TWI761716B - Liquid crystal composition and display device thereof - Google Patents
Liquid crystal composition and display device thereof Download PDFInfo
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Abstract
本發明公開了一種液晶組合物,所述液晶組合物包含:一種或多種通式Ⅰ的化合物;一種或多種通式Ⅱ的化合物;一種或多種通式M的化合物;以及一種或多種通式A-2的化合物。本發明還公開了包括本發明的液晶組合物的液晶顯示器件。本發明提供的液晶組合物具有高的清亮點、大的光學各向異性、大的介電各向異性、較低的驅動電壓、較好的低溫互溶性、較大的透過率、以及較大的Kave 值,使得包含本發明的液晶組合物的液晶顯示器件具有小的光散射、以及高的對比度,特別適用於主動矩陣薄膜電晶體(AM-TFT)驅動的液晶顯示元件中。The invention discloses a liquid crystal composition comprising: one or more compounds of general formula I; one or more compounds of general formula II; one or more compounds of general formula M; and one or more compounds of general formula A -2 compound. The present invention also discloses a liquid crystal display device comprising the liquid crystal composition of the present invention. The liquid crystal composition provided by the present invention has high clearing point, large optical anisotropy, large dielectric anisotropy, low driving voltage, good low temperature mutual solubility, large transmittance, and large The Kave value of the present invention makes the liquid crystal display device comprising the liquid crystal composition of the present invention have small light scattering and high contrast ratio, and is especially suitable for the liquid crystal display element driven by active matrix thin film transistor (AM-TFT).
Description
本發明涉及液晶材料領域,具體涉及液晶組合物及其顯示器件。The present invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition and a display device thereof.
液晶顯示元件可以在以鐘錶、電子計算器為代表的各種家庭用電器、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, panels for automobiles, 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), IPS (in-plane switching, coplanar transition), VA (vertical alignment, vertical alignment) and other types. According to the driving method of the components, it is divided into PM (passive matrix, passive matrix) type and AM (active matrix, active matrix) type. PM is divided into static (static) and multiplex (multiplex) and other types. AM is divided into TFT (thin film transistor, thin film transistor), MIM (metal insulator metal, metal-insulator-metal) and other types. The types of TFT are amorphous silicon (amorphous silicon) and polycrystalline silicon (polycrystal silicon). The latter are classified into high temperature type and low temperature type according to the manufacturing process. Liquid crystal display elements are classified into a reflective type using natural light, a transmissive type using a backlight, and a transflective type using both natural light and a backlight depending on the type of light source.
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,否則圖元點的透過率會發生改變,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,要求液晶材料具有較高的電阻率,同時要求液晶材料具有合適的光學各向異性Δn(Δn值一般在0.08-0.13左右),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;還要求其具有較低的粘度,以滿足快速回應的需要。這類液晶組合物已經被很多文獻報導,例如WO9202597、WO9116398、WO9302153、WO9116399、CN1157005A等。In low information volume, passive mode is generally used to drive, but as the information volume increases, the display size and the number of display channels increase, and the phenomenon of crosstalk and contrast reduction becomes serious, so the active matrix (AM) mode is generally used to drive. At present, thin film transistors (TFTs) are mostly used for driving. In an AM-TFT element, the TFT switching devices are addressed in a two-dimensional grid, recharging the picture element electrodes for a limited time during which they are on, and then turn off again until they are addressed again in the next cycle. Therefore, between two addressing cycles, it is not expected that the voltage on the pixel point will change, otherwise the transmittance of the pixel point will change, resulting in unstable display. The discharge rate of the feature point depends on the electrode capacity and the resistivity of the inter-electrode dielectric material. Therefore, the liquid crystal material is required to have a high resistivity, and at the same time, the liquid crystal material is required to have a suitable optical anisotropy Δn (the value of Δn is generally around 0.08-0.13), and a lower threshold voltage to reduce the driving voltage and power. It is also required to have a lower viscosity to meet the needs of rapid response. Such liquid crystal compositions have been reported in many literatures, such as WO9202597, WO9116398, WO9302153, WO9116399, CN1157005A and the like.
研究表明,影響液晶顯示元件的對比度的最主要因素為液晶材料的漏光,而影響漏光的主要因素是光散射(LC Scattering),而LC Scattering與平均彈性常數Kave 的關係式如下: LC Scattering ∝, 其中,d表示液晶盒的間距,ne 表示非尋常光折射率,no 表示尋常光折射率。由該關係式可知,LC Scattering與Kave 成反比例,在提高Kave 的情況下,可以降低液晶材料的漏光。Studies have shown that the most important factor affecting the contrast of liquid crystal display elements is the light leakage of the liquid crystal material, and the main factor affecting light leakage is light scattering (LC Scattering), and the relationship between LC Scattering and the average elastic constant Kave is as follows: LC Scattering ∝ , where d represents the spacing of the liquid crystal cells, ne represents the refractive index of extraordinary light, and no represents the refractive index of ordinary light. It can be seen from this relational expression that LC Scattering is inversely proportional to Kave , and when the Kave is increased, the light leakage of the liquid crystal material can be reduced.
此外,對比度(CR)與亮度(L)的關係式如下: CR=L255 /L0 ×100%, 其中,L255 為開態亮度,L0 為關態亮度。可以看出,顯著影響CR的應該是L0 的變化。關態下,L0 與液晶分子的介電無關,與液晶材料本身的LC Scattering相關,LC Scattering愈小,L0 也愈小,CR從而也就會顯著提高。In addition, the relationship between the contrast ratio (CR) and the brightness (L) is as follows: CR=L 255 /L 0 ×100%, where L 255 is the on-state brightness, and L 0 is the off-state brightness. It can be seen that it should be the change in L 0 that significantly affects CR. In the off state, L 0 has nothing to do with the dielectric of the liquid crystal molecules, but is related to the LC Scattering of the liquid crystal material itself.
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,並且能進一步降低消耗電功率。A liquid crystal display element containing a liquid crystal composition having a large absolute value of dielectric anisotropy can lower the base voltage value, lower the driving voltage, and further reduce power consumption.
含有具有較低閾值電壓的液晶組合物的液晶顯示元件能夠有效地降低顯示的功耗,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的液晶組合物(一般含有大介電極性基團)的液晶分子的有序度低,而反映液晶分子有序度的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。The liquid crystal display element containing the liquid crystal composition with lower threshold voltage can effectively reduce the power consumption of display, especially in consumables, such as mobile phones, tablet computers and other portable electronic products, which have longer battery life. However, the liquid crystal composition with a lower threshold voltage (generally containing large dielectric polar groups) has a low degree of ordering of liquid crystal molecules, and the Kave value reflecting the ordering degree of liquid crystal molecules will also decrease, thus affecting the liquid crystal material. Light leakage and contrast, both are often difficult to balance.
粘度小的液晶組合物可以提高液晶顯示元件的回應速度。當液晶顯示元件的回應速度快時,其可以適用於動畫顯示。另外,向液晶顯示元件的液晶盒內注入液晶組合物時,可以縮短注入時間,能夠提高作業性。A liquid crystal composition with a low viscosity can improve the response speed of a liquid crystal display element. When the response speed of the liquid crystal display element is fast, it can be suitable for animation display. Moreover, when injecting a liquid crystal composition into the liquid crystal cell of a liquid crystal display element, the injection time can be shortened, and workability|operativity can be improved.
現有技術中公開了具有較低功耗、較快回應速度的液晶組合物,如專利文獻CN102858918A,但現有技術中的液晶組合物存在環保問題(如含氯化合物的使用)、使用壽命短(如對UV或熱的穩定性差)、對比度低(如日光下顯示幕幕泛白),以及無法兼顧在液晶電視、平板電腦等要求適當的光學各向異性、適當的介電各向異性、高的電壓保持率、良好的抗UV穩定性及高溫穩定性的性能均衡問題,不能同時滿足各方面指標。Liquid crystal compositions with lower power consumption and faster response speed are disclosed in the prior art, such as patent document CN102858918A, but the liquid crystal compositions in the prior art have environmental problems (such as the use of chlorine-containing compounds), short service life (such as Poor stability to UV or heat), low contrast (such as whitening of the display screen in sunlight), and inability to take into account the requirements for proper optical anisotropy, proper dielectric anisotropy, high The performance balance of voltage retention, good UV stability and high temperature stability cannot meet all indicators at the same time.
從液晶材料的製備角度出發,液晶材料的各項性能是互相牽制影響的,某項性能指標的提高可能會使其他性能發生變化。因此,製備各方面性能都合適的液晶材料往往需要創造性勞動。From the perspective of the preparation of liquid crystal materials, the properties of liquid crystal materials are mutually restrained, and the improvement of a certain performance index may change other properties. Therefore, the preparation of liquid crystal materials with suitable properties in all aspects often requires creative work.
