JPH01163955A - Flat fluorescent lamp - Google Patents
Flat fluorescent lampInfo
- Publication number
- JPH01163955A JPH01163955A JP32255187A JP32255187A JPH01163955A JP H01163955 A JPH01163955 A JP H01163955A JP 32255187 A JP32255187 A JP 32255187A JP 32255187 A JP32255187 A JP 32255187A JP H01163955 A JPH01163955 A JP H01163955A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- electrode
- plate
- flat
- auxiliary electrodes
- 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
- 239000011521 glass Substances 0.000 claims description 6
- 239000005357 flat glass Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
げ）産業上の利用分野
本発明は、ワードプロセッサ或いはパーソナルコンピュ
ータ等にシける液晶デイスプレィ装置や液晶ＴＶ装置の
バックライトとして好適な平面型螢光灯に関する。DETAILED DESCRIPTION OF THE INVENTION G) Industrial Application Field The present invention relates to a flat fluorescent lamp suitable as a backlight for a liquid crystal display device or a liquid crystal TV device used in a word processor or a personal computer.
（ロ）従来の技術
液晶パネルは軽薄で消費電力が少ない七いう利点がある
ため、液晶ＴＶの他にワードプロセッサ或いはパーソナ
ルコンピュータ等のデイスプレィデバイスとして広く利
用されている。一方、液晶自身は非発光であるためバッ
クライトとして例えば特開昭６１−４７０５０号公報（
ＴＩ ＯＩ Ｊ６１／６７）Ｋ記載の如き平面型螢光灯
を用いることが必要となる。(b) Prior Art Liquid crystal panels have the following advantages: they are light and thin and consume little power; therefore, in addition to liquid crystal TVs, they are widely used as display devices for word processors, personal computers, and the like. On the other hand, since the liquid crystal itself does not emit light, it can be used as a backlight, for example, as disclosed in Japanese Patent Application Laid-open No. 61-47050 (
It is necessary to use a flat fluorescent lamp as described in TI OI J61/67)K.
上記平面型螢光灯の放電々極としては平板状の冷陰極タ
イプのものが採用されている。この冷陰極タイプの電極
は熱陰極タイプに比べてフラットな容器に適し、強度及
び耐久性に優れているため、平面型螢光灯に好適であっ
た。As the discharge electrode of the flat fluorescent lamp, a flat cold cathode type is used. This cold cathode type electrode is more suitable for flat containers than the hot cathode type, and has superior strength and durability, so it was suitable for flat fluorescent lamps.
しかしながら、放電開始電圧が熱陰極に比べて高いため
小型の液晶表示装置に採用する場合、消費電力が大きく
なり不利であった。However, since the discharge starting voltage is higher than that of a hot cathode, when used in a small liquid crystal display device, the power consumption becomes large, which is disadvantageous.
ｅ９ 発明が解決しようとする問題点本発明は、上述
の点に鑑み為されたものであり冷陰極タイプの電極を用
いても低い電圧で放電が開始する平面型螢光灯を提供す
るものである。e9 Problems to be Solved by the Invention The present invention has been made in view of the above points, and provides a flat fluorescent lamp in which discharge starts at a low voltage even when using a cold cathode type electrode. be.
に）問題点を解決するための手段
本発明は、放電々極を断面コ字状の平板電極とこの平板
電極の両側だ配された板状の補助電極とこの補助電極間
に配され九フィラメントとで構成する。B) Means for Solving the Problems The present invention provides a discharge electrode having a flat plate electrode having a U-shaped cross section, a plate-shaped auxiliary electrode disposed on both sides of the flat plate electrode, and nine filaments arranged between the auxiliary electrodes. It consists of
（ホ）作 用
上述の手段により、放電開始時は比較的低い電圧でヒー
タが先に放電し、その後平板電極が放電する。(E) Function By using the above-described means, at the start of discharge, the heater discharges first at a relatively low voltage, and then the flat electrode discharges.
（へ）実施例 以下、図面に従い本発明の一実施例につき説明する。(f) Example An embodiment of the present invention will be described below with reference to the drawings.
第１図は本実施例における平面型壁光灯の分解斜視図、
第２図げ）（ロ）（ハ）は放電々極の正面図、平面図及
び側面図である。FIG. 1 is an exploded perspective view of the flat wall light in this example.
The second figures (G), (B), and (C) are a front view, a plan view, and a side view of the discharge electrode.
図中、 （１）＋２３Ｈ一対の上下平板ガラス、＋３１
Ｈこの上下平板ガラス間を所定間隔に保持すべく略口字
状に組まれ九枠ガラスであり、上下平板ガラスと共にブ
リットガラスにより一体化されガラス容器を構成する。In the diagram, (1) +23H pair of upper and lower flat glass, +31
H The upper and lower flat glasses are assembled in a substantially mouth shape to maintain a predetermined distance between them, and are nine-frame glass, and are integrated with the upper and lower flat glasses by bullet glass to form a glass container.
（４）（４）は第２図（イ）（ロ）（ハ）に示す如く一
対の放電々極であり、夫々、断面コ字状の平板電極（４
ａ）、その両側に配され端部での放電促進の丸め夫々端
部がスポット浴１号に工９接続δｎｒコ１ル状のフィラ
メントＣ４Ｑ）及び前記補助重要（４ｂ）（４ｂ）の外
面に夫々スポット溶接等により接続され、電気的機能の
外に放電々極を機械的に支持する機能をも有するリード
片（４ａ）（４ａ）とで構成されている。(4) (4) is a pair of discharge electrodes as shown in Figure 2 (a), (b), and (c), each having a U-shaped cross section (4).
a) A coil-shaped filament C4Q) arranged on both sides of the coil-shaped filament C4Q), whose ends are connected to the spot bath No. 1 and rounded to promote discharge at the ends (4b) The lead pieces (4a) are connected to each other by spot welding or the like, and have the function of mechanically supporting the discharge electrodes in addition to their electrical function.
