CN1113031A - Flat picture tube - Google Patents

Flat picture tube Download PDF

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Publication number
CN1113031A
CN1113031A CN95105190A CN95105190A CN1113031A CN 1113031 A CN1113031 A CN 1113031A CN 95105190 A CN95105190 A CN 95105190A CN 95105190 A CN95105190 A CN 95105190A CN 1113031 A CN1113031 A CN 1113031A
Authority
CN
China
Prior art keywords
picture tube
flat picture
vertical
anode
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN95105190A
Other languages
Chinese (zh)
Inventor
李今植
李炳俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Youare Electronics Co Ltd
Original Assignee
Youare Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Youare Electronics Co Ltd filed Critical Youare Electronics Co Ltd
Publication of CN1113031A publication Critical patent/CN1113031A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/15—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • 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
    • H01J29/08—Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g. backing-plates for storage tubes or collecting secondary electrons
    • H01J29/085—Anode plates, e.g. for screens of flat panel displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/126—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using line sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

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  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A flat picture tube is disclosed which includes a heater for emitting thermions; a plurality of anodes extending vertically and arranged by a predetermined interval for absorbing the thermions; a plurality of phosphors arranged in a matrix form on the plurality of anodes and becoming luminous by the thermions absorbed to the anodes; and a plurality of grids extending horizontally and arranged by a predetermined interval for controlling the thermions to be absorbed to the anodes, thereby reducing the volume and power consumption.

Description

Flat picture tube
The present invention relates to a kind of picture tube of projection image, particularly a kind of flat picture tube.
Generally speaking, when the projection image, cathode ray tube makes fluorescent substance luminous by heat of emission electronics.
Illustrate a kind of common color cathode ray tube among Fig. 1.
Referring to Fig. 1, comprising electron gun 1, deflecting coil 3 and 4, shadow mask 6, fluorescent surface 5 and high voltage source 7.
Electron gun 1 is made of red, green, blue three electron guns, and it sends redness, green, blue three-beam electron-beam 8.Deflecting coil 3 and 4 red, green, blue three-beam electron-beam 8 is converged to shadow mask 6 certain a bit on.
Shadow mask 6 is located at the inner surface place on fluorescent substance surface 5, has a series of hole, and the electron beam 8 that this shadow mask is launched electron gun 1 passes its a certain hole and projects on the fluorescent substance surface 5.
Fluorescent substance surface 5 is by three kinds of fluorescent substances of red, green, blue are made on glass surface 2 equably.Electron beam 8 by shadow mask 6 makes the fluorescent substance surface light emitting.
High voltage source 7 is for electron gun 1 provides high voltage source, and the anode that is added with high pressure absorbs the electronics that is used to make fluorescent substance surface 5 luminous.
When high voltage source 7 provides the high pressure energy, the built-in heater heats (not shown) of red, green, blue electron gun, thus launch hot electron.These hot electrons are subjected to the control of a series of grid (not shown), thereby form electron beam 8.
The red, green, blue three-beam electron-beam 8 that the red, green, blue electron gun is launched is converged on a certain hole of shadow mask 6 by deflecting coil 3 and 4, passes from the hole then.
Red, green, blue three-beam electron-beam 8 that passes in a certain hole by shadow mask 6 and the red, green, blue fluorescent substance on the fluorescent substance surface 5 bump against, thereby make fluorescent substance luminous.
Yet in the common color cathode ray tube, the electron gun 1 of divergent bundle 8 and deflecting coil 3 and 4 are main factors that volume increases, and for divergent bundle 8 also must provide the high pressure energy, thereby increased power consumption.
Therefore, the object of the present invention is to provide a kind of flat picture tube of having cancelled electron gun and deflecting coil, thereby can reduce volume, reduce power consumption.
For realizing purpose of the present invention, provide a kind of flat picture tube.This flat picture tube comprises: one is used to launch thermionic heater; A plurality of by predetermined space setting and vertical stretching, be used to absorb thermionic anode; A plurality of luminous phosphor bodies of hot electron that array is settled and absorbed because of anode on described anode; And a plurality of by predetermined space setting and horizontal stretching, be used to control the thermionic grid that will be absorbed by anode.
Below accompanying drawing is briefly described.
Fig. 1 has shown a common color cathode-ray display tube;
Fig. 2 is a side cutaway view of flat picture tube of the present invention;
Fig. 3 is a front view of flat picture tube of the present invention;
Fig. 4 is a working state figure of flat picture tube of the present invention;
Fig. 5 is grid waveform input signal figure among the present invention;
Fig. 6 is anode waveform input signal figure among the present invention; With
Fig. 7 has shown another embodiment of flat picture tube of the present invention.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described.
Referring to Fig. 2 and Fig. 3, a heater 17, a plurality of anode 15, phosphor body 12, a plurality of grid 18 and a plurality of target (target) 20 have wherein been shown.
Heater 17 be used to launch thermionic, it by 40 row vertical heater wire H1-H40 form so that hot electron evenly distributes.Distance is 10mm between each heater wire.
The power supply of heater 17 can be 3 volts to 250 volts direct current and an AC power, does not require the use high voltage source.
Anode 15 is used to absorb from what heater 17 was launched and is used for luminous hot electron, has added positive voltage source above.On a flat glass surface 11, plated some vertical transparent metal lines during manufacturing, and anode is vertically stretched by predetermined interval.
For the purpose of electric insulation, vertically be provided with black insulant 19 between the transparent metal line anode 15.Anode 15 vertical transparent metal line widths are 0.11mm, and the width of black insulant is 0.08mm between the anode 15.
With 19 inches picture tubes is example, and anode 15 is made up of 2100 vertical transparent metal lines, thereby has increased definition, and common by comparison picture tube has only 600 lines.
Phosphor body 12 is arranged on the anode 15 by array format, and the hot electron that absorbs because of anode 15 is luminous.The red, green, blue tri-color phosphor is with alternately level printing of silk screen.Wherein, for the number of the number that makes in vertical direction the phosphor body that forms and grid 18 that is with the vertical scanning line number as many, with the insulant of black by predetermined interval setting.The black insulant is used for light and isolates.
With 19 inches picture tubes is example, and phosphor body 12 vertical direction are 0.46mm, and black insulant 13 is 0.11mm.The vertical scan line number is predesignated by TV station.For the NTSC mode, number of scanning lines is 525.
On the red, green, blue phosphor body, deposit layer of aluminum, become a metal substrate 14.An insulation net 16 is attached on the metal substrate 14.
Grid 18 is installed on the insulation net 16, with control from heater 17 emission and the hot electron that absorbed by anode 15.Gate level stretches, and presses the predetermined space setting.
Grid 18 be arranged so that in the horizontal direction its number and vertical scanning line number as many, such as 525 row (G1-G525).They press the predetermined space setting in vertical direction, and are attached on the insulation net 16.
Target 20 is arranged on the phosphor body that is between heater 17 and the grid 18 about in the of 12 on two ends, that is on black insulant 13.Be added with negative supply on the target, thus the hot electron that heater 17 sends will be absorbed by the phosphor body on the respective anode 15, and can the directive marginal portion, so phosphor body 12 is luminous.The number of target 20 is two times of the vertical scanning line number, that is is two times that grid 18 is counted.
Below in conjunction with Fig. 4,5,6 explanations work of the present invention.
According to the input signal A1 ' of an anode, A2 ' ... or A700 ' and grid input signal G1, G2 ... or G525, the work that is combined as a whole of the redness of anode 15, green, blue-fluorescence body.
For example, when anode input signal A1 ' and grid input signal G1 all for just and when synchronous, first red, green, blue phosphor body is luminous, this red, green, blue phosphor body brightness is controlled by input signal.At this moment, the target 20 that has been coupled with negative pressure by the hot electron of heater 17 emission converges to each phosphor body 12, be incident to by the state of synchronous anode 15 and grid 18 then anode 15 '.
Explain its working condition below in conjunction with 19 inches flat picture tubes.
In the one-period of vertical synchronizing signal (vertical sync signal) VS.525 grid input signal G1, G2, G3 ... and G525 sequentially is in high potential 59 microseconds; And in the one-period of horizontal-drive signal (horizontal symc signal) HS, anode input signal A1 ', A2 ' ..., and A700 ' sequentially is in 75 nanoseconds of high potentials.Wherein, when grid input signal and anode input signal all were in high potential, corresponding red, green, blue tri-color phosphor was luminous.According to horizontal-drive signal HS and vertical synchronizing signal VS, red, green, blue tri-color phosphor flatly order is luminous, next line red, green, blue tri-color phosphor is luminous then, thereby makes phosphor bodies all in this flat picture tube luminous in a vertical synchronizing signal VS cycle.
Wherein, be in electronegative potential corresponding to not the grid input signal and the anode input signal of luminous phosphor body, this state is an idle state.The luminosity of red, green, blue tri-color phosphor is determined by received image signal.
Referring to Fig. 7, electrode and metal substrate 14 link, and integrally combine with grid 18, and this practice makes deposition forms on phosphor body 14 metal substrate 14 can be used as grid and uses, and the grid that need not to separate.
In other words, come the hot electron of control heater 17 emissions, make it to be absorbed by the phosphor body on the anode 15 12 by the electrode that links with metal substrate 14.
As mentioned above, the present invention works under a kind of array digital form, need not electron gun and deflecting coil, has reduced volume like this.For 20 inches picture tubes, its thickness maximum has only 4cm, thereby can be used as the picture tube of wall installing type TV.In addition, the present invention does not need high voltage source, has reduced power consumption.For 19 inches color picture tubes, its horizontal line number is 2100, compares with the common color cathode ray tube that has only 600 lines, has improved definition.

Claims (18)

1, a kind of flat picture tube comprises:
One is used to launch thermionic heater;
A plurality ofly press the predetermined space setting and vertically stretch, be used to absorb thermionic anode;
A plurality ofly be arranged on described a plurality of anode, and absorb the luminous phosphor body of hot electron because of described anode with array format; With,
A plurality of predetermined space setting and horizontal stretchings pressed are used to control the thermionic grid that will be absorbed by described anode.
2, by the flat picture tube of claim 1, it is characterized in that, between described grid and described phosphor body, form a metal substrate.
3, press the flat picture tube of claim 1, further comprise a plurality of targets on the top and bottom that are installed in the described a plurality of phosphor bodies between described heater and the described grid, the hot electron that is used for described heater is launched is not transmitted into the marginal portion.
4, by the flat picture tube of claim 2, it is characterized in that between described grid and metal substrate, having an insulation net.
5, by the flat picture tube of claim 2, it is characterized in that, deposited layer of aluminum to form described metal substrate.
6, by the flat picture tube of claim 1, it is characterized in that described heater is made up of 40 vertical heater wires.
By the flat picture tube of claim 1, it is characterized in that 7, described anode is by plating by predetermined space and the vertical transparent metal line of vertical stretching is formed on surface of plate glass.
8, by the flat picture tube of claim 1, it is characterized in that the black insulator vertically is provided with by predetermined space, so that described phosphor body is by array format.
9, by the flat picture tube of claim 1, it is characterized in that the number of the described phosphor body of in the vertical direction is identical with the number of described grid.
10, by the flat picture tube of claim 1, it is characterized in that described phosphor body is sequentially to be printed by red, green, blue look phosphor body level to form on described a plurality of anodes.
11, by the flat picture tube of claim 1, it is characterized in that the number of described grid is identical with the vertical scanning line number.
12, by the flat picture tube of claim 3, it is characterized in that the number of described target is two times of described number of gates.
13, by the flat picture tube of claim 3 and 8, it is characterized in that described target is installed on the described black insulator.
14, by the flat picture tube of claim 6, it is characterized in that, be spaced apart 10mm between the described vertical heater wire.
15, by the flat picture tube of claim 7, it is characterized in that described black insulator is arranged between the described transparent vertical metal wire.
16, by the flat picture tube of claim 7, it is characterized in that described transparent vertical metal line-width is 0.11mm.
By the flat picture tube of claim 7, it is characterized in that 17, described transparent vertical metal wire is that the intervals by 0.08mm plates.
18, by the flat picture tube of claim 8, it is characterized in that described black insulator is pressed the predetermined space setting, so that described phosphor body number is identical with the vertical scanning number.
CN95105190A 1994-04-28 1995-04-28 Flat picture tube Pending CN1113031A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019940009164A KR0160322B1 (en) 1994-02-25 1994-04-28 Flat panel display
KR9164/1994 1994-04-28

Publications (1)

Publication Number Publication Date
CN1113031A true CN1113031A (en) 1995-12-06

Family

ID=19382005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN95105190A Pending CN1113031A (en) 1994-04-28 1995-04-28 Flat picture tube

Country Status (5)

Country Link
EP (1) EP0680068B1 (en)
JP (1) JPH0922670A (en)
KR (1) KR0160322B1 (en)
CN (1) CN1113031A (en)
DE (1) DE69503427T2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176184A (en) * 1961-02-20 1965-03-30 Roy L Knox Electron deflection system for image reproduction including flat tube and planar cathode
DE3235724A1 (en) * 1981-10-02 1983-04-21 Futaba Denshi Kogyo K.K., Mobara, Chiba FLUORESCENT DISPLAY DEVICE
JPS6037636A (en) * 1983-08-09 1985-02-27 Ise Electronics Corp Manufacture of fluorescent character display tube
JPS61168844A (en) * 1985-01-22 1986-07-30 Matsushita Electric Ind Co Ltd Image display device
JPS61250943A (en) * 1985-04-27 1986-11-08 Futaba Corp Graphic fluorescent character display tube

Also Published As

Publication number Publication date
DE69503427D1 (en) 1998-08-20
KR950025836A (en) 1995-09-18
EP0680068A1 (en) 1995-11-02
JPH0922670A (en) 1997-01-21
EP0680068B1 (en) 1998-07-15
DE69503427T2 (en) 1998-12-10
KR0160322B1 (en) 1998-12-01

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