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Mutsuko Hatano, Kokubunji JP

Mutsuko Hatano, Kokubunji JP

Patent application numberDescriptionPublished
20080290344Image Display Device And Method For Manufacturing The Same - An image display device manufactured by using a polycrystalline semiconductor film. The polycrystalline semiconductor film is composed of crystal grains with a region free from crystal grain boundaries of at least 2 μm in width and at least 3 μm in length, small crystal grain boundary groups each composed of three or more crystal grain boundaries arranged substantially in parallel to each other and with an interval of not greater than 100 μm are included in a part of the region, and the small crystal grain boundary groups are partially eliminated.11-27-2008
20080292786Method of manufacturing display device - Provided is a method of manufacturing a display device having a step of forming a resin material layer by curing a resin coated on the main surface of a glass substrate; a step of forming a display circuit configured by a plurality of lamination material layers on the main surface side of said resin material layer; and a step of generating exfoliation at the interface between said resin material layer and said glass substrate, by irradiating a ultraviolet ray from the surface on the opposite side to the surface provided with said display circuit of said glass substrate, and said resin material layer, from which said glass substrate is removed, is used as a substrate provided with said display circuit.11-27-2008
20090015760Method for manufacturing thin film transistors - A method for manufacturing a thin film transistor including a step of forming a polymer film (a) to a layer above a support substrate, a step of forming a semiconductor element above the polymer film (a), and a step of separating the support substrate from the polymer film (a) formed with the semiconductor element in which the polymer film (a) has a thickness of 1 μm or more and 30 μm or less, a transmittance of 80% or higher to a visible light at a wavelength of 400 nm or more and 800 nm or less, a 3 wt % loss temperature of 300° C. or higher, and a melting point of 280° C. or higher.01-15-2009
20090040411Liquid crystal display - A liquid crystal display, having an improved application of electric field to the molecules of liquid crystal, includes a substrate and a pixel array bonded to the surface of this substrate, and the pixel array includes at least a thin-film transistor and a pixel electrode connected with this thin-film transistor, and the pixel electrode is formed in a layer higher than the thin-film transistor in relation to the substrate.02-12-2009
20090057676THIN FILM SEMICONDUCTOR DEVICE - A thin film semiconductor device is provided which includes an insulating substrate, a Si thin film formed over the insulating substrate, and a transistor with the Si thin film as a channel thereof. The Si thin film includes a polycrystal where a plurality of narrow, rectangular crystal grains are arranged. A surface of the polycrystal is flat at grain boundaries thereof. Also, an average film thickness of the boundaries of crystals of the Si thin film ranges from 90 to 100% of an intra-grain average film thickness.03-05-2009
20090101895DISPLAY DEVICE - A display device includes a pixel including: a gate line; a gate insulating film; a substrate; a data line; a pixel electrode; a semiconductor layer formed on the gate line and the gate insulating film; a protective film formed on the data line, the pixel electrode, and the semiconductor layer; and a thin film transistor. A portion of the gate line also serves as a gate electrode of the thin film transistor. A portion of the data line also serves as a drain electrode of the thin film transistor. A portion of the pixel electrode also serves as a source electrode of the thin film transistor. The semiconductor layer is formed of an oxide semiconductor layer. The oxide semiconductor layer is directly connected to the drain electrode and the source electrode, and the data line and the pixel electrode are formed of different conductive films.04-23-2009
20090261325SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A metallic oxide semiconductor device with high performance and small variations. It is a field effect transistor using a metallic oxide film for the channel, which includes a channel region and a source region and comprises a drain region with a lower oxygen content than the channel region in the metallic oxide, in which the channel region exhibits semiconductor characteristics and the oxygen content decreases with depth below the surface.10-22-2009
