WO1997048118A1 - Two-sided film for a film-type deflection member used in a cathode ray tube - Google Patents

Two-sided film for a film-type deflection member used in a cathode ray tube Download PDF

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Publication number
WO1997048118A1
WO1997048118A1 PCT/KR1996/000268 KR9600268W WO9748118A1 WO 1997048118 A1 WO1997048118 A1 WO 1997048118A1 KR 9600268 W KR9600268 W KR 9600268W WO 9748118 A1 WO9748118 A1 WO 9748118A1
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WO
WIPO (PCT)
Prior art keywords
wires
deflection
film
section
pair
Prior art date
Application number
PCT/KR1996/000268
Other languages
French (fr)
Inventor
Baek Young Choi
Soo Ryong Byun
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
Application filed by Orion Electric Co., Ltd. filed Critical Orion Electric Co., Ltd.
Publication of WO1997048118A1 publication Critical patent/WO1997048118A1/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
    • 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
    • H01J29/768—Deflecting by magnetic fields only using 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

  • a film F 1 comprises a deflection portion TF and connection portions A and B.
  • the deflection portion TF has a plurality of wires therein which are arranged in a predetermined pattern.
  • the connection portions A 2 to A 6 and B,, to B 5 for electrically connecting the wires respectively extend from each of the wires and are preferably separated from each other.
  • Upper end portions of connection portions A 2 to A 6 and lower end portions of connection portions B 1 to B 5 are not coated but exposed, thereby respectively forming connection terminals.
  • the present invention also provides a deflection member, in which the two-sided films are stacked and formed at the deflection section, and a deflection apparatus having the deflection member mounted thereon.
  • FIG. 3 is a sectional view taken along line 3-3 of FIG. 3;
  • the bending sections BF and BF' of the film F 1 (F n ) are divided by a plurality of slits S and CS, and the wires E accommodated in the film F 1 (F n ) are also as uniformly divided as possible.
  • the wires accommodated in the film F.,(F n ) are exposed to the outside at both ends of film F.,(F n ), thereby forming connection terminals CE 1 ...,CE 41 , and CE' 0 ... ⁇ E' ⁇ j .
  • a lead pin of a separate connector C 2 (C, C.,) is respectively attached to the connection terminals by means of soldering, and a support member RP 2 (RP, RP 1 ) is attached to a rear side of the connection terminals, so that, as shown by a phantom line in FIG. 8, the film is easily inserted into the connector C 2 (C, C,,).
  • the exposed sides of the connection terminals CE V ..,CE 41 , and CE' 0 .. ,,CE' tt are respectively plated with a soldering layer Pb.
  • the film constructed as described above is manufactured by using a conventional flexible printed circuit (FPC) film manufacturing method.
  • FIG. 9 shows a deflection member F mounted on a predetermined position of the core 236.
  • a deflection apparatus 217 has the same construction as the deflection apparatus 17 shown in FIG. 3, except for a toroidal deflection member F and the core 236.

Abstract

Disclosed is a two-sided film (F1 to F4) for a film-type deflection member of a cathode ray tube, which can obtain an ampere turn for a predetermined magnetic-field pattern while reducing the number of films, connection terminals, wires, and slant portions in the wire. The two-sided film has a deflection section (TF) formed at upper and lower surfaces of a base thereof with plural pairs of wires arranged in a predetermined pattern, and a pair of connection sections (CF, CF') for electrically connecting the plural pairs of wires to an external power source. The deflection section (TF) produces a predetermined magnetic field pattern as a current is applied to the wires. Each of connection sections (CF, CF') is formed at both sides of the deflection section (TF) and extends by a predetermined length therefrom. The wires are branched into two strands at the deflection section (TF), and each pair of wires is connected to each other in a parallel pattern at the deflection section.

Description

TITLE OF THE INVENTION
TWO-SIDED FILM FOR A FILM TYPE DEFLECTION MEMBER USED IN
A CATHODE RAY TUBE
BACKGROUND OF THE INVENTION The present invention relates to a cathode ray tube, and more particularly to a two-sided film for a film-type deflection member of a cathode ray tube, which can facilitate the connection of the connection terminals while reducing as much as possible the number of the connection terminals at slant portions and connection portions of wires which has an influence upon a predetermined deflection magnetic-field pattern.
Referring to Fig. 1, a color picture tube 10 generally comprises 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 for producing electron beams 19a, 19b directed towards the phosphor screen 20, a funnel 13 for connecting the neck 14 and the panel 12, and a deflection yoke 17. The funnel 13 has an internal conductive layer (not shown) contacting an anode 15. A shadow mask 16 with a plurality of slots 16a formed in a desired arrangement is placed directly behind the screen 20 and detachably fixed to the panel 12. The deflection yoke 17 includes a horizontal deflection coil structure and a vertical deflection coil structure. The horizontal deflection coil structure and the vertical deflection coil structure respectively produce horizontal deflection magnetic field and vertical deflection magnetic field to respectively deflect the electron beams 19a, 19b horizontally and vertically, when horizontal and vertical deflection currents are applied thereto.
The change of the magnetic fields according to the change of currents applied to the deflection yoke make the electron beams 19a and 19b be properly varied to scan the entire phosphor screen 22 thus providing two dimensional images through the panel 12.
Conventionally, the horizontal deflection coil is usually wound in a saddle type, and the vertical deflection coil in a saddle type or a toroidal type. Referring to FIGs. 2 and 3, a deflection yoke 17 comprises a pair of toroidal-type vertical deflection coils 31, 32 and a pair of saddle-type horizontal deflection coils 33, 34 as shown in Figs. 2 and 3. The pair of saddle horizontal deflection coils 33 and 34 are oppositely arranged on the upper and the lower of the inside wall of a bobbin 35, and the pair of vertical deflection coils 31 and 32 wound oppositely around a core structure 36, 37 in a toroidal type. Although not shown, the vertical deflection coils may be fixed to the outer surface of the bobbin 31 while the core structure 36, 37 is mounted on the vertical deflection coils, when the vertical deflection coils are wound in a saddle-type.
The core structure includes an upper and a lower cores 36 and 37 separated from each other, which facilitate the winding of the coils therearound. That is, the vertical deflection coils 31 and 32 are firstly wound around the upper and the lower cores 36 and 37 separately from each other, and then the upper and the lower cores 36 and 37 are assembled together.
In the saddle horizontal deflection coils 33 and 34, the left coil portions 33b and 34b and the right coil portions 33a and 34a should be so wound as to make currents flow in opposite directions. Since the coils are symmetrically distributed at the upper and lower portions with respect to the X-Z plane, the saddle horizontal deflection coils are divided into upper and lower saddle horizontal deflection coils 33 and 34 and are respectively arranged at upper inner wall and lower inner wall of the bobbin 35 about a pair of projections 35a and 35b of the bobbin 35, in consideration of the fabrication of the coils onto the bobbin. That is, by arranging the upper saddle horizontal deflection coil 33 at the upper inner wall of the bobbin 35 in such a manner as shown in FIG. 2, the current can flow in the opposite directions through left and right coil portions 33a and 33b of the upper saddle horizontal deflection coil 33. Likewise, the current can flow in the opposite directions through left and right coil portions 34a and 34b of the lower saddle horizontal deflection coil 34. Accordingly, when the pair of the upper and the lower saddle horizontal deflection coils 33 and 34 are vertically assembled together, the current through the left coil portions 33a and 34a can flow in an opposite direction to that through the right coil portions 33b and 34b.
In order to make an improved film-type deflection yoke which can easily make a various magnetic-field patterns, which can be easily designed and precisely manufactured according to the design, which can remove a bad influence of the end turns, and which can be uniformly manufactured regardless of manufacturing conditions, various attempts and efforts have been tried. However, such attempts and efforts have revealed many problems in achieving the above aims, and especially in manufacturing a deflection member of a cathode ray tube by using a film, so the film-type deflection member has not yet commercially produced. In order to solve the above problems, the applicant of the present invention suggested a Korean patent application No. 96-10972, entitled "a film-type toroidal deflection member of a cathode ray tube and an apparatus using the same" as shown in FIG. 4. Referring to FIG. 4, a film F1 comprises a deflection portion TF and connection portions A and B. The deflection portion TF has a plurality of wires therein which are arranged in a predetermined pattern. The connection portions A2 to A6 and B,, to B5 for electrically connecting the wires respectively extend from each of the wires and are preferably separated from each other. Upper end portions of connection portions A2 to A6 and lower end portions of connection portions B1 to B5 are not coated but exposed, thereby respectively forming connection terminals. Each of the connection terminals A2 to A6 makes an electrical contact with a corresponding one of connection terminals Bn to B5 in a serial and circulative order when the wires are respectively wound around a core about the axes X and Y, so that all the wires can be connected to each other in series.
In addition, an exposed end of second connection portion B6 protruding downward from a left wire is connected in series through a separate connection member to an exposed end of the first connection end protruding upward from a right wire of the next film layer. In the meantime, in the uppermost and lowest film layers, the first and second connection ends are connected to a power source so as to receive a deflection current therefrom.
However, in the above patent application, since the plurality of wires are arranged so as to produce a magnetic-field pattern, and since the connection portions are provided at both sides of the wires, the film-type deflection member requires a large number of ampere turns in order to deflect the electron beams through a face plate of the cathode ray tube. Accordingly, the film-type deflection member requires both a plurality of connection portions and a plurality of films. For this reason, not only it is difficult to manufacture the films, but also the laminating and forming of the films to make the deflection member are complicated. Further, it is very difficult and complicated to connect the connection portions disposed in each film of the deflection member. On the contrary, when one wire is provided in the deflection member with several parallel patterns in order to reduce the number of wires, branch portions, at which the wires are branched into several patterns, should be slanted, and increase of the slant portion has a bad effect on the magnetic-field pattern for deflecting the electron beams.
SUMMARY OF THE INVENTION The present invention has been made to overcome the above described problems, and accordingly, it is an object of the present invention to provide a two-sided film for a film-type deflection member of a cathode ray tube, which can obtain sufficient ampere turns for forming a desired magnetic-field pattern while reducing the number of films, connection terminals, wires, and slant portions in the wire.
In order to attain the above object, the present invention provides a two-sided film for a film-type deflection member of a cathode ray tube comprising: a deflection section being formed at upper and lower surfaces of a base thereof with plural pairs of wires arranged in a predetermined pattern, the deflection section producing a predetermined magnetic field pattern as a current is applied to the wires; and a pair of connection sections for electrically connecting the plural pairs of wires to an external power source, each of connection sections being respectively formed at both sides of the deflection section and extending by a predetermined length therefrom, wherein, the wires are respectively branched into two strands at the deflection section, and each pair of wires is connected to each other in a parallel pattern at the deflection section.
The present invention also provides a deflection member, in which the two-sided films are stacked and formed at the deflection section, and a deflection apparatus having the deflection member mounted thereon.
In order to connect the wires in a parallel pattern, at least a pair of connecting holes for connecting upper wires to lower wires is formed at wire portions of the pair of connection sections. The connecting holes are formed therein with a conductive material, thereby reducing the number of the connection terminals and number of the slant portions of the wires arranged in the deflection section. In order to facilitate the connecting, heating and forming of the deflection section, each wire of the plural pairs of wires is formed at each connection section with a connection terminal which is exposed to an outside, and a bending section having at least one slit is formed between the connection section and the deflection section.
BRIEF DESCRIPTION OF THE ATTACHED DRAWINGS
FIG. 1 is a partial longitudinal section of a color- picture cathode ray tube for schematically illustrating the structure thereof;
FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 for illustrating a pair of conventional saddle horizontal deflection coils and a pair of conventional toroidal vertical deflection coils;
FIG. 3 is a sectional view taken along line 3-3 of FIG. 3;
FIG. 4 is a plan view of a film employed in a film- type deflection member;
FIG. 5 is a plan view of a flatted two-sided film used for manufacturing the film-type toroidal deflection member according to one embodiment of the present invention; FIG. 6 is a plan view of a flatted two-sided film used for manufacturing the film-type toroidal deflection member according to another embodiment of the present invention;
FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;
FIG. 8 is a sectional view taken along line 8-8 of FIG. 6;
FIG. 9 is a view similar to FIG. 3, for detailedly illustrating the sectional structure of a deflection member having the film-type toroidal deflection member having the two-sided film according to the present invention;
FIG. 10 is an enlarged sectional view of a connection part shown in FIG . 9 ;
FIG. 11A is a partial plan view for illustrating a pair of upper and lower wires of the two-sided film according to the present invention; and FIG. 11B is a sectional view of the two-sided film taken along the wires shown in FIG. 11.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Hereinafter, the preferred embodiments of the present invention will be described with reference to the attached drawings.
FIGs. 5 and 6 show a flatted two-sided film F^Fn) used for manufacturing the deflection member and having a wire arrangement according to the present invention. Though two types of films are illustrated, the present invention is not limited to those types of films. FIG. 9 shows a toroidal deflection member F which is fabricated by using the two-sided film F^Fn) and is mounted around a core 236.
Referring to FIG. 5, the two-sided film F,,(Fn) having at least one wire E arranged in a predetermined pattern comprises a deflection section TF which is installed at an inner predetermined position of the core 236 (see FIG. 9) in its flatted state and is forming a three-dimensional curvature shape so as to make a predetermined magnetic field pattern, a pair of bending sections BF and BF' which are respectively positioned at both ends of the deflection section TF and extend in the longitudinal direction therefrom and are surrounding both ends of the core 236, connection terminals CE^.-.^CE and CE'0, ...CE'A0 which extend in the longitudinal direction from both ends of the bending sections BF and BF' so as to electrically interconnect the films or wires, plug-type support members RP, RPV and RP2, and a pair of connection sections CF and CF' having connectors C, C,,, and C2 Each wire E,,...,^ is disposed in the deflection section TF in such a manner that it can produce a predetermined magnetic field when it makes a three-dimensional curvature shape therein.
The bending sections BF and BF' of the film F.,(Fn) have a plurality of slits S formed in the longitudinal direction. Each of the slits S is formed at both ends thereof with a hole for preventing the bending sections from rupturing. The connection terminals CEV...,CEA1 and
CE'0, ...CE'40 are formed at front ends of wires E, the upper end in FIG. 5, and are connected to the connector C.
Preferably, the connection terminals CE1,...,CEA1 and
CE'0, ...CE'A0 have a width larger than that of wires of the connection sections, and they are more widely spaced from each other as compared with the wires so as to facilitate the connection of the connectors.
The connection terminals CE1 and CE41, which are disposed at left-most and right-most sides in the connection terminals CEV...,CE41 respectively, are formed with jumper wires JE1 and JE2. The jumper wires JE1 and JE2 are accommodated in the connection terminals in the same manner as the wires and extend in the left and right directions therefrom, respectively. Some portions of the jumper wires JE,, and JE2 are externally exposed, and thereby forming external jumper terminals 0E1 and 0E2 at their ends. In addition, the wire connected to the connection terminals CE41 does not make connection with the bending sections, deflection section, and connection section CF' , but make connection only with the connection section CF. Namely, forty wires are provided in the deflection section. In the two-sided film F.,(Fn) constructed as mentioned above, according to the present invention, as shown in FIGs. 5, 11 and 12, the same number of wires UE-, to UE40 and LE1 to LE40 are arranged at upper and lower sides. Among those wires, two of the upper and lower wires are electrically connected to each other at the connection sections CF and CF' by means of at least one connection hole CH for connecting the upper and lower wires, so that the upper and lower wires are connected to each other in a parallel pattern at the deflection section TF. In addition, each of wires UEn to UE40 and LE1 to LE40 is branched out into two strands in a parallel pattern at the deflection section. Accordingly, even when one connection terminal is formed at each connection section CF and CF' with respect to two wires, four strands of ampere turns can be obtained at the deflection section TF. Since each of wires is branched into two strands at the deflection TF in order to obtain ampere turn, the wire has slant portions reduced as compared with that of the wire branched out into four strands. In addition, since the number of the connection terminals is reduced, not only it is easy to connect and fabricate the connection sections CF and CF', but also the reliable electrical connection is ensured.
An electric conductive material PL for electrically connecting the upper wires to the lower wires is provided in the connection hole CH. The electric conductive material PL can be made by a silver or a gold. FIG. 6 shows another embodiment of the present invention. This embodiment is different from the embodiment shown in FIG. 5, in that each slit CS formed at the center of slits S extends towards the connection sections CF and CF' thereby dividing the connection sections CF and CF', and the divided connection sections CF and CF' are spaced at a predetermined distance from each other. In this embodiment, connection terminals (_E« ... ,CEp-i , CE22• .. , CE/.1 , CE Q« .. ,CE 2n, and CE 2^ .. • ,v_E 4Q are formed on each end of the divided connection sections CF and CF', respectively. The connection terminals CE1 and CEA1, which are disposed at left-most and right-most sides in the connection terminals CElf ...,CE41 respectively, are formed with jumper wires JE1 and JE2. The jumper wires JE1 and JE2 are accommodated in the connection terminals in the same manner as the wires and extend in the left and right directions therefrom, respectively. Some portions of the jumper wires JE-, and JE2 are externally exposed, and thereby forming external jumper terminals 0E1 and OE2 at their ends. In addition, the wire connected to the connection terminals CE41 does not make connection with the bending sections, deflection section, and connection section CF', but make connection only with the connection section CF. Namely, forty wires are provided on one side of the deflection section.
In FIG. 6, since each center slit CS extends towards the connection sections CF and CF', a wire E21 positioned to the left of the center slit CS, or a center jumper wire Ej, is arranged across the center line of the film or the wire structure and located in the right side of the center slit CS at least at the deflection section TF. Accordingly, at the deflection section of one side of the film, twenty wires are symmetrically arranged about the center line in the same patterns.
According to this embodiment of the present invention, as shown in FIGs. 11 and 12, forty wires are respectively formed in the upper and lower sides of the film. In this case, the same number of wires UE1 to UE40 and LE,, to LE40 are arranged at the upper and lower sides, in the same manner as shown in FIG. 5. Among those wires, two of the upper and lower wires are electrically connected to each other at the connection sections CF and CF' by means of at least one connection hole CH for connecting the upper and lower wires, so that the upper and lower wires are connected to each other in a parallel pattern at the deflection section TF. In addition, each of wires UE1 to UEA0 and LE1 to LE40 is branched into two strands in a parallel pattern at the deflection section. In order to electrically connect the upper wires to the lower wires, the connection hole is plated with an electric conductive material PL made by a silver or a gold.
FIGs. 7 and 8 show cross-sectional and longitudinally-sectional views of the film shown in FIG. 6.
As mentioned above with reference to FIG. 5, the bending sections BF and BF' of the film F1(Fn) are divided by a plurality of slits S and CS, and the wires E accommodated in the film F1(Fn) are also as uniformly divided as possible. In FIG. 8, the wires accommodated in the film F.,(Fn) are exposed to the outside at both ends of film F.,(Fn), thereby forming connection terminals CE1...,CE41, and CE'0... ^E'^j. A lead pin of a separate connector C2(C, C.,) is respectively attached to the connection terminals by means of soldering, and a support member RP2(RP, RP1) is attached to a rear side of the connection terminals, so that, as shown by a phantom line in FIG. 8, the film is easily inserted into the connector C2(C, C,,). The exposed sides of the connection terminals CEV..,CE41, and CE'0.. ,,CE'tt are respectively plated with a soldering layer Pb. The film constructed as described above is manufactured by using a conventional flexible printed circuit (FPC) film manufacturing method. That is, several flatted films F.,(Fn) having the above structure are laminated one after another. In this state, the deflection sections TF are heated. While being heated, the deflection sections TF are formed in a predetermined three- dimensional curvature shape by a press working. Then, the deflection sections TF are cooled and solidified for a predetermined time while maintaining the three-dimensional curvature shape.
FIG. 9 shows a deflection member F mounted on a predetermined position of the core 236. In this embodiment, a deflection apparatus 217 has the same construction as the deflection apparatus 17 shown in FIG. 3, except for a toroidal deflection member F and the core 236.
Preferably, the deflection section TF of the toroidal deflection member F is attached to an inner predetermined position of the core 236, and both bending sections BF1 and BF2 thereof are surrounding both ends of the core 236, and as shown in FIG. 10, connection sections CF and CF' are connected to the core 236 from the outside of the core 236, thereby forming a predetermined deflection circuit. In the deflection circuit, for example, wires in the same film may be connected in series to each other, and further the wires in every film may be connected in series to each other. Meanwhile, wires are connected to each other in parallel at the branched portion of the upper and lower wires and at the deflection section. The first wire of a first film is connected to an external power source, and each wire is connected to next one at their opposite ends across each other. The last wire of the same film is connected to the first wire of the next film, and then the last wire of the last film is connected to the power source. As described above, according to the present invention, the wires are arranged in both sides of a film, and each wire is branched out into two strands connected in parallel to each other at the deflection section. Accordingly, even when one connection terminal is formed at each connection section with respect to two wires, four strands of ampere turns can be obtained at the deflection part. Furthermore, since each of wires is branched out into only two strands at the deflection part to form ampere turn, the wire has much reduced slant portions as compared with those of the wire branched into four strands. In addition, since the number of the connection terminal is reduced, not only it is easy to connect and fabricate the connection sections, but also the reliable electrical connection is ensured. 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, for example the present invention can be adopted to the saddle type.

Claims

What is claimed is:
1. A two-sided film for a film-type deflection member of a cathode ray tube, the two-sided film comprising: a deflection section formed at upper and lower surfaces of a base of the deflection section, the deflection section containing plural pairs of wires arranged in a predetermined pattern, the deflection section producing a predetermined magnetic field pattern as a current is applied to the wires; and a pair of connection sections for electrically connecting the plural pairs of wires to an external power source, each of connection sections being respectively formed at both sides of the deflection section and extending by a predetermined length therefrom, wherein the wires are respectively branched out into two strands at the deflection section, and each pair of the wires are connected in parallel to each other pair at the deflection section.
2. A two-sided film for a film-type deflection member of a cathode ray tube as claimed in claim 1, further comprising at least a pair of connecting holes for connecting upper wires to lower wires, the pair of connecting holes being formed at wire portions of the pair of connection sections, the connecting holes having a conductive material therein so as to connect the upper wires to the lower wires in a parallel pattern, the conductive material being formed between the upper and lower wires .
3. A two-sided film for a film-type deflection member of a cathode ray tube as claimed in claim 2, wherein in each connection section, each wire of the plural pairs of wires is formed with a connection terminal which is exposed to an outside.
4. A two-sided film for a film-type deflection member of a cathode ray tube as claimed in claim 1 or claim 2, wherein a bending section having at least one slit is formed between the connection section and the deflection section.
5. A film-type deflection member for a cathode ray tube, the film-type deflection member comprising a first and a second film-type deflection members separated from each other, the film-type deflection member being formed by laminating a plurality of two-sided films, the two-sided film comprising: a deflection section formed at upper and lower surfaces of a base of the deflection section, the deflection section containing plural pairs of wires arranged in a predetermined pattern, the deflection section producing a predetermined magnetic field pattern as a current is applied to the wires; and a pair of connection sections for electrically connecting the plural pairs of wires to an external power source, each of connection sections being respectively formed at both sides of the deflection section and extending by a predetermined length therefrom, wherein the wires are respectively branched out into two strands at the deflection section, and each pair of the wires are connected in parallel to each other pair at the deflection section.
6. A film-type deflection member for a cathode ray tube as claimed in claim 5, further comprising at least a pair of connecting holes for connecting upper wires to lower wires, the pair of connecting holes being formed at wire portions of the pair of connection sections, the connecting holes having a conductive material therein so as to connect the upper wires to the lower wires in a parallel pattern, the conductive material being formed between the upper and lower wires.
7. A film-type deflection member for a cathode ray tube as claimed in claim 6, wherein, in each connection section, said each wire of the plural pairs of wires is formed with a connection terminal which is exposed to exterior.
8. A film-type deflection member for a cathode ray tube as claimed in claim 5 or claim 6, further comprising a bending section having at least one slit formed between the connection section and the deflection section.
9. A deflection apparatus for a cathode ray tube, the deflection apparatus having a film-type deflection member, the film-type deflection member being divided into first and second film-type deflection members, the film-type deflection member being formed by stacking a plurality of two-sided films, the two-sided film comprising a deflection section formed at upper and lower surfaces of a base thereof with plural pairs of wires arranged in a predetermined pattern, and a pair of connection sections for electrically connecting the plural pairs of wires to an external power source, the deflection section producing a predetermined magnetic field pattern as a current is applied to the wires, each of connection sections being respectively formed at both sides of the deflection section and extending by a predetermined length therefrom, wherein, the wires are respectively branched into two strands at the deflection section, each pair of wires is connected to each other in a parallel pattern at the deflection section, the film-type deflection member is connected to the connection section and is mounted on the deflection apparatus in a saddle type or in a toroidal type for a vertical deflection or for a horizontal deflection.
PCT/KR1996/000268 1996-06-12 1996-12-30 Two-sided film for a film-type deflection member used in a cathode ray tube WO1997048118A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1996/21077 1996-06-12
KR1019960021077A KR980005227A (en) 1996-06-12 1996-06-12 Double side film for film type deflection member of cathode ray tube

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KR100839416B1 (en) * 2002-01-15 2008-06-19 삼성에스디아이 주식회사 Deflection apparatus for cathode ray tube having section winding type deflection coils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157805A (en) * 1965-07-30 1969-07-09 Emi Ltd Improvements in or relating to Circuit Elements especially for use as Scanning Coils
EP0169613A1 (en) * 1984-07-27 1986-01-29 Philips Electronics Uk Limited Saddle coils for electromagnetic deflection units
US4815990A (en) * 1987-04-10 1989-03-28 Rogers Corporation Flexible circuit having termination features and method of making the same
US5126707A (en) * 1989-12-25 1992-06-30 Takeshi Ikeda Laminated lc element and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157805A (en) * 1965-07-30 1969-07-09 Emi Ltd Improvements in or relating to Circuit Elements especially for use as Scanning Coils
EP0169613A1 (en) * 1984-07-27 1986-01-29 Philips Electronics Uk Limited Saddle coils for electromagnetic deflection units
US4815990A (en) * 1987-04-10 1989-03-28 Rogers Corporation Flexible circuit having termination features and method of making the same
US5126707A (en) * 1989-12-25 1992-06-30 Takeshi Ikeda Laminated lc element and method for manufacturing the same

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