JP2000082441A - Flat plate light source - Google Patents
Flat plate light sourceInfo
- Publication number
- JP2000082441A JP2000082441A JP11210232A JP21023299A JP2000082441A JP 2000082441 A JP2000082441 A JP 2000082441A JP 11210232 A JP11210232 A JP 11210232A JP 21023299 A JP21023299 A JP 21023299A JP 2000082441 A JP2000082441 A JP 2000082441A
- Authority
- JP
- Japan
- Prior art keywords
- face plate
- light source
- light
- transparent conductive
- insulating substrate
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は平面状に発光する平
板型光源に関し、より詳細には透過型液晶パネル等、バ
ックライトが必要な表示素子を使用する、例えばテレ
ビ、ゲーム機やカーナビゲーションシステム等の情報映
像機器やワープロ等のＯＡ機器、若しくは光源を内臓し
た表示システム等における平板型光源に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat light source which emits light in a plane, and more particularly, to a television, a game machine or a car navigation system using a display element such as a transmissive liquid crystal panel which requires a backlight. OA equipment such as a word processor, or a flat light source in a display system incorporating a light source.
【０００２】[0002]
【従来の技術】液晶パネルは薄型軽量で、消費電力が少
ないため、テレビやワープロ、パソコン等のＯＡ機器あ
るいは各種の情報映像ディスプレイとして広く利用され
ている。この液晶パネルは自発光素子でないため、画像
表示のために背面から光を供給する平板型の面状照明装
置や平板型光源が必要である。2. Description of the Related Art Liquid crystal panels are widely used as OA equipment such as televisions, word processors, personal computers, etc., or various information video displays, because they are thin and lightweight and consume little power. Since this liquid crystal panel is not a self-luminous element, a flat surface illuminating device or a flat light source for supplying light from the back side for displaying an image is required.
【０００３】図８は、例えば特開平６−２３１７３１に
記載されている従来の平板型光源の構造図で、透光性を
有する前面平面基板１００と、前面平面基板１００の内
面に被着された蛍光体膜６０と、前面平面基板１００に
対向して設けられた背面基板１１０と、背面基板１１０
の内面にパターン形成された導体電極２１と、導体電極
２１を覆う誘電体膜３１と、誘電体膜３１の上面に被着
された蛍光体膜６１と、前面平面基板１００と背面基板
１１０とに一定の間隙を保持して放電空間５１を密封す
る外枠体４５とを備え、放電からの紫外線で蛍光体６
０、６１を励起発光させる。本構成では、前面平面基板
１００が発光面となり、この上に液晶パネルが設けられ
る。FIG. 8 is a structural view of a conventional flat light source described in, for example, Japanese Patent Application Laid-Open No. 6-231731. The front flat substrate 100 having translucency and the inner surface of the front flat substrate 100 are attached. A phosphor film 60, a rear substrate 110 provided to face the front flat substrate 100, and a rear substrate 110
A conductive electrode 21 having a pattern formed on the inner surface thereof, a dielectric film 31 covering the conductive electrode 21, a phosphor film 61 deposited on the upper surface of the dielectric film 31, a front flat substrate 100 and a rear substrate 110. An outer frame 45 for sealing the discharge space 51 while maintaining a constant gap, and
0 and 61 are excited to emit light. In this configuration, the front flat substrate 100 serves as a light emitting surface, and a liquid crystal panel is provided thereon.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た従来の平板型光源では、電極上の誘電体上に蛍光体が
塗布されている構造のため、放電時のイオン衝撃で蛍光
体が劣化する。このため、輝度の低下が激しく、寿命が
短いという問題があった。また、電極を接近させて並べ
ているため、放電のモードは負グローを利用することに
なる。このため、発光効率が悪く、消費電力が大きい等
の問題もあった。However, in the above-described conventional flat light source, the phosphor is deteriorated by ion bombardment during discharge because of the structure in which the phosphor is coated on the dielectric on the electrode. For this reason, there has been a problem that the luminance is drastically reduced and the life is short. Further, since the electrodes are arranged close to each other, the discharge mode uses a negative glow. For this reason, there are also problems such as poor luminous efficiency and large power consumption.
【０００５】本発明の目的は上記した問題点を解消する
ためになされたもので、簡単な構造で高輝度、高効率、
長寿命な平板型光源を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to achieve high brightness, high efficiency, and a simple structure.
