CN107815323B - A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic - Google Patents
A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic Download PDFInfo
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- CN107815323B CN107815323B CN201711138497.3A CN201711138497A CN107815323B CN 107815323 B CN107815323 B CN 107815323B CN 201711138497 A CN201711138497 A CN 201711138497A CN 107815323 B CN107815323 B CN 107815323B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 88
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 239000002216 antistatic agent Substances 0.000 claims abstract description 27
- 239000000654 additive Substances 0.000 claims description 25
- 230000000996 additive effect Effects 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 15
- 230000003068 static effect Effects 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000008033 biological extinction Effects 0.000 abstract description 7
- 206010047571 Visual impairment Diseases 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000126 substance Substances 0.000 description 8
- 238000007796 conventional method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Substances (AREA)
Abstract
The invention belongs to vehicle-mounted segment encode liquid crystal display fields, and in particular to a kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic.The present invention improves liquid crystal display antistatic performance by adding appropriate antistatic agent into liquid-crystal composition, and liquid-crystal composition is enable effectively to reduce resistivity, shortens electrostatic extinction time, and liquid crystal display caused by avoiding static discharge damages；Liquid-crystal composition provided by the invention is applied to the static discharge that can greatly reduce in vehicle-mounted segment encode liquid crystal display and generate in vehicle traveling process to damage caused by vehicle-mounted segment encode liquid crystal display, can also overcome simultaneously reunite caused by antistatic agent excessive addition and its caused by afterimage of image, image, which show, unequal shows bad problem.
Description
Technical field
The invention belongs to vehicle-mounted segment encode liquid crystal display fields, and in particular to a kind of liquid-crystal composition and its in vehicle-mounted section of antistatic
Application in code liquid crystal display.
Background technology
In microelectric technique highly developed today, electronic equipment is from electron tube, transistor to integrated circuit, with surprising
Speed develops towards highly integrated, micromation, low-power consumption, digitlization, intelligent direction.Especially nearly ten years, ultra-large
The rapid development of integrated circuit and computer technology so that circuit becomes more sensitive to various electromagnetic interferences.Segment encode liquid crystal
Show and shown since its is low in energy consumption, passive, be easy to driving, be widely used without the advantages that harm ray, has become at present vehicle-mounted
Equipment first choice display device.Display unit of the segment encode LCD MODULE as electronic equipment, also plays equivalent received antenna
Effect, is the coupling channel of electromagnetic energy, restricts the electromagnetic immunity of entire electronic equipment.
In many electromagnetic interference problems, electrostatic discharge problem more becomes advanced liquid crystal display device and is badly in need of the skill solved
Art problem.Static discharge is a kind of common near field electromagnetic Harm and control, and static discharge process is high voltage, highfield, instantaneous big
The rise time of current course, current waveform is smaller than 1ns.In recent years the study found that being generated with static discharge process
Strong electromagnetic radiation, referred to as static discharge electromagnetic pulse is the near field electromagnetic interference source of various communications and control system, due to it
Have the characteristics that bandwidth, peak value are big, occurrence frequency is high, it can be with nuclear electromagnetic pulse, thunder and lightning electricity to the extent of injury of electronic system
Magnetic field impulse is mentioned in the same breath.With the raising of electronic device integrated level, susceptibility is continuously increased, and harm caused by static discharge is got over
Come bigger.Harm caused by static discharge, in the microelectronics technology whole world, annual loss is up to tens billion of dollars.
In vehicle traveling process, since the dust in air will produce electrostatic with the phase mutual friction of vehicle body metal surface, separately
On the one hand, rubber tyre also will produce a large amount of free electrons with ground friction, since tire is the higher rubber of insulating properties, freely
Electrostatic can not be imported ground and onboard gathered by electronics, when static discharge phenomenon will occur to a certain extent for electrostatic accumulation,
Electric elements on automobile are caused to damage, the electromagnetic field radiation that especially static discharge generates can be to vehicle-mounted segment encode liquid crystal display
Screen, which interferes, even to be damaged.
Invention content
To solve the deficiencies in the prior art, the present invention provides a kind of liquid-crystal composition and its in the vehicle-mounted segment encode liquid of antistatic
Application in crystalline substance screen.
Technical solution of the present invention is as follows：
A kind of liquid-crystal composition of the present invention contains the following antistatic agent of a certain amount of structural formula：
The liquid-crystal composition also following compound component of the structural formula containing certain mass percent：
Further, structural formula is in the liquid-crystal compositionThe additive amount of antistatic agent be
100-500ppm。
Further, the mass percentage of the following compound component of structural formula is in the liquid-crystal composition：
35-55%；
10-20%；
1-5%；
5-10%；
5-10%；
5-10%；
5-10%；
5-10%.
