JPH0594878A - Multicolored el panel - Google Patents
Multicolored el panelInfo
- Publication number
- JPH0594878A JPH0594878A JP3253575A JP25357591A JPH0594878A JP H0594878 A JPH0594878 A JP H0594878A JP 3253575 A JP3253575 A JP 3253575A JP 25357591 A JP25357591 A JP 25357591A JP H0594878 A JPH0594878 A JP H0594878A
- Authority
- JP
- Japan
- Prior art keywords
- transparent resin
- color
- resin layer
- panel
- filter
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 239000010409 thin film Substances 0.000 claims abstract description 20
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 5
- 238000004528 spin coating Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はマルチカラーＥＬパネ
ルに関し、より詳しくは、薄膜ＥＬ素子とカラーフィル
タとを組み合わせて構成されるフィルタ方式のマルチカ
ラーＥＬパネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-color EL panel, and more particularly to a filter type multi-color EL panel constructed by combining a thin film EL element and a color filter.
【０００２】[0002]
【従来の技術】現在、実用化されている薄膜ＥＬパネル
は黄橙色のパネルだけであり、ディスプレイの表示情報
量を増大させる多色化が重要な課題となっている。薄膜
ＥＬパネルを多色化するためには大別して２つの方式が
試みられている。１つは発光色の異なる発光層をモザイ
ク状あるいはストライプ状に配置して、複数の発光色を
得る併置方式。もう１つは単一の発光層から出る光を複
数色のカラーフィルタ(有機物からなる)により分光し
て、複数の発光色を得るフィルタ方式である。2. Description of the Related Art Currently, only thin orange EL panels have been put into practical use, and multicoloring for increasing the amount of information displayed on a display has become an important issue. In order to make the thin film EL panel multicolored, two methods are roughly attempted. One is a side-by-side method in which light-emitting layers of different emission colors are arranged in a mosaic or stripe form to obtain a plurality of emission colors. The other is a filter system in which light emitted from a single light emitting layer is dispersed by color filters of a plurality of colors (made of an organic material) to obtain a plurality of emission colors.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記併
置方式は、発光層を形成する際に微細加工を必要とし、
プロセスが複雑になる。また、異なる発光層を用いるた
め輝度−電圧特性やエージング特性がばらつくという問
題がある。一方、上記フィルタ方式は、ＥＬ素子とカラ
ーフィルタとの間のギャップにより視角依存性を生ずる
ため、できるだけＥＬ素子とカラーフィルタとを近接さ
せなければならない。しかしながら、ＥＬ素子とカラー
フィルタを密着させると、ＥＬ素子にブレークダウンが
発生したとき、有機物であるフィルタも同時に変質また
は破壊するという問題がある。However, the above-mentioned juxtaposition method requires fine processing when forming the light emitting layer,
The process becomes complicated. Further, since different light emitting layers are used, there is a problem that the brightness-voltage characteristics and the aging characteristics vary. On the other hand, in the above-mentioned filter method, since the viewing angle dependency is caused by the gap between the EL element and the color filter, the EL element and the color filter must be as close as possible. However, if the EL element and the color filter are brought into close contact with each other, there is a problem that when a breakdown occurs in the EL element, the filter, which is an organic substance, is also altered or destroyed at the same time.
【０００４】そこで、この発明の目的は、フィルタ方式
のマルチカラーＥＬパネルにおいて、視覚依存性を抑制
でき、しかもＥＬ素子のブレークダウン発生時にフィル
タが変質,破壊するのを防止できるマルチカラーＥＬパ
ネルを提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a multi-color EL panel of a filter type which can suppress visual dependence and can prevent the filter from being altered or destroyed when a breakdown occurs in the EL element. To provide.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明のマルチカラーＥＬパネルは、単一色の光
を発生する薄膜ＥＬ素子と、複数色のカラーフィルタと
を組み合わせて構成されるマルチカラーＥＬパネルにお
いて、上記薄膜ＥＬ素子とカラーフィルタとの間に透明
樹脂層を設けたことを特徴としている。In order to achieve the above object, a multi-color EL panel of the present invention is constructed by combining a thin-film EL element which emits light of a single color and color filters of a plurality of colors. The multicolor EL panel is characterized in that a transparent resin layer is provided between the thin film EL element and the color filter.
