TW202035659A - Liquid crystal display device - Google Patents

Abstract

The present invention provides a liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer caused by decomposition of dyes and pigments in a liquid crystal display device manufacturing process and leakage of impurities contained in the dyes and pigments into a liquid crystal composition, and solves problems of display defects such as voids, uneven alignment, and screen burn. The present invention solves the above problem by providing a liquid crystal display device having a first substrate and a second substrate disposed opposite to each other, a liquid crystal layer filled between the first substrate and the second substrate, and a color filter composed of a black matrix and at least an RGB three-color pixel portion, wherein the liquid crystal layer includes a specific compound, the RGB three-color pixel portion includes a specific compound as a color material, an alignment film is not provided on at least one substrate surface, and there is provided an alignment control layer formed from spontaneous alignment compounds contained in the liquid crystal layer or a polymer obtained by polymerization thereof.

Description

Liquid crystal display device

The invention relates to a liquid crystal display device.

Regarding liquid crystal display devices, including clocks and calculators, they are used in various household electrical equipment, measuring equipment, automotive panels, word processors, electronic notebooks, printers, computers, and televisions. As a liquid crystal display method, representative ones include TN (twisted nematic) type, STN (super twisted nematic) type, DS (dynamic light scattering) type, GH (guest-host) type, IPS (in-plane switching) Type, OCB (optical compensation birefringence) type, ECB (electrically controlled birefringence) type, VA (vertical alignment) type, CSH (color super vertical alignment) type, or FLC (ferroelectric liquid crystal), etc. In addition, as the driving method, conventional static driving to multiplex driving have become common, and the simple matrix method, and the active matrix (AM) method driven by TFT (thin film transistor) or TFD (thin film diode), etc. recently have become mainstream.

An ordinary color liquid crystal display device is shown in Fig. 1, which is provided with a transparent electrode layer (3a) and a color filter which become a common electrode between one of the two substrates (1) and the substrate with the alignment film (4). The sheet layer (2) is provided with a pixel electrode layer (3b) between another alignment film and the substrate, and the substrates are arranged such that the alignment films face each other, and the liquid crystal layer (5) is sandwiched therebetween.

The above-mentioned color filter is composed of a color filter composed of a black matrix, a red colored layer (R), a green colored layer (G), a blue colored layer (B), and a yellow colored layer (Y) if necessary , As the colorant, a pigment dispersion resist made by microdispersing the pigment is used.

On the other hand, in recent years, problems such as the increase in power consumption accompanying the enlargement of color liquid crystal display devices and the reduction in aperture ratio of color filters accompanying the increase in high definition have occurred. As a solution, the brightness of the color filter or Contrast enhancement, etc., but the brightness of the conventional pigment dispersion resists used has reached its peak, and it is difficult to further increase the brightness. In addition, it is pointed out that the contrast caused by the light scattering of the pigment particles is insufficient.

As a solution to the above-mentioned problems, a method of using dyes instead of pigments is being studied. Various molecular structures of dyes have been put into practical use, and among them, those with higher brightness are also known. In addition, since it is not in the state of particles like pigments, light scattering can be suppressed, and high contrast can be expected.

However, dyes have poor heat resistance compared with pigments, and there is a concern that the polyimide alignment film in the conventional liquid crystal display device will decompose during the firing step. In addition, when dyes are used in the color filter layer, the influence of impurities on the liquid crystal layer can be assumed.

系染料（專利文獻3）等，關於將該等用於濾色片時之色料之結構與液晶材料之結構之直接關係並未進行研究，液晶顯示裝置之顯示不良問題並未解決。As dyes, phenoxy ether substituted phthalocyanine dyes (Patent Document 1), triarylmethane-based dyes (Patent Document 2), 𠮿

Dyes (Patent Document 3), etc., have not been studied on the direct relationship between the structure of the color material used in the color filter and the structure of the liquid crystal material, and the problem of poor display of the liquid crystal display device has not been solved.

In addition, in recent years, in order to save costs related to the film formation of the alignment film layer and to simplify the manufacturing steps of the liquid crystal display device, the development of liquid crystal display devices without the alignment film layer is being promoted. Specifically, research is underway to encapsulate a liquid crystal composition containing an alignment aid that imparts alignment to liquid crystal molecules, and use it to replace the alignment film layer. The alignment film layer is located between the color filter layer, etc. and the liquid crystal layer to prevent impurities from oozing out from these components to a certain extent. However, since the above-mentioned liquid crystal display device does not have an alignment film, it is possible to impart components and transparent electrodes through alignment. The impurity contained in the layer causes the voltage retention rate (VHR) of the liquid crystal layer to decrease, resulting in poor display such as white spots, uneven alignment, and residual images.

As the development of a liquid crystal display device without an alignment film layer, a method of using a liquid crystal composition containing a self-aligning polymerizable compound is disclosed. The self-aligning polymerizable compound achieves a liquid crystal composition on the surface or cell wall of a liquid crystal display. The vertical alignment (Patent Document 4, Patent Document 5). However, these methods do not clearly indicate a solution to the poor display of the liquid crystal display device caused by impurities contained in the dyes and pigments constituting the color filter.

As a method to solve the display failure caused by impurities contained in the pigments constituting the color filter, the following method is disclosed: focusing on the relationship between the organic impurities contained in the color filter and the liquid crystal composition, the liquid crystal layer The hydrophobicity parameter of the contained liquid crystal molecules indicates the degree to which the organic impurities are difficult to dissolve the liquid crystal layer. The value of the hydrophobicity parameter is set to a certain value or more; or according to the hydrophobicity parameter and the -OCF ₃ group at the end of the liquid crystal molecule For the correlation, a liquid crystal composition containing a liquid crystal compound having an -OCF ₃ group at the end of the liquid crystal molecule at a certain ratio or more was prepared (Patent Document 6).

However, in the disclosure of the cited document, it is the essence of the invention to suppress the influence of the impurities in the pigment on the liquid crystal layer. The structure of the dyes and other color materials used in the color filter and the structure of the liquid crystal material The direct relationship has not been studied, and the problem of poor display of the liquid crystal display device caused by the impurities contained in the dyes and pigments constituting the color filter has not been solved. [Prior Technical Literature] [Patent Literature]

Patent Document 1: US Patent No. 9581729 Patent Document 2: Japanese Patent Application Publication No. 2015-28121 Patent Document 3: Japanese Patent Application Publication No. 2010-254964 Patent Document 4: Japanese Patent Application Publication No. 2015-168826 Patent Document 5: International Publication No. 2016/114093 Patent Document 6: Japanese Patent Laid-Open No. 2000-192040

[The problem to be solved by the invention]

The present invention is to provide a liquid crystal display device, which prevents liquid crystal display device manufacturing steps by using a color filter using a specific liquid crystal composition and specific dyes in a liquid crystal display device without an alignment film. The reduction of the voltage retention rate (VHR) of the liquid crystal layer caused by the decomposition of the dye pigment and the bleeding of impurities contained in the dye pigment into the liquid crystal composition solves the problems of poor display such as white spots, uneven alignment, and residual images. [Technical means to solve the problem]

In order to solve the above-mentioned problems, the inventors of the present invention conducted diligent research on the combination of dyes, pigments, and other color materials used to form color filters, and alignment aids that impart alignment to liquid crystal molecules in liquid crystal display devices without alignment films. It is found that the use of a liquid crystal display device with a color filter using a specific structure of dyeing pigment will prevent the voltage retention rate (VHR) of the liquid crystal layer from decreasing, and solve the problems of poor display such as white spots, uneven alignment, and afterimages, thus completing This case is invented.

That is, the present invention provides a liquid crystal display device, which It has a first substrate and a second substrate arranged oppositely, a liquid crystal layer filled between the first substrate and the second substrate, and a color filter composed of a black matrix and at least RGB three-color pixel portions, The liquid crystal layer contains 10-50% by weight of the compound represented by the general formula (I),

(In the formula, R ¹ and R ² each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkyl group with 2 to 8 carbon atoms. Alkenyloxy), containing 35 to 80% by weight of the compound represented by the general formula (II),

(In the formula, R ³ and R ⁴ each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms. Alkenyloxy, Z ³ and Z ⁴ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, B and C each independently represent 1,4-phenylene or trans-1,4-phenylene which can be substituted by a fluorine atom Cyclohexyl, m and n each independently represent an integer of 0-4, m+n=1-4), and further contains an alignment aid, as a colorant, the above-mentioned RGB three-color pixel portion contains two selected from pyrrolopyrrole in the R pixel portion One or more of ketone (diketopyrrolopyrrole) pigments and oil-soluble red organic dyes, containing selected from halogenated phthalocyanine pigments, phthalocyanine green dyes, phthalocyanine blue dyes and azo yellow in the G pixel portion At least one of the group consisting of a mixture of organic dyes, containing one or more selected from ε-type copper phthalocyanine pigments and cationic blue organic dyes in the B pixel portion, and the liquid crystal display device is described above At least one of the first substrate and the second substrate does not have an alignment film on the surface, but has an alignment control layer formed by an alignment aid contained in the liquid crystal layer or a polymer formed by polymerization.

An example of the liquid crystal display device of the present invention is shown in FIG. 2. One of the two substrates (1) of the first substrate and the second substrate without an alignment film is provided with a transparent electrode layer (3a) that becomes a common electrode and a color filter layer (3a) containing specific pigments and specific compounds ( 2a) A pixel electrode layer (3b) is provided on another substrate, and a liquid crystal layer (5a) containing a specific liquid crystal composition and an alignment aid that imparts alignment to liquid crystal molecules is sandwiched between the substrates.

The two substrates in the above-mentioned display device are bonded together by the sealing material and the sealing material arranged in the peripheral area. In most cases, a granular spacer or a resin formed by photolithography is arranged between them. The spacers are formed to maintain the distance between the substrates. ＜Liquid crystal layer＞ The liquid crystal layer is composed of a liquid crystal composition containing 10-50% by weight of the compound represented by the general formula (I),

(In the formula, R ¹ and R ² each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkyl group with 2 to 8 carbon atoms. Alkenyloxy) contains 35 to 80% by weight of the compound represented by the general formula (II),

(In the formula, R ³ and R ⁴ each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms. Alkenyloxy, Z ³ and Z ⁴ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, B and C each independently represent 1,4-phenylene or trans-1,4-ring which may be substituted by fluorine Hexyl, m and n each independently represent an integer of 0-4, m+n=1-4).

The liquid crystal layer in the liquid crystal display device of the present invention contains 10 to 50% by weight of the compound represented by the general formula (I), preferably 12 to 48% by weight, and more preferably 14 to 45% by weight.

In the general formula (I), R ¹ and R ² each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or the number of carbon atoms The alkenyloxy group of 2 to 8 preferably represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkoxy group having 2 to 5 carbon atoms The alkenyloxy group more preferably represents an alkyl group having 2 to 5 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or an alkenyloxy group having 2 to 4 carbon atoms, Preferably, R ¹ represents an alkyl group, and in this case, an alkyl group having 2, 3 or 4 carbon atoms is particularly preferred. When R ¹ represents an alkyl group with 3 carbon atoms, R ² is preferably an alkyl group with 2, 4, or 5 carbon atoms, or an alkenyl group with 2 to 3 carbon atoms, and R ² is a carbon atom The number 2 alkyl group is more preferable.

The content of the compound represented by general formula (I) in which at least one of R ¹ and R ² is an alkyl group having 3 to 5 carbon atoms is preferably 50% by weight or more in the compound represented by general formula (I), It is more preferably 70% by weight or more, and still more preferably 80% by weight or more. In addition, the content of the compound represented by general formula (I) in which at least one of R ¹ and R ² is an alkyl group with 3 carbon atoms is preferably 50% by weight or more in the compound represented by general formula (I), It is more preferably 70% by weight or more, still more preferably 80% by weight or more, and most preferably 100% by weight.

The compound represented by general formula (I) is specifically preferably a compound represented by general formula (Ia) to general formula (Ig) described below.

(In the formula, R ¹ and R ² each independently represent an alkyl group with 1 to 5 carbon atoms or an alkoxy group with 1 to 5 carbon atoms, preferably the same as R ¹ and R ² in the general formula (I) (Implementation aspect) In general formula (Ia) to general formula (If), general formula (Ia), general formula (Ib), and general formula (Ic) are preferred, and general formula (Ia) and General formula (Ib). When the response speed is important, the general formula (Ib) and the general formula (Ic) are preferred, and the general formula (Ib) and the general formula (Ic) are more preferably used in combination. When reliability is important, general formula (Ia) is preferred.

In terms of these aspects, the content of the compounds represented by general formula (Ia), general formula (Ib) and general formula (Ic) is preferably more than 80% by weight of the compound represented by general formula (I), and more It is preferably 90% by weight or more, more preferably 95% by weight or more, and most preferably 100% by weight. Furthermore, it is preferable that the content of the compound represented by general formula (Ia) is 65% to 100% by weight in the compound represented by general formula (I), which is represented by general formula (Ib) and general formula (Ic) The content of the compound is 0% to 35% by weight in the compound represented by the general formula (I), or the content of the compound represented by the general formula (Ia) is 0% by weight in the compound represented by the general formula (I) ~10% by weight, the content of the compound represented by the general formula (Ib) and the general formula (Ic) is 90% to 100% by weight in the compound represented by the general formula (I).

The liquid crystal layer in the liquid crystal display device of the present invention may contain 0 to 35% by weight of the compound represented by the general formula (I-1), more preferably 0 to 32% by weight, and more preferably 1 to 30% by weight %.

In the general formula (I-1), R ¹ and R ² each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or carbon Alkenyloxy having 2 to 8 atoms, R ¹ preferably represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or the number of carbon atoms 2 to 5 alkenyloxy group, more preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, and R ² preferably represents an alkyl group having 1 to 5 carbon atoms, or a carbon atom Alkenyl group having 4 to 5, alkoxy group having 1 to 5 carbon atoms, or alkenyloxy group having 3 to 5 carbon atoms, more preferably an alkyl group having 1 to 5 carbon atoms or 1 to 5 carbon atoms In the alkoxy group, R ¹ preferably represents an alkyl group, and in this case, an alkyl group with 1, 3 or 5 carbon atoms is particularly preferred. Furthermore, R ² preferably represents an alkoxy group having 1, 2 or 4 carbon atoms.

The compound represented by general formula (I-1) is specifically preferably a compound represented by general formula (I-1h) to general formula (I-1k) described below.

(In the formula, R ¹ and R ² each independently represent an alkyl group with 1 to 5 carbon atoms or an alkoxy group with 1 to 5 carbon atoms, preferably with R ¹ and R in the general formula (I-1) ^{2 The} same embodiment) The liquid crystal layer in the liquid crystal display device of the present invention contains 35 to 80% by weight of the compound represented by general formula (II), preferably 40 to 75% by weight, more preferably 42 to 70 weight%.

(In the formula, R ³ and R ⁴ each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms. Alkenyloxy, Z ³ and Z ⁴ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, B and C each independently represent 1,4-phenylene or trans-1,4-ring which may be substituted by fluorine Hexyl, m and n each independently represent an integer from 0 to 4, m+n = 1 to 4), in the general formula (II), R ³ represents an alkyl group with 1 to 8 carbon atoms, an alkene with 2 to 8 carbon atoms Group, alkoxy group having 1 to 8 carbon atoms or alkenyl group having 2 to 8 carbon atoms, preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, more preferably It represents an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 4 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 or 3 carbon atoms, and is particularly preferred It represents an alkyl group with 2 or 3 carbon atoms or an alkenyl group with 2 carbon atoms, and most preferably represents an alkyl group with 2 or 3 carbon atoms.

R ⁴ represents an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 4 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkenyloxy group with 3 to 8 carbon atoms, and preferably represents carbon An alkyl group having 1 to 5 atoms or an alkoxy group having 1 to 5 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and more preferably An alkoxy group having 2 to 4 carbon atoms.

Z ³ and Z ⁴ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH _2- , -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, preferably representing a single bond, -CH ₂ CH ₂ -, -COO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -Or -CF ₂ O-, more preferably represents a single bond, -CH ₂ CH ₂ -or -CH ₂ O-.

m and n each independently represent an integer of 0-3, preferably an integer of 0-2, and m+n is preferably 1-3, more preferably 1-2.

The liquid crystal layer in the liquid crystal display device of the present invention may contain 3 to 10 types of compounds represented by the general formula (II), preferably 4 to 9 types, and preferably 5 to 8 types.

The compound represented by the general formula (II) preferably contains the compound represented by the following general formula (II-1).

In the formula, R ³ and R ⁴ each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms or an alkene with 2 to 8 carbon atoms Oxygen, Z ⁵ represents a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -,- CH ₂ O-, -OCF ₂ -or -CF ₂ O-, m1 represents 0 or 1.

In the general formula (II-1), R ³ preferably represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, more preferably an alkyl group having 2 to 5 carbon atoms or The alkenyl group having 2 to 4 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 carbon atoms, more preferably an alkyl group having 3 carbon atoms, and R ^{4 is} preferably It represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms, and more preferably It represents an alkyl group with 3 carbon atoms or an alkoxy group with 2 carbon atoms, and more preferably represents an alkoxy group with 2 carbon atoms. Z ⁵ preferably represents a single bond, -CH ₂ CH ₂ -, -COO -, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, and more preferably represent a single bond or -CH ₂ O-.

The liquid crystal layer in the liquid crystal display device of the present invention preferably contains 3% to 60% by weight of the compound represented by the general formula (II-1), preferably 5% to 55% by weight, and more preferably 8 The weight%-50 weight %, especially 10 weight%-40 weight% is contained.

The liquid crystal layer in the liquid crystal display device of the present invention may contain one or more of the compounds represented by the general formula (II-1), preferably contains one to six kinds, and preferably contains two to five kinds, Preferably, 3 or 4 types are contained.

