CN101201995A - Plasma display device - Google Patents
Plasma display device Download PDFInfo
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- CN101201995A CN101201995A CNA2008100024570A CN200810002457A CN101201995A CN 101201995 A CN101201995 A CN 101201995A CN A2008100024570 A CNA2008100024570 A CN A2008100024570A CN 200810002457 A CN200810002457 A CN 200810002457A CN 101201995 A CN101201995 A CN 101201995A
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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
- G09G3/294—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 for lighting or sustain discharge
- G09G3/2946—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 for lighting or sustain discharge by introducing variations of the frequency of sustain pulses within a frame or non-proportional variations of the number of sustain pulses in each subfield
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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
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
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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
- H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0205—Simultaneous scanning of several lines in flat panels
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
- G09G2330/023—Power management, e.g. power saving using energy recovery or conservation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
- G09G2330/045—Protection against panel overheating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
The invention discloses a plasma display device, comprising a substrate which comprises a plurality of scanning electrodes and maintaining electrodes and an addressing electrode formed along the cross direction of the scanning electrodes and maintaining electrodes. The scanning electrodes are driven by two scanning electrodes synchronously in the mode of Dualscan so as to reduce the rising time of ER stressed on the scanning electrodes and maintaining electrodes for maintaining the pulse within the maintaining section. The invention stresses a maintaining pulse which reduces the rising time of ER on the scanning electrodes and maintaining electrodes positioned on a plasma display board, in particular on the electrodes positioned in the center of the substrate, thereby improving the picture quality of the plasma display device, reducing the heat of a driving circuit and maintaining the reliability of the device.
Description
Technical field
The present invention is plasma display system (Plasma Display Apparatus) related invention.
Background technology
Usually, plasma display panel is formed a unit string by the barrier that is formed between upper substrate and the lower basal plate, charged into neon (Ne) in each string, helium (He) or, the mixed gas of neon and helium main discharge gases such as (Ne+He) and the inert gas that contains small amount of xenon. when discharging by HF voltage, inert gas produces vacuum ultraviolet (VacuumUltravioletrays), makes the light-emitting phosphor that is formed between the barrier, thereby manifests image.Because of this plasma display panel can have frivolous structure, therefore enjoy and gaze at as second generation display device.This plasma display panel can reach two scanning (dualscan) modes that scan two sweep traces simultaneously and drive by single sweep (singlescan) mode that scans sweep trace successively.At this moment, adopt among the PDP that two scan modes drive, exist when embodying image in portion of substrate center to produce unnecessary image retention or line and reduce the problem of image quality.
Summary of the invention
The objective of the invention is provides in the plasma display system of a kind of pair of turntable driving in order to address the above problem, and prevents the image retention cut-off rule at the picture central part, improves the plasma display system of PDP image quality.Technical scheme of the present invention is:
A kind of plasma display system comprises substrate; Aforesaid substrate comprises a plurality of scan electrodes and keeps electrode, and along with above-mentioned scan electrode and keep the addressing electrode that the direction of electrode crossing forms; Drive in 2 scan electrodes two scanning (Dualscan) modes with scanning (scanning) simultaneously in the middle of the above-mentioned scan electrode, minimizing is kept interval introversive above-mentioned scan electrode and is kept the ER that keeps pulse (EnergyRecovery) rise time that electrode applies.
Preferably above-mentioned a plurality of scan electrodes and keeping in the middle of the electrode reduce and keep the ER rise time of keeping pulse that electrode applies to the scanner uni of the central part that is located at aforesaid substrate.
Preferably keep the above-mentioned ER rise time that electrode applies, be to the scan electrode that is located at remainder and keep 0.500 times to 0.875 times of ER rise time of electrode to the scanner uni of the central part that is located at aforesaid substrate.
The above-mentioned ER rise time is preferably above-mentioned hold time 0.13 times to 0.35 times of keeping pulse.
Beneficial effect: plasma display system of the present invention, to the scan electrode of plasma display panel and keep electrode, especially the electrode that is positioned at substrate center's part applies the pulse of keeping that reduces the ER rise time, can improve the image quality of plasma display system thus, reduce the heat of driving circuit, the reliability of holdout device.
