TWI796679B - Positive dielectric anisotropy liquid crystal composition, liquid crystal display element or liquid crystal display - Google Patents
Positive dielectric anisotropy liquid crystal composition, liquid crystal display element or liquid crystal display Download PDFInfo
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Abstract
本發明公開了一種正介電各向異性向列相液晶組合物,所述液晶組合物包含一種或多種式Ⅰ所示的化合物、以及一種或多種式Ⅱ所示的化合物。該組合物兼具高的透過率、高的介電各向異性、較高的光學各向異性、高的垂直介電各向異性、高的ε ⊥/Δε比值,較寬的向列相溫度範圍,以及抗紫外抗高溫能力強,無殘像缺陷等特徵。本發明還公開了包含該液晶組合物的液晶顯示元件和液晶顯示器。 ; 。 The invention discloses a positive dielectric anisotropy nematic phase liquid crystal composition, which comprises one or more compounds represented by formula I and one or more compounds represented by formula II. The composition has high transmittance, high dielectric anisotropy, high optical anisotropy, high perpendicular dielectric anisotropy, high ε ⊥ /Δε ratio, wide nematic phase temperature range, as well as strong UV and high temperature resistance, no afterimage defects and other characteristics. The invention also discloses a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition. ; .
Description
本發明涉及液晶材料技術領域。更具體地,涉及一種正介電各向異性液晶組合物、液晶顯示元件或液晶顯示器。The invention relates to the technical field of liquid crystal materials. More specifically, it relates to a liquid crystal composition with positive dielectric anisotropy, a liquid crystal display element or a liquid crystal display.
隨著顯示技術的發展,液晶顯示器(Liquid Crystal Display,LCD)等平面顯示裝置因具有高畫質、省電、機身薄及應用範圍廣等優點,而被廣泛的應用於手機、電視、個人數位助理、數位相機、筆記型電腦、桌上型電腦等各種消費性電子產品,成為顯示裝置中的主流。With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices.
隨著數位資訊技術的不斷提高,消費者對液晶顯示裝置的顯示性能有了更高的追求。在筆記型電腦顯示領域,屏占比越來越大,已經從16:9過渡到了16:10,並向更大的顯示面積發展,最終成為全面屏顯示。而伴隨顯示面積的增大,顯示裝置的解析度也需要不斷提高,才能滿足高畫質的需求。2K解析度,乃至4K解析度將逐漸成為主流的筆記型電腦產品必備顯示需求。然而,高解析度導致顯示面板開口率下降,亮度和對比度都將受其影響,出現明顯的下降。With the continuous improvement of digital information technology, consumers have higher pursuit for the display performance of liquid crystal display devices. In the field of notebook computer display, the screen-to-body ratio is getting larger and larger, and has transitioned from 16:9 to 16:10, and is developing to a larger display area, and finally becomes a full-screen display. With the increase of the display area, the resolution of the display device also needs to be continuously improved in order to meet the requirement of high image quality. 2K resolution, and even 4K resolution will gradually become a must-have display requirement for mainstream notebook computer products. However, the high resolution leads to a decrease in the aperture ratio of the display panel, and both brightness and contrast will be affected by it, resulting in a significant decrease.
因此,開發具有高透過率的液晶組合物,以滿足高解析度要求的筆記型電腦顯示面板是亟待解決的技術問題。Therefore, it is an urgent technical problem to develop a liquid crystal composition with high transmittance to meet the high-resolution display panel of a notebook computer.
基於以上事實,本發明的第一個目的在於提供一種兼具高的透過率、高的介電各向異性、較高的光學各向異性、高的垂直介電各向異性、高的ε ⊥/Δε比值,較寬的向列相溫度範圍,以及抗紫外抗高溫能力強,無殘像缺陷的液晶組合物,將其用於高解析度顯示元器件中時,不會降低顯示面板的開口率、亮度和對比度等。 Based on the above facts, the first object of the present invention is to provide a high transmittance, high dielectric anisotropy, high optical anisotropy, high vertical dielectric anisotropy, high ε ⊥ /Δε ratio, wide temperature range of nematic phase, strong UV resistance and high temperature resistance, liquid crystal composition without afterimage defect, when it is used in high-resolution display components, it will not reduce the opening of the display panel rate, brightness and contrast etc.
本發明的第二個目的在於提供一種液晶顯示元件。The second object of the present invention is to provide a liquid crystal display element.
本發明的第三個目的在於提供一種液晶顯示器。The third object of the present invention is to provide a liquid crystal display.
為達到上述第一個目的,本發明採用下述技術方案: 一種正介電各向異性向列相液晶組合物,所述液晶組合物包含一種或多種式Ⅰ所示的化合物、以及一種或多種式Ⅱ所示的化合物: Ⅰ; Ⅱ; 其中, R 1表示碳原子數為1-10的烷基;Y 1表示CF 3或OCF 3; R 2、R 3各自獨立地表示碳原子數為1-10的烷基、氟取代的碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、氟取代的碳原子數為1-10的烷氧基、碳原子數為2-10的鏈烯基、氟取代的碳原子數為2-10的鏈烯基、碳原子數為3-8的鏈烯氧基或氟取代的碳原子數為3-8的鏈烯氧基,並且R 2所示基團中任意一個或多個-CH 2-任選被亞環戊基、亞環丁基或亞環丙基替代;Z表示-O-或-S-。 In order to achieve the above-mentioned first object, the present invention adopts the following technical scheme: A kind of positive dielectric anisotropy nematic phase liquid crystal composition, said liquid crystal composition comprises one or more compounds shown in formula I, and one or more Compound shown in formula II: I; II; wherein, R 1 represents an alkyl group with 1-10 carbon atoms; Y 1 represents CF 3 or OCF 3 ; R 2 and R 3 independently represent an alkyl group with 1-10 carbon atoms, fluorine-substituted Alkyl group with 1-10 carbon atoms, alkoxy group with 1-10 carbon atoms, alkoxy group with 1-10 carbon atoms substituted by fluorine, alkenyl group with 2-10 carbon atoms, Alkenyl group with 2-10 carbon atoms substituted by fluorine, alkenyloxy group with 3-8 carbon atoms or alkenyloxy group with 3-8 carbon atoms substituted by fluorine, and the group represented by R Any one or more -CH 2 - in the group is optionally replaced by cyclopentylene, cyclobutylene or cyclopropylene; Z represents -O- or -S-.
進一步地,所述式Ⅰ所示的化合物選自式Ⅰ1至Ⅰ6所示的化合物組成的組: Ⅰ1; Ⅰ2; Ⅰ3; Ⅰ4; Ⅰ5; Ⅰ6。 Further, the compound represented by the formula I is selected from the group consisting of compounds represented by the formulas I1 to I6: I1; I2; I3; I4; I5; I6.
進一步地,所述式Ⅱ所示的化合物選自式Ⅱ1至Ⅱ6所示的化合物組成的組: Ⅱ1; Ⅱ2; Ⅱ3; Ⅱ4; Ⅱ5; Ⅱ6; 其中,R 21、R 31各自獨立地表示碳原子數為1~6的烷基。 Further, the compound represented by formula II is selected from the group consisting of compounds represented by formula II1 to II6: II1; II2; II3; II4; II5; II6; wherein, R 21 and R 31 each independently represent an alkyl group having 1 to 6 carbon atoms.
