JPS62280802A - Manufacture of color filter - Google Patents
Manufacture of color filterInfo
- Publication number
- JPS62280802A JPS62280802A JP61125236A JP12523686A JPS62280802A JP S62280802 A JPS62280802 A JP S62280802A JP 61125236 A JP61125236 A JP 61125236A JP 12523686 A JP12523686 A JP 12523686A JP S62280802 A JPS62280802 A JP S62280802A
- Authority
- JP
- Japan
- Prior art keywords
- film
- color
- alumina
- color filter
- printing
- 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 11
- 238000007639 printing Methods 0.000 claims abstract description 20
- 238000005498 polishing Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010419 fine particle Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 6
- 238000007645 offset printing Methods 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000049 pigment Substances 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 238000007650 screen-printing Methods 0.000 claims 1
- 239000003086 colorant Substances 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229910003460 diamond Inorganic materials 0.000 abstract description 2
- 239000010432 diamond Substances 0.000 abstract description 2
- 239000003082 abrasive agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Landscapes
- Optical Filters (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ガラス等の基板上に印刷方式により着色イン
キ被膜を形成して、液晶ディスプレイその他精密電子装
置の光検出部品に使用するカラーフィルターを製造する
方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a color filter for use in a light detection component of a liquid crystal display or other precision electronic device by forming a colored ink film on a substrate such as glass by a printing method.
〈従来の技術〉
液晶カラーディスプレイパネル等の製造に使用する青（
Ｂ）、緑（Ｇ）、赤（Ｒ）三原色の着色インキ被膜を所
望パターン状に備えた着色フィルターは、その着色イン
キ被膜面が平滑化されていないと、ディスプレイとして
組み立てる場合に電極形成用薄板ガラス、あるいは偏光
板ガラス等の他の基板との貼り合わせにおいて重ね合わ
せ内面に空隙や気泡ができたり、また、ガラス同志の平
行均一な貼着が不可能になる。また、基板に形成されて
いる着色インキ被膜上に、ＩＴＯ被膜をスパッタ等で形
成する場合に、その着色インキ被膜面に凹凸部があって
、膜厚／ｌｌ″−不均一であると、被膜の厚い部分でス
パッタ被膜が不十分になったり。<Conventional technology> Blue (
B) A colored filter having a colored ink film of the three primary colors of green (G) and red (R) in a desired pattern may be used as a thin plate for electrode formation when assembled as a display if the surface of the colored ink film is not smoothed. When bonding with other substrates such as glass or polarizing plate glass, voids or bubbles may be formed on the inner surface of the lamination, and it may become impossible to bond the glasses together in a parallel and uniform manner. Furthermore, when forming an ITO film by sputtering or the like on a colored ink film formed on a substrate, if the surface of the colored ink film has uneven parts and the film thickness/ll'' is non-uniform, the film may The sputter coating may be insufficient in thick areas.
スパッタ被膜ｂ；形成されず、断線を生ずることカーあ
ルナト、カラーフィルター！！造後の、加工処理に支障
が生じ易い。また１着色インキ被膜面の微細な凹凸によ
る光拡散現象によって透過性カー損なわれたり、その他
光学的損失カー発生する。Sputtered film b: Not formed and may cause wire breakage. Color filter! ! This can easily cause problems in processing after manufacturing. In addition, a light diffusion phenomenon caused by fine irregularities on the surface of a colored ink coating may impair the transmittance or cause other optical loss.
従って印刷方式によりガラスの基板に着色インキ被膜な
形成して製造されるカラーフィルターにおいては、上記
不都合を解消するため、従来は着色インキ被膜の平滑性
及び膜厚の均一性を得るため、所定の温度に熱した平滑
ロールを着色インキより平滑性を得るようにしていた。Therefore, in order to eliminate the above-mentioned disadvantages, conventionally, in color filters manufactured by forming a colored ink film on a glass substrate using a printing method, in order to obtain smoothness and uniformity of the film thickness of the colored ink film, a predetermined method has been used. A smooth roll heated to a temperature was used to obtain a smoother surface than the colored ink.
しかしながら、このカラーフィルターの、Ｎ色インキ被
膜の厚さは精々３μｍ程度であり、これをロールにより
平滑化しようとすると圧力を平均に加える必要があり、
また熱によるロールへの着色インキ被膜の融層により、
カラーフィルターの製造収率に影響を与える。However, the thickness of the N color ink film on this color filter is about 3 μm at most, and if you try to smooth it with a roll, it is necessary to apply pressure evenly.
In addition, due to the melting of the colored ink film on the roll due to heat,
Affects the production yield of color filters.
また、膜面な平坦化したカラーフィルターの製造方法に
関して１例えば、持願昭５９−１２３４３９液晶カラー
表示素子の＃遣方法がある。しかし。Further, regarding a method for manufacturing a color filter having a flat film surface, for example, there is a method for manufacturing a liquid crystal color display element disclosed in Patent Application No. 59-123439. but.
この方式では、ラッピングフィルムを用いて表面を研磨
した後、コーティングを施している。In this method, the surface is polished using a wrapping film and then coated.
（発明が解決しようとする問題点）
しかし、ラッピングフィルムは１着色インキ被膜ｆｆ平
坦にするが、微小的には、該被膜な粗面にしており、光
が散乱するため、ディスプレイとしてこのカラーフィル
ターを使用する場合、解は度を低下させる等光学特性上
好ましくない。(Problem to be Solved by the Invention) However, although the wrapping film is made flat with a colored ink film, the film has a microscopically rough surface, and light is scattered, so this color filter is used as a display. When using , the solution is unfavorable due to optical properties such as lower power.
特に１本発明におけるガラス等の基板上に印刷形成した
使用インキｈ″−１揮発性溶剤を含むワニスを主体とす
る場合は、印刷後１時間経過に従ってインキ中に含有す
るインキ溶剤ｈ″−急速に蒸発してインキの高度が高く
なっていく。硬度の高い被膜を平滑にする手段として、
ラッピングフィルムによる研磨をすると、径が１０μｍ
以上で高さが１〜６０μｍの突起が除去される。ラッピ
ングフィルムでの研磨は、その特徴として、凹部には触
れず、凸部分だけが削り取られていく。In particular, when the ink h''-1 used in the present invention is printed and formed on a substrate such as glass, and the main body is a varnish containing a volatile solvent, the ink solvent h''-1 contained in the ink rapidly increases after 1 hour has passed after printing. The ink evaporates to a higher altitude. As a means to smooth hard coatings,
When polished with a wrapping film, the diameter becomes 10 μm.
In this manner, protrusions having a height of 1 to 60 μm are removed. A characteristic of polishing with wrapping film is that only the convex parts are removed without touching the concave parts.
したがって、最低膜厚の位置まで、研磨すれば。Therefore, if you polish it to the position of the minimum film thickness.
均一な膜厚の面は得られる。しかし、ラッピングフィル
ムによる研磨は、被膜面を粗面にするので光沢のある面
とはならない。A surface with uniform film thickness can be obtained. However, polishing with a lapping film makes the coated surface rough and does not result in a glossy surface.
（問題を解決する為の手段）
印刷ケ施して基板上に着色インキ被膜を形成し、このの
ち表面平滑の為ラッピングフィルムによる研磨の後、更
に表面を平滑にする為１粒径０．０６μｍ〜１μｍであ
るアルミナ等の微粒子を水等の液体に溶かした懸濁液を
用いることによって、ラッピングフィルムによって粗面
にされた着色インキ被膜を、極めて平滑な面にし、透明
性を向上、させたカラーフィルターを得る。(Means for solving the problem) Printing is performed to form a colored ink film on the substrate, and after that, polishing with a lapping film to make the surface smooth, and then polishing with a lapping film to make the surface smoother. By using a suspension of fine particles such as alumina with a diameter of 1 μm dissolved in a liquid such as water, the colored ink film, which was roughened by the wrapping film, is made into an extremely smooth surface, improving transparency and color. Get a filter.