As the compound represented by general formula (II-1), specifically, compounds represented by general formula (II-1a) to general formula (II-1d) described below are preferred.

(In the formula, R ³ represents an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and R ^4a represents an alkyl group with 1 to 5 carbon atoms), in the general formula (II-1a) and In the general formula (II-1c), R ^{3 is} preferably the same embodiment as in the general formula (II-1). R ^{4a is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 2 carbon atoms, and particularly preferably an alkyl group having 2 carbon atoms.

In general formula (II-1b) and general formula (II-1d), R ^{3 is} preferably the same embodiment as in general formula (II-1). R ^{4a is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 3 carbon atoms, and particularly preferably an alkyl group having 3 carbon atoms.

In general formula (II-1a) and general formula (II-1d), in order to increase the absolute value of dielectric constant anisotropy, general formula (II-1a) and general formula (II-1c) are preferable, and It is the general formula (II-1a).

The liquid crystal layer in the liquid crystal display device of the present invention preferably contains one or more compounds represented by general formula (II-1a) to general formula (II-1d), and preferably contains one or two compounds, It is preferable to contain one or two kinds of compounds represented by the general formula (II-1a).

Moreover, as the compound represented by general formula (II-1), specifically, the compound represented by general formula (II-1e) and general formula (II-1h) described below is also preferable.

(In the formula, R ³ represents an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and R ^4b represents an alkyl group with 1 to 5 carbon atoms), in the general formula (II-1e) and In the general formula (II-1g), R ^{3 is} preferably the same embodiment as in the general formula (II-1). R ^{4b is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 2 carbon atoms, and particularly preferably an alkyl group having 2 carbon atoms.

In general formula (II-1f) and general formula (II-1h), R ^{3 is} preferably the same embodiment as in general formula (II-1). R ^{4b is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 3 carbon atoms, and particularly preferably an alkyl group having 3 carbon atoms.

In general formula (II-1e) and general formula (II-1f), in order to increase the absolute value of the dielectric anisotropy, general formula (II-1e) and general formula (II-1g) are preferred.

In the general formula (II-2), R ³ and R ⁴ each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms or a carbon atom Alkenyloxy group of 2-8, Z ⁶ and Z ⁷ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ OH ₂ -, -(CH ₂ ) ₄ -, -COO- , -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, D represents 1,4-phenylene or trans-1,4-phenylene which can be substituted by fluorine Cyclohexyl, m2 and n2 each independently represent 0 or 1.

In the general formula (II-2), R ³ preferably represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, more preferably an alkyl group having 2 to 5 carbon atoms or The alkenyl group having 2 to 4 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 carbon atoms, more preferably an alkyl group having 2 or 3 carbon atoms, R ⁴ is more It preferably represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms, more preferably represents an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms, and further Preferably, it represents an alkyl group having 3 carbon atoms or an alkoxy group having 2 carbon atoms.

In the general formula (II-2), Z ⁶ preferably represents a single bond, -CH ₂ CH ₂ -, -COO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O -, more preferably represents a single bond or -CH ₂ O-.

In the general formula (II-2), Z ⁷ preferably represents a single bond, -CH ₂ CH ₂ -, -COO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O -, more preferably represents a single bond or -CH ₂ CH ₂ -.

The liquid crystal layer in the liquid crystal display device of the present invention preferably contains one or more of the compounds represented by the general formula (II-2), more preferably contains one to six types, and more preferably contains two to There are 5 kinds, preferably 3 or 4 kinds.

The compound represented by general formula (II-2) is specifically preferably a compound represented by general formula (II-2a) to general formula (II-2d) described below.

(In the formula, R ³ represents an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and R ^4c represents an alkyl group with 1 to 5 carbon atoms, preferably with the general formula (II-2 ) In which R ³ and R ^{4 are the} same), in general formula (II-2a) and general formula (II-2c), R ^{3 is} preferably the same implementation in general formula (II-2) State. R ^{4c is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 2 carbon atoms, and particularly preferably an alkyl group having 2 carbon atoms.

In general formula (II-2b) and general formula (II-2d), R ^{3 is} preferably the same embodiment as in general formula (II-2). R ^{4c is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 3 carbon atoms, and particularly preferably an alkyl group having 3 carbon atoms.

In general formula (II-2a) ~ general formula (II-2d), in order to increase the absolute value of dielectric constant anisotropy, general formula (II-2a) and general formula (II-2c) are preferred, especially It is preferably the general formula (II-2a).

Furthermore, as the compound represented by the general formula (II-2), specifically, compounds represented by the general formula (II-2e) to (II-2l) described below are also preferred.

(In the above general formula (II-2e) to general formula (II-2l), R ³ represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and R ^4d represents a carbon number of 1 to The alkyl group of 5 is preferably the same embodiment as each of R ³ and R ⁴ in general formula (II-2)), in general formula (II-2e), general formula (II-2g) and general formula In (II-2i), R ^{3 is} preferably the same embodiment as in the general formula (II-2). R ^{4d is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 2 carbon atoms, and particularly preferably an alkyl group having 2 carbon atoms.

In general formula (II-2f), general formula (II-2h) and general formula (II-2j), R ^{3 is} preferably the same embodiment as in general formula (II-2). R ^{4d is} preferably an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 or 3 carbon atoms, and particularly preferably an alkyl group having 2 carbon atoms.

In general formula (II-2k) and general formula (II-21), R ^{3 is} preferably the same embodiment as in general formula (II-2). R ^{4d is} preferably an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, more preferably an alkyl group having 1 or 3 carbon atoms, or an alkoxy group having 1 to 2 carbon atoms, Particularly preferred is an alkyl group having 2 carbon atoms or an alkoxy group having 2 carbon atoms.

Among general formula (II-2e) to general formula (II-2l), general formula (II-2e), general formula (II-2h) and general formula (II-2k) are preferred.

The liquid crystal layer in the liquid crystal display device of the present invention is preferably a compound represented by general formula (I) and general formula (II). The total content of the compound is 75% by weight to 100% by weight, preferably 80% by weight to 100% by weight , Preferably 80% to 95% by weight, preferably 80% to 100% by weight, and preferably 95% to 100% by weight.

The liquid crystal layer in the liquid crystal display device of the present invention may further contain the compound represented by the general formula (III).

(In the formula, R ⁷ and R ⁸ each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkyl group with 2 to 8 carbon atoms Alkenyloxy, D, E and F each independently represent 1,4-phenylene or trans-1,4-cyclohexylene which may be substituted by fluorine, and Z ² represents a single bond, -OCH ₂ -, -OCO- , -CH ₂ O- or -COO-, -OCO-, n represents 0, 1 or 2; however, except those represented by general formula (I), general formula (II-1) and general formula (II-2) Other than the compound) The compound represented by the general formula (III) preferably contains 1 to 20%, preferably 2 to 15%, and more preferably 4 to 10%.

In the general formula (III), D, E and F each independently represent 1,4-phenylene or trans-1,4-cyclohexylene which may be substituted by fluorine, and preferably represents 2-fluoro-1, 4-phenylene, 2,3-difluoro-1,4-phenylene, 1,4-phenylene or trans-1,4-cyclohexylene, more preferably 2-fluoro-1,4 -Phenylene or 2,3-difluoro-1,4-phenylene, 1,4-phenylene, preferably 2,3-difluoro-1,4-phenylene or 1,4- Phenylene.

In the general formula (III), R ⁷ represents an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms or an alkene with 2 to 8 carbon atoms An oxy group, when D represents trans-1,4-cyclohexylene, preferably represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably represents a carbon atom An alkyl group having 2 to 5 or an alkenyl group having 2 to 4 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 or 3 carbon atoms, and particularly preferably an alkenyl group having carbon atoms The alkyl group of 3, when D represents a 1,4-phenylene group which may be substituted by fluorine, it preferably represents an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 4 or 5 carbon atoms, more preferably It represents an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 4 carbon atoms, and more preferably represents an alkyl group having 2 to 4 carbon atoms.

In the general formula (III), R ⁸ represents an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms or an alkene with 3 to 8 carbon atoms An oxy group, when F represents trans-1,4-cyclohexylene, preferably represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably represents a carbon atom An alkyl group having 2 to 5 or an alkenyl group having 2 to 4 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 or 3 carbon atoms, and particularly preferably an alkenyl group having carbon atoms The alkyl group of 3, when F represents a 1,4-phenylene group which may be substituted by fluorine, it preferably represents an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 4 or 5 carbon atoms, more preferably It represents an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 4 carbon atoms, and more preferably represents an alkyl group having 2 to 4 carbon atoms.

In the general formula (III), R ⁷ and R ⁸ represent an alkenyl group, and when the bonded D or F represents a 1,4-phenylene group that can be substituted by fluorine, it is used as an alkene with 4 or 5 carbon atoms The base is preferably the following structure.

(In the above formula, it is assumed that the right end is bonded to the ring structure), In this case, it is also more preferably an alkenyl group having 4 carbon atoms.

In the general formula (III), Z ² represents a single bond, -OCH ₂ -, -OCO-, -CH ₂ O- or -COO-, preferably represents a single bond, -CH ₂ O- or -COO-, More preferably, it is a single key.

In the general formula (III), n represents 0, 1, or 2, and preferably represents 0 or 1. In addition, when Z ² represents a substituent other than a single bond, it preferably represents 1.

Regarding the compound represented by the general formula (III), when n represents 1, from the viewpoint of increasing the negative dielectric constant anisotropy, the following general formula (III-1c) to general formula ( The compound represented by III-1e) is preferably a compound represented by general formula (III-1f) to general formula (III-1j) from the viewpoint of increasing the response speed.

(In general formula (III-1f) to general formula (III-1j), R ⁷ and R ⁸ each independently represent an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or 1 The alkoxy group of ~5 is preferably the same embodiment as R ⁷ and R ^{8 in} the general formula (III)). Regarding the compound represented by the general formula (III), when n represents 2, it is From the viewpoint of increasing the negative dielectric constant anisotropy, the compound represented by the general formula (III-2a) to the general formula (III-2h) is preferable, and from the viewpoint of increasing the response speed, the compound Compounds represented by formula (II-2j) to general formula (III-2l).

(In general formula (III-2j) ~ general formula (III-2l), R ⁷ and R ⁸ each independently represent an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or 1 The alkoxy group of ~5 is preferably the same embodiment as R ⁷ and R ^{8 in} the general formula (III)). Regarding the compound represented by the general formula (III), when n represents 0, From the viewpoint of increasing the response speed, the compound represented by the general formula (III-3b) is preferred.

(In the general formula (III-3b), R ⁷ and R ⁸ each independently represent an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 5 carbon atoms. Preferably, it is the same embodiment as R ⁷ and R ⁸ in the general formula (III)) R ^{7 is} preferably an alkyl group having 2 to 5 carbon atoms, more preferably an alkyl group having 3 carbon atoms. R ^{8 is} preferably an alkoxy group having 1 to 3 carbon atoms, more preferably an alkoxy group having 2 carbon atoms.

The liquid crystal layer in the liquid crystal display device of the present invention can be used in a wide range of nematic phase-isotropic liquid phase transition temperature (T _ni ), preferably 60 to 120°C, more preferably 70 to 100°C, especially It is 70 to 85°C.

The dielectric constant anisotropy is preferably -2.0 to -6.0 at 25°C, more preferably -2.5 to -5.0, and particularly preferably -2.5 to -4.0.

The refractive index anisotropy is preferably 0.08 to 0.13 at 25°C, more preferably 0.09 to 0.12. If described in further detail, it is preferably 0.10 to 0.12 when it corresponds to a thin cell gap, and it is preferably 0.08 to 0.10 when it corresponds to a thick cell gap.

The rotational viscosity (γ1) is preferably 150 or less, more preferably 130 or less, and particularly preferably 120 or less.

In the liquid crystal layer in the liquid crystal display device of the present invention, Z, which is a function of rotational viscosity and refractive index anisotropy, preferably represents a specific value.

[Number 1]

(In the formula, γ1 represents rotational viscosity, and Δn represents refractive index anisotropy), Z is preferably 13,000 or less, more preferably 12,000 or less, and particularly preferably 11,000 or less.

When the liquid crystal layer in the liquid crystal display device of the present invention is used in an active matrix display element, it must have a specific resistance of 10 ¹² (Q·cm) or more, preferably 10 ¹³ (Q·cm) or more, more preferably 10 ¹⁴ (Q·cm) or more.

In addition to the above-mentioned compounds, the liquid crystal layer in the liquid crystal display device of the present invention may also contain normal nematic liquid crystals, smectic liquid crystals, cholesteric liquid crystals, antioxidants, ultraviolet absorbers, polymerizable monomers, etc. depending on the application.

As a polymerizable monomer, it is preferable to contain a polymerizable compound represented by the following general formula (P). The polymerizable compound has a function of imparting a specific pretilt angle to liquid crystal molecules. Furthermore, the liquid crystal composition may contain two or more kinds of the polymerizable compounds.

In the formula (P), R ^p1 represents a hydrogen atom, a fluorine atom, a cyano group, an alkyl group having 1 to 15 carbon atoms, or -Sp ^p2 -P ^p2 . Among them, one or two or more non-adjacent -CH ₂ -existing in the alkyl group may be independently substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO- Or -OCO-. In addition, one or two or more hydrogen atoms present in the alkyl group may be independently substituted with a cyano group, a fluorine atom, or a chlorine atom.

P ^p1 and P ^p2 each independently represent any one of the following general formula (P ^p1 -1) to formula (P ^p1 -9).

(In the formula, R ^p11 and R ^p12 each independently represent a hydrogen atom, an alkyl group with 1 to 5 carbon atoms, or a halogenated alkyl group with 1 to 5 carbon atoms, and W ^p11 represents a single bond, -O-, -COO-, -OCO- or -CH ₂ -, t ^p11 represents 0, 1 or 2, and when there are multiple R ^p11 , R ^p12 , WP ¹¹ and/or t ^p11 in the molecule, these may be the same or different) , Sp ^p1 and Sp ^p2 each independently represent a single bond or a spacer.

Z ^p1 and Z ^p2 each independently represent a single bond, -O-, -S-, -CH ₂ -, -OCH ₂ -, -CH ₂ O-, -CO-, -C ₂ H ₄ -, -COO-, -OCO-, -OCOOCH ₂ -, -CH ₂ OCOO-, -OCH ₂ CH ₂ O-, -CO-NR ^ZP1 -, -NR ^ZP1 -CO-, ^-SCH ₂ -, -CH ₂ S-, -CH =CR ^ZP1 -COO-, -CH=CR ^ZP1 -OCO-, -COO-CR ^ZP1 =CH-, -OCO-CR ^ZP1 =CH-, -COO-CR ^ZP1 =CH-COO-, -COO-CR ^ZP1 =CH-OCO-, -OCO-CR ^ZP1 =CH-COO-, -OCO-CR ^ZP1 =CH-OCO-, -(CH ₂ ) ₂ -COO-, -(CH ₂ ) ₂ -OCO-, -OCO -(CH ₂ ) ₂ -, -(C=O)-O-(CH ₂ ) ₂ -, -CH=CH-, -CF=CF-, -CF=CH-, -CH=CF-, -CF ₂ -, -CF ₂ O-, -OCF ₂ -, -CF ₂ CH ₂ -, -CH ₂ CF ₂ -, -CF ₂ CF ₂ -or -C≡C- (where R ^ZP1 independently represents hydrogen Atoms or C1-C4 alkyl groups, when there are multiple R ^ZP1 in the molecule, these may be the same or different).

A ^p1 , A ^p2 and A ^p3 each independently represent a group selected from (a ^p ) 1,4-cyclohexylene (one -CH ₂ -present in the group or two or more non-adjacent -CH ₂ -can be Substituted with -O-), (b ^p ) 1,4-phenylene (one -CH= or two or more non-adjacent -CH= in the group can be substituted with -N=), and (C ^p ) Naphthalene-2,6-diyl, naphthalene-1,4-diyl, naphthalene-1,5-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, Decahydronaphthalene-2,6-diyl, phenanthrene-2,7-diyl or anthracene-2,6-diyl (1 -CH= or 2 or more non-adjacent -CH in these groups = Can be substituted with -N=) group in the group (above (a ^p ), group (b ^p ) and group (c ^p ) are independent, the hydrogen atoms in the group can be substituted with halogen Atom, C 1-8 alkyl or C 1-8 alkenyl, cyano or -Sp ^p2 -P ^p2 ).

m ^p1 represents 0, 1, 2, or 3.

When there are a plurality of Z ^p1 , A ^p2 , Sp ^p2 and/or P ^p2 in the molecule, these may be the same or different. Wherein, when m ^p1 is 0 and A ^p1 is the group represented by the group (c ^p ), A ^p3 may be a single bond.

Furthermore, the alignment aid is removed from the polymerizable compound.

R ^{p1 is} preferably -Sp ^p2 -P ^p2 .

P ^p1 and P ^p2 are independent of each other, preferably any of the general formulas (P ^p1 -1) to (P ^p1 -3), more preferably (P ^p1 -1).

R ^p11 and R ^p12 are independent of each other, and are preferably a hydrogen atom or a methyl group.

t ^{p11 is} preferably 0 or 1.

W ^{p11 is} preferably a single bond, -CH ₂ -or -C ₂ H ₄ -.

m ^{p1 is} preferably 0, 1, or 2, preferably 0 or 1.

