JP2001043816A - Glass panel for direct viewing cathode ray tube - Google Patents
Glass panel for direct viewing cathode ray tubeInfo
- Publication number
- JP2001043816A JP2001043816A JP11215644A JP21564499A JP2001043816A JP 2001043816 A JP2001043816 A JP 2001043816A JP 11215644 A JP11215644 A JP 11215644A JP 21564499 A JP21564499 A JP 21564499A JP 2001043816 A JP2001043816 A JP 2001043816A
- Authority
- JP
- Japan
- Prior art keywords
- glass panel
- ray tube
- cathode ray
- image
- face part
- 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
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、テレビジョン或い
は表示管等に用いられる直視型陰極線管用ガラスバルブ
を構成するガラスパネルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass panel constituting a glass bulb for a direct view type cathode ray tube used for a television or a display tube.
【０００２】[0002]
【従来の技術】通常、直視型陰極線管用ガラスバルブは
画像の表示される前面のガラスパネルと、その後方にあ
ってガラスパネルと封合され外部に偏向ヨークが装着さ
れるファンネル、並びにファンネルに溶着されて内部に
電子銃が格納されるネックとで構成される。2. Description of the Related Art Generally, a glass bulb for a direct-view type cathode ray tube is welded to a front glass panel on which an image is displayed, a funnel behind the front glass panel sealed with the glass panel, and having a deflection yoke mounted outside, and a funnel. And a neck in which the electron gun is stored.
【０００３】上記陰極線管は内部が高真空状態にされる
ので、従来、図４乃至図６に示すように、ガラスパネル
１は、フェース部２の外面を凸形状とすることにより、
大気圧に耐えられるようにしたものが用いられてきた。
しかしながら、フェース部の外面が凸形状であると、特
にフェース部の端部において画像が歪んで見えるため、
近年は、物理強化技術等により大気圧に耐えられるよう
にしたフェース部の外面がほぼ平坦なガラスパネルが製
造されるようになった。Since the inside of the above-mentioned cathode ray tube is in a high vacuum state, conventionally, as shown in FIG. 4 to FIG.
Those that can withstand atmospheric pressure have been used.
However, if the outer surface of the face is convex, the image looks distorted, especially at the end of the face,
In recent years, a glass panel having a substantially flat outer surface of a face portion capable of withstanding atmospheric pressure by a physical strengthening technique or the like has been manufactured.
【０００４】一方、前記直視型陰極線管において、より
迫力のある画像を再現するために画像の表示されるフェ
ース部の大型化が求められ、最近ではフェース部の対角
方向の有効径が１００ｃｍ（４０インチ）を超える直視
型陰極線管用ガラスパネルも製造されている。On the other hand, in the direct-view type cathode ray tube, in order to reproduce a more powerful image, it is required to increase the size of the face portion on which the image is displayed. Recently, the effective diameter of the face portion in the diagonal direction is 100 cm ( Glass panels for direct view type cathode ray tubes exceeding 40 inches are also manufactured.
【０００５】さらに、家庭で映画等の映像ソフトを楽し
めるようなホームシアターが普及しつつあり、臨場感を
得るために略矩形のフェース部の横軸方向における辺
（長辺）の長さと縦軸方向における辺（短辺）の長さの
比率であるアスペクト比を従来の４対３から映画スクリ
ーン（シネマスコープ）の通常の比率である２２対９に
近づけた１６対９の横長型のガラスパネルも用いられて
いる。Further, home theaters that allow users to enjoy video software such as movies at home are becoming widespread. To obtain a sense of reality, the length (long side) of the substantially rectangular face portion in the horizontal axis direction and the vertical axis direction are increased. The aspect ratio, which is the ratio of the lengths of the sides (short sides) in the above, has been changed from the conventional 4: 3 to the normal ratio of the movie screen (cinema scope) of 22: 9, and the 16: 9 horizontally long glass panel has also been used. Used.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、単に画
面を大型化したり、アスペクト比を横長化しただけで
は、映画のような映像ソフトの臨場感をテレビジョン或
いは表示管等に再現することは困難であった。However, it is difficult to reproduce the realism of video software such as a movie on a television or a display tube by simply increasing the screen size or increasing the aspect ratio. there were.
【０００７】そこで、本発明の目的は、テレビジョン或
いは表示管等に表示される画像をより臨場感溢れるもの
として再現することである。It is therefore an object of the present invention to reproduce an image displayed on a television or a display tube as a more realistic image.
