JPH10319402A - Orientation processing device of liquid crystal display device and method of orientation processing thereby - Google Patents
Orientation processing device of liquid crystal display device and method of orientation processing therebyInfo
- Publication number
- JPH10319402A JPH10319402A JP15018897A JP15018897A JPH10319402A JP H10319402 A JPH10319402 A JP H10319402A JP 15018897 A JP15018897 A JP 15018897A JP 15018897 A JP15018897 A JP 15018897A JP H10319402 A JPH10319402 A JP H10319402A
- Authority
- JP
- Japan
- Prior art keywords
- rubbing
- liquid crystal
- crystal display
- substrate
- rotary roller
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はラビング配向処理に
よる液晶表示素子の配向処理技術に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alignment processing technique for a liquid crystal display device by rubbing alignment processing.
【0002】[0002]
【従来の技術】液晶表示パネルを用いた液晶表示装置
は、従来の他の方式の表示装置と比べて低電圧駆動が可
能であること、LSI駆動に適していること、低消費電
力であること、薄型,軽量化が可能であること等から、
AV機器,OA機器を始めとする多くの電気機器製品に
使用されており、近年急速に表示容量の大画面化,高精
細度化が進んでおり、画像表示品位の向上が重要となっ
てきている。以下その一従来例について図面を参照しつ
つ説明する。2. Description of the Related Art A liquid crystal display device using a liquid crystal display panel can be driven at a lower voltage, is suitable for LSI driving, and has lower power consumption than conventional display devices of other types. Because it can be made thinner and lighter,
It is used in many electrical equipment products such as AV equipment and OA equipment, and in recent years the display capacity has been rapidly increased in size and definition has been advanced, and improvement in image display quality has become important. I have. One conventional example will be described below with reference to the drawings.
【0003】図3は一般的な液晶表示装置の一例を示す
断面図であり、その主要構成は、液晶表示素子10,プ
リント基板11を有する駆動回路部12,接続部13で
ある。そして、液晶表示素子10は第一の透明電極14
a,配向膜15aが形成された第一のガラス基板16
と、第二の透明電極14b,配向膜15bが形成された
第二のガラス基板17をラビング処理し、スペーサー1
8を介して導通材料を配合したシール材19で固定し、
これらの第一のガラス基板16,第二のガラス基板17
の間に液晶20を注入あるいは、滴下工法によって封入
して作成される。第一のガラス基板16,第二のガラス
基板17の厚みは約1ミリ、第一のガラス基板16,第
二のガラス基板17上には、保護シート21付きの偏光
板22が貼り付けられる。FIG. 3 is a cross-sectional view showing an example of a general liquid crystal display device. The main components of the liquid crystal display device are a liquid crystal display element 10, a driving circuit section 12 having a printed board 11, and a connection section 13. Then, the liquid crystal display element 10 is connected to the first transparent electrode 14.
a, first glass substrate 16 on which alignment film 15a is formed
Rubbing the second glass substrate 17 on which the second transparent electrode 14b and the alignment film 15b are formed,
8 and fixed with a sealing material 19 containing a conductive material,
These first glass substrate 16 and second glass substrate 17
The liquid crystal 20 is filled in between them or sealed by a dropping method. The first glass substrate 16 and the second glass substrate 17 have a thickness of about 1 mm, and a polarizing plate 22 with a protective sheet 21 is attached on the first glass substrate 16 and the second glass substrate 17.
【0004】このようにして製造される液晶表示素子1
0において、配向膜形成済み基板のラビング配向処理方
法が、画像表示品位に重大な影響を及ぼすものである。[0004] The liquid crystal display element 1 manufactured as described above.
In the case of No. 0, the rubbing alignment treatment method for the substrate on which the alignment film has been formed has a significant effect on image display quality.
【0005】従来は図4に示すようにラビング材1を巻
き付けた回転ローラ2を回転させながら配向膜表面を特
定の方向にラビング配向処理を行うのであるが、ステー
ジ3上に載置した配向膜形成済み基板4上には液晶表示
素子の透明電極パターン5および配向膜のパターンニン
グが形成されており、配向膜形成済み基板4上には若干
の段差が生じているものである。Conventionally, as shown in FIG. 4, a rubbing alignment process is performed on a surface of an alignment film in a specific direction while rotating a rotating roller 2 around which a rubbing material 1 is wound. The transparent electrode pattern 5 of the liquid crystal display element and the patterning of the alignment film are formed on the substrate 4 on which the alignment film has been formed.