特に、微粒子？液体に混合した懸濁液による研磨では、
ラッピングによる粗面を光沢のある平滑な面とする効果
がある。研磨は、一般的に研磨用゛のやｊわらかい布に
懸濁ケしみこませたものを使用して行なわれる。Particularly fine particles? In polishing with a suspension mixed with a liquid,
It has the effect of turning a rough surface caused by lapping into a glossy and smooth surface. Polishing is generally carried out using a soft polishing cloth impregnated with a suspension.
したがって、やわらかい布と粒径の非常に小さな砥粒（
０，０６〜０．６μｍ）によって、光沢のある表面に仕
上げることが可能となる。Therefore, a soft cloth and very small abrasive grains (
0.06 to 0.6 μm), it is possible to finish the surface with gloss.
く作用〉
印刷インキを用いて、パターン上に着色インキ被膜を形
成した後、該被膜面をラッピングフィルムおよびアルミ
ナ等の微粒子による材料を用いて研磨することによって
、印刷方式を用いることによる特有の凹凸、また、その
他、光学系としての観点から光を散乱させるような、極
めて微小な凹凸を除去することによって、被膜面の平滑
化およさらに詳細に説明すれば、第２図［ａ）及び（ｂ
）は。Effect> After forming a colored ink film on the pattern using printing ink, the surface of the film is polished using a wrapping film and a material made of fine particles such as alumina, thereby eliminating the unique unevenness caused by using the printing method. In addition, from the viewpoint of an optical system, by removing extremely minute irregularities that scatter light, the surface of the coating can be smoothed. b
)teeth.
円圧式の転写用ブランケットを装備した凹成オフセット
印刷方式によりガラス基板αυ上に印刷形成した後の着
色インキ被膜Ｑ２の転写用ブランケットの転がり方向断
面（以下縦断面と称す）及び転写用ブランケットの転が
り方向に垂直な断面（以下横断面と称す）の形状である
。第２図は、基板（１１）上を図面右から左方向に円圧
式の転写用ブランケットを回転させながら移動させて、
着色インキ被膜０２１を基板ｕＤ上に、１色ごとに印刷
したものである。第ｆ図（ａ）の縦断面図は各色の画素
内で、プランケットが、最終的に印刷し終る側の着色イ
ンキ被膜（２）の左端に着色インキの盛り上りが発生し
。Cross section in the rolling direction of the transfer blanket (hereinafter referred to as longitudinal section) of the colored ink film Q2 after printing and forming on the glass substrate αυ by a recessed offset printing method equipped with a circular pressure transfer blanket and the rolling direction of the transfer blanket This is the shape of a cross section perpendicular to the direction (hereinafter referred to as a cross section). In Figure 2, a circular pressure transfer blanket is rotated and moved from the right to the left in the drawing on the substrate (11).
A colored ink film 021 is printed for each color on the substrate uD. In the vertical cross-sectional view of FIG.
２色目、３色目と刷り重ねてゆくと、各色の境界が膜厚
最低となることを示す。また、第２図（ｂｌの横断面図
は、Ｎ色インキ被膜面が各色の画素内で円弧状になり、
２色目、３色目と刷り重ねてゆくと各色の境界で膜厚が
最小で、各色の中央部分で膜厚が最大となることを示す
。このように着色インキ被膜を基板上に赤、緑、青の３
色を印刷した後、アルミナ導の微粒子を貼着したラッピ
ングフィルムを用いて、各色画素内の盛り上り部分を除
でいる。しかし、その後、アルミナ、ジルコニア。As the second and third colors are printed, the film thickness becomes the minimum at the boundary between each color. In addition, in the cross-sectional view of FIG. 2 (bl), the N color ink coating surface has an arc shape within each color pixel,
As the second and third colors are printed, the film thickness is the minimum at the boundary between each color, and the film thickness is maximum at the center of each color. In this way, colored ink films are applied to the substrate in three colors: red, green, and blue.
After printing the colors, a wrapping film with alumina conductive particles attached is used to remove the raised portions within each color pixel. But then alumina and zirconia.
ダイアモンド等の微粒子を、水または、アルコールを主
成分とする溶液に、混合、拡散した研磨剤によって粗い
被膜面を研磨する。そうすると、ラッピングによる粗面
ｂ″−１極めて平滑な面となり、光学的な特性が改良さ
れ、透明感の向上が計れる。A rough coating surface is polished using an abrasive in which fine particles such as diamond are mixed and diffused in a solution containing water or alcohol as the main component. In this case, the rough surface b''-1 becomes an extremely smooth surface due to lapping, the optical characteristics are improved, and the sense of transparency can be improved.
研磨前において、２μｍの膜厚差があった被膜面が、研
磨後、膜厚差０．１μｍ以下となる。Before polishing, the coating surface had a film thickness difference of 2 μm, but after polishing, the film thickness difference became 0.1 μm or less.
（発明の効果）
本発明は、印刷方式によって製造されるカラーフィルタ
ーにおけるガラス基板に形成した着色インキ被膜面に発
生する不均一な凹凸？極めて平滑にし、また塵埃等によ
る数１０μｍにおよぶ突起を削り取ること／ｌｔできる
ため、カラーフィルタごと他の電極基板や偏光板との貼
り合わせにおいて。(Effects of the Invention) The present invention deals with unevenness that occurs on the surface of a colored ink coating formed on a glass substrate in a color filter manufactured by a printing method. Because it is extremely smooth and can remove protrusions of several tens of micrometers due to dust, etc., it can be used when bonding the color filter together with other electrode substrates or polarizing plates.
均一な貼着加工が可能となり、また、Ｎ色インキ得られ
、且つカラーフィルターの透明性及びカラーフィルター
を構成するＢ、Ｇ、Ｒ各色の分光透過率特性が良好にな
り、液晶カラーディスプレイ等においても、適正なカラ
ーバランスが得られる。Uniform adhesion processing is possible, N-color ink can be obtained, and the transparency of the color filter and the spectral transmittance characteristics of the B, G, and R colors that make up the color filter are good, making it suitable for liquid crystal color displays, etc. Also, proper color balance can be obtained.
また、研磨は削り取る原理なので、着色インキ被膜？よ
り−ｊ−薄くすることが可能である、液晶カラーディス
プレイにおいては、液晶特有の視角の問題ｂ″−あり、
カラーフィルターの薄膜化が要求されている。Also, since polishing is the principle of scraping off, is it a colored ink film? In liquid crystal color displays, which can be made thinner than -j-, there is a viewing angle problem b''- peculiar to liquid crystals,
There is a demand for thinner color filters.
以上のように、研磨は印刷方式によるカラーフィルター
の製造において、顕著な、効果を奏するものである７
〈実施例１〉
凹版オフセット印刷機により、顔料、浴剤タイプのエポ
キシ樹脂系ワニスを主体とする着色インキを用いて、ガ
ラスの基板αυ上に凹版セルパターンに従って３〜５μ
ｍの膜厚の着色インキ被膜（１′２を形成したところ、
この着色インキ被膜（１２１が印刷方向後端に盛り上っ
た（Ｍａｘ膜厚５広。）。As mentioned above, polishing has a remarkable effect in the production of color filters using the printing method. 3 to 5 microns according to the intaglio cell pattern on the glass substrate αυ using colored ink.
When a colored ink film (1'2) with a film thickness of m was formed,
This colored ink film (121) was raised at the rear end in the printing direction (Maximum film thickness: 5 wide).
この後、乾燥硬化し、この着色インキ被膜アルミナ膜？
、砥粒の粒径０，１μｍのラッピングフィルムを用いて
研磨した後、片面研磨装置にウレタンの研磨布を取り付
け、研磨材として、平均粒径０．０６μｍのアルミナ懸
濁液を用いて再研磨した。After this, dry and harden this colored ink coating alumina film?
After polishing using a lapping film with an abrasive grain size of 0.1 μm, a urethane polishing cloth was attached to a single-sided polishing device, and re-polishing was performed using an alumina suspension with an average grain size of 0.06 μm as the polishing material. did.
研磨前、２μｍあった着色インキ被膜Ｑ２＋の膜厚差が
０．２μｍ以内になり、極めて平滑で光沢のある表面が
得られた。The difference in thickness of the colored ink film Q2+, which was 2 μm before polishing, was reduced to within 0.2 μm, and an extremely smooth and glossy surface was obtained.
第１図（ａ）は同研磨した着色インキ被膜の印刷方向断
面図であり、第１図（ｂｌは同印刷方向に垂直な断面図
である。
第２図（ａｌは、Ｎ色インキ被膜の印刷方向断面図であ
り、第２図ｔｂ）は同印刷方向に垂直な断面図である。
（２）・・・赤色インキ被［［Ｑ・・・緑色インキ被膜
（Ｂｌ・・・青色インキ被膜 （１１）・・・基板＋
１２・・・着色インキ被膜Figure 1 (a) is a sectional view in the printing direction of the same polished colored ink film, and Figure 1 (bl is a sectional view perpendicular to the same printing direction). It is a cross-sectional view in the printing direction, and FIG. 2 tb) is a cross-sectional view perpendicular to the same printing direction. (11)...Substrate+
12... Colored ink film
Claims (4)
ターン状に着色インキ被膜を形成した後、被膜面をラッ
ピングフィルムおよび懸濁液で研磨することを特徴とす
るカラーフィルター製造方法。(1) A method for manufacturing a color filter, which comprises forming a colored ink film in a pattern on a substrate using printing ink using a printing method, and then polishing the surface of the film with a lapping film and a suspension.
印刷方式である特許請求の範囲第１項記載のカラーフィ
ルター製造方法。(2) The color filter manufacturing method according to claim 1, wherein the printing method is screen printing or intaglio offset printing.
ワニスを主体とする特許請求の範囲第１項および第２項
記載のカラーフィルター製造方法。(3) The method for producing a color filter according to claims 1 and 2, wherein the printing ink is mainly a pigment, solvent-type epoxy resin varnish.
ル等の混合した特許請求の範囲第１項、第２項および第
３項記載のカラーフィルター製造方法。(4) The method for manufacturing a color filter according to claims 1, 2 and 3, wherein the suspension is a mixture of fine particles such as alumina and water or alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125236A JPS62280802A (en) | 1986-05-30 | 1986-05-30 | Manufacture of color filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125236A JPS62280802A (en) | 1986-05-30 | 1986-05-30 | Manufacture of color filter |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6255643A Division JPH07151911A (en) | 1994-10-20 | 1994-10-20 | Color filter and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62280802A true JPS62280802A (en) | 1987-12-05 |
Family
ID=14905169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61125236A Pending JPS62280802A (en) | 1986-05-30 | 1986-05-30 | Manufacture of color filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62280802A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07151911A (en) * | 1994-10-20 | 1995-06-16 | Toppan Printing Co Ltd | Color filter and its production |
| JP2002107528A (en) * | 2000-09-29 | 2002-04-10 | Dainippon Printing Co Ltd | Method for manufacturing color filter |
| US7183023B2 (en) * | 2003-04-07 | 2007-02-27 | Dai Nippon Printing Co., Ltd. | Method for manufacturing color filter |
| JP2010217927A (en) * | 2010-06-25 | 2010-09-30 | Dainippon Printing Co Ltd | Method for producing color filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613122A (en) * | 1984-06-15 | 1986-01-09 | Sony Corp | Production of liquid crystal color display element |
-
1986
- 1986-05-30 JP JP61125236A patent/JPS62280802A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613122A (en) * | 1984-06-15 | 1986-01-09 | Sony Corp | Production of liquid crystal color display element |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07151911A (en) * | 1994-10-20 | 1995-06-16 | Toppan Printing Co Ltd | Color filter and its production |
| JP2002107528A (en) * | 2000-09-29 | 2002-04-10 | Dainippon Printing Co Ltd | Method for manufacturing color filter |
| US7183023B2 (en) * | 2003-04-07 | 2007-02-27 | Dai Nippon Printing Co., Ltd. | Method for manufacturing color filter |
| JP2010217927A (en) * | 2010-06-25 | 2010-09-30 | Dainippon Printing Co Ltd | Method for producing color filter |
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