CN1136722C - Display apparatus and its screening method, Computer game using display device and its screen method - Google Patents
Display apparatus and its screening method, Computer game using display device and its screen method Download PDFInfo
- Publication number
- CN1136722C CN1136722C CNB961185759A CN96118575A CN1136722C CN 1136722 C CN1136722 C CN 1136722C CN B961185759 A CNB961185759 A CN B961185759A CN 96118575 A CN96118575 A CN 96118575A CN 1136722 C CN1136722 C CN 1136722C
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- CN
- China
- Prior art keywords
- display unit
- barricade
- ray tube
- cathode ray
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Pinball Game Machines (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
To restrict influence owing to mutual polarizing magnetic fields even when the back surfaces of CRT are adjacently arranged by arranging a shield plate in the rear part of a CRT neck so as to permit the shield direction to correspond to the direction of a longitudinal polarizing magnetic field which comes from a polarizing york. The shield plate 21 is arranged in the back surface part 23b at the rear side of the neck(cathode electrode) of CRT 22 being a part influenced by leakage longitudinal polarizing fluxes. The shield plate 21 is formed to be a size covering only the back surface 23b of a cabinet 23. A directional electromagnetic steel band having a high shielding effect in a specified direction(the direction of an arrow x) is used as its material. Then, the shield plate 21 is arranged so as to permit the shield direction (x) to correspond to the direction of the longitudinal polarizing magnetic field which comes from the polarizing york.
Description
Technical field
The present invention relates to the screen method of display unit, display unit, the game machine that adopts display unit and the screen method of game machine, say so in more detail and can suppress of the influence of the magnetic deflection field of each display unit when being provided with other image of display device when the back side of many display unit is close.
Background technology
Most of game machines, so-called pinball game are provided with compact display apparatus in the central authorities of game machine, and the situation of carrying out according to recreation on this display unit shows various images, are intended to further improve recreational.
The display unit of using on this game machine, great majority adopt LCD panel, are tending towards recently adopting at image quality and favourable in price cathode ray tube (calling CRT in the following text), although its size and weight are bigger.
In recreation hall, so-called billiard room, game machine often is that the back side with 2 game machines is oppositely arranged.
In this set method, display unit as 2 relative game machines of the back side all is the CRT formula, then because of the distinctive form of protruding backward of CRT formula display unit, when the back side of 2 CRT near to several centimetres to the tens centimetres left and right sides time, exist the problem that the display frame of a CRT wherein will be fluctuateed because of the influence of the magnetic deflection field of another CRT.
Summary of the invention
The present invention In view of the foregoing develops, and provides a kind of screen method that also can suppress the game machine of the display unit of mutual magnetic deflection field influence, the screen method of display unit, the game machine that adopts display unit and employing display unit under the situation of the back side of 2 CRT near setting even its objective is.
With the relevant display unit of the 1st invention of the present invention, the scanning beam that has CRT22 and make this CRT22 in display unit 2 is at least to the deflecting coil 222 of vertical direction deflection, this display unit is characterised in that: will be configured in the back part 23b of the neck of above-mentioned CRT22 at the barricade 21 that specific direction has a strong shield effectiveness, and make the shield direction x of this barricade 21 consistent with the direction of the vertical deflection magnetic field H that is produced by above-mentioned deflecting coil 222.
With the relevant display unit of the 2nd invention of the present invention, it is the display unit of under the state that 2 display unit 2 are provided with back-to-back, using 2, this display unit is characterised in that: will be configured on the above-mentioned display unit 2 back portion 23b separately at 21 of barricades that have strong shield effectiveness on the specific x direction, and make the shield direction x of this barricade 21 consistent with the direction of vertical deflection magnetic field H.
The screen method of the display unit relevant with the 3rd invention of the present invention, the scanning beam that its display unit 2 has CRT22 and makes this CRT22 is at least to the deflecting coil 222 of vertical direction deflection, the screen method of this display unit is characterised in that: will be configured at the barricade 21 that specific direction has a strong shield effectiveness on the back part 23b of neck of above-mentioned CRT22, and make the shield direction x of this barricade 21 consistent with the direction of the vertical deflection magnetic field H that is produced by above-mentioned deflecting coil 222.
