JP2007322780A - Display device - Google Patents

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Publication number
JP2007322780A
JP2007322780A JP2006153267A JP2006153267A JP2007322780A JP 2007322780 A JP2007322780 A JP 2007322780A JP 2006153267 A JP2006153267 A JP 2006153267A JP 2006153267 A JP2006153267 A JP 2006153267A JP 2007322780 A JP2007322780 A JP 2007322780A
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light
layer
design
emitting device
light emitting
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Tsuneo Suzuki
恒雄 鈴木
Noriyuki Betsushiba
範之 別芝
Wataru Yokoyama
亘 横山
Yasuchika Mita
泰哉 三田
Yoichiro Higuchi
陽一郎 樋口
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Toyota Industries Corp
Toyota Motor Corp
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Toyota Industries Corp
Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of improving the design property of a displayed body with simple constitution. <P>SOLUTION: Light beams L1 and L2 generated in a light emission area 7x are emitted from the front face 1a of a surface light emitting device 1, and then are made to pass through a transparent member 2 and are emitted directly to the outside from an opening part 3c of a design constitution layer 3. Light beams L3 and L4 generated in the other light emission area 7y are made to pass through the transparent member 2 to be made incident on the light-reflective rear surface 3b of the design constitution layer 3, reflected here and made to pass through the transparent member 2 again, and then made to pass through the transparent substrate 5, the transparent electrode layer 6, and the organic layer 7 of the surface light emitting device 1 in order. Further, the light beams are reflected by a reflective electrode layer 8 and made to pass through the organic layer 7, transparent electrode 6, and transparent substrate 5 in order, and emitted from the front face 1a of the surface light emitting device 1 to be emitted from the front face 1a of the surface light emitting device 1, so that they are repeatedly reflected between the rear surface 3b of the design constitution layer 3 and the reflective electrode layer of the surface light emitting device 1 and then emitted to the outside from the opening part 3c of the design constitution layer 3. Consequently, partial light and darkness are formed by a relatively bright light emission pattern S2 and a relatively dark light emission pattern S3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、表示装置に係り、特に文字、図形等の被表示物を優れた意匠性で発光表示する表示装置に関する。   The present invention relates to a display device, and more particularly to a display device that displays a display object such as characters and figures with excellent design.

特許文献１には、エレクトロルミネッセンス素子層の前面側に光半透過性パターンを有する意匠層を配置して、非発光時には意匠層により装飾性のある意匠を構成し、発光時にはエレクトロルミネッセンス素子層と意匠層の双方により非発光時とは異なる意匠を構成するようにした装置が開示されている。   In Patent Document 1, a design layer having a translucent pattern is disposed on the front side of the electroluminescence element layer, and a decorative design is configured by the design layer when not emitting light, and the electroluminescence element layer when emitting light An apparatus is disclosed in which a design different from that when no light is emitted is formed by both of the design layers.

特開２００３−１５５６４号公報JP 2003-15564 A

しかしながら、特許文献１の装置では、発光時にエレクトロルミネッセンス素子層から発せられた光が意匠層の透過領域を通って外部に出射されるのみであるので、出射される光が一様な明るさを有し、意匠性に乏しいという問題がある。意匠層の光半透過性パターンに光透過率の分布を形成してパターン内における光の強度を変化させることもできるが、意匠層の構成が複雑となったり、細かなマスキングが必要になる等の問題を生じてしまう。   However, in the apparatus of Patent Document 1, since the light emitted from the electroluminescence element layer at the time of light emission is only emitted outside through the transmission region of the design layer, the emitted light has uniform brightness. It has a problem that it has a poor design. Although it is possible to change the light intensity in the pattern by forming a light transmittance distribution in the light semi-transmissive pattern of the design layer, the structure of the design layer becomes complicated and fine masking is required. Cause problems.

この発明は、このような従来の問題点を解消するためになされたもので、簡単な構成で被表示物の意匠性を向上させることができる表示装置を提供することを目的とする。   The present invention has been made in order to solve such a conventional problem, and an object thereof is to provide a display device capable of improving the design of a display object with a simple configuration.

この発明に係る表示装置は、前面から光を出射する鏡面型の面発光装置と、面発光装置の前面側に配置された透明部材と、透明部材の前面側に配置されると共に表示しようとする意匠の形状に対応してパターニングされた透光性の開口部を備え且つ後面が光反射性を有する遮光性の意匠構成層とを備えたものである。なお、面発光装置と透明部材とは離間されて配置されていてもよい。
面発光装置の一部の発光領域から発せられた光は透明部材（透明部材と透明基板との間に空間がある場合は、その空間と透明部材）を透過してパターニングされた意匠構成層の開口部から直接外部へ出射され、他の発光領域から発せられた光は、意匠構成層の光反射性の後面と面発光装置の鏡面との間で反射を繰り返した後に意匠構成層の開口部から外部へ出射される。これにより、発光パターンに部分的な光の強弱を生じる。 A display device according to the present invention attempts to display a mirror-type surface light-emitting device that emits light from the front surface, a transparent member disposed on the front surface side of the surface light-emitting device, and a front surface side of the transparent member. A light-shielding design constituent layer having a light-transmitting opening patterned according to the shape of the design and having a light-reflecting rear surface is provided. Note that the surface light emitting device and the transparent member may be spaced apart.
Light emitted from a part of the light emitting region of the surface light emitting device is transmitted through the transparent member (if there is a space between the transparent member and the transparent substrate, the space and the transparent member). The light emitted directly from the opening to the outside and emitted from another light emitting region is repeatedly reflected between the light reflective rear surface of the design constituent layer and the mirror surface of the surface light emitting device, and then the opening of the design constituent layer. To the outside. As a result, partial light intensity is generated in the light emission pattern.

なお、意匠構成層が、遮光層と、所望の模様パターンが描かれた模様層とを有し、これら遮光層及び模様層のいずれか一方が光反射性を有するものでもよい。また、意匠構成層が、着色層を有していてもよい。
面発光装置は、反射電極層と、透明電極層と、これら反射電極層及び透明電極層の間に介在する発光層とを含むエレクトロルミネッセンス装置から構成することができる。
なお、「表示しようとする意匠」は、文字、図形、記号、模様、及びこれらのうちの２以上の組み合わせを含むものである。
また、「面発光装置」は、平面形状でもよいし、曲面形状であってもよい。また、平面形状と曲面形状を組み合わせて意匠に合わせた形状を有していてもよい。 The design constituting layer may include a light shielding layer and a pattern layer on which a desired pattern is drawn, and either the light shielding layer or the pattern layer may have light reflectivity. Moreover, the design constituent layer may have a colored layer.
The surface light-emitting device can be composed of an electroluminescence device including a reflective electrode layer, a transparent electrode layer, and a light-emitting layer interposed between the reflective electrode layer and the transparent electrode layer.
The “design to be displayed” includes characters, figures, symbols, patterns, and combinations of two or more thereof.
Further, the “surface light-emitting device” may have a planar shape or a curved surface shape. Moreover, you may have the shape match | combined with the design combining the planar shape and the curved surface shape.

この発明によれば、簡単な構成で被表示物の意匠性を向上させることができる。   According to the present invention, the design of the display object can be improved with a simple configuration.

以下、この発明の実施の形態を添付図面に基づいて説明する。
実施の形態１
図１及び２に実施の形態１に係る表示装置の断面を示す。表示装置は、有機エレクトロルミネッセンス装置（以下、「有機ＥＬ装置」という）からなる鏡面型の面発光装置１を有し、この面発光装置１の出射面である前面１ａ側に平板状の透明部材２が配置され、透明部材２の前面２ａ上に意匠構成層３が配置されている。さらに、意匠構成層３の前面３ａ上に透明な保護板４が配置されている。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1
1 and 2 show a cross section of the display device according to the first embodiment. The display device has a mirror-type surface light-emitting device 1 made of an organic electroluminescence device (hereinafter referred to as “organic EL device”), and a flat transparent member on the front surface 1 a side which is an output surface of the surface light-emitting device 1. 2 is arranged, and the design constituting layer 3 is arranged on the front surface 2 a of the transparent member 2. Further, a transparent protective plate 4 is disposed on the front surface 3 a of the design constituting layer 3.

面発光装置１は、透明基板５の表面上に透明電極層６、発光層を含む有機層７、反射電極層８を積層して形成された有機エレクトロルミネッセンス素子９（以下、「有機ＥＬ素子９」という）を有し、有機ＥＬ素子９の全体を覆うように保護層１０が形成されている。透明基板５の裏面がこの面発光装置１の前面１ａとして透明部材２に対向している。
ここで、透明基板５は、可視光に対して透過性を有する材料から形成されればよく、ガラス、樹脂等を用いることができる。透明電極層６は、電極としての機能を有し且つ少なくとも可視光に対して透過性を有していればよく、例えばＩＴＯがその材料として採用される。 The surface light emitting device 1 includes an organic electroluminescent element 9 (hereinafter referred to as “organic EL element 9”) formed by laminating a transparent electrode layer 6, an organic layer 7 including a light emitting layer, and a reflective electrode layer 8 on the surface of a transparent substrate 5. The protective layer 10 is formed so as to cover the entire organic EL element 9. The back surface of the transparent substrate 5 faces the transparent member 2 as the front surface 1 a of the surface light emitting device 1.
Here, the transparent substrate 5 should just be formed from the material which has a transmittance | permeability with respect to visible light, Glass, resin, etc. can be used for it. The transparent electrode layer 6 has only to have a function as an electrode and to be at least transparent to visible light. For example, ITO is used as the material thereof.