An object of the present invention is to provide a long-life flat light source.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
本発明による平板型光源は、発光面となる透光性を有す
る面板と、該面板の内面に形成された複数の透明導電膜
からなる電極と、該透明導電膜が外部電極部とされる部
分以外を覆って設けられた透光性を有する誘電体層と、
前記面板と対向して配置され、前記透明導電膜電極と交
叉する方向で、放電空間を区画して設けられた複数の放
電路と、該放電路の内壁面に被着された蛍光体とを有す
る絶縁基板とを備え、前記面板と前記絶縁基板とが一体
に封着され、内部に希ガス、又は希ガスと水銀が封入さ
れている。In order to achieve the above object, a flat light source according to the present invention comprises a light-transmitting face plate and a plurality of transparent conductive films formed on the inner surface of the face plate. An electrode, a light-transmitting dielectric layer provided over the portion other than the portion where the transparent conductive film is an external electrode portion,
In the direction intersecting with the transparent conductive film electrode, the plurality of discharge paths are provided so as to divide the discharge space in a direction intersecting with the transparent conductive film electrode, and the phosphor adhered to the inner wall surface of the discharge path is formed. The face plate and the insulating substrate are integrally sealed, and a rare gas or a rare gas and mercury are sealed therein.
【０００７】本発明のように構成された平板型光源によ
れば、発光面となる透光性を有する面板の内面には透明
導電膜からなる電極が形成され、面板と対向して配置さ
れた絶縁基板の放電空間を形成する内壁面に被着された
蛍光体が発光する。According to the flat light source configured as in the present invention, an electrode made of a transparent conductive film is formed on the inner surface of the light-transmitting face plate serving as the light-emitting surface, and is arranged to face the face plate. The phosphor attached to the inner wall surface forming the discharge space of the insulating substrate emits light.
【０００８】発光面に形成されている電極は透明である
ので、蛍光体の発光を減少させないと共に、蛍光体の発
光は反射光を利用するので高輝度化が図れる。Since the electrodes formed on the light emitting surface are transparent, the light emission of the phosphor is not reduced, and the luminance of the phosphor is increased by utilizing the reflected light.
【０００９】また、放電は蛍光体が塗布されていない面
板で発生し、面板上で面放電を行うため、蛍光体への荷
電粒子の衝突がほとんどなくなる。このため、蛍光体の
劣化が少なくなり、輝度の低下が少なく長寿命になる。In addition, since the discharge is generated on the face plate on which the phosphor is not applied and the surface discharge is performed on the face plate, the collision of the charged particles with the phosphor is almost eliminated. For this reason, the phosphor is less deteriorated, and the luminance is less reduced and the life is longer.
【００１０】また、電極間は陽光柱が発生するよう充分
長く配置してあり、放電時は陽光柱を利用して蛍光体を
発光させるので、高輝度、高効率になり低消費電力化が
可能になる。The distance between the electrodes is arranged long enough to generate a positive column. At the time of discharge, the phosphor is emitted by using the positive column, so that high brightness, high efficiency and low power consumption are possible. become.
【００１１】[0011]
【発明の実施の形態】つぎに本発明の実施例を図面と共
に説明する。図１は本発明による平板型光源の一実施例
を示す断面斜視図である。図において、１０はソーダガ
ラス等からなる透光性の面板（以下、面板と称する）
で、内面にはネサ膜またはＩＴＯ膜等からなる透明導電
膜の電極２０が設けられており、さらにその表面全面に
は透光性の誘電体層３０が、例えば厚膜印刷法で形成さ
れている。４０はソーダガラスやセラミック等からなる
絶縁基板で、放電空間を区画して放電路５０が電極２０
と交叉する方向に並んでおり、放電路５０の内壁面には
放電で発生した紫外線で発光する蛍光体６０が塗布され
ている。前記面板１０と前記絶縁基板４０とは、例えば
低融点ガラス等（図示せず）を用いて一体に気密封着さ
れ、放電路５０内にはキセノン、クリプトン、アルゴ
ン、ヘリウム、ネオン等の希ガス、又は水銀と始動用ガ
スとしてアルゴンやネオン−アルゴン等の混合ガスが封
入されている。希ガスは要求される特性により単体また
は二種類以上混合して封入する。封入圧力は、１ｋＰａ
から１００ｋＰａの範囲で、適当な圧力を選択すればよ
い。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional perspective view showing an embodiment of the flat light source according to the present invention. In the figure, reference numeral 10 denotes a translucent face plate made of soda glass or the like (hereinafter, referred to as a face plate).
An electrode 20 of a transparent conductive film made of a Nesa film or an ITO film or the like is provided on the inner surface, and a translucent dielectric layer 30 is further formed on the entire surface by, for example, a thick film printing method. I have. Reference numeral 40 denotes an insulating substrate made of soda glass, ceramic, or the like, which divides a discharge space and forms a discharge path 50 on the electrode 20.
The fluorescent material 60 that emits ultraviolet light generated by the discharge is applied to the inner wall surface of the discharge path 50. The face plate 10 and the insulating substrate 40 are integrally hermetically sealed using, for example, low-melting glass (not shown), and a rare gas such as xenon, krypton, argon, helium, or neon is provided in the discharge path 50. Or a mixed gas of mercury and a starting gas such as argon or neon-argon. The rare gas is enclosed alone or in a mixture of two or more types depending on required characteristics. The filling pressure is 1 kPa
An appropriate pressure may be selected in the range from 1 to 100 kPa.
【００１２】本発明の平板型光源によれば、発光面とな
る面板１０に形成されている電極は透明であるので蛍光
体の発光を減少させないと共に、蛍光体の発光は反射光
を利用するので面輝度で10,000ｃｄ／ｍ2以上と高輝度
化が図れ、明るいディスプレイが得られる。According to the flat light source of the present invention, since the electrodes formed on the face plate 10 which is the light emitting surface are transparent, the light emission of the phosphor is not reduced, and the light emission of the phosphor utilizes reflected light. The surface luminance can be increased to 10,000 cd / m 2 or more, and a bright display can be obtained.
【００１３】放電路５０の寸法は、輝度や表示画面の大
きさにもよるが、深さは０．１mmから５mm程度が利用範
囲で、なかでも１mmから３mmの範囲がバックライト用と
して輝度、効率両者から望ましい。放電路５０のピッチ
は、深さと同じ位から大気圧の差圧で面板が破損しない
程度までの間の適当な長さでよい。また、駆動周波数
は、10ｋＨｚから500ｋＨｚで、正弦波か矩形波、また
はパルス電圧を印加して電界放電を行わせる。駆動回路
の電流容量によっては、透明導電膜２０は図２に示した
ように、分割して両側から取り出したり、途中に複数本
設けても良い。The size of the discharge path 50 depends on the brightness and the size of the display screen, but the depth is about 0.1 mm to 5 mm in the usable range. Desirable for both efficiency. The pitch of the discharge path 50 may be an appropriate length from about the same as the depth to a level at which the face plate is not damaged by the differential pressure of the atmospheric pressure. The driving frequency is 10 kHz to 500 kHz, and electric field discharge is performed by applying a sine wave, a rectangular wave, or a pulse voltage. Depending on the current capacity of the drive circuit, the transparent conductive film 20 may be divided and taken out from both sides as shown in FIG.
【００１４】さらに面板１０の内面に設けられた透光性
の誘電体層３０の表面をＭｇＯ等の保護層（図示せず）
で覆ってやることで、動作電圧の低下、スパッタの減少
が可能になり、さらに長寿命の平板型光源になる。Further, the surface of the light-transmitting dielectric layer 30 provided on the inner surface of the face plate 10 is covered with a protective layer (not shown) of MgO or the like.
In this case, the operating voltage can be reduced and sputtering can be reduced, and a long-life flat-plate light source can be obtained.
【００１５】図３（ａ）、（ｂ）、（ｃ）は面板に電極
を形成した状態の部分平面図で、面板１０の内面に形成
されたＩＴＯ膜やネサ膜等の透明導電膜２０の上に重ね
て細い線状の電極７０や、ストライプ状電極７１、メッ
シュ状電極７２等の金属電極を形成したものである。本
構成にすることで、透明導電膜２０の抵抗が高くても金
属電極の抵抗が小さく、電極２０全面がほぼ同電位にな
る。この結果、放電の均一性を増すことができ、発光の
均斉度を良くすることが出来る。また、放電電流を増加
した場合でも透明導電膜２０での抵抗損を減少できる。
８０は電力導入用の端子で外部に出ている。FIGS. 3A, 3B, and 3C are partial plan views showing a state in which electrodes are formed on the face plate. The transparent conductive film 20 such as an ITO film or a Nesa film formed on the inner surface of the face plate 10 is shown in FIG. Metal electrodes such as a thin linear electrode 70, a stripe electrode 71, and a mesh electrode 72 are formed on top of each other. With this configuration, even if the resistance of the transparent conductive film 20 is high, the resistance of the metal electrode is small, and the entire surface of the electrode 20 has substantially the same potential. As a result, the uniformity of discharge can be increased, and the uniformity of light emission can be improved. Further, even when the discharge current is increased, the resistance loss in the transparent conductive film 20 can be reduced.