Z ^p1 and Z ^p2 are independent of each other, preferably a single bond, -OCH ₂ -, -CH ₂ O-, -CO-, -C ₂ H ₄ -, -COO-, -OCO-, -COOC ₂ H _4- , -OCOC ₂ H ₄ -, -C ₂ H ₄ OCO-, -C ₂ H ₄ COO-, -CH=CH-, -CF ₂ -, -CF ₂ O-, -(CH ₂ ) ₂ -COO- , -(CH ₂ ) ₂ -OCO-, -OCO-(CH ₂ ) ₂ -, -CH=CH-COO-, -COO-CH=CH-, -OCOCH=CH-, -COO-(CH ₂ ) ₂ -, -OCF ₂ -or -C≡C-, more preferably a single bond, -OCH ₂ -, -CH ₂ O-, -C ₂ H ₄ -, -COO-, -OCO-, -COOC ₂ H ₄ -, -OCOC ₂ H ₄ -, -C ₂ H ₄ OCO-, -C ₂ H ₄ COO-, -CH=CH-, -(CH ₂ ) ₂ -COO-, -(CH ₂ ) ₂ -OCO -, -OCO-(CH ₂ ) ₂ -, -CH=CH-COO-, -COO-CH=CH-, -OCOCH=CH-, -COO-(CH ₂ ) ₂ -or -C≡C-.

Furthermore, it is preferable that only one of Z ^p1 and Z ^p2 present in the molecule is -OCH ₂ -, -CH ₂ O-, -C ₂ H ₄ -, -COO-, -OCO-, -COOC ₂ H ₄ -, -OCOC ₂ H ₄ -, -C ₂ H ₄ OCO-, -C ₂ H ₄ COO-, -CH=CH-, -(CH ₂ ) ₂ -COO-, -(CH ₂ ) _2- OCO-, -OCO-(CH ₂ ) ₂ -, -CH=CH-COO-, -COO-CH=CH-, -OCOCH=CH-, -COO-(CH ₂ ) ₂ -or -C≡C- , The others are all single bonds, more preferably, only one of Z ^p1 and Z ^p2 existing in the molecule is -OCH ₂ -, -CH ₂ O-, -C ₂ H ₄ -, -COO- or -OCO- , All others are single bonds, and it is more preferred that all Z ^p1 and Z ^P2 existing in the molecule are single bonds.

Also, it is preferable that only one of Z ^p1 and Z ^P2 present in the molecule is selected from -CH=CH-COO-, -COO-CH=CH-, -(CH ₂ ) ₂ -COO-, -( The linking group in the group consisting of CH ₂ ) ₂ -OCO-, -O-CO-(CH ₂ ) ₂ -, -COO-(CH ₂ ) ₂ -, and all others are single bonds.

Sp ^p1 and Sp ^p2 each independently represent a single bond or a spacer, and the spacer is preferably an alkylene group having 1 to 30 carbon atoms. However, the -CH ₂ -in the alkylene group can be substituted by -O-, -CO-, -COO-, -OCO-, -CH=CH- or -C≡C- as long as the oxygen atoms are not directly connected to each other , The hydrogen atom in the alkylene group can be replaced by a halogen atom.

Among them, Sp ^p1 and Sp ^p2 are independent of each other, and are preferably a linear alkylene group having 1 to 10 carbon atoms or a single bond.

A ^p1 , A ^p2 and A ^p3 are independent of each other, preferably 1,4-phenylene or 1,4-cyclohexylene, more preferably 1,4-phenylene.

In order to improve the compatibility with liquid crystal molecules (liquid crystal compounds), the 1,4-phenylene group is preferably substituted with one fluorine atom, one methyl group or one methoxy group.

The amount of the polymerizable compound contained in the liquid crystal composition is preferably from 0.05 to 10% by mass, more preferably from 0.1 to 8% by mass, still more preferably from 0.1 to 5% by mass, and still more preferably from 0.1 to 3% by mass, It is more preferably 0.2 to 2% by mass, still more preferably 0.2 to 1.3% by mass, particularly preferably 0.2 to 1% by mass, and most preferably 0.2 to 0.56% by mass.

The preferred lower limit is 0.01% by mass, 0.03% by mass, 0.05% by mass, 0.08% by mass, 0.1% by mass, 0.15% by mass, 0.2% by mass, 0.25% by mass, and 0.3% by mass . On the other hand, the preferable upper limit value is 10% by mass, 8% by mass, 5% by mass, 3% by mass, 1.5% by mass, 1.2% by mass, 1% by mass, 0.8% by mass, It is 0.5% by mass.

If the amount of the polymerizable compound is small, the effect of adding the polymerizable compound to the liquid crystal composition is not easy to appear. For example, depending on the type of the liquid crystal molecule or the alignment aid, the alignment restriction force for the generation of the liquid crystal molecule is weak or over time Sexual weakness and other problems. On the other hand, if the amount of the polymerizable compound is too large, for example, depending on the illuminance of ultraviolet rays, there may be problems such as increasing the amount of polymerizable compound remaining after curing, time-consuming curing, and reduced reliability of the liquid crystal composition. . Therefore, in consideration of these balances, it is preferable to set the amount of the polymerizable compound.

Preferred examples of the polymerizable compound represented by the general formula (P) include polymerizable compounds represented by the following formulas (P-1-1) to (P-1-46).

In the formula, P ^p11 , P ^p12 , Sp ^p11 and Sp ^p12 represent the same meanings as P ^p1 , P ^p2 , Sp ^p1 and Sp ^p2 in the general formula (P).

Moreover, as a preferable example of the polymerizable compound represented by general formula (P), the polymerizable compound represented by the following formula (P-2-1)-formula (P-2-12) can also be mentioned.

In the formula, P ^p21 , P ^p22 , Sp ^p21 and Sp ^p22 represent the same meanings as P ^p1 , P ^p2 , Sp ^p1 and Sp ^p2 in the general formula (P).

Furthermore, as a preferable example of the polymerizable compound represented by general formula (P), the polymerizable compound represented by following formula (P-3-1)-formula (P-3-15) is mentioned.

In the formula, P ^p31 , P ^p32 , Sp ^p31 and Sp ^p32 represent the same meanings as P ^p1 , P ^p2 , Sp ^p1 and Sp ^p2 in the general formula (P).

Moreover, as a preferable example of the polymerizable compound represented by general formula (P), the polymerizable compound represented by following formula (P-4-1)-formula (P-4-19) can also be mentioned.

In the formula, P ^p41 , P ^p42 , Sp ^p41 and Sp ^p42 represent the same meanings as P ^p1 , P ^p2 , Sp ^p1 and Sp ^p2 in the general formula (P).

In the case of adding a polymerizable monomer, the polymerization will proceed even if there is no polymerization initiator, but in order to promote polymerization, a polymerization initiator may be contained. As the polymerization initiator, benzoin ethers, benzophenones, acetophenones, benzal ketals, phosphine oxides, and the like can be cited. In addition, in order to improve storage stability, stabilizers may be added. Examples of stabilizers that can be used include hydroquinones, hydroquinone monoalkyl ethers, tertiary butylcatechols, pyrogallols, thiophenols, and nitro compounds. , Β-naphthylamines, β-naphthols, nitroso compounds, etc.

The liquid crystal layer of the present invention is useful in liquid crystal display elements, such as AM-LCD (active matrix liquid crystal display element), TN (nematic liquid crystal display element), STN-LCD (super twisted nematic liquid crystal display element), OCB- It is useful in LCD and IPS-LCD (in-plane switching liquid crystal display elements), especially in AM-LCD, and can be used in liquid crystal display elements for PSA mode, PSVA mode, VA mode, IPS mode or ECB mode. ＜Alignment additives＞ The alignment aid has the following functions: to directly contact members (electrodes (such as ITO), substrates (such as glass substrates, acrylic substrates, transparent substrates, flexible substrates, etc.), resin layers ( For example, color filters, alignment films, overcoats, etc.) and insulating films (such as inorganic material films, SiNx, etc.) interact to induce the vertical alignment of the liquid crystal molecules contained in the liquid crystal layer.

The alignment aid preferably has: a polymerizable group for polymerization, a mesogen group similar to liquid crystal molecules, an adsorption group (polar group) that can interact with a member directly abutting the liquid crystal layer, and inducing liquid crystal molecules The alignment inducer of the alignment.

Preferably, the adsorption group and the alignment inducing group are bonded to the mesogen group, and the polymerizable group is directly substituted with the mesogen, the adsorption group and the alignment inducing group via a spacer as necessary. It is particularly preferable that the polymerizable group is substituted into the mesogen group in a state of being incorporated into the adsorption group.

Hereinafter, the * at the left end and the * at the right end in the chemical formula represent bonding bonds.

"Orientation Inducer" The alignment inducing group has the function of inducing the alignment of liquid crystal molecules, and is preferably a group represented by the following general formula (AK).

In the formula, R ^AK1 represents a linear or branched alkyl group having 1 to 20 carbon atoms. However, one of the alkyl groups or two or more non-adjacent -CH ₂ -s may be independently substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, one or two or more hydrogen atoms in the alkyl group can be independently substituted with a halogeno group.

R ^AK1 preferably represents a linear or branched alkyl group with 1 to 20 carbon atoms, more preferably represents a linear alkyl group with 1 to 20 carbon atoms, and more preferably represents a straight chain The alkyl group with 1 to 8 carbon atoms.

In addition, one of the alkyl groups or two or more non-adjacent -CH ₂ -s may be independently substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-.

Furthermore, the hydrogen atom in the alkyl group may be substituted with a fluorine atom or a chlorine atom, and may be substituted with a fluorine atom.

From the viewpoint of imparting so-called amphiphilic intermediary properties to the alignment aid, the alignment inducing group is preferably bonded to the side of the mesogen group opposite to the adsorption group.

"Polymerizable group" in a polymerizable group P ^AP1 - and represented, preferably via -Sp ^AP1 - (a single bond or a spacer group) bonded with mesogenic.

P ^{AP1 is} preferably a group selected from the group represented by the following general formulas (AP-1) to (AP-9).

In the formula, R ^AP1 and R ^AP2 each independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 10 carbon atoms. However, one or two or more -CH ₂ -in the alkyl group can be substituted with -O- or -CO- in a way that the oxygen atom is not directly adjacent, and one or more than two hydrogen atoms in the alkyl group It may be substituted with a halogen atom or a hydroxyl group independently of each.

W ^AP1 represents a single bond, -O-, -COO-, -OCO- or -CH ₂ -.

t ^AP1 represents 0, 1, or 2.

P ^{AP1 is} preferably a group represented by the following general formula (AP-1) to general formula (AP-7), more preferably a group represented by the following general formula (AP-1) or general formula (AP-2) The base is more preferably the general formula (AP-1).

Sp ^AP1 preferably represents a single bond or a linear or branched alkylene group having 1 to 20 carbon atoms, more preferably represents a single bond or a linear or branched alkylene group having 1 to 20 carbon atoms, More preferably, it represents a single bond or a linear alkylene group having 2 to 10 carbon atoms.

In addition, in Sp ^AP1 , one or two or more of -CH ₂ -in the alkylene group can be independently substituted into -CH=CH-, -C≡C-,-without oxygen atoms directly adjacent to each other. O-, -CO-, -COO- or -OCO-.

In the alignment aid, the number of P ^AP1 -Sp ^AP1 -is preferably 1 or more and 5 or less, more preferably 1 or more and 4 or less, more preferably 2 or more and 4 or less, and particularly preferably 2 Or 3, the best is 2.

The hydrogen atoms in P ^AP1 -Sp ^AP1 -may be substituted with polymerizable groups, adsorption groups and/or alignment inducing groups.

P ^AP1 -Sp ^AP1 -can be bonded with polymerizable groups, mesogen groups, adsorption groups and/or alignment inducing groups.

In addition, P ^AP1 -Sp ^AP1 -is preferably bonded to a mesogen, an adsorption group or an alignment inducing group, and more preferably is bonded to a mesogen or an adsorption group.

Furthermore, when there are a plurality of P ^AP1 and/or Sp ^AP1 -in the molecule, they may be the same or different from each other.

"Mesogen" The mesogen group refers to a group with a rigid part, such as a group with more than one cyclic group, preferably a group with 2 to 4 cyclic groups, more preferably a group with 3 to 4 cyclic groups . Furthermore, if necessary, the cyclic group may be linked by a linking group. The mesogen preferably has a skeleton similar to the liquid crystal molecules (liquid crystal compound) used in the liquid crystal layer.

Furthermore, in this specification, "cyclic group" refers to a group of atoms in which the constituent atoms are cyclically bonded, including carbocyclic, heterocyclic, saturated or unsaturated cyclic structures, monocyclic, 2-cyclic structures, poly Ring structure, aromatic, non-aromatic, etc.

In addition, the cyclic group may contain at least one heteroatom, and may further be substituted with at least one substituent (halo group, polymerizable group, organic group (alkyl, alkoxy, aryl, etc.)). In the case of a single ring, the mesogenic group preferably contains two or more single rings.

The mesogen group is preferably represented by the general formula (AL), for example.

In the formula, Z ^AL1 represents a single bond, -CH=CH-, -CF=CF-, -C≡C-, -COO-, -OCO-, -OCOO-, -CF ₂ O-, -OCF ₂ -, -CH=CHCOO-, -OCOCH=CH-, -CH ₂ -CH ₂ COO-, -OCOCH ₂ -CH ₂ -, -CH=C(CH ₃ )COO-, -OCOC(CH ₃ )=CH-, -CH ₂ -CH(CH ₃ )COO-, -OCOCH(CH ₃ )-CH ₂ -, -OCH ₂ CH ₂ O- or an alkylene group with 1 to 20 carbon atoms. However, one or more of -CH ₂ -in the alkylene group can be substituted with -O-, -COO- or -OCO- in such a way that the oxygen atom is not directly adjacent to each other.

A ^AL1 and A ^AL2 each independently represent a divalent cyclic group.

One or more of the hydrogen atoms of Z ^AL1 , A ^AL1 and A ^AL2 can be independently substituted with halogenated groups, adsorbent groups, P ^AP1 -Sp ^AP1 -or monovalent organic groups, and in addition, in the molecule When there are a plurality of Z ^AL1 and A ^AL1 , they may be the same as each other or different.

m ^AL1 represents an integer of 1-5.

In the general formula (AL), Z ^{AL1 is} preferably a single bond or an alkylene having 2 to 20 carbon atoms, more preferably a single bond or an alkylene having 2 to 10 carbon atoms, and still more preferably a single bond, -(CH ₂ ) ₂ -or -(CH ₂ ) ₄ -. One or more of -CH ₂ -in the alkylene group can be substituted with -O-, -COO- or -OCO- in such a way that oxygen atoms are not directly adjacent to each other.

Furthermore, in order to improve the linearity of a rod-shaped molecule, Z ^{AL1 is} preferably a single bond in a form in which a ring and a ring are directly connected, or a form in which the number of atoms directly connecting a ring and a ring is an even number. For example, in the case of -CH ₂ -CH ₂ COO-, the number of atoms directly connecting the ring to the ring is 4.

烷-2,5-二基、四氫噻喃-2,5-二基、噻吩-2,5-二基、1,4-雙環(2.2.2)伸辛基、十氫萘-2,6-二基、吡啶-2,5-二基、嘧啶-2,5-二基、吡

-2,5-二基、噻吩-2,5-二基-、1,2,3,4-四氫萘-2,6-二基、2,6-伸萘基、菲-2,7-二基、9,10-二氫菲-2,7-二基、1,2,3,4,4a,9,10a-八氫菲-2,7-二基、1,4-伸萘基、苯并[1,2-b:4,5-b']二噻吩-2,6-二基、苯并[1,2-b:4,5-b']二硒吩-2,6-二基、[1]苯并噻吩并[3,2-b]噻吩-2,7-二基、[1]苯并硒吩并[3,2-b]硒吩-2,7-二基及茀-2,7-二基所組成之群中之1種，更佳為1,4-伸苯基、1,4-伸環己基、2,6-伸萘基或菲-2,7-二基，進而較佳為1,4-伸苯基或1,4-伸環己基。In the general formula (AL), A ^AL1 and A ^AL2 each independently represent a divalent cyclic group. The divalent cyclic group is preferably selected from 1,4-phenylene, 1,4-cyclohexylene, 1,4-cyclohexenyl, tetrahydropyran-2,5-diyl, 1,3-two

Alkyl-2,5-diyl, tetrahydrothiopyran-2,5-diyl, thiophene-2,5-diyl, 1,4-bicyclo(2.2.2)octyl, decalin-2, 6-diyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, pyridine

-2,5-diyl, thiophene-2,5-diyl-, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, 2,6-naphthylene, phenanthrene-2,7 -Diyl, 9,10-dihydrophenanthrene-2,7-diyl, 1,2,3,4,4a,9,10a-octahydrophenanthrene-2,7-diyl, 1,4-naphthalene Group, benzo[1,2-b:4,5-b']dithiophene-2,6-diyl, benzo[1,2-b:4,5-b']diselenophene-2, 6-diyl, [1]benzothieno[3,2-b]thiophen-2,7-diyl, [1]benzoseleno[3,2-b]selenophene-2,7- One of the group consisting of diyl and -2,7-diyl, more preferably 1,4-phenylene, 1,4-cyclohexylene, 2,6-naphthylene or phenanthrene-2 ,7-diyl, more preferably 1,4-phenylene or 1,4-cyclohexylene.

Furthermore, these groups may be unsubstituted or substituted with substituents. The substituent is preferably a fluorine atom or an alkyl group having 1 to 8 carbon atoms. Furthermore, the alkyl group may be substituted with a fluorine atom or a hydroxyl group.

And the cyclic group of one or two or more of the hydrogen atoms may be substituted with halo, adsorbing group, P ^AP1 -Sp ^AP1 - or a monovalent organic group.

In the general formula (AL), a monovalent organic group is a group that constitutes a chemical structure by forming an organic compound into a monovalent group, and refers to an atomic group obtained by removing one hydrogen atom from an organic compound.

Examples of the monovalent organic group include an alkyl group having 1 to 15 carbon atoms, an alkenyl group having 2 to 15 carbon atoms, an alkoxy group having 1 to 14 carbon atoms, and an alkylene group having 2 to 15 carbon atoms. Group, etc., preferably an alkyl group having 1 to 15 carbon atoms or an alkoxy group having 1 to 14 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms , More preferably an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and particularly preferably an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 2 carbon atoms, Most preferably, it is an alkyl group with 1 or 2 carbon atoms or an alkoxy group with 1 carbon atom.

