Liquid-crystal material for displays

专利摘要:
A liquid crystal for use in liquid crystal display devices comprises at least one material from group 1 comprising:- at least one of the group 1 materials having n = 2, or 4; at least one material from group 2 comprising: together with an ester liquid crystal material. The ester forms between 10% and 90% (preferably between 30% and 70%) by weight of the total mixture and the group 2 material forms between 5% and 30% by weight of the total mixture. Examples of the esters have the general formula where R1, R2 represent alkyl or alkoxy groups, and and where R3, R4 represent alkyl groups. All alkyl and alkoxy end groups are unbranced.
公开号:SU1494870A3
申请号:SU792819202
申请日:1979-09-12
公开日:1989-07-15
发明作者:Питер Рэйнз Эдвард
申请人:Министр обороны；
IPC主号:

专利说明:

where p 2,4,6 or that 3, at least one compound of group 2:
1 z.Pof-ly, 1 tab.
one
The invention relates to the production of liquid crystal materials that can be used in

about
displays x related to the type of twisted nematic instrument.
31А9
The purpose of the invention is to increase the range of allowable viewing angles and increase the temperature range of the display, as well as the twist reversal.
The invention is illustrated by the following examples of the preparation of liquid crystal mixtures (the number of components in examples 1-39 is given in wt.% T,
Example 1
; pMoHo -cN
Z1I 1052
Example 2
15 15 10 10 50
Z1I 1052
Example 4
C2H5- (2Xo)
25
SzN70-0 - (
Z1I 1052
Example 5
v.2n5-AO)) - CN OXOV-CN
- /
with HvO / oXoy- N
Z1I 1052 Example 6,
ten .
ten
50
15 15 10
15 45
C2H540 9- OXO -CN
about
Z1I 1052
Example 7
C2H5CHO
Z1I J052
Example 8. C2H5- @)).
CjH o-XgMS), 0X0X0
15 10
10 15 45
30 10 15
45 15
15 10
Z1I 1052
45
Example 9,
Zll 1052
Example 10
C2H5- OXO) -CN
®- {§XCN СзН70- (о) - (о) -с
@KoKo) -CN
Zll 1052
Example 12

U94870
szO about -s-oHo -S5N ,,
ABOUT
X
X is important for example:
13 - C2H50-0-C-0
about
 about
1 - SzN70- (0
20
25
C5NiO- (0 -C-0-0-C5Ni
about
SbN1zO- o) -C- (b (o -C5H11
about
C7Hi50- (o) -C-0) -C5Hii o
Ci2H250- (jJ-0- (o) -C5Hn
about
15 15 10
C2H50 H n-O OXO -CN
Q
35 shuO- (2)) 5I11 o
СНзОЧО -С-0- 0 -С7Н15
40o
45
Example 20
CjH O- OHghCN
g - @ H; o) -cN
50 СНзО- (о) -С-0- (оХС5Н1 |.
about
Example 21
Coht
OVCN
five
55
C (iH9- (O)) - CN
SzN7oHoH2)
35 10 10 20
15 15 10
C2H5- (o -Q-oX2 5
С5НиЧ§ - -о-Х5) -С5н „о
СНЧ2Л -ол2 / о
C5Hii- o -c-o4o; about
Example 23,
@) - {o) -CN
CitH9- {o) - (o) -cN SchN70- (o) - (o) -s
C5Hn- (o)) - (o) -CN
C5Hu- o)
СНз -Ю) -С-0- О -С5Ни
about
C5Ni 2 - -0 @ L 5Ni
about
15 10 10
ten
ten
20
ABOUT
Examples 26 and 27.
CsHuXSH ®
C2H542MO -CN10
SzN70- @ N @ -SK10
CsH "- / H - oV / Oy-CN 10
25
about
sHnXoV -O-XgbCsHi, 35
Example 28,
) -c-o- (o; -C5H, 1 6
С5Ни (О) -С-0- @ -С5Н „

examples 29 and 30,
C, Hs- (O) - (O)
(O) - (O) -CN20
C5H „- 5) - (p) - @ - CK 10
rov
s
five
10 10
10 30 35.
10 10 10
30 AO
15 25 10
10 20
Examples 31-35.
40
X is respectively equal in the example:
31 - - сНз- 0 - - - о оСс5Ни .о
32-СзН70н (оХС-0- (о -С5Нг1
about
33-C5Hn- oVc-0 (o -C5Hn
BEHIND
 СЧН.оЧоУс-оЧо:
„C, (J-0 - (, 5
about
35
Examples 36 and 37.

C2H5- (O) -X2rCN (with 5Hu4wXoH®) -CN
(PKOVCK
SgNvChN
  40 41
O45
Example 38o The mixture is the same as
in example 36, but additionally contains C 15 having the formula
H; CH2-CH (CH3) -CH2-0- {O) - (O) -CN,
by reducing the amount of cyanobifekyl. Substance C 15 is injected to remove the curl reversal. Example 39
50
15 15
Cjhs
15
СЗНГС-ОХОКН С, Н,, 305 "
ten
in the examples, compound Z1I 1305 represents ester produced by Merck, which is a mixture of 2/3 h.
15 CHiO
 with 1/3 weight.h.
20
one
SbN1zO- 0 -C-0- {O C5Ni
about
25
thirty
35
0
five
0
five
The liquid crystal mixtures according to examples 1-38 are placed in a display cell formed by the front and rear glass plates with a distance of 7 µm. A polarizer is located in front of the front glass plate, the polarization axis of which is horizontal.
talnoy. When a zero voltage is applied to the cell, the light passes through the front polarizer, through the cell (in this case its polarization plane is rotated 90), through the rear polarizer to the reflector, from which it reflects back to the observer. When a voltage is applied between the two electrodes that overlaps the threshold value, the liquid crystal layer loses its rotational force. Thus, the light in this position does not reach the reflector and does not reflect back to the observer, who sees a dark display with one or more number of lines of the figure (10). The state of the CPSU (on) corresponds to the transmission of 10% of the maximum possible light and is denoted by and, o ( 0 °), i.e. 10% transmittance at the angle of incidence O o The OFF state (off) corresponds to 90% transmittance and is indicated as Ugg (45 °), i.e. 90% transmittance at an incidence angle of 45. For a unique UHSE display, it should be lower than Ugo (45) and yk / (higher than U (o (0 °) s) Since the ideal ratio of Chi (O) / Ugg (45) is 1 unattainable, the closer it is to the liquid crystal mixture to 1.
the better and larger the range of acceptable viewing angles. Another important characteristic is the variation of the test with temperature: 1 / U (li / RT). If there is a change in voltage over the temperature range DT from O to, and and is the average voltage, therefore, the smaller the ratio 1 f li (0 °),
and
above the temperature range of good display performance.
The prototype of the invention is a mixture of E7. which contains, wt.%.
51
25
sixteen
eight
E7 has the following characteristics; Ugo (45) 1.08
1.96 1.81
90 (0 °) 0-40 0.85
CpH2pfi
CqH2 (4.l4H
CsH2s + i4O /
and at least one ester from group 3:
RI- (O) -COO- (O) -RJ or RjCooXo)
where RI and RO are unbranched alkyls or C4-C4-apkoxy and Ke and R unbranched C H -alkyl (in the following ratio of components, wt.%:
Compound of group 2 10-24 Compound of group 3 40-70 Compound of group 1 Remaining 2, The material according to claim 1, in accordance with claim 1, so that
Characteristics of the mixtures in examples t-39 are given in the table.
As can be seen from the table, the liquid crystal mixture according to the invention has better characteristics as compared with E7, which makes it possible to use it in complex displays with better results.
F o rm ula invention
1. Liquid crystal display material based on cyanobiphenyls, characterized in that, in order to increase the range of allowable viewing angles and increase the temperature range of the display, it contains cyanobiphenyl from group 1:
25
nH-in + f
or
Stn
m liiiiti
thirty
where p 2,4,6 or m 3;
at least one compound from group 2
(trans isomer), where p 2;
(trans isomer), where q 5;
where g is 5.7;
Where
I
remove twist treatment he
additionally contains up to 0.5% of the substance of the formula
CH3-CH2-CH-CH7-OHg - (o) - (I CH3
Priority featured:
09/13/78 with R, and RC is a branched Cr-alkyl or C-C-alkyl, p 2,4,6, ha 3, S 5;
13c10.78 - with p 2 and g 5.

权利要求:
Claims (3)
[1]
Claim
15 1. A liquid crystal material for displays based on cyanobiphenyls, characterized in that, in order to increase the range of acceptable viewing angles and increase the temperature range of the display, it contains cyanobiphenyl from group 1:
25 C _n H _ln4 - @> - <O) -CN or
C _tn H _{2tt1 + 1} ⁰ 4§HOH © -CN
30 where η = 2,4,6 or m = 3; at least one compound from group 2 (trans isomer), where p = 2;
with _h n _21I - (n> - (p) - <o) -sys (trans isomer), where q = 5;
C _r H _{2r + 1} ^ H ^ C00- <O> ^ C, where r = 5.7;
C $ H _{2s + 1} - (o) - ~ (o) - @ FCN, and at least one ester FROM corpse - 45 ps 3:
8g (o) -COO- (o) -B _g or U ^ 00 / s > - (n) -1H>
where R <and Rg are unbranched Ct-Cf-jg alkyls or C, -C _fc alkoxy and R ₃ and Rg unbranched C ₃ H _t- alkyl (in the following ratio, wt.%:
The connection of the group The connection of the group The connection of the group 2. The material according to p.
so that in order to
[2]
2 10-24
[3]
3 40-70
1 rest
1, about t l and h a -.
where in = 5;
I withdrawal of twisting, it additionally contains up to 0.5% of a substance of the formula sn ₃ -sn ₂ -sn-sn ₂ -o / o> - (o ^ -cn СН ₃
Priority by signs:
09/13/78, when R ₁ and R _{e are} unbranched C ₆ -alkyl or C <-C ₆ -alkyl, η = 2,4,6, tn = 3, s = 5;
10.13.78 - at ρ = 2 and r = 5.
14
Example Melting point, ^fl C Illumination point (isotropic), ° C Viscosity, sST Birefringence,Dp Oh oh oh schwithA/ —S abouto o ' ABOUT aboutabout cmWithAaboutabout ABOUTABOUTABOUTABOUT abouto <t AABOUT1 s 20 ° C 0 ° C 1 -4 60 57 276 0.194 1,07 1.87 1, 75 0.57 254 55 265 0.188 1,0 1.78 1, 78 0.74 360 62 316 0.193 1.21 2.07 1, 71 0.67 460 64 311 0.191 Ϊ, 1 75 2.01 1, 71 0.67 5 -4 64 63 315 0.185 1,07 1.82 0.44 660 1,04 1.80 0.6 769 1.22 2.06 0.54 877 1.13 1.92 0.46 90.9 1,60 1 78 101.05 1.81 1 , 72 eleven -4 63 61 298 0.193 1.16 1.94 1 , 67 0.64 12 -10 63 64 1.12 1.90 1 70 0.60 thirteen68 601,07 1.76 1 , 64 0.36 1460 65 1.06 1.73 1 , 63 0.57 fifteen53 66 1.10 1.81 1 , 65 0.60 1663 66 1,11 1.87 1 , 63 0.35 1764 66 1,11 1.85 1 , 67 0.52 181.19 2.01 1 69 0.68 1962 48 2.00 1.73 1 , 73 0.53 20 -3 61 1.14 1.91 1 , 67 0.73 2161 37 1681.09 1.88 1 , 72 0.80 2274 40 186 0.188 1,04 1.82 1 75 0.50 2362 37 153 0.192 1.06 1.77 1 , 67 0.68 24 -8 64 45 198 0.182 1,07 1.82 1 70 0.49 25 -12 61 1.12 1.87 1 , 67 0.49 26 -6 65 47 214 0.163 1.30 2.12 1 , 63 0.62 27. -2 55 1.36 2.24 1 , 65 0.62 28 -2 60 41 163 0.148 1.43 2,31 1 , 62 0.64 29th -4 63 43 168 0.172 1,08 1.81 1 , 68 0.46 thirty57 0.172 1,02 1.73 1 70 0.56 3161 1,03 1.74 1 69 0.46 32 -10 59 46 178 0.171 1,03 1.70 1 , 65 0.55 3363 1,08 1.81 1 , 68 * 3460 1.01 1.70 1 , 68 0.62 3559 1.13 1.87 1 , 65 ** 36 -eleven 62 45 178 0.173 1,03 1.73 1 , 68 0.49 37 -eleven 66 46 185 0.174 1,08 1.83 1 69 0.58 381.05 1.80 1 , 71 0.56 39 -3 55 28 122 0.152 1,08 1.83 1 69 0.77
ω о б-г * At * - 0 ° С
When Yu’So

类似技术:

---

公开号 | 公开日 | 专利标题

---

SU1494870A3|1989-07-15|Liquid-crystal material for displays

---

CN104371745B|2017-03-29|A kind of liquid-crystal composition

---

EP0582656B1|1999-04-07|Crystalline light modulating device and material

---

Coates1995|Polymer-dispersed liquid crystals

---

KR950702041A|1995-05-17|Display element and electronic apparatus

---

JP2700006B2|1998-01-19|Liquid crystal display device

---

US4634229A|1987-01-06|Liquid crystal display

---

KR100257886B1|2000-06-01|Polymer liquid crystal

---

KR920004895B1|1992-06-22|Liquid crystal display

---

CN102010718B|2013-07-17|Nematic liquid crystal composition and application thereof in 3D light valve display

---

KR100257892B1|2000-06-01|Liquid crystal light shutter

---

KR930005336B1|1993-06-17|Liquid crystal display

---

KR100320157B1|2002-09-26|Chiral nematic liquid crystal composition and devices comprising the same

---

US6366330B1|2002-04-02|Cholesteric liquid crystal display that prevents image sticking

---

JP2853068B2|1999-02-03|Manufacturing method of viewing angle compensator for liquid crystal display device

---

EP1329748A3|2005-02-02|Optically anisotropic film

---

US5491001A|1996-02-13|Method for producing viewing angle compensator for liquid crystal display

---

KR100270010B1|2000-11-01|Active matrix liquid crystal display and liquid crystal structure therefor

---

CN101928569B|2013-07-10|Liquid crystal composition and liquid crystal display element having same

---

CN108690639A|2018-10-23|A kind of liquid-crystal composition and its application

---

JPH08502837A|1996-03-26|Multi-stable chiral nematic display

---

EP0028519B1|1984-02-08|Liquid crystal compositions for multiplexed displays

---

GB2028363A|1980-03-05|Liquid crystal composition

---

GB2077286A|1981-12-16|Nematic liquid crystal materials for display devices

---

EP0176039B1|1991-06-05|Liquid crystal composition

同族专利:

---

公开号 | 公开日

---

HK17686A|1986-03-21|

---

US4462924A|1984-07-31|

---

SG64485G|1989-09-29|

---

MY8700230A|1987-12-31|

---

CA1139091A|1983-01-11|

---

EP0008956A1|1980-03-19|

---

DE2966302D1|1983-11-17|

---

EP0008956B1|1983-10-12|

---

DD146059A5|1981-01-21|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US4011173A|1972-08-03|1977-03-08|Merck Patent Gesellschaft Mit Beschrankter Haftung|Modified nematic mixtures with positive dielectric anisotropy|

---

GB1452826A|1973-10-17|1976-10-20|Secr Defence|Liquid crystal compositions|

---

US4137192A|1974-01-25|1979-01-30|Canon Kabushiki Kaisha|Liquid crystalline composition|

---

US4147651A|1974-09-03|1979-04-03|Beckman Instruments, Inc.|Biphenyl based liquid crystal compositions|

---

US4017416A|1974-10-11|1977-04-12|Chisso Corporation|P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for preparing same and liquid crystal compositions using same|

---

FR2288732B1|1974-10-22|1980-01-25|Merck Patent Gmbh|

---

JPS51107292A|1975-03-18|1976-09-22|Sanyo Electric Co| Nemateitsukuekisho |

---

GB1556994A|1975-09-03|1979-12-05|Secr Defence|Optically active cyanobiphenyl compounds and liquid crystal materials and devices containing them|

---

US4113647A|1976-08-13|1978-09-12|The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland|Liquid crystalline materials|

---

DE2636684C3|1976-08-14|1980-06-19|Merck Patent Gmbh, 6100 Darmstadt|Phenylcyclohexane derivatives and their use in liquid-crystalline dielectrics|

---

DE2745050C2|1976-10-06|1983-03-10|Sharp K.K., Osaka|Liquid crystal material|

---

DE2701591C3|1977-01-15|1979-12-20|Merck Patent Gmbh, 6100 Darmstadt|Hexahydroterphenyl derivatives and their use in liquid crystalline dielectrics|

---

US4120567A|1977-02-11|1978-10-17|Rca Corporation|Electro-optic device|

---

US4198130A|1977-06-03|1980-04-15|Hoffmann-La Roche Inc.|Liquid crystal mixtures|

---

US4337999A|1977-08-29|1982-07-06|Sharp Corporation|Fluorescent liquid crystal display compositions and devices|

---

US4253740A|1977-09-12|1981-03-03|The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland|Liquid crystal materials and devices containing them|

---

GB2009219B|1977-11-02|1982-04-28|Secr Defence|Liquid ctystal material mixtures and devices incorporating such mixtures|

---

JPS6332835B2|1977-12-16|1988-07-01|Hitachi Seisakusho Kk|

---

JPS54121286A|1978-03-14|1979-09-20|Asahi Glass Co Ltd|Liquid crystal composition|

---

DD137597A1|1978-07-06|1979-09-12|Deutscher Hans Joachim|NEMATIC CRYSTALLINE-LIQUID SUBSTANCES|

---

DE2832112C2|1978-07-21|1985-06-05|Merck Patent Gmbh, 6100 Darmstadt|Liquid crystalline dielectric|

---

JPS562370A|1979-06-19|1981-01-12|Mitsubishi Electric Corp|Nematic liquid crystal composition|

---

JPS562371A|1979-06-19|1981-01-12|Mitsubishi Electric Corp|Nematic liquid crystal composition|

---

US4309304A|1979-11-01|1982-01-05|Exxon Research & Engineering Co.|Liquid crystal compositions for multiplexed displays|

---

JPS56118481A|1980-02-25|1981-09-17|Mitsubishi Electric Corp|Nematic liquid crystal composition|

---

DE3023989C2|1980-06-26|1988-02-25|Merck Patent Gmbh, 6100 Darmstadt, De|

---

GB2080820B|1980-06-27|1984-07-11|Secr Defence|Liquid crystal composition containing a cyanobiphenyl and a phenyl benzoate|FR2484435B1|1980-06-17|1984-02-17|Grebenkin Mikhail|

---

DE3266741D1|1981-03-13|1985-11-14|Secr Defence Brit|Liquid crystal compositions|

---

JPS6126980B2|1982-02-15|1986-06-23|Kanto Kagaku Kk|

---

DE3364938D1|1982-07-28|1986-09-04|Hoffmann La Roche|Tetra- and pentacyclic monoesters|

---

GB2135804A|1982-11-17|1984-09-05|Philips Electronic Associated|Alpha numeric display device and visual display arrangement employing such display devices|

---

WO1986004324A1|1985-01-22|1986-07-31|MERCK Patent Gesellschaft mit beschränkter Haftung|Smectic a liquid crystal compositions|

---

GB8515510D0|1985-06-19|1985-07-24|Secr Defence|Thermochromic liquid crystal materials|

---

JPS6248790A|1985-08-12|1987-03-03|Gen Electric Co Plc|Thermal image forming apparatus|

---

GB8608114D0|1986-04-03|1986-05-08|Secr Defence|Smectic liquid crystal devices|

---

GB8608115D0|1986-04-03|1986-05-08|Secr Defence|Smectic liquid crystal devices|

---

JPS6351494A|1986-08-19|1988-03-04|Fuji Photo Film Co Ltd|Liquid crystal optical element|

---

JP2627629B2|1987-12-07|1997-07-09|チッソ株式会社|Liquid crystal composition|

---

US4844836A|1988-11-23|1989-07-04|Adeka Argus Chemical Co., Ltd.|Optically active cyanobiphenyl compound|

---

JP2526406B2|1993-11-30|1996-08-21|工業技術院長|Electrorheological fluid|

---

US20080207254A1|2007-02-27|2008-08-28|Pierce Paul M|Multimodal Adaptive User Interface for a Portable Electronic Device|

---

US20080204417A1|2007-02-27|2008-08-28|Pierce Paul M|Multimodal Adaptive User Interface for a Portable Electronic Device|

---

US20080204463A1|2007-02-27|2008-08-28|Adam Cybart|Adaptable User Interface and Mechanism for a Title Portable Electronic Device|

---

US8902152B2|2007-04-30|2014-12-02|Motorola Mobility Llc|Dual sided electrophoretic display|

---

US20080291169A1|2007-05-21|2008-11-27|Brenner David S|Multimodal Adaptive User Interface for a Portable Electronic Device|

---

US20080309589A1|2007-06-13|2008-12-18|Morales Joseph M|Segmented Electroluminescent Device for Morphing User Interface|

---

US9122092B2|2007-06-22|2015-09-01|Google Technology Holdings LLC|Colored morphing apparatus for an electronic device|

---

US20090042619A1|2007-08-10|2009-02-12|Pierce Paul M|Electronic Device with Morphing User Interface|

---

US8077154B2|2007-08-13|2011-12-13|Motorola Mobility, Inc.|Electrically non-interfering printing for electronic devices having capacitive touch sensors|

---

US8139195B2|2007-12-19|2012-03-20|Motorola Mobility, Inc.|Field effect mode electro-optical device having a quasi-random photospacer arrangement|

---

US8059232B2|2008-02-08|2011-11-15|Motorola Mobility, Inc.|Electronic device and LC shutter for polarization-sensitive switching between transparent and diffusive states|

---

TWI490321B|2013-08-30|2015-07-01|Chunghwa Picture Tubes Ltd|Liquid crystal composition|

法律状态:

优先权:

---

申请号 | 申请日 | 专利标题

---

GB7836595|1978-09-13|

---

GB7840580|1978-10-13|

---