JPH02276150A - Plane luminous discharge lamp - Google Patents
Plane luminous discharge lampInfo
- Publication number
- JPH02276150A JPH02276150A JP4472189A JP4472189A JPH02276150A JP H02276150 A JPH02276150 A JP H02276150A JP 4472189 A JP4472189 A JP 4472189A JP 4472189 A JP4472189 A JP 4472189A JP H02276150 A JPH02276150 A JP H02276150A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- lamp
- lamp body
- light
- 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.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims description 8
- 229910052756 noble gas Inorganic materials 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 239000005357 flat glass Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液晶デイスプレィパネルや各種表示パネルのバ
ックライト及び各種表示灯等に利用される平面発光型放
電灯に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flat-emitting discharge lamp used for backlights of liquid crystal display panels and various display panels, various indicator lamps, and the like.
平面発光型放電灯はEL灯よりも高輝度で面発光するこ
とから、液晶デイスプレィパネルのバックライトや、大
型デイスプレィ装置の表示素子などに利用されている。Since flat-emitting discharge lamps emit surface light with higher brightness than EL lamps, they are used in backlights for liquid crystal display panels, display elements in large-sized display devices, and the like.
この平面発光型放電灯は偏平な中空の灯体内に蛇行状の
単数の放電路を形成したものと、複数の独立した平行な
放電路を形成したものが用途に応じて使い分けられてお
り、その具体例を第5図乃至第8図を参照して説明する
。These flat-emitting discharge lamps are classified into two types depending on the application: those with a single meandering discharge path formed within a flat, hollow lamp body, and those with multiple independent parallel discharge paths. A specific example will be explained with reference to FIGS. 5 to 8.
第5図及び第6図の平面発光型放電灯(1)は、1つの
偏平な密閉容器である灯体(2)で1つの蛇行状放電路
(a)を形成したものである。灯体(2)はセラミック
製の矩形1状の本体(3)の開口上端を透明な坂ガラス
(4)で密閉したもので、本体(3)の内部は複数の仕
切壁(5)・・・で蛇行状に仕切られており、本体(3
)の内面には蛍光Jll! (6)が形成される。The planar discharge lamp (1) shown in FIGS. 5 and 6 has one meandering discharge path (a) formed by a lamp body (2) that is a flat, closed container. The lamp body (2) is made of a rectangular ceramic body (3) whose upper opening is sealed with a transparent sloped glass (4), and the inside of the body (3) has multiple partition walls (5)...・The main body (3
) is fluorescent on the inside! (6) is formed.
また、本体(3)の内部の蛇行状放電路(a)の両端部
分に1対の電極(7)(8)が本体(3)を貫通して配
置される。灯体(2)に水銀を封入して、画電極(7)
(8)に交流又は直流電圧を印加すると、蛇行状放電路
(a)でアーク放電が発生して蛍光1)91(6)が発
光し、その光は板ガラス(4)を透過して放射される。Further, a pair of electrodes (7) and (8) are arranged at both ends of the meandering discharge path (a) inside the main body (3) so as to penetrate through the main body (3). The lamp body (2) is filled with mercury, and the picture electrode (7)
When an AC or DC voltage is applied to (8), an arc discharge occurs in the meandering discharge path (a) and fluorescence 1)91(6) is emitted, and the light is transmitted through the plate glass (4) and emitted. Ru.
第7図及び第8図の平面発光型放電灯(9)は、1つの
偏平な密閉容器である灯体(1G)内に独立して形成さ
れた複数の放電路(b)・・・のそれぞれの両端部に1
対ずつ電極(1))・・・(12)・・・を配置したも
のである。灯体(lO)は矩形皿状の本体(13)の内
部を平行な複数の仕切壁(14)・・・で区分けして、
それぞれの内面に蛍光膜(15)・・・を形成し、本体
(13)の上端開口を透明な板ガラス(15)で密閉し
て構成される。灯体(10)における独立した複数の放
電路(b)・・・には水銀が封入され、1つの放電路(
b)・の両端の1対の電極(1)) (12)に電圧
を印加してアーク放電させると、この放電路(b)が点
灯して発光する。従って、複数の放電路(b)・・・を
同時、又は短時間で逐一に点滅させると、灯体(lO)
が面発光する。The flat-emitting discharge lamp (9) shown in Figs. 7 and 8 has a plurality of discharge paths (b) formed independently within a lamp body (1G) which is a flat airtight container. 1 at each end
Electrodes (1))...(12)... are arranged in pairs. The lamp body (lO) has a rectangular dish-shaped main body (13) divided by a plurality of parallel partition walls (14)...
A fluorescent film (15) is formed on each inner surface, and the upper opening of the main body (13) is sealed with a transparent plate glass (15). A plurality of independent discharge paths (b) in the lamp body (10) are filled with mercury, and one discharge path (
When a voltage is applied to the pair of electrodes (1) and (12) at both ends of b) and arc discharge is caused, this discharge path (b) lights up and emits light. Therefore, if multiple discharge paths (b)... are blinked simultaneously or one by one in a short period of time, the lamp body (lO)
emits surface light.
〔発明が解決しようとする課題〕
上記2種の水銀封入放電灯(1)(9)は高輝度で面発
光するが、水銀を封入したものは周囲温度の変化に対す
る点灯時の明るさの変動幅が太き(、輝度が安定しない
共通の欠点と共に、それぞれに次なる間Eがあった。[Problem to be solved by the invention] The above two types of mercury-filled discharge lamps (1) and (9) emit surface light with high brightness, but those filled with mercury have fluctuations in brightness when lit due to changes in ambient temperature. Along with the common drawback that the width is thick (and the brightness is unstable), each had the following period E.
!R5図の放電灯(1)は蛇行状放電路(9)で面発光
するものゆえに、放電路数、電極数が少なくて、全体の
構造がWI単である反面、面発光させる蛇行状放電路<
a>の全長が長く、従って、アーク長が長くなって、安
定してアーク放電させるためには1対の電極(7)(8
) に高い起動電圧を印加する必要がある。′、・のた
め、放電灯(1)の点灯駆動装置に高圧発生回路やその
補に回路などが必要で、点灯駆動装置が複雑、高価とな
る不都合があった。! Since the discharge lamp (1) in Figure R5 emits light from a surface with a meandering discharge path (9), the number of discharge paths and electrodes is small, and the overall structure is WI single. <
a> is long, and therefore the arc length is long, and in order to stably discharge the arc, a pair of electrodes (7) (8) is required.
) It is necessary to apply a high starting voltage to ′, ·, the lighting drive device for the discharge lamp (1) requires a high-voltage generating circuit and a supplementary circuit, resulting in the inconvenience that the lighting drive device is complicated and expensive.
また、第7図の放電灯(9)は独立した複数の放電路(
b)・・・におけるアーク長が短くて、各放電路(b)
・・・を点灯させる電圧は小さくて済むが、複数の放電
路(b)・・・のそれぞれに1対の電極’:1))・・
・ (12)・・・を配!するために電極数がr(なり
、この電極を外部に引き出すための、リー・ド線の数も
多くなって、放電灯(9)やその周辺装置が複雑、大形
化する問題があった。Further, the discharge lamp (9) in Fig. 7 has a plurality of independent discharge paths (
b) The arc length in... is short, and each discharge path (b)
Although the voltage required to light up ... can be small, one pair of electrodes':1)) for each of the plurality of discharge paths (b)...
・ Arrange (12)...! In order to do this, the number of electrodes becomes r (r), and the number of lead wires to lead these electrodes to the outside also increases, creating a problem that the discharge lamp (9) and its peripheral devices become complicated and large. .
本考案はかかる問題点に鑑みてなされたもので、その目
的とするところは、電極数が少な(で、低電圧で起動す
る、輝度の安定した平面発光型放電灯を提供するにある
。The present invention was devised in view of these problems, and its purpose is to provide a flat-light discharge lamp with a small number of electrodes, which can be started at low voltage, and has stable brightness.
本発明は上記目的を、偏平な密閉容器体で、内部の両端
部を除(中央部が平行な仕切壁で複数の放電路に区分け
され1.内部の両端部に前記複数の放電路に共通の1対
の電極が配置されて、希ガスが封入された灯体に、前記
複数の放電路にそれぞれに沿わせて独立した複数条の放
電駆動制御用導電性ストライプを付設した平面発光型放
電灯にて達成したものである。The present invention has achieved the above-mentioned object by providing a flat airtight container body, which is divided into a plurality of discharge paths by a parallel partition wall (the central part is divided into a plurality of discharge paths by a parallel partition wall). A planar light-emitting type discharge lamp in which a plurality of independent conductive stripes for discharge drive control are attached along each of the plurality of discharge paths to a lamp body in which a pair of electrodes are arranged and a rare gas is sealed. This was achieved using electric light.