In addition, one or more of -CH ₂ -of the above-mentioned alkyl, alkenyl, alkoxy, and alkenyloxy groups can be substituted with -O-, -COO- or-so that the oxygen atom is not directly adjacent to each other. OCO-. Furthermore, the above-mentioned monovalent organic group may have a function as the above-mentioned alignment inducing group.

In the above general formula (AL), m ^{AL1 is} preferably an integer of 1-4, more preferably an integer of 1-3, and still more preferably 2 or 3.

As a preferable aspect of the mesogen group, the following formulas (me-1) to (me-44) can be cited.

The general formula (AL) is a structure separated from these compounds with 2 hydrogen atoms.

In the formulas (me-1)～(me-44), one or more hydrogen atoms in the cyclohexane ring, benzene ring or naphthalene ring can be independently substituted with halogenated groups, P ^AP1 -Sp ^AP1 -, a monovalent organic group (for example, an alkyl group with 1 to 15 carbon atoms, an alkoxy group with 1 to 14 carbon atoms), an adsorption group or an alignment inducing group.

Among the above mesogens, the preferred form is the formula (me-8) ~ (me-44), and the more preferred form is the formula (me-8) ~ (me-10), the formula (me-12) ~ (me- 18), formulas (me-22)～(me-24), formulas (me-26)～(me-27) and formulas (me-29)～(me-44), and the more preferred form is formula (me -12), (me-14), (me-16), (me-22)～(me-24), (me-29), (me-34), (me-36)～(me-37 ), (me-42) ~ (me-44).

Among the above mesogens, the most preferred form is the following general formula (AL-1) or (AL-2), and the most preferred form is the following general formula (AL-1).

In the formula, X ^AL101 to X ^AL118 and X ^AL201 to X ^AL214 each independently represent a hydrogen atom, an alkyl group with 1 to 5 carbon atoms, an alkoxy group with 1 to 5 carbon atoms, a halo group, P ^AP1 -Sp ^AP1 -The following adsorption group or the above-mentioned alignment inducing group.

Ring A ^{AL1 1} , ring A ^AL12 and ring A ^AL21 each independently represent a cyclohexane ring or a benzene ring.

Any one or more of X ^AL101 to X ^AL118 and X ^AL201 to X ^{AL214 are} substituted with the following adsorbing groups.

Any one or more of X ^AL101 to X ^AL118 and X ^AL201 to X ^{AL214 are} substituted with the above-mentioned alignment inducing groups.

The following adsorbing groups and the above-mentioned alignment inducing groups can be substituted with P ^AP1 -Sp ^AP1 -.

General formula (AL-1) or general formula (AL-2) has one or more P ^AP1 -Sp ^Ap1 -in its molecule.

In the general formula (AL-1), X ^{AL101 is} preferably the aforementioned alignment inducing group.

In the general formula (AL-1), preferably at least one of X ^AL109 , X ^AL110 and X ^AL111 is the following adsorption group, more preferably X ^AL109 and X ^{AL110 are} both the following adsorption group or X ^AL110 It is the following adsorption group, and X ^AL110 is more preferably the following adsorption group.

In the general formula (AL-1), preferably at least one of X ^AL109 , X ^AL110, and X ^AL111 is P ^AP1 -Sp ^AP1 -in the following adsorbent groups or adsorbent groups with polymerizable parts in the structure , More preferably, both or one of X ^AL109 and X ^AL111 is p ^AP1 -Sp ^AP1 -.

In the general formula (AL-1), one or two of X ^{AL10 4} to X ^{AL10 8} and X ^{AL1 12} to X ^AL116 are each independently, preferably an alkyl group with 1 to 5 carbon atoms, and 1 The alkoxy group or halo group of ~5 is more preferably an alkyl group having 1 to 3 carbon atoms or a fluorine atom. ^{Particularly preferably} , X ^{AL10 5} , X ^AL106 or X ^AL107 are independent of each other and each is an alkyl group with 1 to 3 carbon atoms or a fluorine atom.

In the general formula (AL-2), X ^{AL201 is} preferably the aforementioned alignment inducing group.

In the general formula (AL-2), preferably at least one of X ^AL207 , X ^AL208 and X ^AL209 is the following adsorption group, more preferably X ^AL207 and X ^{AL208 are} both the following adsorption group or X ^AL208 It is the following adsorption group, and more preferably X ^AL208 is the following adsorption group.

In the general formula (AL-2), preferably at least one of X ^AL207 , X ^AL208 and X ^AL209 is P ^AP1 -Sp ^AP1 -in the following adsorbent groups or adsorbent groups with polymerizable parts in the structure , More preferably, both or one of X ^AL207 and X ^AL209 is P ^AP1 -Sp ^AP1 -.

In the general formula (AL-2), preferably one or two of X ^AL202 to X ^AL206 and X ^AL210 to X ^AL214 are each independently, and are an alkyl group with 1 to 5 carbon atoms, and 1 to 5 carbon atoms The alkoxy or halo group is more preferably an alkyl group with 1 to 3 carbon atoms or a fluorine atom. ^{Particularly preferably} , X ^AL204 , X ^AL205 or X ^AL206 are independent of each other and are an alkyl group with 1 to 3 carbon atoms or a fluorine atom.

"Adsorbing Group" The adsorption base is a base that has the function of "adsorbing the substrate, film, electrode, etc. as a layer in contact with the liquid crystal composition, that is, the adsorption medium".

Adsorption is usually divided into chemical adsorption (covalent bond, ionic bond or metal bond) to form a chemical adsorption between the adsorption medium and the adsorbate, and physical adsorption other than chemical adsorption. In this specification, adsorption may be either chemical adsorption or physical adsorption, and physical adsorption is preferred. Therefore, the adsorption base is preferably a base that can be physically adsorbed to the adsorption medium, and more preferably a base that can be bonded to the adsorption medium by intermolecular force.

Examples of the form of bonding to the adsorption medium by intermolecular force include forms of interaction by permanent dipole, permanent quadrupole, dispersion force, charge transfer force, or hydrogen bond.

As a preferable form of the adsorption group, a form that can be bonded to the adsorption medium by a hydrogen bond can be cited. In this case, the adsorbing group can play the role of either the donor or the acceptor of the proton that mediates the hydrogen bond, or it can play the role of both.

The adsorbing group is preferably a group containing a polar element (hereinafter, the "adsorbing group" is also referred to as a "polar group"), and the polar element has an atomic group formed by connecting carbon atoms and heteroatoms. In this specification, the polar element refers to a group of atoms formed by directly connecting carbon atoms and heteroatoms.

The hetero atom is preferably at least one selected from the group consisting of N, O, S, P, B and Si, more preferably at least one selected from the group consisting of N, O and S, Furthermore, it is preferably at least one selected from the group consisting of N and O, and O is particularly preferred.

In addition, in the alignment aid, the valence of the polar elements is not particularly limited, and is monovalent, divalent, trivalent, etc., and the number of polar elements in the adsorbing group is also not particularly limited.

The alignment aid preferably has 1 to 8 adsorption groups in one molecule, more preferably has 1 to 4 adsorption groups, and more preferably has 1 to 3 adsorption groups.

Further, the adsorption group include a polymerizable group and not to the ligand-induced group, but a hydrogen atom is substituted with the group adsorbing to P ^AP1 -Sp ^AP1 - the structure and P ^AP1 -Sp ^AP1 - of the hydrogen atoms are substituted with the -OH The structure is contained in the adsorption base.

Adsorbent groups contain one or more polar elements, and are roughly divided into cyclic base type and chain base type.

The cyclic base type is a form that includes a polar element in its structure and includes a cyclic group with a cyclic structure, and the chain base type is a form that includes a polar element in its structure and does not include a cyclic group with a cyclic structure.

The chain base type is a form in which a linear or branched chain base has polar elements, and may have a cyclic structure that does not contain polar elements in a part of it.

The cyclic base type adsorbing group means a form having a structure containing at least one polar element in the cyclic atomic arrangement.

Furthermore, in this specification, the cyclic group is as described above. Therefore, the cyclic group type adsorption group only needs to include a cyclic group containing a polar element, and the entire adsorption group may be branched or linear.

On the other hand, the chain-based adsorbing group means a form with a structure that does not contain a ring-shaped atomic arrangement containing polar elements in the molecule, and contains at least one linear atomic arrangement (which can be branched) Polar element.

Furthermore, in the present specification, the chain group refers to an atomic group that does not contain cyclic atoms in the structural formula and the constituent atoms are linearly (branched) bonded, and refers to an acyclic group. In other words, the chain group refers to a linear or branched aliphatic group, and it may contain either a saturated bond or an unsaturated bond.

Therefore, the chain group may include, for example, an alkyl group, an alkenyl group, an alkoxy group, an ester group, an ether group, or a keto group. Furthermore, the hydrogen atoms in these groups can be substituted with at least one substituent (reactive functional groups (vinyl, acryl, methacryl, etc.), chain organic groups (alkyl, cyano, etc.) Wait)). In addition, the chain group may be either linear or branched.

As the cyclic radical type adsorbing group, a heteroaromatic group having 3 to 20 carbon atoms (including a condensed ring) or a heteroalicyclic group having 3 to 20 carbon atoms (including a condensed ring) is preferred, and more preferred is Heteroaromatic group with 3-12 carbon atoms (including condensed ring) or heteroalicyclic group with 3-12 carbon atoms (including condensed ring), more preferably 5-membered heteroaromatic group, 5-membered Ring heteroalicyclic group, 6-membered ring heteroaromatic group or 6-membered ring heteroalicyclic group. Furthermore, the hydrogen atoms in these ring structures may be substituted with halogenated groups, linear or branched alkyl groups or alkoxy groups having 1 to 5 carbon atoms.

As the chain type adsorbing group, a linear or branched alkyl group having 1 to 20 carbon atoms in which the hydrogen atom or -CH ₂ -in the structure is substituted with a polar element is preferred. Furthermore, one of the alkyl groups or two or more non-adjacent -CH ₂ -s may be substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO- or- OCO-. In addition, the chain-based adsorption group preferably contains one or more polar elements at its end.

The hydrogen atom in the adsorbent group may be substituted with a polymerizable group.

Specific examples of polar elements include: polar elements containing oxygen atoms (hereinafter, oxygen-containing polar elements), polar elements containing nitrogen atoms (hereinafter, nitrogen-containing polar elements), and polar elements containing phosphorus atoms (hereinafter, containing Phosphorus polar elements), polar elements containing boron atoms (hereinafter, polar elements containing boron), polar elements containing silicon atoms (hereinafter, polar elements containing silicon), or polar elements containing sulfur atoms (hereinafter, polar elements containing sulfur). From the viewpoint of adsorption energy, the polar element is preferably a nitrogen-containing polar element or an oxygen-containing polar element, and more preferably an oxygen-containing polar element.

The oxygen-containing polar element is preferably at least one group selected from the group consisting of a hydroxyl group, a hydroxyalkyl group, an alkoxy group, a carboxyl group, an ether group, a carbonyl group, a carbonate group, and an ester group, or the A group linked to a carbon atom.

The nitrogen-containing polar element is preferably at least one group selected from the group consisting of a cyano group, a primary amino group, a secondary amino group, a tertiary amino group, a pyridyl group, an aminomethyl group, and a ureido group, or the A group linked to a carbon atom.

Therefore, the adsorbing group is preferably selected from a cyclic group having an oxygen-containing polar element (hereinafter, an oxygen-containing cyclic group), a cyclic group having a nitrogen-containing polar element (hereinafter, a nitrogen-containing cyclic group), and One or two or more types of chain groups of oxygen-containing polar elements (hereinafter, oxygen-containing chain groups) and chain groups with nitrogen-containing polar elements (hereinafter, nitrogen-containing chain groups) The body may contain the base.

As the oxygen-containing cyclic group, it is preferable to include any one of the following groups having an oxygen atom in the form of an ether group in the ring structure.

Moreover, as an oxygen-containing cyclic group, it is preferable to contain any of the following groups which have an oxygen atom in the form of a carbonyl group, a carbonate group, and an ester group in a ring structure.

The nitrogen-containing cyclic group preferably includes any one of the following groups.

The oxygen-containing chain group preferably contains any one of the following groups.

In the formula, R ^at1 represents an alkyl group having 1 to 5 carbon atoms.

Z ^at1 represents a single bond, a linear or branched alkylene group having 1 to 15 carbon atoms, or a linear or branched alkenylene group having 2 to 18 carbon atoms. However, -CH ₂ -in the alkylene group or alkenylene group can be substituted with -O-, -COO-, -C(=O)-, -OCO- in such a way that the oxygen atom is not directly adjacent to each other.

X ^at1 represents a hydrogen atom or an alkyl group having 1 to 15 carbon atoms. However, -CH ₂ -in the alkyl group can be substituted with -O-, -COO-, -C(=O)-, -OCO- in such a way that the oxygen atom is not directly adjacent to each other.

The nitrogen-containing chain group preferably contains any one of the following groups.

In the formula, R ^at , R ^bt , R ^ct and R ^dt each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.

As the adsorption group, a group represented by the following general formula (AT) is preferred.

In the formula, Sp ^AT1 represents a single bond, a linear or branched alkylene group having 1 to 25 carbon atoms. However, the hydrogen atom in the alkylene group can be substituted with -OH, -CN, -w ^AT1 -Z ^AT1 or P ^AP1 -Sp ^AP1 -, and the -CH ₂ -in the alkylene group can not be directly bonded with oxygen atom The method is substituted with cyclic group, -O-, -COO-, -C(=O)-, -OCO-, -CH=CH-.

W ^AT1 represents a single key or the following general formula (WAT1) or (WAT2).

Z ^AT1 represents a monovalent base containing polar elements. However, the hydrogen atom in Z ^AT1 can also be substituted with -OH, -CN or P ^AP1 -Sp ^AP1 -.

(In the formula, Sp ^WAT1 and Sp ^WAT2 each independently represent a single bond, a linear or branched alkylene group with 1 to 25 carbon atoms, and the hydrogen atom in the alkylene group can be substituted with -OH, -CN Or P ^AP1 -Sp ^AP1 -, the -CH ₂ -in the alkylene group can be substituted into a cyclic group without the oxygen atom directly adjacent to each other, -O-, -COO-, -C(=O)-,- OCO- or -CH=CH-), Sp ^AT1 , Sp ^WAT1 and Sp ^WAT2 are independent of each other, and preferably represent a single bond or a linear or branched alkylene having 1 to 20 carbon atoms, more preferably It represents a single bond or a linear alkylene group having 1 to 20 carbon atoms, and more preferably represents a single bond or a linear alkylene group having 2 to 10 carbon atoms.

In addition, in Sp ^AT1 , Sp ^WAT1, and Sp ^WAT2 , one or two or more of -CH ₂ -in the alkylene group can be independently substituted with -CH=CH-,-in such a way that oxygen atoms are not directly adjacent to each other. C≡C-, -O-, -CO-, -COO- or -OCO-.

In addition, the hydrogen atoms in Sp ^AT1 and Sp ^WAT1 can be independently substituted with -W ^AT1 -Z ^AT1 or P ^AP1 -Sp ^AP1 -.

Z ^AT1 represents a monovalent group containing a polar element, and is preferably a group represented by the following general formula (ZAT1-1) or (ZAT1-2).

In the formula, Sp ^ZAT11 and Sp ^ZAT12 each independently represent a single bond, a linear or branched alkylene group having 1 to 25 carbon atoms. However, the hydrogen atom in the alkylene group can be substituted with -OH, -CN, -Z ^ZAT11 -R ^ZAT11 or p ^AP1 -Sp ^AP1 -, the -CH ₂ -in the alkylene group can be directly adjacent to it with an oxygen atom The mode is substituted with cyclic group, -O-, -COO-, -C(=O)-, -OCO- or -CH=CH-.

Z ^ZAT11 represents a base containing polar elements.

The structure represented by the ring containing Z ^ZAT12 in the general formula (ZAT1-2) represents a 5- to 7-membered ring.

The hydrogen atoms in Z ^ZAT11 and Z ^ZAT12 can be substituted with -OH, -CN or P ^AP1 -Sp ^AP1 -.

R ^ZAT11 and R ^ZAT12 each independently represent a hydrogen atom and a linear or branched alkyl group having 1 to 8 carbon atoms. However, the hydrogen atom in the alkyl group can be substituted with -OH, -CN or P ^AP1 -Sp ^AP1 -, and the -CH ₂ -in the alkyl group can be substituted with a cyclic group without the oxygen atom directly adjacent to it,- O-, -COO-, -C(=O)-, -OCO-, -CH=CH- or -Z ^ZAT11 -.

The group represented by the general formula (ZAT1-1) is preferably a group represented by the following general formulas (ZAT1-1-1) to (ZAT1-1-30).

In the formula, the hydrogen atom bonded to the carbon atom can be substituted with -OH, -CN or P ^AP1 -Sp ^{AP 1} -.

Sp ^ZAT11 represents a single bond, a linear or branched alkylene group having 1 to 25 carbon atoms. However, the hydrogen atom in the alkylene group can be substituted with -OH, -CN, -Z ^ZAT11 -R ^ZAT11 or P ^AP1 -Sp ^AP1 -, the -CH ₂ -in the alkylene group can be directly adjacent to it with an oxygen atom The mode is substituted with cyclic group, -O-, -COO-, -C(=O)-, -OCO- or -CH=CH-.

R ^ZAT11 represents a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms. However, the hydrogen atom in the alkyl group can be substituted with -OH, -CN, -Sp ^AT1 -W ^AT1 -Z ^AT1 or P ^AP1 -Sp ^AP1 -, the -CH ₂ -in the alkyl group can be directly adjacent to the oxygen atom The method is substituted with cyclic group, -O-, -COO-, -C(=O)-, -OCO-, -CH=CH- or -Z ^ZAT11 -.

The group represented by the general formula (ZAT1-2) is preferably a group represented by the following general formulas (ZAT1-2-1) to (ZAT1-2-9).

In the formula, the hydrogen atom to which the carbon atom is bonded can be substituted with a halogen atom, -OH, -CN or P ^AP1 -Sp ^AP1 -.

Sp ^ZAT11 represents a single bond, a linear or branched alkylene group having 1 to 25 carbon atoms. However, the hydrogen atom in the alkylene group can be substituted with -OH, -CN or P ^AP1 -Sp ^AP1 -, and the -CH ₂ -in the alkylene group can be substituted with a cyclic group without the oxygen atom directly adjacent to it. , -O-, -COO-, -C(=O)-, -OCO-, -CH=CH- or -Z ^ZAT11 -.

As the group represented by the general formula (ZAT1-1), the following groups can be cited.

In the formula, R ^tc represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or P ^AP1- SP ^AP1- . However, the hydrogen atom in the alkyl group can be substituted with -OH, -CN or P ^AP1 -Sp ^AP1 -, and the -CH ₂ -in the alkyl group can be substituted with a cyclic group without the oxygen atom directly adjacent to it,- O-, -COO-, -C(=O)-, -OCO-, -CH=CH- or -Z ^ZAT11 -.

The hydrogen atom in the molecule can be replaced with P ^AP1 -Sp ^AP1 -.

* Indicates a bonding key.

^{Among the} above-mentioned preferred bases for Z ^AT1 , in terms of ensuring storage stability by being stably mixed in the liquid crystal composition and exhibiting a good alignment restriction force generated by a moderately high adsorption force to the adsorption medium, Particularly preferred is a group containing OH. Moreover, as the mesogen, a combination with (AL-1) is particularly preferred.

The alignment aid is preferably in a form in which the polar elements contained in the adsorbent group or the polar elements contained in the polymerizable group locally exist. The adsorption group is an important structure used to align the liquid crystal molecules vertically. By adjoining the adsorption group and the polymerizable group, better alignment can be obtained, and it is also due to the good solubility of the liquid crystal composition.

Specifically, the alignment aid is preferably in a form having a polymerizable group and an adsorption group on the same ring of the mesogen. This form includes the following forms: one or more polymerizable groups and one or more adsorbent groups are respectively bonded to the same ring; and at least one of more than one polymerizable groups or at least one of more than one adsorbent groups One of 1 is bonded to the other, and has a polymerizable group and an adsorption group on the same ring.

Moreover, in this case, the hydrogen atom in the spacer bonded to the polymerizable group may be substituted with an adsorbent group, and further, the hydrogen atom in the adsorbent group may be substituted on the polymerizable group via the spacer.

As the alignment aid (spontaneous alignment compound), a compound represented by the following general formula (SAL) is preferred.

In the formula, the hydrogen atom bonded to the carbon atom can be substituted with a linear or branched alkyl group with 1 to 25 carbon atoms, -OH, -CN, -Sp ^AT1 -W ^AT1 -Z ^AT1 or P ^AP1 -Sp ^AP1 -. However, the hydrogen atom in the alkyl group can be substituted with -OH, -CN, -Sp ^AT1 -w ^AT1 -Z ^AT1 or p ^AP1 -Sp ^AP1 -, the -CH ₂ -in the alkyl group can be directly bonded with the oxygen atom The way of binding is substituted with cyclic group, -O-, -COO-, -C(=O)-, -OCO- or -CH=CH-.

R ^AK1 means the same meaning as R ^AK1 in the general formula (AK).

A ^AL1 and A ^AL2 independently represent the same meaning as A ^AL1 and A ^AL2 in the general formula (AL).

Z ^AL1 means the same meaning as Z ^AL1 in the general formula (AL).

m ^AL1 means the same meaning as m ^AL1 in the general formula (AL).

Sp ^AT1 means the same meaning as Sp ^AT1 in the general formula (AT).

W ^AT1 means the same meaning as W ^AT1 in the general formula (AT).

Z ^AT1 means the same meaning as Z ^AT1 in the general formula (AT).

The compound represented by general formula (SAL) is preferably a compound represented by the following formulas (SAL-1.1) to (SAL-2.9).

The amount of the alignment aid contained in the liquid crystal composition is preferably about 0.01-10% by mass. With regard to the more preferable lower limit, from the viewpoint of better aligning the liquid crystal molecules, they are 0.05% by mass and 0.1% by mass. On the other hand, the better upper limit value is 7 mass%, 5 mass%, 4 mass%, 3 mass%, and 1 mass% from the viewpoint of improving response characteristics. By adopting the structure of the present invention, a sufficient amount of alignment aid can be dissolved in the liquid crystal composition.

The total content of the above-mentioned alignment aids is preferably 0.05-10%, preferably 0.1-8%, and preferably 0.1-5%, relative to the composition containing the above-mentioned alignment aids of the present application, Preferably, it contains 0.1-3%, preferably 0.2-2%, preferably 0.2-1.3%, preferably 0.2-1%, preferably 0.2-0.56%.

The preferable lower limit of the total content of the aforementioned alignment aids is 0.01%, 0.03%, 0.05%, and 0.08% relative to the composition of the present application containing the compound represented by the general formula (P). 0.1%, 0.15%, 0.2%, 0.25%, 0.3%.

The preferable upper limit of the total content of the aforementioned alignment aids is 10%, 8%, 5%, and 3% relative to the composition containing the compound represented by the general formula (P) of the present application. 1.5%, 1.2%, 1%, 0.8%, 0.5%.

If the content is small, problems such as the effect of adding the above-mentioned alignment aids and the spontaneous orientation of the liquid crystal composition are weakened are not easy to occur, and if the content is too large, problems such as the reliability of the liquid crystals will decrease. Therefore, the content is set in consideration of the balance of these. ＜Color filter＞ The color filter of the present invention is composed of a black matrix and at least RGB three-color pixel portions. As a color material, the RGB three-color pixel portion contains a diketopyrrolopyrrole pigment and/or oil-soluble anionic red in the R pixel portion. One or more of organic dyes, contained in the G pixel portion, selected from the group consisting of halogenated phthalocyanine pigments, phthalocyanine green dyes, phthalocyanine blue dyes, and azo yellow organic dyes At least one of them contains one or more selected from ε-type copper phthalocyanine pigments and/or cationic blue organic dyes in the B pixel portion. (R pixel part) Preferably, the diketopyrrolopyrrole pigment in the R pixel portion is CI Pigment Red 254, CI Pigment Red 255, CI Pigment Red 264, brominated diketopyrrolopyrrole pigment, and the solvent-based red organic dye is CI Solvent Red 52 , CI Solvent Red 111, CI Solvent Red 124, CI Solvent Red 135, CI Solvent Red 141, CI Solvent Red 145, CI Solvent Red 151, CI Solvent Red 179.

Preferably, the R pixel portion further contains selected from CI Pigment Red 177, CI Pigment Red 242, CI Pigment Red 166, CI Pigment Red 167, CI Pigment Red 179, CI Pigment Orange 38, CI Pigment Orange 71, CI Pigment Yellow 150, CI Pigment Yellow 215, CI Pigment Yellow 185, CI Pigment Yellow 138, CI Pigment Yellow 139, CI Solvent Red 89, CI Solvent Orange 56, CI Solvent Yellow 21, CI Solvent Yellow 82, CI Solvent Yellow 83:1 At least one organic dye from the group consisting of CI Solvent Yellow 33 and CI Solvent Yellow 162 is mixed. (G pixel part) Preferably, the halogenated phthalocyanine pigment in the G pixel portion is CI Pigment Green 7, CI Pigment Green 36, CI Pigment Green 58, CI Pigment Green 59, CI Pigment Green 62, CI Pigment Green 63, and the phthalocyanine green dye is In the dye represented by the following general formula (PIG-1), the phthalocyanine blue dye is CI solvent blue 67, and the azo yellow organic dye is CI solvent yellow 162.

(In the formula, in the general formula (PIG-1), X ¹ⁱ ~ X ¹⁶ⁱ represent hydrogen atom, fluorine atom, chlorine atom, bromine atom or general formula (PIG-2), (PIG-3), (PIG-4 ), (PIG-5). The four X atoms bonded to a benzene ring can be the same or different; M is the central metal, which means Zn, Cu, Mg, Ca, Sr, Ba, Mn, Co, Ni, Pd, Pt, Sn, Fe, InCl, VCl.X 17i represents oxygen, sulfur, sulfone (-SO ₂ -). X ¹⁸ⁱ represents a hydrogen atom, an alkyl group may have a substituent group of carbon number of 1 to 29, carbon atoms 2 To 20 alkenyl, carbon 3 to 30 alkynyl, carbon 3 to 30 cycloalkyl, carbon 3 to 30 cycloalkenyl, carbon 6 to 30 cycloalkynyl, or carbon 6 to The aryl group of 30. k is an integer from 1 to 5.)

Preferably, the G pixel portion further contains selected from CI Pigment Yellow 150, CI Pigment Yellow 215, CI Pigment Yellow 185, CI Pigment Yellow 138, CI Solvent Yellow 21, CI Solvent Yellow 82, CI Solvent Yellow 83:1, At least one organic dye from the group consisting of CI Solvent Yellow 33 is mixed. (B pixel part) Preferably, the ε-type copper phthalocyanine pigment in the B pixel portion is C.I. Pigment 15:6, and the cationic blue organic dye is a dye represented by the following general formulas (PIG-6) and (PIG-7).

系染料、C.I.顏料藍1、C.I.顏料紫23、C.I.鹼性藍7、C.I.鹼性紫10、C.I.酸性藍1、C.I.酸性藍90、C.I.酸性藍83、C.I.直接藍86所組成之群中之至少1種有機染顏料並進行混合化。(In the formula, R ^1j to R ^6j each independently represent a hydrogen atom, an optionally substituted alkyl group having 1 to 8 carbon atoms, or an optionally substituted aryl group; R ^1j to R ^6j indicate optionally substituted In the case of an alkyl group, adjacent R ^1j and R ^2j , R ^3j and R ^4j , R ^5j and R ^6j may be bonded to form a ring structure; R ^7j and R ^8j each independently represent a hydrogen atom, a halogen atom, or may have The substituent is an alkyl group having 1 to 8 carbon atoms; Z ^1j represents an alkyl group having 4 to 12 carbon atoms, or -R ^7j -B ^1j -R ^8j -; R ^7j and R ^8j each independently represent a carbon that may have a substituent Alkyl group of ^2-8 ; [A] ^b- represents any b-valent anion; a represents an integer of 2 or more; b represents an integer of 2 or more) It is preferably contained in the B pixel portion and is selected from 𠮿

Dyestuff, CI Pigment Blue 1, CI Pigment Violet 23, CI Basic Blue 7, CI Basic Violet 10, CI Acid Blue 1, CI Acid Blue 90, CI Acid Blue 83, CI Direct Blue 86 At least one kind of organic dyes and pigments are mixed.

Furthermore, it is also preferable that the color filter is composed of a black matrix, RGB three-color pixel portions, and a Y pixel portion, and the Y pixel portion contains selected from CI Pigment Yellow 150, CI Pigment Blue 215, CI Pigment Blue 185, At least one yellow organic dye from the group consisting of CI Pigment Blue 138, CI Pigment Blue 139, CI Solvent Yellow 21, 82, CI Solvent Yellow 83:1, CI Solvent Yellow 33 and CI Solvent Yellow 162 is used as a colorant.

Regarding the chromaticity x and chromaticity y of each pixel in the color filter of the present invention in the XYZ color system under the C light source, the voltage retention rate (VHR) of the liquid crystal layer (VHR) and the ion density (ID) are prevented From the viewpoint of increasing and suppressing display defects such as white spots, uneven alignment, and afterimages, the following is preferable.

The chromaticity x in the XYZ color system under the C light source of the R pixel is preferably 0.58～0.69, more preferably 0.62～0.68, and the chromaticity y is preferably 0.30～0.36, more preferably 0.31～0.35, more preferably The chromaticity x is 0.58 to 0.69 and the chromaticity y is 0.30 to 0.36, and more preferably the chromaticity x is 0.62 to 0.68 and the chromaticity y is 0.31 to 0.35.

The chromaticity x of the XYZ color system of the G pixel portion under the C light source is preferably 0.19 to 0.35, more preferably 0.20 to 0.29, and the chromaticity y is preferably 0.54 to 0.76, more preferably 0.64 to 0.74, more preferably The chromaticity x is 0.19 to 0.35 and the chromaticity y is 0.54 to 0.76, more preferably the chromaticity x is 0.20 to 0.29 and the chromaticity y is 0.64 to 0.74.

The chromaticity x of the XYZ colorimetric system of the B pixel portion under the C light source is preferably 0.12～0.20, more preferably 0.13～0.18, and the chromaticity y is preferably 0.04～0.12, more preferably 0.05～0.09, more preferably The chromaticity x is 0.12 to 0.18 and the chromaticity y is 0.04 to 0.12, more preferably the chromaticity x is 0.13 to 0.17 and the chromaticity y is 0.04 to 0.09.

The chromaticity x of the Y pixel part in the XYZ color system under C light source is preferably 0.46～0.50, more preferably 0.47～0.48, and chromaticity y is preferably 0.48～0.53, more preferably 0.50～0.52, more preferably The chromaticity x is 0.46 to 0.50 and the chromaticity y is 0.48 to 0.53, more preferably the chromaticity x is 0.47 to 0.48 and the chromaticity y is 0.50 to 0.52.

Here, XYZ color system refers to the color system that was recognized as a standard color system in CIE (International Commission on Illumination) in 1931.

The chromaticity of each of the above-mentioned pixels can be adjusted by changing the types of dyes used or the mixing ratio of these. For example, in the case of R pixel, it can be adjusted by adding yellow dye and/or orange pigment in an appropriate amount to the red dye. In the case of G pixel, it can be adjusted by adding yellow dye in an appropriate amount to the green dye. The pigment is adjusted. In the case of B pixel, it can be adjusted by adding a purple dye or a yellowish blue dye in an appropriate amount to the blue dye. In addition, it can also be adjusted by appropriately adjusting the particle size of the pigment.

Regarding the color filter, a previously known method can be used to form the color filter pixel portion. A representative method for forming the pixel portion is photolithography, which is a method of applying the photocurable composition of the postscript to the surface of the transparent substrate for the color filter on the side where the black matrix is provided , And heat and dry (pre-baking), then, irradiate ultraviolet rays through the mask, thereby performing pattern exposure to harden the photocurable compound at the position corresponding to the pixel portion, and then use the developer to remove the unexposed Partial development is performed to remove the non-pixel portion and fix the pixel portion to the transparent substrate. Using this method, a pixel portion composed of a cured colored film of a photocurable composition can be formed on a transparent substrate.

The photocurable composition of the postscript can be prepared one by one for pixels of other colors such as R pixels, G pixels, B pixels, and Y pixels as needed, and repeating the above operations to produce R pixels, G pixels, The color filter of the colored pixel of B pixel and Y pixel.

As a method of applying the photocurable composition described later on a transparent substrate such as glass, for example, a spin coating method, a slit coating method, a roll coating method, an inkjet method, etc. can be cited.

The drying conditions of the coating film of the photocurable composition applied on the transparent substrate vary depending on the type of each component, the blending ratio, etc., and are usually 50 to 150°C for about 1 to 15 minutes. Moreover, as the light used in the photocuring of the photocurable composition, it is preferable to use ultraviolet light or visible light in the wavelength range of 200 to 500 nm. Various light sources that emit light in this wavelength range can be used.

Examples of the development method include a flooding method, a dipping method, and a spray method. After exposure and development of the photocurable composition, the transparent substrate forming the pixel portion of the desired color is washed with water and dried. Regarding the color filter obtained in this way, heat treatment (post-baking) at 90 to 280°C for a specific time using a heating device such as a hot plate and an oven to remove volatile components in the colored coating film The unreacted photocurable compound remaining in the cured colored film of the photocurable composition is thermally cured to complete the color filter.

The color material for the color filter of the present invention can be used with the liquid crystal composition of the present invention to provide a liquid crystal display device, which prevents the decrease of the voltage retention rate (VHR) of the liquid crystal layer and the increase of the ion density (ID). White spots, uneven alignment, afterimages, etc. display poor problems.

As a manufacturing method of the above-mentioned photocurable composition, the following method is generally used: the pigment composition for color filters of the present invention, an organic solvent, and a dispersant are used as essential components, and these are mixed and stirred and dispersed to become To be uniform, the pigment dispersion used to form the pixel portion of the color filter is first prepared, and then a photocurable compound, and optionally a thermoplastic resin or a photopolymerization initiator, etc., are added to the photocurable composition.

The organic solvent used here includes, for example, aromatic solvents such as toluene, xylene, and methoxybenzene; ethyl acetate or propyl acetate or butyl acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether Acetate solvents such as acetate, diethylene glycol methyl ether acetate, diethylene glycol ethyl ether acetate, diethylene glycol propyl ether acetate, and diethylene glycol butyl ether acetate; Propionate solvents such as ethyl ethoxylate; alcoholic solvents such as methanol and ethanol; ether solvents such as butyl siloxol, propylene glycol monomethyl ether, diethylene glycol ethyl ether, and diethylene glycol dimethyl ether; Ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; aliphatic hydrocarbon solvents such as hexane; N,N-dimethylformamide, γ-butyrolactamide, N- Nitrogen compound solvents such as methyl-2-pyrrolidone, aniline and pyridine; lactone solvents such as γ-butyrolactone; amines such as a 48:52 mixture of methyl carbamate and ethyl carbamate Base formate and so on.

