JP2781493B2 - LCD substrate - Google Patents
LCD substrateInfo
- Publication number
- JP2781493B2 JP2781493B2 JP4126007A JP12600792A JP2781493B2 JP 2781493 B2 JP2781493 B2 JP 2781493B2 JP 4126007 A JP4126007 A JP 4126007A JP 12600792 A JP12600792 A JP 12600792A JP 2781493 B2 JP2781493 B2 JP 2781493B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- substrate
- display element
- view
- 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.)
- Expired - Fee Related
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電界印加や温度変化な
どによって光学的性質が変化する液晶を用いた液晶表示
素子を構成する液晶表示素子用基板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate for a liquid crystal display device which constitutes a liquid crystal display device using a liquid crystal whose optical properties change due to an electric field applied or a change in temperature.
【０００２】[0002]
【従来の技術】図６は、従来の液晶表示素子用基板の一
例を示す平面図、正面図および側面図である。液晶表示
素子用基板５１は、ガラスなどの透光性基板の表面に、
ＳｉＯなどの無機配向膜やポリイミドなどの有機配向膜
が成膜されおり、液晶表示素子を組立てる前のラビング
工程において、配向膜の表面をガーゼ、フェルト、ラバ
ー、刷毛などのラビング部材を一定方向に擦ることによ
って、液晶分子を所定方向に配列させるための配向処理
が行われる。2. Description of the Related Art FIG. 6 is a plan view, a front view and a side view showing an example of a conventional liquid crystal display element substrate. The liquid crystal display element substrate 51 is formed on the surface of a light-transmitting substrate such as glass.
An inorganic alignment film such as SiO or an organic alignment film such as polyimide is formed.In the rubbing process before assembling the liquid crystal display element, the surface of the alignment film is moved in a certain direction by rubbing members such as gauze, felt, rubber, and brush. By rubbing, an alignment process for aligning liquid crystal molecules in a predetermined direction is performed.
【０００３】液晶表示素子用基板５１の全体の形状は、
正方形や長方形などの方形状に形成され、その端面５７
および角部５２，５３，５４は滑らかな面取り処理が施
されており、基板５１の姿勢を明確かつ迅速に判断する
ために、４つの角部のうちの１つの角部５５が端面に対
して略４５度の角度となるように、たとえば端面での長
さ５ｍｍ×５ｍｍ程度に直線状に切断され、表面と切断
面との稜線が鋭く形成されている。The overall shape of the liquid crystal display element substrate 51 is as follows:
It is formed in a square shape such as a square or a rectangle, and its end face 57
The corners 52, 53, and 54 are smooth-chamfered, and one of the four corners 55 is positioned with respect to the end face to determine the posture of the substrate 51 clearly and quickly. It is cut linearly to an angle of about 45 degrees, for example, with a length of about 5 mm × 5 mm at the end face, and a sharp ridge line is formed between the surface and the cut face.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
液晶表示素子用基板５１は、ラビングなどの配向処理の
際、角部５５を起点としたラビングスジなどの欠陥が発
生することが多く、このような液晶表示素子用基板５１
を用いて液晶表示素子を組立てると表示ムラを生じ、液
晶表示素子の製造歩留りを低下させるという課題があ
る。However, the conventional substrate 51 for a liquid crystal display element often has defects such as rubbing streaks starting from the corners 55 during alignment treatment such as rubbing. Liquid crystal display element substrate 51
When a liquid crystal display element is assembled by using the method described above, there is a problem that display unevenness occurs and the production yield of the liquid crystal display element is reduced.
【０００５】本発明の目的は、前述した課題を解決する
ため、ラビングなどの配向処理の際にラビングスジの発
生を防ぐことができる液晶表示素子用基板を提供するこ
とである。An object of the present invention is to provide a substrate for a liquid crystal display element which can prevent occurrence of rubbing streaks during an alignment treatment such as rubbing in order to solve the above-mentioned problems.
【０００６】[0006]
【課題を解決するための手段】本発明は、液晶表示素子
を組立てる際に用いる方形状に形成された透光性の液晶
表示素子用基板において、前記液晶表示素子用基板の基
板表面から見たすべての角部およびすべての端面が滑ら
かな曲面で形成されていることを特徴とする液晶表示素
子用基板である。また本発明は、すべての前記角部のう
ちの１つの角部の曲率半径が、他の角部の曲率半径より
も大きいことを特徴とする。According to the present invention, there is provided a light-transmitting liquid crystal display element substrate formed in a rectangular shape used for assembling a liquid crystal display element, as viewed from the substrate surface of the liquid crystal display element substrate. A liquid crystal display element substrate, wherein all corners and all end faces are formed with smooth curved surfaces. Further, the present invention is characterized in that one of the corners has a radius of curvature larger than that of the other corners.
