JP2001154012A - Color filter for liquid crystal and method of producing the same - Google Patents
Color filter for liquid crystal and method of producing the sameInfo
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- JP2001154012A JP2001154012A JP34140399A JP34140399A JP2001154012A JP 2001154012 A JP2001154012 A JP 2001154012A JP 34140399 A JP34140399 A JP 34140399A JP 34140399 A JP34140399 A JP 34140399A JP 2001154012 A JP2001154012 A JP 2001154012A
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- Japan
- Prior art keywords
- light
- colored
- photosensitive resin
- resin material
- color filter
- Prior art date
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Abstract
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、カラー液晶表示装
置に好適な液晶用カラーフィルタおよびその製造方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal color filter suitable for a color liquid crystal display device and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来から、文字や図形などの各種の画像
を表示する表示装置の一種として、カラー液晶表示装置
が知られている。このようなカラー液晶表示装置におい
ては、比較的容易にカラー化を実現することができるな
どの理由により、バックライトと液晶用カラーフィルタ
とを組み合わせたものが一般的に用いられている。2. Description of the Related Art Conventionally, a color liquid crystal display device has been known as a kind of display device for displaying various images such as characters and figures. In such a color liquid crystal display device, a combination of a backlight and a color filter for liquid crystal is generally used because colorization can be relatively easily realized.
【０００３】また、液晶用カラーフィルタとして、ノー
トパソコン等に搭載されているフルドット型のカラー液
晶表示装置に用いられている赤、緑、青の８色を用いた
マイクロカラーフィルタやオーディオ、手のインパネ等
に搭載されている固定表示部や日の字セグメントを有す
るセグメント型のカラー液晶表示装置に用いられている
多色部分カラーフィルタが知られている。Further, as a liquid crystal color filter, a micro color filter using eight colors of red, green, and blue used in a full dot type color liquid crystal display device mounted on a notebook personal computer or the like, an audio device, and a hand device. A multi-color partial color filter used in a segmented color liquid crystal display device having a fixed display portion mounted on an instrument panel or the like and a character segment of the sun is known.
【０００４】前記マイクロカラーフィルタは、カラー液
晶表示装置の表示領域に対応する領域の全面にストライ
プ状、モザイク状、トライアングル状に規則正しく配設
された赤、緑、青等の３色の着色層が形成されている。
また、各画素の周囲を取り囲むような格子状の遮光部を
有する遮光マスクが形成されている。In the micro color filter, colored layers of three colors such as red, green, and blue, which are regularly arranged in a stripe, mosaic, or triangle, over the entire area corresponding to the display area of a color liquid crystal display device. Is formed.
Further, a light-shielding mask having a lattice-shaped light-shielding portion surrounding the periphery of each pixel is formed.
【０００５】前紀多色部分カラーフィルタは、アイコン
等の固定表示部、日の字セグメント部、ドット表示部等
の表示部単位でカラー化されているもので、カラー液晶
表示装置の表示領域内における各表示部分以外の部分は
遮光マスクが形成されている。すなわち、表示部分が遮
光マスクの光透過開口部となり、その他の部分が遮光部
となる。該多色部分カラーフィルタは前記マイクロカラ
ーフィルタの遮光部と比べて遮光部の面積が大きく、表
示領域内に１ｍｍ2 以上の遮光部を複数個有しているの
が特徴である。The multicolor partial color filter is colored in units of display units such as a fixed display unit such as an icon, a character segment portion of a date, and a dot display unit. The light-shielding mask is formed on portions other than the respective display portions in FIG. That is, the display part becomes the light transmission opening of the light shielding mask, and the other part becomes the light shielding part. The multicolor partial color filter is characterized in that the light-shielding portion has a larger area than the light-shielding portion of the micro color filter and has a plurality of light-shielding portions of 1 mm 2 or more in the display area.
【０００６】また、表示容量の違いにより、前記マイク
ロカラーフィルタは前記着色層の表面に平滑化膜を形成
し、その上に酸化インジウム錫（ＩＴＯ）等からなる透
明電壌が形成されている。一方、多色部分カラーフィル
タは前記着色層の表面に直接的に透明電梅が形成されて
いる。Also, due to the difference in display capacity, the micro color filter has a smoothing film formed on the surface of the coloring layer, and a transparent electromyo made of indium tin oxide (ITO) or the like is formed thereon. On the other hand, in the multicolor partial color filter, the transparent electrode is directly formed on the surface of the coloring layer.
【０００７】このようなカラーフィルタは、透明基板の
表面に、例えば、黒色の感光性樹脂材料からなる厚さ
１．０μｍ程度の所定パターンの遮光マスクをフォトリ
ソグラフィー法を用いて所定のパターンで形成した後
に、樹脂中に着色材を分散させた着色感光性樹脂材料を
塗布して、フォトリソグラフィー法でパターニングする
塗布、露光、現像をこの順に３回繰り返して、厚さ１．
０μｍ程度の赤・緑・青の３色の画素となる着色層を遮
光部の所定位置に設けられる複数の光透過開口部を覆う
ようにして所定のパターンで形成し、その後、平滑化膜
あるいは遮光マスクおよび各着色層の表面にＩＴＯから
なる透明導電膜を形成し、ポジフォトレジストを用いて
所定のパターンの透明電極を設けることで形成されてい
る。In such a color filter, a light-shielding mask having a predetermined pattern of, for example, a black photosensitive resin material and having a thickness of about 1.0 μm is formed on the surface of a transparent substrate in a predetermined pattern by photolithography. After that, a colored photosensitive resin material in which a coloring material is dispersed in a resin is applied, and application, exposure and development for patterning by photolithography are repeated three times in this order to obtain a thickness of 1.
A colored layer of about 0 μm for three color pixels of red, green and blue is formed in a predetermined pattern so as to cover a plurality of light transmission openings provided at predetermined positions of the light shielding portion, and thereafter, a smoothing film or It is formed by forming a transparent conductive film made of ITO on the surface of the light-shielding mask and each colored layer, and providing a predetermined pattern of transparent electrodes using a positive photoresist.
【０００８】なお、着色感光性樹脂材料の着色材として
は、例えば、赤の着色材としてジアントラキノン系、緑
の着色材としてハロゲン化フタロシアニン系、青の着色
材としてフタロシアニン系が用いられている。As the coloring material of the colored photosensitive resin material, for example, a dianthraquinone-based coloring agent for a red coloring agent, a halogenated phthalocyanine-based coloring agent for a green coloring agent, and a phthalocyanine-based coloring agent for a blue coloring agent are used.
【０００９】[0009]
【発明が解決しようとする課題】ところで、前述した従
来の液晶用カラーフィルタにおいては、着色層の端部で
透明電極の断線たる電極断線が生じる場合があるという
問題点があった。However, in the above-described conventional color filter for liquid crystal, there is a problem that an electrode disconnection, which is a disconnection of a transparent electrode, may occur at an end of the colored layer.
【００１０】この電極断線は、例えば、透明基板上に塗
布した着色感光性樹脂材料をパターニングした際に、図
９に示すように、特定の着色層の端部の根本部位に特定
着色層の残渣が生じ着色層と透明電極との付着力が低下
して電極断線が生じる場合もある。When the colored photosensitive resin material applied on the transparent substrate is patterned, for example, as shown in FIG. 9, the electrode disconnection is caused by the residue of the specific colored layer at the root at the end of the specific colored layer. This may cause the adhesion between the colored layer and the transparent electrode to be reduced, resulting in electrode disconnection.
【００１１】また、電極断線は、着色層の端部の耐アル
カリ性の悪化に起因して、透明電極の着色層の端部に位
置する部位が剥離して電極断線が生じることがある。[0011] In addition, the electrode disconnection may be caused by exfoliation of a portion of the transparent electrode located at the edge of the colored layer due to deterioration of the alkali resistance of the edge of the colored layer, which may result in electrode disconnection.
【００１２】なお、残渣および耐アルカリ性の悪化の原
因については明確ではないが、共に赤色の着色感光性樹
脂材料、特に、ジアントラキノン系の着色材を用いた着
色感光性樹脂材料による着色層の端部に多く見られる。
言い換えると、着色感光性樹脂材料は、顔料の種類によ
って、着色層を形成した際に、着色層の端部で電極断線
を生じやすいものと、着色層の端部で電極断線を生じな
いものとがあると推考される。なお、前記電極断線が生
じやすい着色層には、アントラキノン系の着色材を含ん
だ黄色系の着色層、紫色系の着色層もある。Although the cause of the residue and the deterioration of the alkali resistance are not clear, both ends of the colored layer of a colored photosensitive resin material using a red colored photosensitive resin material, particularly a colored photosensitive resin material using a dianthraquinone-based coloring material. Many are found in the department.
In other words, the colored photosensitive resin material is, depending on the kind of the pigment, when the colored layer is formed, one in which the electrode is easily disconnected at the edge of the colored layer, and one in which the electrode is not disconnected at the edge of the colored layer. It is inferred that there is. In addition, the coloring layer in which the electrode disconnection easily occurs includes a yellow coloring layer containing an anthraquinone coloring material and a purple coloring layer.
【００１３】本発明はこれらの点に鑑みてなされたもの
であり、透明電極の断線を確実に防止することのできる
液晶用カラーフィルタおよびその製造方法を提供するこ
とを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a color filter for liquid crystal which can surely prevent disconnection of a transparent electrode, and a method of manufacturing the same.
【００１４】[0014]
【課題を解決するための手段】前述した目的を達成する
ため、請求項１に係る本発明の液晶用カラーフィルタの
特徴は、各着色層の端部を遮光部下で隣接させた点にあ
る。そして、このような構成を採用したことにより、着
色層の端部が遮光部で被覆されているので、透明電極の
断線を確実に防止することができる。In order to achieve the above-mentioned object, the liquid crystal color filter according to the first aspect of the present invention is characterized in that the end portions of the respective colored layers are adjacent to each other under the light shielding portion. In addition, by adopting such a configuration, since the end portion of the colored layer is covered with the light shielding portion, disconnection of the transparent electrode can be reliably prevented.
【００１５】請求項２に係る本発明の液晶用カラーフィ
ルタの特徴は、各着色層を遮光マスクの遮光部上で隣接
させるとともに、各着色層のうち、着色層の端部で電極
断線を生じやすい着色感光性樹脂材料からなる着色層の
端部を、着色層の端部で電極断線を生じない着色感光性
樹脂材料からなる着色層で被覆した点にある。そして、
このような構成を採用したことにより、電極断線を生じ
やすい着色感光性樹脂材料で形成された着色層の端部を
電極断線を生じない着色感光性樹脂材料で被覆すること
ができるので透明電極の断線を確実に防止することがで
きる。A feature of the liquid crystal color filter according to the present invention is that the colored layers are adjacent to each other on the light-shielding portion of the light-shielding mask, and an electrode disconnection occurs at an end of the colored layer among the colored layers. The end of the colored layer made of the colored photosensitive resin material, which is easy to cover, is covered with the colored layer made of the colored photosensitive resin material that does not cause electrode disconnection at the end of the colored layer. And
By adopting such a configuration, the edge of the colored layer formed of the colored photosensitive resin material which is apt to cause the disconnection of the electrode can be covered with the colored photosensitive resin material which does not cause the disconnection of the electrode. Disconnection can be reliably prevented.
【００１６】請求項３に係る本発明の液晶用カラーフィ
ルタの製造方法の特徴は、透明基板の表面に着色感光性
樹脂材料から形成された複数色の着色層を任意の順序で
形成した後に、遮光マスクを形成し、その後、透明電極
を形成する点にある。そして、このような構成を採用し
たことにより、着色層の端部を遮光部で被覆することが
できるので、透明電極の断線を確実に防止することがで
きる。したがって、請求項１に係る本発明の液晶用カラ
ーフィルタを容易に製造することができる。According to a third aspect of the present invention, there is provided a method for manufacturing a color filter for a liquid crystal according to the present invention, wherein a plurality of colored layers formed of a colored photosensitive resin material are formed on a surface of a transparent substrate in an arbitrary order. The point is that a light-shielding mask is formed, and then a transparent electrode is formed. Then, by adopting such a configuration, the end of the colored layer can be covered with the light-shielding portion, so that disconnection of the transparent electrode can be reliably prevented. Therefore, the liquid crystal color filter according to the first aspect of the present invention can be easily manufactured.
【００１７】請求項４に係る本発明の液晶用カラーフィ
ルタの製造方法の特徴は、透明基板の表面に遮光マスク
を形成した後に、遮光マスクの光透過開口部に着色感光
性樹脂材料から形成された複数色の３色の着色層を、着
色層の端部で電極断線を生じやすい着色感光性樹脂材料
からなる着色層を先に形成し、着色層の端部で電極断線
を生じない着色感光性樹脂材料からなる着色層を後から
形成し、その後、透明電極を形成する点にある。そし
て、このような構成を採用したことにより、電極断線を
生じやすい着色感光性樹脂材料で形成された着色層の端
部を電極断線を生じない着色感光性樹脂材料で被覆する
ことができるので、透明電極の断線を確実に防止するこ
とができる。したがって、請求項２に係る本発明の液晶
用カラーフィルタを容易に製造することができる。According to a fourth aspect of the present invention, there is provided a method for manufacturing a color filter for liquid crystal according to the present invention, wherein a light-shielding mask is formed on a surface of a transparent substrate, and then a light-transmitting opening of the light-shielding mask is formed of a colored photosensitive resin material. A colored layer made of a colored photosensitive resin material which is liable to cause electrode disconnection at the end of the colored layer, and a colored photosensitive layer which does not cause electrode disconnection at the end of the colored layer. The point is that a colored layer made of a conductive resin material is formed later, and then a transparent electrode is formed. And, by adopting such a configuration, the end of the colored layer formed of the colored photosensitive resin material that easily causes the disconnection of the electrode can be covered with the colored photosensitive resin material that does not cause the disconnection of the electrode. Disconnection of the transparent electrode can be reliably prevented. Therefore, the color filter for liquid crystal of the present invention according to claim 2 can be easily manufactured.
【００１８】[0018]
【発明の実施の形態】以下、本発明を図面に示す実施形
態により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.
【００１９】図１および図２は本発明に係る液晶用カラ
ーフィルタの第１実施形態の要部を示すものであり、図
１は断面構造を示す説明図、図２は着色層の相互に隣位
する相互間の形状を示す拡大説明図である。FIGS. 1 and 2 show the main part of a first embodiment of a liquid crystal color filter according to the present invention. FIG. 1 is an explanatory view showing a cross-sectional structure, and FIG. FIG. 4 is an enlarged explanatory view showing the shapes between the adjacent positions.
【００２０】本実施形態の液晶カラーフィルタ１は、図
１に示すように、透明なガラスなどにより形成された透
明基板２の表面に、ブラックマスクあるいはブラックマ
トリクスと称される遮光マスク３と、赤・緑・青の３色
の着色層４Ｒ，４Ｇ，４Ｂとが形成されており、これら
の表面には、透明電極５が直接形成されている。As shown in FIG. 1, a liquid crystal color filter 1 according to the present embodiment has a light shielding mask 3 called a black mask or a black matrix on a surface of a transparent substrate 2 formed of transparent glass or the like. The three colored layers 4R, 4G, and 4B of green and blue are formed, and the transparent electrode 5 is directly formed on these surfaces.
【００２１】前記遮光マスク３は、各着色層４（符号４
は、赤・緑・青の３色の着色層４Ｒ，４Ｇ，４Ｂを総称
する）の間の隙間を遮光するための遮光部３ａと、この
遮光部３ａの所定位置に所定パターンで設けられる複数
の光透過開口部３ｂとを具備している。この遮光マスク
３は、黒色の着色感光性樹脂材料により形成され、電気
絶縁性の高い材料が好ましい。The light-shielding mask 3 is formed of each colored layer 4 (reference numeral 4).
Are collectively referred to as three colored layers 4R, 4G, and 4B of three colors of red, green, and blue), and a plurality of light-shielding portions 3a provided in a predetermined pattern at predetermined positions of the light-shielding portions 3a. And a light transmission opening 3b. The light-shielding mask 3 is formed of a black colored photosensitive resin material, and is preferably made of a material having high electrical insulation.
【００２２】前記各着色層４は、Ｒ（赤），Ｇ（緑），
Ｂ（青）の画素となる赤・緑・青の３色の着色感光性樹
脂材料により形成されており、遮光マスク３の光透過開
口部３ｂに所定のパターンで配置されている。なお、図
示していないが、本実施形態の液晶用カラーフィルタを
用いたカラー液晶表示素子の表示領域に位置する部分に
は、遮光マスク３の遮光部３ａの面積が１ｍｍ2 以上箇
所が複数個存在しており、固定表示部、日の字セグメン
ト部、ドット表示部となる光透過開口部３ｂを有してい
る。Each of the coloring layers 4 is composed of R (red), G (green),
It is formed of a colored photosensitive resin material of three colors of red, green, and blue to be B (blue) pixels, and is arranged in a light transmitting opening 3b of the light shielding mask 3 in a predetermined pattern. Although not shown, a plurality of locations where the area of the light-shielding portion 3a of the light-shielding mask 3 is 1 mm 2 or more are located in the display region of the color liquid crystal display element using the liquid crystal color filter of the present embodiment. There is a light transmission opening 3b which is present and serves as a fixed display unit, a character segment, and a dot display.
【００２３】本実施形態における各着色層４の相互に隣
位する相互間の形状は、図２に示すように、各着色層４
の端部が、遮光マスク３の遮光部３ａ下で遮光部３ａに
覆われるようにして隣接するように形成されている。As shown in FIG. 2, each of the colored layers 4 in the present embodiment has a shape between adjacent ones.
Are formed so as to be adjacent to each other so as to be covered with the light shielding portion 3a under the light shielding portion 3a of the light shielding mask 3.
【００２４】すなわち、本実施形態の液晶カラーフィル
タ１は、所定パターンの各着色層４が相互間に隙間６を
もって隣接形成されており、各着色層４の相互間の隙間
６および各着色層４の端部は、遮光マスク３の遮光部３
ａにより、例えば５０μｍ程度オーバーラップするよう
に覆われている。That is, in the liquid crystal color filter 1 of the present embodiment, the colored layers 4 of a predetermined pattern are formed adjacent to each other with the gaps 6 therebetween, and the gaps 6 between the colored layers 4 and the respective colored layers 4 are formed. Of the light shielding portion 3 of the light shielding mask 3
a, for example, so as to overlap by about 50 μm.
【００２５】前記各着色層４を形成する着色感光性樹脂
材料の着色材としては、例えば、赤の着色材としてジア
ントラキノン系、緑の着色材としてハロゲン化フタロシ
アニン系、青の着色材としてフタロシアニン系が用いら
れる。Examples of the coloring material of the colored photosensitive resin material forming each of the coloring layers 4 include a dianthraquinone-based coloring material as a red coloring material, a halogenated phthalocyanine-based coloring material as a green coloring material, and a phthalocyanine-based coloring material as a blue coloring material. Is used.
【００２６】前記透明電極５は、従来と同様にして、Ｉ
ＴＯなどにより形成されている。The transparent electrode 5 is formed in the same manner as in the prior art.
It is formed by TO or the like.
【００２７】ここで、本実施形態の液晶用カラーフィル
タ１の製造方法について図３に示すブロック図により説
明する。Here, a method of manufacturing the liquid crystal color filter 1 of the present embodiment will be described with reference to a block diagram shown in FIG.
【００２８】図３は本発明に係る液晶用カラーフィルタ
の製造方法の第１実施形態の要部を製造工程に沿って示
すブロック図である。FIG. 3 is a block diagram showing a main part of a first embodiment of a method for manufacturing a color filter for liquid crystal according to the present invention along a manufacturing process.
【００２９】本実施形態の液晶用カラーフィルタ１の製
造方法は、透明基板２の表面に着色感光性樹脂材料をも
って形成される赤・緑・青の３色の着色層４Ｒ，４Ｇ，
４Ｂを任意の順序で形成した後に、遮光マスク３を形成
し、その後、透明電極５を形成している。The method for manufacturing the color filter 1 for a liquid crystal according to the present embodiment includes three colored layers 4 R, 4 G, 4 G, and 4 G formed of a colored photosensitive resin material on the surface of the transparent substrate 2.
After forming the 4B in an arbitrary order, the light-shielding mask 3 is formed, and then the transparent electrode 5 is formed.
【００３０】さらに詳しく説明すると、図３に示すよう
に、本実施形態の液晶用カラーフィルタ１の製造方法
は、着色層形成工程において、透明基板２の表面に、赤
・緑・青の３色の着色層４Ｒ，４Ｇ，４Ｂをまず形成す
る。この着色層形成工程における各着色層４の形成方法
は、従来と同様に、所定パターンのマスクパターンを用
いて、塗布工程、露光工程、現像工程をこの順に３回繰
り返す。この時、赤・緑・青の３色の着色層４を形成す
る順序については、任意の順序で形成すればよい。な
お、各着色層４の相互に隣位する相互間の形状は従来と
同様でよいが、各着色層４の相互に隣位する相互間には
隙間６を設けない方が各着色層４の厚さを均一にすると
いう意味で好ましい。なお、各着色層４の相互に設ける
隙間６は、遮光マスク３の遮光部３ａの下に位置させる
ことが肝要である。また、着色層形成工程は、従来と同
様なので、その詳しい説明は省略する。More specifically, as shown in FIG. 3, in the method of manufacturing the liquid crystal color filter 1 of the present embodiment, in the colored layer forming step, three colors of red, green and blue are formed on the surface of the transparent substrate 2. First, the colored layers 4R, 4G, and 4B are formed. In the method of forming each colored layer 4 in the colored layer forming step, the coating step, the exposing step, and the developing step are repeated three times in this order using a predetermined mask pattern in the same manner as in the related art. At this time, the order of forming the three colored layers 4 of red, green, and blue may be any order. The shape of each colored layer 4 adjacent to each other may be the same as that of the related art, but it is better not to provide the gap 6 between the adjacent color layers 4. It is preferable in terms of making the thickness uniform. It is important that the gaps 6 provided between the coloring layers 4 be located below the light shielding portion 3a of the light shielding mask 3. Further, the colored layer forming step is the same as the conventional one, so that the detailed description is omitted.
【００３１】ついで、遮光マスク形成工程において、各
着色層４を形成した透明基板２の表面に、従来と同様に
して、遮光部３ａと、所定パターンで設けられる複数の
光透過開口部３ｂとを具備する遮光マスク３を形成す
る。Next, in a light-shielding mask forming step, a light-shielding portion 3a and a plurality of light-transmitting openings 3b provided in a predetermined pattern are formed on the surface of the transparent substrate 2 on which the colored layers 4 are formed in the same manner as in the related art. The provided light-shielding mask 3 is formed.
【００３２】その後、透明電極形成工程において、各着
色層４を形成した透明基板２の表面に、従来と同様に、
ＩＴＯなどからなる所定パターンの透明電極５を形成す
ることにより、本実施形態の液晶用カラーフィルタ１が
完成する。Thereafter, in a transparent electrode forming step, the surface of the transparent substrate 2 on which the colored layers 4 are formed is formed on the surface of the transparent substrate 2 in the same manner as in the prior art.
By forming the transparent electrode 5 having a predetermined pattern made of ITO or the like, the color filter 1 for a liquid crystal of the present embodiment is completed.
【００３３】このように、本実施形態の液晶用カラーフ
ィルタ１によれば、着色層４の端部および着色層４の間
の隙間６を遮光マスク３の遮光部３ａで被覆することが
できるので、各着色層４を形成する着色材などの成分の
いかんにかかわらず、透明電極５の断線たる電極断線を
確実かつ容易に防止することができる。As described above, according to the color filter 1 for a liquid crystal of the present embodiment, the gap 6 between the end portion of the coloring layer 4 and the coloring layer 4 can be covered with the light shielding portion 3a of the light shielding mask 3. Irrespective of the components such as the coloring material forming each colored layer 4, the disconnection of the transparent electrode 5, that is, the disconnection of the electrode can be reliably and easily prevented.
【００３４】すなわち、電極断線を生じやすい着色感光
性樹脂材料からなる着色層４の端部の根本部位にの残渣
が生じても透明電極５とは接していないので、透明電極
の付着力は低下しない。また、電極断線を生じやすい着
色感光性樹脂材料からなる着色層４の端部を電極断線の
生じない遮光マスク３の遮光部３ａで被覆することがで
きるので、着色層４の端部の耐アルカリ性の悪化に起因
する、透明電極５の着色層４の端部に位置する部位の剥
離を防止できる。さらに、各着色層４の間の隙間６を電
極断線を生じない遮光マスク３の遮光部３ａで被覆して
なくすことができるので、透明電極５を形成する際のポ
ジフォトレジストの非密着部の発生を誘発することがな
い。That is, even if a residue is formed at the root of the end portion of the colored layer 4 made of the colored photosensitive resin material which is apt to cause disconnection of the electrode, the residue is not in contact with the transparent electrode 5, so that the adhesion of the transparent electrode is reduced. do not do. In addition, since the end of the colored layer 4 made of a colored photosensitive resin material which is apt to cause electrode disconnection can be covered with the light-shielding portion 3a of the light-shielding mask 3 in which electrode disconnection does not occur, the edge of the colored layer 4 has alkali resistance. Of the transparent electrode 5 at the end portion of the colored layer 4 due to the deterioration of the transparent electrode 5 can be prevented. Further, since the gaps 6 between the colored layers 4 can be eliminated by covering with the light-shielding portions 3a of the light-shielding mask 3 which does not cause disconnection of the electrodes, the non-contact portions of the positive photoresist at the time of forming the transparent electrodes 5 can be eliminated. It does not trigger outbreaks.
【００３５】したがって、本実施形態の液晶用カラーフ
ィルタ１によれば、透明電極５の断線たる電極断線を確
実に防止することができる。Therefore, according to the liquid crystal color filter 1 of the present embodiment, the disconnection of the transparent electrode 5, that is, the disconnection of the electrode can be reliably prevented.
【００３６】また、本実施形態の液晶用カラーフィルタ
１の製造方法によれば、本実施形態の液晶用カラーフィ
ルタ１を容易に製造することができる。Further, according to the method of manufacturing the liquid crystal color filter 1 of the present embodiment, the liquid crystal color filter 1 of the present embodiment can be easily manufactured.
【００３７】すなわち、本実施形態の液晶用カラーフィ
ルタ１の製造方法は、カラー成分のいかんにかかわら
ず、従来の液晶用カラーフィルタの製造方法の順序を変
更するだけで済む。したがって、本実施形態の液晶用カ
ラーフィルタ１を効率よく製造することができる。That is, in the method of manufacturing the liquid crystal color filter 1 of the present embodiment, it is only necessary to change the order of the conventional method of manufacturing the liquid crystal color filter regardless of the color components. Therefore, the liquid crystal color filter 1 of the present embodiment can be manufactured efficiently.
【００３８】図４から図７は本発明に係る液晶用カラー
フィルタの第２実施形態の要部を示すものであり、図４
は断面構造を示す説明図、図５は相互に隣位する着色層
のうちの一方の着色層がその端部で電極断線を生じやす
い着色感光性樹脂材料で形成され他方の着色層がその端
部で電極断線を生じない着色感光性樹脂材料で形成され
ている部位における着色層の相互に隣位する相互間の形
状を示す拡大説明図、図６は相互に隣位する着色層の両
者がともにその端部で電極断線を生じやすい着色感光性
樹脂材料で形成されている部位における着色層の相互に
隣位する相互間の形状を示す拡大説明図、図７は相互に
隣位する着色層の両者がともにその端部で電極断線を生
じない着色感光性樹脂材料で形成されている部位におけ
る着色層の相互に隣位する相互間の形状を示す拡大説明
図である。FIGS. 4 to 7 show the main parts of a second embodiment of the liquid crystal color filter according to the present invention.
FIG. 5 is an explanatory view showing a cross-sectional structure. FIG. 5 shows one of colored layers adjacent to each other formed of a colored photosensitive resin material that is apt to cause electrode disconnection at its end, and the other colored layer is formed at its end. FIG. 6 is an enlarged explanatory view showing a shape between adjacent colored layers in a portion formed of a colored photosensitive resin material that does not cause electrode disconnection in a portion, and FIG. 6 shows both colored layers adjacent to each other. FIG. 7 is an enlarged explanatory view showing the shapes of the colored layers adjacent to each other in a portion formed of a colored photosensitive resin material that is liable to cause electrode disconnection at the ends thereof. FIG. FIG. 3 is an enlarged explanatory view showing the shapes of adjacent colored layers adjacent to each other in a portion formed of a colored photosensitive resin material that does not cause electrode disconnection at its ends.
【００３９】本実施形態の液晶カラーフィルタ１Ａは、
図４に示すように、透明なガラスなどにより形成された
透明基板２の表面に、ブラックマスクあるいはブラック
マトリクスと称される遮光マスク３と、赤・緑・青の３
色の着色層４Ｒ，４Ｇ，４Ｂとが形成されており、これ
らの表面には、透明電極５が直接形成されている。The liquid crystal color filter 1A of the present embodiment is
As shown in FIG. 4, a light-shielding mask 3 called a black mask or a black matrix and a red / green / blue 3
Colored layers 4R, 4G, and 4B are formed, and a transparent electrode 5 is directly formed on the surface of these layers.
【００４０】前記遮光マスク３は、各着色層４の間の隙
間を遮光するための遮光部３ａと、この遮光部３ａの所
定位置に所定パターンで設けられる複数の光透過開口部
３ｂとを具備している。この遮光マスク３は、黒色の着
色感光性樹脂材料などにより形成される。The light-shielding mask 3 has a light-shielding portion 3a for shielding the gap between the colored layers 4, and a plurality of light-transmitting openings 3b provided in a predetermined pattern at predetermined positions of the light-shielding portion 3a. are doing. The light shielding mask 3 is formed of a black colored photosensitive resin material or the like.
【００４１】前記各着色層４は、Ｒ（赤），Ｇ（緑），
Ｂ（青）の画素となる赤・緑・青の３色の着色感光性樹
脂材料により遮光マスク３の光透過開口部３ｂを所定の
パターンで覆うようにして形成されている。なお、図示
していないが、本実施形態の液晶用カラーフィルタを用
いたカラー液晶表示素子の表示領域に位置する部分に
は、遮光マスク３の遮光部３ａの面積が１ｍｍ2 以上箇
所が複数個存在しており、固定表示部、日の字セグメン
ト部、ドット表示部となる光透過開口部３ｂを有してい
る。Each of the colored layers 4 is composed of R (red), G (green),
The light-transmitting opening 3b of the light-shielding mask 3 is formed by a predetermined pattern with a colored photosensitive resin material of three colors of red, green, and blue, which becomes a B (blue) pixel. Although not shown, a plurality of locations where the area of the light-shielding portion 3a of the light-shielding mask 3 is 1 mm 2 or more are located in the display region of the color liquid crystal display element using the liquid crystal color filter of the present embodiment. There is a light transmission opening 3b which is present and serves as a fixed display unit, a character segment, and a dot display.
【００４２】前記各着色層４は、遮光マスク３の遮光部
３ａ上で隣接するように形成されている。Each of the coloring layers 4 is formed so as to be adjacent on the light shielding portion 3a of the light shielding mask 3.
【００４３】また、各着色層４の相互に隣位する相互間
の形状は、図５に示すように、相互に隣位する着色層４
のうちの一方の着色層４がその端部で電極断線を生じや
すい着色感光性樹脂材料７、例えば赤色の着色感光性樹
脂材料からなる着色層４Ｒと、他方の着色層４がその端
部で電極断線を生じない着色感光性樹脂材料８、例えば
青色の着色感光性樹脂材料からなる着色層４Ｂで形成さ
れている部位においては、遮光部３ａ上において、一方
の着色層４Ｒの端部を他方の着色層４Ｂにより、例えば
５０μｍ程度オーバーラップするように覆われている。Each of the adjacent colored layers 4 has a shape between adjacent colored layers 4 as shown in FIG.
One of the colored layers 4 has a colored photosensitive resin material 7 at which an electrode disconnection is likely to occur at its end, for example, a colored layer 4R made of a red colored photosensitive resin material, and the other colored layer 4 has an end. In a portion formed of the colored photosensitive resin material 8 that does not cause electrode disconnection, for example, the colored layer 4B made of a blue colored photosensitive resin material, one end of one colored layer 4R is connected to the other on the light shielding portion 3a. Is covered by, for example, about 50 μm.
【００４４】さらに、相互に隣位する着色層４の両者が
ともにその端部で電極断線を生じやすい着色感光性樹脂
材料７、例えば赤色の着色感光性樹脂材料からなる着色
層４Ｒが相互に隣位するように形成されている部位にお
いては、図６に示すように、両着色層４Ｒ，４Ｒを遮光
部３ａ上で隙間６を介して隣接させ、かつ、隙間６およ
び相互に隣位する両着色層４Ｒ，４Ｒの端部を電極断線
を生じない感光性樹脂材料１０により、例えば５０μｍ
程度オーバーラップするように覆われている。すなわ
ち、電極断線を生じやすい両着色層４Ｒ，４Ｒの端部を
電極断線を生じない感光性樹脂材料１０で被覆するよう
に形成されている。Further, both the colored layers 4 adjacent to each other are adjacent to the colored photosensitive resin material 7 which is liable to cause electrode disconnection at the end thereof, for example, a colored layer 4R made of a red colored photosensitive resin material. As shown in FIG. 6, the colored layers 4R, 4R are adjacent to each other via the gap 6 on the light-shielding portion 3a, and the gap 6 and both adjacent layers are located on the light-shielding portion 3a. The end portions of the colored layers 4R, 4R are made of, for example, 50 μm
Covered to some extent overlapping. That is, the end portions of the two colored layers 4R, 4R, which are liable to cause electrode disconnection, are formed to be covered with the photosensitive resin material 10 which does not cause electrode disconnection.
【００４５】なお、隙間６を被覆する電極断線を生じな
い感光性樹脂材料１０としては、赤・緑・青の３色の着
色感光性樹脂材料のうちの電極断線を生じない色の着色
感光性樹脂材料８、例えば青色の着色感光性樹脂材料で
形成された着色層４Ｂや、透明の無着色の感光性樹脂材
料や、黒色の感光性樹脂材料などの多種多様の感光性樹
脂材料から選択することができるが、製造工程を増加さ
せずに効率よく製造することができるという意味で、赤
・緑・青の３色の着色感光性樹脂材料のうちの電極断線
を生じない着色感光性樹脂材料８、例えば青色の着色感
光性樹脂材料を用いることが好ましい。The photosensitive resin material 10 that covers the gap 6 and that does not cause electrode disconnection is a colored photosensitive resin material that does not cause electrode disconnection among three colored photosensitive resin materials of red, green, and blue. The resin material 8 is selected from a wide variety of photosensitive resin materials such as a colored layer 4B formed of a blue colored photosensitive resin material, a transparent uncolored photosensitive resin material, and a black photosensitive resin material. However, among the three colored photosensitive resin materials of red, green and blue, the colored photosensitive resin material which does not cause disconnection of the electrodes in the sense that it can be efficiently manufactured without increasing the number of manufacturing steps. 8, for example, it is preferable to use a blue colored photosensitive resin material.
【００４６】さらにまた、相互に隣位する着色層４の両
者がともにその端部で電極断線を生じない着色感光性樹
脂材料８からなる着色層４、例えば青色の着色感光性樹
脂材料で形成された着色層４Ｂが相互に隣位するように
形成されている部位においては、図７に示すように、遮
光部３ａ上で、いずれか一方の着色層４Ｂの端部を他方
の着色層４Ｂにより、例えば５０μｍ程度オーバーラッ
プするように覆うとよい。この場合、相互に隣位する着
色層４の色が同一である場合には、その色の着色層４を
２分割して形成することにより、一方の着色層４の端部
を他方の着色層４でオーバーラップさせる構成を容易に
実現することができる。Further, both of the colored layers 4 adjacent to each other are formed of a colored layer 4 made of a colored photosensitive resin material 8 which does not cause electrode disconnection at its ends, for example, a blue colored photosensitive resin material. In a portion where the colored layers 4B are formed so as to be adjacent to each other, as shown in FIG. 7, the end of one of the colored layers 4B is separated by the other colored layer 4B on the light shielding portion 3a. For example, it is good to cover so as to overlap by about 50 μm. In this case, when the coloring layers 4 adjacent to each other have the same color, the coloring layer 4 of that color is divided into two to form an end of one coloring layer 4 so that the other coloring layer 4 has the other end. 4 can be easily realized.
【００４７】前記各着色層４を形成する着色感光性樹脂
材料の着色材としては、例えば、赤の着色材としてジア
ントラキノン系、緑の着色材としてハロゲン化フタロシ
アニン系、青の着色材としてフタロシアニン系が用いら
れる。As the coloring material of the colored photosensitive resin material forming each colored layer 4, for example, a dianthraquinone-based coloring agent for a red coloring agent, a halogenated phthalocyanine-based coloring agent for a green coloring agent, and a phthalocyanine-based coloring agent for a blue coloring agent. Is used.
【００４８】前記透明電極５は、従来と同様にして、Ｉ
ＴＯなどにより形成されている。The transparent electrode 5 is formed in the same manner as in the prior art.
It is formed by TO or the like.
【００４９】ここで、本実施形態の液晶用カラーフィル
タ１の製造方法について図８に示すブロック図により説
明する。Here, a method for manufacturing the liquid crystal color filter 1 of the present embodiment will be described with reference to a block diagram shown in FIG.
【００５０】図８は本発明に係る液晶用カラーフィルタ
の製造方法の第２実施形態の要部を製造工程に沿って示
すブロック図である。FIG. 8 is a block diagram showing a main part of a second embodiment of a method for manufacturing a color filter for liquid crystal according to the present invention along a manufacturing process.
【００５１】本実施形態の液晶用カラーフィルタ１の製
造方法は、透明基板２の表面に遮光マスク３を形成した
後に、遮光マスク３の光透過開口部３ｂに着色感光性樹
脂材料をもって形成される赤・緑・青の３色の着色層４
Ｒ，４Ｇ，４Ｂを、着色層４の端部で電極断線を生じや
すい着色感光性樹脂材料７からなる着色層４を先に形成
し、着色層４の端部で電極断線を生じない着色感光性樹
脂材料８からなる着色層４を後から形成し、その後、透
明電極５を形成することにより行われる。In the method of manufacturing the color filter 1 for a liquid crystal of the present embodiment, after forming the light-shielding mask 3 on the surface of the transparent substrate 2, the light-transmitting opening 3b of the light-shielding mask 3 is formed of a colored photosensitive resin material. Red, green and blue colored layers 4
R, 4G, and 4B are formed by first forming a colored layer 4 made of a colored photosensitive resin material 7 that is liable to cause electrode disconnection at an end of the colored layer 4, and a colored photosensitive material that does not cause electrode disconnection at the end of the colored layer 4. This is performed by forming the colored layer 4 made of the conductive resin material 8 later and then forming the transparent electrode 5.
【００５２】さらに詳しく説明すると、図８に示すよう
に、本実施形態の液晶用カラーフィルタ１Ａの製造方法
は、遮光マスク形成工程において、透明基板２の表面
に、遮光部３ａと、所定パターンで設けられる複数の光
透過開口部３ｂとを具備する遮光マスク３をまず形成す
る。この遮光マスク３の形成方法は、従来と同様なの
で、その詳しい説明は省略する。More specifically, as shown in FIG. 8, in the method of manufacturing the color filter 1A for a liquid crystal according to the present embodiment, a light shielding portion 3a and a predetermined pattern are formed on the surface of the transparent substrate 2 in the light shielding mask forming step. First, a light-shielding mask 3 including a plurality of light-transmitting openings 3b to be provided is formed. The method of forming the light-shielding mask 3 is the same as the conventional method, and a detailed description thereof will be omitted.
【００５３】ついで、着色層形成工程において、遮光マ
スク３を形成した透明基板２の表面に、赤・緑・青の３
色の着色層４Ｒ，４Ｇ，４Ｂを形成する。この時、赤・
緑・青の３色の着色層４を、着色層４の端部で電極断線
を生じやすい着色感光性樹脂材料７からなる着色層４を
先に形成し、着色層４の端部で電極断線を生じない着色
感光性樹脂材料８からなる着色層４を後から形成する。
本実施形態においては、３色の着色層４を、赤の着色層
４Ｒを最初に形成し、つぎに緑の着色層４Ｇを形成し、
最後に青の着色層４Ｂを形成する。Next, in the colored layer forming step, the red, green and blue 3
The colored layers 4R, 4G, and 4B are formed. At this time,
A colored layer 4 of three colors of green and blue is formed first, and a colored layer 4 made of a colored photosensitive resin material 7 which is liable to cause electrode disconnection at an end of the colored layer 4 is formed first. The colored layer 4 made of the colored photosensitive resin material 8 which does not cause the above is formed later.
