JPH05119211A - Color filter - Google Patents

Color filter

Info

Publication number
JPH05119211A
JPH05119211A JP29970291A JP29970291A JPH05119211A JP H05119211 A JPH05119211 A JP H05119211A JP 29970291 A JP29970291 A JP 29970291A JP 29970291 A JP29970291 A JP 29970291A JP H05119211 A JPH05119211 A JP H05119211A
Authority
JP
Japan
Prior art keywords
color filter
pigment
colored
hues
dye
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
Application number
JP29970291A
Other languages
Japanese (ja)
Other versions
JP3259059B2 (en
Inventor
Masanobu Fujita
昌信 藤田
Saburo Harada
三郎 原田
Tomohisa Honda
知久 本田
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP29970291A priority Critical patent/JP3259059B2/en
Publication of JPH05119211A publication Critical patent/JPH05119211A/en
Application granted granted Critical
Publication of JP3259059B2 publication Critical patent/JP3259059B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To enable selecting spectral characteristics over a wide range while complementing the characteristics of pigments and dyes and to simultaneously obtain a filter having excellent light resistance by dyeing the colored layers which are formed of transparent resins dispersed with pigments by dyes of the same hues as the hues of the dispersed pigments, thereby forming the color filter. CONSTITUTION:The transparent resin dispersed with the pigments is applied on a substrate, by which coloring picture elements 2 are formed. The binder of the colored layer is then dyed by the dye of the same hue, by which the coloring picture elements 3 are formed. The color filter having the coloring picture elements of the plural hues are obtd. by similarly repeating such stage with respective hues. This constitution may be applied to at least one hue and the conventional methods may be applied to the other hues in such a case. The color filter having such structure is irrelevant to the structure of the color filter, such as on-chip color filter or lamination type color filter, and is suitable for the color filter for which light resistance is required.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、カラーフィルターに関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter.

【0002】[0002]

【従来の技術】近年カラーフィルターは、液晶ディスプ
レービデオカメラ用のビューファインダー、CCD撮像
素子の色分解フィルター、カラーイメージセンサー、カ
ラーコピー用のラインセンサーなどに用いられ、各種の
カラーフィルターを用いたこれら工業製品の開発が進め
られている。
2. Description of the Related Art In recent years, color filters have been used in viewfinders for liquid crystal display video cameras, color separation filters for CCD image sensors, color image sensors, line sensors for color copying, etc. Industrial products are being developed.

【0003】これらのカラーフィルター製造方法には、
染色法、顔料分散法、電着法、蒸着法、印刷法などがあ
る。ここでは最も広く行われている染色法および分散法
について述べる。
These color filter manufacturing methods include
There are dyeing method, pigment dispersion method, electrodeposition method, vapor deposition method, printing method and the like. Here, the most widely used dyeing method and dispersion method will be described.

【0004】染色法によるカラーフィルターの着色画素
の形成は、フォトリソグラフィー技術と染色技術により
形成される。染色法ではゼラチン、カゼイン、グリュ
ー、ポリビニルアルコール等の水溶性のポリマーにクロ
ム酸塩あるいは重クロム酸塩等の架橋剤を混合したもの
を感光液とする。これを所定の膜厚にスピンコートし、
プリベークを行う。自然冷却後、マスクアライナー等の
露光装置を用いて露光をおこなう。この様にして形成し
た被染色パタ−ンを酸性染料あるいは反応性染料を用い
て染色する。次に防染層としてアクリル、ウレタン、エ
ポキシ等の中間層を形成する。またこの様な中間層を用
いずにタンニン酸等の化学反応により防染を行う方法も
ある。この一連の工程を同様に繰り返す事により、複数
の色相の着色画素を有するカラーフィルターを形成す
る。
The formation of the colored pixel of the color filter by the dyeing method is formed by the photolithography technique and the dyeing technique. In the dyeing method, a photosensitive solution is prepared by mixing a water-soluble polymer such as gelatin, casein, glue, or polyvinyl alcohol with a crosslinking agent such as chromate or dichromate. Spin coat this to a predetermined thickness,
Pre-bake. After natural cooling, exposure is performed using an exposure device such as a mask aligner. The pattern to be dyed thus formed is dyed with an acid dye or a reactive dye. Next, an intermediate layer of acrylic, urethane, epoxy or the like is formed as a dye-proof layer. There is also a method of carrying out dye-resisting by a chemical reaction of tannic acid or the like without using such an intermediate layer. By repeating this series of steps similarly, a color filter having colored pixels of a plurality of hues is formed.

【0005】染色法によって製造されたカラーフィルタ
ーの特徴は、他法によるカラーフィルターに比べ以下の
様に列挙できる。すなわち、 フォトリソグラフィー法により製版されるので、微細
な着色画素(2μm〜)の形成が可能である点。 染料の種類が豊富であり、かつ複数の染料を組み合わ
せることにより、種々の分光特性が得られる、すなわち
分光特性に対する自由度が大きい点がある。
The characteristics of the color filter manufactured by the dyeing method can be listed as follows as compared with the color filter by other methods. That is, since the plate is made by the photolithography method, it is possible to form fine colored pixels (2 μm or more). There is a wide variety of dyes, and by combining a plurality of dyes, various spectral characteristics can be obtained, that is, there is a large degree of freedom for the spectral characteristics.

【0006】一方、顔料分散法によるカラーフィルター
の着色画素の形成方法は、ゼラチン、ポリビニルアルコ
ール等の水溶性のポリマーに重クロム酸塩等を混合した
透明感光性樹脂に着色剤として有機顔料、無機顔料を分
散した感光液をスピンコートし、染色法カラーフィルタ
ーと同様フォトリソグラフィー技術により形成される。
On the other hand, a method for forming colored pixels of a color filter by a pigment dispersion method is as follows: a transparent photosensitive resin obtained by mixing dichromate with a water-soluble polymer such as gelatin or polyvinyl alcohol is used as an organic pigment or an inorganic pigment. The photosensitive liquid in which the pigment is dispersed is spin-coated and is formed by the photolithography technique as in the dyeing method color filter.

【0007】顔料分散法によって製造されたカラーフィ
ルターの特徴は、他法によるカラーフィルターに比べ以
下の様に列挙できる。すなわち、 染色法の着色画素と同様に、フォトリソグラフィー法
により製版されるので、微細な着色画素(10μm〜)
の形成が可能である点。但し、顔料粒子による光乱反射
作用により染色法に用いられる着色画素よりも解像度に
欠く。 適切な顔料を選択することにより、耐光性、耐熱性、
耐薬品性、耐水性の物性において、染料に比し優れてい
る点。 染色法によるカラーフィルターの様に、染色工程や防
染工程などが必要でないので工程が簡略化される点があ
る。
The characteristics of the color filter manufactured by the pigment dispersion method can be listed as follows as compared with the color filters manufactured by other methods. That is, since the plate is made by the photolithography method in the same manner as the coloring pixel of the dyeing method, fine coloring pixel (10 μm or more)
Can be formed. However, due to the diffused reflection effect of the pigment particles, the resolution is lower than that of the colored pixels used in the dyeing method. By selecting an appropriate pigment, light resistance, heat resistance,
Superior in chemical resistance and water resistance compared to dyes. Unlike a color filter produced by the dyeing method, there is no need for a dyeing process or a dye-proofing process, and thus the process is simplified.

【0008】[0008]

【発明が解決しようとする課題】染色法で形成されたカ
ラーフィルター及び顔料分散法により形成されたカラー
フィルターにはそれぞれ以下の欠点を有している。すな
わち染色法によるカラーフィルターにおいては、 耐光性、耐水性、耐熱性、耐湿性、耐薬品性などのカ
ラーフィルターに要求される物性が満足に満たし得る染
料は少なく、このような物性を満足しつつ所望の分光特
性を有する染料は更に限定されてしまう点。 製造工程で染色基質に染料を吸着させる工程があり、
この時に染色基質が膨潤をきたし、更に後工程における
加温等で収縮が繰り返し起こる事でクラック等が入り外
観不良になる点。 高濃度な染色による着色画素を形成しようとすると、
染料を多量に吸着させるか、染色基質を厚膜にする手段
があるが、この方法を用いると更にクラック等が発生し
易くなり、結局高濃度な色を得る事が困難な点。等欠点
が挙げられる。
The color filter formed by the dyeing method and the color filter formed by the pigment dispersion method respectively have the following drawbacks. That is, in the color filter by the dyeing method, few dyes satisfy the physical properties required for the color filter such as light resistance, water resistance, heat resistance, moisture resistance, and chemical resistance, while satisfying such physical properties. The dye having the desired spectral characteristics is further limited. There is a step of adsorbing the dye on the dyeing substrate in the manufacturing process,
At this time, the dyed substrate swells, and further shrinkage occurs due to heating in a subsequent process, which causes cracks and the like to cause poor appearance. If you try to form a colored pixel with high density dyeing,
There are means for adsorbing a large amount of dye or for thickening the dyeing substrate, but if this method is used, cracks are more likely to occur, and it is difficult to obtain a high-density color after all. There are some drawbacks.

【0009】また、顔料を分散することで形成されたカ
ラーフィルターにおいては、 顔料を保持するバインダー樹脂に対する顔料の分散性
と透明性を満足しつつ、所望の分光特性を有する顔料は
極めて種類が少なく、とりわけブルーやグリーンはフタ
ロシアニン系顔料等に限定される点。 顔料の乱反射により着色画素の彩度が低く、十分な濃
度のカラーフィルターを得ようとすると、明るさが低下
してしまう点。 顔料は紫外線領域の光の吸収が染料より大きいため
に、感光性樹脂の感度が低下してしまう点。等の欠点が
挙げられる。
Further, in a color filter formed by dispersing a pigment, there are very few types of pigment having desired spectral characteristics while satisfying the dispersibility and transparency of the pigment with respect to the binder resin holding the pigment. Especially, blue and green are limited to phthalocyanine pigments. The saturation of the colored pixels is low due to the diffused reflection of the pigment, and the brightness decreases when trying to obtain a color filter with sufficient density. Since the pigment absorbs more light in the ultraviolet range than the dye, the sensitivity of the photosensitive resin decreases. And the like.

【0010】本発明は分光特性が広範囲に選択されつ
つ、優れた耐久性と彩度を有するカラーフィルターを提
供することを目的とする。
It is an object of the present invention to provide a color filter having excellent durability and saturation while having a wide range of spectral characteristics selected.

【0011】[0011]

【課題を解決するための手段】本発明のカラーフィルタ
ーは、以上の問題を解決するべく検討した結果得られた
もので、基板上に規則的に複数の色相の着色画素を配置
してなるカラーフィルターの少なくとも1つの色相の着
色画素において、顔料を分散した透明樹脂により形成し
た着色層を、前記分散した顔料と同一色相の染料により
染色して形成するものである。
The color filter of the present invention has been obtained as a result of studies for solving the above problems, and is a color filter in which colored pixels of a plurality of hues are regularly arranged on a substrate. In at least one hue pixel of the filter, a colored layer formed of a transparent resin in which a pigment is dispersed is dyed with a dye having the same hue as the dispersed pigment.

【0012】また基板上に、顔料を分散した透明樹脂に
より着色層を形成し、さらに次いでこの着色層を前記の
顔料と同一の色相の染料によって染色する工程により、
着色画素を形成して製造することができる。
In addition, a colored layer is formed on the substrate with a transparent resin in which a pigment is dispersed, and then the colored layer is dyed with a dye having the same hue as that of the pigment.
It can be manufactured by forming colored pixels.

