JPS581774A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPS581774A JPS581774A JP9897081A JP9897081A JPS581774A JP S581774 A JPS581774 A JP S581774A JP 9897081 A JP9897081 A JP 9897081A JP 9897081 A JP9897081 A JP 9897081A JP S581774 A JPS581774 A JP S581774A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal material
- crystal display
- display device
- purified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Liquid Crystal Substances (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は液晶表示装置に関するものである。[Detailed description of the invention] The present invention relates to a liquid crystal display device.
テＮｉｌ、ＧＨＩＩ等の電界効果製液晶表示装置は、電
界のみで制御するものであり、この電界効果１１妓晶表
示装置は、使用する液晶材料が高抵抗であればある程消
費電力が少なく、また液晶の寿命も長いし、電極等の劣
化も少ないから、信ｌＩｔの同上、長寿命化、低消費電
力化を図るためには１．イオン性不純物の少ない純度の
高い液晶材料を用いることが必要である。Field-effect liquid crystal display devices such as TeNil and GHII are controlled only by electric fields, and the higher the resistance of the liquid crystal material used, the lower the power consumption. In addition, the lifespan of the liquid crystal is long, and there is little deterioration of electrodes, etc., so in order to achieve longer lifespan and lower power consumption, there are 1. It is necessary to use a highly pure liquid crystal material with few ionic impurities.
また、Ｄ８ＩＩＬ波蟲褒示ＩＩ置は、電流効果鳳であり
、＃１１蟲中にイオン性物質を添加したものであるが、
信頼性の同上、長寿命化、低消費電力化を図るためには
、液晶中に添加するイオン性物質の材質及び量を厳選す
る必要があり、従ってこの０８ｇ液晶表示装置において
も、液晶材料そのものとしてはイオン性不純物の少ない
純度の高いものを用いることが必要である。In addition, the D8IIL Hamushihoji II set is an electric current effect iron, which has an ionic substance added to #11 Mushi.
In order to improve reliability, extend life, and reduce power consumption, it is necessary to carefully select the material and amount of ionic substances added to the liquid crystal. Therefore, it is necessary to use a highly pure material with few ionic impurities.
一方、液晶表示装置に使用される液晶材曽は。On the other hand, liquid crystal materials used in liquid crystal display devices.
一般に、複数種類の液晶物質を混合したものが用いられ
ているが、この液晶材料は、 ｇｏ、”。Generally, a mixture of multiple types of liquid crystal materials is used, and this liquid crystal material is known as "go".
Ｎ０１− 、 ＮＯ，−、Ｃｊ−等のイオン性不純物の
いくつかを含んでいるためＸ：、この液晶材料をそのま
ま使用するのは好ましくない。Since it contains some ionic impurities such as N01-, NO,-, Cj-, etc., it is not preferable to use this liquid crystal material as it is.
そこで、従来は％Ｉ７Ｊ記液晶耐液晶材料ン交換樹脂で
精製してセル容器内に充填しているが。Therefore, conventionally, the liquid crystal resistant liquid crystal material described in %I7J has been purified with an exchange resin and filled into the cell container.
イオン交換樹脂による精製では十分にイオン性不純物を
除去することができないために、従来の液晶表示装置は
、信頼性の同上、長寿命化。Because purification using ion-exchange resins cannot sufficiently remove ionic impurities, conventional liquid crystal display devices are not as reliable and have a long lifespan.
低消費電力化が十分図られているとはいえなかった。It could not be said that sufficient efforts were made to reduce power consumption.
この発明は上記のような実情にかんがみてな、害れたも
のであって、その目的とするところは。In view of the above-mentioned circumstances, this invention is a detriment, and what is its purpose?
イオン交換樹脂で精製した液晶材料ｖｍいている従来の
液晶表示装置よりもさらに信頼性が高く、かつ長寿命で
消費電力も少ない液晶表示装置を提供することにある。It is an object of the present invention to provide a liquid crystal display device which is more reliable, has a longer life, and consumes less power than the conventional liquid crystal display device which uses a liquid crystal material purified with an ion exchange resin.
すなわち、この発明の液晶表示装置は、活性アルミナで
精製した液晶材料を用いたことを特徴とするものであり
、活性アルミナで精製した液晶材料はイオン性不純物を
ほとんど含まない高純度のものであるから、この発明の
液晶表示装置によれば信ｓｎの同上、長寿命化、低消費
電力化を図ることができる。That is, the liquid crystal display device of the present invention is characterized by using a liquid crystal material purified with activated alumina, and the liquid crystal material purified with activated alumina is of high purity containing almost no ionic impurities. Therefore, according to the liquid crystal display device of the present invention, it is possible to achieve long life and low power consumption.