【０００７】[0007]
【作用】本発明に従えば、方形状に形成された透光性の
液晶表示素子用基板の基板表面から見たすべての角部お
よびすべての端面が滑らかな曲面で形成されていること
によって、基板表面とラビング部材との接触圧分布が滑
らかになり、直線状に切断された角部に形成された鋭い
稜線を起点とするラビングスジなどの欠陥が発生しなく
なる。また本発明に従えば、すべての角部のうちの１つ
の角部の曲率半径が他の角部の曲率半径より大きいこと
によって、基板表面とラビング部材との接触圧分布が滑
らかになり、直線状に切断された角部に形成された鋭い
稜線を起点とするラビングスジなどの欠陥が発生しなく
なるとともに、基板の姿勢が明確かつ迅速に判断でき
る。According to the present invention, all the corners and all the end faces of the rectangular translucent liquid crystal display element substrate as viewed from the substrate surface are formed as smooth curved surfaces. The contact pressure distribution between the substrate surface and the rubbing member becomes smooth, and defects such as rubbing streaks originating from sharp ridges formed at straight corners are eliminated. Further, according to the present invention, since the radius of curvature of one of the corners is larger than the radius of curvature of the other corner, the contact pressure distribution between the substrate surface and the rubbing member becomes smooth, and Defects such as rubbing streaks originating from sharp ridges formed at the corners cut in a shape are prevented from occurring, and the posture of the substrate can be determined clearly and quickly.
【０００８】[0008]
【実施例】図１は、本発明の一実施例である液晶表示素
子用基板１を示す平面図、正面図および側面図である。1 is a plan view, a front view and a side view showing a liquid crystal display element substrate 1 according to an embodiment of the present invention.
【０００９】液晶表示素子用基板１は、従来と同様に、
ガラスなどの透光性基板の表面にＳｉＯなどの無機配向
膜やポリイミドなどの有機配向膜が成膜されており、ラ
ビング工程においてその表面をガーゼ、フェルト、ラバ
ー、刷毛などのラビング部材を一定方向に擦することに
よって、液晶分子を所定方向に配列させるための配向処
理が行われる。The substrate 1 for a liquid crystal display element is, as in the prior art,
An inorganic alignment film such as SiO or an organic alignment film such as polyimide is formed on the surface of a light-transmitting substrate such as glass. In the rubbing step, the rubbing member such as gauze, felt, rubber, or brush is moved in a certain direction. By doing so, an alignment process for aligning the liquid crystal molecules in a predetermined direction is performed.
【００１０】液晶表示素子用基板１の全体の形状は、正
方形や長方形などの方形状に形成されており、その端面
７および角部２，３，４，５は滑らかな曲面となる面取
り処理が施されており、基板１の姿勢を明確かつ迅速に
判断するために、基板表面から見て１つの角部５の曲率
半径が他の角部２，３，４の曲率半径より大きく形成さ
れている。なお、角部２，３，４の曲率半径が約３ｍｍ
程度の場合は、基板姿勢の明瞭さと基板材料損失の観点
から、角部５の曲率半径は約８ｍｍ程度が好ましい。The entire shape of the substrate 1 for a liquid crystal display element is formed in a square shape such as a square or a rectangle, and the end face 7 and the corners 2, 3, 4, and 5 are subjected to a chamfering process to form a smooth curved surface. In order to determine the posture of the substrate 1 clearly and quickly, the radius of curvature of one corner 5 is formed larger than the radius of curvature of the other corners 2, 3, and 4 when viewed from the substrate surface. I have. The radius of curvature of the corners 2, 3, and 4 is about 3 mm
In this case, the radius of curvature of the corner 5 is preferably about 8 mm from the viewpoint of clarity of the posture of the substrate and loss of the material of the substrate.
【００１１】図２は、液晶表示素子用基板１に配向処理
を施すためのラビング装置を示したものであり、図２
（ａ）は平面図、図２（ｂ）は正面図、図２（ｃ）は側
面図である。FIG. 2 shows a rubbing device for subjecting the liquid crystal display element substrate 1 to an alignment treatment.
2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a side view.
【００１２】液晶表示素子用基板１は、移動テーブル２
６に設けられたラビングステージ２５に固定されるとと
もに、円筒状に形成され、かつ側面全体にガーゼなどの
ラビング部材が貼付けられたラビングローラ２１が、所
定の接触圧力で基板１と接触する。ラビングローラ２１
の回転軸２３は支柱２４で支えられ、図示しない駆動機
構による回転運動と併せて、移動テーブル２６が一定方
向に相対的に移動することによって、基板１の表面に配
向処理が施される。基板１の端面７および角部２，３，
４，５は滑らかな曲面で形成されているため、従来のよ
うなラビングスジは発生しなくなる。The liquid crystal display element substrate 1 includes a moving table 2
A rubbing roller 21, which is fixed to a rubbing stage 25 provided on the base plate 6 and has a cylindrical shape and has a rubbing member such as a gauze adhered to the entire side surface, comes into contact with the substrate 1 at a predetermined contact pressure. Rubbing roller 21
The rotation shaft 23 is supported by a support post 24, and the surface of the substrate 1 is subjected to an orientation process by the movement table 26 relatively moving in a certain direction in conjunction with the rotation by a driving mechanism (not shown). End face 7 of substrate 1 and corners 2 and 3
Since the surfaces 4 and 5 are formed with smooth curved surfaces, rubbing streaks unlike the conventional case do not occur.
【００１３】図３は、本発明に係る液晶表示素子用基板
１が用いられる液晶表示素子の一例を示した断面図であ
る。液晶表示素子用基板１は、ガラスなどの透光性基板
１０の表面にインジウム錫酸化物（ＩＴＯ）や酸化錫
（ＳｎＯ2）などからなる透明電極１１が形成され、さ
らにＳｉＯやポリイミドなどの配向膜１２が形成されて
いる。FIG. 3 is a cross-sectional view showing an example of a liquid crystal display device using the liquid crystal display device substrate 1 according to the present invention. In the substrate 1 for a liquid crystal display element, a transparent electrode 11 made of indium tin oxide (ITO) or tin oxide (SnO 2 ) is formed on the surface of a light-transmitting substrate 10 made of glass or the like. A film 12 is formed.
【００１４】配向処理された２枚の基板１は、所定の間
隙で互いに対向し、封止部材１４により液晶１３が封入
されることによって、液晶表示素子が組立てられる。な
お、以上の工程において、基板１の向き、姿勢が角部５
の位置によって明確に判断される。The two substrates 1 subjected to the alignment treatment face each other at a predetermined gap, and a liquid crystal 13 is sealed by a sealing member 14, whereby a liquid crystal display element is assembled. In the above steps, the orientation and posture of the substrate 1 are
Is clearly determined by the position of
【００１５】なお、以上の実施例において、透明電極１
１および配向膜１２が成膜された液晶表示素子用基板１
の配向処理の例を説明したが、図４の断面図に示すよう
に、表面に透明電極１１だけが成膜された透光性基板１
０、または図５の断面図に示すように透光性基板１０単
体に対する配向処理においても、本発明が適用される。In the above embodiment, the transparent electrode 1
Liquid crystal display element substrate 1 on which alignment film 1 and alignment film 12 are formed
Although the example of the alignment treatment was described, as shown in the cross-sectional view of FIG.
The present invention is also applied to the alignment process for the single translucent substrate 10 as shown in FIG.
【００１６】[0016]
【発明の効果】以上詳説したように、本発明によれば、
基板表面とラビング部材との接触圧分布が滑らかになっ
て、配向処理によるラビングスジなどの欠陥発生を防止
することができ、液晶表示素子の製造歩留りを向上させ
ることができる。また本発明によれば、さらに基板の姿
勢が明確かつ迅速に判断できる。As explained in detail above, according to the present invention,
The contact pressure distribution between the substrate surface and the rubbing member is smoothed, so that defects such as rubbing stripes due to the alignment treatment can be prevented, and the production yield of the liquid crystal display device can be improved. Further, according to the present invention, the posture of the substrate can be determined clearly and quickly.
【図１】本発明の一実施例である液晶表示素子用基板１
を示す平面図、正面図および側面図である。FIG. 1 is a liquid crystal display element substrate 1 according to one embodiment of the present invention.
3 is a plan view, a front view, and a side view showing
【図２】液晶表示素子用基板１に配向処理を施すための
ラビング装置を示したものであって、図２（ａ）は平面
図、図２（ｂ）は正面図、図２（ｃ）は側面図である。2 (a) is a plan view, FIG. 2 (b) is a front view, and FIG. 2 (c) shows a rubbing device for performing an alignment treatment on the liquid crystal display element substrate 1. FIG. Is a side view.
【図３】液晶表示素子用基板１が用いられる液晶表示素
子の一例を示した断面図である。FIG. 3 is a cross-sectional view showing an example of a liquid crystal display element using the liquid crystal display element substrate 1.
【図４】液晶表示素子用基板１の構成を示す断面図であ
る。FIG. 4 is a cross-sectional view showing a configuration of the liquid crystal display element substrate 1.
【図５】液晶表示素子用基板１の構成を示す断面図であ
る。FIG. 5 is a cross-sectional view illustrating a configuration of a liquid crystal display element substrate 1.
【図６】従来の液晶表示素子用基板の一例を示す平面
図、正面図および側面図である。FIG. 6 is a plan view, a front view, and a side view showing an example of a conventional liquid crystal display element substrate.
１ 液晶表示素子用基板 ２，３，４，５， 角部 １０ 透光性基板 １１ 透明電極 １２ 配向膜 １３ 液晶 １４ 封止部材 DESCRIPTION OF SYMBOLS 1 Liquid crystal display element board | substrate 2, 3, 4, 5, corner | corner 10 Translucent substrate 11 Transparent electrode 12 Alignment film 13 Liquid crystal 14 Sealing member
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G02F 1/1333 500 G02F 1/13 101Continuation of the front page (58) Field surveyed (Int.Cl. 6 , DB name) G02F 1/1333 500 G02F 1/13 101
Claims (2)
状に形成された透光性の液晶表示素子用基板において、 前記液晶表示素子用基板の基板表面から見たすべての角
部およびすべての端面が滑らかな曲面で形成されている
ことを特徴とする液晶表示素子用基板。1. A translucent liquid crystal display element substrate formed in a rectangular shape used when assembling a liquid crystal display element, wherein all corners and all end faces of the liquid crystal display element substrate are viewed from the substrate surface. Is formed with a smooth curved surface.
曲率半径が、他の角部の曲率半径よりも大きいことを特
徴とする請求項１記載の液晶表示素子用基板。2. The liquid crystal display device substrate according to claim 1, wherein a radius of curvature of one of the corners is larger than a radius of curvature of the other corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4126007A JP2781493B2 (en) | 1992-05-19 | 1992-05-19 | LCD substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4126007A JP2781493B2 (en) | 1992-05-19 | 1992-05-19 | LCD substrate |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5472598A Division JP3007869B2 (en) | 1998-03-06 | 1998-03-06 | Manufacturing method of liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05323302A JPH05323302A (en) | 1993-12-07 |
| JP2781493B2 true JP2781493B2 (en) | 1998-07-30 |
Family
ID=14924424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4126007A Expired - Fee Related JP2781493B2 (en) | 1992-05-19 | 1992-05-19 | LCD substrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2781493B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3016382B2 (en) * | 1997-11-04 | 2000-03-06 | 日本電気株式会社 | Rubbing apparatus and rubbing method |
| KR100920479B1 (en) * | 2002-12-26 | 2009-10-08 | 엘지디스플레이 주식회사 | liquid crystal display device |
| JP4737715B2 (en) * | 2005-08-08 | 2011-08-03 | 日本電気硝子株式会社 | Glass substrate and method for manufacturing glass substrate |
| KR101822078B1 (en) * | 2011-06-14 | 2018-01-26 | 삼성디스플레이 주식회사 | Display panel and manufacturing method thereof |
| WO2014010463A1 (en) * | 2012-07-09 | 2014-01-16 | シャープ株式会社 | Display device |
| CN114563889A (en) * | 2022-03-11 | 2022-05-31 | 业成科技（成都）有限公司 | Display module, preparation method thereof and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59104181A (en) * | 1982-12-07 | 1984-06-15 | Seiko Epson Corp | Transparent substrate |
| JPS6094629U (en) * | 1983-11-30 | 1985-06-27 | シャープ株式会社 | liquid crystal display element |
-
1992
- 1992-05-19 JP JP4126007A patent/JP2781493B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05323302A (en) | 1993-12-07 |
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