液晶材料是液晶顯示器的重要組成部分,目前全球液晶顯示器具有很大的市場需求,其多用於電子電器產品中,但其生命週期較短。較短的生命週期自然存在廢棄污染等問題,在如今綠色環保問題日益受到社會各界的重視的情況下,如若能從源頭控制,即在液晶材料的調製過程中選擇環保綠色的材質,就能極大降低處理廢棄液晶顯示器時所付出的環境代價。因此,製備各方面性能都合適、又經濟綠色環保的液晶材料往往更需要創造性勞動。Liquid crystal materials are an important part of liquid crystal displays. At present, liquid crystal displays have a great market demand in the world. They are mostly used in electronic and electrical products, but their life cycles are short. There are naturally problems such as waste and pollution in the short life cycle. Now that the green environmental protection issue has been paid more and more attention by all walks of life, if it can be controlled from the source, that is, the selection of environmentally friendly and green materials in the modulation process of liquid crystal materials, can greatly Reduce the environmental cost of disposing of discarded LCD monitors. Therefore, the preparation of liquid crystal materials with suitable performance in all aspects, economical and green, and environmental protection often requires more creative work.
發明目的: 針對現有技術的缺陷,本發明的目的在於提供一種具有高的清亮點、大的光學各向異性、大的介電各向異性、較低的驅動電壓、較好的低溫互溶性、較大的透過率、以及較大的Kave 值的液晶組合物。本發明的目的還在於提供一種包含所述液晶組合物的液晶顯示器件。 Purpose of the invention: In view of the defects of the prior art, the purpose of the present invention is to provide a kind of high clearing point, large optical anisotropy, large dielectric anisotropy, low driving voltage, good low temperature mutual solubility, Larger transmittance, and larger K ave value of the liquid crystal composition. Another object of the present invention is to provide a liquid crystal display device comprising the liquid crystal composition.
本發明的技術方案: 為了實現上述發明目的,本發明提供了一種液晶組合物,所述液晶組合物包含: 一種或多種通式Ⅰ的化合物Ⅰ; 一種或多種通式Ⅱ的化合物Ⅱ; 一種或多種通式M的化合物M;以及 一種或多種通式A-2的化合物A-2, 其中, R1 和RA2 各自獨立地表示含有1-12個碳原子的直鏈或支鏈的烷基、、或,所述含有1-12個碳原子的直鏈或支鏈的烷基中的1個或不相鄰的2個以上的-CH2 -可分別獨立地被-CH=CH-、-C≡C-、-O-、-CO-、-CO-O-或-O-CO-替代,並且所述含有1-12個碳原子的直鏈或支鏈的烷基、、或中的一個或更多個-H可分別獨立地被-F或-Cl取代; R2 表示-H、含有1-12個碳原子的直鏈的烷基或烷氧基、含有2-12個碳原子的烯基或烯氧基; RM1 和RM2 各自獨立地表示-H、含有1-12個碳原子的直鏈或支鏈的烷基、、或,所述含有1-12個碳原子的直鏈或支鏈的烷基中的1個或不相鄰的2個以上的-CH2 -可分別獨立地被-CH=CH-、-C≡C-、-O-、-CO-、-CO-O-或-O-CO-替代; Z1 、Z2 和Z3 各自獨立地表示單鍵、-CH2 CH2 -、-CF2 CF2 -、-CF2 O-、-OCF2 -、-CO-O-、-O-CO-、-O-CO-O-、-CH=CH-、-CF=CF-、-CH2 O-或-OCH2 -; ZA21 和ZA22 各自獨立地表示單鍵、-CH2 CH2 -、-CF2 CF2 -、-CO-O-、-O-CO-、-O-CO-O-、-CH=CH-、-CF=CF-、-CH2 O-或-OCH2 -; ZM1 和ZM2 各自獨立地表示單鍵、-CO-O-、-O-CO-、-CH2 O-、-OCH2 -、-CH=CH-、-C≡C-、-CH2 CH2 -或-(CH2 )4 -; L1 、L2 、L3 、L4 、LA21 和LA22 各自獨立地表示-H、含有1-3個碳原子的烷基、或鹵素; X和XA2 各自獨立地表示鹵素、含有1-5個碳原子的鹵代烷基或鹵代烷氧基、含有2-5個碳原子的鹵代烯基或鹵代烯氧基; 環和環各自獨立地表示或,其中,中一個或更多個-CH2 -可被-O-替代,一個或更多個環中單鍵可被雙鍵替代,中的一個或更多個-H可被-CN、-F或-Cl取代,一個或更多個環中-CH=可被-N=替代; 環、環和環各自獨立地表示或,其中中的一個或更多個-CH2 -可被-O-替代,中的至多一個-H可被鹵素取代; 環表示或; 環和環各自獨立地表示、、或,其中,、和中至多1個-CH2 -可被-O-替代,一個或更多個環中單鍵可被雙鍵替代,和中的一個或更多個-H可被-CN、-F或-Cl取代,一個或更多個環中-CH=可被-N=替代; n1和n2各自獨立地表示0、1或2,且0≤n1+n2≤3,且當n1=2時,環可以相同或不同,Z1 可以相同或不同,當n2=2時,環可以相同或不同,Z2 可以相同或不同; a和b各自獨立地表示0至5的整數; nM1 和nA2 各自獨立地表示0、1、2或3,且當nM1 =2或3時,環可以相同或不同,ZM2 可以相同或不同;當nA2 =1且ZA21 和ZA22 均表示單鍵時,環和環還可以各自獨立地表示;當nA2 =2或3時,環可以相同或不同,ZA21 可以相同或不同;並且 所述通式Ⅰ的化合物中並不包含所述通式A-2的化合物;所述通式M的化合物中並不包含所述通式Ⅱ的化合物。 Technical solution of the present invention: In order to achieve the above purpose of the invention, the present invention provides a liquid crystal composition, the liquid crystal composition comprising: one or more compounds of the general formula I I; one or more compounds of general formula II II; one or more compounds of general formula M M; and one or more compounds of general formula A-2 A-2, wherein, R 1 and R A2 each independently represent a straight-chain or branched alkyl group containing 1-12 carbon atoms, , or , 1 or non-adjacent 2 or more -CH 2 - in the linear or branched alkyl group containing 1-12 carbon atoms can be independently replaced by -CH=CH-, -C≡ C-, -O-, -CO-, -CO-O- or -O-CO- is substituted, and the linear or branched alkyl group containing 1-12 carbon atoms, , or One or more -H in can be independently substituted by -F or -Cl; R 2 represents -H, straight-chain alkyl or alkoxy containing 1-12 carbon atoms, containing 2-12 Alkenyl or alkenyloxy of carbon atoms; R M1 and R M2 each independently represent -H, a linear or branched alkyl group containing 1-12 carbon atoms, , or , 1 or non-adjacent 2 or more -CH 2 - in the linear or branched alkyl group containing 1-12 carbon atoms can be independently replaced by -CH=CH-, -C≡ C-, -O-, -CO-, -CO-O- or -O-CO- substitution; Z 1 , Z 2 and Z 3 each independently represent a single bond, -CH 2 CH 2 -, -CF 2 CF 2- , -CF2O-, -OCF2-, -CO- O- , -O-CO-, -O-CO- O- , -CH= CH- , -CF=CF-, -CH2O - or -OCH 2 -; Z A21 and Z A22 each independently represent a single bond, -CH 2 CH 2 -, -CF 2 CF 2 -, -CO-O-, -O-CO-, -O-CO- O-, -CH=CH-, -CF=CF-, -CH 2 O- or -OCH 2 -; Z M1 and Z M2 each independently represent a single bond, -CO-O-, -O-CO-, -CH 2 O-, -OCH 2 -, -CH=CH-, -C≡C-, -CH 2 CH 2 - or -(CH 2 ) 4 -; L 1 , L 2 , L 3 , L 4 , L A21 and L A22 each independently represent -H, an alkyl group containing 1 to 3 carbon atoms, or a halogen; X and X A2 each independently represent a halogen, a halogenated alkyl group containing 1 to 5 carbon atoms, or a halogenated alkoxy group , haloalkenyl or haloalkenyloxy containing 2-5 carbon atoms; ring and ring represent independently or ,in, One or more -CH 2 - can be replaced by -O-, single bond can be replaced by double bond in one or more rings, One or more -H in one or more rings can be replaced by -CN, -F or -Cl, -CH= can be replaced by -N= in one or more rings; ring ,ring and ring represent independently or ,in One or more of the -CH 2 - may be replaced by -O-, At most one of the -Hs may be substituted by halogen; ring express or ; ring and ring represent independently , , or ,in, , and At most 1 -CH 2 - can be replaced by -O-, single bond can be replaced by double bond in one or more rings, and One or more -H in the ring can be replaced by -CN, -F or -Cl, -CH= can be replaced by -N= in one or more rings; n1 and n2 each independently represent 0, 1 or 2 , and 0≤n1+n2≤3, and when n1=2, the ring Can be the same or different, Z 1 can be the same or different, when n2=2, the ring may be the same or different, Z 2 may be the same or different; a and b each independently represent an integer from 0 to 5; n M1 and n A2 each independently represent 0, 1, 2 or 3, and when n M1 =2 or 3 time, ring Can be the same or different, Z M2 can be the same or different; when n A2 = 1 and both Z A21 and Z A22 represent a single bond, the ring and ring can also be expressed independently ; When n A2 = 2 or 3, the ring can be the same or different, Z A21 can be the same or different; and the compounds of the general formula I do not include the compounds of the general formula A-2; the compounds of the general formula M do not include the general formula II compound of.