有機層７は、発光層のみの単層、または正孔注入層、正孔輸送層、正孔注入輸送層、正孔阻止層、電子注入層、電子輸送層、電子阻止層の一層以上と発光層が積層された多層のいずれであってもよい。発光層の材料としては、少なくともＡｌｑ３やＤＣＭなどの公知の有機発光材料が含有される。また、正孔注入層、正孔輸送層、正孔注入輸送層、正孔阻止層、電子注入層、電子輸送層、電子阻止層などは、公知の材料から適宜形成される。
反射電極層８は、電極としての機能を有し且つ少なくとも可視光に対して反射性を有すればよく、例えばＡｌ、Ｃｒ、Ｍｏ、Ａｌ合金、Ａｌ／Ｍｏ積層体等を採用することができる。
保護層１０は、例えばプラズマＣＶＤ法により形成される窒化珪素、酸窒化珪素及び酸化珪素等が用いられる。 The organic layer 7 emits light with a single light emitting layer alone or with one or more of a hole injection layer, a hole transport layer, a hole injection transport layer, a hole blocking layer, an electron injection layer, an electron transport layer, and an electron blocking layer. Any of a multilayer in which layers are laminated may be used. As a material for the light emitting layer, at least a known organic light emitting material such as Alq 3 or DCM is contained. In addition, the hole injection layer, the hole transport layer, the hole injection transport layer, the hole blocking layer, the electron injection layer, the electron transport layer, the electron blocking layer, and the like are appropriately formed from known materials.
The reflective electrode layer 8 only needs to have a function as an electrode and be reflective to at least visible light. For example, Al, Cr, Mo, an Al alloy, an Al / Mo laminate, or the like can be employed. .
The protective layer 10 is made of, for example, silicon nitride, silicon oxynitride, or silicon oxide formed by a plasma CVD method.

透明部材２は、被表示物を立体的に見せる際に必要な光路を確保するためのものであり、適度な厚さを有することが好ましい。透明部材２としては、ポリカーボネートやアクリル等の透明な樹脂板を用いることができるが、ガラス板を使用することもできる。
意匠構成層３は、後面３ｂが光反射性を有する遮光層から形成されており、表示しようとする意匠の形状に対応してパターニングされ、開口部３ｃを有している。
保護板４としては、ポリカーボネートやアクリル等の透明な樹脂板あるいはガラス板が用いられ、透明な樹脂フィルムを使用することもできる。 The transparent member 2 is for ensuring an optical path required when the display object is viewed three-dimensionally, and preferably has an appropriate thickness. As the transparent member 2, a transparent resin plate such as polycarbonate or acrylic can be used, but a glass plate can also be used.
The design constituent layer 3 has a rear surface 3b formed of a light-shielding layer having light reflectivity, and is patterned corresponding to the shape of the design to be displayed, and has an opening 3c.
As the protective plate 4, a transparent resin plate or glass plate such as polycarbonate or acrylic is used, and a transparent resin film can also be used.

具体的には、透明部材２として厚さ３ｍｍのポリカーボネート板、意匠構成層３として被表示物である文字の形状が打ち抜かれ且つ裏面に鏡面処理が施されたアルミニウム板、保護板４として厚さ０．５ｍｍのポリカーボネート板をそれぞれ使用した。   Specifically, a polycarbonate plate having a thickness of 3 mm as the transparent member 2, an aluminum plate in which the shape of a character to be displayed is punched as the design constituent layer 3, and a mirror surface treatment is applied to the back surface, and a thickness as the protective plate 4 Each 0.5 mm polycarbonate plate was used.

次に、この実施の形態１に係る表示装置の作用について説明する。この表示装置は、例えば保護板４を室内に向けた状態で自動車等の車両の室内に設置される。
面発光装置１の透明電極層６と反射電極層８との間に電流を流して有機ＥＬ素子９を点灯すると、有機層７で発した光が直接透明電極層６へ入射し、あるいは反射電極層８で反射した後に透明電極層６へ入射し、さらに透明基板５を透過して面発光装置１の前面１ａから出射される。 Next, the operation of the display device according to the first embodiment will be described. This display device is installed in the room of a vehicle such as an automobile, for example, with the protective plate 4 facing the room.
When a current is passed between the transparent electrode layer 6 and the reflective electrode layer 8 of the surface light emitting device 1 to light the organic EL element 9, light emitted from the organic layer 7 is directly incident on the transparent electrode layer 6, or the reflective electrode. After being reflected by the layer 8, the light enters the transparent electrode layer 6, further passes through the transparent substrate 5, and is emitted from the front surface 1 a of the surface light emitting device 1.

ここで、車両の搭乗者等の看者が図１の矢印Ａで示される方向からこの表示装置を見るものとすると、有機層７の特定の発光領域７ｘで発した光Ｌ１，Ｌ２が、面発光装置１の前面１ａから出射された後、透明部材２を透過してパターニングされている意匠構成層３の開口部３ｃから直接外部へ出射され、看者の目に到達する。
なお、光Ｌ１，Ｌ２は、意匠構成層３の開口部３ｃの両端部をそれぞれ通る光を示している。同様に、図１に示される光Ｌ１と光Ｌ２の間を互いに平行に通るそれぞれの光が看者の目に到達するため、看者は、意匠構成層３の開口部３ｃにより発光パターンＳ１を認識することとなる。 Here, if a viewer such as a vehicle occupant views the display device from the direction indicated by the arrow A in FIG. 1, the lights L1 and L2 emitted from the specific light emitting region 7x of the organic layer 7 are After being emitted from the front surface 1a of the light emitting device 1, the light is emitted to the outside directly from the opening 3c of the design constituting layer 3 which is patterned through the transparent member 2, and reaches the eyes of the viewer.
In addition, light L1, L2 has shown the light which each passes through the both ends of the opening part 3c of the design structure layer 3. FIG. Similarly, since each light passing in parallel between the light L1 and the light L2 shown in FIG. 1 reaches the eyes of the viewer, the viewer can view the light emission pattern S1 through the opening 3c of the design constituting layer 3. Will be recognized.

一方、有機層７の他の発光領域７ｙで発した光Ｌ３，Ｌ４は、意匠構成層３の開口部３ｃから直接外部へ出射されて看者の目に到達することはできないが、透明部材２を透過して意匠構成層３の光反射性を有する後面３ｂに入射し、ここで反射して再び透明部材２を透過した後、面発光装置１の透明基板５、透明電極層６及び有機層７を順次透過し、反射電極層８で反射して有機層７、透明電極層６、透明基板５を順次透過し、面発光装置１の前面１ａから出射される。このようにして意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返した光Ｌ３，Ｌ４は、意匠構成層３の開口部３ｃから外部へ出射され、看者の目に到達する。
なお、光Ｌ３は、意匠構成層３の開口部３ｃに隣接した部位の後面３ｂで反射した光を示している。同様に、意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返した後に図１に示される光Ｌ３と光Ｌ２の間を互いに平行に通るそれぞれの光が看者の目に到達する。 On the other hand, the lights L3 and L4 emitted from the other light emitting regions 7y of the organic layer 7 are directly emitted to the outside from the opening 3c of the design constituting layer 3 and cannot reach the eyes of the viewer, but the transparent member 2 Is transmitted through the transparent member 2 again after being incident on the rear surface 3b having the light reflectivity of the design constituent layer 3 and then transmitted through the transparent member 2, and then the transparent substrate 5, the transparent electrode layer 6 and the organic layer of the surface light emitting device 1. 7 is sequentially transmitted, is reflected by the reflective electrode layer 8, is sequentially transmitted through the organic layer 7, the transparent electrode layer 6, and the transparent substrate 5, and is emitted from the front surface 1 a of the surface light emitting device 1. The lights L3 and L4 that are repeatedly reflected between the rear surface 3b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light emitting device 1 in this way are emitted to the outside from the opening 3c of the design constituting layer 3, and viewed. Reach the eyes of the other.
In addition, the light L3 has shown the light reflected by the rear surface 3b of the site | part adjacent to the opening part 3c of the design structure layer 3. FIG. Similarly, after repeating reflection between the rear surface 3b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light-emitting device 1, each light passing between the light L3 and the light L2 shown in FIG. Reach the eyes of the observer.

したがって、光Ｌ３と光Ｌ２の間の領域は、有機層７の特定の発光領域７ｘで発した光と他の発光領域７ｙで発した光が共に通過することとなり、看者には、発光パターンＳ１のうち光Ｌ３と光Ｌ２の間に比較的明るい発光パターンＳ２が認識される。一方、光Ｌ１と光Ｌ３の間の領域は、有機層７の特定の発光領域７ｘで発した光のみが通り、他の発光領域７ｙで発した光は通ることができないため、比較的暗い発光パターンＳ３が認識される。その結果、意匠構成層３の開口部３ｃによる発光パターンＳ１内に比較的明るい発光パターンＳ２と比較的暗い発光パターンＳ３による部分的な明暗が生じ、意匠構成層３により表される被表示物の意匠性が向上する。また、光の明暗に起因して被表示物を立体的に見せることができる。   Accordingly, in the region between the light L3 and the light L2, both the light emitted from the specific light emitting region 7x of the organic layer 7 and the light emitted from the other light emitting region 7y pass through, and the viewer can see the light emission pattern. A relatively bright light emission pattern S2 is recognized between the light L3 and the light L2 in S1. On the other hand, in the region between the light L1 and the light L3, only light emitted from the specific light emitting region 7x of the organic layer 7 passes, and light emitted from the other light emitting regions 7y cannot pass. Pattern S3 is recognized. As a result, a partial brightness due to the relatively bright light emitting pattern S2 and the relatively dark light emitting pattern S3 is generated in the light emitting pattern S1 by the opening 3c of the design constituting layer 3, and the display object represented by the design constituting layer 3 is displayed. Designability is improved. In addition, the display object can be displayed in three dimensions due to light brightness.

なお、面発光装置１の発光時には、有機層７の全面で発光されるが、上述したように、意匠構成層３の開口部３ｃから直接外部へ出射されない光も、意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返した後に意匠構成層３の開口部３ｃから外部へ出射されるため、無駄な発光が少ないという効果を奏する。   Note that, when the surface light emitting device 1 emits light, light is emitted from the entire surface of the organic layer 7, but as described above, the light that is not directly emitted to the outside from the opening 3 c of the design constituting layer 3 is also the rear face 3 b of the design constituting layer 3. And the reflective electrode layer 8 of the surface light emitting device 1 are repeatedly reflected and then emitted from the opening 3c of the design constituting layer 3 to the outside, so that there is an effect that unnecessary light emission is reduced.

また、面発光装置１の非発光時には、意匠構成層３の開口部３ｃを通る外光により被表示物を認識することができる。このとき、図２に示されるように、意匠構成層３の開口部３ｃから透明部材２に入射した外光Ｌ５，Ｌ６は、面発光装置１の透明基板５、透明電極層６及び有機層７を順次透過し、反射電極層８で反射して再び有機層７、透明電極層６、透明基板５を順次透過し、さらに透明部材２を透過して意匠構成層３の開口部３ｃから出射される。
なお、光Ｌ５は意匠構成層３の開口部３ｃの一端部を通って入射した光、光Ｌ６は意匠構成層３の開口部３ｃの他端部を通って出射した光を示している。同様に、図２に示される光Ｌ５と光Ｌ６の間の領域を互いに平行に通るそれぞれの光が看者の目に到達する。このようにして、看者は、比較的明るいパターンＳ４を認識することとなる。 Further, when the surface light emitting device 1 is not emitting light, the display object can be recognized by the external light passing through the opening 3 c of the design constituting layer 3. At this time, as shown in FIG. 2, the external lights L5 and L6 incident on the transparent member 2 from the opening 3c of the design constituting layer 3 are the transparent substrate 5, the transparent electrode layer 6, and the organic layer 7 of the surface light emitting device 1. Are sequentially transmitted, reflected by the reflective electrode layer 8 and again transmitted sequentially through the organic layer 7, the transparent electrode layer 6, and the transparent substrate 5, and further transmitted through the transparent member 2 and emitted from the opening 3 c of the design constituting layer 3. The
The light L5 indicates light incident through one end of the opening 3c of the design constituting layer 3, and the light L6 indicates light emitted through the other end of the opening 3c of the design constituting layer 3. Similarly, each light passing through the region between the light L5 and the light L6 shown in FIG. 2 in parallel with each other reaches the eyes of the viewer. In this way, the viewer recognizes the relatively bright pattern S4.

また、透明部材２内に入射した外光のうち、意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返した光Ｌ７，Ｌ８も、意匠構成層３の開口部３ｃから外部へ出射され、看者の目に到達する。
なお、光Ｌ７は、意匠構成層３の開口部３ｃの一端部を通って出射した光を示している。同様に、意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返した後に図２に示される光Ｌ７と光Ｌ５の間の領域を互いに平行に通るそれぞれの光が看者の目に到達する。ただし、これら光Ｌ７と光Ｌ５の間の領域を通って出射される外光は、既に意匠構成層３の後面３ｂと面発光装置１の反射電極層８との間で反射を繰り返しているため光の強度が減衰しており、したがって看者はここに比較的暗いパターンＳ５を認識することとなる。 In addition, among the external light incident on the transparent member 2, the light L <b> 7 and L <b> 8 repeatedly reflected between the rear surface 3 b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light emitting device 1 The light is emitted from the opening 3c to the outside and reaches the eyes of the viewer.
In addition, the light L7 has shown the light radiate | emitted through the one end part of the opening part 3c of the design structure layer 3. FIG. Similarly, after repeating reflection between the rear surface 3b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light emitting device 1, the regions between the light L7 and the light L5 shown in FIG. The light reaches the eyes of the viewer. However, the external light emitted through the region between the light L7 and the light L5 has already been repeatedly reflected between the rear surface 3b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light emitting device 1. The intensity of the light is attenuated, so the viewer will recognize a relatively dark pattern S5 here.

このように、面発光装置１の非発光時においては、外光により発光時とは逆のパターンとはなるが、発光時と同様に光の明暗パターンが生じ、意匠構成層３により表される被表示物の意匠性が向上すると共に光の明暗に起因して被表示物を立体的に見せることができる。   As described above, when the surface light emitting device 1 is not emitting light, a pattern opposite to that at the time of light emission is caused by external light, but a light light / dark pattern is generated as in the case of light emission and is represented by the design constituting layer 3. The design of the display object can be improved, and the display object can be displayed three-dimensionally due to the brightness of light.

なお、上記の実施の形態１では、面発光装置１の前面１ａと透明部材２の後面２ｂが面同士で対向された合わせ面とされているが、図３に示すように、面発光装置１の前面１ａと透明部材２の後面２ｂとが空間Ｋで離間され、図３に示されない箇所で面発光装置１と透明部材２が固定あるいはリブ等で支持されている形態であっても良い。あるいは、この空間Ｋに、例えば、透明部材２や透明基板５の屈折率とは異なる屈折率の固体部材や液体、気体等が封入されていたり、空間Ｋにゲル状のクッション材等を充填し、衝撃吸収性を向上させる形態であってもよい。
また、意匠構成層３の後面３ｂと面発光装置１の反射電極層８は、反射率が高いほど発光時の明暗パターンが明確となるので好ましい。 In the first embodiment described above, the front surface 1a of the surface light emitting device 1 and the rear surface 2b of the transparent member 2 are the mating surfaces that face each other. However, as shown in FIG. The front surface 1a and the rear surface 2b of the transparent member 2 may be separated by a space K, and the surface light emitting device 1 and the transparent member 2 may be fixed or supported by a rib or the like at a location not shown in FIG. Alternatively, for example, the space K is filled with a solid member, liquid, gas, or the like having a refractive index different from that of the transparent member 2 or the transparent substrate 5, or the space K is filled with a gel cushion material or the like. Further, it may be in a form that improves shock absorption.
Further, the rear surface 3b of the design constituting layer 3 and the reflective electrode layer 8 of the surface light-emitting device 1 are preferable because the bright and dark pattern at the time of light emission becomes clearer as the reflectance is higher.

実施の形態２
上記の実施の形態１では、意匠構成層３として裏面に鏡面処理が施されたアルミニウム板を用いたが、図４に示されるように、例えば保護板４の後面４ｂ上にＡｌ、Ｃｒ、Ｍｏ等の金属材料を蒸着することによりパターニング形成された光反射性の遮光層１１を用いることもできる。また、蒸着に限らず、メッキまたはメッキ調ホットスタンピングまたは印刷によっても光反射性の遮光層１１を形成することができる。さらに、上述したような金属材料からなる鏡面状のマスキングシートを保護板４の後面４ｂ上に貼付してもよい。 Embodiment 2
In the first embodiment, an aluminum plate having a mirror-finished back surface is used as the design constituent layer 3, but as shown in FIG. 4, for example, Al, Cr, Mo on the rear surface 4 b of the protection plate 4. It is also possible to use a light-reflective light-shielding layer 11 formed by patterning by depositing a metal material such as the like. Further, the light-reflective light-shielding layer 11 can be formed not only by vapor deposition but also by plating or plating-like hot stamping or printing. Furthermore, a mirror-like masking sheet made of a metal material as described above may be stuck on the rear surface 4b of the protective plate 4.

実施の形態３
図５に示されるように、実施の形態２の表示装置において、光反射性の遮光層１１の上に所望の模様パターンが描かれた光透過性の模様層１２を形成し、これら遮光層１１と模様層１２により意匠構成層３を構成することもできる。
このようにすれば、遮光層１１と面発光装置１の反射電極層８との間で反射を繰り返す光が模様層１２を透過するため、図１に示した発光パターンＳ２及び図２に示したパターンＳ５に模様が付され、さらに意匠性を向上させることが可能となる。 Embodiment 3
As shown in FIG. 5, in the display device according to the second embodiment, a light-transmitting pattern layer 12 on which a desired pattern is drawn is formed on a light-reflecting light-blocking layer 11. The design constituting layer 3 can also be constituted by the pattern layer 12.
In this case, since light that repeatedly reflects between the light shielding layer 11 and the reflective electrode layer 8 of the surface light emitting device 1 passes through the pattern layer 12, the light emission pattern S2 shown in FIG. 1 and the light emission pattern shown in FIG. A pattern is added to the pattern S5, and the design can be further improved.

なお、図６に示されるように、意匠構成層３として、保護板４の後面４ｂ上に光反射性の乏しい遮光層１３を形成すると共にこの遮光層１３の上に所望の模様にパターニングされた光反射性の模様層１４を形成しても、この光反射性の模様層１４と面発光装置１の反射電極層８との間で反射を繰り返すことにより、図１に示した発光パターンＳ２及び図２に示したパターンＳ５に模様を付することができる。   As shown in FIG. 6, a light shielding layer 13 having poor light reflectivity was formed on the rear surface 4b of the protective plate 4 as the design constituting layer 3, and patterned into a desired pattern on the light shielding layer 13. Even when the light-reflective pattern layer 14 is formed, by repeating reflection between the light-reflective pattern layer 14 and the reflective electrode layer 8 of the surface light-emitting device 1, the light-emitting pattern S2 shown in FIG. A pattern can be added to the pattern S5 shown in FIG.

実施の形態４
図７に示されるように、実施の形態２の表示装置において、光反射性の遮光層１１の上に着色層１５を形成し、これら遮光層１１と着色層１５により意匠構成層３を構成することもできる。
このようにすれば、遮光層１１と面発光装置１の反射電極層８との間で反射を繰り返す光が着色層１５を透過するため、図１に示した発光パターンＳ２及び図２に示したパターンＳ５に着色が施され、さらに意匠性を向上させることが可能となる。
なお、パターニングされた遮光層１１の表面上だけでなく、遮光層１１が存在しない領域にまで至るように着色層１５を全面に形成すれば、被表示物がすべて着色されることになる。 Embodiment 4
As shown in FIG. 7, in the display device according to the second embodiment, the colored layer 15 is formed on the light-reflective light-shielding layer 11, and the design constituting layer 3 is configured by the light-shielding layer 11 and the colored layer 15. You can also.
In this case, since light that repeatedly reflects between the light shielding layer 11 and the reflective electrode layer 8 of the surface light emitting device 1 passes through the colored layer 15, the light emitting pattern S2 shown in FIG. 1 and the light emitting pattern S2 shown in FIG. The pattern S5 is colored to further improve the design.
If the colored layer 15 is formed not only on the surface of the patterned light shielding layer 11 but also on the entire surface so as to reach the region where the light shielding layer 11 does not exist, all the objects to be displayed are colored.

実施の形態５
図８に示されるように、実施の形態４の表示装置において、着色層１５の上に所望の模様パターンが描かれた光透過性の模様層１２を形成し、これら遮光層１１と着色層１５と模様層１２により意匠構成層３を構成することもできる。
このようにすれば、遮光層１１と面発光装置１の反射電極層８との間で反射を繰り返す光が着色層１５と模様層１２を透過するため、図１に示した発光パターンＳ２及び図２に示したパターンＳ５に模様と着色が付され、さらに意匠性を向上させることが可能となる。
なお、着色層１５と模様層１２を逆にして、遮光層１１の上に模様層１２と着色層１５を順次形成しても同様である。 Embodiment 5
As shown in FIG. 8, in the display device according to the fourth embodiment, a light-transmitting pattern layer 12 on which a desired pattern is drawn is formed on the colored layer 15, and the light shielding layer 11 and the colored layer 15 are formed. The design constituting layer 3 can also be constituted by the pattern layer 12.
In this way, the light that repeatedly reflects between the light shielding layer 11 and the reflective electrode layer 8 of the surface light emitting device 1 passes through the colored layer 15 and the pattern layer 12, so that the light emitting pattern S2 and FIG. A pattern and coloring are given to pattern S5 shown in 2, and it becomes possible to improve design nature further.
The same applies if the colored layer 15 and the patterned layer 12 are reversed and the patterned layer 12 and the colored layer 15 are sequentially formed on the light shielding layer 11.

また、図９に示されるように、意匠構成層３として、保護板４の後面４ｂ上に光反射性の乏しい遮光層１３を形成すると共にこの遮光層１３の上に所望の模様にパターニングされた光反射性の模様層１４を形成し、さらにこの模様層１４の上に着色層１５を形成しても、この光反射性の模様層１４と面発光装置１の反射電極層８との間で反射を繰り返すことにより、図１に示した発光パターンＳ２及び図２に示したパターンＳ５に模様と着色を付することができる。   Further, as shown in FIG. 9, a light shielding layer 13 with poor light reflectivity is formed on the rear surface 4b of the protective plate 4 as the design constituting layer 3, and is patterned into a desired pattern on the light shielding layer 13. Even if the light-reflective pattern layer 14 is formed and the colored layer 15 is further formed on the pattern layer 14, the light-reflective pattern layer 14 and the reflective electrode layer 8 of the surface light-emitting device 1 are interposed. By repeating the reflection, a pattern and coloring can be given to the light emitting pattern S2 shown in FIG. 1 and the pattern S5 shown in FIG.

上記の実施の形態２〜５において、意匠構成層３を保護板４の後面４ｂ上に形成する代わりに透明部材２の前面２ａ上に形成してもよい。さらに、透明部材２及び保護板４とは独立して形成された意匠構成層３を保護板４の後面４ｂ上または透明部材２の前面２ａ上に配置することもできる。   In Embodiments 2 to 5 described above, the design constituting layer 3 may be formed on the front surface 2 a of the transparent member 2 instead of forming on the rear surface 4 b of the protection plate 4. Furthermore, the design constituent layer 3 formed independently of the transparent member 2 and the protective plate 4 can be disposed on the rear surface 4 b of the protective plate 4 or on the front surface 2 a of the transparent member 2.

上記の実施の形態１〜５では、面発光装置１として有機ＥＬ装置を用いているので、表示装置を容易に薄型化することができると共に曲面形状とすることができ、自動車等の室内に設置しやすくなる。
また、ボトムエミッション型の有機ＥＬ装置を有する面発光装置１が使用されたが、これに限るものではなく、トップエミッション型の有機ＥＬ装置を有する鏡面型の面発光装置を使用することもできる。また、有機ＥＬ装置に限るものでもなく、無機ＥＬ装置を有する鏡面型の面発光装置を用いてもよい。 In the above first to fifth embodiments, since the organic EL device is used as the surface light emitting device 1, the display device can be easily thinned and curved, and installed in a room such as an automobile. It becomes easy to do.
Further, although the surface light emitting device 1 having the bottom emission type organic EL device is used, the present invention is not limited to this, and a mirror surface type light emitting device having the top emission type organic EL device can also be used. Further, the invention is not limited to the organic EL device, and a mirror-type surface light emitting device having an inorganic EL device may be used.

この発明の表示装置は、例えば自動車等の車両の室内において、スカッフプレートに設置することができる。スカッフプレートに実施の形態１〜５のいずれかで構成される表示装置を組み込んで、例えば車種や会社名を表す文字を表示すれば、意匠性の高い表示を行うことができる。
文字に限らず、ロゴやマーク、あるいは幾何学模様等を表示装置に表示させてもよい。また、この表示装置を車内の照明として利用することも可能である。
スカッフプレートにこの発明の表示装置を組み込む場合には、ドアを開いたときに表示装置が点灯するように、表示装置をドアの開閉に連動させて駆動することが好ましい。 The display device of the present invention can be installed on a scuff plate in the interior of a vehicle such as an automobile. If the display device constituted by any one of Embodiments 1 to 5 is incorporated in the scuff plate and, for example, characters representing a vehicle type or a company name are displayed, a highly designable display can be performed.
Not only characters but also logos, marks, geometric patterns, etc. may be displayed on the display device. It is also possible to use this display device as interior lighting.
When the display device of the present invention is incorporated in the scuff plate, it is preferable to drive the display device in conjunction with the opening and closing of the door so that the display device lights when the door is opened.

スカッフプレートの他、この発明に係る表示装置は、車両の室内の各所に設置することができる。さらに、自動車等の車両に限るものではなく、建造物の室内や家具、電化製品等にこの発明の表示装置を設置することもでき、設置場所には限定されない。   In addition to the scuff plate, the display device according to the present invention can be installed at various locations in the vehicle interior. Furthermore, the display device of the present invention is not limited to a vehicle such as an automobile, and the display device of the present invention can be installed in a room of a building, furniture, electrical appliances, or the like, and is not limited to an installation location.

実施の形態１に係る表示装置の発光時の様子を示す断面図である。FIG. 3 is a cross-sectional view showing a state when the display device according to Embodiment 1 emits light. 実施の形態１に係る表示装置の非発光時の様子を示す断面図である。FIG. 3 is a cross-sectional view illustrating a state when the display device according to Embodiment 1 is not emitting light. 実施の形態１の変形例に係る表示装置の発光時の様子を示す断面図である。FIG. 10 is a cross-sectional view showing a state when a display device according to a modification of the first embodiment emits light. 実施の形態２の表示装置における意匠構成層の構造を示す断面図である。6 is a cross-sectional view showing a structure of a design constituent layer in the display device of Embodiment 2. FIG. 実施の形態３の表示装置における意匠構成層の構造を示す断面図である。10 is a cross-sectional view illustrating a structure of a design constituent layer in a display device according to Embodiment 3. FIG. 実施の形態３の変形例に係る表示装置における意匠構成層の構造を示す断面図である。FIG. 10 is a cross-sectional view illustrating a structure of a design constituent layer in a display device according to a modification of the third embodiment. 実施の形態４の表示装置における意匠構成層の構造を示す断面図である。FIG. 10 is a cross-sectional view illustrating a structure of a design constituent layer in a display device according to a fourth embodiment. 実施の形態５の表示装置における意匠構成層の構造を示す断面図である。FIG. 10 is a cross-sectional view illustrating a structure of a design constituent layer in a display device according to a fifth embodiment. 実施の形態５の変形例に係る表示装置における意匠構成層の構造を示す断面図である。FIG. 10 is a cross-sectional view showing a structure of a design constituent layer in a display device according to a modification of the fifth embodiment.

符号の説明Explanation of symbols

１ 面発光装置、２ 透明部材、３ 意匠構成層、４ 保護板、５ 透明基板、６ 透明電極層、７ 有機層、８ 反射電極層、９ 有機ＥＬ素子、１０ 保護層、１１，１３ 遮光層、１２，１４ 模様層、１５ 着色層、１ａ，２ａ，３ａ 前面、２ｂ，３ｂ，４ｂ 後面、３ｃ 開口部、７ｘ，７ｙ 発光領域、Ｋ 空間、Ｌ１〜Ｌ４ 光、Ｌ５〜Ｌ８ 外光、Ｓ１〜Ｓ３ 発光パターン、Ｓ４，Ｓ５ パターン。   DESCRIPTION OF SYMBOLS 1 Surface light-emitting device, 2 transparent member, 3 design constituent layers, 4 protection board, 5 transparent substrate, 6 transparent electrode layer, 7 organic layer, 8 reflective electrode layer, 9 organic EL element, 10 protective layer, 11, 13 light shielding layer 12, 14 Pattern layer, 15 Colored layer, 1a, 2a, 3a Front surface, 2b, 3b, 4b Rear surface, 3c Opening, 7x, 7y Light emitting area, K space, L1-L4 light, L5-L8 outside light, S1 ~ S3 light emission pattern, S4, S5 pattern.

Claims (5)

前面から光を出射する鏡面型の面発光装置と、
前記面発光装置の前面側に配置された透明部材と、
前記透明部材の前面側に配置されると共に表示しようとする意匠の形状に対応してパターニングされた透光性の開口部を備え且つ後面が光反射性を有する遮光性の意匠構成層と
を備えたことを特徴とする表示装置。 A mirror-type surface emitting device that emits light from the front surface;
A transparent member disposed on the front side of the surface light emitting device;
A light-shielding design constituent layer that is disposed on the front surface side of the transparent member and has a light-transmitting opening patterned according to the shape of the design to be displayed, and whose rear surface is light-reflective. A display device characterized by that. 前記面発光装置と前記透明部材とは離間されて配置されている請求項１に記載の表示装置。   The display device according to claim 1, wherein the surface light emitting device and the transparent member are spaced apart. 前記意匠構成層は、遮光層と、所望の模様パターンが描かれた模様層とを有し、前記遮光層及び前記模様層のいずれか一方が光反射性を有する請求項１または２に記載の表示装置。   The said design structure layer has a light shielding layer and the pattern layer in which the desired pattern pattern was drawn, and any one of the said light shielding layer and the said pattern layer has light reflectivity. Display device. 前記意匠構成層は、着色層を有する請求項１〜３のいずれか一項に記載の表示装置。   The display device according to claim 1, wherein the design constituent layer includes a colored layer. 前記面発光装置は、反射電極層と、透明電極層と、これら反射電極層及び透明電極層の間に介在する発光層とを含むエレクトロルミネッセンス装置からなる請求項１〜４のいずれか一項に記載の表示装置。   The said surface light-emitting device consists of an electroluminescent apparatus containing a reflective electrode layer, a transparent electrode layer, and the light emitting layer interposed between these reflective electrode layers and a transparent electrode layer. The display device described.
JP2006153267A 2006-06-01 2006-06-01 Display device Pending JP2007322780A (en)

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KR101015845B1 (en) * 2009-02-06 2011-02-23 삼성모바일디스플레이주식회사 Organic electro luminescence display device
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