JPH05299040A - Display device - Google Patents
Display deviceInfo
- Publication number
- JPH05299040A JPH05299040A JP10417992A JP10417992A JPH05299040A JP H05299040 A JPH05299040 A JP H05299040A JP 10417992 A JP10417992 A JP 10417992A JP 10417992 A JP10417992 A JP 10417992A JP H05299040 A JPH05299040 A JP H05299040A
- Authority
- JP
- Japan
- Prior art keywords
- electrons
- photoelectric material
- light
- display device
- phosphor
- 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
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は表示装置に関し、とりわ
け外部光電効果を有する光電材料からなる冷陰極を用い
た薄型、軽量のブラウン管（ＣＲＴ）を提供するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a thin and lightweight cathode ray tube (CRT) using a cold cathode made of a photoelectric material having an external photoelectric effect.
【０００２】[0002]
【従来の技術】表示装置の中でＣＲＴは、その画質とコ
ストの点で他の表示装置に対して圧倒的な優位性を有し
ている。しかし重量や奥行きが大きいといった欠点も有
しており薄型軽量の表示装置の開発が盛んにおこなわれ
ている。薄型ＣＲＴとしては、複数本のフィラメント熱
陰極、その前方に電子をビーム状に成形するための格子
電極、電子ビーム強度を変化させるための変調電極、電
子ビームを上下、左右に偏向するための垂直および水平
偏向電極、蛍光面などから構成され、多くの電子ビーム
（例えば数千本）を用いるものが既に開発されている。
つまり各々の電子ビームで蛍光面の限られた領域を発光
させ、それらをつなぎ合わせて１つの大きな画面を構成
するものである（特開昭６１−１０８３９号公報）。2. Description of the Related Art Among display devices, a CRT has an overwhelming advantage over other display devices in terms of image quality and cost. However, it also has the drawback of being large in weight and depth, and thin and lightweight display devices have been actively developed. As a thin CRT, a plurality of filament hot cathodes, a grid electrode for shaping electrons in a beam shape in front of it, a modulation electrode for changing the electron beam intensity, and a vertical electrode for deflecting the electron beam vertically and horizontally Also, a device that is composed of a horizontal deflection electrode, a fluorescent screen, and the like and uses many electron beams (for example, thousands) has already been developed.
That is, each electron beam emits light in a limited area of the phosphor screen and connects them to form one large screen (JP-A-61-10839).
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記の薄型Ｃ
ＲＴは多数のフィラメント熱陰極を用いるため消費電力
が大きくなること、あるいは電子ビームを偏向するため
の電極が必要であり、構成が複雑になるといった問題点
がある。However, the thin C described above is used.
Since the RT uses a large number of filament hot cathodes, it consumes a large amount of power, or requires electrodes for deflecting an electron beam, which complicates the structure.
【０００４】本発明は、電場発光素子と外部光電効果を
利用した冷陰極を採用することにより、低消費電力で構
成が単純な大面積、薄型、軽量のブラウン管（ＣＲＴ）
を提供することを目的とする。The present invention employs an electroluminescent element and a cold cathode utilizing the external photoelectric effect, and thus has a large area, thin and lightweight cathode ray tube (CRT) with low power consumption and simple structure.
The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】可視あるいは紫外光を発
する電場発光素子、前記電場発光素子から放出された光
を受けて電子を放出する光電材料、前記光電材料から放
出された電子を加速する手段、および加速された電子を
受けて可視光を放出する蛍光面とを備えた表示装置を構
成する。An electroluminescent element that emits visible or ultraviolet light, a photoelectric material that emits electrons in response to light emitted from the electroluminescent element, and means for accelerating the electrons emitted from the photoelectric material. And a phosphor screen that receives accelerated electrons and emits visible light.
【０００６】[0006]
【作用】上記の表示装置においては、外部光電効果を有
する光電材料からなる冷陰極から放出された電子を、数
ｋＶから数十ｋＶに加速し蛍光体に照射し発光させるも
のである。また、冷陰極から放出される電子の数は、冷
陰極に照射する光の強度に比例するため、電場発光素子
の発光出力を制御することにより蛍光面の輝度を制御で
きる。したがって、熱陰極のように常時加熱する必要が
なく、蛍光面を発光させるときのみ電場発光素子を発光
させればよく低消費電力駆動が可能となる。In the above display device, the electrons emitted from the cold cathode made of the photoelectric material having the external photoelectric effect are accelerated from several kV to several tens kV, and the phosphor is irradiated to emit light. Further, since the number of electrons emitted from the cold cathode is proportional to the intensity of light with which the cold cathode is irradiated, the brightness of the phosphor screen can be controlled by controlling the light emission output of the electroluminescent element. Therefore, unlike the hot cathode, it is not always necessary to heat, and it is sufficient to make the electroluminescent element emit light only when the phosphor screen is made to emit light, and driving with low power consumption becomes possible.
【０００７】[0007]
（実施例１）図１に本発明の表示装置の１実施例を説明
するための装置構成を示す。ガラス基板１上にスパッタ
リング法により厚さ100nmのPt薄膜を堆積させ、フォト
リソ技術により複数本のストライプ状の第１電極２を形
成した。その上に、酸素を10％含むアルゴン雰囲気中、
450℃の基板温度でSrTiO3をｒｆスパッタリングするこ
とにより、厚さ500nmの第１絶縁体層３を形成した。第
１絶縁体層３の上には、電子ビーム蒸着法により基板温
度200℃で、１モル％のＭｎを含む厚さ400nmの硫化亜鉛
（ＺｎＳ：Ｍｎ）薄膜からなる発光体層４を形成した。(Embodiment 1) FIG. 1 shows a device configuration for explaining one embodiment of a display device of the present invention. A Pt thin film having a thickness of 100 nm was deposited on the glass substrate 1 by a sputtering method, and a plurality of stripe-shaped first electrodes 2 were formed by a photolithography technique. On top of that, in an argon atmosphere containing 10% oxygen,
SrTiO 3 was rf-sputtered at a substrate temperature of 450 ° C. to form a first insulator layer 3 having a thickness of 500 nm. On the first insulator layer 3, a phosphor layer 4 made of a zinc sulfide (ZnS: Mn) thin film having a substrate temperature of 200 ° C. and a thickness of 400 nm containing 1 mol% of Mn was formed on the first insulator layer 3. ..
【０００８】発光体層４の上に、アルゴン雰囲気中でBa
Ta2O6をｒｆスパッタリングすることにより、厚さ300nm
の第２絶縁体層５を形成した。最後に厚さ200nmのＩＴ
Ｏからなる複数本のストライプ状の第２電極６を第１電
極とは直交する方向に形成することにより電場発光素子
を完成した。電場発光素子の上には、ナトリウム、カリ
ウム、アンチモン、セシウムの合金の光電材料線からな
る網材７を第１電極に沿って配置した。この網材７は第
２電極６と電気的に接続されている。On the phosphor layer 4, in an argon atmosphere, Ba
The thickness is 300 nm by rf sputtering Ta 2 O 6.
The second insulator layer 5 was formed. Finally, IT with a thickness of 200 nm
An electroluminescent device was completed by forming a plurality of stripe-shaped second electrodes 6 made of O in a direction orthogonal to the first electrodes. On the electroluminescent element, a mesh member 7 made of a photoelectric material wire made of an alloy of sodium, potassium, antimony and cesium was arranged along the first electrode. The mesh material 7 is electrically connected to the second electrode 6.
【０００９】他のガラス基板８の上には、電場発光素子
の各発光部からの発光が、隣接した発光部に対応した光
電材料に照射されるのを防ぐため、電場発光素子の電極
と同じピッチで高さ2mmの絶縁性の障壁９を形成し、そ
の内部には赤色蛍光体（Y2O2S:Eu）１０、緑色蛍光体
（ZnS:Cu,Al）１１、および青色蛍光体（ZnS:Ag,Al）１
２を周期的に配列させ、さらに蛍光体の上には厚さ150n
mのAl薄膜陽極１３を設けた。このガラス基板８はフェ
ースプレートとなる。On the other glass substrate 8, in order to prevent the light emission from each light emitting portion of the electroluminescent element from irradiating the photoelectric material corresponding to the adjacent light emitting portion, the same as the electrode of the electroluminescent element. An insulating barrier 9 having a height of 2 mm is formed at a pitch, and a red phosphor (Y 2 O 2 S: Eu) 10, a green phosphor (ZnS: Cu, Al) 11 and a blue phosphor ( ZnS: Ag, Al) 1
2 are arranged periodically, and a thickness of 150n is placed on the phosphor.