Description of drawings
Fig. 1 is the oblique view of demonstration plasma display panel structure one example,
Fig. 2 shows that the electrode of plasma display panel disposes the sectional drawing of an example,
Fig. 3 is the oblique view of the relevant example of addressing electrode shape of the plasma display panel of the two turntable driving of demonstration,
Fig. 4 is divided into the sequential chart that a plurality of son fields (subfield) time-division drives an example of plasma display panel with a frame (frame),
Fig. 5 is the sequential chart of drive signal one example of display driver plasma display panel,
Fig. 6 is the picture of keeping signal one example that applies in the interval of the plasma display panel of demonstration example of the present invention,
The picture that Fig. 7 utilizes the signal of example of the present invention to broadcast result of experiment for demonstration.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described:
Fig. 1 has shown plasma display panel structure one example by oblique view.
As shown in Figure 1, plasma display panel comprises that the conduct that is formed on the upper substrate 10 keeps the scan electrode 11 of electrode pair and keep electrode 12 and be formed on addressing electrode 22 on the lower basal plate 20.
The above-mentioned electrode pair (11,12) of keeping comprises by indium tin oxide (Indium-Tin-Oxide; ITO) transparency electrode of Zu Chenging (11a, 12a) and bus electrode (11b, 12b).Above-mentioned bus electrode (11b 12b) can adopt silver (Ag), and the bus electrode that the lamination type of the metal of chromium (Cr) etc. or the lamination type of chromium/copper/chromium (Cr/Cu/Cr) or chromium/aluminium/chromium (Cr/Al/Cr) forms (11b, 12b).At this moment, bus electrode (11b, 12b) be formed on transparency electrode (11a, 12a) on, play and reduce the higher transparency electrode of resistance (11a, the effect that the voltage that 12a) causes descends.
Simultaneously, in the example of the present invention, keep electrode pair (11,12) not only can take the lamination of transparent electrode (11a, 12a) and bus electrode ((11a, 12a) only (11b 12b) forms by bus electrode also can not have transparency electrode for 11b, structure 12b).This structure is not used transparency electrode, and (11a 12a), therefore has and can reduce the advantage that substrate is made unit price.(11b 12b) also can adopt multiple materials such as photosensitive material except the above material of enumerating to be used for the bus electrode of this structure.
Scan electrode 11 and keep the transparency electrode (11a of electrode 12,12a) and bus electrode (11b, arranged 11c): extraneous light with the outside generation that absorbs upper substrate 10, reduce the black matrix" (BlackMatrix of function with the function of color saturation (Purity) that improves upper substrate 10 and contrast of the interception that reflects, BM, 15).
The black matrix" 15 of an example of the present invention is formed on the upper substrate 10, can by be formed on the 1st black matrix" 15 of barrier 21 lap positions and be formed on transparency electrode (11a, 12a) and bus electrode (11b, (11c 12c) forms the 2nd black matrix" 12b).At this, (11c 12c) can form the back physical connection to the 1st black matrix" 15 simultaneously in forming process, also can not form simultaneously, does not carry out physical connection with the 2nd black matrix" that is called as black layer or black electrode layer.
And when forming by physical connection, (11c 12c) is formed by identical material, can be formed by unlike material when rerum natura is decomposed to form for the 1st black matrix" 15 and the 2nd black matrix".
Form scan electrode 11 side by side and keep electrode 12 upper substrate 10 laminations upper dielectric layer 13 and diaphragm 14.Accumulation is by the charged particle of discharge generation on the upper dielectric layer 13; can carry out protection and keep electrode pair (11; 12) function. diaphragm 14 protection upper dielectric layer 13, prevent the influence of the sputter of the charged particle that produces when it is subjected to gas discharge, improve the release efficiency of 2 electronics.
And addressing electrode 22 is with scan electrode 11 and keep electrode 12 and intersect to form. and, form on the lower basal plate 20 of addressing electrode 22 and form lower dielectric layer 23 and barrier 21.
And lower dielectric layer 23 and barrier 21 surfaces are gone up and are formed luminescent coating.Barrier 21 by vertical barrier 21a and laterally barrier 21b be enclosed shape, the physical division discharge string prevents on the discharge string that ultraviolet ray and visible light by discharge generation be leaked to adjacency.