20090262095Electrostatic Capacitance Type Touch Panel and Screen Input Display Device Including the Same - An electrostatic capacitance type touch panel includes: a substrate; a plurality of first electrodes disposed in parallel on the substrate; an insulating film formed so as to cover the plurality of first electrodes; a plurality of second electrodes disposed in parallel to intersect the plurality of first electrodes on the insulating film; a plurality of first drawing wiring lines connected to the plurality of first electrodes to be drawn to a connection terminal; and a plurality of second drawing wiring lines connected to the plurality of second electrodes to be drawn to the connection terminal. The plurality of first drawing wiring lines have different lengths, larger widths as the lengths are shorter, and larger intervals between adjacent two of the plurality of first drawing wiring lines as the lengths are longer.10-22-2009
20090267047SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF - The present invention can promote the large capacity, high performance and high reliability of a semiconductor memory device by realizing high-performance of both the semiconductor device and a memory device when the semiconductor memory device is manufactured by stacking a memory device such as ReRAM or the phase change memory and the semiconductor device. After a polysilicon forming a selection device is deposited in an amorphous state at a low temperature, the crystallization of the polysilicon and the activation of impurities are briefly performed with heat treatment by laser annealing. When laser annealing is performed, the recording material located below the silicon subjected to the crystallization is completely covered with a metal film or with the metal film and an insulating film, thereby making it possible to suppress a temperature increase at the time of performing the annealing and to reduce the thermal load of the recording material.10-29-2009
20090269892THIN FILM SEMICONDUCTOR DEVICE, POLYCRYSTALLINE SEMICONDUCTOR THIN FILM PRODUCTION PROCESS AND PRODUCTION APPARATUS - A process for producing an image display device using a thin film semiconductor device is provided which includes forming a polycrystalline semiconductor thin film on a substrate. A substantially belt-shaped crystal is formed which is crystallized so as to grow crystal grains in a direction substantially parallel to a scanning direction of a CW laser beam by scanning the CW laser beam along the substrate, thereby irradiating the CW laser beam on portions of the polycrystalline semiconductor thin film formed onto the substrate.10-29-2009
20090273751LIQUID CRYSTAL DISPLAY DEVICE AND DIELECTRIC FILM USABLE IN THE LIQUID CRYSTAL DISPALY DEVICE - The present invention provides a liquid crystal display device with high image visibility at low power consumption and produced at low cost by using an interlayer dielectric film, which has low dielectric constant, high heat-resistant property, high optical transmissivity, high film thickness and high flattening property produced at low cost. An organic siloxane dielectric film is used as an interlayer dielectric film of the liquid crystal display device. A ratio of nitrogen content to silicon content (Ni content/Si content) in the interlayer dielectric film is controlled to 0.04 or more in the element ratio. The limiting film thickness to suppress and limit the cracking caused by the thickening of the interlayer dielectric film is set to 1.5 μm or more.11-05-2009
20100026938IMAGE DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - An image display device having a display panel in which a first substrate and a second substrate are disposed to each other, in which the first substrate includes an insulating substrate composed of a resin, a circuit layer having a circuit where a plurality of Thin-film transistors are arranged in a matrix, and a polarizer disposed between the insulating substrate and the circuit layer, the insulating substrate has a thickness of 20 μm or more and 150 μm or less, a transmittance of 80% or more for a visible light at a wavelength of 400 nm or more and 800 nm or less, and a 3% weight reduction temperature of 300° C. or higher, and has no melting point or has a melting point of 300° C. or higher.02-04-2010
20100073620IMAGE DISPLAY - To provide an image display which is capable of preventing fracturing of a substrate which is attributable to a substrate expansion arising from heating or humidification during a manufacture process, impact in use, or distortion when curved display is conducted, a connection failure between a semiconductor chip and a wiring terminal which are mounted on the substrate, and crack occurring in the substrate in the vicinity of an area where the semiconductor chip is mounted, with no need to add members and with no limit of pulling the wiring around. An image display part is formed on one surface of a flexible substrate, and a groove with a depth not reaching a thickness of the substrate is continuously or intermittently defined in another surface of the substrate.03-25-2010
20100102322DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - The display device having a thin film transistor formed on a substrate including a display portion is provided. The thin film transistor including: a gate electrode; a gate insulating film formed so as to cover the gate electrode; a semiconductor laminated film formed on top the gate insulating film so as to extend over the gate electrode, the semiconductor laminated film being formed by laminating at least a polycrystalline semiconductor film and an amorphous semiconductor film, a first electrode and a second electrode disposed on top of the semiconductor laminated film so as to be opposed to each other across a region superposing the gate electrode. In the display device, the semiconductor laminated film is formed immediately below a wiring extending from the first electrode and immediately below a wiring extending from the second electrode.04-29-2010
20100201929DISPLAY DEVICE - Provided is a display device, including: a barrier layer formed of a plurality of material layers being laminated; and a first material layer and a second material layer that sandwich the barrier layer, in which: the first material layer, the plurality of material layers forming the barrier layer, and the second material layer have light refractive indexes that are set so as to sequentially change from the first material layer to the second material layer in one of decreasing order and increasing order; and the plurality of material layers forming the barrier layer include a high stress film and a low stress film which are alternately laminated on each other. Therefore, the display device of the present invention can achieve crack prevention, enhancement in adhesion between the respective layers and enhancement in barrier property, together with reducing a light reflectance of the barrier layer.08-12-2010
20100214525IMAGE DISPLAY DEVICE - Provided is an image display device, including: a first flexible substrate; and a circuit-forming layer constituting an image display area, the circuit-forming layer being made to adhere to one of surfaces of the first flexible substrate, in which, when the first flexible substrate has a thickness of t2, the circuit-forming layer has a thickness of t1 satisfying the following Equation (1):08-26-2010
20110042667SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a thin film transistor (TFT) through a process including back exposure, in which oxide semiconductor is used for a channel layer; using an electrode over a substrate as a mask, negative resist is exposed to light from the back of the substrate; the negative resist except its exposed part is removed; and an electrode is shaped by etching a conductive film using the exposed part as an etching mask.02-24-2011
20110049508THIN FILM TRANSISTOR AND METHOD FOR MANUFACTURING THE SAME - In a manufacturing method for thin film transistors, the following procedure is taken: a sacrifice layer comprised of a metal oxide semiconductor is formed over a conductive layer comprised of a metal oxide semiconductor; a metal film is formed over the sacrifice layer; the metal film is processed by dry etching; and the portion of the sacrifice layer exposed by this dry etching is subjected to wet etching.03-03-2011
20110102700IMAGE DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - Provided is an image display device including: a resin member; a TFT circuit layer formed above the resin member; and an inorganic film formed on a surface of the resin member to be formed between the resin member and the TFT circuit layer, in which the inorganic film has a stress acting thereon, the stress being, at a glass transition point (Tg) of the resin member, in the range of equal to or higher than −300 MPa to equal to or lower than 200 MPa, while, at a room temperature, in the range of equal to or higher than −400 MPa to equal to or lower than 50 MPa.05-05-2011
20110108841SEMICONDUCTOR DEVICE, MANUFACTURING METHOD THEREOF, AND DISPLAY APPARATUS USING THE SEMICONDUCTOR DEVICE - Provided is a method of promoting a deposition of semiconductor crystal nuclei on an insulating film such as a silicon oxide film even at a low temperature of 450° C. or lower in a reactive thermal CVD method. As one means thereof, a first semiconductor film is formed on an insulating substrate, and then semiconductor crystal nuclei are formed on parts of the first semiconductor film and simultaneously the first semiconductor film other than that in forming regions of the semiconductor crystal nuclei and their peripheries is removed by etching. Thereafter, a second semiconductor film is formed with using the semiconductor crystal nuclei as seeds.05-12-2011

Patent applications by Mutsuko Hatano, Kokubunji JP