TW201118159A - Liquid crystal composition for high-speed response time - Google Patents

Abstract

Disclosed is a liquid crystal composition for high speed response, more specifically, a liquid crystal composition for high-speed response time which realizes high-speed response and is free of amorphous staining when applied to panels, and exhibits superior low-temperature stability and high-temperature stability, thus realizing high-quality and high-capacity display information processing, and superior information processing and moving picture display characteristics.

Description

201118159 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a nematic liquid crystal composition for realizing high-speed response time. More particularly, the present invention relates to a high-speed response time nematic liquid crystal composition and a liquid crystal display device using the liquid crystal composition, the liquid crystal domain having a high phase transition, a degree W phase-isotropic temperature, and a high double Refractive index and low rotational viscosity for near-speed response _, no amorphous stains and accurate temperature stability. [Prior Art] As a kind of flat display device, the liquid crystal display device uses the electric H and the light characteristics of the night 曰 a in the injection panel to operate the display function, since the liquid crystal display device has the inch J and the power The low cost and other advantages are widely used in various fields including computer monitors and mobile phone terminals. j If the electro-optical mode used is twisted nematic (cut (10) (10) price; TN) ^ super twisted nematic (SUper_twisted this secret; Shan) mode, optical, and double birefringence (optional compensated birefringence; 0CB) ^ Electrically controlled birefringence ; ) mode = its variant. These modes utilize an electric field that is perpendicular to the various liquid crystal slabs. In addition to these modes, for example, there is a horizontal cut surface, = the electro-optical mode is completely horizontal with each liquid crystal layer. In particular, electro-optic, desktop monitors for the latest liquid crystal displays and to multimedia displays. • ί here. A new liquid crystal medium with improved characteristics is required. In particular, *I want to improve the ringing of the Nagasaki. ^ _ has a low viscosity, 201118159, night b into the Y crystal medium 'especially requires a liquid 曰曰 &quot; with a low rotational viscosity (rl). The rotational viscosity should be 75 亳 Pascal seconds (caffe s) or lower, and 6 = Pasche ambiguity </ br> is not better. In addition to this, the dielectric f should exhibit a suitably wide nematic phase, sufficiently high and refraction (Δ as well as a sufficient dielectric dice (10) a anisotropy) (Δ ε ) to allow a low drive voltage. The display (10) is used in combination with other solutions known in the field of _ liquid crystal display ^ (simple _ or _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The liquid crystal composition of the transistor liquid crystal display. Fine, these compositions have serious disadvantages. The response speed is low, the resistance is too high, and the driving voltage is too high. In addition, the thin film transistor liquid crystal display panel is widely used all over the world, from cold. The region is, for example, a polar region to a hot region such as an equator. For this reason, the liquid crystal composition is important in the low temperature and the temperature of the horse temperature. In particular, the panel county is exposed to extremely low temperatures below zero and thus causes precipitation of crystals. Under the surface, the surface can not be used. When the mutual solubility of the liquid crystal composition of the single ship crystal is deteriorated at low temperature, this crystal precipitation phenomenon occurs. However, it has not been developed yet. A liquid crystal composition of all physical properties is desired. In particular, even if the physical properties such as ringing degree and dielectric anisotropy are satisfied, the liquid crystal composition cannot solve the problem of amorphous staining and low temperature stability. SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a high-speed response time liquid crystal composition that substantially obviates one or more of the problems caused by the limitations and disadvantages of the prior art. It is an object of the present invention to provide a high-speed response time. The nematic liquid crystal composition can prevent amorphous stains and liquid crystal precipitation when applied to a panel at a low temperature, thereby exhibiting excellent low-temperature stability. Another object of the present invention is to provide a high-speed response time nematic liquid crystal group f The object 'has a high «speed, _t or higher nematic phase—isotropic temperature, anisotropy of yttrium index and age, and confirms the static viscosity and threshold voltage of Weimu. - The purpose is to provide a high-speed response time nematic liquid crystal composition to solve the problem of product operation _ High temperature reliability. + Another object of the present invention is to provide a seed liquid device, in particular, a nematic Weijing composition for thin film electro-sparing bristle display of miscellaneous read and crystal display time. These and other advantages of the present invention are obtained, and are specifically and broadly described herein. The present invention provides a nematic liquid crystal composition comprising two selected _polarized σ species of the compound represented by =:=Γ3, and (6) The three compounds of the compound formula 4, the chemical formula 5, and the formula 7 are selected from the formula: [Chemical Formula 1]

