JP2000138035A - Both-side emission type fluorescent character display tube - Google Patents
Both-side emission type fluorescent character display tubeInfo
- Publication number
- JP2000138035A JP2000138035A JP10311817A JP31181798A JP2000138035A JP 2000138035 A JP2000138035 A JP 2000138035A JP 10311817 A JP10311817 A JP 10311817A JP 31181798 A JP31181798 A JP 31181798A JP 2000138035 A JP2000138035 A JP 2000138035A
- Authority
- JP
- Japan
- Prior art keywords
- control electrode
- side control
- substrate
- front plate
- emitting display
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/15—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/467—Control electrodes for flat display tubes, e.g. of the type covered by group H01J31/123
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/46—Arrangements of electrodes and associated parts for generating or controlling the electron beams
- H01J2329/4604—Control electrodes
- H01J2329/4608—Gate electrodes
- H01J2329/4613—Gate electrodes characterised by the form or structure
- H01J2329/4617—Shapes or dimensions of gate openings
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外囲器の前面板及
び基板の各内面に配設された発光表示部で発光表示が行
われる両面発光形蛍光表示管に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided fluorescent display tube in which a light-emitting display is provided by a light-emitting display section provided on a front plate of an envelope and on each inner surface of a substrate.
【０００２】[0002]
【従来の技術】従来から、実開平６−４４００１号公報
に記載されているように、互いに対向して配設され側面
板とともに真空外囲器を構成する前面板及び基板を有
し、前記前面板及び基板の各内面に前面板側発光表示部
及び基板側発光表示部を形成すると共に、前記前面板側
発光表示部及び前記基板側発光表示部に各々対向して前
面板側制御電極及び基板側制御電極を配設した両面発光
形蛍光表示管が、オーディオ機器等の各種表示装置とし
て使用されている。2. Description of the Related Art Conventionally, as described in Japanese Utility Model Application Laid-Open No. 6-44001, a front plate and a substrate which are disposed to face each other and constitute a vacuum envelope together with side plates are provided. A front plate side light emitting display section and a substrate side light emitting display section are formed on each inner surface of the face plate and the substrate, and a front plate side control electrode and a substrate are respectively opposed to the front plate side light emitting display section and the board side light emitting display section. 2. Description of the Related Art Dual-sided fluorescent display tubes provided with side control electrodes are used as various display devices such as audio equipment.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の両面発光形
蛍光表示管においては、図５に前記制御電極の部分拡大
平面図を示すように、前面板側制御電極５０１及び基板
側制御電極５０２の双方が、六角形状の複数の孔５０
５、５０６を有するハニカム構造のメッシュ電極によっ
て構成されており又、基板側発光表示部の視認性を良く
するために両制御電極５０１、５０２の孔５０５、５０
６が同一の大きさに構成され、前面側から見た場合に両
制御電極５０１、５０２の連結部５０３、５０４が重な
るように配置されている。In the conventional double-sided light emitting fluorescent display tube, as shown in FIG. 5, a partially enlarged plan view of the control electrode is provided with a front plate side control electrode 501 and a substrate side control electrode 502. Both have a plurality of hexagonal holes 50.
5 and 506, and the holes 505 and 50 of both control electrodes 501 and 502 to improve the visibility of the substrate-side light-emitting display unit.
6 have the same size, and are arranged such that the connection portions 503 and 504 of the control electrodes 501 and 502 overlap when viewed from the front side.
【０００４】しかしながら、図５に示すように、前面板
側制御電極５０１と基板側制御電極の相対的な取付位置
にずれが生じた場合、前面板側制御電極５０１の孔と基
板側制御電極５０２の孔が相対的に一様にずれるため、
前面板側制御電極５０１の連結部５０３が基板側制御電
極５０２の孔の上部に位置するようになり、前面板側か
ら見た場合、基板側制御電極５０２の孔５０６の一部分
が前面板側制御電極５０１の連結部５０３によって一様
に隠れてしまい、基板側発光表示部の表示が大きく妨げ
られられるという問題があった。[0005] However, as shown in FIG. 5, when a relative mounting position between the front plate side control electrode 501 and the board side control electrode is shifted, the hole of the front plate side control electrode 501 and the board side control electrode 502 are displaced. Because the holes of the
The connecting portion 503 of the front plate side control electrode 501 is located above the hole of the substrate side control electrode 502. When viewed from the front plate side, a part of the hole 506 of the board side control electrode 502 controls the front plate side control. There is a problem in that the light is uniformly hidden by the connection portion 503 of the electrode 501, and display on the substrate-side light-emitting display portion is largely hindered.
