JP2001060442A - Glass bulb for cathode ray tube - Google Patents
Glass bulb for cathode ray tubeInfo
- Publication number
- JP2001060442A JP2001060442A JP11236120A JP23612099A JP2001060442A JP 2001060442 A JP2001060442 A JP 2001060442A JP 11236120 A JP11236120 A JP 11236120A JP 23612099 A JP23612099 A JP 23612099A JP 2001060442 A JP2001060442 A JP 2001060442A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- funnel
- sealing
- glass panel
- cathode ray
- 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 title claims abstract description 104
- 239000000203 mixture Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 13
- 230000035939 shock Effects 0.000 abstract description 12
- 230000000630 rising effect Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004455 differential thermal analysis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910006501 ZrSiO Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052844 willemite Inorganic materials 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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、陰極線管用ガラス
バルブ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 bulb for a cathode ray tube.
【０００２】[0002]
【従来の技術】陰極線管用ガラスバルブは、有効画面を
形成する略矩形のフェース部からブレンドＲ部を介して
連なるスカート部を有するガラスパネルと、ガラスパネ
ルに封着されるファンネルと、ファンネルに接合され電
子銃が装着されるネックとで構成されており、結晶性フ
リットによりガラスパネルとファンネルが封着されてな
る。2. Description of the Related Art A glass bulb for a cathode ray tube is a glass panel having a skirt portion connected to a substantially rectangular face portion forming an effective screen through a blend R portion, a funnel sealed to the glass panel, and a funnel joined to the funnel. And a neck on which an electron gun is mounted. The glass panel and the funnel are sealed by a crystalline frit.
【０００３】ガラスパネルは溶融ガラス塊からプレス成
形され徐冷却工程を経て常温のガラスパネルに製造され
るが、一連の冷却過程ではガラスパネルの三次元的箱型
構造及び不等肉厚分布により各部分の冷却に遅速状態を
生じるため、ガラスパネルの温度分布は常に不均一のま
ま冷却され、ガラスの粘性流動を事実上起こさなくなる
歪点の温度を下回った部分から順次固化していくことに
なる。この結果、常温となった状態では一般的にガラス
パネル短軸上及び長軸上の封着端面部近辺で内側への傾
倒、対角軸上の封着端面部近辺で外側への傾倒を生じさ
せるようなガラスパネルの反りとなって歪が現れるとと
もに、対角軸上の封着端面部外側に引張応力が残留す
る。さらに、ガラスパネルをファンネルと封着する時の
昇温過程でも、同様に不均一な温度分布がガラスパネル
中に生じて、対角軸上の封着端面部を外側に傾倒させる
ような一時的な歪が生じることにより引張応力が加わ
り、前記成形時の残留引張応力との合力によりガラスが
破損することがある。この傾向は大型サイズで且つフェ
ース部の平坦性の高いガラスパネルで著しく、問題とな
る。A glass panel is press-molded from a molten glass lump and is manufactured into a room-temperature glass panel through a gradual cooling process. In a series of cooling processes, each glass panel has a three-dimensional box-shaped structure and an uneven thickness distribution. Since a slow state occurs in the cooling of the part, the temperature distribution of the glass panel is always kept non-uniform, and the part below the temperature of the strain point at which the viscous flow of the glass does not substantially occur will be solidified sequentially. . As a result, at room temperature, the glass panel generally tilts inward near the sealing end face on the short axis and long axis, and tilts outward near the sealing end face on the diagonal axis. The glass panel warps and causes distortion, and a tensile stress remains outside the sealing end face on the diagonal axis. Furthermore, even during the heating process when sealing the glass panel with the funnel, a non-uniform temperature distribution similarly occurs in the glass panel, and the sealing end face on the diagonal axis is tilted outward. The tensile stress is applied due to the generation of a large strain, and the glass may be broken by the combined force with the residual tensile stress during the molding. This tendency is remarkable and problematic in a large-sized glass panel having a flat face portion.
