JPH021311B2 - - Google Patents
Info
- Publication number
- JPH021311B2 JPH021311B2 JP57002506A JP250682A JPH021311B2 JP H021311 B2 JPH021311 B2 JP H021311B2 JP 57002506 A JP57002506 A JP 57002506A JP 250682 A JP250682 A JP 250682A JP H021311 B2 JPH021311 B2 JP H021311B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- color
- display
- color filter
- film
- 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.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 description 11
- 210000004027 cell Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000003086 colorant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 210000002858 crystal cell Anatomy 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation 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
- 239000007788 liquid Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】
発明の技術分野
本発明は、色フイルタを液晶表示パネルに組込
んだ多色表示用の液晶表示装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a liquid crystal display device for multicolor display in which a color filter is incorporated into a liquid crystal display panel.
発明の技術的背景およびその問題点
従来のフル・カラー液晶表示装置としては、
個々にはモノカラー表示であるゲスト・ホスト液
晶表示装置を３層に重ねて多層化し、各層にそれ
ぞれ異なつた染料を混入したものが知られてい
る。即ち第１図に示すように、３原色の３層の液
晶層３1，３2，３3をガラス基板１1〜１4の間に保
持し、各層毎に対向する電極を直交させた帯状表
示電極２1〜２6により各層毎に独立してコントロ
ールできるように構成し減色混合により任意の色
を表示するようにしたものである。しかしこの方
法では、多層構造であるため光の減衰が大きく、
一方多層化によりセル厚が厚く、しかも、所望の
カラーが厚い多層部で減色表示されるため斜め方
向の視野に対し色ずれを生じ視角特性を悪くして
いた。Technical background of the invention and its problems As a conventional full color liquid crystal display device,
Individually, it is known that a guest-host liquid crystal display device with a monochrome display is stacked in three layers to form a multilayer structure, and each layer is mixed with a different dye. That is, as shown in FIG. 1, three liquid crystal layers 3 1 , 3 2 , 3 3 of three primary colors are held between glass substrates 1 1 to 1 4 , and a strip-like structure is formed in which opposing electrodes are orthogonally crossed for each layer. The display electrodes 2 1 to 2 6 are arranged so that each layer can be controlled independently, and any color can be displayed by subtractive color mixing. However, with this method, the light attenuation is large due to the multilayer structure.
On the other hand, due to the multilayer structure, the cell thickness is increased, and the desired color is displayed in reduced color in the thick multilayer portion, resulting in color shift in oblique viewing directions and worsening viewing angle characteristics.
これに対し、原理的に視野角の広いカラー表示
用セル構造として、１層のセルの中に３原色の画
素を配置する方法が提案されている。これは同一
面内に３原色を配置し、カラーCRT（陰極線管）
で３原色の螢光体を塗り分けると同様に、液晶セ
ルの画素表示電極の各画素の部分に３原色の色紙
を順次張りつけるものでカラーCRTの場合は電
子ビームで螢光体を発光させるのに対し、液晶セ
ルは色フイルタを通し透過光あるいは反射光を見
る。液晶セルにはたとえば黒色の染料（ゲスト材
料）と液晶（ホスト材料）の混合物をセル厚を７
〜10μmとして封入し、各画素に対応した表示電
極に印加した電圧で画素の光透過量あるいは光反
射量を制御すれば、任意の色を表示できる。この
構造は第２図に示すようにゲスト・ホスト型液晶
１４を保持する一対のガラス基板１１1，１１2の
それぞれに互いに直交する複数本ずつの透明な帯
状表示電極１２1，１２2を形成し一方の基板１１
２の上の表示電極の表面には、電極形状に合致さ
せて赤フイルタ１３Ｒ，緑フイルタ１３Ｇ，青フ
イルタ１３Ｂをこの順に繰返し取付けてある。こ
のフイルタはゼラチン・フイルタ，PVA（ポリビ
ニール・アルコール）フイルタ、スクリーン・イ
ンクなどの材料でできている。 In contrast, a method has been proposed as a color display cell structure with a wide viewing angle in principle, in which pixels of three primary colors are arranged in one layer of cells. This is a color CRT (cathode ray tube) that arranges three primary colors on the same plane.
Similar to painting the phosphors of the three primary colors separately, colored paper of the three primary colors is successively pasted onto each pixel part of the pixel display electrode of a liquid crystal cell.In the case of a color CRT, the phosphors are made to emit light using an electron beam. On the other hand, a liquid crystal cell sees transmitted light or reflected light through a color filter. For example, in a liquid crystal cell, a mixture of black dye (guest material) and liquid crystal (host material) is applied to a cell thickness of 7 mm.
By enclosing the pixel to a thickness of ~10 μm and controlling the amount of light transmission or reflection of each pixel by applying a voltage to the display electrode corresponding to each pixel, any color can be displayed. In this structure, as shown in FIG. 2, a plurality of transparent strip-shaped display electrodes 12 1 , 12 2 are formed perpendicularly to each other on each of a pair of glass substrates 11 1 , 11 2 that hold a guest-host type liquid crystal 14 . The other board 11
A red filter 13R, a green filter 13G, and a blue filter 13B are repeatedly attached in this order to the surface of the upper display electrode 2 to match the shape of the electrode. This filter is made of materials such as gelatin filter, PVA (polyvinyl alcohol) filter, and screen ink.
しかしながらこの方式では、色フイルタは液晶
の動作領域となるゲストホスト型液晶１４に直接
接触するために、液晶と色フイルタが反応を起し
たり、液晶層７〜10μm厚に比べて色フイルタを
十分薄くせざるを得ないがために着色濃度が薄い
こと、さらには、ゲストホスト型液晶を配向制御
する液晶分子配向効果を持たせにくいことなどの
欠点があつた。 However, in this method, since the color filter is in direct contact with the guest-host type liquid crystal 14, which is the operating area of the liquid crystal, the liquid crystal and the color filter may cause a reaction, or the color filter may not be sufficiently thick compared to the liquid crystal layer 7 to 10 μm thick. Since it has to be thin, the coloring density is low, and furthermore, it is difficult to provide the liquid crystal molecule alignment effect that controls the alignment of the guest-host type liquid crystal.
発明の目的
本発明は、上記従来の欠点を解消し、広視角特
性液晶と色フイルタの直接接触を回避し、さら
に、良質の分光特性を付与して良好な多色表示を
可能とした液晶表示装置を提供するものである。Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, avoids direct contact between the wide-viewing-angle liquid crystal and color filters, and provides a liquid crystal display with good spectral characteristics to enable good multicolor display. It provides equipment.
発明の概要
本発明は１層の液晶層でカラー表示を行なう第
２図の構造を改良し、色フイルタを設ける側の電
極基板を、基板内部に各色フイルタを埋込んだ形
とし、色フイルタが埋込まれた基板表面に透明膜
を介して各色フイルタ膜に対応して透明表示電極
を配設して構成する。Summary of the Invention The present invention improves the structure shown in FIG. 2 in which color display is performed using a single liquid crystal layer, and the electrode substrate on the side where color filters are provided has each color filter embedded inside the substrate. Transparent display electrodes are arranged on the surface of the embedded substrate via a transparent film to correspond to each color filter film.
発明の効果
本発明によれば、液晶材料と色フイルタが直接
接触することはなくなり従つて両者の反応による
液晶材料の劣化がないため、長寿命の液晶表示装
置が実現する。また色フイルタの上を透明膜でお
おつているから、液晶の配向処理を、色フイルタ
の特性を損うことなく行うことができる。更に表
示電極と色フイルタを分離しているから、各色フ
イルタの材料選択、着色濃度設定など、幅広い設
計条件の選択が可能となり、良好な多色表示を行
うことができる。Effects of the Invention According to the present invention, there is no direct contact between the liquid crystal material and the color filter, and therefore, there is no deterioration of the liquid crystal material due to a reaction between the two, thereby realizing a liquid crystal display device with a long life. Furthermore, since the color filters are covered with a transparent film, the liquid crystal alignment process can be performed without impairing the characteristics of the color filters. Furthermore, since the display electrodes and color filters are separated, it is possible to select a wide range of design conditions, such as the selection of materials for each color filter and the setting of coloring density, making it possible to perform a good multicolor display.
発明の実施例
本発明の一実施例の要部断面を第３図に示す。
一方の透明基板２１1上には公知の手段により、
赤色に染色された帯状色フイルタ膜２２Ｒ、緑色
に染色された帯状色フイルタ膜２２Ｇおよび青色
に染色された帯状色フイルタ膜２２Ｂをそれぞれ
所定の位置に所定寸法で被着形成している。この
場合各色フイルタ膜２２Ｒ，２２Ｇ，２２Ｂは第
４図のＲ（赤），Ｇ（緑），Ｂ（青）に示すような分
光透過率特性を有して形成される。各色フイルタ
膜の間隙には、光学的に黒である不透明膜２３と
して例えばクロム膜のような金属膜を配設してい
る。そしてこの基板上全面に透明膜２４を介し
て、各色フイルタ膜２２Ｒ，２２Ｇ，２２Ｂに対
応する位置に透明な帯状表示電極２５1を配設し
ている。透明膜２４は例えば蒸着あるいはスパツ
タ法による膜であつてその膜厚は、1000〜5000Å
あればよい。またこの透明膜２４として100〜
500μm程度のガラス膜を用いこれを接着材として
透明エポキシ樹脂材により取付けてもよい。一方
対向する透明基板２１2上には、下の表示電極２
５1と直交する複数本の帯状表示電極２５2を形成
し、これら対向する基板の両帯状表示電極２５1
と２５2でマトリクスを形成し、その交点を表示
画素としている。この液晶セルにはたとえば黒色
の染料と液晶の混合物である黒色表示用ゲスト・
ホスト液晶２６が封入してあつて、各画素に対応
した表示電極に印加した電圧で画素の光透過量あ
るいは光反射量を制御する。その際これら画素に
合致した赤、緑、青の３つの各色フイルタ膜２２
Ｒ，２２Ｇ，２２Ｂからの透過光スペクトルある
いは反射光スペクトルを合成したものが所望の表
示色となるように、各画素の透過量が制御され
る。たとえば、電圧OVで対応フイルタの光透過
量は零となり、電圧4V（飽和値）で光透過量は最
大となり対応フイルタの透過スペクトルをそのま
ま透過できる。Embodiment of the Invention A cross section of a main part of an embodiment of the present invention is shown in FIG.
On one transparent substrate 21 1 , by known means,
A band-shaped color filter film 22R dyed in red, a band-shaped color filter film 22G dyed in green, and a band-shaped color filter film 22B dyed in blue are each formed in a predetermined position and with a predetermined size. In this case, the color filter films 22R, 22G, and 22B are formed to have spectral transmittance characteristics as shown in R (red), G (green), and B (blue) in FIG. 4. A metal film, such as a chrome film, is disposed in the gap between each color filter film as an optically black opaque film 23. Transparent band-shaped display electrodes 25 1 are disposed on the entire surface of this substrate via a transparent film 24 at positions corresponding to the respective color filter films 22R, 22G, and 22B. The transparent film 24 is formed by, for example, vapor deposition or sputtering, and has a thickness of 1000 to 5000 Å.
Good to have. Also, as this transparent film 24, 100~
A glass film of about 500 μm may be used and attached using a transparent epoxy resin material as an adhesive. On the other hand, on the opposing transparent substrate 21 2 , there is a lower display electrode 2
A plurality of strip-shaped display electrodes 25 2 are formed perpendicular to 5 1 , and both strip-shaped display electrodes 25 1 of these opposing substrates are formed.
and 25 2 form a matrix, and the intersections are used as display pixels. This liquid crystal cell contains, for example, a guest liquid for black display, which is a mixture of black dye and liquid crystal.
A host liquid crystal 26 is sealed, and the amount of light transmission or light reflection of each pixel is controlled by the voltage applied to the display electrode corresponding to each pixel. At that time, three color filter films 22 of red, green, and blue that match these pixels are applied.
The amount of transmission of each pixel is controlled so that the combination of transmitted light spectra or reflected light spectra from R, 22G, and 22B becomes a desired display color. For example, at a voltage of OV, the amount of light transmitted through the corresponding filter becomes zero, and at a voltage of 4 V (saturation value), the amount of light transmitted becomes maximum, allowing the transmission spectrum of the corresponding filter to be transmitted as is.
本実施例による効果と従来技術の差違は次の通
りである。 The differences between the effects of this embodiment and the prior art are as follows.
色フイルタを液晶材料に接触させることな
く、色フイルタを基板内部に収容、内蔵させた
形として表示用電極２５1と色フイルタ膜２２
Ｒ，２２Ｇ，２２Ｂとを分離させている。その
結果色フイルタに起因する液晶材料の劣化すな
わち連続動作を行なつた際におけるセル電流値
の増大などが減少しセル寿命が増大する。 The display electrode 25 1 and the color filter film 22 are arranged in such a way that the color filter is accommodated and built into the substrate without bringing the color filter into contact with the liquid crystal material.
R, 22G, and 22B are separated. As a result, the deterioration of the liquid crystal material caused by the color filters, that is, the increase in cell current value during continuous operation, etc., is reduced, and the cell life is increased.
各色フイルタの材料選択、色濃度設定は、第
３図の如く表示電極と色フイルタを分離したこ
とから幅広い設計が可能となりカラー表示に十
分な光学的特性を得ることが可能である。 Regarding material selection and color density setting for each color filter, since the display electrode and color filter are separated as shown in FIG. 3, a wide variety of designs are possible, and it is possible to obtain optical characteristics sufficient for color display.
液晶分子の配向制御は色フイルタと無関係な
透明膜２４上で可能であり、そのための配向処
理方法として、斜方蒸着配向、ラビング配向処
理など液晶材料の特性に適合する配向処理を選
ぶことができ、表示パネルのコントラスト比、
スイツチング時のレスポンス特性が改善でき
る。 The alignment of liquid crystal molecules can be controlled on the transparent film 24 independent of color filters, and alignment treatments suitable for the characteristics of the liquid crystal material, such as oblique evaporation alignment and rubbing alignment, can be selected as the alignment treatment method for this purpose. , display panel contrast ratio,
The response characteristics during switching can be improved.
また各色フイルタ２２Ｒ，２２Ｇ，２２Ｂの
間隙に不透明膜２３を設け、斜め方向から進入
する光が非フイルタ部を透過するのを防止して
いる。従つて、３つの各色フイルタ膜２２Ｒ，
２２Ｇ，２２Ｂからの透過光を合成して所望色
を表示する際の障害が除かれる。一方、この不
透明膜２３は各色フイルタ膜２２Ｒ，２２Ｇ，
２２Ｂ相互間の色分離をブラツク化することに
よつて明瞭化しており実質的に表示パネルの表
示コントラスト比を向上させることができる。 Further, an opaque film 23 is provided in the gaps between the color filters 22R, 22G, and 22B to prevent light entering from an oblique direction from passing through the non-filtered portion. Therefore, the three color filter films 22R,
Obstacles in displaying a desired color by combining transmitted light from 22G and 22B are removed. On the other hand, this opaque film 23 has filter films 22R, 22G, and
The color separation between 22B and 22B is made clear by blacking, and the display contrast ratio of the display panel can be substantially improved.
更にセルを構成する基板２１1の裏面に各色
フイルタを取付ける方法と比べると本発明は表
示電極２５1に接する液晶２６とフイルタ膜２
２Ｒ，２２Ｇ，２２Ｂの距離が至近のため色フ
イルタを通して画素電極部を注視したときの視
野角は拡大していることは明らかである。 Furthermore, compared to the method of attaching each color filter to the back surface of the substrate 21 1 constituting the cell, the present invention provides a method in which the liquid crystal 26 and the filter film 2 in contact with the display electrode 25 1 are attached.
It is clear that since the distances between 2R, 22G, and 22B are close, the viewing angle when viewing the pixel electrode portion through the color filter is expanded.
上記実施例においては各色フイルタ相互間に不
透明部となる金属膜を形成したが、第５図に示す
ようにたとえば帯状フイルタ膜２２Ｒ，２２Ｇ，
２２Ｂを３本１組とし、この３本毎に前述の不透
明膜２３を形成しても上記実施例と同等に近い効
果が得られる。また上記実施例では画素表示用電
極として外部にリードが引出されるマトリクス電
極構造を取り上げたが、第３図における基板２１
２としてMOS−トランジスタ・アレイを集積した
Siウエハを用いるアクテイブマトリクス基板、あ
るいはTFTなどのスイツチング素子アレイを集
積形成した透明なガラス基板等によるスイツチン
グ素子アレイ基板を用いてセルを構成しても同等
の効果を発揮できることは明らかである。 In the above embodiment, a metal film serving as an opaque portion was formed between each color filter, but as shown in FIG.
Even if 22B are made into a set of three and the aforementioned opaque film 23 is formed for every three, an effect similar to that of the above embodiment can be obtained. Further, in the above embodiment, a matrix electrode structure in which leads are drawn out to the outside as a pixel display electrode was taken up, but the substrate 21 in FIG.
2 integrated MOS-transistor array
It is clear that the same effect can be achieved by configuring the cell using an active matrix substrate using a Si wafer or a switching element array substrate such as a transparent glass substrate on which a switching element array such as TFT is integrated.
第１図および第２図は従来の多色表示用液晶表
示装置の要部断面図、第３図は本発明の一実施例
における液晶表示装置の要部断面図、第４図は第
３図の色フイルタの光学的特性を示す図、第５図
は第３図の色フイルタ基板の別の実施例を示す基
板正面図である。
２１1，２１2…透明基板、２２Ｒ，２２Ｇ，２
２Ｂ…色フイルタ膜、２３…不透明膜、２４…透
明膜、２５1，２５2…帯状表示電極、２６…ゲス
ト・ホスト型液晶。
1 and 2 are sectional views of main parts of a conventional liquid crystal display device for multicolor display, FIG. 3 is a sectional view of main parts of a liquid crystal display device according to an embodiment of the present invention, and FIG. FIG. 5 is a front view of another embodiment of the color filter substrate of FIG. 3. FIG. 21 1 , 21 2 ...transparent substrate, 22R, 22G, 2
2B... Color filter film, 23... Opaque film, 24... Transparent film, 25 1 , 25 2 ... Band-shaped display electrode, 26... Guest-host type liquid crystal.
Claims (1)
極基板側には表示画素に対応してカラー表示用の
複数の色フイルタを具備し、対向電極間の電圧を
制御して表示部の光透過量を選択的に変化させる
ことによりカラー表示を行なう液晶表示装置にお
いて、 色フイルタを備えた側の電極基板は、所定の基
板に各表示画素に対応して色フイルタ膜及び隣接
する色フイルタ膜の境界部に不透明膜を配設し、
その上に透明膜を介して透明電極を配設して構成
したことを特徴とする液晶表示装置。[Claims] 1. A liquid crystal is held between two electrode substrates, and one electrode substrate side is provided with a plurality of color filters for color display corresponding to the display pixels, and the voltage between the opposing electrodes is In a liquid crystal display device that performs color display by controlling and selectively changing the amount of light transmitted through the display section, the electrode substrate on the side provided with the color filter is provided with a color filter on a predetermined substrate corresponding to each display pixel. An opaque film is provided at the boundary between the film and an adjacent color filter film,
A liquid crystal display device comprising a transparent electrode disposed thereon via a transparent film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57002506A JPS58120287A (en) | 1982-01-11 | 1982-01-11 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57002506A JPS58120287A (en) | 1982-01-11 | 1982-01-11 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58120287A JPS58120287A (en) | 1983-07-18 |
| JPH021311B2 true JPH021311B2 (en) | 1990-01-11 |
Family
ID=11531243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57002506A Granted JPS58120287A (en) | 1982-01-11 | 1982-01-11 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58120287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123097A1 (en) | 2007-03-20 | 2008-10-16 | Toray Industries, Inc. | Black resin composition, resin black matrix, color filter and liquid crystal display |
| WO2010147098A1 (en) | 2009-06-15 | 2010-12-23 | 東レ株式会社 | Black composite particle, black resin composition, color filter substrate and liquid crystal display |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2780724B2 (en) * | 1983-12-16 | 1998-07-30 | 工業技術院長 | Manufacturing method of color filter |
| JPS6173183A (en) * | 1984-09-19 | 1986-04-15 | 松下電器産業株式会社 | Matrix type liquid crystal display and manufacture thereof |
| JP2666252B2 (en) * | 1985-12-26 | 1997-10-22 | セイコーエプソン株式会社 | Color liquid crystal display |
| JP2593644B2 (en) * | 1986-03-28 | 1997-03-26 | 日本写真印刷株式会社 | Liquid crystal display |
| JP2576468B2 (en) * | 1986-06-19 | 1997-01-29 | セイコーエプソン株式会社 | Liquid crystal display |
| JPS6370828A (en) * | 1986-09-12 | 1988-03-31 | Matsushita Electric Ind Co Ltd | Matrix type liquid crystal display device and its production |
| JPH01123217A (en) * | 1987-11-09 | 1989-05-16 | Sharp Corp | Liquid crystal display device |
| KR920003352B1 (en) * | 1988-12-31 | 1992-04-30 | 삼성전자 주식회사 | Color filter of lcd and making method of the same |
| JPH0322221U (en) * | 1989-07-14 | 1991-03-07 | ||
| US5058997A (en) * | 1989-08-11 | 1991-10-22 | International Business Machines Corporation | Tft lcd with optical interference color filters |
| JPH04348142A (en) * | 1991-03-29 | 1992-12-03 | Agency Of Ind Science & Technol | Resin composition for color filter formation |
| JP2974520B2 (en) * | 1991-10-25 | 1999-11-10 | キヤノン株式会社 | Electrode substrate and liquid crystal element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58102976A (en) * | 1981-12-15 | 1983-06-18 | 三洋電機株式会社 | Liquid crystal display element |
-
1982
- 1982-01-11 JP JP57002506A patent/JPS58120287A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58102976A (en) * | 1981-12-15 | 1983-06-18 | 三洋電機株式会社 | Liquid crystal display element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123097A1 (en) | 2007-03-20 | 2008-10-16 | Toray Industries, Inc. | Black resin composition, resin black matrix, color filter and liquid crystal display |
| WO2010147098A1 (en) | 2009-06-15 | 2010-12-23 | 東レ株式会社 | Black composite particle, black resin composition, color filter substrate and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58120287A (en) | 1983-07-18 |
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