which includes thin film transistors which are formed using the two-layered resist. The resist is constituted of five layers, that is, a base film, a cushion layer, an upper-layer resist, a lower-layer resist and a cover film. Thicknesses of these structural members are set such that base film has a thickness of 50 to 100 &#x3bc;m, the cushion layer has a thickness of 10 to 30 &#x3bc;m, the upper-layer resist has a thickness of 0.5 to 1.0 &#x3bc;m, the lower-layer resist has a thickness of 0.5 to 1.0 &#x3bc;m, and the cover film has a thickness of 10 to 30 &#x3bc;m.

Manufacturing method of a display device using a two-layered resist

A display device includes an optical region containing a plurality of pigment grains. Each of the plurality of pigment grains formed by a plurality of pigment molecules encapsulated in an inorganic material, and each of the plurality of pigment grains has a grain size not greater than 70 nm.

Display device

In a display device comprising an optical region containing a plurality of pigment grains utilized for wavelength selection, anti-reflection, improvement of the light emitting performance and the like, dyestuff molecules utilized for forming the pigment grains to be dissolved in a solvent in which the dyestuff molecules are insoluble originally are chemically modified, and then the solubility of the modified dyestuff molecules in the solvent is reduced by energy transfer thereto to aggregate the dyestuff molecules, so that grain sizes of pigment grains are suitably controlled for the optical region in accordance with its use.

A high definition display apparatus having a wavelength selective absorption effect and an anti-static and anti-reflection effect is provided by thin films having a low resistance and a high refractive index. The high definition display apparatus has an anti-static and anti-reflection film composed of laminated oxide or metallic thin films, wherein at least three layers of oxide or metallic films having different reflectance from each other are laminated onto the front surf ace of the display apparatus, and the laminated films are composed such that an absorbing film containing coloring material is arranged under a high reflectance film as seen from the outer surface of the laminated films.

Display apparatus with a multi-layer absorption, conduction and protection film

A display device includes a first substrate, a second substrate disposed to face the first substrate, plural pixels disposed in a display area on an inner surface of the first substrate, a rubber member disposed between the first and second substrates to surround the display area, and sealing the display area from an ambient atmosphere, and an adhesive layer sealing together the first and second substrates along peripheries thereof. The adhesive layer is derived from a sol-gel solution.

Display device having an improved envelope for containing pixels therein

A cathode ray tube includes a film which is formed on an outer surface of a panel portion. The film is comprised of a first particles which become transparent due to the oxidation and a second particles which are chemically and physically stable and have the light absorbing ability and the conductivity. A number of the transparent first particles is gradually increased toward a peripheral portion from the center portion of the panel portion.

Color cathode ray tube and method of manufacturing thereof

Cathode ray tube having a pigment on a panel front face

A color cathode ray tube of the present invention includes an evacuated envelop that is structured from a panel having a phosphor screen on its inner surface, a neck portion containing therein an electron gun assembly, and a cone-shaped section called the funnel for integrally coupling the panel and the neck together, wherein when the main scanning direction of a display screen formed of the panel is defined as an X direction whereas a direction at right angles to the main scan direction is as a Y-direction, an equivalent radius of curvature R of an outer surface of the panel in the X direction is at least 2.6 times greater than an equivalent curvature radius R of the inner surface while forming on the inner panel surface an inside light absorption layer that is comprised of pigments as its principal component.

Flat face type color cathode ray tube having panel with curved inner surface

A panel has a flat external surface and has a curvature on an inner surface thereof. A coating having light absorption characteristics is formed on the external surface of the panel. To the top of the coating, a film which has light absorbing characteristics and contains an adhesive is adhered. The light absorption by the coating is large at the central portion of the panel and is small at the peripheral portion of the panel. The light absorption characteristics of the film is approximately uniform on the entire surface of the panel. Due to such a constitution, a color picture tube having a flat external surface, the least brightness difference and an excellent contrast can be realized.

Color picture tube

A color cathode-ray tube providing a nonglare effect which can be regenerated without degradation of its nonglare function and which can be inexpensively formed. A light scattering film composed of metal containing compound micro-particles having a high index of refraction and a particle size of 0.1 &mgr;m to 2 &mgr;m is formed in contact with the internal surface of a faceplate of the color cathode-ray tube, and a black matrix having a multiplicity of holes is formed on the light scattering film. A red phosphor layer, a green phosphor layer and a blue phosphor-layer are formed in the holes of the black matrix on the light scattering film in such a manner that the phosphor layers of red, green and blue are disposed cyclically in that order. External light incident on the faceplate is partly reflected by the external surface of the faceplate, and the remainder of the external light passes through the faceplate and is made incident on the light scattering film. The external light is scattered by the metal containing compound micro-particles having a high index of refraction, so that no substantial light components of the external light again penetrate into the face plate thereby providing a nonglare effect.

Color cathode-ray tube having nonglare means on internal surface of faceplate

In a color cathode ray tube having a vacuum vessel that comprises a panel, a neck for housing an electron gun therein, and a funnel for connecting the panel and the neck, in which the inner surface of the panel glass is coated with a phosphor layer in different colors to give a display screen; the panel glass contains ions capable of selectively absorbing light within the range of visible rays, and its outer surface is coated with an electric conductive surface film.

Color cathode ray tube with panel glass having a different light absorption characteristic from that of at least one outer surface layer provided thereon

A cathode ray tube with a vacuum enclosure, including a glass panel having an inner face coated with a phosphor film to form a screen, a neck portion housing an electron gun, and a funnel portion connecting the glass panel and the neck portion. A high refractive index film made of electrically conductive metal oxide or metal (e.g., precious metal) particles and having a refractive index of 1.6 to 2.2, and a low refractive index film having a refractive index of 1.3 to 1.58, are formed on the outer face of the glass panel. The high refractive index film is sandwiched between the outer face of the glass panel and the low refractive index film and an average roughness of an outer surface of said low refractive index film is less than an average roughness of an unevenness of an interface between the high refractive index film and the low refractive index film.

Cathode ray tube having high and low refractive index films on the outer face of the glass panel thereof

There is provided a field leak preventing coating film of a cahtode ray tube, comprising a vacuum case comprising the panel section, a neck section and a funnel section connecting the panel section and the neck section; a fluorescent film applied on an inner face of the panel section; and an electron gun, stored in the neck section, for emitting three electron beams toward the fluorescent film, by adhering a double coating film composed of a conductive first layer mainly composed of particles of one or more kinds of metal among noble metal elements of gold (Au), silver (Ag) or platinum (Pt) and a second layer mainly composed of silicon dioxide (SiO ) or magnesium fluoride (MgF ) on an outer face of a faceplate of a panel section of the color cathode ray tube.

Color cathode ray tube equipped with field leak preventing coating

Growing community of inventors

Mobara, Japan

Masahiro Nishizawa