JP2786131B2 - Fluorescent display tube - Google Patents
Fluorescent display tubeInfo
- Publication number
- JP2786131B2 JP2786131B2 JP7222382A JP22238295A JP2786131B2 JP 2786131 B2 JP2786131 B2 JP 2786131B2 JP 7222382 A JP7222382 A JP 7222382A JP 22238295 A JP22238295 A JP 22238295A JP 2786131 B2 JP2786131 B2 JP 2786131B2
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent display
- phosphor
- display tube
- zno
- ratio
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は蛍光表示管に関し、
特に立体表示の蛍光表示管に関する。The present invention relates to a fluorescent display tube,
In particular, it relates to a fluorescent display tube for stereoscopic display.
【０００２】[0002]
【従来の技術】従来のＺｎＯ：Ｚｎ蛍光体のみを用いた
平面発光性の蛍光表示管の輝度は、図２（ａ），（ｂ）
に示すように、全陽極セグメント（以下、セグメントと
記す）Ａ〜Ｆ間において、輝度比が８０〜１００％の範
囲内にあった。この範囲内の輝度比の変動そのものは人
間の視覚では検知することが不可能である。2. Description of the Related Art The brightness of a conventional flat fluorescent display using only ZnO: Zn phosphor is shown in FIGS. 2 (a) and 2 (b).
As shown in Table 1, the luminance ratio was in the range of 80 to 100% between all anode segments (hereinafter, referred to as segments) A to F. Fluctuations in the luminance ratio within this range cannot be detected by human vision.
【０００３】一方、立体感のある発光表示状態を得る為
に、特開平３−１５６８４２号公報では、同一蛍光体の
下層に形成された導体セグメント層を抵抗率の異なる複
数の領域にて構成した蛍光表示管を提案している。ま
た、実開平４−８７１４５号公報では、蛍光体の膜厚が
互いに異なるよう複数の表示パターンを形成することに
より立体感を生じさせた蛍光表示管を提案している。On the other hand, in order to obtain a light-emitting display state having a three-dimensional effect, Japanese Patent Application Laid-Open No. 3-156842 discloses that a conductor segment layer formed under a same phosphor is constituted by a plurality of regions having different resistivity. A fluorescent display tube has been proposed. Further, Japanese Utility Model Laid-Open No. 4-87145 proposes a fluorescent display tube in which a plurality of display patterns are formed so that the thicknesses of the phosphors are different from each other to give a three-dimensional effect.
【０００４】[0004]
【発明が解決しようとする課題】以上説明したように従
来のＺｎＯ：Ｚｎ蛍光体を用いた同一蛍光表示管内の輝
度比は、同一陽極電圧印加の状態であれば全セグメント
のそれぞれが８０〜１００％の範囲内にあり、人間の視
覚にて検知可能な輝度比７０％以下の条件をある特定セ
グメントにおいて実現するためには、 （１）この特定セグメント専用の陽極電圧印加電源を追
加，接続し、目標とする輝度比を印加電圧にて調整す
る。As described above, the luminance ratio in the same fluorescent display tube using the conventional ZnO: Zn phosphor is 80 to 100 for all segments when the same anode voltage is applied. % In order to realize a condition in which the luminance ratio is within 70% and the luminance ratio is 70% or less, which can be detected by human vision, in a certain specific segment: (1) Add and connect an anode voltage application power supply dedicated to this specific segment The target luminance ratio is adjusted by the applied voltage.
【０００５】（２）陽極電圧印加電源と特性セグメント
間に抵抗を介し輝度比を調整する。(2) Adjust the luminance ratio between the anode voltage applying power source and the characteristic segment via a resistor.
【０００６】以上の２種の方法があるが、いずれの方法
においても電源増によるコストアップ、蛍光表示管及び
その周辺の電源増によるコストアップ等の欠点があっ
た。There are two types of methods described above, but both methods have drawbacks such as an increase in cost due to an increase in power supply and an increase in cost due to an increase in power supply to the fluorescent display tube and its surroundings.
【０００７】本発明の目的は、電源増や蛍光表示管及び
その周辺の回路増によるコストアップなしに立体表示が
実現できる蛍光表示管を提供することにある。An object of the present invention is to provide a fluorescent display tube capable of realizing a three-dimensional display without increasing the cost due to an increase in the number of power supplies and fluorescent display tubes and peripheral circuits.
【０００８】[0008]
【課題を解決するための手段】本発明は、ガラス基板上
に形成された陽極セグメントと、この陽極セグメント上
に塗布された蛍光体とを有する蛍光表示管において、同
一の前記陽極セグメントにＺｎＯ：Ｚｎ蛍光体と、この
ＺｎＯ：Ｚｎ蛍光体に非発光物質であるＩｎ2Ｏ3 をこ
のＩｎ2 Ｏ3 の混合率が対ＺｎＯ：Ｚｎ比２５〜４０ｗ
ｔ％混合した発光効率の異なる２種類の蛍光体を分離塗
布し、陽極セグメントパターンを形成したことを特徴と
する。SUMMARY OF THE INVENTION The present invention provides a fluorescent display tube having an anode segment formed on a glass substrate and a phosphor coated on the anode segment. The Zn phosphor and the ZnO: Zn phosphor are mixed with In 2 O 3 , which is a non-light emitting substance, by mixing the In 2 O 3 with a ZnO: Zn ratio of 25 to 40 w.
It is characterized in that two kinds of phosphors having different luminous efficiencies mixed by t% are separately coated to form an anode segment pattern.
【０００９】[0009]
【発明の実施の形態】次に本発明の実施の形態について
図面を参照して説明する。Embodiments of the present invention will now be described with reference to the drawings.
【００１０】図１（ａ），（ｂ）は本発明の実施の形態
の一例の輝度の明暗を示す模式図及び輝度比の測定結果
を示す特性図である。まず、従来のＺｎＯ：Ｚｎ蛍光体
と有機溶剤バインダとの混合攪拌による蛍光体ペースト
と、ＺｎＯ：Ｚｎ蛍光体に対ＺｎＯ：Ｚｎ比２５〜４０
ｗｔ％の混合率でＩｎ2 Ｏ3 を有機溶剤バインダと混合
攪拌した蛍光体ペーストの２種類の蛍光体ペーストを調
合する。この場合、混合率２５％未満では輝度比が７０
％以上になり、一方４０％をこえると輝度が低くなり、
人間の視覚で検知が不可能になる。次に、図１（ａ）に
示すように、セグメントＡ，Ｃ，ＥにＺｎＯ：Ｚｎ蛍光
体ペーストをセグメントＢ，Ｄ，ＦにＩｎ2 Ｏ3 含有の
蛍光体ペーストを分離塗布し表示パターンを形成する。
次に、この表示パターンが形成されたガラス基板をカバ
ーガラスにて真空封止し、所定の工程を経て本発明の実
施の形態の一例の蛍光表示管を得る。FIGS. 1 (a) and 1 (b) are a schematic diagram showing brightness contrast and a characteristic diagram showing a measurement result of a brightness ratio according to an embodiment of the present invention. First, a conventional phosphor paste obtained by mixing and stirring a ZnO: Zn phosphor and an organic solvent binder, and a ZnO: Zn phosphor with a ZnO: Zn ratio of 25-40.
Two kinds of phosphor pastes are prepared by mixing and stirring In 2 O 3 with an organic solvent binder at a mixing ratio of wt%. In this case, if the mixing ratio is less than 25%, the luminance ratio becomes 70.
%, While if it exceeds 40%, the brightness decreases,
Detection by human vision becomes impossible. Next, as shown in FIG. 1 (a), a ZnO: Zn phosphor paste is applied to the segments A, C, and E, and a phosphor paste containing In 2 O 3 is applied to the segments B, D, and F, and a display pattern is formed. Form.
Next, the glass substrate on which the display pattern is formed is vacuum-sealed with a cover glass, and a predetermined process is performed to obtain a fluorescent display tube according to an embodiment of the present invention.
【００１１】このようにして得られた蛍光表示管のセグ
メントに同一陽極電圧を印加することにより、図１
（ｂ）に示す輝度比が得られ、Ｉｎ2 Ｏ3 含有の蛍光体
を塗布したセグメントで輝度比４０％を実現し立体表示
を可能にした。By applying the same anode voltage to the segments of the fluorescent display tube obtained in this way, FIG.
The luminance ratio shown in (b) was obtained, and a luminance ratio of 40% was realized in the segment to which the phosphor containing In 2 O 3 was applied, thereby enabling a three-dimensional display.
【００１２】[0012]
【発明の効果】以上説明したように本発明は、従来のＺ
ｎＯ：Ｚｎ蛍光体とこのＺｎＯ：Ｚｎ蛍光体にＩｎ2 Ｏ
3 を２５〜４０ｗｔ％混合した２種の蛍光体を蛍光表示
管内のそれぞれ指定されたセグメントに塗布して表示パ
ターンを形成し、同一陽極電圧を印加することにより、
人間の視覚の検知限界以下の輝度比４０％を実現できた
ので立体表示が可能となるという効果がある。As described above, according to the present invention, the conventional Z
The nO: Zn phosphor and the ZnO: Zn phosphor have In 2 O
3 is mixed with 25 to 40 wt% of the two kinds of phosphors on the designated segments in the fluorescent display tube to form a display pattern, and by applying the same anode voltage,
Since a luminance ratio of 40% or less, which is lower than the detection limit of human vision, can be realized, there is an effect that a three-dimensional display becomes possible.
【図１】（ａ），（ｂ）は本発明の実施の形態の一例の
輝度の明暗を示す模式図及び輝度比の測定結果を示す特
性図である。FIGS. 1 (a) and 1 (b) are a schematic diagram showing brightness contrast and a characteristic diagram showing a measurement result of a brightness ratio according to an example of an embodiment of the present invention.
【図２】（ａ），（ｂ）は従来の蛍光表示管の一例の輝
度の明暗を示す模式図及び輝度比の測定結果を示す特性
図である。FIGS. 2A and 2B are a schematic diagram showing the brightness of a conventional fluorescent display tube and a characteristic diagram showing a measurement result of a brightness ratio.
Ａ，Ｂ，Ｃ，Ｄ，Ｅ セグメント A, B, C, D, E segments
Claims (1)
トと、この陽極セグメント上に塗布された蛍光体とを有
する蛍光表示管において、同一の前記陽極セグメントに
ＺｎＯ：Ｚｎ蛍光体と、このＺｎＯ：Ｚｎ蛍光体に非発
光物質であるＩｎ 2 Ｏ 3 をこのＩｎ 2 Ｏ 3 の混合率が対
ＺｎＯ：Ｚｎ比２５〜４０ｗｔ％混合した発光効率の異
なる２種類の蛍光体を分離塗布し、陽極セグメントパタ
ーンを形成したことを特徴とする蛍光表示管。 An anode segment formed on a glass substrate
And a phosphor applied on the anode segment.
The same anode segment in a fluorescent display tube
The ZnO: Zn phosphor and the ZnO: Zn phosphor do not emit light.
Mixing ratio of In 2 O 3 is a light material the In 2 O 3 pairs
Difference in luminous efficiency when ZnO: Zn ratio is mixed at 25-40 wt%
Separately apply two types of phosphors, and apply anode segment pattern
A fluorescent display tube, characterized in that a fluorescent lamp is formed .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7222382A JP2786131B2 (en) | 1995-08-30 | 1995-08-30 | Fluorescent display tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7222382A JP2786131B2 (en) | 1995-08-30 | 1995-08-30 | Fluorescent display tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0963518A JPH0963518A (en) | 1997-03-07 |
| JP2786131B2 true JP2786131B2 (en) | 1998-08-13 |
Family
ID=16781487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7222382A Expired - Fee Related JP2786131B2 (en) | 1995-08-30 | 1995-08-30 | Fluorescent display tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2786131B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6676757B2 (en) * | 1999-12-17 | 2004-01-13 | Tokyo Electron Limited | Coating film forming apparatus and coating unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105254A (en) * | 1982-12-08 | 1984-06-18 | Futaba Corp | Low velocity electron ray phosphor and fluorescent character display tube |
| JPS59138040A (en) * | 1983-01-27 | 1984-08-08 | Toyota Motor Corp | Fluorescent character display tube device |
-
1995
- 1995-08-30 JP JP7222382A patent/JP2786131B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0963518A (en) | 1997-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980428 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |