JPS60232639A - Color braun tube - Google Patents

Color braun tube

Info

Publication number
JPS60232639A
JPS60232639A JP8865484A JP8865484A JPS60232639A JP S60232639 A JPS60232639 A JP S60232639A JP 8865484 A JP8865484 A JP 8865484A JP 8865484 A JP8865484 A JP 8865484A JP S60232639 A JPS60232639 A JP S60232639A
Authority
JP
Japan
Prior art keywords
face panel
shadowmask
shadow mask
frame
panel
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
Application number
JP8865484A
Other languages
Japanese (ja)
Inventor
Yukiro Yamaguchi
山口　幸郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8865484A priority Critical patent/JPS60232639A/en
Publication of JPS60232639A publication Critical patent/JPS60232639A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To enlarge the display area of shadowmask type color Braun tube by fitting the projection of spring section fixed to the shadowmask structure into a recess made in the inner wall of panel thereby holding the shadowmask structure in the face panel. CONSTITUTION:When holding a shadowmask structure constructed with a shadowmask 9 and a frame 10 in a face panel 7, the projections 13 of three springs 12 are fitted in recesses 8 made in the sidewall of face panel 7. When employing recesses 8 rather than pins at a shadowmask holding mechanism provided on the sidewall of face panel 7, the frame can be enlarged because consideration is required only for the fitting with the face panel 7. Consequently, the hole in the shadowmask is also enlarged.

Description

【発明の詳細な説明】 発明の分野 本発明はシャドウマスク型カラーブラウン管の表示領域
の拡大に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to enlarging the display area of a shadow mask type color cathode ray tube.

従来技術および問題 シャドウマスク型カラーブラウン管は、そのすぐれた性
能の故に家庭用テレビはもちろん種々の情報表示用とし
て広く用いられるようになり九。PRIOR ART AND PROBLEMS Due to its excellent performance, shadow mask type color cathode ray tubes have come to be widely used not only for home televisions but also for displaying various information.

しかしながらその内部にシャドクマスク保持機構を備え
ているために、シャドウマスクの有孔部分と７エイスパ
ネル側壁との間には一定の距離が必要である。第１図は
このような従来のフェイスパネルとシャドウマスク構体
の関係を示すものである。すなわちフェイスパネルの内
側壁にはクヤドウマスク構体保持のためのビン２が少く
共３カ所埋め込まれ、一方シャドウマスク３は機械的強
度を増すだめのフレーム４に溶接された上、フレームに
取シ付けられたスプリング５に設けられた開口６にフェ
イスパネルのビン２をはめ込むことによってフェイスパ
ネル内に保持される。このようなりヤドウマスクの保持
機構は螢光面製造のため、フェイスパネルとシャドウ１
スク構体を数回着脱する必要があることから採用されて
いるものである。従って安定で作業性の良いことが必要
であシ、通常の設計ではフレームの外側とフェイスパネ
ル内壁との間の距離は５龍前後となっている。従ってフ
ェイスパネルの外形と有効スクリーンとの間にはフェイ
スパネルの厚さの外に、上記の理由から、表示に役立た
ない無駄なスペースが生ビること（なる。このような無
駄なスペースはブラウン管のサイズが小さくなるに従っ
て相対的に大きな部分を占めることになり、フェイスパ
ネルに対する表示面積の制限要因となっていた。However, since a shadow mask holding mechanism is provided inside the shadow mask, a certain distance is required between the perforated portion of the shadow mask and the side wall of the 7-eighth panel. FIG. 1 shows the relationship between such a conventional face panel and shadow mask structure. That is, the bottles 2 for holding the Kuyado mask structure are embedded in at least three places in the inner wall of the face panel, while the shadow mask 3 is welded to a frame 4 to increase mechanical strength and is attached to the frame. It is held within the face panel by fitting the face panel bottle 2 into the opening 6 provided in the spring 5. In this way, the holding mechanism of the Yado mask is made of fluorescent surface, so the face panel and shadow 1
This method was adopted because it is necessary to attach and detach the screen structure several times. Therefore, it is necessary to be stable and have good workability, and in a normal design, the distance between the outside of the frame and the inner wall of the face panel is about 50 mm. Therefore, in addition to the thickness of the face panel, there is a wasted space between the outer shape of the face panel and the effective screen that is not useful for display. As the size of the face panel decreases, it occupies a relatively large portion, which becomes a limiting factor for the display area of the face panel.

発明の目的 本発明ｉｌ：以上のような表示領域の制限を改善したカ
ラーブラウン管を提供することでちる。OBJECTS OF THE INVENTION The object of the present invention is to provide a color cathode ray tube that improves the display area limitation as described above.

発明の実施例 第２図にその一実施例を示す。フェイスパネルの側壁に
設けられたものは従来のビン２０代シに凹状穴８であシ
、ここにスプリング１２に設けられた凸状突起１３がは
め込まれる。クヤドゥマスク構体をフェイスパネルには
め込む時には、３つのスプリング１２を、フレーム１ｏ
の内側に曲げる。スプリングの突起１３がフレーム外形
内にはいるまで十分に押え込めるようフレーム側壁には
開口１１を設けている。このように本発明テハフェイス
バ不ル側壁に設けられたシャドウマスク保持機構をビン
２ではなく凹状穴８としたため、従来ビン２とフレーム
４とのふつつかシを防ぐ為に必要であった空間が不要と
なる。従って本発明の場合のフレーム１０はフェイスパ
ネル７に対するはめ合ｔ／＞りけを青磁すればよいので
それだけ大きくすることができる。その結果シャドウマ
スクの有孔径も大きくとることができるのでフェイスに
形成される有効スクリーンも拡大できる。ここで）Ｖ−
ム側壁に設け７Ｃ，開口１１は電子ビームの漏れを防ぐ
ために凹部であってもその目的を達することができるこ
とは明らかである。又スプリング１２は３個の場合につ
いて示したが、それが４個又はそれ以上であっても発明
主旨にかわシはない。Embodiment of the invention FIG. 2 shows an embodiment of the invention. The side wall of the face panel is provided with a concave hole 8 similar to that of a conventional bottle 20, into which a convex projection 13 provided on a spring 12 is fitted. When fitting the Kuyadu mask structure into the face panel, attach the three springs 12 to the frame 1o.
Bend inward. An opening 11 is provided in the side wall of the frame so that the spring protrusion 13 can be sufficiently pressed until it enters the outer shape of the frame. In this way, since the shadow mask holding mechanism provided on the side wall of the face bar according to the present invention is made of the concave hole 8 instead of the bottle 2, the space that was conventionally required to prevent the bottle 2 and the frame 4 from being pinched is no longer required. Become. Therefore, in the case of the present invention, the frame 10 can be made larger because the fit to the face panel 7 can be made of celadon. As a result, the hole diameter of the shadow mask can be made larger, so that the effective screen formed on the face can also be enlarged. where) V-
It is clear that the purpose can be achieved even if the opening 7C and the opening 11 provided in the side wall of the beam are recessed to prevent leakage of the electron beam. Furthermore, although the case is shown in which there are three springs 12, the spirit of the invention does not change even if there are four or more springs.

更にシャドウマスク９とフレーム１０が一体に形成され
ていても本発明の実施方法や効果は同様であることも明
らかである。Furthermore, it is clear that even if the shadow mask 9 and the frame 10 are integrally formed, the implementation method and effects of the present invention are the same.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のフェイスパネルの構造とその中にはめこ
まれて保持されるシャドウマスク組立構体を示し、第２
図は本発明によるフェイスパネルの構造とその中にはめ
こまれて保持されるシャドウマスク組立構体を示す。 １・・・・・・フェイスパネル、２・・川・ピン、３，
９・・・・・・シャドウマスク、４．１０・川・・フレ
ーム、５゜１２・・・・・・スプリング、６・・・・・
・スプリング開口、７・・・・・・フェイスパネル、８
・川・・フェイスパネル側壁凹部、１１・・・・・・フ
レーム側壁部開口、１３・・・・パスプリング部突起。Figure 1 shows the structure of a conventional face panel and the shadow mask assembly structure fitted and held therein.
The figure shows the structure of a face panel according to the invention and a shadow mask assembly fitted and retained therein. 1...face panel, 2...river pin, 3,
9... Shadow mask, 4.10 River... Frame, 5゜12... Spring, 6...
・Spring opening, 7...Face panel, 8
・River: Face panel side wall recess, 11: Frame side wall opening, 13: Pa spring part protrusion.

Claims (1)

【特許請求の範囲】[Claims] シャドウマスク型カラーブラウン管のクヤドウマスクを
フェイスパネルに保持する機構において、パネルの内壁
に凹状穴部をもうけ、シャドウマスク構体部に取シ付け
たバネ部に凸状突起をもうけ、これらの凹状穴に凸状突
起をはめ込むことによってシャドウマスク構体をフェイ
スパネル内に保持することを特徴とするカラーブラウン
管。In the mechanism for holding a shadow mask type color cathode ray tube mask on a face panel, a concave hole is formed in the inner wall of the panel, a convex protrusion is provided in a spring attached to the shadow mask structure, and a convex hole is provided in the concave hole. A color cathode ray tube characterized in that a shadow mask structure is held within a face panel by fitting projections.
JP8865484A 1984-05-02 1984-05-02 Color braun tube Pending JPS60232639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8865484A JPS60232639A (en) 1984-05-02 1984-05-02 Color braun tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8865484A JPS60232639A (en) 1984-05-02 1984-05-02 Color braun tube

Publications (1)

Publication Number Publication Date
JPS60232639A true JPS60232639A (en) 1985-11-19

Family

ID=13948808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8865484A Pending JPS60232639A (en) 1984-05-02 1984-05-02 Color braun tube

Country Status (1)

Country Link
JP (1) JPS60232639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982084A (en) * 1997-05-29 1999-11-09 Matsushita Electronics Corporation Color cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982084A (en) * 1997-05-29 1999-11-09 Matsushita Electronics Corporation Color cathode ray tube

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