Seiko Instruments Inc

Kabushiki Kaisha Daini Seikosha

Seiko Instruments & Electronics Ltd.

Other

Sumitomo Chemical Company, Limited

Seiko Instruments R & D Center Inc.

Shunichi Motte

Takakazu Fukuchi

Shuhei Yamamoto

Masafumi Hoshino

Teruo Ebihara

Naotoshi Shino

Osamu Yamazaki

Shigeru Senbonmatsu

Hiroshi Sakama

Kunihiro Takahashi

Naoyuki Echigo

Tsuneo Kuwabara

Kaori Taniguchi

Kaori Takano

Hideo Tanaka

Masanori Fujita

Tsuneo Yamazaki

Mitsuru Suginoya

Hitoshi Kamamori

Hiroshi Sakuma

Masafumi Shimbo

Toshihiko Harajiri

Yoshikatsu Okada

Mitsuya Suzuki

Shigeru Sembonmatsu

Akiko Sakurai

Masafumi Shinbo

A reflective type liquid crystal display device has a first transparent substrate, a second transparent substrate, and a light scattering liquid crystal layer disposed between the first and second transparent substrates. A solar cell is disposed on the second transparent substrate. A portion of the solar cell comprises an active element for driving the light scattering liquid crystal layer.

Reflective type LCD having a solar cell formed of same material and same surface as an active element

A reflection type liquid crystal display device according to the present invention is constructed to include: a light modulation layer having a light scattering state changed when a voltage is applied between electrode faces; at least one kind of color separation layer arranged at the back of the liquid crystal; and a reflection layer arranged at the back of the color separation layer. The light modulation layer is a polymer network type polymer scattered liquid crystal layer or a phase conversion type liquid crystal layer, and the color separation mirror is a cholesteric liquid crystal polymer layer or a dielectric multi-layered thin film characterized to reflect a light within a predetermined wavelength range in the visible light region selectively. A reflection preventing layer and an ultraviolet ray cut-off layer are further arranged on the surfaces of the electrode faces.

Reflection type liquid crystal display device

A reflective liquid crystal display device comprises a transparent first substrate having formed thereon a transparent electrode, a first filter having a first color, and a second filte having a second color. A second substrate is disposed opposite and spaced-apart from the first substrate. A reflection layer is disposed on the second substrate. A polymer dispersed liquid crystal layer is disposed between the transparent electrode and the reflection layer and is formed by exposure to an ultraviolet ray in a preselected wavelength range. A ratio of a transmissivity of the first filter for the ultraviolet ray to a transmissivity of the second filter for the ultraviolet ray is 3.0 or less.

Reflective liquid crystal display device having light scattering liquid crystal display element, and method for manufacturing reflective liquid crystal display device

A reflection type liquid crystal display device comprises a pair of substrates having electrodes, a light scattering type liquid crystal layer interposed between the substrates, a reflection layer disposed over a rear surface of the light scattering type liquid crystal layer, and a light absorbing layer disposed over a rear surface of the reflection layer for absorbing a light passed through the reflection layer. The light scattering type liquid crystal layer changes into a scattering state or a transparent state in accordance with a change in a voltage level between the electrodes, and transmits 60% or more of incident light irrespective of the change in the voltage level between the electrodes. The reflection layer has a reflectivity within a range of 10 to 50% for reflecting a forward scattered light passed through the light scattering type liquid crystal layer.

Reflection type liquid crystal display device for converting incident

This invention allows the high image quality multicolor liquid crystal display to be manufactured by a simple method in which color filters are applied by patterning an insulating resist on a plurality of electrodes formed on a substrate, by forming color filters one after another by way of electro- deposition and by patterning a light shielding substance at gaps of the color filters by utilizing the color filter as masks.

Manufacturing method of multicolor liquid crystal display

A thin film transistor having a shading layer for reducing optical leakage current. The shading layer is made essentially of opaque organic material.

Thin film transistor

A method for manufacturing a non-linear resistive element array on a substrate, comprising: depositing a first conductive layer on the substrate and selectively forming the layer in a desired pattern; depositing a non-linear resistive layer on the first conductive layer; depositing a second conductive layer on the non-linear resistive layer; forming the second conductive layer in a desired pattern by etching process using a patterned resist layer as a mask; and forming the non-linear resistive layer in a desired pattern using the resist layer as a mask.

Method of manufacturing non-linear resistive element array

Insulated-gate-field-effect transistors are disposed on an insulating substrate as a matrix. Each gate electrode of the transistors is covered with each gate insulating film and semiconductor film acting as a channel of the transistors, respectively.

Substrate for active matrix display

A thin film transistor array for a liquid crystal display device is produced by simultaneously forming gate electrodes and picture element electrodes; forming islands of a layered structure comprised of a gate insulating film, a thin semiconductor film and a light shielding film in a single masking step; and forming the gate, source and drain wiring metals in contact windows by the 'lift-off' technique after using a resist film for opening the contact windows. Only three masking steps are required thereby enabling an increase in production yield and a lower production cost as compared to conventional techniques which typically require seven masking steps.

Method of producing liquid-crystal display device

An AT-cut quartz resonator is disclosed, wherein the length l, the width w and the thickness t of the quartz crystal plate are respectively chosen in the directions of an electrical axis (X-axis), an optical axis (Z'-axis) and a mechanical axis (Y'-axis), the width-to-thickness ratio w/t is chosen in the range of 2.0 to 2.8 and the length-to-thickness ratio l/t is chosen less than 25. Consequently, an AT-cut quartz resonator of miniature size having high Q-values of the major mode and excellent frequency-temperature characteristics of the vibration frequency is realized.

AT-Cut quartz resonator, with w/t=2.0 to 2.8, l/t&lt;25

A rectangular AT-cut quartz resonator comprising a quartz crystal plate rotated about 35.degree. around the X-axis, has dimensional ratios w/t and l/t respectively in the range of 3.1 to 3.7 and 14.5 to 16.2, where the length l, width w and thickness t are respectively along the X-axis, Z-axis, and Y-axis.

Rectangular AT-cut quartz resonator

Growing community of inventors

Chiba, Japan

Shunichi Motte