JPS63146019A - Color liquid crystal display element - Google Patents
Color liquid crystal display elementInfo
- Publication number
- JPS63146019A JPS63146019A JP61292432A JP29243286A JPS63146019A JP S63146019 A JPS63146019 A JP S63146019A JP 61292432 A JP61292432 A JP 61292432A JP 29243286 A JP29243286 A JP 29243286A JP S63146019 A JPS63146019 A JP S63146019A
- Authority
- JP
- Japan
- Prior art keywords
- color
- liquid crystal
- crystal display
- metal
- display element
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 28
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910001512 metal fluoride Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910001510 metal chloride Inorganic materials 0.000 claims abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 4
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 4
- 150000004767 nitrides Chemical class 0.000 claims abstract description 4
- 229910052976 metal sulfide Inorganic materials 0.000 claims description 3
- 239000010408 film Substances 0.000 abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 3
- QCCDYNYSHILRDG-UHFFFAOYSA-K cerium(3+);trifluoride Chemical compound [F-].[F-].[F-].[Ce+3] QCCDYNYSHILRDG-UHFFFAOYSA-K 0.000 abstract description 3
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 abstract description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 abstract description 3
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 239000000975 dye Substances 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 235000019646 color tone Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 239000002253 acid 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
- 210000004027 cell Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 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
- G02F1/133514—Colour filters
-
- 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
- G02F1/133514—Colour filters
- G02F1/133521—Interference filters
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)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、例えばＴＶ画像やカラーグラフィック画像を
゛表示するためのカラー液晶表示素子に関し、特に、カ
ラー表示のためのカラーフィルタの改良に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a color liquid crystal display element for displaying, for example, TV images or color graphic images, and particularly relates to improvements in color filters for color display.
「従来技術Ｊ
近年、液晶表示素子は、薄型で低電圧駆動で 、き、消
費電力か小さいという特色をもつことがら、フラットデ
ィスプレイとして急速に市場のニーズが高まってきでい
る。従来は、モノカラーのものが主流であったか、赤、
緑、青（以下、各々Ｒ，Ｇ、Ｂと略称する）等のカラー
フィルタを用い、フルカラー表示再縁なカラー液晶表示
素子が商品化されてきている。また、駆動の面からは、
走査線数の多い画像表示が可能などといったことから、
ＴＦＴなとのスイッチング素子で液晶を駆動する方式が
併せ用いられようとしでいる。"Prior Art J" In recent years, liquid crystal display elements have been characterized by being thin, low-voltage drive, and low power consumption, so the market needs for flat displays have been rapidly increasing. red,
Color liquid crystal display elements capable of full-color display have been commercialized using color filters such as green and blue (hereinafter abbreviated as R, G, and B, respectively). Also, from the perspective of driving,
Because it is possible to display images with a large number of scanning lines,
A system in which liquid crystals are driven by switching elements such as TFTs is also being used.
このような従来のカラー液晶表示素子の一例を説明する
と、例えば第４図に示すように、ガラス基板１の上に画
素電極６および配向膜７を順次形成したものと、ガラス
基板２の上にカラーフィルタ３、共通電極４および配向
膜５を順次積層して形成したものとを、各々の電極が内
側になるように対向配ゴし、周縁部をシール材１０によ
って貼り合せでセルを構成し、真空封入法等によって液
晶１１ヲ前記液晶セル内に充填し、ガラス基板１．２の
外側に偏光板８．９を設置しでいる。カラーフィルタ３
は、舅５図に示すように、Ｒ，Ｇ、８か各画素電極６に
対応して形成されている。このカラーフィルタ３として
は、例えば、カゼイン系やアクリル系の光感光性樹脂を
ガラス基板２に塗布し、フォトリングラフィ法によりパ
ターン化し、酸′１染料で染着させものや、昇華性染料
をガラス基板２に直接被着ざぜたものや、電着によりガ
ラス基板２に電気化学的に染顔料を析出させたものなど
が採用されている。To explain one example of such a conventional color liquid crystal display element, for example, as shown in FIG. A color filter 3, a common electrode 4, and an alignment film 5 are sequentially laminated and arranged facing each other so that each electrode is on the inside, and the peripheral edge is bonded with a sealing material 10 to form a cell. A liquid crystal 11 is filled into the liquid crystal cell by a vacuum filling method or the like, and a polarizing plate 8.9 is placed outside the glass substrate 1.2. color filter 3
As shown in FIG. 5, R, G, and 8 are formed corresponding to each pixel electrode 6. The color filter 3 may be made by coating a casein-based or acrylic-based photosensitive resin on the glass substrate 2, patterning it by photophosphorography, and dyeing it with an acid'1 dye, or dyeing it with a sublimation dye. Some examples include those in which the dye is deposited directly on the glass substrate 2, and those in which dyes and pigments are electrochemically deposited on the glass substrate 2 by electrodeposition.
「発明か解決しようとする問題点」
しかしなから、従来のカラー液晶表示素子におけるカラ
ーフィルタは、カラーの着色種として有機系の染料ある
いは顔料を用いており、第６図のＲ，０，８の波長に対
する透過率を表わした分光特′注に示されるように、Ｒ
，Ｇ、Ｂの波長の近くにおける透過率の立ち上かつか暖
やかであり、そのためカラーフィルタの色純度が低く、
鮮明な色調表示を提供することかできないという問題点
かあった。``Problems to be solved by the invention'' However, the color filters in conventional color liquid crystal display elements use organic dyes or pigments as the coloring species, and R, 0, 8 in FIG. As shown in the spectroscopic special note showing the transmittance for the wavelength of
, G, and B wavelengths, the rise of the transmittance is warm and the color purity of the color filter is low.
There was a problem in that it was not possible to provide clear color tone display.
したかっで、本発明の目的は、カラーフィルタの色純度
を分光学的に理想に近い状態に高めることにより、鮮明
な色調表示を可能としたカラー液晶表示素子を提供する
ことにある。Therefore, it is an object of the present invention to provide a color liquid crystal display element that can display clear color tones by increasing the color purity of a color filter to a spectroscopically ideal state.
「問題点を解決するための手段」
本発明によるカラー液晶表示素子は、カラーフィルタが
無機系の多層膜からなる干渉フィルターで構成されてい
ることを特徴とする。"Means for Solving the Problems" The color liquid crystal display element according to the present invention is characterized in that the color filter is composed of an interference filter made of an inorganic multilayer film.
「作用」
このように、無機系の多層膜からなる干渉フィルターを
用いることにより、Ｒ，０，８の波長の近くにおける透
過度の立ち上かつか急峻な分光特性を得ることかでき、
Ｒ，Ｇ、８の選択された波長のみそ透過させることによ
って、鮮明な色調表示を可能とすることができる。"Operation" In this way, by using an interference filter made of an inorganic multilayer film, it is possible to obtain a spectral characteristic with a steep rise in transmittance near the wavelengths of R, 0, and 8.
By transmitting only selected wavelengths of R, G, and 8, it is possible to display clear color tones.
上記干渉フィルターを構成する無機系多層膜の材料とし
では、例えば、酸化チタン、酸化ケイ素、酸化セリウム
、酸化ジルコニウム、酸化アルミニウム等の金属酸化物
、フッ化セリウム、フッ化マグネシウム、フッ化カルシ
ウム等の金属フッ化物、その他、金属硫化物、金属塩化
物、金属窒化物等であっても安定なもので１膜が形成で
きる材料であれば選択して使用できる。そして、これら
の中から材料を選定し、膜厚をコントロールして多層膜
を形成することにより、特定波長域の光を透過する干渉
フィルターを作成することができる。なお、Ｒ，Ｇ、Ｂ
の多色パターンは、それぞれの透過色を有する干渉フィ
ルターをフォトリングラフィ法などの技術によって順次
パターン形成することによって形成することができる。Examples of materials for the inorganic multilayer film constituting the interference filter include metal oxides such as titanium oxide, silicon oxide, cerium oxide, zirconium oxide, and aluminum oxide, cerium fluoride, magnesium fluoride, and calcium fluoride. Metal fluorides, metal sulfides, metal chlorides, metal nitrides, etc. can be selected and used as long as they are stable and can form a single film. By selecting materials from these materials and forming a multilayer film by controlling the film thickness, it is possible to create an interference filter that transmits light in a specific wavelength range. In addition, R, G, B
The multicolor pattern can be formed by successively patterning interference filters having respective transmission colors using a technique such as photolithography.
しかしながら、上記のような干渉フィルターを用いた場
合、干渉フィルターの一般的な欠点としで、視角が状く
なる傾向かある。すなわち、視角かすれると、−的とす
る色とはすれた色の光が透過して視認されるからである
。このため、未発明のカラー液晶表示素子は、特に投写
形ディスプレイのライトバルブとして適している。この
ようにライトバルブとしで利用した場合には、視角が固
定されるので、上記のような問題点が生じることはない
からである。ま・た、この場合には、アクティブマトリ
クスタイプに限らす、単純マトリクスタイプのものに適
用しても良好なコントラストが得られるという利点もあ
る。However, when using an interference filter as described above, a general drawback of interference filters is that the viewing angle tends to be distorted. That is, when the viewing angle is blurred, light of a color other than the target color is transmitted and visually recognized. Therefore, the uninvented color liquid crystal display element is particularly suitable as a light valve for a projection display. This is because when used as a light valve in this way, the viewing angle is fixed, so the above-mentioned problems do not occur. Additionally, in this case, there is an advantage that good contrast can be obtained even when applied not only to active matrix types but also to simple matrix types.
「発明の実施例」
茶１図には、本発明の一寅流側であるカラー液晶表示素
子の断面図が示されでいる。"Embodiments of the Invention" Fig. 1 shows a cross-sectional view of a color liquid crystal display element, which is one aspect of the present invention.
このカラー液晶表示素子は、笥４図に示した従来例にお
けるカラーフィルタ３の代りに、無機系多層膜からなる
干渉フィルタ１２を用いている他は、上記従来例と同様
な構成となっている。干渉フィルタ１２は、例えば、酸
化チタン、酸化ケイ素、酸化セリウム、酸化ジルコニウ
ム、酸化アルミニウム等の金属酸化物、フ・ン化セｌノ
ウム、フッ化マグネシウム、フッ化カルシウム等の金属
フッ化物、その他、金属硫化物、金属塩化物、金属窒化
物等から選択された材料がらなっ、これらの材料からな
る複数の薄膜を組合せて所定の厚さに積層して形成され
でいる。そして、Ｒ，６，８の各波長１浅の光を透過す
るそれぞれのフィルターを、フォトリングラフィ法など
によってパターン化しつつ順次形成することによって構
成されている。This color liquid crystal display element has the same structure as the conventional example described above, except that an interference filter 12 made of an inorganic multilayer film is used in place of the color filter 3 in the conventional example shown in Figure 4. . The interference filter 12 is made of, for example, metal oxides such as titanium oxide, silicon oxide, cerium oxide, zirconium oxide, and aluminum oxide, metal fluorides such as cerium fluoride, magnesium fluoride, and calcium fluoride, and others. It is made of a material selected from metal sulfides, metal chlorides, metal nitrides, etc., and is formed by combining a plurality of thin films made of these materials and laminating them to a predetermined thickness. It is constructed by sequentially forming filters of R, 6, and 8, each of which transmits light with one wavelength shallower, while patterning them using a photolithography method or the like.
こうして作成した干渉フィルター１２のＲ，Ｇ、Ｂの波
長に対する透通率を表わした分光特性を第２図に示す。FIG. 2 shows the spectral characteristics representing the transmittance of the interference filter 12 thus prepared for the R, G, and B wavelengths.
このように、Ｒ，Ｇ、Ｂの各特定波長領域においで、急
峻に立ち上がったスペクトルか得られる。このため、こ
の液晶表示素子は、各画素電極６を透過してくる光が、
純粋なＲ，Ｇ、８の色をなしてあつ、鮮やかな色調を有
する表示画像を得ることかできる。In this way, a spectrum that rises sharply can be obtained in each of the specific wavelength regions of R, G, and B. Therefore, in this liquid crystal display element, the light passing through each pixel electrode 6 is
It is possible to obtain a display image that is composed of pure R, G, and 8 colors and has a vivid tone.
菓３図には、上記カラー液晶表示素子を投写形ディスプ
レイのライトバルブとして使用した例が示されでいる。Figure 3 shows an example in which the color liquid crystal display element described above is used as a light valve of a projection display.
すなわち、図１こ占いて、２１は光源、２２は集光レン
ズ、２３は上記のカラー液晶表示素子、２４は拡大レン
ズ、２５は半透明スフ１ノーンである。光源２１がら発
せられる光は、集光レンズ２２で収束され、液晶表示素
子２３を通って電圧印加された画素電極６の部分から特
定の色の光となっで透過する。この透過光は、拡大しシ
ズ２４（こより拡大されて半透明スクリーン２５に写し
出される。このような投写形ディスプレイに適用した場
合には、視角か固定されるため、視角のすれによる干渉
フィルター１２の透過色のずれを防止でき、干渉フィル
ター１２の欠点も回避できる。That is, in FIG. 1, 21 is a light source, 22 is a condensing lens, 23 is the above-mentioned color liquid crystal display element, 24 is a magnifying lens, and 25 is a translucent screen. Light emitted from the light source 21 is converged by a condenser lens 22, passes through the liquid crystal display element 23, and passes through the portion of the pixel electrode 6 to which a voltage is applied as light of a specific color. This transmitted light is enlarged and projected onto a semi-transparent screen 25. When applied to such a projection display, the viewing angle is fixed, so the interference filter 12 may be affected by the deviation of the viewing angle. It is possible to prevent shifts in transmitted color and also avoid the drawbacks of the interference filter 12.
なお、上記実施例において、干渉フィルター１２は、共
通電極４か形成されたガラス基板２の内面に形成されで
いるか、干渉フィルター１２は、画素電極６か形成され
たガラス基板１の内面に形成してもよく、あるいはガラ
ス基板１．２のいずれかの外面に形成してもよい。In the above embodiments, the interference filter 12 is formed on the inner surface of the glass substrate 2 on which the common electrode 4 is formed, or the interference filter 12 is formed on the inner surface of the glass substrate 1 on which the pixel electrode 6 is formed. Alternatively, it may be formed on any outer surface of the glass substrate 1.2.
「発明の効果」
以上説明したように、本発明によれば、無機系の多層膜
からなる干渉フィルターを用いることにより、Ｒ，Ｇ、
８の波長の近くにあける透過率の立ち上かつか急峻な分
光特性を得ることかでき、Ｒ，Ｇ、８の選択された波長
のみを透過させることによって、鮮明な色調表示を可能
とすることかできる。"Effects of the Invention" As explained above, according to the present invention, by using an interference filter made of an inorganic multilayer film, R, G,
It is possible to obtain a steep spectral characteristic with a rise in transmittance near the wavelength of 8, and to enable clear color tone display by transmitting only selected wavelengths of R, G, and 8. I can do it.
第１図は本発明の一実施例であるカラー液晶表示素子の
断面図、第２図は上記カラー液晶表示素子に用いた干渉
フィルターの分光特性を示す図表、第３図は上記カラー
液晶表示素子を用いた投写形ディスプレイの一例を示す
概略断面図、第４図は従来のカラー液晶表示素子の一例
を示す断面図、菌５図はカラーフィルターのパターンを
示す平面図、第６図は従来のカラー液晶表示素子にあい
で用いられでいるカラーフィルタの分光特性を示す図表
である。
図中、１．２はガラス基板、４は共通電極、５は配向膜
、６は画素電極、７は配向膜、８．９は偏光板、１０は
シール材、１１は液晶、１２は干渉フィルターである。Fig. 1 is a cross-sectional view of a color liquid crystal display element which is an embodiment of the present invention, Fig. 2 is a chart showing the spectral characteristics of the interference filter used in the above color liquid crystal display element, and Fig. 3 is a diagram showing the above color liquid crystal display element. 4 is a sectional view showing an example of a conventional color liquid crystal display element, Fig. 5 is a plan view showing a color filter pattern, and Fig. 6 is a schematic sectional view showing an example of a conventional color liquid crystal display element. 1 is a chart showing spectral characteristics of color filters used in color liquid crystal display elements. In the figure, 1.2 is a glass substrate, 4 is a common electrode, 5 is an alignment film, 6 is a pixel electrode, 7 is an alignment film, 8.9 is a polarizing plate, 10 is a sealing material, 11 is a liquid crystal, 12 is an interference filter It is.
Claims (3)
有するカラー液晶表示素子において、前記カラーフィル
タが無機系の多層膜からなる干渉フィルターで構成され
ていることを特徴とするカラー液晶表示素子。(1) A color liquid crystal display element having a multicolor color filter corresponding to a display pattern, characterized in that the color filter is constituted by an interference filter made of an inorganic multilayer film.
層膜が、金属酸化物、金属フッ化物、金属硫化物、金属
塩化物および金属窒化物から選ばれた材料からなるカラ
ー液晶表示素子。(2) The color liquid crystal display element according to claim 1, wherein the inorganic multilayer film is made of a material selected from metal oxides, metal fluorides, metal sulfides, metal chlorides, and metal nitrides. .
写形ディスプレイのライトバルブとして使用されるカラ
ー液晶表示素子。(3) A color liquid crystal display element according to claim 1 or 2, which is used as a light valve of a projection display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292432A JPS63146019A (en) | 1986-12-10 | 1986-12-10 | Color liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292432A JPS63146019A (en) | 1986-12-10 | 1986-12-10 | Color liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63146019A true JPS63146019A (en) | 1988-06-18 |
Family
ID=17781714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61292432A Pending JPS63146019A (en) | 1986-12-10 | 1986-12-10 | Color liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146019A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149881A (en) * | 1988-11-30 | 1990-06-08 | Hosiden Electron Co Ltd | Color liquid crystal display device |
| JPH02269315A (en) * | 1988-12-15 | 1990-11-02 | Hughes Aircraft Co | Projector using liquid crystal device with reflection type color filter |
| EP0412921A2 (en) * | 1989-08-11 | 1991-02-13 | International Business Machines Corporation | Thin film transistor liquid crystal display device with optical interference color filters |
| EP0478621A1 (en) * | 1989-06-17 | 1992-04-08 | GLICK, William F. | Color display system using thin film color control |
| DE4444557B4 (en) * | 1993-12-01 | 2005-03-24 | Matsushita Electric Industrial Co., Ltd., Kadoma | Display panel, projection display device with such a display panel and viewfinder with such a display panel |
-
1986
- 1986-12-10 JP JP61292432A patent/JPS63146019A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149881A (en) * | 1988-11-30 | 1990-06-08 | Hosiden Electron Co Ltd | Color liquid crystal display device |
| JPH02269315A (en) * | 1988-12-15 | 1990-11-02 | Hughes Aircraft Co | Projector using liquid crystal device with reflection type color filter |
| EP0478621A1 (en) * | 1989-06-17 | 1992-04-08 | GLICK, William F. | Color display system using thin film color control |
| EP0478621A4 (en) * | 1989-06-17 | 1993-02-03 | William F. Glick | Color display system using thin film color control |
| EP0412921A2 (en) * | 1989-08-11 | 1991-02-13 | International Business Machines Corporation | Thin film transistor liquid crystal display device with optical interference color filters |
| DE4444557B4 (en) * | 1993-12-01 | 2005-03-24 | Matsushita Electric Industrial Co., Ltd., Kadoma | Display panel, projection display device with such a display panel and viewfinder with such a display panel |
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