JPH04355035A - Light emitting element - Google Patents
Light emitting elementInfo
- Publication number
- JPH04355035A JPH04355035A JP12801491A JP12801491A JPH04355035A JP H04355035 A JPH04355035 A JP H04355035A JP 12801491 A JP12801491 A JP 12801491A JP 12801491 A JP12801491 A JP 12801491A JP H04355035 A JPH04355035 A JP H04355035A
- Authority
- JP
- Japan
- Prior art keywords
- center
- phosphor
- electrode
- opening
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 33
- 239000011159 matrix material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は競技場等において使用
される大画面表示装置を構成するための発光素子に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting element for constructing a large screen display device used in stadiums and the like.
【０００２】0002
【従来の技術】図２は従来の発光素子の斜視図及び分解
斜視図である。１ａはガラス等の表示部で、陽極（図示
せず）が設けられそれに複数の蛍光体９が塗布されてい
る。１ｂはスペーサ、１ｃは各種制御電極が設けられた
ガラス等の基板（後部パネル）である。これらの１ａ，
１ｂ，１ｃは発光素子の真空容器１を構成する。２は基
板１ｃに設けられた線状カソード、３は第１の制御電極
（走査電極）、４は第２の制御電極（データ電極）であ
る。５及び６は前記第１及び第２の制御電極３，４をそ
れぞれ行方向及び列方向に共通に接続する配線パターン
、７は蛍光体９ごとに設けられた開口部８を有する遮蔽
電極、１０は基板１ｃに設けられた排気部である。2 is a perspective view and an exploded perspective view of a conventional light emitting device. Reference numeral 1a denotes a display section made of glass or the like, which is provided with an anode (not shown) and coated with a plurality of phosphors 9. 1b is a spacer, and 1c is a substrate (rear panel) made of glass or the like on which various control electrodes are provided. These 1a,
1b and 1c constitute a vacuum container 1 for a light emitting element. 2 is a linear cathode provided on the substrate 1c, 3 is a first control electrode (scanning electrode), and 4 is a second control electrode (data electrode). 5 and 6 are wiring patterns that commonly connect the first and second control electrodes 3 and 4 in the row and column directions, respectively; 7 is a shielding electrode having an opening 8 provided for each phosphor 9; and 10 is an exhaust section provided on the substrate 1c.
【０００３】図３は発光素子の側面断面図で、蛍光体と
開口部との位置関係を示したものである。中央部及び周
辺部共に、蛍光体の中心と開口部の中心とが同一垂線１
２上にある。８ａは周辺部の開口部、８ｂは中央部の開
口部で、９ａは周辺部の蛍光体、９ｂは中央部の蛍光体
である。また、１１ａは周辺部の熱電子の流れの中心で
、１１ｂは中央部の熱電子の流れの中心である。FIG. 3 is a side sectional view of a light emitting element, showing the positional relationship between the phosphor and the opening. The center of the phosphor and the center of the opening are the same perpendicular line 1 in both the central and peripheral parts.
It's on top of 2. 8a is a peripheral opening, 8b is a central opening, 9a is a peripheral phosphor, and 9b is a central phosphor. Further, 11a is the center of the flow of thermionic electrons in the peripheral part, and 11b is the center of the flow of thermionic electrons in the central part.
【０００４】図４は第１及び第２の制御電極３，４の配
置及び配線を示す。Ｓ１〜Ｓ４は列方向に共通に接続さ
れた第１の制御電極の引き出し部、Ｄ１〜Ｄ４は行方向
に共通に接続された第２の制御電極４の引き出し部であ
る。FIG. 4 shows the arrangement and wiring of the first and second control electrodes 3 and 4. S1 to S4 are extended portions of the first control electrodes commonly connected in the column direction, and D1 to D4 are extended portions of the second control electrode 4 commonly connected in the row direction.
【０００５】図５は第１及び第２の制御電極３，４の各
引き出し部Ｓ１〜Ｓ４、Ｄ１〜Ｄ４に印加する信号のタ
イミングを示している。FIG. 5 shows the timing of signals applied to the lead-out portions S1 to S4 and D1 to D4 of the first and second control electrodes 3 and 4, respectively.
【０００６】図６は第１及び第２の制御電極３，４の電
位と電子の流れ１１を後述する■〜■の場合についてそ
れぞれ説明している。FIG. 6 illustrates the potentials of the first and second control electrodes 3 and 4 and the electron flow 11 for cases ① to ②, which will be described later.
【０００７】図７は引き出し部Ｓ１〜Ｓ４、Ｄ１〜Ｄ４
と画素（蛍光体）Ｐ１１〜Ｐ４４との関係を示している
。FIG. 7 shows the drawer sections S1 to S4 and D1 to D4.
The relationship between and pixels (phosphors) P11 to P44 is shown.
【０００８】次に動作について説明する。この種の表示
装置の基本原理はカソードから放出された熱電子を加速
し、陽極に衝突させることにより、陽極面に塗布された
蛍光体を励起し、発光せしめるものである。Next, the operation will be explained. The basic principle of this type of display device is to accelerate thermoelectrons emitted from the cathode and cause them to collide with the anode, thereby exciting the phosphor coated on the anode surface and causing it to emit light.
【０００９】図６において、線状カソード２からの熱電
子は第１の制御電極（以下走査電極という）３と第２の
制御電極（以下データ電極という）４の電位の組み合わ
せにより、次のように振舞う。それぞれ図６に対応付け
て説明する。In FIG. 6, thermoelectrons from the linear cathode 2 are generated as follows due to the combination of potentials of the first control electrode (hereinafter referred to as scanning electrode) 3 and the second control electrode (hereinafter referred to as data electrode) 4. Behave. Each will be explained in association with FIG. 6.
【００１０】■走査電極３及びデータ電極４が共にカソ
ード電位に対して正の場合■ When both the scanning electrode 3 and the data electrode 4 are positive with respect to the cathode potential
【００１１】データ電極４の正電位により線状カソード
２から放出した熱電子は、走査電極３の電位により偏向
され、所定の開口部８を通過し、表示部１ａの陽極に達
し蛍光体９を発光せしめる。Thermionic electrons emitted from the linear cathode 2 due to the positive potential of the data electrode 4 are deflected by the potential of the scanning electrode 3, pass through a predetermined opening 8, reach the anode of the display section 1a, and touch the phosphor 9. Make it emit light.
【００１２】■走査電極３が正で、データ電極４が負の
場合■When the scan electrode 3 is positive and the data electrode 4 is negative
【００１３】線状カソード２に近いデータ電極４の負電
位により線状カソード２近傍の電位は負になり、熱電子
の放出が抑制される。このため、蛍光体９は発光しない
。Due to the negative potential of the data electrode 4 near the linear cathode 2, the potential near the linear cathode 2 becomes negative, suppressing the emission of thermoelectrons. Therefore, the phosphor 9 does not emit light.
【００１４】■走査電極３が負で、データ電極４が正の
場合■When the scan electrode 3 is negative and the data electrode 4 is positive
【００１５】次の２通りの場合がある。There are two cases as follows.
【００１６】（ａ）他方の走査電極３が正の場合(a) When the other scanning electrode 3 is positive
【００
１７】線状カソード２から放出された熱電子は走査電極
３の電位により他方の走査電極３側へ偏向され、蛍光体
は発光しない。00
17] The thermoelectrons emitted from the linear cathode 2 are deflected toward the other scanning electrode 3 by the potential of the scanning electrode 3, and the phosphor does not emit light.
【００１８】（ｂ）他方の走査電極も負の場合(b) When the other scanning electrode is also negative
【００１
９】データ電極４の電位は正であるが、データ電極４の
面積が小さいため、両側の走査電極３の負の電位の影響
により、線状カソード２近傍の電位は負となり、熱電子
の放出が抑制され、蛍光体９は発光しない。001
9] The potential of the data electrode 4 is positive, but since the area of the data electrode 4 is small, the potential near the linear cathode 2 becomes negative due to the influence of the negative potential of the scanning electrodes 3 on both sides, causing the emission of thermoelectrons. is suppressed, and the phosphor 9 does not emit light.
【００２０】■走査電極３、データ電極４ともに負の場
合■When both scan electrode 3 and data electrode 4 are negative
【００２１】線状カソード２近傍の電位は負になり、熱
電子の放出が抑制され、蛍光体９は発光しない。The potential near the linear cathode 2 becomes negative, the emission of thermoelectrons is suppressed, and the phosphor 9 does not emit light.