The screen method of the display unit relevant with the 4th invention of the present invention, its display unit 2 is used under the state that 2 display unit 2 are provided with back-to-back, the screen method of this display unit is characterised in that: will be configured on the above-mentioned display unit 2 back portion 23b separately at 21 of barricades that have strong shield effectiveness on the specific x direction, and make the shield direction x of this barricade 21 consistent with the direction of vertical deflection magnetic field H.
The game machine of the employing display unit relevant with the 5th invention of the present invention, installed the scanning beam that has CRT22 and make this CRT22 in the substantial middle position at least to the display unit 2 of the deflecting coil 222 of vertical direction deflection, the game machine of this employing display unit is characterised in that: will be configured at the barricade 21 that specific direction has a strong shield effectiveness on the back part 23b of neck of above-mentioned CRT22, and make the shield direction x of this barricade 21 consistent with the direction of the vertical deflection magnetic field H that is produced by above-mentioned deflecting coil 222.
The screen method of the game machine of the employing display unit relevant with the 6th invention of the present invention, the scanning beam that has CRT22 and make this CRT22 has been installed at least to the display unit 2 of the deflecting coil 222 of vertical direction deflection in the substantial middle position, the screen method of the game machine of this employing display unit is characterised in that: will be configured at the barricade 21 that specific direction has a strong shield effectiveness on the back part 23b of neck of above-mentioned CRT22, and make the shield direction x of this barricade 21 consistent with the direction of the vertical deflection magnetic field H that is produced by above-mentioned deflecting coil 222.
As adopt the 1st invention of the present invention and the 2nd invention display unit, the 3rd invention and the 4th invention display unit screen method, adopt the display unit of the 5th invention game machine, use the screen method of game machine of the display unit of the 6th invention, the vertical deflection magnetic flux h that then leaks into the display unit back side is by barricade 21 shieldings, so can suppress the influence that the vertical deflection magnetic flux h by another display unit 2 at the back side that is located at display unit 2 causes.In addition, as barricade 21, employing has the barricade of strong shield effectiveness at specific direction, and the direction of the shield direction x that makes this barricade 21 and the vertical deflection magnetic field H that is produced by above-mentioned deflecting coil 222 as one man is configured, so even the area of barricade 21 and weight are little, also still can shield fully, thereby can will be reduced to bottom line because of the weight increase that shields the display unit 2 that causes.
Description of drawings
Fig. 1 is the presentation graphs of the state that is provided with of display unit 2 of the present invention and game machine 1.
Fig. 2 is the oblique view that is used to illustrate the magnetic deflection field of CRT22.
Fig. 3 be explanation leak game machine 1 that vertical deflection magnetic flux h uses state description figure is set.
Fig. 4 is the oblique view of the display unit 2 of looking from behind.
Fig. 5 is the oblique view of the display unit 2 of looking from behind.
Fig. 6 be in order to explanation leak vertical deflection magnetic flux h game machine 1 state description figure is set.
Fig. 7 be in order to explanation leak vertical deflection magnetic flux h game machine 1 state description figure is set.
Fig. 8 is the oblique view of the display unit 2 of looking from behind.
Fig. 9 is the oblique view of the display unit 2 of looking from behind.
The presentation graphs of Figure 10 other application examples of the present invention.
[symbol description]
1 game machine (billiard table)
2 display unit
21 barricades
22 CRT
23 back cabinets
The 23b back portion
211 barricades are installed and are used hook-like part
221 CRT panels
222 deflecting coils
223 CRT printed circuit board (PCB)s
The H vertical deflection magnetic field
H leaks the vertical deflection magnetic flux
Embodiment
Below, with reference to the description of drawings embodiments of the invention that its example is shown.
Fig. 1 is the presentation graphs that state is set of the present invention.
In the drawings, the 1st, billiard table (game machine), 2 be mounted in above-mentioned billiard table 1 the substantial middle position employing the display unit of CRT.
Billiard table 1 is listed as many billiard tables in the billiard room along laterally lining up 1, and several on the same stage mutually billiard tables is listed as along laterally lining up 1 at its back side, promptly is provided with by the configuration mode that is called " island " shape district.
In " island " shape district of this billiard table, if do not establish the structure of path in the central authorities on " island ", the interval of then back-to-back billiard table 1 is quite close, and is especially in display unit 2 parts of protruding rearwards, close to only tens centimetres and even the almost contact of being separated by.
The size of display unit, be to be roughly 6 inches small-sized, so leaking the deflection magnetic flux is little to coverage on every side as comparing with large-scale monitor, but as near arriving above-mentioned degree, then under the influence of another display unit being carried out the magnetic deflection field that vertical deflection uses, displayed image will fluctuate.In addition, horizontal deflection magnetic field (about 15KHz) is because than vertical deflection magnetic field (about 60Hz) frequency height, so the influence of levels of leakage magnetic deflection field can be ignored.
Fig. 2 is the presentation graphs of vertical deflection magnetic field state, the 22nd, and CRT, the 221st, the CRT panel, the 222nd, deflecting coil (DY), the 223rd, CRT printed circuit board (PCB), H represent that h represents the vertical deflection magnetic flux by the vertical deflection magnetic field of deflecting coil 222 generations.Because this vertical deflection magnetic field H swings electron beam along the vertical direction, so the direction in magnetic field is with the frequency change of about 60Hz.
Fig. 3 is the local oblique view of Fig. 1, and the vertical deflection magnetic flux h that leaks from display unit 2a enters another display unit 2b, therefore makes the display frame of display unit 2b produce fluctuation.
As eliminating the method to the interference effect of picture that is caused by the above-mentioned vertical deflection magnetic field H that is arranged on the display unit at the back side, (1) is not provided with CRT formula display unit in the rear side of the billiard table that has CRT formula display unit.That is, the billiard table that has CRT formula display unit in addition can be set; (2) when the back side in CRT formula display unit is provided with CRT formula display unit, 1. make the interval enough wide (more than tens centimetres) at the back side of display unit, 2. make the magnetic deflection field unanimity of 2 display unit, 3. display unit is shielded, reduce and leak deflection magnetic flux.The method of being mentioned all can be considered.And as being discussed respectively, then (1) and (2) method 1. depend on the management tactics in billiard room or structure are set, so as the manufacturer of paying billiard table, the one side of the adaptation of being difficult to is arranged.(2) method 2., though be effective method, when the display unit that is located at the back side be other producer make the time, must take countermeasure difficult to deal with at the scene that is provided with of billiard table, this is pretty troublesome thing.(2) method 3. though may increase the weight of display unit because of adding shielding, can take some countermeasures in the fabrication stage.Can obtain the result that spoken of.
The application's applicant is according to above-mentioned investigation result, to having carried out further research in (2) method 3. that the fabrication stage takes some countermeasures.That is, in (2) method 3., leak the deflection magnetic flux for reducing, though available quite thick iron plate covers whole display unit, this will increase the weight of display unit, because of increased load on billiard table, so can not install at all.Owing to there is such problem,, invented the structure that illustrates in an embodiment so the method for neither gaining in weight and can suppress to leak magnetic deflection field is effectively studied.
Fig. 4 is the oblique view of looking from the oblique upper at the display unit of the present invention back side.In the drawings, the 23rd, resin system back cabinet, 21 are mounted in the barricade on the back cabinet 23 back portion 23b, this barricade 21 forms by the size of the back side 23b that only covers back cabinet 23, aspect its material, adopt the directed electromagnetism steel band (permeability of the direction of arrow x is higher than other directions) that on specific direction (direction of arrow x), has strong shield effectiveness.So, under the direction of the arrow x that makes barricade 21 situation consistent with the direction of vertical deflection magnetic field, can reduce the amount of leaking deflection magnetic flux h very effectively, can suppress simultaneously entering of the deflection magnetic flux that leaks from the display unit that is arranged on the back side very effectively, so can lower and even eliminate interference to display frame.
Like this, by barricade 21 is adopted directed electromagnetism steel band and makes its directed direction consistent with the direction of vertical deflection magnetic field, can shield the vertical deflection magnetic flux of leakage very effectively, so compare with the situation of the electromagnetism steel band that uses astaticisms such as iron plate, can make the thickness attenuation of barricade.In addition, owing to be barricade 21 to be configured in leaked part that vertical deflection magnetic flux h influences promptly on the back portion 23b of the very near rear side of neck (negative electrode) part of CRT22, so can shield effectively, and can reduce the area of barricade 21, that is, can make its size only cover the back portion 23b of back cabinet 23.Like this, because the thickness and the area of barricade 21 can both reduce, so the weight increase of display unit can be forced down Min..
Fig. 5 is the oblique view of looking later from display unit 2, and the state after barricade 21 is pulled down from back cabinet 23 is shown.
The 211st, on back cabinet back portion 23b, carry out the fixedly hook-like part of usefulness of screw thread, be used for the downside of barricade 21 is hooked on the back underside of back cabinet 23, by hook-like part 211 is screwed in recess 231, barricade 21 can be installed on the back portion 23b of back cabinet 23.
In addition, being provided with shown in the state diagram of billiard table 1 after the installation CRT formula display unit of Fig. 6 and Fig. 7, even display unit 2 is installed on the billiard table 1 so that the direction of the shield direction that its display frame when becoming lengthwise, also need only make barricade 21 and the vertical deflection magnetic field of each display unit is consistent barricade 21 is installed in the display unit back side gets final product.
In Fig. 6, the vertical deflection magnetic field H of the display unit 2a that installs in laterally long mode is mutually orthogonal with the vertical deflection magnetic field H ' of the display unit 2 ' b that installs in vertically long mode, in this case, as shown in Figure 8, also the shield direction x of barricade 21 must be configured to consistent with the direction of each vertical deflection magnetic field.In Fig. 8, the shield direction x of barricade 21a is configured to parallel with the vertical deflection magnetic field H of display unit 2a shown in Figure 6, be configured to the shield direction x ' of barricade 21b parallel with the vertical deflection magnetic field H ' of display unit 2b shown in Figure 6.
Fig. 7 illustrates 2 back-to-back display unit 2 ' a, 2 ' b and all is installed in state on the billiard table 1 in vertically long mode, even in this case, as shown in Figure 9, the vertical deflection magnetic field H of the shield direction x of barricade 21 and display unit 2 as one man is configured in barricade 21 on the display unit 2 gets final product.
In addition, as Fig. 3 and shown in Figure 7, when the direction of the vertical deflection magnetic field H of the relative display unit in the back side is consistent,, also can and only barricade 21 is installed on any one display unit 2 therein even be not that barricade 21 all is installed on each display unit.In addition, barricade 21 also can not be installed on the display unit 2, but is fixed on the other fixture at display unit 2 back sides, for example can be fixed on the support that is supported on billiard table 1.
Figure 10 illustrates application examples of the present invention, the 200th, the employed large-scale CRT formula display unit more than 14 inches that is connected with computer etc., as shown in the figure, when according to be provided with the back side that on-the-spot concrete condition makes display unit 200 near thereby the vertical deflection magnetic field that makes picture be subjected to another display unit 200 when influencing, by aforesaid barricade with baffle effect is installed, can utilize the influence that the weight increase is forced down Min. and can be suppressed to leak vertical deflection magnetic field with the little barricade of size on its back portion 223b.As shown in the figure, the 221st, CRT panel, the 22nd, CRT, the 23rd, back cabinet.
As adopt the present invention, even a kind of screen method that also can suppress the game machine of the display unit of mutual magnetic deflection field influence, the screen method of display unit, the game machine that adopts display unit and employing display unit under the situation of the back side of 2 CRT near setting can be provided.