Ri 201118159 [Chemical Formula 2]

[Chemical Formula 5]

F

[Chemical Formula 6] R 7

F

[Chemical Formula 7]

Wherein R is a C2-C9 η-alkenyl group, R1 to R8 are each a separate C1-C7 alkyl group, and X is hydrogen (H) or fluorine (F). The liquid crystal composition is composed of (a) two or more non-polarized 201118159 compounds and a weight ratio of 42% to 50% (6) of three or more polar compounds in a weight ratio of 50% to 58%. According to another aspect, the present invention provides a liquid crystal display device comprising the nematic tantalum crystal composition of the present invention. The display device is an active twisted nematic mode liquid. The day 4 is not suitable for the car, and the liquid crystal display of the thin film transistor-liquid crystal display is good. It is to be understood that the summary of the invention and the details of the invention as described herein are intended to be illustrative and illustrative, and are intended to further illustrate the scope of the invention. ® [Embodiment] The present invention will be described below with reference to the drawings. * The twisted nematic mode is a nematic liquid crystal mode of operation. Long to reverse still = mode of liquid crystal display | | The physical properties of the liquid crystal composition of the panel are usually strange to each other. That is to say, considering the correlation of the relevant parameters of the response time of the liquid crystal composition, the response speed of the liquid crystal display is divided into the opening time, in which the electric field is applied at the opening time and the electric field is stopped at the closing time, which is represented by the following equation . Ring [Equation 1] roc- Μ2 ^δ^τ3-^2) [Equation 2] number, turn viscosity, d is the crystal gap, ~ is the dielectric constant th is the dielectric anisotropy (Δε = ε„1丄) , v is for (10) pressure, 籼 is (Fredric's converted) _ voltage, and Keff is effective elasticity often 201118159. In the physical properties of liquid crystal composition, when the composition has low rotational viscosity, high elastic constant, high dielectric In the case of anisotropy, the high-speed response time is ensured. At this time, it is necessary to choose between the rotational viscosity, the elastic constant, and the nematic phase to the isotropic phase transition temperature (TNI). Further, as shown in Equation 3 below, the liquid crystal The crystal gap of the display panel, the refractive index anisotropy of the liquid crystal composition, and the wavelength of the human light indicate the first-minimum value of the twisted nematic liquid crystal cell iGooch-Tairy. According to the determined crystal gap, the determination is applied to the twisted nematic liquid crystal. The refractive index anisotropy of the liquid crystal composition of the box [Equation 3] ά·Ακ!Λ = ^ The liquid crystal display for the monitor The H panel usually makes the liquid crystal composition of the thin film electro-hydraulic liquid crystal display in the twisted nematic mode. Object, operating temperature is _1〇 to 751, ringing The speed is low (10 milliseconds). In addition, 'when the monitor is operated for a long time at a lower operating temperature, the heat generated during the display of the moving image causes deterioration and image sticking (fine ting). In addition, when the liquid crystal composition is When applied to a panel, the pretilt angle and characteristics such as working temperature or response speed are high, and thus the disadvantage is that it causes amorphous stains. According to the applied voltage, the liquid crystal display device uses a nematic liquid crystal phase to adjust the liquid crystal molecules of the liquid crystal composition. Arranging and controlling the light transmittance to realize the image. For this reason, for the liquid crystal display device, the temperature range maintained by the liquid crystal phase is necessary due to the risk of deterioration due to heat generated during long-term operation, and the nematic The phase-isotropic phase transition temperature (TNI) is important. In addition, considering the fact that the liquid crystal display device is propagated to the polar region by 201118159, it is necessary to ensure the crystal nematic (the erysta b nematic phase change / dish (TCN) ' The oscillating liquid phase is initially initiated. In addition, a liquid crystal composition with high response time is required, from * for mobile phones, monitors and televisions. High-quality f high-capacity display information processing and excellent information processing and excellent motion image display. Especially in order to perfectly realize the motion image without afoe-Hmage-free, the temperature is especially the upper limit temperature. c, the response catch should be 5 milliseconds or less. In addition, as shown in Equation 2 and Equation 3, under the condition that the crystal gap is 3.4 μm, the liquid crystal composition is in order to obtain a response speed of 5 msec. The anisotropy should be 4. 5 ± Q. 5, the rotational viscosity should be 55 mPas or less, and the refractive index anisotropy should be Q 12_. (8) In addition, the upper limit temperature of the liquid crystal phase should be 8 Q ± rc. In addition, when the liquid crystal domain is applied to the panel to avoid the occurrence of amorphous stains, while taking into account the operating temperature and response speed, the surface is 6.5. Money is small. From _ then (four) plus, considering the sensitivity to the transmittance of k, resulting in amorphous stains. The nematic liquid crystal of the crystal liquid crystal display has a nematic phase of 8G±1 C-isotropic phase transition temperature, with an electrical anisotropy of 〇iHL, 55 mPas or less. The rotational viscosity and the display device having such an upper limit operating temperature of 80 ± rc or higher or less response speed. Further, the liquid crystal composition has a C or C crystal temperature (TC - N). s A substance changes from a solid phase to a nematic type: once---------------------------------------------------------------------------------------------------- The change and the need for 201118159 liquid crystal medium having a relatively fine crystal temperature, the crystallization temperature is not suitable for the liquid crystal composition surface of the invention _3G ° C or lower, so the brittle land improves the characteristics of the liquid crystal display device. In particular, the present invention has a premise that when the liquid crystal _ non-panel has a crystal gap of 3.4 micrometers, amorphous stains can be avoided. The error is quickly responded by the best combination of early liquid crystal compounds. The nematic liquid crystal group warfare ensures all physical In particular, the liquid crystal composition is composed of a predetermined composition composed of a non-polar or polar component. (a) from the chemical formula 1, the chemical formula 2 and the chemical formula 3, the chemical cap 3 or the Fine _; and (6) from chemical formula or more:: heart: formula 6 and chemical formula 7 represented by chemical formula ^ [Chemical Formula 1]

R

[chemistry

R20〇~ [Chemical Formula 3] or3

10 201118159 [Chemical Formula 4]

p

F

[Chemical Formula 6] [Chemical Formula η

In the above formula, R is a C1 'C7 alkyl group in which C2-C9n-alkenyl groups 'R1 to R8' are independent, and X is hydrogen (8) or fluorine (F). In the preferred embodiment of the non-polar composition of the liquid crystal, i, and 'wars', (i) one or more compounds are selected from each of the formulas 1, 4, and 4, respectively. (ii) one or more compounds are selected from each of the chemical formula 1 and the chemical winds 0丄_b, and the formula (2) is selected from the chemical gossip and the wind 10 &lt; 5 Compounds, or (iv) each selected from Chemical Formula 2 - or a plurality of compounds. Formula 4, in liquid crystal composition, in a preferred embodiment of the polar composition, one or more compounds are selected from each of Chemical Formula 5, Chemical Formula 6 and Chemical Formula 7, 201118159 (5) from Chemical Formula 4, Chemical Formula 5, and Chemical Formula 6 Each one selects—or a plurality of compounds' ((1) each of one or more compounds selected in the formula 4, the chemical formula 5, and the chemical formula 7, (5) one or more compounds are selected from each of the chemical formula 4, the chemical formula 6, and the chemical formula, or (v) Each of Chemical Formula 5, Chemical Formula 6, and Chemical Formula 7 is selected from one or more compounds. Therefore, the liquid crystal composition of the present invention is composed of a composition selected from non-polar compounds and a composition selected from polar compounds. The invention finds that when the liquid crystal composition has a high face angle, that is, 5.5 or higher, the thin film transistor-liquid crystal displays an amorphous stain in the enamel panel, and the pre-tilt angle of the towel and the liquid crystal composition are not The ratio of the polar components is related. Therefore, considering the fact that the present invention uses (a) the number of non-polar compounds is 5 (10) or more by weight, and (6) according to the weight The amount of the polar compound is 5 (%) or less. The present invention is characterized in that the liquid crystal composition is preferably used in a weight ratio of (a) a nonpolar compound to 58%, and a weight ratio of 52 to 56%. The slanting angle _ is 5. 5 ° or less, the present invention can reduce the pretilt angle _ 5. 5 ° or less, the weight ratio of the polar compound is preferably from 42 to 50%, and the weight ratio is from 44 to 48%. Thus, amorphous stains can be avoided. Depending on the total weight of the liquid crystal composition, when the non-polar compound exhibits a weight ratio exceeding 58%, the pretilt angle is greater than 5.5. And amorphous stains appear. Further, when non-polar compounds are present When the content-to-weight ratio is less than 50%, the viscosity is increased, whereby a rotational viscosity of 55 mPas or less and a response speed of 5 msec cannot be obtained. All non-polar compounds of the liquid crystal composition are classified by weight, etc. The non-polar compound comprises 60 to 85 parts by weight of the compound of Chemical Formula 1, 〇12 201118159 to 10 parts by weight of the compound of Chemical Formula 2, and 15 to 3 aliquots of the chemical formula 3 Compound The entire polar compound of the crystal composition is divided into 1 〇〇 aliquots by weight, the polar compound contains 20 to 40 aliquots of the compound of Chemical Formula 4, and 14 to aliquots of the compound of Chemical