【０００４】また、ガラスパネルをファンネルと封着す
る時の昇温過程で生じる不均一な温度分布は、昇温速度
が大きいほど大きくなる。従って、封着時の昇温速度を
小さくできれば一時的に生じる歪みが小さくなり、ガラ
スの破損を抑制できる。[0004] In addition, the non-uniform temperature distribution that occurs in the process of increasing the temperature when the glass panel is sealed to the funnel increases as the temperature increase rate increases. Therefore, if the rate of temperature rise at the time of sealing can be reduced, the temporarily generated distortion is reduced, and breakage of the glass can be suppressed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、結晶性
フリットを使用して封着時の昇温速度を小さくしようと
することは困難である。つまり、結晶性フリットは、所
望の特性を得るために封着時に結晶を十分に析出させる
ことが必要で、４４０〜４６０℃の保持温度で、且つ３
０〜６０分の保持時間を要する。従って、封着工程時間
を一定にしたまま、昇温速度を小さくしようとすると、
保持温度を低下させたり、保持時間を短縮することにな
り、結晶性フリットでは流動が不十分で、且つ結晶化が
十分に進行しないため、十分なシール強度が得られな
い。However, it is difficult to reduce the rate of temperature rise during sealing using a crystalline frit. That is, the crystalline frit needs to sufficiently precipitate crystals at the time of sealing in order to obtain desired characteristics, and has a holding temperature of 440 to 460 ° C. and a temperature of 3 ° C.
A holding time of 0 to 60 minutes is required. Therefore, when trying to reduce the heating rate while keeping the sealing process time constant,
Since the holding temperature is lowered or the holding time is shortened, the flow of the crystalline frit is insufficient and the crystallization does not proceed sufficiently, so that sufficient sealing strength cannot be obtained.
【０００６】そこで、本発明の目的は、大型サイズにし
て且つフェース部の平坦性の高いガラスパネルを有しな
がら、ガラスパネルとファンネルが非晶質フリットによ
って封着されていることにより、封着時の昇温過程での
熱衝撃によるガラスの破損を抑制できる陰極線管用ガラ
スバルブを提供することである。Accordingly, an object of the present invention is to provide a glass panel having a large size and a high flatness in the face portion, while the glass panel and the funnel are sealed by an amorphous frit. It is an object of the present invention to provide a glass bulb for a cathode ray tube which can suppress breakage of glass due to thermal shock during a temperature rise process.
【０００７】[0007]
【課題を解決するための手段】本発明の陰極線管用ガラ
スバルブは、有効画面を形成する略矩形のフェース部か
らブレンドＲ部を介して連なるスカート部を有するガラ
スパネルと、ガラスパネルに封着されるファンネルと、
ファンネルに接合され電子銃が装着されるネックとで構
成されてなる陰極線管用ガラスバルブにおいて、前記ガ
ラスパネルのフェース部の対角軸方向における有効画面
径が６００ｍｍ以上、フェース部外面の平均曲率半径が
フェース部中央を通る全放射方向において１００００ｍ
ｍ以上であり、また前記ガラスパネルとファンネルが非
晶質フリットで封着されてなることを特徴とする。A glass bulb for a cathode ray tube according to the present invention has a glass panel having a skirt portion connected from a substantially rectangular face portion forming an effective screen through a blend R portion, and is sealed to the glass panel. Funnel and
In a glass bulb for a cathode ray tube comprising a neck bonded to a funnel and an electron gun, an effective screen diameter in a diagonal axis direction of a face portion of the glass panel is 600 mm or more, and an average radius of curvature of an outer surface of the face portion is reduced. 10,000m in all radial directions passing through the center of the face
m or more, and the glass panel and the funnel are sealed with an amorphous frit.
【０００８】また、本発明の陰極線管用ガラスバルブ
は、非晶質フリットの軟化点が３３０〜３８０℃であ
り、且つ３０〜２５０℃における熱膨張係数が８０〜９
５×１０ -7／℃であることを特徴とする。Further, a glass bulb for a cathode ray tube according to the present invention.
Indicates that the softening point of the amorphous frit is 330-380 ° C.
And a coefficient of thermal expansion at 30 to 250 ° C. of 80 to 9
5 × 10 -7/ ° C.
【０００９】また、本発明の陰極線管用ガラスバルブ
は、ガラスパネルの少なくとも短軸におけるフェース部
内面の有効画面端部とブレンドＲ部との接点からファン
ネルに封着される端面部までの管軸方向のスカート部長
さをｈとし、ファンネルのヨーク部の偏向角度をθと
し、ファンネルのガラスパネルに封着される端面部から
リファレンス線までの管軸方向距離をＨとするとき、１
／（０．２２ｔａｎ（θ／２））−１＜Ｈ／ｈ＜１／
（０．１８ｔａｎ（θ／２））−１なる関係を有するこ
とを特徴とする。Further, the glass bulb for a cathode ray tube according to the present invention has a tube axis direction from at least a short axis of the glass panel from a contact point between an effective screen end on the inner surface of the face and the blend R portion to an end face sealed to the funnel. When the length of the skirt portion is h, the deflection angle of the yoke portion of the funnel is θ, and the distance in the tube axis direction from the end face portion sealed to the glass panel of the funnel to the reference line is H, 1
/(0.22tan(θ/2))-1<H/h<1/
(0.18 tan (θ / 2)) − 1.
【００１０】[0010]
【作用】本発明の陰極線管用ガラスバルブは、ガラスパ
ネルとファンネルが非晶質フリットで封着されているた
め、結晶性フリットの場合と比べて、封着時の保持温度
を低く、且つ保持時間を短くしても十分なシール強度が
得られる。従って、封着工程にかかる所要時間を従来と
同じにした場合、昇温速度を従来より小さくできるた
め、その際生じる不均一な温度分布が抑制でき、対角軸
上の封着端面部外側に発生する一時的な引張応力が小さ
くなる。その結果、フェース部の対角軸方向における有
効画面径が６００ｍｍ以上という大型サイズであり、し
かもフェース部外面の平均曲率半径がフェース部中央を
通る全放射方向において１００００ｍｍ以上という平坦
性の高いガラスパネルを用いながら、封着時の昇温過程
での熱衝撃による対角軸封着部付近からのガラスの破損
を抑制することが可能となる。According to the glass bulb for a cathode ray tube of the present invention, since the glass panel and the funnel are sealed with an amorphous frit, the holding temperature at the time of sealing is lower and the holding time is shorter than that of a crystalline frit. Even if is shortened, sufficient sealing strength can be obtained. Therefore, when the time required for the sealing step is the same as the conventional one, the rate of temperature rise can be made smaller than before, so that the uneven temperature distribution that occurs at that time can be suppressed, and the sealing end face on the diagonal axis is outside. The generated temporary tensile stress is reduced. As a result, the glass panel has a large size in which the effective screen diameter in the diagonal axis direction of the face portion is 600 mm or more, and has a high flatness in which the average radius of curvature of the outer surface of the face portion is 10000 mm or more in all radial directions passing through the center of the face portion. It is possible to suppress breakage of the glass from near the diagonal shaft sealing portion due to thermal shock in the process of raising the temperature at the time of sealing.
【００１１】本発明で使用する非晶質フリットは、軟化
点が３３０〜３８０℃であることが望ましい。すなわ
ち、軟化点が３８０℃を超えると、保持温度が高くな
り、昇温速度を大幅に小さくできないため、封着時の昇
温過程での熱衝撃によるガラスの破損を十分に抑えるこ
とが困難となり、一方、軟化点が３３０℃未満では、封
着後の排気工程で、再加熱されたときに、パネルとファ
ンネルの位置ずれが生じ、封着不良が発生しやすくなる
ためである。The amorphous frit used in the present invention preferably has a softening point of 330 to 380 ° C. That is, if the softening point exceeds 380 ° C., the holding temperature increases, and the rate of temperature rise cannot be reduced significantly. Therefore, it is difficult to sufficiently suppress breakage of glass due to thermal shock during the temperature rise process during sealing. On the other hand, when the softening point is lower than 330 ° C., when the panel is reheated in the evacuation step after sealing, a positional shift between the panel and the funnel occurs, so that poor sealing easily occurs.
【００１２】また、本発明で使用する非晶質フリット
は、３０〜２５０℃における熱膨張係数を８０〜９５×
１０-7／℃に調整することが望ましい。すなわち、フリ
ットの熱膨張係数がこの範囲内にあると、陰極線管用ガ
ラスバルブに適度な大きさの歪（４５０〜１０００ｐｓ
ｉ）が生じ、高いシール強度を得ることができるからで
ある。しかし、熱膨張係数がこの範囲から外れると、異
常な歪が生じてフリットシール部やパネル、ファンネル
部が破損し易くなる。The amorphous frit used in the present invention has a coefficient of thermal expansion at 30 to 250 ° C. of 80 to 95 ×.
It is desirable to adjust to 10 −7 / ° C. That is, if the coefficient of thermal expansion of the frit is within this range, the glass bulb for a cathode ray tube has a moderate amount of distortion (450 to 1000 ps).
This is because i) occurs and high sealing strength can be obtained. However, when the coefficient of thermal expansion is out of this range, abnormal distortion occurs and the frit seal portion, panel, and funnel portion are easily damaged.
【００１３】非晶質フリットは、非晶質ガラス粉末と耐
火性フィラー粉末からなり、非晶質ガラス粉末は、主成
分としてＰｂＯ及びＢ2Ｏ3を含む組成系が好ましく、耐
火性フィラー粉末はアルミナ（Ａｌ2Ｏ3）やジルコン
（ＺｒＳｉＯ4）が最適であるが、これ以外にもコーデ
ィエライト（２ＭｇＯ・２Ａｌ2Ｏ3・５ＳｉＯ2）、チ
タン酸鉛（ＰｂＴｉＯ3）、石英ガラス（ａ−Ｓｉ
Ｏ2）、ウイレマイト（２ＺｎＯ・ＳｉＯ2）、酸化錫
（ＳｎＯ2）等が使用可能であり、これらを単独又は混
合して使用する。The amorphous frit is composed of an amorphous glass powder and a refractory filler powder. The amorphous glass powder preferably has a composition containing PbO and B 2 O 3 as main components. Alumina (Al 2 O 3 ) and zircon (ZrSiO 4 ) are most suitable, but other than this, cordierite (2MgO.2Al 2 O 3 .5SiO 2 ), lead titanate (PbTiO 3 ), quartz glass (a -Si
O 2), willemite (2ZnO · SiO 2), tin oxide (SnO 2) or the like can be used, to use singly or in combination.
【００１４】また、本発明の陰極線管用ガラスバルブ
は、ガラスパネルの少なくとも短軸におけるフェース部
内面の有効画面端部とブレンドＲ部との接点からファン
ネルに封着される端面部までの管軸方向のスカート部長
さをｈとし、これとファンネルの実質的な管軸方向の広
がり度を表すファンネルのヨーク部の偏向角度をθと
し、ファンネルのガラスパネルに封着される端面部から
リファレンス線までの管軸方向距離をＨとするとき、１
／（０．２２ｔａｎ（θ／２））−１＜Ｈ／ｈ＜１／
（０．１８ｔａｎ（θ／２））−１なる関係を有するこ
とが望ましい。つまり、パネルスカート部長さを適正化
し、陰極線管用ガラスバルブ全長寸法の変化をファンネ
ルボディ部長さの調整により補正することによって、所
定の機械的強度を維持しながら、封着時の昇温過程での
熱衝撃による対角軸封着部付近からの破損をさらに抑制
できる。尚、前記の規定をガラスバルブの短軸において
なした理由は、ガラスバルブに生じる最大真空引張応力
が、短軸上のフェース部の端からスカート部に亘る領域
において通常発生するためである。Further, the glass bulb for a cathode ray tube according to the present invention has a tube axis direction from at least a short axis of the glass panel from a contact point between an effective screen end on an inner surface of a face portion and a blend R portion to an end face portion sealed to a funnel. The length of the skirt portion is h, and the deflection angle of the yoke portion of the funnel, which represents the degree of expansion of the funnel in the tube axis direction, is θ, and the length from the end face portion sealed to the glass panel of the funnel to the reference line is When the distance in the pipe axis direction is H, 1
/(0.22tan(θ/2))-1<H/h<1/
It is desirable to have a relationship of (0.18 tan (θ / 2)) − 1. In other words, by adjusting the length of the panel skirt portion and correcting the change in the overall length of the glass bulb for the cathode ray tube by adjusting the length of the funnel body portion, while maintaining a predetermined mechanical strength, the temperature during the sealing process is increased. Damage from the vicinity of the diagonal shaft sealing portion due to thermal shock can be further suppressed. The reason why the above-mentioned definition is applied to the short axis of the glass bulb is that the maximum vacuum tensile stress generated in the glass bulb usually occurs in the region from the end of the face portion to the skirt on the short axis.
【００１５】１／（０．２２ｔａｎ（θ／２））−１≧
Ｈ／ｈの場合、スカート部が長すぎて、ガラスパネルの
対角軸封着端面部に存在する引張応力が比較的大きくな
り、ガラスパネルとファンネルとを封着する際の熱衝撃
によるガラスの破損の抑制効果が低下しやすい。1 / (0.22 tan (θ / 2))-1 ≧
In the case of H / h, the skirt portion is too long, the tensile stress existing on the diagonal shaft sealing end face of the glass panel becomes relatively large, and the glass is subjected to thermal shock when sealing the glass panel and the funnel. The effect of suppressing damage is likely to decrease.
【００１６】一方、Ｈ／ｈ≧１／（０．１８ｔａｎ（θ
／２））−１の場合、スカート部が短すぎることによ
り、ガラスバルブの排気により生じる封着部領域の真空
引張応力値が大きくなり、ガラスバルブに必要な所望の
機械的強度が得られにくい。On the other hand, H / h ≧ 1 / (0.18 tan (θ
In the case of / 2))-1, the skirt portion is too short, so that the vacuum tensile stress value in the sealed portion region caused by exhaustion of the glass bulb increases, and it is difficult to obtain the desired mechanical strength required for the glass bulb. .
【００１７】[0017]
【実施例】以下、実施例に基づいて本発明にかかる陰極
線管用ガラスバルブについて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a glass bulb for a cathode ray tube according to the present invention will be described based on embodiments.
【００１８】陰極線管用ガラスバルブの封着に使用する
フリットの構成及び特性を表１に示した。本発明に使用
する非晶質フリットを試料Ｎｏ．１〜６に、従来の結晶
性フリットを試料Ｎｏ．７に示した。表中の軟化点は、
示差熱分析（ＤＴＡ）装置により求めた。また熱膨張係
数は、ディラトメーターにより求めた。Table 1 shows the structure and characteristics of the frit used for sealing the glass bulb for a cathode ray tube. The amorphous frit used in the present invention was sample No. Sample Nos. 1 to 6 were each replaced with a conventional crystalline frit. 7 is shown. The softening point in the table is
It was determined by a differential thermal analysis (DTA) device. The coefficient of thermal expansion was determined by a dilatometer.
【００１９】[0019]
【表１】 [Table 1]
【００２０】図１は本発明にかかる陰極線管用ガラスバ
ルブの短軸断面図である。FIG. 1 is a short-axis sectional view of a glass bulb for a cathode ray tube according to the present invention.
【００２１】本発明の陰極線管用ガラスバルブは、非晶
質フリット３０によって、ガラスパネル１０とファンネ
ル２０とが封着されてなる。図中ｈは、ガラスパネル１
０の短軸におけるそのフェース部１１内面の有効画面端
部とブレンドＲ部１２との接点からスカート部１３の封
着端面部１４までの管軸方向距離を示し、これをスカー
ト部の長さとする。またＨはファンネル２０の封着端面
部２１からリファレンス線２２までの管軸方向距離を示
す。In the glass bulb for a cathode ray tube according to the present invention, the glass panel 10 and the funnel 20 are sealed by the amorphous frit 30. In the figure, h is the glass panel 1
The distance in the tube axis direction from the contact point between the effective screen edge on the inner surface of the face portion 11 and the blend R portion 12 at the short axis of 0 to the sealing end surface portion 14 of the skirt portion 13 is defined as the length of the skirt portion. . H indicates the tube axial distance from the sealing end face 21 of the funnel 20 to the reference line 22.
【００２２】本発明にかかるガラスパネルとファンネル
を各々作成し、表２から表７に示すそれぞれのフリット
に適した熱処理条件で封着し、その際の破損状況を観察
した。表２から表７の各表には、表１に示したフリット
試料Ｎｏ．、封着条件、陰極線管用ガラスパネルとファ
ンネルの各部寸法、並びに封着時の破損率を示してお
り、各表において、サンプルＡ〜Ｅ、Ｇ〜Ｋ、Ｍ〜Ｑ
は、本発明の実施例で、サンプルＦ、Ｌ、Ｒは比較例で
ある。A glass panel and a funnel according to the present invention were prepared, sealed under heat treatment conditions suitable for each frit shown in Tables 2 to 7, and the state of damage at that time was observed. Each of Tables 2 to 7 contains the frit sample No. 1 shown in Table 1. , Sealing conditions, dimensions of each part of a glass panel for a cathode ray tube and a funnel, and a breakage rate at the time of sealing, and in each table, samples A to E, G to K, and M to Q
Is an example of the present invention, and samples F, L, and R are comparative examples.