【００２２】この結果、図４の配線関係と、図７の画素
（蛍光体）Ｐ１１〜Ｐ４４の配列との関係により、正の
電位が印加される走査電極３及びデータ電極４の交点に
位置する蛍光体９が発光することになる。引き出し部Ｓ
１に信号が印加された場合、画素Ｐ１１〜Ｐ１４が選択
され、これらはデータ電極４の引き出し部Ｄ１〜Ｄ４の
電位に従って発光する。次に、引き出し部Ｓ２に信号が
印加されると、画素Ｐ２１〜Ｐ２４が選択され、やはり
データ電極４の電位に従って蛍光体９が発光する。以上
によれば、図４に示すように、走査電極３に逐次走査信
号を印加し、データ電極４に任意のデータ信号を印加す
ることによって、任意の画素表示を得ることができる。As a result, due to the wiring relationship shown in FIG. 4 and the arrangement of pixels (phosphors) P11 to P44 shown in FIG. The phosphor 9 will emit light. Drawer part S
1, the pixels P11 to P14 are selected and emit light according to the potentials of the lead-out portions D1 to D4 of the data electrode 4. Next, when a signal is applied to the lead-out portion S2, the pixels P21 to P24 are selected, and the phosphor 9 emits light according to the potential of the data electrode 4. According to the above, as shown in FIG. 4, by sequentially applying a scanning signal to the scanning electrode 3 and applying an arbitrary data signal to the data electrode 4, an arbitrary pixel display can be obtained.
【００２３】[0023]
【発明が解決しようとする課題】従来の発光素子の蛍光
体９と開口部８との位置関係は図３のように構成されて
いるので、周辺部ではスペーサ１ｂのチャージアップに
よる電位の影響によって熱電子の流れが真空容器１の外
側に偏向し、熱電子の流れの中心１１ａが蛍光体９の中
心に衝突しない恐れがあり、周辺部の蛍光体９ａと中央
部の蛍光体９ｂの発光輝度が異なる等の問題があった。[Problems to be Solved by the Invention] Since the positional relationship between the phosphor 9 and the opening 8 of the conventional light emitting element is configured as shown in FIG. The flow of thermionic electrons may be deflected to the outside of the vacuum container 1, and the center 11a of the flow of thermionic electrons may not collide with the center of the phosphor 9, causing the luminance of the phosphor 9a at the periphery and the phosphor 9b at the center to decrease. There were problems such as different
【００２４】この発明は上記のような課題を解消するた
めになされたものであり、周辺部の蛍光体の中心に熱電
子の流れの中心を衝突させることのできる発光素子を得
ることを目的とする。The present invention was made in order to solve the above-mentioned problems, and its purpose is to obtain a light-emitting element in which the center of the flow of thermoelectrons can collide with the center of the phosphor in the peripheral area. do.
【００２５】[0025]
【課題を解決するための手段】この発明に係る発光素子
は、周辺部では蛍光体の中心の垂線に対して真空容器の
内側に開口部の中心を設けたものである。[Means for Solving the Problems] In the light emitting device according to the present invention, the center of the opening is provided inside the vacuum container with respect to the perpendicular line to the center of the phosphor in the peripheral portion.
【００２６】[0026]
【作用】この発明における発光素子は、周辺部において
も熱電子の流れの中心が蛍光体の中心に衝突するので、
中央部と周辺部の蛍光体の発光輝度が均一となる。[Operation] In the light emitting device of the present invention, the center of the flow of thermoelectrons collides with the center of the phosphor even in the peripheral area, so
The luminance of the phosphors in the center and the periphery becomes uniform.
【００２７】[0027]
【実施例】以下、この発明の一実施例を図について説明
する。図１においては図３と同一部分には同一符号を付
して説明を省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, parts that are the same as those in FIG. 3 are given the same reference numerals, and explanations thereof will be omitted.
【００２８】図１において、１３は周辺部の開口部８ａ
の中心の垂線であり、周辺部の蛍光体９ａの中心の垂線
１２に対して偏向距離ｄだけ真空容器１の内側にずらさ
れている。In FIG. 1, reference numeral 13 denotes an opening 8a at the periphery.
is a perpendicular line to the center of the phosphor 9a in the peripheral portion, and is shifted to the inside of the vacuum vessel 1 by a deflection distance d with respect to a perpendicular line 12 to the center of the peripheral phosphor 9a.
【００２９】次に動作について説明する。Next, the operation will be explained.
【００３０】前記データ電極４の正電位により線状カソ
ード２から放出された熱電子は、走査電極３の電位によ
り偏向され、所定の開口部８ａ，８ｂを通過する。周辺
部の開口部８ａを通過する熱電子は、スペーサ１ｂのチ
ャージアップによる電位の影響によって、真空容器１の
外側に偏向され蛍光体９ａに衝突するので、この偏向距
離ｄだけ周辺部の開口部８ａの中心の垂線１３が、蛍光
体９ａの中心の垂線１２に対して真空容器１の内側にず
らされて配置されている。このため、周辺部の熱電子の
流れの中心１１ａが蛍光体９ａの中心に衝突することが
できる。また、中央部の開口部８ｂを通過する熱電子は
、スペーサ１ｂのチャージアップによる電位に影響され
ずに蛍光体９ｂに衝突するので、蛍光体９ｂと開口部８
ｂの中心は同一垂線１２上にある。Thermionic electrons emitted from the linear cathode 2 due to the positive potential of the data electrode 4 are deflected by the potential of the scanning electrode 3 and pass through predetermined openings 8a and 8b. Thermionic electrons passing through the peripheral opening 8a are deflected to the outside of the vacuum container 1 and collide with the phosphor 9a due to the influence of the electric potential caused by the charge-up of the spacer 1b. A perpendicular line 13 at the center of the phosphor 8a is shifted toward the inside of the vacuum container 1 with respect to a perpendicular line 12 at the center of the phosphor 9a. Therefore, the center 11a of the flow of thermoelectrons in the peripheral area can collide with the center of the phosphor 9a. Furthermore, the thermoelectrons passing through the opening 8b in the center collide with the phosphor 9b without being affected by the potential due to charge-up of the spacer 1b, so that the phosphor 9b and the opening 8
The center of b is on the same perpendicular line 12.
【００３１】[0031]
【発明の効果】以上のように、この発明によれば周辺部
の開口部の中心の垂線を、蛍光体の中心の垂線に対して
真空容器の内側にずらせたので、中央部の熱電子の流れ
と同様に周辺部の熱電子の流れも、蛍光体の中心に熱電
子の流れの中心が衝突することができ、中央部と周辺部
の蛍光体の発光輝度が均一になる効果が得られる。As described above, according to the present invention, the perpendicular line of the center of the peripheral opening is shifted toward the inside of the vacuum container with respect to the perpendicular line of the center of the phosphor. Similar to the flow, the flow of thermionic electrons at the periphery can also cause the center of the flow of thermionic electrons to collide with the center of the phosphor, resulting in the effect of making the luminance of the phosphors in the center and periphery uniform. .
【図１】この発明の一実施例による発光素子の側面断面
図である。FIG. 1 is a side sectional view of a light emitting device according to an embodiment of the present invention.
【図２】従来の発光素子の斜視図及び分解斜視図である
。FIG. 2 is a perspective view and an exploded perspective view of a conventional light emitting device.
【図３】従来の発光素子の側面断面図である。FIG. 3 is a side cross-sectional view of a conventional light emitting device.
【図４】２種類の制御電極の配置及び配線を示す構成図
である。FIG. 4 is a configuration diagram showing the arrangement and wiring of two types of control electrodes.
【図５】それぞれの電極に印加する信号のタイミングを
示すタイムチャートである。FIG. 5 is a time chart showing the timing of signals applied to each electrode.
【図６】各電極の電位と電子の流れの関係を示す説明図
である。FIG. 6 is an explanatory diagram showing the relationship between the potential of each electrode and the flow of electrons.
【図７】画素の配列と電極との対応関係を示す構成図で
ある。FIG. 7 is a configuration diagram showing the correspondence between pixel arrays and electrodes.
１ 真空容器
２ 線状カソード
３，３ａ，３ｂ 第１の制御電極（走査電極）４，４
ａ，４ｂ 第２ 〃 〃 （データ電極）７
遮蔽電極
８，８ａ，８ｂ 開口部
９，９ａ，９ｂ 蛍光体
１１，１１ａ，１１ｂ 熱電子の流れの中心１２
蛍光体の中心の垂線
１３ 開口部 〃 〃1 Vacuum container 2 Linear cathode 3, 3a, 3b First control electrode (scanning electrode) 4, 4
a, 4b 2nd 〃 〃 (data electrode) 7
Shielding electrodes 8, 8a, 8b Openings 9, 9a, 9b Phosphors 11, 11a, 11b Center 12 of thermoelectron flow
Perpendicular line 13 at the center of the phosphor Opening 〃 〃
Claims (1)
ス状に配列してなる陽極と、上記陽極と対向する位置に
蛍光体と対応して設けられた線状カソードと、上記陽極
の蛍光体ごとに設けられた複数の開口部を有し、かつ上
記真空容器中央部では前記蛍光体の垂線上に上記開口部
の中心を配置するとともに周辺部では上記垂線に対して
上記真空容器の内側に上記開口部の中心をずらせて配置
した遮蔽電極と、上記線状カソードから放出した熱電子
の流れを制御する制御電極とを備えた発光素子。1. An anode comprising a plurality of phosphors arranged in a matrix in a vacuum container, a linear cathode provided at a position facing the anode in correspondence with the phosphors, and the phosphor of the anode. The vacuum container has a plurality of openings provided in each area, and the center of the opening is located on the perpendicular line of the phosphor in the central part of the vacuum container, and the center of the opening part is located on the inside of the vacuum container with respect to the perpendicular line in the peripheral part. A light emitting element comprising: a shielding electrode arranged with the center of the opening shifted from the center; and a control electrode controlling the flow of thermoelectrons emitted from the linear cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3128014A JP2758512B2 (en) | 1991-05-31 | 1991-05-31 | Light emitting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3128014A JP2758512B2 (en) | 1991-05-31 | 1991-05-31 | Light emitting element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04355035A true JPH04355035A (en) | 1992-12-09 |
| JP2758512B2 JP2758512B2 (en) | 1998-05-28 |
Family
ID=14974351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3128014A Expired - Fee Related JP2758512B2 (en) | 1991-05-31 | 1991-05-31 | Light emitting element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2758512B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253150A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Electric Corp | Display tube for light source |
| JPH01253147A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Electric Corp | Display tube for light source |
-
1991
- 1991-05-31 JP JP3128014A patent/JP2758512B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253150A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Electric Corp | Display tube for light source |
| JPH01253147A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Electric Corp | Display tube for light source |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2758512B2 (en) | 1998-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2616617B2 (en) | Flat fluorescent display | |
| JP3211271B2 (en) | Light emitting element | |
| EP0217003B1 (en) | Fluorescent display tube | |
| JP2629521B2 (en) | Electron gun and cathode ray tube | |
| JP2789754B2 (en) | Large screen display device | |
| JPH04355035A (en) | Light emitting element | |
| JP2587314B2 (en) | Light source tubes for imaging devices | |
| JP2804386B2 (en) | Light emitting element | |
| JP2956002B2 (en) | Fluorescent display | |
| JPH0634144B2 (en) | Light source unit for display device | |
| JP3104144B2 (en) | Fluorescent display | |
| JP3136550B2 (en) | Fluorescent display | |
| JP3182006B2 (en) | Light emitting element | |
| JP2751191B2 (en) | Fluorescent display tube | |
| JPH0614395Y2 (en) | Flat display | |
| JPS6241340Y2 (en) | ||
| JPH01253149A (en) | Display tube for light source | |
| JPH0452928Y2 (en) | ||
| JPH0447889Y2 (en) | ||
| JPH01253147A (en) | Display tube for light source | |
| KR930009466B1 (en) | Plate type picture display apparatus | |
| JPH0634145B2 (en) | Light source unit for display device | |
| JPH04315762A (en) | Light-emitting element | |
| JPH0772811A (en) | Light emitting element | |
| JPH0453990A (en) | Driving method for fluorescent display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |