JPH06186515A - Liquid crystal display device and its production - Google Patents
Liquid crystal display device and its productionInfo
- Publication number
- JPH06186515A JPH06186515A JP33857992A JP33857992A JPH06186515A JP H06186515 A JPH06186515 A JP H06186515A JP 33857992 A JP33857992 A JP 33857992A JP 33857992 A JP33857992 A JP 33857992A JP H06186515 A JPH06186515 A JP H06186515A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- layer
- transparent substrates
- alignment film
- film
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は液晶表示装置およびその
製法に関する。さらに詳しくは、配向膜などの印刷によ
り設けられる印刷層の位置決めマークが該印刷層の近辺
に設けられている液晶表示装置およびその製法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device and its manufacturing method. More specifically, the present invention relates to a liquid crystal display device in which a positioning mark of a printing layer provided by printing an alignment film or the like is provided in the vicinity of the printing layer, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】図３に従来の液晶表示装置の配向膜やシ
ール剤層などが設けられた透明基板の平面図を示す。図
３において、たとえば透明なガラス基板21の表面にＩＴ
Ｏ膜などにより電極膜（図示せず）が設けられ、その端
部がガラス基板21の端部に電極端子22として導出され、
電極膜上には液晶の分子の配向を定めるたとえばポリイ
ミドなどからなる配向膜23が印刷により設けられ、さら
にその周囲には同様に印刷によりシール剤層24が設けら
れている。そののち、２枚の透明基板がシール剤層24に
より接着され、切断線26により切断されて外側の部分は
廃棄されることにより、表示パネルが形成され、その間
隙に液晶材料が充填される。この配向膜23やシール剤層
24の印刷はガラス基板21の端部、すなわち表示パネルの
切断線26より外部に電極膜と同時に設けられたＩＴＯ膜
または金属膜などからなるアライメントマーク25を基準
にして印刷版の位置合わせをして行われている。2. Description of the Related Art FIG. 3 is a plan view of a transparent substrate provided with an alignment film, a sealant layer, etc. of a conventional liquid crystal display device. In FIG. 3, for example, IT is formed on the surface of the transparent glass substrate 21.
An electrode film (not shown) is provided by an O film or the like, and its end portion is led out to the end portion of the glass substrate 21 as an electrode terminal 22,
An alignment film 23 made of, for example, polyimide, which determines the orientation of liquid crystal molecules, is provided on the electrode film by printing, and a sealant layer 24 is also provided around the alignment film 23 by printing. After that, the two transparent substrates are adhered by the sealant layer 24, cut by the cutting line 26, and the outer portion is discarded to form a display panel, and the gap is filled with the liquid crystal material. This alignment film 23 and sealant layer
The printing of 24 aligns the printing plate with reference to an alignment mark 25 made of an ITO film or a metal film provided at the same time as the electrode film at the end of the glass substrate 21, that is, outside the cutting line 26 of the display panel. Is being done.
【０００３】[0003]
【発明が解決しようとする課題】従来の液晶表示装置で
は、前述のように配向膜23やシール剤層24を印刷する際
に表示パネルより外の共通のアライメントマーク25を基
準にして印刷版の位置合わせを行うため、配向膜23やシ
ール剤層24と電極膜などとの相対的な位置関係が直接的
ではなく離れたアライメントマーク25を介して間接的に
決められ印刷されている。したがって印刷版の設計ミス
による寸法ミスや変形があっても、顕微鏡や投影器など
の精密な測定器を用い相互の位置関係を調べなければ配
向膜23やシール剤層24の電極膜などとの相対的な位置関
係が正しいか否かの判別ができない。また製造段階にお
いてアライメントマーク25が存在する部分が切り離され
てしまうため、製品検査の際の原因解析は困難である。In the conventional liquid crystal display device, as described above, when printing the alignment film 23 and the sealant layer 24, the printing plate is printed based on the common alignment mark 25 outside the display panel. In order to perform the alignment, the relative positional relationship between the alignment film 23 and the sealing agent layer 24 and the electrode film is not directly determined but indirectly determined through the separated alignment marks 25 and printed. Therefore, even if there is a dimensional error or deformation due to a design error of the printing plate, if the mutual positional relationship is not checked using a precise measuring device such as a microscope or a projector, the alignment film 23 and the electrode film of the sealant layer 24, etc. It is impossible to determine whether the relative positional relationship is correct. Further, since the portion where the alignment mark 25 is present is cut off at the manufacturing stage, it is difficult to analyze the cause at the time of product inspection.
