Patents by Inventor Masaya Adachi
Masaya Adachi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8791632Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer and an anode. A driver element is connected with the light-emitting element, and an insulation layer having a contact hole formed over the driver element. The anode is formed on the insulation layer and is connected to the driver element via the contact hole. A tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle with respect to the flat surface portion of the light-emitting device. The tilted reflective surface is provided on a surface of a slope of a bank provided on the substrate and formed to cover the contact hole.Type: GrantFiled: October 3, 2013Date of Patent: July 29, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
-
Patent number: 8730431Abstract: The backlight has an anisotropic diffusion sheet disposed between the reflective polarizing plate and the optical path converter. The anisotropic diffusion sheet includes a refractive index anisotropic diffusion sheet stretched in an absorption axis direction in which a concave-convex portion is formed on a surface of the reflective polarized plate, and an isotropic material part laminated on a surface of the concave-convex part. The isotropic material part has an isotropic reflective index. The refractive index of the isotropic material part is the same as the refractive index in the transmission axis direction perpendicular to a stretching direction of the refractive index anisotropic sheet.Type: GrantFiled: September 8, 2011Date of Patent: May 20, 2014Assignee: Japan Display Inc.Inventors: Tatsuya Sugita, Masaya Adachi
-
Publication number: 20140091705Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer and an anode. A driver element is connected with the light-emitting element, and an insulation layer having a contact hole formed over the driver element. The anode is formed on the insulation layer and is connected to the driver element via the contact hole. A tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle with respect to the flat surface portion of the light-emitting device. The tilted reflective surface is provided on a surface of a slope of a bank provided on the substrate and formed to cover the contact hole.Type: ApplicationFiled: October 3, 2013Publication date: April 3, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display IncInventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
-
Patent number: 8610865Abstract: The TFT substrate includes a pixel electrode and a common electrode laminated one on top of another via an insulating layer, one of the pixel electrode and the common electrode provided farther from the liquid crystal layer being formed into a plane shape, and another of the pixel electrode and the common electrode provided closer to the liquid crystal layer having slits formed therein, each of the plurality of slits having a closed end portion. The liquid crystal display panel further includes a reflection portion for reflecting light, the reflection portion being formed at a surface of the liquid crystal display panel on the illumination device side in a portion which overlaps, in plan view, the end portion of the each of the slits in the long-side direction and a vicinity thereof, and a part of an inner region of the each of the slits.Type: GrantFiled: December 22, 2011Date of Patent: December 17, 2013Assignee: Japan Display Inc.Inventors: Masaya Adachi, Osamu Itou, Shigeki Nishizawa
-
Patent number: 8570462Abstract: Provided is a liquid crystal display device including: a liquid crystal cell (15) including a first substrate (110), a second substrate (111), and a liquid crystal layer (160) sealed between the first substrate and the second substrate; a first polarization member (210) for transmitting light in a predetermined polarization direction; and a second polarization member (220) for transmitting light in another polarization direction which is orthogonal to the predetermined polarization direction. At least one of the first polarization member and the second polarization member includes a multilayer thin film polarizer including a plurality of thin film polarizers which are stacked so that transmission axes of the plurality of thin film polarizers are aligned. The multilayer thin film polarizer includes a thin film polarizer formed in a predetermined film thickness by coating with dye molecules which are aligned by a shear stress.Type: GrantFiled: April 13, 2010Date of Patent: October 29, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takato Hiratsuka, Masaya Adachi, Miharu Otani, Jun Tanaka, Chie Yoshizawa
-
Patent number: 8558449Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer, an anode and a cathode, a driver element connected with the light-emitting element, an insulation layer having a contact hole formed over the driver element, wherein the anode is formed on the insulation layer and connected to the driver element via the contact hole, and a tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle against the flat surface portion of the light-emitting device, wherein the tilted reflective surface is provided on a surface of a slope of a bank that is provided on the substrate.Type: GrantFiled: May 22, 2012Date of Patent: October 15, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
-
Publication number: 20130240863Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.Type: ApplicationFiled: May 8, 2013Publication date: September 19, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Toshihiro SATO, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
-
Publication number: 20130169145Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer, an anode and a cathode, a driver element connected with the light-emitting element, an insulation layer having a contact hole formed over the driver element, wherein the anode is formed on the insulation layer and connected to the driver element via the contact hole, and a tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle against the flat surface portion of the light-emitting device, wherein the tilted reflective surface is provided on a surface of a slope of a bank that is provided on the substrate.Type: ApplicationFiled: May 22, 2012Publication date: July 4, 2013Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
-
Patent number: 8465168Abstract: This lighting unit can control luminance in a plurality of block areas independently, and minimize luminance unevenness caused by discretely arrayed light sources, with a reduced number of parts. The lighting unit comprises: a light guide plate having a first and a second grooves formed therein; a first light source group accommodated in the first groove; and a second light source group accommodated in the second groove; the light guide plate having a first light mixing area, a first light emitting area and a second light mixing area; in the first light mixing area, the thickness of the light guide plate progressively increasing away from the first light source group; in the second light mixing area, the thickness of the light guide plate progressively increasing away from the second light source group; and in the first light emitting area, the light guide plate being flat-plate-like.Type: GrantFiled: February 23, 2011Date of Patent: June 18, 2013Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Masaya Adachi, Makoto Tsumura
-
Patent number: 8446347Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.Type: GrantFiled: February 2, 2012Date of Patent: May 21, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Toshihiro Sato, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
-
Patent number: 8368080Abstract: The present invention provides light emitting displays which produce a bright image by efficiently emitting light radiated from a light-emitting thin-film layer to the viewer side, and also produces a high-quality image of high contrast ratio and changing in color to a limited extent over a wide viewing angle range even in a bright atmosphere.Type: GrantFiled: December 2, 2009Date of Patent: February 5, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Osamu Itou
-
Patent number: 8345182Abstract: A liquid crystal display device including lenticular lenses and color separation filters, associated with a subpixel row direction, on the backlight side with respect to lenticular lenses. In a RGW row, a color separation filter reflecting B wavelengths is arranged, and in a GBW row, a color separation filter reflecting R wavelengths is arranged. Together with collecting light in transmissive aperture parts with lenticular lenses and improving the transmitted quantity of light, the light reflected by color separation filters is returned to the backlight and re-utilized.Type: GrantFiled: January 24, 2008Date of Patent: January 1, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tatsuya Sugita, Masaya Adachi, Shoichi Hirota
-
Publication number: 20120320310Abstract: A lighting device includes a light source 30, a light guide 20 provided adjacent to the light source 30 and including a light source light incident surface 21 on which light emitted by the light source 30 enters and a planar light emission surface 22 from which planar light is emitted, and an optical sheet 50 including a planar light incident surface 53 on which the planar light enters, and configured to change a traveling direction of the planar light because a light emission side of the optical sheet 50 has a shape in which plural columnar prisms 51 extending in parallel to the light source light incident surface 21 are arranged side by side. In each of the prisms 51, a distal surface has at least different two kinds of inclination angles.Type: ApplicationFiled: June 14, 2012Publication date: December 20, 2012Inventors: Masaya ADACHI, Akiyoshi TOBE, Yasuhisa SHIRAISHI
-
Patent number: 8325295Abstract: A liquid crystal display device includes a liquid crystal display panel, a plurality of groups of light source units, a plurality of light guide plates, and a light source control circuit configured to control light amounts of the light source units. The plurality of light guide plates are configured to transmit light from the plurality of groups of the light source units. In each of the plurality of light guide plates, areas from which the transmitted light exiting toward the liquid crystal display panel differ from one another. One of the plurality of groups of the light source units paired with one of the plurality of light guide plates includes at least two light source units that are controlled in light amount independently. A number of the areas of the one of the plurality of light guide plates is at least a number of the light source units thereof.Type: GrantFiled: February 19, 2010Date of Patent: December 4, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tatsuya Sugita, Masaya Adachi, Shinichiro Oka
-
Patent number: 8294852Abstract: An E-type polarizing layer is provided between a pair of orthogonally oriented O-type polarizing layers, and alternatively, an O-type polarizing layer and an E-type polarizing layer which are oriented orthogonal to each other are provided. When a liquid crystal layer has a slow axis, the E-type polarizing layer is disposed so that an absorption axis thereof is orthogonal to the slow axis. Therefore, a liquid crystal display device having a wide viewing angle is realized in which a contrast ratio is improved by suppressing a light leakage occurring when observed from an oblique direction.Type: GrantFiled: August 20, 2010Date of Patent: October 23, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Takato Hiratsuka
-
Publication number: 20120248476Abstract: A color light emitting display includes light-emitting devices constituting a plurality of red, green and blue pixels disposed in a matrix form on a substrate, said light-emitting display takes out light from a side of said light-emitting devices opposite to said substrate on which said light-emitting devices are formed, and wherein when a wavelength of the light having an interference intensity of which with respect to the light emitted from an emissive layer constituting said light-emitting device becomes a maximum value at 0 degree of a viewing angle is ?imax, and a wavelength of the light becomes a maximum in a light intensity of the light emitted from said emissive layer is ?emax, a relationship of ?emax?50 nm??imax<?emax is satisfied.Type: ApplicationFiled: May 16, 2012Publication date: October 4, 2012Inventors: Masaya ADACHI, Toshihiro Sato, Naoki Tokuda
-
Patent number: 8274218Abstract: A color light emitting display includes light-emitting devices constituting a plurality of red, green and blue pixels disposed in a matrix form on a substrate, said light-emitting display takes out light from a side of said light-emitting devices opposite to said substrate on which said light-emitting devices are formed, and wherein when a wavelength of the light having an interference intensity of which with respect to the light emitted from an emissive layer constituting said light-emitting device becomes a maximum value at 0 degree of a viewing angle is ?imax, and a wavelength of the light becomes a maximum in a light intensity of the light emitted from said emissive layer is ?emax, a relationship of ?emax?50 nm??imax<?emax is satisfied.Type: GrantFiled: May 16, 2012Date of Patent: September 25, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Toshihiro Sato, Naoki Tokuda
-
Patent number: 8259269Abstract: A VA liquid crystal display device is capable of performing display under the wide environments including a bright place and a dark place, transmission display with a wide viewing angle and a high image quality, and improves the gray scale productivity in an oblique direction. An alignment control structure (projection structure) is disposed in a direction orthogonal to the slits of a common electrode (comb-like electrode), a lateral electric field is applied to a liquid crystal layer that is vertically aligned by the comb-like electrode, and the alignment of the liquid crystal is controlled to a different direction to make multi-domains in the VA liquid crystal display device. Also, the multi-domains are performed by continuously changing the pitches of the slits.Type: GrantFiled: July 28, 2006Date of Patent: September 4, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co.. Ltd.Inventors: Osamu Itou, Masaya Adachi, Shinichiro Oka
-
Patent number: 8253888Abstract: Provided is a liquid crystal display device with a backlight including a light guide plate. The light guide plate includes, a reflective polarizing plate for transmitting a P-polarized component and reflecting an S-polarized component, a reflector for reflecting the S-polarized component reflected by the reflective polarizing plate, and a polarization converting member for converting the S-polarized component to a P-polarized component. The reflective polarizing plate and the reflector are tilted at an angle such that reflecting surfaces thereof are not perpendicular to four sides of the liquid crystal display panel and are disposed such that the S-polarized component contained in a main component of light emitted from the light sources is reflected by the reflector. This keeps small the size of the liquid crystal display device and still improves reuse efficiency of the light emitted from the light sources.Type: GrantFiled: February 19, 2010Date of Patent: August 28, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Osamu Itou, Tatsuya Sugita, Masaya Adachi
-
Patent number: 8248562Abstract: Provided is a display panel having a high-performance antireflection layer at a low cost. In a liquid crystal display panel or an organic light-emitting diode display panel constituted by a first transparent substrate, a second transparent substrate and a liquid crystal layer between these two transparent substrates further includes an antireflection layer on a portion which is at least one display area and a visible side (outer surface) by a viewer, and layers made of the same material as the antireflection layer formed on at least the opposite side (inside surface) of the surface of the portion corresponding to the display area and on three edge faces.Type: GrantFiled: August 28, 2006Date of Patent: August 21, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Makiko Sugibayashi, Tetsuya Ohshima, Shinichi Komura