在本發明的一些實施方案中,通式Ⅰ的化合物的含量有必要根據低溫下的溶解性、轉變溫度、電可靠性、透過率、對比度、雙折射率、工藝適應性、滴痕、燒屏、介電各向異性等所要求的性能而適宜調整。In some embodiments of the present invention, the content of the compound of general formula I is necessary according to solubility at low temperature, transition temperature, electrical reliability, transmittance, contrast, birefringence, process suitability, drip marks, burn-in , dielectric anisotropy and other required properties can be adjusted appropriately.
關於通式Ⅰ的化合物的占本發明的液晶組合物的重量百分比的優選:相對於本發明的液晶組合物的總重量,通式Ⅰ的化合物占本發明的液晶組合物的重量百分比優選的下限值為0.1%,0.5%,1%,2%,3%,4%,5%,7%,8%,9%,10%,11%,12%,13%,14%,15%,20%,30%或40%;相對於本發明的液晶組合物的總重量,通式I的化合物的占本發明的液晶組合物的重量百分比優選上限值為60%,55%,50%,45%,40%,35%,30%,28%,27%,26%,25.5%,25%,24.5%,24%,22%,20%,18%,16%或15%。Regarding the preferred weight percentage of the compound of the general formula I in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percentage of the compound of the general formula I in the liquid crystal composition of the present invention is as follows Limits are 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15% , 20%, 30% or 40%; relative to the total weight of the liquid crystal composition of the present invention, the preferred upper limit of the weight percentage of the compound of the general formula I in the liquid crystal composition of the present invention is 60%, 55%, 50% %, 45%, 40%, 35%, 30%, 28%, 27%, 26%, 25.5%, 25%, 24.5%, 24%, 22%, 20%, 18%, 16% or 15%.
在本發明的一些實施方案中,通式Ⅰ的化合物占液晶組合物的重量百分比為1%-60%。In some embodiments of the present invention, the compound of general formula I accounts for 1%-60% by weight of the liquid crystal composition.
在本發明的一些實施方案中,在通式Ⅰ的化合物中,當n1=0且n2=1時,Z2 和Z3 中至少一個不為單鍵;當n1=1且n2=0時,Z1 和Z3 中至少一個不為單鍵;當n1=1且n2=1時,Z1 、Z2 和Z3 各自獨立地表示單鍵、-CH2 CH2 -、-CF2 CF2 -、-CO-O-、-O-CO-、-O-CO-O-、-CH=CH-、-CF=CF-、-CH2 O-或-OCH2 -。In some embodiments of the present invention, in the compound of general formula I, when n1=0 and n2=1, at least one of Z 2 and Z 3 is not a single bond; when n1=1 and n2=0, At least one of Z 1 and Z 3 is not a single bond; when n1=1 and n2=1, Z 1 , Z 2 and Z 3 each independently represent a single bond, -CH 2 CH 2 -, -CF 2 CF 2 -, -CO-O-, -O-CO-, -O-CO-O-, -CH=CH-, -CF=CF-, -CH2O- or -OCH2- .
在本發明的一些實施方案中,在通式Ⅰ的化合物中,R1 優選為含有1-8個碳原子的烷基或烷氧基、含有2-8個碳原子的烯基或烯氧基;進一步優選為含有1-5個碳原子的烷基或烷氧基、含有2-5個碳原子的烯基或烯氧基。In some embodiments of the present invention, in the compounds of general formula I, R 1 is preferably alkyl or alkoxy containing 1-8 carbon atoms, alkenyl or alkenyloxy containing 2-8 carbon atoms ; further preferably an alkyl or alkoxy group containing 1-5 carbon atoms, an alkenyl or alkenyloxy group containing 2-5 carbon atoms.
在本發明的一些實施方案中,環和環各自獨立地表示、、、、、、、、、、、、、、、、或。In some embodiments of the invention, the ring and ring represent independently , , , , , , , , , , , , , , , , or .
在本發明的一些實施方案中,L1 、L2 、L3 和L4 各自獨立地表示-H、-CH3 、-F或-Cl。In some embodiments of the invention, L 1 , L 2 , L 3 and L 4 each independently represent -H, -CH 3 , -F or -Cl.
在本發明的一些實施方案中,通式Ⅰ的化合物選自由如下化合物組成的組:Ⅰ-1;Ⅰ-2;Ⅰ-3;Ⅰ-4;Ⅰ-5;Ⅰ-6;Ⅰ-7;Ⅰ-8;Ⅰ-9;Ⅰ-10;Ⅰ-11;Ⅰ-12; 其中, L1 、L2 、L5 、L6 和L7 各自獨立地表示-H或-F; L4 表示-H或-CH3 ; Rx 、Ry 和Rz 各自獨立地表示-CH2 -或-O-;並且 n1表示0或1。In some embodiments of the present invention, the compound of general formula I is selected from the group consisting of: I-1; I-2; I-3; I-4; I-5; I-6; I-7; I-8; I-9; I-10; I-11; I-12; wherein, L 1 , L 2 , L 5 , L 6 and L 7 each independently represent -H or -F; L 4 represents -H or -CH 3 ; R x , R y and R z each independently ground represents -CH 2 - or -O-; and n1 represents 0 or 1.
在本發明的一些實施方案中,在通式I-1至通式I-8的化合物中,L5 優選地表示-H。In some embodiments of the present invention, in the compounds of general formula I-1 to general formula I-8, L 5 preferably represents -H.
在本發明的一些實施方案中,通式Ⅰ的化合物優選地選自由通式Ⅰ-1、通式Ⅰ-2、通式Ⅰ-3、通式Ⅰ-4、通式Ⅰ-5、通式Ⅰ-6、通式Ⅰ-7和通式Ⅰ-8的化合物組成的組。In some embodiments of the present invention, the compound of general formula I is preferably selected from the group consisting of general formula I-1, general formula I-2, general formula I-3, general formula I-4, general formula I-5, general formula The group consisting of compounds of general formula I-6, general formula I-7 and general formula I-8.
在本發明的一些實施方案中,本發明的液晶組合物優選地含有至少兩種通式Ⅰ的化合物,其中至少一種通式Ⅰ的化合物選自由通式Ⅰ-1、通式Ⅰ-2、通式Ⅰ-3、通式Ⅰ-4、通式Ⅰ-5、通式Ⅰ-6、通式Ⅰ-7和通式Ⅰ-8的化合物組成的組。In some embodiments of the present invention, the liquid crystal composition of the present invention preferably contains at least two compounds of general formula I, wherein at least one compound of general formula I is selected from general formula I-1, general formula I-2, general formula I-2, general formula I The group consisting of compounds of formula I-3, general formula I-4, general formula I-5, general formula I-6, general formula I-7 and general formula I-8.
在本發明的一些實施方案中,本發明的液晶組合物優選地含有至少三種通式Ⅰ的化合物,其中至少一種通式Ⅰ的化合物選自由通式Ⅰ-1、通式Ⅰ-2、通式Ⅰ-3、通式Ⅰ-4、通式Ⅰ-5、通式Ⅰ-6、通式Ⅰ-7和通式Ⅰ-8的化合物組成的組;進一步優選地含有至少兩種選自由通式Ⅰ-1、通式Ⅰ-2、通式Ⅰ-3、通式Ⅰ-4、通式Ⅰ-5、通式Ⅰ-6、通式Ⅰ-7和通式Ⅰ-8的化合物組成的組的化合物。In some embodiments of the present invention, the liquid crystal composition of the present invention preferably contains at least three compounds of general formula I, wherein at least one compound of general formula I is selected from general formula I-1, general formula I-2, general formula The group consisting of compounds of general formula I-3, general formula I-4, general formula I-5, general formula I-6, general formula I-7 and general formula I-8; further preferably containing at least two compounds selected from the group consisting of general formula The group consisting of compounds of general formula I-2, general formula I-3, general formula I-4, general formula I-5, general formula I-6, general formula I-7 and general formula I-8 compound of.
關於通式Ⅱ的化合物的占本發明的液晶組合物的重量百分比的優選:相對於本發明的液晶組合物的總重量,通式Ⅱ的化合物占本發明的液晶組合物的重量百分比優選的下限值為0.1%,0.5%,1%,2%,3%,4%,5%,7%,8%,9%或10%;相對於本發明的液晶組合物的總重量,通式Ⅱ的化合物的占本發明的液晶組合物的重量百分比優選上限值為50%,45%,40%,35%,30%,28%,27%,26%,25.5%,25%,24.5%,24%,22%,20%,18%,16%或15%。Regarding the preferred weight percent of the compound of the general formula II in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percent of the compound of the general formula II in the liquid crystal composition of the present invention is as follows The limit is 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, 7%, 8%, 9% or 10%; relative to the total weight of the liquid crystal composition of the present invention, the general formula The preferred upper limit of the weight percentage of the compound II in the liquid crystal composition of the present invention is 50%, 45%, 40%, 35%, 30%, 28%, 27%, 26%, 25.5%, 25%, 24.5% %, 24%, 22%, 20%, 18%, 16% or 15%.
在本發明的一些實施方案中,通式Ⅱ的化合物占液晶組合物的重量百分比為0.1%-50%。In some embodiments of the present invention, the compound of general formula II accounts for 0.1%-50% by weight of the liquid crystal composition.
在本發明的一些實施方案中,在通式Ⅱ的化合物中,a和b各自獨立地表示0、1或2。In some embodiments of the present invention, in the compound of formula II, a and b each independently represent 0, 1 or 2.
在本發明的一些實施方案中,在通式Ⅱ的化合物中,R2 優選地為含有1-8個碳原子的烷基或烷氧基、含有2-8個碳原子的烯基或烯氧基;進一步優選地為含有1-5個碳原子的烷基或烷氧基、含有2-5個碳原子的烯基或烯氧基。In some embodiments of the present invention, in the compound of general formula II , R is preferably alkyl or alkoxy containing 1-8 carbon atoms, alkenyl or alkenyl containing 2-8 carbon atoms further preferably an alkyl or alkoxy group containing 1 to 5 carbon atoms, an alkenyl or alkenyloxy group containing 2 to 5 carbon atoms.
在本發明的一些實施方案中,通式Ⅱ的化合物選自由如下化合物組成的組:Ⅱ-1;Ⅱ-2;Ⅱ-3;以及Ⅱ-4, 其中, Lx 表示-H或-CH3 。In some embodiments of the present invention, the compound of general formula II is selected from the group consisting of: II-1; II-2; II-3; and II-4, wherein L x represents -H or -CH 3 .
在本發明的一些實施方案中,通式Ⅱ的化合物優選自由通式Ⅱ-2、通式Ⅱ-3和通式Ⅱ-4的化合物組成的組;特別優選自由通式Ⅱ-3和通式Ⅱ-4的化合物組成的組。In some embodiments of the present invention, the compound of general formula II is preferably selected from the group consisting of compounds of general formula II-2, general formula II-3 and general formula II-4; particularly preferably free from the group consisting of general formula II-3 and general formula The group consisting of compounds of II-4.
在本發明的一些實施方案中,通式M的化合物的介電各向異性的絕對值不超過3;優選地,通式M的化合物的介電各向異性的絕對值不超過2。In some embodiments of the present invention, the compound of formula M has an absolute value of dielectric anisotropy of not more than 3; preferably, the absolute value of the dielectric anisotropy of the compound of formula M is not more than 2.
在本發明的一些實施方案中,在通式M的化合物中,RM1 和RM2 各自獨立地優選為含有1~10個碳原子的直鏈的烷基、含有1~9個碳原子的直鏈的烷氧基、或含有2~10個碳原子的直鏈的烯基;進一步優選為含有1~8個碳原子的直鏈的烷基、含有1~7個碳原子的直鏈的烷氧基、或含有2~8個碳原子的直鏈的烯基;再進一步優選為含有1~5個碳原子的直鏈的烷基、含有1~4個碳原子的直鏈的烷氧基、或含有2~5個碳原子的直鏈的烯基。In some embodiments of the present invention, in the compound of general formula M, R M1 and R M2 are each independently preferably a straight-chain alkyl group containing 1-10 carbon atoms, a straight-chain alkyl group containing 1-9 carbon atoms Chain alkoxy or straight-chain alkenyl containing 2 to 10 carbon atoms; more preferably straight-chain alkyl containing 1 to 8 carbon atoms, straight-chain alkane containing 1 to 7 carbon atoms Oxy group, or straight-chain alkenyl group containing 2 to 8 carbon atoms; more preferably a straight-chain alkyl group containing 1 to 5 carbon atoms, and a straight-chain alkoxy group containing 1 to 4 carbon atoms , or a straight-chain alkenyl group containing 2 to 5 carbon atoms.
在本發明的一些實施方案中,RM1 和RM2 各自獨立地優選為含有2~8個碳原子的直鏈的烯基;進一步優選為含有2~5個碳原子的直鏈的烯基。In some embodiments of the present invention, R M1 and R M2 are each independently preferably a straight-chain alkenyl group containing 2-8 carbon atoms; more preferably a straight-chain alkenyl group containing 2-5 carbon atoms.
在本發明的一些實施方案中,優選地,RM1 和RM2 中的一者為含有2~5個碳原子的直鏈的烯基,而另一者為含有1~5個碳原子的直鏈的烷基。In some embodiments of the present invention, preferably, one of R M1 and R M2 is a straight-chain alkenyl group containing 2 to 5 carbon atoms, and the other is a straight-chain alkenyl group containing 1 to 5 carbon atoms. chain alkyl.
在本發明的一些實施方案中,RM1 和RM2 兩者均各自獨立地優選為含有1~8個碳原子的直鏈的烷基、或含有1~7個碳原子的直鏈的烷氧基;進一步優選地,RM1 和RM2 兩者均各自獨立地為含有1~5個碳原子的直鏈的烷基、或含有1~4個碳原子的直鏈的烷氧基。In some embodiments of the present invention, both R M1 and R M2 are each independently preferably a linear alkyl group containing 1 to 8 carbon atoms, or a linear alkoxy group containing 1 to 7 carbon atoms further preferably, both R M1 and R M2 are each independently a linear alkyl group containing 1 to 5 carbon atoms, or a linear alkoxy group containing 1 to 4 carbon atoms.
在本發明的一些實施方案中,優選地,RM1 和RM2 中的一者為含有1~5個碳原子的直鏈的烷基,而另一者為含有1~5個碳原子的直鏈的烷基、或含有1~4個碳原子的直鏈的烷氧基;進一步優選地,RM1 和RM2 兩者均各自獨立地為含有1~5個碳原子的直鏈的烷基。In some embodiments of the present invention, preferably, one of R M1 and R M2 is a straight-chain alkyl group containing 1-5 carbon atoms, and the other is a straight-chain alkyl group containing 1-5 carbon atoms A chain alkyl group or a straight-chain alkoxy group containing 1 to 4 carbon atoms; further preferably, both R M1 and R M2 are each independently a straight chain alkyl group containing 1 to 5 carbon atoms .
本發明中的烯基優選地選自式(V1)至式(V9)中的任一者所表示的基團,特別優選為式(V1)、式(V2)、式(V8)或(V9)。式(V1)至式(V9)所表示的基團如下所示: , 其中,*表示所鍵結的環結構中的碳原子。The alkenyl group in the present invention is preferably selected from the groups represented by any one of formula (V1) to formula (V9), particularly preferably formula (V1), formula (V2), formula (V8) or (V9) ). The groups represented by formula (V1) to formula (V9) are as follows: , where * represents a carbon atom in the bonded ring structure.
本發明中的烯氧基優選地選自式(OV1)至式(OV9)中的任一者所表示的基團,特別優選為式(OV1)、式(OV2)、式(OV8)或(OV9)。式(OV1)至式(OV9)所表示的基團如下所示: , 其中,*表示所鍵結的環結構中的碳原子。The alkenyloxy group in the present invention is preferably selected from the group represented by any one of formula (OV1) to formula (OV9), particularly preferably formula (OV1), formula (OV2), formula (OV8) or ( OV9). The groups represented by formula (OV1) to formula (OV9) are as follows: , where * represents a carbon atom in the bonded ring structure.
在本發明的一些實施方案中,通式M的化合物選自由如下化合物組成的組:M1;M2;M3;M4;M5;M6;M7;M8;M9;M10M11;M12;M13;M14;M15;M16;M17;M18;M19;M20;M21;M22;M23;以及M24。In some embodiments of the invention, the compound of general formula M is selected from the group consisting of: M1; M2; M3; M4; M5; M6; M7; M8; M9; M10 M11; M12; M13; M14; M15; M16; M17; M18; M19; M20; M21; M22; M23; and M24.