【０００８】[0008]
【課題を解決するための手段】本発明は前述の課題を解
決すべくなされたものであり、画像が表示される略矩形
のフェース部を有する直視型陰極線管用ガラスパネルに
おいて、前記ガラスパネルのフェース部の外面を凹形状
としたことを特徴とする直視型陰極線管用ガラスパネル
を提供する。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is directed to a glass panel for a direct-view type cathode-ray tube having a substantially rectangular face portion on which an image is displayed. Provided is a glass panel for a direct-view type cathode-ray tube, wherein the outer surface of the portion is concave.
【０００９】また、本発明は前記凹形状のフェース部の
中央を通る横軸方向の曲率半径をＲＨ（ｍｍ）とすると
き、１０００≦ＲＨ≦１００００であり、かつフェース
部の中央を通る縦軸方向の曲率半径をＲＶ（ｍｍ）とす
るとき、１０００≦ＲＶであることを特徴とする。In the present invention, when the radius of curvature in the horizontal axis direction passing through the center of the concave face portion is RH (mm), 1000 ≦ RH ≦ 10000 and the vertical axis passes through the center of the face portion. When the radius of curvature in the direction is RV (mm), it is characterized in that 1000 ≦ RV.
【００１０】フェース部の中央を通る横軸方向の曲率半
径であるＲＨ（ｍｍ）は凹形状を維持するために１００
００以下とするのが好ましく、さらに歪みの少ない画像
を表示するために、１０００以上とするのが好ましい。
また、フェース部の中央を通る縦軸方向の曲率半径であ
るＲＶ（ｍｍ）は無限大、即ちほぼ完全な直線でもよい
が、歪みの少ない画像を表示するために、１０００以上
とするのが好ましい。RH (mm), which is the radius of curvature in the horizontal axis direction passing through the center of the face portion, is 100 to maintain the concave shape.
It is preferably at most 00, and more preferably at least 1,000 in order to display an image with less distortion.
RV (mm), which is the radius of curvature in the direction of the vertical axis passing through the center of the face portion, may be infinite, that is, a substantially perfect straight line, but is preferably 1000 or more in order to display an image with little distortion. .
【００１１】[0011]
【作用】本発明は、直視型陰極線管用ガラスパネルの画
像が表示されるフェース部の外面を凹形状としたので、
より臨場感のある画像が再現できる。According to the present invention, the outer surface of the face portion on which the image of the glass panel for a direct-view type cathode-ray tube is displayed has a concave shape.
A more realistic image can be reproduced.
【００１２】[0012]
【実施例】以下、図１、図２及び図３に基づいて本発明
にかかる直視型陰極線管用ガラスパネルの実施例につい
て説明する。図１は本発明の直視型陰極線管用ガラスパ
ネルを示す正面図であり、図２は図１のＨ−Ｈ１線断面
図、図３は図１のＶ−Ｖ１線断面図である。各図におい
て、１は直視型陰極線管用ガラスパネル、２は略矩形の
画像が表示されるフェース部、３はフェース部の中央、
ＲＨはフェース部の中央を通る横軸方向の曲率半径、Ｒ
Ｖはフェース部の中央を通る縦軸方向の曲率半径であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a glass panel for a direct-view type cathode ray tube according to the present invention will be described below with reference to FIGS. 1, 2 and 3. FIG. 1 is a front view showing a glass panel for a direct-view type cathode ray tube of the present invention, FIG. 2 is a sectional view taken along line HH1 of FIG. 1, and FIG. 3 is a sectional view taken along line VV1 of FIG. In each figure, 1 is a glass panel for a direct-view cathode ray tube, 2 is a face portion on which a substantially rectangular image is displayed, 3 is the center of the face portion,
RH is the radius of curvature in the horizontal axis direction passing through the center of the face portion, R
V is the radius of curvature in the direction of the vertical axis passing through the center of the face portion.
【００１３】本発明においてフェース部２の外面は凹形
状をしており、例えば７６ｃｍ（３２インチ）直視型陰
極線管用ガラスパネルの場合、図２に示すフェース部２
の中央３を通る横軸方向の曲率半径ＲＨは１３００ｍｍ
であり、図３に示すフェース部２の中央３を通る縦軸方
向の曲率半径ＲＶは１０００００ｍｍである。In the present invention, the outer surface of the face portion 2 has a concave shape. For example, in the case of a glass panel for a 76 cm (32 inch) direct view type cathode ray tube, the face portion 2 shown in FIG.
The radius of curvature RH in the horizontal axis direction passing through the center 3 is 1300 mm
The radius of curvature RV in the vertical axis direction passing through the center 3 of the face portion 2 shown in FIG. 3 is 100,000 mm.