以下、この発明の詳細な説明する。The present invention will be described in detail below.
まず、活性アルミナによる液晶材料の精製について説明
すると、この液晶材料の精製は、第１図に示すように活
性アルミナと精製すべき液晶材料とを混合して充分攪拌
し、液晶材料中のイオン性不純物を活性アルミナＣ′−
黴看専せた後。First, to explain the purification of liquid crystal material using activated alumina, as shown in Figure 1, activated alumina and the liquid crystal material to be purified are mixed and thoroughly stirred, and the ionic content in the liquid crystal material is Impurities are removed from activated alumina C'-
After taking care of the mold.
これをメツシュフィルタにより濾過する方法で行なわれ
る。なお、この液晶材料の精製は、セル容器内に液晶ｌ
ｉｔ％を注入する液晶注入装置の液晶槽Ｃ二残った奈刹
液晶材料を再精製する場合も適用される。This is done by filtering it with a mesh filter. In addition, the purification of this liquid crystal material is performed by placing the liquid crystal inside the cell container.
It is also applied to the case of repurifying the liquid crystal material remaining in the liquid crystal tank C2 of the liquid crystal injection device for injecting it%.
この実施例の液晶表示Ｖｉ置は、上記のようにして精製
した液晶材料を、一対の電極孤板をシール材を介して接
着してなるセル容器内に注入充填したものである。In the liquid crystal display device Vi of this example, the liquid crystal material purified as described above is injected and filled into a cell container formed by adhering a pair of electrode plates via a sealing material.
ただし、Ｄｓ型液晶表示装置の場合は、液晶中に動的散
乱効果を得るためのイオン性物質を添加する。そして、
ＤＳ臘液晶表示装置の場合は、精製された液晶材料中に
活性アルミナがわずかでも残存していると、液晶中に添
加したイオン性物質が活性アルミナに吸看されるから。However, in the case of a Ds type liquid crystal display device, an ionic substance is added to the liquid crystal to obtain a dynamic scattering effect. and,
In the case of a DS liquid crystal display device, if even a small amount of activated alumina remains in the purified liquid crystal material, the ionic substance added to the liquid crystal will be absorbed by the activated alumina.
ＤＢｇ液晶表示装置の場合は活性アルミナが全く残存し
ない液晶材料を用いることが必要である。従って、Ｄ８
！液晶表示ＶＩ置Ｃ；使用する液晶材料の精製に際して
は、活性アルミナの最小粒径を厳暑し、メツシュフィル
タによる濾過工程Ｃ：おいて活性アルミナが完全に除去
されるようにする。In the case of a DBg liquid crystal display, it is necessary to use a liquid crystal material in which no active alumina remains. Therefore, D8
! Liquid Crystal Display VI Place C: When refining the liquid crystal material used, the minimum particle size of activated alumina is heated to ensure that the activated alumina is completely removed in step C: of filtration using a mesh filter.
一方、ＴＮＪｉｌ、ＧＨ履等の電界効果型液晶表示警置
の場合は、液晶材料中に活性アルｔ１が残存していても
何ら間−はなく、逆にセル容器内に充填した液晶材料中
に活性アルミナが含まれていれば、電極基板の基板本体
（主にガラス板）や配向層（ポリイミド等）及びレール
材（エポキシ樹脂等）から遊離して液晶中Ｃ；溶は込む
イオン性不純物を活性アルミナに吸看させることができ
る。従って、電界効果型液晶表示ＳＺに使用する液晶材
料の精製に際しては、活性アルミナの粒径な厳暑する必
要はない、ただし、精製液晶材料中に粒径の大きな活性
アルミナがあるとセル容器内への注入ができなくなるか
ら、この大粒径の活性アルミナは濾過工程において除去
してやることが必要であ為が、これはメツシューフィル
タとしてセル容器の液晶充填間隙（一般にはｌＯμ程度
）よりも小径なメツシュのものを使用することで達成す
ることができる。なお、電界効果型液晶表示簑置におい
ては、Ｉｌｌ述したように活性アルミナを含有する液晶
材料を用いるのが望ましいから、活性アルミナで精製し
た液晶材料にさらに微細粒径の活性ルミナを添加してこ
れをセル容器内に充填してもよい。On the other hand, in the case of field-effect liquid crystal display devices such as TNJil and GH, there is no problem even if active Al-t1 remains in the liquid crystal material; on the contrary, there is no problem in the liquid crystal material filled in the cell container. If activated alumina is contained, it will be released from the electrode substrate body (mainly glass plate), alignment layer (polyimide, etc.), and rail material (epoxy resin, etc.) and cause C in the liquid crystal; It can be absorbed by activated alumina. Therefore, when refining the liquid crystal material used in the field-effect liquid crystal display SZ, there is no need to subject the particle size of activated alumina to extreme heat. However, if there is active alumina with large particle size in the purified liquid crystal material, This large-sized activated alumina must be removed during the filtration process, but it is necessary to remove this large-sized activated alumina in the filtration process. This can be achieved by using a mesh. In addition, in field-effect liquid crystal display cabinets, it is desirable to use a liquid crystal material containing activated alumina as described above, so activated lumina with a fine particle size is added to the liquid crystal material purified with activated alumina. This may be filled into a cell container.
第２図は液晶材料の精製過程における液晶材料と活性ア
ルミナとの接触時間にともなう液晶材料あ比抵抗の変化
を示したもので、活性アルミナで精製した液晶材料の最
大の比抵抗は１０キ１ＱａＩＬを越える高い値を示して
いる。これは液晶材料が高純度に精製されたことを示す
。Figure 2 shows the change in specific resistance of the liquid crystal material as the contact time between the liquid crystal material and activated alumina increases during the refining process of the liquid crystal material. It shows a high value exceeding . This indicates that the liquid crystal material has been purified to a high degree of purity.
第３図及び第４図は、活性アルミナで精整した液晶材料
を用いたＴＮＩ！液晶表液晶表示管柱と従来のＴＮｗ液
晶表示装置の特性と１比較して示したもので、第３図は
温度と消費電流との関係を示し、第４図は８０℃の恒温
槽内における電流増加率を示している。図中ムは活性ア
゛と電すで精製した液晶材料（ただし精製俊活性アルミ
ナを完全に除去したもの）Ｖ用いた液晶表示装置の特性
、Ｂはイオン交換樹脂で精製した液晶材料（ただし精畷
徒イオン交換樹脂を完全に除去したもの）を用いた液晶
表示装置の特性、Ｃは未着１１［晶は料を用いた液晶表
示装置の特性である。なお、前記各液晶表示装置はいず
れも同一のセル容器（電極基板の基板本体はガラス板、
水平配向膜はポリイミド、シール材はエポキシ樹脂）に
液晶材料を充填したものである。Figures 3 and 4 show TNI using liquid crystal material refined with activated alumina! This shows a comparison between the characteristics of the liquid crystal display tube column and a conventional TNw liquid crystal display device. Figure 3 shows the relationship between temperature and current consumption, and Figure 4 shows the relationship between temperature and current consumption. It shows the current increase rate. In the figure, the graph indicates the characteristics of a liquid crystal display device using activated alumina and a liquid crystal material (with purified highly activated alumina completely removed) V, and B is the liquid crystal material purified with an ion exchange resin (but with purified alumina completely removed). Characteristics of a liquid crystal display device using a material from which the ion exchange resin has been completely removed; Note that each of the liquid crystal display devices described above has the same cell container (the main body of the electrode substrate is a glass plate,
The horizontal alignment film is made of polyimide and the sealing material is epoxy resin) filled with liquid crystal material.
この第３図及び第４図からも分かるように。As can be seen from Figures 3 and 4.
活性アルミナで精製した液晶材料を用いているこの発明
の液晶表示装置は、イオン交換樹脂精製液晶材料を用い
た従来の液晶表示装置よりもさらに温度に対する消費電
流及び電流増加率が少なく、従ってＴＮＩＩ、ＧＨ型等
の電界効果製液晶表示装置においては、消費電力を節減
すると共に、液晶の寿命を長く維持し、さらには電極等
の劣化も防ぐことができる。また、ＤＢ＠液晶衰示ＶＩ
Ｒにおいても、この発明では活性アルミナで精製したイ
オン性不純物をほとんど含まない高純度の液晶材料を用
いているから、＊区内の液晶中に存在するイオン性物質
は材質及び量を厳暑して添加したイオン性物質だけとな
り、従ってＤ８１１液晶表示簑置においても信頼性の向
上、長寿命化、低消費電力化を図ることＹできる。The liquid crystal display device of the present invention using a liquid crystal material purified with activated alumina has lower current consumption and current increase rate with respect to temperature than a conventional liquid crystal display device using an ion exchange resin purified liquid crystal material, and therefore has a lower current consumption and a lower current increase rate with respect to temperature. In field effect liquid crystal display devices such as the GH type, power consumption can be reduced, the life of the liquid crystal can be maintained for a long time, and deterioration of electrodes and the like can be prevented. Also, DB@LCD Decay VI
In R, this invention uses a high-purity liquid crystal material that contains almost no ionic impurities and has been purified with activated alumina. Therefore, it is possible to improve reliability, extend life, and reduce power consumption even in the D811 liquid crystal display panel.
以上のように、この発明の液晶表示装置は、活性アルミ
ナで精製した液晶材料を用いたものであり、活性アルミ
ナで精製した液晶材料はイオン性不純物をほとんど含ま
ない高純闇のものであるから、この発明の液晶表示装置
は、イオン交換ｍ詣で精製した液晶材料を用いている従
来の液晶表示装置よりもさらに信頼性が高く、かつ長寿
命で消費電力も少ない。As described above, the liquid crystal display device of the present invention uses a liquid crystal material purified with activated alumina, and the liquid crystal material purified with activated alumina is highly pure and contains almost no ionic impurities. The liquid crystal display device of the present invention has higher reliability, longer life, and lower power consumption than conventional liquid crystal display devices that use liquid crystal materials purified by ion exchange.
１８１図は活性アルミナによる液晶材料の精製工程図、
第２図は液晶材料と活性アルミナとの接触時間Ｃ二とも
なう液晶材料の比抵抗の変化を示す図、第３図は温度と
消費電力との関係を示す図、第４図は電流増加率を示す
図である。
出−入代通人 弁理士 鈴 江 式 ｍ−く紀 Ｕ
（ＮＪ師１ＣFigure 181 is a diagram of the purification process of liquid crystal material using activated alumina.
Fig. 2 shows the change in specific resistance of the liquid crystal material with contact time C2 between the liquid crystal material and activated alumina, Fig. 3 shows the relationship between temperature and power consumption, and Fig. 4 shows the current increase rate. FIG. Patent attorney Suzue Shiki M-Kuki U (NJ Master 1C)
Claims (1)
とする液晶表示装置。A liquid crystal display device that uses a liquid crystal material purified with activated alumina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9897081A JPS581774A (en) | 1981-06-25 | 1981-06-25 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9897081A JPS581774A (en) | 1981-06-25 | 1981-06-25 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS581774A true JPS581774A (en) | 1983-01-07 |
| JPH032918B2 JPH032918B2 (en) | 1991-01-17 |
Family
ID=14233901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9897081A Granted JPS581774A (en) | 1981-06-25 | 1981-06-25 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581774A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487685A (en) * | 1987-09-29 | 1989-03-31 | Seimi Chem Kk | Production of liquid crystal composition of high resistivity |
| EP0603731A1 (en) * | 1992-12-16 | 1994-06-29 | Hitachi Chemical Company, Ltd. | Purification of liquid crystals and liquid crystal composition |
| JP2002194355A (en) * | 2000-12-26 | 2002-07-10 | Dainippon Ink & Chem Inc | Method for producing high performance purification agent |
| WO2009044600A1 (en) * | 2007-10-04 | 2009-04-09 | Nitto Denko Corporation | Coating liquid and polarizing film |
| WO2014162587A1 (en) | 2013-04-05 | 2014-10-09 | Dic株式会社 | Method for producing composition |
| WO2014162588A1 (en) | 2013-04-05 | 2014-10-09 | Dic株式会社 | Production method for compound |
| JP2019056069A (en) * | 2017-09-21 | 2019-04-11 | 日本ゼオン株式会社 | Polymerizable liquid crystal material, polymerizable liquid crystal composition, polymer, optical film, optical anisotropic substance, polarizing plate, antireflective film, display device, and production method for polymerizable liquid crystal composition |
-
1981
- 1981-06-25 JP JP9897081A patent/JPS581774A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487685A (en) * | 1987-09-29 | 1989-03-31 | Seimi Chem Kk | Production of liquid crystal composition of high resistivity |
| EP0603731A1 (en) * | 1992-12-16 | 1994-06-29 | Hitachi Chemical Company, Ltd. | Purification of liquid crystals and liquid crystal composition |
| JP2002194355A (en) * | 2000-12-26 | 2002-07-10 | Dainippon Ink & Chem Inc | Method for producing high performance purification agent |
| WO2009044600A1 (en) * | 2007-10-04 | 2009-04-09 | Nitto Denko Corporation | Coating liquid and polarizing film |
| WO2014162587A1 (en) | 2013-04-05 | 2014-10-09 | Dic株式会社 | Method for producing composition |
| WO2014162588A1 (en) | 2013-04-05 | 2014-10-09 | Dic株式会社 | Production method for compound |
| US9255055B2 (en) | 2013-04-05 | 2016-02-09 | Dic Corporation | Method for producing compound |
| US9441159B2 (en) | 2013-04-05 | 2016-09-13 | Dic Corporation | Method for producing composition |
| JP2019056069A (en) * | 2017-09-21 | 2019-04-11 | 日本ゼオン株式会社 | Polymerizable liquid crystal material, polymerizable liquid crystal composition, polymer, optical film, optical anisotropic substance, polarizing plate, antireflective film, display device, and production method for polymerizable liquid crystal composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032918B2 (en) | 1991-01-17 |
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