【0013】図1から図3に本発明のカラーフィルター
の実施例を断面図により示す。基板上に、顔料を分散し
た透明樹脂を塗布することにより着色画素を形成する
(図1)。次いでこの着色層のバインダーを同一色相の
染料によって染色することにより、着色画素を形成する
(図2)。このような工程を各色相について同様に繰り
返すことによって、複数の色相の着色画素を有する本発
明のカラーフィルターが得られるが(図3)、本発明に
おいては少なくとも1つの色相について上記の構成を適
用し、他の色相については従来から用いられる方法を適
用しても良い。
1 to 3 are sectional views showing an embodiment of a color filter of the present invention. A colored pixel is formed by applying a transparent resin in which a pigment is dispersed on a substrate (FIG. 1). Then, the binder of the colored layer is dyed with a dye having the same hue to form a colored pixel (FIG. 2). By repeating the above steps for each hue in the same manner, a color filter of the present invention having colored pixels of a plurality of hues can be obtained (FIG. 3). However, in the present invention, the above configuration is applied to at least one hue. However, for other hues, a conventionally used method may be applied.

【0014】このような構造をとるカラーフィルター
は、オンチップカラーフィルターあるいは貼り合わせ型
カラーフィルターというようなカラーフィルターの構造
には関係なく、耐光性を必要とするカラーフィルターに
適するものである。
The color filter having such a structure is suitable for a color filter requiring light resistance regardless of the structure of the color filter such as an on-chip color filter or a laminated color filter.

【0015】本発明における「色相」とは、原色タイプ
のカラーフィルターにおいては各色の赤,青,緑の色を
示す。また無彩色ではあるが黒を含むものとする。補色
タイプのカラーフィルターにおいては、マゼンタ,黄,
シアン、緑,または黄,シアン,緑の色を示す。また無
彩色ではあるが黒を含むものとする。
The "hue" in the present invention refers to each color of red, blue and green in a primary color type color filter. In addition, although it is achromatic, it includes black. For complementary color filters, magenta, yellow,
Shows the colors cyan, green, or yellow, cyan, green. In addition, although it is achromatic, it includes black.

【0016】本発明で1つの色相の着色画素に用いる顔
料と染料は、上記した色相が同一であれば良く、同一色
相の範囲内での顔料と染料の分光特性の違いにより、着
色画素の分光特性を補正する場合も本発明は包含するも
のである。
The pigment and dye used for the colored pixel of one hue in the present invention may have the same hue as described above, and due to the difference in the spectral characteristics of the pigment and the dye within the same hue range, the spectrum of the colored pixel may be different. The present invention also includes the case of correcting the characteristics.

【0017】[0017]

【作用】本発明によれば、顔料を分散した着色画素を種
々の染料で染色して着色画素を形成するので、 顔料分散では、感光性樹脂中に予め顔料を分散して着
色画素を形成するが、図4(A)に示すように、顔料は
可視領域の短波長域である400nm付近から柴外領域
にかけて光を大幅にカットしてしまい、感光性樹脂の感
度を低下させてしまうので、この領域の光を透過させよ
うとすると顔料の濃度を低くして図4(B)のような分
光特性の着色画素を形成しなければならず、必要な濃度
の着色画素が得られないため、分光特性上は不利であっ
た。そこで顔料を分散した感光性樹脂によって図4
(B)のような分光特性の着色されたパターン層を予め
形成しておき、この既に着色されたパターン層を染料に
よって染色することにより、高濃度の着色画素を得るこ
とができる。
According to the present invention, a colored pixel in which a pigment is dispersed is dyed with various dyes to form a colored pixel. Therefore, in pigment dispersion, a pigment is previously dispersed in a photosensitive resin to form a colored pixel. However, as shown in FIG. 4 (A), the pigment greatly cuts light from around 400 nm, which is a short wavelength region of the visible region, to the outer region of the shiba, and thus reduces the sensitivity of the photosensitive resin. In order to transmit the light in this region, it is necessary to reduce the concentration of the pigment to form the colored pixel having the spectral characteristic as shown in FIG. 4B, and the colored pixel having the necessary concentration cannot be obtained. It was disadvantageous in terms of spectral characteristics. Therefore, by using a photosensitive resin in which the pigment is dispersed, FIG.
By forming in advance a colored pattern layer having a spectral characteristic as shown in (B) and dyeing this already colored pattern layer with a dye, a high density colored pixel can be obtained.

