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JPS63276003A - Color filter manufacturing method - Google Patents

Color filter manufacturing method

Info

Publication number
JPS63276003A
JPS63276003AJP62112130AJP11213087AJPS63276003AJP S63276003 AJPS63276003 AJP S63276003AJP 62112130 AJP62112130 AJP 62112130AJP 11213087 AJP11213087 AJP 11213087AJP S63276003 AJPS63276003 AJP S63276003A
Authority
JP
Japan
Prior art keywords
glass substrate
dyestuff
color filter
dyeing
dyed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62112130A
Other languages
Japanese (ja)
Inventor
Hiroyuki Fujii
藤井 浩之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Casio Computer Co LtdfiledCriticalCasio Computer Co Ltd
Priority to JP62112130ApriorityCriticalpatent/JPS63276003A/en
Publication of JPS63276003ApublicationCriticalpatent/JPS63276003A/en
Pendinglegal-statusCriticalCurrent

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Abstract

PURPOSE:To surely eliminate a residual film and a dyeing dyestuff of a part where no color filter exists, by forming a color filter on a glass substrate, and thereafter, executing the washing by radiating ultraviolet rays. CONSTITUTION:Color filters R, G and B are formed by immersing a glass substrate 1 into a water solution containing a dyestuff, and dyeing a prescribed dyestuff to a layer to be dyed. In such a way when said substrate is immersed in the water solution containing the dyestuff and dyed, the dyestuff adheres to other art than the layer to be dyed, too, and especially, it adheres in large quantities, when adherence force to the glass substrate 1 has been strengthened, and also, it is adsorbed in large quantities to the glass substrate 1 using a dyestuff having a good dyeing property. Therefore after the dyeing and the fixation processing have been executed, the glass substrate 1 is washed by radiating ultraviolet rays 6, and an unnecessary matter adhering to the glass substrate 1 is eliminated. In such a way, a residual film and a dyeing dyestuff of a part where no color filter exists can be eliminated surely.

Description

Translated fromJapanese

【発明の詳細な説明】〔発151の技術分子n]この発IJJはカラーフィルタのSJ造方法に関する。[Detailed description of the invention][Technical molecule n of 151]This IJJ relates to a SJ manufacturing method for color filters.

[従来技術]従来、カラー液晶表示装置は一対のガラス基板のうち、
少なくとも一方にカラーフィルタを設置シテいる。この
ようなカラーフィルタの製造方法は、一般に染色法によ
ることが多く、これは以下のような工程を経て製造され
ている。即ち。
[Prior Art] Conventionally, in a color liquid crystal display device, one of the pair of glass substrates is
Install a color filter on at least one side. Such color filters are generally manufactured by a dyeing method, which is manufactured through the following steps. That is.

(1)透Ij1導電膜にて電極を形成したガラス基板に
感光性および染色性を有する天然あるいは合成樹脂を塗
布する工程(2)被染色層のうち、残したい部分にのみ紫外線を照
射し、現像処理を行なって被染色層をパターン形成する
工程(3)染料を含む水溶液中に浸漬し、被染色層に染ネ1
を染若させる工程を経てガラス基板にカラーフィルタを形成している。こ
のようにして得られたガラス基板は2通常の製造工程に
よりカラー液晶表示装ことして組み付けられる。
(1) A step of applying a photosensitive and dyeable natural or synthetic resin to a glass substrate on which electrodes are formed using a transparent IJ1 conductive film. (2) Irradiating ultraviolet rays only to the portions of the layer to be dyed that are to be left; Step (3) of performing a development process to form a pattern on the layer to be dyed (3) Immersing it in an aqueous solution containing a dye, and applying dye 1 to the layer to be dyed.
A color filter is formed on a glass substrate through a dyeing process. The glass substrate thus obtained is assembled into a color liquid crystal display through two conventional manufacturing steps.