【０００４】本発明はこのような状況に鑑み、印刷版の
位置合わせ作業および製品検査が簡易に、かつ、正確に
行なうことができる液晶表示装置およびその製法を提供
することを目的とする。In view of such circumstances, an object of the present invention is to provide a liquid crystal display device and a method of manufacturing the liquid crystal display device, in which the positioning work of the printing plate and the product inspection can be performed easily and accurately.
【０００５】[0005]
【課題を解決するための手段】本発明による液晶表示装
置は、電極膜が設けられた２枚の透明基板のそれぞれの
前記電極膜側に配向膜が印刷され、かつ、２枚の透明基
板の一方にシール剤層が印刷され、前記２枚の透明基板
がスペーサを介して前記シール剤層により接着され、該
２枚の透明基板の間隙に液晶材料が充填されてなる液晶
表示装置であって、前記配向膜および／またはシール剤
層が印刷される印刷層の周縁部の少なくとも一部に位置
決めマークが設けられてなることを特徴とする。In a liquid crystal display device according to the present invention, an alignment film is printed on each of the two transparent substrates provided with an electrode film on the side of the electrode film, and the two transparent substrates are provided. A liquid crystal display device in which a sealant layer is printed on one side, the two transparent substrates are adhered by the sealant layer via a spacer, and a gap between the two transparent substrates is filled with a liquid crystal material. A positioning mark is provided on at least a part of a peripheral portion of the printed layer on which the alignment film and / or the sealant layer is printed.
【０００６】また本発明による液晶表示装置の製法は電
極膜、配向膜がそれぞれ設けられた２枚の透明基板が一
方の透明基板に設けられたシール剤層を介して接着さ
れ、その間隙に液晶材料が充填された液晶表示装置の製
法であって、前記配向膜および／またはシール剤層をそ
れぞれ印刷する前のいずれかの工程で配向膜および／ま
たはシール剤層の周縁部の少なくとも一部に位置決めマ
ークを設け、該位置決めマークを基準にして前記配向膜
および／またはシール剤層を設けることを特徴とするも
のである。Further, in the method of manufacturing a liquid crystal display device according to the present invention, two transparent substrates each provided with an electrode film and an alignment film are adhered to each other via a sealant layer provided on one transparent substrate, and the liquid crystal is provided in the gap. A method for manufacturing a liquid crystal display device filled with a material, wherein at least a part of a peripheral portion of the alignment film and / or the sealant layer is formed in any step before printing the alignment film and / or the sealant layer. A positioning mark is provided, and the alignment film and / or the sealing agent layer is provided on the basis of the positioning mark.
【０００７】[0007]
【作用】本発明によれば表示パネル内に加工位置を示す
位置決めマークがつけられているので、電極膜などとの
相対的な位置関係が正確に把握でき、印刷版の設計ミス
や変形なども直ちに判明できる。また、製造段階で表示
パネルの外周部が切り離されたのちでも、位置決めマー
クが残るため、製品完成後も加工位置の精度を検査する
ことができる。According to the present invention, since the positioning mark indicating the processing position is provided in the display panel, the relative positional relationship with the electrode film or the like can be accurately grasped, and the design error or deformation of the printing plate can be prevented. You can find out immediately. Further, since the positioning mark remains even after the outer peripheral portion of the display panel is cut off at the manufacturing stage, the accuracy of the processing position can be inspected even after the product is completed.
【０００８】[0008]
【実施例】図１は本発明の一実施例である液晶表示装置
の表示パネルの透明基板の角部分を示す説明図、図２は
本発明の液晶表示装置に用いられる位置決めマークの他
の例を示す説明図である。1 is an explanatory view showing a corner portion of a transparent substrate of a display panel of a liquid crystal display device according to an embodiment of the present invention, and FIG. 2 is another example of a positioning mark used in the liquid crystal display device of the present invention. FIG.
【０００９】図１において、ガラスまたはプラスチック
などからなる透明基板１に、たとえばＩＴＯ膜などの透
明導電膜からなる電極膜のパターン（図示されていな
い）が形成され、さらにその上にたとえばポリイミド膜
などからなる配向膜３および配向膜３の周囲にたとえば
エポキシ樹脂などからなるシール剤層４が印刷により設
けられている。In FIG. 1, a pattern (not shown) of an electrode film made of a transparent conductive film such as an ITO film is formed on a transparent substrate 1 made of glass or plastic, and a polyimide film or the like is further formed thereon. An alignment film 3 made of and a sealant layer 4 made of, for example, an epoxy resin is provided around the alignment film 3 by printing.
