JPH0422045A - Gas discharge tube device for display - Google Patents
Gas discharge tube device for displayInfo
- Publication number
- JPH0422045A JPH0422045A JP2127350A JP12735090A JPH0422045A JP H0422045 A JPH0422045 A JP H0422045A JP 2127350 A JP2127350 A JP 2127350A JP 12735090 A JP12735090 A JP 12735090A JP H0422045 A JPH0422045 A JP H0422045A
- Authority
- JP
- Japan
- Prior art keywords
- gas discharge
- glass plate
- discharge tube
- shield
- conductive layer
- 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
- 239000011521 glass Substances 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- 230000000116 mitigating effect Effects 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 238000007650 screen-printing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- 239000010410 layer Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 102100039169 [Pyruvate dehydrogenase [acetyl-transferring]]-phosphatase 1, mitochondrial Human genes 0.000 description 1
- 101710126534 [Pyruvate dehydrogenase [acetyl-transferring]]-phosphatase 1, mitochondrial Proteins 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、プラズマ・デイスプレィ・パネル（ＦＤＰ）
と通称される表示用ガス放電管に駆動用半導体集積回路
素子を実装してなる表示用ガス放電管装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applied to plasma display panels (FDP).
The present invention relates to a display gas discharge tube device, which is commonly referred to as a display gas discharge tube device, in which a driving semiconductor integrated circuit element is mounted on a display gas discharge tube.
従来の技術
前述のよな表示用ガス放電管は、外囲器の前面ガラス板
の内面に多数のストライプ状電極（Ｙ電極）を付設し、
前記外囲器の背面ガラス板の内面に前記電極に立体交差
した多数のストライプ状電極（Ｘ電極）を付設してなる
。BACKGROUND OF THE INVENTION The above-mentioned display gas discharge tube has a large number of striped electrodes (Y electrodes) attached to the inner surface of the front glass plate of the envelope.
A large number of striped electrodes (X electrodes) intersecting the electrodes are attached to the inner surface of the rear glass plate of the envelope.
第２図に示すように、かかるガス放電管（ＦＤＰ）１の
多数のＹ電極に制御回路２が、そして、多数のＸ電極に
走査回路３がそれぞれ接続され、制御回路２および走査
回路３にインターフェース回路４が接続される。このよ
うに、ＰＤＰ １の電極端子およびこれに接続される配
線は多数となるので、その駆動に必要な半導体集積回路
素子はＰＤＰＩの背面ガラス板の近傍に設けるのがよい
。As shown in FIG. 2, a control circuit 2 is connected to a large number of Y electrodes of the gas discharge tube (FDP) 1, and a scanning circuit 3 is connected to a large number of X electrodes. Interface circuit 4 is connected. As described above, since the PDP 1 has a large number of electrode terminals and wirings connected thereto, the semiconductor integrated circuit elements necessary for driving the electrode terminals are preferably provided near the back glass plate of the PDPI.
そこで、第３図ないし第５図に示すように、Ｙ電極制御
回路２を実装した可とう性印刷回路基板たるＹ電極外部
導線群２ａおよびＸ電極走査回路３を実装した可とう性
印刷回路基板たるＸ電極外部導線群３ａを、金属枠体５
を支持子としてＰＤＰＩの四辺から背面側へ敷設し、イ
ンターフェース回路４を実装した印刷回路基板を背面ガ
ラス板板１ｂの外面中央部に金属枠体５を支持子として
配設することが行われている。なお、図中の１ａは前面
ガラス板、６は接着剤層を示す。Therefore, as shown in FIGS. 3 to 5, a flexible printed circuit board on which the Y electrode control circuit 2 is mounted and a flexible printed circuit board on which the Y electrode external conductor group 2a and the X electrode scanning circuit 3 are mounted. The barrel X electrode external conductor group 3a is attached to the metal frame 5.
are placed as supports from the four sides of the PDPI to the back side, and the printed circuit board on which the interface circuit 4 is mounted is placed in the center of the outer surface of the rear glass plate 1b with the metal frame 5 as a support. There is. In addition, 1a in the figure shows a front glass plate, and 6 shows an adhesive layer.