【０００６】また、上記透明樹脂層の厚さは上記薄膜Ｅ
Ｌ素子の画素の間隔以下であるのが望ましい。The thickness of the transparent resin layer is the thin film E.
It is desirable that the distance is less than or equal to the pixel interval of the L element.
【０００７】また、上記透明樹脂層の厚さは０.１μｍ
乃至５００μｍであるのが望ましい。The thickness of the transparent resin layer is 0.1 μm.
It is desirable that the thickness is from 500 μm to 500 μm.
【０００８】[0008]
【作用】薄膜ＥＬ素子とカラーフィルタとの間に透明樹
脂層を設けたことにより、ＥＬ素子がブレークダウンし
た場合に上記透明樹脂層が緩衝層の役割を果たす。した
がって、ＥＬ素子のブレークダウンの影響がカラーフィ
ルタにまで及ばなくなり、表示品質が高く保持される。By providing the transparent resin layer between the thin film EL element and the color filter, the transparent resin layer acts as a buffer layer when the EL element breaks down. Therefore, the influence of the breakdown of the EL element does not reach the color filter, and the display quality is kept high.
【０００９】また、上記透明樹脂層の厚さが上記薄膜Ｅ
Ｌ素子の画素の間隔以下である場合、上記ＥＬ素子とカ
ラーフィルタとを十分に近接させることができ、ＥＬ素
子とカラーフィルタとの間のギャップによる視覚依存性
が抑制される。The thickness of the transparent resin layer is equal to that of the thin film E.
When the distance between the pixels of the L element is less than or equal to the distance between the EL element and the color filter, the EL element and the color filter can be sufficiently close to each other, and the visual dependency due to the gap between the EL element and the color filter is suppressed.
【００１０】また、上記透明樹脂層の厚さが０.１μm〜
５００μmである場合、上記透明樹脂層はスピンナーを
用いた回転塗布法などにより容易に形成される。The thickness of the transparent resin layer is 0.1 μm or more.
When the thickness is 500 μm, the transparent resin layer is easily formed by a spin coating method using a spinner.
【００１１】[0011]
【実施例】以下、この発明のマルチカラーＥＬパネルを
図示の実施例により詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The multicolor EL panel of the present invention will be described in detail below with reference to the embodiments shown in the drawings.
【００１２】図１に示すように、このマルチカラーＥＬ
パネルは、ガラス基板１上に、単一色を発生する薄膜Ｅ
Ｌ素子１００を備えている。この薄膜ＥＬ素子１００
は、Ｔa、Ｍo、Ｗなどの下部電極２をストライプ状に形
成し、その上にＳiＯ2、Ｓi3Ｎ4からなる下部絶縁層３
と、ＺnＳ：Ｍnからなる発光層４と、Ｓi3Ｎ4、Ａl2Ｏ3
からなる上部絶縁層５とを順次積層し、最後にＩＴＯか
らなるストライプ状の透明電極６を上記下部電極２と直
交する方向に形成して構成されている。上記下部電極２
と上部電極６との各交差箇所が画素となっている。この
薄膜ＥＬ素子１００上に、透明樹脂層７が設けられてい
る。この透明樹脂層７は、付加反応タイプのシリコン樹
脂を材料とし、スピンナーでＥＬ素子１００の画素の間
隔以下(０.１〜５００μｍ)の厚さに塗布した後、空気
中で加熱硬化して形成する。これとは別に、シールガラ
ス９に赤と緑のカラーフィルタ８をモザイク状に形成し
ておき、このシールガラス９を透明樹脂層７を介してＥ
Ｌ素子１００と張り合わせる。これにより、マルチカラ
ーＥＬパネルを構成する。As shown in FIG. 1, this multi-color EL
The panel is a thin film E that produces a single color on the glass substrate 1.
The L element 100 is provided. This thin film EL device 100
Forms a lower electrode 2 of Ta, Mo, W or the like in a stripe shape, on which a lower insulating layer 3 made of SiO 2 , Si 3 N 4 is formed.
And a light emitting layer 4 made of ZnS: Mn, Si 3 N 4 and Al 2 O 3
And an upper insulating layer 5 made of ITO are sequentially laminated, and finally a transparent electrode 6 having a stripe shape made of ITO is formed in a direction orthogonal to the lower electrode 2. The lower electrode 2
Each intersection of the upper electrode 6 and the upper electrode 6 is a pixel. The transparent resin layer 7 is provided on the thin film EL element 100. This transparent resin layer 7 is formed by applying an addition reaction type silicone resin as a material, applying it with a spinner to a thickness of not more than the pixel interval of the EL element 100 (0.1 to 500 μm), and then heat curing in air. To do. Separately from this, the red and green color filters 8 are formed on the seal glass 9 in a mosaic shape, and the seal glass 9 is removed through the transparent resin layer 7
Laminate with L element 100. This constitutes a multi-color EL panel.