Formula 5 '15 to 35 An aliquot of the compound represented by Chemical Formula 6 and a chemical compound represented by Chemical Formula 7 in an amount of 1 G to 2 G aliquots. The polar compound comprises a knot-form compound of Chemical Formula 4, having the structure of Chemical Formula 5 - Or a plurality of compounds and a compound having the structure of Chemical Formula 6. Further, the polar compound contains a chemical formula having a different carbon number, or a compound having a different number of carbon atoms. Two kinds of compounds are obtained from two or more compounds of Chemical Formula 6 having the same number of carbon atoms. Further, the compound having the structure of the chemical formula 7 is a group consisting of a compound selected from the group consisting of a chemical formula and a combination thereof. &gt;, [Chemical Formula 7a] "R8^K&gt;o-d^ [Chemical Formula 7b]

In the above chemical formula, each - that is, a Q-C7 hydrocarbon group in the chemical formulas 2 and 3 'per-single liquid crystal compound is used in excess according to the scope of the meaning of 13 201118159, nematic phase - isotropic _ Reduced to 79 ° C or machi, and can not ensure that ^ ^ 4 '5 6 2 is greatly increased the refractive index anisotropy or viscosity as used, thus unable to achieve fast response time of 6 milliseconds or less and expectations Turn over the refractive index =. Further, when the content is too low, there is a disadvantage in that the refractive index anisotropy is lower than the desired level. When the liquid crystal compound of Chemical Formula 7 exceeds the above-defined range, the nematic phase-isotropic phase transition temperature (top) increases, but the crystal nematic phase transition temperature (increased rapidly, the silk temperature is not read, and the sigh is timeless Now &quot;second or shorter^low response time. In addition, when the content is extremely low, the nematic phase-isotropic phase transition temperature is rapidly reduced to 耽 or lower, and the disadvantage is that the high-temperature reliability of the panel cannot be ensured. 'The linear compounds of the chemical formulas 2 and 3 having the 2-ring structure (2__(10)(4)) used in the present invention can be used to determine the anisotropy of anion and the desired level of dielectric anisotropy. A single liquid crystal compound with 7 ensures a coherent phase transition temperature (10) with the chime. That is to say, for liquid crystal compounds, chemical formula! The single liquid crystal compound has a low viscosity and a low rotational viscosity, and contributes to a short response time, so that it is preferably contained as an indispensable component. Further, the compound of Chemical Formula 1 contains at least one selected from the group consisting of the compounds shown in 201118159. The compound of the formula i contains a compound of the formula la of a weight ratio of 2 to 75%, and a compound of a chemical formula &amp; of a weight ratio of 1 Torr to a compound of the formula 1 &amp; A compound of the formula lb in a weight ratio of 15 to 30% is more preferred. [chemical formula la] R.1

[Chemical Formula lb] R\j

Each R1 is a C1-C7 hydrocarbon group. In particular, the present invention utilizes the compound of Chemical Formula 2 to ensure a moderate temperature of the liquid crystal composition. The compound of Chemical Formula 2 is indeed viscous with a viscosity-neutral phase-isotropic phase transition temperature, and achieves a high-speed response time of 5 msec or less.

