TWI833964B - Liquid crystal composition and liquid crystal display device thereof - Google Patents

Liquid crystal composition and liquid crystal display device thereof Download PDF

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TWI833964B
TWI833964B TW109118325A TW109118325A TWI833964B TW I833964 B TWI833964 B TW I833964B TW 109118325 A TW109118325 A TW 109118325A TW 109118325 A TW109118325 A TW 109118325A TW I833964 B TWI833964 B TW I833964B
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liquid crystal
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crystal composition
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TW202045690A (en
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王立威
韓文明
徐海彬
馬文陽
嚴為剛
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大陸商江蘇和成顯示科技有限公司
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters

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Abstract

本發明涉及一種液晶組合物及其液晶顯示器件，所述液晶組合物包含至少一種通式 I 的化合物和至少一種通式 II 的化合物；所述液晶顯示器件包括所述液晶組合物。本發明提供的液晶組合物中兩種具有特定結構的化合物之間能夠相互配合，協同增效，在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。The present invention relates to a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition contains at least one compound of general formula I and at least one compound of general formula II; the liquid crystal display device includes the liquid crystal composition. The two compounds with specific structures in the liquid crystal composition provided by the invention can cooperate with each other and synergize, further reduce the driving voltage while maintaining the same level of dielectric anisotropy, and have good low-temperature interaction. Solubility.

Description

一種液晶組合物及其液晶顯示器件Liquid crystal composition and liquid crystal display device thereof

本發明屬於液晶材料技術領域，涉及一種液晶組合物及其液晶顯示器件。The invention belongs to the technical field of liquid crystal materials and relates to a liquid crystal composition and a liquid crystal display device thereof.

液晶顯示元件可以在以鐘錶、電子計算器為代表的家庭用各種電器、測定機器、汽車用面板、文字處理機、電腦、印表機、電視等中使用。根據顯示模式的類型分為 PC（phase change，相變）、TN（twist nematic，扭曲向列）、STN（super twisted nematic，超扭曲向列）、ECB（electrically controlled birefringence，電控雙折射）、OCB（optically compensated bend，光學補償彎曲）、IPS（in-plane switching，共面轉變）、VA（vertical alignment，垂直配向）等類型。根據元件的驅動方式分為 PM（passive matrix，被動矩陣）型和 AM（active matrix，主動矩陣）型。PM 分為靜態（static）和多路（multiplex）等類型。AM 分為 TFT（thin film transistor，薄膜電晶體）、MIM（metal insulator metal，金屬-絕緣層金屬）等類型。TFT 的類型有非晶矽（amorphous silicon）和多晶矽（polycrystal silicon）。後者根據製造工藝分為高溫型和低溫型。液晶顯示元件根據光源的類型分為利用自然光的反射型、利用背光的透過型、以及利用自然光和背光兩種光源的半透過型。Liquid crystal display elements can be used in various household appliances including clocks and electronic calculators, measuring equipment, automotive panels, word processors, computers, printers, televisions, and the like. According to the type of display mode, it is divided into PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electronically controlled birefringence), OCB (optically compensated bend, optically compensated bend), IPS (in-plane switching, coplanar transition), VA (vertical alignment, vertical alignment) and other types. According to the driving method of the component, it is divided into PM (passive matrix, passive matrix) type and AM (active matrix, active matrix) type. PM is divided into static and multiplex types. AM is divided into TFT (thin film transistor, thin film transistor), MIM (metal insulator metal, metal-insulating layer metal) and other types. Types of TFT include amorphous silicon and polycrystal silicon. The latter is divided into high temperature type and low temperature type according to the manufacturing process. Depending on the type of light source, liquid crystal display elements are divided into reflective types that use natural light, transmissive types that use backlight, and semi-transmissive types that use both natural light and backlight.

在低信息量中，一般採用無源方式驅動，但是隨著信息量的加大，顯示尺寸和顯示路數的增多，串擾和對比度降低現象變得嚴重，因此一般採用有源矩陣（AM）方式驅動，目前較多的採用薄膜電晶體（TFT）來進行驅動。在AM-TFT元件中，TFT開關器件在二維網格中定址，在處於導通的有限時間內對圖元電極進行充值，之後又變成截止狀態，直至下一週期中再被定址。因此，在兩個定址週期之間，不希望圖元點上的電壓發生改變，否則圖元點的透光率會發生改變，導致顯示的不穩定。圖元點的放電速度取決於電極容量和電極間介電材料的電阻率。因此要求液晶材料有較高的電阻率、良好的化學和熱穩定性以及對電場和電磁輻射的穩定性，同時要求材料有合適的光學各向異性Δn、介電各向異性、低溫互溶性，以及較低的閾值電壓，以達到降低驅動電壓，降低功耗的目的；還要求具有較低的粘度，以滿足快速回應的需要，WO9202597、WO9116398、WO9302153、WO9116399、CN1157005A等專利中均報導了液晶組合物，但是均難以保證液晶組合物的各項性能均良好。In low information content, passive driving is generally used. However, as the amount of information increases, the display size and the number of display channels increase, crosstalk and contrast reduction become serious, so active matrix (AM) driving is generally used. , currently more thin film transistors (TFTs) are used for driving. In the AM-TFT element, the TFT switching device is addressed in a two-dimensional grid, recharging the picture element electrode during a limited period of time when it is on, and then becomes a cut-off state until it is addressed again in the next cycle. Therefore, between two addressing cycles, it is not expected that the voltage on the picture element point changes, otherwise the light transmittance of the picture element point will change, resulting in unstable display. The discharge rate of the primitive points depends on the electrode capacity and the resistivity of the dielectric material between the electrodes. Therefore, liquid crystal materials are required to have high resistivity, good chemical and thermal stability, and stability against electric fields and electromagnetic radiation. At the same time, the materials are required to have appropriate optical anisotropy Δn, dielectric anisotropy, and low-temperature mutual solubility. And a lower threshold voltage to achieve the purpose of reducing driving voltage and power consumption; it also requires lower viscosity to meet the need for rapid response. Liquid crystals are reported in patents such as WO9202597, WO9116398, WO9302153, WO9116399, and CN1157005A. composition, but it is difficult to ensure that all properties of the liquid crystal composition are good.

含有介電各向異性的絕對值大的液晶組合物的液晶顯示元件能夠降低基礎電壓值、降低驅動電壓，並能進一步降低消耗電功率。A liquid crystal display element containing a liquid crystal composition with a large absolute value of dielectric anisotropy can reduce the base voltage value, reduce the driving voltage, and further reduce power consumption.

含有較低閾值電壓的液晶組合物的液晶顯示元件能夠有效的降低顯示的功耗，特別是在消耗品，類似手機，平板電腦等可擕式電子產品有更長的續航時間。然而具有較低的閾值電壓（一般含有大介電極性基團）的液晶組合物其分子的有序度低，而反應液晶分子有序度的Kave值也會降低，從而影響到液晶材料的漏光和對比度，兩者通常難以兼顧。Liquid crystal display elements containing liquid crystal compositions with lower threshold voltages can effectively reduce display power consumption, especially in consumables, such as mobile phones, tablets and other portable electronic products, which have longer battery life. However, liquid crystal compositions with lower threshold voltages (generally containing large dielectric polar groups) have low molecular order, and the Kave value that reflects the order of liquid crystal molecules will also decrease, thus affecting the light leakage and light leakage of the liquid crystal material. Contrast is often difficult to balance between the two.

粘度小的液晶組合物，可提高液晶顯示元件回應速度。當液晶顯示元件的回應速度快時，可適用於動畫顯示。另外，向液晶顯示元件的液晶盒內注入液晶組合物時，可縮短注入時間，能夠提高作業性。旋轉粘度γ1直接影響液晶加電後的回應時間，不管是上升時間（τon ）還是下降時間（τoff ）都與液晶的旋轉粘度γ1成正比關係，上升時間（τon ）由於與液晶盒和驅動電壓有關，可以通過加大驅動電壓的方法與降低液晶盒盒厚來調節；而下降時間（τoff ）與驅動電壓無關，主要是與液晶的彈性常數與液晶盒盒厚有關，盒厚的趨薄會降低下降時間（τoff ），而不同顯示模式下，液晶分子的運動方式不一樣，TN、IPS、 VA三種模式分別與平均彈性常數K、扭曲彈性常數、彎曲彈性常數成反比關係。The liquid crystal composition with low viscosity can improve the response speed of the liquid crystal display element. When the response speed of the liquid crystal display element is fast, it can be suitable for animation display. In addition, when the liquid crystal composition is injected into the liquid crystal cell of the liquid crystal display element, the injection time can be shortened and the workability can be improved. The rotational viscosity γ1 directly affects the response time of the liquid crystal after powering on. Both the rise time (τ on ) and the fall time (τ off ) are proportional to the rotational viscosity γ1 of the liquid crystal. The rise time (τ on ) is due to the relationship between the liquid crystal cell and the liquid crystal cell. It is related to the driving voltage and can be adjusted by increasing the driving voltage and reducing the thickness of the liquid crystal cell; while the drop time (τ off ) has nothing to do with the driving voltage, but is mainly related to the elastic constant of the liquid crystal and the thickness of the liquid crystal cell. The cell thickness Thinning will reduce the drop time (τ off ), and in different display modes, the movement of liquid crystal molecules is different. The three modes of TN, IPS, and VA are inversely proportional to the average elastic constant K, twist elastic constant, and bending elastic constant respectively.

由此可知，液晶組合物的各項性能之間會相互影響，難以兼顧，特別是在保證良好的介電性能、驅動電壓和互溶性，因此，本領域亟待對此進行深入研究，開發一種液晶組合物，在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。It can be seen that the various properties of the liquid crystal composition will affect each other and it is difficult to take into consideration, especially in ensuring good dielectric properties, driving voltage and mutual solubility. Therefore, this field urgently needs to conduct in-depth research on this and develop a liquid crystal The composition can further reduce the driving voltage while maintaining the dielectric anisotropy at the same level, and has good low-temperature mutual solubility.

本發明的目的在於提供一種液晶組合物，在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。The object of the present invention is to provide a liquid crystal composition that can further reduce the driving voltage while maintaining the dielectric anisotropy at the same level, and has good low-temperature mutual solubility.

為達此目的，本發明採用以下技術方案：本發明提供了一種液晶組合物，所述液晶組合物包含至少一種通式 I 的化合物和至少一種通式 II 的化合物：I；II； R1 、R2 、R3 各自獨立地表示含有 1-10 碳原子的烷基、含有 1-10 碳原子的烷氧基或含有 2-10 碳原子的烯基； X1 表示含 2-10 碳原子的烯基。To achieve this goal, the present invention adopts the following technical solutions: The present invention provides a liquid crystal composition, which contains at least one compound of general formula I and at least one compound of general formula II: I; II; R 1 , R 2 and R 3 each independently represent an alkyl group containing 1-10 carbon atoms, an alkoxy group containing 1-10 carbon atoms or an alkenyl group containing 2-10 carbon atoms; X1 represents a 2- Alkenyl group with 10 carbon atoms.

本發明提供的液晶組合物同時包含通式 I 和通式 II 的化合物，兩種具有特定結構的化合物之間能夠相互配合，協同增效，在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。The liquid crystal composition provided by the present invention contains both compounds of general formula I and general formula II. The two compounds with specific structures can cooperate with each other and synergize, and can maintain dielectric anisotropy at the same level. further reduces the driving voltage and has good low-temperature mutual solubility.

優選地，所述通式 I 的化合物占所述液晶組合物總品質的 1-50%，例如 2%、5%、6%、8%、10%、12%、15%、18%、20%、22%、25%、28%、 30%、32%、35%、38%、40%、42%、44%、45%、48%等，優選 1-30%，進一步優選 3-30 %。Preferably, the compound of general formula I accounts for 1-50% of the total quality of the liquid crystal composition, such as 2%, 5%, 6%, 8%, 10%, 12%, 15%, 18%, 20% %, 22%, 25%, 28%, 30%, 32%, 35%, 38%, 40%, 42%, 44%, 45%, 48%, etc., preferably 1-30%, further preferably 3-30 %.

優選地，所述通式 II 的化合物占所述液晶組合物總品質的 1-50%，例如2%、5%、6%、8%、10%、12%、15%、18%、20%、22%、25%、28%、 30%、32%、35%、38%、40%、42%、44%、45%、48%等，優選 1-45%，進一步優選 1-35%。Preferably, the compound of general formula II accounts for 1-50% of the total quality of the liquid crystal composition, such as 2%, 5%, 6%, 8%, 10%, 12%, 15%, 18%, 20% %, 22%, 25%, 28%, 30%, 32%, 35%, 38%, 40%, 42%, 44%, 45%, 48%, etc., preferably 1-45%, further preferably 1-35 %.

優選地，所述通式 I 的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合：I-1；I-2；I-3；I-4；I-5； R1 具有與前文相同的限定範圍。Preferably, the compound of general formula I is any one or a combination of at least two of the compounds having the following structure: I-1; I-2; I-3; I-4; I-5; R1 has the same limited scope as before.

優選地，所述通式 II 的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合：II-1；II-2；II-3；II-4； R2 具有與前文相同的限定範圍。Preferably, the compound of general formula II is any one or a combination of at least two compounds having the following structure: II-1; II-2; II-3; II-4; R2 has the same limited scope as before.

優選地，所述液晶組合物還包括至少一種通式 III 的化合物：III R4 、R5 各自獨立表示含有1-10碳原子的烷基、含有1-10碳原子的烷氧基或含有2-10碳原子的烯基； 環A1、A2、A3各自獨立地表示、、、、、、、、或，其中虛線代表基團的接入位點； Z1 、Z2 各自獨立地表示單鍵、-CH2 CH2 -、-CH2 O-、-OCH2 -、-COO-或  -OCO-； n1為0、1或2，n1為2時，環A2相同或不同； 通式III的化合物不包含通式I的化合物； 優選地，通式III的化合物為具有如下結構的化合物中的任意一種或兩種的組合：III-1；III-2；III-3；III-4；III-5；III-6；III-7；III-8；III-9；III-10；III-11；III-12；III-13；III-14；III-15；III-16；III-17；III-18；III-19；III-20；III-21；III-22；III-23。Preferably, the liquid crystal composition further comprises at least one compound of general formula III: III R 4 and R 5 each independently represent an alkyl group containing 1-10 carbon atoms, an alkoxy group containing 1-10 carbon atoms, or an alkenyl group containing 2-10 carbon atoms; Ring A1, A2, and A3 each independently represent , , , , , , , , or , where the dotted line represents the access site of the group; Z 1 and Z 2 each independently represent a single bond, -CH 2 CH 2 -, -CH 2 O-, -OCH 2 -, -COO- or -OCO-; n1 is 0, 1 or 2, and when n1 is 2, ring A2 is the same or different; The compound of general formula III does not include the compound of general formula I; Preferably, the compound of general formula III is any one of the compounds with the following structure or a combination of both: III-1; III-2; III-3; III-4; III-5; III-6; III-7; III-8; III-9; III-10; III-11; III-12; III-13; III-14; III-15; III-16; III-17; III-18; III-19; III-20; III-21; III-22; III-23.

優選地，通式 III 的化合物占該液晶組合物總質量的 10-90%，例如12%、15%、18%、20%、22%、25%、28%、30%、32%、35%、38%、40%、42%、44%、45%、48%、50%、52%、55%、58%、60%、62%、65%、68%、70%、72%、75%、80%、85%、88%等，優選15-80%，進一步優選20-75%。Preferably, the compound of general formula III accounts for 10-90% of the total mass of the liquid crystal composition, such as 12%, 15%, 18%, 20%, 22%, 25%, 28%, 30%, 32%, 35% %, 38%, 40%, 42%, 44%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, 70%, 72%, 75%, 80%, 85%, 88%, etc., preferably 15-80%, further preferably 20-75%.

優選地，所述液晶組合物還包括至少一種通式 IV 的化合物：IV； R6 、R7 各自獨立地表示含有1-10碳原子的烷基、含有1-10碳原子的烷氧基或含有2-10碳原子的烯基； 環A4、A5表示、、、、、、、、、或，其中虛線表示基團的接入位點； Z3 表示單鍵、-CH2 CH2 -、-CH2 O-、-OCH2 -、-CO-O-、-O-CO-、-CF2 O-、-OCF2 -或-CH=CH-； L1 、L2 各自獨立地表示-F或-Cl； L3 和L4 各自獨立地表示-H或-CH3 ； n2為0、1或2，n2表示2時，環A5相同或不同； 通式IV的化合物不包括通式II的化合物 優選地，通式IV的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合：IV-1；IV-2；IV-3；IV-4；IV-5；IV-6；IV-7；IV-8；IV-9；IV-10；IV-11；IV-12；IV-13；IV-14。Preferably, the liquid crystal composition further comprises at least one compound of general formula IV: IV; R 6 and R 7 each independently represent an alkyl group containing 1-10 carbon atoms, an alkoxy group containing 1-10 carbon atoms, or an alkenyl group containing 2-10 carbon atoms; Ring A4 and A5 represent , , , , , , , , , or , where the dotted line represents the access site of the group; Z 3 represents a single bond, -CH 2 CH 2 -, -CH 2 O-, -OCH 2 -, -CO-O-, -O-CO-, -CF 2 O-, -OCF 2 -or -CH=CH-; L 1 and L 2 each independently represent -F or -Cl; L 3 and L 4 each independently represent -H or -CH 3 ; n2 is 0, 1 or 2, when n2 represents 2, ring A5 is the same or different; the compound of general formula IV does not include the compound of general formula II. Preferably, the compound of general formula IV is any one or at least two of the compounds with the following structure Combination: IV-1; IV-2; IV-3; IV-4; IV-5; IV-6; IV-7; IV-8; IV-9; IV-10; IV-11; IV-12; IV-13; IV-14.

優選地，所述通式 IV 的化合物占所述液晶組合物總品質的 5-75%，例如6%、8%、10%、12%、15%、18%、20%、22%、25%、28%、30%、32%、35%、38%、40%、42%、44%、45%、48%、50%、52%、55%、58%、60%、62%、65%、68%、70%、72%等，優選 10-70%，進一步優選 10-65%。Preferably, the compound of general formula IV accounts for 5-75% of the total quality of the liquid crystal composition, such as 6%, 8%, 10%, 12%, 15%, 18%, 20%, 22%, 25% %, 28%, 30%, 32%, 35%, 38%, 40%, 42%, 44%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, 70%, 72%, etc., preferably 10-70%, further preferably 10-65%.

本發明的另一目的在於提供一種液晶顯示器件，所述液晶顯示器件包含本發明所提供的液晶組合物。Another object of the present invention is to provide a liquid crystal display device, which contains the liquid crystal composition provided by the present invention.

相對於現有技術，本發明具有以下有益效果：Compared with the existing technology, the present invention has the following beneficial effects:

本發明提供的液晶組合物同時包含通式 I 和通式 II 的化合物，兩種具有特定結構的化合物之間能夠相互配合，協同增效，在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。The liquid crystal composition provided by the present invention contains both compounds of general formula I and general formula II. The two compounds with specific structures can cooperate with each other and synergize, and can maintain dielectric anisotropy at the same level. further reduces the driving voltage and has good low-temperature mutual solubility.

下面通過具體實施方式來進一步說明本發明的技術方案。本領域技術人員應該明瞭，所述實施例僅僅是幫助理解本發明，不應視為對本發明的具體限制。The technical solution of the present invention will be further described below through specific implementations. Those skilled in the art should understand that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

為了便於表達，在以下實施例中，液晶組合物的基團結構以表 1 中所列的代碼來表示： 表1 基團的單元結構 代碼 基團名稱 C 1,4-亞環己基 C（N） 1-氰基-1,4-亞環己基 P 1,4-亞苯基 I 2,3-二氫-茚-2,5-二基 G 2-氟-1,4-亞苯基 U 2,6-二氟-1,4-亞苯基 W 2,3-二氟-1,4-亞苯基 P（F，Cl） 2-氯-3-氟-1,4-亞苯基 P（2N） 2,3-二氰基-1,4-亞苯基 W（1） 2,3-二氟-6-甲基-1,4-亞苯基 Na（3F） 1,2,8-三氟-3,7-亞萘基 A 2-氧代六環 AI 3-氧代六環 D 1,3-二氧六環-2,5-二基 Q或1（2F）O 二氟醚基 -O- O 氧取代基 -F F 氟取代基 -CH=CH- V 烯基 -C≡C- T 炔基 V（2F） 二氟烯基 -COO- E 酯橋键 -Cn H2n+1 或-Cm H2m +1          n或m        烷基 表 1 中，虛線代表基團的接入位點。For ease of expression, in the following examples, the group structure of the liquid crystal composition is represented by the codes listed in Table 1: Table 1 The unit structure of the group code Group name C 1,4-cyclohexylene C(N) 1-cyano-1,4-cyclohexylene P 1,4-phenylene I 2,3-dihydro-indene-2,5-diyl G 2-Fluoro-1,4-phenylene U 2,6-difluoro-1,4-phenylene W 2,3-difluoro-1,4-phenylene P(F,Cl) 2-Chloro-3-fluoro-1,4-phenylene P(2N) 2,3-dicyano-1,4-phenylene W(1) 2,3-difluoro-6-methyl-1,4-phenylene Na（3F） 1,2,8-trifluoro-3,7-naphthylene A 2-oxohexacyclo AI 3-oxohexacyclo D 1,3-dioxane-2,5-diyl Q or 1(2F)O Difluoroether group -O- O oxygen substituent -F F Fluorine substituent -CH=CH- V alkenyl -C≡C- T Alkynyl V(2F) Difluoroalkenyl -COO- E ester bridge -C n H 2n+1 or -C m H 2m +1 n or m alkyl In Table 1, the dashed lines represent the access sites of the groups.

以如下結構式的化合物為例： 該結構式如用表 1 所列代碼表示，則可表達為：nCCGF，代碼中的 n 表示左端烷基的 C 原子數，例如 n 為“3”，即表示該烷基為-C3 H7 ；代碼中的 C 代表環己烷基，G 代表 2-氟-1,4-亞苯基，F 代表氟。Take the compound with the following structural formula as an example: If this structural formula is represented by the codes listed in Table 1, it can be expressed as: nCCGF. The n in the code represents the number of C atoms in the alkyl group at the left end. For example, n is "3", which means that the alkyl group is -C 3 H 7 ;C in the code represents cyclohexyl, G represents 2-fluoro-1,4-phenylene, and F represents fluorine.

對比例 1Comparative example 1

本對比例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 3CC2（III-1） 8 5PP1（III-3） 13 3CCV1（III-1） 7.5 3CPP2（III-11） 6 2CC1OWO2（IV-7） 5 3CPPC3（III-23） 2 3CC1OWO2（IV-7） 5 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8.5 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 4 This comparative example provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 3CC2(III-1) 8 5PP1(III-3) 13 3CCV1(III-1) 7.5 3CPP2(III-11) 6 2CC1OWO2 (IV-7) 5 3CPPC3 (III-23) 2 3CC1OWO2 (IV-7) 5 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8.5 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 4

對比例 2Comparative Example 2

本對比例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2（III-11） 6 3CPP2（III-11） 4 2C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 13 3CCV1（III-1） 7.5 3CPP2（III-11） 6 3CPPC3（III-23） 2 3CC1OWO2（IV-7） 5 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8.5 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 4 This comparative example provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2(III-11) 6 3CPP2(III-11) 4 2C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 13 3CCV1(III-1) 7.5 3CPP2(III-11) 6 3CPPC3 (III-23) 2 3CC1OWO2 (IV-7) 5 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8.5 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 4

對比例 3Comparative Example 3

本對比例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2（III-11） 6 3CC2（III-1） 8 5PP1（III-3） 13 3CCV1（III-1） 7.5 3CPP2（III-11） 10 3CPPC3（III-23） 2 2CC1OWO2（IV-7） 5 3CC1OWO2（IV-7） 5 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8.5 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 4 This comparative example provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2(III-11) 6 3CC2(III-1) 8 5PP1(III-3) 13 3CCV1(III-1) 7.5 3CPP2(III-11) 10 3CPPC3 (III-23) 2 2CC1OWO2 (IV-7) 5 3CC1OWO2(IV-7) 5 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8.5 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 4

實施例 1Example 1

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 2C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 13 3CCV1（III-1） 7.5 3CPP2（III-11） 6 3CPPC3（III-23） 2 3CC1OWO2（IV-7） 5 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8.5 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 4 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 2C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 13 3CCV1(III-1) 7.5 3CPP2(III-11) 6 3CPPC3 (III-23) 2 3CC1OWO2 (IV-7) 5 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8.5 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 4

實施例 2Example 2

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 2C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 8 3CCV1（III-1） 7.5 3CPP2（III-11） 11 3CPPC3（III-23） 2 3CC1OWO2（IV-7） 5 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8.5 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 4 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 2C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 8 3CCV1(III-1) 7.5 3CPP2(III-11) 11 3CPPC3 (III-23) 2 3CC1OWO2(IV-7) 5 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8.5 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 4

實施例 3Example 3

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 2C1OWO2（II-2） 5 3C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 10 3CCV1（III-1） 7.5 3CPP2（III-11） 9 3CPPC3（III-23） 2 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 7.5 3CWO2（IV-1） 9 4CWO2（IV-1） 4 3CCWO2（IV-3） 10 5CCWO2（IV-3） 9 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 2C1OWO2(II-2) 5 3C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 10 3CCV1(III-1) 7.5 3CPP2(III-11) 9 3CPPC3 (III-23) 2 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 7.5 3CWO2(IV-1) 9 4CWO2(IV-1) 4 3CCWO2(IV-3) 10 5CCWO2(IV-3) 9

實施例 4Example 4

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPPV（I-2） 6 3CPPV（I-2） 4 2C1OWO2（II-2） 5 3C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 10 3CCV1（III-1） 7.5 3CPP2（III-11） 9 3CPPC3（III-23） 2 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 7.5 3CWO2（IV-1） 9 4CWO2（IV-1） 4 3CCWO2（IV-3） 10 5CCWO2（IV-3） 9 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPPV(I-2) 6 3CPPV(I-2) 4 2C1OWO2(II-2) 5 3C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 10 3CCV1(III-1) 7.5 3CPP2(III-11) 9 3CPPC3 (III-23) 2 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 7.5 3CWO2(IV-1) 9 4CWO2(IV-1) 4 3CCWO2(IV-3) 10 5CCWO2(IV-3) 9

實施例 5Example 5

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 4C1OWO2（II-2） 5 5C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 10 3CCV1（III-1） 7.5 3CPP2（III-11） 9 3CPPC3（III-23） 2 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 7.5 3CWO2（IV-1） 9 4CWO2（IV-1） 4 3CCWO2（IV-3） 10 5CCWO2（IV-3） 9 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 4C1OWO2(II-2) 5 5C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 10 3CCV1(III-1) 7.5 3CPP2(III-11) 9 3CPPC3 (III-23) 2 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 7.5 3CWO2(IV-1) 9 4CWO2(IV-1) 4 3CCWO2(IV-3) 10 5CCWO2(IV-3) 9

實施例 6Example 6

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPPV1（I-3） 5 3CPPV1（I-3） 5 2C1OWO2（II-2） 5 3C1OWO2（II-2） 5 3CC2（III-1） 8 5PP1（III-3） 10 3CCV1（III-1） 7.5 3CPP2（III-11） 9 3CPPC3（III-23） 2 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 7.5 3CWO2（IV-1） 9 4CWO2（IV-1） 4 3CCWO2（IV-3） 10 5CCWO2（IV-3） 9 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPPV1(I-3) 5 3CPPV1(I-3) 5 2C1OWO2(II-2) 5 3C1OWO2(II-2) 5 3CC2(III-1) 8 5PP1(III-3) 10 3CCV1(III-1) 7.5 3CPP2(III-11) 9 3CPPC3 (III-23) 2 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 7.5 3CWO2(IV-1) 9 4CWO2(IV-1) 4 3CCWO2(IV-3) 10 5CCWO2(IV-3) 9

實施例 7Example 7

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 2CPP2V（I-1） 6 3CPP2V（I-1） 5 2C1OWO2（II-2） 5 3C1OWO2（II-2） 5 4C1OWO2（II-2） 4 3CC2（III-1） 8 5PP1（III-3） 8 3CCV1（III-1） 7.5 3CPPC3（III-23） 2 2CWO2（IV-1） 5.5 3CWO2（IV-1） 11 4CWO2（IV-1） 5 3CCWO2（IV-3） 8 5CCWO2（IV-3） 10 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 2CPP2V(I-1) 6 3CPP2V(I-1) 5 2C1OWO2(II-2) 5 3C1OWO2(II-2) 5 4C1OWO2(II-2) 4 3CC2(III-1) 8 5PP1(III-3) 8 3CCV1(III-1) 7.5 3CPPC3 (III-23) 2 2CWO2(IV-1) 5.5 3CWO2(IV-1) 11 4CWO2(IV-1) 5 3CCWO2(IV-3) 8 5CCWO2(IV-3) 10

實施例 8Example 8

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP1V1（I-5） 6 3CPP2V1（I-4） 4 2CPP2V（I-1） 5 2C1OWO2（II-2） 5 3C1OWO2（II-2） 5 4C1OWO2（II-2） 4 3CC2（III-1） 8 5PP1（III-3） 8 3CCV1（III-1） 7.5 3CPP2（III-11） 4 3CPPC3（III-23） 2 2CWO2（IV-1） 5.5 3CWO2（IV-1） 11 4CWO2（IV-1） 5 3CCWO2（IV-3） 8 5CCWO2（IV-3） 10 3PWP4（IV-5） 2 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP1V1(I-5) 6 3CPP2V1(I-4) 4 2CPP2V(I-1) 5 2C1OWO2(II-2) 5 3C1OWO2(II-2) 5 4C1OWO2(II-2) 4 3CC2(III-1) 8 5PP1(III-3) 8 3CCV1(III-1) 7.5 3CPP2(III-11) 4 3CPPC3 (III-23) 2 2CWO2(IV-1) 5.5 3CWO2(IV-1) 11 4CWO2(IV-1) 5 3CCWO2(IV-3) 8 5CCWO2(IV-3) 10 3PWP4 (IV-5) 2

實施例 9Example 9

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V（I-1） 5 2C1OWO2（II-2） 10 3C1OWO2（II-2） 10 4C1OWO2（II-2） 5 3CC2（III-1） 18.5 5PP1（III-3） 8 3CCV1（III-3） 7.5 3CPP2（III-11） 8 2CPP2（III-11） 6 2CCP2（III-12） 8 3CCP2（III-12） 10 3CPPC3（III-23） 2 3PWP4（IV-5） 2 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V(I-1) 5 2C1OWO2(II-2) 10 3C1OWO2(II-2) 10 4C1OWO2(II-2) 5 3CC2(III-1) 18.5 5PP1(III-3) 8 3CCV1(III-3) 7.5 3CPP2(III-11) 8 2CPP2(III-11) 6 2CCP2(III-12) 8 3CCP2(III-12) 10 3CPPC3 (III-23) 2 3PWP4 (IV-5) 2

實施例 10Example 10

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V（I-1） 5 4C1OWO2（II-2） 5 3CC2（III-1） 20.5 5PP1（III-3） 10 3CCV1（III-1） 7.5 3CPP2（III-11） 8 2CPP2（III-11） 6 2CCP2（III-12） 7 3CCP2（III-12） 7 3CPPC3（III-23） 2 2CCWO2（IV-3） 10 3CCWO2（IV-3） 10 3PWP4（IV-5） 2 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V (I-1) 5 4C1OWO2(II-2) 5 3CC2(III-1) 20.5 5PP1(III-3) 10 3CCV1(III-1) 7.5 3CPP2(III-11) 8 2CPP2(III-11) 6 2CCP2(III-12) 7 3CCP2(III-12) 7 3CPPC3 (III-23) 2 2CCWO2(IV-3) 10 3CCWO2(IV-3) 10 3PWP4 (IV-5) 2

實施例 11Example 11

本實施例提供一種液晶組合物，所述液晶組合物包括如下表所示的質量百分含量的組分： 組分 含量（%） 2CPP2V1（I-4） 6 3CPP2V1（I-4） 4 2CPP2V（I-1） 6 3CPP2V（I-1） 5 2C1OWO2（II-2） 6 3C1OWO2（II-2） 6 3CC2（III-1） 8 5PP1（III-3） 8 3CPPC3（III-23） 2 4CC1OWO2（IV-7） 4 2CWO2（IV-1） 8 3CWO2（IV-1） 11 4CWO2（IV-1） 8 3CCWO2（IV-3） 8 5CCWO2（IV-3） 10 This embodiment provides a liquid crystal composition, which includes components with mass percentages as shown in the following table: Components content(%) 2CPP2V1 (I-4) 6 3CPP2V1(I-4) 4 2CPP2V(I-1) 6 3CPP2V(I-1) 5 2C1OWO2(II-2) 6 3C1OWO2(II-2) 6 3CC2(III-1) 8 5PP1(III-3) 8 3CPPC3 (III-23) 2 4CC1OWO2 (IV-7) 4 2CWO2(IV-1) 8 3CWO2(IV-1) 11 4CWO2(IV-1) 8 3CCWO2(IV-3) 8 5CCWO2(IV-3) 10

對上述實施例和對比例中的液晶組合物進行如下性能測試： (1)           Cp（℃）表示液晶清亮點，使用熔點儀定量法測試； (2)           Δn 表示光學各向異性，使用阿貝折光儀在鈉光燈（589 nm）光源下、 25℃測試得到。Δn=ne-no，no 為尋常光的折射率，ne 為非尋常光的折射率； (3)           Δε表示介電各向異性，通過 LCR 儀測試ε∥、ε⊥值、Δε＝ε∥-ε⊥，其中，ε∥為平行于分子軸的介電常數，ε⊥為垂直于分子軸的介電常數，測試條件為 25±0.5℃、1KHz、測試盒為 VA 盒，盒厚 6 μm； (4)           η（cP）表示流動粘度，通過 E 型粘度計測定，測試條件為 25±0.5℃； (5)           γ1（mPa•s）表示旋轉粘度，通過 INSTEC:ALCTIR1LCM-2 測定，測試條件為 25±0.5℃，20 微米平行盒；性能測試 1-5 的結果如表 2 所示； (6)            通過 DMS505 儀器測量閾值電壓 V10，即在 10%相對透過率時的特徵電壓，測試條件為 25℃、方波頻率 60Hz； (7)           通過 DMS505 儀器測量飽和電壓 V90，即在 90%相對透過率時的特徵電壓，測試條件為 25℃、方波頻率 60Hz； (8)           通過 DMS505 儀器測量 100%相對透過率時的特徵電壓 V100 ，測試條件為 25℃、方波頻率 60Hz； 性能測試 6-8 的結果如表 3 所示； (9)           低溫儲存性能測試：分別在-20℃和-30℃的低溫恒溫箱進行每日觀察是否有晶體析出。 性能測試 9 的結果如表 4 所示。 表2   Cp（℃） Δn Δε η（cP） γ1（mPa•s） 對比例 1 73.7 0.106 -3.02 14.6 121 對比例 2 65.2 0.1053 -3.01 14.4 123 對比例 3 74.12 0.1050 3.05 14.2 118 實施例 1 64.9 0.1058 -3.01 14.5 120 實施例 2 74.9 0.1064 -2.95 14.3 124 實施例 3 74 0.107 -2.98 14.3 118 實施例 4 73.5 0.106 -2.94 14.2 124 實施例 5 75 0.11 -3 14.8 127 實施例 6 74 0.107 -2.95 14.6 118 實施例 7 74.9 0.11 -3.24 14.3 124 實施例 8 74.9 0.11 -3.4 14.3 124 實施例 9 71.2 0.11 -1.9 14.1 116 實施例 10 88.2 0.11 -1.8 14.1 112 實施例 11 78.9 0.11 -3.8 14.6 124 表3 V10 V90 V100 對比例 1 2.722 4.247 6.027 對比例 2 2.735 4.258 6.065 對比例 3 2.734 4.264 6.057 實施例 1 2.687 4.178 5.935 實施例 2 2.664 4.164 5.924 實施例 3 2.659 4.168 5.914 實施例 4 2.674 4.162 5.894 實施例 5 2.667 4.172 5.925 實施例 6 2.659 4.168 5.913 實施例 7 2.604 4.052 5.823 實施例 8 2.559 3.983 5.739 實施例 9 3.856 5.485 7.215 實施例 10 3.901 5.542 7.279 實施例 11 2.279 3.687 5.348 表4 -20℃ bottle -30℃ cell 對比例 1 10天NG 15天NG 對比例 2 10天NG 15天NG 對比例 3 9天NG 13天NG 實施例 1 10天OK 15天OK 實施例 2 10天OK 15天OK 實施例 3 10天OK 15天OK 實施例 4 10天OK 15天OK 實施例 5 10天OK 15天OK 實施例 6 10天OK 15天OK 實施例 7 10天OK 15天OK 實施例 8 10天OK 15天OK 實施例 9 10天OK 15天OK 實施例 10 10天OK 15天OK 實施例 11 10天OK 15天OK 注：cell 指的是液晶低溫測試盒，bottle 指的是低溫觀察瓶，NG 表示有晶體析出或液晶組合物由向列相轉變為近晶相等現象出現；OK 表示液晶組合物一直呈現向列相狀態。The following performance tests were performed on the liquid crystal compositions in the above examples and comparative examples: (1) Cp (°C) represents the clearing point of the liquid crystal, measured using a melting point instrument quantitative method; (2) Δn represents optical anisotropy, using Abbe refraction The instrument was tested under a sodium lamp (589 nm) light source at 25°C. Δn=ne-no, no is the refractive index of ordinary light, ne is the refractive index of extraordinary light; (3) Δε represents dielectric anisotropy, and the ε∥ and ε⊥ values are tested by LCR instrument, Δε=ε∥- ε⊥, where ε∥ is the dielectric constant parallel to the molecular axis, ε⊥ is the dielectric constant perpendicular to the molecular axis, the test conditions are 25±0.5℃, 1KHz, the test box is a VA box, and the box thickness is 6 μm; (4) η (cP) represents flow viscosity, measured by E-type viscometer, and the test conditions are 25±0.5°C; (5) γ1 (mPa·s) represents rotational viscosity, measured by INSTEC:ALCTIR1LCM-2, and the test conditions are: 25±0.5℃, 20 micron parallel box; the results of performance tests 1-5 are shown in Table 2; (6) The threshold voltage V10 is measured by DMS505 instrument, which is the characteristic voltage at 10% relative transmittance. The test condition is 25 ℃, square wave frequency 60Hz; (7) The saturation voltage V90 is measured by the DMS505 instrument, which is the characteristic voltage at 90% relative transmittance. The test conditions are 25℃, square wave frequency 60Hz; (8) 100% is measured by the DMS505 instrument Characteristic voltage V 100 at relative transmittance, test conditions are 25℃, square wave frequency 60Hz; The results of performance tests 6-8 are shown in Table 3; (9) Low temperature storage performance test: -20℃ and -30 respectively Observe daily whether there is crystal precipitation in a low-temperature incubator at ℃. The results of performance test 9 are shown in Table 4. Table 2 Cp（℃） Δn Δε η(cP) γ1(mPa·s) Comparative example 1 73.7 0.106 -3.02 14.6 121 Comparative example 2 65.2 0.1053 -3.01 14.4 123 Comparative example 3 74.12 0.1050 3.05 14.2 118 Example 1 64.9 0.1058 -3.01 14.5 120 Example 2 74.9 0.1064 -2.95 14.3 124 Example 3 74 0.107 -2.98 14.3 118 Example 4 73.5 0.106 -2.94 14.2 124 Example 5 75 0.11 -3 14.8 127 Example 6 74 0.107 -2.95 14.6 118 Example 7 74.9 0.11 -3.24 14.3 124 Example 8 74.9 0.11 -3.4 14.3 124 Example 9 71.2 0.11 -1.9 14.1 116 Example 10 88.2 0.11 -1.8 14.1 112 Example 11 78.9 0.11 -3.8 14.6 124 table 3 V10 V90 V100 Comparative example 1 2.722 4.247 6.027 Comparative example 2 2.735 4.258 6.065 Comparative example 3 2.734 4.264 6.057 Example 1 2.687 4.178 5.935 Example 2 2.664 4.164 5.924 Example 3 2.659 4.168 5.914 Example 4 2.674 4.162 5.894 Example 5 2.667 4.172 5.925 Example 6 2.659 4.168 5.913 Example 7 2.604 4.052 5.823 Example 8 2.559 3.983 5.739 Example 9 3.856 5.485 7.215 Example 10 3.901 5.542 7.279 Example 11 2.279 3.687 5.348 Table 4 -20℃ bottle -30℃ cell Comparative example 1 10 days NG 15 days NG Comparative example 2 10 days NG 15 days NG Comparative example 3 9 days NG 13 days NG Example 1 10 days OK 15 days OK Example 2 10 days OK 15 days OK Example 3 10 days OK 15 days OK Example 4 10 days OK 15 days OK Example 5 10 days OK 15 days OK Example 6 10 days OK 15 days OK Example 7 10 days OK 15 days OK Example 8 10 days OK 15 days OK Example 9 10 days OK 15 days OK Example 10 10 days OK 15 days OK Example 11 10 days OK 15 days OK Note: cell refers to the liquid crystal low-temperature test box, and bottle refers to the low-temperature observation bottle. NG means that there is crystal precipitation or the liquid crystal composition changes from the nematic phase to the smectic phase. OK means that the liquid crystal composition has always been in the nematic phase. condition.

由表 2-4 的結果可知，本發明提供的液晶組合物在保持介電各向異性在相同水準的前提下可進一步降低驅動電壓，並且具有良好的低溫互溶性。本發明通過上述實施例來說明本發明的詳細方法，但本發明並不局限於上述詳細方法，即不意味著本發明必須依賴上述詳細方法才能實施。所屬技術領域的技術人員應該明瞭，對本發明的任何改進，對本發明產品各原料的等效替換及輔助成分的添加、具體方式的選擇等，均落在本發明的保護範圍和公開範圍之內。It can be seen from the results in Table 2-4 that the liquid crystal composition provided by the present invention can further reduce the driving voltage while maintaining the dielectric anisotropy at the same level, and has good low-temperature mutual solubility. The present invention illustrates the detailed methods of the present invention through the above embodiments, but the present invention is not limited to the above detailed methods, that is, it does not mean that the present invention must rely on the above detailed methods to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent replacement of raw materials of the product of the present invention, addition of auxiliary ingredients, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims (7)

一種液晶組合物，其包含至少兩種通式I的化合物和至少一種通式II的化合物和至少一種通式IV的化合物：
Figure 109118325-A0305-02-0028-45
Figure 109118325-A0305-02-0028-2
Figure 109118325-A0305-02-0028-3
 R1、R2、R3各自獨立地表示含有1-10碳原子的烷基、含有1-10碳原子的烷氧基或含有2-10碳原子的烯基；X1表示含2-10碳原子的烯基；R6、R7各自獨立地表示含有1-10碳原子的烷基、含有1-10碳原子的烷氧基或含有2-10碳原子的烯基；環A4、A5表示
Figure 109118325-A0305-02-0028-41
Figure 109118325-A0305-02-0028-7
或
Figure 109118325-A0305-02-0028-8
，其中虛線表示基團的接入位點；Z3表示單鍵、-CH2CH2-、-CH2O-、-OCH2-、-CO-O-、-O-CO-、-CF2O-、-OCF2-或-CH=CH-；L1、L2各自獨立地表示-F或-Cl；L3和L4各自獨立地表示-H或-CH3；n2為0、1或2，n2表示2時，環A5相同或不同；通式IV的化合物不包括通式II的化合物；通式IV的化合物占該液晶組合物總質量的5-75%；其中，通式I的化合物占所述液晶組合物總質量的10-30%，且通式II的化合物占所述液晶組合物總質量的5-35%； 其中，該液晶組合物還包括至少一種選自如下通式III-18至III-23的化合物：
Figure 109118325-A0305-02-0029-10
Figure 109118325-A0305-02-0029-11
Figure 109118325-A0305-02-0029-13
Figure 109118325-A0305-02-0029-14
Figure 109118325-A0305-02-0029-15
Figure 109118325-A0305-02-0029-16
 其中，R4、R5各自獨立表示含有1-10碳原子的烷基、含有1-10碳原子的烷氧基或含有2-10碳原子的烯基。 A liquid crystal composition comprising at least two compounds of general formula I and at least one compound of general formula II and at least one compound of general formula IV:
Figure 109118325-A0305-02-0028-45
Figure 109118325-A0305-02-0028-2
Figure 109118325-A0305-02-0028-3
 R 1 , R 2 , and R 3 each independently represent an alkyl group containing 1 to 10 carbon atoms, an alkoxy group containing 1 to 10 carbon atoms, or an alkenyl group containing 2 to 10 carbon atoms; X1 represents an alkyl group containing 2 to 10 carbon atoms. Alkenyl group of atoms; R 6 and R 7 each independently represent an alkyl group containing 1-10 carbon atoms, an alkoxy group containing 1-10 carbon atoms or an alkenyl group containing 2-10 carbon atoms; rings A4 and A5 represent
Figure 109118325-A0305-02-0028-41
Figure 109118325-A0305-02-0028-7
or
Figure 109118325-A0305-02-0028-8
, where the dotted line represents the access site of the group; Z 3 represents a single bond, -CH 2 CH 2 -, -CH 2 O-, -OCH 2 -, -CO-O-, -O-CO-, -CF 2 O-, -OCF 2 -or -CH=CH-; L 1 and L 2 each independently represent -F or -Cl; L 3 and L 4 each independently represent -H or -CH 3 ; n2 is 0, 1 or 2, when n2 represents 2, ring A5 is the same or different; the compound of general formula IV does not include the compound of general formula II; the compound of general formula IV accounts for 5-75% of the total mass of the liquid crystal composition; among them, the compound of general formula The compound I accounts for 10-30% of the total mass of the liquid crystal composition, and the compound of general formula II accounts for 5-35% of the total mass of the liquid crystal composition; wherein, the liquid crystal composition also includes at least one selected from the following Compounds of general formulas III-18 to III-23:
Figure 109118325-A0305-02-0029-10
Figure 109118325-A0305-02-0029-11
Figure 109118325-A0305-02-0029-13
Figure 109118325-A0305-02-0029-14
Figure 109118325-A0305-02-0029-15
Figure 109118325-A0305-02-0029-16
 Among them, R 4 and R 5 each independently represent an alkyl group containing 1 to 10 carbon atoms, an alkoxy group containing 1 to 10 carbon atoms, or an alkenyl group containing 2 to 10 carbon atoms. 如請求項1所述之液晶組合物，其中，通式I的化合物為具有如下結構的化合物中的至少兩種的組合：
Figure 109118325-A0305-02-0029-42
Figure 109118325-A0305-02-0029-18
Figure 109118325-A0305-02-0029-19
Figure 109118325-A0305-02-0029-20
Figure 109118325-A0305-02-0030-21
 R1具有與請求項1相同的限定範圍。 The liquid crystal composition according to claim 1, wherein the compound of general formula I is a combination of at least two compounds having the following structure:
Figure 109118325-A0305-02-0029-42
Figure 109118325-A0305-02-0029-18
Figure 109118325-A0305-02-0029-19
Figure 109118325-A0305-02-0029-20
Figure 109118325-A0305-02-0030-21
 R 1 has the same limited scope as claim 1. 如請求項1所述之液晶組合物，其中，通式II的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合：
Figure 109118325-A0305-02-0030-22
Figure 109118325-A0305-02-0030-23
Figure 109118325-A0305-02-0030-24
Figure 109118325-A0305-02-0030-25
 R2具有與請求項1相同之限定範圍。 The liquid crystal composition according to claim 1, wherein the compound of general formula II is any one or a combination of at least two compounds having the following structure:
Figure 109118325-A0305-02-0030-22
Figure 109118325-A0305-02-0030-23
Figure 109118325-A0305-02-0030-24
Figure 109118325-A0305-02-0030-25
 R 2 has the same limited scope as claim 1. 如請求項1所述之液晶組合物，其中，通式III的化合物占該液晶組合物總質量的10-90%。 The liquid crystal composition according to claim 1, wherein the compound of general formula III accounts for 10-90% of the total mass of the liquid crystal composition. 如請求項1所述之液晶組合物，其中，通式IV的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合：
Figure 109118325-A0305-02-0030-26
Figure 109118325-A0305-02-0030-27
Figure 109118325-A0305-02-0030-28
Figure 109118325-A0305-02-0030-29
Figure 109118325-A0305-02-0031-30
Figure 109118325-A0305-02-0031-31
Figure 109118325-A0305-02-0031-32
Figure 109118325-A0305-02-0031-33
Figure 109118325-A0305-02-0031-44
Figure 109118325-A0305-02-0031-43
Figure 109118325-A0305-02-0031-36
Figure 109118325-A0305-02-0031-37
Figure 109118325-A0305-02-0031-38
Figure 109118325-A0305-02-0031-39
 The liquid crystal composition according to claim 1, wherein the compound of general formula IV is any one or a combination of at least two compounds having the following structure:
Figure 109118325-A0305-02-0030-26
Figure 109118325-A0305-02-0030-27
Figure 109118325-A0305-02-0030-28
Figure 109118325-A0305-02-0030-29
Figure 109118325-A0305-02-0031-30
Figure 109118325-A0305-02-0031-31
Figure 109118325-A0305-02-0031-32
Figure 109118325-A0305-02-0031-33
Figure 109118325-A0305-02-0031-44
Figure 109118325-A0305-02-0031-43
Figure 109118325-A0305-02-0031-36
Figure 109118325-A0305-02-0031-37
Figure 109118325-A0305-02-0031-38
Figure 109118325-A0305-02-0031-39
 如請求項5所述之液晶組合物，其中，通式IV的化合物占該液晶組合物總質量的5-75%。 The liquid crystal composition according to claim 5, wherein the compound of general formula IV accounts for 5-75% of the total mass of the liquid crystal composition. 一種液晶顯示器件，其特徵在於：該液晶顯示器件包括請求項1-6中任一項所述的液晶組合物。 A liquid crystal display device, characterized in that: the liquid crystal display device includes the liquid crystal composition described in any one of claims 1-6.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201915148A (en) * 2017-09-30 2019-04-16 大陸商石家莊誠志永華顯示材料有限公司 Liquid crystal composition
CN109796991A (en) * 2017-11-16 2019-05-24 石家庄诚志永华显示材料有限公司 Liquid-crystal compounds and liquid crystal compound and its display device containing lateral trifluoromethyl

Family Cites Families (7)

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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201915148A (en) * 2017-09-30 2019-04-16 大陸商石家莊誠志永華顯示材料有限公司 Liquid crystal composition
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