JP2001243888A - Cathode-ray tube and image display device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cathode-ray tube wherein the vibration of a mask frame is damped without delay even if the vibration is carried from outside so that there is no color slippage caused by landing shift of an electron beam. SOLUTION: The cathode-ray tube is provided with an electron gun emitting an electron beam, a mask frame having a mask formed with a plurality of holes or slits for passing the electron beam emitted by the gun therethrough and a frame attached with the mask thereon, a panel formed with a phosphor layer thereon bring scanned by the beam which has passed through a plurality of holes or slits. The panel is equipped with a stud pin supporting the frame wherein the frame has an elastic support body to bit with the stud pin. At least one of the electric support bodies is comprised of a fitting portion formed with a fitting hole fitting into the stud pin, and an elastic portion to contact with the stud pin. The elastic portion is in friction with the stud pin so as to generate frictional force damping the vibration of the mask frame when the mask frame is vibrated.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a cathode ray tube,
In particular, the present invention relates to a cathode ray tube characterized by an elastic support used for supporting a frame and an image display device using the same (including a television receiver and an image monitor used for a personal computer, an oscilloscope, and the like).

2. Description of the Related Art FIG. 20A shows a conventional cathode ray tube 190.
0 is shown. A conventional cathode ray tube 1900 is shown in FIG.
As shown in FIG. 9A, a panel 1903 in the form of a substantially rectangular container having a side wall 1902 provided around a curved panel body 1901 and a funnel-shaped funnel 1904 joined to the side wall 1902 are provided. Further, the mask frame 1 is opposed to a phosphor screen 1905 composed of phosphor layers of three colors (R (red), G (green), and B (blue)) formed on the inner surface of the main body 1901 of the panel 1903.
909 are arranged. The mask frame 1909 is
A mask 1907 is mounted on a substantially rectangular frame 1908 and attached. The mask 1907 has a substantially rectangular plate shape, and has a large number of electron beam passage holes or slits 1906 formed therein. Meanwhile, funnel 19
An electron gun 1912 for emitting three electron beams 1911 is arranged in a neck 1910 of the 04. This electron gun 19
The three electron beams 1911 emitted from the light source 12 are deflected by a magnetic field generated by a deflecting device 1913 mounted outside the funnel 1904, and the phosphor screen 1905 is horizontally and vertically scanned through a mask frame 1909 to form a color image. indicate. In FIG. 20A, reference numeral 1916 denotes an inner magnetic shield attached to the frame 1908 to shield an external magnetic field such as terrestrial magnetism. In such a cathode ray tube 1900, in order to display a correct color image on the phosphor screen 1905, the mask frame 1909 is held in a predetermined matching relationship with the three-color phosphor layers constituting the phosphor screen 1905. It is necessary to. FIG. 20B is a cross-sectional view along the cross-section AA in FIG. As a method of supporting the mask frame 1909, a substantially V-shaped elastic support 1914 is attached to each corner of the frame 1908 as shown in FIG.
4 is detachably supported by being fitted to stud pins 1915 provided at each corner of the side wall 1902 of the panel 1903. FIG. 21 (a)
The configuration of another conventional cathode ray tube 2000 is shown. FIG.
(B) is a sectional view of a section BB of FIG. 21 (a). The same components as those of the cathode ray tube 1900 described above with reference to FIG. A detailed description of these will be omitted. As shown in FIG. 21B, a band-shaped elastic support 2001 is attached to the center of each side of the frame 1908, and the elastic support 2001 is provided at the center of each surface inside the side wall 1902 of the panel 1903. In general, a type which is detachably supported by fitting to 1915 is used. In general, in order to display an image without color shift on a phosphor screen of a cathode ray tube, an electron beam 1911 passing through a through hole formed in a mask 1907 of a mask frame 1909 (shadow mask) is applied to the phosphor screen 1905. It is necessary to properly land on each of the three color phosphor layers. For that purpose, the positional relationship between the panel 1903 and the mask frame 1909 (shadow mask),
Particularly, the inner surface of the panel main body 1901 on which the phosphor screen 1905 is formed and the panel main body 1901 of the mask 1907.
It is necessary to keep the distance (q value) from the side surface (shadow mask surface) within a predetermined allowable range. In a state where the cathode ray tube is incorporated in a set such as a television receiver or an image monitor, vibration from a speaker incorporated in the set or vibration from the outside of the set is transmitted to the cathode ray tube through the cabinet, and the frame 1908 and the mask 1907 are transmitted. However, there is a problem that the vibration occurs due to resonance. At this time,
If the vibration amplitude of the mask 1907 and the frame 1908 due to resonance exceeds the allowable range of the q value, the electron beam 1911
, The color shift occurs, and the image quality deteriorates. Also, in the case of vibration in the plane direction of the mask 1907, when the amplitude of the electron beam passage hole 1906 reaches the position of an adjacent hole, mislanding of the electron beam 1911 occurs similarly to the above. In order to suppress the phenomenon that the mask 1907 and the frame 1908 vibrate due to the vibration transmitted from the outside of the cathode ray tube, it is necessary to stop the vibration of the frame 1908 promptly. This is because even if the vibration of the mask 1907 is stopped, if the vibration of the frame 1908 does not stop, the mask 1907 fixed to the frame 1908 also continues to vibrate. Further, since the inside of the cathode ray tube is in a vacuum, the vibration due to friction with air is not attenuated, and the vibration of the mask 1907 and the vibration of the frame 1908 can be said to be in a situation where the vibration tends to continue for a long time. Therefore, in order to suppress the vibration, it is necessary to convert the vibration energy into the friction energy by devising the generation of friction by the vibration inside the cathode ray tube. FIG.
(A), (b) and (c) show a specific configuration of the conventional elastic support 1914 shown in FIGS. 20 (a) and (b) (Japanese Patent Application Laid-Open No. 9-293449). The elastic support 1914 is fixed to the fixing portion 2 fixed to the frame 1908.
101, fitting hole 210 for fitting to stud pin 1915
And connecting portions 2103a and 2103b connecting the fixed portion 2101 and the fitting portion 2102.
Consists of The connecting portions 2103a and 2103b are fixed by welding at a welding point 2107. In the conventional elastic support 1914, a plate-shaped bent portion 2105 bent at a right angle to the fixed portion 2101 and projected, and a fitting portion 2102
Is provided with a slit portion 2106 into which the bent portion 2105 is fitted, and the bent portion 2105 is inserted into the slit portion 2106 when the stud pin 1915 and the fitting hole 2104 are fitted. That is, when the frame 1908 vibrates, the bent portion 2105 rubs the inner wall surface of the slit portion 2106, and the vibration energy is converted into friction energy, so that the vibration of the frame 1908 is suppressed. FIG. 23A shows FIGS. 21A and 21B.
1 shows a specific configuration of the conventional elastic support 2001 shown in Japanese Patent Application Laid-Open No. 9-35653. The elastic support 2001 is a leaf spring, and is arranged near the center of each side of the frame 1908 as shown in FIG. 21B, unlike the elastic support 1914 shown in FIG. This elastic support 20
Reference numeral 01 denotes a configuration in which a plurality of leaf springs 2002 and 2003 having the same shape are stacked. When the frame 1908 vibrates due to external vibration, the elastic support 2001
Is deformed, and the leaf spring 20 is superimposed at the same time as the deformation.
02 and 2003, the vibration of the frame 1908 is promptly attenuated. FIG.
(B) shows the state of fitting with the stud pin 1915.

Problems to be Solved by the Invention FIGS. 22 (a) to 22 (c)
In the conventional elastic support 1914 shown in FIG.
When 08 vibrates, the surface of the bent portion 2105 rubs against the inner wall surface of the slit portion 2106, so that the vibration is rapidly attenuated. However, in the case of rubbing on the surfaces almost perpendicular to each other (the surface of the bent portion 2105 and the inner wall surface of the slit portion 2106), the surfaces to be rubbed are easily caught and locked unless the surfaces to be rubbed are processed very smoothly. In particular, since the inside of the cathode ray tube is under a high vacuum, the coefficient of friction is larger than that in the atmosphere, and the surface of the bent portion 2105 and the slit portion 21
There is a high possibility that the inner wall surface will not move due to being caught by the inner wall surface of the 06. Once the bent portion 2105 and the slit portion 2106 are caught and do not move, the elastic support cannot fulfill its original function. That is, the temperature of the mask rises due to the irradiation of the electron beam during the operation of the cathode ray tube, and when the mask expands, the phosphor screen 1905
Inner surface of panel body 1901 formed with mask and mask 190
7 so as to correct the positional relationship (q value) between the panel body 1901 and the surface (shadow mask surface) on the panel body 1901 side.
08 cannot be adjusted. Because,
The elastic support 1914 includes the fitting portion 2102 and the connecting portion 210.
This is because the mechanism of correcting the position of the frame 1908 by the elasticity of 3a. In the conventional elastic support body 2001 shown in FIG. 23, the leaf springs 2002 and 2003 having the same shape are completely overlapped with each other.
Unless the vibration is such that a large load is applied such that the 02 is deformed, the leaf springs 2002 and 2003 do not rub against each other. Further, since the contact area between the leaf springs 2002 and 2003 is large, the friction coefficient between the leaf springs 2002 and 2003 is large. For this reason, the vibration of the frame 1908 cannot be controlled by friction unless the vibration amplitude is large. In particular, with respect to the movement oscillating in the tube axis direction, the conventional elastic support 2001 has a large friction coefficient, so that the leaf spring 200
2 and 2003 are likely to perform the same movement while overlapping each other, so that the friction between the leaf springs 2002 and 2003 is extremely small, and the vibration suppressing effect is small. In practice, the vibration amplitude of the frame 1908 is, for example, approximately 100 in the tube axis direction.
If it exceeds μm, the color shift becomes remarkable. With respect to such a minute vibration amplitude, the load applied to the leaf spring 2002 is small, and its deformation is also small. Therefore, the conventional elastic support 20
01 had a small vibration suppressing effect and was not practical. The present invention has been made to solve the above-described problems, and its object is to rapidly attenuate frame vibration even when vibration is transmitted from the outside to the cathode ray tube, and to reduce the impact of electron beam mislanding. An object of the present invention is to provide a cathode ray tube having no color shift.

