JPH0711400Y2 - Flat emission discharge lamp - Google Patents
Flat emission discharge lampInfo
- Publication number
- JPH0711400Y2 JPH0711400Y2 JP13926289U JP13926289U JPH0711400Y2 JP H0711400 Y2 JPH0711400 Y2 JP H0711400Y2 JP 13926289 U JP13926289 U JP 13926289U JP 13926289 U JP13926289 U JP 13926289U JP H0711400 Y2 JPH0711400 Y2 JP H0711400Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- discharge lamp
- glass tube
- cathode
- discharge
- 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 - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、大型ディスプレイの画素や液晶ディスプレイ
のバックライトなどに使用される平面発光型放電灯に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a flat emission type discharge lamp used for pixels of a large display, a backlight of a liquid crystal display and the like.
大型カラーディスプレイの画素として賞用されている平
面発光型放電灯の一例を第２図及び第３図を参照して説
明すると、この放電灯（１）は内部が４つの区画室
（２）…に区分けされた正方形皿状本体（３）の上端開
口を透明な板ガラス（４）で塞ぎ、本体（３）の裏面中
央部に陰極（５）を封入するガラス管（６）を封着した
ものである。本体（３）はセラミック製で、内部の周辺
部に一体に垂設された４つの仕切壁（７）（7a）…で４
つの区画室（２）…が区分けされ、各区画室（２）…は
略Ｕ字状の同一形状のもので、おのおのの内面に蛍光膜
（８）…が形成される。本体（３）の底面中央には各区
画室（２）…に連通する放電穴（９）が形成され、各区
画室（２）…の放電穴（９）と反対の端部には１本ずつ
の陽極（10）…が固定配置される。本体（３）に板ガラ
ス（４）とガラス管（６）は低融点ガラス（11）（12）
で封着され、ガラス管（６）内の陰極（５）は放電穴
（９）を通じて各区画室（２）…に連通して、４つの区
画室（２）…で形成される４つの放電路m1〜m4の共通陰
極として使用される。An example of a flat emission type discharge lamp that is used as a pixel for a large color display will be described with reference to FIGS. 2 and 3. The discharge lamp (1) has four compartments (2) ... The upper end opening of the square dish-shaped body (3) divided into 2 pieces is closed with a transparent plate glass (4), and a glass tube (6) enclosing a cathode (5) is sealed in the center of the back surface of the body (3). Is. The main body (3) is made of ceramic, and it is composed of four partition walls (7) (7a) ...
The two compartments (2) ... Are sectioned, and each compartment (2) ... Has a substantially U-shaped identical shape, and a fluorescent film (8) is formed on the inner surface of each compartment. A discharge hole (9) communicating with each of the compartments (2) ... Is formed in the center of the bottom surface of the main body (3), and one is provided at each end of the compartments (2). The anodes (10) are fixedly arranged. The plate glass (4) and the glass tube (6) are low melting glass (11) (12) in the body (3).
, The cathode (5) in the glass tube (6) communicates with each compartment (2) through the discharge hole (9), and four discharge paths formed by the four compartments (2). Used as a common cathode for m 1 to m 4 .
放電灯（１）における陰極（５）と４つの陽極（10）…
に適当な電圧を印加して、４つの放電路m1〜m4でアーク
放電をさせると、発生した紫外線で各放電路m1〜m4にお
ける蛍光膜（８）…が発光し、その光は板ガラス（４）
を透過して外部に放射される。この場合、各放電路m1〜
m4に流れる電流を変えることで、各放電路m1〜m4におけ
る発光色が赤、緑、青のいずれかに選択されて、１つの
放電灯（１）がカラーディスプレイの１画素として利用
される。Cathode (5) and four anodes (10) in the discharge lamp (1) ...
When an appropriate voltage is applied to the arc to cause arc discharge in the four discharge paths m 1 to m 4 , the generated ultraviolet rays cause the fluorescent film (8) in each of the discharge paths m 1 to m 4 to emit light, Is flat glass (4)
Is emitted to the outside. In this case, each discharge path m 1 ~
By changing the current flowing in m 4 , the emission color in each discharge path m 1 to m 4 is selected from red, green and blue, and one discharge lamp (1) is used as one pixel of a color display. To be done.
ところで、上述した平面発光型放電灯（１）においてガ
ラス管（６）内の開口端面から陰極（５）の表面に到る
距離（l1）が短く、ガラス管（６）内で陰極（５）が浅
く封入されている程、外観寸法が短くなって小型化でき
ると共に、蛍光膜（８）は効率良く発光し、始動電圧を
低く、かつ、消費電力を小さくできる。ところが、陽極
（５）を封入したガラス管（６）を製造するにあたって
は、一対の陰極（５）が両端に封入されているガラス管
（図示せず）を真ん中で加熱・溶断して輪切りしてお
り、その際、上記距離（l1）が余りに短いと、加熱時に
陰極（５）表面に塗布しているエミッタ物質が劣化する
ため、必要以上に短くできなかった。By the way, in the above-mentioned flat-emitting discharge lamp (1), the distance (l 1 ) from the opening end face in the glass tube (6) to the surface of the cathode (5) is short, and the cathode (5 The more shallowly enclosed (), the shorter the external dimension and the size can be reduced, and the fluorescent film (8) can efficiently emit light, lower the starting voltage and reduce the power consumption. However, when manufacturing the glass tube (6) in which the anode (5) is enclosed, a glass tube (not shown) in which a pair of cathodes (5) is enclosed at both ends is heated and melted in the middle to cut into rings. However, at this time, if the distance (l 1 ) is too short, the emitter material coated on the surface of the cathode (5) is deteriorated during heating, so that it cannot be shortened more than necessary.
上記技術的手段によれば、本体裏面中央部に封着したガ
ラス管の開口端面からその内部に封入している陰極表面
に到る距離を１〜8mmの大きさに設定し、製造時にガラ
ス管を加熱しても陰極表面のエミッタ物質を劣化させる
ことなく、上記距離を短くし、始動電圧や消費電力を下
げることができる。According to the above technical means, the distance from the opening end face of the glass tube sealed at the center of the back surface of the main body to the cathode surface sealed inside is set to a size of 1 to 8 mm, and the glass tube is manufactured at the time of manufacturing. It is possible to shorten the distance and reduce the starting voltage and power consumption without deteriorating the emitter material on the surface of the cathode even when heated.
本考案の一実施例を第１図を参照して以下説明する。第
２図と同一参照符号は、同一又は相当部分を示しその説
明を省略する。相違する点は、放電灯の正方形皿状本体
（３）の裏面中央部に封着したガラス管（６）におい
て、その開口端面から、内部に封入している陰極（５）
の表面に到る距離（l0）を1mm以上で8mm以下の大きさに
設定したことである。即ち、距離（l0）が1mm以下では
ガラス管（５）を製造するにあたり、長尺なガラス管の
両端部に、表面にエミッタ物質を塗布した陰極を封入し
てガラス管を真ん中より加熱・溶断する際、エミッタ物
質を熱的に劣化させ、又、8mm以上では外観寸法が大き
くなり、かつ、始動電圧や消費電力も大きくなる。とこ
ろが、上記設定値により、陰極表面のエミッタ物質を熱
的に劣化させることなく、距離（l0）が十分、短くな
り、外観寸法が小型化できると共に、始動電圧や消費電
力も小さくなる。An embodiment of the present invention will be described below with reference to FIG. The same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and the description thereof will be omitted. The difference is that in the glass tube (6) sealed to the central portion of the back surface of the square dish-shaped main body (3) of the discharge lamp, the cathode (5) sealed inside from the opening end face thereof.
The distance (l 0 ) to reach the surface of the is set to 1 mm or more and 8 mm or less. That is, when the distance (l 0 ) is 1 mm or less, when manufacturing the glass tube (5), the cathode coated with the emitter material on the surface is enclosed at both ends of the long glass tube to heat the glass tube from the center. When fused, the emitter material is thermally deteriorated, and if it is 8 mm or more, the external dimension becomes large, and the starting voltage and power consumption also increase. However, with the above-mentioned set value, the distance (l 0 ) can be sufficiently shortened without thermally deteriorating the emitter material on the cathode surface, the external size can be reduced, and the starting voltage and power consumption can be reduced.
本考案によれば、陰極を封入したガラス管を本体裏面中
央部に封着してなる平面発光型放電灯において、ガラス
管開口端面から陰極表面に到る距離を1mm以上で8mm以下
の大きさに設定したから、ガラス管製造時の加熱によっ
て陰極表面のエミッタ物質を劣化させることなく、上記
距離を短くでき、外観寸法の小型化を図ることができ、
かつ、始動電圧や消費電力を低減させることができる。According to the present invention, in a flat emission type discharge lamp in which a glass tube enclosing a cathode is sealed at the center of the back surface of the main body, the distance from the opening end face of the glass tube to the cathode surface is 1 mm or more and 8 mm or less. Since it is set to, the above distance can be shortened without deteriorating the emitter material on the cathode surface due to heating during manufacturing of the glass tube, and the external size can be reduced.
In addition, the starting voltage and power consumption can be reduced.
第１図は本考案に係る平面発光型放電灯の一実施例を示
す部分断面側面図、第２図と第３図は従来の平面発光型
放電灯の一具体例を示す部分断面側面図とそのＡ−Ａ線
横断面図である。 （２）……区画室、（３）……本体、（４）……透光性
蓋体、（５）……陰極、（６）……ガラス管、（７）…
…仕切壁、（８）……蛍光膜、（９）……放電穴、（1
0）……陽極、m1〜m4……放電路、l0……１〜8mmの距
離。FIG. 1 is a partial cross-sectional side view showing an embodiment of a flat-emission discharge lamp according to the present invention, and FIGS. 2 and 3 are partial cross-sectional side views showing a concrete example of a conventional flat-emission discharge lamp. It is the AA line cross-sectional view. (2) ... compartment, (3) ... main body, (4) ... transparent lid, (5) ... cathode, (6) ... glass tube, (7) ...
… Partition wall, (8) …… Fluorescent film, (9) …… Discharge hole, (1
0) …… Anode, m 1 to m 4 …… Discharge path, l 0 …… 1 to 8 mm distance.
Claims (1)
となる区画室に区分けする仕切壁を一体に有すると共
に、裏面中央部に上記各区画室に連通する放電穴が形成
された本体と、本体の各区画室の内面に形成された蛍光
膜と、上記本体の裏面中央部に上端開口が封着され、内
部に陰極を封入したガラス管と、上記各区画室の放電穴
と反対の端部に固定配置された複数の陽極と、本体の上
端開口を塞いで各区画室とで独立点灯する複数の放電路
を形成する透光性蓋体とを具備した平面発光型放電灯に
おいて、 上記ガラス管の開口端面から陰極表面までの距離を1mm
以上で8mm以下に設定したことを特徴とする平面発光型
放電灯。Claims: 1. A rectangular plate, which integrally has a partition wall for partitioning into a plurality of discharge passage compartments in the inner peripheral portion thereof, and has a discharge hole communicating with each of the compartments in the center of the rear surface. The main body, the fluorescent film formed on the inner surface of each compartment of the main body, the upper end opening is sealed at the center of the back surface of the main body, the glass tube enclosing a cathode inside, and the discharge hole of each compartment opposite A planar light emitting discharge lamp comprising: a plurality of anodes fixedly arranged at an end; and a translucent lid that covers a top opening of a main body and forms a plurality of discharge paths that are independently lit in each compartment, The distance from the open end of the glass tube to the cathode surface is 1 mm
The flat light emitting discharge lamp characterized in that it is set to 8 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926289U JPH0711400Y2 (en) | 1989-11-29 | 1989-11-29 | Flat emission discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926289U JPH0711400Y2 (en) | 1989-11-29 | 1989-11-29 | Flat emission discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0377360U JPH0377360U (en) | 1991-08-02 |
| JPH0711400Y2 true JPH0711400Y2 (en) | 1995-03-15 |
Family
ID=31686320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13926289U Expired - Lifetime JPH0711400Y2 (en) | 1989-11-29 | 1989-11-29 | Flat emission discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711400Y2 (en) |
-
1989
- 1989-11-29 JP JP13926289U patent/JPH0711400Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0377360U (en) | 1991-08-02 |
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