LIQUID CRYSTAL COMPOSITION CONTAINING POLYMERIZABLE COMPOUND AND APPLICATION OF LIQUID CRYSTAL COMPOSITION

Abstract

A liquid crystal composition containing a polymerizable compound and an application of the liquid crystal composition. The liquid crystal composition comprises a nematic phase liquid crystal composition and at least contains one or more polymerizable compounds represented by general formula (I). Compared with existing liquid crystal compositions, the polymerizable compound in the liquid crystal composition has the advantages of faster polymerization rate, smaller pretilt angle change, higher conversion rate, and less residue, the problem that existing PSVA-type liquid crystal display is bad is mitigated to a large extent, the amount of pretilt angle change is reduced, and the area Mura problem is solved.

##STR00001##

Claims

1. A liquid crystal composition, wherein it comprises a nematic phase liquid crystal composition and at least contains one or more polymerizable compounds represented by general formula I: ##STR00529## wherein L1, L2, L3, L4, L5, and L6 each independently represent H, —F, —Cl, —CH3, —C2H5, —OCH3, —OC2H5, —CF3 or OCF3, and L3 and L4 are not both H, and at least one of L1, L2, L5, and L6 is —CH3 or —OCH3; the P1 and P2 each independently represent an acrylate group, a methacrylate group, a fluoroacrylate group, a chloroacrylate group, an ethyleneoxy group, an oxetanyl group, or an epoxy group; the Z1 and Z2 each independently represent a single bond, —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O—, —CH═N—, —N═CH—, —N═N—, a C1-C12 alkylene group, or a C2-C12 alkenyl group, wherein one or more hydrogen atoms in the C1-C12 alkylene group or the C2-C12 alkenyl group may each independently be substituted by F, C1 or CN, and one or more non-adjacent —CH2—groups may each independently be replaced by—O—, —S—, —NH—, —CO—, COO—, —OCO—, —OCOO—, —SCO—, —COS— or —C═C— in a way that is not directly connected to each other.

2. The liquid crystal composition according to claim 1, wherein L1, L2, L3, L4, L5, and L6 each independently represent H, —F, —CH3 or —OCH3, and L3 and L4 are not both H.

3. The liquid crystal composition according to claim 2, wherein P1 and P2 each independently represent a methacrylate group, an acrylate group, a fluoroacrylate group or a chloroacrylate group; preferably, P1 and P2 each independently represent a methacrylate group or an acrylate group; and/or Z1 and Z2 each independently represent a single bond, —O—, —S—, —CO—O—, —O—CO—, a C1-C6 alkylene group or a C2-C6 alkenyl group, wherein one or more hydrogen atoms in the C1-C6 alkylene group or the C2-C6 alkenyl group may each independently be substituted by F, and one or more non-adjacent —CH2— groups may each independently be replaced by—O— in a way that is not directly connected to each other; preferably, Z1 and Z2 each independently represent a single bond, —O—, a C1-C6 alkylene group or an alkoxy group.

4. The liquid crystal composition according to claim 3, wherein the compound represented by general formula I is selected from one or more of I1 - I28: ##STR00530## ##STR00531## ##STR00532## ##STR00533## ##STR00534## ##STR00535## ##STR00536## ##STR00537## ##STR00538## ##STR00539## ##STR00540## ##STR00541## ##STR00542## ##STR00543## ##STR00544## ##STR00545## ##STR00546## ##STR00547## ##STR00548## ##STR00549## ##STR00550## ##STR00551## ##STR00552## ##STR00553## ##STR00554## ##STR00555## ##STR00556## ##STR00557## preferably, the compound represented by general formula I is selected from one or more of I1 - I5.

5. The liquid crystal composition according to claim 1, wherein the compound represented by general formula I in the liquid crystal composition has a mass fraction of 0.01-5%, preferably 0.05-1%, further preferably 0.1-0.5%, and more preferably 0.15-0.32%.

6. The liquid crystal composition according to claim 5, wherein the nematic phase liquid crystal composition at least comprises one or more compounds represented by general formula II: ##STR00558## wherein R.sub.1 and R.sub.2 each independently represent a C.sub.1-C.sub.12 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.12 linear alkenyl group; A.sub.1 and A.sub.2 each independently represent a trans-1,4-cyclohexyl group or a 1,4-phenylene group; Z1 is a single bond, —CH.sub.2CH.sub.2— or —CH.sub.2O—; a is 0 or 1; and the liquid crystal composition at least comprises a compound represented by general formula III: ##STR00559## wherein R.sub.3 and R.sub.4 each independently represent a C.sub.1-C.sub.12 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.12 linear alkenyl group; A.sub.3 and A.sub.4 each independently represent a trans-1,4-cyclohexyl group or a 1,4-phenylene group.

7. The liquid crystal composition according to claim 6, wherein the compound represented by general formula II is selected from one or more of IIA - IIF: ##STR00560## ##STR00561## ##STR00562## ##STR00563## ##STR00564## ##STR00565## preferably, the compound represented by general formula II is selected from one or more of formulas IIA-1 - IIF-16: ##STR00566## ##STR00567## ##STR00568## ##STR00569## ##STR00570## ##STR00571## ##STR00572## ##STR00573## ##STR00574## ##STR00575## ##STR00576## ##STR00577## ##STR00578## ##STR00579## ##STR00580## ##STR00581## ##STR00582## ##STR00583## ##STR00584## ##STR00585## ##STR00586## ##STR00587## ##STR00588## ##STR00589## ##STR00590## ##STR00591## ##STR00592## ##STR00593## ##STR00594## ##STR00595## ##STR00596## ##STR00597## ##STR00598## ##STR00599## ##STR00600## ##STR00601## ##STR00602## ##STR00603## ##STR00604## ##STR00605## ##STR00606## ##STR00607## ##STR00608## ##STR00609## ##STR00610## ##STR00611## ##STR00612## ##STR00613## ##STR00614## ##STR00615## ##STR00616## ##STR00617## ##STR00618## ##STR00619## ##STR00620## ##STR00621## ##STR00622## ##STR00623## ##STR00624## ##STR00625## ##STR00626## ##STR00627## ##STR00628## ##STR00629## ##STR00630## ##STR00631## ##STR00632## ##STR00633## ##STR00634## ##STR00635## ##STR00636## ##STR00637## ##STR00638## ##STR00639## ##STR00640## ##STR00641## ##STR00642## ##STR00643## ##STR00644## ##STR00645## ##STR00646## ##STR00647## ##STR00648## ##STR00649## ##STR00650## ##STR00651## ##STR00652## ##STR00653## ##STR00654## ##STR00655## ##STR00656## ##STR00657## ##STR00658## ##STR00659## ##STR00660## ##STR00661## ##STR00662## ##STR00663## ##STR00664## ##STR00665## ##STR00666## ##STR00667## ##STR00668## ##STR00669## ##STR00670## ##STR00671## ##STR00672## ##STR00673## ##STR00674## ##STR00675## ##STR00676## ##STR00677## ##STR00678## ##STR00679## ##STR00680## ##STR00681## ##STR00682## ##STR00683## ##STR00684## ##STR00685## ##STR00686## ##STR00687## ##STR00688## ##STR00689## ##STR00690## ##STR00691## ##STR00692## ##STR00693## ##STR00694## ##STR00695## ##STR00696## ##STR00697## ##STR00698## ##STR00699## ##STR00700## ##STR00701## ##STR00702## ##STR00703## ##STR00704## ##STR00705## ##STR00706## ##STR00707## ##STR00708## ##STR00709## ##STR00710## ##STR00711## ##STR00712## ##STR00713## ##STR00714## ##STR00715## ##STR00716## ##STR00717## ##STR00718## ##STR00719## ##STR00720## ##STR00721## ##STR00722## ##STR00723## ##STR00724## ##STR00725## ##STR00726## ##STR00727## ##STR00728## ##STR00729## ##STR00730## ##STR00731## ##STR00732## ##STR00733## ##STR00734## ##STR00735## further preferably, the compound represented by general formula II is selected from one or more of formulas IIA-9 - IIA-24, IIB-19 - IIB-38, IIC-9 - IIC-24, IID-9 - IID-24, IIE-1 - IIE-20, and IIF-1 - IIF-16; most preferably, the compound represented by general formula II is selected from one or more of formulas IIA-13 - IIA-24, IIB-23 - IIB-38, IIC-13 - IIC-24, IID-13 - IID-24, IIE-1, IIE-2, IIE-5, IIE-6, IIE-9, IIE-10, IIE-13, IIE-14, IIE-17, IIE-18, IIF-1, IIF-2, IIF-5, IIF-6, IIF-9, IIF-10, IIF-13 and IIF-14; and/or the compound represented by general formula III is selected from one or more of formulas IIIA - IIIC: ##STR00736## ##STR00737## ##STR00738## preferably, the compound represented by general formula III is selected from one or more of formulas IIIA1 - IIIC24: ##STR00739## ##STR00740## ##STR00741## ##STR00742## ##STR00743## ##STR00744## ##STR00745## ##STR00746## ##STR00747## ##STR00748## ##STR00749## ##STR00750## ##STR00751## ##STR00752## ##STR00753## ##STR00754## ##STR00755## ##STR00756## ##STR00757## ##STR00758## ##STR00759## ##STR00760## ##STR00761## ##STR00762## ##STR00763## ##STR00764## ##STR00765## ##STR00766## ##STR00767## ##STR00768## ##STR00769## ##STR00770## ##STR00771## ##STR00772## ##STR00773## ##STR00774## ##STR00775## ##STR00776## ##STR00777## ##STR00778## ##STR00779## ##STR00780## ##STR00781## ##STR00782## ##STR00783## ##STR00784## ##STR00785## ##STR00786## ##STR00787## ##STR00788## ##STR00789## ##STR00790## ##STR00791## ##STR00792## ##STR00793## ##STR00794## ##STR00795## ##STR00796## ##STR00797## ##STR00798## ##STR00799## ##STR00800## ##STR00801## ##STR00802## ##STR00803## ##STR00804## ##STR00805## ##STR00806## ##STR00807## ##STR00808## ##STR00809## ##STR00810## ##STR00811## ##STR00812## ##STR00813## ##STR00814## ##STR00815## ##STR00816## ##STR00817## ##STR00818## ##STR00819## ##STR00820## ##STR00821## ##STR00822## ##STR00823## ##STR00824## ##STR00825## further preferably, the compound represented by general formula III is selected from one or more of formulas IIIA-1 - IIIA-24, IIIB-1 - IIIB-24, and IIIC-1 - IIIC-22; more preferably, the compound represented by general formula III is selected from one or more of formulas IIIA-1 - IIIA-12, IIIB-17 - IIIB-24, IIIC-1 - IIIC-4, and IIIC-15 - IIIC-18.

8. The liquid crystal composition according to claim 1, wherein the nematic phase liquid crystal composition further comprises one or more compounds represented by general formula IV: ##STR00826## wherein R.sub.5 and R.sub.6 each independently represent a C.sub.1-C.sub.12 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.12 linear alkenyl group, halogen; L7, L8, and L9 each independently represent —H, —F, —CH3 or —OCH3; preferably, the compound represented by general formula IV is selected from one or more of IVA - IVD: ##STR00827## ##STR00828## ##STR00829## ##STR00830## wherein R.sub.5 and R.sub.6 each independently represent a C.sub.1-C.sub.12 linear alkyl group, a linear alkoxy group, a C.sub.2-C.sub.12 linear alkenyl group or halogen; further preferably, the compound represented by general formula IV is selected from one or more of IVA1 - IVD24: ##STR00831## ##STR00832## ##STR00833## ##STR00834## ##STR00835## ##STR00836## ##STR00837## ##STR00838## ##STR00839## ##STR00840## ##STR00841## ##STR00842## ##STR00843## ##STR00844## ##STR00845## ##STR00846## ##STR00847## ##STR00848## ##STR00849## ##STR00850## ##STR00851## ##STR00852## ##STR00853## ##STR00854## ##STR00855## ##STR00856## ##STR00857## ##STR00858## ##STR00859## ##STR00860## ##STR00861## ##STR00862## ##STR00863## ##STR00864## ##STR00865## ##STR00866## ##STR00867## ##STR00868## ##STR00869## ##STR00870## ##STR00871## ##STR00872## ##STR00873## ##STR00874## ##STR00875## ##STR00876## ##STR00877## ##STR00878## ##STR00879## ##STR00880## ##STR00881## ##STR00882## ##STR00883## ##STR00884## ##STR00885## ##STR00886## ##STR00887## ##STR00888## ##STR00889## ##STR00890## ##STR00891## ##STR00892## ##STR00893## ##STR00894## ##STR00895## ##STR00896## ##STR00897## ##STR00898## ##STR00899## ##STR00900## ##STR00901## ##STR00902## ##STR00903## more preferably, the compound represented by general formula IV is selected from one or more of IVA-5, IVA-9, IVA-14, IVA-15, IVB-5 - IVB-8, IVB-6 - IVB-10, and IVD-21 - IVD-24; and/or the nematic phase liquid crystal composition further comprises one or more compounds represented by general formula V: ##STR00904## wherein R.sub.7 and R.sub.8 each independently represent a C.sub.1-C.sub.12 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.12 linear alkenyl group; A.sub.5 each independently represents a trans-1,4-cyclohexyl group or a 1,4-phenylene group; preferably, the compound represented by general formula V is selected from one or more of VA - VB: ##STR00905## ##STR00906## wherein R.sub.7 and R.sub.8 each independently represent a C.sub.1-C.sub.7 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.7 linear alkenyl group; further preferably, the compound represented by general formula V is selected from one or more of VA1 - VB63: ##STR00907## ##STR00908## ##STR00909## ##STR00910## ##STR00911## ##STR00912## ##STR00913## ##STR00914## ##STR00915## ##STR00916## ##STR00917## ##STR00918## ##STR00919## ##STR00920## ##STR00921## ##STR00922## ##STR00923## ##STR00924## ##STR00925## ##STR00926## ##STR00927## ##STR00928## ##STR00929## ##STR00930## ##STR00931## ##STR00932## ##STR00933## ##STR00934## ##STR00935## ##STR00936## ##STR00937## ##STR00938## ##STR00939## ##STR00940## ##STR00941## ##STR00942## ##STR00943## ##STR00944## ##STR00945## ##STR00946## ##STR00947## ##STR00948## ##STR00949## ##STR00950## ##STR00951## ##STR00952## ##STR00953## ##STR00954## ##STR00955## ##STR00956## ##STR00957## ##STR00958## ##STR00959## ##STR00960## ##STR00961## ##STR00962## ##STR00963## ##STR00964## ##STR00965## ##STR00966## ##STR00967## ##STR00968## ##STR00969## ##STR00970## ##STR00971## ##STR00972## ##STR00973## ##STR00974## ##STR00975## ##STR00976## ##STR00977## ##STR00978## ##STR00979## ##STR00980## ##STR00981## ##STR00982## ##STR00983## ##STR00984## ##STR00985## ##STR00986## ##STR00987## ##STR00988## ##STR00989## ##STR00990## ##STR00991## ##STR00992## ##STR00993## ##STR00994## ##STR00995## ##STR00996## ##STR00997## ##STR00998## ##STR00999## ##STR01000## ##STR01001## ##STR01002## ##STR01003## ##STR01004## ##STR01005## ##STR01006## ##STR01007## ##STR01008## ##STR01009## ##STR01010## ##STR01011## ##STR01012## ##STR01013## ##STR01014## ##STR01015## ##STR01016## ##STR01017## ##STR01018## ##STR01019## ##STR01020## ##STR01021## ##STR01022## ##STR01023## ##STR01024## ##STR01025## ##STR01026## ##STR01027## ##STR01028## ##STR01029## ##STR01030## ##STR01031## ##STR01032## ##STR01033## ##STR01034## ##STR01035## more preferably, the compound represented by general formula V is selected from one or more of VA-39 - VA-44, and VB-39 - VB-48; and/or the liquid crystal composition further comprises one or more antioxidants represented by general formula VI: ##STR01036## wherein R.sub.9 each independently represents a C.sub.1-C.sub.7 linear alkyl group, a linear alkoxy group or a C.sub.2-C.sub.7 linear alkenyl group; A.sub.6 each independently represents a trans-1,4-cyclohexyl group or a 1,4-phenylene group, and c is 0 or 1; preferably, the compound represented by the general formula VI is selected from one or more of VI-1 - VI-2: ##STR01037## ##STR01038##

9. The liquid crystal composition according to claim 1, wherein the nematic phase liquid crystal composition comprises the following components by mass percentage: (1) 1-80% of the compound represented by general formula II; (2) 1-70% of the compound represented by general formula III; (3) 0-25% of the compound represented by general formula IV; and (4) 0-25% of the compound represented by general formula V; preferably, the liquid crystal compound comprises the following components by mass percentage: (1) 5-70% of the compound represented by general formula II; (2) 20-60% of the compound represented by general formula III; (3) 0-15% of the compound represented by general formula IV; and (4) 0-15% of the compound represented by general formula V; more preferably, the liquid crystal compound comprises the following components by mass percentage: (1) 10-70% of the compound represented by general formula II; (2) 25-60% of the compound represented by general formula III; (3) 0-10% of the compound represented by general formula IV; and (4) 0-10% of the compound represented by general formula V; particularly preferably, the liquid crystal compound comprises the following components by mass percentage: (1) 20-70% of the compound represented by general formula II; (2) 20-50% of the compound represented by general formula III; (3) 0-6% of the compound represented by general formula IV; and (4) 0-9% of the compound represented by general formula V.

