Hitachi, Ltd.

Echo Co. Ltd.

Other

Hitachi Device Engineering Co., Ltd.

Akiya Izumi

Toshio Nakano

Iwao Takemoto

Akira Sasano

Ken Tsutsui

Michiaki Hashimoto

Atsumu Iguchi

Hiroichi Sokei

Masayuki Takahashi

Masahiko Kadowaki

Kunio Niwa

Yoshio Taniguchi

Tadao Kaneko

Takamasa Naito

Hiroyoshi Kojima

Masaaki Yokoyama

Junichirou Nakajima

Hideaki Abe

Shigemi Hirasawa

Yoshifumi Tomita

Norio Koike

Haruo Matsumaru

Hironobu Abe

Tatsuo Hamamoto

Takaaki Unnai

Misturu Hinosugi

Tadeo Kaneko

Norimasa Akiyama

Junichiro Nakajima

Masao Yoshioka

Yoshinori Niwata

Tunehisa Horiuchi

Masahiko Kodowaki

Disclosed are a liquid crystal display device capable of obtaining preferable display images, whose manufacturing cost is low, and which does not deteriorate the environment at the time of fabrication and a method for fabricating the same. According to the invention, there is provided a liquid crystal display device comprising: a first substrate on which a black matrix, a color filter, and a counter electrode are formed; a second substrate on which a plurality of gate signal lines and a plurality of source signal lines which are disposed so as to cross each other via a gate insulating film, thin film transistors disposed in intersecting points of the gate signal lines and the source signal lines, and pixel electrodes in a matrix disposed in the areas surrounded by the gate signal lines and the source signal lines are formed; and a liquid crystal layer provided between the first substrate and the second substrate, wherein the black matrix is formed by a black resin optical shielding layer and a blue filter layer. In a method for fabricating the liquid crystal display device according to the invention, the black matrix part formed by the blue filter layer is constructed by a photoresist film in which a blue pigment is dispersed and the photoresist film is patterned by using back side exposure.

Liquid crystal display with black matrix formed by a black resin optical shielding layer and a blue filter layer

A video camera unit is separated into a holder for receiving lenses and a base on which a solid-state image pickup chip is mounted. The holder and the base are assembled together with the distance between them made variable so that it is possible to adjust the back focus of the lens. Further, a video camera unit has a holder which is separated into a first holder for receiving lenses and a second holder for receiving a solid-state image pickup device so that both holders can be assembled together with the distance between them made variable. Therefore, it is also possible to adjust the back focus of the lens.

Semiconductor device and video camera unit having the same and method

Video camera unit having an airtight mounting arrangement for an image

An imaging assembly, which is particularly useful for a video camera unit, comprising a set of lenses, some of which have a non-refractive surface, and an image sensor. A holder is provided for holding both the set of lenses and the image sensor to be aligned with one another. Circuitry is also provided so that the sensitivity of the image sensor can be electrically varied.

Semiconductor device and video camera unit using it and their

A packaging structure is provided which is especially useful for solid-state imaging devices and other semiconductor devices. An Al film is selectively formed on inner lead portions and portions of positioning reference plates located within a ceramic packaging body. On the other hand, the outer lead portions that are exposed outside the packaging body are coated with Sn plating layer. Particular care is taken not to locate the Sn plating layer over the Al film. Contamination faults due to Sn swelling and stripping are prevented, while bonding strength of the Al clad inner lead portions with Al internal fine wires and with fit glass joining the ceramic packaging body together is kept high.

Packaging structure for a solid-state imaging device with selectively

Disclosed is a method of producing color filters, which comprises forming a layer of an organic polymeric material having a predetermined light-sensitive characteristic on a substrate, exposing this layer to a predetermined pattern, developing the exposed layer to form a filter base and dyeing the filter base, wherein after the development of the exposed layer, the layer is wetted with a dehydrating solution to remove water from the filter base. By this dehydrating treatment, the filter base can be processed with very high precision.

Method of producing color filters using dehydrating solution

A color solid-state imager comprising a semiconductor body which has a photoelectric conversion function and which includes at least photosensitive elements and switching elements, and predetermined color filters which are formed on the body; characterized in that a light absorbing layer is disposed at least over a vicinity of an output terminal of each switching element. The contours of the color filters can be accurately formed, and unnecessary light can be intercepted to stabilize the electrical characteristics of the solid-state imager.

Color solid-state imager

According to a solid-state imager of this invention, in case where a plurality of color filters are disposed on a semiconductor body for the solid-state imager including a plurality of photosensitive regions and where the color filter of a third color is constructed by the overlapping between filter members of a first color and a second color, that one of the filter members which has a spectral transmittance substantially transmitting light for exposure for use in forming the filter members is arranged as a lower layer closer to a substrate of the semiconductor body. Even when the filter members are formed by the exposure process, a solid-state imager having good characteristics can be manufactured.

Solid-state color imager and method of manufacturing the same

In forming a fluorescent screen for a cathode ray tube, an undercoat layer is first coated on the inner face of the panel. The undercoat layer contains at least polystyrene particles with a film weight of 0.002 to 0.04 mg/cm.sup.2. Coated on the undercoat layer is phosphor slurry.

Method for forming a fluorescent screen

Surfaces of a perforated mask made of iron are allowed to contact with an acidic aqueous solution of antimony trichloride, e.g., a hydrochloric acid solution to form a thin film of metallic antimony on said surfaces. A protective coating of a phosphate is allowed to be deposited onto said thin film. Thereafter, said surfaces is heated in an oxygen atmosphere to produce a grayish black coating having an excellent thermal emission power. The perforated mask thus treated has no permanent deformation like wrinkles produced at a perforated sheet member and is uniform in color.

Process for treating surfaces of a perforated mask

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Mobara, Japan

Akiya Izumi