Patents by Inventor Mitsunori Imade
Mitsunori Imade 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: 9293594Abstract: A source and drain electrode layer (3s/3d) of an oxide TFT element (3) is formed by a first conductive layer. A gate electrode (3g) of the oxide TFT element (3) and a gate electrode (5g) of an a-Si TFT element (5) are formed by a single conductive layer, that is, a second conductive layer. A source and drain electrode layer (5s/5d) of the a-Si TFT element (5) is formed by a third conductive layer. The third conductive layer is formed above the second conductive layer in a thickness direction in which each conductive layer is stacked on an insulating substrate (2). Further, the first conductive layer is formed below the second conductive layer in the thickness direction. Therefore, it is possible to provide a circuit board that can have an improved degree of integration of transistor elements formed on the insulating substrate.Type: GrantFiled: March 17, 2014Date of Patent: March 22, 2016Assignee: Sharp Kabushiki KaishaInventors: Jun Nishimura, Hideki Kitagawa, Atsuhito Murai, Hajime Imai, Shinya Tanaka, Mitsunori Imade, Tetsuo Kikuchi, Junya Shimada, Kazunori Morimoto
-
Patent number: 9111810Abstract: A circuit board (1) includes a plurality of transistor elements on an insulating substrate (2). At least one of the plurality of transistor elements is an oxide TFT (10) including, as a channel layer (11), an oxide semiconductor. At least one of the plurality of transistor elements is an a-SiTFT (20) (i) being different from the oxide TFT (10) in functions as circuit components and (ii) including, as a channel layer (21), an amorphous silicon semiconductor. The oxide TFT (10) is a top gate transistor, and the a-SiTFT (20) is a bottom gate transistor. This provides: a configuration that can (a) enhance the performance of the circuit board equipped with the TFTs differing in their respective functions as circuit components and (b) reduce the area necessary for mounting the TFTs; and a method for producing the circuit board.Type: GrantFiled: March 2, 2011Date of Patent: August 18, 2015Assignee: Sharp Kabushiki KaishaInventors: Hideki Kitagawa, Shinya Tanaka, Hajime Imai, Atsuhito Murai, Mitsunori Imade, Tetsuo Kikuchi, Kazunori Morimoto, Junya Shimada, Jun Nishimura
-
Publication number: 20140197412Abstract: A source and drain electrode layer (3s/3d) of an oxide TFT element (3) is formed by a first conductive layer. A gate electrode (3g) of the oxide TFT element (3) and a gate electrode (5g) of an a-Si TFT element (5) are formed by a single conductive layer, that is, a second conductive layer. A source and drain electrode layer (5s/5d) of the a-Si TFT element (5) is formed by a third conductive layer. The third conductive layer is formed above the second conductive layer in a thickness direction in which each conductive layer is stacked on an insulating substrate (2). Further, the first conductive layer is formed below the second conductive layer in the thickness direction. Therefore, it is possible to provide a circuit board that can have an improved degree of integration of transistor elements formed on the insulating substrate.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: Sharp Kabushiki KaishaInventors: Jun NISHIMURA, Hideki KITAGAWA, Atsuhito MURAI, Hajime IMAI, Shinya TANAKA, Mitsunori IMADE, Tetsuo KIKUCHI, Junya SHIMADA, Kazunori MORIMOTO
-
Patent number: 8659726Abstract: Transflective-type and reflection type liquid crystal display devices having a high image quality are provided with a good production efficiency. A liquid crystal display device according to the present invention is a liquid crystal display device which includes; a first substrate and a second substrate between which liquid crystal is interposed; a first electrode and a second electrode formed on the first substrate for applying a voltage for controlling an orientation of the liquid crystal; a transistor having an electrode which is electrically connected to the first electrode; a metal layer being formed on the first substrate and including a protrusion, a recess, or an aperture; and a reflective layer formed above the metal layer on the first substrate for reflecting incident light toward a display surface. The metal layer is made of a same material as that of a gate electrode of the transistor.Type: GrantFiled: December 27, 2007Date of Patent: February 25, 2014Assignee: Sharp Kabushiki KaishaInventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara, Junya Shimada, Mitsunori Imade, Yoshiharu Kataoka
-