A cathode ray tube according to the present invention comprises an electron gun for emitting an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes. A mask frame including a frame on which the mask is mounted; and a panel on which a phosphor layer formed by the electron beam that has passed through the plurality of holes or the slits is formed, and the panel supports the frame. The frame includes a stud pin, the frame includes an elastic support that fits with the stud pin, and at least one of the elastic supports has a fitting portion formed with a fitting hole that fits with the stud pin; An elastic portion in contact with the stud pin, wherein the elastic portion rubs against the stud pin so that when the mask frame vibrates, a frictional force for damping the vibration of the mask frame is generated. There, the object is achieved. The stud pin may have a tip portion, and the elastic portion may rub against the tip portion in the tube axis direction. The elastic portion may be formed by rolling a metal plate into a cylindrical shape. The elastic portion may have a leaf spring shape obtained by bending a metal plate. The elastic support may further include a fixing part for fixing the elastic support to the frame, and the elastic part may be fixed to the fixing part. The fitting portion may be provided on an opposite side of the frame with respect to the fixing portion. The elastic part may be provided between the fitting part and the fixing part. The elastic support may further include a connecting part connecting the fixing part and the fitting part. The thickness (t0) of the fixed portion and the thickness (t1) of the connection portion
And the relation between the plate thickness (t2) of the elastic portion and t0> t1
And t0 ≧ t2 may be satisfied. The relationship between the plate thickness (t0) of the fixed portion, the plate thickness (t1) of the connecting portion, and the plate thickness (t2) of the elastic portion may satisfy the relationship of t0> t1 and t1 ≧ t2. The cross section of the elastic support may have a substantially V shape. The elastic support may have the shape of a substantially strip-shaped plate. The elastic support may further include a connecting part connecting the fixing part and the fitting part, and the elastic part may be fixed to the connecting part. The elastic part may be fixed to the fitting part. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be arranged at least on the major axis. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be disposed at least on the minor axis. The frame may have corners, and the elastic support may be disposed at each of the corners.
The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun is
A field electron emission element for narrowing the electron beam may be included. The elastic support has a first thermal expansion coefficient.
A bimetal structure in which a metal and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion may be joined. The longitudinal length of the first region made of the first metal may be longer than the longitudinal length of the second region made of the second metal. The first metal may include stainless steel, and the second metal may include an invar material. Another cathode ray tube according to the present invention includes an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits. The panel includes a stud pin that supports the frame. Includes an elastic support that fits with the stud pin,
At least one of the elastic supports includes a fitting portion formed with a fitting hole to be fitted with the stud pin, and the fitting portion includes a sliding piece formed in the fitting hole and having a funnel shape. Each of the surfaces of the sliding piece rubs against the side surface of the stud pin so that when the mask frame vibrates, a frictional force is generated to attenuate the vibration of the mask frame. Achieved. A fixing portion for fixing the elastic support to the frame,
The vehicle may further include a connecting portion that connects the fixing portion and the fitting portion. The length of the sliding piece is 0.5 mm or more.2.
It may be 5 mm or less. The elastic support may have the shape of a substantially strip-shaped plate. The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun may include a field electron emission element that narrows the electron beam. Still another cathode ray tube according to the present invention is an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel formed with a phosphor layer that is scanned by the electron beam passing through the plurality of holes or the slits, the panel including a stud pin supporting the frame, The frame includes an elastic support that fits with the stud pins,
At least one of the elastic supports includes a fitting portion in which a fitting hole for fitting with the stud pin is formed, and the fitting portion includes
A central portion including the fitting hole, a first peripheral portion separated from the central portion by a first cut, and a central portion formed on a side opposite to the first cut with respect to the central portion; And a second peripheral portion to be separated, wherein the cut surface on the first cut side of the central portion is configured such that when the mask frame vibrates, a frictional force for damping the vibration of the mask frame is generated. Rub against the cut surface of the first peripheral portion facing the first cut,
The cut surface of the central portion on the second cut side faces the second cut portion of the second peripheral portion so that when the mask frame vibrates, a frictional force that dampens the vibration of the mask frame is generated. It rubs against the cut surface, thereby achieving the above purpose. The elastic support may further include a fixing part fixing the elastic support to the frame, and a connecting part connecting the fixing part and the fitting part. The cross section of the elastic support may have a substantially V shape. The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun may include a field electron emission element that narrows the electron beam. Still another cathode ray tube according to the present invention is an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel on which a phosphor layer that is scanned by the electron beam passing through the plurality of holes or the slits is formed, and the panel includes a stud pin that supports the frame.
The frame includes an elastic support that fits with the stud pin, and at least one of the elastic supports has a fitting portion formed with a fitting hole that fits with the stud pin; A fixing portion fixed to the frame, wherein the fixing portion has first and second bent portions bent toward the fitting portion, and the fitting portion comes into contact with the first bent portion. And a fourth bent portion bent so as to be in contact with the second bent portion, wherein the first bent portion is provided when the mask frame vibrates. Rubs against the third bent portion to generate a frictional force that attenuates the vibration of the mask frame, and the second bent portion generates a frictional force that attenuates the vibration of the mask frame when the mask frame vibrates. The fourth
It rubs against the folds, thereby achieving the above purpose. The elastic support may further include a connecting part connecting the fixing part and the fitting part. The cross section of the elastic support may have a substantially V shape. The first bent portion has a fifth bent portion formed so as to suppress displacement of the fitting portion in a direction opposite to the fixed portion, and the second bent portion has a direction of the fixed portion. And a sixth bent portion formed so as to suppress the displacement of the fitting portion into the second bent portion. The frame may have corners, and the elastic support may be disposed at each of the corners. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be arranged at least on the major axis. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be disposed at least on the minor axis. The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun may include a field electron emission element that narrows the electron beam. Still another cathode ray tube according to the present invention is an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel formed with a phosphor layer that is scanned by the electron beam passing through the plurality of holes or the slits, the panel including a stud pin supporting the frame, The frame includes an elastic support that fits with the stud pin, and at least one of the elastic supports has a fitting portion in which a fitting hole that fits with the stud pin is formed; And a connecting part connecting the fixing part and the fitting part. The area of the fixing part (S1), the area of the connecting part (S2), and the area of the fitting part ( S3 Relationship, satisfies S1 ≧ S2 and S1 ≧ S3, the object can be achieved. Irregularities are formed on a first surface of the fixing portion that contacts the frame, and irregularities are formed on a second surface of the frame that contacts the fixing portion, and the first surface and the second surface are welded. It may be fixed. The frame may include a mounting plate for fixing the fixing unit. Irregularities are formed on a first surface of the fixing portion that is in contact with the mounting plate, and irregularities are formed on a second surface of the mounting plate that is in contact with the fixing portion. The first surface and the second surface are It may be fixed by welding. The fixing part,
A welding area fixed to the frame by welding may be included, and the welding area may be arranged on a side opposite to the connection section with respect to a center of the fixing section. The relationship among the area (S1) of the fixing part, the area (S2) of the connecting part, and the area (S3) of the fitting part may satisfy S1 ≧ S2 ≧ S3. The fixing portion may have a bent portion bent toward the frame. The cross section of the elastic support may have a substantially V shape. The elastic support may have the shape of a substantially strip-shaped plate. The ratio of the total area of the fixed portions of the elastic support to the weight of the frame may be 5 cm2 / kg or more. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be arranged at least on the major axis. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be disposed at least on the minor axis.
The frame has a corner, and the elastic support is
It may be arranged at each of the corners. The elastic support may have a bimetal structure in which a first metal having a first coefficient of thermal expansion and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion are joined. The longitudinal length of the first region made of the first metal may be longer than the longitudinal length of the second region made of the second metal.
The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun is
A field electron emission element for narrowing the electron beam may be included. Still another cathode ray tube according to the present invention is an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel on which a phosphor layer that is scanned by the electron beam passing through the plurality of holes or the slits is formed, the panel comprising a first and a second stud supporting the frame. A first pressing force that presses the first elastic support, the frame including first and second elastic supports that respectively fit the first and second stud pins. And a second pressing force with which the second stud pin presses the second elastic support is substantially different, whereby the object is achieved. The first pressure and the second pressure are 5 N (Newton) or more and 1
00N (Newton) or less. The first and second elastic supports have a spring coefficient of 1 N / mm or more and 25 or more.
N / mm or less. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be arranged at least on the major axis. The frame may include a pair of major axes and a pair of minor axes, and the elastic support may be disposed at least on the minor axis. The frame may have corners, and the elastic support may be disposed at each of the corners. The elastic support may have a bimetal structure in which a first metal having a first coefficient of thermal expansion and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion are joined. The longitudinal length of the first region made of the first metal may be longer than the longitudinal length of the second region made of the second metal. The cross section of the elastic support may have a substantially V shape. The elastic support may have the shape of a substantially strip-shaped plate. The mask may include a damper provided at an end of the mask to attenuate vibration of the mask. The electron gun may include a field electron emission element that narrows the electron beam.
Still another cathode ray tube according to the present invention is an electron gun that emits an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame to which the mask is attached. And a panel formed with a phosphor layer that is scanned by the electron beam passing through the plurality of holes or the slits, the panel including a stud pin supporting the frame, The frame includes an elastic support that fits with the stud pin, and at least one of the elastic supports has a fitting portion formed with a fitting hole that fits with the stud pin, and an elastic contact with the fitting portion. The elastic portion rubs against the fitting portion such that when the mask frame vibrates, a frictional force is generated to attenuate the vibration of the mask frame. It is achieved. The elastic portion may be arranged on both sides of the fitting hole. The elastic portion may be formed by rolling a metal plate into a cylindrical shape. The elastic portion may have a leaf spring shape obtained by bending a metal plate. The elastic support may further include a fixing part for fixing the elastic support to the frame, and the elastic part may be fixed to the fixing part. The cross section of the elastic support may have a substantially V shape. The mask may include a damper provided at an end of the mask to attenuate vibration of the mask.
The electron gun may include a field electron emission element that narrows the electron beam. An image display device according to the present invention uses the cathode ray tube according to the present invention, thereby achieving the above object. According to a certain aspect of the present invention, when the frame vibrates, the elastic portion and the stud pin rub, so that the frame vibration is rapidly attenuated, and a cathode ray tube without electron beam mislanding can be provided. According to another aspect of the present invention, when the frame vibrates, the sliding piece having a funnel shape and the stud pin rub against each other, so that the frame vibration is rapidly attenuated, and a cathode ray tube without electron beam mislanding is provided. it can. According to yet another aspect of the present invention,
When the frame vibrates, the cut surface at the center rubs against the cut surface at the peripheral portion, so that the frame vibration is rapidly attenuated, and a cathode ray tube free from mislanding of the electron beam can be provided. According to still another aspect of the present invention, when the frame vibrates, the bent portions rub against each other, so that the frame vibration is rapidly attenuated, and a cathode ray tube without electron beam mislanding can be provided. According to still another aspect of the present invention, when the frame vibrates, the fixed portion having the largest area rubs against the frame, so that the frame vibration is rapidly attenuated, and a cathode ray tube without electron beam mislanding can be provided. According to still another aspect of the present invention, even when a strong impact such as a package drop test is applied, welding between the fixed portion and the frame can be prevented from coming off, and a cathode ray tube without electron beam mis-lending can be provided. . According to still another aspect of the present invention, it is possible to increase the distance between the welding area of the fixed part and the fitting part, and effectively suppress the mislanding of the electron beam due to a temperature rise during the operation of the cathode ray tube. Will be possible. In addition, the area of the non-welded portion of the fixed portion sandwiched between the welding region and the connecting portion can be made large, and when the frame is vibrated, the friction between the frame and the fixed portion is performed in this region, so that the frame vibration is quickly performed. Can be suppressed.
According to still another aspect of the present invention, by making the internal stress of the elastic support different, the natural frequency of the elastic support having the same shape can be made different, the resonance of the frame vibration can be prevented, and the elastic vibration can be quickly attenuated. According to still another aspect of the present invention, the vibration energy of the mask can be converted into the friction energy by the damper, and the mask vibration can be rapidly attenuated.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below.
The embodiments will be described with reference to the accompanying drawings. (Embodiment 1) FIG. 1A shows Embodiment 1 of the present invention.
1 shows a cathode ray tube 100 according to the first embodiment. FIG.
It is CC sectional drawing of (a). This cathode ray tube is
A side wall portion 102 is provided around the effective display portion 101.
Substantially rectangular panel 103 and cylindrical neck 1
04 and funnel 105 on the funnel
Having. On the inner surface of the effective display unit 101 of the panel 103
Is a three-color fluorescent light emitting blue (B), green (G) and red (R)
The phosphor screen 106 in which the bodies are arranged two-dimensionally is shaped
Is done. With respect to this phosphor layer 106,
Number of electron beam passing holes (or slits) 107
Substantially rectangular mask 10 formed of a gentle curved surface
Frame 110 with 8 attached to frame 109
However, the panel 10 is provided by a mask frame supporting means described later.
3. The major axis 109a of the frame 109 is
Fe-Ni alloy with triangular (or L-shaped) cross section, short
The shaft 109b has a U-shaped section (or an L-shaped section, or
A square or square bar) Fe-Ni alloy and a mask
108 is welded on both long shafts 109a of the frame 109.
In this state, it is in a state of being mounted between both long shafts 109a. Normal,
The mask 108 is also made of the same material as the frame 109,
Among Fe-Ni alloys, alloys containing 36 wt% of Ni (trademark)
(Industryally called Invar)
Thermal expansion coefficient is small, and thermal deformation during operation is minimized.
come. Also, to shield external magnetic fields such as terrestrial magnetism,
Frame 109 has an inner magnetic shield 111
I am. On the other hand, in the neck 104 of the funnel 105
Three electron beams 112 are mounted outside the funnel 105
Deflected by the magnetic field generated by the deflection yoke 113
The phosphor screen 106 is horizontally and vertically
It is configured to display a color image by scanning
I have. In FIG. 1A, reference numeral 114 denotes an electron gun.
The support means of the mask frame 110 is shown in FIG.
As shown in FIG.
Stud pin 115 attached to the center of the frame and frame 1
09 elastic support 11 fixed to the side surface near the center of each side
6 (Material: stainless steel or NM-15M alloy)
The elastic support 116 and the stud pin 115
Are detachably fitted. FIG. 1 (c) shows the mask
2 shows a configuration of a frame 110. The elastic support 116 is
So that it comes to a position where it can
Attached to each axis 109a and 109b of frame 109
Each is fixed by welding or the like via a slat 117.
The mounting plate 117 is attached to each shaft 109 of the frame 109.
a and 109b are directly welded and fixed respectively.
As shown in FIGS. 2A and 2B, the elastic support 116 is
Of each axis 109a and 109b of the mask frame 109
A fixing portion 201 fixed to the center by welding or the like,
A plane provided with a fitting hole 202 that fits into the pin 115
, A fixed part 201 and a fitting part 203
Inclined to connect the fixing portion 201 and the fitting portion 203 to each other.
And a connecting portion 204. Connecting portion 204
It is separated from the fitting part 203 by a bent part 207.
I have. However, in FIGS. 2A and 2B, the connecting portion 204 is
Although it is a flat surface, it may be a curved surface.
Form a number of parallel folds to form an enveloped curved surface
May be. The connecting portion 204 has a bush of the fitting portion 203.
In order to reduce the
A hole 205 for facilitating wearing may be formed. Mating
The part 203 and the connecting part 204 are integrated by bending.
And the inclined part 204 and the fixed part 201 are respectively
Are welded to each other (weld point
G is indicated by x). Further, the cathode ray tube 100
In the elastic support 116, the metal
At the point 209, place the elastic part 206 obtained by rolling the plate into a cylindrical shape.
And stud pins are fitted in the fitting holes 202.
When stud 115 is fitted, tip 1 of stud pin 115
15a comes into contact with the elastic portion 206.