The alkQxy compound of Chemical Formula 3 can be arbitrarily present, and as described above, helps to ensure a low viscosity and a moderate temperature range of the liquid crystal composition. The individual liquid crystal compounds of Chemical Formulas 4, 5, and 6 perform elevation actions to ensure a high-speed response of the nematic liquid crystal phase to the individual crystallographic anisotropy and dielectric anisotropy The liquid crystal compound exhibits a high temperature range, thus ensuring an isotropic phase transition temperature (TNI) of at or higher, thereby ensuring high temperature reliability, which is considered to be generated during operation of the liquid crystal display device. Especially important. The liquid crystal medium further contains a generally used amount of an additive and a chirai compound. Depending on the total weight of the compound, the additional component preferably exhibits a concentration of from 0.1 to 6%, preferably from 0.1 to 6%. It is preferred that each compound is used in a concentration of from 0.1 to 3%. Further, the liquid crystal composition of the present invention uses a combination of nematic liquid crystal, smectic liquid crystal, and cholesteric liquid crystal, and these liquid crystals are generally known to improve the characteristics of the liquid crystal composition. However, when a large amount of the liquid crystal compound is excessively increased, the desired properties of the liquid crystal composition are deteriorated. The amount of increase is determined according to the demand of the nematic liquid crystal composition. The aforementioned nematic liquid crystal composition applied to a liquid crystal display device can exhibit excellent physical properties. Therefore, the present invention provides a liquid crystal display device comprising a nematic liquid crystal composition having a high-speed response time.乂 佳 佳 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' Speed (when operating at 6 Hz, 6 volts 30C to 80 ± 1 C operating temperature), and all liquid crystal display devices suitable for nematic liquid crystals: products, especially suitable for 19-amp resolution monitors Thin film transistor - liquid crystal display. Compared with the brightness of the conventional thin film transistor _ liquid crystal display for the monitor, which is 25 〇 square centimeter, 'these monitors show an increase in brightness, compared with 8 milliseconds of S going. Increased by 38%, the upper and lower operating temperature range 16 201118159 The range of the abductor 20C to 75C is increased to the range of Ca to 8〇±1&lt;t. Therefore, Ji r==::::== display. The liquid crystal display device is an active twisted nematic mode liquid crystal, and more particularly a twisted radial liquid day display device for a thin germanium transistor-liquid crystal display. In addition, the liquid crystal display device includes a high-quality, high-capacity device such as a mobile phone, a monitor, and a monitor. The electric 彳 彳 and the liquid 曰曰 Γ Γ 透过 透过 透过 透过 透过 透过 透过 透过 透过 透过 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布 涂布The mother's 昼素 contains red X green/blue sub-pixels, but: the rear rubbing orientation, in the two internal injection of the crystal composition, and the adhesion-polarizer to the array of soil. ▲ above' thus manufacturing the steering column mode liquid crystal display In addition to the liquid crystal display device using liquid crystal composition, those skilled in the art 细节 = the details of the liquid crystal display device, so the detailed configuration of the liquid crystal display device and its operation principle are omitted. The example will now be described in more detail in conjunction with the following examples. The present invention is only intended to illustrate the invention, and should be considered to limit the scope of the present invention. 17 201118159 <Examples 1 to 3> According to the composition described in Table 1 below (unit: wt%) The content is prepared by mixing a nonpolar compound (N-1 to N4) with a polar compound (P-1 to P-8) to prepare a nematic liquid crystal composition. Table 1 No. Component Example 1 Example 2 Example 3 N-1 ciHT c ^ 5.0 5.0 N-2 25.0 25.0 29.0 N-3 13.0 13.0 14.0 N-4 /^(Ζη[ΙΗ〇-〇η3 11.0 11.0 11.0 Total 54.0 54.0 54.0 P-1 czHs~cy~C3~^^f F 5.0 5.0 5.0 P-2 12.0 12.0 12.0 P-3 ε·3Η7~0~0^(5~ρ: 3.0 3.0 3.0 P-4 CsHii-0—0~C$~F 5.0 5.0 5.0 P-5 c;, H7- 0&gt;-&lt;0'cH2CH2~Gi-F 8.0 8.0 8.0 P-6 cshi'_C^KZ)kcH2CH2&quot;Cj&gt;_f 7.0 7.0 7.0 P-7 6.0 6.0 P-8 6.0 201118159

