A kind of liquid crystal display device

文档序号:1741325 发布日期:2019-11-26 浏览:24次 中文

阅读说明:本技术 一种液晶显示器件 (A kind of liquid crystal display device ) 是由 李学锋 舒克伦 徐凯 贵丽红 张倩 李正强 乔云霞 崔青 于 2018-05-18 设计创作,主要内容包括:本发明公开一种液晶显示器件,包括阵列基板、与所述阵列基板相向而设的对侧基板,还包括位于所述阵列基板与对侧基板之间的液晶组合物;所述阵列基板包括长条状等间距排列的狭缝电极、狭缝电极之间的电极间隙,狭缝电极与电极间隙位于同一层结构;所述阵列基板包括位于狭缝电极下方的块状电极;所述阵列基板还包括位于狭缝电极和块状电极之间的绝缘层。该液晶显示器件具有较高的光的透过率,使更多的背光穿透液晶显示器件,使液晶显示器件具有较高的亮度。(The present invention discloses a kind of liquid crystal display device, further includes the liquid-crystal composition between the array substrate and opposite side substrate including array substrate, and the opposite side substrate that sets opposite with the array substrate;The array substrate includes gap electrode, the electrode gap between gap electrode that strip equidistantly arranges, and gap electrode and electrode gap are located on the same floor structure;The array substrate includes the block type electrode below gap electrode;The array substrate further includes the insulating layer between gap electrode and block type electrode.The transmitance of liquid crystal display device light with higher makes more backlight penetrating LCD device parts, makes liquid crystal display device brightness with higher.)

1. a kind of liquid crystal display device, including array substrate, opposite with the array substrate and the opposite side substrate that sets, feature exist In further including the liquid-crystal composition between the array substrate and opposite side substrate;The array substrate includes strip etc. Electrode gap between the gap electrode of spacing arrangement, gap electrode, gap electrode and electrode gap are located on the same floor structure;Institute Stating array substrate includes the block type electrode below gap electrode;The array substrate further includes being located at gap electrode and bulk Insulating layer between electrode.

2. liquid crystal display device according to claim 1, which is characterized in that the width and electrode gap of the gap electrode Width ratio be 1:1-1:9.

3. liquid crystal display device according to claim 1, which is characterized in that the width and electrode gap of the gap electrode Width ratio be 1:1-1:2.

4. liquid crystal display device according to claim 1, which is characterized in that when the liquid-crystal composition is showing as dielectric just When property, the folder in the initial orientation direction of the length direction of liquid crystal molecule in the length direction and liquid-crystal composition of the gap electrode Angle is 5 ° -45 °.

5. liquid crystal display device according to claim 1, which is characterized in that when the liquid-crystal composition is showing as dielectric just When property, the folder in the initial orientation direction of the length direction of liquid crystal molecule in the length direction and liquid-crystal composition of the gap electrode Angle is 5 ° -15 °.

6. liquid crystal display device according to claim 1, which is characterized in that born when the liquid-crystal composition shows as dielectric When property, the folder in the initial orientation direction of the length direction of liquid crystal molecule in the length direction and liquid-crystal composition of the gap electrode Angle is 45 ° -85 °.

7. liquid crystal display device according to claim 1, which is characterized in that born when the liquid-crystal composition shows as dielectric When property, the folder in the initial orientation direction of the length direction of liquid crystal molecule in the length direction and liquid-crystal composition of the gap electrode Angle is 75 ° -85 °.

8. liquid crystal display device according to claim 1, which is characterized in that the liquid-crystal composition includes one or more Formulas I compound represented and one or more Formula II compounds represented:

A-R0-BI;

Wherein:

A indicates that the group that dielectric constant is greater than 0, B state group of the dielectric constant less than 0;

R0Indicate CF2O、OCF2、OCF2O、CHFO、OCHF、OCHFO、CF2、CHF、CH2、CH2CH2、CHFCH2、CH2CHF、 CHFCHF、CF2CH2、CH2CF2、CF2CHF、CHFCF2、CF2CF2、CHCH、CFCH、CHCF、CFCF、Si、N、O、S、CR*2CR* *2、CR*FCR**2、CR*2CR**F、CR*FCR**F、CF2CR**2、CR*2CF2、CF2CR**F、CR*FCF2、CR*CR**、 CFCR**、CR*CF、 And/or one of any fluorobenzene or a variety of;