As the dispersant used here, for example, it can contain BYK-Chemie's DISPERBYK 130, DISPERBYK 161, DISPERBYK 162, DISPERBYK 163, DISPERBYK 170, DISPERBYK 171, DISPERBYK 174, DISPERBYK 180, DISPERBYK 182, DISPERBYK 183, DISPERBYK 184 , DISPERBYK 185, DISPERBYK 2000, DISPERBYK 2001, DISPERBYK 2020, DISPERBYK 2050, DISPERBYK 2070, DISPERBYK 2096, DISPERBYK 2150, DISPERBYK LPN21116, DISPERBYK LPN6919, Lubrizol’s Solsperse 3000, Solsperse 13940, Solsperse 13940, Solsperse 13940, Solsperse 13940 17000, 18000, Solsperse 20000, Solsperse 21000, Solsperse 20000, Solsperse 24000, Solsperse 26000, Solsperse 27000, Solsperse 28000, Solsperse 32000, Solsperse 36000, Solsperse 37000, Solsperse 38000, Solsperse 41000, Solsperse 42000, Solsperse 42000, Solsperse 42000 54000, Solsperse 71000, Ajisper PB711, Ajisper PB821, Ajisper PB822, Ajisper PB814, Ajisper PN411, Ajisper PA111 and other dispersants of Ajinomoto Co., Ltd., or acrylic resin, urethane resin, alkyd resin, wood Rosin, rosin gum, tall oil rosin and other natural rosin, polymerized rosin, disproportionated rosin, hydrogenated rosin, oxidized rosin, maleated rosin and other modified rosin, rosin amine, lime rosin, rosin alkylene oxide adduct , Rosin alkyd adducts, rosin-modified phenol and other rosin derivatives are liquid and water-insoluble synthetic resins at room temperature. The addition of these dispersants or resins also contributes to the reduction of flocculation, the improvement of the dispersion stability of the pigment, and the improvement of the viscosity characteristics of the dispersion.

In addition, as a dispersion aid, it may also contain organic pigment derivatives such as phthalimide methyl derivatives, sulfonic acid derivatives, N-(dialkylamino)methyl derivatives, Its N-(dialkylaminoalkyl)sulfonamide derivatives, etc. Of course, these derivatives can also be used in combination of two or more different types.

Examples of thermoplastic resins used in the preparation of the photocurable composition include urethane resins, acrylic resins, polyamide resins, polyimide resins, and styrene maleic acid resins. , Styrene maleic anhydride resin, etc.

As the photocurable compound, for example, 1,6-hexanediol diacrylate, ethylene glycol diacrylate, neopentyl glycol diacrylate, triethylene glycol diacrylate, bis(acryloyloxy Ethoxy) Bifunctional monomers such as bisphenol A and 3-methylpentanediol diacrylate; and trimethylolpropane triacrylate, neopentylerythritol triacrylate, tris[2-( (Meth) propylene oxyethyl) isocyanurate, dineopentaerythritol hexaacrylate, dineopentaerythritol pentaacrylate and other relatively small molecular weight multifunctional monomers, polyester acrylate, Polyfunctional monomers with relatively large molecular weights such as polyacrylate urethane and polyether acrylate.

、1,3-雙(4'-疊氮苯亞甲基)-2-丙烷、1,3-雙(4'-疊氮苯亞甲基)-2-丙烷-2'-磺酸、4,4'-二疊氮茋-2,2'-二磺酸等。作為市售之光聚合起始劑，例如有BASF公司製造之「Irgacure（商標名）-184」、「Irgacure（商標名）-369」、「Darocure（商標名）-1173」、BASF公司製造之「Lucirin-TPO」、日本化藥公司製造之「kayacure-（商標名）DETX」、「kayacure-（商標名）OA」、Stouffer公司製造之「Vicure-10」、「Vicure-55」、Akzo公司製造之「TRIGONAL PI」、SANDOZ公司製造之「Sandoray 1000」、Upjohn公司製造之「Deap」、KUROGANE KASEI公司製造之「biimidazole」等。As the photopolymerization initiator, for example, acetophenone, benzophenone, benzil dimethyl ketal, benzyl peroxide, 2-chloro 9-oxysulfur 𠮿

, 1,3-bis(4'-azidobenzylidene)-2-propane, 1,3-bis(4'-azidobenzylidene)-2-propane-2'-sulfonic acid, 4 ,4'-Diazide stilbene-2,2'-disulfonic acid, etc. As a commercially available photopolymerization initiator, there are, for example, "Irgacure (trade name)-184", "Irgacure (trade name)-369", "Darocure (trade name)-1173" manufactured by BASF, and BASF manufactured "Lucirin-TPO", "kayacure- (trade name) DETX", "kayacure- (trade name) OA" manufactured by Nippon Kayaku Co., Ltd., "Vicure-10" manufactured by Stouffer, "Vicure-55", Akzo "TRIGONAL PI" manufactured by SANDOZ, "Sandoray 1000" manufactured by SANDOZ, "Deap" manufactured by Upjohn, "biimidazole" manufactured by KUROGANE KASEI, etc.

In addition, a known and commonly used photosensitizer may be used in combination with the above-mentioned photopolymerization initiator. Examples of photosensitizers include amines, ureas, compounds having sulfur atoms, compounds having phosphorus atoms, compounds having chlorine atoms, nitriles, or other compounds having nitrogen atoms. These can be used individually or in combination of 2 or more types.

The blending rate of the photopolymerization initiator is not particularly limited, but it is preferably in the range of 0.1 to 30% based on the mass basis of the compound having a photopolymerizable or photocurable functional group. If it is less than 0.1%, there is a tendency for the sensitivity to decrease during photocuring, and if it exceeds 30%, there is a case where the crystals of the photopolymerization initiator precipitate when the coating film of the pigment dispersion resist is dried. Causes deterioration of coating film properties.

The above-mentioned materials can be used to make the organic solvent and 1-100 parts of the organic solvent and 1-100 parts of the dispersant per 100 parts of the pigment composition for the color filter of the present invention uniform on a mass basis. Stir and disperse in the same way to obtain the above-mentioned dye solution. Then, a total of 3 to 20 parts of thermoplastic resin and photocurable compound per part of the pigment composition for color filters of the present invention, and per part of photocurable compound can be added to the pigment dispersion. It is 0.05 to 3 parts of the photopolymerization initiator, and if necessary, an organic solvent is further added, and the mixture is stirred and dispersed so as to become uniform to obtain a photocurable composition for forming the pixel portion of the color filter.

As the developer, a known and commonly used organic solvent or alkaline aqueous solution can be used. Especially when the above-mentioned photocurable composition contains a thermoplastic resin or a photocurable compound, and at least one of these has an acid value and is alkali-soluble, washing with an aqueous alkali solution is important for the formation of the pixel portion of the color filter. effective.

The manufacturing method of the color filter pixel portion by photolithography method is described in detail. The color filter pixel portion prepared by using the pigment composition for color filter of the present invention can also use other electrodeposition methods, transfer The pixel portions of each color are formed by methods such as the microcell electrolysis method, PVED (photovoltaic electrodeposition) method, inkjet method, reverse printing method, and thermosetting method to produce color filters.

It can be made into a color filter when the organic pigment is coated on the substrate and dried. When the pigment dispersion contains a curable resin, it can be made into a color filter by curing with heat or active energy rays sheet. In addition, it is possible to perform a step of removing volatile components in the coating film by performing a heat treatment (post-baking) at 100 to 280°C for a specific time using a heating device such as a hot plate and an oven. (Alignment film) In the liquid crystal display device of the present invention, an alignment film may be provided on the surface of one of the first substrate and the second substrate that is in contact with the liquid crystal composition to align the liquid crystal composition. In a liquid crystal display device that requires an alignment film, it is placed between the color filter and the liquid crystal layer. The film thickness of the alignment film is less than 100 nm even if it is thick, and it will not completely block the pigments and components that constitute the color filter. The interaction of the liquid crystal compound of the liquid crystal layer.

In addition, in a liquid crystal display device that does not use an alignment film, the interaction between the pigments constituting the color filter and the liquid crystal compound constituting the liquid crystal layer is further increased.

As the alignment film material, transparent organic materials such as polyimide, polyamide, BCB (benzocyclobutene), polyvinyl alcohol, etc. can be used. Particularly preferably, it is made of p-phenylenediamine and 4,4'-diaminodiphenylmethane. Aliphatic or alicyclic diamines and other diamines and butane tetracarboxylic anhydride or 2,3,5-tricarboxycyclopentyl acetic anhydride and other aliphatic or alicyclic tetracarboxylic anhydrides, pyromellitic dianhydride, etc. Polyimide alignment film in which polyimide synthesized by aromatic tetracarboxylic acid anhydride undergoes imidization. In this case, the alignment imparting method generally uses rubbing, and when used in vertical alignment films, etc., it can also be used without imparting alignment.

As the alignment film material, chalcone, cinnamate, materials containing cinnamon or azo groups in the compound can be used, and can be used in combination with polyimide, polyamide and other materials. In this case, the alignment The film can use rubbing or photo-alignment technology.

Regarding the alignment film, the above-mentioned alignment film material is generally coated on a substrate by a spin coating method to form a resin film, and a uniaxial stretching method, a Langmuir-Blodgett method, etc. may also be used. (Transparent electrode) In the liquid crystal display device of the present invention, as the material of the transparent electrode, conductive metal oxide can be used, and as the metal oxide, indium oxide (In ₂ O ₃ ) and tin oxide (SnO ₂ ) can be used , Zinc oxide (ZnO), indium tin oxide (In ₂ O ₃ -SnO ₂ ), indium zinc oxide (In ₂ O ₃ -ZnO), niobium-added titanium dioxide (Ti _1-x Nb _x O ₂ ), fluorine-doped Tin oxide, graphene nanoribbons or metal nanowires are preferably zinc oxide (ZnO), indium tin oxide (In ₂ O ₃ -SnO ₂ ) or indium zinc oxide (In ₂ O ₃ -ZnO). In the patterning of the transparent conductive films, photolithography or masking methods can be used.

The liquid crystal display device of the present invention is particularly useful in liquid crystal display devices for active matrix driving, and can be applied to liquid crystal display devices for TN mode, IPS mode, polymer stabilized IPS mode, FFS mode, OCB mode, VA mode or ECB mode .

Combine this liquid crystal display device with a backlight device and use it in various applications such as LCD TVs, computer monitors, mobile phones, smart phone displays, or notebook personal computers, mobile information terminals, digital signage, etc. . As backlight devices, there are cold cathode tube type backlight devices, light-emitting diodes using inorganic materials or white backlight devices with 2-wavelength peaks and 3-wavelength peaks using organic EL elements, etc. Example

Hereinafter, the invention of this case will be described in further detail with examples, but the invention of this case is not limited by these. In the examples, the following abbreviations are used for the description of the compounds. Furthermore, n represents a natural number.

(Side chain) -n -C _n H _2n+1 linear alkyl with carbon number n n- C _n H _2n+1 -linear alkyl with carbon number n -On -OC _n H _2n+1 Linear alkoxy group with carbon number n nO- C _n H _2n+1 O- Linear alkoxy group with carbon number n -V -CH=CH ₂ V- CH ₂ =CH _{- -V1 -CH = CH-CH 3} 1V- CH 3 -CH = CH- -2V -CH 2 -CH 2 -CH = CH 3 V2- CH 2 = CH-CH 2 -CH 2 - -2V1 -CH 2 -CH ₂ -CH=CH-CH ₃ 1V2- CH ₃ -CH=CH-CH ₂ -CH _2- (Link base) -n- -C _n H _2n --nO- -C _n H _2n -O-- On- -OC _n H _2n --COO- -C(=O)-O- -OCO- -OC(=O)- -CF2O- -CF ₂ -O- -OCF2- -O-CF _2- (ring structure)

In the examples, the measured characteristics are as follows.

之SEPR珠，利用塗料調節器（東洋精機股份有限公司製造）進行4小時分散，其後，利用5 μm之過濾器進行過濾而獲得染料著色液。將該染料著色液75.00份及聚酯丙烯酸酯樹脂（ARONIX（商標名）M7100、東亞合成化學工業股份有限公司製造）5.50份、二新戊四醇六丙烯酸酯（KAYARAD（商標名）DPHA，日本化藥股份有限公司製造）5.00份、二苯甲酮（KAYACURE（商標名）BP-100、日本化藥股份有限公司製造）1.00份、及UCAR ESTER EEP 13.5份利用分散攪拌機進行攪拌，並利用孔徑1.0 μm之過濾器進行過濾，獲得紅色染料著色組成物1。 [紅色染料著色組成物2] 使用紅色染料2（C.I.溶劑紅135）8份及黃色染料1（C.I.溶劑黃21）2份代替上述紅色染料著色組成物1之10份紅色染料1，以與上述相同之方式獲得紅色染料著色組成物2。 [紅色染料著色組成物3] 使用紅色染料3（C.I.溶劑紅52）10份代替上述紅色染料著色組成物1之10份紅色染料1，以與上述相同之方式獲得紅色染料著色組成物3。 [紅色染顏料著色組成物1] 將4份上述紅色染料1、小角度X射線散射法中之平均一次粒徑為25 nm、標準化分散40%之紅色顏料1（C.I.顏料紅254）2份、小角度X射線散射法中之平均一次粒徑為30 nm、標準化分散50%之紅色顏料2（C.I.顏料紅177）2份、及小角度X射線散射法中之平均一次粒徑為35 nm、標準化分散60%黃色顏料2（C.I.顏料黃139）2份加入至聚乙烯瓶中，並加入丙二醇單甲醚乙酸酯55份、DISPERBYK LPN21116（BYK-Chemie股份有限公司製造）7.0份、Saint-Gobain公司製造之0.3-0.4 mm

氧化鋯顆粒「ER-120S」，利用塗料調節器（東洋精機股份有限公司製造）進行4小時分散，其後，利用1 μm之過濾器進行過濾而獲得顏料分散液。將該顏料分散液75.00份、聚酯丙烯酸酯樹脂（ARONIX（商標名）M7100，東亞合成化學工業股份有限公司製造）5.50份、二新戊四醇六丙烯酸酯（KAYARAD（商標名）DPHA，日本化藥股份有限公司製造）5.00份、二苯甲酮（KAYACURE（商標名）BP-100，日本化藥股份有限公司製造）1.00份、及UCAR ESTER EEP 13.5份利用分散攪拌機進行攪拌，並利用孔徑1.0 μm之過濾器進行過濾而獲得紅色染顏料著色組成物1。T _NI : Nematic phase-isotropic liquid phase transition temperature (°C) Δn: Refractive index anisotropy at 25°C Δε: Dielectric constant anisotropy at 25°C γ ₁ : Rotational viscosity at 25°C ( mPa·s) K ₁₁ : Elastic constant K ₁₁ (pN) at 25°C K ₃₃ : Elastic constant K ₃₃ (pN) at 25°C VHR: Under the condition of 60 Hz at 60°C and 1 V applied voltage Voltage retention rate (%) "Production of color filter" [Preparation of coloring composition] [Red dye coloring composition 1] Add 10 parts of red dye 1 (CI Solvent Red 124) to a polyethylene bottle, and add propylene glycol 55 parts of monomethyl ether acetate, 0.3-0.4 mm

The SEPR beads were dispersed with a paint conditioner (manufactured by Toyo Seiki Co., Ltd.) for 4 hours, and then filtered with a 5 μm filter to obtain a dye coloring liquid. 75.00 parts of the dye coloring liquid, polyester acrylate resin (ARONIX (trade name) M7100, manufactured by Toa Synthetic Chemical Industry Co., Ltd.) 5.50 parts, dineopentaerythritol hexaacrylate (KAYARAD (trade name) DPHA, Japan Kayaku Pharmaceutical Co., Ltd.) 5.00 parts, benzophenone (KAYACURE (trade name) BP-100, Nippon Kayaku Co., Ltd.) 1.00 parts, and UCAR ESTER EEP 13.5 parts are stirred with a dispersion mixer and the aperture is used Filter with 1.0 μm filter to obtain red dye coloring composition 1. [Red dye coloring composition 2] Use 8 parts of red dye 2 (CI solvent red 135) and 2 parts of yellow dye 1 (CI solvent yellow 21) instead of 10 parts of red dye 1 of the above red dye coloring composition 1, in order to match the above The red dye coloring composition 2 is obtained in the same manner. [Red Dye Coloring Composition 3] Using 10 parts of red dye 3 (CI Solvent Red 52) instead of 10 parts of the red dye coloring composition 1 described above, a red dye coloring composition 3 was obtained in the same manner as described above. [Red dye pigment coloring composition 1] 4 parts of the above red dye 1, 2 parts of red pigment 1 (CI Pigment Red 254) with an average primary particle size of 25 nm and a standardized dispersion of 40% in the small-angle X-ray scattering method, The average primary particle size in the small-angle X-ray scattering method is 30 nm, 2 parts of the red pigment 2 (CI Pigment Red 177) with a standardized dispersion of 50%, and the average primary particle size in the small-angle X-ray scattering method is 35 nm, Add 2 parts of standardized dispersion 60% yellow pigment 2 (CI Pigment Yellow 139) into a polyethylene bottle, and add 55 parts of propylene glycol monomethyl ether acetate, DISPERBYK LPN21116 (manufactured by BYK-Chemie Co., Ltd.) 7.0 parts, Saint- 0.3-0.4 mm made by Gobain

The zirconia particles "ER-120S" were dispersed with a paint conditioner (manufactured by Toyo Seiki Co., Ltd.) for 4 hours, and thereafter filtered with a 1 μm filter to obtain a pigment dispersion. 75.00 parts of the pigment dispersion liquid, polyester acrylate resin (ARONIX (trade name) M7100, manufactured by Toa Synthetic Chemical Industry Co., Ltd.) 5.50 parts, dineopentaerythritol hexaacrylate (KAYARAD (trade name) DPHA, Japan Kayaku Pharmaceutical Co., Ltd.) 5.00 parts, benzophenone (KAYACURE (trade name) BP-100, Nippon Kayaku Pharmaceutical Co., Ltd.) 1.00 parts, and UCAR ESTER EEP 13.5 parts are stirred with a dispersion mixer and the aperture is used Filtration was performed with a 1.0 μm filter to obtain a red dye coloring composition 1.