発明が解決しようとする課題
一方、表示用ガス放電管の表示容量の大型化に伴い、駆
動制御の高速化が必要となってきた。とくに大容量の表
示用ガス放電管の動作特発熱量は少なくなく、放電管表
示領域の中央部と周辺部とてかなりの温度差を生じる。Problems to be Solved by the Invention On the other hand, as the display capacity of display gas discharge tubes increases, it has become necessary to increase the speed of drive control. In particular, the characteristic heat generated during operation of a large-capacity display gas discharge tube is not small, and a considerable temperature difference occurs between the center and peripheral portions of the display area of the discharge tube.
そして、この温度差が放電特性に悪影響し、輝度むらや
、ちらつきを生じる結果となる。とくに、直流点灯形式
のガス放電管にあっては、ネオンおよびアルゴン等から
なる放電用混合ガス中に微量の水銀蒸気を混入させてい
るので、前記温度差によって管内水銀蒸気の分布が不均
一になり、これが管内電極の表面状態や抵抗値に経時変
化を与える結果、表示面での放電特性が場所によって不
均一になるという課題があった。さらに、高速駆動のた
めにクロックツくルスの周波数を高（設定することから
電磁波の不要輻射を生じ、ノイズ障害をひき起こすとい
う課題もあった。This temperature difference adversely affects the discharge characteristics, resulting in uneven brightness and flickering. In particular, in DC lighting type gas discharge tubes, a small amount of mercury vapor is mixed into the discharge mixture consisting of neon, argon, etc., so the temperature difference can cause uneven distribution of mercury vapor inside the tube. This causes the surface condition and resistance value of the tube electrode to change over time, resulting in a problem in that the discharge characteristics on the display surface become non-uniform depending on the location. Furthermore, because the frequency of the clock pulse is set to high for high-speed driving, unnecessary electromagnetic radiation is generated, causing noise disturbances.
課題を解決するための手段
本発明は前述のような課題を解決すべ（なされたもので
、外囲器の前面ガラス板の内面に多数のストライプ状電
極を付設し、前記外囲器の背面ガラス板の内面に前記電
極に立体交差した多数のストライプ状電極を付設してな
る表示用ガス放電管および前記背面ガラス板の外面側に
シールドを隔てて配設された駆動用半導体集積回路素子
を備えてなるガス放電管装置において、前記シールドを
導電性および良熱伝導性を有する膜として前記背面ガラ
ス板の外面のほぼ全域に添設せしめる。Means for Solving the Problems The present invention has been made to solve the above-mentioned problems by attaching a large number of striped electrodes to the inner surface of the front glass plate of the envelope, and A display gas discharge tube is provided with a large number of striped electrodes intersecting the electrodes on the inner surface of the plate, and a driving semiconductor integrated circuit element is provided on the outer surface of the rear glass plate with a shield in between. In the gas discharge tube device, the shield is attached as a film having electrical conductivity and good thermal conductivity to almost the entire outer surface of the rear glass plate.
作用
このような構成であると、前記シールドが前記電磁波の
装置性漏出を防ぐ役割を果たすとともに、前記温度差の
発生を緩和させる役割を果たすので、ノイズ障害のみな
らず、輝度むらやちらつきの発生を防ぐことができる。Effect With this configuration, the shield plays the role of preventing the leakage of the electromagnetic waves from the device and also plays the role of mitigating the generation of the temperature difference, so that not only noise disturbances but also brightness unevenness and flickering occur. can be prevented.
また、直流点灯形式のガス放電管にあっては、前述のよ
うな経時変化による放電特性の不均一化を解消させるこ
とができる。Furthermore, in the case of a DC lighting type gas discharge tube, it is possible to eliminate the non-uniformity of the discharge characteristics due to the change over time as described above.
実施例
つぎに本発明を、第１図に示した実施例とともに説明す
る。Embodiment Next, the present invention will be explained with reference to the embodiment shown in FIG.
前面ガラス板１ａがその内面上に多数のストライプ状Ｘ
電極を、そして、背面ガラス板１ｂがその内面上に前記
Ｙ電極に立体交差した多数のストライプ状Ｘ電極をそれ
ぞれ有し、これらが対角長１２インチないし１フインチ
の方形状表示領域をもつ直流点灯形式の表示用ガス放電
管を構成しているのは従来どおりである。The front glass plate 1a has many stripes X on its inner surface.
The back glass plate 1b has on its inner surface a number of striped X electrodes that intersect with the Y electrodes, and these have a rectangular display area with a diagonal length of 12 inches to 1 inch. The structure of the lighting type display gas discharge tube is the same as before.
また、このガス放電管の四辺から延び出たＹ電極外部導
線群２ａおよびＸ電極外部導線群３ａが、第４図および
第５図に示すように背面ガラス板１ｂの外面側へ折り返
されて金属製枠体により支持され、かつ、Ｙ電極制御回
路およびＸ電極走査回路を構成する駆動用半導体集積回
路素子を実装してなる点や、インターフェース回路を実
装した印刷回路基板が背面ガラス板１ｂの外面中央部に
金属枠体を支持子として配設される点も従来どおりであ
る。Further, the Y electrode external conducting wire group 2a and the X electrode external conducting wire group 3a extending from the four sides of the gas discharge tube are folded back toward the outer surface of the rear glass plate 1b as shown in FIGS. The printed circuit board supported by a frame body and equipped with drive semiconductor integrated circuit elements constituting the Y electrode control circuit and the X electrode scanning circuit, and the printed circuit board on which the interface circuit is mounted, is mounted on the outer surface of the rear glass plate 1b. It is also the same as before that a metal frame is disposed in the center as a support.
ただ、背面ガラス板１ｂの外面のほぼ全域に、高導熱層
７およびこれに積層された高導電層８がシールドとして
添設されてなる点で、従来の構成と異なる。高導熱層７
および高導電層８はいずれも金属酸化物の混晶材、銅ま
たはニッケル等の微粉末を含むいわゆる導電性ペースト
をインクとしてスクリーン印刷で形成することができる
。使用する素材が銅やアルミニウム等の良熱伝導性導電
体の場合、両層７．８は２層に別けずに一層で形成でき
る。また、両層７，８の少なくとも一方をメタルシート
の張り付けにより形成してもよい。However, it differs from the conventional structure in that a highly thermally conductive layer 7 and a highly conductive layer 8 laminated thereon are attached as a shield over almost the entire outer surface of the rear glass plate 1b. High heat conductive layer 7
Both of the high conductivity layer 8 can be formed by screen printing using a so-called conductive paste containing a mixed crystal material of metal oxide, fine powder of copper, nickel, etc. as ink. When the material used is a conductive material with good thermal conductivity such as copper or aluminum, both layers 7 and 8 can be formed in one layer instead of being divided into two layers. Further, at least one of both layers 7 and 8 may be formed by pasting a metal sheet.
いずれにしてもかかるシールドを設けることにより、Ｆ
ＤＰの中央部と周辺部との間での動作時温度差を約１０
℃以下に抑えることができる。また、このシールドは前
記金属製枠体に電気的に接続され、接地電位に保たれる
ので、駆動回路から発生した電磁波がＦＤＰを通じて装
置外へ漏出する危険を防ぐことができる。In any case, by providing such a shield, F
The operating temperature difference between the center and periphery of the DP is approximately 10
Can be kept below ℃. Further, since this shield is electrically connected to the metal frame and kept at ground potential, it is possible to prevent electromagnetic waves generated from the drive circuit from leaking out of the device through the FDP.
発明の効果
以上のように本発明によると、駆動回路からガス放電管
を通じて装置外へ輻射されるマイクロ波をほぼ完全に遮
断できるので、ノイズ障害の発生を防止し得るのみなら
ず、動作時数電管の表示領域における温度分布を均一化
せしめ得ることから、温度差にもとづく輝度むらや、ち
らつきの発生を防ぐことができる。Effects of the Invention As described above, according to the present invention, microwaves radiated from the drive circuit to the outside of the device through the gas discharge tube can be almost completely blocked, which not only prevents the occurrence of noise disturbances but also reduces the operating time. Since the temperature distribution in the display area of the electric tube can be made uniform, uneven brightness and flickering due to temperature differences can be prevented.
第１図は本発明を実施した表示用ガス放電管装置の要部
の斜視図、第２図は表示用ガス放電管の周辺回路図、第
３図は従来の表示用ガス放電管装置の平面図、第４図は
同ガス放電管装置の背面図、第５図は第４図のＡ−Ａ断
面図である。
１ａ・・・・・・前面ガラス板、１ｂ・・・・・・背面
ガラス板、２ａ・・・・・・Ｙ電極外部導線群、３ａ・
・・・・・Ｘ電極外部導線群、７・・・・・・高導熱層
、８・・・・・・高導電層。
代理人の氏名 弁理士 粟野重孝 ほか１名第
図
１人 前面ガ゛ラス木ａ
Ｉｂ ｖｒ面ガ°ラス七呆Fig. 1 is a perspective view of the main parts of a gas discharge tube device for display according to the present invention, Fig. 2 is a peripheral circuit diagram of the gas discharge tube for display, and Fig. 3 is a plan view of a conventional gas discharge tube device for display. 4 is a rear view of the same gas discharge tube device, and FIG. 5 is a sectional view taken along line AA in FIG. 4. 1a...Front glass plate, 1b...Back glass plate, 2a...Y electrode external conductor group, 3a...
. . . X electrode external conductor wire group, 7 . . . High thermal conductivity layer, 8 . . . High conductivity layer. Name of agent Patent attorney Shigetaka Awano and 1 other person Figure 1 Front glass wood A Ib VR front glass 7-piece
Claims (1)
を付設し、前記外囲器の背面ガラス板の内面に前記電極
に立体交差した多数のストライプ状電極を付設してなる
表示用ガス放電管および前記背面ガラス板の外面側にシ
ールドを隔てて配設された駆動用半導体集積回路素子を
備え、前記シールドは導電性および良熱伝導性を有する
膜として前記背面ガラス板の外面のほぼ全域に添設され
ていることを特徴とする表示用ガス放電管装置。A display gas discharge comprising a large number of striped electrodes attached to the inner surface of the front glass plate of the envelope, and a large number of striped electrodes intersecting the electrodes three-dimensionally intersected with the electrodes on the inner surface of the rear glass plate of the envelope. A drive semiconductor integrated circuit element is provided on the outer surface side of the tube and the rear glass plate with a shield in between, and the shield is a film having electrical conductivity and good thermal conductivity that covers almost the entire outer surface of the rear glass plate. A gas discharge tube device for display, characterized in that it is attached to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2127350A JPH0422045A (en) | 1990-05-16 | 1990-05-16 | Gas discharge tube device for display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2127350A JPH0422045A (en) | 1990-05-16 | 1990-05-16 | Gas discharge tube device for display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0422045A true JPH0422045A (en) | 1992-01-27 |
Family
ID=14957758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2127350A Pending JPH0422045A (en) | 1990-05-16 | 1990-05-16 | Gas discharge tube device for display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422045A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0821385A2 (en) * | 1996-07-23 | 1998-01-28 | Matsushita Electronics Corporation | Plasma display device and its manufacturing method |
| EP0834898A2 (en) * | 1996-10-01 | 1998-04-08 | Nisshinbo Industries, Inc. | Electromagnetic radiation shield panel and method of producing the same |
| EP1028611A3 (en) * | 1997-06-24 | 2002-06-19 | Bridgestone Corporation | Electromagnetic wave shielding and light transmitting plate |
| WO2007135743A1 (en) * | 2006-05-24 | 2007-11-29 | Hitachi Plasma Display Limited | Flat panel display device |
-
1990
- 1990-05-16 JP JP2127350A patent/JPH0422045A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0821385A2 (en) * | 1996-07-23 | 1998-01-28 | Matsushita Electronics Corporation | Plasma display device and its manufacturing method |
| EP0821385A3 (en) * | 1996-07-23 | 1998-10-28 | Matsushita Electronics Corporation | Plasma display device and its manufacturing method |
| US5971566A (en) * | 1996-07-23 | 1999-10-26 | Matsushita Electric Industrial Co., Ltd. | Plasma display device and its manufacturing method |
| EP0834898A2 (en) * | 1996-10-01 | 1998-04-08 | Nisshinbo Industries, Inc. | Electromagnetic radiation shield panel and method of producing the same |
| EP0834898A3 (en) * | 1996-10-01 | 1998-11-25 | Nisshinbo Industries, Inc. | Electromagnetic radiation shield panel and method of producing the same |
| EP1028611A3 (en) * | 1997-06-24 | 2002-06-19 | Bridgestone Corporation | Electromagnetic wave shielding and light transmitting plate |
| EP1453371A3 (en) * | 1997-06-24 | 2005-01-26 | Bridgestone Corporation | Electromagnetic wave shielding and light transmitting plate |
| WO2007135743A1 (en) * | 2006-05-24 | 2007-11-29 | Hitachi Plasma Display Limited | Flat panel display device |
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