在本發明的一些實施方案中,關於通式M的化合物的含量,必須視低溫下的溶解性、轉變溫度、電可靠性、雙折射率、工藝適應性、滴下痕跡、燒屏、介電各向異性等所需的性能而適當進行調整。In some embodiments of the present invention, regarding the content of the compound of general formula M, the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drip marks, burn-in, dielectric, etc. must be considered. It is appropriately adjusted according to the required properties such as anisotropy.
關於通式M的化合物的占本發明的液晶組合物的重量百分比的優選:相對於本發明的液晶組合物的總重量,通式M的化合物占本發明的液晶組合物的重量百分比優選的下限值為0.1%,1%,10%,20%,30%,40%或50%;相對於本發明的液晶組合物的總重量,通式M的化合物占本發明的液晶組合物的重量百分比優選的上限值為90%,85%,80%,75%,70%,65%,60%,55%,50%,45%,35%或25%。Regarding the preferred weight percentage of the compound of the general formula M in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percentage of the compound of the general formula M in the liquid crystal composition of the present invention is as follows The limit is 0.1%, 1%, 10%, 20%, 30%, 40% or 50%; with respect to the total weight of the liquid crystal composition of the present invention, the compound of general formula M accounts for the weight of the liquid crystal composition of the present invention Preferred upper limits for percentages are 90%, 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, 35% or 25%.
在本發明的一些實施方案中,通式M的化合物占液晶組合物的重量百分比為0.1%-90%。In some embodiments of the present invention, the compound of general formula M accounts for 0.1%-90% by weight of the liquid crystal composition.
關於通式M的化合物的含量,在需要保持本發明的液晶組合物粘度較低、且回應時間較短時,優選其下限值較高、且上限值較高;進一步地,在需要保持本發明的液晶組合物的清亮點較高、且溫度穩定性良好時,優選其下限值較高、且上限值較高;在為了將驅動電壓保持為較低、且使介電各向異性的絕對值變大時,優選使其下限值變低、且上限值變低。Regarding the content of the compound of the general formula M, when it is necessary to keep the viscosity of the liquid crystal composition of the present invention low and the response time short, the lower limit value is preferably higher and the upper limit value is higher; When the clearing point of the liquid crystal composition of the present invention is high and the temperature stability is good, it is preferable that the lower limit value is higher and the upper limit value is higher; When the absolute value of the anisotropy becomes large, it is preferable to make the lower limit value lower and the upper limit value lower.
在重視可靠性的情形時,優選RM1 和RM2 均為烷基;在重視降低化合物的揮發性的情形時,優選RM1 和RM2 均為烷氧基;在重視粘度降低的情形時,優選RM1 和RM2 中至少一者為烯基。When emphasis is placed on reliability, both R M1 and R M2 are preferably alkyl groups; when emphasis is placed on reducing the volatility of the compound, both R M1 and R M2 are preferably alkoxy groups; when emphasis is placed on viscosity reduction, Preferably at least one of R M1 and R M2 is an alkenyl group.
在本發明的一些實施方案中,通式M的化合物特別優選自由通式M1、通式M2、通式M3、通式M4、通式M7、通式M8、通式M9、通式M10、通式M11、通式M13、通式M16、通式M17、通式M18、通式M19、通式M20、通式M21、通式M22、通式M23以及通式M24的化合物組成的組。In some embodiments of the present invention, compounds of general formula M are particularly preferably free from general formula M1, general formula M2, general formula M3, general formula M4, general formula M7, general formula M8, general formula M9, general formula M10, general formula A group consisting of compounds of formula M11, general formula M13, general formula M16, general formula M17, general formula M18, general formula M19, general formula M20, general formula M21, general formula M22, general formula M23 and general formula M24.
在本發明的一些實施方案中,通式M的化合物優選地選自由通式M1、通式M2、通式M4、通式M9、通式M10、通式M11、通式M13、通式M20、通式M21、通式M22、通式M23以及通式M24的化合物組成的組。In some embodiments of the present invention, the compound of general formula M is preferably selected from the group consisting of general formula M1, general formula M2, general formula M4, general formula M9, general formula M10, general formula M11, general formula M13, general formula M20, The group consisting of compounds of general formula M21, general formula M22, general formula M23 and general formula M24.
在本發明的一些實施方案中,在通式M1的化合物中,RM1 優選為含有1~7個碳原子的直鏈或支鏈的烷基或烷氧基;進一步優選為含有1~5個碳原子的直鏈或支鏈的烷基或烷氧基。In some embodiments of the present invention, in the compound of general formula M1, R M1 is preferably a linear or branched alkyl or alkoxy group containing 1 to 7 carbon atoms; more preferably, it contains 1 to 5 carbon atoms. A straight or branched chain alkyl or alkoxy group of carbon atoms.
關於通式M1的化合物的占本發明的液晶組合物的重量百分比的優選:相對於本發明的液晶組合物的總重量,通式M1的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,3%,5%,7%,10%,13%,15%,17%,20%,23%,25%或30%;相對於本發明的液晶組合物的總重量,通式M1的化合物的占本發明的液晶組合物的重量百分比優選的上限值為60%,55%,50%,45%,40%,37%,35%,33%,30%,27%,25%,23%,20%,17%,15%,13%或10%。Regarding the preferred weight percent of the compound of the general formula M1 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percent of the compound of the general formula M1 in the liquid crystal composition of the present invention The lower limit is 1%, 3%, 5%, 7%, 10%, 13%, 15%, 17%, 20%, 23%, 25% or 30%; relative to the total amount of the liquid crystal composition of the present invention By weight, the preferred upper limit of the weight percentage of the compound of the general formula M1 in the liquid crystal composition of the present invention is 60%, 55%, 50%, 45%, 40%, 37%, 35%, 33%, 30% , 27%, 25%, 23%, 20%, 17%, 15%, 13% or 10%.
為了特別改善本發明的液晶組合物的響應時間,優選通式M1的化合物中RM1 為乙基、正丙基、丁基或戊基、且RM2 為甲基或甲氧基的化合物,通式M1的化合物中RM1 為乙基、正丙基、丁基或戊基、且RM2 為乙基或乙氧基的化合物,或者通式M1的化合物中RM1 為正丙基、丁基或戊基、且RM2 為正丙基或丙氧基的化合物。In order to particularly improve the response time of the liquid crystal composition of the present invention, in the compound of general formula M1, R M1 is preferably ethyl, n-propyl, butyl or pentyl, and R M2 is methyl or methoxy. In the compound of formula M1, R M1 is ethyl, n-propyl, butyl or pentyl, and R M2 is the compound of ethyl or ethoxy, or in the compound of general formula M1, R M1 is n-propyl, butyl or pentyl, and R M2 is a compound of n-propyl or propoxy.
相對於本發明的液晶組合物的總重量,通式M1的化合物中RM1 為正丙基、且RM2 為乙基的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,13%,15%,18%或20%;相對於本發明的液晶組合物的總重量,通式M1的化合物中RM1 為正丙基、且RM2 為乙基的化合物的占本發明的液晶組合物的重量百分比優選的上限值為20%,17%,15%,13%,10%,8%,7%或6%。With respect to the total weight of the liquid crystal composition of the present invention, in the compound of the general formula M1, R M1 is n-propyl, and R M2 is an ethyl group. The preferred lower limit of the weight percent of the liquid crystal composition of the present invention is: 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18% or 20%; relative to the total weight of the liquid crystal composition of the present invention, R M1 in the compound of the general formula M1 The preferred upper limit of the weight percentage of the compound that is n-propyl and R M2 is ethyl in the liquid crystal composition of the present invention is 20%, 17%, 15%, 13%, 10%, 8%, 7% or 6%.
關於通式M2的化合物的占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M2的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%或10%;相對於本發明的液晶組合物的總重量,通式M2的化合物的上限值為20%,15%,13%,10%,8%,7%,6%,5%或3%。Regarding the preferred weight percentage of the compound of general formula M2 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percentage of the compound of general formula M2 in the liquid crystal composition of the present invention is as follows The limit is 1%, 2%, 3%, 5%, 7% or 10%; relative to the total weight of the liquid crystal composition of the present invention, the upper limit of the compound of general formula M2 is 20%, 15%, 13% %, 10%, 8%, 7%, 6%, 5% or 3%.
關於通式M4的化合物的占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M4的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%或10%;相對於本發明的液晶組合物的總重量,通式M4的化合物的占本發明的液晶組合物的重量百分比優選的上限值為20%,15%,13%,10%,8%,7%,6%,5%或3%。Regarding the preferred weight percentage of the compound of general formula M4 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percentage of the compound of general formula M4 in the liquid crystal composition of the present invention is as follows The limit is 1%, 2%, 3%, 5%, 7% or 10%; relative to the total weight of the liquid crystal composition of the present invention, the weight percentage of the compound of the general formula M4 in the liquid crystal composition of the present invention is preferably The upper limit is 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5% or 3%.