【０００５】本発明は、前面板側制御電極と基板側制御
電極の取付位置が相対的にずれた場合でも、基板側発光
表示部の表示の妨げとなる度合いを小さく抑えるように
した両面発光形蛍光表示管を提供することを課題として
いる。The present invention is directed to a double-sided light emitting type in which even if the mounting positions of the front panel side control electrodes and the substrate side control electrodes are relatively displaced, the degree of hindering the display of the substrate side light emitting display section is reduced. It is an object to provide a fluorescent display tube.
【０００６】[0006]
【課題を解決するための手段】本発明の両面発光形蛍光
表示管は、互いに対向して配設され側面板とともに外囲
器を構成する前面板及び基板を有し、前記前面板及び基
板の各内面に前面板側発光表示部及び基板側発光表示部
を形成すると共に、前記前面板側発光表示部及び前記基
板側発光表示部に各々対向してメッシュ状の前面板側制
御電極及び基板側制御電極を配設した両面発光形蛍光表
示管において、前記前面板側制御電極と前記基板側制御
電極におけるメッシュの孔形状または孔の大きさが相互
に異なることを特徴としている。前記前面板側制御電極
と前記基板側制御電極の取付位置がずれた場合でも、前
面板側制御電極と基板側制御電極の孔は一様には重なら
ないため、基板側発光表示部の表示の妨げとなる度合い
が小さく抑えられる。According to the present invention, there is provided a dual emission type fluorescent display tube having a front plate and a substrate which are disposed to face each other and form an envelope together with a side plate. A front panel side light emitting display section and a substrate side light emitting display section are formed on each inner surface, and a mesh front panel side control electrode and a board side opposing the front panel side light emitting display section and the board side light emitting display section, respectively. In the double-sided light emitting fluorescent display tube provided with the control electrode, the hole shape or the hole size of the mesh in the front plate side control electrode and the substrate side control electrode is different from each other. Even when the mounting positions of the front-plate-side control electrode and the board-side control electrode are shifted, the holes of the front-plate-side control electrode and the board-side control electrode do not evenly overlap. The degree of hindrance can be kept small.
【０００７】前記前面板側制御電極と前記基板側制御電
極の開口率が相互に異なるように構成してもよい。ま
た、前記前面板側制御電極の開口率が前記基板側制御電
極の開口率よりも大きくなるように構成してもよい。[0007] The front plate side control electrode and the substrate side control electrode may have a different aperture ratio from each other. Further, the aperture ratio of the front plate side control electrode may be configured to be larger than the aperture ratio of the substrate side control electrode.
【０００８】[0008]
【発明の実施の形態】図１は、本発明の実施の形態に係
る両面発光形蛍光表示管の正断面図である。図１におい
て、前面側に位置する前面板１０２の内面上には蛍光体
１０７が被着された透光性を有する複数の陽極電極１０
６が配設されている。蛍光体１０７及び陽極電極１０６
は前面板側発光表示部１０８を構成している。各前面板
側発光表示部１０８に対向して複数の前面板側制御電極
１０９が配設されている。FIG. 1 is a front sectional view of a dual emission fluorescent display tube according to an embodiment of the present invention. In FIG. 1, a plurality of light-transmissive anode electrodes 10 on which phosphors 107 are attached are provided on the inner surface of a front plate 102 located on the front side.
6 are provided. Phosphor 107 and anode electrode 106
Constitutes the front panel side light emitting display unit 108. A plurality of front-panel-side control electrodes 109 are arranged to face each front-panel-side light-emitting display unit 108.