Reference numeral 80 denotes a terminal for introducing electric power, which is outside.
【００１６】図４は本発明による平板型光源の放電路の
断面を示したもので、絶縁基板４０に設けられた放電路
５０の断面の基本形状が、面板に向かって開くような勾
配や曲面、又はそれらを組合せた形状を有し、（ａ）は
矩形とテーパを組み合わせたもの、（ｂ）は半円筒状の
放電路５０を並べた例である。本構造にすることで、放
電路５０の壁面に塗布された蛍光体６０の発光が有効に
表示面側に取り出せ、高輝度化が達成できる。また、放
電路が設けられている絶縁基板を、フォルステライト等
の白色系のセラミックスで形成すれば反射率が良く、さ
らに高輝度化が図れる。FIG. 4 shows a cross section of the discharge path of the flat light source according to the present invention. The basic shape of the cross section of the discharge path 50 provided on the insulating substrate 40 is such that the slope or the curved surface opens toward the face plate. Or (a) is a combination of a rectangle and a taper, and (b) is an example in which semi-cylindrical discharge paths 50 are arranged. With this structure, the light emission of the phosphor 60 applied to the wall surface of the discharge path 50 can be effectively extracted to the display surface side, and high luminance can be achieved. Further, if the insulating substrate provided with the discharge path is formed of a white ceramic such as forsterite, the reflectance is good and the luminance can be further increased.
【００１７】図５は本発明による平板型光源の別の実施
例を示す放電路の断面図で、絶縁基板４１はソーダガラ
ス等を用い、金型上で加熱成形したり、プレス成形した
り、溶融したガラスを型に注入して成形する等の方法で
半円筒状や波形の放電路５０を製作することが出来る。
本実施例のように、絶縁基板にガラス等の透光性を有す
る絶縁材料で構成する場合、裏面に、例えばアルミニウ
ムのような反射膜９０を設けてやれば発光面１０の輝度
を増加させることができる。FIG. 5 is a sectional view of a discharge path showing another embodiment of the flat light source according to the present invention. The insulating substrate 41 is made of soda glass or the like, and is formed by heating or pressing on a metal mold. The semi-cylindrical or corrugated discharge path 50 can be manufactured by, for example, pouring the molten glass into a mold and molding.
When the insulating substrate is made of a light-transmitting insulating material such as glass as in the present embodiment, the brightness of the light emitting surface 10 can be increased by providing a reflective film 90 such as aluminum on the back surface. Can be.
【００１８】図６は本発明による絶縁基板の別の実施例
を示す断面図で、放電路を有する絶縁基板を製作する
際、平板状の絶縁板４２と、放電空間を区画する三角形
の仕切り板４３と、外界と密封する外枠体４４とを並べ
て形成したもので、これらは、例えば低融点ガラスフリ
ットで接着して一体にすればよい。仕切り板４３はガラ
スやセラミックの丸棒等を用いてもよい。本構成にすれ
ば、単純な部品を用いることで、簡単に絶縁基板を作成
できる利点がある。FIG. 6 is a sectional view showing another embodiment of the insulating substrate according to the present invention. When manufacturing an insulating substrate having a discharge path, a flat insulating plate 42 and a triangular partition plate for partitioning a discharge space are provided. 43 and an outer frame body 44 for sealing with the outside world are formed side by side, and these may be integrated by bonding with, for example, a low melting point glass frit. The partition plate 43 may use a glass or ceramic round bar or the like. With this configuration, there is an advantage that an insulating substrate can be easily formed by using simple components.
【００１９】図７は、本発明による平板型光源の他の実
施例を示す図で、放電路５０の軸方向（長手方向）の断
面図で、発光面となる透光性を有する面板１０の内面に
形成された透明導電膜からなる電極２０と、該透明導電
膜を覆って設けられた透光性を有する誘電体層３０から
なり、絶縁基板４０の内壁面には蛍光体６０が被着され
ているとともに、前記誘電体層３０が放電空間５０に面
した部分で、前記電極２０以外の表面に蛍光体６１を被
着したことを特徴とする。本構成によれば、電極２０の
上には蛍光体６１が塗布されていないため輝度劣化が少
ない。また、蛍光体の被着面積が多くなり明るくなる。
さらに、蛍光体が光拡散効果を出し、発光面の均斉度が
向上する効果もある。但し、面板１０の蛍光体６１は薄
く塗布することが重要で、厚くなると明るさが逆に減少
するので注意が必要である。FIG. 7 is a view showing another embodiment of the flat light source according to the present invention. FIG. 7 is a sectional view of the discharge path 50 in the axial direction (longitudinal direction). An electrode 20 made of a transparent conductive film formed on the inner surface, and a light-transmitting dielectric layer 30 provided over the transparent conductive film, and a phosphor 60 is adhered to the inner wall surface of the insulating substrate 40. In addition, a phosphor 61 is applied to a surface other than the electrode 20 at a portion where the dielectric layer 30 faces the discharge space 50. According to this configuration, since the phosphor 61 is not applied on the electrode 20, the luminance is less deteriorated. In addition, the phosphor adhered area increases and the phosphor becomes bright.
In addition, the phosphor exerts a light diffusion effect, and has an effect of improving the uniformity of the light emitting surface. However, it is important to apply the phosphor 61 of the face plate 10 thinly.
【００２０】また、動作時の温度が40℃を越えるような
場合、例えばIn-Hg、Bi-In-Hg、Bi-Pb-Sn-Hg、Zn-Hg等
の水銀アマルガムを内部に封入すれば水銀の蒸気圧を最
適な値に制御でき、発光効率を低下させることがない。When the operating temperature exceeds 40 ° C., for example, mercury amalgam such as In-Hg, Bi-In-Hg, Bi-Pb-Sn-Hg, Zn-Hg, etc. The vapor pressure of mercury can be controlled to an optimum value, and the luminous efficiency does not decrease.
【００２１】以上、実施例で述べたように、本発明によ
る平板型光源は、簡単な構造で装置を薄形軽量にできる
と共に、装置製作時のコスト低下が図れ、信頼性が高
く、高輝度、高効率、長寿命の平板型光源が得られる。As described above, the flat light source according to the present invention can reduce the thickness and weight of the device with a simple structure, reduce the cost in manufacturing the device, and have high reliability and high brightness. Thus, a flat light source with high efficiency and long life can be obtained.
【００２２】[0022]
【発明の効果】以上説明したように、本発明における平
板型光源によれば、発光面に形成されている電極は透明
であるので、蛍光体の発光を減少させないと共に、蛍光
体の発光は反射光を利用するので高輝度化が図れ、明る
いディスプレイが得られる。As described above, according to the flat light source of the present invention, since the electrode formed on the light emitting surface is transparent, the light emission of the phosphor is not reduced and the light emission of the phosphor is reflected. Since light is used, high luminance can be achieved, and a bright display can be obtained.
【００２３】また、放電は蛍光体が塗布されていない前
面板で発生し、蛍光体への荷電粒子の衝突がほとんどな
くなるため、蛍光体の劣化が少なくなり、輝度の低下を
大幅に抑えられるので長寿命になる。In addition, since the discharge occurs on the front plate on which the phosphor is not applied and the charged particles hardly collide with the phosphor, deterioration of the phosphor is reduced, and a decrease in luminance is greatly suppressed. Long life.
【００２４】また、放電は陽光柱を利用して蛍光体を発
光させるので、高輝度、高効率になり低消費電力化が可
能になる。In addition, since the discharge uses the positive column to emit light from the phosphor, high luminance and high efficiency can be achieved and low power consumption can be achieved.
【００２５】さらに部品点数が少なく装置製作時のコス
ト低下が図れる効果もある。Further, there is an effect that the number of parts is small and the cost for manufacturing the apparatus can be reduced.
【００２６】この結果、簡単な構造であるので信頼性が
高く、高輝度、高効率、長寿命の平板型光源が得られ
る。As a result, a flat light source with high reliability, high luminance, high efficiency and long life can be obtained because of its simple structure.
【００２７】[0027]
【図１】本発明による平板型光源の一実施例を示す断面
斜視図である。FIG. 1 is a sectional perspective view showing one embodiment of a flat light source according to the present invention.
【図２】本発明による平板型光源の面板の別の実施例を
示す平面図である。FIG. 2 is a plan view showing another embodiment of the face plate of the flat light source according to the present invention.
【図３】本発明による平板型光源の別の実施例を示す部
分平面図である。FIG. 3 is a partial plan view showing another embodiment of the flat light source according to the present invention.
【図４】本発明による平板型光源の絶縁基板の別の実施
例を示す断面図である。FIG. 4 is a sectional view showing another embodiment of the insulating substrate of the flat light source according to the present invention.
【図５】本発明による平板型光源の別の実施例を示す断
面図である。FIG. 5 is a sectional view showing another embodiment of the flat light source according to the present invention.
【図６】本発明による平板型光源の絶縁基板の別の実施
例を示す断面図である。FIG. 6 is a sectional view showing another embodiment of the insulating substrate of the flat light source according to the present invention.
【図７】本発明による平板型光源の別の実施例を示す断
面図である。FIG. 7 is a sectional view showing another embodiment of the flat light source according to the present invention.
【図８】従来の平板型光源を示す断面図である。FIG. 8 is a cross-sectional view showing a conventional flat light source.
１０……透光性面板 ２０……透明導電膜 ３０……誘電体層 ４０……絶縁基板 ４２……仕切り板 ４３……外枠体 ５０……放電路 ６０……蛍光体 ７０……金属電極 ８０……端子 ９０……反射膜 １００……前面平面基板 １１０……背面基板 Reference Signs List 10 translucent face plate 20 transparent conductive film 30 dielectric layer 40 insulating substrate 42 partition plate 43 outer frame 50 discharge path 60 phosphor 70 metal electrode 80 terminal 90 reflective film 100 front flat substrate 110 rear substrate
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０１Ｊ 61/067 Ｈ０１Ｊ 61/16 Ｎ 61/16 Ｌ 61/28 Ｌ 61/28 61/35 Ｆ 61/35 Ｌ 61/92 Ｊ 61/92 Ｇ０２Ｆ 1/1335 ５３０ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H01J 61/067 H01J 61/16 N 61/16 L 61/28 L 61/28 61/35 F 61/35 L 61/92 J 61/92 G02F 1/1335 530
Claims (11)
板の内面に形成された複数の透明導電膜からなる電極
と、該透明導電膜が外部電極部とされる部分以外を覆っ
て設けられた透光性を有する誘電体層と、前記面板と対
向して配置された絶縁基板と、該絶縁基板に被着された
蛍光体とからなり、前記面板と前記絶縁基板とが一体に
封着され、内部に希ガス、又は希ガスと水銀が封入され
ていることを特徴とする電界放電型の平板型光源。1. A light-transmitting face plate serving as a light emitting surface, an electrode formed of a plurality of transparent conductive films formed on an inner surface of the face plate, and a portion other than a portion where the transparent conductive film serves as an external electrode portion. A dielectric layer having a light-transmitting property provided thereon, an insulating substrate disposed to face the face plate, and a phosphor adhered to the insulating substrate, wherein the face plate and the insulating substrate are integrated. A rare gas, or a rare gas and mercury are sealed therein.
板の内面に形成された複数の透明導電膜からなる電極
と、該透明導電膜が外部電極部とされる部分以外を覆っ
て設けられた透光性を有する誘電体層と、前記面板と対
向して配置され、前記面板と一体に封着されて放電空間
を構成する絶縁基板からなり、前記放電空間を区画して
設けられた複数の放電路と、該放電路の内壁面に被着さ
れた蛍光体とを有し、内部に希ガス、又は希ガスと水銀
が封入されていることを特徴とする電界放電型の平板型
光源。2. A light-transmitting face plate serving as a light-emitting surface, an electrode comprising a plurality of transparent conductive films formed on the inner surface of the face plate, and a portion other than a portion where the transparent conductive film is used as an external electrode portion. A dielectric layer having a light-transmitting property, and an insulating substrate which is disposed to face the face plate and is integrally sealed with the face plate to form a discharge space, and is provided so as to partition the discharge space. A plurality of discharge paths, and a phosphor adhered to the inner wall surface of the discharge path, and a rare gas, or a rare gas and mercury are sealed therein. Flat light source.
アルゴン、ヘリウム、ネオン等の希ガスを単体で用いる
か、２種類以上の希ガスを混合して用いたことを特徴と
する請求項１又は請求項２記載の平板型光源。3. A method according to claim 1, wherein xenon, krypton,
3. The flat light source according to claim 1, wherein a rare gas such as argon, helium, or neon is used alone or a mixture of two or more rare gases is used.
の上に重ねてストライプ状やメッシュ状等の金属電極を
形成したのち透光性の誘電体層を設けたことを特徴とす
る請求項１から請求項３記載の平板型光源。4. A light-transmitting dielectric layer is formed after a stripe-shaped or mesh-shaped metal electrode is formed on a plurality of transparent conductive films formed on an inner surface of a face plate. The flat light source according to claim 1.
が、面板に向かって開くような勾配や曲面、又はそれら
を組合せた形状に形成したことを特徴とする請求項１か
ら請求項４記載の平板型光源。5. A discharge path provided on an insulating substrate, wherein a cross-sectional shape of the discharge path is formed to have a slope or a curved surface that opens toward a face plate, or a combination thereof. A flat light source as described.
の表面を保護層で覆ったことを特徴とする請求項１から
請求項５記載の平板型光源。6. The flat light source according to claim 1, wherein the surface of the light-transmitting dielectric layer provided on the inner surface of the face plate is covered with a protective layer.
系のセラミックスで形成したことを特徴とする請求項１
から請求項６記載の平板型光源。7. An insulating substrate provided with a discharge path is formed of a white ceramic.
The flat light source according to claim 6.
板に放電空間を区画する仕切り板を並べて複数の放電路
を形成し、外界と密封する外枠体とを備えたことを特徴
とする請求項１から請求項７記載の平板型光源。8. An insulating substrate having a discharge path, comprising a plurality of discharge paths formed by arranging a partition plate for partitioning a discharge space on a flat insulating plate, and comprising an outer frame body for sealing with the outside world. The flat light source according to claim 1, wherein:
形成された複数の透明導電膜からなる電極と、該透明導
電膜が外部電極部とされる部分以外を覆って設けられた
透光性を有する誘電体層からなり、前記誘電体層が放電
空間に面した部分で、前記電極部以外の表面に蛍光体を
被着したことを特徴とする請求項１から請求項８記載の
平板型光源。9. An electrode comprising a plurality of transparent conductive films formed on an inner surface of a light-transmitting face plate serving as a light-emitting surface, and the transparent conductive film is provided so as to cover portions other than an external electrode portion. 9. A phosphor comprising a light-transmitting dielectric layer, wherein a phosphor is applied to a surface of the dielectric layer facing the discharge space other than the electrode portion. Flat light source.
透光性を有する絶縁材料で構成し、前記絶縁基板の外側
に光反射層を設けたことを特徴とする請求項１から請求
項９記載の平板型光源。10. An insulating substrate having a discharge path is made of a light-transmitting insulating material such as glass, and a light reflecting layer is provided outside the insulating substrate. 9. The flat light source according to 9.
特徴とする請求項１から請求項１０記載の平板型光源。11. A flat light source according to claim 1, wherein a mercury amalgam is encapsulated therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210232A JP2000082441A (en) | 1999-07-26 | 1999-07-26 | Flat plate light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210232A JP2000082441A (en) | 1999-07-26 | 1999-07-26 | Flat plate light source |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7173175A Division JP3026416B2 (en) | 1995-07-10 | 1995-07-10 | Flat light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000082441A true JP2000082441A (en) | 2000-03-21 |
Family
ID=16585983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11210232A Pending JP2000082441A (en) | 1999-07-26 | 1999-07-26 | Flat plate light source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000082441A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030017007A (en) * | 2001-08-23 | 2003-03-03 | 한국 기술교류 주식회사 | Method for simultaneously anastomosing upper and bottom plates of discharge tube of plane lumination apparatus and apparatus thereof |
| KR20030017008A (en) * | 2001-08-23 | 2003-03-03 | 한국 기술교류 주식회사 | Method for anastomosing upper and bottom plates of plane discharge tube |
| KR100437954B1 (en) * | 2002-08-09 | 2004-07-01 | 주식회사 엘에스텍 | Flat type fluorescent lamp and lamp assembly applying the same |
| KR100451628B1 (en) * | 2001-10-22 | 2004-10-08 | 주식회사 지엘디 | Florescent Lamp with External Electrode for LCD and Back Light Device using of it |
| KR100456659B1 (en) * | 2001-10-18 | 2004-11-10 | 주식회사 엘에스텍 | Back light |
| JP2005338768A (en) * | 2004-05-24 | 2005-12-08 | Samsung Electronics Co Ltd | Surface light source device and liquid crystal display apparatus having same |
| US7042167B2 (en) | 2003-12-18 | 2006-05-09 | Ls Tech Co., Ltd. | Back light device for liquid crystal displays |
| US7215079B2 (en) | 2004-02-20 | 2007-05-08 | Ls Tech Co., Ltd. | Flat fluorescent lamp requiring low discharge initiating voltage and backlight unit having uniform brightness |
| KR100744459B1 (en) | 2005-09-14 | 2007-08-01 | 엘지마이크론 주식회사 | Apparatus and manufacture method for surface emission |
| KR100746449B1 (en) * | 2004-03-11 | 2007-08-03 | 삼성코닝 주식회사 | Surface light source device and back light unit having the same |
| US7259518B2 (en) | 2004-06-24 | 2007-08-21 | Ls Tech Co. Ltd. | Flat fluorescent lamp with improved discharge efficiency |
| US7271531B2 (en) * | 2003-11-26 | 2007-09-18 | Samsung Corning Co., Ltd. | Surface light source device, method of manufacturing the same and back light unit having the same |
| KR100766920B1 (en) | 2004-09-15 | 2007-10-17 | 삼성에스디아이 주식회사 | A flat fluorescent lamp |
| KR100769189B1 (en) * | 2002-12-31 | 2007-10-23 | 한국과학기술원 | Flat type fluorescent lamp and method for manufacturing the same |
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-
1999
- 1999-07-26 JP JP11210232A patent/JP2000082441A/en active Pending
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|---|---|---|---|---|
| KR20030017008A (en) * | 2001-08-23 | 2003-03-03 | 한국 기술교류 주식회사 | Method for anastomosing upper and bottom plates of plane discharge tube |
| KR20030017007A (en) * | 2001-08-23 | 2003-03-03 | 한국 기술교류 주식회사 | Method for simultaneously anastomosing upper and bottom plates of discharge tube of plane lumination apparatus and apparatus thereof |
| KR100456659B1 (en) * | 2001-10-18 | 2004-11-10 | 주식회사 엘에스텍 | Back light |
| KR100451628B1 (en) * | 2001-10-22 | 2004-10-08 | 주식회사 지엘디 | Florescent Lamp with External Electrode for LCD and Back Light Device using of it |
| KR100437954B1 (en) * | 2002-08-09 | 2004-07-01 | 주식회사 엘에스텍 | Flat type fluorescent lamp and lamp assembly applying the same |
| KR100769189B1 (en) * | 2002-12-31 | 2007-10-23 | 한국과학기술원 | Flat type fluorescent lamp and method for manufacturing the same |
| US7271531B2 (en) * | 2003-11-26 | 2007-09-18 | Samsung Corning Co., Ltd. | Surface light source device, method of manufacturing the same and back light unit having the same |
| US7042167B2 (en) | 2003-12-18 | 2006-05-09 | Ls Tech Co., Ltd. | Back light device for liquid crystal displays |
| US7215079B2 (en) | 2004-02-20 | 2007-05-08 | Ls Tech Co., Ltd. | Flat fluorescent lamp requiring low discharge initiating voltage and backlight unit having uniform brightness |
| KR100746449B1 (en) * | 2004-03-11 | 2007-08-03 | 삼성코닝 주식회사 | Surface light source device and back light unit having the same |
| JP2005338768A (en) * | 2004-05-24 | 2005-12-08 | Samsung Electronics Co Ltd | Surface light source device and liquid crystal display apparatus having same |
| US7259518B2 (en) | 2004-06-24 | 2007-08-21 | Ls Tech Co. Ltd. | Flat fluorescent lamp with improved discharge efficiency |
| KR100766920B1 (en) | 2004-09-15 | 2007-10-17 | 삼성에스디아이 주식회사 | A flat fluorescent lamp |
| KR100744459B1 (en) | 2005-09-14 | 2007-08-01 | 엘지마이크론 주식회사 | Apparatus and manufacture method for surface emission |
| KR100851523B1 (en) | 2006-12-21 | 2008-08-11 | 전자부품연구원 | Surface light source and Fabricating method thereof |
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