Therefore, when the mask frame 110 vibrates in the tube axis direction,
(In the horizontal direction B1 in FIG. 1A, the upper and lower directions in FIG. 2B.
In the direction B2), the tip 115a of the stud pin 115
Friction with the elastic portion 206, the
The vibration energy of the arm 110 is converted into friction energy,
The vibration of the mask frame 110 is quickly attenuated. Ma
In addition, it vibrates in the plane direction of the mask 108 (perpendicular to B1).
Frame 109 pushes the elastic support 116
By pulling or pulling, the elastic support 116
To move the frame 109 back and forth in the pipe axis direction,
The same damping effect as described above can be obtained. This cathode ray tube 100
R, G, B, etc. built into a commercial television receiver
While displaying the single color image, the attached speed
Power is 10W and frequency is 70Hz ~ 15000Hz
No color shift was seen at all
Was. For further comparison, the cathode ray tube according to Embodiment 1
In addition to the elastic portion 206, the elastic portion 206
And has the same structure as cathode ray tube 100
A conventional cathode ray tube (1) (not shown)
As with the cathode ray tube 100 of
When vibration from the built-in speaker was applied,
Number: Color shift on the screen for vibration of 80 Hz to 130 Hz
Was found to occur. Also, stop speaker vibration
However, the color shift due to the vibration of the mask frame 110 is within several seconds.
Was seen continuously. Thus, the shadow according to the first embodiment is
In the pole tube 100, vibration from a speaker is applied.
When the mask frame 110 vibrates, the elastic support 1
The elastic portion 206 provided at the end of the stud pin 115
Rubs with the part 115a, and the friction reduces the vibration quickly.
It is considered that the color did not fade and no color shift occurred. here,
2 (a) and 2 (b) for all four elastic supports 116.
The ones shown were used, but only one of the four was used
And the rest can be achieved by using an elastic support without the elastic portion 206.
The same effect is obtained, and two or three figures
2 (a) and 2 (b), and the remaining
The same effect can be obtained by using a material without the elastic part 206.
can get. If the plate thickness of the fixing part 201 is 0.3 mm or more,
Good, preferably 1 mm or more, the upper limit of which is weight or material
It is 3 mm or less from the viewpoint of material cost. Also, the connecting portion 20
4 and the thickness of the fitting portion 203 is 0.3 mm or more and the fixed portion
It is preferable that the thickness is smaller than the thickness of 201.
Easily removes the mask frame 110 in the manufacturing process.
1 mm or less is good to obtain appropriate elasticity for wearing
No. The thickness of the elastic portion 206 is set in order to obtain appropriate elasticity.
Equal or equal to the plate thickness of the connecting portion 204 and the fitting portion 203
It is preferable that the thickness is 0.05 mm or less.
It is 0.3 mm or less. The cylinder of the elastic part 206 is
It may be closed or open. Also, in the first embodiment
Although 1,000 or more such cathode ray tubes 100 were manufactured,
Removal of the mask frame 110 in the body forming process
There was no wear trouble and the yield was 100%
Was. (Embodiment 2) In Embodiment 2 of the present invention, an embodiment
Elastic support in the configuration of the cathode ray tube 100 manufactured in state 1.
Instead of the body 116, the elastic support shown in FIGS.
A cathode ray tube using the body 116A was constructed. Embodiment
1 of FIGS. 2A and 2B.
Components that are the same as the components are given the same reference numerals.
I have. A detailed description of these will be omitted. Elastic support
The holding body 116A is elastic with respect to the elastic support body 116 of FIG.
The structure of the part is different. Elastic part of elastic support 116A
Reference numeral 301 denotes a bent metal plate formed into a leaf spring shape.
Are fixed to the fixing portion 201 by welding. Again in this case
Like the elastic support 116 shown in FIGS. 2A and 2B,
When the stud pin 115 is set in the fitting hole 202,
The tip portion 115a of the tod pin 115 pushes the elastic portion 301.
However, both are always in contact. Implementation
Similarly to the first embodiment, the cathode ray tube of the second embodiment is
Built into the vision receiver, adding vibration from the speaker
As a result, no color shift was observed. Elastic support 116
A fixing part 201, connecting part 204 and fitting part 203,
The thickness of the metal plate forming the elastic portion 301 is the same as that of the first embodiment.
Is the same as (Embodiment 3) In Embodiment 3 of the present invention, an embodiment
Elastic support in the configuration of the cathode ray tube 100 manufactured in state 1.
Instead of the body 116, the elastic support shown in FIGS.
A cathode ray tube using the body 116B was constructed. Embodiment
1 of FIGS. 2A and 2B.
Components that are the same as the components are given the same reference numerals.
I have. A detailed description of these will be omitted. Elastic support
The elastic portion 401 of the holding body 116B is formed by rolling a metal plate.
Two cylinders are welded to the fixed part 201 with the fitting hole 202 interposed
It was attached. In the elastic support 116B,
Set stud pin 115 (not shown) in fitting hole 202
Then, the outer surface 402 of the elastic portion 401 and the fitting portion 203
Is in contact with the inner surface 403. Follow
Then, the mask frame 110 (FIG. 1A) moves in the direction B2.
When vibrated (in the direction B2, the frame 109 (FIG. 1)
(A)) is the same direction as the vibration direction B1).
The inner surface 403 of the joint portion 203 is the outer surface of the elastic portion 401
402, and friction occurs at this point,
The vibration of the frame 110 is quickly attenuated. Also the mask
In the case of vibration in the plane direction of 108 (direction perpendicular to B1),
As described in the first embodiment, the mask frame 11
0 vibration is suppressed. As in the first embodiment, the embodiment
Incorporating the cathode ray tube of state 3 into a commercial television receiver
When color from the speaker is applied,
Was not. Embodiment with elastic support member 116B of the third embodiment
The elastic portions 206 and 301 of the first and / or second forms
When used in combination, the vibration of the mask frame 110 is increased.
The dynamic damping effect can be enhanced. In addition, fixed elastic part 401
Instead of being fixed to the part 201, the connecting part 204 or the fitting
The same effect can be obtained by welding and fixing to the joint 203. (Embodiment 4) In Embodiment 4 of the present invention, an embodiment
Elastic support in the configuration of the cathode ray tube 100 manufactured in state 1.
Instead of the body 116, the elastic support shown in FIGS.
A cathode ray tube using the body 116C was constructed. Embodiment
1 of FIGS. 2A and 2B.
Components that are the same as the components are given the same reference numerals.
I have. A detailed description of these will be omitted. Elastic support
The elastic portion 501 of the holding body 116C is formed of two metal plates.
Bend to a leaf spring and weld one end to the fixed part 201
These are fixed and attached to each other with the fitting hole 202 interposed.
Have been killed. In the elastic support 116C, a switch (not shown)
When the tod pin 115 is set in the fitting hole 202, it is fixed.
The outer surface 502 of the elastic portion 501 attached to the portion 201;
The inner surface 503 of the fitting portion 203
I have. Therefore, the mask frame 110 (FIG. 1A)
When vibrating in the direction of arrow B2 (direction B2
9 (FIG. 1 (a)) is the same direction as the vibration direction B1.
) And B2 when they vibrate in the direction perpendicular to
The inner surface 503 of the joint 203 is the outer surface 50 of the elastic portion 501.
2 causes friction in this area, causing mask flare
The vibration of the arm 110 is quickly attenuated. Same as the first embodiment
As described above, the cathode ray tube according to the fourth embodiment is connected to a commercially available television receiver.
When built into the image machine and added vibration from the speaker,
No color shift was observed. Elastic support 1 of Embodiment 4
The elastic portion 20 according to the first and / or second embodiment is provided at 16C.
6,301 combined with the frame 1
09 can be enhanced. (Embodiment 5) In Embodiment 5 of the present invention, an embodiment
Elastic support in the configuration of the cathode ray tube 100 manufactured in state 1.
An elastic support 116D shown in FIG.
The cathode ray tube used was constructed. FIG. 2 of the first embodiment
Components of elastic support body 116 described above in (a) and (b)
The same components as those described above are denoted by the same reference numerals. This
A detailed description of these will be omitted. 6 elastic support
In the body 116D, the fitting formed in the fitting portion 203
Make cuts 601a and 601b on both sides of the hole 202
I have. That is, it is fitted by the cuts 601a and 601b.
The joint portion 203 includes a central portion 602 including the fitting hole 202 and the central portion 602.
It is separated into left and right peripheral portions 603a and 603b.
Therefore, the mask frame 110 (FIG. 1A)
When vibrating in two directions and in a direction perpendicular to B2, the fitting portion 203
Between the central portion 602 and the peripheral portions 603a and 603b.
The difference between the cuts 601a and 601b
Rubbed on cut surface. This creates friction in this area,
The vibration of the frame 110 is quickly attenuated. Implementation
As in the case of the first embodiment, the cathode ray tube of the fifth embodiment is
Built into the vision receiver, adding vibration from the speaker
As a result, no color shift was observed. Bullet of Embodiment 5
Support 116D and Embodiment 1 and / or
Used in combination with the elastic portions 206 and 301 of the second embodiment.
The vibration damping effect of the frame 109 can be further enhanced
You. (Embodiment 6) In Embodiment 6 of the present invention, an embodiment
Elastic support in the configuration of the cathode ray tube 100 manufactured in state 1.
Elastic support shown in FIGS. 7A and 7B instead of the body 116
A cathode ray tube using the body 116E was constructed. Embodiment
1 of FIGS. 2A and 2B.
Components that are the same as the components are given the same reference numerals.
I have. A detailed description of these will be omitted. Elastic support
The holding body 116 </ b> E is folded toward the fitting portion 203 on the fixed portion 201.
The fixed part side bent parts 701 and 702 bent and projected
Provided on both sides, bent to the fixed part 201 side also in the fitting part 203
The fitting-portion-side bent portions 703 and 704 that are
It is configured to be provided on each side. Furthermore, those
The bent part of the fixed part side bent part 702 is the fitting part side.
Wrap the bent portion 704 and form the fixed portion side bent portion 702
The inner surface 711 and the outer surface 712 of the fitting portion side bent portion 704 are
In contact. On the other side, the fixed part side bent part
The fitting portion side bent portion 703 wraps 701 from outside and fixes it
Outer surface 713 of part-side bent part 701 and fitting part-side bent
The inner surface 714 of the part 703 is in contact. Therefore, the mask
The frame 110 (FIG. 1A) is
The direction perpendicular to the paper surface (the direction of arrow B2 in FIG.
(The direction perpendicular to arrow B2)
Inner surface 711 of bent portion 702 and fitting portion side bent portion 704
Outer surface 712 and outer surface 7 of fixed portion side bent portion 701
13 and inner surface 714 of fitting portion side bent portion 703 rub against each other
Therefore, friction occurs in these parts, and the mask frame 1
The vibration of 10 is quickly damped. Further, Embodiment 6
The elastic support 116E is packed in a cathode ray tube in a drop test.
When a strong external impact is applied, the elastic support 116E
To prevent large deformation of the
It works to control. This is because the fitting part 203 is expanded
When the elastic support 116E receives such an impact,
Tip bending section 70 provided at the tip of side folding section 702
5 hits the outer surface 715 of the fitting portion 203,
Suppress displacement. Further, the fitting portion 203 is pressed and shrunk.
When a strong shock is received, the root of the bent portion 703 on the fitting portion side
Bend fixed part on inner surface 716 of overhang part 706 provided in
The tip 717 of the fitting portion 701 hits and the displacement of the fitting portion 203 is reduced.
It suppresses. As in Embodiment 1, Embodiment
The cathode ray tube of No. 6 is installed in a commercially available television receiver,
No color shift was observed when vibration was applied from the speaker.
won. Also, place this television receiver at a predetermined height.
When it was dropped from each direction to check the color shift,
No color shift was observed. Repeat this test several times
However, the conventional elastic support shown in FIGS.
Unlike 1914, the bent parts move
It did not go away. Elastic supports of the first to sixth embodiments
The holding members 116A to 116E are connected to each other as shown in FIG.
Place it at the corner like the original elastic support 1914
Can also obtain the same effect as described above. However, this
If you want to attach to narrow corners,
It is necessary to reduce the area of 201. (Embodiment 7) FIG. 8A shows Embodiment 7 of the present invention.
Shows a cathode ray tube 800 according to FIG. FIG.
It is DD sectional drawing of (a). Is the cathode ray tube 800 flat?
Side wall portion 802 is provided around the effective display portion 801
Substantially rectangular panel 803 and a cylindrical neck
Enclosure consisting of 804 and funnel 805 on funnel
With a container. On the inner surface of the effective display section 801 of the panel 803
Is a three-color fluorescent light emitting blue (B), green (G) and red (R)
The phosphor screen 806, whose body is arranged two-dimensionally, is shaped
Is done. For this phosphor screen 806,
On the side, a number of electron beam passage holes (or slits) 80
7, a substantially rectangular mask 808 formed of a curved surface on which
Is attached to the frame 809.
It is supported by mask frame support means described later.
You. The long side 809a of the frame 809 has an L-shaped cross section.
Fe-Cr-molybdenum alloy, short side 809b is U-shaped
It is a square rod of Fe-Cr-molybdenum alloy bent to
They are firmly bonded by welding. Mask 808
Is fixed to both long sides 809a of the frame 809 by welding
It is in a state stretched between both long sides 809a
I have. Frame to shield external magnetic field such as geomagnetism
809 has an inner magnetic shield 811
You. On the other hand, an electron gun is placed in the neck 804 of the funnel 805.
814 are provided. Three electron beams from electron gun 814
Deflection yoke with 812 mounted outside funnel 805
Deflected by the magnetic field generated by the mask 813,
Horizontal and vertical scanning of the phosphor screen 806
To display a color image. The above
The support means of the frame 810 is as shown in FIG.
The inner surface of the side wall portion 802 of the panel 803 (FIG. 1A)
A stud pin 815 attached to the center of each side,
Elastic support fixed to the side of the center of each side of the frame 809
816, and the elastic support 816
815 is detachably fitted. FIG. 8C shows the mask mask.
The structure of the frame 810 is shown. The elastic support 816 is
A fitting hole to be described later is located at a position where the pin 815 can be properly fitted.
Each side 809a of the frame 809, so that 818 comes,
For welding etc. on the mounting plate 817 welded on 809b
More fixed. FIGS. 9A and 9B show elastic supports.
A front view and a plan view of the holding body 816 are shown. Minutes from this figure
As described above, the elastic support 816 is a strip-shaped plate (thickness: 1.2
mm) to bend the two bends 825 and 826
As a result, the fixing portion 81 welded to the mounting plate 817
9. A fitting hole 818 for fitting to the stud pin 815 is provided.
And the fixed portion 819 and the fitted portion 820
And a connecting portion 821 that connects the two. Also,
The elastic support 816 is made of a metal 822 having a large coefficient of thermal expansion (eg,
For example, stainless steel and small metal 823 (for example, Fe-N
Bimetal with i-alloy: Invar material) bonded together by welding
The structure is When the cathode ray tube 800 operates,
Frame 810 is heated and expanded by scanning
Then, the electron beam passage hole 807 and the phosphor screen 8
Misalignment of electron beam due to misalignment with 06
Occurs (this phenomenon is called doming)
At this time, since the temperature of the elastic support 816 also rises,
The position of the mask frame 810 is adjusted by the action of
Doming can be corrected. Connects to the fixed part 819
The connecting portion 821 is separated from the connecting portion 821 by a bent portion 825.
21 and the fitting portion 820 are separated by a bent portion 826
Have been. In some cases, the bent portion 826 is not provided.
However, in this case, it is classified as follows. Stud pin 8
15, when the fitting hole 818 is fitted to the elastic support 816,
Due to the elasticity of the mounting plate 817, the vicinity of the fitting hole 818 is substantially
(This area corresponds to the fitting portion 820)
The portion corresponding to the connecting portion 821 is the surface of the mounting plate 817.
(This region corresponds to the connecting portion 821)
Do). The elastic part 824 is formed by bending a metal plate to form a leaf spring.
With one end welded and fixed to the fixing part 819
In terms of arrangement, the fixing part 819 and the mounting plate 817
It has been sandwiched. The other end of the elastic portion 824 is the same as that shown in FIG.
As shown in (b), the stud pin 815 is
When set to 8, the tip 831 of the stud pin 815
You will always be in contact. Therefore, the mask frame 81
0 is the direction of the tube axis (the direction of arrow B1 in FIG.
When it vibrates in the direction perpendicular to the plane of FIG.
The tip 831 of the pin 815 rubs against the elastic portion 824
Therefore, the mask frame 810 (FIG. 8A)
The vibration energy of the
The vibration of the beam 810 is quickly attenuated. From this, the cathode
Vibration from the speaker was applied to the wire tube 800
At this time, even if the mask frame 810 vibrates, the elastic support 81
The elastic portion 824 provided at the end 6 of the stud pin 815
31 rubs, the vibration is quickly damped by the friction,
It is considered that no color shift occurred. Same as the first embodiment
As described above, the cathode ray tube according to the seventh embodiment is replaced with a commercially available television receiver.
When built into the image machine and added vibration from the speaker,
No color shift was observed. The thickness of the elastic support 816 is 1
mm or more, preferably 1.2 mm or more,
The upper limit is 3m in terms of practical spring coefficient and material cost.
m or less. In addition, the thickness of the elastic portion 824 is moderately elastic.
The thickness of the elastic support 816 should be smaller than
Preferably, preferably 0.05 mm or more and 0.5 mm or less
is there. The elastic portion 824 is, like the elastic support 816,
It may have a metal structure. Also, the cathode ray tube 800 is
000 or more were produced, but the phosphor formation process step
There is no detachment trouble of the mask frame 810
And the yield was 100%. Embodiment 8 In Embodiment 8 of the present invention, the embodiment
Elastic support in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
Instead of the body 816, the elastic support shown in FIGS.
A cathode ray tube using the holding body 816A was constructed. FIG.
(A) and the elastic support described above with reference to FIG. 9 (b)
The same reference numerals are used for the same components as the components in FIG.
Is attached. Detailed descriptions of these components
Is omitted. The elastic support 816A is provided as shown in FIG.
The structure of the elastic portion 901 with respect to the elastic support 816 of FIG.
Is different. Elastic part 901 in elastic support 816A
Is to bend a metal plate into a leaf spring shape and connect one end
It is welded and fixed to the welding point 902 of the joint 821.
is there. Also in this case, similarly to FIG.
15 is set in the fitting hole 818, the stud pin 81
5 pushes one end on the opposite side of the elastic portion 901,
Both are always in contact. Embodiment
Similarly to the first embodiment, the cathode ray tube of the eighth embodiment is replaced with a commercially available television.
Built-in receiver and vibration from speakers
At this time, no color shift was observed. (Embodiment 9) In Embodiment 9 of the present invention,
Elastic support in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
Instead of the body 816, the elastic support shown in FIGS.
A cathode ray tube using the holding body 816B was configured. FIG.
(A) and the elastic support described above with reference to FIG. 9 (b)
The same reference numerals are used for the same components as the components in FIG.