【００１３】このようにして作成したマルチカラーＥＬ
パネルは、電圧を印加し発光させるとＺnＳ:Ｍn発光層
４から出る黄橙色の発光がカラーフィルタ８を通ること
により赤と緑に分離され多色発光が可能となる。しか
も、ＥＬ素子１００とカラーフィルタ８との間に透明樹
脂層７を介在させているので、ＥＬ素子１００がブレー
クダウンを起こしても、この透明樹脂層７が緩衝層とし
て働く。したがって、カラーフィルタ８の黒化や脱色と
いった変質,破壊が起こず、表示品質を高く保持するこ
とができる。また、上記透明樹脂層７の厚さをＥＬ素子
１００の画素の間隔以下にしているので、ＥＬ素子１０
０とカラーフィルタ８とを十分に近接させることがで
き、したがってＥＬ素子１００とカラーフィルタ８との
間のギャップによる視覚依存性を抑制できる。Multi-color EL produced in this way
When a voltage is applied to the panel to cause it to emit light, yellow-orange light emitted from the ZnS: Mn light-emitting layer 4 is separated into red and green by passing through the color filter 8 to enable multicolor light emission. Moreover, since the transparent resin layer 7 is interposed between the EL element 100 and the color filter 8, even if the EL element 100 breaks down, the transparent resin layer 7 functions as a buffer layer. Therefore, the deterioration and destruction of the color filter 8 such as blackening and decoloring do not occur, and the display quality can be kept high. Further, since the thickness of the transparent resin layer 7 is set to be equal to or less than the distance between the pixels of the EL element 100, the EL element 10
0 and the color filter 8 can be sufficiently close to each other, and thus visual dependency due to the gap between the EL element 100 and the color filter 8 can be suppressed.
【００１４】[0014]
【発明の効果】以上より明らかなように、この発明は、
単一色の光を発生する薄膜ＥＬ素子と、複数色のカラー
フィルタとを組み合わせて構成されるマルチカラーＥＬ
パネルにおいて、上記薄膜ＥＬ素子とカラーフィルタと
の間に緩衝層として働く透明樹脂層を設けているので、
ＥＬ素子のブレークダウンが起こったときにカラーフィ
ルタが変質したり、破壊したりするのを防止できる。し
たがって、表示品質を高く保持することができる。As is apparent from the above, the present invention is
Multi-color EL configured by combining a thin-film EL element that emits light of a single color and color filters of multiple colors
In the panel, since the transparent resin layer serving as a buffer layer is provided between the thin film EL element and the color filter,
It is possible to prevent the color filter from being deteriorated or destroyed when the EL element breaks down. Therefore, the display quality can be kept high.
【００１５】また、上記透明樹脂層の厚さが上記薄膜Ｅ
Ｌ素子の画素の間隔以下である場合、上記ＥＬ素子とカ
ラーフィルタとを十分に近接させることができ、ＥＬ素
子とカラーフィルタとの間のギャップによる視覚依存性
を抑制できる。The thickness of the transparent resin layer is equal to that of the thin film E.
When the distance between the pixels of the L element is less than or equal to the distance between the EL element and the color filter, the EL element and the color filter can be sufficiently close to each other, and visual dependence due to a gap between the EL element and the color filter can be suppressed.
【００１６】また、上記透明樹脂層の厚さが０.１μm〜
５００μmである場合、上記透明樹脂層をスピンナーを
用いた回転塗布法などにより容易に形成することができ
る。The thickness of the transparent resin layer is 0.1 μm or more.
When the thickness is 500 μm, the transparent resin layer can be easily formed by a spin coating method using a spinner.
【図１】 この発明の一実施例のマルチカラーＥＬパネ
ルの断面構造を示す図である。FIG. 1 is a diagram showing a cross-sectional structure of a multi-color EL panel according to an embodiment of the present invention.
１ ガラス基板 ２ 下部電極 ３ 下部絶縁層 ４ 発光層 ５ 上部絶縁層 ６ 透明電極 ７ 透明樹脂 ８ カラーフィルタ ９ シールガラス １００ 薄膜ＥＬ素子 1 glass substrate 2 lower electrode 3 lower insulating layer 4 light emitting layer 5 upper insulating layer 6 transparent electrode 7 transparent resin 8 color filter 9 seal glass 100 thin film EL element
Claims (3)
複数色のカラーフィルタとを組み合わせて構成されるマ
ルチカラーＥＬパネルにおいて、 上記薄膜ＥＬ素子とカラーフィルタとの間に透明樹脂層
を設けたことを特徴とするマルチカラーＥＬパネル。1. A thin-film EL device that emits light of a single color,
A multi-color EL panel configured by combining color filters of a plurality of colors, wherein a transparent resin layer is provided between the thin film EL element and the color filter.
子の画素の間隔以下であることを特徴とする請求項１に
記載のマルチカラーＥＬパネル。2. The multi-color EL panel according to claim 1, wherein the thickness of the transparent resin layer is equal to or less than the distance between the pixels of the thin film EL element.
５００μｍであることを特徴とする請求項１に記載のマ
ルチカラーＥＬパネル。3. The multi-color EL panel according to claim 1, wherein the transparent resin layer has a thickness of 0.1 μm to 500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3253575A JP2766095B2 (en) | 1991-10-01 | 1991-10-01 | Multi-color EL panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3253575A JP2766095B2 (en) | 1991-10-01 | 1991-10-01 | Multi-color EL panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0594878A true JPH0594878A (en) | 1993-04-16 |
| JP2766095B2 JP2766095B2 (en) | 1998-06-18 |
Family
ID=17253286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3253575A Expired - Lifetime JP2766095B2 (en) | 1991-10-01 | 1991-10-01 | Multi-color EL panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2766095B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100357119B1 (en) * | 2000-07-18 | 2002-10-18 | 엘지전자 주식회사 | organic electroluminescence micro display device and method for fabricating the same |
| US6664563B2 (en) | 2001-03-30 | 2003-12-16 | Sanyo Electric Co., Ltd. | Electroluminescence device with shock buffer function and sealing member with shock buffer function for the same |
| US7119409B2 (en) | 2003-06-13 | 2006-10-10 | Fuji Electric Holdings Co., Ltd. | Organic el display |
| JP2007141561A (en) * | 2005-11-16 | 2007-06-07 | Seiko Epson Corp | Electroluminescence device and electronic equipment |
| JP2008089634A (en) * | 2006-09-29 | 2008-04-17 | Seiko Epson Corp | Electro-optical device and electronic equipment |
| US7728516B2 (en) | 2003-06-13 | 2010-06-01 | Fuji Electric Holdings Co., Ltd. | Organic EL display |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121296A (en) * | 1986-11-11 | 1988-05-25 | 株式会社日本自動車部品総合研究所 | Thin film light emitting device |
| JP3092398U (en) * | 2002-08-28 | 2003-03-07 | 株式会社テーラーヨシムラ | Upper garment |
-
1991
- 1991-10-01 JP JP3253575A patent/JP2766095B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121296A (en) * | 1986-11-11 | 1988-05-25 | 株式会社日本自動車部品総合研究所 | Thin film light emitting device |
| JP3092398U (en) * | 2002-08-28 | 2003-03-07 | 株式会社テーラーヨシムラ | Upper garment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100357119B1 (en) * | 2000-07-18 | 2002-10-18 | 엘지전자 주식회사 | organic electroluminescence micro display device and method for fabricating the same |
| US6664563B2 (en) | 2001-03-30 | 2003-12-16 | Sanyo Electric Co., Ltd. | Electroluminescence device with shock buffer function and sealing member with shock buffer function for the same |
| US7119409B2 (en) | 2003-06-13 | 2006-10-10 | Fuji Electric Holdings Co., Ltd. | Organic el display |
| US7728516B2 (en) | 2003-06-13 | 2010-06-01 | Fuji Electric Holdings Co., Ltd. | Organic EL display |
| JP2007141561A (en) * | 2005-11-16 | 2007-06-07 | Seiko Epson Corp | Electroluminescence device and electronic equipment |
| JP2008089634A (en) * | 2006-09-29 | 2008-04-17 | Seiko Epson Corp | Electro-optical device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2766095B2 (en) | 1998-06-18 |
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