TWI638881B - Liquid crystal composition containing polymerizable compound and application thereof - Google Patents

Abstract

The invention discloses a liquid crystal composition containing a polymerizable compound, including a polymerizable component A and a liquid crystal component B. The polymerizable component A includes one or more polymerizable compounds; the liquid crystal component B includes at least one Compound of formula I. The invention also discloses a liquid crystal display device including the liquid crystal composition of the invention. The liquid crystal composition provided by the present invention has greater optical anisotropy and greater dielectric anisotropy, and can form a lower pretilt angle after adding RM.

Description

Liquid crystal composition containing polymerizable compound and application thereof

The invention belongs to the field of liquid crystal materials, and particularly relates to a liquid crystal composition containing a polymerizable compound and its application in a PSA display.

Liquid crystal displays (LCDs) have achieved rapid development due to their small size, light weight, low power consumption, and excellent display quality, and have been widely used in portable electronic information products. According to the type of display mode, it is divided into PC (phase change), TN (twist nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence), OCB (optically compensated bend), IPS (in-plane switching), FFS (fringe field switching), VA (vertical alignment), and PSA (polymer stable alignment) Physical stability alignment) and other types.

Among them, the PSA mode is to add a small amount (such as 0.3wt%, more typically <1wt%) of one or more polymerizable compounds to a liquid crystal composition, and apply a voltage between the electrodes or not after filling the liquid crystal cell. In the case of voltage, it is polymerized or crosslinked in situ (usually by UV light polymerization). The polymerization is performed at a temperature at which the liquid crystal composition exhibits a liquid crystal phase, and is usually performed at room temperature. The addition of a polymerizable liquid crystal compound to a liquid crystal composition has proven to be particularly suitable.

At the same time, the PSA principle is being used in various traditional LCD displays, such as Known PSA-VA, PSA-OCB, PSA-IPS, PSA-FFS and PSA-TN displays. Like conventional liquid crystal displays, PSA displays can operate as either active matrix or passive matrix displays. In the case of active matrix displays, the individual picture elements are usually addressed by integrated non-linear active elements such as transistors, while in the case of passive matrix displays, the individual picture elements are generally known according to the prior art Multiplexing method for addressing.

In the prior art, polymerizable compounds of the following formula have been used: Among them, P represents a polymerizable group, usually an acrylate group or a methacrylate group, as described in US7169449.

However, not all combinations of liquid crystal composition + reactive mesogenic (RM) composition are suitable for PSA displays because, for example, tilt cannot be established at all or sufficient tilt cannot be established. In addition, it has been found that when used in PSA displays, the conventionally known liquid crystal compositions and RMs still have some disadvantages. Therefore, not every RM known to be soluble in liquid crystal compositions is suitable for use in PSA displays. In addition, apart from directly measuring the pretilt angle in PSA displays, it is often difficult to find suitable selection criteria for RM. If it is desired to perform polymerization by means of UV light without adding a photoinitiator, the selection space of a suitable RM becomes smaller.

In addition, the selected liquid crystal composition / RM combination should have the lowest possible rotational viscosity and the best possible electrical properties, especially it should have the highest possible VHR. In PSA displays, a high VHR after UV light irradiation is particularly needed, because UV exposure is an essential part of the display production process, and it is also a normal exposure during the operation of the finished display. Light.

For PSA displays, it is better to generate a particularly small pretilt angle. Here, the preferred material should produce a smaller pretilt angle than the materials known to date at the same exposure time during polymerization, and / Or, the pretilt angle that can be obtained with known materials can be achieved with a short exposure time. In this way, the production time of the display can be shortened, and the cost can be reduced.

Another problem in the production of PSA displays is the existence of a residual amount of unpolymerized RM. Such unreacted RM may be polymerized in an uncontrollable manner after the display is manufactured, which negatively affects the properties of the display, for example, known PSA monitors often show the phenomenon of "image stickiness" or "image burn", that is, the image generated by the temporary addressing of the individual picture elements after the electric field in these picture elements has been disconnected or in other pictures Yuan is still visible after it has been located.

In view of the shortcomings of the prior art, the object of the present invention is to provide a liquid crystal composition which can be rapidly polymerized and can establish a lower pretilt angle, and has characteristics such as greater optical anisotropy and greater dielectric anisotropy. And the application of the polymerizable compound-containing liquid crystal composition in a PSA display.

A liquid crystal composition comprising a polymerizable compound, comprising a polymerizable component A and a liquid crystal component B, the polymerizable component A comprising one or more polymerizable compounds; the liquid crystal component B comprising at least one of the general formula I Compound Among them, R ₁ and R _{2 are the} same or different, and each independently represents H, an alkyl group of 1-12 carbon atoms or a halogenated alkyl group of 1-12 carbon atoms, and the alkyl group of 1-12 carbon atoms or 1 One or two non-adjacent CH ₂ groups in a haloalkyl group of -12 carbon atoms may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; m represents 1 or 2.

Preferably, the compound of the general formula I is selected from one or more compounds in the group consisting of: ;as well as

Further, the liquid crystal component B further comprises at least one compound of the general formula II: ; And / or at least one compound of formula III Where the ring with The same or different or , And when Express Time, Tertiary hydrogen can be substituted by -CN or -CF ₃ ; ring with The same or different R ₃ and R _{4 are the} same or different, and each independently represents H, F, CN, or an alkyl group of 1-12 carbon atoms, and one or two of the alkyl groups of 1-12 carbon atoms are not adjacent CH _{The 2} group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; R ₅ and R _{6 are the} same or different, and each independently represents H, 1-12 carbon atoms. Alkyl or haloalkyl of 1-12 carbon atoms, one or two non-adjacent CH ₂ groups of the 1-12 carbon atom or haloalkyl of 1-12 carbon atoms may be- O-, -CH = CH-, -CO-, -OCO-, or -COO- instead; n represents 0 or 1; q represents 1 or 2, and when q is 2, two rings Can be the same or different.

Preferably, the compound of the general formula II is selected from one or more compounds of the group consisting of: Wherein, the R ₃₁ and R _{41 are the} same or different, and each independently represents an alkyl group of H, F or 1-8 carbon atoms, and one or two of the alkyl groups of 1-8 carbon atoms are not adjacent The CH ₂ group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; the compound of the general formula III is selected from one or more of the group consisting of Kinds of compounds: Among them, R ₅₁ and R _{61 are the} same or different, and each independently represents H, an alkyl group of 1-8 carbon atoms or a halogenated alkyl group of 1-8 carbon atoms, and the alkyl group of 1-8 carbon atoms or 1 One or two non-adjacent CH ₂ groups in a haloalkyl group of -8 carbon atoms may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-.

Further preferably, the compound of the general formula II-1 is selected from one or more compounds in the group consisting of the following compounds: as well as The compound of the general formula II-2 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-3 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula II-4 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-5 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula II-6 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula II-7 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-8 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-9 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-10 is one or more compounds selected from the group consisting of the following compounds: as well as The compound of the general formula II-11 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula III-1 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula III-2 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula III-3 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula III-4 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula III-5 is one or more compounds selected from the group consisting of the following compounds: ;as well as Further, the liquid crystal component B further comprises at least one compound of the general formula IV: ; And / or at least one compound of general formula V: Among them, R ₇ and R _{8 are the} same or different, and each independently represents H, an alkyl group of 1-12 carbon atoms or a halogenated alkyl group of 1-12 carbon atoms, and the alkyl group of 1-12 carbon atoms or 1 One or two non-adjacent CH ₂ groups in a haloalkyl group of -12 carbon atoms may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; R ₉ and R _{10 is the} same or different, and each independently represents H or an alkyl group of 1-12 carbon atoms, and one or two non-adjacent CH ₂ groups in the alkyl group of 1-12 carbon atoms may be -O- , -CH = CH-, -CO-, -OCO- or -COO- instead; Z ₁ represents a double bond, triple bond, -CH ₂ O- or -COO-; Z ₂ represents a single bond, -CH ₂ O- Or -COO-; p represents 0 or 1; ring with The same or different, each independently or , And when the ring or Express In which, one or more H may be replaced by F.

Preferably, the compound of the general formula IV is selected from one or more compounds of the group consisting of: ;as well as Among them, R ₇₁ and R _{81 are the} same or different, and each independently represents H, an alkyl group of 1-6 carbon atoms or a halogenated alkyl group of 1-6 carbon atoms, the alkyl group of 1-6 carbon atoms or 1 One or two non-adjacent CH ₂ groups in a -6 carbon haloalkyl group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-.

Further preferably, the compound of the general formula IV-1 is selected from one or more compounds in the group consisting of: as well as The compound of the general formula IV-2 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula IV-3 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula IV-4 is one or more compounds selected from the group consisting of the following compounds: ;as well as

Preferably, the compound of the general formula V is selected from one or more compounds from the group consisting of: ;as well as Wherein, the R ₉₁ and R _{101 are the} same or different, and each independently represents an alkyl group of H or 1-6 carbon atoms, and one or two non-adjacent CHs of the alkyl group of 1-6 carbon atoms _{The 2} group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO- in a manner that O atoms are not directly connected to each other.

Further preferably, the compound of the general formula V-1 is selected from one or more compounds in the group consisting of: ;as well as The compound of the general formula V-2 is selected from one or more compounds of the group consisting of: ;as well as The compound of the general formula V-3 is selected from one or more compounds of the group consisting of: ;as well as The compound of the general formula V-4 is one or more compounds selected from the group consisting of the following compounds: ;as well as The compound of the general formula V-5 is selected from one or more compounds of the group consisting of: ;as well as The compound of the general formula V-6 is selected from one or more compounds in the group consisting of: ;as well as The compound of the general formula V-7 is one or more compounds selected from the group consisting of: ;as well as

Further, the polymerizable component A is one or more compounds selected from the group consisting of compounds of the following general formula VI: Among them, P ¹ represents Or -SH; Sp ¹ represents a single bond or a C ₁ to C ₂₀ alkylene group, wherein one or more non-adjacent -CH ₂ -groups in the alkylene group may be independently of each other by -O -, -S-, -COO-, -OCO-, -OCO-O-, -S-CO-, -CO-S-, -CH = CH- or -C≡C- substitution, the alkylene group Hydrogen in may be substituted by one or more halogens or CN; Qp _{1 is} selected from single bonds, -O-, -S-, -NH-, -NHCOO-, -OCONH-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH ₂ CH _2- , -CF ₂ CH _2- , -CH ₂ CF _2- , -CF ₂ CF _2- , -CF = CH-, -CH = CF-, -CF = CF-, -CO-, -COO-, -OCO-, -OCOO-, -CH _2- , -OCH _2- , -SCH _2- , -CH ₂ S-, -CH = CH-, -C≡C-, -CH = CH-COO-, and -OCO-CH = CH-; r1 and r2 are the same or different, and each independently represents 1, 2 or 3; MG _p represents mesogen Group or mesogenic support group; R _p1 represents halogen, nitrile or C ₁ ~ C ₂₀ alkylene, one or more non-adjacent -CH ₂ -groups in the alkylene may be Independent of each other by -O-, -S-, -NH-, -NCH _3- , -CO-, -COO-, -OCO-, -OCO-O-, -S-CO-, -CO-S -, - CH = CH- or -C≡C- Alternatively, or, R _p1 can P _² -Sp ² -Qp ² -, in which P ^{2, 2,} Sp Qp ₂ are defined and P ^1, Sp ^1, the same Qp _1.

Further, the MG _p represents Among them, A ₁ , A ₂ and A _{3 are the} same or different, and each is independently selected from the group consisting of 1,4-cyclohexyl, 1,4-cyclohexenyl, pyrimidine-1,4-diyl, 1,4-sub Bicyclo [2,2,2] octyl, 1,4-phenyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, naphthalene-2,6-diyl, transdecahydro A group consisting of naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl and 1,2-dihydroindane, wherein one or two of the 1,4-cyclohexyl groups are CH ₂ may be replaced by O or S independently of each other, and one or more H of the 1,4-phenyl groups may be independently replaced by halogen, CN or C ₁ ~ C ₄ alkyl or alkoxy ; Z _p1 and Z _{p2 are the} same or different, each independently selected from the group consisting of a single bond, -O-, -S-, -NH-, -NHCOO-, -OCONH-, -CF ₂ O-, -OCF ₂ -,- CF ₂ S-, -SCF _2- , -CH ₂ CH _2- , -CF ₂ CH _2- , -CH ₂ CF _2- , -CF ₂ CF _2- , -CF = CH-, -CH = CF-, -CF = CF-, -CO-, -COO-, -OCO-, -OCOO-, -CH _2- , -OCH _2- , -SCH _2- , -CH ₂ S-, -CH = CH-,- C≡C-, -CH = CH-COO-, and -OCO-CH = CH-; r3 represents 0, 1, or 2.

Preferably, the compound of the general formula VI is selected from one or more compounds from the group consisting of: Among them, r4 represents 1, 2, or 3; r5 represents 0, 1, 2, 3, or 4.

Furthermore, P ¹ and P ^{2 are the} same or different, and are independently represented.

Still further, a polymerizable compound in which all of Sp ₁ , Sp ₂ , Qp ₁ and Qp _{2 in} the general formula are single bonds is preferred.

Still further, compounds containing a biphenyl and / or terphenyl structure are preferred.

Still further, the polymerizable component A accounts for 0.01-5% of the total weight of the composition.

According to another aspect of the present invention, a liquid crystal display is provided, which comprises the above-mentioned liquid crystal composition containing a polymerizable compound.

Preferably, the liquid crystal display is a PSA type display.

The liquid crystal composition according to the present invention may also optionally include other additives known to those skilled in the art and described in the literature, such as polymerization initiators, inhibitors, stabilizers, surfactants, or chiral dopants. These additives can be polymerizable or Is not polymerizable. Accordingly, polymerizable additives are classified as polymerizable component A, and non-polymerizable additives are classified as components other than component A and component B.

The term "meso group" or "meso-supporting group" used in the present invention is known to those skilled in the art and described in the literature, and will be understood to mean a mutual due to attraction and repulsion. The acting anisotropic group actually contributes to the generation of a liquid crystal phase in a low molecular weight or polymeric substance. A compound containing a mesogenic group (mesogenic compound) does not necessarily have a liquid crystal phase in itself. It is also possible for mesogenic compounds to exhibit liquid crystal phase behavior only after other compounds are mixed and / or after polymerization. Typical mesogenic groups are, for example, rigid rod-shaped or disk-shaped units. Pure AppI. Chem. 73 (5), 888 (2001) and C. Tsuchierske, G. PeIzI, S. DieIe., Angew. Chem. 2004, 116, 6340-6368 are given in Overview of terms and definitions used.

The term "halogen" as used herein will be understood to mean F, Cl, Br or I.

The liquid crystal composition provided by the present invention has greater optical anisotropy and greater dielectric anisotropy. After adding RM, it can form a lower pretilt angle compared to the prior art, and is particularly suitable for PSA-type displays.

In some embodiments of the present invention, through a large number of experiments, screening and optimization, the liquid crystal composition of the present invention is obtained. The clear point Cp of the composition is between 70-85 ° C; the optical anisotropy Δn is 0.09-0.130 ( 20 ° C); absolute value of dielectric anisotropy | △ ε | is between 3.0-5.0.

The present invention will be described below with reference to specific embodiments. It should be noted that the following embodiments are examples of the present invention, and are only used to illustrate the present invention, but not to limit the present invention. Other combinations and various modifications within the concept of the present invention may be made without departing from the spirit or scope of the present invention.

For ease of expression, in the following examples, the group structure of the liquid crystal composition is represented by the codes listed in Table 1:

Take a compound of the following structural formula as an example:

If the structural formula is expressed by the codes listed in Table 1, it can be expressed as: nCCGF, n in the code represents the number of C atoms of the left alkyl group, for example, n is "3", which means that the alkyl group is -C ₃ H ₇ ; C in the code represents cyclohexane, G represents 2-fluoro-1,4-phenylene, and F represents fluorine.

The abbreviations of the test projects in the following examples are as follows:

Among them, the refractive index anisotropy was measured using an Abbe refractometer under a sodium light (589nm) light source at 25 ° C; Δε = ε∥-ε⊥, where ε∥ is a dielectric constant parallel to the molecular axis, ε⊥ is the dielectric constant perpendicular to the molecular axis. The test conditions are: 25 ° C, 1KHz, the test box is VA type, and the box thickness is 6 μm.

The pretilt angle test uses the crystal rotation method to inject liquid crystal into a VA type test cell with a thickness of 6μm and a voltage of 16V 60HZ. At the same time, it is irradiated with 6500mJ @ 365nm ultraviolet light to make the RM polymerize to form a pretilt angle.