Furthermore, the average primary particle size and particle size distribution of the organic pigments are obtained based on the small-angle X-ray scattering method of JP 2006-113042, based on the small-angle X-ray scattering curve (measurement of the scattering curve) of the organic pigment dispersion . [Red dye pigment coloring composition 2] Replace the red pigment 1 of the above-mentioned red dye pigment coloring composition 1 with the red pigment 3 (PIG-8 brominated pyrrolopyrrole two) with an average primary particle size of 20 nm and a standard dispersion of 40% in the small-angle X-ray scattering method. Ketone pigment), the red dye pigment coloring composition 2 was obtained in the same manner as above.

[Red pigment coloring composition 1] Red pigment 4 (CI Pigment Red 48:1) with an average primary particle size of 50 nm and a standardized dispersion of 70% in the small-angle X-ray scattering method is used instead of the 4 parts of red dye 1 and 2 of the above-mentioned red dye pigment coloring composition 1 Parts of red pigment 1, 2 parts of red pigment 2, and 2 parts of yellow pigment 2 were used to obtain red pigment coloring composition 1 in the same manner as described above. [Green dye coloring composition 1] Use 3 parts of Blue Dye 1 (CI Solvent Blue 67) and 7 parts of Yellow Dye 2 (CI Solvent Yellow 162) instead of 10 parts of Red Dye 1 of Red Dye Coloring Composition 1, and obtain green dye coloring in the same way as above Composition 1. [Green dye coloring composition 2] Replace 3 parts of the above-mentioned green dye coloring composition 1 with 8 parts of blue dye 1 and 8 parts of green dye 1 (the structure of PIG-9), and replace 7 parts of yellow dye 2 (CI solvent yellow 162) with 2 parts. The green dye coloring composition 2 was obtained in the same manner as described above.

[Green Dye Coloring Composition 3] Replace 3 parts of the above-mentioned green dye coloring composition 1 with 9 parts of blue dye 1 and 9 parts of green dye 2 (structure of PIG-10), and replace 7 parts of yellow dye 2 (CI solvent yellow 162) with 1 part. The green dye coloring composition 3 was obtained in the same manner as described above.

[Green Dye Coloring Composition 4] Using 10 parts of green dye 1 (C.I. Solvent Green 7) instead of 3 parts of blue dye 1 and 7 parts of yellow dye 2 of the above-mentioned green dye coloring composition 1, a green dye coloring composition 4 was obtained in the same manner as above. [Green dye pigment coloring composition 1] Use 3 parts of the above-mentioned green dye 1 and green pigment 1 (CI Pigment Green 58, "FASTOGEN GREEN A350" manufactured by DIC Co., Ltd.) and 3 parts of yellow pigment 1 (CI Pigment Yellow 150, FANCHON FAST YELLOW E4GN manufactured by BAYER) 4 Parts are substituted for 4 parts of red dye 1, 2 parts of red pigment 1, 2 parts of red pigment 2, and 2 parts of yellow pigment 2 of the above-mentioned red dye and pigment coloring composition 1, and green dye and pigment color composition 1 is obtained in the same manner as above. [Green dyed pigment coloring composition 2] Use 2 parts of Green Pigment 2 (CI Pigment Green 63) and 5 parts of Yellow Pigment 2 (CI Pigment Yellow 138) instead of 3 parts of Green Pigment 1 and 4 parts of Yellow Pigment 1 of the above-mentioned green dye pigment coloring composition 1, so as to be the same as above In this way, the green dye pigment coloring composition 2 is obtained. [Blue dye coloring composition 1] Using 10 parts of blue dye 2 (C.I. Basic Blue 7, PIG-11 structure) instead of 10 parts of the red dye coloring composition 1 above, the blue dye coloring composition 1 was obtained in the same manner as above.

[Blue dye coloring composition 2] Using 10 parts of blue dye 3 (structure of PIG-12) instead of 10 parts of red dye 1 of the above-mentioned red dye coloring composition 1, the blue dye coloring composition 2 was obtained in the same manner as above.

[Blue dye coloring composition 3] Using 10 parts of blue dye 4 (structure of PIG-13) instead of 10 parts of red dye 1 of the above-mentioned red dye coloring composition 1, the blue dye coloring composition 3 was obtained in the same manner as above.

系染料2份代替上述紅色染顏料著色組成物1之4份紅色染料1、2份紅色顏料1、2份紅色顏料2、2份黃色顏料2，以與上述相同之方式獲得藍色染顏料著色組成物1。[Blue dye coloring composition 4] Using 10 parts of blue dye 5 (CI Solvent Blue 12) instead of 10 parts of blue dye coloring composition 2 above, blue dye 1 is used in the same manner as above to obtain blue dye coloring Composition 4. [Blue dye pigment coloring composition 1] Using small-angle X-ray scattering method with an average primary particle size of 20 nm, standardized dispersion of 50% blue pigment 1 (CI Pigment Blue 15: 6) 8 parts and PIG-14 𠮿

2 parts of dyes instead of 4 parts of red dye 1, 2 parts of red pigment 1, 2 parts of red pigment 2, and 2 parts of yellow pigment 2 of the above-mentioned red dye pigment coloring composition 1, obtain blue dye pigment coloring in the same way as above Composition 1.

系染料2份替換為藍色染料2（C.I.鹼性藍7，PIG-11之結構），以與上述相同之方式獲得藍色染顏料著色組成物2。 [黃色染顏料著色組成物1] 使用6份黃色染料1及黃色顏料1（C.I.顏料黃150，LANXESS公司製造之FANCHON FAST YELLOW E4GN）4份代替上述紅色染顏料著色組成物1之4份紅色染料1、2份紅色顏料1、2份紅色顏料2、2份黃色顏料2，以與上述相同之方式獲得黃色染顏料著色組成物1。[Blue dyed pigment coloring composition 2] Replace 8 parts of blue pigment 1 of the above-mentioned blue dyed pigment coloring composition 1 with 9 parts, and replace 𠮿

Replace 2 parts of the system dye with blue dye 2 (CI Basic Blue 7, PIG-11 structure), and obtain blue dye pigment coloring composition 2 in the same manner as above. [Yellow dye pigment coloring composition 1] Use 6 parts of yellow dye 1 and 4 parts of yellow pigment 1 (CI Pigment Yellow 150, FANCHON FAST YELLOW E4GN manufactured by LANXESS) instead of 4 parts of the above red dye pigment coloring composition 1 of red dye 1. 2 parts of red pigment 1, 2 parts of red pigment 2, and 2 parts of yellow pigment 2, to obtain yellow dye pigment coloring composition 1 in the same manner as above.

The color filters 1 to 5 were prepared using the dye coloring composition, the pigment coloring composition, or the dye coloring composition shown in the following table.

[Table 1] CF-1 CF-2 CF-3 R pixel Red dye coloring composition 1 Red dye coloring composition 2 Red dye coloring composition 3 G pixel Green dye coloring composition 1 Green dye coloring composition 2 Green dye coloring composition 3 B pixel Blue dye coloring composition 1 Blue dye coloring composition 2 Blue dye coloring composition 3 Y pixel Yellow dye pigment coloring composition 1 no no

[Table 2] CF-4 CF-5 CF-R1 R pixel Red dye pigment coloring composition 1 Red dye pigment coloring composition 2 Red pigment coloring composition 1 G pixel Green dye pigment coloring composition 1 Green dye pigment coloring composition 2 Green dye coloring composition 4 B pixel Blue dye pigment coloring composition 1 Blue dye pigment coloring composition 2 Blue dye coloring composition 4 Y pixel Yellow dye pigment coloring composition 1 no Yellow dye pigment coloring composition 1

(Examples 1-20) The liquid crystal compositions of LC-1 shown in the table below were prepared, and their physical properties were measured. The physical properties are described in the table below.

[table 3] LC-1 3-Cy-Cy-2 21.5 3-Cy-Cy-4 9.5 3-Ph-Ph-1 13.5 3-CC-Ph-1 6 3-Cy-1O-Ph5-O2 11.5 3-Cy-Cy-1O-Ph5-O2 14 2-Cy-Ph-Ph5-O2 7 3-Cy-Ph-Ph5-O2 8 3-Cy-Ph-Ph5-O4 9 total 100 T _NI [℃] 74.7 Δn 0.103 γ ₁ [mPa・s] 84 Δε -2.8

With respect to 100 parts by mass of the above-mentioned liquid crystal composition, the polymerizable compound was added in the addition amount in Table 3 to prepare a liquid crystal composition containing the polymerizable compound.

Prepare a first substrate (common electrode substrate), which has a transparent electrode layer composed of patterned transparent common electrodes on an insulating layer, has the color filter layer shown in Table 1, and does not have an alignment film; and The second substrate (pixel electrode substrate) has a pixel electrode layer with a transparent pixel electrode driven by an active device, and does not have an alignment film. The liquid crystal composition was dropped on the first substrate and clamped by the second substrate, and the sealing material was cured under normal pressure and 110°C for 2 hours. After that, the UV fluorescent lamp manufactured by Toshiba Lighting was irradiated for 120 minutes (illuminance at 313 nm 1.7 mW/cm ² ) to obtain a liquid crystal display element with a cell gap of 3.5 μm.

The VHR of the obtained liquid crystal cell was measured, and the result confirmed that the liquid crystal display element with the color filter and the polymerizable liquid crystal composition of the present invention has excellent characteristics.

[Table 4] Example number 1 2 3 4 5 Matrix Composition LC-1 LC-1 LC-1 LC-1 LC-1 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.1 99.6 99.3 99.5 98.9

[table 5] Example number 6 7 8 9 10 Matrix Composition LC-1 LC-1 LC-1 LC-1 LC-1 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 99.4 99.5 99.4 99.2 99.7

[Table 6] Example number 11 12 13 14 15 Matrix Composition LC-1 LC-1 LC-1 LC-1 LC-1 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.5 99.2 99.3 99.4 99.2

[Table 7] Example number 16 17 18 19 20 Matrix Composition LC-1 LC-1 LC-1 LC-1 LC-1 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.1 99.1 99.5 99.6 99.4

(Examples 21 to 140) The liquid crystal compositions of LC-2 to LC-7 shown in the table below were prepared, and their physical properties were measured. The physical properties are described in the table below.

[Table 8] LC-2 LC-3 LC-4 LC-5 LC-6 LC-7 3-Cy-Cy-2 twenty one twenty one 16.5 10 3-Cy-Cy-4 6.5 9.5 4.5 6 3-Cy-Cy-5 6 3-Cy-Cy-V 32 32 3-Cy-Cy-V1 8.5 8.5 3-Cy-Ph-O1 4.5 3-Ph-Ph-1 12 2.5 11 2 1V2-Ph-Ph-1 6 3-CC-Ph-1 7.5 8 8 10 9 3-C-Ph-Ph-2 3 6.5 3-Ph-Ph5-O2 10 6.5 10 10 4-Ph-Ph5-O2 8.5 3-Cy-Ph5-O2 10 10 15.5 10 12 5-Cy-Ph5-O2 5 5 5 3-Cy-1O-Ph5-O1 2 3-Cy-1O-Ph5-O2 11.5 3-Cy-Cy-Ph5-O1 4 9 3-Cy-Cy-Ph5-O2 7 12.5 7 9 3-Cy-Cy-Ph5-O4 7 3-Cy-Cy-1O-Ph5-O2 14 11.5 2-Cy-Ph-Ph5-O2 7 7 7 7 7 3-Cy-Ph-Ph5-O2 8 8 8 8 8 3-Cy-Ph-Ph5-O4 9 9 9 9 3-Ph-Ph5-Ph-2 5 total 100 100 100 100 100 100

[Table 9] LC-2 LC-3 LC-4 LC-5 LC-6 LC-7 T _NI [℃] 75.3 75.3 73.5 74.7 74.2 74.9 Δn 0.103 0.103 0.103 0.104 0.103 0.100 γ ₁ [mPa・s] 88 87 84 73 76 91 Δε -2.8 -2.8 -2.6 -2.9 -2.8 -3.1

The polymerizable compound was added in the addition amount in the following table with respect to 100 parts by mass of each of the above-mentioned liquid crystal compositions to prepare a liquid crystal composition containing the polymerizable compound. Thereafter, a liquid crystal display element was produced by the same method as in Example 1, and the VHR was measured. It is confirmed that the liquid crystal display element with the color filter and the polymerizable liquid crystal composition of the present invention has excellent characteristics.

[Table 10] Example number twenty one twenty two twenty three twenty four 25 Matrix Composition LC-2 LC-2 LC-2 LC-2 LC-2 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.2 99.3 99.7 99.4 98.8

[Table 11] Example number 26 27 28 29 30 Matrix Composition LC-2 LC-2 LC-2 LC-2 LC-2 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 99.2 99.4 99.5 98.8 99.6

[Table 12] Example number 31 32 33 34 35 Matrix Composition LC-2 LC-2 LC-2 LC-2 LC-2 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.4 99.7 99.3 99.7 99.6

[Table 13] Example number 36 37 38 39 40 Matrix Composition LC-2 LC-2 LC-2 LC-2 LC-2 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.6 99.2 99.3 99.3 99.4

[Table 14] Example number 41 42 43 44 45 Matrix Composition LC-3 LC-3 LC-3 LC-3 LC-3 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 98.8 99.5 99.5 99.2 99.4

[Table 15] Example number 46 47 48 49 50 Matrix Composition LC-3 LC-3 LC-3 LC-3 LC-3 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 99.8 99.4 99.4 99.1 99.5

[Table 16] Example number 51 52 53 54 55 Matrix Composition LC-3 LC-3 LC-3 LC-3 LC-3 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.4 99.3 99.2 99.4 99.4

[Table 17] Example number 56 57 58 59 60 Matrix Composition LC-3 LC-3 LC-3 LC-3 LC-3 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.4 99.2 99.5 99.6 99.3

[Table 18] Example number 61 62 63 64 65 Matrix Composition LC-4 LC-4 LC-4 LC-4 LC-4 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 98.2 99 98.5 98.4 98.4

[Table 19] Example number 66 67 68 69 70 Matrix Composition LC-4 LC-4 LC-4 LC-4 LC-4 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 99.1 99 98.9 98.4 99.2

[Table 20] Example number 71 72 73 74 75 Matrix Composition LC-4 LC-4 LC-4 LC-4 LC-4 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 98.1 99.5 99.1 99.3 99.2

[Table 21] Example number 76 77 78 79 80 Matrix Composition LC-4 LC-4 LC-4 LC-4 LC-4 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 99.1 98.9 99.3 98.7 98.9

[Table 22] Example number 81 82 83 84 85 Matrix Composition LC-5 LC-5 LC-5 LC-5 LC-5 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 95.6 95.8 95.7 95.6 95.9

[Table 23] Example number 86 87 88 89 90 Matrix Composition LC-5 LC-5 LC-5 LC-5 LC-5 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 96.1 96 95.9 95.4 95.8

[Table 24] Example number 91 92 93 94 95 Matrix Composition LC-5 LC-5 LC-5 LC-5 LC-5 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 95.7 95.7 95.8 96.1 96.2

[Table 25] Example number 96 97 98 99 100 Matrix Composition LC-5 LC-5 LC-5 LC-5 LC-5 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 96.3 95.5 95.9 95.5 95.7

[Table 26] Example number 101 102 103 104 105 Matrix Composition LC-6 LC-6 LC-6 LC-6 LC-6 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 96.5 96.8 96.6 96.7 96.4

[Table 27] Example number 106 107 108 109 110 Matrix Composition LC-6 LC-6 LC-6 LC-6 LC-6 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 97.1 97 97.2 96.4 96.9

[Table 28] Example number 111 112 113 114 115 Matrix Composition LC-6 LC-6 LC-6 LC-6 LC-6 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 97 96.8 96.3 96.8 96.7

[Table 29] Example number 116 117 118 119 120 Matrix Composition LC-6 LC-6 LC-6 LC-6 LC-6 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 97.2 96.5 96.9 96.7 97

[Table 30] Example number 121 122 123 124 125 Matrix Composition LC-7 LC-7 LC-7 LC-7 LC-7 Color filter CF-1 CF-1 CF-1 CF-1 CF-2 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.35 0.3 0.6 0.3 0.35 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 97.8 98.2 98.4 98.1 97.4

[Table 31] Example number 126 127 128 129 130 Matrix Composition LC-7 LC-7 LC-7 LC-7 LC-7 Color filter CF-2 CF-2 CF-2 CF-3 CF-3 ①Add Compound RM-1 RM-1 RM-3 RM-1 RM-1 ①Addition amount /% 0.3 0.6 0.3 0.35 0.3 ②Add Compound RM-2 RM-C RM-E RM-A RM-2 ②Addition amount /% 0.3 0.4 0.6 1 0.3 ③Add Compound RM-B RM-D RM-B ③Addition amount /% 0.2 0.4 0.2 ④Add Compound RM-C RM-C ④Addition amount /% 0.4 0.4 VHR /% 98.1 98.4 98.1 98.3 98.6

[Table 32] Example number 131 132 133 134 135 Matrix Composition LC-7 LC-7 LC-7 LC-7 LC-7 Color filter CF-3 CF-3 CF-4 CF-4 CF-4 ①Add Compound RM-1 RM-3 RM-1 RM-1 RM-1 ①Addition amount /% 0.6 0.3 0.35 0.3 0.6 ②Add Compound RM-C RM-E RM-A RM-2 RM-C ②Addition amount /% 0.4 0.6 1 0.3 0.4 ③Add Compound RM-D RM-B RM-D ③Addition amount /% 0.4 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 98.3 98.2 97.9 98.4 98.4

[Table 33] Example number 136 137 138 139 140 Matrix Composition LC-7 LC-7 LC-7 LC-7 LC-7 Color filter CF-4 CF-5 CF-5 CF-5 CF-5 ①Add Compound RM-3 RM-1 RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.35 0.3 0.6 0.3 ②Add Compound RM-E RM-A RM-2 RM-C RM-E ②Addition amount /% 0.6 1 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 98.6 98.5 98.8 98.2 98.3

(Comparative Examples 1-8) With respect to 100 parts by mass of the liquid crystal composition LC-1, the polymerizable compound is added in the addition amount in the following table to prepare a liquid crystal composition containing the polymerizable compound.