進一步地,所述液晶組合物還包含一種或多種式Ⅲ所示的化合物: Ⅲ; 其中,R 4、R 5各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基或碳原子數為3~8的烯氧基; 、 各自獨立的表示 或 。 Further, the liquid crystal composition also includes one or more compounds represented by formula III: Ⅲ; wherein, R 4 and R 5 each independently represent an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, or an alkenyl group with 1 to 10 carbon atoms 3-8 alkenyloxy groups; , independent expression or .
進一步地,所述液晶組合物還包含一種或多種式Ⅳ所示的化合物: Ⅳ; 其中,R 6表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基或碳原子數為3~8的烯氧基,且R 6所示基團中任意一個或多個-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基替代; 、 各自獨立地表示 、 、 、 或 ; X 1、X 2各自獨立地表示H或F;Y 2表示-F、-CF 3或-OCF 3;m表示1或2, 當m表示2時, 可以相同或不同。 Further, the liquid crystal composition also includes one or more compounds represented by formula IV: Ⅳ; wherein, R 6 represents an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms or an alkenyl group with 3 to 8 carbon atoms Oxygen, and any one or more -CH 2 - in the group represented by R 6 is replaced by an optional cyclopentylene, cyclobutylene or cyclopropylene; , express independently , , , or ; X 1 and X 2 independently represent H or F; Y 2 represents -F, -CF 3 or -OCF 3 ; m represents 1 or 2, when m represents 2, Can be the same or different.
進一步地,所述液晶組合物還包含一種或多種式Ⅴ所示的化合物: Ⅴ; 其中,R 7、R 8各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基、氟取代的碳原子數為2~10的烯基、碳原子數為3~8的烯氧基或氟取代的碳原子數為3~8的烯氧基,且R 7、R 8中任意一個或多個互不相鄰的-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基取代; Z 1表示表示單鍵或-CH 2O-; 、 各自獨立地表示 、 或 ; q表示1或2;n表示0或1; 當q表示2時, 可以相同或不同。 Further, the liquid crystal composition also includes one or more compounds represented by formula V: V; wherein, R 7 and R 8 each independently represent an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, or a fluorine-substituted Alkenyl with 2 to 10 carbon atoms, alkenyloxy with 3 to 8 carbon atoms, or alkenyloxy with 3 to 8 carbon atoms substituted by fluorine, and any one or more of R 7 and R 8 -CH 2 - that are not adjacent to each other are optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene; Z 1 represents a single bond or -CH 2 O-; , express independently , or ; q means 1 or 2; n means 0 or 1; when q means 2, Can be the same or different.
進一步地,所述式Ⅴ所示的化合物選自式Ⅴ1至Ⅴ8所示的化合物組成的組: Ⅴ1; Ⅴ2; Ⅴ3; Ⅴ4; Ⅴ5; Ⅴ6; Ⅴ7; Ⅴ8; 其中,R 7、R 8各自獨立地表示碳原子數為1~5的烷基、碳原子數為1~5的烷氧基,且R 7中任意一個或多個互不相鄰的-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基取代。 Further, the compound represented by the formula V is selected from the group consisting of compounds represented by the formulas V1 to V8: V1; V2; V3; V4; V5; V6; V7; V8; wherein, R 7 and R 8 each independently represent an alkyl group with 1 to 5 carbon atoms, an alkoxy group with 1 to 5 carbon atoms, and any one or more of R 7 that are not adjacent to each other -CH2- is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene.
進一步地,所述液晶組合物還包含一種或多種式Ⅵ所示的化合物: Ⅵ; 其中,R 9表示碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、碳原子數為2-10的烯基、碳原子數為3-8的鏈烯氧基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代; 、 各自獨立地表示 、 、 、 、 或 ; p表示1或2;當p表示2時, 可以相同或不同;X 3、X 4各自獨立地表示H或F。 Further, the liquid crystal composition also includes one or more compounds represented by formula VI: Ⅵ; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, an alkoxy group with 1-10 carbon atoms, an alkenyl group with 2-10 carbon atoms, a chain with 3-8 carbon atoms Alkenyloxy, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene; , express independently , , , , or ; p means 1 or 2; when p means 2, may be the same or different; X 3 and X 4 each independently represent H or F.
進一步地,所述液晶組合物還包含一種或多種選自式Ⅶ1至式Ⅶ5所示的化合物: Ⅶ1; Ⅶ2; Ⅶ3; Ⅶ4; Ⅶ5; 其中,R 10表示碳原子數為1-10的烷基,且R 10所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代;R 11表示碳原子數為1-10的烷氧基。 Further, the liquid crystal composition further comprises one or more compounds selected from formula VII1 to formula VII5: VII1; VII2; VII 3; VII4; VII5; Wherein, R 10 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 10 is optionally replaced by cyclopentylene, cyclobutylene or cyclopropylene; R 11 represents an alkoxy group with 1-10 carbon atoms.
本發明還提供一種液晶顯示元件,其包含本發明的液晶組合物,所述液晶顯示元件為有源矩陣定址顯示元件或者無源矩陣定址顯示元件。The present invention also provides a liquid crystal display element, which contains the liquid crystal composition of the present invention, and the liquid crystal display element is an active matrix addressable display element or a passive matrix addressable display element.
本發明還提供一種液晶顯示器,其包含本發明的液晶組合物,所述液晶顯示器為有源矩陣定址顯示器或者無源矩陣定址顯示器。The present invention also provides a liquid crystal display comprising the liquid crystal composition of the present invention, and the liquid crystal display is an active matrix addressing display or a passive matrix addressing display.
本發明的有益效果如下:本發明提供的液晶組合物具有高的透過率、較高的光學各向異性、高的介電各向異性、高的垂直介電常數、高的ε⊥/Δε比值,較寬的向列相溫度範圍,以及抗紫外抗高溫能力強,無殘像缺陷,尤其適用於高解析度(如2K或者更高解析度)的液晶顯示元器件中,不會因為高解析度導致顯示面板開口率下降,進而導致亮度和對比度明顯的下降的問題出現。 本發明的液晶顯示元件、液晶顯示器通過包含前述的本發明的液晶組合物,具有高的對比度、面板輕薄、能耗低、較寬的使用溫度範圍,以及良好的信賴性。 The beneficial effects of the present invention are as follows: the liquid crystal composition provided by the present invention has high transmittance, high optical anisotropy, high dielectric anisotropy, high vertical permittivity, and high ε⊥/Δε ratio , wide temperature range of nematic phase, strong ability of anti-ultraviolet and high temperature resistance, no afterimage defects, especially suitable for high-resolution (such as 2K or higher resolution) liquid crystal display components, and will not be affected by high-resolution The lower the aperture ratio of the display panel, the lower the brightness and the contrast ratio. The liquid crystal display element and the liquid crystal display of the present invention contain the aforementioned liquid crystal composition of the present invention, and have high contrast, light and thin panel, low energy consumption, wide service temperature range, and good reliability.