灯体の両端の1対の電極に起動電圧を印加すると共に、
灯体に付設された複数の導電性ストライプの任意の1つ
に起動補助電圧を印加すると、この起動補助電圧が印加
されたストライプに沿う灯体内の1つの放電路にアーク
放電が発生して点灯するので、複数のストライプに逐一
に起動補助電圧を印加していくと、灯体内の平面状に並
ぶ複数の放電路が順次に点灯して発光し、これを短時間
で繰り返すと灯体が面発光する。このような放電灯は電
極が1対の最小数であり、各放電路のアーク長が短いの
で、構造が簡単で起動電圧が小さく、また、希ガス封入
放電灯は周囲温度の変化に対する明るさの変動幅が小さ
くて、輝度が安定する。Applying a starting voltage to a pair of electrodes at both ends of the lamp,
When a starting auxiliary voltage is applied to any one of the plurality of conductive stripes attached to the lamp body, an arc discharge is generated in one discharge path inside the lamp body along the stripe to which this starting auxiliary voltage is applied, and the lamp is lit. Therefore, when the starting auxiliary voltage is applied to multiple stripes one by one, the multiple discharge paths lined up in a plane inside the lamp body sequentially light up and emit light, and if this is repeated in a short period of time, the lamp body becomes flat. Emits light. This type of discharge lamp has a minimum number of electrodes, one pair, and the arc length of each discharge path is short, so the structure is simple and the starting voltage is low.Also, rare gas-filled discharge lamps have low brightness against changes in ambient temperature. The fluctuation range is small and the brightness is stable.
実施例について、第1図乃至第4図を参照して説明する
と、同図の平面発光型放電灯(16)は偏平な矩形の密
閉容器である灯体(17)の内部の中央部に平行な複数
の仕切壁(18)・・・で区分けされた平行な複数例え
ば4つの放電路m1〜m4を形成し、灯体(17)の内
部の両端部に各放電路m1〜m4に共通の1対の電極(
19)(20)を配置して灯体(17)に希ガスを封入
すると共に、灯体(17)に4つの放電路m1〜m4に
沿わせて4つの独立した放電駆動制御用導電ストライブ
(21)〜(24)を形成したものである。The embodiment will be explained with reference to FIGS. 1 to 4. The planar discharge lamp (16) shown in the figure is parallel to the center of the interior of the lamp body (17), which is a flat rectangular airtight container. A plurality of parallel discharge paths m1 to m4, for example, four, separated by a plurality of partition walls (18)... are formed, and a common discharge path to each discharge path m1 to m4 is formed at both ends inside the lamp body (17). A pair of electrodes (
19) (20) are arranged to fill the lamp body (17) with rare gas, and four independent conductive strips for discharge drive control are installed in the lamp body (17) along the four discharge paths m1 to m4. (21) to (24) are formed.
詳しく説明すると、灯体(17)はセラミック製等の矩
形I状本体(25)の上端開口を透明な板ガラス(26
)で密閉した構造で、本体(25)の内部の両端部を除
く中央部に4つの放電路m1〜m4を仕切る仕切壁(1
8)が一体に形成される0本体(25)の両端部の中央
に1対の電極(19) (20)が本体(25)に貫
通封止されて固定され、本体(25)の内面全域に蛍光
II (27)が形成される。また、4つの導電性スト
ライブ(21)〜(24)は本体(25)の裏面に、4
つの放電路m1〜m4の中心線に沿わせて、電極(19
) (20)の近(まで延在する長さで形成される。To explain in detail, the lamp body (17) is made of a rectangular I-shaped body (25) made of ceramic or the like, and the upper end opening thereof is covered with a transparent plate glass (26).
), and there is a partition wall (1
A pair of electrodes (19) and (20) are sealed and fixed to the center of both ends of the body (25) in which the body (25) is integrally formed, and are fixed to the entire inner surface of the body (25). Fluorescence II (27) is formed. In addition, four conductive stripes (21) to (24) are arranged on the back surface of the main body (25).
The electrodes (19
) (20) is formed with a length extending up to (20).
この各ストライプ(21)〜(24)は本体(25)の
裏面にカーボンを塗布したもの、金属箔テープを貼布し
たものなどである。Each of the stripes (21) to (24) is formed by applying carbon to the back surface of the main body (25), pasting a metal foil tape, or the like.
上記希ガス封入放電灯(16)の点灯は次のように行わ
れる。1対の電極(19) (20)に起動電圧を印
加しておいて、4つのストライプ(21)〜(24)に
逐一に起動補助電圧を印加する0例えば、第4図に示す
ように、4つのストライプ(21)〜(24)を点灯駆
動制御回路(28)にそれぞれにスイッチング素子(2
9)・・・を介して接続して、スイッチング素子(29
)・・・を順次に繰り返しオン、オフさせて4つのスト
ライプ(21)〜(24)に順次に繰り返して起動補助
電圧を印加すると、この起動補助電圧が印加されたスト
ライプ(21)〜(24)に対応する。放電路m1〜m
4がアーク放電して発光する。具体的に説明すると、い
ま1つのストライプ(21)に起動補助電圧を印加する
と、このストライプ(21)と対応する1つの放電路m
1だけにストライプ(21)からの電界の作用でアーク
放電が発生する。このアーク、放電は放電路m1のスト
ライプ(21)と対向する中心線に沿って集中して行わ
れて、放電路m1における蛍光II! (27)の中心
線に沿う部分が集中的に明るく発光する0次に別のスト
ライプ(21)だけに起動補助電圧を印加すると、この
ストライプ(21)と対応する1つの放電路m2だけに
アーク放電が発生して発光する。このようにして、4つ
のストライプ(21)〜(24)に逐一に、短時間で繰
り返し起動補助電圧を印加していくと、4つの放電路m
1〜m4が順次に点滅し、結果的に灯体(17)が面発
光する。The rare gas-filled discharge lamp (16) is lit as follows. For example, as shown in FIG. The four stripes (21) to (24) are connected to the lighting drive control circuit (28) by switching elements (2), respectively.
9)... by connecting the switching element (29).
)... are sequentially turned on and off, and the starting auxiliary voltage is applied to the four stripes (21) to (24) sequentially. ). Discharge path m1~m
4 arc discharges and emits light. Specifically, when a starting auxiliary voltage is applied to one stripe (21), one discharge path m corresponding to this stripe (21)
1, arc discharge occurs due to the action of the electric field from the stripe (21). This arc and discharge are concentrated along the center line facing the stripe (21) of the discharge path m1, and the fluorescence II! When a starting auxiliary voltage is applied only to another zero-order stripe (21) where the part along the center line of (27) emits light intensively and brightly, an arc occurs only in one discharge path m2 corresponding to this stripe (21). Electric discharge occurs and light is emitted. In this way, by repeatedly applying the starting auxiliary voltage to the four stripes (21) to (24) one by one in a short period of time, the four discharge paths m
1 to m4 blink in sequence, and as a result, the lamp body (17) emits light from the surface.
尚、以上のように点灯する放電灯(16)は希ガスが封
入されたものゆえに、水銀封入放電灯に比べて輝度が少
し低いが、その輝度は周囲温度に影響を受は難く安定す
る。また、放電灯(16)は4つの放電路m1〜m4を
逐一に点滅させる使用の他に、用途によっては4つの放
電路m1〜m4のいずれか1つを任意の時間だけ点灯さ
せることも可能である。Since the discharge lamp (16) lit as described above is filled with a rare gas, its brightness is a little lower than that of a mercury-filled discharge lamp, but its brightness is not easily affected by the ambient temperature and is stable. In addition to using the discharge lamp (16) to blink the four discharge paths m1 to m4 one by one, depending on the application, it is also possible to light any one of the four discharge paths m1 to m4 for an arbitrary period of time. It is.
本発明によれば、灯体に付設した複数の導電性ストライ
プに起動補助電圧を選択的に印加することで、灯体内の
複数の放電路を選択的に点灯させて灯体を面発光させる
ことができ、しかもこのような灯体は1対の電極を具え
た構造簡単なものであり、灯体内の複数の放電路はそれ
ぞれ、に直線的なアーク長の短いもので、1対の電極に
印加する起動電圧は小さくてもよく、従って、小形の各
種表示パネルのバンクライトなどに好適な放電灯が提供
できる。また、希ガスを封入した放電灯ゆえに、周囲の
温度の変化に対する明るさの変動幅が小さくて、様々な
温度条件下で使用される表示装置の光源などに有効に使
用できる。According to the present invention, by selectively applying a starting auxiliary voltage to a plurality of conductive stripes attached to a lamp body, a plurality of discharge paths within the lamp body are selectively lit, and the lamp body emits light from a surface area. Moreover, such a lamp body has a simple structure with one pair of electrodes, and each of the multiple discharge paths inside the lamp body has a short linear arc length, and one pair of electrodes has a short arc length. The starting voltage to be applied may be small, and therefore a discharge lamp suitable for use in bank lights of various small display panels can be provided. Furthermore, since the discharge lamp is filled with a rare gas, its brightness fluctuates within a small range due to changes in ambient temperature, and can be effectively used as a light source for display devices used under various temperature conditions.
第1図は本発明の一実施例を示す一部省略部分を含む平
面図、第2図は第1図の放電灯の下面図、第3図は第1
図の放電灯の部分断面を含む正面図、第4図は第3図の
A−A線に沿う断面図である。
第5図は従来の平面発光型放電灯の一部省略部分を含む
平面図、第6図は第5図の放電灯の部分断面を含む正面
図である。
第7図は従来の平面発光型放電灯の一部省略部分を含む
平面図、第8図は第7図の放電灯の部分断面を含む正面
図である。
(16) −・−・放電灯、 (17) −灯体
、(18)・−仕切壁、
(19)、(20) −電極、
m1〜m4・−放電路、
(21)〜(24)・−・−導電性スドライブ。
特
代
許
出
理
順
入 日本電気ホーム
エレクトロニクス株式会社
入江 原 省 吾
E社
り、1
窮SFIG. 1 is a plan view with some omitted parts showing an embodiment of the present invention, FIG. 2 is a bottom view of the discharge lamp shown in FIG. 1, and FIG. 3 is a plan view of the discharge lamp shown in FIG.
FIG. 4 is a front view including a partial cross section of the discharge lamp shown in the figure, and FIG. 4 is a sectional view taken along line A--A in FIG. FIG. 5 is a plan view, with some parts omitted, of a conventional flat-light discharge lamp, and FIG. 6 is a front view, partially in cross section, of the discharge lamp of FIG. FIG. 7 is a plan view, with some parts omitted, of a conventional flat-light discharge lamp, and FIG. 8 is a front view, partially in cross section, of the discharge lamp of FIG. (16) -・-Discharge lamp, (17) -Lamp body, (18)・-Partition wall, (19), (20) -Electrode, m1-m4・-Discharge path, (21)-(24)・−・−Conductive Sdrive. Special license granted by NEC Home Electronics Co., Ltd. Iriehara Sho Irie, 1st S
Claims (1)
が平行な仕切壁で複数の放電路に区分けされ、内部の両
端部に前記複数の放電路に共通の1対の電極が配置され
て、希ガスが封入された灯体に、前記複数の放電路にそ
れぞれに沿わせて独立した複数条の放電駆動制御用導電
性ストライプを付設してなる平面発光型放電灯。(1) A flat, airtight container whose central part, excluding both ends, is divided into a plurality of discharge paths by parallel partition walls, and a pair of electrodes common to the plurality of discharge paths are installed at both ends of the inside. A flat light emitting discharge lamp comprising a plurality of independent conductive stripes for discharge drive control along each of the plurality of discharge paths, attached to a lamp body arranged and filled with a rare gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4472189A JPH02276150A (en) | 1989-02-23 | 1989-02-23 | Plane luminous discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4472189A JPH02276150A (en) | 1989-02-23 | 1989-02-23 | Plane luminous discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02276150A true JPH02276150A (en) | 1990-11-13 |
Family
ID=12699294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4472189A Pending JPH02276150A (en) | 1989-02-23 | 1989-02-23 | Plane luminous discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02276150A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996018281A2 (en) * | 1994-12-05 | 1996-06-13 | Philips Electronics N.V. | Circuit arrangement for alternatingly establishing and extinguishing of a discharge in a plurality of discharge paths |
WO2001049076A3 (en) * | 1999-12-28 | 2001-12-06 | Honeywell Inc | Partitioned flat fluorescent lamp |
-
1989
- 1989-02-23 JP JP4472189A patent/JPH02276150A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996018281A2 (en) * | 1994-12-05 | 1996-06-13 | Philips Electronics N.V. | Circuit arrangement for alternatingly establishing and extinguishing of a discharge in a plurality of discharge paths |
US5714848A (en) * | 1994-12-05 | 1998-02-03 | U.S. Philips Corporation | Variable color discharge lamp |
WO2001049076A3 (en) * | 1999-12-28 | 2001-12-06 | Honeywell Inc | Partitioned flat fluorescent lamp |
US6876139B1 (en) | 1999-12-28 | 2005-04-05 | Honeywell International Inc. | Partitioned flat fluorescent lamp |
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