【従来技術の問題点]しかし、上記のようなカラーフィルタの製造方法におい
ては、非露光部に残存する被染色材料分子の単層膜に染
料分子が染若したり、あるいは吸着性の大きし゛染ネ1
が基板に吸着したりすると言うことカ起こる。特に、非
露光部の残存膜に関しては基板と被染色材料との密着力
を強めた場合に多く発生する傾向があり、また染料のノ
^板への吸着に関しては染料の種類によるところが多く
、染色性の良い染料はガラス基板への吸着も多いという
傾向がある。そのため、シール強度が弱くなったり、端
子部の接続が悪くなったり、液晶層内に染ネ1が溶出し
て液晶の動作信頼性が低下する等の問題が発生する。こ
のような問題を解決するために、メタノール洗浄等で対
処しているが、十分な効果が得られない場合が多く、し
かも工程的にも不安定であるという問題がある。
[Problems with the prior art] However, in the method of manufacturing a color filter as described above, dye molecules may stain a monolayer film of dyed material molecules remaining in non-exposed areas, or the dye molecules may have a large adsorption property. Somene 1
This happens when the material is adsorbed to the substrate. In particular, residual film in non-exposed areas tends to occur more often when the adhesion between the substrate and the material to be dyed is strengthened, and adsorption of the dye to the plate largely depends on the type of dye; Dyes with good properties tend to be more adsorbed to glass substrates. As a result, problems occur, such as the sealing strength becoming weak, the connection of the terminals becoming poor, and the stain 1 leaching into the liquid crystal layer, reducing the operational reliability of the liquid crystal. In order to solve these problems, methanol cleaning and the like are used, but in many cases sufficient effects are not obtained and there is also the problem that the process is unstable.

【発明の[1的〕この発明は上述した事情に鑑みてなされたもので、その
目的とするところは、カラーフィルりのない部分の残存
膜や染着染料を確実に除去でき、液晶表示装置に用いた
際にその信頼性を高めることができるカラーフィルタの
製造方法を提供することにある。
[Object 1] This invention has been made in view of the above-mentioned circumstances, and its purpose is to reliably remove residual films and dyes in areas where there is no color fill, and to improve the quality of liquid crystal display devices. An object of the present invention is to provide a method for manufacturing a color filter that can improve its reliability when used in a color filter.

[発明の要点]この発IJ1は上述した目的を達成するために、ガラス
ノ人板上にカラーフィルタを形成した後、紫外線の照射
により洗浄を行なうことを要点とする。
[Summary of the Invention] In order to achieve the above-mentioned object, the main point of this IJ1 is to form a color filter on a glass plate and then clean it by irradiating it with ultraviolet rays.

[実施例]以下、第1図から第3図を参照して、この発明に係るカ
ラーフィルタの製造方法を説明する。
[Example] Hereinafter, a method for manufacturing a color filter according to the present invention will be described with reference to FIGS. 1 to 3.

予め、第1図に示すように、透明なガラス基板l上に縦
方向(上下方向)に細長い信号電極2・・・を多数配列
形成するとともに、ガラス基板lの上下端にそれぞれ電
極端子3・・・を配列形成し、かつこれら信号電極2・
・・と電極端子3・・・との間にこれらを相互に接続す
るリード4・・・を形成する。この場合、信号電極2・
・・はITO(酸化インジウムと酸化スズとの混合物)
等の透明な導電材料からなっている。
As shown in FIG. 1, a large number of elongated signal electrodes 2 are formed in advance in the vertical direction (vertical direction) on a transparent glass substrate l, and electrode terminals 3 are formed on the upper and lower ends of the glass substrate l, respectively. ..., and these signal electrodes 2.
. . . and the electrode terminals 3 . . . and leads 4 . . . to interconnect them are formed. In this case, the signal electrode 2
... is ITO (mixture of indium oxide and tin oxide)
It is made of transparent conductive material such as.