【０００９】一方、背面側に位置する基板１０３の内面
上には、蛍光体１１０が被着された複数の陽極電極１１
１が配設されている。蛍光体１１０及び陽極電極１１１
は基板側発光表示部１１２を構成している。各基板側発
光表示部１１２に対向して複数の基板側制御電極１１３
が配設されている。On the other hand, a plurality of anode electrodes 11 on which phosphors 110 are attached
1 is provided. Phosphor 110 and anode electrode 111
Constitutes the substrate-side light emitting display section 112. A plurality of substrate-side control electrodes 113 are opposed to each substrate-side light emitting display unit 112.
Are arranged.
【００１０】前面板側制御電極１０９と基板側制御電極
１１３は対向配設され、その間には、電子を放出するた
めの複数の陰極電極１１４が配設されている。また、前
記各電極は、複数の外部端子１１５に接続されている。
尚、前面板１０２、基板１０３、前面板１０２及び基板
１０３の周囲を囲む側面板１０４、１０５は前記各電極
を真空雰囲気中に保持する外囲器を構成している。The front-plate-side control electrode 109 and the substrate-side control electrode 113 are disposed to face each other, and a plurality of cathode electrodes 114 for emitting electrons are disposed between them. Each of the electrodes is connected to a plurality of external terminals 115.
The front plate 102, the substrate 103, and the side plates 104 and 105 surrounding the front plate 102 and the substrate 103 constitute an envelope that holds the electrodes in a vacuum atmosphere.
【００１１】図２は、前面板側制御電極１０９及び基板
側制御電極１１３として使用する制御電極２０１の概略
構成を示す平面図で、前面板１０２及び基板１０３上に
直接固着し、外部端子１１５との接続は前面板１０２及
び基板１０３に形成された配線パターンを介して行う自
立形制御電極の例を示している。制御電極２０１は４２
−６合金によって形成され、略全面にわたってメッシュ
部２０２が形成されている。FIG. 2 is a plan view showing a schematic structure of the control electrode 201 used as the front-plate-side control electrode 109 and the substrate-side control electrode 113. The control electrode 201 is directly fixed on the front plate 102 and the substrate 103, and the external terminals 115 and 3 shows an example of a self-supporting control electrode that is connected via a wiring pattern formed on the front plate 102 and the substrate 103. The control electrode 201 is 42
The mesh portion 202 is formed substantially over the entire surface.
【００１２】図３は、本発明の第１の実施の形態に係る
両面発光形蛍光表示管に使用する制御電極２０１のメッ
シュ部２０２の部分拡大平面図である。ここで、図３
（ａ）は前面板側制御電極１０９として使用する制御電
極２０１のメッシュ部２０２を示しており、連結部３０
２によって六角形状の複数の孔３０１を形成したハニカ
ム構造となっている。また、孔３０１の一辺の長さＡは
０．２５ｍｍ、連結部３０２の幅は３０μｍに形成され
ている。FIG. 3 is a partially enlarged plan view of the mesh portion 202 of the control electrode 201 used in the dual emission type fluorescent display tube according to the first embodiment of the present invention. Here, FIG.
(A) shows the mesh part 202 of the control electrode 201 used as the front plate side control electrode 109,
2 form a honeycomb structure in which a plurality of hexagonal holes 301 are formed. The length A of one side of the hole 301 is 0.25 mm, and the width of the connecting portion 302 is 30 μm.
【００１３】一方、図３（ｂ）は基板側制御電極１１３
として使用する制御電極２０１のメッシュ部２０２を示
しており、図３（ａ）と同様に連結部３０４によって六
角形状の複数の孔３０３を形成したハニカム構造となっ
ている。孔３０３の一辺の長さＢは０．２ｍｍ、連結部
３０４の幅は３０μｍに形成されており、孔３０３は孔
３０１よりも小さく形成されている。On the other hand, FIG. 3B shows the control electrode 113 on the substrate side.
3A shows a mesh structure 202 of the control electrode 201, which has a honeycomb structure in which a plurality of hexagonal holes 303 are formed by connecting portions 304, as in FIG. 3A. The length B of one side of the hole 303 is 0.2 mm, the width of the connecting portion 304 is 30 μm, and the hole 303 is smaller than the hole 301.
【００１４】前記のように、前面板側制御電極１０９の
メッシュ部２０２の孔３０１と基板側制御電極１１３の
メッシュ部２０２の孔３０３の形状を同一にすると共
に、大きさを異ならせるように構成することにより、前
面板側制御電極１０９と基板側制御電極１１３の相対的
な取付位置がずれた場合でも、連結部３０２は孔３０３
と一様に重なることはなくランダムに重なるため、基板
側発光表示部１１２の表示の妨げになる度合いを小さく
抑えることができる。As described above, the shape of the hole 301 of the mesh portion 202 of the front plate side control electrode 109 and the shape of the hole 303 of the mesh portion 202 of the substrate side control electrode 113 are made the same, and the sizes are made different. By doing so, even if the relative mounting positions of the front-panel-side control electrode 109 and the board-side control electrode 113 are deviated, the connecting portion 302 is
Since it does not overlap uniformly but overlaps at random, the degree of obstruction of the display of the substrate-side light-emitting display unit 112 can be suppressed to be small.
【００１５】また、前面板側制御電極１０９の孔３０１
を基板側制御電極１１３の孔３０３よりも大きくして前
面板側制御電極１０９の開口率を基板側制御電極１１３
の開口率よりも大きくすることにより、基板側発光表示
部１１２の光透過率が大きくなり視認性が向上する。Further, the hole 301 of the front plate side control electrode 109 is formed.
Is made larger than the hole 303 of the substrate side control electrode 113 so that the aperture ratio of the front plate side control electrode 109 is increased.
By increasing the aperture ratio, the light transmittance of the substrate-side light emitting display unit 112 is increased, and the visibility is improved.
【００１６】図４は、本発明の第２の実施の形態に係る
両面形蛍光表示管に使用する制御電極２０１のメッシュ
部２０２の部分拡大平面図である。ここで、図４（ａ）
は前面板側制御電極１０９として使用する制御電極２０
１のメッシュ部２０２を示しており、連結部４０２によ
って四角形状の複数の孔４０１を形成した格子状の構造
となっている。孔４０１の長辺Ｃは１．１ｍｍ、短辺Ｄ
は０．２ｍｍ、連結部４０２の幅は３０μｍに形成され
ている。FIG. 4 is a partially enlarged plan view of a mesh portion 202 of a control electrode 201 used in a double-sided fluorescent display tube according to a second embodiment of the present invention. Here, FIG.
Denotes a control electrode 20 used as the front plate side control electrode 109
One mesh portion 202 is shown, and has a lattice-like structure in which a plurality of rectangular holes 401 are formed by connecting portions 402. The long side C of the hole 401 is 1.1 mm and the short side D
Is 0.2 mm, and the width of the connecting portion 402 is 30 μm.
【００１７】一方、図４（ｂ）は基板側制御電極１１３
として使用する制御電極２０１のメッシュ部２０２を示
しており、連結部４０４によって六角形状の複数の孔４
０３を形成したハニカム構造となっている。孔４０３の
一辺の長さＥは０．２ｍｍ、連結部４０４の幅は３０μ
ｍに形成されており、孔４０３は孔４０１よりも小さく
形成されている。On the other hand, FIG.
The mesh part 202 of the control electrode 201 used as a hole is shown.
It has a honeycomb structure in which No. 03 is formed. The length E of one side of the hole 403 is 0.2 mm, and the width of the connecting portion 404 is 30 μm.
m, and the hole 403 is formed smaller than the hole 401.
