CN100418180C - Cathode ray tube - Google Patents
Cathode ray tube Download PDFInfo
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- CN100418180C CN100418180C CNB2005100811252A CN200510081125A CN100418180C CN 100418180 C CN100418180 C CN 100418180C CN B2005100811252 A CNB2005100811252 A CN B2005100811252A CN 200510081125 A CN200510081125 A CN 200510081125A CN 100418180 C CN100418180 C CN 100418180C
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- ray tube
- cathode ray
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- 238000010894 electron beam technology Methods 0.000 claims abstract description 39
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000219546 Damnacanthus major Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
- H01J29/073—Mounting arrangements associated with shadow masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/861—Vessels or containers characterised by the form or the structure thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0722—Frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/86—Vessels and containers
- H01J2229/8613—Faceplates
- H01J2229/8616—Faceplates characterised by shape
- H01J2229/862—Parameterised shape, e.g. expression, relationship or equation
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
A cathode ray tube in which an opening defined by an edge of a bottom wall of a frame has longer-axis, shorter-axis, and diagonal axis widths appropriately determined in accordance with a distance from a deflection center of a panel to an edge of a skirt of the panel, in order to eliminate problems such as an electron beam shielding phenomenon and a halation phenomenon.
Description
Technical field
The present invention relates to a kind of cathode ray tube, and more particularly, relate to a kind of like this cathode ray tube, wherein have major axis, minor axis and the diagonal axis width of suitably determining according to distance, to eliminate such as electron beam shielding phenomenon and the such problem of halation from the deflection center of panel to edge, panel skirt section by the edge limited opening of framework diapire.
Background technology
Below with reference to Fig. 1 existing cathode ray tube is described.
Fig. 1 is the sectional view of the structure of the existing cathode ray tube of explanation.As shown in Figure 1, existing cathode ray tube comprises panel 1, funnel 2, shadow mask 3, screen 4, deflecting coil 5, framework 6, spring 7 and inner shield 8.
Explanation now has the operation of the cathode ray tube of said structure.Propagate from electron gun electrons emitted Shu Chaoxiang panel 1, and afterwards by the deflecting coil 5 vertical and deflections flatly of the neck that is positioned at funnel 2.
The electron beam process that is deflected runs through the groove that shadow mask 3 forms, and arrives at the fluorescent surface that is coated on the screen 4.Fluorescent surface uses the energy of electron beam luminous, thus duplicating image.
Be included in the framework 6 supporting shadow masks 3 in the cathode ray tube equally.Spring 7 tightly is assembled together the inner surface of framework 6 with panel 1.
If electron beam is subjected to outside influence of geomagnetic, the propagation path deflection of electron beam so, thus the colorimetric purity of the image that duplicates reduces.The inner shield 8 that is included in the cathode ray tube is used to reduce influence of geomagnetic.
Recently, cathode ray tube has been developed into has slim-lined construction, to improve its competitiveness.Yet, because the structural instability of this elongated cathode ray tube increases so their quality must be compared existing situation.Especially, thus shape between framework and the panel is inconsistent because the structure of cathode ray tube and the problem that takes place therein are included in, halation and the phenomenon that forms shade in electron beam conductively-closed during the overscan operation on the panel screen.
Especially, halation and the phenomenon that forms shade because the electron beam shielding takes place during the overscan operation on the panel screen are subjected to the influence of the structure of the sidewall of framework 6 and diapire.
The diapire of framework 6 extends with the state of a bending edge from the sidewall of framework 6, makes diapire be arranged essentially parallel to panel 1.In the diapire of framework 6, define opening.From electron gun electrons emitted bundle propagation passing through opening.The propagation path of electron gun may disturb framework 6 according to the diapire width of framework 6.For example, have the situation of excessive or too small width at the diapire of framework 6, electron beam can clash into framework 6, thereby forms shade on screen.That is, electron beam screen phenomenon takes place.When electron beam clashes into the inner surface of framework 6, also can be owing to halation take place the secondary electron that generates.
Especially, be applied in the situation of elongated cathode ray tube at framework 6, the structure of design framework 6 suitably, because compare with general cathode ray tube, elongated cathode ray tube has the deflection angle of increase.Yet because existing elongated cathode ray tube uses the framework with existing structure, as mentioned above, they have the problem that is caused by electron beam screen phenomenon or halation.
Summary of the invention
The problem that consideration takes place in above-mentioned prior art, make the present invention, and an object of the present invention is to provide a kind of cathode ray tube, wherein have major axis, minor axis and the diagonal axis width of suitably determining according to distance, to eliminate such as electron beam shielding phenomenon and the such problem of halation from the deflection center of panel to edge, panel skirt section by the edge limited opening of framework diapire.
According to an aspect, the invention provides a kind of cathode ray tube, it comprises: panel, link to the panel rear end funnel, be formed with a plurality of grooves to carry out for the shadow mask of the color selection function of electron beam and to be used to support the framework of shadow mask, wherein: framework comprises sidewall and diapire, shadow mask is soldered to sidewall, and diapire extends from sidewall with state crooked in framework; And cathode ray tube satisfies condition " 1.80≤Dx/L≤2.52 ", wherein " L " representative on the direction that is parallel to the central shaft of panel (z), the distance from the deflection center of cathode ray tube to edge, panel skirt section; And " Dx " representative is on the direction that is parallel to major axis (x), the distance from the central shaft (z) of panel to the framework bottom wall edge.
According to another aspect of the present invention, cathode ray tube satisfy condition " 0.90≤Dy/L≤1.41 ".Wherein " Dy " representative is on the direction that is parallel to minor axis (y), the distance from the central shaft (z) of panel to the framework bottom wall edge.
According to another aspect of the present invention, cathode ray tube satisfy condition " 1.99≤Dd/L≤3.04 ".Wherein " Dd " representative is on the direction that is parallel to diagonal axis (d), the distance from the central shaft (z) of panel to the framework bottom wall edge.
The diapire of framework can have crooked at a predetermined angle edge, and is most advanced and sophisticated to form reflection.In this case, preferably cathode ray tube satisfies specified conditions, to prevent the halation that is caused from the secondary electron that reflects most advanced and sophisticated reflex time and generate by electron beam.
Just, cathode ray tube satisfy condition " 0.80≤θ x/ β x≤0.90 ", wherein " θ x " represents deflection angle, electron beam is with the reflecting surface along major axis (x) extension at the reflection tip of this deflection angle bump framework, and " β x " represents the angle of formation between the central shaft (z) of line that the major axis reflecting surface most advanced and sophisticated perpendicular to reflection extends and panel.
Cathode ray tube also satisfy condition " 0.65≤θ y/ β y≤0.85 ".Wherein " θ y " represents deflection angle, electron beam is with the reflecting surface along minor axis (y) extension at the reflection tip of this deflection angle bump framework, and " β y " represents the angle of formation between the central shaft (z) of line that the minor axis reflecting surface most advanced and sophisticated perpendicular to reflection extends and panel.Cathode ray tube also satisfy condition " 0.80≤θ d/ β d≤0.95 ".Wherein " θ d " represents deflection angle, electron beam is with the reflecting surface along diagonal axis (d) extension at the reflection tip of this deflection angle bump framework, and " β d " represents the angle of formation between the central shaft (z) of line that the diagonal axis reflecting surface most advanced and sophisticated perpendicular to reflection extends and panel.
Especially, have the situation of slim-lined construction for the cathode ray tube of application framework, framework can represent desired effects.For this reason, on the direction that is parallel to face plate center axle (z), the distance (L) from the deflection center of cathode ray tube to edge, panel skirt section satisfy condition " 92mm≤L≤144mm ".
Description of drawings
By following detailed description, in conjunction with the accompanying drawings, will know above purpose of the present invention and further feature and advantage more, wherein:
Fig. 1 is the sectional view of the structure of the existing cathode ray tube of explanation;
Fig. 2 is the sectional view of explanation according to the part of cathode ray tube of the present invention;
Fig. 3 is the perspective view of framework, and major axis, minor axis and the diagonal axis of framework has been described;
Fig. 4 is a perspective view, and the opening that forms in the framework that comprises in cathode ray tube according to the present invention and opening each width along major axis, minor axis and the diagonal axis of framework has been described;
Fig. 5 is the partial cross section figure according to cathode ray tube of the present invention, has explained by the most advanced and sophisticated electron beam path of determining of reflection;
Fig. 6 is the schematic diagram of explanation according to the elongated property of cathode ray tube of the present invention; And
Fig. 7 is a schematic diagram, and the cross section that is applied to according to the coil of the funnel of cathode ray tube of the present invention has been described.
Embodiment
Below, the exemplary embodiment according to cathode ray tube of the present invention is described with reference to the accompanying drawings.In the following description, components identical refers to identical title and is represented by identical Reference numeral.
Fig. 2 is the sectional view of explanation according to the part of cathode ray tube of the present invention.Fig. 3 is the perspective view of framework, and major axis, minor axis and the diagonal axis of framework has been described.Fig. 4 is a perspective view, and the opening that forms in the framework that comprises in cathode ray tube according to the present invention and opening each width along major axis, minor axis and the diagonal axis of framework has been described.
As shown in Figure 2, cathode ray tube according to the present invention comprises: panel 1, the screen 4 that forms on the inner surface of panel 1, the shadow mask 3 that is formed with a plurality of grooves and framework 6.Fig. 2 has illustrated the cross section of the cathode ray tube that obtains along the direction that is parallel to the major axis of cathode ray tube.
In Fig. 2, " z " represents the central shaft of panel 1, and it extends through the center of panel and the deflection center n of panel 1.The skirt section is from effective screen portions vertical extent of panel 1, extends from the edge, skirt section when making the central shaft z square crossing of line and panel when line is being parallel on the direction of major axis x of panel 1, and the central shaft z of line and panel meets at a m.
In this case, the distance definition from deflection center n to a m is " L ".
On the direction that is parallel to major axis x, the distance definition from the central shaft z of panel 1 to the edge of the diapire 6b of framework 6 is " Dx ".In Fig. 2, " θ " represents the deflection angle of electron beam through a certain groove of shadow mask 3.
As shown in Figure 3, framework 6 is a rectangular shape substantially, has major axis x, minor axis y and diagonal axis d.Major axis x is the axle that is parallel to the long limit extension of framework 6, and minor axis y is the axle that is parallel to the minor face extension of framework 6, and diagonal axis d is the axle that extends between two relative turnings of framework 6.
As shown in Figure 4, framework 6 has the opening that extends along the long limit of framework 6 and minor face that limits within diapire 6b.Axle x, the y and the d of framework 6 intersect at the center of opening o.
The center o of opening is positioned on the central shaft z of panel 1.As shown in Figure 4, distance definition from the central shaft z of panel 1 to the edge of the diapire 6b of framework 6 on the direction that is parallel to minor axis y is " Dy ", and the distance definition from the central shaft z of panel 1 to the edge of the diapire 6b of framework 6 is " Dd " on the direction that is parallel to diagonal axis d.
Correspondingly, depend on the variation in major axis, minor axis and the diagonal axis width of diapire 6b respectively by major axis, minor axis and the diagonal axis width of the fixed opening of the margin of diapire 6b and change.
In order to make that cathode ray tube can undistorted ground reproduced image, the width of the diapire 6b of design limiting opening suitably, electron beam passes this opening.For example, electron beam shielding phenomenon or halation can take place in the situation in that the diapire 6b of framework 6 has excessive or widths too small.
Especially, have the situation of slim-lined construction at cathode ray tube, compare with general cathode ray tube, along the central shaft z of panel 1, the distance L between the edge, skirt section of deflection center n and panel 1 reduces.Correspondingly, in this case, must suitably design at distance D x, the Dy and the Dd that are parallel on each the direction from the central shaft z of panel 1 to the edge of the diapire 6b of framework 6.Reference table 1 is described.
Table 1
It is relevant that the value that provides in the table 1 and cathode ray tube are of a size of 32 inches situation.These values can be applied to the cathode ray tube of other size (for example 28～32 inches), to produce desired effects.
In having the existing cathode ray tube of general structure rather than slim-lined construction, be about 240mm along the distance L of central shaft z between the edge in deflection center n and panel skirt section of panel, as given in the table 1.Yet in elongated cathode ray tube according to the present invention, distance L is about 92mm in the situation of example 1, and is about 144mm in the situation of example 4.
Have in the situation of slim-lined construction at cathode ray tube, the deflection angle of electron beam increases.Correspondingly, in this situation, must depend on the distance L of cathode ray tube, be increased on each the direction that is parallel to framework, distance D x, Dy and Dd from the central shaft z of panel to the framework bottom wall edge.
In order to obtain the desired width of elongated cathode ray tube split shed, the situation of example 1, be confirmed as 232.0mm, 130.0mm and 279.5mm at distance D x, the Dy and the Dd that are parallel on each the direction of framework from the central shaft z of panel to the framework bottom wall edge, in the situation of example 4, be confirmed as 259.0mm, 130.0mm and 286.0mm.
Based on distance L, Dx, Dy and Dd, value Dx/L, Dy/L and Dd/L are confirmed as 2.52,1.41 and 3.04 in the situation of example 1, and are confirmed as 1.80,0.90 and 1.99 in the situation of example 4.These values are greater than in the existing situation.
Based on the data of example 1, preferably be worth Dx/L, Dy/L and Dd/L satisfy condition " 1.80≤Dx/L≤2.52 ", " 0.90≤Dy/L≤1.41 " and " 1.99≤Dd/L≤3.04 " to example 4.
When the width of the diapire 6b of framework 6 reduces, make when distance D x, Dy and Dd are excessive, the inner surface of electron beam bump framework 6, thus produce secondary electron, making can be owing to halation takes place secondary electron.On the other hand, when the width of diapire 6b increases, make and electron beam shielding phenomenon can take place when too small apart from distance D x, Dy and Dd.
Simultaneously, preferably structure satisfies the cathode ray tube of above-mentioned condition, to prevent owing to the most advanced and sophisticated halation that causes of the reflection that forms in the framework bottom wall edge.This will describe in detail with reference to figure 5.
Fig. 5 is the partial cross section figure according to cathode ray tube of the present invention, has explained by the most advanced and sophisticated electron beam path of determining of reflection.In Fig. 5, panel 1, shadow mask 3, screen 4 and framework 6 have been shown.Especially, the bottom wall edge at framework 6 forms the most advanced and sophisticated 6c of reflection.
By adjusting the angle of the most advanced and sophisticated 6c of reflection suitably, can prevent the halation that causes owing to the most advanced and sophisticated 6c of electron beam impact effect.This will describe in detail with reference to following table 2.
Table 2
In table 2, " θ x " represents deflection angle, electron beam is with the reflecting surface along framework 6 major axis x extension of the most advanced and sophisticated 6c of reflection of this deflection angle bump framework 6, the angle that " β x " representative forms between the central shaft z of line that extends perpendicular to the major axis reflecting surface that reflects most advanced and sophisticated 6c and panel 1.And the angle that forms between the direction of propagation of line that extends perpendicular to the reflecting surface that reflects most advanced and sophisticated 6c and electron beam can be defined as " γ ".
In table 2, " θ y " represents deflection angle, electron beam is with the reflecting surface along framework 6 minor axis y extension of the most advanced and sophisticated 6c of reflection of this deflection angle bump framework 6, the angle that " β y " representative forms between the central shaft z of line that extends perpendicular to the minor axis reflecting surface that reflects most advanced and sophisticated 6c and panel 1.And, " θ d " represents deflection angle, electron beam is with the reflecting surface along framework 6 diagonal axis d extension of the most advanced and sophisticated 6c of reflection of this deflection angle bump framework 6, the angle that " β d " representative forms between the central shaft z of line that extends perpendicular to the diagonal axis reflecting surface that reflects most advanced and sophisticated 6c and panel 1.
In order effectively to prevent halation, cathode ray tube has the value θ x and the β x of satisfy condition " 0.80≤θ x/ β x≤0.90 ".
For the same reason, cathode ray tube has satisfy condition the value θ y and the β y of " 0.65≤θ y/ β y≤0.85 ", and the value θ d and the β d of satisfy condition " 0.80≤θ d/ β d≤0.95 ".
When the most advanced and sophisticated 6c of design reflectivity satisfied above-mentioned condition, the electron beam of the most advanced and sophisticated 6c of impact effect was propagated with the direction perpendicular to the central shaft z of panel 1 respectively.Thereby, might prevent that electron beam from propagating towards panel 1 after the most advanced and sophisticated 6c of impact effect, thereby solve the problem that causes owing to halation.
Simultaneously, when cathode ray tube according to the present invention had slim-lined construction, cathode ray tube can improve according to said structure showed remarkable effect.This will describe in detail with reference to figure 6 and Fig. 7.
Fig. 6 is the schematic diagram that has illustrated according to the elongated property of cathode ray tube of the present invention.Fig. 7 is that explanation is applied to the schematic diagram according to the cross section of the coil of the funnel of cathode ray tube of the present invention.
In Fig. 6, the distance of the center P of panel 1 outer surface that " H " representative comprises from the deflection center n of cathode ray tube to cathode ray tube, " W " representative along panel 1 to the distance of angular direction from the outer surface center P of panel 1 to the edge of effective screen of panel 1.
H on duty and the W " tan that satisfies condition
-1(W/H) 〉=1.05 in the time of ", cathode ray tube has about 120 ° or bigger deflection angle.Here, deflection angle is corresponding to 2* α, and " α " representative extends to the angle that forms between effective screen edge line partly of panel 1 at the line that extends to the outer surface center P from deflection center n with from deflection center n, wherein 1 the described effective screen edge part of line process to the angular direction extension from the outer surface center P along panel.When cathode ray tube when to have deflection angle be about 120 ° or bigger slim-lined construction, can be applied to cathode ray tube remarkable effect is provided by said structure according to the present invention is improved.
Simultaneously, have the situation of slim-lined construction at cathode ray tube, because deflection angle increases, the range of deflection of electron beam broadens.As a result, the required magnitude of current of deflection beam increases, thereby power consumption increases.
In order to address this problem, correspondingly, need to reduce the required magnitude of current of deflection beam.The magnitude of current reduces and can obtain by the funnel structure of revising cathode ray tube suitably.With reference to figure 7, the funnel 2 of cathode ray tube comprises main body a, coil b and neck c.According to the present invention, can make the coil b of funnel 2 have the vertical cross-section of basic rectangle by design funnel 2, and reduce the required magnitude of current of the electron beam deflecting.
Although disclose the preferred embodiments of the present invention for explanation, those skilled in the art are appreciated that and may make multiple modification, increase and delete under the prerequisite that does not break away from the disclosed scope and spirit of the present invention of claims.
From top explanation as can be seen, the invention provides a kind of elongated cathode ray tube, wherein the opening that is limited by the bottom wall edge of framework has optimum major axis, minor axis and diagonal axis width, to eliminate such as electron beam shielding phenomenon and the such problem of halation.
According to the present invention, also might be by adjusting the most advanced and sophisticated angle of reflection suitably, and prevent to impinge upon the reflection tip that the framework bottom wall edge forms and the halation that causes by electron beam.
Claims (7)
1. cathode ray tube comprises: panel, link to the panel rear end funnel, be formed with a plurality of grooves to carry out for the shadow mask of the color selection function of electron beam and to be used to support the framework of shadow mask, wherein:
Framework comprises sidewall and diapire, and shadow mask is soldered to this sidewall, and diapire extends from sidewall with state crooked in framework; And
Cathode ray tube meets the following conditions:
1.80≤Dx/L≤2.52
Wherein, " L " representative is on the direction that is parallel to the central shaft of panel (z), distance from the deflection center of cathode ray tube to edge, panel skirt section, and " Dx " representative is on the direction that is parallel to major axis (x), the distance from the central shaft (z) of panel to the bottom wall edge of framework.
2. cathode ray tube according to claim 1, wherein cathode ray tube meets the following conditions:
0.90≤Dy/L≤1.41
Wherein, " Dy " represents on the direction that is parallel to minor axis (y), the distance from the central shaft (z) of panel to the bottom wall edge of framework.
3. cathode ray tube according to claim 1, wherein cathode ray tube meets the following conditions:
1.99≤Dd/L≤3.04
Wherein, " Dd " represents on the direction that is parallel to diagonal axis (d), the distance from the central shaft (z) of panel to the bottom wall edge of framework.
4. cathode ray tube according to claim 1, wherein cathode ray tube meets the following conditions:
0.80≤θx/βx≤0.90
Wherein, " θ x " represents deflection angle, electron beam is with the reflecting surface along major axis (x) extension at the reflection tip of this deflection angle bump framework, and the angle of " β x " representative formation between the central shaft (z) of line that extends perpendicular to the major axis reflecting surface that reflects the tip and panel.
5. cathode ray tube according to claim 1 wherein is being parallel to the face plate center axle
(z) on the direction, the distance (L) from the deflection center of cathode ray tube to edge, panel skirt section satisfies condition:
92mm≤L≤144mm。
6. cathode ray tube according to claim 1, wherein cathode ray tube meets the following conditions:
tan
-1(W/H)≥1.05
Wherein, the distance of " H " representative from the deflection center of cathode ray tube to the panel outer surface center, and " W " representative along panel to the angular direction from the outer surface center of panel the distance to the edge of effective screen of panel.
7. cathode ray tube according to claim 1, wherein funnel comprises the coil of the perpendicular cross-sectional shape with basic rectangle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040048669A KR100624993B1 (en) | 2004-06-26 | 2004-06-26 | Cathode Ray Tube |
| KR1020040048670 | 2004-06-26 | ||
| KR1020040048669 | 2004-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1713333A CN1713333A (en) | 2005-12-28 |
| CN100418180C true CN100418180C (en) | 2008-09-10 |
Family
ID=35718890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100811252A Expired - Fee Related CN100418180C (en) | 2004-06-26 | 2005-06-27 | Cathode ray tube |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100624993B1 (en) |
| CN (1) | CN100418180C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06111731A (en) * | 1992-08-12 | 1994-04-22 | Samsung Display Devices Co Ltd | Cathode-ray tube |
| US5565731A (en) * | 1992-08-12 | 1996-10-15 | Samsung Electron Devices Co., Ltd. | Cathode ray tube |
| CN1254176A (en) * | 1998-11-05 | 2000-05-24 | 东芝株式会社 | Colour cathode-ray tube |
| WO2004032173A1 (en) * | 2002-10-02 | 2004-04-15 | Lg. Philips Displays | Cathode ray tube with reduced depth |
-
2004
- 2004-06-26 KR KR1020040048669A patent/KR100624993B1/en not_active IP Right Cessation
-
2005
- 2005-06-27 CN CNB2005100811252A patent/CN100418180C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06111731A (en) * | 1992-08-12 | 1994-04-22 | Samsung Display Devices Co Ltd | Cathode-ray tube |
| US5565731A (en) * | 1992-08-12 | 1996-10-15 | Samsung Electron Devices Co., Ltd. | Cathode ray tube |
| CN1254176A (en) * | 1998-11-05 | 2000-05-24 | 东芝株式会社 | Colour cathode-ray tube |
| WO2004032173A1 (en) * | 2002-10-02 | 2004-04-15 | Lg. Philips Displays | Cathode ray tube with reduced depth |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100624993B1 (en) | 2006-09-20 |
| CN1713333A (en) | 2005-12-28 |
| KR20050122976A (en) | 2005-12-29 |
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Owner name: ME LE DI AN GUANG SHI (SOUTH KOREA) CO., LTD. Free format text: FORMER OWNER: LG. PHILIPS DISPLAYS (KOREA) CO., LTD. Effective date: 20090904 |
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Effective date of registration: 20090904 Address after: Seoul, South Kerean Patentee after: LG Philips Displays Korea Address before: Gyeongbuk, South Korea Patentee before: LG Philips Displays (Korea) Co., Ltd. |
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Granted publication date: 20080910 Termination date: 20110627 |