An Al thin film anode 13 of m was provided. This glass substrate 8 becomes a face plate.
【００１０】ガラス基板１上の第１電極２と第２電極６
が重なった部分、つまり電場発光素子の発光部とガラス
基板８の上の蛍光体が設けられた部分が１対１に対向す
るように、２つの基板の周辺部を接着し内部を真空に保
持した。障壁９は基板面積が大きくなったとき、ガラス
基板１と８が大気圧により変形、破壊するのを防ぐ役割
も果たすものである。The first electrode 2 and the second electrode 6 on the glass substrate 1
The peripheral portions of the two substrates are adhered to each other so that the light emitting portion of the electroluminescent element and the portion of the glass substrate 8 on which the phosphors are provided face each other in a one-to-one manner, and the inside is kept vacuum. did. The barrier 9 also serves to prevent the glass substrates 1 and 8 from being deformed or destroyed by the atmospheric pressure when the substrate area becomes large.
【００１１】この状態でAl薄膜陽極１３に10kVの電圧を
印加しておき、マトリックス状の第１電極２と第２電極
６とを用いて、通常の電場発光素子と同様交流パルス電
圧を印加することにより線順次駆動を行い、第１電極２
と第２電極６との交点の発光体層４からなる発光部を順
次発光させた。発光部からの585nmの波長の光は網材７
に照射され、網材７からは外部光電効果より電子が放出
された。この電子は加速され蛍光体１０、１１、１２に
照射され、赤色、緑色、青色の蛍光体を明るく発光させ
た。電場発光素子の発光部とその発光強度を制御するこ
とにより文字や映像を高輝度でカラー表示することがで
きた。また光電材料と蛍光面との間に、光電材料から電
子を引き出すための網状のグリッド電極を設け、光電材
料線からなる網材７に対して数百Vの電圧をグリッド電
極に印加することにより蛍光体をより均一に発光させる
ことができた。In this state, a voltage of 10 kV is applied to the Al thin film anode 13, and an AC pulse voltage is applied by using the matrix-shaped first electrode 2 and second electrode 6 as in the case of a normal electroluminescent device. Line-sequential driving is performed, and the first electrode 2
And the second electrode 6 intersects with each other, and the light emitting portion formed of the light emitting layer 4 sequentially emits light. The light of the wavelength of 585nm from the light emitting part is the net material 7
And the electrons were emitted from the net material 7 by the external photoelectric effect. The electrons were accelerated and irradiated on the phosphors 10, 11 and 12 to cause the red, green and blue phosphors to emit bright light. Characters and images could be displayed in color with high brightness by controlling the light emitting part of the electroluminescent element and its emission intensity. In addition, a mesh grid electrode for extracting electrons from the photoelectric material is provided between the photoelectric material and the fluorescent surface, and a voltage of several hundred V is applied to the grid electrode with respect to the mesh material 7 made of the photoelectric material line. The phosphor was able to emit light more uniformly.
【００１２】（実施例２）図２に本発明の表示装置の１
実施例を説明するための装置構成を示す。金属基板１４
上にガラス粉末を塗布し、焼き付けることにより表面平
滑性の優れた絶縁体層１５を形成した後、スパッタリン
グ法により厚さ100nmのPt薄膜を堆積させ、フォトリソ
技術により複数本のストライプ状の第１電極２を形成し
た。その上に、酸素を10％含むアルゴン雰囲気中、450
℃の基板温度でSrTiO3をｒｆスパッタリングすることに
より、厚さ500nmの第１絶縁体層３を形成した。第１絶
縁体層３の上には、電子ビーム蒸着法により基板温度17
0℃で、２モル％のＧｄＦ3を含む厚さ400nmのフッ化亜
鉛（ＺｎＦ2：Ｇｄ）薄膜からなる発光体層１６を形成
した。(Embodiment 2) FIG. 2 shows a display device 1 according to the present invention.
