# US 2013/0155368 A1 · Liquid crystal composition, liquid crystal element, and liquid crystal display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155368 A1 - Document ID: US20130155368A1 - Status: Published application - Kind: A1 - Application number: 13/711,940 - Filed: 2012-12-12 - Published: 2013-06-20 - Earliest claimed: 2011-12-16 - Assignees: Semiconductor Energy Laboratory Co., Ltd. - Inventors: Yasuhiro NIIKURA; Tetsuji Ishitani; Tomohiro Tamura - Web page: https://patentgrep.com/patent/US20130155368A1 ## CPC - C09K 19/56: Aligning agents - C09K 19/0275: {Blue phase} - C09K 19/588: {Heterocyclic compounds} - G02F 1/0045: {Liquid crystals characterised by their physical properties} - C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A novel liquid crystal composition that can be used for a variety of liquid crystal devices is provided. A stable liquid crystal element that is driven at low voltage and that withstands physical impact is provided with the use of the novel liquid crystal composition. A highly reliable liquid crystal display device with low power consumption and high display quality is provided with the use of the liquid crystal element. The liquid crystal composition exhibits a blue phase and contains nematic liquid crystal, 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol (abbreviation: ISO-(6OBA)2) represented by the structural formula (100) as a first chiral agent, and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane (abbreviation: R-DOL-Pn) represented by the structural formula (101) as a second chiral agent. ## Claims ### Claim 1 A liquid crystal composition comprising: a liquid crystal; 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol represented by a structural formula (100) as a first chiral agent; and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane represented by a structural formula (101) as a second chiral agent, ### Claim 2 (depends on 1) The liquid crystal composition according to claim 1 further containing a polymerizable monomer and a polymerization initiator. ### Claim 3 (depends on 1) The liquid crystal composition according to claim 1 exhibiting a blue phase. ### Claim 4 (depends on 1) The liquid crystal composition according to claim 1 having a temperature range within which a blue phase appears higher than 3.9° C. and lower than 5.1° C. ### Claim 5 (depends on 1) The liquid crystal composition according to claim 1 having a helical twisting power of 80 μm−1 or higher. ### Claim 6 A liquid crystal element comprising: a first substrate and a second substrate facing each other; a pair of electrodes configured to apply an electric field between the first substrate and the second substrate; and a liquid crystal composition between the first substrate and the second substrate, the liquid crystal composition comprising: a liquid crystal; 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol represented by a structural formula (100) as a first chiral agent; and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane represented by a structural formula (101) as a second chiral agent, ### Claim 7 (depends on 6) The liquid crystal element according to claim 6 further containing a polymer between the first substrate and the second substrate. ### Claim 8 (depends on 6) The liquid crystal element according to claim 6, wherein the liquid crystal composition exhibits a blue phase. ### Claim 9 (depends on 6) The liquid crystal element according to claim 6, wherein the liquid crystal composition has a temperature range within which a blue phase appears higher than 3.9° C. and lower than 5.1° C. ### Claim 10 (depends on 6) The liquid crystal element according to claim 6, wherein the liquid crystal composition has a helical twisting power of 80 μm−1 or higher. ### Claim 11 (depends on 6) The liquid crystal element according to claim 6, wherein a blue phase keeps appearing after a pressing force endurance test. ### Claim 12 (depends on 6) The liquid crystal element according to claim 6, wherein a blue phase keeps appearing after pressing a curved surface of a hemisphere having a diameter of 0.5 mm on one of the substrates with a force of 3 N for about 3 s. ### Claim 13 (depends on 6) The liquid crystal element according to claim 6, wherein a blue phase keeps appearing after pressing a curved surface of a hemisphere having a diameter of 0.5 mm on one of the substrates with a force of 10 N for about 3 s. ### Claim 14 (depends on 6) A liquid crystal display device comprising the liquid crystal element according to claim 6. ### Claim 15 A liquid crystal display module comprising: a first substrate and a second substrate facing each other; a pixel portion comprising a pair of electrodes configured to apply an electric field between the first substrate and the second substrate; a driver circuit configured to drive the pixel portion; a connector configured to connect the driver circuit to an external circuit; and a liquid crystal composition between the first substrate and the second substrate, the liquid crystal composition comprising: a liquid crystal; 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol represented by a structural formula (100) as a first chiral agent; and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane represented by a structural formula (101) as a second chiral agent, ### Claim 16 (depends on 15) The liquid crystal display module according to claim 15 further containing a polymer between the first substrate and the second substrate. ### Claim 17 (depends on 15) The liquid crystal display module according to claim 15, wherein the liquid crystal composition exhibits a blue phase. ### Claim 18 (depends on 15) The liquid crystal display module according to claim 15, wherein the liquid crystal composition has a temperature range within which a blue phase appears higher than 3.9° C. and lower than 5.1° C. ### Claim 19 (depends on 15) The liquid crystal display module according to claim 15, wherein the liquid crystal composition has a helical twisting power of 80 μm−1 or higher. ### Claim 20 (depends on 15) The liquid crystal display module according to claim 15, wherein a blue phase keeps appearing after a pressing force endurance test. ### Claim 21 (depends on 15) The liquid crystal display module according to claim 15, wherein a blue phase keeps appearing after pressing a curved surface of a hemisphere having a diameter of 0.5 mm on one of the substrates with a force of 3 N for about 3 s. ### Claim 22 (depends on 15) The liquid crystal display module according to claim 15, wherein a blue phase keeps appearing after pressing a curved surface of a hemisphere having a diameter of 0.5 mm on one of the substrates with a force of 10 N for about 3 s. ### Claim 23 (depends on 15) A liquid crystal display device comprising the liquid crystal display module according to claim 15.