Alkoxy that R*, R** each independently represent H, carbon atom number is 1-10 alkyl, carbon atom number are 1-10, carbon atom The alkenyloxy that the alkenyl or carbon atom number that number is 2-10 are 3-8;

R1、R2Each independently representing alkoxy, carbon atom number that alkyl, carbon atom number that carbon atom number is 1-10 are 1-10 is The alkenyl or carbon atom number of 2-10 is the alkenyloxy of 3-8, and R1、R3It is any one or more disjunct in shown group CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl ,-O-;

It indicatesOr one of any fluorobenzene or a variety of;

W indicates 1,2 or 3.

9. liquid crystal display device according to claim 8, which is characterized in that the liquid-crystal composition also includes a kind of or more Kind formula III compound represented:

Wherein:

R3, indicate carbon atom number be 1-10 alkyl, carbon atom number be 1-10 alkoxy, carbon atom number be 2-10 alkenyl Or carbon atom number is the alkenyloxy of 3-8, and R3Any one or more disjunct CH in shown group2It can be by cyclopenta, ring Butyl, cyclopropyl ,-O- substitution;

R4Indicate F, CF3、OCF3、OCHF2Or OCH2F;

It indicatesOr one in any fluorobenzene Kind is a variety of;

Indicate one or both of benzene or fluorobenzene;

M indicates 1,2 or 3;Indicate to n 0 or 1.

10. liquid crystal display device according to claim 9, which is characterized in that chemical combination shown in one or more Formulas I Object is one or more selected from following formula I1's to I3 compound represented:

Wherein,

R5、R6Each independently represent the alkyl, carbon that alkyl, fluorine, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10 Alkenyl that alkoxy that alkoxy that atomicity is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10, fluorine The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that substituted carbon atom number is 2-10, carbon atom number are 3-8 are 3-8's Alkenyloxy, and R5、R6Any one or more CH in shown group2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl;

It each independently represents Or one of any fluorobenzene or a variety of;

X each independently represents CH2, O or S;

P indicates 1,2 or 3;Q indicates 0,1 or 2.

11. liquid crystal display device according to claim 10, which is characterized in that 1 compound represented of Formulas I is selected from down One kind of Formulas I 1-1 to I1-4 compound represented is stated, 2 compound represented of Formulas I is selected from shown in following formula I2-1 to I2-8 Compound one kind, 3 compound represented of Formulas I be selected from following formula I3-1 to I3-8 compound represented one kind,

Wherein, R5、R6Each independently represent the alkane that alkyl, fluorine, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10 The alkene that alkoxy that alkoxy that base, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10 The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that base, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8 be The alkenyloxy of 3-8, and R5、R6Any one or more CH in shown group2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl;

X each independently represents CH2, O or S.

12. liquid crystal display device according to claim 9, which is characterized in that change shown in one or more Formula II Close one or more, the chemical combination shown in one or more formula IIIs that object is selected from following formula II1 to II5 compound represented Object is one or more selected from following formula III1's to III14 compound represented:

Wherein,

R11、R21Each independently represent the alkoxy that alkyl, carbon atom number that carbon atom number is 1-6 are 1-6, carbon atom number 2- 6 alkenyl or carbon atom number is the alkenyloxy of 3-6;

R31Indicate that carbon atom number is the alkyl of 1-6.

Technical field

The present invention relates to technical field of liquid crystal display.More particularly, to a kind of liquid crystal display device.

Background technique

Currently, the application range of liquid-crystal compounds is expanded increasingly wider, it can be applied to a plurality of types of displays, electricity In optical device, sensor etc..Liquid-crystal compounds for above-mentioned display field it is many kinds of, wherein nematic liquid crystal application is most It is extensive.Nematic liquid crystal has been applied in passive TN, STN matrix display and system with tft active matrix.

For thin-film transistor technologies (TFT-LCD) application field, although market is very huge in recent years, technology It graduallys mature, but requirement of the people to display technology is also in the continuous improvement, is especially realizing quick response, reduce driving electricity Pressure is to reduce power consumption etc..The liquid crystal material photoelectron material one of important as liquid crystal display, to improvement liquid crystal display The performance of device plays an important role.

As liquid crystal material it is necessary to have good chemical and thermal stability and to the stabilization of electric field and electromagnetic radiation Property.And liquid crystal material is used as thin-film transistor technologies (TFT-LCD), it does not need only to have as outside upward stability, should also have Wider nematic temperature range, suitable birefringence anisotropy, very high resistivity, good uviolresistance The performances such as energy, high charge retention rate and low-steam pressure.

For dynamic screen display applications, display picture ghosting and smearing is eliminated, it is desirable that liquid crystal has cracking response speed Degree, therefore it is required that liquid crystal has lower rotary viscosity γ 1;In addition, in order to reduce equipment energy consumption, being wished for portable device Hope the driving voltage of liquid crystal as low as possible;And the driving voltage requirement for the display of the purposes such as TV, for liquid crystal It is not so low.

The viscosity of liquid-crystal compounds, especially rotary viscosity γ 1 directly affect the response time after liquid crystal power-up, either Rise time (ton) or fall time (toff), all proportional with the rotary viscosity γ 1 of liquid crystal, rise time (ton) Due to related with liquid crystal cell and driving voltage, can be adjusted by the method for increasing driving voltage with liquid crystal cell box thickness is reduced; And fall time (toff) is unrelated with driving voltage, mainly and the elastic constant of liquid crystal is related with liquid crystal cell box thickness, box thickness (toff) can be reduced fall time by becoming thin, and under different display modes, the motion mode of liquid crystal molecule is different, TN, IPS, VA Three models respectively with average elastic constants K, distortion elastic constant, bend elastic constant inversely.

According to liquid crystal continuum theory, a variety of different liquid crystal are in the case where external force (electric field, magnetic field) acts on after deformation occurs, meeting By intermolecular interaction, original shape is returned in meeting " rebound ";Likewise, liquid crystal is also due to intermolecular interaction Power forms " viscosity ".The minor change of liquid crystal molecule can make the conventional parameter performance of liquid crystal that apparent variation occur, these variations Has plenty of certain rule, some seems to be not easy to find rule, the interaction between liquid crystal molecule can also be generated obvious Influence, these influences are very delicate, so far also without forming very perfect theoretical explanation.

The viscosity of liquid crystal is related with liquid crystal molecule structure, studies the viscosity and liquid of the liquid crystal system that different liquid crystal molecules are formed Relationship between brilliant molecular structure is one of the vital task of dispensing liquid crystal engineer.

The high reason of liquid crystal display panel energy consumption be only about 5% or so backlight can penetration indicator part, and by human eye Capture, most light are " wasted ".If the high liquid crystal of light transmittance can be developed, it is strong backlight can be reduced Degree, to realize the purpose for saving energy consumption, extend equipment uses the time.

Accordingly, it is desirable to provide a kind of new liquid crystal display device.

Summary of the invention

The purpose of the present invention is to provide a kind of liquid crystal display device, which has light transmittance height, bright The characteristics of degree is high, energy-conservation energy consumption.

In order to achieve the above objectives, the present invention adopts the following technical scheme:

A kind of liquid crystal display device, including array substrate, and the opposite side substrate that sets, feature opposite with the array substrate It is, further includes the liquid-crystal composition between the array substrate and opposite side substrate;The array substrate includes strip Electrode gap between the gap electrode that equidistantly arranges, gap electrode, gap electrode and electrode gap are located on the same floor structure; The array substrate includes the block type electrode below gap electrode;The array substrate further includes being located at gap electrode and block Insulating layer between shape electrode.

Preferably, the ratio of the width of the width and electrode gap of the gap electrode is 1:1-1:9.

Preferably, the ratio of the width of the width and electrode gap of the gap electrode is 1:1-1:2.

Preferably, when the liquid-crystal composition shows as Dielectric positive, the length direction and liquid crystal of the gap electrode The angle in the initial orientation direction of the length direction of liquid crystal molecule is 5 ° -45 ° in composition.

Preferably, when the liquid-crystal composition shows as Dielectric positive, the length direction and liquid crystal of the gap electrode The angle in the initial orientation direction of the length direction of liquid crystal molecule is 5 ° -15 ° in composition.

Preferably, when the liquid-crystal composition shows as dielectric negativity, the length direction and liquid crystal of the gap electrode The angle in the initial orientation direction of the length direction of liquid crystal molecule is 45 ° -85 ° in composition.

Preferably, when the liquid-crystal composition shows as dielectric negativity, the length direction and liquid crystal of the gap electrode The angle in the initial orientation direction of the length direction of liquid crystal molecule is 75 ° -85 ° in composition.

Preferably, the liquid-crystal composition includes one or more Formulas I compounds represented and one or more Formula II institute The compound shown:

A-R0-BI;

Wherein:

A indicates that the group that dielectric constant is greater than 0, B state group of the dielectric constant less than 0;

R0Indicate CF2O、OCF2、OCF2O、CHFO、OCHF、OCHFO、CF2、CHF、CH2、CH2CH2、CHFCH2、CH2CHF、 CHFCHF、CF2CH2、CH2CF2、CF2CHF、CHFCF2、CF2CF2、CHCH、CFCH、CHCF、CFCF、Si、N、O、S、CR*2CR* *2、CR*FCR**2、CR*2CR**F、CR*FCR**F、CF2CR**2、CR*2CF2、CF2CR**F、CR*FCF2、CR*CR**、 CFCR**、CR*CF、 And/or one of any fluorobenzene or a variety of;

Alkoxy that R*, R** each independently represent H, carbon atom number is 1-10 alkyl, carbon atom number are 1-10, carbon The alkenyloxy that the alkenyl or carbon atom number that atomicity is 2-10 are 3-8;

R1、R2Each independently represent the alkoxy, carbon atom that alkyl, carbon atom number that carbon atom number is 1-10 are 1-10 The alkenyloxy that the alkenyl or carbon atom number that number is 2-10 are 3-8, and R1、R3Any one or more not phases in shown group CH even2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl ,-O-;

It indicatesOr one of any fluorobenzene or a variety of;

W indicates 1,2 or 3.

Preferably, group shown in A expression V, one of group shown in VI 1- VI 3 of B expression;

Wherein,

R3、R4Indicate the alkyl, carbon atom number that alkyl, fluorine, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10 For the alkoxy of 1-10, fluorine-substituted carbon atom number be 1-10 alkoxy, carbon atom number be 2-10 alkenyl, fluorine-substituted The alkene oxygen that the alkenyloxy or fluorine-substituted carbon atom number that alkenyl that carbon atom number is 2-10, carbon atom number are 3-8 are 3-8 Base, and R3、R4Any one or more CH in shown group2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl;

It each independently represents Or one of any fluorobenzene or a variety of;

X each independently represents CH2, O or S;

P indicates 1,2,3;

Q indicates 0,1,2.

Preferably, the liquid-crystal composition also includes one or more formula III compounds represented:

Wherein:

R3, indicate carbon atom number be 1-10 alkyl, carbon atom number be 1-10 alkoxy, carbon atom number be 2-10 chain The alkenyloxy that alkenyl or carbon atom number are 3-8, and R3Any one or more disjunct CH in shown group2It can be by ring penta Base, cyclobutyl, cyclopropyl ,-O- substitution;

R4Indicate F, CF3、OCF3、OCHF2Or OCH2F;

It indicatesOr in any fluorobenzene It is one or more;

Indicate one or both of benzene or fluorobenzene;

M indicates 1,2 or 3;Indicate to n 0 or 1.

Preferably, one or more Formulas I compounds represented are selected from following formula I1 to the one of I3 compound represented Kind is a variety of:

Wherein,

R5、R6Each independently represent the alkane that alkyl, fluorine, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10 The alkene that alkoxy that alkoxy that base, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10 The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that base, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8 be The alkenyloxy of 3-8, and R5、R6Any one or more CH in shown group2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl;

It each independently represents Or one of any fluorobenzene or a variety of;

X each independently represents CH2, O or S;

P indicates 1,2 or 3;Q indicates 0,1 or 2.

Preferably, 1 compound represented of Formulas I is selected from the one kind of following formula I1-1 to I1-4 compound represented, institute It states 2 compound represented of Formulas I and is selected from the one kind of following formula I2-1 to I2-8 compound represented, 3 compound represented of Formulas I Selected from following formula I3-1 to one kind of I3-8 compound represented,

Wherein, R5、R6Each independently representing alkyl, fluorine, fluorine-substituted carbon atom number that carbon atom number is 1-10 is 1-10 Alkyl, carbon atom number be 1-10 alkoxy, fluorine-substituted carbon atom number be 1-10 alkoxy, carbon atom number be 2-10's The alkenyloxy or fluorine-substituted carbon atom that alkenyl that alkenyl, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8 Count the alkenyloxy for being 3-8, and R5、R6Any one or more CH in shown group2It can be by cyclopenta, cyclobutyl or cyclopropyl Substitution;

X each independently represents CH2, O or S.

Preferably, one or more Formula II compounds represented are selected from following formula II1 to II5 compound represented One or more, one or more formula III compounds represented are selected from following formula III1 to III14 compound represented It is one or more:

Wherein,

R11、R21Each independently represent the alkoxy, carbon atom that alkyl, carbon atom number that carbon atom number is 1-6 are 1-6 The alkenyloxy that the alkenyl or carbon atom number that number is 2-6 are 3-6;

R31Indicate that carbon atom number is the alkyl of 1-6.

The initial orientation direction of above-mentioned liquid crystal molecule length direction, is determined by material or technique, includes but is not limited to rub It wipes the aligning film material of orientation, the aligning film material of light orientation, need the other aligned of alignment films.

Beneficial effects of the present invention are as follows:

Compared with prior art, the transmitance of liquid crystal display device provided by the invention light with higher makes more Backlight penetrating LCD device part makes liquid crystal display device brightness with higher.Alternatively, being used because of the raising of transmitance Less backlight can achieve brightness same as the prior art, and less backlight means lower electrical source consumption.Namely Say liquid crystal display device provided by the invention brightness with higher or there is energy saving.

Detailed description of the invention

Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.

Fig. 1 shows the structural schematic diagram of the liquid crystal display panel provided in the embodiment of the present invention.

Fig. 2 shows the schematic diagrames of the inceptive direction of the length direction of the liquid crystal molecule provided in the embodiment of the present invention.

Fig. 3 shows the schematic illustration that the transmitance provided in the embodiment of the present invention improves.

Fig. 4 shows the improvement amplitude schematic diagram for the different location that the transmitance provided in the embodiment of the present invention improves.

Specific embodiment

In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.

In this specification, unless otherwise specified, percentage each means weight percent, and temperature is degree Celsius (DEG C), other The specific meaning and test condition of symbol are as follows:

The width of w expression gap electrode;

D indicates the electrode gap width between gap electrode;

φ indicates the angle in the length direction initial orientation direction of gap electrode length direction and liquid crystal molecule;

Cp indicates clearing point (DEG C), the test of DSC sizing technique;

Δ n indicates optical anisotropy, noFor the refractive index of ordinary light, neFor the refractive index of extraordinary ray, test condition is 25 ± 2 DEG C, 589nm, Abbe refractometer test;

Δ ε indicates dielectric anisotropy, Δ ε=ε, wherein εFor the dielectric constant for being parallel to molecular axis, εIt is vertical Directly in the dielectric constant of molecular axis, test condition is 25 ± 0.5 DEG C, 20 microns of parallel boxes, INSTEC:ALCT-IR1 test;

γ 1 indicates rotary viscosity (mPas), and test condition is 25 ± 0.5 DEG C, 20 microns of parallel boxes, INSTEC:ALCT- IR1 test;

Tr (%) expression transmitance, Tr (%)=100%* illuminated state (Vop) brightness/light-source brightness, test equipment DMS501, Test condition is 25 ± 0.5 DEG C, because of εThere are positive correlations with Tr, so can use ε when investigating transmitanceAs inspection target To accuse of.

Liquid crystal monomer structure of the embodiment of the present invention indicates with code, liquid crystal ring structure, end group, linking group code indicate Method see the table below 1, table 2.

Table 1: the correspondence code of ring structure

Table 2: the corresponding code of end group and the link group

Citing:

Below using following specific embodiments come the present invention will be described.Liquid-crystal composition provided in an embodiment of the present invention It can be used and produce the method that liquid-crystal compounds mixes, the method system for such as mixing different component at high temperature and being soluble in one another Standby, liquid-crystal composition provided in an embodiment of the present invention can also such as take heating according to other conventional preparation methods, ultrasonic wave, It is prepared by the modes such as suspension.The above method is conventional method unless otherwise instructed.The raw material of liquid-crystal composition is prepared as without especially Illustrate be gotten from open business.

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