Patents by Inventor Shigeru Kibe
Shigeru Kibe 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: 9316882Abstract: To minimize color difference during white display, and secure high transmittance in liquid crystal panel driven by FFS mode or the like. Liquid crystal panel 10 has first substrate AR and second substrate CF oppositely arranged, and liquid crystal layer LC interposed between the first and the second substrates, wherein the first substrate has plural signal lines 18 and scanning lines 15 formed in matrix, upper electrode 24 having plural slit-shaped openings 25 divided by the scanning and signal lines, and formed for every sub-pixel, and lower electrode 21 formed with the upper electrode through insulating layer 23, the second substrate has light-shielding layer 28 superimposed with the signal and scanning lines in planar view, and color filter layer 29 formed for every sub-pixel, and the liquid crystal layer includes a mixture of at least one compound having negative dielectric anisotropy and at least one compound having positive dielectric anisotropy.Type: GrantFiled: March 20, 2014Date of Patent: April 19, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Shigeru Kibe, Toshiki Asakura, Yasuhiro Kubo
-
Patent number: 9261740Abstract: To allow drive at low voltage and obtaining high transmittance in liquid crystal panel driven by FFS mode. Liquid crystal panel 10 has first substrate 14 and second substrate 27 oppositely arranged, and liquid crystal layer LC interposed between the first and the second substrates, wherein the first substrate has plural signal lines 18 and scanning lines 15 formed in matrix in mutually insulated state, upper electrode 24 having plural slit-shaped openings 25 divided by the scanning lines and signal lines, and formed for every sub-pixel, and lower electrode 21 formed with the upper electrode through insulating layer 23, the second substrate has light-shielding layer 28 superimposed with the signal lines and scanning lines in planar view, and color filter layer 29 formed for every sub-pixel, and the liquid crystal layer has at least one compound having negative dielectric anisotropy and at least one compound having positive dielectric anisotropy mixed.Type: GrantFiled: March 11, 2014Date of Patent: February 16, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Shigeru Kibe, Toshiki Asakura, Yasuhiro Kubo
-
Publication number: 20140313462Abstract: To minimize color difference during white display, and secure high transmittance in liquid crystal panel driven by FFS mode or the like. Liquid crystal panel 10 has first substrate AR and second substrate CF oppositely arranged, and liquid crystal layer LC interposed between the first and the second substrates, wherein the first substrate has plural signal lines 18 and scanning lines 15 formed in matrix, upper electrode 24 having plural slit-shaped openings 25 divided by the scanning and signal lines, and formed for every sub-pixel, and lower electrode 21 formed with the upper electrode through insulating layer 23, the second substrate has light-shielding layer 28 superimposed with the signal and scanning lines in planar view, and color filter layer 29 formed for every sub-pixel, and the liquid crystal layer includes a mixture of at least one compound having negative dielectric anisotropy and at least one compound having positive dielectric anisotropy.Type: ApplicationFiled: March 20, 2014Publication date: October 23, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: SHIGERU KIBE, TOSHIKI ASAKURA, YASUHIRO KUBO
-
Publication number: 20140313461Abstract: To allow drive at low voltage and obtaining high transmittance in liquid crystal panel driven by FFS mode. Liquid crystal panel 10 has first substrate 14 and second substrate 27 oppositely arranged, and liquid crystal layer LC interposed between the first and the second substrates, wherein the first substrate has plural signal lines 18 and scanning lines 15 formed in matrix in mutually insulated state, upper electrode 24 having plural slit-shaped openings 25 divided by the scanning lines and signal lines, and formed for every sub-pixel, and lower electrode 21 formed with the upper electrode through insulating layer 23, the second substrate has light-shielding layer 28 superimposed with the signal lines and scanning lines in planar view, and color filter layer 29 formed for every sub-pixel, and the liquid crystal layer has at least one compound having negative dielectric anisotropy and at least one compound having positive dielectric anisotropy mixed.Type: ApplicationFiled: March 11, 2014Publication date: October 23, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: SHIGERU KIBE, TOSHIKI ASAKURA, YASUHIRO KUBO
-
Patent number: 8454856Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth. The liquid crystal composition has a nematic phase, wherein the first component contains a specific five rings compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a low viscosity. The liquid crystal display device contains the liquid crystal composition having a nematic phase and the composition thereof.Type: GrantFiled: August 25, 2008Date of Patent: June 4, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 8337963Abstract: A liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, large optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics is provided. An AM device that has short response time, large voltage holding ratio, large contrast ratio, long service life and so forth is provided. The liquid crystal composition has positive dielectric anisotropy and includes a specific four-ring compound having a high maximum temperature of a nematic phase and a large dielectric anisotropy as a first component, a specific four-ring compound having a large positive dielectric anisotropy as a second component, and a specific four-ring compound having a high maximum temperature of a nematic phase as a third component.Type: GrantFiled: October 21, 2009Date of Patent: December 25, 2012Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 8236197Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: GrantFiled: July 23, 2009Date of Patent: August 7, 2012Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 8182885Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal composition having a nematic phase, wherein the first component contains a specific five ring compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a small viscosity, and the third component contains a specific four ring compound having a high maximum temperature.Type: GrantFiled: August 20, 2008Date of Patent: May 22, 2012Assignees: JNC Corporation, Chisso Petrochemical CorporationInventors: Masayuki Saito, Shigeru Kibe
-