[Table 34] Comparative example number 1 2 3 4 5 Matrix Composition LC-1 LC-1 LC-1 LC-1 LC-5 Color filter CF-1 CF-1 CF-1 CF-R1 CF-1 ①Add Compound RM-1 RM-1 RM-1 RM-3 RM-1 ①Addition amount /% 0.3 0.3 0.6 0.3 0.3 ②Add Compound RM-A RM-2 RM-C RM-E RM-A ②Addition amount /% 1 0.3 0.4 0.6 1 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 85.8 89.2 88.4 87.3 72.8

[Table 35] Comparative example number 6 7 8 Matrix Composition LC-5 LC-5 LC-5 Color filter CF-1 CF-R1 CF-1 ①Add Compound RM-1 RM-1 RM-3 ①Addition amount /% 0.3 0.6 0.3 ②Add Compound RM-2 RM-C RM-E ②Addition amount /% 0.3 0.4 0.6 ③Add Compound RM-B RM-D ③Addition amount /% 0.2 0.4 ④Add Compound RM-C ④Addition amount /% 0.4 VHR /% 76.5 74.3 75.1

Fabrication of a first substrate (common electrode substrate), which is provided with a transparent electrode layer composed of transparent common electrodes patterned on an insulating layer, a color filter layer and a vertical alignment film (JALS-2096); and fabricating a second substrate (Pixel electrode substrate), which has a pixel electrode layer with a transparent pixel electrode driven by an active device and a vertical alignment film. The firing conditions of the alignment film were set at 200°C for 40 minutes. The liquid crystal composition was dropped on the first substrate and clamped by the second substrate, and the sealing material was cured under normal pressure and 110°C for 2 hours. After that, the UV fluorescent lamp manufactured by Toshiba Lighting was irradiated for 120 minutes (illuminance at 313 nm 1.7 mW/cm ² ) to obtain a liquid crystal display element with a cell gap of 3.5 μm.

The VHR of the obtained liquid crystal cell was measured, and the result confirmed that the characteristics are all poor.

1: liquid crystal display element AM: active matrix substrate CF: Color filter substrate 2: The first substrate 3: The second substrate 4: Liquid crystal layer 5: Pixel electrode layer 6: Common electrode layer 7: The first polarizer 8: The second polarizer 9: color filter 11: Gate bus line 12: Data bus line 13: Pixel electrode 14: Cs electrode 15: Source electrode 16: Drain electrode 17: Contact hole

Fig. 1 is an exploded perspective view schematically showing an embodiment of a liquid crystal display element. [Figure 2] is an enlarged plan view of the area enclosed by line I in Figure 1.

11: Gate bus line

12: Data bus line

13: Pixel electrode

14: Cs electrode

15: Source electrode

16: Drain electrode

17: Contact hole

Claims (16)

A liquid crystal display device having: a first substrate and a second substrate arranged oppositely, a liquid crystal layer filled between the first substrate and the second substrate, and a black matrix and at least RGB three-color pixel parts In the color filter, the liquid crystal layer contains 10-50% by weight of the compound represented by general formula (I),

(In the formula, R ¹ and R ² each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkyl group with 2 to 8 carbon atoms. Alkenyloxy), containing 35 to 80% by weight of the compound represented by the general formula (II),

(In the formula, R ³ and R ⁴ each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms. Alkenyloxy, Z ³ and Z ⁴ each independently represent a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, B and C each independently represent 1,4-phenylene or trans-1,4-phenylene which can be substituted by a fluorine atom Cyclohexyl, m and n each independently represent an integer from 0 to 4, m + n = 1 to 4), and further contains an alignment aid, as a colorant, the above-mentioned RGB three-color pixel portion contains two selected from pyrrolopyrrole in the R pixel portion One or more of ketone (diketopyrrolopyrrole) pigments and oil-soluble red organic dyes, containing selected from halogenated phthalocyanine pigments, phthalocyanine green dyes, phthalocyanine blue dyes and azo-based dyes in the G pixel portion At least one of the group consisting of a mixture of yellow organic dyes, containing one or more selected from ε-type copper phthalocyanine pigments and cationic blue organic dyes in the B pixel portion, and the liquid crystal display device is At least one of the first substrate and the second substrate does not have an alignment film on the surface, and has an alignment control layer formed by an alignment aid contained in the liquid crystal layer or a polymer formed by polymerization. The liquid crystal display device according to claim 1, wherein the diketopyrrolopyrrole pigment in the R pixel portion is CI Pigment Red 254, CI Pigment Red 255, CI Pigment Red 264, and brominated diketopyrrolopyrrole pigment, The solvent-based red organic dyes are CI Solvent Red 52, CI Solvent Red 111, CI Solvent Red 124, CI Solvent Red 135, CI Solvent Red 141, CI Solvent Red 145, CI Solvent Red 151, and CI Solvent Red 179. The liquid crystal display device according to claim 1 or 2, wherein the halogenated phthalocyanine pigment in the G pixel portion is CI Pigment Green 7, CI Pigment Green 36, CI Pigment Green 58, CI Pigment Green 59, CI Pigment Green 62 , CI Pigment Green 63, the phthalocyanine green dye is the dye represented by the following general formula (PIG-1), the phthalocyanine blue dye is CI solvent blue 67, and the azo yellow organic dye is CI solvent yellow 162;

(In the formula, in the general formula (PIG-1), X ¹ⁱ ~ X ¹⁶ⁱ represent hydrogen atom, fluorine atom, chlorine atom, bromine atom or general formula (PIG-2), (PIG-3), (PIG-4 ), (PIG-5); the four X atoms bonded to a benzene ring can be the same or different; M is the central metal, which means Zn, Cu, Mg, Ca, Sr, Ba, Mn, Co, Ni, Pd, Pt, Sn, Fe, InCl, VCl; X 17i represents an oxygen, sulfur, sulfone (-SO ₂ -); X ¹⁸ⁱ represents a hydrogen atom, an alkyl group may have a substituent group of carbon number of 1 to 29, carbon atoms 2 To 20 alkenyl, carbon 3 to 30 alkynyl, carbon 3 to 30 cycloalkyl, carbon 3 to 30 cycloalkenyl, carbon 6 to 30 cycloalkynyl, or carbon 6 to 30 is an aryl group; k represents an integer from 1 to 5). The liquid crystal display device according to any one of claims 1 to 3, wherein the ε-type copper phthalocyanine pigment in the B pixel portion is CI pigment 15:6, and the cationic blue organic dye is the following general formula ( Dyes represented by PIG-6) and (PIG-7);

(In the formula, R ^1j to R ^6j each independently represent a hydrogen atom, an optionally substituted alkyl group having 1 to 8 carbon atoms, or an optionally substituted aryl group; R ^1j to R ^6j indicate optionally substituted In the case of an alkyl group, adjacent R ^1j and R ^2j , R ^3j and R ^4j , R ^5j and R ^6j may be bonded to form a ring structure; R ^7j and X ^8j each independently represent a hydrogen atom, a halogen atom, or may have The substituent is an alkyl group having 1 to 8 carbon atoms; Z ^1j represents an alkyl group having 4 to 12 carbon atoms, or -R ^7j -B ^1j -R ^8j -; R ^7j and R ^8j each independently represent a carbon that may have a substituent Alkyl group of ^2-8 ; [A] ^b- represents any anion of valence b; a represents an integer of 2 or more; b represents an integer of 2 or more). The liquid crystal display device according to any one of claims 1 to 4, wherein the alignment aid has a mesogen, an adsorption group, and an alignment inducing group. The liquid crystal display device according to claim 5, wherein the adsorption group is a group that can be bonded to the adsorption medium by hydrogen bonding. The liquid crystal display device according to claim 5 or 6, wherein the adsorption group is a group containing a polar element, and the polar element has at least 1 selected from the group consisting of N, O, S, P, B, and Si A group of atoms connected by heteroatoms and carbon atoms. The liquid crystal display device according to any one of claims 5 to 7, wherein the adsorption group is represented by the general formula (AT):

(In the formula, Sp ^AT1 represents a single bond, a linear or branched alkylene group with 1 to 25 carbon atoms, and the hydrogen atom in the alkylene group can be substituted with -OH, -CN, -W ^AT1 -Z ^AT1 or P ^AP1 -Sp ^AP1 -, the -CH ₂ -in the above alkylene can be substituted into a cyclic group, -O-, -COO-, -C( =O)-, -OCO-, -CH=CH-; W ^AT1 represents a single bond or general formula (WAT1) or (WAT2);

(In the formula, Sp ^WAT1 and Sp ^WAT2 each independently represent a single bond, a linear or branched alkylene group with 1 to 25 carbon atoms, and the hydrogen atom in the alkylene group may be substituted with -OH, -CN, -Sp ^AT1 -W ^AT1 -Z ^AT1 or P ^AP1 -S ^AP1 -, the -CH ₂ -in the above alkylene can be substituted into a cyclic group, -O- in a way that the oxygen atom is not directly bonded , -COO-, -C(=O)-, -OCO-, -CH=CH-); Z ^AT1 represents a monovalent group containing polar elements, and the hydrogen atom in Z ^AT1 can be replaced with -OH, -CN , -Sp ^AT1 -W ^AT1 -Z ^AT1 or P ^AP1 -S ^AP1 -, P ^AP1 -Sp ^AP1 -represents the polymerizable group). The liquid crystal display element according to any one of claims 5 to 8, wherein the mesogen is represented by the general formula (AL);

(In the formula, Z ^AL1 represents a single bond, -CH=CH-, -CF=CF-, -C≡C-, -COO-, -OCO-, -OCOO-, -CF ₂ O-, -OCF _2- , -CH=CHCOO-, -OCOCH=CH-, -CH ₂ -CH ₂ COO-, -OCOCH ₂ -CH ₂ -, -CH=C(CH ₃ )COO-, -OCOC(CH ₃ )=CH- , -CH ₂ -CH(CH ₃ )COO-, -OCOCH(CH ₃ )-CH ₂ -, -OCH ₂ CH ₂ O- or an alkylene group with 1 to 20 carbon atoms, one of the alkylene groups One or more than two non-adjacent -CH ₂ -can be substituted with -O-, -COO- or -OCO-, A ^AL1 and A ^AL2 each independently represent a divalent cyclic group, in Z ^AL and A ^AL One or more of the hydrogen atoms can be independently substituted with halogeno groups, adsorbent groups, P ^al -Sp ^al -or monovalent organic groups. Furthermore, there are plural Z ^AL1 in the molecule In the case of A ^AL1 and A ^AL1 , they may be the same or different respectively. m ^AL1 represents an integer from 1 to 5, P ^al -Sp ^al -represents a polymerizable group, and the left end * and the right end * in the above formula represent bonding bonds ). The liquid crystal display device according to any one of claims 5 to 9, wherein the alignment-inducing group represents a linear or branched alkyl group having 1 to 20 carbon atoms, and one of the alkyl groups is Two or more -CH ₂ -can be independently substituted into -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO- without direct bonding of oxygen atoms. , One or two or more hydrogen atoms in the alkyl group may be independently substituted with a halo group. The liquid crystal display device according to any one of claims 5 to 10, wherein the alignment aid has a polymerizable group for polymerization. The liquid crystal display device according to claim 11, wherein the polymerizable group is a group represented by P ^AP1 -Sp ^AP1 -, and P ^{AP1 is} represented by the following general formulas (AP-1) to (AP-9) ；

(In the formula, R ^AP1 and R ^AP2 each independently represent a hydrogen atom, an alkyl group with 1 to 5 carbon atoms, or a halogenated alkyl group with 1 to 10 carbon atoms. One or more of the alkyl groups is -CH ₂ -may be substituted with -O- or -CO-, one or two or more hydrogen atoms in the alkyl group may be independently substituted with halogen atoms or hydroxyl groups, W ^AP1 represents a single bond, -O-,- COO- or -CH ₂ -, t ^AP1 means 0, 1 or 2). The liquid crystal display device according to any one of claims 1 to 12, wherein the liquid crystal composition constituting the liquid crystal layer contains a compound represented by general formula (II-1) as the compound represented by general formula (II) ；

(In the formula, R ³ and R ⁴ each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms. Alkenyloxy group, Z ⁵ represents a single bond, -CH=CH-, -C≡C-, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -COO-, -OCO-, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -or -CF ₂ O-, m1 represents 0 or 1). The liquid crystal display device according to claim 13, wherein the liquid crystal composition constituting the liquid crystal layer further contains a compound represented by general formula (III);

(In the formula, R ⁷ and R ⁸ each independently represent an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 2 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms, or an alkyl group with 2 to 8 carbon atoms Alkenyloxy, D, E and F each independently represent 1,4-phenylene or trans-1,4-cyclohexylene which may be substituted by fluorine, and Z ² represents a single bond, -OCH ₂ -, -OCO- , -CH ₂ O- or -COO-, n represents 0, 1 or 2; except for compounds represented by general formula (I) and general formula (II-1)). The liquid crystal display device according to any one of claims 1 to 14, wherein the alignment control layer is an alignment control layer formed of a polymer formed by polymerization of an alignment aid having a polymerizable group. The liquid crystal display device according to any one of claims 1 to 15, wherein the liquid crystal layer is composed of a polymer obtained by polymerizing a liquid crystal composition, and the liquid crystal composition contains one or more kinds of The polymerizable compound represented by the general formula (P);

(In formula (P), R ^p1 represents a hydrogen atom, a fluorine atom, a cyano group, an alkyl group with 1 to 15 carbon atoms, or -Sp ^p2 -P ^p2 ; wherein, one of the alkyl groups or the non-adjacent two More than one -CH ₂ -can be independently substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-; in addition, one of the alkyl groups Or two or more hydrogen atoms may be independently substituted with cyano, fluorine or chlorine atoms; P ^p1 and P ^p2 each independently represent any of the following general formulas (P ^p1 -1) to (P ^p1 -9) One

(In the formula, R ^p11 and R ^p12 each independently represent a hydrogen atom, an alkyl group with 1 to 5 carbon atoms, or a halogenated alkyl group with 1 to 5 carbon atoms, and W ^p11 represents a single bond, -O-, -COO-, -OCO- or -CH ₂ -, t ^p11 represents 0, 1 or 2, and when there are multiple R ^p11 , R ^p12 , W ^p11 and/or t ^p11 in the molecule, these may be the same or different) ; Sp ^p1 and Sp ^p2 each independently represent a single bond or a spacer; Z ^p1 and Z ^p2 each independently represent a single bond, -O-, -S-, -CH ₂ -, -OCH ₂ -, -CH ₂ O-, -CO-, -C ₂ H ₄ -, -COO-, -OCO-, -OCOOCH ₂ -, -CH ₂ OCOO-, -OCH ₂ CH ₂ O-, -CO-NR ^ZP1 -, -NR ^ZP1 -CO -, -SCH ₂ -, -CH ₂ S-, -CH=CR ^ZP1 -COO-, -CH=CR ^ZP1 -OCO-, -COO-CR ^ZP1 =CH-, -OCO-CR ^{ZP 1} =CH-, -COO-CR ^ZP1 =CH-COO-, -COO-CR ^ZP1 =CH-OCO-, -OCO-CR ^ZP1 =CH-COO-, -OCO-CR ^ZP1 =CH-OCO-, -(CH ₂ ) ₂ -COO-, -(CH ₂ ) ₂ -OCO-, -OCO-(CH ₂ ) ₂ -, -(C=O)-O-(CH ₂ ) ₂ -, -CH=CH-, -CF=CF -, -CF=CH-, -CH=CF-, -CF ₂ -, -CF ₂ O-, -OCF ₂ -, -CF ₂ CH ₂ -, -CH ₂ CF ₂ -, -CF ₂ CF _2- Or -C≡C- (where R ^ZP1 independently represents a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, and when there are multiple R ^ZP1 in the molecule, these may be the same or different); A ^p1 , A ^p2 and A ^p3 each independently represent selected from (a ^p ) 1,4-cyclohexylene (one -CH ₂ -present in this group or two or more non-adjacent -CH ₂ -can be substituted with -O-), (b ^p ) 1,4-phenylene (one -CH= or two or more non-adjacent -CH= in the group can be substituted with -N=), and (c ^p ) Naphthalene-2,6-diyl, naphthalene-1,4-diyl, naphthalene-1,5-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, decahydro Naphthalene-2,6-diyl, phenanthrene-2,7-diyl or anthracene-2,6-diyl (1 -CH= or 2 or more non-adjacent -CH= in these groups can be Is substituted with -N=) in the group (the above-mentioned group (a ^p ), the group (b ^p ) And the group (c ^p ) are independent, and the hydrogen atom in the group can be substituted with a halogen atom, an alkyl group with 1 to 8 carbon atoms, an alkenyl group with 1 to 8 carbon atoms, a cyano group or -Sp ^p2 -P ^p2 ); m ^p1 represents 0, 1, 2 or 3; when there are a plurality of Z ^p1 , A ^p2 , Sp ^p2 and/or P ^p2 in the molecule, these may be the same or different; where, in When m ^p1 is 0 and A ^p1 is the group represented by the group (c ^p ), A ^p3 may be a single bond; furthermore, the alignment aid is removed from the polymerizable compound).

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