1 shows a device configuration for explaining an embodiment. Metal substrate 14
After coating glass powder on the top and baking it to form an insulator layer 15 having excellent surface smoothness, a Pt thin film having a thickness of 100 nm is deposited by a sputtering method, and a plurality of stripe-shaped first layers are formed by a photolithography technique. The electrode 2 was formed. On top of that, in an argon atmosphere containing 10% oxygen, 450
The first insulator layer 3 having a thickness of 500 nm was formed by rf sputtering SrTiO 3 at a substrate temperature of ° C. A substrate temperature of 17 is formed on the first insulator layer 3 by electron beam evaporation.
At 0 ° C., a phosphor layer 16 made of a zinc fluoride (ZnF 2 : Gd) thin film having a thickness of 400 nm containing 2 mol% GdF 3 was formed.
【００１３】発光体層１６の上に、アルゴン雰囲気中で
BaTa2O6をｒｆスパッタリングすることにより、厚さ300
nmの第２絶縁体層５を形成した。最後に厚さ200nmのＩ
ＴＯからなる複数本のストライプ状の第２電極６を第１
電極とは直交する方向に形成することにより電場発光素
子を完成した。さらに電場発光素子の上に厚さ300nmのB
aTa2O6薄膜からなる第３絶縁体層１７を形成した後、ア
ンチモンとセシウムの合金からなる半透明の光電薄膜１
８を形成した。On the phosphor layer 16 in an argon atmosphere.
BaTa 2 O 6 is rf sputtered to a thickness of 300
A second insulator layer 5 of nm was formed. Finally, I with a thickness of 200 nm
First, a plurality of stripe-shaped second electrodes 6 made of TO are formed.
The electroluminescent device was completed by forming it in a direction orthogonal to the electrodes. In addition, B with a thickness of 300 nm is placed on the electroluminescent device.
After forming the third insulator layer 17 made of the aTa 2 O 6 thin film, a semitransparent photoelectric thin film 1 made of an alloy of antimony and cesium.
8 was formed.
【００１４】他のガラス基板８の上には、電場発光素子
の電極と同じピッチで高さ2mmの障壁９を形成し、その
内部には赤色蛍光体（Y2O2S:Eu）１０、緑色蛍光体（Zn
S:Cu,Al）１１、および青色蛍光体（ZnS:Ag,Al）１２を
周期的に配列させ、さらに蛍光体の上には厚さ150nmのA
l薄膜陽極１３を設けた。このガラス基板はフェースプ
レートとなる。On another glass substrate 8, a barrier 9 having a height of 2 mm and having the same pitch as the electrodes of the electroluminescent element is formed, and a red phosphor (Y2O2S: Eu) 10 and a green phosphor ( Zn
S: Cu, Al) 11 and blue phosphor (ZnS: Ag, Al) 12 are periodically arrayed, and on top of the phosphor, a 150 nm thick A
A thin film anode 13 was provided. This glass substrate serves as a face plate.
【００１５】ガラス基板１上の第１電極２と第２電極６
が重なった部分、つまり電場発光素子の発光部とガラス
基板８の上の蛍光体が設けられた部分が１対１に対向す
るように、２つの基板の周辺部を障壁９を介して接着し
内部を真空に保持した。The first electrode 2 and the second electrode 6 on the glass substrate 1
The peripheral portions of the two substrates are bonded via the barrier 9 so that the overlapping portions, that is, the light emitting portion of the electroluminescent element and the portion of the glass substrate 8 on which the phosphors are provided face one to one. The inside was kept under vacuum.
【００１６】この状態で光電薄膜１８を接地電位とし、
Al薄膜陽極１３に10kVの電圧を印加しておき、マトリッ
クス状の第１電極２と第２電極６とを用いて、通常の電
場発光素子と同様交流パルス電圧を印加することにより
線順次駆動を行い、第１電極２と第２電極６との交点の
発光体層４からなる発光部を順次発光させた。発光部か
らの312nmの波長の光は光電薄膜１８に照射され、光電
薄膜１８からは外部光電効果より電子が放出された。こ
の電子は加速され蛍光体１０、１１、１２に照射され、
赤色、緑色、青色の蛍光体を明るく発光させた。電場発
光素子の発光部とその発光強度を制御することにより文
字や映像を高輝度でカラー表示することができた。この
ような紫外線を発する電場発光素子を用い、紫外線に対
して高い感度を有する光電材料、あるいは可視光を遮断
し紫光光を透過する光学フィルターと光電材料とを組み
合わせて用いることにより、外光や蛍光体の発光からの
迷光が光電材料に照射されるのを防ぐことができ、コン
トラストの優れた文字や映像を表示できた。In this state, the photoelectric thin film 18 is set to the ground potential,
A voltage of 10 kV is applied to the Al thin film anode 13 in advance, and by using the matrix-shaped first electrode 2 and the second electrode 6, an AC pulse voltage is applied in the same manner as in a normal electroluminescent device to perform line sequential driving. Then, the light emitting portion formed of the light emitting layer 4 at the intersection of the first electrode 2 and the second electrode 6 sequentially emitted light. Light having a wavelength of 312 nm from the light emitting portion was applied to the photoelectric thin film 18, and electrons were emitted from the photoelectric thin film 18 by the external photoelectric effect. The electrons are accelerated and irradiated on the phosphors 10, 11, and 12,
The red, green, and blue phosphors were made to emit bright light. Characters and images could be displayed in color with high brightness by controlling the light emitting part of the electroluminescent element and its light emission intensity. By using such an electroluminescent element that emits ultraviolet rays, by using a photoelectric material having a high sensitivity to ultraviolet rays, or a combination of an optical filter that blocks visible light and transmits violet light and a photoelectric material, external light or It was possible to prevent the stray light from the emission of the phosphor from irradiating the photoelectric material, and it was possible to display characters and images with excellent contrast.
【００１７】前記実施例においては電場発光素子の発光
体層としてＺｎＳおよびＺｎＦ2を用いた場合について
説明したが、これらに限られるものではなく、ＺｎＳ
ｅ、ＣｄＳ、ＣａＳ、ＳｒＳ、ＭｇＳ、ＧａＡｓなどの
IIIーV属化合物、ダイアモンドなどのIVーIV属化合物、あ
るいはこれらの混合体からなる発光体母材を用いても同
様の効果を得ることができた。また光電材料に関して
も、実施例に示した材料以外のアルカリ金属やアルカリ
土類金属を含む材料など、外部光電効果を示す材料であ
れば有効に用いることができた。In the above-mentioned embodiment, the case where ZnS and ZnF 2 are used as the light emitting layer of the electroluminescent device has been described, but the present invention is not limited to these and ZnS is used.
e, CdS, CaS, SrS, MgS, GaAs, etc.
Similar effects could be obtained by using a phosphor base material composed of a III-V compound, a IV-IV compound such as diamond, or a mixture thereof. Further, as the photoelectric material, any material having an external photoelectric effect, such as a material containing an alkali metal or an alkaline earth metal other than the materials shown in the examples, could be effectively used.
【００１８】[0018]
【発明の効果】本発明によれば、紫外光あるいは可視光
発光の電場発光素子と外部光電効果を有する光電材料を
用いた冷陰極を採用することにより、表示面（蛍光面）
には現在のＣＲＴで用いられている高効率の蛍光体材料
を使用することができ、高輝度のカラー表示が可能で消
費電力が低く、構成が単純な大面積、薄型、軽量の表示
装置を提供することができる。According to the present invention, by adopting an electroluminescent element for emitting ultraviolet light or visible light and a cold cathode using a photoelectric material having an external photoelectric effect, a display surface (fluorescent surface) can be obtained.
The high-efficiency phosphor material used in the current CRT can be used for a high-luminance color display, low power consumption, simple structure, large area, thin, and lightweight display device. Can be provided.
【００１９】また、マトリックス状に配置された複数個
の微小な発光部を有する電場発光素子を用い、電場発光
素子の各発光部と蛍光面の発光部を１対１に対応付ける
ことにより、電子ビームを偏向するための電極群を用い
ずに蛍光面の任意の場所を任意の強度で発光させること
ができ、極めて単純な構成でカラー表示装置が形成され
るものである。Further, by using an electroluminescent device having a plurality of minute light emitting parts arranged in a matrix, and by associating each light emitting part of the electroluminescent device with the light emitting part of the phosphor screen in a one-to-one correspondence, Therefore, a color display device can be formed with an extremely simple structure, because light can be emitted at any place on the phosphor screen with any intensity without using an electrode group for deflecting the light.
【図１】本発明の一実施例における表示装置の構成を説
明するための概略図FIG. 1 is a schematic diagram for explaining a configuration of a display device according to an embodiment of the present invention.
【図２】本発明の他の実施例における表示装置の構成を
説明するための概略図FIG. 2 is a schematic diagram for explaining the configuration of a display device according to another embodiment of the present invention.
１ ガラス基板 ２ 第１電極 ３ 第１絶縁体層 ４、１６ 発光体層 ５ 第２絶縁体層 ６ 第２電極 ７ 網材 ８ ガラス基板 ９ 障壁 １０、１１、１２ 蛍光体 １３ Al薄膜陽極 １４ 金属基板 １５ 絶縁体層 １７ 第３絶縁体層 １８ 光電薄膜 1 Glass Substrate 2 First Electrode 3 First Insulator Layer 4, 16 Light Emitting Layer 5 Second Insulator Layer 6 Second Electrode 7 Netting Material 8 Glass Substrate 9 Barriers 10, 11, 12 Phosphor 13 Al Thin Film Anode 14 Metal Substrate 15 Insulator layer 17 Third insulator layer 18 Photoelectric thin film
Claims (8)
子、前記電場発光素子から放出された光を受けて電子を
放出する光電材料、前記光電材料から放出された電子を
加速する手段、および加速された電子を受けて可視光を
放出する蛍光面を有することを特徴とする表示装置。1. An electroluminescent device that emits visible or ultraviolet light, a photoelectric material that emits electrons in response to light emitted from the electroluminescent device, a means for accelerating electrons emitted from the photoelectric material, and an accelerated device. A display device having a phosphor screen that receives visible electrons and emits visible light.
Ｓ、ＣａＳ、ＳｒＳ、ＭｇＳ，ＺｎＦ2、IIIーV属化合
物、ダイアモンド、あるいはこれらの混合体からなる発
光体母材を含むことを特徴とする請求項１に記載の表示
装置。2. The electroluminescent element is ZnS, ZnSe, Cd.
The display device according to claim 1, further comprising a phosphor base material made of S, CaS, SrS, MgS, ZnF 2 , a III-V group compound, diamond, or a mixture thereof.
属を含むことを特徴とする請求項１に記載の表示装置。3. The display device according to claim 1, wherein the photoelectric material contains an alkali metal or an alkaline earth metal.
電子を引き出すためのグリッド電極を設けたことを特徴
とする請求項１に記載の表示装置。4. The display device according to claim 1, wherein a grid electrode for extracting electrons from the photoelectric material is provided between the photoelectric material and the phosphor screen.
が透過する厚さの金属薄膜を設けたことを特徴とする請
求項１に記載の表示装置。5. The display device according to claim 1, wherein a metal thin film having a thickness that allows the electrons to pass through is provided on a side of the phosphor screen where the electrons are irradiated.
外光を発するマトリックス状に配置された複数個の発光
部を有する電場発光素子、前記電場発光素子の前記絶縁
性基板とは反対側に形成され、前記電場発光素子から放
出された光を受けて電子を放出する光電材料、前記光電
材料から放出された電子を加速する手段、および加速さ
れた電子を受けて可視光を放出する蛍光面からなり、光
電材料と蛍光面との間の空間は真空であることを特徴と
する表示装置。6. An electroluminescent device having a plurality of light emitting portions formed on an insulating substrate and arranged in a matrix for emitting visible light or ultraviolet light, the electroluminescent device being provided on the opposite side of the electroluminescent device from the insulating substrate. A photoelectric material that is formed and emits electrons by receiving the light emitted from the electroluminescent device, a means for accelerating the electrons emitted from the photoelectric material, and a phosphor screen that receives the accelerated electrons and emits visible light. And a space between the photoelectric material and the phosphor screen is a vacuum.
なることを特徴とする請求項６に記載の表示装置。7. The display device according to claim 6, wherein the photoelectric material is a transparent or semitransparent thin film.
接した発光部に対応した光電材料に照射されるのを防ぐ
ための障壁が発光部間に形成されていることを特徴とす
る請求項１あるいは６に記載の表示装置。8. A barrier is formed between the light emitting portions to prevent light emitted from each light emitting portion of the electroluminescent element from irradiating the photoelectric material corresponding to the adjacent light emitting portions. The display device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10417992A JPH05299040A (en) | 1992-04-23 | 1992-04-23 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10417992A JPH05299040A (en) | 1992-04-23 | 1992-04-23 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05299040A true JPH05299040A (en) | 1993-11-12 |
Family
ID=14373791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10417992A Pending JPH05299040A (en) | 1992-04-23 | 1992-04-23 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05299040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6181307B1 (en) | 1998-01-21 | 2001-01-30 | International Business Machines Corporation | Photo-cathode electron source having an extractor grid |
-
1992
- 1992-04-23 JP JP10417992A patent/JPH05299040A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6181307B1 (en) | 1998-01-21 | 2001-01-30 | International Business Machines Corporation | Photo-cathode electron source having an extractor grid |
| KR100316506B1 (en) * | 1998-01-21 | 2002-01-16 | 포만 제프리 엘 | Photo-cathode electron source having an extractor grid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4531122A (en) | Flatscreen | |
| US4280125A (en) | Thin vacuum panel display device | |
| US6090309A (en) | Visible light-emitting phosphor composition having an enhanced luminescent efficiency over a broad range of voltages | |
| US3916245A (en) | Multiple gaseous discharge display/memory panel comprising rare gas medium and photoluminescent phosphor | |
| US5504387A (en) | Flat display where a first film electrode, a dielectric film, and a second film electrode are successively formed on a base plate and electrons are directly emitted from the first film electrode | |
| GB1515429A (en) | Fluorescent discharge cold cathode for an image display device | |
| US5489817A (en) | Electron-optical terminal image device based on a cold cathode | |
| JPH0261949A (en) | Fluorescent microdot screen and its addressing method | |
| US3651362A (en) | Screens for cathode ray tubes with discrete phosphor layers | |
| JP2005340133A (en) | Cathode panel treating method, as well as cold-cathode field electron emission display device, and its manufacturing method | |
| US5830527A (en) | Flat panel display anode structure and method of making | |
| JPH05299040A (en) | Display device | |
| JP2006164854A (en) | Fluorescent screen and image display device | |
| US5611719A (en) | Method for improving flat panel display anode plate phosphor efficiency | |
| JPH0714520A (en) | Color display device | |
| US5593562A (en) | Method for improving flat panel display anode plate phosphor efficiency | |
| US4301388A (en) | Color coding of write-through information in direct viewing bistable storage CRT display | |
| JP2005158634A (en) | Display device | |
| JP2795184B2 (en) | Display device | |
| CA1161963A (en) | Two color write-through direct-viewing storage tube | |
| JPS6313186B2 (en) | ||
| JP3042442B2 (en) | Fluorescent display | |
| JPH0329244A (en) | Panel unit for display panel | |
| WO2001011646A2 (en) | Cathodoluminescent flat panel displays with reduced electron scattering and improved luminance uniformity | |
| CA1167511A (en) | Bistable storage target having an admixture of two phosphor particles and a layer of nonluminescent material |