Further, the mass percentage content of the following compound component of structural formula is in the liquid-crystal composition：
42%；
13%；
3%；
9%；
9%；
8%；
8%；
8%.
Technical solution of the present invention further includes liquid-crystal composition of the present invention in the vehicle-mounted segment encode liquid crystal display of antistatic
Using and using the vehicle-mounted segment encode liquid crystal display of antistatic prepared by liquid-crystal composition of the present invention.
The advantage of the invention is that：
The present invention is by adding structural formula in a liquid crystal compositionAntistatic agent, make liquid crystal
Composition can effectively reduce resistivity, shorten electrostatic extinction time；Liquid-crystal composition provided by the invention is applied to vehicle-mounted
The static discharge generated in vehicle traveling process can be greatly reduced in segment encode liquid crystal display to damage caused by vehicle-mounted segment encode liquid crystal display
It is bad, at the same can also overcome reunite caused by antistatic agent excessive addition and its caused by afterimage of image, image display is uneven
Deng the bad problem of display.
Specific implementation mode
With reference to embodiment, the following further describes the technical solution of the present invention, and however, it is not limited to this, every right
Technical solution of the present invention is modified or replaced equivalently, and without departing from the spirit of the technical scheme of the invention and range, should all be contained
It covers in protection scope of the present invention.Compound below in an example can be synthesized by well known method,
Or it is obtained by commercial sources.These synthetic technologys are conventional, and acquired each liquid-crystal compounds meets electrical type after tested
Compound standard.
Embodiment 1：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be 100-
500ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition；
35-55%；
10-20%；
1-5%；
5-10%；
5-10%；
5-10%；
5-10%；
5-10%.
Liquid crystal combination is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment
Object, the preparation of the liquid-crystal composition are to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension
Mode is mixed to prepare according to regulation ratio.
Embodiment 2：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be
100ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition：
42%；
13%；
3%；
9%；
9%；
8%；
8%；
8%.
Liquid crystal combination is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment
Object, the preparation of the liquid-crystal composition are to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension
Mode is mixed to prepare according to regulation ratio.
Embodiment 3：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be
200ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition：
38%；
17%；
3%；
9%；
9%；
8%；
8%；
8%.
Liquid crystal combination is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment
Object, the preparation of the liquid-crystal composition are to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension
Mode is mixed to prepare according to regulation ratio.
Embodiment 4：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be
300ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition：46%；
15%；
2%；
8%；
8%；
7%；
7%；
7%.
Liquid-crystal composition is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment,
The preparation of the liquid-crystal composition is to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension mode
It is mixed to prepare according to regulation ratio.
Embodiment 5：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be
400ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition：
50%；
14%；
4%；
7%；
7%；
6%；
6%；
6%.
Liquid crystal combination is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment
Object, the preparation of the liquid-crystal composition are to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension
Mode is mixed to prepare according to regulation ratio.
Embodiment 6：
Structural formula is in a kind of liquid-crystal composition of the present embodimentAntistatic agent additive amount be
500ppm；Also contain each chemical composition of mass percentage as follows in the present embodiment liquid-crystal composition：
54%；
18%；
1%；
6%；
6%；
5%；
5%；
5%.
Liquid crystal combination is prepared according to the proportioning of each compound additive amount and mass percentage as defined in above the present embodiment
Object, the preparation of the liquid-crystal composition are to be carried out according to the conventional method of this field, such as take heating, ultrasonic wave, suspension
Mode is mixed to prepare according to regulation ratio.
Comparative example one：
This comparative example is differed only in embodiment 2, and comparative example one does not add antistatic agent in being formulated.
Comparative example two：
This comparative example is differed only in embodiment 2, and structural formula is in comparative example twoAntistatic
Agent additive amount is 50ppm.
Comparative example three：
This comparative example is differed only in embodiment 2, and structural formula is in comparative example threeAntistatic
Agent additive amount is 600ppm.
Comparative example four：
This comparative example is differed only in embodiment 2, and structural formula is in comparative example fourAntistatic
Agent additive amount is 1000ppm.
In the VA boxes that box thickness is 4 μm, 10kV voltages are applied to the embodiment of the present invention 2,4,6 using electrostatic discharge simulation device
The resistivity for the liquid crystal display filled with liquid-crystal composition made from comparative example one, two, three, four and discharge time are tested,
The results are shown in Table 1：
Table 1：
| Antistatic agent additive amount/ppm | 0 | 50 | 100 | 300 | 500 | 600 | 1000 |
| Resistivity/1010Ωcm | 870 | 650 | 95 | 89 | 82 | 41 | 19 |
| Electrostatic extinction time/s | 230 | 170 | 21 | 20 | 18 | 9 | 2 |
It is bigger to can be seen that antistatic agent additive amount for the relationship of electrostatic extinction time and antistatic agent additive amount from table 1,
The resistivity of liquid crystal display is smaller, and electrostatic extinction time is shorter；Liquid crystal display after the addition 100ppm antistatic agents of the embodiment of the present invention 2
The resistivity that resistivity ratio comparative example one does not add the liquid crystal display of antistatic agent reduces 89%, and electrostatic extinction time shortens
91%, this explanation can reduce the resistivity of vehicle-mounted segment encode liquid crystal display using liquid-crystal composition provided by the invention so that automobile
The electrostatic occurred in driving process can avoid destruction of the static discharge to segment encode liquid crystal display with quick disappearance.
From table 1 it can also be seen that when antistatic agent additive amount is more than 500ppm, as comparative example three adds 600ppm, right
When ratio three adds 1000ppm, the resistivity of liquid crystal display has respectively reduced 95% and 98%, and electrostatic extinction time shortens 96%
With 99%.Although the additive amount for improving antistatic agent can be further reduced the resistivity of liquid crystal display, discharge time is reduced, liquid
It is excessive by liquid crystal display electric current when can cause static discharge that crystalline substance screen resistivity is too small, so that liquid crystal display afterimage of image is occurred, image is aobvious
Show the unequal bad problem of display；In addition, antistatic agent additive amount is excessive it also occur that reunion, can equally cause segment encode liquid crystal display
Show bad, the power consumption of raising segment encode liquid crystal display imaging.If the segment encode liquid crystal display because caused by antistatic agent additive amount is excessive
Showing bad problem to appear on automobile instrument segment display will judge that vehicle driving state has an impact to driver,
It even misleads, be easy to cause traffic accident.Therefore, the additive amount of antistatic agent is set in the model of 100-500ppm by the present invention
In enclosing, the anti-static effect of vehicle-mounted segment encode liquid crystal display can be both ensured, it is also ensured that as the vehicle-mounted of automobile instrument display screen
The normal display of segment encode liquid crystal display.
Claims (5)
1. a kind of liquid-crystal composition, it is characterised in that the liquid-crystal composition contain additive amount be 100-500ppm structural formula such as
Under antistatic agent：
The liquid-crystal composition also following compound component of the structural formula containing certain mass percent：
2. a kind of liquid-crystal composition according to claim 1, it is characterised in that structural formula is following in the liquid-crystal composition
The mass percentage of compound component is：
35-55%；
10-20%；
1-5%；
5-10%；
5-10%；
5-10%；
5-10%；
5-10%.
3. a kind of liquid-crystal composition according to claim 2, it is characterised in that structural formula is following in the liquid-crystal composition
The mass percentage content of compound component is：
42%；
13%；
3%；
9%；
9%；
8%；
8%；
8%.
4. application of any liquid-crystal composition in the vehicle-mounted segment encode liquid crystal display of antistatic in claim 1-3.
5. utilizing the vehicle-mounted segment encode liquid crystal display of antistatic prepared by any liquid-crystal composition in claim 1-3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138497.3A CN107815323B (en) | 2017-11-16 | 2017-11-16 | A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138497.3A CN107815323B (en) | 2017-11-16 | 2017-11-16 | A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic |
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| Publication Number | Publication Date |
|---|---|
| CN107815323A CN107815323A (en) | 2018-03-20 |
| CN107815323B true CN107815323B (en) | 2018-09-14 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW434310B (en) * | 1995-07-13 | 2001-05-16 | Merck Patent Gmbh | Liquid crystal composition |
| CN1264790C (en) * | 2002-11-28 | 2006-07-19 | 石家庄永生华清液晶有限公司 | Multicomponent ether compound, preparing process and liquid crystal combination thereof |
| CN104774622B (en) * | 2014-01-15 | 2018-01-26 | 江苏和成显示科技股份有限公司 | Negative liquid crystal composition and the display device comprising the liquid-crystal composition |
| CN106566563B (en) * | 2016-10-26 | 2019-08-16 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition |
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Denomination of invention: Liquid crystal composition and application thereof in anti-static vehicle-mounted segment code liquid crystal screen Effective date of registration: 20200414 Granted publication date: 20180914 Pledgee: Suihua water supply and drainage Co.,Ltd. Pledgor: HEILONGJIANG TIANYOUWEI ELECTRONIC Co.,Ltd. Registration number: Y2020230000002 |
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Address after: 152000 Economic Development Zone, Beilin District, Suihua City, Heilongjiang Province Patentee after: Heilongjiang tianyouwei Electronics Co.,Ltd. Address before: 152000 Economic Development Zone, Beilin District, Suihua City, Heilongjiang Province Patentee before: HEILONGJIANG TIANYOUWEI ELECTRONIC Co.,Ltd. |
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