このように信号電極2・・・、電極端子3・・・、およ
びリード4・・・が形成されたガラス基板l上に感光性
および染色性を有する天然あるいは合成樹脂等を塗布す
る。そして、この塗布された膜のうち、残したい部分、
つまり信号電極2・・・上にのみ紫外線を黒射し、現像
処理を行なって信号電極2・・・上に被染色層をパター
ン形成する。この後、染料を含む水溶液中にガラス基板
lを浸漬し、被染色層に所定の染料を染着して、カラー
フィルタを形成する。この場合、染料としては赤色、緑
色、青色の3色であり、カラーフィルタとしては赤色フ
ィルタR1緑色フィルタG、青色フィルタBの3種類が
形成される。このように染料を含む水溶液中に浸漬して
染色すると、被染色層以外の部分にも染料が付着する。
A photosensitive and dyeable natural or synthetic resin or the like is applied onto the glass substrate l on which the signal electrodes 2, electrode terminals 3, and leads 4 are formed. Then, the part of this applied film that you want to leave,
That is, ultraviolet rays are irradiated only onto the signal electrodes 2, and a development process is performed to form a pattern of the layer to be dyed on the signal electrodes 2. Thereafter, the glass substrate l is immersed in an aqueous solution containing a dye, and the layer to be dyed is dyed with a predetermined dye to form a color filter. In this case, the dyes are of three colors, red, green, and blue, and the three types of color filters are formed: a red filter R1, a green filter G, and a blue filter B. When immersed in an aqueous solution containing a dye and dyed in this way, the dye adheres to parts other than the layer to be dyed.

#に、ガラス基板lとの密着力を強めた場合には多く付
着し、また染色性の良い染料を用いるとガラス基板lへ
の吸着も多くなる。
If the adhesion to the glass substrate 1 is strengthened, more will adhere to #, and if a dye with good dyeing properties is used, more will be adsorbed to the glass substrate 1.

そこで、染色および固着処理を行なった後、第2図に示
すように、紫外線を照射してガラス基板lを洗浄し、ガ
ラスノ人板lに付着した不要な物を除去する。即ち、紫
外線の照射による洗浄は、紫外線により有機物を直接分
解、または活性化して酸化作用を起こし易くすると同時
に、紫外線の作用で発生したオゾンから分離した活性化
酸素の酸化作用で、有機物を揮発性の物質に分解変化さ
せて除去するものである。この場合、光源6としては低
圧水銀灯を使用し、主に185n層と254n鳳の紫外
線を照射する。この洗浄により、特にガラス基板lに吸
着したrcI acid Blue HJ ノ染料が分
解除去され、非露光部の透過率が良くなるとともに、カ
ラーフィルタR,G、Hの膜荒れもほとんど発生しない
Therefore, after the dyeing and fixing treatments are performed, as shown in FIG. 2, the glass substrate l is irradiated with ultraviolet rays to clean the glass substrate l to remove unnecessary substances attached to the glass plate l. In other words, cleaning by ultraviolet irradiation directly decomposes or activates organic substances using ultraviolet rays, making them more likely to cause oxidation.At the same time, the oxidation effect of activated oxygen separated from ozone generated by the action of ultraviolet rays makes organic substances volatile. It decomposes and changes into substances and removes them. In this case, a low-pressure mercury lamp is used as the light source 6, and mainly irradiates ultraviolet rays of 185n layer and 254n layer. This cleaning particularly decomposes and removes the rcI acid Blue HJ dye adsorbed on the glass substrate 1, improves the transmittance of non-exposed areas, and hardly causes film roughness of the color filters R, G, and H.

このようにカラーフィルタR,G、Bが形成されたガラ
ス基板lを用いて、第3図に示すように、カラー液晶表
示装211Oを組み立てる場合には、まず、上述したガ
ラス基板lの表面に信号電極2・・・およびその上に形
成された各色のカラーフィルタR,G、Bllって配向
膜7を形成するとともに、この配向膜7を囲むように枠
状のシール材8を設ける。そして、このガラス基板l上
にシール材8を介して、これと対向する下面に信号電極
2・・・と直交する走査電極11a・・・およびこの走
査電極11a・・・を覆う配向膜11bを有するガラス
基板11を配・21して接着し、この上下のガラス基板
1.11間でシール材8により囲まれた内部に液晶材1
3を封入し、さらに、上下の各ガラス基板1.11の外
側面に偏光板114.14を設ける。これにより、カラ
ー液晶表示装置lOが製作される。
When assembling a color liquid crystal display device 211O as shown in FIG. 3 using the glass substrate l on which the color filters R, G, and B are formed, first, the surface of the glass substrate l described above is An alignment film 7 is formed by the signal electrodes 2 . Then, scanning electrodes 11a perpendicular to the signal electrodes 2 and alignment films 11b covering the scanning electrodes 11a are formed on the glass substrate l via the sealing material 8 on the lower surface opposite to the glass substrate l. A liquid crystal material 1 is placed between the upper and lower glass substrates 1 and 11 surrounded by a sealing material 8.
Further, a polarizing plate 114.14 is provided on the outer surface of each of the upper and lower glass substrates 1.11. As a result, a color liquid crystal display device IO is manufactured.