關於通式M9的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M9的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,14%,16%,20%,23%,26%,30%,35%或40%;相對於本發明的液晶組合物的總重量,通式M9的化合物的占本發明的液晶組合物的重量百分比優選的上限值為50%,40%,35%,30%,20%,15%,10%或5%。Regarding the preferred weight percentage of the compound of general formula M9 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limit of the weight percentage of the compound of general formula M9 in the liquid crystal composition of the present invention value is 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35% or 40%; relative to the liquid crystal of the present invention The total weight of the composition, the weight percentage of the compound of general formula M9 in the liquid crystal composition of the present invention is preferably 50%, 40%, 35%, 30%, 20%, 15%, 10% or 5%. %.
在本發明的一些實施方案中,視低溫下的溶解性、轉變溫度、電可靠性、雙折射率等所要求的性能,優選含有通式M9的化合物中RM1 為含有2-4個碳原子的直鏈或支鏈的烯基、且RM2 為CH3 -的化合物,所述含有2-4個碳原子的直鏈或支鏈的烯基進一步優選為或。In some embodiments of the present invention, depending on the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferred that R M1 in the compound containing the general formula M9 contains 2-4 carbon atoms The straight-chain or branched alkenyl group, and R M2 is CH 3 - compound, the straight-chain or branched alkenyl group containing 2-4 carbon atoms is more preferably or .
相對於本發明的液晶組合物的總重量,通式M9的化合物中RM1 為或、且RM2 為CH3 -的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,3%,5%,7%,9%,11%,12%,13%,18%或21%,並且優選上限值為45%,40%,35%,30%,25%,23%,20%,18%,15%,13%,10%或8%。在同時含有所述兩種化合物時,相對於本發明的液晶組合物的總重量,所述兩種化合物的占本發明的液晶組合物的重量百分比優選的下限值為3%,5%,7%,9%,11%,13%,15%,19%,24%或30%,並且優選上限值為45%,40%,35%,30%,25%,23%,20%,18%,15%、13%、11%或9%。With respect to the total weight of the liquid crystal composition of the present invention, R M1 in the compound of the general formula M9 is or , and the preferred lower limit of the weight percentage of the compound whose R M2 is CH 3 - in the liquid crystal composition of the present invention is 1%, 3%, 5%, 7%, 9%, 11%, 12%, 13% , 18% or 21%, and preferably the upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10% or 8%. When the two compounds are contained at the same time, relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limits of the weight percentage of the two compounds in the liquid crystal composition of the present invention are 3%, 5%, 7%, 9%, 11%, 13%, 15%, 19%, 24% or 30%, and preferably the upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20% , 18%, 15%, 13%, 11% or 9%.
關於通式M10的化合物的占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M10的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,4%,5%,7%,10%,14%,16%或20%;相對於本發明的液晶組合物的總重量,通式M10的化合物的占本發明的液晶組合物的重量百分比優選的上限值為45%,40%,35%,30%,20%,15%,10%或5%。Regarding the preferred weight percentage of the compound of general formula M10 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred weight percentage of the compound of general formula M10 in the liquid crystal composition of the present invention is as follows Limits are 1%, 2%, 3%, 4%, 5%, 7%, 10%, 14%, 16% or 20%; with respect to the total weight of the liquid crystal composition of the invention, the compound of general formula M10 The preferred upper limit of the weight percentage of the liquid crystal composition of the present invention is 45%, 40%, 35%, 30%, 20%, 15%, 10% or 5%.
在本發明的一些實施方案中,視低溫下的溶解性、轉變溫度、電可靠性、雙折射率等所要求的性能,優選含有通式M10的化合物中RM1 為含有2-4個碳原子的直鏈或支鏈的烯基、且RM2 為CH3 -的化合物,所述含有2-4個碳原子的直鏈或支鏈的烯基進一步優選為或。In some embodiments of the present invention, depending on the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferred that R M1 in the compound containing the general formula M10 contain 2-4 carbon atoms The straight-chain or branched alkenyl group, and R M2 is CH 3 - compound, the straight-chain or branched alkenyl group containing 2-4 carbon atoms is more preferably or .
相對於本發明的液晶組合物的總重量,通式M10的化合物中RM1 為或、且RM2 為CH3 -的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,3%,4%,5%,7%,9%,11%,12%,13%,18%或20%,並且優選上限值為40%,35%,30%,25%,23%,20%,18%,15%,13%,10%或8%。在同時含有所述兩種化合物時,相對於本發明的液晶組合物的總重量,所述兩種化合物的占本發明的液晶組合物的重量百分比優選的下限值為3%,5%,7%,9%,11%,13%,15%,19%,24%或30%,並且優選上限值為45%,40%,35%,30%,25%,23%,20%,18%,15%或13%。With respect to the total weight of the liquid crystal composition of the present invention, R M1 in the compound of the general formula M10 is or , and the preferred lower limit of the weight percentage of the compound whose R M2 is CH 3 - in the liquid crystal composition of the present invention is 1%, 3%, 4%, 5%, 7%, 9%, 11%, 12% , 13%, 18% or 20%, and preferably the upper limit is 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10% or 8%. When the two compounds are contained at the same time, relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limits of the weight percentage of the two compounds in the liquid crystal composition of the present invention are 3%, 5%, 7%, 9%, 11%, 13%, 15%, 19%, 24% or 30%, and preferably the upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20% , 18%, 15% or 13%.
關於通式M11的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M11的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,14%,16%,20%,23%,26%,30%,35%或40%;相對於本發明的液晶組合物的總重量,通式M11的化合物的占本發明的液晶組合物的重量百分比優選的上限值為50%,40%,35%,30%,20%,15%,10%或5%。Regarding the preferred weight percentage of the compound of the general formula M11 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limit of the weight percentage of the compound of the general formula M11 to the liquid crystal composition of the present invention value is 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35% or 40%; relative to the liquid crystal of the present invention The total weight of the composition, the preferred upper limit of the weight percentage of the compound of the general formula M11 in the liquid crystal composition of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10% or 5%. %.
在本發明的一些實施方案中,通式M11的化合物優選RM1 為正丙基或正戊基、且RM2 為C2 H5 -的化合物,或優選RM1 為或、且RM2 為正丙基的化合物,或優選RM1 為正丙基、正丁基或正戊基、且RM2 為CH3 O-的化合物,特別優選RM1 為正丙基、且RM2 為C2 H5 -的化合物。In some embodiments of the present invention, the compound of general formula M11 is preferably a compound in which R M1 is n-propyl or n-pentyl, and R M2 is C 2 H 5 -, or preferably R M1 is or , and R M2 is a compound of n-propyl, or preferably R M1 is n-propyl, n-butyl or n-pentyl, and R M2 is a compound of CH 3 O-, particularly preferably R M1 is n-propyl, and R A compound in which M2 is C 2 H 5 -.
關於通式M13的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M13的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,14%,16%,20%,23%,26%,30%,35%或40%;相對於本發明的液晶組合物的總重量,通式M13的化合物的占本發明的液晶組合物的重量百分比優選的上限值為50%,40%,35%,30%,20%,15%,10%或5%。Regarding the preferred weight percentage of the compound of general formula M13 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limit of the weight percentage of the compound of general formula M13 in the liquid crystal composition of the present invention value is 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35% or 40%; relative to the liquid crystal of the present invention The total weight of the composition, the preferred upper limit of the weight percentage of the compound of the general formula M13 in the liquid crystal composition of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10% or 5%. %.
在本發明的一些實施方案中,通式M13的化合物優選RM1 和RM2 各自獨立地表示含有2-5個碳原子的直鏈或支鏈的烷基的化合物,或優選RM1 和RM2 中的一者為或、且而另一者為CH3 -或C2 H5 -的化合物。In some embodiments of the present invention, the compound of general formula M13 is preferably a compound in which R M1 and R M2 each independently represent a linear or branched alkyl group containing 2 to 5 carbon atoms, or preferably R M1 and R M2 one of the or , and the other is a compound of CH 3 - or C 2 H 5 -.