Each component used in the following examples can be synthesized by a known method, or can be obtained through a commercial route. These synthetic techniques are conventional, and the resulting liquid crystal compounds have been tested to comply with electronic compound standards.

A liquid crystal composition was prepared according to the compounding ratio of each liquid crystal composition specified in the following examples. The preparation of the liquid crystal composition is performed according to a conventional method in the art, for example, heating, ultrasonic wave, suspension, etc. are used to prepare the liquid crystal composition according to a prescribed ratio.

The liquid crystal compositions given in the following examples were prepared and studied. The composition and performance parameter test results of each liquid crystal composition are shown below.

Comparative Example 1

The liquid crystal composition of Comparative Example 1 was formulated according to the compounds and weight percentages listed in Table 2, which was filled between the two substrates of the liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.5% V (1) EPPE (1) V to the above formula, and test the pretilt angle after the mixing is completed, the size is: 83.2 °.

Example 1

The liquid crystal composition of Example 1 was formulated according to the compounds and weight percentages listed in Table 3, which was filled between the two substrates of the liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.5% V (1) EPPE (1) V to the above formula and test the pre-tilt angle after the mixing is completed, the size is: 81.5 °.

Comparative Example 2

The liquid crystal composition of Comparative Example 2 was formulated according to each compound and weight percentage listed in Table 4, which was filled between two substrates of a liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.2% V (1) EPGE (1) V and 0.2% V (1) EPPE (1) V to the above formula, and test the pre-tilt angle after the mixing is completed, the size is: 84.7 °.

Example 2

The liquid crystal composition of Example 2 was prepared according to the compounds and weight percentages listed in Table 5. The liquid crystal composition of Example 2 was filled between two substrates of a liquid crystal display for performance testing.

Add 0.2% V (1) EPGE (1) V and 0.2% V (1) EPPE (1) V to the above formula, and test the pre-tilt angle after mixing, the size is: 83.1 °.

Comparative Example 3

The liquid crystal composition of Comparative Example 3 was formulated according to each compound and weight percentage listed in Table 6, which was filled between two substrates of a liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.3% V (1) E3PGPE (1) V to the above formula, and test the pre-tilt angle after the mixing is completed, the size is: 85.2 °.

Example 3

The liquid crystal composition of Example 3 was prepared according to the compounds and weight percentages listed in Table 7. The liquid crystal composition was filled between two substrates of a liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.3% V (1) E3PGPE (1) V to the above formula, and test the pre-tilt angle after the mixing is completed, the size is: 83.4 °.

Comparative Example 4

The liquid crystal composition of Comparative Example 4 was formulated according to the compounds and weight percentages listed in Table 8, which was filled between the two substrates of the liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.2% V (1) EPGE (1) V and 0.1% V (1) EPGPE (1) V to the above formula, and test the pre-tilt angle after the mixing is completed, the size is: 82.7 °.

Example 4

The liquid crystal composition of Example 4 was prepared according to the compounds and weight percentages listed in Table 9, which was filled between the two substrates of the liquid crystal display for performance testing. The test data is shown in the following table:

Add 0.2% V (1) EPGE (1) V and 0.1% V (1) EPGPE (1) V to the above formula, and test the pre-tilt angle after the mixing is completed, the size is: 80.3 °.

In order to highlight the beneficial effects of the liquid crystal composition of the present invention, the inventor selected a comparative example similar to the embodiment system of the present invention. It can be seen from the above Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Example 1, Example 2, Example 3, and Example 4 that the liquid crystal composition provided by the present invention has greater optical performance. Anisotropy, greater dielectric anisotropy, can form a lower pretilt angle after adding RM, and is more suitable for PSA displays, and the composition of the present invention has not been found to have unpolymerized RM, and is applied to PSA displays, Can clearly display images.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with the preferred embodiments, they are not intended to limit the present invention, and any technology familiar with the profession Personnel, without departing from the scope of the technical solution of the present invention, When the above disclosed technical content can be used to make a few changes or modifications to the equivalent embodiment of equivalent changes, but without departing from the technical solution of the present invention, any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present invention And modifications still fall within the scope of the technical solution of the present invention.

