JP2003280554A - Display device - Google Patents
Display deviceInfo
- Publication number
- JP2003280554A JP2003280554A JP2002082631A JP2002082631A JP2003280554A JP 2003280554 A JP2003280554 A JP 2003280554A JP 2002082631 A JP2002082631 A JP 2002082631A JP 2002082631 A JP2002082631 A JP 2002082631A JP 2003280554 A JP2003280554 A JP 2003280554A
- Authority
- JP
- Japan
- Prior art keywords
- display device
- emitting material
- light emitting
- control layer
- light
- 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
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
- G09F27/008—Sun shades, shades, hoods or louvres on electronic displays to minimise the effect of direct sun light on the display
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Led Device Packages (AREA)
- Electroluminescent Light Sources (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表示装置の構成に
関する。TECHNICAL FIELD The present invention relates to a structure of a display device.
【０００２】[0002]
【従来の技術】液晶、有機ＥＬ、ＰＤＰ、カラーＬＥＤ
といった表示装置はノートＰＣ、ＴＶ、ＰＤＡ、携帯電
話等に多用されている。その中でも有機ＥＬ、ＰＤＰ、
カラーＬＥＤに代表される自発光型表示装置は、バック
ライトが不要であり、超低消費電力の表示装置として盛
んに開発されている。2. Description of the Related Art Liquid crystal, organic EL, PDP, color LED
Such display devices are widely used in notebook PCs, TVs, PDAs, mobile phones and the like. Among them, organic EL, PDP,
A self-luminous display device represented by a color LED does not require a backlight, and has been actively developed as a display device with ultra-low power consumption.
【０００３】自発光型表示装置の一例を図２に示す。１
１はガラスやプラスチック等の基板、１２は画面表示領
域の発光領域を制御する駆動回路および配線、１３は各
画素の発光材料に流す電流を決める制御層、１４は有機
ＥＬ等の発光材料、１５はガラスやプラスチックの透明
基板、１６は表示装置のフレームである。An example of a self-luminous display device is shown in FIG. 1
Reference numeral 1 is a substrate such as glass or plastic, 12 is a drive circuit and wiring for controlling the light emitting area of the screen display area, 13 is a control layer for determining a current flowing through the light emitting material of each pixel, 14 is a light emitting material such as organic EL, and 15 Is a transparent substrate made of glass or plastic, and 16 is a frame of the display device.
【０００４】この表示装置では、基板１１、駆動回路お
よび配線１２が従来の液晶表示装置で用いるブラックマ
トリックスに相当し、赤・緑・青等の発光材料１４を基
板１１，駆動回路および配線１２、電流制御層１３、透
明基板１５で閉じこめる構造をなしている。In this display device, the substrate 11, the driving circuit and the wiring 12 correspond to a black matrix used in the conventional liquid crystal display device, and the light emitting material 14 such as red, green and blue is used for the substrate 11, the driving circuit and the wiring 12, The current control layer 13 and the transparent substrate 15 are contained in the structure.
【０００５】また、一般的に電流制御層１３はトランジ
スタ等で形成されている。The current control layer 13 is generally formed of a transistor or the like.
【０００６】[0006]
【発明が解決しようとする課題】これらの自発光型表示
装置では、従来の透過型液晶表示装置と同様、屋外での
視認性が悪くなる。特に表示装置の周囲の輝度が増加す
るとともに、急激に視認性が悪くなる。In these self-luminous display devices, the visibility in the outdoors becomes poor as in the conventional transmissive liquid crystal display device. In particular, the brightness around the display device increases and the visibility sharply deteriorates.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、自発光型の発光材料を光源とする表示装
置であって、表示装置の周囲の輝度に応じて前記発光材
料に流す電流を調整する電流制御層を各画素毎に有する
ことを特徴とする表示装置。In order to solve the above problems, the present invention provides a display device using a self-luminous light emitting material as a light source, wherein the light emitting material is provided according to the brightness of the surroundings of the display device. A display device having a current control layer for adjusting a current to be supplied for each pixel.