【００１０】配向膜３は両透明基板１間に充填された液
晶層の分子の方向を決めるもので、またシール剤層４は
表示パネルを構成する透明基板１の周縁部に沿って設け
られ、重ね合わされた透明基板１を接着する役割を果た
すもので、共に表示パネルひいては電極膜との相対的位
置関係が重要となる。本発明はこの配向膜３およびシー
ル剤層４の角部に、それぞれカギ形状の位置決めマーク
５ａ、５ｂが形成されている。これらの位置決めマーク
５ａ、５ｂはたとえば電極膜と同じＩＴＯ膜などにより
電極膜と同時に形成されたり、薄膜トランジスタ（ＴＦ
Ｔ）などのメタル層、カラーマスクを設けるばあいのカ
ラーフィルター層、ブラックマスク層など、配向膜やシ
ール剤層を設ける工程の前に形成できるものであれば何
でもよい。この位置決めマークが設けられる場所は表示
パネルの有効表示領域ライン９の外側になるから、不透
明膜でも表示画像には影響しないからである。ただし、
電極膜を短絡しないように形成する必要がある。また、
この位置決めマークの形成は、電極膜やＴＦＴなどを形
成する際に同時に同じ材料で設けることが、工程数が増
えないため好ましいが、別の材料で特別に設けてもよ
い。The alignment film 3 determines the direction of the molecules of the liquid crystal layer filled between the transparent substrates 1, and the sealant layer 4 is provided along the peripheral edge of the transparent substrate 1 constituting the display panel. It plays a role of adhering the transparent substrates 1 that are overlapped with each other, and the relative positional relationship with the display panel and with the electrode film is important together. In the present invention, key-shaped positioning marks 5a and 5b are formed at the corners of the alignment film 3 and the sealant layer 4, respectively. These positioning marks 5a and 5b are formed at the same time as the electrode film by using the same ITO film as the electrode film, or the thin film transistor (TF).
Any metal layer such as T), a color filter layer when a color mask is provided, a black mask layer, or the like can be used as long as it can be formed before the step of providing the alignment film and the sealant layer. This is because the location where the positioning mark is provided is outside the effective display area line 9 of the display panel, so that even an opaque film does not affect the display image. However,
It is necessary to form the electrode film so as not to short circuit. Also,
It is preferable that the positioning mark is formed of the same material at the same time when the electrode film, the TFT, etc. are formed, because the number of steps is not increased, but another material may be specially formed.
【００１１】さらに、図１の実施例では長方形の表示パ
ネルの１つの角部のみを示しているが、他の１〜３カ所
の角部またはそのあいだにも同様に設けることができ
る。このばあい位置決めマーク５ａ、５ｂがカギ形状の
ばあいは、他の３つの角部に位置決めマークが形成され
ていなくても位置合わせはできるが、加工精度を高める
ためには他の１〜３カ所にも位置決めマークが形成され
ているのが好ましい。Further, although the embodiment of FIG. 1 shows only one corner of the rectangular display panel, it can be similarly provided at the other one to three corners or between them. In this case, when the positioning marks 5a and 5b are key-shaped, the positioning can be performed even if the positioning marks are not formed at the other three corners, but in order to improve the processing accuracy, the other 1 to 3 are used. Positioning marks are also preferably formed at the locations.
【００１２】つぎに前述の表示パネルの製法について説
明する。Next, a method for manufacturing the above-mentioned display panel will be described.
【００１３】まずたとえばガラス基板からなる透明基板
１にたとえばＩＴＯ膜からなる電極膜のパターンを形成
する。このＩＴＯ膜のパターニングの際、配向膜の位置
決めマーク５ａおよびシール剤層の位置決めマーク５ｂ
を形成するようにＩＴＯ膜を残す。つぎに配向膜の位置
決めマーク５ａを基準として印刷版の位置合わせを行
い、たとえばポリイミドからなる配向膜３を電極膜のパ
ターンを覆うようにして透明基板１上に形成する。カラ
ーマスクやブラックマスクその他のオーバーコートなど
が配向膜３の前またはあとに設けられることもある。つ
ぎに、たとえばエポキシ樹脂からなるシール剤層４をシ
ール剤層の位置決めマーク５ｂを基準として印刷版の位
置合わせを行って形成する。２枚の透明基板１のうち、
他方の透明基板１にはシール剤層４は設けられなく、上
下透明基板１の電極膜を連結する銀点印刷がされるが、
この銀点の位置決めマークも同様にそれ以前の工程で形
成されるのが好ましい。このあと２枚の透明基板１をス
ペーサを介して電極膜形成部が対向するように重ね合わ
せてシール剤層４により接着したのち、表示パネルを切
り出し、２枚の透明基板１の間隙に液晶材料を封入す
る。First, a pattern of an electrode film made of, for example, an ITO film is formed on the transparent substrate 1 made of, for example, a glass substrate. When patterning the ITO film, the alignment film positioning mark 5a and the sealant layer positioning mark 5b are formed.
The ITO film is left to form. Next, the printing plate is aligned with the alignment mark 5a of the alignment film as a reference, and the alignment film 3 made of, for example, polyimide is formed on the transparent substrate 1 so as to cover the pattern of the electrode film. A color mask, a black mask, or other overcoat may be provided before or after the alignment film 3. Next, the sealant layer 4 made of, for example, an epoxy resin is formed by aligning the printing plate with the positioning mark 5b of the sealant layer as a reference. Of the two transparent substrates 1,
The sealant layer 4 is not provided on the other transparent substrate 1 and silver dot printing for connecting the electrode films of the upper and lower transparent substrates 1 is performed.
This silver dot positioning mark is also preferably formed in a previous step. After that, the two transparent substrates 1 are superposed on each other via the spacers so that the electrode film forming portions face each other and adhered by the sealant layer 4, and then the display panel is cut out, and the liquid crystal material is placed in the gap between the two transparent substrates 1. Is enclosed.
【００１４】前述の製法ではシール剤層の位置決めマー
ク５ｂおよび配向膜の位置決めマーク５ａの双方を同時
に電極膜形成時に電極膜と同じ材料で形成した。しかし
シール剤層の位置決めマーク５ｂを配向膜３形成時に配
向膜３と同じ材料で形成してもよい。すなわち、印刷層
の位置決めマークはその印刷層の加工工程以前の工程で
何らかの材料により形成されておればよいのである。In the above-mentioned manufacturing method, both the positioning mark 5b of the sealant layer and the positioning mark 5a of the alignment film are simultaneously formed of the same material as the electrode film when forming the electrode film. However, the positioning mark 5b of the sealant layer may be formed of the same material as the alignment film 3 when forming the alignment film 3. That is, the positioning mark of the print layer may be formed of any material in the process before the process of processing the print layer.
【００１５】また前述の製法では印刷版の位置合わせを
行うばあいに表示パネル内の位置決めマーク５ａ、５ｂ
のみを基準としたが、表示パネル外の透明基板１上に従
来例で示したようなアライメントマークを形成し、位置
決めマーク５ａ、５ｂとアライメントマークの双方を基
準として位置合わせを行ってもよい。In the above-mentioned manufacturing method, the positioning marks 5a and 5b in the display panel are used when the printing plates are aligned.
Although only the reference mark is used as the reference, the alignment mark as shown in the conventional example may be formed on the transparent substrate 1 outside the display panel, and the alignment may be performed with reference to both the positioning marks 5a and 5b and the alignment mark.
