CN1165882C

CN1165882C - Display apparatus and image display method

Info

Publication number: CN1165882C
Application number: CNB998164054A
Authority: CN
Inventors: 鸿上明彦; 孝; 中一隆; 大高广; 大泽通孝
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 1999-03-19
Filing date: 1999-03-19
Publication date: 2004-09-08
Anticipated expiration: 2019-03-19
Also published as: CN1338094A; WO2000057396A1; KR100458690B1; KR20010108280A

Abstract

In a first field which forms a frame, scan pulses with the same phases are applied to multiple adjacent display lines. In a second field, scan pulses with the same phases are applied to other multiple adjacent display lines. Thus, address operation is carried out to carry out the same image display on a plurality of lines. The present invention can greatly reduce a scan period and can realize high-brightness display in a multiple subfield mode.

Description

Display device and method for displaying image

Technical field

The present invention relates to display device such as plasm display device, particularly be applicable to the display technique of the how sub-field type of realizing high brightness, high definition and high gray shade scale.

Background technology

Can predict, display device such as plasm display device are from now on not only at image display devices such as TVs, and all have been widely used at aspects such as data presentation devices such as personal computer and display device for game computer.Corresponding with these multiple uses, desired specification is also of all kinds.For example, as televisor, if be used for HDTV, require resolution more than 1000 lines, peak brightness is at 500cd/m ²More than.In addition, the live image that also is necessary to reduce plasm display device shows the influence of peculiar false profile.On the contrary, as television image, allow interleaved demonstration.On the other hand, as data display equipment, require resolution about 800 lines, brightness is at 200cd/m ²About, in addition, be multiduty so will not fall too lowly by false profile because of rest image.And so on, the specification of requirement does not have the televisor strictness.But, under the situation of this data display equipment, because of the easy noticeable former demonstration of lining by line scan of line flicker.Like this, different to the specification requirement of display because of purposes, but recently, as the corresponding machine of multimedia, require 1 display device that various using method can be arranged, for example, require display that such interchangeability is arranged, 1 display can be corresponding to televisor and data display equipment.

But,, can not fully satisfy some specification requirements like this at present.For example, present plasm display device, if be used for televisor, the resolution of its NTSC receiving trap is about 480 lines, brightness is at 300cd/m ²About, also undesirable to the countermeasure of false profile.These 3 kinds of performances of resolution, brightness and false profile all should be improved in 1 field time.

In addition, as televisor and then also require high-contrast, for this reason, luminous when being necessary as far as possible to suppress black display.For example, in present AC type plasm display device, because of carrying out kind of a fiery (Seed fire) discharge so the type of drive that general employing writes entirely, wipes entirely.This mode corresponding with information write address discharge selectively before, temporarily whole unit are write work (writing entirely), secondly, make swim space segment in the unit of the wall electric charge that writes whole unit, and make in ion and the electronics and wipe (wiping entirely), write entirely, wipe entirely be operated in wall electric charge to the information that write and restore the time, utilize little by little space charge (planting fire) residual when wiping entirely to quicken the initial discharge of address discharge, thereby can enough low-voltages drive.But, this write entirely, in the full erase mode, because of irrelevant with the information of display image, also cause discharge when the black demonstration, so make degradation in contrast because of this is luminous.Therefore, proposed a kind of technical scheme, all sons in 1 have not been carried out this and write entirely, wipe entirely, in 1, only carried out to obtain the image of high-contrast thus about 1 time.If by this technical scheme,, delay work so make sometimes in the address discharge generation of withdrawing the son field that moment of applying full the pulse that writes, wipes entirely carries out because of kind of fiery effect is little.In order not change the image that discharge condition obtains high-contrast, there is boundary member to make the technology of black and the technology of optical filter being installed in the screen front with the screen unit.

In the plasma display panel (PDP), by reducing unit interval, increase display element and can obtain high-definition image, if but when picture dimension one regularly display element increase then have the unit volume size decreases, the problem that sparking voltage rises or luminescence efficiency reduces.Disclose a kind of technology relevant, promptly in the Japanese kokai publication hei 9-160525 communique, the boundary portion of unit is reduced or utilized this boundary portion to carry out technique for displaying energetically with high definition.

In order to reduce the influence of false profile, up to now motion various countermeasure technology.False profile is to cut apart on the basis of a plurality of sons of formation to produce when the field is carried out, the reason of its generation be since moving of observer's sight line and occur in the brightness figure on the eyeball retina irregular due to.On phenomenon, when the slow changing unit of gray shade scale is mobile on picture,, will observe the circumvallate noise (false profile) of high brightness or low-light level in certain part if observer's sight line is followed the tracks of it.Method as the influence that reduces this falseness profile, change the putting in order of son perhaps makes the whole son in 1 shorten, and perhaps makes to send out photon field and disperse, thereby false profile noise is dispersed on each pixel on the picture, makes it seem inconspicuous method.Disclose in the Japanese kokai publication hei 4-211294 communique and following relevant technology, by whole son in 1 being shortened and time over half of 1 being reduced false profile as the stop time.

In addition, in AC type plasm display device, take address/display separation type of drive.This mode is in 1 son, being used for during each discharge cell forms the address of the wall electric charge corresponding with information and utilizing the wall electric charge to carry out during the demonstration of luminous demonstration separating as the common time of whole unit to drive.The ratio of the fluorescent lifetime of son field becomes the length ratio during this demonstration.Like this, by during separating during the address and showing, simplified driving circuit significantly.

High brightness shows and can reach by the number that increases driving pulse (keeping pulse), but the problem of therefore also bringing power consumption to increase.Do not increase the number of keeping pulse in order to realize high brightness, must increase the brightness of fluorophor, increase the aperture opening ratio of unit and increase ultraviolet ray of Xe atomic emissions or the like by increasing the pressure of enclosing gas.It is directly relevant with high-luminous-efficiency that these brightness increase technology.

The factor that determines the brightness of this plasma display device be during demonstration of each son in this 1 and and the unit aperture opening ratio of screen itself.Below, use the screen structure of Fig. 2 and Fig. 3 explanation as the relevant technologies that has earlier, in addition, use Fig. 4 that the driving method example of 1 son field is described.In addition, the reason that brightness in the method can not fully improve also is described.

Fig. 2 is the exploded perspective view of above-mentioned screen structure.On transparent screen 200, be formed into right, transparent X electrode and Y electrode with ITO201, and form the high bus electrode of conductance 202 thereon.This X electrode and Y electrode form on screen alternately, and form dielectric 203 thereon, form MgO diaphragm 204 more thereon.On the other hand, utilize sand-blast on substrate 205, to form the muscle 206 of delimiting discharge cell, be strip

formation address electrode

207 and 3 look fluorophor 208 (R), 209 (G), 210 (B) in the bottom.To shield 200 and base plate 205 carry out hermetic seal altogether, the inner Ne-Xe mixed gas of enclosing 300～500 torrs.

Fig. 3 is the figure of the syndeton example of the electrode wiring of indication panel and driving circuit.The plasma scope screen forms display line with paired X electrode and Y electrode in the horizontal direction, in the direction configuration address electrode A of their intersections, at the intersection point formation discharge cell 101 of these electrodes.For the pulse of keeping at the reset pulse (aftermentioned) that applies each son field on the X electrode and during showing, the X electrode links together jointly and is connected with support driver 105.On the other hand, the Y electrode is connected with the scans I C102 that is used for each Y electrode is applied the scanning impulse during the address, and each scans I C keeps pulse in order to apply jointly during showing, again with support that driver 104 is connected.Address electrode is connected with each address IC (not shown) and is used for applying and the pulse of information corresponding address.