In the present embodiment, the three colored layers 4, the red colored layer 4R is formed first, and then the green colored layer 4G is formed.
Finally, a blue colored layer 4B is formed.
【００５４】また、各着色層４の形成は、遮光マスク３
を形成した透明基板２上に着色感光性樹脂材料を塗布す
る塗布と、この塗布した着色感光性樹脂材料をマスクパ
ターンを用いて所定パターンの露光を行う露光と、所定
パターンの着色層４を形成する現像とをこの順に行う。The formation of each colored layer 4 is performed by using the light shielding mask 3.
A colored photosensitive resin material is applied on the transparent substrate 2 on which is formed, a predetermined pattern is exposed to the applied colored photosensitive resin material using a mask pattern, and a colored layer 4 having a predetermined pattern is formed. Development is performed in this order.
【００５５】すなわち、本実施形態の着色層形成工程に
おいては、塗布、露光、現像をこの順に、赤、緑、青の
順に３回繰り返す。That is, in the colored layer forming step of this embodiment, coating, exposure and development are repeated three times in this order, red, green and blue.
【００５６】また、各着色層４の相互に隣位する相互間
は、図５に示すように、相互に隣位する着色層４のうち
の一方の着色層４がその端部で電極断線を生じやすい着
色感光性樹脂材料７、例えば赤色の着色感光性樹脂材料
からなる着色層４Ｒと、他方の着色層４がその端部で電
極断線を生じない着色感光性樹脂材料８、例えば青色の
着色感光性樹脂材料からなる着色層４Ｂで形成されてい
る部位においては、遮光部３ａ上において、一方の着色
層４Ｒの端部を他方の着色層４Ｂにより、例えば５０μ
ｍ程度オーバーラップするように覆うことができるよう
に、一方の着色層４Ｒの端部を他方の着色層４Ｂで被覆
するマスクパターンをそれぞれ用いて形成する。As shown in FIG. 5, one of the coloring layers 4 adjacent to each other has a broken electrode at the end between the adjacent coloring layers 4. A colored photosensitive resin material 7 that is likely to be generated, for example, a colored layer 4R made of a red colored photosensitive resin material, and a colored photosensitive resin material 8 in which the other colored layer 4 does not cause electrode disconnection at its end, for example, a blue colored In the portion formed of the colored layer 4B made of a photosensitive resin material, the end of one colored layer 4R is, for example, 50 μm on the light shielding portion 3a by the other colored layer 4B.
Each of the colored layers 4R is formed using a mask pattern that covers the end of the colored layer 4R with the other colored layer 4B so that the colored layer 4B can be covered so as to overlap by about m.
【００５７】さらに、相互に隣位する着色層４の両者が
ともにその端部で電極断線を生じやすい着色感光性樹脂
材料７、例えば赤色の着色感光性樹脂材料からなる着色
層４Ｒが相互に隣位するように形成されている部位にお
いては、図６に示すように、両着色層４Ｒ，４Ｒを遮光
部３ａ上で隙間６を介して隣接させ、かつ、隙間６およ
び相互に隣位する両着色層４Ｒ，４Ｒの端部を電極断線
を生じない感光性樹脂材料１０として機能する青の着色
感光性樹脂材料による着色層４Ｂにより、例えば５０μ
ｍ程度オーバーラップするように覆うことができるよう
に、両着色層４Ｒ，４Ｒの端部を電極断線を生じない感
光性樹脂材料１０で被覆するマスクパターンを用いて形
成する。Further, both the colored layers 4 adjacent to each other are adjacent to each other, and the colored photosensitive resin material 7, for example, a red colored photosensitive resin material, which is liable to cause electrode disconnection at its end, is adjacent to each other. As shown in FIG. 6, the colored layers 4R, 4R are adjacent to each other via the gap 6 on the light-shielding portion 3a, and the gap 6 and both adjacent layers are located on the light-shielding portion 3a. The end portions of the colored layers 4R, 4R are formed by a colored layer 4B made of a blue colored photosensitive resin material that functions as a photosensitive resin material 10 that does not cause electrode disconnection.
The colored layers 4R, 4R are formed using a mask pattern that covers the edges of the colored layers 4R, 4R with a photosensitive resin material 10 that does not cause electrode disconnection so that the colored layers 4R, 4R can be covered so as to overlap by about m.
【００５８】またさらに、相互に隣位する着色層４の両
者がともにその端部で電極断線を生じない着色感光性樹
脂材料からなる着色層４、例えば青色の着色感光性樹脂
材料からなる着色層４Ｂが相互隣位するように形成され
ている部位においては、図７に示すように、遮光部３ａ
上で、いずれか一方の着色層４Ｂの端部を他方の着色層
４Ｂで、例えば５０μｍ程度オーバーラップするように
覆う。Further, the colored layer 4 made of a colored photosensitive resin material in which both of the colored layers 4 adjacent to each other do not cause electrode disconnection at the ends thereof, for example, a colored layer made of a blue colored photosensitive resin material As shown in FIG. 7, the light shielding portions 3a
Above, the end of one of the colored layers 4B is covered with the other colored layer 4B so as to overlap, for example, about 50 μm.
【００５９】その後、透明電極形成工程において、各着
色層４を形成した透明基板２の表面に、従来と同様に、
ＩＴＯなどからなる所定パターンの透明電極５を形成す
ることにより、本実施形態の液晶用カラーフィルタ１Ａ
が完成する。Thereafter, in a transparent electrode forming step, the surface of the transparent substrate 2 on which the colored layers 4 are formed is formed in the same manner as in the prior art.
By forming the transparent electrode 5 of a predetermined pattern made of ITO or the like, the liquid crystal color filter 1A of the present embodiment is formed.
Is completed.
【００６０】つぎに、前述した構成からなる本実施形態
の作用について説明する。Next, the operation of the present embodiment having the above-described configuration will be described.
【００６１】本実施形態の液晶用カラーフィルタ１Ａに
よれば、電極断線を生じやすい着色感光性樹脂材料で形
成された着色層４の端部を電極断線を生じない着色感光
性樹脂材料８で被覆することができるので、電極断線を
生じやすい着色感光性樹脂材料７で形成される着色層４
の端部の根本部位に残渣があっても透明電極５とは直接
接していないので付着力低下に起因した電極断線が生じ
ない。また、電極断線を生じやすい着色感光性樹脂材料
７で形成された着色層４の端部を電極断線を生じない着
色感光性樹脂材料８で被覆することができるので、着色
層４の端部の耐アルカリ性の悪化に起因する、透明電極
５の着色層４の端部に位置する部位の剥離を防止でき
る。さらに、各着色層４の間の隙間６を電極断線を生じ
ない感光性樹脂材料１０で被覆してなくすことができる
ので、透明電極５を形成する際のポジフォトレジストの
非密着部の発生を誘発することがない。According to the color filter 1A for a liquid crystal of the present embodiment, the edge of the colored layer 4 formed of the colored photosensitive resin material which is apt to cause disconnection of the electrode is covered with the colored photosensitive resin material 8 which does not cause disconnection of the electrode. The colored layer 4 formed of the colored photosensitive resin material 7 which is likely to cause electrode disconnection
Even if there is a residue at the root portion of the end portion, the electrode is not in direct contact with the transparent electrode 5, so that there is no occurrence of electrode disconnection due to reduced adhesive force. In addition, since the end of the colored layer 4 formed of the colored photosensitive resin material 7 that easily causes the electrode disconnection can be covered with the colored photosensitive resin material 8 that does not cause the electrode disconnection, the end of the colored layer 4 can be covered. It is possible to prevent exfoliation of a portion of the transparent electrode 5 located at the end of the colored layer 4 due to deterioration of the alkali resistance. Further, since the gaps 6 between the colored layers 4 can be covered with the photosensitive resin material 10 which does not cause the disconnection of the electrodes, the non-adhesion portions of the positive photoresist at the time of forming the transparent electrodes 5 can be prevented. Does not trigger.