An example of the present invention not only can adopt barrier shown in Figure 1 21 structures, also can adopt the barrier 21 of multiple shape.For example, can adopt vertical barrier 21a and the horizontal highly different type barrier structures such as difference of barrier 21b, form the channel type barrier structure of the channel (Channel) that can be used as the exhaust passage in the middle of vertical barrier 21a or the horizontal barrier 21b at least one barrier, form the grooved barrier structure of groove (Hollow) on the barrier of at least more than one that vertical barrier 21a or horizontal barrier 21b are central.
At this, if type barrier structures such as differences, then preferably laterally barrier 21b is highly higher, if channel type barrier structure or flute profile barrier structure then are preferably in horizontal barrier 21b and go up formation channel or groove.
Simultaneously, shown in the example of the present invention and introduced R that G and B discharge string are aligned to the situation on the same line respectively, but also can adopt other shapes to arrange.For example, also can adopt R, G and B discharge string are arranged with triangle (Delta) type of rounded projections arranged. and the shape of discharge string not only can adopt quadrangle, also can adopt multiple polygons such as pentagon, sexangle.
And, the ultraviolet ray that above-mentioned luminescent coating produces during by gas discharge and luminous, produce red (R), any central visible light of green (G) or blue (B). at this, be located at upper/lower substrate (10,20) inject the He+Xe that causes discharge, inert mixed gas such as Ne+Xe and He+Ne+Xe and in the discharge space between the barrier 21.
Fig. 2 is the picture of an example of the electrode configuration of demonstration plasma display panel, and as shown in Figure 2, a plurality of discharge string of forming plasma display panel preferably dispose with matrix form.A plurality of discharge string are located at scanning electrode wire (Y1 to Ym) respectively, keep on the cross part of electrode wires (Z1 to Zm) and address electrode lines (X1 to Xn).Scanning electrode wire (Y1 to Ym) can drive successively or simultaneously, and keeping electrode wires (Z1 to Zm) can drive simultaneously.Address electrode lines (X1 to Xn) can be divided into odd lines and even lines drives or drives successively.
Electrode configuration shown in Figure 2 only is an example of the electrode configuration of plasma display panel of the present invention.Therefore, the present invention is not limited to the electrode configuration and the type of drive of plasma display panel shown in Figure 2.For example, two scanning (dualscan) modes that also can adopt central 2 scanning electrode wires of above-mentioned scanning electrode wire (Y1 to Ym) to be scanned simultaneously.At this moment, as shown in Figure 3, when plasma display system drove with two scan modes, address electrode lines (X1 to Xn) can partly be divided into upper and lower the driving in substrate center.
Fig. 4 shows by sequential chart a frame (frame) is divided into a plurality of son fields, carries out the picture of an example of time-division method of driving.Unit frame shows for realizing the time-division tone, can be divided into a certain number of for example 8 son fields (SF1 ..., SF8).And, each son field (SF1 ..., SF8) be divided into reset interval (not shown) and, between addressed area (A1 ..., A8) and, keep the interval (S1 ..., S8).
At this, can at least one field in the middle of a plurality of son fields omit the interval of resetting.For example, reset interval only initial son field or, only in the son field of the center section in the middle of initial son field and whole son field.
Between each addressed area (A1 ..., A8) in, (X) applies display data signal to addressing electrode, applies the corresponding scanning impulse of each scan electrode (Y) successively.
Respectively keep the interval (S1 ..., S8) in, to scan electrode (Y) with keep electrode (Z) and apply alternately and keep pulse, between addressed area (A1 ..., A8) form and to cause in each discharge string of wall electric charge and keep discharge.
In the brightness of plasma display panel and the unit frame shared keep discharge range (S1 ..., in S8) to keep the discharge pulse number proportional.When a frame that forms 1 image embodies with 8 son fields and 256 tones, can be in each son field successively according to 1,2,4,8,16,32,64,128 ratios distribute the different pulse numbers of keeping.If will obtain the brightness of 133 tones,, keep discharge behind son field 3 intervals and son field 8 interval each string of interior searching and get final product then in son field 1 interval.
The discharge count of keeping that is assigned to each son field can be according to the variable setting of son field weighted value in APC (AutomaticPowerControl) stage.That is, introduced the example that a frame is divided into 8 son fields among Fig. 4 for example, but the invention is not restricted to this, can change the quantity of the son field that forms a frame flexibly according to design specification.For example, a frame can be divided into 8 above son fields such as 12 or 16 son fields, drive plasma display panel.
And, be assigned to keeping discharge count and can considering γ feature or substrate properties of each son field, carry out numerous variations.For example, the tone that is assigned to son field 4 can be dropped to 6 from 8, the tone that is assigned to son field 6 is brought up to 34 from 32.
Fig. 5 is for showing in the above-mentioned son field of cutting apart the picture of an example of the drive signal of driving plasma display panel by sequential chart.
Above-mentioned son field comprises: form positive polarity wall electric charge on each scan electrode Y, respectively keeping pre-replacement (prereset) interval that forms negative polarity wall electric charge on the electrode Z, utilization is in the pre-interval wall CHARGE DISTRIBUTION that forms of resetting, the replacement of the discharge string of all pictures of initialization (reset) interval, select the addressing (address) of discharge string interval and keep selected discharge string keep (sustain) interval.
Resetting, (setup) interval and memory (setdown) are interval to be formed by creating in the interval, and the while is applied with oblique wave (Ramp-up) to all scan electrodes in the above-mentioned establishment interval, in all discharge string fine discharge takes place, and generates the wall electric charge thus.In the above-mentioned memory interval, apply simultaneously from being lower than the following oblique wave (Ramp-down) that the above-mentioned positive polarity voltage of going up the crest voltage of oblique wave (Ramp-up) descends to all scan electrode Y, discharge takes place to eliminate in all discharge string, and elimination passes through to create wall electric charge and the central unnecessary electric charge of space charge that discharge generates thus.
In between addressed area, apply the sweep signal (scan) of negative polarity successively to scan electrode, meanwhile apply and positive polarity data-signal (data) to above-mentioned addressing electrode (X).By the wall voltage that generates in voltage difference between said scanning signals (scan) and the data-signal (data) and the above-mentioned replacement interval, address discharge takes place and select discharge string.Simultaneously, between above-mentioned memory interval and addressed area in, apply the signal that keeps keeping voltage to the above-mentioned electrode of keeping.
Above-mentioned keeping in the interval to scan electrode with keep electrode and alternately apply and keep pulse, at scan electrode with keep between the electrode, kept discharge with the face discharge type.
Drive waveforms shown in Figure 5 is the 1st example that drives the signal of plasma display panel of the present invention, and the present invention is not limited to above-mentioned waveform shown in Figure 5.For example, it is interval to omit above-mentioned pre-replacement, can change the polarity and the voltage level of each drive signal shown in Figure 5 as required, apply the erasure signal of eliminating the wall electric charge to keeping electrode finishing the above-mentioned discharge back of keeping. and, only also can adopt to scan electrode Y and keep in the middle of the Z electrode any apply above-mentioned keep signal and cause keep discharge keep (singlesustain) driving separately.
Fig. 6 is the picture of keeping signal one example that applies in the interval of the plasma display panel of demonstration example of the present invention.When plasma display system adopted two scan modes to drive, as shown in Figure 3, addressing electrode can have the structure of decomposing up and down, can produce discharge delay (delay) in keeping the interval thus, can produce the center cut-off rule that reduces the PDP image quality.The present invention wishes to improve image quality by addressing this is that.
With reference to Fig. 6, then first keep signal A shown keep interval to scanning or keep that electrode applies generally keep pulse.Thisly keep the energy recovering circuit that pulse is divided into energy and do not have to show begin to be applied to electrode from figure, thus the ER first transition (ER_up) that rises gradually of signal and; Rise to keep keep after the voltage certain hour keep interval (Sus_up) and; From electrode, recover energy the ER last transition (ER_dn) that signal descends gradually.When first is kept signal (A) and is applied to all scanner unis and keeps electrode, in the plasma display system of two turntable driving the light delay phenomenon can take place, produce the cut-off rule that reduces image quality, in order to prevent its phenomenon, preferably keep shown in the signal B, reduce ER and apply again after the rise time as second.At this moment, the time of keeping discharge that arrives can be shortened, therefore the discharge delay phenomenon can be prevented.But, excessively reduce ER during the rise time, circuit loss can take place and misplace.
Therefore, as shown in Figure 3, preferably keep electrode and apply above-mentioned second and keep signal B, keep electrode to remaining scanner uni and apply first and keep signal A to being formed on scanner uni on the part of cutting apart addressing electrode.At this moment, preferably first keeps 0.500 times to 0.875 times of ER rise time a1 of signal A for second ER rise time b that keeps signal B.At this moment, keep interval in generation light delay phenomenon, prevent the circuit loss that rapid change in voltage causes simultaneously and misplace.
And, also can keep signal B and be applied to all scanner unis and keep electrode second of the present invention, and simplification device.At this moment, to all scan electrodes and keep second ER rise time of keeping signal B that electrode applies, be preferably 0.13 times to 0.35 times that holds time.At this moment, prevent to keep and the light delay phenomenon takes place in interval, prevent the circuit loss that rapid change in voltage causes simultaneously and misplace.
Use the signal of keeping of the present invention, analyze its broadcasting experiment effect.
The picture that Fig. 7 utilizes the signal of example of the present invention to broadcast result of experiment for demonstration.
With reference to Fig. 7, be presented in the picture of the leftmost side, apply above-mentioned second of reducing the ER rise time to scan electrode Y and keep signal B; Apply above-mentioned first and keep signal A to keeping electrode Z, analyze light wave waveform, then can learn light delay does not take place from the substrate left side to three central parts on right side.And, in second picture, apply above-mentioned first to scan electrode Y and keep signal A, apply above-mentioned second and keep signal B to keeping electrode Z, analyze light wave waveform from the substrate left side to three central parts on right side, then can learn light delay does not take place.And, also can learn, to all scanner unis keep electrode apply second keep signal B after, whether light delay is also arranged.
Below specifically introduced preferred example of the present invention, but be appreciated that and need only the personage who has rudimentary knowledge in the technical field of the invention, in the inventive concept and scope that in not breaking away from additional claimed range, defines, the present invention is carried out various distortion and enforcement after changing.Therefore, the present invention's change of example does not from now on break away from technology of the present invention.
Claims (4)
1. a plasma display system is characterized in that: comprise substrate; Aforesaid substrate comprises a plurality of scan electrodes and keeps electrode, and along with above-mentioned scan electrode and keep the addressing electrode that the direction of electrode crossing forms; Drive in 2 scan electrodes two scanning (Dualscan) modes with scanning (scanning) simultaneously in the middle of the above-mentioned scan electrode, minimizing is kept interval introversive above-mentioned scan electrode and is kept the ER that keeps pulse (EnergyRecovery) rise time that electrode applies.
2. plasma display system according to claim 1 is characterized in that: above-mentioned a plurality of scan electrodes and keeping in the middle of the electrode, reduce and keep the ER rise time of keeping pulse that electrode applies to the scanner uni of the central part that is located at aforesaid substrate.
3. plasma display system according to claim 2, it is characterized in that: keep the above-mentioned ER rise time that electrode applies to the scanner uni of the central part that is located at aforesaid substrate, be to the scan electrode that is located at remainder and keep 0.500 times to 0.875 times of ER rise time of electrode.
4. plasma display system according to claim 1 is characterized in that: the above-mentioned ER rise time is above-mentioned hold time 0.13 times to 0.35 times of keeping pulse.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070027321 | 2007-03-20 | ||
| KR1020070027321A KR20080085586A (en) | 2007-03-20 | 2007-03-20 | Plasma display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101201995A true CN101201995A (en) | 2008-06-18 |
Family
ID=39517145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100024570A Pending CN101201995A (en) | 2007-03-20 | 2008-01-03 | Plasma display device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20080085586A (en) |
| CN (1) | CN101201995A (en) |
-
2007
- 2007-03-20 KR KR1020070027321A patent/KR20080085586A/en not_active Application Discontinuation
-
2008
- 2008-01-03 CN CNA2008100024570A patent/CN101201995A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080085586A (en) | 2008-09-24 |
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