また、ｆｆ１）は前記ガラス容器内部の空気を排気する
と共にアルゴンガス及び水銀を流入せしめた後、その先
端が熱融着により密閉されるチップ管である。Further, ff1) is a tip tube whose tip is sealed by thermal fusion after evacuating the air inside the glass container and allowing argon gas and mercury to flow therein.
上述の構成の平面型壁光灯における放電々極（４）は平
板電極（４ａ）及び補助電標（４ｂ）（４ｂ）が冷＠極
として作用し、フィラメント（４ｃ）が熱陰極として作
用する。In the discharge electrode (4) in the above-described flat wall lamp, the flat plate electrode (4a) and the auxiliary electrodes (4b) act as cold @ poles, and the filament (4c) acts as a hot cathode. .
そして、放電開始時は、放電開始電圧が低いフ・ｆラメ
ン） （４Ｃ）（４０）間で放電が開始し、その後所定
の放電維持電圧にて平板電極（４ａ）（４ａ）間の放電
が開始する。When the discharge starts, the discharge starts between the flat electrodes (4C) and (40), where the discharge starting voltage is low, and then the discharge starts between the flat plate electrodes (4a) and (4a) at a predetermined discharge sustaining voltage. Start.
従って、平板電極（４ａ）（４１Ｌ）は本来の冷陰極の
放電開始電圧よりずっと低い電圧で放電開始が可能とな
る。Therefore, the plate electrodes (4a) (41L) can start discharging at a much lower voltage than the original discharge starting voltage of the cold cathode.
尚、本実施例におけるフィラメントはコイル状のもので
あるが、他の形状、例えば直線状のものでよいことは明
白である。Although the filament in this example is coiled, it is clear that other shapes, such as straight filaments, may be used.
（ト）発明の効果
上述の如く本発明に依れば、冷陰極タイプの電極である
にも拘わらず、放電開始電圧を大幅に低下することが可
能となる。(G) Effects of the Invention As described above, according to the present invention, the discharge starting voltage can be significantly lowered even though the electrode is a cold cathode type.
図面はいずれも本発明の一実施例に関し、第１図は平面
型壁光灯の分解斜視図、第２図Ｋ）（す（ハ）は夫々、
放電々極の正面図、平面図及び側面図である。
（１）（２）・・・上下平板ガラス、（３）・・・枠ガ
ラス、＋４１＋４］・・・放電々極、（４ａ）・・・平
板電極、（４ｂ）（４ｂ）・・・補助電極、（４ｃ）−
ｉ：一タ、（４ａ）（４Ｌ）・・・リード片、ｆｌＳｌ
−・・チップ管。The drawings all relate to one embodiment of the present invention, and FIG. 1 is an exploded perspective view of a flat wall light, and FIG.
They are a front view, a top view, and a side view of a discharge electrode. (1) (2)... Upper and lower flat glass, (3)... Frame glass, +41+4]... Discharge electrode, (4a)... Flat plate electrode, (4b) (4b)... Auxiliary Electrode, (4c)-
i: one piece, (4a) (4L)... lead piece, flSl
-...Chip tube.
Claims (1)
ラス容器内に一対の放電々極を配置してなる平面型螢光
灯において、前記放電々極を断面コ字状の平板電極とこ
の平板電極の両側に配された板状の補助電極とこの補助
電極間に配されたフィラメントで構成してなる平面型螢
光灯。(1) In a flat fluorescent lamp in which a pair of discharge electrodes are arranged in a glass container in which a pair of flat glasses face each other with a predetermined interval, the discharge electrodes are connected to a flat plate electrode having a U-shaped cross section. A flat fluorescent lamp consists of a plate-shaped auxiliary electrode placed on both sides of a flat plate electrode, and a filament placed between the auxiliary electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32255187A JPH083989B2 (en) | 1987-12-18 | 1987-12-18 | Flat fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32255187A JPH083989B2 (en) | 1987-12-18 | 1987-12-18 | Flat fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01163955A true JPH01163955A (en) | 1989-06-28 |
| JPH083989B2 JPH083989B2 (en) | 1996-01-17 |
Family
ID=18144935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32255187A Expired - Lifetime JPH083989B2 (en) | 1987-12-18 | 1987-12-18 | Flat fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083989B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007032320A1 (en) * | 2005-09-13 | 2007-03-22 | Matsushita Electric Industrial Co., Ltd. | Hot cathode discharge lamp, lamp unit and display |
| DE202007005027U1 (en) * | 2007-04-03 | 2008-08-07 | Gies, Johannes | Energy-saving flat lamp |
-
1987
- 1987-12-18 JP JP32255187A patent/JPH083989B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007032320A1 (en) * | 2005-09-13 | 2007-03-22 | Matsushita Electric Industrial Co., Ltd. | Hot cathode discharge lamp, lamp unit and display |
| DE202007005027U1 (en) * | 2007-04-03 | 2008-08-07 | Gies, Johannes | Energy-saving flat lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083989B2 (en) | 1996-01-17 |
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