Fig. 4 is illustrated in during the address of 1 son and is applied to a routine driving voltage waveform on X electrode and the Y electrode during showing.Can be divided into during the address reseting period prepared the address and scan period two parts, in order reliably and easily to carry out wiping and, carrying out kind of a fire discharge of a former son wall electric charge that forms at reseting period writing of carrying out of scan period.The reset pulse 400 of Fig. 4 adds to all X electrode (X jointly ₁～X ₄₈₀), make producing strong discharge on all row and between the Y electrode.When reset pulse 400 drops to 0V when following, between X electrode and Y electrode, the electric field that produces owing to wall electric charge itself produces from erasure discharge, thus, all wiped the wall electric charge that produces because of reset discharge, simultaneously, the residual space charge in the discharge cell space is as the kind fire that writes discharge usefulness of scan period next time.Press Y in scan period ₁, Y ₂... Y ₄₈₀The order of electrode applies scanning impulse 401, the selection that utilizes scanning impulse 401 to go.Address electrode is applied and information corresponding address pulse 405, when scanning impulse 401 and address pulse 405 are consistent in time, between A electrode and Y electrode, produce and write discharge.Write discharge as triggering with this, between X electrode (being biased 404) and Y electrode, produce discharge, formation wall electric charge on X electrode and Y electrode at the discharge cell that has carried out writing discharge.Having formed the X electrode during discharge cell utilization next demonstration of wall electric charge and the pulse 402,403 of keeping alternately of Y electrode shows discharge and shows luminous.The discharge cell that does not apply address pulse 405 does not produce and writes discharge, does not form the wall electric charge yet, so, even the pulse of keeping that applies during the demonstration or not luminous yet.

Secondly, the difficulty that improves brightness in the example of plasm display device is described.The electrode wiring of the above-mentioned screen that exemplifies out as relevant technologies is the situation of XY/XY type, and X electrode and Y electrode connect up alternately.As shown in Figure 3, display line forms on paired X electrode and Y electric discharge between electrodes unit 101, has not luminous zone 300.If do not produce discharge and then become and delay work in the luminous zone at this, so the luminous zone must be enough not wide for this.This can make the aperture opening ratio as the ratio of the luminous component of screen reduce, and its aperture opening ratio of screen in the past is about 30%.If aperture opening ratio is so low, then Ping luminosity will step-down.

In addition, about driving method, 1 son field has during the address and during showing, the decision luminosity be show during.But, reseting period and scan period are arranged during this address, at reseting period, fully reduce, so the time about needs 160 μ s because of making space charge.In addition, because of must form the wall electric charge reliably in the writing of scan period, so the width of scanning impulse needs the time of 1.5 μ s to 2.0 μ s, when line number was 480 row, scan period must be more than 720 μ s.If as HDTV, line number must be more than 1.6ms during the address of this 1 son field more than 1000 row.But, for live image, for example in the demonstration of 256 grades high gray shade scale, in order fully to reduce the influence of false profile, the number of son field must be 10～12 son fields, when carrying out such driving, only just the All Time of 1 (about 16.7ms) is taken during address and be over, almost can not be provided with during the demonstration.Not enough 1ms event for example, promptly enables to be provided with during the demonstration, because of can not guarantee brightness.For during prolonging demonstration, be 6 if establish a son number, though can reach 7ms during the demonstration, gray shade scale becomes about 64, reduce just difficulty of false profile.

In screen structure and the driving method, when carrying out the high definition demonstration, gray shade scale is few in such relevant technologies, and false profile improves also insufficient, can not obtain enough brightness again.

In this relevant technologies, it is conflicting improving the sharpness of image and reducing false profile.That is, in order to realize high-definition image, must increase the demonstration line number, for this reason, the time of distributing to 1 row shortens.Specifically, in the driving of plasma scope screen, add the capable selection of scanning impulse successively, all pixels on the row of having selected are carried out write corresponding with information (address) discharge.Therefore, when line number becomes for a long time, the pulse width of the scanning impulse of distributing to the row selection is narrowed down.But, to AC type screen, fully give birth to, restrain in order to make the address discharge, need the regular hour.Therefore, can not merely be inversely proportional to the pulse width of scanning impulse is narrowed down with the line number increase.So, the pulse width of scanning impulse is narrowed down, simultaneously, also reduce a son number, show like this.

If sub-number of fields reduces, the not only gray shade scale influence that reduces but also be difficult to alleviate false profile.Example as the influence that alleviates false profile, also have the ratio coded representation different with 2 carry system codes with the demonstration time span of son field, the son field more than 2 that shows that time span equates is set especially, by make this a little light (work) and do not light (not working) because of pixel and etc. different, can reduce the technology of the false profile of display image, at this moment, if reduce a son number, not only be difficult to design the son field that these demonstrations time equates, and the progression of gray shade scale also reduces.

In above-mentioned relevant technologies, in order to obtain the image that high definition shows, effectively utilize display area, use a spot of electrode to form highdensity pixel, perhaps, in order to tackle false profile, or in all the son field shortens to during the part, or increase sub-number of fields, and still, preventing and shorten address time etc. and but do not consider any measure for the false profile of following high definition.

The objective of the invention is to, provide a kind of can high resolution displayed, under the situation of high gray shade scale, improved new technology false profile and image high brightness.

Summary of the invention

For achieving the above object, the present invention is:

A kind of display device of display image signals is characterized in that, comprising:

Display part is made up of display line, and each shows that the provisional capital is to be made of a plurality of X and Y electrode, and is parallel to each other by the setting of XY/YX order;

Scanning impulse generation circuit is used to produce scanning impulse;

Sweep circuit, be used in described the 1st and the 2nd that constitute a frame the 1st, a plurality of display lines of described Y electrode are applied the described scanning impulse of homophase, and in described the 2nd, a plurality of display lines of described X electrode are applied the described scanning impulse of homophase; And,

Driving circuit is used for providing the demonstration pulse to described display line, wherein, according to the picture signal in the described sweep circuit described display part is carried out address function, utilizes the described display line of described demonstration pulsed drive, so as to display image signals.

Display part has following structure, and wherein a plurality of X and Y electrode are parallel to each other by the setting of XY/YX/XY/YX... order, with described a pair of XY or YX form a display line and leave described two X electrodes and the Y electrode and with the address electrode of its cross-over configuration;

Scanning impulse generation circuit is used to produce scanning impulse;

Sweep circuit, be used in described the 1st and the 2nd that constitute a frame the 1st, the a plurality of described Y electrode of first display line is applied the described scanning impulse of homophase, and in described the 2nd, a plurality of X electrodes of second row are applied the described scanning impulse of homophase; And,

Scanning impulse generation circuit is used to produce scanning impulse;

Sweep circuit, be used in described the 1st and the 2nd that constitute a frame the 1st, the a plurality of X electrodes of the vicinity of first display line are applied the described scanning impulse of homophase, and in described the 2nd, a plurality of Y electrodes of second row are applied the described scanning impulse of homophase; And,

Display part has following structure, and in this display part, a plurality of show electrode X be arranged in parallel _(i), i=1～n wherein, n is a positive number, address electrode separates and cross-over configuration with described show electrode;

Scanning impulse generation circuit is used to produce scanning impulse; And,

Driving circuit, be used for described the 1st and the 2nd that constitute a frame the 1st the 1st during, the show electrode X in described show electrode _(4p+1)And X _(4p+2)The demonstration pulse is provided, and wherein p comprises 0 positive number, during the described the 1st the 2nd, and the show electrode X in described show electrode _(4p+3)And X _(4p+4)The demonstration pulse is provided, during the described the 2nd the 3rd, the show electrode X in described show electrode _(4p+2)And X _(4p+3)The demonstration pulse is provided, during the described the 2nd the 4th, the show electrode X in described show electrode _(4p+4)And X _(4p+5)The demonstration pulse is provided,

Wherein, use described scanning impulse and described address pulse, described display part is carried out address function according to picture signal, thereby by described demonstration pulse display image signals.

Scanning impulse generation circuit is used to produce scanning impulse; And,

Driving circuit is used to provide the demonstration pulse, so that during the on the scene the 1st, at a pair of demonstration electrode X of described demonstration with electrode _(3p+1)And X _(3p+2)Between show charging, wherein p comprises 0 positive number, during the on the scene the 2nd, at a pair of demonstration electrode X of described demonstration with electrode _(3p-2)And X _(3p+3)Between show during charging and the on the scene the 3rd, at a pair of demonstration electrode X of described demonstration with electrode _(3p+3)And X _(3p+4)Between show charging,

A kind of display device of carrying out the image demonstration is characterized in that, comprising:

Display part with following structure, wherein this display part is formed by the 1st, the 2nd screen portion, 1st, be arranged in parallel respectively a plurality of show electrodes and form display line of the 2nd screen portion, the the 1st, the 2nd screen portion with common state, leave this show electrode and address electrode arranged with its cross-over configuration, and form discharge cell at this crossover location;

Produce the scanning impulse generation circuit of scanning impulse;

The 1st address circuit, be used for by a right electrode of the show electrode of described the 1st screen portion being applied described scanning impulse, simultaneously between this show electrode and described address electrode, apply and select to use pulse, the described discharge cell of the 1st screen portion is carried out address function successively;

The 2nd address circuit, be used for by a right electrode of the show electrode of described the 2nd screen portion being applied described scanning impulse, simultaneously between this show electrode and described address electrode, apply and select to use pulse, the described discharge cell of the 2nd screen portion is carried out address function successively;

To the show electrode of the discharge cell of described the 1st screen portion that has carried out address function to supplying with 1st drive circuit for display of Alternation Display simultaneously with pulse; And

To the show electrode of the discharge cell of described the 2nd screen portion that has carried out address function to supplying with 2nd drive circuit for display of Alternation Display simultaneously with pulse,

Wherein, the display operation of the address function of described the 1st screen portion and described the 2nd screen portion has the overlapping time period, and, on adjacent 2 display lines on the border of the 1st, the 2nd screen portion, make described demonstration pulse application time section and described strobe pulse application time section non-overlapping copies mutually, carry out image at described display part and show.

The display part that possesses following structure, in this display part, the setting parallel to each other of a plurality of scan electrodes, leave this scan electrode and with its cross-over configuration address electrode, and form discharge cell in the intersection point portion of this scan electrode and this address electrode;

Produce the scanning impulse generation circuit of scanning impulse;

Voltage hold circuit, in this voltage hold circuit, described scan electrode is applied the capable selection of scanning impulse and described address electrode is applied and the pulse of information corresponding address, make by this scanning impulse and this address pulse and produce address discharge, in addition after this scanning impulse just finishes, described scan electrode applied address discharge sustain voltage be used to keep the discharge of described address; And

Supply with the driving circuit that shows with pulse to described display part,

Wherein, utilize described scanning impulse and address pulse, described display part carried out address function, and utilize described demonstration to come display image signals with pulse according to picture signal.

A kind of method for displaying image of display device, it is characterized in that, comprised display part, this display part is to be formed by the display line on it, each display line is made of a plurality of X and Y electrode, these a plurality of X and Y electrode are to be provided with by the sequential parallel of XY/YX, and the step of this method for displaying image comprises:

A plurality of display lines of utilization side in described X, Y electrode in described the 1st and the 2nd that constitute 1 frame the 1st apply the 1st step of the scanning impulse of homophase;

The a plurality of display lines of the opposing party in described the 2nd in described X, Y electrode apply the 2nd step of the scanning impulse of homophase;

Carry out the step of address function by the described the 1st and the 2nd step; And

The display line that carries out described address function is applied demonstration use pulse, thus the step that carries out image shows.

The display part that possesses following structure, in this display part, a plurality of the 1st, the 2nd paired show electrodes be arranged in parallel forming a plurality of display lines, and apply the address electrode and the cross-shaped configuration of this two electrode of address pulse;

Produce the scanning impulse generation circuit of scanning impulse;

Described the 1st show electrode is applied the sweep circuit of the scanning impulse of homophase; And

Supply with the driving circuit of mutually different demonstration to described a plurality of the 2nd show electrodes with pulse,

Utilize described scanning impulse and described address pulse, described display part carried out address function, and utilize described demonstration to carry out the image demonstration with the described display line of pulsed drive according to picture signal.In the present invention:

(1) thus display line is being carried out in the display technique of address function display image according to picture signal, constituting the 1st of 1 frame, a plurality of the 1st display lines are being applied the scanning impulse of homophase, at the 2nd, a plurality of the 2nd display lines are applied the scanning impulse of homophase, carry out address function like this.

(2) have respectively a plurality of be parallel to each other in pairs configuration and form the X electrode and the Y electrode of 1 display line and leave this two electrode and with the display technique of the address electrode of its cross-over configuration in, constituting the 1st of 1 frame, the X electrode of a plurality of the 1st display lines is applied the scanning impulse of homophase, at the 2nd, the Y electrode of a plurality of the 2nd display lines is applied the scanning impulse of homophase, carry out address function and image like this and show.

(3) have respectively a plurality of be parallel to each other in pairs configuration and form the X electrode and the Y electrode of 1 row display line and leave this two electrode and with the display technique of the address electrode of its cross-over configuration in, constituting the 1st of 1 frame, adjacent a plurality of the 1st display lines are applied the scanning impulse of homophase, at the 2nd, adjacent a plurality of the 2nd display lines are applied the scanning impulse of homophase, carry out address function and image like this and show.

(4) have respectively a plurality of be parallel to each other in pairs configuration and form the X electrode and the Y electrode of 1 display line and leave this two electrode and with the display technique of the address electrode of its cross-over configuration in, on adjacent display line, make the configuration of above-mentioned X electrode and Y electrode reversed in order ground, constituting the 1st of 1 frame, the X electrode of adjacent a plurality of the 1st display lines is applied the scanning impulse of homophase, at the 2nd the Y electrode of adjacent a plurality of the 2nd display lines is applied the scanning impulse of homophase, carry out address function and image like this and show.

(5) has parallel demonstration electrode X _(i)(i electrode i=1～n (n... positive number)) and leave this demonstration electrode X _(i)And with its address electrode A that intersects _(j)In the display technique of (j=1～k (k... positive number), j electrode), the 1st the 1st during, use to show and to use electrode X _(4p+1)Use electrode X with showing _(4p+2)(p comprises 0 positive number) carries out luminous demonstration, the 1st the 2nd during, use to show and uses electrode X _(4p+3)Use electrode X with showing _(4p+4)Carry out luminous demonstration, the 2nd the 3rd during, use to show and to use electrode X _(4p+2)Use electrode X with showing _(4p+3)Carry out luminous demonstration, the 2nd the 4th during, use to show and to use electrode X _(4p+4)Use electrode X with showing _(4p+5)Carry out luminous demonstration.

(6) has parallel demonstration electrode X _(i)(i=1～n (n... positive number), i electrode) and leave this demonstration electrode X _(i)And with its address electrode A that intersects _(j)(in the display technique of j=1～k), during the on the scene the 1st, show and use electrode X _(3p+1)Use electrode X with showing _(3p+2)(p comprises 0 positive number) is paired, only uses this to show discharge to showing with electrode, during the on the scene the 2nd, shows and uses electrode X _(3p+2)Use electrode X with showing _(3p+3)In pairs, only use this show discharge with electrode, during the on the scene the 3rd, show and use electrode X showing _(3p+3)Use electrode X with showing _(3p+4)In pairs, only use this to show discharge with electrode to showing.

(7) by the show electrode that covers with the dielectric layer that is parallel to each other the group with 1 address electrode on crisscross with it is being constituted discharge cell and this discharge cell is being configured in the rectangular display technique that constitutes display frame, common configuration address electrode and in the 1st screen portion of the screen that constitutes this display frame and the 2nd screen portion by a right electrode of the show electrode that scans the 1st screen portion successively, simultaneously, between this show electrode and address electrode, apply and select to use pulse, all these discharge cells to the 1st screen portion carry out address function successively, all these show electrodes of the 1st screen portion of this discharge cell by this having been carried out address function are kept pulse and are shown and keep operation applying alternation simultaneously, by a right electrode of the show electrode that scans the 2nd screen portion successively, simultaneously, between this show electrode and address electrode, apply and select to use pulse, all these discharge cells to the 2nd screen portion carry out address function successively, by all these show electrodes of the 2nd screen portion of this discharge cell of carrying out this address function are kept pulse and are shown and keep operation that the demonstration of the address function of the 1st screen portion and the 2nd screen portion is kept operation and had the overlapping time period applying alternation simultaneously.

(8) have a plurality of parallel sweep electrodes at least and leaving this scan electrode and form discharge cell with its a plurality of parallel address electrode that intersects and at the intersection point of this scan electrode and this address electrode, and this discharge cell is configured in the rectangular display technique, this scan electrode is applied the capable selection of scanning impulse and this address electrode is applied and the pulse of information corresponding address, discharge and write in the address that its generation is produced by this scanning impulse and this address pulse, by such address function, after this scanning impulse just finishes, scan electrode is applied to the voltage that makes this address discharge sustain after this scanning impulse applies end.

(9) in possessing the display technique that has a plurality of screen portions that address electrode constituted of intersecting respectively by the paired show electrode that constitutes display line with this show electrode, has the address electrode that is connected jointly with the 1st screen portion and the 2nd screen portion, when showing work, make during the address of the son in the 1st screen portion and the demonstration of the son in the 2nd screen portion during overlapping.

(10) in the display technique of the address electrode that possesses the 1st, the 2nd show electrode that has a plurality of paired formation display lines respectively and intersect with this two show electrode, have above-mentioned the 1st show electrode to a plurality of display lines and apply the scanning impulse of homophase and carry out the device of identical address function and use mutually different driving pulse to drive the drive division of a plurality of above-mentioned the 2nd show electrodes.

Utilize the present invention of this structure to realize the display technique of high brightness, and can reduce the sweep time during the address, and might carry out the driving of many sons, thereby can under the situation of high gray shade scale, reduce the influence of false profile.In the structure of above-mentioned (4), because of realizing the screen event brightness height of high aperture, in addition, because of identical, so can carry out stable write operation the 1st condition with the discharge of location, the 2nd place.In addition, can also reduce cross (talk) between address discharge.In addition, at this moment, because of scanning can be identical electrode at the 1st with the 2nd with electrode, so can realize the interchangeability of demonstration line by line with personal computer demonstration etc.In addition, different by making to the 1st magnitude of voltage with the 2nd address pulse that applies, can with the 1st address flash-over characteristic with the 2nd consistent address pulse voltage drive, can realize stable work.In addition, in the structure of above-mentioned (5), because of can be with all the constituting display line up and down and drive adjacent row mutually with per 4 capable 4 of parallel electrode X, so per 1 mutually available 1 only about half of time is shown.Therefore, can take into account the influence of high definition and the false profile of reduction.In the structure of above-mentioned (6), per 3 row are carried out 3 drive mutually, 1 is divided into during 3, each can show during separately mutually, so, shorten to time of about 1/3 of 1 during can demonstration with 1 row.In the structure of above-mentioned (7), because of carry out in the 1st screen portion address function during show in the 2nd screen portion and to keep operation, so the time availability height can apply a plurality of pulses of keeping, can realize high brightness.In addition, in the common up and down structure that connects up of screen, can reduce the quantity of address electrode driving circuit, can reduce cost at address electrode.

Description of drawings

Fig. 1 is the figure of the structure example of the driving circuit that uses in the device of the present invention.

Fig. 2 is the exploded perspective view as the plasma screen of the relevant technologies that has earlier.

Fig. 3 is the driving circuit structure figure as the XY/XY type screen of the relevant technologies that has earlier.

Fig. 4 is the driving voltage waveform figure as the screen of the relevant technologies that has earlier.

Fig. 5 is the figure of the driving voltage waveform example of the driving circuit that uses in the device of the present invention of expression.

Fig. 6 is the figure of the display packing example of expression device of the present invention.

Fig. 7 is the figure of explanation screen aperture opening ratio.