このように製造されたカラー液晶表示装2110は、カ
ラーフィルタR,G、Bを形成した後、そのガラス基板
lを紫外線の照射で洗浄したので。
In the color liquid crystal display device 2110 manufactured in this way, after the color filters R, G, and B were formed, the glass substrate l was cleaned by irradiation with ultraviolet rays.

カラーフィルタ以外の部分に付着した染料等の不要な物
質が確実かつ良好に除去されて透過率が良くなるととも
に、カラーフィルタR,G、Hの荒れもほとんど発生せ
ず、そのため内部に封入された液晶材13の動作信頼性
が高くなるとともに、鮮明に画像等の情報を表示するこ
とができる。
Unnecessary substances such as dyes adhering to areas other than the color filters are reliably and efficiently removed, improving transmittance, and the color filters R, G, and H are hardly roughened, and therefore the color filters sealed inside are The operational reliability of the liquid crystal material 13 is increased, and information such as images can be displayed clearly.

[5F、明の効果]以上詳細に説明したように、この発明に係るカラーフィ
ルタの製造方法によれば、ガラス基板上にカラーフィル
タを形成した後、紫外線の照射により洗浄を行なうよう
にしたので、カラーフィルタのない部分の残存膜や染着
染料を確実に除去でき、液晶表示装置に用いた際にその
信頼性を高めることができる。
[5F, Effect of Brightness] As explained in detail above, according to the method of manufacturing a color filter according to the present invention, after the color filter is formed on the glass substrate, cleaning is performed by irradiation with ultraviolet rays. , it is possible to reliably remove residual films and dyes in areas where there is no color filter, and the reliability of the liquid crystal display device can be improved when used in a liquid crystal display device.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図から第3図はこの発明の一実施例を示し、第1図
はガラス基板上信号電極を形成した状態の平面図、t5
2図は紫外線を照射する状態の断面図、t53図はカラ
ー液晶表示装置の断面図である。1・・・・・・ガラス基板、R,G、B・・・・・・カ
ラーフィルタ、6・・・・・・光源。
1 to 3 show an embodiment of the present invention, and FIG. 1 is a plan view of a state in which signal electrodes are formed on a glass substrate, t5
Figure 2 is a cross-sectional view of the state in which ultraviolet rays are irradiated, and Figure t53 is a cross-sectional view of the color liquid crystal display device. 1... Glass substrate, R, G, B... Color filter, 6... Light source.

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]複数色のフィルタが順次配列形成された基板に紫外線を
照射し、前記基板のフィルタを形成した部分以外に付着
した被染色物質および染料を除去することを特徴とする
カラーフィルタの製造方法。
A method for manufacturing a color filter, which comprises irradiating ultraviolet rays onto a substrate on which filters of a plurality of colors are sequentially arranged and removing dyed substances and dyes attached to areas other than the portions of the substrate where the filters are formed.
JP62112130A1987-05-081987-05-08 Color filter manufacturing methodPendingJPS63276003A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP62112130AJPS63276003A (en)1987-05-081987-05-08 Color filter manufacturing method

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP62112130AJPS63276003A (en)1987-05-081987-05-08 Color filter manufacturing method

Publications (1)

Publication NumberPublication Date
JPS63276003Atrue JPS63276003A (en)1988-11-14

Family

ID=14578949

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP62112130APendingJPS63276003A (en)1987-05-081987-05-08 Color filter manufacturing method

Country Status (1)

CountryLink
JP (1)JPS63276003A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US5053298A (en)*1989-12-021991-10-01Samsung Electronics Co., Ltd.Method of manufacturing color filter including exposing planarizing layer through openings in a medium layer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US5053298A (en)*1989-12-021991-10-01Samsung Electronics Co., Ltd.Method of manufacturing color filter including exposing planarizing layer through openings in a medium layer

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