Patent number: 8153021Abstract: Disclosed are: a liquid crystal composition which satisfies at least one property selected from a high upper limit temperature in a nematic phase, a low lower limit temperature in a nematic phase, a low viscosity, high optical anisotropy, high dielectric anisotropy, a high specific resistance, high stability against ultraviolet ray, high stability against heat and the like or has a proper balance between at least two properties selected from the above-mentioned properties; and an AM element having a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and the like.Type: GrantFiled: August 25, 2008Date of Patent: April 10, 2012Assignees: JNC Corporation, Chisso Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 8133410Abstract: The invention is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced concerning at least two characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention is to provide a liquid crystal composition having a nematic phase that contains a specific five-membered ring compound having a large optical anisotropy and a large dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component, and a liquid crystal display device containing the composition.Type: GrantFiled: August 20, 2008Date of Patent: March 13, 2012Assignees: JNC Corporation, Chisso Petrochemical CorporationInventors: Masayuki Saito, Shigeru Kibe
-
Patent number: 8110256Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition having a nematic phase contains a specific five-ring compound having a large maximum temperature as the first component, a specific compound having a small viscosity as the second component, and a specific four-ring compound having a high maximum temperature as the third component. The liquid crystal display device contains the liquid crystal composition.Type: GrantFiled: June 23, 2009Date of Patent: February 7, 2012Assignees: JNC Corporation, Chisso Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito, Hiroyuki Tanaka
-
Publication number: 20110261312Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal composition having a nematic phase, wherein the first component contains a specific five ring compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a small viscosity, and the third component contains a specific four ring compound having a high maximum temperature.Type: ApplicationFiled: August 20, 2008Publication date: October 27, 2011Applicants: Chisso Petrochemical Corporatioon, CHISSO CORPORATIONInventors: Masayuki Saito, Shigeru Kibe
-
Publication number: 20110233467Abstract: A liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, large optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics is provided. An AM device that has short response time, large voltage holding ratio, large contrast ratio, long service life and so forthis provided. The liquid crystal composition has positive dielectric anisotropy and includes a specific four-ring compound having a high maximum temperature of a nematic phase and a large dielectric anisotropy as a first component, a specific four-ring compound having a large positive dielectric anisotropy as a second component, and a specific four-ring compound having a high maximum temperature of a nematic phase as a third component.Type: ApplicationFiled: October 21, 2009Publication date: September 29, 2011Applicants: JNC Corporation, Chisso Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 8003175Abstract: A liquid crystal composition having a nematic phase that includes two components, wherein the first component is a specific five-membered ring compound having a large maximum temperature and a large dielectric anisotropy and the second component is a specific compound having a small viscosity, and a liquid crystal display device containing the composition.Type: GrantFiled: June 23, 2009Date of Patent: August 23, 2011Assignee: JNC CorporationInventors: Shigeru Kibe, Masayuki Saito, Hiroyuki Tanaka
-
Publication number: 20110133123Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: ApplicationFiled: July 23, 2009Publication date: June 9, 2011Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Shigeru Kibe, Masayuki Saito
-
Publication number: 20110116031Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth. The liquid crystal composition has a nematic phase, wherein the first component contains a specific five rings compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a low viscosity. The liquid crystal display device contains the liquid crystal composition having a nematic phase and the composition thereof.Type: ApplicationFiled: August 25, 2008Publication date: May 19, 2011Applicant: CHISSO CORPORATIONInventors: Shigeru Kibe, Masayuki Saito
-
Publication number: 20110095228Abstract: The invention is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced concerning at least two characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention is to provide a liquid crystal composition having a nematic phase that contains a specific five-membered ring compound having a large optical anisotropy and a large dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component, and a liquid crystal display device containing the composition.Type: ApplicationFiled: August 20, 2008Publication date: April 28, 2011Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Shigeru Kibe
-
Publication number: 20110062383Abstract: Disclosed are: a liquid crystal composition which satisfies at least one property selected from a high upper limit temperature in a nematic phase, a low lower limit temperature in a nematic phase, a low viscosity, high optical anisotropy, high dielectric anisotropy, a high specific resistance, high stability against ultraviolet ray, high stability against heat and the like or has a proper balance between at least two properties selected from the above-mentioned properties; and an AM element having a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and the like.Type: ApplicationFiled: August 25, 2008Publication date: March 17, 2011Applicant: CHISSO CORPORATIONInventors: Shigeru Kibe, Masayuki Saito
-
Patent number: 7879414Abstract: A liquid crystal composition having a nematic phase that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) to (1-3), and the second component is at least one compound selected from the group of compounds represented by formula (2): wherein R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R2 and R3 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A, ring B and ring C are each independently 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene; Z1 and Z2 are each independently a single bond, ethylene, carbonyloxy or difluoromethyleneoxy, provided that at least one of Z1 and Z2 is difluoromethyleneoxy; Z3 and Z4 are each independently a single bond, ethylene or carbonyloxy; X1Type: GrantFiled: March 13, 2009Date of Patent: February 1, 2011Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Masayuki Saito, Shigeru Kibe, Norikatsu Hattori, Hiroyuki Tanaka
-
Patent number: 7767278Abstract: A liquid crystal composition having a nematic phase that includes two components, wherein the first component is a specific compound having negatively large dielectric anisotropy, and the second component is a specific two-ring compound having especially small viscosity, and a liquid crystal display device including the composition.Type: GrantFiled: March 10, 2008Date of Patent: August 3, 2010Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Shigeru Kibe, Norikatsu Hattori, Masayuki Saito