Patent number: 8581257Abstract: The circuit board (1) of the present invention includes a plurality of transistor elements provided on a single insulating substrate (2) for respective pixels that are two-dimensionally arranged or respective pixels in a group of a predetermined number of the pixels. At least one of the plurality of transistor elements is an oxide TFT (10) having a channel layer (11) formed by an oxide semiconductor, and at least another of the plurality of transistor elements is an a-Si TFT (20) having a channel layer (21) formed by, for example, an amorphous silicon semiconductor. Each of the oxide TFT (10) and the a-Si TFT (20) is a bottom-gate transistor.Type: GrantFiled: January 17, 2011Date of Patent: November 12, 2013Assignee: Sharp Kabushiki KaishaInventors: Atsuhito Murai, Shinya Tanaka, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Tetsuo Kikuchi, Kazunori Morimoto, Junya Shimada, Jun Nishimura
-
Publication number: 20130214279Abstract: A source and drain electrode layer (3s/3d) of an oxide TFT element (3) is formed by a first conductive layer. A gate electrode (3g) of the oxide TFT element (3) and a gate electrode (5g) of an a-Si TFT element (5) are formed by a single conductive layer, that is, a second conductive layer. A source and drain electrode layer (5s/5d) of the a-Si TFT element (5) is formed by a third conductive layer. The third conductive layer is formed above the second conductive layer in a thickness direction in which each conductive layer is stacked on an insulating substrate (2). Further, the first conductive layer is formed below the second conductive layer in the thickness direction. Therefore, it is possible to provide a circuit board that can have an improved degree of integration of transistor elements formed on the insulating substrate.Type: ApplicationFiled: February 23, 2011Publication date: August 22, 2013Inventors: Jun Nishimura, Hideki Kitagawa, Atsuhito Murai, Hajime Imai, Shinya Tanaka, Mitsunori Imade, Tetsuo Kikuchi, Junya Shimada, Kazunori Morimoto
-
Publication number: 20130146866Abstract: A circuit board (1) includes a plurality of transistor elements on an insulating substrate (2). At least one of the plurality of transistor elements is an oxide TFT (10) including, as a channel layer (11), an oxide semiconductor. At least one of the plurality of transistor elements is an a-SiTFT (20) (i) being different from the oxide TFT (10) in functions as circuit components and (ii) including, as a channel layer (21), an amorphous silicon semiconductor. The oxide TFT (10) is a top gate transistor, and the a-SiTFT (20) is a bottom gate transistor. This provides: a configuration that can (a) enhance the performance of the circuit board equipped with the TFTs differing in their respective functions as circuit components and (b) reduce the area necessary for mounting the TFTs; and a method for producing the circuit board.Type: ApplicationFiled: March 2, 2011Publication date: June 13, 2013Inventors: Hideki Kitagawa, Shinya Tanaka, Hajime Imai, Atsuhito Murai, Mitsunori Imade, Tetsuo Kikuchi, Kazunori Morimoto, Junya Shimada, Jun Nishimura
-
Publication number: 20130092927Abstract: The circuit board (1) of the present invention includes a plurality of transistor elements provided on a single insulating substrate (2) for respective pixels that are two-dimensionally arranged or respective pixels in a group of a predetermined number of the pixels. At least one of the plurality of transistor elements is an oxide TFT (10) having a channel layer (11) formed by an oxide semiconductor, and at least another of the plurality of transistor elements is an a-Si TFT (20) having a channel layer (21) formed by, for example, an amorphous silicon semiconductor. Each of the oxide TFT (10) and the a-Si TFT (20) is a bottom-gate transistor.Type: ApplicationFiled: January 17, 2011Publication date: April 18, 2013Inventors: Atsuhito Murai, Shinya Tanaka, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Tetsuo Kikuchi, Kazunori Morimoto, Junya Shimada, Jun Nishimura
-
Patent number: 8384860Abstract: A liquid crystal display device has a plurality of pixels and a reflection section for reflecting incident light toward a display surface. The reflection section includes a metal layer having a plurality of apertures, and a reflective layer formed on the metal layer with an insulating layer interposed therebetween. A surface of the reflective layer includes a plurality of recesses or protrusions formed in accordance with a cross-sectional shape of the metal layer.Type: GrantFiled: May 29, 2008Date of Patent: February 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Yoshihito Hara, Mitsunori Imade, Junya Shimada
-
Patent number: 8310640Abstract: A liquid crystal display device according to the present invention includes a vertical alignment type liquid crystal layer 32. Each pixel electrode thereof 12 has a plurality of unit electrode portions 12a, each of which has a conductive film and slits 13 that have been cut through the conductive film. When a predetermined voltage is applied between the pixel electrode and a counter electrode, a liquid crystal domain is produced in association with each unit electrode portion and liquid crystal molecules in the liquid crystal domain come to have a substantially radially tilting alignment state. As a result, the device of the present invention achieves a wide viewing angle and a fast response characteristic.Type: GrantFiled: January 22, 2008Date of Patent: November 13, 2012Assignee: Sharp Kabushiki KaishaInventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara, Junya Shimada, Mitsunori Imade
-
Patent number: 8294854Abstract: A liquid crystal display device includes a reflection region for reflecting incident light toward a display surface, wherein, the reflection region includes a metal layer formed on a substrate, a semiconductor layer formed above the metal layer, and a reflective layer formed above the semiconductor layer; and the reflection region includes a first recess formed on a surface of the reflective layer, a second recess formed on the surface of the reflective layer in the first recess, and a third recess formed on the surface of the reflective layer in the second recess. The liquid crystal display device provides a low-cost transflective-type or reflection-type liquid crystal display device having a high image quality.Type: GrantFiled: April 5, 2007Date of Patent: October 23, 2012Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Mitsunori Imade, Yoshihito Hara, Junya Shimada, Takao Matsumoto
-
Patent number: 8243236Abstract: A transflective-type and a reflection-type liquid crystal display device having a high reflection efficiency and a high image quality are provided. A liquid crystal display device of the present invention is a liquid crystal display device including a reflection region for reflecting incident light toward a display surface, wherein the reflection region includes a metal layer, an insulating layer formed on the metal layer, a semiconductor layer formed on the insulating layer, and a reflective layer formed on the semiconductor layer; a plurality of recesses are formed in at least one of the metal layer, the insulating layer and the semiconductor layer; a plurality of dents are formed in the reflective layer in the reflection region according to the plurality of recesses; and a shortest distance a between edge portions of at least two of the plurality of recesses is 4 ?m or less.Type: GrantFiled: September 7, 2007Date of Patent: August 14, 2012Assignee: Sharp Kabushiki KaishaInventors: Yoshihito Hara, Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Junya Shimada
-
Patent number: 7995167Abstract: A transflective-type and a reflection-type liquid crystal display device having a high reflection efficiency and a high image quality are provided.Type: GrantFiled: October 16, 2007Date of Patent: August 9, 2011Assignee: Sharp Kabushiki KaishaInventors: Mitsunori Imade, Hajime Imai, Hideki Kitagawa, Tetsuo Kikuchi, Yoshihito Hara, Junya Shimada
-
Publication number: 20100321618Abstract: A transflective-type and a reflection-type liquid crystal display device having a high reflection efficiency and a high image quality are provided.Type: ApplicationFiled: October 16, 2007Publication date: December 23, 2010Inventors: Mitsunori Imade, Hajime Imai, Hideki Kitagawa, Tetsuo Kikuchi, Yoshihito Hara, Junya Shimada
-
Publication number: 20100315578Abstract: A transflective-type and a reflection-type liquid crystal display device having a high reflection efficiency and a high image quality are provided. A liquid crystal display device of the present invention is a liquid crystal display device including a reflection region for reflecting incident light toward a display surface, wherein the reflection region includes a metal layer, an insulating layer formed on the metal layer, a semiconductor layer formed on the insulating layer, and a reflective layer formed on the semiconductor layer; a plurality of recesses are formed in at least one of the metal layer, the insulating layer and the semiconductor layer; a plurality of dents are formed in the reflective layer in the reflection region according to the plurality of recesses; and a shortest distance a between edge portions of at least two of the plurality of recesses is 4 ?m or less.Type: ApplicationFiled: September 7, 2007Publication date: December 16, 2010Inventors: Yoshihito Hara, Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Junya Shimada
-
Publication number: 20100182527Abstract: A reflection-type or transflective-type liquid crystal display device having a high image quality, which has an excellent efficiency of utility of reflected light, is provided at low cost. A liquid crystal display device according to the present invention is a liquid crystal display device having a plurality of pixels, and including, in each of the plurality of pixels, a reflection section for reflecting incident light toward a display surface. The reflection section includes a metal layer having a plurality of apertures, and a reflective layer formed on the metal layer with an insulating layer interposed therebetween. A surface of the reflective layer includes a plurality of recesses or protrusions formed in accordance with a cross-sectional shape of the metal layer. Regarding distance between two adjoining apertures among the plurality of apertures of the metal layer, a shortest distance is no less than 0.3 ?m and no more than 3.0 ?m.Type: ApplicationFiled: May 29, 2008Publication date: July 22, 2010Inventors: Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Yoshihito Hara, Mitsunori Imade, Junya Shimada
-
Publication number: 20100118238Abstract: Reflection-type and transflective-type liquid crystal display devices having a high image quality, in which moiré or coloration is reduced, are provided at low cost.Type: ApplicationFiled: December 10, 2007Publication date: May 13, 2010Inventors: Junya Shimada, Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Mitsunori Imade, Yoshihito Hara
-
Publication number: 20100053517Abstract: Transflective-type and reflection type liquid crystal display devices having a high image quality are provided with a good production efficiency. A liquid crystal display device according to the present invention is a liquid crystal display device which includes; a first substrate and a second substrate between which liquid crystal is interposed; a first electrode and a second electrode formed on the first substrate for applying a voltage for controlling an orientation of the liquid crystal; a transistor having an electrode which is electrically connected to the first electrode; a metal layer being formed on the first substrate and including a protrusion, a recess, or an aperture; and a reflective layer formed above the metal layer on the first substrate for reflecting incident light toward a display surface. The metal layer is made of a same material as that of a gate electrode of the transistor.Type: ApplicationFiled: December 27, 2007Publication date: March 4, 2010Inventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara, Junya Shimada, Mitsunori Imade, Yoshiharu Kataoka
-
Publication number: 20100045917Abstract: A liquid crystal display device according to the present invention includes a vertical alignment type liquid crystal layer 32. Each pixel electrode thereof 12 has a plurality of unit electrode portions 12a, each of which has a conductive film and slits 13 that have been cut through the conductive film. When a predetermined voltage is applied between the pixel electrode and a counter electrode, a liquid crystal domain is produced in association with each unit electrode portion and liquid crystal molecules in the liquid crystal domain come to have a substantially radially tilting alignment state. As a result, the device of the present invention achieves a wide viewing angle and a fast response characteristic.Type: ApplicationFiled: January 22, 2008Publication date: February 25, 2010Inventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara, Junya Shimada, Mitsunori Imade
-
Publication number: 20090185119Abstract: A liquid crystal display device includes a reflection region for reflecting incident light toward a display surface, wherein, the reflection region includes a metal layer formed on a substrate, a semiconductor layer formed above the metal layer, and a reflective layer formed above the semiconductor layer; and the reflection region includes a first recess formed on a surface of the reflective layer, a second recess formed on the surface of the reflective layer in the first recess, and a third recess formed on the surface of the reflective layer in the second recess. The liquid crystal display device provides a low-cost transflective-type or reflection-type liquid crystal display device having a high image quality.Type: ApplicationFiled: April 5, 2007Publication date: July 23, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Mitsunori Imade, Yoshihito Hara, Junya Shimada, Takao Matsumoto