JPS62254103A - Color filter - Google Patents
Color filterInfo
- Publication number
- JPS62254103A JPS62254103A JP61097520A JP9752086A JPS62254103A JP S62254103 A JPS62254103 A JP S62254103A JP 61097520 A JP61097520 A JP 61097520A JP 9752086 A JP9752086 A JP 9752086A JP S62254103 A JPS62254103 A JP S62254103A
- Authority
- JP
- Japan
- Prior art keywords
- forming material
- filter
- color filter
- pattern
- gaps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 229920001721 polyimide Polymers 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 239000009719 polyimide resin Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004040 coloring Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000004642 Polyimide Substances 0.000 description 5
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- YCUVUDODLRLVIC-UHFFFAOYSA-N Sudan black B Chemical compound C1=CC(=C23)NC(C)(C)NC2=CC=CC3=C1N=NC(C1=CC=CC=C11)=CC=C1N=NC1=CC=CC=C1 YCUVUDODLRLVIC-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- PXOZAFXVEWKXED-UHFFFAOYSA-N chembl1590721 Chemical compound C1=CC(NC(=O)C)=CC=C1N=NC1=CC(C)=CC=C1O PXOZAFXVEWKXED-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、液晶表示装置に付属させてカラー表示する
ために用いるカラーフィルタの技術に関し、特に、カラ
ーフィルタの表面を平滑にするための技術に関するもの
である。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a technology for a color filter attached to a liquid crystal display device and used for color display, and in particular to a technology for smoothing the surface of a color filter. It is related to.
（従来の技術）
この種のカラーフィルタの一つとして、ガラス板等の光
透過性の基板と、この基板の一面に、各フィルタ画素を
形成すべき領域を区画するように形成された境界パター
ンと、境界パターンが区画する領域部分に形成された多
数のフィルタ画素とを有するものが知られている。多数
のフィルタ画素は、一般に、赤、緑、青の互いに異なる
３色のパターン形成材料によって形成され、また、境界
パターンは黒色などの遮光性のパターン形成材料によっ
て形成されている。(Prior Art) As one of this type of color filter, a light-transmitting substrate such as a glass plate and a boundary pattern are formed on one surface of this substrate to demarcate the area where each filter pixel is to be formed. A filter having a large number of filter pixels formed in a region defined by a boundary pattern is known. A large number of filter pixels are generally formed of pattern-forming materials of three different colors, red, green, and blue, and the boundary pattern is formed of a light-shielding pattern-forming material such as black.
前記境界パターンは、３色のフィルタ画素群の相互の位
置合わせに余裕を生むとともに、各フィルタ画素のパタ
ーンニング精度を規定することがら、カラーフィルタの
精度を高め、画像表示の均一性あるいはコントラストを
高めるといった優れた利点を生む。なお、こうした境界
パターンを有するカラーフィルタについては、たとえば
、特開昭５９−２２６３０５号の公報に示されている。The boundary pattern creates margin for the mutual alignment of the three color filter pixel groups, and also defines the patterning accuracy of each filter pixel, thereby increasing the accuracy of the color filter and improving the uniformity or contrast of the image display. It produces excellent benefits such as increasing Note that a color filter having such a boundary pattern is disclosed in, for example, Japanese Patent Laid-Open No. 59-226305.
（発明が解決しようとする問題点）
しかし、前記境界パターンを有する場合、各フィルタ画
素は隣り合うもの同士が互いに隙間をもって配置される
ことになり、その隙間の部分に段差ないしは凹凸が生じ
てしまう。こうした凹凸は、カラーフィルタの」二部に
形成する電極配線層にクラックや断線を発生させやすく
、カラーフィルタの製造歩留まりを低下する原因となる
。特に、フィルタ画素の厚さを、たとえば１μｍ以」；
というように厚く形成すればするほど問題は顕著となる
。(Problem to be Solved by the Invention) However, when the boundary pattern is provided, adjacent filter pixels are arranged with gaps between them, and steps or unevenness occur in the gaps. . These irregularities tend to cause cracks and disconnections in the electrode wiring layer formed in the second part of the color filter, which causes a decrease in the manufacturing yield of the color filter. In particular, the thickness of the filter pixel is, for example, 1 μm or more.
