Patents by Inventor Yukio Kurozumi
Yukio Kurozumi 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: 11067858Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a plurality of first spacers protruding toward the liquid crystal layer, and the second substrate includes, on a surface closer to the liquid crystal layer, an alignment film, a plurality of second spacers in contact with the plurality of first spacers, and a plurality of pedestal films facing the plurality of first spacers. A height of the plurality of second spacers is greater than a height of the plurality of pedestal films, and the plurality of pedestal films include a first pedestal film having a smaller area than an area of each of the plurality of second spacers, and a second pedestal film having a planar pattern that is longer, as a whole, than a planar pattern of the first pedestal film.Type: GrantFiled: April 21, 2020Date of Patent: July 20, 2021Assignee: SHARP KABUSHIKI KAISHAInventor: Yukio Kurozumi
-
Publication number: 20200341318Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a plurality of first spacers protruding toward the liquid crystal layer, and the second substrate includes, on a surface closer to the liquid crystal layer, an alignment film, a plurality of second spacers in contact with the plurality of first spacers, and a plurality of pedestal films facing the plurality of first spacers. A height of the plurality of second spacers is greater than a height of the plurality of pedestal films, and the plurality of pedestal films include a first pedestal film having a smaller area than an area of each of the plurality of second spacers, and a second pedestal film having a planar pattern that is longer, as a whole, than a planar pattern of the first pedestal film.Type: ApplicationFiled: April 21, 2020Publication date: October 29, 2020Inventor: YUKIO KUROZUMI
-
Publication number: 20200333657Abstract: A display panel includes paired substrates including plate faces each divided into an active area and a non-active area and facing each other across an interior space, a sealing portion interposed between the paired substrates and arranged in the non-active area in such a manner as to surround the interior space for sealing the interior space, an alignment film disposed on at least the display area on one of the paired substrates, an insulating film disposed on the one of the paired substrates farther from the interior space than the alignment film and arranged across the active area and the non-active area, and a recess portion disposed in the non-active area on the insulating film in such a manner as to overlap the sealing portion and including at least a first recess and a second recess configured to extend in such a manner as to surround the first recess.Type: ApplicationFiled: March 13, 2018Publication date: October 22, 2020Inventors: RYOSUKE TAKAHASHI, SHIGEKI TANAKA, YUKIO KUROZUMI, RYOH UEDA
-
Patent number: 10754203Abstract: A liquid crystal panel includes a pair of substrates, a seal part between the pair of substrates and in a non-display region to surround and seal the liquid crystal layer, a planarizing film and a second interlayer insulating film being insulating films on the array substrate across a display region and the non-display region, an alignment film on the array substrate closer to the liquid crystal layer than the planarizing film and the second interlayer insulating film are, the alignment film being disposed across the display region and the non-display region, and a defining part formed of the planarizing film and the second interlayer insulating film, which are insulating films, the defining part being disposed at a position overlapping with the seal part in the non-display region, to define an alignment film non-disposed region where the alignment film is not disposed.Type: GrantFiled: June 21, 2017Date of Patent: August 25, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Shigeki Tanaka, Ryoh Ueda, Yukio Kurozumi, Seiji Hamada, Ryosuke Takahashi
-
Publication number: 20190146282Abstract: A liquid crystal panel 11 includes a pair of substrates, a seal part interposed between the pair of substrates and disposed in a non-display region NAA to surround and seal the liquid crystal layer, a planarizing film and a second interlayer insulating film being insulating films provided on the array substrate across a display region and the non-display region, an alignment film provided on the array substrate closer to the liquid crystal layer than the planarizing film and the second interlayer insulating film, which are insulating films, are, the alignment film being disposed across the display region and the non-display region, and a defining part formed of the planarizing film and the second interlayer insulating film, which are insulating films, the defining part being disposed at a position overlapping with the seal part in the non-display region, to define an alignment film non-disposed region where the alignment film is not disposed.Type: ApplicationFiled: June 21, 2017Publication date: May 16, 2019Inventors: SHIGEKI TANAKA, RYOH UEDA, YUKIO KUROZUMI, SEIJI HAMADA, RYOSUKE TAKAHASHI
-
Patent number: 8284355Abstract: The present invention has an object to provide an active matrix substrate, a liquid crystal display panel, a liquid crystal display element, a liquid crystal display device, and a substrate for liquid crystal display panel, each capable of suppressing generation of uneven cell gap without increase in a parasitic capacitance of a wiring. The active matrix substrate of the present invention is an active matrix substrate including a spacer on a substrate, wherein the spacer includes a base layer and a covering layer, the base layer being buried in the covering layer.Type: GrantFiled: October 12, 2007Date of Patent: October 9, 2012Assignee: Sharp Kabushiki KaishaInventors: Tsuyoshi Tokuda, Hiroto Akiyama, Akihiro Shoraku, Toshihide Tsubata, Yukio Kurozumi
-
Publication number: 20120200482Abstract: A liquid crystal display panel 100 has: a first substrate 11, having an active region AA having pixel electrodes and TFTs, and a gate driver region GDR provided on the outside of the active region AA; and a second substrate 21, disposed opposing the first substrate 11 with a liquid crystal layer 30 interposed therebetween, and having an opposite electrode 23. The opposite electrode 23 opposes the gate driver region GDR with the liquid crystal layer 30 interposed therebetween, and an insulating resin layer 26 is formed on the region of the opposite electrode 23 so that the insulating resin layer 26 opposes the gate driver region GDR. Thus, short-circuit failure between the driver region of the TFT substrate and the opposite electrode is eliminated.Type: ApplicationFiled: September 30, 2010Publication date: August 9, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Tetsuo Fukaya, Yuhichi Saitoh, Hiroyuki Moriwaki, Yasuhiro Nakatake, Yukio kurozumi, Masato Kakuta, Masahiko Nakamizo, Takahiro Umezawa
-
Patent number: 8179514Abstract: A liquid crystal display device (50a) includes: an active matrix substrate (20a) having a plurality of gate lines (1a) extending in parallel with each other; a counter substrate (30a) provided so as to face the active matrix substrate (20a); a liquid crystal layer (25) provided between the active matrix substrate (20a) and the counter substrate (30a); and spherical spacers (21) provided between the active matrix substrate (20a) and the counter substrate (30a) so as to overlap each gate line (1a), for defining a thickness of the liquid crystal layer (25). A first protruding wall (9a) for surrounding the spacers (21) is provided over each gate layer (1a) of the active matrix substrate (20a), and a second protruding wall (19b) for surrounding the spacers (21) is provided on the counter substrate (30a).Type: GrantFiled: June 6, 2007Date of Patent: May 15, 2012Assignee: Sharp Kabushiki KaishaInventors: Yukio Kurozumi, Makoto Kanbe, Yoshitaka Hibino, Yasuo Minami
-
Patent number: 8134679Abstract: A liquid crystal display device (50a) includes: an active matrix substrate (20a) having a plurality of gate lines (1a) extending in parallel with each other; a counter substrate (30a) arranged so as to face the active matrix substrate (20a); a liquid crystal layer (25) interposed between the active matrix substrate (20a) and the counter substrate (30a); and spherical spacers (21) disposed between the active matrix substrate (20a) and the counter substrate (30a) so as to overlap each gate line (1a), for defining a thickness of the liquid crystal layer (25). A protruding wall (9a) is provided over each gate line (1a) of the active matrix substrate (20a) so as to surround the spacers (21).Type: GrantFiled: June 6, 2007Date of Patent: March 13, 2012Assignee: Sharp Kabushiki KaishaInventors: Yukio Kurozumi, Makoto Kanbe, Yoshitaka Hibino, Yasuo Minami
-
Publication number: 20110051069Abstract: The method of the present invention includes the steps of (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate; aType: ApplicationFiled: November 9, 2010Publication date: March 3, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Naoshi YAMADA, Hidehiko YAMAGUCHI, Toshihide TSUBATA, Yukio KUROZUMI, Masayuki TSUJI
-
Patent number: 7855774Abstract: The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate;Type: GrantFiled: July 13, 2010Date of Patent: December 21, 2010Assignee: Sharp Kabushiki KaishaInventors: Naoshi Yamada, Hidehiko Yamaguchi, Toshihide Tsubata, Yukio Kurozumi, Masayuki Tsuji
-
Publication number: 20100277683Abstract: The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate;Type: ApplicationFiled: July 13, 2010Publication date: November 4, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Naoshi YAMADA, Hidehiko YAMAGUCHI, Toshihide TSUBATA, Yukio KUROZUMI, Masayuki TSUJI
-
Patent number: 7782437Abstract: The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate;Type: GrantFiled: April 9, 2009Date of Patent: August 24, 2010Assignee: Sharp Kabushiki KaishaInventors: Naoshi Yamada, Hidehiko Yamaguchi, Toshihide Tsubata, Yukio Kurozumi, Masayuki Tsuji
-
Publication number: 20100073619Abstract: A liquid crystal display device (50a) includes: an active matrix substrate (20a) having a plurality of gate lines (1a) extending in parallel with each other; a counter substrate (30a) arranged so as to face the active matrix substrate (20a); a liquid crystal layer (25) interposed between the active matrix substrate (20a) and the counter substrate (30a); and spherical spacers (21) disposed between the active matrix substrate (20a) and the counter substrate (30a) so as to overlap each gate line (1a), for defining a thickness of the liquid crystal layer (25). A protruding wall (9a) is provided over each gate line (1a) of the active matrix substrate (20a) so as to surround the spacers (21).Type: ApplicationFiled: June 6, 2007Publication date: March 25, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Yukio Kurozumi, Makoto Kanbe, Yoshitaka Hibino, Yasuo Minami
-
Publication number: 20100045906Abstract: The present invention has an object to provide an active matrix substrate, a liquid crystal display panel, a liquid crystal display element, a liquid crystal display device, and a substrate for liquid crystal display panel, each capable of suppressing generation of uneven cell gap without increase in a parasitic capacitance of a wiring. The active matrix substrate of the present invention is an active matrix substrate including a spacer on a substrate, wherein the spacer includes a base layer and a covering layer, the base layer being buried in the covering layer.Type: ApplicationFiled: October 12, 2007Publication date: February 25, 2010Inventors: Tsuyoshi Tokuda, Hiroto Akiyama, Akihiro Shoraku, Toshihide Tsubata, Yukio Kurozumi
-
Publication number: 20090279041Abstract: A liquid crystal display device (50a) includes: an active matrix substrate (20a) having a plurality of gate lines (1a) extending in parallel with each other; a counter substrate (30a) provided so as to face the active matrix substrate (20a); a liquid crystal layer (25) provided between the active matrix substrate (20a) and the counter substrate (30a); and spherical spacers (21) provided between the active matrix substrate (20a) and the counter substrate (30a) so as to overlap each gate line (1a), for defining a thickness of the liquid crystal layer (25). A first protruding wall (9a) for surrounding the spacers (21) is provided over each gate layer (1a) of the active matrix substrate (20a), and a second protruding wall (19b) for surrounding the spacers (21) is provided on the counter substrate (30a).Type: ApplicationFiled: June 6, 2007Publication date: November 12, 2009Inventors: Yukio Kurozumi, Makoto Kanbe, Yoshitaka Hibino, Yasuo Minami
-
Publication number: 20090195738Abstract: The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate;Type: ApplicationFiled: April 9, 2009Publication date: August 6, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Naoshi YAMADA, Hidehiko YAMAGUCHI, Toshihide TSUBATA, Yukio KUROZUMI, Masayuki TSUJI
-
Patent number: 7535538Abstract: The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate;Type: GrantFiled: July 13, 2005Date of Patent: May 19, 2009Assignee: Sharp Kabushiki KaishaInventors: Naoshi Yamada, Hidehiko Yamaguchi, Toshihide Tsubata, Yukio Kurozumi, Masayuki Tsuji
-
Publication number: 20090073366Abstract: Due to spacer particles 31, a gap of a predetermined size is provided between a pair of transparent substrates 10, 20 which are arranged parallel and opposite to each other. The spacer particles 31 are arranged on a set surface 19, which is formed on the surface of the TFT substrate 10 that faces the CF substrate 20 and specifically is formed in a grid-like light blocking area 30 thereof. The set surface 19 extends over the substantially entire width of the light blocking area 30, so as to form a flat surface that is substantially at the same level over its entire area. Thereby, the spacer particles 31 are infallibly arranged in the set area 30, and consequently the cell gap of the predetermined size can be reliably secured.Type: ApplicationFiled: March 9, 2007Publication date: March 19, 2009Inventor: Yukio Kurozumi
-
Publication number: 20060012735Abstract: The method of the present invetion includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate; aType: ApplicationFiled: July 13, 2005Publication date: January 19, 2006Inventors: Naoshi Yamada, Hidehiko Yamaguchi, Toshihide Tsubata, Yukio Kurozumi, Masayuki Tsuji