10. Use of the liquid crystal composition according to claim 1, in a VA-type liquid crystal display device, preferably in a PSVA-type liquid crystal display device.

Description

DETAILED DESCRIPTION OF EMBODIMENTS

[0060] The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0061] Unless otherwise indicated, the percentage in the present invention is weight percentage; the temperature unit is degrees Celsius; Δn represents optical anisotropy (25° C.); ε.sub.// and ε.sub.⊥ represent the parallel and vertical dielectric constants (25° C., 1000 Hz), respectively; Δ.sub.ε represents dielectric anisotropy (25° C., 1000 Hz); γ1 represents rotational viscosity (mPa.s, 25° C.); Cp represents the clearing point (°C) of the liquid crystal composition; K.sub.11, K.sub.22 and K.sub.33 represent splay, twist and bend elastic constants (pN, 25° C.), respectively. ρ represents resistivity (Ω.Math.cm), and the test condition is 25 ± 2° C.

[0062] In each of the following examples, the group structures in the liquid crystal compound are represented by the codes shown in Table 1.

TABLE-US-00001 Group structure code of the liquid crystal compound Group Code Group name [00514] C 1,4-cyclohexyl [00515] P 1,4-phenylene [00516] G 3-fluoro-1,4-phenylene [00517] D 2-fluoro-1,4-phenylene [00518] U 2,6-difluoro-1,4-phenylene [00519] W 2,3-difluoro-1,4-phenylene [00520] K 2,-fluoro-3,methyl-1,4-phenylen e —O— O Oxygen substituent —F F Fluorine substituent —CF.sub.3 CF.sub.3 Trifluoromethyl C.sub.nH.sub.2n+1 or C.sub.mH.sub.2m+1 n or m Alkyl —CF.sub.2O— Q Difluoromethoxy bridge bond —OCF.sub.2H OCF.sub.2H Difluoromethoxy [00521] A 2,5-tetrahydropyran [00522] E 2,6-dioxo-1,4-dioxane —(CH.sub.2).sub.n— n Alkylene [00523] T Acetylenic bond [00524] V Alkenyl

[0063] Taking the following compound structures as an example:

##STR00525##

Represented as: 3PWO2

##STR00526##

Represented as: 3CCWO2

[0064] In each of the following examples, the liquid crystal compositions are all prepared by a thermal dissolution method, comprising the following steps of: weighing liquid crystal compounds in percentage by weight using a balance, wherein the order of weighing and addition is not particularly specified, and usually, the weighing and mixing are carried out successively in order of the melting points of the liquid crystal compounds from high to low; heating and stirring same at 60-100° C. so that each component is melted uniformly; then subjecting same to filtration and rotary evaporation; and finally performing encapsulation to obtain a target sample.

[0065] The weight percentage of each component in the nematic phase liquid crystal composition and the performance parameters of the liquid crystal composition are shown in the following tables.

Nematic Phase Liquid Crystal Composition LC1

[0066] TABLE-US-00002 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.0985 II 3CPWO2 10 ε.sub.// 3.6 II 2CC1OWO2 7 ε.sub.⊥ 6.9 II 3CC1OWO2 15 Δε -3.3 II 3C1OWO2 12 Cp 74.7 III 5PP1 11 γ1 102.1 III 3CPO2 5 K.sub.11 15.2 III 5CC3 18 K.sub.22 7.6 III 4CC3 7 K.sub.33 15.0 III 3CC2 6 V 3CPP2 5

Nematic Phase Liquid Crystal Composition LC2

[0067] TABLE-US-00003 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CCWO3 7 Δn 0.0965 II 3CWO2 14 ε.sub.// 3.6 II 3CCWO2 10 ε.sub.⊥ 6.9 II 3PWO2 10 Δε -3.3 II 3CCWO1 8 Cp 77.4 II 4PWO2 6.5 γ1 5.8 III 3CC1V1 8 K.sub.11 14.3 III 5CC3 10.5 K.sub.22 7.2 III 4CC3 6 K.sub.33 15.6 III 3CC2 6 IV 2PWP1 5 V 3CCP1 9

Nematic Phase Liquid Crystal Composition LC3

[0068] TABLE-US-00004 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.1002 II 3CPWO2 10.5 ε.sub.// 3.6 II 2CC1OWO2 7 ε.sub.⊥ 6.9 II 3CC1OWO2 15 Δε -3.3 II 3C1OWO2 12 Cp 75 III 5PP1 15 γ1 97.9 III 3CPO2 4 K.sub.11 15.1 III 5CC3 18.5 K.sub.22 7.6 III 4CC3 6 K.sub.33 15.4 V 3CCP1 8

Nematic Phase Liquid Crystal Composition LC4

[0069] TABLE-US-00005 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.1090 II 3CPWO2 10 ε.sub.// 3.6 II 2CC1OWO2 8 ε.sub.⊥ 3.9 II 3CC1OWO2 15 Δε -3.3 II 3C1OWO2 11 Cp 76 III 3PP1 15 γ1 99 III 3CPO2 4 K.sub.11 15.0 III 5CC3 18.5 K.sub.22 7.5 III 4CC3 6 K.sub.33 15.4 V 3CPP1 8.5

Nematic Phase Liquid Crystal Composition LC5

[0070] TABLE-US-00006 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 7 Δn 0.1080 II 3CPWO2 10 ε.sub.// 3.2 II 3CCWO2 5 ε.sub.⊥ 4.1 II 2CC1OWO2 7 Δε -3.9 II 3CC1OWO2 15 Cp 72 II 2C1OWO2 1 γ1 95 II 3C1OWO2 11 K.sub.11 14.8 III 3PP1 13 K.sub.22 7.4 III 3CPO1 4 K.sub.33 15.6 III 5CC3 15 III 4CC3 8 III 3CC2 4

Nematic Phase Liquid Crystal Composition LC6

[0071] TABLE-US-00007 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.1088 II 3CPWO2 9 ε.sub.// 3.5 II 2CC1OWO2 8 ε.sub.⊥ 3.9 II 3CC1OWO2 15 Δε -3.4 II 3C1OWO2 11 Cp 74 III 3PP1 15 γ1 98 III 3CPO2 4 K.sub.11 14.8 III 5CC3 18.5 K.sub.22 7.4 III 4CC3 6 K.sub.33 15.4 V 3CPP1 8.5 V 3CPP2 1

Nematic Phase Liquid Crystal Composition LC7

[0072] TABLE-US-00008 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 2 Δn 0.1040 II 3CPWO2 11.5 ε.sub.// 3.4 II 3CC1OWO2 14 ε.sub.⊥ 5.8 II 3C1OWO2 11.5 Δε -2.4 III 5PP1 13 Cp 76.5 III 3CPO1 5.5 γ1 89.3 III 5CC3 15 K.sub.11 15.1 III 4CC3 10 K.sub.22 7.6 III 3CC2 5 K.sub.33 15.2 V 3CPP1 8.5 V 3CPP2 4

Nematic Phase Liquid Crystal Composition LC8

[0073] TABLE-US-00009 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 3 Δn 0.1020 II 3CPWO2 10 ε.sub.// 3.5 II 2CC1OWO2 8 ε.sub.⊥ 5.8 II 3CC1OWO2 15 Δε -2.3 II 3C1OWO2 11 Cp 75.5 III 3PP1 12 γ1 81.2 III 3CPO1 4 K.sub.11 14.6 III 5CC3 18.5 K.sub.22 7.3 III 4CC3 7 K.sub.33 15.2 III 3CC2 7 V 3CPP1 4.5

Nematic Phase Liquid Crystal Composition LC10

[0074] TABLE-US-00010 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 5 Δn 0.1060 II 3CPWO2 10 ε.sub.// 3.5 II 2CC1OWO2 5 ε.sub.⊥ 6.9 II 3CC1OWO2 15 Δε -3.4 II 3C1OWO2 12 Cp 77 III 5PP1 14 γ1 102 III 3CPO2 3 K.sub.11 15.2 III 5CC3 18 K.sub.22 7.6 III 4CC3 6 K.sub.33 15.4 III 3CC2 4 V 3CPP2 8

Nematic Phase Liquid Crystal Composition LC11

[0075] TABLE-US-00011 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 8 Δn 0.1080 II 3CPWO2 10 ε.sub.// 3.3 II 3CCWO2 5 ε.sub.⊥ 6.9 II 2CC1OWO2 6 Δε -3.6 II 3CC1OWO2 13 Cp 75 II 3C1OWO1 4 γ1 96.0 II 3C1OWO2 12 K.sub.11 14.8 III 5PP1 13 K.sub.22 7.4 III 3CPO2 6 K.sub.33 14.9 III 5CC3 15 III 4CC3 2 V 3CPP2 6

Nematic Phase Liquid Crystal Composition LC12

[0076] TABLE-US-00012 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 3 Δn 0.1040 II 3CPWO2 10 ε.sub.// 3.6 II 2CC1OWO2 7 ε.sub.⊥ 6.9 II 3CC1OWO2 15 Δε -3.3 II 3C1OWO2 12 Cp 73 III 5PP1 7 γ1 88.0 III 3CPO2 6 K.sub.11 14.6 III 5CC3 18 K.sub.22 7.3 III 4CC3 6 K.sub.33 14.8 III 3CC2 7 IV 3PGKF 5 V 3CPP2 4

Nematic Phase Liquid Crystal Composition LC13

[0077] TABLE-US-00013 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CPWO2 11 Δn 0.1060 II 3CC1OWO2 14 ε.sub.// 3.4 II 3C1OWO2 12 ε.sub.⊥ 6.9 III 5PPO1 6 Δε -3.5 III 3CPO2 10 Cp 74.5 III 5CC3 15 γ1 102.1 III 4CC3 9 K.sub.11 15.2 III 3CC2 5 K.sub.22 7.6 III 3PPO1 6 K.sub.33 15.4 V 3CPP1 6 V 3CPP2 6

Nematic Phase Liquid Crystal Composition LC14

[0078] TABLE-US-00014 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CPWO2 11 Δn 0.1080 II 3CC1OWO2 14 ε.sub.// 3.6 II 3C1OWO2 12 ε.sub.⊥ 6.9 III 5PP1 7 Aε -3.3 III 3CPO2 10 Cp 77.5 III 5CC3 15 γ1 99.1 III 4CC3 9 K.sub.11 14.8 III 3CC2 5 K.sub.22 7.4 IV 3PGKF 5 K.sub.33 15.4 V 3CPP1 6 V 3CPP2 6

Nematic Phase Liquid Crystal Composition LC15

[0079] TABLE-US-00015 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 3 Δn 0.1065 II 3CPWO2 10.5 ε.sub.// 3.4 II 2CC1OWO2 7 ε.sub.⊥ Sj. 6.8 II 3CC1OWO2 15 Δε -3.4 II 3C1OWO2 12 Cp 75.5 III 5PP1 7 γ1 96.1 III 3CPO2 6 K.sub.11 14.5 III 5CC3 18 K.sub.22 7.3 III 4CC3 6 K.sub.33 15.1 III 3CC2 7 IV 3PGKF 5 V 3CPP2 3.5

Nematic Phase Liquid Crystal Composition LC16

[0080] TABLE-US-00016 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 3 Δn 0.1075 II 3CPWO2 10 ε.sub.// 3.5 II 2CC1OWO2 7 ε.sub.⊥ 6.8 II 3CC1OWO2 15 Δε -3.3 II 3C1OWO2 12 Cp 74.5 III 5PPO1 6 γ1 94.1 III 3CPO2 7 K.sub.11 14.5 III 5CC3 18 K.sub.22 7.3 III 4CC3 6 K.sub.33 15.1 III 3CC2 7 III 3PPO1 6 V 3CPP2 3

Nematic Phase Liquid Crystal Composition LC17

[0081] TABLE-US-00017 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 8 Δn 0.1015 II 3CPWO2 8.5 ε.sub.// 3.2 II 3CWO2 16 ε.sub.⊥ 6.6 II 5CWO2 8 Δε -3.4 II 3CCWO2 11 Cp 78.5 III 3CC2 6 γ1 92.1 III 3CPO1 5 K.sub.11 14.3 III 5CC3 18 K.sub.22 7.7 III 4CC3 9 K.sub.33 15.2 V 3CPP1 2.5 V 3CPP2 8

Nematic Phase Liquid Crystal Composition LC18

[0082] TABLE-US-00018 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 10 Δn 0.1115 II 3CWO2 15 ε.sub.// 3.4 II 5CWO2 5 ε.sub.⊥ 6.8 II 2CCWO2 10 Δε -3.4 II 3CCWO2 11 Cp 78.5 III 5CC3 18 γ1 92.1 III 4CC3 8 K.sub.11 13.8 III 3CC2 4 K.sub.22 6.9 III 5PP1 3.5 K.sub.33 14.8 III 3CPO1 4.5 V 3CPP1 3 V 3CPP2 8

Nematic Phase Liquid Crystal Composition LC19

[0083] TABLE-US-00019 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CCWO3 7 Δn 0.1065 II 3CWO2 14 ε.sub.// 3.2 II 3CCWO2 10 ε.sub.⊥ 6.6 II 1PWO2 5 Δε -3.4 II 3CCWO1 8 Cp 72.5 II 4PWO2 6.5 γ1 91.1 II 1PWO4 5 K.sub.11 14.8 III 3CC1V1 8 K.sub.22 7.4 III 5CC3 10.5 K.sub.33 15.3 III 4CC3 6 III 3CC2 6 IV 2PWP1 5 V 3CCP1 9

Nematic Phase Liquid Crystal Composition LC20

[0084] TABLE-US-00020 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CCWO3 7 Δn 0.1045 II 3CWO2 14 ε.sub.// 3.2 II 3CCWO2 10 ε.sub.⊥ 6.5 II 1PWO2 8.5 Δε -3.3 II 3CCWO1 8 Cp 76.5 II 1PWO4 8 γ1 91.1 III 3CC1V1 8 K.sub.11 14.6 III 5CC3 10.5 K.sub.22 7.3 III 4CC3 6 K.sub.33 15.6 III 3CC2 6 IV 2PWP1 5 V 3CCP1 9

Nematic Phase Liquid Crystal Composition LC21

[0085] TABLE-US-00021 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.1005 II 3CPWO2 10.5 ε.sub.// 3.2 II 2CC1OWO2 7 ε.sub.⊥ 6.6 II 1PWO4 7 Δε -3.4 II 3C1OWO2 12 Cp 69.5 II 1PWO2 8 γ1 94.1 III 5PP1 15 K.sub.11 13.8 III 3CPO2 4 K.sub.22 6.9 III 5CC3 18.5 K.sub.33 14.5 III 4CC3 6 V 3CCP1 8

Nematic Phase Liquid Crystal Composition LC22

[0086] TABLE-US-00022 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 2CPWO2 4 Δn 0.1001 II 3CPWO2 10.5 ε.sub.// 3.0 II 2CC1OWO2 7 ε.sub.⊥ 6.3 II 1PWO4 5 Δε -3.3 II 3C1OWO2 12 Cp 68.5 II 1PWO2 5 γ1 89.1 III 5PP1 15 K.sub.11 13.6 III 3CPO2 4 K.sub.22 6.8 III 5CC3 18.5 K.sub.33 14.2 III 4CC3 11 V 3CCP1 8

Nematic Phase Liquid Crystal Composition LC24

[0087] TABLE-US-00023 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CCWO3 7 Δn 0.1041 II 3CWO2 14 ε.sub.// 3.3 II 3CCWO2 10 ε.sub.⊥ 6.5 II 3PWO2 10 Δε -3.2 II 3CCWO1 8 Cp 69.5 II 4PWO2 6.5 γ1 95.1 III 3CC1V1 8 K.sub.11 14.6 III 5CC3 10.5 K.sub.22 7.3 III 4CC3 6 K.sub.33 15.2 III 3CC2 6 IV 3PDDF 5 V 3CCP1 9

Nematic Phase Liquid Crystal Composition LC25

[0088] TABLE-US-00024 Percentages by weight of each component and performance parameters of the liquid crystal composition Category Compound code Percentage by weight (%) Performance parameter Parameter value II 3CCWO3 7 Δn 0.1038 II 3CWO2 14 ε.sub.// 3.2 II 3CCWO2 10 ε.sub.⊥ 6.3 II 3PWO2 10 Δε -3.1 II 3CCWO1 8 Cp 71.5 II 4PWO2 6.5 γ1 91.1 III 3CC1V1 8 K.sub.11 14.2 III 5CC3 10.5 K.sub.22 7.1 III 4CC3 6 K.sub.33 14.6 III 3CC2 6 IV 5PDP2 5 V 3CCP1 9

[0089] 0.265 parts by mass of a compound represented by formula I-3 is added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 1.

[0090] 0.265 parts by mass of a compound represented by formula I-3 and 0.017 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 2.

[0091] 0.265 parts by mass of a compound represented by formula I-3 and 0.032 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 3.

[0092] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 4.

[0093] 0.250 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 5.

[0094] 0.280 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 6.

[0095] 0.320 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Example 7.

[0096] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC2, and a liquid crystal composition containing a polymerizable compound is obtained as Example 8.

[0097] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC3, and a liquid crystal composition containing a polymerizable compound is obtained as Example 9.

[0098] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC4, and a liquid crystal composition containing a polymerizable compound is obtained as Example 10.

[0099] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC5, and a liquid crystal composition containing a polymerizable compound is obtained as Example 11.

[0100] 0.25 parts by mass of a compound represented by formula I-3 and 0.017 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC6, and a liquid crystal composition containing a polymerizable compound is obtained as Example 12.

[0101] 0.25 parts by mass of a compound represented by formula I-3 and 0.024 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC7, and a liquid crystal composition containing a polymerizable compound is obtained as Example 13.

[0102] 0.25 parts by mass of a compound represented by formula I-3 and 0.026 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC8, and a liquid crystal composition containing a polymerizable compound is obtained as Example 14.

[0103] 0.25 parts by mass of a compound represented by formula I-3 and 0.028 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC9, and a liquid crystal composition containing a polymerizable compound is obtained as Example 15.

[0104] 0.25 parts by mass of a compound represented by formula I-3 and 0.032 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC10, and a liquid crystal composition containing a polymerizable compound is obtained as Example 16.

[0105] 0.28 parts by mass of a compound represented by formula I-1 and 0.017 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC11, and a liquid crystal composition containing a polymerizable compound is obtained as Example 17.

[0106] 0.28 parts by mass of a compound represented by formula I-1 and 0.024 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC12, and a liquid crystal composition containing a polymerizable compound is obtained as Example 18.

[0107] 0.28 parts by mass of a compound represented by formula I-1 and 0.026 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC13, and a liquid crystal composition containing a polymerizable compound is obtained as Example 19.

[0108] 0.28 parts by mass of a compound represented by formula I-1 and 0.028 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC14, and a liquid crystal composition containing a polymerizable compound is obtained as Example 20.

[0109] 0.28 parts by mass of a compound represented by formula I-1 and 0.032 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC15, and a liquid crystal composition containing a polymerizable compound is obtained as Example 21.

[0110] 0.32 parts by mass of a compound represented by formula I-2 and 0.017 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC16, and a liquid crystal composition containing a polymerizable compound is obtained as Example 22.

[0111] 0.32 parts by mass of a compound represented by formula I-2 and 0.024 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC17, and a liquid crystal composition containing a polymerizable compound is obtained as Example 23.

[0112] 0.32 parts by mass of a compound represented by formula I-2 and 0.026 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC18, and a liquid crystal composition containing a polymerizable compound is obtained as Example 24.

[0113] 0.32 parts by mass of a compound represented by formula I-2 and 0.028 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC19, and a liquid crystal composition containing a polymerizable compound is obtained as Example 25.

[0114] 0.32 parts by mass of a compound represented by formula I-2 and 0.032 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC20, and a liquid crystal composition containing a polymerizable compound is obtained as Example 26.

[0115] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC21, and a liquid crystal composition containing a polymerizable compound is obtained as Example 27.

[0116] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC22, and a liquid crystal composition containing a polymerizable compound is obtained as Example 28.

[0117] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC23, and a liquid crystal composition containing a polymerizable compound is obtained as Example 29.

[0118] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC24, and a liquid crystal composition containing a polymerizable compound is obtained as Example 30.

[0119] 0.265 parts by mass of a compound represented by formula I-3 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC25, and a liquid crystal composition containing a polymerizable compound is obtained as Example 31.

Comparative Example 1

[0120] 0.265 parts by mass of a compound represented by formula RM-1 and 0.05 parts by mass of a compound represented by formula VI-2 are added to 100 parts by mass of the liquid crystal composition LC1, and a liquid crystal composition containing a polymerizable compound is obtained as Comparative example 1.

##STR00527##

[0121] The liquid crystal composition containing a polymerizable compound is injected into a PSVA testing cassete with a cell gap of 3.2 .Math.m by a vacuum infusion process. Then, a fluorescent lamp is used to irradiate the liquid crystal cell with ultraviolet rays through a color filter for filtering out ultraviolet rays of 310 nm or less. At the moment, the ultraviolet ray is adjusted to have an illuminance of 100 mW/cm2 and a cumulative irradiation light amount of 30 J/cm2, which are measured under a condition of a center wavelength of 365 nm (irradiation condition 1). Then, a fluorescent UV lamp is used and the ultraviolet ray is adjusted to have an illuminance of 3 mW/cm2 and a cumulative irradiation light amount of 10 J/cm2, which are measured at a condition of a center wavelength of 313 nm (irradiation condition 2). UV1 represents the ultraviolet irradiation process under the irradiation condition 1, and UV2 represents the ultraviolet irradiation processes under the irradiation condition 1 and irradiation condition 2.

Effect Test

1. Pretilt Angle Change

[0122] Mixtures prepared by various polymerizable compounds and liquid crystal compounds are injected into testing cassetes. The polymerizable compounds are polymerized by ultraviolet irradiation, and then the pretilt angles of the testing cassetes after the UV1 and UV2 irradiation process are respectively determined. It is preferable that the pretilt angle change is small after the UV1 and UV2 processes.

[0123] In different temperature ranges, there is no significant difference in pretilt angles in different areas after the UV2 process, which can effectively improve the area mura problem.

2. Conversion Rate of the Polymerizable Compound

[0124] A polymerizable compound is added into a composition, and the polymerizable compound is consumed by polymerization to form a polymer. The conversion rate of this reaction is preferably a large conversion rate.

[0125] This is because the residual amount of polymer compound (the amount of the unreacted polymerizable compound) is preferably small from the viewpoint of image afterimage.

TABLE-US-00025 Comparative example 1 Example 1 Example 2 Example 3 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.265 0.265 0.265 0.265 RM category RM-1 I-3 I-3 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.22 0.158 0.165 0.178 Conversion rate (irradiation condition 1) 16.90% 40.38% 37.74% 32.83% Pretilt angle (irradiation condition 1) 2.5 2.5 2.4 2.3 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 2.1 2.4 2.3 2.2 Pretilt angle change 0.4 0.1 0.1 0.1

TABLE-US-00026 Example 4 Example 5 Example 6 Example 7 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.265 0.25 0.28 0.32 RM category I-3 I-3 I-3 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.183 0.164 0.18 0.22 Conversion rate (irradiation condition 1) 30.94% 34.40% 35.71% 31.25% Pretilt angle (irradiation condition 1) 2.2 2.0 2.8 3.2 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 2.0 1.9 2.6 3.1 Pretilt angle change 0.2 0.1 0.2 0.1

TABLE-US-00027 Example 8 Example 9 Example 10 Example 11 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.265 0.265 0.265 0.265 RM category I-3 I-3 I-3 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.178 0.185 0.182 0.183 Conversion rate (irradiation condition 1) 32.83% 30.19% 31.32% 30.94% Pretilt angle (irradiation condition 1) 2.2 2.1 2.3 2.2 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 2.1 2.0 2.1 2.1 Pretilt angle change 0.1 0.1 0.2 0.1

TABLE-US-00028 Example 12 Example 13 Example 14 Example 15 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.25 0.25 0.25 0.25 RM category I-3 I-3 I-3 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.178 0.174 0.172 0.17 Conversion rate (irradiation condition 1) 28.80% 30.40% 31.20% 32.00% Pretilt angle (irradiation condition 1) 2.0 2.0 2.0 1.9 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 1.9 1.9 1.9 1.8 Pretilt angle change 0.1 0.1 0.1 0.1

TABLE-US-00029 Example 16 Example 17 Example 18 Example 19 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.25 0.28 0.28 0.28 RM category I-3 I-1 I-1 I-1 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.171 0.182 0.183 0.183 Conversion rate (irradiation condition 1) 31.60% 35.00% 34.64% 34.64% Pretilt angle (irradiation condition 1) 1.9 2.9 2.8 2.8 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 1.8 2.8 2.7 2.7 Pretilt angle change 0.1 0.1 0.1 0.1

TABLE-US-00030 Example 20 Example 21 Example 22 Example 23 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.28 0.28 0.32 0.32 RM category I-1 I-1 I-2 I-2 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.184 0.186 0.21 0.2 Conversion rate (irradiation condition 1) 34.29% 33.57% 34.38% 37.50% Pretilt angle (irradiation 2.7 2.6 3.3 3.2 condition 1) Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 2.5 2.5 3.2 3.1 Pretilt angle change 0.2 0.1 0.1 0.1

TABLE-US-00031 Example 24 Example 25 Example 26 Example 27 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.32 0.32 0.32 0.265 RM category I-2 I-2 I-2 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.19 0.19 0.19 0.18 Conversion rate (irradiation condition 1) 40.63% 40.63% 40.63% 32.08% Pretilt angle (irradiation condition 1) 3.2 3.2 3.1 2.2 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 3.0 3.1 3.0 2.1 Pretilt angle change 0.2 0.1 0.1 0.1

TABLE-US-00032 Example 28 Example 29 Example 30 Example 31 Liquid crystal composition (parts by mass) 100 100 100 100 RM (parts by mass) 0.265 0.265 0.265 0.265 RM category I-3 I-3 I-3 I-3 Residual amount of polymerizable compound [ppm] (irradiation condition 1) 0.18 0.18 0.18 0.182 Conversion rate (irradiation condition 1) 32.08% 32.08% 32.08% 31.32% Pretilt angle (irradiation condition 1) 2.0 1.9 1.8 1.8 Residual amount of polymerizable compound [ppm] (irradiation condition 1 and irradiation condition 2) Below lower limit of detection Below lower limit of detection Below lower limit of detection Below lower limit of detection Pretilt angle (irradiation condition 1 and irradiation condition 2) 1.8 1.8 1.6 1.6 Pretilt angle change 0.2 0.1 0.2 0.2

[0126] Compared with comparative examples, the liquid crystal composition containing a polymerizable compound involved in the present invention has the advantages of smaller pretilt angle change, less residue and higher conversion rate, reduces the problem of return angle due to the UV2 process and effectively solves the area Mura problem.

Industrial Applicability

[0127] The present invention provides a liquid crystal composition comprising a polymerizable compound, and the use thereof. The liquid crystal composition includes a nematic phase liquid crystal composition and at least comprises one or more polymerizable compounds represented by general formula I. Compared with existing liquid crystal compositions, the polymerizable compound in the liquid crystal composition of the present invention has the advantages of faster polymerization rate, smaller pretilt angle change, higher conversion rate, and less residue, the problem that existing PSVA-type liquid crystal display is bad is mitigated to a large extent, the amount of pretilt angle change is reduced, the area Mura problem is solved, and has good economic value and application prospect.

##STR00528##