JP3032341U - Cold cathode discharge lamp - Google Patents
Cold cathode discharge lampInfo
- Publication number
- JP3032341U JP3032341U JP1996006869U JP686996U JP3032341U JP 3032341 U JP3032341 U JP 3032341U JP 1996006869 U JP1996006869 U JP 1996006869U JP 686996 U JP686996 U JP 686996U JP 3032341 U JP3032341 U JP 3032341U
- Authority
- JP
- Japan
- Prior art keywords
- glass bulb
- wall surface
- discharge lamp
- heat
- cold cathode
- 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.)
- Expired - Lifetime
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
(57)【要約】
[課題] ガラスバルブ1の外周に環状に加熱性収縮性
部材5を取り付けることによりバックライトケース内の
所定位置に正確に配設でき、配設後は常に動くことのな
いようにすることを目的とする。
[解決手段] 内壁面に蛍光体被膜を形成し、両端には
内部電極2、2を封着したガラスバルブ1の外側には加
熱収縮性部材5を環状に密着し、該加熱収縮性部材5が
バックライトケース内壁面とガラスバルブ1との間に介
在することにより該ガラスバルブ1がバックライトケー
ス内壁面に接触することがないようにしたことを特徴と
する。
(57) [Abstract] [Problem] By attaching the heat-shrinkable member 5 in an annular shape to the outer circumference of the glass bulb 1, it can be accurately arranged at a predetermined position in the backlight case, and does not always move after the arrangement. The purpose is to do so. [Solution] A heat-shrinkable member 5 is annularly adhered to the outside of a glass bulb 1 in which a phosphor coating is formed on the inner wall surface, and internal electrodes 2 and 2 are sealed at both ends. Is interposed between the inner wall surface of the backlight case and the glass bulb 1 to prevent the glass bulb 1 from contacting the inner wall surface of the backlight case.
Description
【0001】[0001]
本考案は、液晶テレビ、OA機器等の液晶表示装置の背面光源として使用する 冷陰放電灯に関するもので、更に詳しくは、バックライトケース内の所定位置に 正確に装着でき、装着後は振動等の物理的刺激によってもバックライトケース内 を動くことなく安定的な配設状態を保持し得る冷陰極放電灯に関するものである 。 The present invention relates to a cold shade discharge lamp used as a back light source for liquid crystal display devices such as liquid crystal televisions and office automation equipment. More specifically, it can be accurately mounted at a predetermined position in a backlight case, and after mounting, vibration etc. The present invention relates to a cold cathode discharge lamp that can maintain a stable arrangement state without moving in the backlight case even when physically stimulated.
【0002】[0002]
液晶表示装置の普及及び用途の多様化に伴ない、市場からは液晶表示装置の高 輝度化に加えて一層の小型化、長寿命化が要求されている。液晶表示装置の背面 光源として使用されている冷陰極放電灯は、一般的に管径4mm以下の細径のガ ラスバルブにより形成されている。細径のガラスバルブより成る冷陰極放電灯を 、内面に反射面を設け、上面開口部に光拡散板を取り付けてなる箱形のバックラ イトケース内の所定位置に配設する場合、バックライトケース内側面にガラスバ ルブが直接当接しないように、ガラスバルブの外周にOリングを取り付けて配設 することが一般的に行われている。 With the spread of liquid crystal display devices and the diversification of their uses, the market demands for higher brightness of liquid crystal display devices as well as further miniaturization and longer life. A cold cathode discharge lamp used as a back light source of a liquid crystal display device is generally formed by a glass bulb having a small diameter of 4 mm or less. When a cold cathode discharge lamp consisting of a small-diameter glass bulb is installed at a predetermined position in a box-shaped backlight case with a reflecting surface on the inner surface and a light diffusion plate attached to the top opening, It is common practice to mount an O-ring on the outer circumference of the glass bulb so that the glass bulb does not directly contact the side surface.
【0003】 図3は、このような冷極放電灯の従来例を示すものであり、内壁面に蛍光体被 膜を形成した管径4mm以下のガラスバルブ1の両端に導入線3、3と電気的に 接続された内部電極2、2を封着している。ガラスバルブ1の外側には複数箇所 にシリコンより成るOリング6を嵌挿し、バックライトケース(図示せず)内の 所定位置に配設して、バックライトケース(図示せず)の内壁面とガラスバルブ 1が接触しないようにしている。FIG. 3 shows a conventional example of such a cold discharge lamp, in which lead-in wires 3 and 3 are provided at both ends of a glass bulb 1 having a tube diameter of 4 mm or less having a phosphor coating on the inner wall surface. The internal electrodes 2, 2 electrically connected are sealed. O-rings 6 made of silicon are fitted and inserted at a plurality of locations outside the glass bulb 1 and are arranged at predetermined positions in a backlight case (not shown) so as to form an inner wall surface of the backlight case (not shown). The glass bulb 1 is kept out of contact.
【0004】[0004]
しかしながら、前記従来の技術で述べた冷陰極放電灯は、シリコンを金型によ り環状に成型したOリングを嵌装しているので、ガラスバルブの外径を採寸して 型枠を製作しなければならず、Oリングの製造作業に手間を要するという問題点 があった。 However, in the cold cathode discharge lamp described in the above-mentioned conventional technique, an O-ring formed by molding silicon into an annular shape is fitted, so the outer diameter of the glass bulb is measured to form the mold. Therefore, there is a problem that the O-ring manufacturing process requires time and effort.
【0005】 又、製造したOリングの内径がガラスバルブの外径より大径であること必要と するが、冷陰極放電灯をOリングに嵌挿してバックライトケース内に配設しても 、Oリングが動き、冷陰極放電灯を正確な位置に配設できず、信頼性の低いもの となる場合があるという問題点があった。Further, although it is necessary that the inner diameter of the manufactured O-ring is larger than the outer diameter of the glass bulb, even if the cold cathode discharge lamp is inserted into the O-ring and disposed in the backlight case, There is a problem that the O-ring moves, the cold cathode discharge lamp cannot be arranged at an accurate position, and the reliability becomes low.
【0006】 そこで、本考案は、前記従来例の有する欠点を除去するために加熱性収縮性部 材を環状に製作してガラスバルブを嵌挿し、加熱して密着することにより、ガラ スバルブの管径の大小に関係なく極めて容易に取り付け作業ができ、しかもバッ クライトケース内に配設する際に所定位置に正確に配設でき、配設後は動くこと がなく安定的に配設状態を保持し得る冷陰極放電灯を提供することを目的とする 。In order to eliminate the drawbacks of the conventional example, the present invention is to manufacture a heat-shrinkable member in an annular shape, insert a glass bulb into it, and heat it to bring it into close contact. It can be installed very easily regardless of the size of the diameter, and it can be accurately placed at a predetermined position when it is placed in the backlight case, and it does not move after placement and maintains a stable placement state. An object of the present invention is to provide a cold cathode discharge lamp that can be used.
【0007】[0007]
上記目的を達成するために請求項1記載の考案は、内壁面に蛍光体被膜を形成 し、1対の内部電極を両端に封着したガラスバルブの外側に、加熱収縮性部材を 密着し、この加熱収縮性部材がバックライトケース内壁面とガラスバルブ間に介 在してガラスバルブがバックライトケース内壁面に接触しないようにしたことを 特徴とする。 In order to achieve the above-mentioned object, the invention according to claim 1 forms a phosphor coating on the inner wall surface, and adheres a heat-shrinkable member to the outside of a glass bulb having a pair of internal electrodes sealed at both ends, The heat shrinkable member is interposed between the inner wall surface of the backlight case and the glass bulb so that the glass bulb does not contact the inner wall surface of the backlight case.
【0008】[0008]
以下、図を参照にして本考案の実施の形態について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
【0009】 図1及び図2において、管径3mm、肉厚0.4mmのガラスバルブ1の内壁 には蛍光体被膜を形成し、両端部には1対の内部電極2、2を対設している。内 部電極2、2には導入線3、3を電気的に接続し、ガラスバルブ1の両端封着部 4、4より外部へ気密に導出されている。環状の加熱収縮性部材5、5はガラス バルブ1の外側に嵌装している。この環状の加熱収縮性部材5、5はナイロン若 しくはテフロン等の合成樹脂より成り、加熱収縮後は透明になる性質のものを用 いることが好ましい。環状の加熱収縮性部材5、5にガラスバルブ1を嵌挿し、 例えばヘアードライヤー等により熱風を吹き付けて、加熱収縮せしめて加熱収縮 性部材5、5をガラスバルブ1の外側に環状に密着させている。In FIGS. 1 and 2, a phosphor coating is formed on the inner wall of a glass bulb 1 having a tube diameter of 3 mm and a wall thickness of 0.4 mm, and a pair of internal electrodes 2 and 2 are provided opposite to each other at both ends. ing. Introducing wires 3 and 3 are electrically connected to the inner electrodes 2 and 2 and are led out to the outside from the sealed portions 4 and 4 at both ends of the glass bulb 1. The ring-shaped heat-shrinkable members 5 and 5 are fitted on the outside of the glass bulb 1. It is preferable that the annular heat-shrinkable members 5 and 5 are made of nylon or a synthetic resin such as Teflon and have a property of becoming transparent after heat-shrinkage. Insert the glass bulb 1 into the annular heat-shrinkable members 5, 5 and blow the hot air with, for example, a hair dryer to heat-shrink the heat-shrinkable members 5, 5 so that the heat-shrinkable members 5, 5 are closely attached to the outside of the glass bulb 1 in an annular shape. There is.
【0010】[0010]
本考案は、環状の加熱収縮性部材をガラスバルブの外側に嵌装し、環状の加熱 収縮性部材を加熱によりガラスバルブに取り付けているので、環の内径に多少の 大小があっても容易に取り付けることができ、作業性の向上を図り得るという効 果がある。 In the present invention, the ring-shaped heat-shrinkable member is fitted on the outside of the glass bulb, and the ring-shaped heat-shrinkable member is attached to the glass bulb by heating. Therefore, even if the inner diameter of the ring is large or small, it can be easily performed. It has the effect that it can be attached and workability can be improved.
【0011】 又、環を加熱により、ガラスバルブ外側に密着させているので、環状の加熱収 縮性部材内を放電灯が遊ぶことがなく、安定的にバックライトケース内に配設さ れるという効果がある。Also, since the ring is brought into close contact with the outside of the glass bulb by heating, the discharge lamp does not play inside the ring-shaped heat-shrinkable member and is stably arranged in the backlight case. effective.
【0012】 更に、加熱収縮により環の外周面に凹凸が形成され、バックライトケース内壁 面との摩擦抵抗力が増大し、振動等によっても冷陰極放電灯が動くことがなく、 信頼性の高い液晶表示装置を提供し得るという効果がある。Further, heat shrinkage causes irregularities to be formed on the outer peripheral surface of the ring, increasing the frictional resistance with the inner wall surface of the backlight case, and the cold cathode discharge lamp does not move due to vibration or the like, which is highly reliable. There is an effect that a liquid crystal display device can be provided.
【図面の簡単な説明】[Brief description of drawings]
【図1】本考案の実施の形態における冷陰極放電灯の正
面図である。FIG. 1 is a front view of a cold cathode discharge lamp according to an embodiment of the present invention.
【図2】図1のA−A線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図3】従来例を示す説明図である。FIG. 3 is an explanatory diagram showing a conventional example.
1 ガラスバルブ 2 内部電極 5 加熱収縮性部材 1 glass bulb 2 internal electrode 5 heat shrinkable member
Claims (1)
内部電極2、2を封着したガラスバルブ1の外側には加
熱収縮性部材5を環状に密着し、該加熱収縮性部材5が
バックライトケース内壁面とガラスバルブ1との間に介
在することにより該ガラスバルブ1がバックライトケー
ス内壁面に接触することがないようにしたことを特徴と
する冷陰極放電灯。1. A heat-shrinkable member 5 is annularly adhered to the outer side of a glass bulb 1 having a phosphor coating formed on the inner wall surface and inner electrodes 2 and 2 sealed at both ends. A cold cathode discharge lamp characterized in that the glass bulb 1 is prevented from coming into contact with the inner wall surface of the backlight case by interposing 5 between the inner wall surface of the backlight case and the glass bulb 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1996006869U JP3032341U (en) | 1996-06-11 | 1996-06-11 | Cold cathode discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1996006869U JP3032341U (en) | 1996-06-11 | 1996-06-11 | Cold cathode discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3032341U true JP3032341U (en) | 1996-12-17 |
Family
ID=43167261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1996006869U Expired - Lifetime JP3032341U (en) | 1996-06-11 | 1996-06-11 | Cold cathode discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3032341U (en) |
-
1996
- 1996-06-11 JP JP1996006869U patent/JP3032341U/en not_active Expired - Lifetime
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