Is attached. Detailed descriptions of these components
Is omitted. The elastic support member 816B is formed as shown in FIG.
The structure of the elastic portion 1001 with respect to the elastic support 816 of FIG.
Structure is different. Elastic part 100 of elastic support 816B
1. One end of the metal plate is connected to the welding point 10 of the fitting portion 820.
02 is fixed by welding. Also in this case, FIG.
Set stud pin 815 in fitting hole 818
When the end 831 of the stud pin 815 is
01, so that they are always in contact.
You. Similarly to the first embodiment, the cathode ray tube of the ninth embodiment
Built into commercially available television receivers,
When vibration was applied, no color shift was observed. Implementation
In the first to ninth embodiments, the surface of the friction surface is the same as in the conventional example 2001.
The product is not large and the elastic part has the same shape as the elastic support
Is small, sliding occurs even with minute vibration, and the vibration control effect is high.
No. (Embodiment 10) In Embodiment 10 of the present invention,
Elasticity in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
Instead of the support 816, bullets shown in FIGS.
A cathode ray tube using the 816C was formed. FIG.
(A) and the elastic support described above with reference to FIG. 9 (b)
The same reference numerals are used for the same components as the components in FIG.
Is attached. Detailed descriptions of these components
Is omitted. The elastic support 816C is provided as shown in FIG.
The elastic portion 824 is not provided for the elastic support 816 of FIG.
In addition, a funnel-shaped sliding piece 1101 is provided in the fitting hole 818.
It is different in that In this case, stud pin 8
15 is set in the fitting hole 818, the stud pin 81
The sliding piece 1101 is in contact with and fitted to the side surface 832 of the fifth. Real
Similarly to Embodiment 1, the cathode ray tube of Embodiment 10 is commercially available.
Vibration from speakers built into TV receivers
, No color shift was observed. This is
The frame 810 (FIG. 8A) is in the tube axis direction (FIG. 8A).
The arrow B1 direction in (a), the paper in FIG.
When vibrated in the direction perpendicular to the plane), the stud pin 815
The side surface 832 and the sliding piece 1101 are rubbed, and the mask is quickly
This is probably because the vibration of the frame 810 was attenuated. What
The thickness of the sliding piece 1101 is the same as that of the elastic support member 816C.
It is preferably the same as the thickness. Also, the sliding piece 110
The length of one piece should be 0.5mm or more and 2.5mm or less.
Best, shorter is less effective, and conversely
If the sliding piece 1101 is longer than
The stud pin 815 was caught and deformed or damaged
Is not preferred. (Eleventh Embodiment) In an eleventh embodiment of the present invention,
Elasticity in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
Instead of the support 816, the bullet shown in FIGS.
A cathode ray tube using the non-crystalline support 816D was constructed. FIG.
(A) and the elastic support described above with reference to FIG. 9 (b)
The same reference numerals are used for the same components as the components in FIG.
Is attached. Detailed descriptions of these components
Is omitted. The elastic support 816D is connected to the fitting portion 820 or the link.
A shape in which the area of the fixing portion 819 is the largest compared to the connecting portion 821
Shape. That is, the area (S1) of the fixing portion 819 and the
(S2) of the connecting portion 821 and the surface of the fitting portion 820
The relationship of the product (S3) satisfies S1 ≧ S2 and S1 ≧ S3.
Add. In addition, the fixing portion 819 is attached to the mounting plate 81 by spot welding.
7, the welding point 1204 is indicated by a cross in the figure.
These welding points 1204 are bent at the fixing portion 819.
It is biased to the opposite side from the bend 825. That is, the welding area 12
01 to the center of the fixing portion 819
I came to the opposite side of 25. Same as in the first embodiment
The cathode ray tube according to the eleventh embodiment is replaced with a commercially available television receiver.
When built into the image machine and added vibration from the speaker,
No color shift was observed. Fixed in unwelded area 1202
Part 819 and the surface of the mounting plate 817 are in contact with each other.
The mask frame 810 (FIG. 8A) is in the tube axis direction.
(The direction of arrow B1 in FIG. 8A, and FIG. 13B
Vibrating in the direction perpendicular to the paper surface)
1202 generates friction between the fixing portion 819 and the mounting plate 817
It seems that the vibration of the mask frame 810 was attenuated.
It is. In order to confirm this, the entire fixing portion 819 is
A comparative cathode ray tube (2) using a welded elastic support
When fabricated and examined in the same manner, color misregistration occurred. Ma
In addition, even if speaker vibration is stopped,
The accompanying color shift was observed for several seconds or more. Furthermore, this
After operating the comparative cathode ray tube (2),
When we measured the landing deviation of the electron beam,
70 μm after 120 minutes from switch ON
Was. On the other hand, the elastic support 816D manufactured here was used.
A similar doming test was performed on the cathode ray tube.
After 120 minutes have passed since the switch was turned on,
Landing deviation was as small as 20 μm. This is a bullet
In a cathode ray tube using the elastic support 816D, the elastic support 8
Distance between 16D welding area 1201 and fitting hole 818
Is long, that is, the operating length of the bimetal is long,
The position of the frame 809 (FIG. 8A) even when the temperature rises
It seems that the correction was made. On the other hand, the comparative cathode
In the wire tube (2), the entire fixing portion 819 becomes a welding area.
The operating length of the bimetal was higher than that of the elastic support 816D.
And the position of the frame 809 was insufficiently corrected.
I think that the. Also, the elastic support 816D manufactured here is used.
In the same manner as in Embodiment 6 for a cathode ray tube using
When the package drop test was performed, no color shift occurred.
The upper limit of the area of the welding region 1201 is determined by the fixed portion 819.
Up to about 60% of the total area of
It is possible to achieve both the vibration control of the frame 809 and the doming correction.
The lower limit of the area of the welding region 1201 is approximately
Up to about 20%, if less, drop test
At 120 comes off the mounting plate 817
The case was seen. Note that the above effect is obtained by the short axis 809b
FIGS. 13 (a) and 13 (b) show only on (FIG. 8 (b)).
The elastic support 816D is arranged, and the long axis 809a (FIG. 8)
(B)) The area (S3) of the fitting portion 820 and the connecting portion 8
21 (S2) compared to the area (S2) of the fixing portion 819.
The same effect can be obtained by disposing an elastic support that is not as large as 1).
Obtained. Also, the elastic support of the short axis 809b and the long axis 809a
Is reversed (the elastic support 816 is attached to the long axis 809a).
D, the area (S3) of the fitting portion 820 on the short axis 809b or
The area of the fixing portion 819 is smaller than the area (S2) of the connecting portion 821.
(Even if an elastic support with a small product (S1) is arranged)
Effect was obtained. (Twelfth Embodiment) In a twelfth embodiment of the present invention,
Elasticity in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
13 in place of the support 816 as in the eleventh embodiment.
(A) A shade using an elastic support 816D shown in (b).
An arc tube was manufactured. The difference from the eleventh embodiment is that
In the support 816D, the area of the fixing portion 819 (S1)
And the area (S2) of the connecting portion 821 and the fitting portion 820
The relationship of the area (S3) satisfies S1 ≧ S2 ≧ S3.
It is a point that I am trying to do. In this case, as an example, S1
= 10cm2, S2 = 8.5cm2, S3 = 5cm2
(However, S3 does not include the fitting hole 818)
Was. Further, the occupation of the welding area 1201 in the fixing portion 819
The ratio was 40%. The elastic support 816D is shown in FIG.
As shown in (b), each side 809a, 8
A total of four pieces were arranged one by one at the approximate center of 09b. Also,
The weight of the mask frame 810 was approximately 4 kg.
A cathode ray tube using this elastic support 816D is commercially available.
Built in a revision receiver and conducted a package drop test
Later, when I displayed the R, G, B single color image
At this time, no color shift was observed. For further comparison
In addition, the elastic support 816D according to the twelfth embodiment is used.
Apart from the cathode ray tube, S1 =
4.5 cm2, S2 = 8.5 cm2, S3 = 5 cm2
And did not satisfy the relationship of S1 ≧ S2 ≧ S3.
Ray tube using elastic support 816D according to Embodiment 12
A conventional comparison tube (3) having the same structure as that of
Incorporated into a sales television receiver and conducted a package drop test.
Was. After that, display a single color image of each of R, G, B
I found that the color shift around the effective display area 801
And the landing deviation of the electron beam has occurred.
I understood. Thus, the elastic support according to Embodiment 12
In the cathode ray tube using the body 816D, strong external
When impact is applied, the mask frame 810 shakes greatly
A large force is applied to the fixing portion 819 of the elastic support 816D.
However, the welding of the fixing portion 819 may come off,
Plastic deformation of torsion occurs at the boundary between
The mask frame 810 is in the correct position
It is thought to be back. Therefore, the electron beam 812
There was no landing shift and no color shift was seen
Seem. On the other hand, in the conventional comparison tube (3), the fixing portion 819 is used.
May be removed, or the boundary between the fixing portion 819 and the inclined portion 821 may be removed.
Plastic deformation due to torsion in the boundary
Arm 110 cannot return to its original position, causing color misregistration.
It is considered that From the above results, it can be said that the cathode ray
When a strong impact is applied to the tube 800 from outside, the mask frame
The fixing portion 81 of the elastic support 816D is
9, a large force is applied, and the area (S1) of the fixing portion 819 is reduced.
This force is smaller than the area (S2) and the area (S3).
Welding cannot be performed or plastic deformation
The positional relationship between the mask 808 and the phosphor screen 806
Is easily displaced. Therefore, the area (S1) of the fixing portion 819 is changed
Area (S3) of the fitting portion 820 which is a component of the connecting portion 8
21 and the mask (S2).
Enough to maintain strength against the weight of frame 810
Increasing the electron beam 812 against external impact
Is important in preventing landing deviation
It can be said that. In the fixing portion 819 of the elastic support 816D
The mask is used as a guide to the necessary area from one aspect.
Total area of fixing portion 819 with respect to weight of frame 810
(In the case of FIGS. 8A and 8B, 10 cm 2 × 4
Pieces = 40 cm 2), that is, the mask frame 810
There is an area of the fixing portion 819 per unit weight. Even with this value
Looking at the above cathode ray tube, it is approximately 5cm2 / kg
If less than 10 cm2 / kg, it is not preferable.
If there is no excessive force, the misalignment of the electron beam
No color misregistration occurs due to binding. (Thirteenth Embodiment) In a thirteenth embodiment of the present invention,
Elasticity in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
13 in place of the support 816 as in the eleventh embodiment.
(A) A shade using an elastic support 816D shown in (b).
An arc tube was manufactured. The difference from the eleventh embodiment is that
In the support 816D, the area of the fixing portion 819 (S1)
And the area (S2) of the connecting portion 821 and the fitting portion 820
Area (S3) is S1 = 5 cm2 and S2 = 5, respectively.
cm2, S3 = 2.5 cm2 (however, S3 is a fitting hole 81
8 is not included). Fixed surface
The product (S1), the area of the connecting portion (S2) and the fitting portion
The relationship of the area (S3) is as follows: S1 ≧ S2 and S1 ≧ S3
To be satisfied. The thickness of the elastic support 816D is 1.2 mm,
The weight of the frame at this time was 4 kg. Embodiment
Similarly to the twelfth embodiment, the cathode ray tube of the thirteenth embodiment is
The same drop test was conducted by incorporating it into a vision receiver.
Color misalignment due to mislanding of the electron beam
I couldn't see it. Further, the fixing portion 819 and the mounting plate 81
Before welding, rub the welding surface of No. 7 with a press or a file.
After making irregularities and scratches by welding, etc.
No color misregistration was observed even in a drop test with higher acceleration.
It turned out. The difference in unevenness is 10 μm to 500 μm
A range is preferred. In this case together with Embodiment 12,
Also, fixing the mask frame 810 per unit weight
Considering the area of the part 819, this value is preferable.
5 cm2 / kg or more, more preferably 10 c
m2 / kg or more. (Embodiment 14) In Embodiment 14 of the present invention,
Elasticity in the configuration of the cathode ray tube 800 manufactured in Embodiment 7.
Instead of the support 816D, the elastic support 81 shown in FIG.
A cathode ray tube using 6E was constructed. FIG. 9 (a) and
Configuration of elastic support 816 described above with reference to FIG.
Elements that are the same as the elements have the same reference numbers.
You. Detailed descriptions of these components are omitted.
You. In the elastic support 816E, the area (S
1) and the area (S2) of the connecting portion 821 and the fitting portion 8
The area (S3) of 20 satisfies the relationship S1 ≧ S2 ≧ S3.
S1 = 7 cm2, S2 = 8 cm2, S3 =
5cm2 (however, S3 is an area not including the fitting hole 818)
There is). However, the fixing portion 81 of the elastic support 816E
A bent portion 130 in which the end of No. 9 is bent toward the mounting plate 817 side
1 is formed, and this bent portion 1301 is attached.
In the state where it is inserted into the insertion hole 1302 provided in the plate 817,
The fixing portion 819 and the mounting plate 817 are bonded by welding.
Was. The thickness of the elastic support 816E is 1.3 mm.
The weight of the frame 809 was 10 kg. Implementation form
As in the twelfth embodiment, the elastic support 816E of the fourteenth embodiment is used.
Of a cathode ray tube using a TV into a commercial television receiver
And a similar drop test was performed.
No color shift due to landing was observed at all. This
The bent portion 130 is formed on the elastic support 816E as in the case of FIG.
When 1 is provided, the relationship S1 ≧ S2 ≧ S3 is not satisfied.
Even with this, resistance to impact can be increased. Also, insert
After inserting the bent portion 1301 into the entrance hole 1302,
Bend 1301 is bent in the direction parallel to mounting plate 817
Then, the bent portion 1301 and the mounting plate 817 are fused.
By contact, the impact resistance is further improved. (Embodiment 15) In Embodiment 15 of the present invention,
In the configuration of the cathode ray tube 800 manufactured in Embodiment 12,
The elastic support 816F shown in FIGS.
On the short axis 809b (FIG. 8B) instead of the support 816D
The cathode ray tube used for was constructed. 9 (a) and 9
Components of elastic support 816 described above with reference to (b)
The same components as those described above are denoted by the same reference numerals. This
A detailed description of these components will be omitted. Elasticity
In the support 816F, the area (S1) of the fixing portion 819 and the
(S2) of the connecting portion 821 and the surface of the fitting portion 820
The product (S3) satisfies the relationship S1 ≧ S2 ≧ S3, and
S1 = 9.5 cm2, S2 = 9 cm2, S3 = 3.4
cm2 (however, S3 is an area not including the fitting hole 818)
). The welding point 1401 is indicated by x. in this way,
A welding point 1401 is provided closer to the end than the center of the fixing portion 819.
Was. In addition, a stainless steel stage with a large coefficient of thermal expansion
The length of the pressure region 822 is
The length is made longer than the material region 823. This
Thus, the elongation of the stainless steel region 822 due to the temperature rise
Length of stainless steel area 822 and invar material area 823
Is larger than when both are the same.
Good doming correction can be expected. On the other hand, the long axis 809a
(FIG. 8B) does not satisfy the relationship S1 ≧ S2 ≧ S3.
S1 = 7cm2, S2 = 8cm2, S3 = 3.4cm
Two elastic supports 816F were arranged. Again, stainless steel
The length of the less area 822 is compared with the length of the invar material area 823.
And the welding point 1401 is also fixed
19 was located at the end from the center. Also, the elastic support 816
The plate thickness of F is 1.2 mm in all types.
The weight of the frame 809 at the time was 4 kg. Implementation form
Similarly to the state 1, the elastic support 816F of the fifteenth embodiment is
Incorporate the used cathode ray tube into a commercial television receiver
When color from the speaker is applied,
Was not. Also, 120 minutes after the switch is turned on
Landing deviation of the electron beam is as small as 15 μm.
It was good. In addition, a package drop test was performed.
Color misregistration caused by mislanding
Was. (Embodiment 16) In Embodiment 16 of the present invention,
Elasticity in the configuration of the cathode ray tube 100 manufactured in Embodiment 1.
Instead of the support 116, the bullet shown in FIGS.
A cathode ray tube using the ionic support 116F was constructed. Elasticity
The support 116F is viewed from the side as shown in FIG.
Then, it has a V-shaped structure. This is a color receiver
Mask by electron beam scanning during operation of picture tube 100
When the frame 110 is heated and expanded, the frame 109
By pushing the elastic support 116F toward the side wall 102,
The electron beam passage hole 107 and the phosphor screen 106
Misalignment of the electron beam
Automatically adjust the position of the mask frame 110 to prevent
To save. 16 (a) and 16 (b)
In 116F, the area (S1) of the fixed portion 1501 and the connection
Area (S2) of connecting portion 1504 and surface of fitting portion 1503
The products (S3) are S1 = 22.5 cm2 and S2 =
4.5cm2, S3 = 5cm2 (However, S1 is frame
109b or the area in contact with the mounting plate 117,
S2 is an area not including the hole 1505, and S3 is a fitting hole.
502 is not included). Fixed area
(S1) and area of connecting part (S2) and surface of fitting part
The relationship of the product (S3) satisfies S1 ≧ S2 and S1 ≧ S3.
Add. The plate thickness of the fixing part 1501 is 1 mm,
4 and the thickness of the fitting portion 1503 were 0.5 mm. Ma
The weight of the mask frame 110 (FIG. 1A) is 6.
It was 4 kg. Frame 109 or mounting plate 11
The welding point 1511 with No. 7 is indicated by x in the figure. Welding poi
Port 1511 is connected to the end 1506 on the side opposite to the connecting portion 1504.
Biased to the side. As in Embodiment 1, Embodiment 16
Of a cathode ray tube using an elastic support member 116F of a commercial television
Built in John receiver and added vibration from speaker
However, no color shift was observed. This is the fixed part 15
01 and the frame 1 in the unwelded area
09 (109a, 109b) and the mask
Probably because the vibration of the frame 110 attenuated quickly
You. In addition, the cathode ray tube 100 manufactured here is actually
When a package drop test was performed in the same manner as in Embodiment 6,
No color shift occurred. For further comparison, the color receiver
Apart from the picture tube 100, S1 =
7.5cm2, S2 = 8.0cm2, S3 = 6.5cm
2 and the rest is completely based on the elastic support 116 according to the sixteenth embodiment.
Comparison tube having the same structure as cathode ray tube 100 using F
(4) was prepared and, similarly to the cathode ray tube 100 described above, a commercially available
It was incorporated into a television receiver and a drop test was performed. So
After that, I tried to display R, G, B single color images
However, color shift is seen around the effective display section 101,
It turns out that the landing deviation of the beam has occurred
Was. In addition, even if the plate thickness of the fixing portion 1501 is 1 mm or more,
The same effect as described above is obtained, and the connecting portion 1504 and the fitting portion
Even if the thickness of 1503 is 0.3 mm to 0.9 mm,
The same effect can be obtained. (Embodiment 17) In Embodiment 17 of the present invention,
Using elastic support body 116F manufactured in Embodiment 16
In the configuration of the wire tube 100, as shown in FIGS.
Area (S1) of fixing portion 1501 of elastic support 116F
Is changed by 5cm2 in the range of 5cm2 ~ 20cm2
10 cathode ray tubes were manufactured under each condition.
Similarly to Embodiment 16, the cathode ray tube of Embodiment 17 is commercially available.
Built in a television receiver and performed the same drop test
Was. Table 1 summarizes the results.

[Table 1] From the results of Table 1 and the sixteenth embodiment, when the area (S1) of the fixed portion 1501 is 7.5 cm2 or less, the rate of occurrence of color misregistration is high, and when it is 10 cm2 or more, the rate of occurrence of color misregistration is 10% or less. Therefore, it can be seen that there is no problem if it is 15 cm2 or more. The area required for the fixing portion 1501 of the elastic support body 116F is the same as in the twelfth embodiment,
It is evaluated as the ratio of the total area of the fixing portion 1501 to the weight of the mask frame 110 (S1 × 4 in the case of FIG. 1B), that is, the area of the fixing portion 1501 per unit weight of the mask frame 110. In view of this, since the weight of the mask frame 110 is 6.4 kg, it can be said that the weight is preferably about 5 cm 2 / kg or more, more preferably 10 cm 2 / kg or more from the results of Table 1 and Embodiment 16. By using this as a guideline, it is possible to determine an appropriate area of the fixing portion even for a mask frame having an arbitrary weight. (Eighteenth Embodiment) In an eighteenth embodiment of the present invention, the elastic support shown in FIGS. 17A and 17B is used instead of the elastic support 116 in the configuration of the cathode ray tube 100 manufactured in the first embodiment. A cathode ray tube using 116G was constructed. FIG.
6, the same components as those of the elastic support body 116F described above with reference to FIG. A detailed description of these will be omitted. Elastic support 116
G, as can be seen from the side view of FIG.
Has a flat plate-shaped fixing portion 1601 including a connecting portion 1504 and a portion 1601A to be welded at a welding point 1601 to the elastic support member 116F, and has a wedge-like shape when viewed from the side. However, the weight of the mask frame 110 was 8 kg. 17 (a) and 17 (b)
16G, similarly to the seventeenth embodiment,
01 in the range of 5 cm 2 to 20 cm 2
Twenty cathode ray tubes 100 changed by cm 2 were manufactured under each condition, and the cathode ray tube of the eighteenth embodiment was assembled into a commercially available television receiver in the same manner as in the seventeenth embodiment, and a similar drop test was performed. . Table 2 shows the results.