【００１４】本発明の前記７６ｃｍガラスパネルのフェ
ース部に対応する大きさにし、かつその凹形状に合わせ
て湾曲させた画像と、従来のフェース部の外面がほぼ平
坦な形状に合わせた画像とを比較した結果、より臨場感
がある画像となることが確認された。[0014] An image which is sized to correspond to the face portion of the 76 cm glass panel of the present invention and which is curved in accordance with the concave shape thereof, and an image in which the conventional outer surface of the face portion is adjusted to a substantially flat shape. As a result of the comparison, it was confirmed that the image had a more realistic feeling.
【００１５】本発明において、ガラスパネルの外面を凹
形状としたが、内面形状については適宜選択される。即
ち、従来例と同様に外面側に凸形状であっても、またほ
ぼ平坦な面であってもよく、さらに外面側に凹形状とし
てもよい。In the present invention, the outer surface of the glass panel is made concave, but the inner surface shape is appropriately selected. That is, similarly to the conventional example, it may have a convex shape on the outer surface side, a substantially flat surface, or a concave shape on the outer surface side.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の直視型陰
極線管用ガラスパネルによれば、画像の表示されるフェ
ース部の外面を凹形状としたので臨場感溢れる画像が再
現できるという優れた効果を有する。As described above, according to the glass panel for a direct-view type cathode ray tube of the present invention, since the outer surface of the face portion on which an image is displayed is concave, an excellent effect of reproducing a realistic image can be reproduced. Having.
【図１】本発明の陰極線管用ガラスパネルの正面図であ
る。FIG. 1 is a front view of a glass panel for a cathode ray tube of the present invention.
【図２】本発明の陰極線管用ガラスパネルの図１におけ
るＨ−Ｈ１線断面図である。FIG. 2 is a cross-sectional view of the glass panel for a cathode ray tube of the present invention taken along line HH1 in FIG.
【図３】本発明の陰極線管用ガラスパネルの図１におけ
るＶ−Ｖ１線断面図である。FIG. 3 is a cross-sectional view taken along line VV1 in FIG. 1 of the glass panel for a cathode ray tube of the present invention.
【図４】従来例の陰極線管用ガラスパネルの正面図であ
る。FIG. 4 is a front view of a conventional glass panel for a cathode ray tube.
【図５】従来例の陰極線管用ガラスパネルの図４におけ
るＨ−Ｈ１線断面図である。FIG. 5 is a cross-sectional view of the conventional glass panel for a cathode ray tube taken along line HH1 in FIG. 4;
【図６】従来例の陰極線管用ガラスパネルの図４におけ
るＶ−Ｖ１線断面図である。FIG. 6 is a cross-sectional view taken along line VV1 in FIG. 4 of a conventional glass panel for a cathode ray tube.
１ 直視型陰極線管用ガラスパネル ２ フェース部 ３ フェース部の中央 DESCRIPTION OF SYMBOLS 1 Glass panel for direct-view type cathode ray tubes 2 Face part 3 Center of face part
Claims (2)
有する直視型陰極線管用ガラスパネルにおいて、前記ガ
ラスパネルのフェース部の外面を凹形状としたことを特
徴とする直視型陰極線管用ガラスパネル。1. A glass panel for a direct-viewing cathode-ray tube having a substantially rectangular face portion on which an image is displayed, wherein the outer surface of the face portion of the glass panel is concave.
軸方向の曲率半径をＲＨ（ｍｍ）とするとき、１０００
≦ＲＨ≦１００００であり、かつフェース部の中央を通
る縦軸方向の曲率半径をＲＶ（ｍｍ）とするとき、１０
００≦ＲＶであることを特徴とする請求項１記載の直視
型陰極線管用ガラスパネル。2. When the radius of curvature in the horizontal axis direction passing through the center of the concave face portion is RH (mm), it is 1000
≦ RH ≦ 10000 and the radius of curvature in the direction of the vertical axis passing through the center of the face portion as RV (mm), 10
2. The glass panel for a direct-view cathode ray tube according to claim 1, wherein 00 ≦ RV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11215644A JP2001043816A (en) | 1999-07-29 | 1999-07-29 | Glass panel for direct viewing cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11215644A JP2001043816A (en) | 1999-07-29 | 1999-07-29 | Glass panel for direct viewing cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001043816A true JP2001043816A (en) | 2001-02-16 |
Family
ID=16675828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11215644A Pending JP2001043816A (en) | 1999-07-29 | 1999-07-29 | Glass panel for direct viewing cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001043816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240199A1 (en) * | 2002-08-28 | 2004-03-11 | Baumann, Hans, Dr. | Display screen surface is provided by transparent material with concave shape that provides reflection free effect |
-
1999
- 1999-07-29 JP JP11215644A patent/JP2001043816A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240199A1 (en) * | 2002-08-28 | 2004-03-11 | Baumann, Hans, Dr. | Display screen surface is provided by transparent material with concave shape that provides reflection free effect |
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