【００１８】前記のように、前面板側制御電極１０９の
メッシュ部２０２の孔４０１と基板側制御電極１１３の
メッシュ部２０２の孔４０３の形状を異ならせることに
より、前面板側制御電極１０９と基板側制御電極１１３
の相対的な取付位置がずれた場合でも、連結部４０２は
孔４０３と一様に重なることはなくランダムに重なるた
め、基板側発光表示部１１２の表示の妨げになる度合い
を小さく抑えることができる。また、前面板側制御電極
１０９の孔４０１を基板側制御電極１１３の孔４０３よ
りも大きくして前面板側制御電極１０９の開口率を基板
側制御電極１１３の開口率よりも大きくすることによ
り、基板側発光表示部１１２の光透過率が大きくなり視
認性が向上する。As described above, the shape of the hole 401 of the mesh portion 202 of the front plate side control electrode 109 and the shape of the hole 403 of the mesh portion 202 of the substrate side control electrode 113 are made different from each other, so that the front plate side control electrode 109 and the substrate Side control electrode 113
Even when the relative mounting positions are shifted, since the connecting portion 402 does not uniformly overlap with the hole 403 but randomly overlaps, the degree of obstruction of the display of the substrate side light emitting display portion 112 can be suppressed to be small. . Also, by making the hole 401 of the front plate side control electrode 109 larger than the hole 403 of the substrate side control electrode 113 and making the aperture ratio of the front plate side control electrode 109 larger than the aperture ratio of the substrate side control electrode 113, The light transmittance of the substrate-side light emitting display unit 112 is increased, and the visibility is improved.
【００１９】[0019]
【発明の効果】本発明によれば、前面板側制御電極と基
板側制御電極の取付位置が相対的にずれた場合でも、基
板側発光表示部の表示の妨げとなる度合いを小さく抑え
ることが可能になる。また、前記前面板側制御電極の開
口率を基板側制御電極の開口率よりも大きくすることに
より、基板側発光表示部の視認性を向上させることが可
能になる。According to the present invention, even when the mounting positions of the front-panel-side control electrodes and the substrate-side control electrodes are relatively displaced, it is possible to reduce the degree of hindering the display of the substrate-side light-emitting display unit. Will be possible. Further, by making the aperture ratio of the front-plate-side control electrode larger than the aperture ratio of the substrate-side control electrode, it is possible to improve the visibility of the substrate-side light-emitting display unit.
【図１】 本発明の実施の形態に係る両面発光形蛍光表
示管の正断面図である。FIG. 1 is a front sectional view of a dual emission fluorescent display tube according to an embodiment of the present invention.
【図２】 図１の実施の形態に使用する制御電極の平面
図である。FIG. 2 is a plan view of a control electrode used in the embodiment of FIG.
【図３】 本発明の第１の実施の形態に係る両面発光形
蛍光表示管に使用する制御電極の部分拡大平面図であ
る。FIG. 3 is a partially enlarged plan view of a control electrode used in the dual emission fluorescent display tube according to the first embodiment of the present invention.
【図４】 本発明の第２の実施の形態に係る両面発光形
蛍光表示管に使用する制御電極の部分拡大平面図であ
る。FIG. 4 is a partially enlarged plan view of a control electrode used in a dual emission fluorescent display tube according to a second embodiment of the present invention.
【図５】 従来の両面発光形蛍光表示管における制御電
極の部分拡大平面図である。FIG. 5 is a partially enlarged plan view of a control electrode in a conventional dual emission fluorescent display tube.
１０１・・・外囲器 １０２・・・前面板 １０３・・・基板 １０４、１０５・・・側面板 １０６、１１０・・・陽極電極 １０８・・・前面板側発光表示部 １１２・・・基板側発光表示部 １０９・・・前面板側制御電極 １１３・・・基板側制御電極 ２０１・・・制御電極 ２０２・・・メッシュ部 101 ... envelope 102 ... front plate 103 ... substrate 104, 105 ... side plate 106, 110 ... anode electrode 108 ... front plate side light emitting display unit 112 ... substrate side Light-emitting display unit 109: front panel-side control electrode 113: substrate-side control electrode 201: control electrode 202: mesh unit
Claims (3)
外囲器を構成する前面板及び基板を有し、前記前面板及
び基板の各内面に前面板側発光表示部及び基板側発光表
示部を形成すると共に、前記前面板側発光表示部及び前
記基板側発光表示部に各々対向してメッシュ状の前面板
側制御電極及び基板側制御電極を配設した両面発光形蛍
光表示管において、 前記前面板側制御電極と前記基板側制御電極におけるメ
ッシュの孔形状または孔の大きさが相互に異なることを
特徴とする両面発光形蛍光表示管。1. A front panel-side light emitting display section and a board side light emitting display section provided on a front panel and a substrate, respectively, which are disposed to face each other and constitute an envelope together with a side panel. And a double-sided fluorescent display tube in which a front-plate-side control electrode and a substrate-side control electrode in a mesh shape are disposed opposite to the front-plate-side light-emitting display portion and the substrate-side light-emitting display portion, respectively, A double-sided fluorescent display tube characterized in that the mesh shape and the size of the mesh in the front plate side control electrode and the substrate side control electrode are different from each other.
電極の開口率が相互に異なることを特徴とする請求項１
記載の両面発光形蛍光表示管。2. The front panel-side control electrode and the substrate-side control electrode have different aperture ratios from each other.
A dual-sided fluorescent display tube as described in the above.
板側制御電極の開口率よりも大きくしたことを特徴とす
る請求項２記載の両面発光形蛍光表示管。3. The double-sided fluorescent display tube according to claim 2, wherein an aperture ratio of said front plate side control electrode is larger than an aperture ratio of said substrate side control electrode.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31181798A JP3455119B2 (en) | 1998-11-02 | 1998-11-02 | Dual-sided fluorescent display tube |
| KR1019990047885A KR100338186B1 (en) | 1998-11-02 | 1999-11-01 | Bi-planar vacuum fluorescent display |
| TW088118952A TW444222B (en) | 1998-11-02 | 1999-11-01 | Bi-planar vacuum fluorescent display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31181798A JP3455119B2 (en) | 1998-11-02 | 1998-11-02 | Dual-sided fluorescent display tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000138035A true JP2000138035A (en) | 2000-05-16 |
| JP3455119B2 JP3455119B2 (en) | 2003-10-14 |
Family
ID=18021775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31181798A Expired - Fee Related JP3455119B2 (en) | 1998-11-02 | 1998-11-02 | Dual-sided fluorescent display tube |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3455119B2 (en) |
| KR (1) | KR100338186B1 (en) |
| TW (1) | TW444222B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006040866A (en) * | 2004-07-22 | 2006-02-09 | Kofukin Seimitsu Kogyo (Shenzhen) Yugenkoshi | Field emission surface light source device and its negative electrode |
| US7638935B2 (en) | 2004-07-22 | 2009-12-29 | Tsinghua University | Field emission cathode and light source apparatus using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101699764B1 (en) | 2015-09-14 | 2017-01-25 | 주식회사 포스코 | Automatic apparatus for controlling extractor of furnace and method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5720766U (en) * | 1980-07-11 | 1982-02-03 | ||
| JPS5775471U (en) * | 1980-10-24 | 1982-05-10 | ||
| JPS6199956U (en) * | 1984-12-05 | 1986-06-26 | ||
| JPH02117654U (en) * | 1988-11-17 | 1990-09-20 | ||
| JPH053005A (en) * | 1991-06-24 | 1993-01-08 | Ise Electronics Corp | Light-emitting element |
| JPH0648156U (en) * | 1992-12-03 | 1994-06-28 | 双葉電子工業株式会社 | Double-sided fluorescent display tube |
-
1998
- 1998-11-02 JP JP31181798A patent/JP3455119B2/en not_active Expired - Fee Related
-
1999
- 1999-11-01 TW TW088118952A patent/TW444222B/en not_active IP Right Cessation
- 1999-11-01 KR KR1019990047885A patent/KR100338186B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006040866A (en) * | 2004-07-22 | 2006-02-09 | Kofukin Seimitsu Kogyo (Shenzhen) Yugenkoshi | Field emission surface light source device and its negative electrode |
| US7638935B2 (en) | 2004-07-22 | 2009-12-29 | Tsinghua University | Field emission cathode and light source apparatus using same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW444222B (en) | 2001-07-01 |
| JP3455119B2 (en) | 2003-10-14 |
| KR20000035127A (en) | 2000-06-26 |
| KR100338186B1 (en) | 2002-05-24 |
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