[Table 2] Even in the wedge-shaped elastic support 116G, the area of the fixing portion 1601 occupying a unit weight of the mask frame 110 is preferably about 5 cm2 / kg or more, more preferably 7.5 cm2 / kg or more. . (Embodiment 19) In Embodiment 19 of the present invention, the cathode ray tube sample N shown in Table 1 manufactured in Embodiment 17 is used.
o. The area S1 of the fixing portion 1501 used in Step 4 is 10 cm.
In the second elastic support 116F, 20 cathode ray tubes using the elastic support 116H shown in FIG. 18 having the bent portions 1701 provided on both sides of the fixed portion 1501 were produced. FIG.
As shown in FIG. 8, the bent portion 1701 of the elastic support 116H is inserted into an insertion hole 1702 provided in the mounting plate 117, and the bent portion 1701 is bent outward or inward in a direction parallel to the mounting plate 117. And the mounting plate 117 are welded. Separately, the fixing portion 1501 and the mounting plate 117 are fixed by welding. The elastic support 116 shown in FIG.
H is used only for the long side 109a (FIG. 1B) of the frame 109 using the mounting plate 117, and is used for the short side 109b.
(FIG. 1 (b)) shows the elastic support 116F used in the seventeenth embodiment (FIG. 16 (a)) having no bent portion 1701.
It was used. Twenty cathode ray tubes 100 are used in the seventeenth embodiment.
When the drop test was performed in the same manner as in
%Met. (Embodiment 20) Four sides 809a and 809b of the cathode ray tube 800 using the elastic support 816D shown in FIGS. 13A and 13B manufactured in Embodiments 11 to 13
By changing the spring coefficient or the distance between the stud pin 815 and the frame 809 with respect to the elastic support 816D of FIG. 8 (b), the stud pin 815 is inserted into the elastic support 816D through the fitting hole 818. Was set differently for each of the four sides of the elastic support 816D.
However, the pushing force did not protrude from a range of 5N (Newton) or more and 100N or less. If it is smaller than 5N, the fitting between the stud pin 815 and the fitting hole 818 is unstable, and if it exceeds 100N, the shape of the frame 809 is affected, which is not good. Similarly to the first embodiment, the cathode ray tube of the twentieth embodiment is incorporated in a commercially available television receiver, and when vibration from a speaker is applied, the frame 809 is compared with a case where the pressing force is equal on all four sides.
The vibration amplitude was small. This phenomenon occurs because the internal forces of the elastic supports 816D are also different due to the different pushing forces on the four sides, and as a result, the resonance frequency of each elastic support 816D is different.
It is considered that the vibration was attenuated in 6D, and resonance with the frame 809 became difficult to occur. As a method of distributing the pressing force, as described above, the four-sided elastic support 8 is used.
In addition to the case where the elastic support 816D is completely different in 16D, the pressing force between the elastic support 816D on the long axis 809a and the elastic support 816D on the short axis 809b may be made different. In the latter case, the elastic support 816 on the short axis 809b
When the pressing force of D is 1.1 to 3 times larger than the pressing force of the elastic support 816D on the long axis 809a, the torsional vibration of the frame 809 is less likely to occur, which is effective. Further, in order to set the pressing force within the above range, the spring coefficient of the elastic support 816D should be 1 N / mm or more and 25 N / mm.
The following ranges are desirable. If it is smaller than 1 N / mm, the rigidity of the elastic support 816D is too small, and the strength for locking the frame 809 cannot be maintained. On the other hand, if it exceeds 25 N / mm, the rigidity is too high, which causes a problem in the production process. (Embodiment 21) Also in the cathode ray tube 100 manufactured in Embodiments 16 and 19, the stud pin 115 has the elastic support 116F (FIG. 16) as in Embodiment 20.
(A)) The force pressing the 116H (FIG. 18) and the frame 10
When the vibration of No. 9 was examined, the same result as in the twentieth embodiment was obtained. In Embodiments 1 to 21, the materials of the mask body, the frame, and the elastic support are not limited to those described above, and needless to say, the same effects can be obtained with other metals. Further, the number of elastic supports attached to the frame is not limited to four, but may be three or five or more. Further, the mounting position may be on the frame, and is not limited to the center or the corner. The number of the plate-like elastic portions does not need to be one, and a large number may be laminated. Further, it is not limited to a planar shape, and may include a curved surface. Also, the mask 108,
808 may be not only a conventional press mask or aperture grill, but also a shadow mask that is led by tension between the long axes 109a of the frame 109. In the case of a stretched shadow mask 1801, it is more effective to install a damper 1802 for attenuating the vibration of the mask 1801 at the end of the mask 1801 as shown in FIG.
In the drawing, reference numeral 1804 denotes a long axis of the frame, and 1805 denotes a short axis of the frame. The elastic support is omitted for convenience of explanation. The damper 1802 is obtained by opening a hole 1803 at the end of the shadow mask 1801 and passing a wire through it. Further, the temperature of the mask rises rapidly during the operation of the cathode ray tube, but the temperature rise of the damper 1802 has a slight time delay. Therefore, it is preferable to use a material having a larger thermal expansion coefficient than the material of the mask 1801 for the damper 1802. In order to make the damper 1802 work effectively, the mask 1
It is necessary to increase the amplitude of the vibration of the shadow mask 801. Therefore, it is desirable that the shadow mask 1801 has a tension distribution in which the tension is largest at the center and becomes smaller toward the edge of the mask 1801. FIG. 1 (a),
In order to suppress the temperature rise of the masks 108 and 808 shown in FIG.
Even if a material having a large mass number such as i (bismuth) is coated to reflect an electron beam that does not pass through the holes 107 and 807, the doming phenomenon can be reduced. The electron guns 114 and 81 shown in FIGS. 1 (a) and 8 (a)
Although a hot cathode is generally used as the cathode used in 4, the effect of the present invention is more remarkably exhibited when a field electron emitting element (cold cathode) cathode capable of narrowing the electron beams 112 and 812 is used. Because the smaller the electron beam diameter, the higher resolution image can be displayed, and the higher the resolution, the more vibration resistance and drop impact resistance are required. This is because it becomes impossible to suppress the displacement. On the other hand, according to the invention of the present application, it was confirmed that even when the cold cathode electron gun was used, no color misregistration was observed by the vibration and the package drop test. Mo, Nb, W, S
Spindt-type or tower-type ones whose emitters are made of materials such as i, SiC, etc., carbon nanotubes, graphite nanofibers,
Carbon-based emitters such as diamond and carbon fiber, and emitters having a negative electron affinity such as aluminum nitride (AlN) are used. As can be seen from the above description, the cathode ray tube of the present invention does not suffer from color misregistration due to mislanding of the electron beam even when external vibration or strong impact is applied.

As described above, according to the present invention, it is possible to provide a cathode ray tube having no landing deviation of the electron beam and no color deviation even when external vibration or strong impact is applied.

[Brief description of the drawings]

FIG. 1A is a diagram schematically showing the entire configuration of a color picture tube according to a first embodiment of the present invention; FIG. 1B is a diagram showing a support structure of a mask frame according to the first embodiment; FIG. 1 shows the structure of the mask frame in FIG.

FIG. 2A is a diagram schematically illustrating an elastic support according to the first embodiment of the present invention; FIG. 2B is a side view illustrating a state of fitting of the elastic support according to the first embodiment;

FIG. 3A is a diagram schematically illustrating an elastic support according to a second embodiment of the present invention; FIG. 3B is a side view illustrating a state of fitting of the elastic support according to the second embodiment;

4A is a diagram schematically illustrating an elastic support according to a third embodiment of the present invention. FIG. 4B is a side view illustrating a state of fitting of the elastic support according to the third embodiment.

5A is a diagram schematically illustrating an elastic support according to a fourth embodiment of the present invention. FIG. 5B is a side view illustrating a state of fitting of the elastic support according to the fourth embodiment.

FIG. 6 is a diagram schematically showing an elastic support according to a fifth embodiment of the present invention.

7A is a diagram schematically showing an elastic support according to a sixth embodiment of the present invention. FIG. 7B is a side view of the elastic support according to the sixth embodiment.

8A is a diagram schematically showing the entire configuration of a color picture tube according to a seventh embodiment of the present invention. FIG. 8B is a diagram showing a mask frame support structure according to the seventh embodiment. 7 shows the structure of the mask frame in FIG.

9A is a diagram schematically illustrating an elastic support according to a seventh embodiment of the present invention. FIG. 9B is a diagram illustrating a state of fitting of the elastic support according to the seventh embodiment from above.

10A is a diagram schematically illustrating an elastic support according to an eighth embodiment of the present invention. FIG. 10B is a diagram illustrating a state of fitting of the elastic support according to the eighth embodiment from above.

11A is a diagram schematically illustrating an elastic support according to a ninth embodiment of the present invention. FIG. 11B is a diagram illustrating a state of fitting of the elastic support according to the ninth embodiment from above.

FIG. 12A is a diagram schematically showing an elastic support according to the tenth embodiment of the present invention;

13A is a diagram schematically showing an elastic support in the embodiments 11 to 13 and 20 of the present invention. FIG. 13B is an upper view showing a state of fitting of the elastic support in the embodiments 11 to 13 and 20. Figure shown more

FIG. 14 is a perspective view of an elastic support according to a fourteenth embodiment of the present invention.

15A is a diagram schematically showing an elastic support according to the fifteenth embodiment of the present invention. FIG. 15B is a diagram showing a state of fitting of the elastic support according to the fifteenth embodiment from above.

FIG. 16 (a) is a diagram schematically showing an elastic support in Embodiments 16 to 17 and 21 of the present invention. (B) A side view showing a state of fitting of the elastic support in Embodiments 16 to 17 and 21. Figure shown more

17A is a diagram schematically illustrating an elastic support according to an eighteenth embodiment of the present invention. FIG. 17B is a side view illustrating a state of fitting of the elastic support according to the eighteenth embodiment.

FIG. 18 is a diagram schematically showing an elastic support in Embodiments 19 and 21 of the present invention.

FIG. 19 is a schematic view of a damper installed at an end of a mask according to a twenty-first embodiment of the present invention.

20A is a diagram schematically showing the entire structure of a color picture tube according to the related art; FIG. 20B is a diagram illustrating a mask frame support structure according to the related art;

21A is a diagram schematically showing the entire configuration of another color picture tube according to the prior art; FIG. 21B is a diagram showing the supporting structure of another mask frame according to the prior art;

22A is a bottom view schematically showing a conventional elastic support; FIG. 22B is a front view schematically showing a conventional elastic support; FIG. 22C is a schematic view showing a conventional elastic support. Side view

FIG. 23 (a) is a perspective view schematically showing another elastic support according to the prior art. (B) is a cross-sectional view schematically showing another elastic support according to the prior art.

[Explanation of symbols]

101,801 Effective display section 102,802 Side wall section 103,803 Panel 104,804 Neck 105,805 Funnel 106,806 Phosphor screen 107,807 Electron beam passage hole 108,808 Mask 109,809 Frame 110,810 Mask frame 115 , 815 Stud pin 116, 816 Elastic support 100, 800 Cathode ray tube 201, 819, 1501 Fixing part 202, 818, 1502 Fitting hole 203, 820, 1503 Fitting part 204, 821, 1504 Connecting part 206, 301, 401 , 501,824,901,1
001 Elastic part 1101 Sliding piece 601 Cut 701, 702 Fixed part side bent part 703, 704 Fitting part side bent part 705 Tip bent part 706 Overhang part 1201 Welded area 1202 Unwelded area 1301, 1701 Folded part 1302, 1702 Insertion hole 1802 damper

Continuing on the front page (72) Inventor Tatsuaki Watanabe 1006 Kazuma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Toshifumi Nakatani 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.F-term ( Reference) 5C031 BB04 BB07 BB08 BB09 BB11

Claims (86)

