CN100521058C - Colour displaying tube - Google Patents
Colour displaying tube Download PDFInfo
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- CN100521058C CN100521058C CNB2005100964239A CN200510096423A CN100521058C CN 100521058 C CN100521058 C CN 100521058C CN B2005100964239 A CNB2005100964239 A CN B2005100964239A CN 200510096423 A CN200510096423 A CN 200510096423A CN 100521058 C CN100521058 C CN 100521058C
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Abstract
The present invention discloses a color picture tube which comprises a fluorescent screen, a conical body which is matched with the fluorescent screen, and a shadow mask and a frame component which arThe color-television tube includes fluorescent screen and matched cone. Shadow mask and frame subassembly are installed inside fluorescent screen. The frame subassembly is connected to inner magnetic e arranged on the inner side of the fluorescent screen, wherein the frame component is also connected with an inner magnetic shield, and a deflection coil is arranged outside the conical body. The secshade. Deflection coil is installed outside the cone. Section of the deflection coil is ellipse or rectangle. Two sets of electron gun are setup inside tail end of cone horizontally. Included angle betion of the deflection coil is in an ellipse or a rectangle, and two groups of electron guns are horizontally arranged in the tail end of the conical body. An included angle of the two groups of the etween two sets of electron gun is about 50-60 degrees. R, G, B three sub guns of each set of electron gun are arranged in horizontally or vertically. When sub guns are arranged in horizontally, phosphlectron guns is between 50 and 60 DEG. Sub guns of the two groups of the electron guns are horizontally or vertically arranged, and three sub guns R, G and B of each group of the electron guns are horor strips in three colors are arranged vertically. When sub guns are arranged in vertically, phosphor strips in three colors are arranged horizontally. Two sets of electron gun are adopted in the inveizontally or vertically distributed in a shape like the Chinese character 'yi'. When the sub guns of the two groups of the electron guns are horizontally arranged, fluorescent strips in three colors antion so as to make maximum deflection range of electron beam reach to 150-160 degrees. Comparing with prior art, the invention provides shorter color-television tube and better display effect. re arranged vertically. When the sub guns of the two groups of the electron guns are vertically arranged, the fluorescent strips in the three colors are horizontally arranged. The present invention uses the two groups of the electron guns so that the range of the maximum deflection of electron beams reaches between 150 and 160 DEG. Compared with the traditional structure, the length of the whole picture tube of the present invention is shortened, and the better effect of display is guaranteed.
Description
Technical field
The present invention relates to a kind of color picture tube, particularly a kind of color picture tube that is applied to the demonstration of color television set image.
Background technology
Color picture tube is very ripe as its technology of a kind of display device and manufacturing process, and the picture quality of demonstration is best in the various so far display devices, and the tool advantage of cost performance, has therefore obtained extensive use in a lot of fields.The greatest drawback of this product is that length is long at present, and volume is big, occupy bigger space.In recent years, flat-panel display device such as liquid crystal display, plasma has been obtained great achievement, its powerful market advances and cost reduction trend has proposed severe challenge to color picture tube, makes its defective more apparent outstanding, so slimming will be the key technology of color picture tube life cycle continuity.One of effective way that shortens picture tube length is exactly to increase deflection angle, and along with the increase of deflection angle, pipe range almost is linearity and reduces, and deflection angle progressively increases from the earliest 36 ° in history, generally maintains at present in 90 °～110 °.More the picture tube technology of large deflection angle obtains breaking through recently, has occurred the picture tube TV of 125 ° of deflection angles on the market, and the total length of picture tube tradition shortens 1/3.Yet further increasing deflection angle will make electron beam produce serious defocusing when scanning, the definition that spot definition becomes the ambassador image border reduces greatly, and deflection power and geometric distortion increase, though taked some technical cue, its image quality, still less than conventional picture tube, will face great technical difficulty as colorimetric purity, brightness uniformity, unit white field homogeneity and distortion etc. so will further increase deflection angle shortening total length.Moreover the structural limitations of conventional picture tube its length further shorten.
Summary of the invention
The purpose of this invention is to provide a kind of color picture tube, can further shorten the total length of color picture tube, guarantee better display effect, improve the resolution of color picture tube, realize ultra-thinization.
Technical scheme of the present invention is achieved in that a kind of color picture tube, comprise that phosphor screen reaches the cone of phase configuration with it, in fluorescent screen inside shadow mask and frame assembly are installed, on frame assembly, also be connected with inner magnetic screen, outside in cone is equipped with deflecting coil, the cross section of described deflecting coil is ellipse or rectangle, and horizontal arrangement has two electron gun groups in the cone tail end.
Angle between the two electron gun groups is between 50 °～60 °.
Sub-rifle horizontal positioned of electron gun group or vertical the placement, the R of promptly every electron gun group (red), G (green), the horizontal yi word pattern of three sub-rifles of B (indigo plant) distribute or vertical yi word pattern distributes.
During the sub-rifle horizontal positioned of electron gun group, R (red), G (green), B (indigo plant) three fluorescence vermicelli vertical arrangement.
When the sub-rifle of electron gun group was vertically placed, R (red), G (green), B (indigo plant) three fluorescence vermicelli were horizontal.
The present invention adopts two electron gun groups, its slanted angle is between 50 °～60 °, the maximum deflection scope of electron beam can be reached between 150 °～160 °, and it is more to adopt the present invention that picture tube homogeneous tube length is shortened than traditional structure, and can guarantee better display effect.
The present invention makes picture tube under the constant situation of display area, and length shortens greatly, thereby has reduced the occupied space of picture tube.Characteristics of the present invention are electron gun groups that tradition is placed vertically, with and two electron gun groups of axioversion angle horizontal positioned between 25 °～30 ° replace, angle between the two electron gun groups is between 50 °～60 °, wherein each electron gun group constitutes by R, G, three sub-rifles of B, and two electron gun groups are carried out deflection scanning by same deflecting coil to R, G, the B electron beam that each sub-rifle produces.Because such formation, so adopted heavy caliber high efficiency ellipse or square-section deflecting coil, and adopted about video pictures the scanning technique of separating amalgamation, as utilize the video wall Display Technique to realize, the scanning that is whole image is divided into left and right sides two parts, and promptly electron gun group in the left and right sides is controlled the scanning of corresponding picture part separately respectively by same auto-convergence magnetic deflection field.Adopt the present invention make electron beam in scanning process on the screen angle increase greatly than tradition, help obviously improving the luminous point pattern and the focusing performance of electron beam, and then improve the definition of image, satisfy the requirement of high definition TV; Adopt the present invention to help improving the geometric distortion of image simultaneously; And further increased deflection angle than traditional ultra-thin pipe, and having shortened the homogeneous tube total length, the maximum deflection scope of electron beam can reach 150 °～160 °, and keeps good visual display quality.
In sum, adopt the picture tube thickness of the present invention's design thinner, volume is littler, display quality is higher, not only helps bringing into play the advantage of CRT, and can enhancing and the competitiveness of Display Techniques such as liquid crystal, plasma.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a loop construction schematic diagram of the present invention;
Fig. 3 (a) is the sub-rifle of the present invention schematic cross-section when vertically placing;
Fig. 3 (b) is the sub-rifle of the present invention scanning theory figure when vertically placing;
Schematic cross-section when Fig. 4 (a) is the sub-rifle horizontal positioned of the present invention;
Scanning theory figure when Fig. 4 (b) is the sub-rifle horizontal positioned of the present invention;
Below in conjunction with accompanying drawing content of the present invention is described in further detail.
Embodiment
With reference to shown in Figure 1, the present invention includes phosphor screen 1 and reach the cone 2 of phase configuration with it, in phosphor screen 1 installed inside shadow mask 7 and frame assembly 6 are arranged, on frame assembly 6, also be connected with inner magnetic screen 8, in the outside of cone 2 deflecting coil 5 is installed, the cross section of described deflecting coil 5 is ellipse or rectangle, and horizontal arrangement has angle between two electron gun groups, 3,4, the two electron gun groups 3,4 between 50 °～60 ° in the cone tail end.
With reference to shown in Figure 2, the cross section of described deflecting coil 5 is ellipse or rectangle.
With reference to Fig. 3 (a) (b) shown in, (32 ") super slight type color picture tube is an example; the electron gun inclination angle is 53 °; range of deflection is 150 °; three sub-rifle vertical distribution of two electron gun groups 3,4; red green blue phosphor strip is horizontal, the distance between the two electron gun groups 3,4 are determined that by the angle between the two electron gun groups 3,4 and the length of electron gun group the distance between 3,4 outlets of two electron gun groups is 57mm with 76cm.
Operation principle: the electron beam that electron gun group 3 and electron gun group 4 emit is through being installed in the scan deflection of the heavy caliber high efficiency square-section deflecting coil 5 on the cone 2, beat at along continuous straight runs behind the look by selecting of the molded aperture mask 7 that supports by framework 6 and to be coated with on the phosphor screen 1 of redgreenblue fluorescent material 9, demonstrate good, white field of colour purity and even brightness image then.
In order to satisfy the operation principle of this picture tube, the phosphor strip 9 of picture tube is horizontal, each sub-rifle vertical arrangement of two electron gun groups 3,4, the conditional request of auto-convergence will be satisfied in the magnetic field of deflecting coil 5, electron beam 10 has adopted vertical scanning technique, utilize the video wall Display Technique to realize, help image handing-over amalgamation like this, obtain whole uniform images full frame.
Scanning theory: earlier by signal processing circuit with a complete video pictures signal segmentation, as utilize technology such as video wall demonstration to realize, become left and right sides two parts and include corresponding scan-synchronized signal, when scanning the left side of phosphor screen 1, left side picture signal drives electron gun group 3 work earlier, electron gun group 4 by, electron beam 10 begins to scan downward vertically from the upper left side of phosphor screen 1, when electron gun group 3 is finished the scanning of left picture, electron gun group 3 by and trigger right picture signal and drive electron gun group 4 and carry out scanning work, electron beam 10 begins to scan downward vertically from phosphor screen 1 upper center, up to the right picture end of scan, promptly finishes the demonstration of piece image.
With reference to Fig. 4 (a) (b) shown in, (32 ") super slight type color picture tube is an example; the electron gun inclination angle is 53 °; range of deflection is 150 °; three sub-rifle horizontal positioned of two electron gun groups; red green blue phosphor strip vertical arrangement, the distance between the two electron gun groups 3,4 are determined that by the length of angle between the two electron gun groups 3,4 and electron gun group 3,4 distance between 3,4 outlets of two electron gun groups is 57mm with 76cm.
Operation principle is, the electron beam 10 that electron gun group 3 and electron gun group 4 emit is through being installed in the scan deflection of the heavy caliber high efficiency square-section deflecting coil 5 on the cone 2, by the molded aperture mask 7 that supports by framework 6 select look after beat on the phosphor screen 1 that vertically is coated with redgreenblue fluorescent material 9, demonstrate good, white field of colour purity and even brightness image then.
In order to satisfy the operation principle of this picture tube, phosphor strip 9 vertical arrangements of picture tube, the horizontal word order of each sub-rifle of two electron gun groups 3,4, the conditional request of auto-convergence will be satisfied in the magnetic field of deflecting coil 5, electron beam 10 has adopted the horizontal sweep technology, utilize the video wall Display Technique to realize, help image handing-over amalgamation like this, obtain whole uniform images full frame.
Scanning theory: earlier by signal processing circuit with a complete video pictures signal segmentation, as utilize technology such as video wall demonstration to realize, become left and right sides two parts and include corresponding scan-synchronized signal, when scanning the left side of phosphor screen 1, left side picture signal drives electron gun group 3 work earlier, electron gun group 4 by, electron beam 10 begins to scan to central horizontal from the upper left side of phosphor screen 1, when electron gun group 3 scans phosphor screen 1 center, electron gun group 3 by and trigger right picture signal and drive electron gun group 4 and carry out scanning work, electron beam 10 scans to the right from phosphor screen 1 center, thereby finishes the demonstration of delegation's TV signal; After 4 scannings of electron gun group are finished, begin to trigger left picture signal control electron gun group 3 again and carry out next line scanning, multiple scanning in this way is up to the demonstration of finishing piece image.
Dual mode is because the electron-baem spot astigmatism direction that deflection field causes is different, and preceding a kind of method may make luminous point elongate in the horizontal direction, and then a kind of method may make luminous point elongate in vertical direction.Because the scanning technique of having separated about having adopted utilizes the video wall Display Technique to realize.It is many to adopt wherein any method that the swash width of electron beam 10 is shortened than conventional picture tube, so can reduce the electron-baem spot astigmatism greatly, helps improving display resolution.
More than two embodiment, two electron gun group horizontal sextant angles are 53 °, range of deflection is 150 °, the electron beam drift value of color picture tube is in 10 μ, brightness uniformity is consistent with conventional picture tube, the homogeneous tube total length shortens more than 50%.So adopt the present embodiment color picture tube, not only reduce the electron beam drift value of picture tube greatly, improve the colorimetric purity of slimming color picture tube, improved the slimming color picture tube at full frame brightness uniformity and unit white field homogeneity, the homogeneous tube total length shortens greatly simultaneously.
Claims (5)
1, a kind of color picture tube, comprise that phosphor screen (1) reaches the cone of phase configuration (2) with it, in phosphor screen (1) installed inside molded aperture mask (7) and framework (6) assembly are arranged, in the outside of cone (2) deflecting coil (5) is installed, it is characterized in that, the cross section of described deflecting coil (5) is ellipse or rectangle, dispose the first gun group (3) and the second electron gun group (4) in cone (2) tail end behind deflecting coil (5), the angle between first, second electron gun group (3,4) is between 50 °～60 °.
2, a kind of color picture tube according to claim 1 is characterized in that, electron gun group (3,4) horizontal positioned or vertical the placement, and promptly every group of electron gun red (R), green (G), the horizontal yi word pattern distribution of blue (B) three-color electron beam or vertical yi word pattern distribute.
3, according to claim 1 or 3 described a kind of color picture tubes, it is characterized in that, during the sub-rifle horizontal positioned of electron gun group, R (red), G (green), B (indigo plant) three fluorescence vermicelli vertical arrangement.
According to claim 1 or 3 described a kind of color picture tubes, it is characterized in that 4, when the sub-rifle of electron gun group was vertically placed, R (red), G (green), B (indigo plant) three fluorescence vermicelli were horizontal.
5, a kind of color picture tube according to claim 1 is characterized in that, also is connected with inner magnetic screen (8) on framework (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100964239A CN100521058C (en) | 2005-11-25 | 2005-11-25 | Colour displaying tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100964239A CN100521058C (en) | 2005-11-25 | 2005-11-25 | Colour displaying tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1776879A CN1776879A (en) | 2006-05-24 |
| CN100521058C true CN100521058C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100964239A Expired - Fee Related CN100521058C (en) | 2005-11-25 | 2005-11-25 | Colour displaying tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100521058C (en) |
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2005
- 2005-11-25 CN CNB2005100964239A patent/CN100521058C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1776879A (en) | 2006-05-24 |
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Granted publication date: 20090729 Termination date: 20131125 |