Claims (12)

A liquid crystal composition containing a polymerizable compound, comprising a polymerizable component A and a liquid crystal component B, characterized in that the polymerizable component A includes one or more polymerizable compounds; the liquid crystal component B includes at least one general formula Compound of I Among them, R ₁ and R _{2 are the} same or different, and each independently represents H, an alkyl group of 1-12 carbon atoms or a halogenated alkyl group of 1-12 carbon atoms, the alkyl group of 1-12 carbon atoms, or 1- One or two non-adjacent CH ₂ groups in a haloalkyl group of 12 carbon atoms may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; m represents 1 or 2 . The polymerizable compound-containing liquid crystal composition according to item 1 of the patent application scope, wherein the compound of the general formula I is one or more compounds selected from the group consisting of the following compounds: ;as well as The liquid crystal composition comprising a polymerizable compound according to item 1 of the scope of the patent application, wherein the liquid crystal component B further comprises at least one compound of the general formula II: ; And / or at least one compound of formula III Where the ring with The same or different or , And when Express Time, Tertiary hydrogen can be substituted by -CN or -CF ₃ ; ring with The same or different R ₃ and R _{4 are the} same or different, and each independently represents H, F, CN, or an alkyl group of 1-12 carbon atoms, and one or two of the alkyl groups of 1-12 carbon atoms are not adjacent CH ₂ The group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; R ₅ and R _{6 are the} same or different, and each independently represents an alkane of H and 1-12 carbon atoms One or two non-adjacent CH ₂ groups in the alkyl or haloalkyl group of 1-12 carbon atoms, or one or two non-adjacent CH ₂ groups of the alkyl group , -CH = CH-, -CO-, -OCO-, or -COO- instead; n represents 0 or 1, q represents 1 or 2, and when q is 2, two rings Can be the same or different. The polymerizable compound-containing liquid crystal composition according to item 3 of the scope of application for a patent, wherein the compound of the general formula II is selected from one or more compounds in the group consisting of the following compounds: Wherein, the R ₃₁ and R _{41 are the} same or different, and each independently represents an alkyl group of H, F or 1-8 carbon atoms, and one or two non-adjacent CHs of the alkyl group of 1-8 carbon atoms _{The 2} group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; the compound of the general formula III is selected from one or more compounds of the group consisting of : Among them, R ₅₁ and R _{61 are the} same or different, and each independently represents H, an alkyl group having 1 to 8 carbon atoms or a halogenated alkyl group having 1 to 8 carbon atoms, the alkyl group having 1 to 8 carbon atoms, or 1- One or two non-adjacent CH ₂ groups in a halogenated alkyl group of 8 carbon atoms can be replaced by -O-, -CH = CH-, -CO-, -OCO-, or- COO- instead. The liquid crystal composition containing a polymerizable compound according to item 1 of the scope of the patent application, wherein the liquid crystal component B further comprises at least one compound of the general formula IV: ; And / or at least one compound of general formula V: Among them, R ₇ and R _{8 are the} same or different, and each independently represents H, an alkyl group of 1-12 carbon atoms or a halogenated alkyl group of 1-12 carbon atoms, the alkyl group of 1-12 carbon atoms, or 1- One or two non-adjacent CH ₂ groups in a haloalkyl group of 12 carbon atoms may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; R ₉ and R ₁₀ The same or different, each independently represents H or an alkyl group of 1-12 carbon atoms, and one or two non-adjacent CH ₂ groups in the alkyl group of 1-12 carbon atoms may be -O-,- CH = CH-, -CO-, -OCO- or -COO- instead; Z ₁ represents a double bond, triple bond, -CH ₂ O- or -COO-; Z ₂ represents a single bond, -CH ₂ O- or- COO-; p represents 0 or 1; ring with The same or different, each independently or , And when the ring or Express In which, one or more H may be replaced by F. The polymerizable compound-containing liquid crystal composition according to item 5 of the scope of patent application, wherein the compound of the general formula IV is selected from one or more compounds of the group consisting of the following compounds: ;as well as The compound of the general formula V is one or more compounds selected from the group consisting of: ;as well as Among them, R ₇₁ and R _{81 are the} same or different, and each independently represents H, an alkyl group of 1-6 carbon atoms or a halogenated alkyl group of 1-6 carbon atoms, the alkyl group of 1-6 carbon atoms or 1- One or two non-adjacent CH ₂ groups in a 6-carbon haloalkyl group may be replaced by -O-, -CH = CH-, -CO-, -OCO-, or -COO-; R ₉₁ and R _{101 are the} same Or different, each independently represents H, an alkyl group of 1-6 carbon atoms, one or two non-adjacent CH ₂ groups in the alkyl group of 1-6 carbon atoms may be -O-, -CH = CH-, -CO-, -OCO- or -COO- instead. The polymerizable compound-containing liquid crystal composition according to item 1 of the patent application scope, wherein the polymerizable component A is one or more compounds selected from the group consisting of compounds of the following general formula VI: Among them, P ¹ represents Or -SH; Sp ¹ represents a single bond or a C ₁ to C ₂₀ alkylene group, wherein one or more non-adjacent -CH ₂ -groups in the alkylene group may be independently -O- , -S-, -COO-, -OCO-, -OCO-O-, -S-CO-, -CO-S-, -CH = CH- or -C≡C- instead, the Hydrogen may be substituted by one or more halogens or CN; Qp _{1 is} selected from a single bond, -O-, -S-, -NH-, -NHCOO-, -OCONH-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH ₂ CH _2- , -CF ₂ CH _2- , -CH ₂ CF _2- , -CF ₂ CF _2- , -CF = CH-, -CH = CF -, -CF = CF-, -CO-, -COO-, -OCO-, -OCOO-, -CH _2- , -OCH _2- , -SCH _2- , -CH ₂ S-, -CH = CH- , -C≡C-, -CH = CH-COO-, and -OCO-CH = CH-; r1 and r2 are the same or different, and each independently represents 1, 2, or 3; MG _p represents a mesogenic group Or mesogenic support group; R _p1 represents halogen, nitrile or C ₁ ~ C ₂₀ alkylene, one or more non-adjacent -CH ₂ -groups in this alkylene can be independently of each other -O-, -S-, -NH-, -NCH _3- , -CO-, -COO-, -OCO-, -OCO-O-, -S-CO-, -CO-S-, -CH = CH- or -C≡C- substitution; or, R _p1 may be P ² -Sp ² -Qp ₂ -, Where P ² , Sp ² , and Qp ₂ are respectively the same as P ¹ , Sp ¹ , and Qp ₁ . The liquid crystal composition containing a polymerizable compound as described in claim 7 of the scope of patent application, wherein the MG _p represents Among them, A ₁ , A ₂ and A _{3 are the} same or different, and each is independently selected from the group consisting of 1,4-cyclohexyl, 1,4-cyclohexenyl, pyrimidine-1,4-diyl, 1,4-sub Bicyclo [2,2,2] octyl, 1,4-phenyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, naphthalene-2,6-diyl, transdecahydro A group consisting of naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl and 1,2-dihydroindane, wherein one or two of the 1,4-cyclohexyl groups are not directly connected ₂ may be replaced by O or S independently of each other, and one or more H of the 1,4-phenyl groups may be independently replaced by halogen, CN or C ₁ ~ C ₄ alkyl or alkoxy; Z _p1 and Z _{p2 are the} same or different, each independently selected from the group consisting of a single bond, -O-, -S-, -NH-, -NHCOO-, -OCONH-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH ₂ CH _2- , -CF ₂ CH _2- , -CH ₂ CF _2- , -CF ₂ CF _2- , -CF = CH-, -CH = CF-, -CF = CF-, -CO-, -COO-, -OCO-, -OCOO-, -CH _2- , -OCH _2- , -SCH _2- , -CH ₂ S-, -CH = CH-, -C≡ C-, -CH = CH-COO- and -OCO-CH = CH-; r3 represents 0, 1 or 2. The liquid crystal composition containing a polymerizable compound as described in item 7 of the scope of patent application, wherein the P ¹ and P ^{2 are the} same or different and are each independently represented or The polymerizable compound-containing liquid crystal composition according to item 1 of the patent application range, wherein the polymerizable component A accounts for 0.01-5% of the total weight of the liquid crystal composition. A liquid crystal display includes a liquid crystal composition containing a polymerizable compound according to any one of claims 1 to 10 of the scope of patent application. The liquid crystal display according to item 11 of the scope of patent application, wherein the liquid crystal display is a PSA type display.