Total 46.0 46.0 46.0 Total [Experimental tile m 100.0 100.0 100.0 For each liquid crystal composition, according to the slave method disclosed in Korean Patent Application Νο. 2006_0045599, physical properties such as crystallization temperature and nematic phase-isotropic phase transition temperature are measured by The results obtained are shown in Table 2 below. Form 2

Example 1 Example 2 Example 3 Crystallization temperature (Tc_N) ct) ~^__ -30 -30 -30 Nematic phase isotropic phase transition temperature (Tni) (°C) ~~~--- 80.0 79.0 82.0 Refractive index Anisotropy (Δη) 0.1210 0.1203 0.1204 Refractive index (no) 1.4979 1.4970 1.4970 ______^Electrical anisotropy (Δε) 4.7 4.5 4.9 Rotational viscosity (mPascals) 53.0 55.0 49.0 Response speed (ms) 4.8 5.0 5.0 ^Refraction Rate anisotropy, refractive index, dielectric anisotropy, degree of rotation, and relatively low crystallization temperature and excellent stability at low temperatures. In addition, the liquid crystal composition has the optimum composition so that it can have an upper limit temperature of 79t: high and a response speed of 5 milliseconds or less. 19 201118159 [Experimental Example 2] The non-polar and polar components, pretilt angles and various contents contained in the liquid crystal composition in each of the examples were compared, and the results obtained therefrom are shown in Table 4. The composition of this film comparison example is shown in Table 3. As can be seen from Table 4, the pretilt angle of the liquid crystal associated with the amorphous stain generated by the thin Form 3 _ crystal-liquid crystal display panel was compared. No. Component Comparison Example 3 N-1 c?ht ~^C~V~C3~°ch3 0 N-2 27.0 N-3 18.0 N-4 15.0 Total 60.0 P-1 c f F 9.0 P-2 12.0 P- 3 P-4 P-5 9.0 P-6 C5Hii-^)^X3_CHi^2_Cj&gt;~F 9.0 P-7 ^ht-&lt;3-0-Cv_C5~',;

20 201118159

Example 2 Example 3 Example 1 Non-polar component (% by weight) ----- 54.0 Polar component (% by weight) 46.0 Total 100.0 Pretilt angle (°) '---- 5.5 54.0 46.0 54.0 46.0 100.0 54% or less The non-polar (four) october ... rotten in 3 using the weight of the heart "There is a 5.5. _, the face angle, from 1 side / there are amorphous stains. On the other hand, the comparative example i uses the number of the present invention The sexual component, thus having a pre-dip, which is higher than 5.5, results in an amorphous stain in the panel. [Experimental Example 3] For each of the compositions of the present invention, these are stored in the cold lining muscles. After the composition was taken, the crystal precipitation was confirmed to evaluate the low temperature stability (Table 5). 21 201118159 Table 5 Storage conditions Example 1 Example 2 -------- Crystal-free precipitation Example 3 Crystal-free precipitation one week -20° C crystalless sedimentation hall for two weeks -20 °C crystalless immersion crystalless sedimentation crystalless precipitation from Table 5 can be exemplified, examples of this hairy month, examples 2 and 3 do not appear crystal precipitation after two weeks of storage, This means that the composition of the invention ensures low temperature reliability Sex.