Claims (6)
1. display unit, the scanning beam that it has cathode ray tube and makes this cathode ray tube is at least to the deflecting coil of vertical direction deflection, it is characterized in that: the barricade that will have strong shield effectiveness on specific direction is configured in the back part of the neck of above-mentioned cathode ray tube, makes the shield direction of this barricade consistent with the direction of the vertical deflection magnetic field that is produced by above-mentioned deflecting coil.
2. display unit, under the state that 2 display unit are provided with back-to-back, use, it is characterized in that: above-mentioned display unit has cathode ray tube, with the scanning beam of this cathode ray tube at least to the deflecting coil of vertical direction deflection, barricade with only have strong shield effectiveness on specific direction at the back portion of this display unit makes the shield direction of this barricade consistent with the direction of vertical deflection magnetic field.
3. the screen method of a display unit, the scanning beam that its display unit has cathode ray tube and makes this cathode ray tube is at least to the deflecting coil of vertical direction deflection, this screen method is characterised in that: the barricade that will have strong shield effectiveness on specific direction is configured in the back part of the neck of above-mentioned cathode ray tube, makes the shield direction of this barricade consistent with the direction of the vertical deflection magnetic field that is produced by above-mentioned deflecting coil.
4. the screen method of a display unit, 2 display unit are used under the state that is provided with back-to-back, this screen method is characterised in that: above-mentioned display unit has cathode ray tube, with the scanning beam of this cathode ray tube at least to the deflecting coil of vertical direction deflection, barricade with only have strong shield effectiveness on specific direction at the back portion of this display unit makes the shield direction of this barricade consistent with the direction of vertical deflection magnetic field.
5. game machine that adopts display unit, installed the scanning beam that has cathode ray tube and make this cathode ray tube at least to the display unit of the deflecting coil of vertical direction deflection at the middle position of this game machine, this game machine is characterised in that: will be configured in the back part of the neck of above-mentioned cathode ray tube at the barricade that specific direction has a strong shield effectiveness, and make the shield direction of this barricade consistent with the direction of the vertical deflection magnetic field that is produced by above-mentioned deflecting coil.
6. screen method that adopts the game machine of display unit, installed the scanning beam that has cathode ray tube and make this cathode ray tube at least to the display unit of the deflecting coil of vertical direction deflection at the middle position of this game machine, the screen method of this game machine is characterised in that: will be configured in the back part of the neck of above-mentioned cathode ray tube at the barricade that specific direction has a strong shield effectiveness, and make the shield direction of this barricade consistent with the direction of the vertical deflection magnetic field that is produced by above-mentioned deflecting coil.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31805695A JP3306282B2 (en) | 1995-12-06 | 1995-12-06 | Display device for pachinko machine, shield method for display device for pachinko machine, pachinko machine with pachinko machine display, shield method for pachinko machine with display device for pachinko machine |
| JP318056/1995 | 1995-12-06 | ||
| JP318056/95 | 1995-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1160900A CN1160900A (en) | 1997-10-01 |
| CN1136722C true CN1136722C (en) | 2004-01-28 |
Family
ID=18094996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB961185759A Expired - Fee Related CN1136722C (en) | 1995-12-06 | 1996-12-06 | Display apparatus and its screening method, Computer game using display device and its screen method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3306282B2 (en) |
| KR (1) | KR100242275B1 (en) |
| CN (1) | CN1136722C (en) |
| TW (1) | TW329592B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07115656A (en) * | 1993-10-14 | 1995-05-02 | Sony Corp | Cathode-ray tube |
-
1995
- 1995-12-06 JP JP31805695A patent/JP3306282B2/en not_active Expired - Fee Related
-
1996
- 1996-10-24 TW TW085113030A patent/TW329592B/en active
- 1996-12-05 KR KR1019960062005A patent/KR100242275B1/en not_active IP Right Cessation
- 1996-12-06 CN CNB961185759A patent/CN1136722C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1160900A (en) | 1997-10-01 |
| JPH09163269A (en) | 1997-06-20 |
| JP3306282B2 (en) | 2002-07-24 |
| TW329592B (en) | 1998-04-11 |
| KR970058018A (en) | 1997-07-31 |
| KR100242275B1 (en) | 2000-02-01 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |