WO1998019325A1 - Film-type saddle deflection member for a crt using a two-sided connection film - Google Patents

Film-type saddle deflection member for a crt using a two-sided connection film Download PDF

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Publication number
WO1998019325A1
WO1998019325A1 PCT/KR1996/000273 KR9600273W WO9819325A1 WO 1998019325 A1 WO1998019325 A1 WO 1998019325A1 KR 9600273 W KR9600273 W KR 9600273W WO 9819325 A1 WO9819325 A1 WO 9819325A1
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WO
WIPO (PCT)
Prior art keywords
connection
films
deflection
nth
film
Prior art date
Application number
PCT/KR1996/000273
Other languages
French (fr)
Inventor
Baek Young Choi
Soo Ryong Byun
Don Bean Choi
Original Assignee
Orion 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
Priority claimed from KR1019960048149A external-priority patent/KR100227695B1/en
Priority claimed from KR1019960048150A external-priority patent/KR100227696B1/en
Application filed by Orion Electric Co., Ltd. filed Critical Orion Electric Co., Ltd.
Publication of WO1998019325A1 publication Critical patent/WO1998019325A1/en

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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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/70—Electron beam control outside the vessel
    • H01J2229/703—Electron beam control outside the vessel by magnetic fields
    • H01J2229/7032—Conductor design and distribution
    • H01J2229/7035—Wires and conductors
    • H01J2229/7036—Form of conductor
    • H01J2229/7037—Form of conductor flat, e.g. foil, or ribbon type

Definitions

  • the present invention generally relates to a film- type saddle deflection member of a cathode ray tube. More particularly, the present invention relates to a film-type saddle deflection member of a cathode ray tube using two- sided connection films which facilitate wiring of a desired circuit.
  • the film-type saddle deflection member of the present invention comprises a plurality of deflection films such as flexible printed circuit substrates containing a plurality of wires, and a plurality of connection films for forming a funnel end turn portion by connecting the deflection films in such a manner that the wires of the deflection films may form a predetermined circuit.
  • FIG. 1 shows a color-picture cathode ray tube 10 including a panel 12 having a face plate 18, a phosphor screen 20 formed on the back of the face plate 18, a neck 14 containing an electron gun 11 which produces electron beams 19a and 19b and emits them towards the phosphor screen 20, a funnel 13 for connecting the neck 14 to the panel 12, and a deflection yoke assembly 17 mounted on a connection portion at which the neck 14 is connected to the funnel 13.
  • the funnel 13 has an internal conductive layer (not shown) contacting an anode terminal 15.
  • a shadow mask 16 which has a plurality of apertures or slots 16a arranged in a predetermined pattern, is spaced at a predetermined distance apart from the screen 20 and is detachably installed in the panel 12.
  • the deflection yoke assembly 17 generally has a pair of film-type horizontal deflection members and a pair of film-type vertical deflections members formed into predetermined shapes by heat of high temperature, together with a plurality of laminated films such as flexible printed circuit substrates.
  • the horizontal deflection members produce a horizontal deflection magnetic-field for horizontally deflecting the electron beams 19a and 19b.
  • the vertical deflection members also produce a vertical deflection magnetic-field for vertically deflecting the electron beams 19a and 19b as a current is applied to the vertical deflection members.
  • the deflection magnetic-field is preferably varied by a proper means in such a manner that the electron beams 19a and 19b can be scanned over all the phosphor screen 20, thereby providing two-dimensional images having an optimum deflection sensitivity on the cathode ray tube 12.
  • deflection of the magnetic field permits the horizontal deflection member to produce a pincushion magnetic field, and permits the vertical deflection member to produce a barrel magnetic field so that the three kinds of electron beams of an in-line type electron gun is easily converged.
  • FIG. 2 shows European Patent Publication No. E.P. 0 1169 613 Al issued to Philips Electronic and Associated Ind. Ltd. et al., which discloses a film-type saddle horizontal deflection member 30 mounted as mentioned above.
  • the saddle horizontal deflection member 30 comprises a deflection film 31 and a connection film 35 electrically connected to the deflection film 31 so as to form a predetermined electric circuit.
  • the center portion of the deflection film 31 is severed by a predetermined width, and a neck end turn portion 34 connects the severed two parts of the deflection film 31 to each other.
  • a plurality of conductive wires disposed in both severed sides of the deflection film 31 respectively form deflection portions 32 and 33.
  • connection portions 32' and 33' at which each conductive wire is exposed, are formed at both ends of deflection portions 32 and 33.
  • the connection film 35 forming a U-shaped bridging member of the deflection film 31 is provided with connection portions 35' and 35', at the ends of which the plural conductive wires are exposed, thereby winding the connection portions 32' and 33' of the deflection film 31 such that they form a predetermined circuit.
  • the construction of the above described film-type saddle deflection member does not provide stability for the shape of the deflection film 31 and make it easy to connect or attach the deflection film 31 and the connection film 35. In addition, it requires a separate electric connection for providing a predetermined circuit between the films adjacent to one on another.
  • the present invention has been made to overcome the above described problem, and accordingly, it is an object of the present invention to provide a film-type saddle deflection member of a cathode ray tube using two-sided connection films, in which deflection films and connection films can be easily connected to each other, and a predetermined circuit can be formed without a separate electric connection even between vertically adjacent films .
  • a film-type saddle deflection member of a cathode ray tube using two-sided connection films comprising: a first to Nth deflection films provided in a neck funnel portion of the cathode ray tube, each of the first to Nth deflection films containing a plurality of conductive wires for producing a desired deflection magnetic field when electric current flows through the conductive wires, each of the first to Nth deflection films including a pair of deflection portions, a neck end turn, and a pair of connection portions; and a first to Nth connection films, each of the first to Nth connection films including a pair of right and left connection portions, each of the first to Nth connection films providing a funnel end turn portion interconnecting the pair of connection portions with each other through the pair of connection portions, so as to make the conductive wires in the deflection films form a predetermined circuit, wherein the first connection film of the connection films has a first to Nth deflection films provided in a neck funnel portion of the cathode
  • the last connection terminals of the left connection portions of the deflection films may be separated from each other, so as to facilitate connection between two layers.
  • connection terminals of the right connection portion and the connection terminals of the left connection portions of the deflection films may be respectively separated to make a number capable of preventing the deflection films from being deformed when they are bent to have desired shapes, and the connection terminals of the right connection portions and the connection terminals of the left connection portions of the connection films may be formed corresponding to and spaced apart from the connection terminals of the deflection films.
  • FIG. 1 is a longitudinally and partially sectional plan view for schematically illustrating the structure of a color-picture cathode ray tube
  • FIG. 2 is a perspective view for illustrating the construction of a conventional film-type saddle deflection member of a color-picture cathode ray tube
  • FIG. 3 is a perspective view showing a deflection film and a connection film, shown in a separated state from each other, which constitute a film-type saddle horizontal deflection member according to the present invention
  • FIG. 4 is a detailed view for showing the attachment between the deflection film and the connection film in the top layer of the film-type saddle deflection member in
  • FIG. 3 and their connection to the second connection film
  • FIG. 5 is a sectional view, taken along line A-A in FIG. 4, illustrating the deflection member of the present invention having four films;
  • FIG. 6 is a sectional view, taken along line B-B in FIG. 4, illustrating the deflection member of the present invention having four films;
  • FIG. 3 is a perspective view showing a deflection film and a connection film, shown in a separated state from each other, which constitute a film-type saddle horizontal deflection member according to the present invention.
  • the film-type saddle horizontal deflection member comprises a plurality of deflection films F1...FN and a plurality of connection films C1...CN.
  • the deflection films F1...FN contains a plurality of conductive wires for producing a desired deflection magnetic field when electric current flows through the conductive wires.
  • the deflection films F1...FN further includes a pair of deflection portions FR and FL, a neck end turn FE, and a pair of connection portions FIR and F1L.
  • connection films C1...CN provide a funnel end turn portion interconnecting the pair of connection portions FIR and F1L with each other through a pair of connection portions C1...CN, so as to make the conductive wires in the deflection films F1...FN form a predetermined circuit.
  • the pair of the connection portions FIR and FIL are respectively divided into at least two sections and bent at line B from the deflection portions FR and FL in the same plane as that of the connection film Cl(CN), so as to facilitate their connection with the connection portions C1R and C1L of the connection film C1...CN.
  • connection portion F 1LN , ...FNL1...FNLN) , ( C1R1... C1RN, ... CNR1... CNRN ) , (C1L1...ClL(N-l), C1I, ...CNL1... CNLN) provided at each connection portion are exposed to the exterior. Therefore, a predetermined circuit can be formed by connecting the connection terminals.
  • the film-type saddle deflection member constructed as mentioned above can be easily bent to have a desired shape because the connection portions FIR...FNL of the deflection film F1...FN are separated from each other. Further, when the connection films C1...CN are adjusted relative to the deflection films F1...FN, the connection portions F1...FN of the deflection films F1...FN can be easily located at the same plane as that of the connection films C1...CN due to their separation to each other, thereby facilitating the attachment for electric connection between them.
  • FIG. 4 shows in detail the attachment between the deflection film Fl and the connection film Cl in the top layer of the above-mentioned film-type saddle deflection member, and their connection to the second connection film C2. FIGs.
  • FIGs. 4 to 6 illustrate sectional views, taken along lines A-A and B-B in FIG. 4, for illustrating the deflection member of the present invention having four films .
  • an entrance terminal C1I which is provided at the top or uppermost connection film Cl of the connection films C1...CN, is interconnected to the first connection terminal C1R1 of the right connection portion CIL through an inner conductive wire in the top connection film Cl.
  • the first to the (N-l)th connection terminals C1L1...ClL(N-l) of the left connection portion CIL are respectively connected through the inner conductive wires to the second to the Nth connection terminals C1R2...C1RN of the right connection portion C1R one after another in order.
  • the first to the Nth connection terminals F1R1...F1RN of the right connection portion FIR of the deflection film Fl are electrically connected to the first to the Nth connection terminals C1R1...C1RN of the right connection portion C1R, respectively.
  • the first to the (N-l)th connection terminals FILL ..FlL(N-l) of the left connection portion FIL of the deflection film Fl are electrically connected to the first to the (N-l)th connection terminals C1L1...C1L(N-1 ) of the left connection portion CIL, respectively.
  • connection terminal F1LN of the left connection portion FNL of the top deflection film Fl is connected to the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2, and the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2 is connected through an inner conductive wire to the first connection terminal C2R1 of the right connection portion C2R of the second connection film C2.
  • Connections in like manner as above are established between the connection portions C2R...CNL of the second to the Nth connection films C1...CN and the second to the Nth deflection films F2...FN, thereby forming a predetermined circuit.
  • the last or the Nth connection terminal FNLN of the left connection portion FNL of the last deflection film FN functions as another entrance terminal, that is, a terminal for providing a connection to the exterior, along with the entrance terminal C1I of the first connection film Cl.
  • the last connection terminals F1LN...F(N-1)LN of the left connection portions FIL...F(N- 1)L of the first to (N-l)th deflection films Fl.-.F(N-l) are respectively connected to the adjacent lower one of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN.
  • Each of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN is connected through the inner conductive wires to each of the first connection terminals C2R1...CNR1 of the right connection portions C2R...CNR of the second to the Nth connection films C1...CN one after another.
  • the last connection terminal FNLN of the left connection portion FNL of the lowermost deflection film FN forms an entrance terminal.
  • connection terminals F1R1...F1RN, ...FNR1...FNRN of the right connection portion F1R...FNR and the connection terminals F1L1...F1LN, ...FNL1...FNLN of the left connection portions FIL...FNL of the deflection films F1...FN are electrically connected to the connection terminals C1R1...C1RN, ...CNR1...
  • connection terminals F1LN...FNLN of the left connection portion FIL... FNL of the deflection films F1...FN are separated from each other, they can be easily connected to the adjacent lower one of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN.
  • the inner conductive wire for connecting the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2 to the first connection terminal C2L1 of the right connection portion C2L of the second connection film C2 is connected to the first connection terminal C2L1 of the right connection portion across the front side of the first to the (N-l)st connection terminals of the left connection portion in FIG. 4.
  • other conductive wires extend from the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the second to the Nth connection films C2...CN across the front side of the first to the (N-l)th connection terminals of the left connection portions, and then are connected to the first connection terminals of the right connection portion.
  • the first connection terminals of the right connection portions and the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the second to the Nth connection films C2...CN are connected to each other, so that the length of the left connection portions of the second to the Nth connection films is formed longer than that of the right connection portions, thereby preventing the length of the deflection film from changing.
  • the present invention may employ a two- sided construction in which wires are arranged on both sides of each of the second to the Nth connection films C2...CN as shown in FIGs. 7 through 10.
  • FIGs. 7 and 8 show sectional views of a two-sided connection film according to the first embodiment of the present invention, while FIGs. 9 and 10 to the second embodiment .
  • the second to the Nth connection films C2...CN respectively have a two-sided structure in which wires are arranged on both sides thereof, while each connection terminal of both wires is formed on any one side only at the connection portion.
  • connection terminals C2L1...CNL(N-l) of the left connection portion and the first to the Nth connection terminals C2R2...CNRN of the right connection portions respectively are formed at one side only of the left connection portion and of the right connection portions, and are connected each other through the two- sided wires Cu and Cu extending backward and connected to a plated lead in a hole H.
  • connection terminals C2LN...CNLN of the left connection portions are formed at the other side of the left connection portions of each connection film and respectively connected to the first connection electrodes C2R1...CNR1 of the right connection portions through the wires Cu extending under other connection terminals C2L1...CNL(N-l) , as shown in FIG. 8.
  • first to (N-l)th connection terminals C2L1...C2L(N-1 ) respectively provided at one side of the left connection portions C1L...CNL of the connection films C2...CN are connected one after another to each of the second to Nth connection terminals C2L2...C2LN through inner conductive wires disposed at said one side.
  • the Nth connection terminals C2LN...CNLN of the left connection portions are formed at the other side of the left connection portions and respectively connected to the first connection electrodes C2R1...CNR1 of the right connection portions through inner conductive wires.
  • connection terminals F1R1...F1RN, ...FNR1...FNRN of the right connection portion FIR...FNR and the connection terminals F1L1...F1LN, ...FNL1...FNLN of the left connection portions FIL... FNL of the deflection films F1...FN may respectively be separated to make a number capable of preventing the deflection films from being deformed when they are bent to have desired shapes.
  • connection terminals C1R1...C1RN, ...CNR1...C1RN of the right connection portions C1R...CNR and the connection terminals C1L1...ClL(N-l) , ...CNL1...CNLN of the left connection portion CIL...CNL of the connection films C1...CN are formed into groups with being spaced apart from the connection terminals of the deflection films.
  • the first connection terminals C2L1...CNL1 of the right connection portions are preferably formed on one side of the two-sided connection films and connected to the Nth connection terminals C2LN...CNLN of the left connection portions through the inner wires Cu formed on the other side of the two-sided connection films by plated lead layer in the hole.
  • connection terminals C2LN...CNLN of the left connection portions formed on the other side of the two-sided connection films may extend over other connection terminals C2L1...CNL(N-l) along lower wires Cu while upper wires formed on the upper surfaces above the lower wires are connected to the lower wires by the plated lead layer in the hole, so that they may be connected to the first connection terminals C2R1...CNR1 of the right connection portions formed on the upper surfaces .
  • the first connection film Cl may also have a two-sided construction in which wires are arranged on both sides thereof.
  • a film-type saddle deflection member according to the present invention is provided by attaching and connecting the deflection films to and with the connection films, as described above.
  • the predetermined flatted deflection films can be manufactured by the same method as the conventional method for manufacturing flexible printed circuit films, which includes the steps of designing patterns of each wire, making mask films or art work, laminating thin films of copper on a base, applying photoresists, developing negative films, and etching the thin films of copper.
  • thermosetting resin layers may be formed in every gaps between the deflection portions of the flatted films while the films are laminated, so that the flatted films can be in a pre- attached state which is preferable in loading the films for forming, and locating and maintaining the shape of the films after forming.
  • the left and the right deflection portions of the deflection film are incorporated with each other at the connection portion side of the deflection portions through a shape-connection portion FC without wires .
  • the shape-connection portion further facilitates locating the films in loading and unloading them, and as well holds the deflection portions in forming the films and maintains their shape after forming.
  • a funnel end turn portion of deflection films having a neck end turn portion formed integrally therewith can be easily formed by connecting or attaching the connection portions of the connection film having the same length to each other.
  • the present invention enables a deflection member to achieve a desired ampere turns only by the deflection films and the connection films without a separate connection member and facilitates wiring in the deflection member. While the present invention has been particularly shown and described with reference to a preferred embodiment thereof, it will be understood by those skilled in the art that various changes in form and detail may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims.

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  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

The film-type saddle horizontal deflection member has a plurality of deflection films (F1(FN), Fig. 3) and a plurality of connection films (C1(CN), Fig. 3). In the deflection member, the second to the Nth connection films respectively has a two-sided construction in which wires are arranged on both sides thereof. In the connection films (C1(CN), Fig. 3), the first to the (N-1)th connection terminals (C1L1...C1L(N-1)) are formed at one side of the left connection portions (C1L, Fig. 3) and connected to the second to Nth connection terminals (C1R2...C1RN) of the right connection portions (C1R, Fig. 3) through two-sided wires extending backward and connected to each other through plated lead in a hole, the Nth connection terminals of the left connection portions being formed at other side of the left connection portions and respectively connected to the first connection electrodes of the right connection portions through the wires extending under other connection terminals. The connection films connected with the deflection films give the desired multilayer coil for the deflection in a cathode ray tube.

Description

TITLE OF THE INVENTION
FILM-TYPE SADDLE DEFLECΗON MEMBER FOR A CRT USING A TWO-SIDED CONNECΗON FILM
BACKGROUND OF THE INVENTION The present invention generally relates to a film- type saddle deflection member of a cathode ray tube. More particularly, the present invention relates to a film-type saddle deflection member of a cathode ray tube using two- sided connection films which facilitate wiring of a desired circuit. The film-type saddle deflection member of the present invention comprises a plurality of deflection films such as flexible printed circuit substrates containing a plurality of wires, and a plurality of connection films for forming a funnel end turn portion by connecting the deflection films in such a manner that the wires of the deflection films may form a predetermined circuit.
FIG. 1 shows a color-picture cathode ray tube 10 including a panel 12 having a face plate 18, a phosphor screen 20 formed on the back of the face plate 18, a neck 14 containing an electron gun 11 which produces electron beams 19a and 19b and emits them towards the phosphor screen 20, a funnel 13 for connecting the neck 14 to the panel 12, and a deflection yoke assembly 17 mounted on a connection portion at which the neck 14 is connected to the funnel 13.
The funnel 13 has an internal conductive layer (not shown) contacting an anode terminal 15. A shadow mask 16, which has a plurality of apertures or slots 16a arranged in a predetermined pattern, is spaced at a predetermined distance apart from the screen 20 and is detachably installed in the panel 12.
The deflection yoke assembly 17 generally has a pair of film-type horizontal deflection members and a pair of film-type vertical deflections members formed into predetermined shapes by heat of high temperature, together with a plurality of laminated films such as flexible printed circuit substrates. As electric current is applied thereto, the horizontal deflection members produce a horizontal deflection magnetic-field for horizontally deflecting the electron beams 19a and 19b. In addition, the vertical deflection members also produce a vertical deflection magnetic-field for vertically deflecting the electron beams 19a and 19b as a current is applied to the vertical deflection members.
The deflection magnetic-field is preferably varied by a proper means in such a manner that the electron beams 19a and 19b can be scanned over all the phosphor screen 20, thereby providing two-dimensional images having an optimum deflection sensitivity on the cathode ray tube 12. In addition, such deflection of the magnetic field permits the horizontal deflection member to produce a pincushion magnetic field, and permits the vertical deflection member to produce a barrel magnetic field so that the three kinds of electron beams of an in-line type electron gun is easily converged.
FIG. 2 shows European Patent Publication No. E.P. 0 1169 613 Al issued to Philips Electronic and Associated Ind. Ltd. et al., which discloses a film-type saddle horizontal deflection member 30 mounted as mentioned above. As shown in FIG. 2, the saddle horizontal deflection member 30 comprises a deflection film 31 and a connection film 35 electrically connected to the deflection film 31 so as to form a predetermined electric circuit. The center portion of the deflection film 31 is severed by a predetermined width, and a neck end turn portion 34 connects the severed two parts of the deflection film 31 to each other. A plurality of conductive wires disposed in both severed sides of the deflection film 31 respectively form deflection portions 32 and 33. Connection portions 32' and 33', at which each conductive wire is exposed, are formed at both ends of deflection portions 32 and 33. The connection film 35 forming a U-shaped bridging member of the deflection film 31 is provided with connection portions 35' and 35', at the ends of which the plural conductive wires are exposed, thereby winding the connection portions 32' and 33' of the deflection film 31 such that they form a predetermined circuit. The construction of the above described film-type saddle deflection member does not provide stability for the shape of the deflection film 31 and make it easy to connect or attach the deflection film 31 and the connection film 35. In addition, it requires a separate electric connection for providing a predetermined circuit between the films adjacent to one on another.
SUMMARY OF THE INVENTION The present invention has been made to overcome the above described problem, and accordingly, it is an object of the present invention to provide a film-type saddle deflection member of a cathode ray tube using two-sided connection films, in which deflection films and connection films can be easily connected to each other, and a predetermined circuit can be formed without a separate electric connection even between vertically adjacent films .
In order to attain the above object, there is provided a film-type saddle deflection member of a cathode ray tube using two-sided connection films, the film-type saddle deflection member comprising: a first to Nth deflection films provided in a neck funnel portion of the cathode ray tube, each of the first to Nth deflection films containing a plurality of conductive wires for producing a desired deflection magnetic field when electric current flows through the conductive wires, each of the first to Nth deflection films including a pair of deflection portions, a neck end turn, and a pair of connection portions; and a first to Nth connection films, each of the first to Nth connection films including a pair of right and left connection portions, each of the first to Nth connection films providing a funnel end turn portion interconnecting the pair of connection portions with each other through the pair of connection portions, so as to make the conductive wires in the deflection films form a predetermined circuit, wherein the first connection film of the connection films has a first entrance terminal interconnected to a first connection terminal disposed in a right connection portion of the first connection film, and a first to (N- l)th connection terminals of the left connection portion are respectively connected to a second to Nth connection terminals of the right connection portion one after another in order, last connection terminals of left connection portions of the first to (N-l)th deflection films respectively being connected to an adjacent lower one of Nth connection terminals of left connection portions of the second to Nth connection films, each of the Nth connection terminals of the left connection portions of the connection films being connected to each of first connection terminals of right connection portions of the second to Nth connection films one after another, last connection terminal of the left connection portion of the lowermost deflection film forming a second entrance terminal, so that all wires of the deflection films are connected in series from first to last, the second to the Nth connection films respectively having a two-sided construction in which wires are arranged on both sides thereof, the second to the Nth connection films having the first to the (N-l)th connection terminals formed at one side of the left connection portions and connected to the first to Nth connection terminals of the right connection portions through two-sided wires extending backward and connected to a plated lead in a hole, the Nth connection terminals of the left connection portions being formed at other side of the left connection portions and respectively connected to the first connection electrodes of the right connection portions through the wires extending under other connection terminals.
In the film-type saddle deflection member, the last connection terminals of the left connection portions of the deflection films may be separated from each other, so as to facilitate connection between two layers.
Further, the connection terminals of the right connection portion and the connection terminals of the left connection portions of the deflection films may be respectively separated to make a number capable of preventing the deflection films from being deformed when they are bent to have desired shapes, and the connection terminals of the right connection portions and the connection terminals of the left connection portions of the connection films may be formed corresponding to and spaced apart from the connection terminals of the deflection films. BRIEF DESCRIPTION OF THE ATTACHED DRAWINGS
FIG. 1 is a longitudinally and partially sectional plan view for schematically illustrating the structure of a color-picture cathode ray tube; FIG. 2 is a perspective view for illustrating the construction of a conventional film-type saddle deflection member of a color-picture cathode ray tube;
FIG. 3 is a perspective view showing a deflection film and a connection film, shown in a separated state from each other, which constitute a film-type saddle horizontal deflection member according to the present invention;
FIG. 4 is a detailed view for showing the attachment between the deflection film and the connection film in the top layer of the film-type saddle deflection member in
FIG. 3, and their connection to the second connection film;
FIG. 5 is a sectional view, taken along line A-A in FIG. 4, illustrating the deflection member of the present invention having four films;
FIG. 6 is a sectional view, taken along line B-B in FIG. 4, illustrating the deflection member of the present invention having four films;
FIGs. 7 and 8 are sectional views of a two-sided connection film according to the first embodiment of the present invention, for showing the wiring respectively in the same layer and the adjacent two layers of the film; and FIGs. 9 and 10 are sectional views of a two-sided connection film according to the second embodiment of the present invention, for showing the wiring respectively in the same layer and the adjacent two layers of the film.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Hereinafter, the preferred embodiment of the present invention will be described with reference to the attached drawings .
FIG. 3 is a perspective view showing a deflection film and a connection film, shown in a separated state from each other, which constitute a film-type saddle horizontal deflection member according to the present invention. The film-type saddle horizontal deflection member comprises a plurality of deflection films F1...FN and a plurality of connection films C1...CN. The deflection films F1...FN contains a plurality of conductive wires for producing a desired deflection magnetic field when electric current flows through the conductive wires. The deflection films F1...FN further includes a pair of deflection portions FR and FL, a neck end turn FE, and a pair of connection portions FIR and F1L. The connection films C1...CN provide a funnel end turn portion interconnecting the pair of connection portions FIR and F1L with each other through a pair of connection portions C1...CN, so as to make the conductive wires in the deflection films F1...FN form a predetermined circuit. Referring again to FIG. 3, the pair of the connection portions FIR and FIL are respectively divided into at least two sections and bent at line B from the deflection portions FR and FL in the same plane as that of the connection film Cl(CN), so as to facilitate their connection with the connection portions C1R and C1L of the connection film C1...CN. In addition, connection terminals (F1R1...F1RN, ... FNR1...FNRN) , ( F1L1... F 1LN , ...FNL1...FNLN) , ( C1R1... C1RN, ... CNR1... CNRN ) , (C1L1...ClL(N-l), C1I, ...CNL1... CNLN) provided at each connection portion are exposed to the exterior. Therefore, a predetermined circuit can be formed by connecting the connection terminals.
The film-type saddle deflection member constructed as mentioned above can be easily bent to have a desired shape because the connection portions FIR...FNL of the deflection film F1...FN are separated from each other. Further, when the connection films C1...CN are adjusted relative to the deflection films F1...FN, the connection portions F1...FN of the deflection films F1...FN can be easily located at the same plane as that of the connection films C1...CN due to their separation to each other, thereby facilitating the attachment for electric connection between them. FIG. 4 shows in detail the attachment between the deflection film Fl and the connection film Cl in the top layer of the above-mentioned film-type saddle deflection member, and their connection to the second connection film C2. FIGs. 5 and 6 illustrate sectional views, taken along lines A-A and B-B in FIG. 4, for illustrating the deflection member of the present invention having four films . Referring to FIGs. 4 to 6, an entrance terminal C1I, which is provided at the top or uppermost connection film Cl of the connection films C1...CN, is interconnected to the first connection terminal C1R1 of the right connection portion CIL through an inner conductive wire in the top connection film Cl. Moreover, the first to the (N-l)th connection terminals C1L1...ClL(N-l) of the left connection portion CIL are respectively connected through the inner conductive wires to the second to the Nth connection terminals C1R2...C1RN of the right connection portion C1R one after another in order.
In the top connection film Cl having the above mentioned construction, the first to the Nth connection terminals F1R1...F1RN of the right connection portion FIR of the deflection film Fl are electrically connected to the first to the Nth connection terminals C1R1...C1RN of the right connection portion C1R, respectively. In the meantime, the first to the (N-l)th connection terminals FILL ..FlL(N-l) of the left connection portion FIL of the deflection film Fl are electrically connected to the first to the (N-l)th connection terminals C1L1...C1L(N-1 ) of the left connection portion CIL, respectively. Thereafter, the Nth connection terminal F1LN of the left connection portion FNL of the top deflection film Fl is connected to the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2, and the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2 is connected through an inner conductive wire to the first connection terminal C2R1 of the right connection portion C2R of the second connection film C2. Connections in like manner as above are established between the connection portions C2R...CNL of the second to the Nth connection films C1...CN and the second to the Nth deflection films F2...FN, thereby forming a predetermined circuit. Meanwhile, the last or the Nth connection terminal FNLN of the left connection portion FNL of the last deflection film FN functions as another entrance terminal, that is, a terminal for providing a connection to the exterior, along with the entrance terminal C1I of the first connection film Cl.
In other words, the last connection terminals F1LN...F(N-1)LN of the left connection portions FIL...F(N- 1)L of the first to (N-l)th deflection films Fl.-.F(N-l) are respectively connected to the adjacent lower one of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN. Each of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN is connected through the inner conductive wires to each of the first connection terminals C2R1...CNR1 of the right connection portions C2R...CNR of the second to the Nth connection films C1...CN one after another. Thereafter, the last connection terminal FNLN of the left connection portion FNL of the lowermost deflection film FN forms an entrance terminal.
In the above manner, the connection terminals F1R1...F1RN, ...FNR1...FNRN of the right connection portion F1R...FNR and the connection terminals F1L1...F1LN, ...FNL1...FNLN of the left connection portions FIL...FNL of the deflection films F1...FN are electrically connected to the connection terminals C1R1...C1RN, ...CNR1... CNRN of the right connection portions C1R...CNR and the connection terminals C1L1...ClL(N-l), ...CNL1...CNLN of the left connection portion C1L...CNL of the connection films C1...CN, so that all the wires in the deflection portions of the deflection films F1...FN are connected in series from the top to the bottom.
Since the last connection terminals F1LN...FNLN of the left connection portion FIL... FNL of the deflection films F1...FN are separated from each other, they can be easily connected to the adjacent lower one of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN.
The inner conductive wire for connecting the Nth connection terminal C2LN of the left connection portion C2L of the second connection film C2 to the first connection terminal C2L1 of the right connection portion C2L of the second connection film C2 is connected to the first connection terminal C2L1 of the right connection portion across the front side of the first to the (N-l)st connection terminals of the left connection portion in FIG. 4. Likewise, other conductive wires extend from the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the second to the Nth connection films C2...CN across the front side of the first to the (N-l)th connection terminals of the left connection portions, and then are connected to the first connection terminals of the right connection portion. As described above, the first connection terminals of the right connection portions and the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the second to the Nth connection films C2...CN are connected to each other, so that the length of the left connection portions of the second to the Nth connection films is formed longer than that of the right connection portions, thereby preventing the length of the deflection film from changing.
Instead of changing the length of the connection portions C1R...CNL of the connection films C1...CN as described above, the present invention may employ a two- sided construction in which wires are arranged on both sides of each of the second to the Nth connection films C2...CN as shown in FIGs. 7 through 10. FIGs. 7 and 8 show sectional views of a two-sided connection film according to the first embodiment of the present invention, while FIGs. 9 and 10 to the second embodiment . Referring to FIG. 7, the second to the Nth connection films C2...CN respectively have a two-sided structure in which wires are arranged on both sides thereof, while each connection terminal of both wires is formed on any one side only at the connection portion. That is, the first to the (N-l)th connection terminals C2L1...CNL(N-l) of the left connection portion and the first to the Nth connection terminals C2R2...CNRN of the right connection portions respectively are formed at one side only of the left connection portion and of the right connection portions, and are connected each other through the two- sided wires Cu and Cu extending backward and connected to a plated lead in a hole H. Further, the Nth connection terminals C2LN...CNLN of the left connection portions are formed at the other side of the left connection portions of each connection film and respectively connected to the first connection electrodes C2R1...CNR1 of the right connection portions through the wires Cu extending under other connection terminals C2L1...CNL(N-l) , as shown in FIG. 8.
Referring to FIG. 9 for showing the second embodiment of the present invention, first to (N-l)th connection terminals C2L1...C2L(N-1 ) respectively provided at one side of the left connection portions C1L...CNL of the connection films C2...CN are connected one after another to each of the second to Nth connection terminals C2L2...C2LN through inner conductive wires disposed at said one side. Further, the Nth connection terminals C2LN...CNLN of the left connection portions are formed at the other side of the left connection portions and respectively connected to the first connection electrodes C2R1...CNR1 of the right connection portions through inner conductive wires. By the connections as above, the inner conductive wires can be freely arranged, thereby permitting the lengths of both connection portions of the connection film to be the same.
The connection terminals F1R1...F1RN, ...FNR1...FNRN of the right connection portion FIR...FNR and the connection terminals F1L1...F1LN, ...FNL1...FNLN of the left connection portions FIL... FNL of the deflection films F1...FN may respectively be separated to make a number capable of preventing the deflection films from being deformed when they are bent to have desired shapes. Correspondingly, the connection terminals C1R1...C1RN, ...CNR1...C1RN of the right connection portions C1R...CNR and the connection terminals C1L1...ClL(N-l) , ...CNL1...CNLN of the left connection portion CIL...CNL of the connection films C1...CN are formed into groups with being spaced apart from the connection terminals of the deflection films.
In addition, though they may be formed on the other side of the two-sided connection films, the first connection terminals C2L1...CNL1 of the right connection portions, in order to ensure more easy connection between the deflection films, are preferably formed on one side of the two-sided connection films and connected to the Nth connection terminals C2LN...CNLN of the left connection portions through the inner wires Cu formed on the other side of the two-sided connection films by plated lead layer in the hole. Otherwise, the Nth connection terminals C2LN...CNLN of the left connection portions formed on the other side of the two-sided connection films may extend over other connection terminals C2L1...CNL(N-l) along lower wires Cu while upper wires formed on the upper surfaces above the lower wires are connected to the lower wires by the plated lead layer in the hole, so that they may be connected to the first connection terminals C2R1...CNR1 of the right connection portions formed on the upper surfaces .
Meanwhile, the first connection film Cl may also have a two-sided construction in which wires are arranged on both sides thereof.
In manufacturing the deflection films, predetermined flatted deflection films are laminated and then formed under high temperature to have a predetermined shape while the connection portions are bent. Thereafter, the films are cooled to yield the above mentioned deflection films with a predetermined shape. Then, a film-type saddle deflection member according to the present invention is provided by attaching and connecting the deflection films to and with the connection films, as described above.
The predetermined flatted deflection films can be manufactured by the same method as the conventional method for manufacturing flexible printed circuit films, which includes the steps of designing patterns of each wire, making mask films or art work, laminating thin films of copper on a base, applying photoresists, developing negative films, and etching the thin films of copper. In the step of laminating, thermosetting resin layers may be formed in every gaps between the deflection portions of the flatted films while the films are laminated, so that the flatted films can be in a pre- attached state which is preferable in loading the films for forming, and locating and maintaining the shape of the films after forming.
In the meantime, referring again to FIG. 3, the left and the right deflection portions of the deflection film are incorporated with each other at the connection portion side of the deflection portions through a shape-connection portion FC without wires . The shape-connection portion further facilitates locating the films in loading and unloading them, and as well holds the deflection portions in forming the films and maintains their shape after forming.
According to the construction and the function of the film-type saddle deflection member of a cathode ray tube based on the above described embodiments of the present invention, a funnel end turn portion of deflection films having a neck end turn portion formed integrally therewith can be easily formed by connecting or attaching the connection portions of the connection film having the same length to each other. Further, the present invention enables a deflection member to achieve a desired ampere turns only by the deflection films and the connection films without a separate connection member and facilitates wiring in the deflection member. While the present invention has been particularly shown and described with reference to a preferred embodiment thereof, it will be understood by those skilled in the art that various changes in form and detail may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

What is claimed is
1. A film-type saddle deflection member of a cathode ray tube using two-sided connection films, the film-type saddle deflection member comprising: a first to Nth deflection films F1...FN provided in a neck funnel portion of the cathode ray tube, each of the first to Nth deflection films F1...FN containing a plurality of conductive wires for producing a desired deflection magnetic field when electric current flows through the conductive wires, each of the first to Nth deflection films F1...FN including a pair of deflection portions FR and FL, a neck end turn FE, and a pair of connection portions FIR and FIL; and a first to Nth connection films C1...CN, each of the first to Nth connection films C1...CN including a pair of right and left connection portions C1R and CIL, each of the first to Nth connection films C1...CN providing a funnel end turn portion interconnecting the pair of connection portions FIR and FIL with each other through the pair of connection portions C1R and CIL, so as to make the conductive wires in the deflection films F1...FN form a predetermined circuit, wherein the first connection film Cl of the connection films C1...CN has a first entrance terminal C1I interconnected to a first connection terminal C1R1 disposed in a right connection portion C1R1 of the first connection film Cl, and a first to (N-l)th connection terminals C1L1...ClL(N-l) of the left connection portion CIL are respectively connected to a second to Nth connection terminals C1R2...C1RN of the right connection portion C1R one after another in order, last connection terminals F1LN...F(N-1)LN of left connection portions FIL...F(N-1)L of the first to (N-l)th deflection films F1...F(N-1) respectively being connected to an adjacent lower one of Nth connection terminals C2LN...CNLN of left connection portions C2L...CNL of the second to Nth connection films C2...CN, each of the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL of the connection films C2...CN being connected to each of first connection terminals C2R1...CNR1 of right connection portions C2R...CNR of the second to Nth connection films C2...CN one after another, last connection terminal FNLN of the left connection portion FNL of the lowermost deflection film FN forming a second entrance terminal, so that all wires of the deflection films F1...FN are connected in series from first to last, the second to the Nth connection films C2...CN respectively having a two-sided construction in which connection wires are arranged on both sides thereof, the second to the Nth connection films C2...CN having first to (N-l)th connection terminals C2L1...CNL(N-l) formed at one side of the left connection portions C2L...CNL and connected to the second to Nth connection terminals C2R2...CNRN of the right connection portions C2R...C2L, the Nth connection terminals C2LN...CNLN of the left connection portions C2L...CNL being formed at other side of the left connection portions and respectively connected to the first connection electrodes C2R1...CNR1 of the right connection portions through the connection wires Cu extending under other connection terminals C2L1...CNL(N- 1).
2. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the first to (N-l)th connection terminals C2L1...CNL(N-l) are connected to the second to Nth connection terminals C2R2...CNRN of the right connection portions C2R...C2L through two-sided connection wires Cu and Cu extending backward and connected to each other through a lead plated in a hole H.
3. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the first to (N-l)th connection terminals C2L1...CNL(N-l) are connected to the second to Nth connection terminals C2R2...CNRN of the right connection portions C2R...C2L through inner conductive wires, the second to Nth connection terminals C2R2...CNRN of the right connection portions C2R...C2L being formed at said one side of the left connection portions.
4. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the last connection terminals F1LN...FNLN of the left connection portions FIL... FNL of the deflection films F1...FN are separated from each other .
5. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the connection terminals F1R1...F1RN, ...FNR1...FNRN of the right connection portion F1R...FNR and the connection terminals F1L1...F1LN, ...FNL1...FNLN of the left connection portions FIL... FNL of the deflection films F1...FN are respectively separated to make a number capable of preventing the deflection films from being deformed when they are bent to have desired shapes, and the connection terminals C1R1...C1RN, ...CNR1...C1RN of the right connection portions C1R...CNR and the connection terminals C1L1...ClL(N-l), ...CNL1...CNLN of the left connection portions C1L...CNL of the connection films C1...CN are formed corresponding to and spaced apart from the connection terminals of the deflection films.
6. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the first connection terminals C2L1...CNL1 of the right connection portions are formed on one side of the two-sided connection films and connected to the Nth connection terminals C2LN...CNLN of the left connection portions through the inner wires Cu formed on the other side of the two-sided connection films by a plated lead layer in a hole formed at the one side.
7. A film-type saddle deflection member of a cathode ray tube using two-sided connection films as claimed in claim 1, wherein the first connection film Cl has a two-sided construction in which wires are arranged on both sides thereof.
PCT/KR1996/000273 1996-10-25 1996-12-30 Film-type saddle deflection member for a crt using a two-sided connection film WO1998019325A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1996/48150 1996-10-25
KR1996/48149 1996-10-25
KR1019960048149A KR100227695B1 (en) 1996-10-25 1996-10-25 Film-type deflection material using double-faced connecting film
KR1019960048150A KR100227696B1 (en) 1996-10-25 1996-10-25 Film-type deflection material using double-faced connecting film

Publications (1)

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WO1998019325A1 true WO1998019325A1 (en) 1998-05-07

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD125784A1 (en) * 1976-05-24 1977-05-18
EP0169613A1 (en) * 1984-07-27 1986-01-29 Philips Electronics Uk Limited Saddle coils for electromagnetic deflection units

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD125784A1 (en) * 1976-05-24 1977-05-18
EP0169613A1 (en) * 1984-07-27 1986-01-29 Philips Electronics Uk Limited Saddle coils for electromagnetic deflection units

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