【0006】[0006]
【発明が解決しようとする課題】従来のラビング配向処
理装置では配向膜形成済み基板4にはパターンニングの
有無によって段差があり、ラビング配向処理を行う場合
に、ラビング材1が配向膜形成済み基板4と強く接触す
る部分と弱く接触する部分とが生じてしまい、ラビング
材1の毛先の表面状態が異なってしまう。特に大量に連
続してラビング配向処理を行うと、その傾向はひどくな
り、ラビング材1の毛先の当たりの強弱によって、ラビ
ングの強度ムラが発生し、配向の強度が不均一で表示ム
ラを引き起こす結果となり、さらには画像表示品位の低
下を招き、歩留りを悪化させる要因となっていた。In the conventional rubbing alignment treatment apparatus, the substrate 4 on which the alignment film is formed has a step depending on the presence or absence of patterning. A portion that strongly contacts the portion 4 and a portion that contacts the portion 4 weakly occur, and the surface condition of the bristle tip of the rubbing material 1 differs. In particular, when a large amount of rubbing orientation treatment is performed continuously, the tendency becomes severe, and the strength of the rubbing material 1 at the tip of the rubbing causes unevenness in rubbing strength, resulting in uneven orientation strength and display unevenness. As a result, the image display quality is further reduced, and the yield is deteriorated.
【0007】本発明は前記の従来の問題を解決するもの
であり、ラビング配向処理によるラビング強度ムラを防
止し、画像表示品位の高い液晶表示素子を実現できる配
向処理装置とその方法を提供することを目的とする。An object of the present invention is to solve the above-mentioned conventional problems, and to provide an alignment processing apparatus and a method thereof capable of preventing rubbing intensity unevenness due to rubbing alignment processing and realizing a liquid crystal display element having high image display quality. With the goal.
【0008】[0008]
【課題を解決するための手段】本発明は、液晶表示素子
における配向膜形成済み基板をラビング配向処理する際
に、回転ローラもしくは、基板を設置したステージは回
転ローラの回転前後方向と回転ローラの長手方向とに移
動して、ラビング配向処理を行うものである。According to the present invention, when a rubbing alignment process is performed on a substrate on which an alignment film has been formed in a liquid crystal display device, a rotating roller or a stage on which the substrate is mounted is rotated in the front-rear direction of the rotating roller and the rotating roller. The rubbing orientation process is performed by moving the rubbing alignment process in the longitudinal direction.
【0009】この発明によれば、基板表面上に段差があ
っても、回転ローラもしくは基板を設置するステージが
揺動し、ラビング配向処理を行うことにより、ラビング
材と基板との接触の強弱が全体に分散され、ラビング材
の毛先表面状態が安定するため、大量に連続してラビン
グ配向処理を行う場合においても、ラビング強度の均一
な液晶表示素子が得られる。According to the present invention, even if there is a step on the surface of the substrate, the rotating roller or the stage on which the substrate is mounted swings, and the rubbing orientation treatment is performed, whereby the strength of the contact between the rubbing material and the substrate is reduced. Since the rubbing material is dispersed throughout the surface state of the rubbing material, the liquid crystal display element having a uniform rubbing strength can be obtained even when rubbing alignment treatment is continuously performed in a large amount.
【0010】[0010]
【発明の実施の形態】以下本発明の実施の形態について
図面を参照しつつ説明する。なお、図面中、前記図3お
よび図4の構成部分と共通する部分については同一符号
を用いて詳細な説明を省略するものとする。図1は本発
明の液晶表示素子をラビングする配向処理装置の構成を
示す外観図、図2は液晶表示素子をラビングする配向処
理装置の要部斜視図である。図1,図2において、1は
ラビング材で、2はラビング材1を巻き付けた回転ロー
ラ、3はステージで、4は配向膜形成済み基板で、これ
らより、液晶表示素子をラビングする配向処理装置が構
成されている。この処理装置はラビング強度ムラをなく
すために、回転ローラ2とステージ3は矢印Aに示すよ
うに互いに前後方向に移動自在で、さらにそれらが回転
ローラ2の長手方向へも矢印Bに示すように移動自在に
構成されている。すなわち、図2(a)に示す装置では
ステージ3が回転ローラ2の回転方向に対して前後方向
に矢印Aで示すように移動し、回転ローラ2が回転方向
に対して横方向つまり回転ローラ2の長手方向に揺動
し、図2(b)に示す装置では回転ローラ2が回転方向
に対し前後方向に移動しステージ3が横方向に揺動する
例を示している。Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals are used to designate portions common to the components shown in FIGS. 3 and 4 and detailed description is omitted. FIG. 1 is an external view showing a configuration of an alignment processing apparatus for rubbing a liquid crystal display element of the present invention, and FIG. 2 is a perspective view of a main part of the alignment processing apparatus for rubbing a liquid crystal display element. 1 and 2, reference numeral 1 denotes a rubbing material, 2 denotes a rotating roller around which the rubbing material 1 is wound, 3 denotes a stage, and 4 denotes a substrate on which an alignment film has been formed. Is configured. In this processing apparatus, in order to eliminate the rubbing strength unevenness, the rotating roller 2 and the stage 3 are movable in the front-rear direction as shown by the arrow A, and they are also moved in the longitudinal direction of the rotating roller 2 as shown by the arrow B. It is configured to be movable. That is, in the apparatus shown in FIG. 2A, the stage 3 moves in the front-rear direction with respect to the rotation direction of the rotary roller 2 as shown by an arrow A, and the rotary roller 2 is moved in a direction transverse to the rotational direction, that is, the rotary roller 2 is rotated. 2B shows an example in which the rotating roller 2 moves in the front-back direction with respect to the rotation direction and the stage 3 swings in the lateral direction in the apparatus shown in FIG.
【0011】このように構成することにより、ラビング
材1を巻き付けた回転ローラ2を回転させながら、回転
ローラ2もしくはステージ3のどちらかが回転前後方向
に移動を行い、さらに他方が回転横方向すなわち回転ロ
ーラ2の長手方向に揺動しながらラビング配向処理を行
うことが可能である。このように一方が揺動しながらラ
ビング配向処理を行うことにより、配向膜形成済み基板
4上に設けられた液晶表示素子の透明電極パターン5や
配向膜のパターン段差があっても、ラビング材1の毛先
は全体的に配向膜形成済み基板4上のパターンと接触す
るため、ラビング材1の毛先表面状態は安定し、ラビン
グ材1と配向膜形成済み基板4との接触の強弱が非常に
少なく、ラビング強度の均一な液晶表示素子となる。特
に配向膜形成済み基板4に液晶表示素子の透明電極パタ
ーン5が複数列形成されている場合には、揺動する幅は
少なくとも電極パターンの間隔以上は揺動するように設
定するため、配向膜形成済み基板4の電極パターン列に
とらわれず、広く応用が可能である。With this configuration, while rotating the rotating roller 2 around which the rubbing material 1 is wound, either the rotating roller 2 or the stage 3 moves in the front-rear direction, and the other moves in the rotation lateral direction, that is, The rubbing orientation treatment can be performed while swinging in the longitudinal direction of the rotating roller 2. By performing the rubbing alignment treatment while one of the substrates is oscillating in this manner, even if there is a transparent electrode pattern 5 of the liquid crystal display element provided on the substrate 4 on which the alignment film is formed or a pattern step of the alignment film, the rubbing material 1 Of the rubbing material 1 is stable, and the strength of the contact between the rubbing material 1 and the substrate 4 on which the alignment film is formed is extremely low. And a liquid crystal display element having a uniform rubbing strength. In particular, when a plurality of rows of the transparent electrode patterns 5 of the liquid crystal display element are formed on the substrate 4 on which the alignment film is formed, the swing width is set so as to swing at least at least the distance between the electrode patterns. The present invention can be widely applied irrespective of the electrode pattern row of the formed substrate 4.
【0012】次に、図1に示す液晶表示素子をラビング
する配向処理装置によって、図2に示す揺動を行った場
合と、図4に示す従来の実施例である揺動を行わない液
晶表示素子をラビングする配向処理装置について、配向
膜形成済み基板の連続処理枚数と液晶表示素子の電圧特
性の関係実験を行った結果について説明する。Next, the liquid crystal display device shown in FIG. 1 is used for rubbing the liquid crystal display device to perform the swaying shown in FIG. 2 and the conventional liquid crystal display shown in FIG. A description will be given of the results of an experiment on the relationship between the number of continuously processed substrates on which an alignment film is formed and the voltage characteristics of a liquid crystal display device, for an alignment treatment apparatus for rubbing an element.
【0013】試験内容としては、図1に示す液晶表示素
子をラビングする配向処理装置にて揺動を行った場合
と、図4に示す揺動を行うことができない従来の液晶表
示素子をラビングする配向処理装置において、配向膜形
成済み基板4を連続してラビング配向処理を行い、その
後、図3に示す一般的な液晶表示素子を、それぞれの装
置の連続処理枚数別に区分し、液晶表示素子10の作成
を行った。その液晶表示素子10に矩形波を印加し、液
晶表示素子の中央部と端部の輝度−電圧特性を測定し、
その電圧差結果をラビング配向処理装置における処理枚
数別電圧差結果表である表1により示す。The test contents include a case where the liquid crystal display device shown in FIG. 1 is rocked by an alignment treatment device and a case where the conventional liquid crystal display device which cannot be rocked shown in FIG. 4 is rubbed. In the alignment processing apparatus, the rubbing alignment processing is continuously performed on the substrate 4 on which the alignment film is formed, and then the general liquid crystal display elements shown in FIG. Was created. A rectangular wave is applied to the liquid crystal display element 10, and the luminance-voltage characteristics at the center and the end of the liquid crystal display element are measured.
The result of the voltage difference is shown in Table 1 which is a table of the voltage difference result by the number of processed sheets in the rubbing alignment treatment apparatus.
【0014】[0014]
【表1】 [Table 1]
【0015】表1から明らかなように本発明の実施の形
態を示したものは、連続処理枚数が多い場合において
も、液晶表示素子の中央部と端部との電圧差は小さく安
定しているのに対して、従来のものは連続処理枚数が多
くなるにつれ、電圧差も大きくなる結果となった。As is clear from Table 1, the embodiment of the present invention shows that the voltage difference between the center and the end of the liquid crystal display element is small and stable even when the number of continuous processing is large. On the other hand, in the conventional apparatus, the voltage difference increased as the number of continuously processed sheets increased.
【0016】この試験から明らかなように、液晶表示素
子をラビングする配向処理装置にて本発明のように回転
ローラの長手方向にも揺動を行った場合には、液晶表示
素子面内にてラビング強度ムラがなく、配向強度の均一
化を実現し、かつ連続処理枚数を多くすることが可能で
あることがわかる。As is clear from this test, when the orientation processing device for rubbing the liquid crystal display element also oscillates in the longitudinal direction of the rotating roller as in the present invention, the liquid crystal display element is rubbed in the plane. It can be seen that there is no rubbing strength unevenness, it is possible to achieve uniform orientation strength, and it is possible to increase the number of continuously processed sheets.
【0017】[0017]
【発明の効果】以上のように本発明によれば、液晶表示
素子における配向膜形成済み基板をラビング配向処理時
のラビング強度ムラを防止することが可能であり、歩留
りの向上、かつ大量に連続ラビング配向処理を可能と
し、飛躍的に生産性向上が行えるという有利な効果が得
られる。As described above, according to the present invention, it is possible to prevent the rubbing strength unevenness during the rubbing alignment treatment of the substrate on which the alignment film has been formed in the liquid crystal display element, thereby improving the yield and increasing the continuous mass. The rubbing orientation treatment is enabled, and the advantageous effect of dramatically improving productivity can be obtained.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の一実施の形態における液晶表示素子を
ラビングする配向処理装置の構成を示す外観図FIG. 1 is an external view illustrating a configuration of an alignment processing apparatus for rubbing a liquid crystal display element according to an embodiment of the present invention.
【図2】(a)本発明の一実施の形態における液晶表示
素子をラビングする配向処理装置の要部斜視図 (b)同他の実施の形態における液晶表示素子をラビン
グする配向処理装置の要部斜視図FIG. 2A is a perspective view of a main part of an alignment processing apparatus for rubbing a liquid crystal display element according to an embodiment of the present invention; FIG. 2B is a perspective view of an alignment processing apparatus for rubbing a liquid crystal display element according to another embodiment; Part perspective view
【図3】一般的な液晶表示装置の断面図FIG. 3 is a cross-sectional view of a general liquid crystal display device.
【図4】従来例における液晶表示素子をラビングする配
向処理装置の要部斜視図FIG. 4 is a perspective view of a main part of an alignment processing apparatus for rubbing a liquid crystal display element in a conventional example.
1 ラビング材 2 回転ローラ 3 ステージ 4 配向膜形成済み基板 5 透明電極パターン Reference Signs List 1 rubbing material 2 rotating roller 3 stage 4 substrate on which alignment film is formed 5 transparent electrode pattern
Claims (3)
材を巻き付けた回転ローラを回転させながら配向膜表面
を特定の方向にラビングする配向処理装置において、ラ
ビング材を巻き付けた回転ローラもしくは、基板を設置
したステージを回転ローラの回転前後方向と回転ローラ
の長手方向に移動自在に構成したことを特徴とする液晶
表示素子の配向処理装置。An orientation treatment apparatus for rubbing the surface of an alignment film in a specific direction while rotating a rotation roller around which a rubbing material is wound after forming an orientation film on a substrate, wherein the rotation roller around which the rubbing material is wound, An alignment processing apparatus for a liquid crystal display element, wherein a stage on which a substrate is placed is configured to be movable in a longitudinal direction of a rotating roller and a longitudinal direction of the rotating roller.
装置によって、回転ローラもしくは基板を設置したステ
ージを回転ローラの長手方向に揺動しながら、ラビング
配向処理をすることを特徴とする液晶表示素子の配向処
理方法。2. A liquid crystal display device comprising: a rubbing alignment process performed by a liquid crystal display device alignment processing apparatus according to claim 1 while swinging a stage on which a rotating roller or a substrate is mounted in a longitudinal direction of the rotating roller. Display element alignment treatment method.
方法において、基板に透明電極パターンが複数列形成さ
れている場合に、回転ローラもしくは基板を設置したス
テージの揺動幅を少なくとも透明電極パターンの間隔以
上に揺動してラビング配向処理をすることを特徴とする
液晶表示素子の配向処理方法。3. The method according to claim 2, wherein when a plurality of rows of transparent electrode patterns are formed on the substrate, the swing width of the rotary roller or the stage on which the substrate is mounted is at least set to the transparent electrode. A rubbing alignment process by oscillating the pattern more than a pattern interval.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15018897A JPH10319402A (en) | 1997-05-23 | 1997-05-23 | Orientation processing device of liquid crystal display device and method of orientation processing thereby |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15018897A JPH10319402A (en) | 1997-05-23 | 1997-05-23 | Orientation processing device of liquid crystal display device and method of orientation processing thereby |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10319402A true JPH10319402A (en) | 1998-12-04 |
Family
ID=15491446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15018897A Pending JPH10319402A (en) | 1997-05-23 | 1997-05-23 | Orientation processing device of liquid crystal display device and method of orientation processing thereby |
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Country | Link |
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JP (1) | JPH10319402A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010004064A (en) * | 1999-06-28 | 2001-01-15 | 김순택 | Rubbing apparatus used in LCD and method for rubbing the same |
KR20030037790A (en) * | 2001-11-05 | 2003-05-16 | 삼성전자주식회사 | Rubbing apparatus for manufacturing liquid crystal display device and method using the same |
US7218368B2 (en) | 2003-11-18 | 2007-05-15 | Nec Lcd Technologies, Ltd. | Rubbing roll orientation processor for liquid crystal display manufacturing |
CN105093702A (en) * | 2015-09-22 | 2015-11-25 | 京东方科技集团股份有限公司 | Friction device and using method thereof |
CN109799651A (en) * | 2019-03-14 | 2019-05-24 | 信利半导体有限公司 | A kind of the friction matching method and friction matching apparatus of display base plate |
-
1997
- 1997-05-23 JP JP15018897A patent/JPH10319402A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010004064A (en) * | 1999-06-28 | 2001-01-15 | 김순택 | Rubbing apparatus used in LCD and method for rubbing the same |
KR20030037790A (en) * | 2001-11-05 | 2003-05-16 | 삼성전자주식회사 | Rubbing apparatus for manufacturing liquid crystal display device and method using the same |
US7218368B2 (en) | 2003-11-18 | 2007-05-15 | Nec Lcd Technologies, Ltd. | Rubbing roll orientation processor for liquid crystal display manufacturing |
CN105093702A (en) * | 2015-09-22 | 2015-11-25 | 京东方科技集团股份有限公司 | Friction device and using method thereof |
CN109799651A (en) * | 2019-03-14 | 2019-05-24 | 信利半导体有限公司 | A kind of the friction matching method and friction matching apparatus of display base plate |
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