[Claims] 1. A mask frame comprising: an electron gun for emitting an electron beam; a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes; and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits, the panel includes a stud pin that supports the frame, and the frame includes the stud pin and At least one of the elastic supports includes a fitting portion having a fitting hole formed to fit the stud pin, and an elastic portion in contact with the stud pin. Is a cathode ray tube which rubs against the stud pins so that when the mask frame vibrates, a frictional force for damping the vibration of the mask frame is generated. 2. The cathode ray tube according to claim 1, wherein the stud pin has a tip, and the elastic portion rubs against the tip. 3. The cathode ray tube according to claim 1, wherein the elastic portion is formed by rolling a metal plate into a cylindrical shape. 4. The cathode ray tube according to claim 1, wherein the elastic portion has a leaf spring shape obtained by bending a metal plate. 5. The cathode ray tube according to claim 1, wherein the elastic support further includes a fixing part fixing the elastic support to the frame, and the elastic part is fixed to the fixing part. 6. The cathode ray tube according to claim 5, wherein said fitting portion is provided on an opposite side of said frame with respect to said fixing portion. 7. The cathode ray tube according to claim 6, wherein the elastic portion is provided between the fitting portion and the fixing portion. 8. The cathode ray tube according to claim 5, wherein the elastic support further includes a connecting portion connecting the fixed portion and the fitting portion. 9. The relationship among the plate thickness (t0) of the fixed portion, the plate thickness (t1) of the connecting portion, and the plate thickness (t2) of the elastic portion satisfies the relationship of t0> t1 and t0 ≧ t2. The cathode ray tube according to claim 8, wherein 10. The thickness (t0) of the fixed portion, the thickness (t1) of the connecting portion, and the thickness (t2) of the elastic portion.
9. The cathode ray tube according to claim 8, wherein the relationship of (1) satisfies the relationship of t0> t1 and t1 ≧ t2. 11. The cross section of the elastic support is substantially V
The cathode ray tube according to claim 1, which has a letter shape. 12. The cathode ray tube according to claim 1, wherein the elastic support has a substantially band-shaped plate shape. 13. The cathode ray tube according to claim 1, wherein the elastic support further includes a connecting part connecting the fixing part and the fitting part, and the elastic part is fixed to the connecting part. 14. The cathode ray tube according to claim 1, wherein the elastic portion is fixed to the fitting portion. 15. The cathode ray tube according to claim 1, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the major axis. 16. The cathode ray tube according to claim 1, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the minor axis. 17. The frame has corners, and the resilient supports are located at each of the corners.
The cathode ray tube according to claim 1. 18. The cathode ray tube according to claim 1, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 19. The cathode ray tube according to claim 1, wherein the electron gun includes a field emission device that narrows the electron beam. 20. The elastic support has a bimetal structure in which a first metal having a first coefficient of thermal expansion and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion are joined. Item 7. A cathode ray tube according to Item 1. 21. The cathode ray tube according to claim 20, wherein a longitudinal length of the first region made of the first metal is longer than a longitudinal length of the second region made of the second metal. 22. The cathode ray tube according to claim 20, wherein the first metal includes stainless steel, and the second metal includes nickel steel. 23. A mask frame including an electron gun for emitting an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits, the panel includes a stud pin that supports the frame, and the frame includes the stud pin and An elastic support that fits therein, at least one of the elastic supports includes a fitting portion in which a fitting hole that fits with the stud pin is formed, and the fitting portion is formed in the fitting hole. And each of the surfaces of the sliding piece has a stud such that when the mask frame vibrates, a frictional force is generated to attenuate the vibration of the mask frame. Side and rub against each other cathode-ray tube of the pin. 24. The cathode ray according to claim 23, wherein the elastic support further includes a fixing portion fixing the elastic support to the frame, and a connecting portion connecting the fixing portion and the fitting portion. tube. 25. The cathode ray tube according to claim 24, wherein the length of the sliding piece is 0.5 mm or more and 2.5 mm or less. 26. The cathode ray tube according to claim 23, wherein the elastic support has a substantially band-shaped plate shape. 27. The cathode ray tube according to claim 23, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 28. The cathode ray tube according to claim 23, wherein the electron gun includes a field emission device that narrows the electron beam. 29. A mask frame including an electron gun for emitting an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits. The panel includes a stud pin that supports the frame. An elastic support that fits therein, at least one of the elastic supports includes a fitting portion in which a fitting hole that fits with the stud pin is formed, and the fitting portion includes the fitting hole; A central portion, a first peripheral portion separated from the central portion by a first cut, and a second peripheral portion separated from the central portion by a second cut formed on the opposite side of the central portion from the first cut. 2 around and The cut surface on the first cut side of the central portion is formed on the first cut portion of the first peripheral portion so that when the mask frame vibrates, a frictional force that attenuates the vibration of the mask frame is generated. The second cut portion of the central portion is rubbed with the cut surface facing the second peripheral portion so that when the mask frame vibrates, a frictional force that attenuates the vibration of the mask frame is generated. A cathode ray tube which rubs against a cut surface facing the second cut of the above. 30. The cathode ray according to claim 29, wherein the elastic support further includes a fixing portion for fixing the elastic support to the frame, and a connecting portion for connecting the fixing portion and the fitting portion. tube. 31. A cross section of the elastic support is substantially V
30. The cathode ray tube according to claim 29, having a U-shape. 32. The cathode ray tube according to claim 29, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 33. The cathode ray tube according to claim 29, wherein the electron gun includes a field emission device that narrows the electron beam. 34. A mask frame including an electron gun for emitting an electron beam, a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits, the panel includes a stud pin that supports the frame, and the frame includes the stud pin and At least one of the elastic supports includes a fitting portion formed with a fitting hole that fits with the stud pin, and a fixing portion that fixes the elastic support to the frame. The fixing portion has first and second bent portions bent toward the fitting portion side, and the fitting portion is bent so as to contact the first bent portion. A lower portion, and a fourth bent portion which is bent so as to contact with the second bent portion, the first bent portion, when the mask frame vibrates,
When the mask frame vibrates, the second bent portion rubs against the third bent portion so as to generate a frictional force that attenuates the vibration of the mask frame.
A cathode ray tube that rubs against the fourth bent portion so as to generate a frictional force that attenuates the vibration of the mask frame. 35. The cathode ray tube according to claim 34, wherein the elastic support further includes a connecting portion connecting the fixing portion and the fitting portion. 36. A cross section of the elastic support is substantially V
35. The cathode ray tube according to claim 34, having a U-shape. 37. The first bent portion has a fifth bent portion formed so as to suppress displacement of the fitting portion in a direction opposite to the fixed portion, and the second bent portion has 35. The cathode ray tube according to claim 34, further comprising a sixth bent portion formed to suppress displacement of the fitting portion in the direction of the fixing portion. 38. The cathode ray tube according to claim 34, wherein the frame has corners, and the elastic supports are arranged at each of the corners. 39. The cathode ray tube according to claim 34, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the major axis. 40. The cathode ray tube according to claim 34, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the minor axis. 41. The cathode ray tube according to claim 34, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 42. The cathode ray tube according to claim 34, wherein the electron gun includes a field-emission element for narrowing the electron beam. 43. A mask frame including an electron gun for emitting an electron beam, a mask formed with a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits. The panel includes a stud pin that supports the frame. At least one of the elastic supports includes a fitting portion formed with a fitting hole that fits with the stud pin, and a fixing portion that fixes the elastic support to the frame. An area of the fixing part (S1) and an area of the connecting part (S2).
And a relationship between the area of the fitting portion (S3) and S1 ≧ S2 and S1 ≧ S3. 44. An unevenness is formed on a first surface of the fixing portion in contact with the frame, and an unevenness is formed on a second surface of the frame in contact with the fixing portion, wherein the first surface and the second surface are provided. The cathode ray tube according to claim 43, wherein? Is fixed by welding. 45. The cathode ray tube according to claim 43, wherein the frame includes a mounting plate for fixing the fixing portion. 46. An unevenness is formed on a first surface of the fixing portion in contact with the mounting plate, and an unevenness is formed on a second surface of the mounting plate in contact with the fixing portion. The cathode ray tube according to claim 45, wherein the two surfaces are fixed by welding. 47. The fixing part includes a welding area fixed to the frame by welding, and the welding area is arranged on a side opposite to the connecting part with respect to a center part of the fixing part. 43. The cathode ray tube according to 43. 48. The area (S1) of the fixing part, the area (S2) of the connecting part, and the area (S3) of the fitting part.
44. The cathode ray tube according to claim 43, wherein the relationship satisfies S1 ≧ S2 ≧ S3. 49. The cathode ray tube according to claim 43, wherein the fixing portion has a bent portion bent toward the frame. 50. A cross section of the elastic support is substantially V
The cathode ray tube according to claim 43, wherein the cathode ray tube has a V-shape. 51. The cathode ray tube according to claim 43, wherein the elastic support has a substantially band-shaped plate shape. 52. The ratio of the total area of the fixed portions of the elastic support to the weight of the frame is 5 cm 2.
44. The cathode ray tube according to claim 43, which is not less than / kg. 53. The cathode ray tube according to claim 43, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the major axis. 54. The cathode ray tube according to claim 43, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the minor axis. 55. The cathode ray tube according to claim 43, wherein the frame has corners, and the elastic supports are disposed at each of the corners. 56. The elastic support has a bimetal structure in which a first metal having a first coefficient of thermal expansion and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion are joined. Item 44. The cathode ray tube according to Item 43. 57. The cathode ray tube according to claim 43, wherein a longitudinal length of the first region made of the first metal is longer than a longitudinal length of the second region made of the second metal. 58. The cathode ray tube according to claim 43, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 59. The cathode ray tube according to claim 43, wherein the electron gun includes a field emission device for narrowing the electron beam. 60. A mask frame comprising: an electron gun for emitting an electron beam; a mask having a plurality of holes or slits through which the electron beam emitted from the electron gun passes; and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits. The panel includes first and second stud pins that support the frame. Includes first and second elastic supports respectively fitted with the first and second stud pins, and wherein the first stud pin presses the first elastic support.
A cathode ray tube in which a pressing force and a second pressing force with which the second stud pin presses the second elastic support are substantially different. 61. The cathode ray tube according to claim 60, wherein the first pressure and the second pressure are not less than 5 N (Newton) and not more than 100 N (Newton). 62. The cathode ray tube according to claim 60, wherein the first and second elastic supports have a spring coefficient of 1 N / mm or more and 25 N / mm or less. 63. The cathode ray tube according to claim 60, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the major axis. 64. The cathode ray tube according to claim 60, wherein the frame includes a pair of major axes and a pair of minor axes, and the elastic support is disposed at least on the minor axis. 65. The cathode ray tube according to claim 60, wherein the frame has corners, and the elastic supports are arranged at each of the corners. 66. The elastic support body has a bimetal structure in which a first metal having a first coefficient of thermal expansion and a second metal having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion are joined. Item 70. The cathode ray tube according to Item 60. 67. The cathode ray tube according to claim 60, wherein a longitudinal length of the first region made of the first metal is longer than a longitudinal length of the second region made of the second metal. 68. A cross section of the elastic support having a substantially V
61. The cathode ray tube according to claim 60, having a U-shape. 69. The cathode ray tube according to claim 60, wherein the elastic support has a substantially band-shaped plate shape. 70. The cathode ray tube according to claim 60, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 71. The cathode ray tube according to claim 60, wherein the electron gun includes a field emission device for narrowing the electron beam. 72. A mask frame including an electron gun for emitting an electron beam, a mask formed with a plurality of holes or slits through which the electron beam emitted from the electron gun passes, and a frame on which the mask is mounted. A panel formed with a phosphor layer that is scanned by the electron beam that has passed through the plurality of holes or the slits, the panel includes a stud pin that supports the frame, and the frame includes the stud pin and At least one of the elastic supports includes a fitting portion having a fitting hole formed to fit the stud pin, and an elastic portion in contact with the fitting portion. A cathode ray tube, wherein the elastic portion rubs against the fitting portion such that when the mask frame vibrates, a frictional force for attenuating the vibration of the mask frame is generated. 73. The cathode ray tube according to claim 72, wherein the elastic portions are arranged on both sides of the fitting hole. 74. The cathode ray tube according to claim 72, wherein the elastic portion is formed by rolling a metal plate into a cylindrical shape. 75. The cathode ray tube according to claim 72, wherein the elastic portion has a leaf spring shape obtained by bending a metal plate. 76. The cathode ray tube according to claim 72, wherein the elastic support further includes a fixing part fixing the elastic support to the frame, and the elastic part is fixed to the fixing part. 77. A cross section of the elastic support is substantially V
73. The cathode ray tube according to claim 72, having a U shape. 78. The cathode ray tube according to claim 72, wherein the mask includes a damper provided at an end of the mask to attenuate vibration of the mask. 79. The cathode ray tube according to claim 72, wherein the electron gun includes a field emission device for narrowing the electron beam. 80. An image display device using the cathode ray tube according to claim 1. 81. An image display device using the cathode ray tube according to claim 23. 82. An image display device using the cathode ray tube according to claim 29. 83. An image display device using the cathode ray tube according to claim 34. 84. An image display device using the cathode ray tube according to claim 43. 85. An image display device using the cathode ray tube according to claim 60. 86. An image display device using the cathode ray tube according to claim 72.