為了更清楚地說明本發明,下面結合優選實施例對本發明做進一步的說明。本領域技術人員應當理解,下面所具體描述的內容是說明性的而非限制性的,不應以此限制本發明的保護範圍。In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[[ 液晶組合物liquid crystal composition ]]
一種正介電各向異性向列相液晶組合物,所述液晶組合物包含一種或多種式Ⅰ所示的化合物、以及一種或多種式Ⅱ所示的化合物: Ⅰ; Ⅱ; 其中,R 1表示碳原子數為1-10的烷基;Y 1表示CF 3或OCF 3;R 2、R 3各自獨立地表示碳原子數為1-10的烷基、氟取代的碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、氟取代的碳原子數為1-10的烷氧基、碳原子數為2-10的鏈烯基、氟取代的碳原子數為2-10的鏈烯基、碳原子數為3-8的烯氧基或氟取代的碳原子數為3-8的烯氧基,並且R 2所示基團中任意一個或多個-CH 2-任選被亞環戊基、亞環丁基或亞環丙基替代;Z表示-O-或-S-。 A positive dielectric anisotropy nematic liquid crystal composition comprising one or more compounds represented by formula I and one or more compounds represented by formula II: I; II; wherein, R 1 represents an alkyl group with 1-10 carbon atoms; Y 1 represents CF 3 or OCF 3 ; R 2 and R 3 independently represent an alkyl group with 1-10 carbon atoms, fluorine-substituted Alkyl group with 1-10 carbon atoms, alkoxy group with 1-10 carbon atoms, alkoxy group with 1-10 carbon atoms substituted by fluorine, alkenyl group with 2-10 carbon atoms, Alkenyl group with 2-10 carbon atoms substituted by fluorine, alkenyloxy group with 3-8 carbon atoms or alkenyloxy group with 3-8 carbon atoms substituted by fluorine, and in the group represented by R2 Any one or more -CH 2 - is optionally replaced by cyclopentylene, cyclobutylene or cyclopropylene; Z represents -O- or -S-.
在一些優選示例中,前述式Ⅰ所示化合物選自式Ⅰ1至Ⅰ6所示的化合物組成的組: Ⅰ1; Ⅰ2; Ⅰ3; Ⅰ4; Ⅰ5; Ⅰ6。 In some preferred examples, the compound represented by the aforementioned formula I is selected from the group consisting of compounds represented by formulas I1 to I6: I1; I2; I3; I4; I5; I6.
優選地,前述式Ⅱ所示的化合物選自式Ⅱ1至Ⅱ6所示的化合物組成的組: Ⅱ1; Ⅱ2; Ⅱ3; Ⅱ4; Ⅱ5; Ⅱ6; 其中,R 21、R 31各自獨立地表示碳原子數為1~6的烷基。 Preferably, the compound represented by the aforementioned formula II is selected from the group consisting of compounds represented by formula II1 to II6: II1; II2; II3; II4; II5; II6; wherein, R 21 and R 31 each independently represent an alkyl group having 1 to 6 carbon atoms.
本發明所述的液晶組合物,優選地,還包含一種或多種的式Ⅲ所示化合物: Ⅲ; 其中,R 4、R 5各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基或碳原子數為3~8的烯氧基; 、 各自獨立的表示 或 。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula III: Ⅲ; wherein, R 4 and R 5 each independently represent an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, or an alkenyl group with 1 to 10 carbon atoms 3-8 alkenyloxy groups; , independent expression or .
式Ⅲ所示的化合物具有旋轉粘度低、與其他化合物互溶性好的特點,有利於提高液晶組合物的回應速度。The compound represented by formula III has the characteristics of low rotational viscosity and good miscibility with other compounds, which is beneficial to improve the response speed of the liquid crystal composition.
優選地,前述式Ⅲ所示的化合物選自式Ⅲ1至Ⅲ13所示的化合物組成的組: Ⅲ1; Ⅲ2; Ⅲ3; Ⅲ4; Ⅲ5; Ⅲ6; Ⅲ7; Ⅲ8。 Preferably, the compound represented by the aforementioned formula III is selected from the group consisting of compounds represented by formulas III1 to III13: III1; III2; III3; III4; III5; III6; III 7; III8.
本發明所述的液晶組合物,優選地,還包含一種或多種式Ⅳ所示的化合物: Ⅳ; 其中,R 6表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基或碳原子數為3~8的烯氧基,且R 6所示基團中任意一個或多個-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基替代; 、 各自獨立地表示 、 、 、 或 ; X 1、X 2各自獨立地表示H或F;Y 2表示-F、-CF 3或-OCF 3;m表示1或2, 當m表示2時, 可以相同或不同。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula IV: Ⅳ; wherein, R 6 represents an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms or an alkenyl group with 3 to 8 carbon atoms Oxygen, and any one or more -CH 2 - in the group represented by R 6 is replaced by an optional cyclopentylene, cyclobutylene or cyclopropylene; , express independently , , , or ; X 1 and X 2 independently represent H or F; Y 2 represents -F, -CF 3 or -OCF 3 ; m represents 1 or 2, when m represents 2, Can be the same or different.
式Ⅳ所示化合物具有正介電各向異性,能夠降低液晶組合物的閾值電壓,有利於降低電能消耗。The compound represented by formula IV has positive dielectric anisotropy, can reduce the threshold voltage of the liquid crystal composition, and is beneficial to reduce power consumption.
優選地,前述式Ⅳ所示的化合物選自式Ⅳ1至Ⅳ12所示的化合物組成的組: Ⅳ1; Ⅳ2; Ⅳ3; Ⅳ4; Ⅳ5; Ⅳ6; Ⅳ7; Ⅳ8; Ⅳ9; Ⅳ10; Ⅳ11; Ⅳ12; 其中,R 6表示碳原子數為1~10的烷基、且R 6所示基團中任意一個或多個-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基替代。 Preferably, the compound represented by the aforementioned formula IV is selected from the group consisting of compounds represented by formula IV1 to IV12: IV1; IV2; IV 3; IV 4; IV5; IV 6; IV 7; IV 8; IV9; IV 10; IV 11; IV12; wherein, R 6 represents an alkyl group with 1 to 10 carbon atoms, and any one or more -CH 2 - in the groups represented by R 6 is optionally cyclopentylene, cyclobutylene or Cyclopropyl substitution.
進一步優選地,前述式Ⅳ所示的化合物選自式Ⅳ7-1至Ⅳ12-2所示的化合物組成的組: Ⅳ7-1; Ⅳ7-2; Ⅳ7-3; Ⅳ8-1; Ⅳ8-2; Ⅳ8-3; Ⅳ9-1; Ⅳ9-2; Ⅳ9-3; Ⅳ10-1; Ⅳ11-1; Ⅳ12-1; Ⅳ12-2。 Further preferably, the compound represented by the aforementioned formula IV is selected from the group consisting of compounds represented by formula IV7-1 to IV12-2: IV 7-1; IV 7-2; IV 7-3; IV8-1; IV8-2; IV8-3; IV9-1; IV9-2; IV 9-3; IV10-1; IV11-1; IV12-1; IV 12-2.
式Ⅳ7-1至Ⅳ12-2所示化合物不僅具有較高的正介電各向異性,同時還具有較高的光學各向異性和清亮點,有利於提高液晶組合物的抗高溫能力。The compounds represented by formulas IV7-1 to IV12-2 not only have high positive dielectric anisotropy, but also have high optical anisotropy and clearing point, which is beneficial to improve the high temperature resistance of the liquid crystal composition.
本發明所述的液晶組合物,優選地,前述液晶組合物還包含一種或多種式Ⅴ所示化合物: Ⅴ; 其中,R 7、R 8各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基、氟取代的碳原子數為2~10的烯基、碳原子數為3~8的烯氧基或氟取代的碳原子數為3~8的烯氧基,且R 7、R 8中任意一個或多個互不相鄰的-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基取代; Z 1表示表示單鍵或-CH 2O-; 、 各自獨立地表示 、 或 ; q表示1或2;n表示0或1; 當q表示2時, 可以相同或不同。 In the liquid crystal composition of the present invention, preferably, the aforementioned liquid crystal composition further comprises one or more compounds represented by formula V: V; wherein, R 7 and R 8 each independently represent an alkyl group with 1 to 10 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, or a fluorine-substituted Alkenyl with 2 to 10 carbon atoms, alkenyloxy with 3 to 8 carbon atoms, or alkenyloxy with 3 to 8 carbon atoms substituted by fluorine, and any one or more of R 7 and R 8 -CH 2 - that are not adjacent to each other are optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene; Z 1 represents a single bond or -CH 2 O-; , express independently , or ; q means 1 or 2; n means 0 or 1; when q means 2, Can be the same or different.
優選地,前述式Ⅴ所示化合物選自式Ⅴ1至Ⅴ8所示化合物組成的組: Ⅴ1; Ⅴ2; Ⅴ3; Ⅴ4; Ⅴ5; Ⅴ6; Ⅴ7; Ⅴ8; 其中,R 7、R 8各自獨立地表示碳原子數為1~5的烷基、碳原子數為1~5的烷氧基,且R 7中任意一個或多個互不相鄰的-CH 2-被任選的亞環戊基、亞環丁基或亞環丙基取代。 Preferably, the compound represented by the aforementioned formula V is selected from the group consisting of compounds represented by the formulas V1 to V8: V1; V2; V3; V4; V5; V6; V7; V8; wherein, R 7 and R 8 each independently represent an alkyl group with 1 to 5 carbon atoms, an alkoxy group with 1 to 5 carbon atoms, and any one or more of R 7 that are not adjacent to each other -CH2- is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene.
式Ⅴ所示化合具有較高的垂直介電常數,有利於提高液晶組合物ε⊥/Δε比值。The compound shown in formula V has a relatively high vertical dielectric constant, which is beneficial to increase the ratio of ε⊥/Δε in the liquid crystal composition.
進一步優選地,前述式Ⅴ所示的化合物選自式Ⅴ2-1至Ⅴ6-3所示的化合物組成的組: Ⅴ2-1; Ⅴ2-2; Ⅴ2-3; Ⅴ2-4; Ⅴ4-1; Ⅴ4-2; Ⅴ4-3; Ⅴ4-4; Ⅴ4-5; Ⅴ4-6; Ⅴ4-7; Ⅴ4-8; Ⅴ4-9; Ⅴ4-10; Ⅴ5-1; Ⅴ5-2; Ⅴ5-3; Ⅴ5-4; Ⅴ5-5; Ⅴ6-1; Ⅴ6-2; Ⅴ6-3。 Further preferably, the compound represented by the aforementioned formula V is selected from the group consisting of compounds represented by the formulas V2-1 to V6-3: V2-1; V2-2; V2-3; V2-4; V4-1; V4-2; V4-3; V4-4; V4-5; V4-6; V4-7; V4-8; V4-9; V4-10; V5-1; V5-2; V5-3; V5-4; V5-5; V6-1; V6-2; V6-3.
式Ⅴ2-1至Ⅴ6-3所示化合物不僅具有較高的垂直介電常數,還具有較高的光學各向異性。The compounds represented by the formulas V2-1 to V6-3 not only have a high vertical dielectric constant, but also have a high optical anisotropy.
本發明的液晶組合物,優選地,還包含一種或多種式Ⅵ所示的化合物: Ⅵ; 其中,R 9表示碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、碳原子數為2-10的烯基、碳原子數為3-8的烯氧基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代; 、 各自獨立地表示 、 、 、 、 或 ; p表示1或2;當p表示2時, 可以相同或不同;X 3、X 4各自獨立地表示H或F;。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula VI: Ⅵ; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, an alkoxy group with 1-10 carbon atoms, an alkenyl group with 2-10 carbon atoms, and an alkenyl group with 3-8 carbon atoms Oxygen, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylene; , express independently , , , , or ; p means 1 or 2; when p means 2, may be the same or different; X 3 and X 4 each independently represent H or F;
優選地,前述式Ⅵ所示的化合物選自式Ⅵ1至Ⅵ5所示的化合物組成的組: Ⅵ1; Ⅵ2; Ⅵ3; Ⅵ4; Ⅵ5; 其中,R 9表示碳原子數為1-10的烷基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代。 Preferably, the compound represented by the aforementioned formula VI is selected from the group consisting of compounds represented by formula VI1 to VI5: VI1; VI2; VI 3; VI 4; VI5; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally replaced by cyclopentylene, cyclobutylene Or cyclopropylene substitution.
前述式Ⅵ所示的化合物,進一步優選地,式Ⅵ3至Ⅵ5所示化合物具有更高的抗污染能力,有利於降低生產成本。The compound represented by the aforementioned formula VI, more preferably, the compounds represented by the formula VI3 to VI5 have higher anti-pollution ability, which is beneficial to reduce the production cost.
本發明的液晶組合物,優選地,還包含一種或多種選自式Ⅶ1至式Ⅶ5所示化合物: Ⅶ1; Ⅶ2; Ⅶ3; Ⅶ4; Ⅶ5; 其中,R 10表示碳原子數為1-10的烷基,且R 10所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代;R 11表示碳原子數為1-10的烷氧基。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds selected from formula VII1 to formula VII5: VII1; VII2; VII 3; VII4; VII5; Wherein, R 10 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 10 is optionally replaced by cyclopentylene, cyclobutylene or cyclopropylene; R 11 represents an alkoxy group with 1-10 carbon atoms.
式Ⅶ1至式Ⅶ5所示的化合物,能夠在不改變液晶組合物介電各向異性的基礎上,提高垂直介電常數。The compounds represented by formula VII1 to formula VII5 can increase the vertical dielectric constant without changing the dielectric anisotropy of the liquid crystal composition.
前述碳原子數為1-10的烷基,可以列舉出,例如,甲基、乙基、正丙基、異丙基、正丁基、異丁基、叔丁基、正戊基、異戊基、己基、庚基、辛基、壬基、癸基等。The aforementioned alkyl group having 1 to 10 carbon atoms includes, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl Base, hexyl, heptyl, octyl, nonyl, decyl, etc.
前述的碳原子數為1-10的烷氧基,可以列舉出,例如,甲氧基、乙氧基、正丙氧基、異丙氧基、正丁氧基、異丁氧基、戊氧基、己氧基、庚氧基、辛氧基、壬氧基、癸氧基等。The aforementioned alkoxy groups having 1 to 10 carbon atoms include, for example, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, pentyloxy Base, hexyloxy, heptyloxy, octyloxy, nonyloxy, decyloxy, etc.
前述碳原子數為2-10的烯基,可以列舉出,例如,乙烯基、1-丙烯基、1-丁烯基、2-丁烯基、3-丁烯基、1-戊烯基、2-戊烯基、3-戊烯基、4-戊烯基、1-己烯基、2-己烯基、3-己烯基等。The aforementioned alkenyl groups having 2 to 10 carbon atoms include, for example, vinyl, 1-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl and the like.
前述的氟取代的碳原子數為1-10的烷基、氟取代的碳原子數為1-10的烷氧基、氟取代的碳原子數為2-10的鏈烯基、氟取代的碳原子數為3-8的鏈烯氧基中的“氟取代”可以是單氟取代,或者、二氟取代、三氟取代等多氟取代,也可以是全氟取代,對氟的取代數沒有特別的限定。例如,作為氟取代的碳原子數為1-10的烷基,可以列舉出氟代甲基、二氟甲基、三氟甲基、1-氟代乙基、2-氟代乙基、1,2-二氟乙基、1,1-二氟乙基、1,1,2-三氟乙基、1,1,1,2,2-五氟取代乙基等,但不限於此。The aforementioned fluorine-substituted alkyl group with 1-10 carbon atoms, fluorine-substituted alkoxy group with 1-10 carbon atoms, fluorine-substituted alkenyl group with 2-10 carbon atoms, fluorine-substituted carbon The "fluorine substitution" in the alkenyloxy group with 3-8 atoms can be monofluorine substitution, or polyfluorine substitution such as difluoro substitution, trifluoro substitution, etc., or perfluoro substitution, and there is no substitution number for fluorine. special restrictions. For example, the alkyl group having 1 to 10 carbon atoms substituted by fluorine includes fluoromethyl, difluoromethyl, trifluoromethyl, 1-fluoroethyl, 2-fluoroethyl, 1 , 2-difluoroethyl, 1,1-difluoroethyl, 1,1,2-trifluoroethyl, 1,1,1,2,2-pentafluoroethyl, etc., but not limited thereto.
前述的碳原子數為1~10的烷基中一個或多個不相鄰的-CH 2-被亞環丙基、亞環丁基或亞環戊基取代後得到的基團,可以列舉出,例如環丙基、環丁基、環戊基、甲基亞環丙基、乙基亞環丙基、丙基亞環丙基、異丙基亞環丙基、正丁基亞環丙基、異丁基亞環丙基、叔丁基亞環丙基、甲基亞環丁基、乙基亞環丁基、丙基亞環丁基、異丙基亞環丁基、正丁基亞環丁基、異丁基亞環丁基、叔丁基亞環丁基、甲基亞環戊基、乙基亞環戊基、丙基亞環戊基、異丙基亞環戊基、正丁基亞環戊基、異丁基亞環戊基等。 A group obtained by substituting one or more non-adjacent -CH 2 - in the aforementioned alkyl group with 1 to 10 carbon atoms by cyclopropylene, cyclobutylene or cyclopentylene, including , such as cyclopropyl, cyclobutyl, cyclopentyl, methylcyclopropylene, ethylcyclopropylene, propylcyclopropylene, isopropylcyclopropylene, n-butylcyclopropylene , isobutylcyclopropylene, tert-butylcyclopropylene, methylcyclobutylene, ethylcyclobutylene, propylcyclobutylene, isopropylcyclobutylene, n-butylcyclobutylene Cyclobutyl, isobutylcyclobutylene, t-butylcyclobutylene, methylcyclopentylene, ethylcyclopentylene, propylcyclopentylene, isopropylcyclopentylene, n- Butylcyclopentylene, isobutylcyclopentylene, etc.
本發明液晶組合物介電各向異性Δε為10.0~10.5,光學各向異性Δn為0.124~0.129,優選為0.126~0.128,清亮點Cp為80~90℃,優選為80~85℃。The dielectric anisotropy Δε of the liquid crystal composition of the present invention is 10.0-10.5, the optical anisotropy Δn is 0.124-0.129, preferably 0.126-0.128, and the clearing point Cp is 80-90°C, preferably 80-85°C.
本發明提供的液晶組合物中,除添加劑之外的其他化合物的總質量百分比含量記為100%。In the liquid crystal composition provided by the present invention, the total mass percentage content of other compounds except additives is recorded as 100%.
優選地,所述液晶組合物按照質量百分數包含:Preferably, the liquid crystal composition comprises according to mass percentage:
優選地,式Ⅰ所示化合物的質量百分比含量為7-16%,進一步優選地式Ⅰ所示化合物的質量百分比含量為10-15%。Preferably, the mass percentage content of the compound represented by formula I is 7-16%, and more preferably, the mass percentage content of the compound represented by formula I is 10-15%.
優選地,式Ⅱ所示化合物的質量百分比含量優選為5-10%。Preferably, the mass percentage content of the compound represented by formula II is preferably 5-10%.
優選地,式Ⅰ、式Ⅱ所示化合物的質量百分比含量之和小於25%。Preferably, the sum of the mass percentages of the compounds represented by formula I and formula II is less than 25%.
優選地,式Ⅲ所示化合物的質量百分比含量為40-42%。Preferably, the mass percent content of the compound represented by formula III is 40-42%.
優選地,式Ⅳ所示化合物的質量百分比含量為5-16%。Preferably, the mass percent content of the compound represented by formula IV is 5-16%.
優選地,式Ⅴ所示化合物的質量百分比含量為4-7%。Preferably, the mass percent content of the compound represented by formula V is 4-7%.
優選地,式Ⅵ所示化合物的質量百分比含量為25-34%,進一步優選地式Ⅵ所示化合物的質量百分比含量為31-34%。Preferably, the mass percent content of the compound represented by formula VI is 25-34%, and more preferably, the mass percentage content of the compound represented by formula VI is 31-34%.
優選地,式Ⅶ所示化合物的質量百分比含量為0-4%。Preferably, the mass percent content of the compound represented by formula VII is 0-4%.
本發明的液晶化合物中還可以加入各種功能的摻雜劑,摻雜劑含量優選0.01-1%之間,這些摻雜劑可以列舉出,例如抗氧化劑、紫外線吸收劑、手性劑。Dopants with various functions can also be added to the liquid crystal compound of the present invention, and the dopant content is preferably between 0.01-1%. These dopants can be listed, such as antioxidants, ultraviolet absorbers, and chiral agents.
抗氧化劑可以列舉出: ; ; ; ; t表示1~10的整數。 Antioxidants can be listed as: ; ; ; ; t represents an integer from 1 to 10.
光穩定劑可以列舉: ; 。 Light stabilizers can be exemplified by: ; .
手性劑(左旋或右旋)優選可以列舉出,例如: ; ; ; ; 。 Chiral agents (left-handed or right-handed) can preferably be listed, for example: ; ; ; ; .
[[ 液晶顯示元件或液晶顯示器liquid crystal display element or liquid crystal display ]]
為達到上述第二個目的,本發明提供如下技術方案: 一種液晶顯示元件,其包含如上所述的液晶組合物,所述液晶顯示元件為有源矩陣顯示元件或無源矩陣顯示元件。 In order to achieve the above-mentioned second purpose, the present invention provides the following technical solutions: A liquid crystal display element, which comprises the above-mentioned liquid crystal composition, said liquid crystal display element is an active matrix display element or a passive matrix display element.
為達到上述第三個目的,本發明提供如下技術方案: 一種液晶顯示器,其包含如上第一個目的所述的液晶組合物,所述液晶顯示器為有源矩陣顯示器或無源矩陣顯示器。 In order to achieve the above-mentioned third purpose, the present invention provides the following technical solutions: A liquid crystal display comprising the liquid crystal composition as described in the first objective above, the liquid crystal display being an active matrix display or a passive matrix display.
前述有源矩陣顯示元件或顯示器,具體可以列舉出,例如TN-TFT或IPS-TFT或FFS-TFT液晶顯示元件或其他TFT顯示器。The aforementioned active matrix display elements or displays specifically include, for example, TN-TFT or IPS-TFT or FFS-TFT liquid crystal display elements or other TFT displays.
本發明的液晶顯示元件、液晶顯示器通過包含前述的本發明的液晶組合物,具有高的對比度、面板輕薄、能耗低、較寬的使用溫度範圍,以及良好的信賴性。The liquid crystal display element and the liquid crystal display of the present invention contain the aforementioned liquid crystal composition of the present invention, and have high contrast, light and thin panel, low energy consumption, wide service temperature range, and good reliability.
實施例Example
為了更清楚地說明本發明,下面結合實施例對本發明做進一步的說明。本領域技術人員應當理解,下面所具體描述的內容是說明性的而非限制性的,不應以此限制本發明的保護範圍。In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with the examples. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
本說明書中,如無特殊說明,百分比均是指質量百分比,溫度為攝氏度(℃),其他符號的具體意義及測試條件如下: Cp表示液晶清亮點(℃),DSC定量法測試; Δn表示光學各向異性,n o為尋常光的折射率,n e為非尋常光的折射率,測試條件為25±2℃,589nm,阿貝折射儀測試; Δε表示介電各向異性,Δε=ε ∥-ε ⊥,其中,ε ∥為平行於分子軸的介電常數,ε ⊥為垂直於分子軸的介電常數,測試條件為25±0.5℃,20微米垂直盒,INSTEC:ALCT-IR1測試; γ 1表示旋轉粘度(mPa·s),測試條件為25±0.5℃,20微米垂直盒,INSTEC:ALCT-IR1測試; K 11為展曲彈性常數,K 33為彎曲彈性常數,測試條件為:25℃、INSTEC:ALCT-IR1、20微米垂直盒; Tr(%)表示透過率,Tr(%)=100%* 亮態(Vop)亮度/光源亮度,測試設備DMS501,測試條件為25±0.5℃,測試盒為FFS測試盒,電極間距5微米,電極寬度均為3微米,摩擦方向與電極夾角為7°; VHR表示電壓保持率(%),測試條件為60±2℃、電壓為±5V、脈衝寬度為10ms、電壓保持時間166.7ms。測試設備為TOYO Model6254液晶性能綜合測試儀; 殘像:液晶顯示器件的殘像,是在顯示區域內使規定的固定圖案顯示1000小時後,通過目測對進行全畫面均勻顯示時的固有圖案的殘留水準進行以下的4等級評價: ◎無殘留 ○有極少量殘留,為可以容許的水準 △有殘留,為不能允許的水準 ×有殘留,相當差。 In this manual, unless otherwise specified, the percentages refer to mass percentages, and the temperature is in degrees Celsius (°C). The specific meanings and test conditions of other symbols are as follows: Cp means liquid crystal clearing point (°C), tested by DSC quantitative method; Δn means optical Anisotropy, n o is the refractive index of ordinary light, ne is the refractive index of extraordinary light, the test condition is 25±2°C, 589nm, Abbe refractometer test; Δε means dielectric anisotropy, 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 condition is 25±0.5℃, 20 micron vertical cell, INSTEC: ALCT-IR1 test ; γ 1 is the rotational viscosity (mPa s), the test condition is 25±0.5℃, 20 micron vertical box, INSTEC: ALCT-IR1 test; K 11 is the flexural constant, K 33 is the flexural constant, the test condition is : 25°C, INSTEC: ALCT-IR1, 20 micron vertical cell; Tr (%) means transmittance, Tr (%) = 100%* bright state (Vop) brightness / light source brightness, test equipment DMS501, the test condition is 25± 0.5°C, the test box is an FFS test box, the electrode spacing is 5 microns, the electrode width is 3 microns, the angle between the friction direction and the electrode is 7°; VHR indicates the voltage retention rate (%), the test condition is 60±2 °C, the voltage is ±5V, pulse width 10ms, voltage hold time 166.7ms. The test equipment is TOYO Model6254 liquid crystal performance comprehensive tester; Afterimage: The afterimage of the liquid crystal display device is the residue of the inherent pattern when the full screen is uniformly displayed by visual inspection after the specified fixed pattern is displayed in the display area for 1000 hours The level was evaluated in the following 4 grades: ◎No residue ○There is a very small amount of residue, which is an acceptable level △There is a residue, which is an unacceptable level ×There is a residue, which is quite poor.
液晶組合物的製備方法如下:將各液晶單體按照一定配比稱量後放入不銹鋼燒杯中,將裝有各液晶單體的不銹鋼燒杯置於磁力攪拌儀器上加熱融化,待不銹鋼燒杯中的液晶單體大部份融化後,往不銹鋼燒杯中加入磁力轉子,將混合物攪拌均勻,冷卻到室溫後即得液晶組合物。The preparation method of the liquid crystal composition is as follows: put each liquid crystal monomer into a stainless steel beaker after weighing according to a certain proportion, place the stainless steel beaker containing each liquid crystal monomer on a magnetic stirring apparatus to heat and melt, and wait for the liquid crystal monomer in the stainless steel beaker to melt. After most of the liquid crystal monomers are melted, a magnetic rotor is added to the stainless steel beaker, the mixture is stirred evenly, and the liquid crystal composition is obtained after cooling to room temperature.
本發明實施例液晶單體結構用代碼表示,液晶環結構、端基、連接基團的代碼表示方法見下表1、表2。
表1 環結構的對應代碼
舉例: ,其代碼為CPWP-3-OT; ,其代碼為CPWP-3-T; ,其代碼為Sb-CpO-O4; ,其代碼為Sc-CpO-O4; ,其代碼為CC-3-V1; ,其代碼為PP-1-2V1; ,其代碼為CPY-2-O2; ,其代碼為CCY-3-O2; ,其代碼為PGUQU-3-F; ,其代碼為PGUQY-3-F。 Example: , whose code is CPWP-3-OT; , whose code is CPWP-3-T; , whose code is Sb-CpO-O4; , whose code is Sc-CpO-O4; , whose code is CC-3-V1; , whose code is PP-1-2V1; , whose code is CPY-2-O2; , whose code is CCY-3-O2; , whose code is PGUQU-3-F; , whose code is PGUQY-3-F.
實施例Example 11
液晶組合物的配方及相應的性能如下表3所示。
表3 實施例1液晶組合物的配方及相應的性能
實施例Example 22
液晶組合物的配方及相應的性能如下表4所示。
表4 實施例2液晶組合物的配方及相應的性能
實施例Example 33
液晶組合物的配方及相應的性能如下表5所示。
表5 實施例3液晶組合物的配方及相應的性能
實施例Example 44
液晶組合物的配方及相應的性能如下表6所示。
表6 實施例4液晶組合物的配方及相應的性能
實施例Example 55
液晶組合物的配方及相應的性能如下表7所示。
表7 實施例5液晶組合物的配方及相應的性能
實施例Example 66
液晶組合物的配方及相應的性能如下表8所示。
表8 實施例6液晶組合物的配方及相應的性能
實施例Example 77
液晶組合物的配方及相應的性能如下表9所示。
表9 實施例7液晶組合物的配方及相應的性能
實施例Example 88
液晶組合物的配方及相應的性能如下表10所示。
表10 實施例8液晶組合物的配方及相應的性能
對比例comparative example 11
液晶組合物的配方及相應的性能如下表11所示。
表11 對比例1液晶組合物的配方及相應的性能
與實施例6相比,對比例1液晶組合物中,不包含式Ⅰ所示化合物。使用結構相近的CPWP-3-2、CPWP-3-O2等量替代式Ⅰ所示化合物。雖然結構相近,但性能相差很大,對比例1液晶組合物介電各向異性相對於實施例6下降十分明顯,需要更大的驅動電壓才能將液晶分子完全驅動,從而消耗更多的電能。與實施例6相比,如果在相同的驅動電壓下,由於對比例1的液晶組合物無法完全驅動將降低其透過率,透過率降低便需要增加背光亮度才能獲得滿足需求的畫面亮度,從而消耗更多的電能。旋轉粘度的增加,也將使對比例1液晶組合物的回應速度變慢。Compared with Example 6, the liquid crystal composition of Comparative Example 1 does not contain the compound represented by formula I. Use equivalent amounts of CPWP-3-2 and CPWP-3-O2 with similar structures to replace the compounds shown in formula I. Although the structures are similar, the properties are quite different. The dielectric anisotropy of the liquid crystal composition of Comparative Example 1 is significantly lower than that of Example 6, and a larger driving voltage is required to fully drive the liquid crystal molecules, thereby consuming more electric energy. Compared with Example 6, if the liquid crystal composition of Comparative Example 1 cannot be fully driven at the same driving voltage, its transmittance will be reduced, and the decrease in transmittance will require increasing the brightness of the backlight to obtain a screen brightness that meets the requirements, thereby consuming More power. The increase of rotational viscosity will also slow down the response speed of the liquid crystal composition of Comparative Example 1.
對比例comparative example 22
液晶組合物的配方及相應的性能如下表12所示。
表12 對比例2液晶組合物的配方及相應的性能
與實施例6相比,對比例2液晶組合物中,不包含式Ⅱ所示化合物,使用化合物PY-2O-O4替代式Ⅱ所示化合物。組合物Δε增大的同時,ε ⊥反而減小,進而ε ⊥/Δε減小,將導致對比例2液晶組合物透過率降低。 Compared with Example 6, the liquid crystal composition of Comparative Example 2 does not contain the compound represented by Formula II, and the compound represented by Formula II is replaced by the compound PY-2O-O4. When the composition Δε increases, ε ⊥ decreases instead, and then ε ⊥ /Δε decreases, which will lead to a decrease in the transmittance of the liquid crystal composition of Comparative Example 2.
對比例comparative example 33
液晶組合物的配方及相應的性能如下表13所示。
表13 對比例3液晶組合物的配方及相應的性能
與實施例6相比,對比例3液晶組合物中,不包含式Ⅰ、式Ⅱ所示化合物。對比例4液晶組合物介電各向異性相對於實施例6下降明顯,需要更大的驅動電壓才能將液晶分子完全驅動,從而消耗更多的電能。與實施例6相比,如果在相同的驅動電壓下,由於對比例1的液晶組合物無法完全驅動將降低其透過率,透過率降低便需要增加背光亮度才能獲得滿足需求的畫面亮度,從而消耗更多的電能。Compared with Example 6, the liquid crystal composition of Comparative Example 3 does not contain the compounds represented by formula I and formula II. The dielectric anisotropy of the liquid crystal composition of Comparative Example 4 is significantly lower than that of Example 6, and a higher driving voltage is required to fully drive the liquid crystal molecules, thereby consuming more electric energy. Compared with Example 6, if the liquid crystal composition of Comparative Example 1 cannot be fully driven at the same driving voltage, its transmittance will be reduced, and the decrease in transmittance will require increasing the brightness of the backlight to obtain a screen brightness that meets the requirements, thereby consuming More electricity.
對比例comparative example 44
液晶組合物的配方及相應的性能如下表14所示。
表14 對比例4液晶組合物的配方及相應的性能
與實施例1相比,對比例4液晶組合物中,式Ⅰ、式Ⅱ所示化合物的質量百分比含量之和為26%。對比例各項參數雖然與實施例相同或相近,但低溫儲存過程中出現晶析現象,具體低溫儲存情況見表15。Compared with Example 1, in the liquid crystal composition of Comparative Example 4, the sum of the mass percentages of the compounds represented by Formula I and Formula II is 26%. Although the parameters of the comparative example are the same or close to those of the examples, crystallization occurs during low-temperature storage. The specific low-temperature storage conditions are shown in Table 15.
下述的表15為實施例、對比例液晶組合物低溫儲存實驗資料。The following Table 15 is the low-temperature storage experiment data of the liquid crystal compositions of the examples and comparative examples.
低溫儲存實驗,使用5ml玻璃瓶和4μm液晶測試盒分別進行測試。分別取1ml實施例、對比例液晶組合物放入5ml玻璃瓶中,作為第一組低溫儲存實驗。將實施例、對比例液晶組合物灌注液晶測試盒中,作為第二組低溫儲存實驗。將灌注了液晶組合物的玻璃瓶放置在-20℃手套箱,將灌注了液晶組合物的液晶測試盒分別放置在-20℃、-30℃手套箱。
表15 實施例、對比例低溫儲存實驗資料
從上述表15可以看出,本發明實施例液晶組合物具有更寬的向列相溫度範圍。It can be seen from the above Table 15 that the liquid crystal composition of the embodiment of the present invention has a wider temperature range of the nematic phase.
下述的表16為實施例、對比例液晶組合物信賴性測試資料。The following Table 16 is the reliability test data of the liquid crystal compositions of the examples and comparative examples.
液晶組合物在液晶顯示元件或液晶顯示器生產過程中的信賴性通過紫外老化試驗並進行VHR測試來進行,液晶組合物紫外試驗前後的VHR資料變化越小,抗紫外能力越強。因此,通過比較各個實施例、對比例在試驗前後的VHR資料的變化來判斷抗紫外能力。The reliability of the liquid crystal composition in the production process of the liquid crystal display element or liquid crystal display is carried out through the ultraviolet aging test and the VHR test. The smaller the change of the VHR data before and after the ultraviolet test of the liquid crystal composition, the stronger the anti-ultraviolet ability. Therefore, the anti-ultraviolet ability is judged by comparing the changes of the VHR data of each embodiment and comparative examples before and after the test.
液晶組合物工作過程中的信賴性可以通過背光老化試驗並進行VHR測試來進行。在長時間的背光照射下,液晶組合物將長時間處在可見光、紫外線和60~70℃的工作環境中,受到外界環境的破壞。液晶組合物背光試驗前後的VHR資料變化越小,抗外界環境破壞能力越強。因此,通過比較各個實施例、對比例在試驗前後的VHR資料的變化來判斷抗外界環境破壞能力。The reliability of the liquid crystal composition in the working process can be tested by backlight aging test and VHR test. Under long-term backlight irradiation, the liquid crystal composition will be exposed to visible light, ultraviolet rays and a working environment of 60-70°C for a long time, and will be damaged by the external environment. The smaller the change in VHR data before and after the backlight test of the liquid crystal composition, the stronger the ability to resist external environmental damage. Therefore, by comparing the changes of the VHR data of each embodiment and comparative examples before and after the test, the ability to resist damage from the external environment can be judged.
首先,在進行紫外、背光老化試驗之前,測定液晶組合物的VHR資料作為初始VHR資料,然後,對液晶組合物進行紫外、背光老化試驗,在試驗後再次測定液晶組合物的VHR資料。First, before the UV and backlight aging test, measure the VHR data of the liquid crystal composition as the initial VHR data, then carry out the UV and backlight aging test on the liquid crystal composition, and measure the VHR data of the liquid crystal composition again after the test.
紫外老化試驗:將液晶組合物灌入相應測試盒中,在波長為365nm的紫外燈下照射5000mJ能量。Ultraviolet aging test: pour the liquid crystal composition into a corresponding test box, and irradiate 5000mJ energy under an ultraviolet lamp with a wavelength of 365nm.
背光試驗:將液晶組合物灌入相應測試盒中,封口,放到光強為25000nit的背光上進行背光老化試驗,老化1000H後進行VHR測試。Backlight test: pour the liquid crystal composition into the corresponding test box, seal it, and put it on a backlight with a light intensity of 25000 nit to perform a backlight aging test. After aging for 1000 hours, perform a VHR test.
在老化試驗後VHR資料相對於初始VHR資料變化越小,說明該液晶組合物抗外界環境破壞能力越強,因此,該液晶組合物的信賴性就越高。The smaller the change of the VHR data after the aging test relative to the initial VHR data, the stronger the ability of the liquid crystal composition to resist damage from the external environment, therefore, the higher the reliability of the liquid crystal composition.
另外,將實施例1~8、對比例1~4液晶組合物灌注入液晶測試盒,進行殘像測試,測試結果一併示於下述的表16中。
表16 實施例1~8、對比例1~4液晶組合物信賴性測試資料
從上述表16可以看出,本發明的實施例液晶組合物紫外、背光後的VHR下降較小,具有較高的抗紫外抗高溫能力,對殘像缺陷改善明顯。It can be seen from the above Table 16 that the liquid crystal composition of the embodiment of the present invention has a small decrease in VHR after ultraviolet light and backlight, has high anti-ultraviolet and high temperature resistance, and has obvious improvement on afterimage defects.
下述的表17為實施例、對比例液晶組合物透過率測試資料。
表17 實施例6、對比例1~3液晶組合物透過率測試資料
對實施例與對比例液晶組合物採用3.5V電壓驅動,延遲量為340nm的設計進行測試。由於對比例1、3介電各向異性較小,需要更大的電壓才能完全驅動,消耗更多的電能。採用與實施例6、對比例2相同的驅動電壓,對比例1、3無法完全驅動,透過率較小。實施例6與對比例2相比,垂直介電常數、ε⊥/Δε比值都更大,透過率更高。透過率的提高有利於背光的充分利用,從而降低背光亮度,降低能耗。The liquid crystal compositions of the examples and the comparative examples were driven by a voltage of 3.5V, and the retardation was designed to be 340nm. Since the dielectric anisotropy of Comparative Examples 1 and 3 is small, a larger voltage is required to fully drive and consume more electric energy. Using the same driving voltage as in Example 6 and Comparative Example 2, Comparative Examples 1 and 3 cannot be fully driven, and the transmittance is relatively small. Compared with Comparative Example 2, Example 6 has larger vertical permittivity, ε⊥/Δε ratio, and higher transmittance. The increase of the transmittance is conducive to the full use of the backlight, thereby reducing the brightness of the backlight and reducing energy consumption.
綜上所述,本發明的液晶組合物具有高的透過率、較高的光學各向異性、高的介電各向異性、高的垂直介電常數、高的ε⊥/Δε比值,較寬的向列相溫度範圍,以及抗紫外抗高溫能力強,無殘像缺陷的液晶組合物。本發明的液晶顯示元件、液晶顯示器通過包含前述的本發明的液晶組合物,具有高的對比度、面板輕薄、能耗低、較寬的使用溫度範圍,以及良好的信賴性。In summary, the liquid crystal composition of the present invention has high transmittance, high optical anisotropy, high dielectric anisotropy, high vertical permittivity, high ε⊥/Δε ratio, and a wide It is a liquid crystal composition with excellent nematic phase temperature range, strong UV resistance and high temperature resistance, and no afterimage defect. The liquid crystal display element and the liquid crystal display of the present invention contain the aforementioned liquid crystal composition of the present invention, and have high contrast, light and thin panel, low energy consumption, wide service temperature range, and good reliability.
顯然,本發明的上述實施例僅僅是為清楚地說明本發明所作的舉例,而並非是對本發明的實施方式的限定,對於所屬領域的普通技術人員來說,在上述說明的基礎上還可以做出其它不同形式的變化或變動,這裡無法對所有的實施方式予以窮舉,凡是屬於本發明的技術方案所引伸出的顯而易見的變化或變動仍處於本發明的保護範圍之列。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those of ordinary skill in the art can also make It is impossible to exhaustively list all the implementation modes here, and any obvious changes or changes derived from the technical solutions of the present invention are still within the scope of protection of the present invention.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130299067A1 (en) * | 2005-06-03 | 2013-11-14 | Lg Display Co., Ltd. | Liquid crystal display device and method for manufacturing the same |
| CN110760313A (en) * | 2018-07-26 | 2020-02-07 | 石家庄诚志永华显示材料有限公司 | Liquid crystal compound, liquid crystal composition, liquid crystal display element and liquid crystal display |
| TW202045991A (en) * | 2019-06-14 | 2020-12-16 | 大陸商石家莊誠志永華顯示材料有限公司 | Liquid crystal compound, liquid crystal display element, and liquid crystal display having improved low-temperature solubility while maintaining rotational viscosity and good response speed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5582767A (en) * | 1992-11-16 | 1996-12-10 | Hoffmann-La Roche Inc. | Fluorosubstituted tolane derivatives |
| DE19521483B4 (en) * | 1994-06-28 | 2005-07-07 | Merck Patent Gmbh | Liquid crystalline medium |
| US6333080B1 (en) * | 1996-08-20 | 2001-12-25 | Chisso Corporation | Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element |
| JP2002226412A (en) * | 2001-02-02 | 2002-08-14 | Citizen Watch Co Ltd | Tolan compound, liquid crystal composition comprising the same and liquid crystal display |
| CN109880637B (en) * | 2019-03-29 | 2023-08-08 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
-
2021
- 2021-04-01 CN CN202110355207.0A patent/CN115181577B/en active Active
- 2021-04-28 TW TW110115363A patent/TWI796679B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130299067A1 (en) * | 2005-06-03 | 2013-11-14 | Lg Display Co., Ltd. | Liquid crystal display device and method for manufacturing the same |
| CN110760313A (en) * | 2018-07-26 | 2020-02-07 | 石家庄诚志永华显示材料有限公司 | Liquid crystal compound, liquid crystal composition, liquid crystal display element and liquid crystal display |
| TW202045991A (en) * | 2019-06-14 | 2020-12-16 | 大陸商石家莊誠志永華顯示材料有限公司 | Liquid crystal compound, liquid crystal display element, and liquid crystal display having improved low-temperature solubility while maintaining rotational viscosity and good response speed |
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| TW202239946A (en) | 2022-10-16 |
| CN115181577A (en) | 2022-10-14 |
| CN115181577B (en) | 2025-07-18 |
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