JPH01293305A - Production of color filter - Google Patents
Production of color filterInfo
- Publication number
- JPH01293305A JPH01293305A JP63124336A JP12433688A JPH01293305A JP H01293305 A JPH01293305 A JP H01293305A JP 63124336 A JP63124336 A JP 63124336A JP 12433688 A JP12433688 A JP 12433688A JP H01293305 A JPH01293305 A JP H01293305A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- ink
- color element
- element layers
- color
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 230000005291 magnetic effect Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000006249 magnetic particle Substances 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 11
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 3
- 239000005871 repellent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- 238000003848 UV Light-Curing Methods 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 26
- 239000000758 substrate Substances 0.000 description 24
- 238000002834 transmittance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 241000519995 Stachys sylvatica Species 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Optical Filters (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は液晶表示パネルに用いるカラーフィルタの製
造法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for manufacturing color filters used in liquid crystal display panels.
従来の技術
従来、この種のカラーフィルタの製造法は低コスト、大
量生産性から印刷方式が採用されている。2. Description of the Related Art Conventionally, a printing method has been adopted as a manufacturing method for this type of color filter due to its low cost and mass productivity.
すなわち、第６図（ａ）に示すように、版台１上にパタ
ーニングした版２を設置し、この版２の画線部にインキ
つけローラ（図示せず）によりカラーインキ３を着肉し
た後、第５図（ｂ）に示すように、ブランケット胴４上
に装着した弾性体であるブランケット５を版２に押し付
け、ブランケット５面上にインキ３を転移させ、さらに
、第５図（Ｃ）に示すように、このブランケット５を被
印刷基材台８に吸着固定された被印刷基材７に押し付け
、基材７にカラーインキ３を転移させるオフセット印刷
法を用いていた。 上記印刷法により、所定パターン
になるよう色要素１１８をめ刷し、その後、乾燥・硬化
させ、これを繰り返し、第８図に示すように、赤、緑、
青の各色要素層８．９．１０を所定間隔にモザイク状あ
るいはストライブ状等に形成してカラーフィルタを製造
していた。That is, as shown in FIG. 6(a), a patterned plate 2 was placed on a plate stand 1, and color ink 3 was applied to the printed area of the plate 2 using an inking roller (not shown). After that, as shown in FIG. 5(b), the blanket 5, which is an elastic body mounted on the blanket cylinder 4, is pressed against the plate 2, and the ink 3 is transferred onto the surface of the blanket 5. ), an offset printing method was used in which the blanket 5 was pressed against a printing substrate 7 that was suctioned and fixed to a printing substrate table 8, and the color ink 3 was transferred to the substrate 7. By the above printing method, the color elements 118 are printed in a predetermined pattern, then dried and hardened, and this process is repeated to create red, green,
Color filters were manufactured by forming element layers 8, 9, and 10 of each blue color at predetermined intervals in a mosaic shape or stripe shape.
このような製造法では、版２上の色要素層を一度弾性体
であるブランケット５に転移させてから再度被印刷基材
７に転移させるため、インキ３は２回転移しなければな
らなかった。そのため、版２のパターン精度を高くして
も、転移のたびに印圧によるインキのにじみ、ブランケ
ットの変形およびインキの凝集等が原因となって、第６
図に示すように、被印刷基材７に形成された赤、緑、青
の各色要素層８．９．１０のパターン精度が悪くなって
いた。In such a manufacturing method, the ink 3 had to be transferred twice because the color element layer on the plate 2 is transferred once to the blanket 5, which is an elastic body, and then transferred again to the printing substrate 7. Therefore, even if the pattern accuracy of plate 2 is high, every time there is a transfer, ink bleeding due to printing pressure, blanket deformation, ink aggregation, etc.
As shown in the figure, the pattern accuracy of the red, green, and blue color element layers 8, 9, and 10 formed on the printing substrate 7 was poor.
また、上記理由のため、パターニングした版にカラーイ
ンキを着肉させた後、直接版を基材に押し付け、基材に
カラーインキを転移させる直刷り印刷法も用いられてい
た。しかし、この印刷法を用いてガラス基材に印刷を行
う場合には、基材の破損を防ぐため、版に弾性をもたせ
るか、あるいは、版と版を装着する版胴の間に弾性層を
設けな（ではならなかった。そのため、印刷時の印圧に
より弾性層が変形し、被印刷基材上に印刷された各色要
素層のパターン精度が悪かった。なお、版に弾性をもた
せるためインキ反発体層の下層に０゜２５＋ａｍ厚さ程
度のゴム層を設けた水なし平版はゴム層表面粗さが大き
いため、製版精度自体が悪かった。For the above reasons, a direct printing method has also been used in which a patterned plate is coated with color ink, and then the plate is directly pressed against a base material to transfer the color ink to the base material. However, when printing on a glass substrate using this printing method, in order to prevent damage to the substrate, the plate must be made elastic, or an elastic layer must be placed between the plate and the plate cylinder on which the plate is attached. As a result, the elastic layer was deformed by the printing pressure during printing, and the pattern accuracy of each color element layer printed on the printing substrate was poor. In a waterless planographic plate in which a rubber layer with a thickness of about 0°25+am was provided below the repellent layer, the plate-making accuracy itself was poor because the surface roughness of the rubber layer was large.
発明が解決しようとする課題
このように、カラーフィルタの各色要素層のパターン精
度が悪いと、液晶表示パネルに用いた場合、各色要素層
間に白ぬけ１１（色要素層間の隙間による光の漏れ）あ
るいは重なり１２による膜厚分布が生じて、同一色要素
層内で光の透過率にバラツキが生じ、コントラストが悪
くなっていた。Problems to be Solved by the Invention As described above, if the pattern accuracy of each color element layer of a color filter is poor, when used in a liquid crystal display panel, white spots 11 may occur between each color element layer (light leakage due to gaps between color element layers). Alternatively, a film thickness distribution due to the overlap 12 occurs, causing variations in light transmittance within the same color element layer, resulting in poor contrast.
そこで、本発明は各色要素層のパターン精度を高め、各
色要素層間に白ぬけおよび重なりのないカラーフィルタ
の製造法を提供するものである。Therefore, the present invention provides a method for manufacturing a color filter that improves the pattern accuracy of each color element layer and eliminates white spots and overlaps between the color element layers.
課題を解決するための手段
本発明の製造法は、顔料および磁性粒子が分散されたカ
ラーインキもしくは磁性顔料が分散されたカラーインキ
を版材の画線部に着肉させ版上に色要素層を所定間隔に
形成するインキ着肉工程、前記版上の色要素層に磁界を
印加し版材と対向する基材表面に版上のインキを転移さ
せ基材上に色要素層を所定間隔に形成するインキ転移工
程、および前記基材上に転移したインキを乾燥・硬化す
る硬化工程を繰り返すことを特徴とする。Means for Solving the Problems The manufacturing method of the present invention involves applying color ink in which pigments and magnetic particles are dispersed, or color ink in which magnetic pigments are dispersed, to the image area of a plate material, and forming a color element layer on the plate. An ink application step of forming color element layers on the plate at predetermined intervals, applying a magnetic field to the color element layer on the plate to transfer the ink on the plate to the surface of the base material facing the plate material, and forming the color element layer on the base material at predetermined intervals. It is characterized by repeating the ink transfer step of forming the substrate and the curing step of drying and curing the ink transferred onto the substrate.
作用
この技術的手段による作用は磁性粒子を含んだ磁性イン
キに磁界を印加すると磁性インキが磁界による力を受は
吸引されることを利用したものである。Effect: The effect of this technical means is based on the fact that when a magnetic field is applied to magnetic ink containing magnetic particles, the magnetic ink receives the force of the magnetic field and is attracted.
インキ着肉工程により版上に所定間隔に形成された各色
要素層の磁性インキに磁石により磁界を印加して磁力を
作用させ、版上の各色要素層の磁性インキを被印刷基材
表面に引き寄せ、被印刷基材表面にインキを転移させな
がら磁石を移動させれば、版上に所定間隔に形成された
各色要素層のパターンがそのまま被印刷基材表面に転写
される。A magnetic field is applied by a magnet to the magnetic ink of each color element layer formed at a predetermined interval on the plate through the ink deposition process, and a magnetic force is applied to the magnetic ink of each color element layer on the plate to be drawn to the surface of the printing substrate. By moving the magnet while transferring the ink onto the surface of the substrate to be printed, the pattern of each color element layer formed on the plate at predetermined intervals is transferred as is to the surface of the substrate to be printed.