【００２３】表２及び表３は、フェース部の対角軸方向
の有効画面径が６００ｍｍ（２５インチ）でアスペクト
比が４：３であり、フェース部外面の最小平均曲率半径
が３００００ｍｍのガラスパネルと、偏向角度が１０６
°、１１０°及び９０°のファンネルとで構成した陰極
線管用ガラスバルブについてのデータである。ファンネ
ルの偏向角度が１０６°のサンプルＡ〜Ｃの陰極線管用
ガラスバルブは、サンプルＦの陰極線管用ガラスバルブ
よりも、封着時の昇温速度が小さいため、昇温過程での
熱衝撃によるガラスの破損を抑制できた。また、ファン
ネルの偏向角度が１１０°と９０°のサンプルＤ、Ｅの
陰極線管用ガラスバルブもサンプルＡ〜Ｃと同様に昇温
過程での熱衝撃によるガラスの破損を抑制できた。Tables 2 and 3 show glass panels having an effective screen diameter of 600 mm (25 inches) in the diagonal axis direction of the face portion, an aspect ratio of 4: 3, and a minimum average radius of curvature of the outer surface of the face portion of 30,000 mm. And the deflection angle is 106
It is the data about the glass bulb for cathode ray tubes comprised of the funnel of °, 110 °, and 90 °. The glass bulbs for cathode ray tubes of Samples A to C having a funnel deflection angle of 106 ° have a lower heating rate at the time of sealing than the glass bulb for cathode ray tubes of Sample F. Damage was suppressed. Further, similarly to Samples A to C, the glass bulbs for cathode ray tubes of Samples D and E in which the funnel deflection angles were 110 ° and 90 ° were able to suppress breakage of glass due to thermal shock during the heating process.
【００２４】[0024]
【表２】 [Table 2]
【００２５】[0025]
【表３】 [Table 3]
【００２６】表４及び表５は、フェース部の対角軸方向
の有効画面径が７６０ｍｍ（３２インチ）でアスペクト
比が１６：９であり、フェース部外面の最小平均曲率半
径が１０００００ｍｍのガラスパネルと、偏向角度が１
０３°、１１０°及び９０°のファンネルとで構成した
陰極線管用ガラスバルブについてのデータである。ファ
ンネルの偏向角度が１０６°のサンプルＧ〜Ｉの陰極線
管用ガラスバルブは、サンプルＬの陰極線管用ガラスバ
ルブよりも、封着時の昇温速度が小さいため、昇温過程
での熱衝撃によるガラスの破損を抑制できた。また、フ
ァンネルの偏向角度が１１０°と９０°のサンプルＪ、
Ｋの陰極線管用ガラスバルブもサンプルＧ〜Ｉと同様に
昇温過程での熱衝撃によるガラスの破損を抑制できた。Tables 4 and 5 show a glass panel having an effective screen diameter in the diagonal axis direction of the face portion of 760 mm (32 inches), an aspect ratio of 16: 9, and a minimum average radius of curvature of the outer surface of the face portion of 100,000 mm. And the deflection angle is 1
It is the data about the glass bulb for cathode ray tubes comprised with the funnel of 03 degrees, 110 degrees, and 90 degrees. The glass bulbs for cathode ray tubes of Samples GI having a funnel deflection angle of 106 ° have a lower heating rate at the time of sealing than the glass bulb for cathode ray tube of Sample L. Damage was suppressed. Also, sample J in which the funnel deflection angles are 110 ° and 90 °,
Similarly to the samples GI, the glass bulb for the cathode ray tube of K was able to suppress the breakage of the glass due to the thermal shock during the heating process.
【００２７】[0027]
【表４】 [Table 4]
【００２８】[0028]
【表５】 [Table 5]
【００２９】表６及び表７は、フェース部の対角軸方向
の有効画面径が８６０ｍｍ（３６インチ）でアスペクト
比が１６：９であり、フェース部外面の最小平均曲率半
径が５００００ｍｍのガラスパネルと、偏向角度が１０
３°、１１０°及び９０°のファンネルとで構成した陰
極線管用ガラスバルブについてのデータである。ファン
ネルの偏向角度が１０６°のサンプルＭ〜Ｏの陰極線管
用ガラスバルブは、サンプルＲの陰極線管用ガラスバル
ブよりも封着時の昇温速度を小さいため、昇温過程での
熱衝撃によるガラスの破損を抑制できた。また、ファン
ネルの偏向角度が１１０°と９０°のサンプルＰ、Ｑの
陰極線管用ガラスバルブもサンプルＭ〜Ｏと同様に昇温
過程での熱衝撃によるガラスの破損を抑制できた。Tables 6 and 7 show glass panels having an effective screen diameter in the diagonal axis direction of the face portion of 860 mm (36 inches), an aspect ratio of 16: 9, and a minimum average radius of curvature of the outer surface of the face portion of 50,000 mm. And the deflection angle is 10
It is the data about the glass bulb for cathode ray tubes comprised with the funnel of 3 degrees, 110 degrees, and 90 degrees. The glass bulbs for cathode ray tubes of Samples M to O having a funnel deflection angle of 106 ° have a lower heating rate at the time of sealing than the glass bulb for cathode ray tubes of Sample R, so that glass breakage due to thermal shock during the heating up process. Could be suppressed. Further, the glass bulbs for cathode ray tubes of Samples P and Q having funnel deflection angles of 110 ° and 90 ° were able to suppress glass breakage due to thermal shock during the temperature rise process, similarly to Samples M to O.
【００３０】[0030]
【表６】 [Table 6]
【００３１】[0031]
【表７】 [Table 7]
【００３２】[0032]
【発明の効果】以上説明したように、本発明の陰極線管
用ガラスバルブは、大型サイズにして且つフェース部の
平坦性の高いガラスパネルを有しながら、非晶質フリッ
トの使用により、封着時の昇温過程での熱衝撃によるガ
ラスの破損を抑制できるという優れた効果を奏するもの
である。As described above, the glass bulb for a cathode ray tube according to the present invention has a large size and a glass panel with a high flatness of the face portion, but the use of an amorphous frit allows the glass bulb to be sealed at the time of sealing. This has an excellent effect that breakage of glass due to thermal shock during the temperature rise process can be suppressed.
【図１】本発明の陰極線管用ガラスバルブの短軸断面説
明図である。FIG. 1 is an explanatory view of a short axis cross section of a glass bulb for a cathode ray tube of the present invention.
１０ ガラスパネル １１ フェース部 １２ ブレンドＲ部 １３ スカート部 １４ パネル封着端面部 ２０ ファンネル ２１ ファンネル封着端面部 ２２ リファレンス線 ３０ 非晶質フリット DESCRIPTION OF SYMBOLS 10 Glass panel 11 Face part 12 Blend R part 13 Skirt part 14 Panel sealing end face part 20 Funnel 21 Funnel sealing end face part 22 Reference line 30 Amorphous frit
Claims (3)
からブレンドＲ部を介して連なるスカート部を有するガ
ラスパネルと、ガラスパネルに封着されるファンネル
と、ファンネルに接合され電子銃が装着されるネックと
で構成されてなる陰極線管用ガラスバルブにおいて、前
記ガラスパネルのフェース部の対角軸方向における有効
画面径が６００ｍｍ以上、フェース部外面の平均曲率半
径がフェース部中央を通る全放射方向において１０００
０ｍｍ以上であり、また前記ガラスパネルとファンネル
が非晶質フリットで封着されてなることを特徴とする陰
極線管用ガラスバルブ。1. A glass panel having a skirt portion connected via a blend R portion from a substantially rectangular face portion forming an effective screen, a funnel sealed to the glass panel, an electron gun joined to the funnel and mounted. In the glass bulb for a cathode ray tube, the effective screen diameter in the diagonal axis direction of the face portion of the glass panel is 600 mm or more, and the average radius of curvature of the outer surface of the face portion in all radial directions passing through the center of the face portion. 1000
A glass bulb for a cathode ray tube, which is not less than 0 mm and wherein the glass panel and the funnel are sealed with an amorphous frit.
０℃であり、且つ３０〜２５０℃における熱膨張係数が
８０〜９５×１０-7／℃であることを特徴とする請求項
１の陰極線管用ガラスバルブ。2. The softening point of the amorphous frit is from 330 to 38.
2. The glass bulb for a cathode ray tube according to claim 1, wherein the glass bulb has a coefficient of thermal expansion at 0 ° C. and a temperature of 30 to 250 ° C. of 80 to 95 × 10 −7 / ° C.
フェース部内面の有効画面端部とブレンドＲ部との接点
からファンネルに封着される端面部までの管軸方向のス
カート部長さをｈとし、ファンネルのヨーク部の偏向角
度をθとし、ファンネルのガラスパネルに封着される端
面部からリファレンス線までの管軸方向距離をＨとする
とき、１／（０．２２ｔａｎ（θ／２））−１＜Ｈ／ｈ
＜１／（０．１８ｔａｎ（θ／２））−１なる関係を有
することを特徴とする請求項１の陰極線管用ガラスバル
ブ。3. A length of a skirt portion in a tube axis direction from a contact point between an effective screen end portion of an inner surface of a face portion and a blend R portion on at least a short axis of a glass panel to an end face portion sealed to a funnel is defined as h. When the deflection angle of the yoke portion is θ, and the distance in the tube axis direction from the end face portion sealed to the glass panel of the funnel to the reference line is H, 1 / (0.22 tan (θ / 2)) − 1 <H / h
2. The glass bulb for a cathode ray tube according to claim 1, wherein the glass bulb has a relation of <1 / (0.18 tan ([theta] / 2))-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11236120A JP2001060442A (en) | 1999-08-23 | 1999-08-23 | Glass bulb for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11236120A JP2001060442A (en) | 1999-08-23 | 1999-08-23 | Glass bulb for cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001060442A true JP2001060442A (en) | 2001-03-06 |
Family
ID=16996053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11236120A Pending JP2001060442A (en) | 1999-08-23 | 1999-08-23 | Glass bulb for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001060442A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100426571B1 (en) * | 2002-03-07 | 2004-04-14 | 엘지.필립스디스플레이(주) | A Funnel Structure of The Cathode-Ray-Tube |
| KR100447649B1 (en) * | 2002-07-15 | 2004-09-07 | 엘지.필립스디스플레이(주) | A Color CRT |
-
1999
- 1999-08-23 JP JP11236120A patent/JP2001060442A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100426571B1 (en) * | 2002-03-07 | 2004-04-14 | 엘지.필립스디스플레이(주) | A Funnel Structure of The Cathode-Ray-Tube |
| KR100447649B1 (en) * | 2002-07-15 | 2004-09-07 | 엘지.필립스디스플레이(주) | A Color CRT |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5013317B2 (en) | Flat panel display | |
| WO2008050772A1 (en) | Bismuth-base glass composition and bismuth-base material | |
| JP2007297266A (en) | Amorphous glass tablet and tablet-integrated evacuation tube | |
| JP5083705B2 (en) | Crystalline bismuth-based material | |
| JP4974046B2 (en) | Glass spacer for flat display device and spacer using the same | |
| CN1308366A (en) | Glass panel for cathode ray tube and cathode ray tube and method for making the same | |
| JP5476691B2 (en) | Sealing material | |
| US3912482A (en) | Method of providing a sealed joint for joining parts of a vacuum vessel | |
| JP2001060442A (en) | Glass bulb for cathode ray tube | |
| KR20020087852A (en) | Glass panel for color cathode ray tube, and cathode ray tube | |
| CN101326608B (en) | Plasma display panel | |
| JP3847562B2 (en) | Glass bulb for cathode ray tube | |
| JP4947486B2 (en) | Glass for flat image display device, glass substrate using the same, and manufacturing method thereof | |
| JPWO2002042232A1 (en) | Color cathode ray tube and glass frit for color cathode ray tube | |
| US3041127A (en) | Method of fabricating a cathode ray tube | |
| JPH11116274A (en) | Sealing composition | |
| JP2006188406A (en) | Vacuum envelope for flat panel display and flat panel display using the same | |
| JP2002255593A (en) | Method for manufacturing low pressure double glazing | |
| US6727640B2 (en) | Glass bulb for a cathode-ray tube and a cathode-ray tube device | |
| EP1152450A1 (en) | Cathode-ray tube and its production method | |
| JP5105299B2 (en) | Glass exhaust pipe | |
| JP2000239042A (en) | Frit for crt | |
| CN1389896A (en) | Glass bulb for colour cathode ray tube and colour cathode ray tube | |
| JP2006083019A (en) | Spacer for image display device and image display device | |
| JP2002358910A (en) | Glass panel for cathode-ray tube and glass bulb for cathode-ray tube |