CN101202009A - Plasma display apparatus - Google Patents
Plasma display apparatus Download PDFInfo
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- CN101202009A CN101202009A CNA2008100024547A CN200810002454A CN101202009A CN 101202009 A CN101202009 A CN 101202009A CN A2008100024547 A CNA2008100024547 A CN A2008100024547A CN 200810002454 A CN200810002454 A CN 200810002454A CN 101202009 A CN101202009 A CN 101202009A
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- mentioned
- electrode
- plasma display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
- H01J2211/20—Constructional details
- H01J2211/62—Circuit arrangements
Abstract
The invention discloses a plasma display device. As a maintaining board comprises a power supply component and the maintaining board supplies power to other boards, the invention has the advantages of reducing the overall number of the driving board and reducing the unit production unit. Besides, the plasma display device also can increase the effective utilization rate of the back space of a thermal-sink rack. The invention comprises scanning electrodes and maintaining electrodes which are arrayed in parallel to each other, and addressing electrodes crossed with the scanning electrodes and maintaining electrodes; a thermal-sink rack arranged at the back of a plasma display board; and a driving part arranged at the back of the thermal-sink rack. The driving part comprises a scanning board for providing a driving signal to the scanning electrodes, a data board for providing a driving signal to the addressing electrodes, a maintaining board for providing a driving signal to the maintaining electrodes, a control board and an image processing board for signal-processing the inputted image signal. The maintaining board is used for supplying power to the data board, the maintaining board, the control board and the image processing board.
Description
Technical field
The present invention relates to a kind of plasma display system.
Background technology
Plasma display system comprises plasma display panel and drive division.
Usually in plasma display panel, form luminescent coating in the discharge string (Cell) by the barrier division, form a plurality of electrodes (Electrode) simultaneously.
And, provide drive signal by electrode to discharge string.
Then, produce discharge according to the drive signal that provides in the discharge string.Wherein, when producing discharge by drive signal in the discharge string, the discharge gas that charges in the discharge string discharges vacuum ultraviolet (VacuumUltravioletrays), and this vacuum ultraviolet makes the light-emitting phosphor that is formed in the discharge string, thereby produces visible light.By this visible light, show image on the picture of plasma display panel.
Summary of the invention
Goal of the invention: the present invention aims to provide the drive plate number that is located at the heat radiation rack back side by minimizing, reduces and makes unit price, can be at the plasma display system of more effective each drive plate of configuration in the heat radiation rack back side.
Technical scheme: plasma display system of the present invention comprises: comprise mutually scan electrode side by side and keep electrode, and with scan electrode and keep electrode crossing addressing electrode plasma display panel and; Be configured in the heat radiation rack at the back side of plasma display panel; And be configured in the drive division at the heat radiation rack back side; Drive division comprise to scan electrode provide drive signal scanning board and, the database of drive signal is provided to addressing electrode, with provide the retaining plate of drive signal to keeping electrode, reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing, the power supply of database, retaining plate, control panel and image processing plate is provided by retaining plate.
And preferably control panel and image processing plate carry out anti-gamma (ReverseGamma) correction, shadow tone (Halftone) correction and the output of son field mapping (SubfieldMapping) back to the signal of video signal of input.
And drive division is preferably in the address period of son field to keeping electrode and provides and keep offset signal, keeps offset signal and is transferred to after by scanning board output to offer after the retaining plate and keeps electrode.
And preferably the catercorner length of the effective coverage of plasma display panel is below 40 inches (inch).
Another plasma display system of the present invention comprises: comprise mutually scan electrode side by side and keep electrode, and with scan electrode and keep electrode crossing addressing electrode plasma display panel and; Be located at the heat radiation rack at the plasma display panel back side; And be located at the drive division at the heat radiation rack back side; Drive division comprises the scanning board that drive signal is provided to scan electrode, with the database that drive signal is provided to addressing electrode, with provide the retaining plate of drive signal to keeping electrode, reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing, the area of retaining plate is the wideest like the area of scanning board, database and control panel and image processing plate.
And, the best power supply that database, retaining plate, control panel and image processing plate are provided by retaining plate.
And the address period that drive division is preferably in son field provides and keeps offset signal to keeping electrode, keeps offset signal and is by being transferred to after the scanning board output to offer after the retaining plate and keep electrode.
And the catercorner length of plasma display panel effective coverage is preferably below 40 inches (inch).
A plasma display device more of the present invention comprises: comprises mutual scan electrode side by side and keeps electrode, and and scan electrode and the plasma display panel of keeping the addressing electrode of electrode crossing; With the heat radiation rack that is located at the plasma display panel back side; And be located at the heat radiation rack back side, provide drive signal to keeping electrode, and comprise the retaining plate of power supply unit (PowerSupplyUnit:PSU).
And, be preferably in establish at the heat radiation rack back side again provides scanning board from drive signal to scan electrode, with the database that drive signal is provided to addressing electrode, reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing, the area of retaining plate is wideer than the area of scanning board, database and control panel and image processing plate.
And the address period that is preferably in son field provides and keeps offset signal to keeping electrode, keeps offset signal and is provided to the above-mentioned electrode of keeping after being transferred to retaining plate after by scanning board output.
And preferably the catercorner length of the effective coverage of plasma display panel is below 40 inches (inch).
Beneficial effect: plasma display system of the present invention comprises power supply unit on retaining plate, and retaining plate provides power supply to other plates, therefore has the whole number that reduces drive plate, reduces the effect of making unit price.And plasma display system of the present invention has the effect of the effective rate of utilization that can improve the heat radiation rack backside space.
Description of drawings
Fig. 1 introduces the picture that plasma display system of the present invention is formed.
Fig. 2 is a picture of introducing the plasma display panel structure of the plasma display system that can be included in the present invention's one example.
Fig. 3 is a picture of introducing configuration one example of drive division of the present invention.
Fig. 4 a to Fig. 4 c is for introducing comparative example 1,2,3 picture.
Fig. 5 a to Fig. 5 b is a picture of introducing an example of the driving circuit that is included in scanning board and retaining plate.
Fig. 6 a to Fig. 6 m is that the drive division of introducing Fig. 5 a is operated the picture of an example.
Major part symbol description in the＜picture 〉
201: front substrate 202: scan electrode
203: keep electrode 204: upper dielectric layer
205: protective seam 211: the back substrate
212: barrier 213: addressing electrode
214: luminescent coating 215: lower dielectric layer
212a: the 2nd barrier 212b: the 1st barrier
Embodiment
Below, specifically introduce plasma display system of the present invention with reference to additional picture.
Fig. 1 introduces the picture that plasma display system of the present invention is formed.
Below, Fig. 2 is a picture of introducing the plasma display panel structure of the plasma display system that can be included in the present invention's one example.
The upper dielectric layer 204 that covers scan electrode 202 and keep electrode 203 is formed at the top that forms scan electrode 202 and keep the front substrate 201 of electrode 203.
Upper dielectric layer 204 restriction scan electrodes 202 and keep the discharge current of electrode 203, make scan electrode (202, Y) and keep insulation between the electrode 203.
Can on this upper dielectric layer 204, form the protective seam 205 of facilitation discharging condition.This protective seam 205 can comprise the high material of secondary electron release coefficient, for example magnesium oxide (MgO) material.
And, configured electrodes on the back substrate 211, for example addressing electrode 213, can form the dielectric layer that covers addressing electrode 213 on the back of this configuration addressing electrode 213 substrate 211, and for example lower dielectric layer 215.
Can form the bar shaped that the dividing discharge space is a discharge string (StripeType) on the top of lower dielectric layer 215, well shape (WellType), triangle (DeltaType), barriers such as honeycombed 212.Therefore, form red (Red:R) green (Green:G), blue discharge string such as (Blue:B) in front between substrate 101 and the back substrate 211.And, red (R), green (G) outside blue (B) discharge string, also can form white (White:W) or yellow (Yellow:Y) discharge string again.
Simultaneously, redness (R) in the plasma display panel of the present invention's one example, the width of green (G) and blue (B) discharge string can be actual identical, also can be with red (R), the width of the more than one discharge string in the middle of green (G) and blue (B) discharge string is made as different with other discharge string width.
For example, can be made as the width minimum of redness (R) discharge string, the width of green (G) and blue (B) discharge string is greater than the width of red (R) discharge string.At this, the width of green (G) discharge string can be identical or different with the width reality of blue (B) discharge string.
Then be located at interior luminescent coating 214 width of discharge string also along with the width of discharge string changes.For example, be located at blueness (B) the luminescent coating width of blueness (B) discharge string, wideer than redness (R) the luminescent coating width that is located in redness (R) discharge string; Be located at the width of green (G) luminescent coating in green (G) discharge string simultaneously, wideer than the width that is located at redness (R) luminescent coating in redness (R) discharge string, can improve the photo dazzle color temperature characteristic that is embodied thus.
And the plasma display panel of the present invention's one example not only can adopt barrier shown in Figure 2 212 structures, also can take the barrier structure of multiple shape.For example, can adopt barrier 212 to comprise the 1st barrier 212b and the 2nd barrier 212a, wherein the height of the 1st barrier 212b and the 2nd barrier 212a type barrier structure such as mutually different difference highly.
At this, if type barrier structures such as differences, then the height of the 1st barrier 212b can be lower than the 2nd barrier 212a height in the middle of the 1st barrier 212b or the 2nd barrier 212a.
And, though Fig. 2 shows and has introduced red (R) that green (G) and blue (B) discharge string are arranged in respectively on the same line, also can arrange with other shapes.For example, also can take redness (R), green (G) and blue (B) discharge string are arranged by triangle (Delta) type of triangular shaped arrangement.And the shape of discharge string also can adopt the pentagon outside the quadrangle, multiple polygon such as sexangle.
And, only show among Fig. 2 that effective barrier 212 is located at the example of back substrate 211, but effectively barrier 212 can be located on any substrate in the middle of front substrate 201 or the back substrate 211.
At this, can charge into certain discharge gas in the discharge string by barrier 212 divisions.
Simultaneously, in the discharge string by barrier 212 divisions, discharge the luminescent coating 114 of the visible light of displayed image in the time that address discharge can being formed.For example, can form redness (Red:R), green (Green:G), blue (Blue:B) luminescent coating.
And except red (R), green (G) outside blue (B) fluorophor, also can form at least one in the middle of white (White:W) or yellow (Yellow:Y) luminescent coating again.
And, red (R), luminescent coating 214 thickness of at least one discharge string are different with other discharge string in the middle of green (G) and blue (B) discharge string.For example, promptly green (G) luminescent coating 214b of the luminescent coating of green (G) discharge string, or the luminescent coating of blue discharge string, the thickness that is blue phosphor layers 214a is thicker than promptly red (R) luminescent coating 214c of the luminescent coating thickness of red (R) discharge string, at this, luminescent coating 214 thickness of green (G) discharge string can be identical or different with the luminescent coating 214 thickness reality of blue (B) discharge string.
Simultaneously, more than only be plasma display panel one example that shows and introduced the present invention's one example, indicate the plasma display panel that the present invention is not limited to have above structure at this.For example, only show the upper dielectric layer of numbering 204 in more than introducing and number the example that 215 lower dielectric layer is respectively a layer (Layer), but more than one dielectric layer can be formed by a plurality of layers in the middle of this upper dielectric layer or the lower dielectric layer.
And, can cause external light reflection in order to prevent to number effective barrier of 212, establish the black layer (BlackLayer does not show among the figure) that can absorb exterior light again on the effective top of barrier 212.And this black layer is preferably formed on the ad-hoc location on the front substrate 201 corresponding with effective barrier 212.
And the width or the thickness that are formed on the addressing electrode 213 on the back substrate 211 can be certain value, and the width of discharge string inside or thickness also can be different with discharge string external width or thickness.For example, the wide or thickness of discharge string inside can be wideer or thicker than discharge string outside.
Below, Fig. 3 is a picture of introducing configuration one example of drive division of the present invention.
Scanning board 310 provides drive signal to the scan electrode of plasma display panel.
After control panel and image processing plate 320 produces the corresponding time control signal of signal of video signal of input, can gated sweep plate 310, the operation of retaining plate 300 and database 330.
And control panel and image processing plate 320 can carry out the signal of video signal of input exporting after anti-gamma (ReverseGamma) correction, shadow tone (Halftone) correction and the son field mapping image processing such as (SubfieldMapping).
So, control the operation of other editions when the signal of video signal of control panel and 320 pairs of inputs of image processing plate carries out image processing, comprised controller (Controller) and and image-processing circuit (VideoSignalController:VSC) simultaneously in this expression control panel and the image processing plate 320.
Retaining plate 300 provides drive signal to the electrode of keeping of plasma display panel.The power supply that this retaining plate 300 provides scanning board 310, database 330 and control panel and image processing plate 320 to use.Arrow has been represented the power supply feed lines among Fig. 3.
So, the power supply that retaining plate 300 provides other plates to use, expression retaining plate 300 has comprised power supply unit (PowerSupplyUnit:PSU).
So, when retaining plate 300 comprised power supply unit according to the present invention, retaining plate 300 areas of integration can be that scanning board 310, database 330 and control panel and image processing plate 320 areas are wideer than other plates.
Drive division with described comparative example 1,2, the 3 above-described Fig. 3 of comparative analysis of Fig. 4 a to Fig. 4 c.
Fig. 4 a to Fig. 4 c is for introducing comparative example 1,2,3 picture.
At first, Fig. 4 a is a comparative example 1, at the example of heat radiation rack 460 back sides configuration scanning board 410, retaining plate 400, database 420, control panel plate 440, image processing plate 450 and power supply board 430.Power supply board 430 is the plates that comprise power supply unit.
At this moment, cut apart plate and meet each function for it, the control panel of the numbering 320 of Fig. 3 and image processing plate are divided into control panel plate 440 and image processing plate 450, and the retaining plate of numbering 300 is divided into retaining plate 400 and power supply board 430.
At this, the power supply that power supply board 430 provides other plates to use.The feed lines of representing this power supply in the picture with arrow.
Among Fig. 4 a, the number minimum that is configured in the plate at heat radiation rack 460 back sides is 6, has therefore increased and has made the required expense of plate, and its manufacturing expense is high relatively.
Simultaneously, among Fig. 4 a, for the signal transmitting and receiving between each plate, power supply supply, need wiring, but connect up overcomplicated, therefore may reduce operability.And the wiring amount can increase, and therefore can improve the manufacturing unit price.
Following Fig. 4 b is a comparative example 2, is the example at the back side of heat radiation rack 461 configuration scanning board 411, retaining plate 401, database 421, control panel plate 441 and image processing plate 451.
It is the example that the power supply board of the scanning board of the numbering in the middle of Fig. 4 a 410 and numbering 430 is integrated into scanning board 411.
At this, the power supply that scanning board 411 provides other plates to use.The feed lines of having represented power supply in the picture with arrow.
Among Fig. 4 b, scanning board 411 areas that are configured in heat radiation rack 461 back sides become wide.Then, image processing plate 451, can configuration control board 441 on the heat radiation rack 461 or the space of retaining plate 401 can be not enough, therefore may avoid scanning board 411 and other plates are concentrated be set in specific part.Therefore, can reduce the space service efficiency of heat radiation rack 461.
Below, Fig. 4 c is a comparative example 3, be at the back side of heat radiation rack 462 configuration scanning board 412, retaining plate 402, database 422, control panel plate 442 and image processing plate 452, the power supply board of the database of numbering 420 and numbering 430 is integrated into the example of database 422 among while Fig. 4 a.
At this, the power supply that database 422 provides other plates to use.The feed lines of having represented power supply in the picture with arrow.
Among Fig. 4 c, database 422 areas that are configured in heat radiation rack 462 back sides can become wide.Then, scanning board 412 and retaining plate 402 meeting tilted configuration are in heat radiation rack 462 upper direction.Then, be difficult to electrically connect the scan electrode or the retaining plate 402 of scanning board 412 and plasma display panel and keep electrode.
Simultaneously, control panel plate and image processing plate comprise the main accessory that carries out signal of video signal or control other plate operations.Therefore, when integrating power supply board on the control panel or integrate power supply board on the image processing plate, the become control of instability or plasma display system of image processing meeting can become unstable.
On the contrary, compare with scanning board and database, the area of retaining plate is relatively little, and its operation is also simple than other versions.Therefore, preferably power supply board is incorporated on the retaining plate.
Simultaneously, when the plasma display panel size diminished, the heat radiation rack size that is configured in the plasma display panel back side also can diminish.Then, space that can the configuration driven plate can be more and more not enough.
At this moment, integrate retaining plate and power supply board, when other plates provide power supply, can reduce the whole number of drive plate,, also can improve the space effective rate of utilization of heat radiation rack even the plasma display panel size diminishes by retaining plate.
For the plasma display panel size that can be included in plasma display system of the present invention, be not particularly limited, but consider that plasma display panel hour helps integrating retaining plate and power supply board, the effective coverage catercorner length that then can be applied in the ion display board of plasma display system of the present invention is preferably below 40 inches (inch).
Simultaneously, when integrating retaining plate and power supply board according to the present invention, the area of integrating the back retaining plate is than other plates, and promptly the area of scanning board, database and control panel and image processing plate is wideer.
Below, Fig. 5 a to Fig. 5 b is a picture of introducing an example of the driving circuit that is included in scanning board and retaining plate.
At this, the S8 of biased witch portion provides the part of keeping offset signal to keeping electrode in the address period of son field, and its position comprises in the part 2 51 that is configured in scanning board.
The reason that so S8 of biased witch portion is included in part 2 51 is, when integrating retaining plate and power supply board, can excessively increase the area of retaining plate, at this if the S8 of biased witch portion is also contained on the retaining plate, then can further increase the area of retaining plate, can reduce the effective rate of utilization of heat radiation rack backside space.
So, when being included in the S8 of biased witch portion in the part 2 51, keeping offset signal and need be sent to be provided to after the retaining plate by scanning board output and keep electrode.Fig. 5 b has shown such example.
Analysis chart 5b has then disposed from scanning board 310 to retaining plate 300 signal transmssion line.Can will keep offset signal Vzb by this transmission line and be provided to retaining plate from scanning board.Among Fig. 5 b, dotted the transmission path of keeping offset signal Vzb.
Simultaneously, in the part 2 51 of Fig. 5 a, can be between the 1st switch portion S1 one end and the 2nd switch portion S2 other end, again the buffer switch portion of configuration and 500 configurations in parallel of turntable driving integrated circuit portion (550, S6).
Sort buffer switch portion S6 can disperse the load (Load) of turntable driving integrated circuit portion 500, alleviates the burden of turntable driving integrated circuit portion 500, prevents electrical damage simultaneously.
Turntable driving integrated circuit portion 500 comprises the 1st switch portion S1 and the 2nd switch portion S2, is connected with the scan electrode Y of plasma display panel between the other end of the 1st switch portion S1 and the 2nd switch portion S2 one end.
Keep the S3 of voltage switch portion via the 1st path and turntable driving integrated circuit portion 500, provide to scan electrode Y and keep voltage Vs; Via 2nd path different and turntable driving integrated circuit portion 500, provide oblique signal to scan electrode Y with the 1st path.
For this reason, keep the S3 of voltage switch portion and comprise 1. control terminal and 2. control terminal, 1. control terminal disposes the 1st variable resistance part VR1.
1. supply the control signal that goes up oblique signal in the control terminal, 2. terminal is then supplied the control signal of keeping voltage Vs.
This S3 of voltage cut-out portion that keeps can be located at the 2nd switch portion S2 other end and provide and keeps the keeping between the voltage source of voltage Vs.
At this, the 1st path is to begin via the path of keeping the 2nd switch portion S2 that arrives turntable driving integrated circuit portion 500 behind S3 of voltage switch portion and the 3rd node n3 from keeping voltage source.
The 2nd path is to begin to arrive the path of the 1st switch portion S1 of turntable driving integrated circuit portion 500 behind the 540, the 2nd node n2 of scanning voltage supply department via keeping the S3 of voltage switch portion, the 3rd node n3, the S5 of memory switch portion from keeping voltage source.
Declivity switch portion S4 is via 3rd path different with the 1st, 2 path and turntable driving integrated circuit portion 500, and the voltage of earth level GND is provided to scan electrode Y; Via 2nd path different and turntable driving integrated circuit portion 500, provide the declivity signal to scan electrode Y with the 1st, 2,3 paths.
For this reason, declivity switch portion S4 comprises 3. control terminal and 4. control terminal, 3. configuration the 2nd variable resistance part VR2 in the control terminal.
4. 3. supply earth level GND voltage control signal in the control terminal supplies the declivity control signal in the control terminal.
This declivity switch portion S4 can be located between the 1st switch portion S1 one end and the ground connection.
At this, the 3rd path is the path that arrives ground connection since the 1st switch portion S1 after via the 2nd node n2, declivity switch portion S4.
The 4th path is the path that arrives ground connection since the 2nd switch portion S2 after via the 3rd node n3, the S5 of memory switch portion, the 540, the 2nd node n2 of scanning voltage supply department and declivity switch portion S4.
This 4th path is simultaneously through the 2nd path and scanning voltage supply department 540 and the S5 of memory switch portion.
Scanning voltage supply department 540 is a positive voltage source, and scanning voltage Vsc is provided.This scanning voltage supply department 540 is between the 1st switch portion S1 one end and the 2nd switch portion S2 other end, with 500 configurations in parallel of turntable driving integrated circuit portion.
The S5 of memory switch portion is between the scanning voltage supply department 540 and the 2nd switch portion S2 other end, with the 540 direct connections configuration of scanning voltage supply department.
This memory switch S5 of portion can be provided with the 3rd variable resistance part VR3 at control terminal.
Z keeps the S7 of voltage switch portion and can provide and keep voltage Vs to keeping electrode Z.
This Z keeps the S7 of voltage cut-out portion and can be configured in to provide and keep electrode Z and keep the keeping between the voltage source of voltage Vs.
Z declivity switch portion S9 can provide the voltage of earth level GND to keeping electrode Z, and the declivity signal can be provided.
For this reason, Z declivity switch portion S9 can comprise 5. control terminal and 6. control terminal, 5. configuration the 4th variable resistance part VR4 on the control terminal.
6. 5. supply earth level GND voltage control signal in the control terminal supplies the declivity control signal in the control terminal.This Z declivity switch portion S9 can be configured in and keep between electrode Z and the ground connection.
Biased witch portion (570, S8) can provide and keep offset signal to keeping electrode Z.This biased witch S8 of portion can be configured in the bias voltage source that bias voltage Vzb is provided and keep between the electrode Z.
1ER switch portion S10 provides after the voltage of keeping electrode Z can being recovered to scan electrode Y.
2ER switch portion S11 provides after the voltage of scan electrode Y can being recovered to and keeping electrode Z.
This 1ER switch portion S10 and 2ER switch portion S11 can be configured between the 2nd node n2 and the 4th node n4 in parallel connection.
The 1st sensor part L1 can be to carrying out LC resonance from keeping the voltage that is provided to scan electrode Y after electrode Z reclaims.This 1st sensor part L1 is configured between the 2nd node n2 and the 1ER switch portion S10.
The 2nd sensor part L2 can carry out LC resonance to being provided to the voltage of keeping electrode Z after reclaiming from scan electrode Y.This 2nd sensor part L2 is configured between the 2nd node n2 and the 2ER switch portion S11.
Below, Fig. 6 a to Fig. 6 m is that the drive division of introducing Fig. 5 a is operated the picture of an example.Fig. 6 a to Fig. 6 m has shown an example of the drive division operation that Fig. 5 a is put down in writing, and the present invention is not limited to this, can adopt the whole bag of tricks to operate.Below analyze the drive division operation that produces Fig. 5 a of drive waveforms shown in Fig. 6 a.
At first, during the pre-replacement before during the replacement of son field in, Z keeps the S7 of voltage switch portion and is opened, and the 2nd switch portion S2, the S5 of memory switch portion, declivity switch portion S4 are opened.
Then, shown in Fig. 6 b, the voltage Vs that keeps that keeps that voltage source provides keeps the S7 of voltage switch portion via Z and is provided to and keeps electrode Z.Thus, can provide and have the 1st of the 17th voltage V17 and keep offset signal to keeping electrode Z.At this, the 17th voltage V17 is preferably and keeps voltage Vs.
At this moment, declivity switch portion S4 provides the declivity control signal to 3. control terminal, forms via the path that arrives ground connection behind the 2nd switch portion S2, the S5 of memory switch portion, the 540, the 2nd node n2 of scanning voltage supply department, the declivity switch portion S4, i.e. the 4th path.
Then, by being configured in 3. channel (Channel) width of the 2nd variable resistance part VR2 adjustment declivity switch portion S4 of control terminal, when ground connection is observed, the scanning voltage Vsc direction that scanning voltage supply department 540 provides becomes negative (-) voltage, and the voltage of scan electrode Y can drop to the 6th voltage V6 gradually from the 5th voltage V5 simultaneously.That is, can provide the 1st declivity signal to scan electrode Y.
During this pre-replacement, pre-dark discharge takes place in the discharge string, by this pre-dark discharge, accumulation ancient piece of jade, round, flat and with a hole in its centre electric charge in discharge string.
So, during pre-the replacement in the discharge string during accumulation ancient piece of jade, round, flat and with a hole in its centre electric charge, resetting in during the replacement afterwards, discharge can be more stable.And the voltage swing of the reset signal that provides in during even reduction is reset, the state of ancient piece of jade, round, flat and with a hole in its centre electric charge also can full and uniformly be stablized in discharge string.
Afterwards, the 1st switch portion S1 is activated, and the 2nd switch portion S2 and the S5 of memory switch portion are closed.
At this moment, provide earth level GND voltage control signal to 4. control terminal among the declivity switch portion S4, form via the path that arrives ground connection behind the 1st switch portion S1, the 2nd node n2, the declivity switch portion S4, i.e. the 3rd path.
Then, shown in Fig. 6 c, the voltage of earth level GND is provided to scan electrode Y via declivity switch portion S4, and the voltage of scan electrode Y rises to the 1st voltage V1, the i.e. voltage of earth level GND thus.
At this moment, when the S6 of buffer switch portion is opened, can form the voltage feed lines that reaches scan electrode Y behind the body diode (BodyDiode) via S6 of buffer switch portion and the 2nd switch portion S2.Then, the sub-load that is applied to the 1st switch portion S1 can be distributed to the S6 of buffer switch portion, can reduce the heat of the 1st switch portion S1 thus.
Represent voltage feed lines with fine line via the S6 of buffer switch portion.Below omit introduction to the S6 of buffer switch portion operation.
Afterwards, declivity switch portion S4 is closed, and 1ER switch portion S10 is opened.
Then, shown in Fig. 6 d, be provided to scan electrode Y after reclaiming the voltage keep electrode Z.At this moment, resonate by the 1st sensor part L1, the voltage of scan electrode Y rises by LC resonance.For example, the voltage of scan electrode Y can rise to the 2nd voltage V2 from the 1st voltage V1 by LC resonance.At this, best the 1st voltage V1 is the voltage of earth level GND, and the 2nd voltage V2 is for keeping voltage Vs.
Afterwards, 1ER switch portion S10 is closed, and keeps the S3 of voltage switch portion and is opened.
Then, shown in Fig. 6 e, the voltage Vs that keeps that keeping voltage source provides is provided to scan electrode Y via keeping the S3 of voltage switch portion, and the voltage of scan electrode Y can be kept the 2nd voltage V2 thus.
Afterwards, Z keeps the S7 of voltage switch portion and the 2nd switch portion S2 is closed, and Z declivity switch portion S9, the 1st switch portion S1 and the S5 of memory switch portion are opened.
Then, shown in following Fig. 6 f, the voltage of scan electrode Y can rise to the 3rd voltage V3 gradually from the 2nd voltage V2.That is, provide oblique signal on the 1st to scan electrode Y.
At this moment, provide the declivity control signal to 5. control terminal among the Z declivity switch portion S9, form path via the 4th node (n4), Z declivity switch portion S9.
Then, by being configured in the 5. channel size of the 4th variable resistance part VR4 adjustment Z declivity switch portion S9 of control terminal, the voltage of keeping electrode Y can drop to the 18th voltage V18 gradually from the 17th voltage V17.That is, can provide the 5th declivity signal to keeping electrode Z.
At this, the 3rd voltage V3 keeps voltage Vs and scanning voltage Vsc sum.
Afterwards, the 1st switch portion S1 and the S5 of memory switch portion are closed.Then, shown in Fig. 6 g, the voltage of scan electrode Y can drop to the 4th voltage V4.At this, the 4th voltage V4 preferably keeps voltage Vs.
Afterwards, Z declivity switch portion S9, keep the S3 of voltage switch portion and the 2nd switch portion S2 is closed, the 1st switch portion S1 and 2ER switch portion S11 are opened.
Then, shown in Fig. 6 h, be provided to behind the voltage of recovery scan electrode Y and keep electrode Z.At this moment, resonate by the 2nd sensor part L2, the voltage of keeping electrode Z rises by LC resonance.For example, the voltage of keeping electrode Z can rise to the 19th voltage V19 from the 18th voltage V18 by LC resonance.At this, the 18th voltage V18 is the voltage of earth level GND preferably, and the 19th voltage V19 preferably keeps voltage Vs.
Afterwards, 2ER switch portion S11 is closed, and Z keeps the S7 of voltage switch portion, declivity switch portion S4 is opened.Then, the voltage of scan electrode Y becomes the voltage of earth level GND, provides and keeps the 19th voltage V19 to keeping electrode Z, preferably keeps the 2nd of voltage Vs and keeps offset signal.
At this moment, identical with above-mentioned Fig. 6 c reality.
Afterwards, the 1st switch portion S1 is closed, and the 2nd switch portion S2 and the S5 of memory switch portion are opened.Then, provide the 2nd declivity signal that drops to the 6th voltage V6 from the 5th voltage V5 gradually to scan electrode Y.
Afterwards, the 1st switch portion S1 is opened, and the 2nd switch portion S2 and the S5 of memory switch portion are closed.Then, the voltage of scan electrode Y rises to the 7th voltage V7 from the 6th voltage V6.
Afterwards, omit between the 2nd startup stage with above-mentioned the 1st startup stage between in the introduction of actual identical repetition.
During the 2nd memory during the 2nd replacement, Z keeps the S7 of voltage switch portion, the 1st switch portion S1, declivity switch portion S4 is an open mode.
Then, provide the 22nd voltage V22 to keeping electrode Z.At this, the 22nd voltage V22 is preferably and keeps voltage Vs.
Simultaneously, provide the 11st voltage V11 to scan electrode Y.At this, the 11st voltage V11 is preferably earth level GND.
Afterwards, Z keeps the S7 of voltage switch portion and the 1st switch portion S1 is closed, and the S8 of biased witch portion, the 2nd switch portion S2 and the S5 of memory switch portion are opened.
Then, shown in Fig. 6 i, provide and have the 3rd of the 23rd voltage V23 and keep offset signal, provide voltage to drop to the 3rd declivity signal of the 12nd voltage V12 gradually from the 11st voltage V11 to scan electrode Y to keeping electrode Z.
Afterwards, in the address period, shown in Fig. 6 j, keep in the process of the state that the 1st switch portion S1 is opened, the 2nd switch portion S2 and the S5 of memory switch portion were started by moment.Then, provide the scanning offset signal, the sweep signal (scan) that descends from the scanning offset signal is provided simultaneously to scan electrode Y.
At this, the voltage of scanning offset signal is identical with the voltage reality of earth level GND, and the voltage swing of sweep signal Scan is identical with scanning voltage Vsc reality.
Simultaneously, corresponding with this sweep signal, provide data-signal (data) to addressing electrode X.
Then, in discharge string, by sweep signal and data-signal generation address discharge.
Afterwards, Z keeps the S7 of voltage switch portion and is opened, and the 1st switch portion S1 and declivity switch portion S4 are opened.
Then, shown in Fig. 6 k, the voltage of keeping electrode Z rises to the 24th voltage V24 from the 23rd voltage V23.
Afterwards, during keeping in, Z keeps the S7 of voltage switch portion, the S8 of biased witch portion, the 1st switch portion S1 and declivity switch portion S4 and is closed, the 2nd switch portion S2 and 1ER switch portion S10 are opened.
Then, shown in Figure 61, the voltage of scan electrode Y rises to keeps voltage Vs.
Afterwards, 1ER switch portion S10 is closed, Z declivity switch portion S9 and keep the S3 of voltage switch portion and be opened.Then, scan electrode Y keeps voltage Vs, and the voltage of keeping electrode Z drops to the voltage of earth level GND.
Afterwards, during keeping in, Z declivity switch portion S7, keep the S3 of voltage switch portion and the 2nd switch portion S2 is closed, the 1st switch portion S1 and 2ER switch portion S11 are opened.
Then, the voltage of scan electrode Y drops to the voltage of earth level GND, and the voltage of keeping electrode Z rises to from earth level GND keeps voltage Vs.
During this keeping, at scan electrode Y with keep between the electrode Z and keep discharge.At this, in the address period, only in the discharge string that address discharge takes place, produce and keep discharge, can not keep discharge in the discharge string in addition.
Simultaneously, in the end, Z declivity switch portion S9, declivity switch portion S4 and the 1st switch portion S1 can be open state during keeping.
Then, shown in Fig. 6 m, provide after voltage drops to the 4th declivity signal of the 15th voltage V15 gradually from the 14th voltage V14 to scan electrode Y, voltage is kept the 14th voltage V14.
And, keep signal SUS at last to what keep that electrode Z provides
LIn the end, can provide voltage from keeping the 7th declivity signal that voltage Vs descends gradually to keeping electrode Z.
When adopting the drive division of aforesaid method application drawing 5a,, also can carry out stable driving even reduce the number of the switching device that is used in drive division.Can reduce the manufacturing unit price thus.
As mentioned above, the technology composition that is appreciated that the invention described above is that the insider of the technical field of the invention does not change technological thought of the present invention or necessary characteristics, just can implement with other concrete forms.
Therefore, should understand the above example of recording and narrating and be illustration in every respect, be not to be restriction.Than above-mentioned detailed introduction, what more can show scope of the present invention is the scope of claims, should be interpreted as the meaning of accessory rights requirement and all changes or the change form of scope and its idea derivation of equal value and all be included in scope of the present invention.
Claims (12)
1. a plasma display system is characterized in that it comprises: comprise mutual scan electrode side by side and keep electrode, reach and scan electrode and the plasma display panel of keeping the addressing electrode of electrode crossing; Be configured in the heat radiation rack at the above-mentioned plasma display panel back side; And be configured in the drive division at the above-mentioned heat radiation rack back side; Above-mentioned drive division comprises the scanning board that drive signal is provided to above-mentioned scan electrode; With the database that drive signal is provided to above-mentioned addressing electrode; With keep the retaining plate that electrode provides drive signal to above-mentioned; Reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing; The power supply of above-mentioned database, retaining plate, control panel and image processing plate is provided by above-mentioned retaining plate.
2. plasma display system according to claim 1 is characterized in that above-mentioned control panel and image processing plate carry out anti-Gamma correction, shadow tone correction and son field mapping back output to the signal of video signal of input.
3. plasma display system according to claim 1, it is characterized in that above-mentioned drive division provides and keeps offset signal to the above-mentioned electrode of keeping in the address period of son field, the above-mentioned offset signal of keeping offers the above-mentioned electrode of keeping after being transferred to above-mentioned retaining plate after by scanning board output.
4. plasma display system according to claim 1, the catercorner length that it is characterized in that the effective coverage of above-mentioned plasma display panel is below 40 inches.
5. a plasma display system is characterized in that it comprises: comprise mutual scan electrode side by side and keep electrode, reach and scan electrode and the plasma display panel of keeping the addressing electrode of electrode crossing; Be located at the heat radiation rack at the above-mentioned plasma display panel back side; And be located at the drive division at the above-mentioned heat radiation rack back side; Above-mentioned drive division comprises: the scanning board that drive signal is provided to above-mentioned scan electrode; The database of drive signal is provided to above-mentioned addressing electrode; Keep the retaining plate that electrode provides drive signal to above-mentioned; Reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing; The area of above-mentioned retaining plate is wideer than the area of above-mentioned scanning board, database and control panel and image processing plate.
6. plasma display system according to claim 5 is characterized in that above-mentioned database, retaining plate, and the power supply of control panel and image processing plate is to provide by above-mentioned retaining plate.
7. plasma display system according to claim 5, it is characterized in that above-mentioned drive division provides and keeps offset signal to the above-mentioned electrode of keeping in the address period of son field, the above-mentioned offset signal of keeping is to offer the above-mentioned electrode of keeping after being transferred to above-mentioned retaining plate after the above-mentioned scanning board output.
8. plasma display system according to claim 5, the catercorner length that it is characterized in that the effective coverage of above-mentioned plasma display panel is below 40 inches.
9. a plasma display system is characterized in that it comprises: comprise mutual scan electrode side by side and keep electrode, reach and scan electrode and the plasma display panel of keeping the addressing electrode of electrode crossing; Be located at the heat radiation rack at the above-mentioned plasma display panel back side; And be located at the above-mentioned heat radiation rack back side, provide drive signal to the above-mentioned electrode of keeping, and comprise the retaining plate of power supply unit.
10. plasma display system according to claim 9 is characterized in that establishing the scanning board that drive signal is provided to above-mentioned scan electrode again at the above-mentioned heat radiation rack back side; The database of drive signal is provided to above-mentioned addressing electrode; Reach the control panel and the image processing plate that the signal of video signal of input are carried out signal Processing; The area of above-mentioned retaining plate is wideer than the area of above-mentioned scanning board, database and control panel and image processing plate.
11. plasma display system according to claim 9, it is characterized in that providing and keeping offset signal to the above-mentioned electrode of keeping in the address period of son field, the above-mentioned offset signal of keeping is provided to the above-mentioned electrode of keeping after being transferred to above-mentioned retaining plate after by above-mentioned scanning board output.
12. plasma display system according to claim 9, the catercorner length that it is characterized in that the effective coverage of above-mentioned plasma display panel is below 40 inches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070025260 | 2007-03-14 | ||
| KR1020070025260A KR100857065B1 (en) | 2007-03-14 | 2007-03-14 | Plasma display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101202009A true CN101202009A (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100024547A Pending CN101202009A (en) | 2007-03-14 | 2008-01-03 | Plasma display apparatus |
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| Country | Link |
|---|---|
| KR (1) | KR100857065B1 (en) |
| CN (1) | CN101202009A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101666915B1 (en) * | 2010-04-01 | 2016-10-17 | 엘지전자 주식회사 | Display Apparatus, Plasma Display Apparatus, Multi Display Apparatus and Multi Plasma Display Apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100488448B1 (en) * | 2001-11-29 | 2005-05-11 | 엘지전자 주식회사 | Generator for sustain pulse of plasma display panel |
| KR100493972B1 (en) * | 2003-03-21 | 2005-06-10 | 엘지전자 주식회사 | Gererator for sustain pulse of plasma display panel |
| KR100731478B1 (en) * | 2005-05-30 | 2007-06-21 | 삼성에스디아이 주식회사 | Plasma display devices and circuit board for plasma display device |
| KR100749472B1 (en) * | 2005-08-02 | 2007-08-14 | 삼성에스디아이 주식회사 | Plasma display device |
| KR100704453B1 (en) * | 2005-09-08 | 2007-04-06 | 엘지전자 주식회사 | Sustain electrode driver of plasma display panel where dc/dc converter is integrated and method for driving sustain electrode |
-
2007
- 2007-03-14 KR KR1020070025260A patent/KR100857065B1/en not_active IP Right Cessation
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| KR100857065B1 (en) | 2008-09-05 |
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Open date: 20080618 |