一方、インキ中に分散している磁性粒子の粒径を可視光
の波長域（４００ｎｍ〜７００ｎ＋ｇ）の０．５倍以下
としたことから、磁性粒子を分散したことによりカラー
フィルタの透過率が減少することはない。On the other hand, since the particle size of the magnetic particles dispersed in the ink was set to less than 0.5 times the wavelength range of visible light (400 nm to 700 n+g), the transmittance of the color filter decreased due to the dispersion of the magnetic particles. There's nothing to do.
したがって、印圧を加えることなく、非接触でしかも１
回のインキ転移で版から被印刷基材表面に所定間隔に各
色要素層を形成するため、各色要素層のパターン精度を
版のパターン精度と同程度に高くすることが可能となり
、コントラストの高い液晶表示パネルを実現することが
できる。Therefore, without applying printing pressure and without contact,
Since each color element layer is formed at a predetermined interval from the plate to the surface of the printing substrate by multiple ink transfers, it is possible to increase the pattern accuracy of each color element layer to the same level as the pattern accuracy of the plate, resulting in high-contrast liquid crystal display. A display panel can be realized.
実施例
以下に本発明の一実施例を添付図面に基すいて説明する
。第１図〜第３図は本発明によるカラーフィルタの製造
法の工程図である。EXAMPLE An example of the present invention will be described below with reference to the accompanying drawings. 1 to 3 are process diagrams of a method for manufacturing a color filter according to the present invention.
インキ着肉工程では、第１図（ａ）に示すように、金属
板の上面にエツチング加工により所定間隔に凹部１３を
形成し、この凹部１３を画線部とした版１４を用いる。In the ink application step, as shown in FIG. 1(a), a plate 14 is used, in which recesses 13 are formed at predetermined intervals on the upper surface of a metal plate by etching, and the recesses 13 are used as printing areas.
顔料および磁性粒子としては、それぞれフタロシアニン
系顔料およびＭｎ−Ｚｎフェライト系磁性粒子を用いる
。インキ中に分散している粒子の粒径を色光の波長域（
４００ｎｍ〜７００ｎｌ）の０．５倍以下にすると色光
の通過率が増加するのでカラーフィルタの透過率が向上
する。したがって、インキ中に分散している顔料および
磁性粒子の粒径は０．２μｍ以下としている。まず、デ
イスペンサ（図示せず）により版１４の一辺端１５に紫
外線硬化型のインキ１８を盛る。次に、ドクターブレー
ド１７を版１４の上面に接触させた状態で上記−辺端１
５より図中矢印方向に移動させれば、インキ１８はドク
ターブレード１７により押し流され、第１図（ｂ）に示
すように、版１４の凹部１３にのみインキ１６が充清し
、その他の版面上のインキ１６はかき取られる。その結
果、版１４上に色要素層１８が所定間隔に形成される。As the pigment and magnetic particles, a phthalocyanine pigment and Mn-Zn ferrite magnetic particles are used, respectively. The particle size of the particles dispersed in the ink is calculated in the wavelength range of colored light (
When it is 0.5 times or less of 400 nm to 700 nl), the transmittance of colored light increases, and the transmittance of the color filter improves. Therefore, the particle size of the pigment and magnetic particles dispersed in the ink is set to 0.2 μm or less. First, ultraviolet curing ink 18 is applied to one side edge 15 of the plate 14 using a dispenser (not shown). Next, with the doctor blade 17 in contact with the upper surface of the plate 14,
5 in the direction of the arrow in the figure, the ink 18 is swept away by the doctor blade 17, and as shown in FIG. The upper ink 16 is scraped off. As a result, color element layers 18 are formed on the plate 14 at predetermined intervals.
次に、インキ転移工程では、第２図に示すように、所定
間隔に色要素層１８が形成された版１４を真空チャック
で版支持台１９に吸着固定し、−方、版１４と対設する
ように被印刷基材２０を真空チャックで基材支持台２１
に吸着固定する。版支持台１９はメインフレーム２２に
設置している。Next, in the ink transfer process, as shown in FIG. The substrate 20 to be printed is placed on the substrate support stand 21 using a vacuum chuck.
Fix it by suction. The plate support stand 19 is installed on the main frame 22.
電磁石２３は移動機２４に取り付けられ、被印刷基材２
０の版１４と反対側の面上を移動できるようになってい
る。なお、基材支持台２１および移動機２４はフレーム
２５に設置してあり、フレーム２５は上下方向に移動可
能になっている。基材支持台２１には、版１４と被印刷
基材２０の間隔すなわち版１４と電磁石２３の間隔を調
節するギャップ制御器２６を取り付けている。そして、
電磁石２３による磁界を印加するとともに、電磁石２３
を移動機２４により矢印方向に動かす。このようにして
、版１４上に形成された色要素層１８に磁界を印加する
ため、版１４上の色要素層１８のインキは磁界による力
を受は磁石２３側に引き寄せられ、版１４と電磁石２３
の間に位置する被印刷基材２０の表面に転移する。そし
て、電磁石２３の移動とともに、版１４上に所定間隔に
形成された色要素層１８のパターンが全てそのまま被印
刷基材２０上に転写される。The electromagnet 23 is attached to the moving machine 24 and is attached to the printing substrate 2
It is possible to move on the surface opposite to the version 14 of 0. Note that the base material support stand 21 and the moving device 24 are installed on a frame 25, and the frame 25 is movable in the vertical direction. A gap controller 26 for adjusting the distance between the plate 14 and the substrate 20 to be printed, that is, the distance between the plate 14 and the electromagnet 23, is attached to the substrate support stand 21. and,
While applying a magnetic field by the electromagnet 23, the electromagnet 23
is moved in the direction of the arrow by the moving device 24. In this way, since a magnetic field is applied to the color element layer 18 formed on the plate 14, the ink in the color element layer 18 on the plate 14 is attracted to the magnet 23 side by the force of the magnetic field, and the color element layer 18 formed on the plate 14 is attracted to the magnet 23 side. Electromagnet 23
It transfers to the surface of the printing substrate 20 located between them. As the electromagnet 23 moves, all the patterns of the color element layers 18 formed at predetermined intervals on the plate 14 are transferred onto the printing substrate 20 as they are.
硬化工程では、第３図に示すように、前工程で被印刷基
材２０上に転写された色要素層２７を紫外線硬化ランプ
２８を用いて乾燥・硬化する。In the curing step, as shown in FIG. 3, the color element layer 27 transferred onto the printing substrate 20 in the previous step is dried and hardened using an ultraviolet curing lamp 28.
ついで、上記工程を繰り返し、第４図に示すようなパタ
ーン精度の高い赤、緑、青の各色要素層２７．２９．３
０を所定間隔に形成することにより、各色要素層間に白
ぬけおよび重なりがなく透過率の高いカラーフィルタを
製造することができる。Next, the above steps are repeated to form red, green, and blue color element layers 27.29.3 with high pattern accuracy as shown in FIG.
By forming 0 at predetermined intervals, it is possible to manufacture a color filter with high transmittance without white spots or overlaps between the color element layers.
なお、上記実施例では、顔料および磁性粒子をビヒクル
に分散してカラーインキを作製したが、本発明はこれに
限ることなく、磁性体である有色顔料粒子をビヒクルに
分散してカラーインキを作製しても同様の効果を得る。In the above examples, color ink was prepared by dispersing pigment and magnetic particles in a vehicle, but the present invention is not limited to this, and color ink was prepared by dispersing colored pigment particles, which are magnetic substances, in a vehicle. You can also get the same effect.
また、上記実施例では、印刷版として金属板の上面をエ
ツチング加工することにより形成した凹版を用いたが、
金属板の上面に親インキ性の感光性樹脂層とインキ反発
性のシリコーンゴム層を塗布し形成した平版を用いても
同様の効果を得る。Furthermore, in the above embodiment, an intaglio plate formed by etching the top surface of a metal plate was used as the printing plate.
A similar effect can be obtained by using a planographic plate formed by applying an ink-philic photosensitive resin layer and an ink-repellent silicone rubber layer to the upper surface of a metal plate.
発明の効果
以上のように、本発明によれぼ印圧を加えることなく非
接触でしかも１回のインキ転移で版から被印刷基材上に
各色要素層を形成するため、各色要素層のパターン精度
が高く、各色要素層間に白ぬけおよび重なりがなく透過
率の高いカラーフィルタが実現でき、液晶表示パネルの
コントラストを向上させることができる。Effects of the Invention As described above, according to the present invention, each color element layer is formed on the printing substrate from the plate in a non-contact manner without applying any printing pressure and in one ink transfer, so that the pattern of each color element layer is It is possible to realize a color filter with high precision and high transmittance without white spots or overlaps between the color element layers, and it is possible to improve the contrast of a liquid crystal display panel.
第１図から第３図は本発明の一実施例の製造法の工程図
、第４図は同製造法によるカラーフィルタの断面図、第
５図は従来例の印刷工程図、第６図は従来例によるカラ
ーフィルタの断面図である。
１４・・・版、 １８−・・インキ、 １７・・・ドク
ターブレー）’、１８・・・色要素層、２０・・・被印
刷基材、２３・・・電磁石、２４・・・移動機、２６・
・・ギャップ制御器、２７．２９．３０・・・各色要素
層。
代理人の氏名 弁理士 中尾敏男 はが１名１５ 版
の一逗煽
１９−・・版支誇台
加一種印刷 番廿
第３図
陶 ４ 口 ２０複印ｐ傷甘／1 to 3 are process diagrams of a manufacturing method according to an embodiment of the present invention, FIG. 4 is a sectional view of a color filter produced by the same manufacturing method, FIG. 5 is a printing process diagram of a conventional example, and FIG. FIG. 2 is a cross-sectional view of a conventional color filter. DESCRIPTION OF SYMBOLS 14... Plate, 18-... Ink, 17... Doctor blade)', 18... Color element layer, 20... Printing substrate, 23... Electromagnet, 24... Mobile device , 26・
...Gap controller, 27.29.30...Each color element layer. Name of agent: Patent attorney Toshio Nakao 1 name 15 Ban Ichizusen 19--Ban Shibodai Ka type printing Ban 3 No. 3 Tou 4 Kuchi 20 double stamps p scratch sweet /
Claims (5)
しくは磁性顔料が分散されたカラーインキを版材の画線
部に着肉させ版上に色要素層を所定間隔に形成するイン
キ着肉工程、前記版上の色要素層に磁界を印加し版材と
対向する基材表面に版上のインキを転移させ基材上に色
要素層を所定間隔に形成するインキ転移工程、および前
記基材上に転移したインキを乾燥・硬化する硬化工程を
繰り返すカラーフィルタの製造法。(1) An ink application step of applying color ink in which pigments and magnetic particles are dispersed, or color ink in which magnetic pigments are dispersed, to the image area of the plate material to form color element layers at predetermined intervals on the plate; an ink transfer step of applying a magnetic field to the color element layer on the plate to transfer the ink on the plate to the surface of the base material facing the plate material and forming color element layers at predetermined intervals on the base material; A color filter manufacturing method that repeats the curing process of drying and curing the transferred ink.
トのうち１つ以上である請求項１記載のカラーフィルタ
の製造法。(2) The method for producing a color filter according to claim 1, wherein the magnetic particles are one or more of ferromagnetic metal, magnetite, and ferrite.
請求項１記載のカラーフィルタの製造法。(3) The method for producing a color filter according to claim 1, wherein the diameter of the pigment and magnetic particles is 0.2 μm or less.
いは機械加工により画線部となる凹部および非画線部と
なる凸部を形成した凹版である請求項１記載のカラーフ
ィルタの製造法。(4) The method for producing a color filter according to claim 1, wherein the plate material is an intaglio plate in which a concave portion serving as an image area and a convex portion serving as a non-image area are formed on a metal plate by etching, plating, vapor deposition, or machining. .
発性の非画線部を形成した平版である請求項１記載のカ
ラーフィルタの製造法。(5) The method for manufacturing a color filter according to claim 1, wherein the plate material is a planographic plate in which an ink-philic image area and an ink-repellent non-image area are formed on a metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63124336A JPH01293305A (en) | 1988-05-20 | 1988-05-20 | Production of color filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63124336A JPH01293305A (en) | 1988-05-20 | 1988-05-20 | Production of color filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01293305A true JPH01293305A (en) | 1989-11-27 |
Family
ID=14882822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63124336A Pending JPH01293305A (en) | 1988-05-20 | 1988-05-20 | Production of color filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01293305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544582A (en) * | 1993-11-03 | 1996-08-13 | Corning Incorporated | Method for printing a color filter |
| US5701815A (en) * | 1993-11-03 | 1997-12-30 | Corning Incorporated | Method of printing a color filter |
-
1988
- 1988-05-20 JP JP63124336A patent/JPH01293305A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544582A (en) * | 1993-11-03 | 1996-08-13 | Corning Incorporated | Method for printing a color filter |
| US5701815A (en) * | 1993-11-03 | 1997-12-30 | Corning Incorporated | Method of printing a color filter |
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