關於通式M15的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M15的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,12%,14%,16%,18%,20%,23%,26%,30%,35%或40%;相對於本發明的液晶組合物的總重量,通式M15的化合物的占本發明的液晶組合物的重量百分比優選的上限值為50%,40%,35%,30%,25%,22%,20%,18%,15%,12%,10%,8%或5%。Regarding the preferred weight percentage of the compound of general formula M15 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limit of the weight percentage of the compound of general formula M15 in the liquid crystal composition of the present invention Values are 1%, 2%, 3%, 5%, 7%, 10%, 12%, 14%, 16%, 18%, 20%, 23%, 26%, 30%, 35% or 40%; Relative to the total weight of the liquid crystal composition of the present invention, the preferred upper limit of the weight percentage of the compound of the general formula M15 in the liquid crystal composition of the present invention is 50%, 40%, 35%, 30%, 25%, 22% %, 20%, 18%, 15%, 12%, 10%, 8% or 5%.
關於通式M16的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M16的化合物的占本發明的液晶組合物的重量百分比優選的下限值為1%,2%,3%,5%,7%,10%,12%,14%,16%,18%,20%,23%,26%,30%,35%或40%;相對於本發明的液晶組合物的總重量,通式M16的化合物的占本發明的液晶組合物的重量百分比優選的上限值為50%,40%,35%,30%,25%,22%,20%,18%,15%,12%,10%,8%或5%。Regarding the preferred weight percentage of the compound of general formula M16 in the liquid crystal composition of the present invention: relative to the total weight of the liquid crystal composition of the present invention, the preferred lower limit of the weight percentage of the compound of general formula M16 in the liquid crystal composition of the present invention Values are 1%, 2%, 3%, 5%, 7%, 10%, 12%, 14%, 16%, 18%, 20%, 23%, 26%, 30%, 35% or 40%; Relative to the total weight of the liquid crystal composition of the present invention, the preferred upper limit of the weight percentage of the compound of the general formula M16 in the liquid crystal composition of the present invention is 50%, 40%, 35%, 30%, 25%, 22% %, 20%, 18%, 15%, 12%, 10%, 8% or 5%.
關於通式M20~M24的化合物的占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式M20~M24的化合物的優選總重量百分比的下限值為1%,2%,3%,5%,7%,10%,14%,16%或20%;相對於本發明的液晶組合物的總重量,通式M20~M24的化合物的優選總重量百分比的上限值為30%,25%,23%,20%,18%,15%,12%,10%或5%。Regarding the weight percent of the compounds of the general formulas M20 to M24 in the liquid crystal composition of the present invention is preferably: relative to the total weight of the liquid crystal composition of the present invention, the lower limit of the preferred total weight percent of the compounds of the general formulas M20 to M24 is 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16% or 20%; relative to the total weight of the liquid crystal composition of the present invention, the preferred total weight of the compounds of general formula M20~M24 Percentages are capped at 30%, 25%, 23%, 20%, 18%, 15%, 12%, 10% or 5%.
在本發明的一些實施方案中,通式A-2的化合物選自由如下化合物組成的組:A-2-1;A-2-2;A-2-3;A-2-4;A-2-5;A-2-6;A-2-7;A-2-8;A-2-9;A-2-10;A-2-11;A-2-12;A-2-13;A-2-14;以及A-2-15, 其中, RA2 表示含有1-8個碳原子的直鏈或支鏈的烷基,所述含有1-8個碳原子的直鏈或支鏈的烷基中的1個或不相鄰的2個以上的-CH2 -可分別獨立地被-CH=CH-、-C≡C-、-O-、-CO-、-CO-O-或-O-CO-替代,並且存在於這些基團中的一個或更多個-H可分別獨立地被-F或-Cl取代; LA21 、LA22 、LA23 、LA24 和LA25 各自獨立地表示-H或-F;並且 XA2 表示-F、-CF3 、-OCF3 或-CH2 CH2 CH=CF2 。In some embodiments of the present invention, the compound of general formula A-2 is selected from the group consisting of: A-2-1; A-2-2; A-2-3; A-2-4; A-2-5; A-2-6; A-2-7; A-2-8; A-2-9; A-2-10; A-2-11; A-2-12; A-2-13; A-2-14; and A-2-15, wherein R A2 represents a linear or branched alkyl group containing 1-8 carbon atoms, and one of the linear or branched alkyl groups containing 1-8 carbon atoms Or two or more non-adjacent -CH 2 - can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO- , and one or more -H present in these groups can be independently replaced by -F or -Cl respectively; L A21 , L A22 , L A23 , L A24 and L A25 each independently represent -H or - F; and X A2 represents -F, -CF 3 , -OCF 3 or -CH 2 CH 2 CH=CF 2 .
關於通式A-2的化合物占本發明的液晶組合物的重量百分比優選:相對於本發明的液晶組合物的總重量,通式A-2的化合物的占本發明的液晶組合物的重量百分比優選的下限值為0.1%,1%,2%,3%,4%,5%,6%,7%,8%,9%,10%,12%,14%,15%,17%,18%或20%;相對於本發明的液晶組合物的總重量,通式A-2的化合物的占本發明的液晶組合物的重量百分比優選的上限值為80%,75%,70%,65%,60%,55%,50%,45%,40%,35%,30%或25%。Regarding the weight percentage of the compound of general formula A-2 in the liquid crystal composition of the present invention, it is preferable to: relative to the total weight of the liquid crystal composition of the present invention, the weight percentage of the compound of general formula A-2 in the liquid crystal composition of the present invention The preferred lower limit values are 0.1%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14%, 15%, 17% , 18% or 20%; relative to the total weight of the liquid crystal composition of the present invention, the preferred upper limit of the weight percentage of the compound of the general formula A-2 in the liquid crystal composition of the present invention is 80%, 75%, 70% %, 65%, 60%, 55%, 50%, 45%, 40%, 35%, 30% or 25%.
在本發明的一些實施方案中,通式A-2的化合物占液晶組合物的重量百分比為0.1%-80%。In some embodiments of the present invention, the compound of general formula A-2 accounts for 0.1%-80% by weight of the liquid crystal composition.
關於通式A-2的化合物的優選含量,在將本發明的液晶組合物的粘度保持為較低、且回應速度快的情況下,優選使其下限值略低、且使上限值略低;進一步地,在將本發明的液晶組合物的清亮點保持為較高、且溫度穩定性良好的情況下,優選使其下限值略低、且使上限值略低;此外,為了將驅動電壓保持為較低、而欲增大介電各向異性的絕對值時,優選使其下限值略高、且使上限值略高。Regarding the preferable content of the compound of the general formula A-2, when the viscosity of the liquid crystal composition of the present invention is kept low and the response speed is fast, it is preferable to make the lower limit slightly lower and the upper limit slightly lower. Further, when the clearing point of the liquid crystal composition of the present invention is kept high and the temperature stability is good, it is preferable to make the lower limit value slightly lower and the upper limit value slightly lower; In order to increase the absolute value of the dielectric anisotropy while keeping the driving voltage low, it is preferable to make the lower limit value slightly higher and the upper limit value slightly higher.
在本發明的一些實施方案中,通式A-2的化合物優選地選自由通式A-2-5、通式A-2-8、通式A-2-11、通式A-2-12和通式A-2-14的化合物組成的組。In some embodiments of the present invention, the compound of general formula A-2 is preferably selected from the group consisting of general formula A-2-5, general formula A-2-8, general formula A-2-11, general formula A-2- 12 and the group consisting of compounds of general formula A-2-14.
除上述化合物以外,本發明的液晶組合物也可含有通常的向列型液晶、近晶型液晶、膽固醇型液晶、抗氧化劑、紫外線吸收劑、紅外線吸收劑、聚合性單體或光穩定劑等。In addition to the above-mentioned compounds, the liquid crystal composition of the present invention may also contain ordinary nematic liquid crystals, smectic liquid crystals, cholesteric liquid crystals, antioxidants, ultraviolet absorbers, infrared absorbers, polymerizable monomers, light stabilizers, and the like .
如下顯示優選加入到根據本發明的液晶組合物中的可能的摻雜劑。;;;;;;;;;;;;以及。Possible dopants which are preferably added to the liquid crystal compositions according to the invention are shown below. ; ; ; ; ; ; ; ; ; ; ; ;as well as .
在本發明的一些實施方案中,優選地,摻雜劑占液晶組合物的重量百分比為0-5%;更優選地,摻雜劑占液晶組合物的重量百分比為0-1%。In some embodiments of the present invention, preferably, the dopant accounts for 0-5% by weight of the liquid crystal composition; more preferably, the dopant accounts for 0-1% by weight of the liquid crystal composition.
另外,本發明的液晶組合物所使用的抗氧化劑、光穩定劑等添加劑優選以下物質:
優選地,光穩定劑選自如下所示的光穩定劑:
在本發明的一些實施方案中,優選地,光穩定劑占液晶組合物的重量百分比為0-5%;更優選地,光穩定劑占液晶組合物的重量百分比為0-1%;特別優選地,光穩定劑占液晶組合物的重量百分比為0.01-0.1%。In some embodiments of the present invention, preferably, the light stabilizer accounts for 0-5% by weight of the liquid crystal composition; more preferably, the light stabilizer accounts for 0-1% by weight of the liquid crystal composition; particularly preferred Typically, the light stabilizer accounts for 0.01-0.1% by weight of the liquid crystal composition.
本發明另一方面還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 aspect of the present invention also provides a liquid crystal display device, the liquid crystal display device comprising the liquid crystal composition provided by the present invention.
有益效果: 本發明提供的液晶組合物具有高的清亮點、大的光學各向異性、大的介電各向異性、較低的驅動電壓、較好的低溫互溶性、較大的透過率、以及較大的Kave 值,使得包含本發明的液晶組合物的液晶顯示器件具有小的光散射、以及高的對比度,特別適用於主動矩陣薄膜電晶體(AM-TFT)驅動的液晶顯示元件中。 Beneficial effects: the liquid crystal composition provided by the present invention has high clearing point, large optical anisotropy, large dielectric anisotropy, lower driving voltage, better low temperature mutual solubility, higher transmittance, As well as a larger Kave value, the liquid crystal display device comprising the liquid crystal composition of the present invention has small light scattering and high contrast ratio, and is especially suitable for active matrix thin film transistor (AM-TFT) driven liquid crystal display elements .
以下將結合具體實施方案來說明本發明。需要說明的是,下面的實施例為本發明的示例,僅用來說明本發明,而不用來限制本發明。在不偏離本發明主旨或範圍的情況下,可進行本發明構思內的其他組合和各種改良。The present invention will be described below with reference to specific embodiments. It should be noted that the following embodiments are examples of the present invention, and are only used to illustrate the present invention, but not to limit the present invention. Other combinations and various modifications within the inventive concept can be made without departing from the spirit or scope of the inventions.
在本發明中如無特殊說明,所述的比例均為重量比,所有溫度均為攝氏度溫度。In the present invention, unless otherwise specified, the stated ratios are weight ratios, and all temperatures are degrees Celsius.
為便於表達,以下各實施例中,液晶組合物的基團結構用表1所列的代碼表示:
表1 液晶化合物的基團結構代碼
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 of the following structural formula as an example: If the structural formula is represented by the codes listed in Table 1, it can be expressed as: nCCGF, where n in the code represents the number of C atoms of the left-terminal alkyl group, 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.
以下實施例中測試專案的簡寫代號如下: Cp 清亮點(向列相-各向同性相的轉變溫度,℃) Δn 光學各向異性(589 nm,25℃) Δε 介電各向異性(1 KHz,25℃) t-20℃ 或t-30℃ 低溫儲存時間(h,在-20℃或-30℃) K11 展曲彈性常數 K22 扭曲彈性常數 K33 彎曲彈性常數 Kave 平均彈性常數 Vth 閾值電壓(V,在10%相對透過率時的特徵電壓) T 透過率(DMS 505測試儀,盒厚3.5 μm)The abbreviations of the test items in the following examples are as follows: Cp Clearing point (nematic-isotropic phase transition temperature, °C) Δn Optical anisotropy (589 nm, 25 °C) Δε Dielectric anisotropy (1 KHz) , 25℃) t -20℃ or t -30℃ Low temperature storage time (h, at -20℃ or -30℃) K 11 Flexural elastic constant K 22 Twisting elastic constant K 33 Bending elastic constant Kave Average elastic constant Vth Threshold voltage (V, characteristic voltage at 10% relative transmittance) T transmittance (DMS 505 tester, cell thickness 3.5 μm)
其中,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。Among them, the optical anisotropy was measured using an Abbe refractometer under a sodium lamp (589 nm) light source at 25°C.
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:25℃、1 KHz、測試盒為TN90型,盒厚7 μm。Δε=ε ‖ -ε ⊥ , where ε ‖ is the dielectric constant parallel to the molecular axis, ε ⊥ is the dielectric constant perpendicular to the molecular axis, test conditions: 25℃, 1 KHz, test box is TN90 type, box 7 μm thick.
K11 、K22 、K33 是使用LCR儀和反平行摩擦盒,測試液晶的C-V曲線計算所得,測試條件:7 μm反平行摩擦盒,V=0.1~20 V;Kave =(K11 +K22 +K33 )。K 11 , K 22 , K 33 are calculated by using LCR instrument and anti-parallel rubbing cell to test the CV curve of liquid crystal. Test conditions: 7 μm anti-parallel rubbing cell, V=0.1~20 V; Kave = (K 11 +K 22 +K 33 ).
T透過率的測試條件:利用DMS 505測試儀測試調光器件在清亮點±10℃下的透過率,所述調光器件為盒厚為3.5 μm的IPS型液晶測試盒。Test conditions for T transmittance: use a DMS 505 tester to test the transmittance of the dimming device at ±10°C of clearing point, and the dimming device is an IPS type liquid crystal test cell with a cell thickness of 3.5 μm.
Vth的測試條件:利用DMS505測試儀方波測試3.5 μm的IPS型液晶測試盒。Test conditions for Vth: use a DMS505 tester to test a 3.5 μm IPS type liquid crystal test cell with a square wave.
在以下的實施例中所採用的各成分,均可以通過公知的方法進行合成,或者通過商業途徑獲得。這些合成技術是常規的,所得到各液晶化合物經測試符合電子類化合物標準。The components used in the following examples can be synthesized by known methods or obtained through commercial channels. These synthesis techniques are conventional, and each of the resulting liquid crystal compounds has been tested to meet electronic compound standards.
按照以下實施例規定的各液晶組合物的配比,製備液晶組合物。所述液晶組合物的製備是按照本領域的常規方法進行的,如採取加熱、超聲波、懸浮等方式按照規定比例混合制得。The liquid crystal compositions were prepared according to the proportions of the liquid crystal compositions specified in the following examples. The preparation of the liquid crystal composition is carried out according to conventional methods in the art, such as heating, ultrasonic waves, suspension, etc., by mixing in a prescribed ratio.
製備並研究下列實施例中給出的液晶組合物。下麵顯示了各液晶組合物的組成和其性能參數測試結果。The liquid crystal compositions given in the following examples were prepared and studied. The composition of each liquid crystal composition and the test results of its performance parameters are shown below.
對比例Comparative ratio 11
按表2中所列的各化合物及重量百分數配製成對比例1的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表2 液晶組合物配方及其測試性能
實施例Example 11
按表3中所列的各化合物及重量百分數配製成實施例1的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表3 液晶組合物配方及其測試性能
實施例Example 22
按表4中所列的各化合物及重量百分數配製成實施例2的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表4 液晶組合物配方及其測試性能
實施例Example 33
按表5中所列的各化合物及重量百分數配製成實施例3的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表5 液晶組合物配方及其測試性能
實施例Example 44
按表6中所列的各化合物及重量百分數配製成實施例4的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表6 液晶組合物配方及其測試性能
實施例Example 55
按表7中所列的各化合物及重量百分數配製成實施例5的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表7 液晶組合物配方及其測試性能
實施例Example 66
按表8中所列的各化合物及重量百分數配製成實施例6的液晶組合物,其填充於液晶顯示器兩基板之間進行性能測試,測試資料如下表所示:
表8 液晶組合物配方及其測試性能
為了突出本發明的液晶組合物的有益效果,發明人選取了和本發明的實施例體系相近的對比例。通過以上對比例1和實施例1-6可以看出,本發明提供的液晶組合物具有高的清亮點、大的光學各向異性、大的介電各向異性、較低的驅動電壓、較好的低溫互溶性、較大的透過率、以及較大的Kave 值,使得包含本發明的液晶組合物的液晶顯示器件具有小的光散射、以及高的對比度,特別適用於主動矩陣薄膜電晶體(AM-TFT)驅動的液晶顯示元件中。In order to highlight the beneficial effect of the liquid crystal composition of the present invention, the inventors selected a comparative example similar to the embodiment system of the present invention. It can be seen from the above Comparative Example 1 and Examples 1-6 that the liquid crystal composition provided by the present invention has a high clearing point, a large optical anisotropy, a large dielectric anisotropy, a lower driving voltage, a higher Good low temperature mutual solubility, large transmittance, and large Kave value make the liquid crystal display device comprising the liquid crystal composition of the present invention have small light scattering and high contrast ratio, and is especially suitable for active matrix thin film electronics. Crystal (AM-TFT) driven liquid crystal display elements.
以上實施方式只為說明本發明的技術構思及特點,其目的在於讓熟悉此項技術的人瞭解本發明內容並加以實施,並不能以此限制本發明的保護範圍,凡根據本發明精神實質所做的等效變化或修飾,都應涵蓋在本發明的保護範圍內。The above embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and their purpose is to allow those who are familiar with the technology to understand the content of the present invention and implement it, and cannot limit the scope of protection of the present invention. Equivalent changes or modifications made should be covered within the protection scope of the present invention.
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