JPH0632310B2 - Display device - Google Patents
Display deviceInfo
- Publication number
- JPH0632310B2 JPH0632310B2 JP60269967A JP26996785A JPH0632310B2 JP H0632310 B2 JPH0632310 B2 JP H0632310B2 JP 60269967 A JP60269967 A JP 60269967A JP 26996785 A JP26996785 A JP 26996785A JP H0632310 B2 JPH0632310 B2 JP H0632310B2
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- transparent electrode
- display device
- film
- display
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000010407 anodic oxide Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 230000005684 electric field Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000007743 anodising Methods 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 150000001217 Terbium Chemical class 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、アルミニウム陽極酸化皮膜に希土類元素又は
遷移金属元素等の励起発光体を封入させて電界励起発光
を行わせるようにした表示装置に関し、更に詳細には良
好なコントラストで電界励起発光動作を行なせるように
した表示装置に関する。TECHNICAL FIELD The present invention relates to a display device in which an aluminum anodic oxide film is filled with an excited luminescent material such as a rare earth element or a transition metal element to perform electric field excitation light emission. More specifically, it relates to a display device capable of performing an electric field excitation light emission operation with a good contrast.
「従来の技術」 高純度のアルミニウム板又は箔に陽極酸化処理を施して
得られる多孔質皮膜に例えばユーロビウム又はテルビウ
ムのような希土類元素等の蛍光体を付活封入させるよう
にした発光体素子は、本願の出願人が先に特開昭６０−
182689号公報及び特開昭６０−205989号公報で提案し
た。陽極酸化処理で形成された多孔質皮膜に対する蛍光
体の付活封入手段としては、ユーロビウム塩溶液又はテ
ルビウム塩溶液等の蛍光体塩溶液に上記多孔質皮膜を浸
漬した後、再陽極酸化処理を施す手法を採用できる。こ
のような手法に於いては、多孔質皮膜に封入された蛍光
体の流出等を防止するために、蛍光体の封入された孔を
封孔処理することや、多孔質皮膜の孔中に対する蛍光体
封入量及び安定製を高めるために一次陽極酸化処理工程
後に、それより低い電圧による二次陽極酸化処理を施し
て各孔中の底部に更に微細な封入孔を形成することも可
能である。"Prior Art" A light emitting element in which a porous film obtained by subjecting a high-purity aluminum plate or foil to anodizing is activated and encapsulated with a phosphor such as a rare earth element such as eurobium or terbium The applicant of the present application first disclosed in JP-A-60-
182689 and JP-A-60-205989. As a means for energizing and encapsulating the phosphor in the porous film formed by anodization, the porous film is immersed in a phosphor salt solution such as a eurobium salt solution or a terbium salt solution, and then reanodized. The method can be adopted. In such a method, in order to prevent the outflow of the phosphor encapsulated in the porous film, the pores in which the phosphor is encapsulated are sealed, or the fluorescent light in the pores of the porous film is reduced. It is also possible to form a finer enclosed hole at the bottom of each hole by performing a secondary anodizing treatment at a lower voltage after the primary anodizing treatment step in order to increase the amount of enclosed body and stable production.
斯かる発光体素子の発光励起手段としては、紫外線又は
電子線の他、電界励起手段等を採用できるものであり、
電界励起手段の場合には、第４図の如く、例えば高純度
アルミニウム板２に既述の如く蛍光体を封入させた多孔
質発光皮膜３を有する発光体素子１の該皮膜３上に透明
電極７を形成した所謂ネサガラス４を配置した上、アル
ミニウム板２と透明電極７間に交流電圧Ｅを印加するこ
とにより、付活封入した蛍光体の種類に応じた例えばオ
レンジ色、赤色又は黄緑色等の発光動作を行わせること
ができる。As the light emission excitation means of such a light emitting element, it is possible to employ electric field excitation means or the like in addition to ultraviolet rays or electron beams,
In the case of the electric field excitation means, as shown in FIG. 4, for example, a transparent electrode is provided on the film 3 of the light emitting element 1 having the porous light emitting film 3 in which the phosphor is enclosed in the high purity aluminum plate 2 as described above. 7 is formed, so-called Nesa glass 4 is arranged, and an AC voltage E is applied between the aluminum plate 2 and the transparent electrode 7, so that, for example, orange, red, or yellow-green depending on the type of the encapsulating phosphor. The light emitting operation can be performed.
「発明が解決しようとする問題点」 このような発光体素子を用いて表示装置を構成する場
合、上記の如く透明電極７を多孔質発光皮膜３上に単に
密着させて形成すると、透明電極７と発光皮膜３との間
には異状放電を生じて該皮膜３の絶縁破壊を起こす為、
発光素子１は短時間に破壊されて安定した発光動作を期
待することが極めて困難である他、発光輝度も低いとい
う難点がある。また、このような構造では発光動作時の
コントラストを明確にすることも困難である。"Problems to be Solved by the Invention" When a display device is constructed using such a light emitting element, if the transparent electrode 7 is formed by simply adhering it on the porous light emitting film 3 as described above, the transparent electrode 7 is formed. Since an abnormal discharge is caused between the light-emitting film 3 and the light-emitting film 3 to cause dielectric breakdown of the film 3,
The light emitting device 1 is extremely difficult to be destroyed in a short time to expect a stable light emitting operation, and also has a drawback that the emission brightness is low. Further, with such a structure, it is difficult to clarify the contrast during the light emitting operation.
「問題点を解決するための手段」 本発明は、上記事情を考慮してなされたものであり、そ
の為に本発明では、上記発光体素子と透明電極との間に
文字、記号又は図形などの任意の表示用ギヤツプを形成
させるスペーサを設け、このスペーサを発光体素子の発
光色と補色関係となる着色スペーサに構成して発光時の
コントラストを向上させ得るようにした表示装置を提供
するものである。また、上記着色スペーサに形成した表
示用ギヤツプの形状に対応させてネサガラス側の透明電
極をパターン化することによつて発光時のコントラスト
を更に高めることが可能である。"Means for Solving Problems" The present invention has been made in consideration of the above circumstances, and therefore, in the present invention, characters, symbols or figures are provided between the light emitting element and the transparent electrode. To provide a display device in which a spacer for forming an arbitrary display gear is provided, and the spacer is configured as a colored spacer having a complementary color relationship with the light emission color of the light emitting element to improve the contrast at the time of light emission. Is. Further, the contrast at the time of light emission can be further increased by patterning the transparent electrode on the Nesa glass side corresponding to the shape of the display gap formed on the colored spacer.
「実施例」 図面は本発明の一実施例による表示装置の概念的な要部
断面構成図であつて、第４図と同一符号はそれらと同一
構成要素を示し、５はネサガラス４に形成すべき透明電
極であつて、これは絶縁性のスペーサ６に設けた表示用
ギヤツプの形状に対応させて後述の如く構成される。ス
ペーサ６は別体の絶縁性フイルムを用いて第２図のよう
に例えばニユーメリツク表示を行えるような分割された
表示用ギヤツプＳ１〜Ｓ７を該フイルムに適宜穿設する
か、若くは、多孔質発光皮膜３上にスパツタ法で酸化ア
ルミニウム又は酸化チタン等の絶縁性金属酸化膜を所要
の厚さに直接被着させて上記ギヤツプＳ１〜Ｓ７のパタ
ーンを形成することもできる。このような金属酸化膜に
よるスペーサは、これに代えてスクリーン印刷又はフオ
トリソグラフイ法等で形成できる絶縁性高分子膜を用い
ることも可能である。斯かるスペーサ６の厚さは数μｍ
〜数十μｍのものを使用して、各表示用ギヤツプＳ１〜
Ｓ７で形成される多孔質発光皮膜３と透明電極５との間
隙を例えば２〜１９μｍ、好ましくは５〜１８μｍ程度
に設定するものである。また、このスペーサ６は多孔質
発光皮膜３の電界励起発光色と補色関係となる色に第２
図の斜線で示す領域を着色して発光動作時のコントラス
トを強調できるように構成される。更に、ネサガラス４
側に設けるべき透明電極５に関しても第３図の如く上記
表示用ギヤツプＳ１〜Ｓ７の形状に対応させてパターン
電極Ｐ１〜Ｐ７に構成することによつて発光表示のコン
トラストを更に高めることができる。[Embodiment] The drawing is a conceptual cross-sectional configuration diagram of a display device according to an embodiment of the present invention, in which the same reference numerals as those in FIG. 4 denote the same constituent elements, and 5 is formed on the Nesa glass 4. This transparent electrode should be formed as described later in correspondence with the shape of the display gear provided on the insulating spacer 6. As the spacer 6, a separate insulating film is used to appropriately divide the display gears S1 to S7 as shown in FIG. 2 so that, for example, a new display can be performed. It is also possible to directly form an insulating metal oxide film such as aluminum oxide or titanium oxide on the film 3 by a sputtering method to a required thickness to form the patterns of the gears S1 to S7. Instead of such a spacer made of a metal oxide film, an insulating polymer film that can be formed by screen printing, a photolithography method, or the like can be used. The thickness of the spacer 6 is several μm.
~ Each of the display gears S1 to
The gap between the porous light emitting film 3 formed in S7 and the transparent electrode 5 is set to, for example, 2 to 19 μm, preferably 5 to 18 μm. In addition, the spacer 6 has a second color that is complementary to the electric field excitation light emission color of the porous light emitting film 3.
The shaded area in the figure is colored so that the contrast during light emitting operation can be emphasized. Furthermore, Nesa glass 4
With respect to the transparent electrode 5 to be provided on the side, as shown in FIG. 3, the pattern electrodes P1 to P7 are formed so as to correspond to the shapes of the display gears S1 to S7.
このような表示装置に於いては、各透明パターン電極Ｐ
１〜Ｐ７とアルミニウム板２の間に２８０Ｖ〜３８０Ｖ
程度の交流電圧を印加することにより表示用ギヤツプＳ
１〜Ｓ７を介してコントラストの良好な例えば図示の如
きニユーメリツク電界励起発光表示を行わせることがで
きる。また、その際、従来の如き異状放電の発生を好適
に阻止しながら、均一で高輝度の発光動作を安定に維持
させることができる。In such a display device, each transparent pattern electrode P
1 ~ P7 and aluminum plate 2 280V ~ 380V
By applying an alternating voltage of about
Through the steps 1 to S7, it is possible to perform, for example, a new electric field excitation light emission display having a good contrast. Further, at that time, it is possible to stably maintain uniform and high-luminance light emission while appropriately preventing occurrence of abnormal discharge as in the conventional case.
多孔質発光皮膜３に封入すべき発光体としては、既述の
希土類元素等に制約されず、Ｍｎ，Ｃｏ，Ｚｎ又はＣｅ
などの遷移元素金属からなる一種又は二種若しくはそれ
らの合金を適宜使用することができ、その封入手段とし
ては前記の如き電気化学的方法の他、多孔質皮膜に直接
的にイオン注入法で上記のような発光体を注入する手法
も好適である。斯かる多孔質発光皮膜３は、母材として
のアルミニウム板２から逆電解法で剥離可能である。The light-emitting body to be enclosed in the porous light-emitting film 3 is not limited to the above-mentioned rare earth element or the like, and may be Mn, Co, Zn or Ce.
One or two kinds of transition element metals such as the above or alloys thereof can be used as appropriate, and the encapsulation means is not limited to the electrochemical method as described above, but can be directly applied to the porous film by an ion implantation method. A method of injecting a light emitting body such as is also suitable. Such a porous light emitting film 3 can be peeled off from the aluminum plate 2 as a base material by a reverse electrolysis method.
「発明の効果」 本発明の表示装置によれば、多孔質発光皮膜を有する発
光体素子と透明電極との間に任意の表示用ギヤツプを形
成させる為のスペーサを多孔質発光皮膜の発光色と補色
関係となるように着色するように構成したので、発光表
示動作のコントラストを向上させることができ、また、
このようなコントラストの向上化は着色スペーサの表示
用ギヤツプ形状に対応させて透明電極をパターン化する
ことにより更に好適に高め得る。そして、斯かる電界励
起発光表示動作に於いては、従来のような異状放電の発
生を好適に阻止しながら、均一で高輝度の発光動作を安
定に維持させることが可能である。[Advantages of the Invention] According to the display device of the present invention, a spacer for forming an arbitrary display gear between the light emitting element having the porous light emitting film and the transparent electrode is provided with a light emitting color of the porous light emitting film. Since it is configured to be colored so as to have a complementary color relationship, it is possible to improve the contrast of the light emitting display operation.
Such an improvement in contrast can be more preferably enhanced by patterning the transparent electrode corresponding to the shape of the display spacer gap of the colored spacer. Further, in such an electric field excitation light emitting display operation, it is possible to stably maintain uniform and high-luminance light emitting operation while suitably preventing the occurrence of abnormal discharge as in the conventional case.
第１図は、本発明の一実施例による表示装置の概念的な
要部断面構成図、 第２図は、第１図の表示装置に用いた着色スペーサの構
成例を示す図、 第３図は、同じくネサガラス側の透明電極をパターン化
した例を示す説明図、そして、 第４図は、従来構造の表示装置を概念的に示す部分断面
構成図である。 １：発光体素子 ２：アルミニウム板 ３：多孔質発光皮膜 ４：ネサガラス ５：透明電極 ６：着色スペーサ1 is a conceptual cross-sectional configuration diagram of a main part of a display device according to an embodiment of the present invention, FIG. 2 is a diagram showing a configuration example of a colored spacer used in the display device of FIG. 1, and FIG. FIG. 4 is an explanatory view showing an example in which the transparent electrode on the Nesa glass side is also patterned, and FIG. 4 is a partial cross-sectional configuration diagram conceptually showing a display device having a conventional structure. 1: Luminescent element 2: Aluminum plate 3: Porous light emitting film 4: Nesa glass 5: Transparent electrode 6: Colored spacer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−77283（ＪＰ，Ａ) 特開 昭62−117296（ＪＰ，Ａ) 特開 昭60−205989（ＪＰ，Ａ) 特開 昭60−182689（ＪＰ，Ａ) 実開 昭56−120576（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-50-77283 (JP, A) JP-A-62-117296 (JP, A) JP-A-60-205989 (JP, A) JP-A-60- 182689 (JP, A) Actual development Sho 56-120576 (JP, U)
Claims (2)
封入させた発光体素子上に透明電極を設けるようにした
表示装置に於いて、上記発光体素子と透明電極との間に
該発光体素子の発光色と補色となる着色スペーサを設
け、この着色スペーサに対して上記発光体素子と透明電
極との間に所要の間隙を形成させる為の表示用ギャップ
を形成するように構成したことを特徴とする表示装置。1. A display device in which a transparent electrode is provided on a light-emitting element in which an excitation light-emitting element is enclosed in an aluminum anodic oxide film, wherein the light-emitting element is between the light-emitting element and the transparent electrode. Is provided with a colored spacer that is a complementary color to the luminescent color of, and a display gap for forming a required gap between the luminescent element and the transparent electrode is formed on the colored spacer. And display device.
記透明電極をパターン化するように構成した特許請求の
範囲(1) 項の表示装置。2. The display device according to claim 1, wherein the transparent electrode is patterned so as to correspond to the shape of the display gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60269967A JPH0632310B2 (en) | 1985-11-29 | 1985-11-29 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60269967A JPH0632310B2 (en) | 1985-11-29 | 1985-11-29 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62128489A JPS62128489A (en) | 1987-06-10 |
| JPH0632310B2 true JPH0632310B2 (en) | 1994-04-27 |
Family
ID=17479716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60269967A Expired - Lifetime JPH0632310B2 (en) | 1985-11-29 | 1985-11-29 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632310B2 (en) |
-
1985
- 1985-11-29 JP JP60269967A patent/JPH0632310B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62128489A (en) | 1987-06-10 |
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