【００６２】したがって、本実施形態の液晶用カラーフ
ィルタ１Ａによれば、透明電極５の断線たる電極断線を
確実かつ容易に防止することができる。Therefore, according to the liquid crystal color filter 1A of the present embodiment, the disconnection of the transparent electrode 5, that is, the disconnection of the electrode can be reliably and easily prevented.
【００６３】また、本実施形態の液晶用カラーフィルタ
１Ａの製造方法によれば、本実施形態の液晶用カラーフ
ィルタ１Ａを容易に製造することができる。Further, according to the method of manufacturing the liquid crystal color filter 1A of the present embodiment, the liquid crystal color filter 1A of the present embodiment can be easily manufactured.
【００６４】なお、前述した各実施形態の製造方法を用
いて製造した液晶用カラーフィルタ１，１Ａにおいて
は、電極断線の発生がないことが実際の製造により確認
できた。In the liquid crystal color filters 1 and 1A manufactured using the manufacturing method of each of the above-described embodiments, it was confirmed by actual manufacturing that no electrode disconnection occurred.
【００６５】また、本発明は、前記各実施形態に限定さ
れるものではなく、必要に応じて種々変更することがで
きる。The present invention is not limited to the above embodiments, but can be variously modified as needed.
【００６６】[0066]
【発明の効果】以上説明したように請求項１に係る本発
明の液晶用カラーフィルタによれば、着色層の端部を遮
光部で被覆することができるので、透明電極の断線を確
実に防止することができるなどの極めて優れた効果を奏
する。また、請求項２に係る本発明の液晶用カラーフィ
ルタによれば、電極断線を生じやすい着色感光性樹脂材
料で形成された着色層の端部を電極断線を生じない着色
感光性樹脂材料で被覆することができるので透明電極の
断線を確実に防止することができるなどの極めて優れた
効果を奏する。As described above, according to the color filter for liquid crystal of the present invention according to the first aspect, the end of the colored layer can be covered with the light-shielding portion, so that the disconnection of the transparent electrode is reliably prevented. It has an extremely excellent effect that it can be performed. According to the color filter for a liquid crystal of the present invention according to the second aspect, the end of the colored layer formed of the colored photosensitive resin material which is apt to cause the disconnection of the electrode is covered with the colored photosensitive resin material which does not cause the disconnection of the electrode. Therefore, an extremely excellent effect such as the disconnection of the transparent electrode can be surely prevented.
【００６７】また、請求項３に係る本発明の液晶用カラ
ーフィルタの製造方法によれば、着色層の端部を遮光部
で被覆することができるので、透明電極の断線を確実に
防止することができるなどの極めて優れた効果を奏す
る。したがって、請求項１に係る本発明の液晶用カラー
フィルタを容易に製造することができる。Further, according to the method for manufacturing a color filter for liquid crystal of the present invention according to the third aspect, since the end of the colored layer can be covered with the light shielding portion, the disconnection of the transparent electrode can be reliably prevented. It has extremely excellent effects such as the ability to produce Therefore, the liquid crystal color filter according to the first aspect of the present invention can be easily manufactured.
【００６８】また、請求項４に係る本発明の液晶用カラ
ーフィルタの製造方法によれば、電極断線を生じやすい
着色感光性樹脂材料で形成された着色層の端部を電極断
線を生じない着色感光性樹脂材料で被覆することができ
るので、透明電極の断線を確実に防止することができる
などの極めて優れた効果を奏する。したがって、請求項
２に係る本発明の液晶用カラーフィルタを容易に製造す
ることができる。Further, according to the method of manufacturing a color filter for a liquid crystal of the present invention, the end of the colored layer formed of the colored photosensitive resin material which is apt to cause the disconnection of the electrode is colored so as not to cause the disconnection of the electrode. Since the transparent electrode can be covered with the photosensitive resin material, an extremely excellent effect such as disconnection of the transparent electrode can be surely prevented. Therefore, the color filter for liquid crystal of the present invention according to claim 2 can be easily manufactured.
【図１】 本発明に係る液晶用カラーフィルタの第１実
施形態の要部の断面構造を示す説明図FIG. 1 is an explanatory view showing a cross-sectional structure of a main part of a first embodiment of a liquid crystal color filter according to the present invention.
【図２】 図１に示す液晶用カラーフィルタの相互に隣
位する着色層の相互に隣位する相互間の形状を示す拡大
説明図FIG. 2 is an enlarged explanatory view showing the shape of a mutually adjacent colored layer of the color filter for liquid crystal shown in FIG. 1;
【図３】 本発明に係る液晶用カラーフィルタの製造方
法の第１実施形態の要部を製造工程に沿って示すブロッ
ク図FIG. 3 is a block diagram showing a main part of a first embodiment of a method of manufacturing a color filter for liquid crystal according to the present invention along a manufacturing process.
【図４】 本発明に係る液晶用カラーフィルタの第２実
施形態の要部の断面構造を示す説明図FIG. 4 is an explanatory view showing a cross-sectional structure of a main part of a second embodiment of the color filter for liquid crystal according to the present invention.
【図５】 図４に示す液晶用カラーフィルタの相互に隣
位する着色層のうちの一方の着色層がその端部で電極断
線を生じやすい着色感光性樹脂材料で形成され他方の着
色層がその端部で電極断線を生じない着色感光性樹脂材
料で形成されている部位における着色層の相互に隣位す
る相互間の形状を示す拡大説明図FIG. 5 is a cross-sectional view of a color filter for a liquid crystal shown in FIG. 4 in which one of color layers adjacent to each other is formed of a colored photosensitive resin material which is apt to cause electrode disconnection at its end; FIG. 2 is an enlarged explanatory view showing a shape of a colored layer adjacent to each other at a portion formed of a colored photosensitive resin material that does not cause electrode disconnection at its end.
【図６】 図４に示す液晶用カラーフィルタの相互に隣
位する着色層の両者がともにその端部で電極断線を生じ
やすい着色感光性樹脂材料で形成されている部位におけ
る着色層の相互に隣位する相互間の形状を示す拡大説明
図FIG. 6 is a cross-sectional view of a portion of a color filter for a liquid crystal shown in FIG. 4 in a region where both adjacent colored layers are formed of a colored photosensitive resin material which is apt to cause electrode disconnection at its ends; Enlarged explanatory view showing the shape between adjacent ones
【図７】 図４に示す液晶用カラーフィルタの相互に隣
位する着色層の両者がともにその端部で電極断線を生じ
ない着色感光性樹脂材料で形成されている部位における
着色層の相互に隣位する相互間の形状を示す拡大説明図FIG. 7 is a cross-sectional view of a portion of a color filter for a liquid crystal shown in FIG. 4 in which both adjacent colored layers are formed of a colored photosensitive resin material which does not cause electrode disconnection at both ends; Enlarged explanatory view showing the shape between adjacent ones
【図８】 本発明に係る液晶用カラーフィルタの製造方
法の第２実施形態の要部を製造工程に沿って示すブロッ
ク図FIG. 8 is a block diagram showing a main part of a second embodiment of a method for manufacturing a color filter for liquid crystal according to the present invention along a manufacturing process.
【図９】 従来の液晶用カラーフィルタにおける着色層
の端部に生じる残渣および電極断線の一例を説明する説
明図FIG. 9 is an explanatory view illustrating an example of a residue generated at an end portion of a colored layer and an electrode disconnection in a conventional liquid crystal color filter.
１、１Ａ 液晶用カラーフィルタ ２ 透明基板 ３ 遮光マスク ３ａ 遮光部 ３ｂ 光透過開口部 ４ 着色層 ４Ｒ （赤の）着色層 ４Ｇ （緑の）着色層 ４Ｂ （青の）着色層 ５ 透明電極 ６ 隙間 ７ （端部で電極断線を生じやすい）着色感光性樹脂材
料 ８ （端部で電極断線を生じない）着色感光性樹脂材料 １０ （端部で電極断線を生じない）感光性樹脂材料DESCRIPTION OF SYMBOLS 1, 1A Liquid crystal color filter 2 Transparent substrate 3 Light-shielding mask 3a Light-shielding part 3b Light transmission opening 4 Colored layer 4R (red) colored layer 4G (green) colored layer 4B (blue) colored layer 5 Transparent electrode 6 Clearance 7 Colored photosensitive resin material (prone to electrode disconnection at the end) 8 Colored photosensitive resin material (does not cause electrode disconnection at the end) 10 Photosensitive resin material (does not cause electrode disconnection at the end)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 睦 東京都荒川区東日暮里５丁目７番18号 オ プトレックス株式会社内 Ｆターム(参考） 2H048 BA45 BB01 BB07 BB14 BB24 BB44 2H091 FA02Y FA34Y FB04 FD04 GA03 LA02 LA30 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mutsumi Abe 5-7-18 Higashi-Nippori, Arakawa-ku, Tokyo Optrex Corporation F-term (reference) 2H048 BA45 BB01 BB07 BB14 BB24 BB44 2H091 FA02Y FA34Y FB04 FD04 GA03 LA02 LA30
Claims (4)
される遮光部およびこの遮光部の所定位置に設けられる
複数の光透過開口部を具備する遮光マスク、および、こ
の遮光マスクの光透過開口部に着色感光性樹脂材料から
形成された複数色の着色層と、前記遮光マスクおよび各
着色層の表面に直接形成される透明電極とを有する液晶
用カラーフィルタにおいて、 前記各着色層の端部を前記遮光部下で隣接させたことを
特徴とする液晶用カラーフィルタ。1. A light-shielding mask including a transparent substrate, a light-shielding portion formed on the surface of the transparent substrate, and a plurality of light-transmitting openings provided at predetermined positions of the light-shielding portion, and light transmission of the light-shielding mask. In a liquid crystal color filter having a plurality of colored layers formed of a colored photosensitive resin material in openings and a transparent electrode formed directly on the surface of the light-shielding mask and each colored layer, an end of each colored layer A color filter for a liquid crystal, wherein the portions are adjacent to each other under the light shielding portion.
される遮光部およびこの遮光部の所定位置に設けられる
複数の光透過開口部を具備する遮光マスク、および、こ
の遮光マスクの光透過開口部に着色感光性樹脂材料から
形成された複数色の着色層と、前記遮光マスクおよび各
着色層の表面に直接形成される透明電極とを有する液晶
用カラーフィルタにおいて、 前記各着色層を前記遮光マスクの遮光部上で隣接させる
とともに、各着色層のうち、着色層の端部で電極断線を
生じやすい着色感光性樹脂材料からなる着色層の端部
を、着色層の端部で電極断線を生じない着色感光性樹脂
材料からなる着色層で被覆したことを特徴とする液晶用
カラーフィルタ。2. A light-shielding mask having a transparent substrate, a light-shielding portion formed on the surface of the transparent substrate, and a plurality of light-transmitting openings provided at predetermined positions of the light-shielding portion, and light transmission of the light-shielding mask. In a color filter for liquid crystal having a plurality of colored layers formed of a colored photosensitive resin material in openings, and a transparent electrode formed directly on the surface of the light-shielding mask and each colored layer, Adjacent on the light-shielding portion of the light-shielding mask, and among the colored layers, the edge of the colored layer made of a colored photosensitive resin material that is liable to cause electrode disconnection at the edge of the colored layer, and the electrode disconnected at the edge of the colored layer A color filter for a liquid crystal, characterized by being coated with a colored layer made of a colored photosensitive resin material that does not cause bleeding.
される遮光部およびこの遮光部の所定位置に設けられる
複数の光透過開口部を具備する遮光マスク、および、こ
の遮光マスクの光透過開口部に着色感光性樹脂材料から
形成された複数色の３色の着色層と、前記遮光マスクお
よび各着色層の表面に直接形成される透明電極とを有す
る液晶用カラーフィルタの製造方法において、 前記透明基板の表面に着色感光性樹脂材料から形成され
た複数色の着色層を任意の順序で形成した後に、前記遮
光マスクを形成し、その後、前記透明電極を形成するこ
とを特徴とする液晶用カラーフィルタの製造方法。3. A light-shielding mask having a transparent substrate, a light-shielding portion formed on the surface of the transparent substrate, and a plurality of light-transmitting openings provided at predetermined positions of the light-shielding portion, and light transmission of the light-shielding mask. In a method for manufacturing a color filter for a liquid crystal having a three-colored color layer of a plurality of colors formed from a colored photosensitive resin material in an opening, and a transparent electrode formed directly on the surface of the light-shielding mask and each colored layer, After forming a colored layer of a plurality of colors formed of a colored photosensitive resin material on the surface of the transparent substrate in an arbitrary order, forming the light-shielding mask, and then forming the transparent electrode. Method of manufacturing color filter for use.
される遮光部およびこの遮光部の所定位置に設けられる
複数の光透過開口部を具備する遮光マスク、および、こ
の遮光マスクの光透過開口部に着色感光性樹脂材料から
形成された複数色の着色層と、前記遮光マスクおよび各
着色層の表面に直接形成される透明電極とを有する液晶
用カラーフィルタの製造方法において、 前記透明基板の表面に前記遮光マスクを形成した後に、
前記遮光マスクの光透過開口部に着色感光性樹脂材料か
ら形成された複数色の着色層を、着色層の端部で電極断
線を生じやすい着色感光性樹脂材料からなる着色層を先
に形成し、着色層の端部で電極断線を生じない着色感光
性樹脂材料からなる着色層を後から形成し、その後、前
記透明電極を形成することを特徴とする液晶用カラーフ
ィルタの製造方法。4. A light-shielding mask having a transparent substrate, a light-shielding portion formed on the surface of the transparent substrate, and a plurality of light-transmitting openings provided at predetermined positions of the light-shielding portion, and light transmission of the light-shielding mask. In the method for manufacturing a color filter for a liquid crystal having a plurality of colored layers formed of a colored photosensitive resin material in openings and a transparent electrode formed directly on the surface of the light-shielding mask and each colored layer, the transparent substrate After forming the light-shielding mask on the surface of
A plurality of colored layers formed from a colored photosensitive resin material are formed in the light transmitting openings of the light-shielding mask, and a colored layer made of a colored photosensitive resin material that easily causes electrode disconnection at an end of the colored layer is formed first. A method for manufacturing a color filter for liquid crystal, characterized in that a colored layer made of a colored photosensitive resin material that does not cause electrode disconnection at an end of the colored layer is formed later, and then the transparent electrode is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34140399A JP4095214B2 (en) | 1999-11-30 | 1999-11-30 | Color filter for liquid crystal and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34140399A JP4095214B2 (en) | 1999-11-30 | 1999-11-30 | Color filter for liquid crystal and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001154012A true JP2001154012A (en) | 2001-06-08 |
| JP4095214B2 JP4095214B2 (en) | 2008-06-04 |
Family
ID=18345806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34140399A Expired - Fee Related JP4095214B2 (en) | 1999-11-30 | 1999-11-30 | Color filter for liquid crystal and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4095214B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006201596A (en) * | 2005-01-21 | 2006-08-03 | Future Vision:Kk | Color filter substrate and liquid crystal display device using the color filter substrate |
| CN1313870C (en) * | 2003-05-09 | 2007-05-02 | 统宝光电股份有限公司 | Colour optical filter and producing method thereof |
| KR20160007658A (en) * | 2013-06-17 | 2016-01-20 | 애플 인크. | Display with color mixing prevention structures |
-
1999
- 1999-11-30 JP JP34140399A patent/JP4095214B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313870C (en) * | 2003-05-09 | 2007-05-02 | 统宝光电股份有限公司 | Colour optical filter and producing method thereof |
| JP2006201596A (en) * | 2005-01-21 | 2006-08-03 | Future Vision:Kk | Color filter substrate and liquid crystal display device using the color filter substrate |
| JP4488913B2 (en) * | 2005-01-21 | 2010-06-23 | 株式会社フューチャービジョン | Color filter substrate and liquid crystal display device using the color filter substrate |
| KR20160007658A (en) * | 2013-06-17 | 2016-01-20 | 애플 인크. | Display with color mixing prevention structures |
| KR102075818B1 (en) * | 2013-06-17 | 2020-02-10 | 애플 인크. | Display with color mixing prevention structures |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4095214B2 (en) | 2008-06-04 |
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