Sharp Kabushiki Kaisha Corporation

Mitsubishi Denki Kabushiki Kaisha

Toshiyuki Yoshimizu

Hiroshi Ohnishi

Masahiro Kishida

Toshiaki Fukuyama

Yoshihisa Ishimoto

Yohsuke Fujikawa

Takehiro Murao

Keiko Kishimoto

Yumi Yoshimura

Naru Usukura

Takeshi Seike

Seishi Kosegawa

Masayuki Hata

Toshiaki Nakagawa

Yoshifumi Ota

Tadashi Nemoto

Masakazu Matoba

Shuichi Kozaki

Satoshi Shibata

Hiroshi Kuwagaki

Takuma Tomotoshi

Kyouhei Isohata

Masakazu Wada

Masahiro Nakano

Toshimichi Katsube

Kaori Aoyama

Eiichi Urakubo

Yumi Baba

A light-receiving deviceincludes a plurality of light-receiving unitsA,B, andC, in which, in the element substrateA constituting the light-receiving unitA, the rear surface of a second terminal forming areaAc, upon which a connection pad PAc is formed, is bonded to the front surface of a cover glassB covering a plurality of light-receiving elementsconstituting the light-receiving unitB, and in the element substrateC constituting the light-receiving unitC, the rear surface of a first terminal forming areaCb, upon which a connection pad PCb is formed, is bonded with the front surface of the cover glassB of the light-receiving unitB. As a result, an increase in manufacturing cost and a decrease in yield are mitigated so that it is possible to provide a light-receiving device upon which light-receiving elements are disposed continuously over a long distance at a high density, as well as an optical touch panel device provided with the same.

Optical receiving device and optical touch panel device provided with same

The amount of the light emitted from a light-emitting diode is changed from that of the initial condition to increase, among the light sensors that are not shielded from the light emitted from the light-emitting diode, the number of the light sensors at which the difference (C&#x2212;D) between the light detection amount at the light sensor when the light-emitting diode is ON and the light detection amount at the light sensor when the light-emitting diode is OFF is equal to the difference (A&#x2212;B) between the light detection amount at the light sensor in the initial condition when the light-emitting diode was ON and the light detection amount at the light sensors in the initial condition when the light-emitting diode was OFF with no detection object present. As a result, regardless of the presence or absence of the detection object, the coordinate sensor and the display device disclosed can establish a threshold for determining the presence or absence of the detection object, and can also determine the coordinates of the detection object in a stable manner regardless of changes in the ambient environmental light or in the ambient environmental temperature, or fluctuations in the amount of light emitted from the light-emitting element disposed in the coordinate sensor or the change in the sensitivity of the light-receiving elements.

Coordinate sensor and display device

A coordinate sensor of the present invention includes light emitting diodes () and line sensors () each including light receiving elements (), and further includes, between the light emitting diodes () and the light receiving elements (), wavelength selective reflection mirrors () for allowing light emitted from the light emitting diodes () to be selectively incident to the light receiving elements ().

A liquid crystal display device including a plurality of pixels arranged in a matrix along a first direction and a second direction which are perpendicular to each other a TFT substrate, a counter substrate, a liquid crystal layer, a plurality of microlenses, and a backlight provided on a side of the plurality of microlenses which is opposite to the TFT substrate. The plurality of microlenses includes a plurality of lenticular lenses extending in the first direction, the plurality of lenticular lenses being arranged side by side along the second direction.

Liquid crystal display device

A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction. A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d&#x3e;p.((2n)2&#x2212;1)&#xbd; where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.

There is provided a liquid crystal display panel with microlenses in which deformation, peeling, and the like of an optical film are not likely to occur and which has a good displaying quality. A liquid crystal display panel according to the present invention includes: a microlens array provided on a light-incident side of a liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to surround the microlens array; and an optical film attached to the liquid crystal display panel via the support. A gap is formed between the microlens array and the optical film; at least one vent hole connecting a space outside the support and the gap is formed in the support; and, when seen perpendicularly with respect to the plane of the liquid crystal display panel, the vent hole extends in a bending manner or the vent hole extends in an oblique direction with respect to an inner face of the support.

Liquid crystal display panel provided with microlens array, method for manufacturing the liquid crystal display panel, and liquid crystal display device

The display panel of this invention includes a pair of glass substrates each with a thickness not less than 0.15 mm and not more than 0.3 mm and a sealing material for bonding the pair of glass substrates to each other. A resin layer is formed on the outer face of at least one of the pair of glass substrates.

Display panel and method for fabricating the same

The liquid crystal display apparatus of this invention includes a pair of substrates facing each other and a liquid crystal layer interposed between the pair of substrates. At least one of the pair of substrates having on a surface thereof: pixel electrodes arranged in rows and columns; a plurality of signal lines; and a plurality of nonlinear switching elements for connecting each of the plurality of signal lines to a corresponding column of pixel electrodes. Each switching element has a lower electrode, an insulating film formed on the lower electrode, and an upper electrode formed on the insulating electrode, the lower electrode being a branch of the corresponding signal line, wherein the lower electrode has a first portion with a width larger than a width of a second portion overlapping the insulating film and the upper electrode, the first portion being located farther from the corresponding signal line than the second portion.

Liquid crystal display with non-linear switching elements having

The liquid crystal display device of the invention includes a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates. A plurality of pixel electrodes is arranged in matrix on the surface facing the liquid crystal layer of at least one of the pair of substrates. A plurality of signal lines and a plurality of two-terminal nonlinear elements are formed. An individual one of the two-terminal nonlinear elements is connected to one of the pixel electrodes associated with the individual two-terminal nonlinear element and one of the signal lines associated with the individual two-terminal nonlinear element. The two-terminal nonlinear element includes: a lower electrode connected to the associated signal line, an insulator formed so as to cover the lower electrode, and an upper electrode connected to the associated pixel electrode. The insulator includes a first insulating film exhibiting non-linearity, a second insulating film formed so as to cover etching edges of the lower electrode, and a slit electrically connecting the upper electrode to the first insulating film. The size of the two-terminal nonlinear element is determined by an opening width of the slit of the second insulating film and a line width of the upper electrode.

LCD device having a switching element with reduced size and capacitance

A two-terminal nonlinear element for a liquid crystal display device, which is connected to a corresponding one of pixel electrodes of the liquid crystal display device, includes: a lower electrode connected to a signal line formed on one substrate of the liquid crystal display device; an insulating film formed on a surface of the lower electrode; and an upper electrode formed to face the lower electrode via the insulating film and connected to the corresponding one of the pixel electrodes. The insulating film has a first portion interposed between the upper electrode and the lower electrode and a second portion surrounding the upper electrode and having a thickness larger than that of the first portion, and the first and second portions of the insulating film are made of a same metal oxide produced by anodization.

Two-terminal nonlinear element and method for fabricating the same

A reflective type liquid crystal display apparatus includes: a first transmissive substrate; a second substrate disposed to face the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate, the liquid crystal layer including a plurality of pixels; a plurality of reflective pixel electrodes, provided on the second substrate, for applying driving voltages to the pixels; a plurality of driving devices, provided on the second substrate, for driving the reflective pixel electrodes, respectively; and a plurality of protective devices disposed in the vicinity of the driving devices on the second substrate. The driving devices and the protective devices are disposed below the reflective pixel electrodes. Each of the driving devices and the protective devices includes an insulator, electric breakdown in each of the protective devices occurs prior to electric breakdown in a corresponding one of the driving devices, thereby reducing the potential difference of static electricity applied to the corresponding one of the driving devices.

Reflective type liquid crystal display apparatus having ESD protecting

When an anodized film is to be formed, one formation-voltage input point is used. An interconnecting ring for anodization is provided between the input point and a pattern to be anodized. The interconnecting ring is in contact with and encloses the pattern. Another interconnecting ring to which the formation-voltage input point is connected is provided around the interconnecting ring. In addition, two junction points are provided at vertically symmetric positions with respect to the pattern. The junction points are connected to the interconnecting ring. The junction points are connected to upper connection terminals and lower connection terminals of the pattern by respective thin-line groups including a plurality of thin lines. The formation voltages at respective input points at the upper connection terminals and the lower connection terminals of the pattern are made equal to each other.

Method for fabricating a switching device by anodization

A two-terminal nonlinear device according to the present invention includes a lower electrode of a thin Ta film doped with nitrogen which is formed on a substrate, an anodized oxide film formed by anodizing a surface of the lower electrode, and an upper electrode of a metal thin film which is formed on the anodized oxide film, wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.

Method of making two-terminal nonlinear device and liquid crystal

An LCD device includes a first substrate including a plurality of pixel electrodes arranged in a matrix, a plurality of signal wires formed of metal for supplying the plurality of pixel electrodes with an electric charge, and a plurality of two-terminal nonlinear devices for switching connection between the pixel electrodes and the signal wires into one of a conductive state and a non-conductive state; a second substrate located opposite to the first substrate and including a plurality of scanning electrodes arranged parallel to each other and crossing the signal wires; and a liquid crystal layer sandwiched between the first and the second substrates. Each two-terminal nonlinear device includes a lower electrode which is a part of the corresponding signal wire; a first insulator layer located on the lower electrode provided as a result of anodic oxidation of a part of the lower electrode and having a thickness of no greater than 1,000 angstroms; a second insulator layer covering the first insulator layer and having at least one opening, the second insulator layer being formed of a different material from the first insulator layer; and an upper electrode located on the second insulator layer and connected to the first insulator layer through the opening. Each signal wire has a top surface and a pair of side surfaces interposing the top surface. The upper electrode has an end extending diagonally with respect to the direction in which the corresponding signal wire extends on at least one of the side surfaces of the corresponding signal wire.

Growing community of inventors

Kyoto, Japan

Toshiyuki Yoshimizu