【0018】青の着色画素を顔料分散法で形成する場
合に、使用する顔料は可視領域の短波長域である400
nm付近から紫外領域にかけての光の透過率について特
性上に問題はないが、図5の曲線aに一例を示すように
ピーク値と半値幅が一定の関係にあって決まっいるの
で、いずれかを単独で変えることは困難である。そこ
で、曲線cで示されるような分光特性が必要な場合に
は、同一色相で分光特性の異なる染料(分光特性曲線
b)により染色し、顔料と染料を組み合わせることよっ
て所望の分光特性を得られることが可能である。
When forming blue colored pixels by the pigment dispersion method, the pigment used is 400, which is a short wavelength region of the visible region.
There is no problem in terms of the characteristics of the light transmittance from near nm to the ultraviolet region, but it is determined that the peak value and the half value width have a constant relationship as shown in the curve a of FIG. It is difficult to change alone. Therefore, when the spectral characteristic shown by the curve c is required, a desired spectral characteristic can be obtained by dyeing with a dye having the same hue but different spectral characteristic (spectral characteristic curve b) and combining the pigment and the dye. It is possible.

【0019】顔料を分散した着色画素を形成した後に
その着色画素を染色液に浸漬させて顔料のバインダーを
染色する方法であるので、製造工程においてコントロー
ルができ分光特性の微妙な調整を行い易い。
This is a method of forming a colored pixel in which a pigment is dispersed and then immersing the colored pixel in a dyeing solution to dye the binder of the pigment. Therefore, it is possible to control in the manufacturing process and to easily finely adjust the spectral characteristics.

【0020】耐光性の優れた顔料を通過した光が染色
されたバインダーを通過することになるので、光が大幅
に減衰されており着色層全体としての耐光性は、染料の
みにより染色された着色層に比べて大幅に向上する。
Since light passing through a pigment having excellent light resistance passes through a dyed binder, the light is greatly attenuated, and the light resistance of the entire coloring layer is the same as that obtained by dyeing with only a dye. Greatly improved compared to layers.

【0021】[0021]

【実施例】本発明のカラーフィルターを固体撮像素子に
適用する場合について説明する。CCDの素子が形成さ
れているP型のSi基板は、受光部と転送部が交互に形
成され凹凸があるため、固体撮像素子上に富士薬品工業
製FVRを1μm塗布して平坦化した。
EXAMPLE A case in which the color filter of the present invention is applied to a solid-state image pickup device will be described. Since the P-type Si substrate on which the CCD element is formed has the unevenness in which the light-receiving portion and the transfer portion are alternately formed, the FVR manufactured by Fuji Yakuhin Kogyo Co., Ltd. is applied to the solid-state image pickup element in an amount of 1 μm to flatten it.

【0022】その後にスピンコーティングにより、カゼ
インと重クロム酸アンモニウムからなる水溶性感光樹脂
液に赤色顔料を5%分散させた膜を、厚さ約1.5μm
塗布形成した。次いで水銀アークランプの紫外光で第一
のマスクを用いて選択的に露光した。この層を現像する
事により顔料で着色されたパターン層を形成した。この
後この基板を赤色染料を溶かした染色浴に浸漬させ、こ
のパターン層を染色した。次いでタンニン酸水溶液と吐
酒石水溶液を用いてこの染色層を防染し赤色着色画素と
した。
Then, by spin coating, a film in which 5% of a red pigment was dispersed in a water-soluble photosensitive resin liquid consisting of casein and ammonium dichromate was formed to a thickness of about 1.5 μm.
It was formed by coating. It was then selectively exposed with the UV light of a mercury arc lamp using the first mask. By developing this layer, a patterned layer colored with a pigment was formed. After that, this substrate was immersed in a dye bath in which a red dye was dissolved to dye this pattern layer. Then, the dyed layer was dye-proofed using a tannic acid aqueous solution and a tartaric acid aqueous solution to obtain red colored pixels.

【0023】同様に青色顔料入り感光液を用いて第二の
パターンにて第二のパターン層を形成し、青色染料によ
って染色して青色着色画素を形成したのち防染処理をし
て、次いで緑色顔料入り感光液を用いて第三のパターン
にて第三のパターン層を形成し、緑色染料により染色し
て緑色着色画素を形成した。
Similarly, a second pattern layer is formed in a second pattern by using a photosensitive solution containing a blue pigment, dyed with a blue dye to form blue colored pixels, and then subjected to a stain-proof treatment, and then a green color. A third pattern layer was formed in a third pattern using a photosensitive liquid containing a pigment, and was dyed with a green dye to form a green colored pixel.

【0024】使用した顔料と染料については表1と表2
に示す。
The pigments and dyes used are shown in Tables 1 and 2
Shown in.

【0025】[0025]

【表1】 [Table 1]

【0026】[0026]

【表2】 [Table 2]

【0027】更に、表面の保護のために最上部に富士薬
品工業のFVRを3μm塗布して、露光、現像を経て保
護膜層を形成しカラー固体撮像素子を得た。
Further, for the protection of the surface, FVR manufactured by Fuji Yakuhin Kogyo Co., Ltd. was coated at 3 μm on the uppermost portion, and after exposure and development, a protective film layer was formed to obtain a color solid-state image pickup device.

【0028】かかるカラー固体撮像素子の分光特性を図
6に実線にて示し、併せて染色前の顔料のみで形成され
たものの分光特性を破線にて示す。これによると、赤色
の分光特性曲線においては、最大透過率の半分になる点
の波長の値は変化することなく、ボトム値(450n
m)が4%から0.2%へ低下した。緑色の分光特性曲
線においては、ボトム値(450nm)が13%から
0.5%へ低下し、ボトム値(650nm)が5%から
0.3%へ低下し、半値幅も100nmから60nmと
なった。青色の分光特性曲線においては、最大透過率の
半分になる点の波長の値が520nmから493nmに
なった。従って、いずれの着色画素についても色純度が
向上し、分光特性上の改善が認められた。
The spectral characteristics of such a color solid-state image pickup device are shown by the solid lines in FIG. 6, and the spectral characteristics of those formed only by the pigment before dyeing are also shown by the broken lines. According to this, in the red spectral characteristic curve, the value of the wavelength at the point where the maximum transmittance becomes half does not change, and the bottom value (450 n
m) decreased from 4% to 0.2%. In the green spectral characteristic curve, the bottom value (450 nm) decreases from 13% to 0.5%, the bottom value (650 nm) decreases from 5% to 0.3%, and the half width also changes from 100 nm to 60 nm. It was In the blue spectral characteristic curve, the value of the wavelength at the point where the maximum transmittance becomes half becomes 520 nm to 493 nm. Therefore, it was confirmed that the color purity of any of the colored pixels was improved and the spectral characteristics were improved.

【0029】次いで、ハロゲン光3000Luxを光源
として500時間光照射して耐光性テストを行ったとこ
ろ、本実施例に係るカラー固体撮像素子では、光照射の
前後で色信号出力に変化がみとめられなかったが、従来
法の染色による着色画素のみで形成したカラー固体撮像
素子を同時に照射したものでは、青で15%、緑で5
%、赤で−4%の色信号出力の変化が認められた。固体
撮像素子自体は当該光照射程度では信号出力の変化は生
じないため、前記従来法によるカラーフィルターの色変
化により色信号出力の変化が生じたものと考えることが
でき、本実施例に係るカラー固体撮像素子のカラーフィ
ルターでは耐光性が改善されることが判った。
Next, a light fastness test was conducted by irradiating light with a halogen light of 3000 Lux as a light source for 500 hours. As a result, in the color solid-state image pickup device according to this embodiment, no change was observed in the color signal output before and after the light irradiation. However, in the case where a color solid-state image sensor formed only by colored pixels by dyeing in the conventional method is simultaneously irradiated, blue is 15% and green is 5%.
%, A change in color signal output of -4% was recognized in red. Since the solid-state imaging device itself does not change the signal output at the degree of light irradiation, it can be considered that the color signal output changes due to the color change of the color filter according to the conventional method. It has been found that the color filter of the solid-state image sensor has improved light resistance.

【0030】この様に形成したカラー固体撮像素子をレ
ンズ系を介して撮像したところ良好な画像が得られた。
When the color solid-state image pickup device thus formed was imaged through a lens system, a good image was obtained.

【0031】なお、感光層膜はカゼイン膜層について例
示したが、カゼインをゼラチンまたはポリビニルアルコ
ールとしたものあるいは更に他の種類の感光膜層であっ
ても本発明は適応できる。更にまた発色領域の色も3原
色に限定されるものではなく、補色系あるいは原色、補
色混合系の場合にも適応される。
Although the casein film layer has been exemplified as the photosensitive layer film, the present invention can be applied to cases in which casein is gelatin or polyvinyl alcohol or other kinds of photosensitive film layers. Furthermore, the colors in the color-developing area are not limited to the three primary colors, and are applicable to the complementary color system or the primary color / complementary color mixture system.

【0032】[0032]

【発明の効果】本発明によれば、染色法によるカラーフ
ィルターの性質を損なうことなく、いわば各々の特徴を
相補う性質を有するカラーフィルターが得られるので、
微細な着色画素を広範囲な分光特性で同時に諸物性が優
れた効果を奏するものである。
According to the present invention, it is possible to obtain a color filter having a property of complementing each other without impairing the properties of the color filter obtained by the dyeing method.
The fine colored pixels have a wide range of spectral characteristics, and at the same time exhibit various physical properties.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 1 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図2】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 2 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図3】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 3 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図4】本発明のカラーフィルターによる短波長側の分
光特性の改善を説明する図。
FIG. 4 is a diagram for explaining improvement of spectral characteristics on the short wavelength side by the color filter of the present invention.

【図5】本発明のカラーフィルターにより所望の分光特
性が得られるようになることを説明する図。
FIG. 5 is a diagram illustrating that a desired spectral characteristic can be obtained by the color filter of the present invention.

【符号の説明】[Explanation of symbols]

1 平坦化層 2 顔料を分散した着色画素 3 顔料と同一色相の染料によって着色した着色画素 4 表面保護層 1 Flattening layer 2 Colored pixel in which pigment is dispersed 3 Colored pixel colored with a dye having the same hue as the pigment 4 Surface protective layer

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成4年10月27日[Submission date] October 27, 1992

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing

【補正方法】追加[Correction method] Added

【補正内容】[Correction content]

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 1 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図2】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 2 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図3】本発明のカラーフィルターの断面図の1例を示
す図。
FIG. 3 is a diagram showing an example of a cross-sectional view of a color filter of the present invention.

【図4】本発明のカラーフィルターによる短波長側の分
光特性の改善を説明する図。
FIG. 4 is a diagram for explaining improvement of spectral characteristics on the short wavelength side by the color filter of the present invention.

【図5】本発明のカラーフィルターにより所望の分光特
性が得られるようになることを説明する図。
FIG. 5 is a diagram illustrating that a desired spectral characteristic can be obtained by the color filter of the present invention.

【図6】本発明のカラーフィルターにより所望の分光特FIG. 6 shows a desired spectral characteristic obtained by the color filter of the present invention.
性が得られるようになることを説明する図。FIG. 6 is a diagram illustrating that the property is obtained.

【符号の説明】 1 平坦化層 2 顔料を分散した着色画素 3 顔料と同一色相の染料によって着色した着色画素 4 表面保護層[Explanation of reference numerals] 1 flattening layer 2 colored pixel in which pigment is dispersed 3 colored pixel colored with dye having the same hue as pigment 4 surface protective layer

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 基板上に規則的に複数の色相の着色画素
を配置してなるカラーフィルターにおいて、少なくとも
一つの色相の着色画素は透明樹脂に顔料を分散すること
により形成され、かつ前記顔料と同一色相の染料によっ
て着色されていることを特徴とするカラーフィルター。
1. In a color filter in which colored pixels of a plurality of hues are regularly arranged on a substrate, at least one colored pixel of a hue is formed by dispersing a pigment in a transparent resin, and A color filter characterized by being colored with a dye having the same hue.
【請求項2】 基板上に規則的に複数の色相の着色画素
を配置してなるカラーフィルターの製造方法において、
少なくとも一つの色相の着色画素を、基板上に顔料を分
散した透明樹脂により着色層を形成する工程と、次いで
該着色層を前記顔料と同一色相の染料によって染色する
工程により形成することを特徴とするカラーフィルター
の製造方法。
2. A method of manufacturing a color filter, in which colored pixels of a plurality of hues are regularly arranged on a substrate,
A colored pixel of at least one hue is formed by a step of forming a colored layer of a transparent resin in which a pigment is dispersed on a substrate, and then a step of dyeing the colored layer with a dye having the same hue as the pigment. Method for manufacturing color filter.
JP29970291A 1991-10-18 1991-10-18 Color filter Expired - Fee Related JP3259059B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29970291A JP3259059B2 (en) 1991-10-18 1991-10-18 Color filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29970291A JP3259059B2 (en) 1991-10-18 1991-10-18 Color filter

Publications (2)

Publication Number Publication Date
JPH05119211A true JPH05119211A (en) 1993-05-18
JP3259059B2 JP3259059B2 (en) 2002-02-18

Family

ID=17875941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29970291A Expired - Fee Related JP3259059B2 (en) 1991-10-18 1991-10-18 Color filter

Country Status (1)

Country Link
JP (1) JP3259059B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712064A (en) * 1994-06-24 1998-01-27 Canon Kabushiki Kaisha Process for producing a color filter and a liquid crystal display device
JP2006237122A (en) * 2005-02-23 2006-09-07 Matsushita Electric Ind Co Ltd Solid state imaging device and its manufacturing method
JP2010189560A (en) * 2009-02-19 2010-09-02 Toppan Printing Co Ltd Red coloring composition, red color filter using the same
JP2010231216A (en) * 2010-04-23 2010-10-14 Dainippon Printing Co Ltd Method and device for manufacturing color filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712064A (en) * 1994-06-24 1998-01-27 Canon Kabushiki Kaisha Process for producing a color filter and a liquid crystal display device
JP2006237122A (en) * 2005-02-23 2006-09-07 Matsushita Electric Ind Co Ltd Solid state imaging device and its manufacturing method
US7791659B2 (en) 2005-02-23 2010-09-07 Panasonic Corporation Solid state imaging device and method for producing the same
JP2010189560A (en) * 2009-02-19 2010-09-02 Toppan Printing Co Ltd Red coloring composition, red color filter using the same
JP2010231216A (en) * 2010-04-23 2010-10-14 Dainippon Printing Co Ltd Method and device for manufacturing color filter

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