Thus, the thicker the layer is formed, the more serious the problem becomes.
フィルタ画素に充分な色濃度を出すため、あるいは、３
色の各フィルタ画素間に厚さの差をもたせるマルチギャ
ップ型のカラーフィルタの出現など、フィルタ画素の厚
さを厚くするという要望は高い。In order to provide sufficient color density to the filter pixel, or
There is a strong desire to increase the thickness of filter pixels, such as with the advent of multi-gap color filters that have a difference in thickness between each color filter pixel.
しかもまた、各フィルタ画素を、耐熱性あるいは耐光性
などに優れたポリイミド樹脂を用いて形成する場合、ポ
リイミド樹脂はエツチング指向性が高く、かつ、硬化の
ために熱処理を要することから、各フィルタ画素の周縁
部が上方に突出する傾向があり、前記した断線等の問題
はより一層顕著である。Moreover, when forming each filter pixel using polyimide resin that has excellent heat resistance or light resistance, polyimide resin has high etching directionality and requires heat treatment for curing. The peripheral edge of the wire tends to protrude upward, making the aforementioned problems such as wire breakage even more pronounced.
（問題点を解決するための手段）
この発明では、各フィルタ画素の境界部分に形成される
隙間を、パターンニングが可能なパターン形成材料によ
って選択的に埋め込むようにしている。(Means for Solving the Problems) In the present invention, gaps formed at the boundaries of each filter pixel are selectively filled with a pattern-forming material that can be patterned.
隙間を埋めるパターン形成材料としては、実露光法を適
用できることから、ネガ型感光性樹脂が好適である。As a pattern forming material for filling the gap, a negative photosensitive resin is suitable because an actual exposure method can be applied.
（作用）
各フィルタ画素間の隙間を埋めるパターン形成材料は、
カラーフィルタの表面を平滑にする。したがって、その
表面に全体を被う保護膜を介在し、−３＝
あるいは保護膜を介在せずに電極配線層を形成する場合
、前記したようなりラックあるいは断線等はほとんど生
じることがない。(Function) The pattern forming material that fills the gaps between each filter pixel is
Smooth the surface of the color filter. Therefore, when forming an electrode wiring layer with a protective film covering the entire surface or without interposing a protective film, the above-mentioned rack or disconnection hardly occurs.
（実施例）
第１−図はこの発明によるカラーフィルタの一実施例を
示す側断面図である。(Embodiment) Figure 1 is a side sectional view showing an embodiment of a color filter according to the present invention.
光透過性のガラス板から成る基板１ｏは、互いに平行で
、かつ各々が平坦な２面１０ａ、］−０ｂを有する。こ
の基板１０の一面１０’ａに、まず、厚さ０．５μｍ程
度の比較的に薄い境界パターン１２が形成されている。A substrate 1o made of a light-transmissive glass plate has two surfaces 10a and 10b which are parallel to each other and each flat. First, on one surface 10'a of this substrate 10, a relatively thin boundary pattern 12 having a thickness of about 0.5 μm is formed.
境界パターン１−２は、全体的に格子状に形成されてお
り、基板１ｏの一面１０ａを多数の４角形の領域１−４
に区画している。The boundary pattern 1-2 is formed in a lattice shape as a whole, and divides one surface 10a of the substrate 1o into a large number of rectangular regions 1-4.
It is divided into
この境界パターン１２は、黒色に着色したポリイミド樹
脂等によって形成され、その幅はたとえば１０〜３０μ
ｍ程度と、位置合わせ誤差を充分に吸収しうるだけの大
きさに設定されている。また、境界パターン１２は、そ
の上に形成する複数群、一般に赤、緑、青の３群のフィ
ルタ画素１６Ｒ９１６Ｇ、１６Ｂの位置合わせの基準と
なるもので＝４−
あり、各フィルタ画素の周縁部の位置をより容易に観察
しうるように、たとえば透過率数１０％程度の光透過性
を有する。This boundary pattern 12 is formed of black colored polyimide resin or the like, and has a width of, for example, 10 to 30 μm.
It is set to a size of approximately m, which is large enough to sufficiently absorb alignment errors. Further, the boundary pattern 12 serves as a reference for alignment of a plurality of groups of filter pixels 16R, 916G, 16B formed thereon, generally three groups of red, green, and blue. It has a light transmittance of, for example, a transmittance of about 10% so that its position can be observed more easily.
赤、緑、青の３群のフィルタ画素１６Ｒ，１６Ｇ、１６
Ｂは、各々、境界パターン１２が区画する領域１４より
も少し太き目の４角形状であり、その周縁部は境界パタ
ーン１２の上に載っている。Three groups of filter pixels 16R, 16G, 16 of red, green, and blue
B has a rectangular shape that is slightly thicker than the area 14 defined by the boundary pattern 12, and its peripheral edge rests on the boundary pattern 12.
ここで、３群のフィルタ画素１６Ｒ，１６Ｇ、１６Ｂは
、いずれもポリ子ミド樹脂の中に染料を混入した材料に
よってパターンニングされている。Here, the three groups of filter pixels 16R, 16G, and 16B are all patterned using a material in which dye is mixed into polymide resin.
パターンニングの手段としては、フォトマスクおよびフ
ォトレジストを用いたフォトリングラフィ技術、あるい
は印刷による方法等を適用することができる。フォトリ
ソグラフィ技術と印刷とでは、用いる塗布液の粘度が異
なり、その調整は溶剤の量を変えることによって行なう
。しかし、両方法ともに、所定のパターン形成材料、た
とえば２５０℃程度の温度で熱処理することによって、
各パターンを充分に硬化させる。フォトリソグラフィ技
術の場合における各塗布液の組成は、たとえば次のとお
りである。As a means for patterning, a photolithography technique using a photomask and a photoresist, a printing method, or the like can be applied. The viscosity of the coating liquid used differs between photolithography technology and printing, and the viscosity is adjusted by changing the amount of solvent. However, in both methods, by heat-treating a predetermined pattern-forming material at a temperature of about 250°C,
Allow each pattern to fully cure. The composition of each coating liquid in the case of photolithography technology is, for example, as follows.
（黒色用）
ソルベントブラック ３ ０．５ｇポリイミド前
駆体溶液 ５．０ｇメチルセロソルブ
１５．ｏｇ（赤色用）
アシッド レッド ２５７ ０．５ｇポリイミド
前駆体溶液 ５．０ｇメチルセロソルブ
８．５ｇ（緑色用）
ソルベント イエロー ７７ ０．５ｇアシッドブ
ルーフ ０．５ｇポリイミド前駆体溶液
５．０ｇメチルセロソルブ ８．５
ｇ（青色用）
ソルベントブルー４２ ０．５ｇポリイミド前駆
体溶液 ５．０ｇメチルセロソルブ
８．５ｇところで、各フィルタ画素１６Ｒ，１６Ｇ、
１６Ｂは互いに隙間１８をもって形成されているため、
境界パターン１２上に、各フィルタ画素の厚さくたとえ
ば１〜２μｍ）に相当する凹凸が生じる。ここでは、こ
うした凹凸をなくすために、隙間１８の部分をパターン
形成材料２０によって選択的に埋め込んでいる。パター
ン形成材料２０としては、光透過性の透明樹脂、あるい
は黒色に着色した遮光性の樹脂を用いることができる。(For black color) Solvent black 3 0.5g polyimide precursor solution 5.0g methyl cellosolve
15. og (for red) Acid Red 257 0.5g polyimide precursor solution 5.0g methyl cellosolve
8.5g (for green) Solvent Yellow 77 0.5g acid blue 0.5g polyimide precursor solution
5.0g methyl cellosolve 8.5
g (for blue) Solvent Blue 42 0.5g polyimide precursor solution 5.0g methyl cellosolve
8.5g By the way, each filter pixel 16R, 16G,
16B are formed with a gap 18 between them, so
Irregularities corresponding to the thickness of each filter pixel (for example, 1 to 2 μm) are formed on the boundary pattern 12. Here, in order to eliminate such unevenness, the gap 18 is selectively filled with the pattern forming material 20. As the pattern forming material 20, a light-transmitting transparent resin or a black-colored light-blocking resin can be used.
黒色の樹脂を用いれば、画像のコントラスト向上の点で
も好ましい。 −
パターン形成材料２０を選択的に形成する手段として、
裏露光法を利用するのが好適である。まず、第２図（、
）に示すように、基板１０の一面１０ａに、格子形状の
境界パターン１２、ついで、この境界パターン１２を位
置合わせの基準として、赤、緑、青の３群のフィルタ画
素１６Ｒ，１６Ｇ。It is also preferable to use a black resin in terms of improving the contrast of the image. - as a means for selectively forming the patterning material 20;
It is preferable to use a back exposure method. First, Figure 2 (,
), on one surface 10a of the substrate 10, a lattice-shaped boundary pattern 12, and then, using this boundary pattern 12 as a reference for alignment, three groups of red, green, and blue filter pixels 16R, 16G are formed.
１−６Ｂを順次形成した後、裏露光法を適用する。After sequentially forming 1-6B, a back exposure method is applied.
したがって、裏露光を可能にするため、境界パターン１
２は紫外線をある程度透過させるようにするのに対し、
各フィルタ画素１６Ｒ，１６Ｇ、１６Ｂは、ポリイミド
樹脂の中に染料のほか、紫外＝７−
線吸収剤を添加することによって、紫外線をほとんど透
過させないようにする。通常、青色のものには、紫外線
吸収剤の添加は必須であり、赤色および緑色のものには
、フィルタ画素の厚さを厚くするような場合には省略す
ることもできる。Therefore, in order to enable back exposure, the boundary pattern 1
2 allows ultraviolet rays to pass through to some extent, whereas
Each of the filter pixels 16R, 16G, and 16B is made to hardly transmit ultraviolet rays by adding a dye and an ultraviolet 7-ray absorber to the polyimide resin. Usually, it is essential to add an ultraviolet absorber for blue colors, but it can be omitted for red and green colors when the thickness of the filter pixel is increased.
裏露光に際しては、第２図（ｂ）に示すように。For back exposure, as shown in FIG. 2(b).
感光性ポリイミド、ゼラチン、カゼイン、ＰＶＡ、ゴム
−ビスアジド系あるいはアクリル系のネガ型フォトレジ
ストの層２２を各フィルタ画素と同程度の厚さに塗布し
形成し、必要に応じてブレベーク後、基板１０の裏面１
０ｔ）側から紫外線２４による露光を行なう。そして、
所定の現像液を用いて、未露光部を除去し、必要に応じ
てボーストベークして選択的なパターン形成材料２０を
得る。A layer 22 of photosensitive polyimide, gelatin, casein, PVA, rubber-bisazide, or acrylic negative photoresist is coated and formed to a thickness similar to that of each filter pixel, and if necessary, after brebake, the substrate 10 is coated. back side 1
Exposure to ultraviolet light 24 is performed from the 0t) side. and,
The unexposed areas are removed using a predetermined developer, and if necessary, a boost bake is performed to obtain the selective pattern forming material 20.
（発明の効果）
この発明によれば、境界パターン１２があることによる
利点、つまり、位置合わせが容易であること、並びに画
像のコントラストおよび均一性を高めうろこと、に加え
て、隙間１８を選択的に埋めるパターン形成材料２０が
あることから、カラ−フィルタの表面の平滑性をも高め
ることができるという優れた利点を得ることができる。(Effects of the Invention) According to the present invention, in addition to the advantages of having the boundary pattern 12, that is, ease of alignment and scales that increase the contrast and uniformity of the image, the gap 18 is selected. Since there is a pattern forming material 20 that fills in the color filter, an excellent advantage can be obtained that the smoothness of the surface of the color filter can also be improved.
第１図はこの発明の一実施例を示す側断面図、第２図は
その製法例を示す］二程図である。
１０・・・基板、１２・・・境界パターン、１６Ｒ，１
６Ｇ、１６Ｂ・・・フィルタ画素、１８・・・隙間、２
０・・・パターン形成材料。FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a two-step diagram showing an example of its manufacturing method. 10... Substrate, 12... Boundary pattern, 16R, 1
6G, 16B...Filter pixel, 18...Gap, 2
0...Pattern forming material.
Claims (1)
画素を形成すべき領域を区画するように形成された境界
パターンと、境界パターンが区画する領域部分に形成さ
れた多数のフィルタ画素とを有するカラーフィルタにお
いて、前記の各フィルタ画素は隣り合うもの同士が互い
に隙間をもって形成されており、各隙間の部分がパター
ン形成材料によって選択的に埋め込まれていることを特
徴とするカラーフィルタ。 ２、前記の各フィルタ画素は、その周縁部が前記境界パ
ターンの上に載っている、特許請求の範囲第１項記載の
カラーフィルタ。 ３、前記の各フィルタ画素は、ポリイミド樹脂に着色材
を混入した材料から成る、特許請求の範囲第１項あるい
は第２項記載のカラーフィルタ。 ４、前記隙間を埋めるパターン形成材料は、ネガ型感光
性樹脂から成る、特許請求の範囲第１〜３項のいずれか
に記載のカラーフィルタ。[Claims] 1. A light-transmissive substrate, a boundary pattern formed on one surface of this substrate to demarcate an area where each filter pixel is to be formed, and a boundary pattern formed in the area demarcated by the boundary pattern. In the color filter having a large number of filter pixels, each of the filter pixels is formed with a gap between adjacent filter pixels, and each gap is selectively filled with a pattern forming material. Characteristic color filter. 2. The color filter according to claim 1, wherein each of the filter pixels has a peripheral portion thereof placed on the boundary pattern. 3. The color filter according to claim 1 or 2, wherein each of the filter pixels is made of a material in which a coloring material is mixed into polyimide resin. 4. The color filter according to any one of claims 1 to 3, wherein the pattern forming material filling the gap is made of a negative photosensitive resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097520A JPH06100684B2 (en) | 1986-04-26 | 1986-04-26 | Color filter manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097520A JPH06100684B2 (en) | 1986-04-26 | 1986-04-26 | Color filter manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62254103A true JPS62254103A (en) | 1987-11-05 |
| JPH06100684B2 JPH06100684B2 (en) | 1994-12-12 |
Family
ID=14194533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61097520A Expired - Fee Related JPH06100684B2 (en) | 1986-04-26 | 1986-04-26 | Color filter manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06100684B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03135521A (en) * | 1988-12-31 | 1991-06-10 | Samsung Electron Devices Co Ltd | Color filter for liquid-crystal display element and manufacture thereof |
| JPH03145603A (en) * | 1989-11-01 | 1991-06-20 | Matsushita Electric Ind Co Ltd | Production of color filter and color image sensor |
| US5948576A (en) * | 1994-01-28 | 1999-09-07 | Canon Kabushiki Kaisha | Process for producing a color filter |
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|---|---|---|---|---|
| JPS5417627A (en) * | 1977-07-11 | 1979-02-09 | Dainippon Printing Co Ltd | Method of producing color stripe filter |
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| JPS5929225A (en) * | 1982-08-11 | 1984-02-16 | Matsushita Electric Ind Co Ltd | Production of color filter for liquid crystal display panel |
| JPS59226305A (en) * | 1983-06-07 | 1984-12-19 | Matsushita Electric Ind Co Ltd | Production of optical filter |
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| JPS6177804A (en) * | 1984-09-25 | 1986-04-21 | Kyodo Printing Co Ltd | Production of color filter |
-
1986
- 1986-04-26 JP JP61097520A patent/JPH06100684B2/en not_active Expired - Fee Related
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5417627A (en) * | 1977-07-11 | 1979-02-09 | Dainippon Printing Co Ltd | Method of producing color stripe filter |
| JPS5718500A (en) * | 1980-03-06 | 1982-01-30 | Isupanooshiyuiza | Isotope separation recirculating compressor employing gas diffuser with blow pump |
| JPS56128920A (en) * | 1980-03-14 | 1981-10-08 | Dainippon Printing Co Ltd | Manufacture of electrode substrate for liquid-crystal display element |
| JPS5734522A (en) * | 1980-08-09 | 1982-02-24 | Dainippon Printing Co Ltd | Production of electrode substrate for liquid crystal display element |
| JPS5779905A (en) * | 1980-11-06 | 1982-05-19 | Toppan Printing Co Ltd | Color filter and its production |
| JPS57173805A (en) * | 1981-04-20 | 1982-10-26 | Matsushita Electric Ind Co Ltd | Optical filter and its manufacture |
| JPS57198412A (en) * | 1981-05-19 | 1982-12-06 | Thomson Csf | Manufacture of photosensor color filter |
| JPS57190912A (en) * | 1981-05-20 | 1982-11-24 | Matsushita Electric Ind Co Ltd | Production of color filter |
| JPS5890603A (en) * | 1981-11-18 | 1983-05-30 | Toppan Printing Co Ltd | Manufacture of color filter |
| JPS58223171A (en) * | 1982-06-21 | 1983-12-24 | シャープ株式会社 | Color liquid crystal display |
| JPS5929225A (en) * | 1982-08-11 | 1984-02-16 | Matsushita Electric Ind Co Ltd | Production of color filter for liquid crystal display panel |
| JPS59226305A (en) * | 1983-06-07 | 1984-12-19 | Matsushita Electric Ind Co Ltd | Production of optical filter |
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| JPS60247603A (en) * | 1984-05-24 | 1985-12-07 | Toppan Printing Co Ltd | Color filter |
| JPS613123A (en) * | 1984-06-15 | 1986-01-09 | Sony Corp | Production of liquid crystal color display element |
| JPS616624A (en) * | 1984-06-21 | 1986-01-13 | Sony Corp | Production of liquid crystal color display element |
| JPS6177804A (en) * | 1984-09-25 | 1986-04-21 | Kyodo Printing Co Ltd | Production of color filter |
| JPS6177884A (en) * | 1984-09-26 | 1986-04-21 | 松下電器産業株式会社 | Manufacture of liquid crystal display panel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03135521A (en) * | 1988-12-31 | 1991-06-10 | Samsung Electron Devices Co Ltd | Color filter for liquid-crystal display element and manufacture thereof |
| JPH03145603A (en) * | 1989-11-01 | 1991-06-20 | Matsushita Electric Ind Co Ltd | Production of color filter and color image sensor |
| US5948576A (en) * | 1994-01-28 | 1999-09-07 | Canon Kabushiki Kaisha | Process for producing a color filter |
| US6134059A (en) * | 1994-01-28 | 2000-10-17 | Canon Kabushiki Kaisha | Color filter, production process thereof, and liquid crystal panel |
| US6207329B1 (en) | 1994-01-28 | 2001-03-27 | Canon Kabushiki Kaisha | Process for producing color filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06100684B2 (en) | 1994-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |