WO1981003581A1 - Cathode ray tube for a light source - Google Patents

Cathode ray tube for a light source Download PDF

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Publication number
WO1981003581A1
WO1981003581A1 PCT/JP1981/000120 JP8100120W WO8103581A1 WO 1981003581 A1 WO1981003581 A1 WO 1981003581A1 JP 8100120 W JP8100120 W JP 8100120W WO 8103581 A1 WO8103581 A1 WO 8103581A1
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WO
WIPO (PCT)
Prior art keywords
cathode ray
ray tube
light source
light
phosphor
Prior art date
Application number
PCT/JP1981/000120
Other languages
French (fr)
Japanese (ja)
Inventor
H Kobayashi
Original Assignee
Mitsubishi Electric Corp
H Kobayashi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP55072383A external-priority patent/JPS601733B2/en
Priority claimed from JP7706480A external-priority patent/JPS601734B2/en
Application filed by Mitsubishi Electric Corp, H Kobayashi filed Critical Mitsubishi Electric Corp
Publication of WO1981003581A1 publication Critical patent/WO1981003581A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00Cathode ray tubes; Electron beam tubes
    • H01J31/08Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00Cathode-ray or electron-stream lamps
    • H01J63/06Lamps with luminescent screen excited by the ray or stream

Definitions

  • the present invention particularly relates to a cathode ray tube for a light source, which constitutes a pixel of a huge display device.
  • a huge display device for displaying an advertisement image on an electronic display board of a baseball stadium, a rooftop or a wall of a building, and the like a large number of light bulbs are arranged.
  • the image is formed by selectively blinking the image.
  • the current and the emission intensity are not linear, and depend on the applied current.
  • the cathode ray was used as the light source of the display device.
  • the efficiency of converting light energy into light energy is generally
  • the cathode ray tube is about 100 0
  • the phosphor may be red, green, blue, etc.
  • the display of moving images can be performed without any obstacles.
  • the emission luminance is changed faithfully with respect to the input electrical signal.
  • the heater is turned off, as compared with the spherical type.
  • the general cathode ray tube is the color of the phosphor.
  • the emission color of the fluorescent screen of the cathode ray tube becomes white.
  • this type of display device is one of a kind.
  • Phosphor should have a body color corresponding to each emission color.
  • a pigment phosphor coated with a pigment on each phosphor particle may be used, or a fluorescent glass or a fluorescent glass may be used.
  • the color under daylight is sharpened and the contrast is increased.
  • This invention is a light source for a huge display device.
  • At least the face must be at specific wavelengths in the visible range.
  • FIG. 1 shows an embodiment of a light source cathode ray tube according to the present invention.
  • FIG. 2 is a diagram showing emission spectrum characteristics of the phosphor
  • FIG. 3 is a diagram showing spectral transmittance characteristics of the face glass in FIG.
  • FIG. 4 shows a spectral transmittance of a glass substrate according to another embodiment of the present invention.
  • FIG. 4 is a diagram showing excess ratio characteristics.
  • FIG. 1 shows a cathode ray tube for a light source according to the present invention.
  • This vacuum envelope (1) is a cylindrical vacuum envelope.
  • This vacuum envelope (1) has a fluorescent screen ( 2 ) on one end.
  • An electron gun ( 4 ) which has a face glass ( 3 ) attached thereto and generates a flood electron beam (described later) at the other end, and an electron gun ( The terminal that applies the required voltage to Tokyo
  • the heater, shade and grid that make up the gun ( 4 ) are one. Also, ( 9 ) is a hole provided in the center of the grid ( 8 ),
  • is a flood electron beam emitted from the electron gun ( 4 ).
  • Lot 4 ⁇ ⁇ . ⁇ , A negative voltage is applied to the cathode ( 7 ) to the grid ( 8 ), a predetermined current is applied to the heater ( 6 ), and the cathode ( 7 ) is heated and When the voltage of the pad ( 8 ) approaches the potential of the cathode (7), an electron beam ⁇ is emitted from the cathode (7) toward the phosphor screen (the electron beam ⁇ ).
  • Li Tsu diameter de (8) central to providing et a hole in the (9), I by the conditions such as the interval and an anode voltage of grayed and Li Tsu de (8) and the cathode (7), '
  • the fluorescent screen ( 2 ) is illuminated as a non-focused beam with a predetermined spread &, causing the fluorescent screen to emit a color corresponding to the phosphor.
  • the vacuum envelope including the face glass (3) or the face glass of the cathode ray tube is Neodymium
  • Nd 2 0 3 in Tsu by the and the child be configured with gas La scan you containing Pras ⁇ dymium oxide (Pr 2 0 3) , and so on rare earth oxides, were example, if, Nd 2 0 3 is 570-585 nm and
  • a cathode ray tube for color display light source A typical phosphor is blue.
  • Z nS is: Ag, green Gd 2 0 2 S: Tb, red Y 2 0 2 S: E u - Ri Contact been found have use is the one example of these light-emitting scan Bae click preparative Le Figure 2 shows. As you can see in the figure,
  • red and red are composed of phosphors exhibiting line spectrum, for example, spectral transmission as shown in Fig. 3
  • the body has a specific or near primary color
  • the blue phosphor is combined with di d ymi urn g 1 a s s
  • the blue light transmittance is slightly inferior and the overall
  • the blue glass (this spectral transmittance characteristic is shown in Fig. 4)
  • Iron oxide Fe 2 0 3 your good beauty oxide cell Li ⁇ beam (Ce0 2 :) of acid to
  • the performance can be further improved.
  • the characteristic is as shown by the curve (I) in Fig. 4.
  • the effect of sunlight can be reduced without much lowering.
  • display devices that are used in direct sunlight can be extremely advantageous both in terms of performance and economics, since they can be expected to have remarkable effects. Become .
  • a pigment face reinforced with a body color enhanced by a pigment corresponding to the emission color of each phosphor is used. Therefore, it was confirmed that a more excellent effect was obtained.
  • the present invention it is possible to increase the absorption of external light without sacrificing the light-emitting energy of each phosphor, and particularly in daylight. It is possible to obtain good color light and contrast even under the sunlight of the sun, and the glass bulb can be composed of one type or two types of glass. For this reason, there is a very economical advantage to constructing three types of color glass.
  • This light can be applied to a huge display device that can obtain a good contrast even under the daylight sunlight.

Landscapes

  • Luminescent Compositions (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A cathode ray tube for a light source includes a fluorescent screen (2) which emits a light of a single color such as red, green, blue, etc. formed on the inner surface of a face plate (3) located at one end of a vacuum envelope (1), and an electron gun (4) mounted at the other end of the vacuum envelope (1) opposite to the fluorescent screen (2). The face plate (3) is composed of a glass containing rare earth oxides Nd2O3 and Pr2O3, thus, it is possible to obtain good color tone and contrast under the sun in the day time.

Description

明 細 書  Specification
発明の名称 Title of invention
光源用陰極線管  Cathode ray tube for light source
技術分野 Technical field
こ の発明は特に 巨大なデ ィ ス プ レ イ 装置の画素 を構成す る 光源用陰極線管に関 る も ので あ る 。 背景技術 '  The present invention particularly relates to a cathode ray tube for a light source, which constitutes a pixel of a huge display device. Background technology ''
従来、 た と えば野球場の電光表示板や、 建物の 屋上あ る いは壁面な ど に広告用画像等を表示す る 巨大デ ィ ス プ レ イ 装置は 、 多数の電球を並べ、 こ れを選択的に点滅 さ せ る こ と に よ つて画像を形成 して い る た め幾多の問題が あ った 。  Conventionally, for example, a huge display device for displaying an advertisement image on an electronic display board of a baseball stadium, a rooftop or a wall of a building, and the like, a large number of light bulbs are arranged. There are a number of problems because the image is formed by selectively blinking the image.
い く つかの例を あげ る と 、 た と えば電球の場合 は フ ィ ラ メ ン 卜 の赤熱に よ って光を発生 し てお り、 主 と し て そ の発光色は赤ない し 白橙色 を呈 して い る 。 こ の た め 、 上記電球か ら青や縁の色光を大_量 に発生 さ せ る こ と はかな り 困難で あ っ た。 ま た 、 こ の よ う な電球方式の場合、 各画像の輝度 を変調 す る た め には フ ィ ラ メ ン 卜 の印加電流 を O N — O F F す る か、 印加電流 を可変す る 等の手段に よ ら ね ばな ら ないが、 こ れ ら の電球 は周波数レ ス ポ To give some examples, for example, in the case of a light bulb, light is generated by the red heat of the filament, and its emission color is mainly red or white. It has an orange color. For this reason, it has been extremely difficult to generate a large amount of blue or fringe color light from the above-mentioned light bulb. In addition, in the case of such a light bulb method, in order to modulate the brightness of each image, the applied current of the filament is turned on and off, or the applied current is varied. By means But these bulbs have a frequency response
ン ス 力; 1 0Hz以下と き わ めて低 く 、 そ の う え印カロ電  Power: very low at 10 Hz or less.
流 と発光強度が直線的でな く 、 印加電流 .に よ って  The current and the emission intensity are not linear, and depend on the applied current.
発光色 自体が変って し ま う 問題な どがあ り 、 中間  There is a problem that the emission color itself may change.
調の表示や任意の色光を合成す る 力 ラ ー表示等に  Display of tone and power color display to synthesize any color light
供す る に も 困難がつ き ま とって いた。 さ ら に、 こ Difficulty had been reached to provide. In addition,
の よ う な 巨大ディ ス プ レ イ 装置に使用 さ れ る 電球  Bulbs used in large display devices such as
は一般に 1 0 W以上の も のであ る た め、 数万個以上  Are generally more than 10 W, so tens of thousands
が並べ ら れ る と そ の消費電力や電球の発熱が多大 Power consumption and heat generation of the bulb
な も の と な る な どの 問題が あ った 。 There was a problem, such as something to do.
そ こ で、 デ ィ ス プ レ イ 装置の光源 と し て陰極線  Therefore, the cathode ray was used as the light source of the display device.
管を用い、 赤 , 緑 , 青等の単色蛍光面を持 ·つ小型 Uses a tube and has a monochromatic phosphor screen of red, green, blue, etc.
陰極線管を多数並べ、 所望の画像を表示す る よ う Arrange a number of cathode ray tubes to display the desired image
に し た も の で、 こ れに よ れ ば、 電気エ ネ ル ギ ー を According to this, the electric energy was
光エ ネ ル ギ ー に変換す る 効率が、 一般に電球を 1 0 The efficiency of converting light energy into light energy is generally
i-m/^ と す る と 、 陰掭線管は約 1 0 0 ψ で電—球  Assuming i-m / ^, the cathode ray tube is about 100 0
に比べて 1 桁程度良い。 また、 陰極線管を用 い る One order of magnitude better than. Also use a cathode ray tube
場合に一は、 そ の蛍光体に赤 , 緑 , 青を始め と して In some cases, the phosphor may be red, green, blue, etc.
各種の発光色の も のが あ る た め、 任意の発光色の Since there are various emission colors,
光源 を作 る こ と が 出来 る の みな ら ず、 周波数レ スNot only can you create a light source, but also
.し' .、 Α 一 I Λ . " · " 0 ポ ン ス も かな り 良 い も のが容易に得 ら れ る た め、 し ', Α 一 IΛ. "·" 0 Because a good thing can be easily obtained,
動画の表示 も 何 ら 障害な く 行な う こ と がで き る 。 The display of moving images can be performed without any obstacles.
さ ら に入力電気信号に対して忠実 に発光輝度を変 In addition, the emission luminance is changed faithfully with respect to the input electrical signal.
化 さ せ る こ と がで き る ので中間色の再現に も 最適 Ideal for reproducing intermediate colors as it can be
であ る 。 ま た、 フ ィ ラ メ ン ト 電流を変化 さ せ る 電 It is. Also, the electric current that changes the filament current
球式に く ら ベて、 陰極線管の場合に は ヒ ー タ の消 In the case of a cathode ray tube, the heater is turned off, as compared with the spherical type.
耗が き わ めて少ない.ので寿命の面で も かな り 有利 Very low wear, which is very advantageous in terms of life
と な る 。  It becomes.
し か し なが ら 、 一般の陰極線管は蛍光体の 体色  However, the general cathode ray tube is the color of the phosphor.
の ほ と ん どが 白っ ぽ く 、 そ の光反射率 も ほ ぼ 1 に Most of them are whitish, and their light reflectance is almost 1.
近 く 、 ま た陰極線管の フ ヱ 一 ス ガ ラ ス 都は光透過 Close to the cathode ray tube
率の高い透.明ガ ラ ス で作 られ る の が普通で あ り 、 Highly transparent, usually made of light glass,
太陽光線が フ ヱ 一 ス部に入射し 、 蛍光体部を照射 Sunlight impinges on the phosphor and irradiates the phosphor
する こ と に よ り 、 陰極線管の蛍光面の発光色が白 By doing so, the emission color of the fluorescent screen of the cathode ray tube becomes white.
っぽ く な って コ ン ト ラ ス 卜 を失す る こ と 力; あ る 。 There is power to lose contrast when it comes to being like.
し たが って、 こ の種の ディ ス プ レ イ 装置は 、 そ一の Therefore, this type of display device is one of a kind.
設置目 的、 設置場所等の関係上白昼の太陽光照射 Due to installation purpose, installation location, etc., sunlight irradiation in daylight
下において も 、 コ ン 卜 ラ ス 卜 を有す る よ う にす る Even underneath, have a contrast
必要が あ る 。 こ れの対応策の一つ と し て、 使用 す There is a need . Use one of these measures
る蛍光体に各発光色に対応 した体色を持たせ るべ Phosphor should have a body color corresponding to each emission color.
ΟΓ Ι ΟΓ Ι
丁0 く 、 各蛍光体粒子に顔料を被覆 さ せ た ピ グ メ ン 卜 フ ォ ス フ ァ を使用 し た り 、 フ エ 一 ス ガ ラ ス や フ エ D0 In addition, a pigment phosphor coated with a pigment on each phosphor particle may be used, or a fluorescent glass or a fluorescent glass may be used.
— ス ガ ラ ス を含む真空外囲器に色をつ け る等の手  — Hands, for example, to color vacuum envelopes containing glass
段に よ って 、 昼光下での色彩を鮮明に し、 コ ン 卜 . Depending on the step, the color under daylight is sharpened and the contrast is increased.
ラ ス 卜 の増大を図 る .試み力;な さ れてい る 。 しカ し、 これ ら の色ガ ラ ス を それぞれの原色に合わせた'ガ  Try to increase the number of rusts. Then, these color glasses are matched to each primary color.
ラ ス で構成す る には、 3 種類の別 々のガ ラ ス を用 Three separate glasses are used to construct the glass.
意 しな けれ ばな ら ず、 コ ス ト 的に問題力;あっ た。 I had to take care of it, and it was costly.
発明の開示 Disclosure of the invention
こ の発明は 巨大なデ ィ スプ レ イ 装置の光源 と し  This invention is a light source for a huge display device.
て陰極線管を用い、 そ の陰極線管の真空外囲器の Using a cathode ray tube, and the vacuum envelope of the cathode ray tube
少な く と も フ ェ ー ス部 を可視域で特定の波長の み At least the face must be at specific wavelengths in the visible range.
に 吸収特性 を示す希土類の酸化物 を混入 した ガ ラ Mixed with rare earth oxides exhibiting absorption characteristics
ス材料で構成す る こ と に よ っ て 、 一種類 も し く は Depending on the type of material used,
二種類の ガ ラ ス で蛍光体の発光ヱ ネ ルギ 一 を損 う Two types of glass impair the luminescence of the phosphor
こ と な く 外光を 吸収 さ せ る こ と に よ って、 昼光-下 By absorbing external light without difficulty, daylight-lower
において も 色彩を鮮明に し、 コ ン ト ラ ス ト を 向上 Also enhances contrast and improves color contrast
さ せ る こ と が で き る 。 You can do it.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 図 は こ の発明 の光源用陰掭線管の一実施例  FIG. 1 shows an embodiment of a light source cathode ray tube according to the present invention.
、ノ小 \, .:.ο を示す断面図 、 第' 2 図は蛍光体の発光 ス ぺ ク ト ル 特性を示す図 、 第 3 図 は第 1 図に お け る フ ェ ー ス ガ ラ ス の分光透過率特性を示す図、 第 4 図は こ の 発明の他の実施例であ る フ ヱ 一 ス ガ ラ ス の分光透 , No small \,.:. Ο FIG. 2 is a diagram showing emission spectrum characteristics of the phosphor, and FIG. 3 is a diagram showing spectral transmittance characteristics of the face glass in FIG. FIG. 4 shows a spectral transmittance of a glass substrate according to another embodiment of the present invention.
過率特性を示す図で あ る 。 FIG. 4 is a diagram showing excess ratio characteristics.
発 明を 実施す る た め の最良の形態 Best mode for carrying out the invention
第 1 図 は こ の発明 によ る 光源用陰極線管の一実  FIG. 1 shows a cathode ray tube for a light source according to the present invention.
施例を示し、 図に おい て、 (1) は管内を 真空に維持 In the example shown, (1) maintains the vacuum inside the pipe.
す る た め のた と え ば筒状の真空外囲器であ る 。 こ の真空外囲器(1)は 、 一端.都の内面に蛍光面(2)が被 For example, it is a cylindrical vacuum envelope. This vacuum envelope (1) has a fluorescent screen ( 2 ) on one end.
着さ れた フ ェ ー ス ガ ラ ス (3)を有 し、 他端部 に 後述 の フ ラ ッ ド電子 ビ ー ム を発生す る電子銃(4) 、 お よ び電子銃( の各都に所要の電圧を 印加す る端子を An electron gun ( 4 ), which has a face glass ( 3 ) attached thereto and generates a flood electron beam (described later) at the other end, and an electron gun ( The terminal that applies the required voltage to Tokyo
持つ と と も に 、 真空外囲器(1) を 閉塞する ス テ ム 部 Holds and closes the vacuum envelope (1).
)を有す る 。 (6) , (7)およ び(8)は そ れぞれ上記電子 ). ( 6 ), (7) and ( 8 ) are the above-mentioned electrons, respectively.
銃(4)を構成す る ヒ ー タ 、 陰砾お よ びグ リ ッ ド で一あ る 。 ま た 、 (9) は グ リ ッ ド (8)の 中央に設け ら れた穴、 The heater, shade and grid that make up the gun ( 4 ) are one. Also, ( 9 ) is a hole provided in the center of the grid ( 8 ),
ω は電子銃(4)か ら 発射 され る フ ラ ッ ド電子 ビ ー ム で あ る 。 こ の陰極線管の動作につい て説明 す る と 、 ま ず、 ω is a flood electron beam emitted from the electron gun ( 4 ). To explain the operation of this cathode ray tube, first,
くじ 4ひ ο:·.ρΐ 、 グ リ ッ ド (8) に陰極(7) に対 して負の電圧を 与え る と と も に、 ヒ ー タ (6)に所定の電流を与え、 陰極(7)を 加熱 して グ リ ッ ド (8)電圧を陰極(7)電位に近づけ る と 、 陰極(7)か ら 電子ビ ー ム α が蛍光面( に 向けて 発射 さ れ る 。 こ の電子 ビ ー ム αο) は グ リ ッ ド (8)の中 央に設け ら れた穴(9) の直径、 グ リ ツ ド(8) と 陰極(7) と の間隔 およ び陽極電圧等の諸条件によ って 、 '所 定の拡が り & を も つ非集束 ビー ム と な っ て蛍光面 (2)に照射 さ れ、 蛍光面 ) をそ の蛍光体に応 じた色 に発光 させ る 。 Lot 4 ο: · .ρΐ, A negative voltage is applied to the cathode ( 7 ) to the grid ( 8 ), a predetermined current is applied to the heater ( 6 ), and the cathode ( 7 ) is heated and When the voltage of the pad ( 8 ) approaches the potential of the cathode (7), an electron beam α is emitted from the cathode (7) toward the phosphor screen (the electron beam αο). Li Tsu diameter de (8) central to providing et a hole in the (9), I by the conditions such as the interval and an anode voltage of grayed and Li Tsu de (8) and the cathode (7), 'The fluorescent screen ( 2 ) is illuminated as a non-focused beam with a predetermined spread &, causing the fluorescent screen to emit a color corresponding to the phosphor.
こ こ で 、 陰極線管の フ ェ ー ス ガ ラ ス (3) も し く は フ エ 一 ス ガ ラ ス )を含む真空外囲器は)を Neodymium  Here, the vacuum envelope including the face glass (3) or the face glass of the cathode ray tube is Neodymium
o  o
oxide (Nd203 )、 Pras^dymium oxide (Pr203 ) な ど の 希土類酸化物を含有す る ガ ラ ス で構成する こ と に よ っ て 、 た と えば、 Nd203は 570〜585 nm お よ びoxide (Nd 2 0 3), in Tsu by the and the child be configured with gas La scan you containing Pras ^ dymium oxide (Pr 2 0 3) , and so on rare earth oxides, were example, if, Nd 2 0 3 is 570-585 nm and
513 nm、 Pr203 470~480 nm 付近 ίこ れぞれ局-部 的な光吸収特性を示し、 両者を含んだガ ラ ス は一 般に d i dymium glass と い われて 第 3 図の グ ラ フ の よ う な分光透過率特性を示す も の と な る 。 513 nm, Pr 2 0 3 470 ~ 480 nm near ί this respectively stations - shows a section specific light absorption characteristics, including both gas la scan the third view in crack had a di dymium glass in General It exhibits a spectral transmittance characteristic like a graph.
と こ ろ で、 カ ラ ー デ ィ ス プ レ イ 光源用陰極線管の 蛍光体と し て は、 そ の代表的な も の と して 、 青色 At this point, we have developed a cathode ray tube for color display light source. A typical phosphor is blue.
は Z nS: Ag、緑色は Gd2 02 S : Tb、 赤色は Y202 S: E u - が用 い ら れて お り 、 これ ら の発光ス ペ ク ト ル の一 例を第 2 図に示す。 図 で明 ら かな よ う に、 特に縁 Z nS is: Ag, green Gd 2 0 2 S: Tb, red Y 2 0 2 S: E u - Ri Contact been found have use is the one example of these light-emitting scan Bae click preparative Le Figure 2 shows. As you can see in the figure,
お よ び赤色は ラ イ ン ス ぺ ク ト ル を示す蛍光体で構 ' 成さ れ る た め、 た と え ば第 3 図の よ う な分光透過 Since red and red are composed of phosphors exhibiting line spectrum, for example, spectral transmission as shown in Fig. 3
率を持つガ ラ ス を組合せて使用 すれ ば、 一種類の If you use a combination of glasses with different rates,
ガ ラ ス で蛍光体の発光ヱ ネ ルギーを犠性にす る こ A glass that sacrifices the luminous energy of a phosphor
と な く 外光を吸収する こ と がで き る し、 ガ ラ ス 自 It can absorb external light without any problems, and the glass itself
体が特定の原色 も し く はそ れに近い体色を.持た な The body has a specific or near primary color
いので、 各原色の色ガ ラ ス を使用す る 場合に く ら When using color glass of each primary color,
ベて、 明 る い場所では常に その ガ ラ スの体色によ In bright places, it always depends on the color of the glass.
り 、 フ ェ ー ス 面が各原色を呈 し てい る と い う こ と  That the surface presents each primary color
がな く 、 コ ン ト ラ ス 卜 、 色純度共に改善する こ と And improve both contrast and color purity.
力; で き る 。 Power;
な お、 d i d ymi urn g 1 a s s に青色蛍光体を組合-せ  The blue phosphor is combined with di d ymi urn g 1 a s s
た場合、 青色の光透過率が やや劣 り 、 全体の コ ン In this case, the blue light transmittance is slightly inferior and the overall
ト ラ ス 卜 も 低下す る ^点が生ず る 。 こ のた め 、 青  The trust is also reduced. Because of this, blue
について は と えば酸化コバル 卜 〔C o 306;) を含有 Oxidized cobalt Bok Invite example DOO for [C o 3 0 6;) containing
す る青色ガ ラ ス ( こ の分光透過率特性 を第 4 図 の The blue glass (this spectral transmittance characteristic is shown in Fig. 4)
crn 曲線(1)で示す。 ) を用い、 縁お よ び赤につい て は crn Shown by curve (1). ) For rims and red
前述の Nd203 と Pr203を含有す る didymi urn glass Containing Nd 2 0 3 and Pr 2 0 3 of the aforementioned didymi urn glass
に酸化鉄 (Fe203 ) お よ び酸化セ リ ゥ ム (Ce02:)の酸 Iron oxide (Fe 2 0 3) your good beauty oxide cell Li © beam (Ce0 2 :) of acid to
化物を適量混入 さ せた ガ ラ ス で構成す る こ と に よ Of glass containing a suitable amount of
つて さ ら に、 性能の 向上を 図 る こ と が で き る 。 In addition, the performance can be further improved.
すな わ ち 、 Nd203 は 570〜585nmおよ び 5 l 3 nm、 Pr203は 470〜480 nm付近にそれぞれ局部的に光吸 Chi I sand, Nd 2 0 3 is 570~585nm and 5 l 3 nm, Pr 2 0 3 are each locally around four hundred and seventy to four hundred eighty nm Hikari吸
収特性を示 し 、 Fe203 お よ び Ce02の合成された も The yield characteristics shows, was also the synthesis of Fe 2 0 3 your good beauty Ce0 2
のは短波長側の光吸収を増大さ せる 作用が あ る 。 This has the effect of increasing light absorption on the short wavelength side.
これ ら の酸化物 を合成 し た ガ ラ ス の分光透過率特  The spectral transmittance characteristics of the glass synthesized from these oxides
性は第 4 図の 曲線(I)に示すよ う にな り 、 こ の よ う The characteristic is as shown by the curve (I) in Fig. 4.
な-ガ ラ ス に第 2 図に示 し たよ う な発光 ス ぺ ク ト ル Light-emitting spectrum as shown in Fig. 2
を有す る 蛍光体を組合せて使用すれば、 緑お よ び  Green and green when used in combination with phosphors
赤色について は蛍光体の発光ヱ ネ ルギ 一の透過を For red, the emission of the phosphor
あ ま り 低下 さ せずに太陽光の影響 を軽減で き る 。 The effect of sunlight can be reduced without much lowering.
特に緑色の場合 には、 単色の色ガ ラ ス を使用 し-た Especially in the case of green, a single color glass was used.
場合に く らベて も 局部的な波長域 しか透過 し ない In some cases, only a local wavelength band is transmitted
た め に、 外光の影響に対 す る効果は大 き い。 ま た、 Therefore, the effect on the influence of external light is great. Also,
d idymium glass で 3 色共構成す る場合に く らべ d When the three colors are composed with idymium glass,
て も 、 各発光色に対す る効率、 外光の影響の改 善 Even better, improve the efficiency of each emission color and the effect of external light
じ 一::: ΡΙJi 1 ::: ΡΙ
,-.;/., 、 ϋ 、' ί の度合な ど、 い ずれ も 格段の効果が期待で き る の で、 特に直射 日光下で使用 する ディ ス プ レ イ 装置' におい て性能的に も 、 経済的に も き わ めて有利に な る 。 ,-.; /.,, Ϋ, 'ί In particular, display devices that are used in direct sunlight can be extremely advantageous both in terms of performance and economics, since they can be expected to have remarkable effects. Become .
さ ら に、 蛍光体 と し て、 そ れ ぞれ の蛍光体の発 光色に対応 した顔料に よって体色を強化 し た ビ グ メ ン 卜 フ ァ ス フ ァ を使用す る こ と に よ って一層す ぐれた効果を得る こ と を確認 し た。  In addition, as a phosphor, a pigment face reinforced with a body color enhanced by a pigment corresponding to the emission color of each phosphor is used. Therefore, it was confirmed that a more excellent effect was obtained.
ま た、 Nd203 お よ び Pr203 の他に 、 520 nm 付近 の波長域で局部的に大き な光吸収特性 を示す Erbium oxide ( Er203:)を混入すれば、 さ ら に こ.の発明の効 果を増大さ せる こ と がで き る 。 Also, in addition to the Nd 2 0 3 Contact good beauty Pr 2 03, if mixed Erbium oxide (Er 2 0 3 :) showing a locally large light absorption properties in a wavelength range around 520 nm, and et al The effect of the present invention can be increased.
以上説明 した よ う に、 こ の発明によ れば各蛍光 体の発光エ ネ ルギ ー を犠性に す る こ と な く 外光の 吸収を増大さ せ る こ と が で き 、 特に白昼の太陽光 下において も良好な色光 と コ ン ト ラ ス 卜 を得 る こ と が可能 と な り 、 か つ ガ ラ スバ ル ブ も 一種類 も し く は二種類の ガ ラ ス で構成でき る た め、 わ ざわ ざ 3 種類の色ガ ラ ス で構成す る場合に く らベて非常 に経済的に利点 が あ る 。 産業上の利用可能性 As described above, according to the present invention, it is possible to increase the absorption of external light without sacrificing the light-emitting energy of each phosphor, and particularly in daylight. It is possible to obtain good color light and contrast even under the sunlight of the sun, and the glass bulb can be composed of one type or two types of glass. For this reason, there is a very economical advantage to constructing three types of color glass. Industrial applicability
こ の 明 は白昼の太陽光下に おいて も 良好な コ ン 卜 ラ ス 卜 を得る 巨大なデ ィ ス プ レ イ 装置な どに 適用 で き る 。  This light can be applied to a huge display device that can obtain a good contrast even under the daylight sunlight.

Claims

請 求 の 範 囲 The scope of the claims
)真 外囲器 と 、 こ の真空外囲器の一端部に位 置する フ ヱ 一 ス 部内面に形成さ れ、 赤 , 緑 , 青等 の単色の発光色 を呈す る 蛍光面 と 、 こ の蛍光面に 対向す る よ う に上記真空外囲器の他端部に配置 さ れ、 フ ラ ッ ド ビ ー ム を発生す る 電子銃を備 え、 上 記真空外囲器の少 く と も フ ェ ー ス部を 、 Nd 20 3 お よ び Pr 2 03 の希土類配化物を 含む ガ ラ ス.材で構成 した こ と を特徵と す る 光源用陰極線管。 A) a true envelope and a phosphor screen formed on the inner surface of a bush located at one end of the vacuum envelope and emitting a single color of light such as red, green, or blue. An electron gun for generating a flood beam is provided at the other end of the vacuum envelope so as to face the fluorescent screen of the above, and a small number of the vacuum envelopes described above are provided. and off the E over the scan unit, Nd 2 0 3 your good beauty Pr 2 0 gas La nest. light source for a cathode ray tube that you have configured shall be the Toku徵in the material, including 3 of the rare earth distribution product also.
(2)請求の範囲第(1)項において 、 真空外囲器の少 く と も フ ェ ー ス 部に、 Fe 203 お よ び C e02の酸化物 を混入し た こ と を特徴 と す る光源用陰砾線管。 (2) in a range subsection (1) according to the least for the full E over scan portion also of the vacuum envelope, and characterized that you mixed with Fe 2 03 Contact good beauty C e0 2 oxide Cathode ray tube for light source.
(3)請求の範囲第(1)項 ま た は第(2)項におい て蛍光 面を ビ グ メ ン 卜 フ ォ ス フ ァ で形成 した こ と を特徵 と す る光源用 陰極線管。 ( 3 ) A cathode ray tube for a light source, characterized in that the phosphor screen is formed by a big phosphor according to claim (1) or (2).
PCT/JP1981/000120 1980-05-29 1981-05-29 Cathode ray tube for a light source WO1981003581A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP80/72383 1980-05-29
JP55072383A JPS601733B2 (en) 1980-05-29 1980-05-29 Cathode ray tube for light source
JP7706480A JPS601734B2 (en) 1980-06-05 1980-06-05 display device

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DE4307614C2 (en) * 1993-03-08 1999-10-14 Bernhard Gerth Color information display system with electron beam display tube

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Publication number Priority date Publication date Assignee Title
JPS5242361A (en) * 1975-09-30 1977-04-01 Mitsubishi Electric Corp Cathod ray tube

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GB388560A (en) * 1931-02-11 1933-03-02 Ulrich Wolfgang Doering Improvements in or relating to light generating vacuum tubes
US2923846A (en) * 1956-12-03 1960-02-02 Philco Corp Electrical systems
NL111221C (en) * 1959-01-02
US3527711A (en) * 1963-04-16 1970-09-08 Owens Illinois Inc Process for preparing rare earth doped luminescent silica glass
US3323889A (en) * 1963-04-16 1967-06-06 Owens Illinois Inc Method for increasing scratch resistance of a glass surface with a pyrolyzing treatment and a coating of an olefin polymer
FI41309C (en) * 1968-06-17 1969-10-10 Airam Ab Oy Lamp with an electric discharge tube with a selectively absorbing outer shell
US4336480A (en) * 1979-03-24 1982-06-22 Mitsubishi Denki Kabushiki Kaisha Cathode ray tube

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Publication number Priority date Publication date Assignee Title
JPS5242361A (en) * 1975-09-30 1977-04-01 Mitsubishi Electric Corp Cathod ray tube

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Title
Shikisai Kagaku Kyokai-hen, "Shikisai Kagaku Handbook", 1966-6-20; & Nankodo Kabushiki Kaisha, P. 543 - 544, "f. Sonota no Kashiiki-yo Filter" *

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