【０００８】また、本発明は、自発光型の発光材料を光
源とする表示装置であって、発光材料に流す電流を調整
する電流制御層の一部と、表示装置の透明基板とが接す
る構造であることを特徴とする表示装置である。The present invention is also a display device using a self-luminous light emitting material as a light source, in which a part of a current control layer for adjusting a current flowing through the light emitting material is in contact with a transparent substrate of the display device. Is a display device.
【０００９】また、本発明は、電流制御層としてトラン
ジスタを用いたことを特徴とする表示装置である。The present invention is also a display device using a transistor as a current control layer.
【００１０】また、本発明は、発光材料として有機ＥＬ
を用いることを特徴とする表示装置である。The present invention also provides an organic EL as a light emitting material.
Is a display device characterized by using.
【００１１】また、本発明は、発光材料としてＬＥＤを
用いることを特徴とする表示装置である。Further, the present invention is a display device characterized by using an LED as a light emitting material.
【００１２】また、本発明は、発光材料として、プラズ
マおよび蛍光体を用いることを特徴とする表示装置であ
る。Further, the present invention is a display device characterized by using plasma and phosphor as the light emitting material.
【００１３】また、本発明は、表示装置非使用時には、
表示装置を遮光性のカバーで覆うことを特徴とする表示
装置である。Further, according to the present invention, when the display device is not used,
A display device is characterized in that the display device is covered with a light-shielding cover.
【００１４】自発光型表示装置の表示輝度は、発光材料
に流れる電流によって決まるため、この電流制御層に、
表示装置の周囲の輝度によって電流を調整する機能を追
加すれば良い。The display brightness of the self-luminous display device is determined by the current flowing through the light emitting material.
The function of adjusting the current depending on the brightness of the surroundings of the display device may be added.
【００１５】[0015]
【発明の実施の形態】この表示装置のうち、有機ＥＬを
発光材料として用いた表示装置の一例を図１に示す。各
画素にある電流制御層１３の一部を、透明電極１５に接
する構造とする。これにより、電流制御層１３には、駆
動回路および配線１２から流れる電流に、表示装置の周
囲光から透明基板１５を通じて生じる光電流が加わるた
め、発光材料１４には表示装置の周囲輝度に応じた電流
が流れ、周囲輝度に応じた輝度で表示する表示装置が実
現できる。FIG. 1 shows an example of a display device using an organic EL as a light emitting material among the display devices. Part of the current control layer 13 in each pixel is in contact with the transparent electrode 15. As a result, a photocurrent generated from ambient light of the display device through the transparent substrate 15 is added to the current flowing from the drive circuit and the wiring 12 in the current control layer 13, so that the light emitting material 14 is adjusted according to the ambient brightness of the display device. It is possible to realize a display device in which a current flows and the display is performed with the brightness according to the ambient brightness.
【００１６】表示装置の周囲光から透明基板１５を通じ
て生じる光電流は、周囲光が明るいほど電流も増加する
ため、表示装置の周囲が明るければ、表示装置も明るく
表示されるため、表示装置に対する視認性が改善され
る。The photocurrent generated from the ambient light of the display device through the transparent substrate 15 increases as the ambient light becomes brighter. Therefore, if the ambient light of the display device is bright, the display device is also displayed brightly. Sex is improved.
【００１７】また、この表示装置では、従来の有機ＥＬ
表示装置を作成するプロセスを変えずに、輝度調節機能
を追加できることも特徴である。Further, in this display device, a conventional organic EL device is used.
Another feature is that the brightness adjustment function can be added without changing the process of creating the display device.
【００１８】さらに、従来の有機ＥＬ表示装置では、高
輝度で発光されるほど、発光材料である有機ＥＬ材料が
劣化する。そこで、この表示装置を使用しない時には、
遮光性のあるカバーで表示装置を覆うだけで、表示装置
の寿命を延ばすことができることも特徴である。Furthermore, in the conventional organic EL display device, the higher the brightness of light emitted, the more deteriorated the organic EL material which is a light emitting material. Therefore, when not using this display device,
Another feature is that the life of the display device can be extended only by covering the display device with a light-shielding cover.
【００１９】本実施例では、発光材料の一例として有機
ＥＬを記載したが、発光材料としては、ＬＥＤ、またＰ
ＤＰ表示装置用のプラズマおよび蛍光材料でも、同様な
効果が得られる。In this embodiment, an organic EL is described as an example of the light emitting material, but as the light emitting material, an LED or P
Similar effects can be obtained with plasma and fluorescent materials for DP display devices.
【００２０】[0020]
【発明の効果】上記により、電流制御層１３の形状を変
更するだけで、表示装置の周囲光に応じて表示輝度が調
整できる表示装置が実現できる。As described above, a display device in which the display brightness can be adjusted according to the ambient light of the display device can be realized only by changing the shape of the current control layer 13.
【図１】本発明の表示装置の一例を示す図FIG. 1 is a diagram showing an example of a display device of the present invention.
【図２】従来の表示装置の一例を示す図FIG. 2 is a diagram showing an example of a conventional display device.
１１ 基板 １２ 駆動回路および配線 １３ 電流制御層 １４ 発光材料 １５ 透明基板 １６ フレーム 11 board 12 Drive circuit and wiring 13 Current control layer 14 Luminescent material 15 Transparent substrate 16 frames
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｎ 5/66 Ｈ０４Ｎ 5/66 Ａ Ｈ０５Ｂ 33/14 Ｈ０５Ｂ 33/14 Ａ Ｆターム(参考） 3K007 AB17 DB03 GA04 5C058 AA11 AA12 AA13 AB06 BA01 BA05 BB25 5C094 AA01 BA02 BA23 BA27 BA31 CA19 DA13 EB02 FA02 FB14 HA08 5F041 AA10 CB33 DA13 DA82 DA83 DB07 FF11 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H04N 5/66 H04N 5/66 A H05B 33/14 H05B 33/14 AF term (reference) 3K007 AB17 DB03 GA04 5C058 AA11 AA12 AA13 AB06 BA01 BA05 BB25 5C094 AA01 BA02 BA23 BA27 BA31 CA19 DA13 EB02 FA02 FB14 HA08 5F041 AA10 CB33 DA13 DA82 DA83 DB07 FF11
Claims (7)
置であって、前記表示装置の周囲の輝度に応じて前記発
光材料に流す電流を調整する電流制御層を各画素毎に有
することを特徴とする表示装置。1. A display device using a self-luminous light-emitting material as a light source, wherein each pixel has a current control layer for adjusting a current flowing through the light-emitting material according to the brightness of the surroundings of the display device. A display device characterized by.
置であって、前記発光材料に流す電流を調整する電流制
御層の一部と、表示装置の透明基板とが接する構造であ
ることを特徴とする、請求項１に記載の表示装置。2. A display device using a self-luminous light emitting material as a light source, wherein a part of a current control layer for adjusting a current flowing through the light emitting material and a transparent substrate of the display device are in contact with each other. The display device according to claim 1, wherein:
用いたことを特徴とする、請求項１または２のいずれか
に記載の表示装置。3. The display device according to claim 1, wherein a transistor is used as the current control layer.
ことを特徴とする、請求項１から３のいずれかに記載の
表示装置。4. The display device according to claim 1, wherein an organic EL is used as the light emitting material.
とを特徴とする、請求項１から３のいずれかに記載の表
示装置。5. The display device according to claim 1, wherein an LED is used as the light emitting material.
光体を用いることを特徴とする、請求項１から３のいず
れかに記載の表示装置。6. The display device according to claim 1, wherein plasma and phosphor are used as the light emitting material.
遮光性のカバーで覆うことを特徴とする、請求項１から
６のいずれかに記載の表示装置。7. The display device according to claim 1, wherein the display device is covered with a light-shielding cover when the display device is not used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002082631A JP2003280554A (en) | 2002-03-25 | 2002-03-25 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002082631A JP2003280554A (en) | 2002-03-25 | 2002-03-25 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003280554A true JP2003280554A (en) | 2003-10-02 |
Family
ID=29230745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002082631A Pending JP2003280554A (en) | 2002-03-25 | 2002-03-25 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003280554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012054533A (en) * | 2010-08-06 | 2012-03-15 | Nichia Chem Ind Ltd | Light emitting device and image display unit |
-
2002
- 2002-03-25 JP JP2002082631A patent/JP2003280554A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012054533A (en) * | 2010-08-06 | 2012-03-15 | Nichia Chem Ind Ltd | Light emitting device and image display unit |
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