It is apparent from the foregoing that the nematic Wei-crystal composition has no amorphous stain and exhibits excellent low-temperature reliability and high-speed response time, thereby being suitable for high quality and large valley! It is not a bribe-based liquid crystal age device' and exhibits the characteristics of the information processing and motion image display. This composition solves the deterioration problem caused by the celestial surface, thereby confirming the high-temperature reliability of the health product and the motion image without the residual image. Although the present invention has been disclosed above in the foregoing embodiments, it is invented. Without departing from the spirit and scope of the present invention,

It belongs to the special protection of the invention. The scope of protection defined by the present invention is in the scope of the appended claims.明 &gt; 考 [Simple diagram description] ang [Main component symbol description] Benefit 4 %«, 22

Claims (1)

201118159 VII. Patent Application Range·· • L A nematic liquid crystal composition containing (8) ❹ two chemical compounds selected from the chemical formula 2 and the chemical formula 3; and (b) One or more polar compounds of the following Chemical Formula 4, Chemical Formula 5, selected compound of the chemical compound, and Chemical Formula 7: [Chemical Formula 1] RiO〇^ [Chemical Formula 2] or3 [Chemical Formula 3] &quot;h^OQ- [Chemical Formula 4] F F- F; F F 23 201118159 [Chemical Formula 7] Ptt2.dH2 F, wherein R is CrC9 η-alkenyl, and R) to R8 are each independently CVC: 7 hydrocarbyl (aikyi)' and hydrazine is hydrogen (H) or fluorine (F). 2. The nematic liquid crystal composition according to Item 1, wherein the liquid crystal composition has a weight ratio of (a) a nonpolar compound of from 5 to 58%, and (9) a weight ratio of the polar compound of 42 % to 50%. The nematic liquid crystal composition according to Item 2, wherein the liquid crystal composition uses (a) a nonpolar compound in a weight ratio of 52 〇 / 〇 to 56%, and (9) a polar compound in a weight ratio of 44% Up to 48%. 4. The nematic Weijing composition according to Item 2 of the claim 2, wherein the non-polar compound of the reversing crystal composition is divided into 1 aliquot according to the weight, and the non-polar compound comprises 6 〇# to Μ equal weight The compound represented by Chemical Formula 1, which is an aliquot of the compound of Chemical Formula 2 and 15 to 3 aliquots of the compound of Chemical Formula 3 is aliquoted. 5. The nematic liquid crystal composition according to claim 2, wherein the polar compound of the liquid crystal composition has a weight of _minutes (10), and the polar compound comprises a compound represented by Chemical Formula 4 of 2 to 40, etc. , 14 to 3 〇 重量 重量 24 24 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 6. The nematic liquid crystal composition according to claim 1, wherein the compound comprises the structure of the formula 7, the chemical formula selected in the group consisting of the compound of the chemical formula and the combination thereof [chemical formula] 7b] wherein each Rs is a CrC7 hydrocarbon group. # 7. The nematic liquid crystal composition according to claim 1, wherein the chemical formula = at least one selected from the group consisting of the compound represented by the chemical formula 1 lb [chemical formula la] [chemical formula lb] 25 201118159 each R] is a Crc7 hydrocarbon group. 8. The nematic liquid crystal composition according to claim 7, wherein the compound of the formula 包含 comprises «the compound of which is 75% of the formula la and the chemical formula lb of the weight ratio of 10% to 40%. Compound. 9. The nematic liquid crystal composition according to claim 8, wherein the chemical formula compound comprises a compound of the formula lb and a weight ratio of 15% to 30% by weight of the formula lb. . 10. The nematic Weijing composition as recited in claim 1 further comprises an additive and a chiral dopant. 11. The nematic liquid crystal composition of claim 1, wherein the additive and the chiral dopant exhibit a concentration of from 01% to 10%, respectively, based on the total weight of the compound. 12 The total weight of the nematic liquid as described in Item 11 of the claim, the additive and the chiral concentration. The crystal composition' wherein the compound is represented by 0.1% to 6% according to the compound 13. Γ = Γ Item 12 of the Sakisaki liquid crystal, according to the weight of the compound, the additive and the chiral dopant respectively exhibit a concentration of (10). The nematic liquid crystal composition according to the above item, wherein the nematic liquid 26 201118159 composition has a pretilt angle which should be 5.5 or less. A liquid crystal display device comprising one of the nematic liquid crystal compositions according to claim 1 of the claim. 27 201118159 IV. Designated representative map: (1) The representative representative of the case is: None. (2) A brief description of the symbol of the representative figure: 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: [Chemical Formula 1]