【００１６】図１に示した実施例においては位置決めマ
ーク５ａ、５ｂはカギ形状である。しかし位置決めマー
クは印刷版の位置合わせの基準としての役割を果たせば
よいのであって、カギ形状に限定されない。図２にいろ
いろな形状の位置決めマーク７の例を示す。これはいず
れも印刷層８の隅の位置の基準となるものである。図２
（ａ）において位置決めマーク７は実施例と同じカギ形
状であるが、このばあい角部にＲが施されている。この
ような形状にすることにより、静電気破壊に対し有利に
なるという利点がある。図２（ｂ）に示された形状の位
置決めマーク７は互いに直交する２本の線分でありこれ
によって印刷層８の隅の位置が示されている。図２
（ｃ）に示された形状の位置決めマーク７は破線からな
るカギ形状または長方形状である。位置決めマーク７が
電導膜で電極膜の短絡を避けるばあいに効果がある。こ
のばあい、長方形状に形成すれば、内部に印刷層８が収
まるように印刷版が位置決めされる。図２（ｄ）に示さ
れた形状の位置決めマーク７は矢印形状であり矢印の先
端が印刷層８の隅を示す。図２（ｅ）に示される形状の
位置決めマーク７は図１の実施例と同じカギ形状である
がこのばあい印刷層８の内側に位置決めマーク７が設け
られている。印刷層８が透けて位置決めマーク７を確認
できるばあいにはこの構造でもよい。In the embodiment shown in FIG. 1, the positioning marks 5a and 5b are key-shaped. However, the positioning mark only has to serve as a reference for the alignment of the printing plate, and is not limited to the key shape. FIG. 2 shows examples of the positioning marks 7 having various shapes. Each of these serves as a reference for the position of the corner of the print layer 8. Figure 2
In (a), the positioning mark 7 has the same key shape as that of the embodiment, but in this case, the corner portion is rounded. Such a shape has an advantage of being advantageous against electrostatic breakdown. The positioning mark 7 having the shape shown in FIG. 2B is two line segments that are orthogonal to each other, and the position of the corner of the printing layer 8 is shown by this. Figure 2
The positioning mark 7 having the shape shown in (c) has a key shape or a rectangular shape formed by a broken line. This is effective when the positioning mark 7 is a conductive film and short-circuiting of the electrode film is avoided. In this case, if the printing plate is formed in a rectangular shape, the printing plate is positioned so that the printing layer 8 fits inside. The positioning mark 7 having the shape shown in FIG. 2D has an arrow shape, and the tip of the arrow indicates the corner of the printing layer 8. The positioning mark 7 having the shape shown in FIG. 2E has the same key shape as that of the embodiment of FIG. 1, but in this case, the positioning mark 7 is provided inside the printing layer 8. If the printing layer 8 is transparent and the positioning mark 7 can be confirmed, this structure may be used.
【００１７】[0017]
【発明の効果】本発明によれば表示パネル内の印刷層を
設ける場所に位置決めマークがつけられているので、電
極膜などと印刷層との相対的位置関係が直ちに判定で
き、印刷版の位置合わせの精度および作業性が大幅に向
上する。また位置決めマークが製品完成後も表示パネル
内に残されるため、製品完成後の検査や不良解析の精度
および作業性も向上する。According to the present invention, since the positioning mark is provided at the position where the printing layer is provided in the display panel, the relative positional relationship between the electrode film and the printing layer can be immediately determined, and the position of the printing plate can be determined. The accuracy of alignment and workability are greatly improved. Further, since the positioning mark is left in the display panel even after the product is completed, the accuracy and workability of inspection and defect analysis after the product is completed are improved.
【図１】本発明の一実施例である液晶表示装置の透明基
板の角部を示す説明図である。FIG. 1 is an explanatory diagram showing a corner portion of a transparent substrate of a liquid crystal display device which is an embodiment of the present invention.
【図２】本発明の液晶表示装置に用いられる位置決めマ
ークの他の例を示す説明図である。FIG. 2 is an explanatory diagram showing another example of a positioning mark used in the liquid crystal display device of the present invention.
【図３】従来の液晶表示装置の透明基板の一例を示す説
明図である。FIG. 3 is an explanatory diagram showing an example of a transparent substrate of a conventional liquid crystal display device.
１ 透明基板 ３ 配向膜 ４ シール剤層 ５ａ 配向膜の位置決めマーク ５ｂ シール剤層の位置決めマーク ７ 位置決めマーク ８ 印刷層 DESCRIPTION OF SYMBOLS 1 Transparent substrate 3 Alignment film 4 Sealing agent layer 5a Alignment film positioning mark 5b Sealing agent layer positioning mark 7 Positioning mark 8 Printing layer
Claims (2)
れぞれの前記電極膜側に配向膜が印刷され、かつ、２枚
の透明基板の一方にシール剤層が印刷され、前記２枚の
透明基板がスペーサを介して前記シール剤層により接着
され、該２枚の透明基板の間隙に液晶材料が充填されて
なる液晶表示装置であって、前記配向膜および／または
シール剤層が印刷される印刷層の周縁部の少なくとも一
部に位置決めマークが設けられてなる液晶表示装置。1. An alignment film is printed on the electrode film side of each of two transparent substrates provided with electrode films, and a sealant layer is printed on one of the two transparent substrates, A transparent substrate is adhered by the sealing agent layer via a spacer, and a liquid crystal material is filled in a gap between the two transparent substrates, wherein the alignment film and / or the sealing agent layer is printed. Liquid crystal display device in which a positioning mark is provided on at least a part of the peripheral portion of the printed layer.
枚の透明基板が一方の透明基板に設けられたシール剤層
を介して接着され、その間隙に液晶材料が充填された液
晶表示装置の製法であって、前記配向膜および／または
シール剤層をそれぞれ印刷する前のいずれかの工程で配
向膜および／またはシール剤層の周縁部の少なくとも一
部に位置決めマークを設け、該位置決めマークを基準に
して前記配向膜および／またはシール剤層を設けること
を特徴とする液晶表示装置の製法。2. An electrode film and an alignment film are provided on each of the two.
A method for manufacturing a liquid crystal display device in which one transparent substrate is adhered via a sealant layer provided on one transparent substrate, and the gap is filled with a liquid crystal material, wherein the alignment film and / or the sealant layer are provided. Providing a positioning mark on at least a part of the peripheral edge of the alignment film and / or the sealant layer in any step before printing, and providing the alignment film and / or the sealant layer on the basis of the positioning mark. A manufacturing method of a liquid crystal display device characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4338579A JP2806721B2 (en) | 1992-12-18 | 1992-12-18 | Liquid crystal display device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4338579A JP2806721B2 (en) | 1992-12-18 | 1992-12-18 | Liquid crystal display device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06186515A true JPH06186515A (en) | 1994-07-08 |
| JP2806721B2 JP2806721B2 (en) | 1998-09-30 |
Family
ID=18319506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4338579A Expired - Fee Related JP2806721B2 (en) | 1992-12-18 | 1992-12-18 | Liquid crystal display device and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2806721B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077389A1 (en) * | 1999-03-08 | 2001-02-21 | Seiko Epson Corporation | Liquid crystal device and its production method |
| WO2011086621A1 (en) * | 2010-01-14 | 2011-07-21 | シャープ株式会社 | Liquid crystal display panel, and method for inspecting substrate for liquid crystal display panel |
| JP2012238261A (en) * | 2011-05-13 | 2012-12-06 | Alps Electric Co Ltd | Input device and method for manufacturing input device |
| JP2013070060A (en) * | 2011-09-24 | 2013-04-18 | Tpk Touch Solutions (Xiamen) Inc | Substrate lamination method |
| JP2013219689A (en) * | 2012-04-11 | 2013-10-24 | Sharp Corp | Display device and television receiver |
| GB2510994A (en) * | 2010-06-04 | 2014-08-20 | Plastic Logic Ltd | Edge detection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627112A (en) * | 1979-08-10 | 1981-03-16 | Omron Tateisi Electronics Co | Production of optical display device |
| JPH04250416A (en) * | 1991-01-28 | 1992-09-07 | Nec Corp | Manufacture of liquid crystal element |
-
1992
- 1992-12-18 JP JP4338579A patent/JP2806721B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627112A (en) * | 1979-08-10 | 1981-03-16 | Omron Tateisi Electronics Co | Production of optical display device |
| JPH04250416A (en) * | 1991-01-28 | 1992-09-07 | Nec Corp | Manufacture of liquid crystal element |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077389A1 (en) * | 1999-03-08 | 2001-02-21 | Seiko Epson Corporation | Liquid crystal device and its production method |
| EP1077389A4 (en) * | 1999-03-08 | 2004-11-10 | Seiko Epson Corp | Liquid crystal device and its production method |
| WO2011086621A1 (en) * | 2010-01-14 | 2011-07-21 | シャープ株式会社 | Liquid crystal display panel, and method for inspecting substrate for liquid crystal display panel |
| JP5150000B2 (en) * | 2010-01-14 | 2013-02-20 | シャープ株式会社 | Liquid crystal display panel, inspection method for liquid crystal display panel substrate |
| US8730446B2 (en) | 2010-01-14 | 2014-05-20 | Sharp Kabushiki Kaisha | Liquid crystal display panel, and method for testing substrate for liquid crystal display panel |
| GB2510994A (en) * | 2010-06-04 | 2014-08-20 | Plastic Logic Ltd | Edge detection |
| GB2510994B (en) * | 2010-06-04 | 2014-12-31 | Plastic Logic Ltd | Edge detection |
| JP2012238261A (en) * | 2011-05-13 | 2012-12-06 | Alps Electric Co Ltd | Input device and method for manufacturing input device |
| JP2013070060A (en) * | 2011-09-24 | 2013-04-18 | Tpk Touch Solutions (Xiamen) Inc | Substrate lamination method |
| JP2013219689A (en) * | 2012-04-11 | 2013-10-24 | Sharp Corp | Display device and television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2806721B2 (en) | 1998-09-30 |
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