Fig. 8 is the figure of the driving voltage waveform example of the driving circuit that uses in the device of the present invention of expression.

Fig. 9 is the figure of the structure example of the driving circuit that uses in the device of the present invention.

Figure 10 is the figure of the structure example of the driving circuit that uses in the device of the present invention.

Figure 11 is the figure of another driving voltage waveform example of the driving circuit that uses in the device of the present invention of expression.

Figure 12 is the figure of display packing example of the screen display unit (OK) of expression device of the present invention.

Figure 13 is the figure of the sub-field structure example of expression device of the present invention.

Figure 14 is the figure of the driving voltage waveform example of the driving circuit that uses in the device of the present invention of expression.

Figure 15 is the figure of the structure example of expression device of the present invention.

Figure 16 is the figure of another structure example of expression device of the present invention.

Figure 17 is the figure of expression another driving voltage waveform example of the present invention.

Figure 18 is the figure of another sub-field structure example of expression device of the present invention.

Figure 19 is the figure of another sub-field structure example of expression device of the present invention.

Figure 20 is the figure of display packing example of the screen display unit (OK) of expression device of the present invention.

Figure 21 is the figure of another sub-field structure example of expression device of the present invention.

Figure 22 is the figure of another driving voltage waveform example of the driving circuit that uses in the device of the present invention of expression.

Figure 23 is the figure of the structure example of the driving circuit that uses in the device of the present invention of expression.

Figure 24 is the figure of the driving method example of expression device of the present invention.

Figure 25 is the figure of the scan method example on the expression screen top of using in the device of the present invention.

Figure 26 is the figure of the scan method example of the expression screen bottom of using in the device of the present invention.

Figure 27 is the figure of screen configuration example of the band horizontal bar of expression device of the present invention.

Figure 28 is the figure of driving method example of the screen of expression band horizontal bar of the present invention.

Figure 29 is the figure that the phase relation of pulse and address pulse is kept in the demonstration of expression device of the present invention.

Figure 30 is the scanning impulse of explanation device of the present invention and the figure of discharge condition.

Figure 31 illustrates the scanning impulse that device is arranged earlier and the figure of discharge condition.

Figure 32 is the figure that is applied to the voltage waveform example on each electrode of device of the present invention.

Figure 33 is the figure of another voltage waveform example during the address of expression device of the present invention.

Embodiment

Below, state the present invention with reference to the accompanying drawings in more detail.

Use Fig. 5 and Fig. 6 that the 1st example of the present invention is described.

Fig. 6 is the figure of the display packing of explanation device of the present invention.The picture signal that TV signal sends 1,3 at the 1st, 5... is capable, but to the demonstration of this signal be with (1,2) (3,4) (5,6) ... 2 row carry out same demonstration for one group.In the 2nd, the signal that send 2,4 in the picture signal, 6... is capable, but to the demonstration of this signal be with (2,3) (4,5) (6,7) ... 2 row carry out same demonstration for one group.Like this, in the 1st and the 2nd, carry out the same demonstration of 2 row by the delegation of staggering.Now, when being the picture signal of high definition the demonstration line number resembles HDTV, show that line number is more than 1000 row.When such high-definition image was carried out same demonstration with 2 row, the resolution of vertical direction reduced.Standard as resolution reduces has the Ke Er coefficient, and when the Ke Er coefficient was 0.7, resolution was about 700 lines.But the reduction CRT of this resolution too, and is almost out of question for the demonstration of TV.

Driving voltage waveform when Fig. 5 illustrates the present invention is used for the XY/XY screen (Fig. 3) of relevant technologies.Here, illustrate one the son the address during (reseting period and scan period) and the demonstration during the beginning part.There is the difference of the drive waveforms of relevant technologies to be 2 scan electrodes are added the scanning impulse of homophase earlier with Fig. 4.In the XY/XY of Fig. 3 screen, the row of demonstration is by (X ₁, Y ₁), (X ₂, Y ₂), (X ₃, Y ₃) ... the electrode group constitute 1,2,3... is capable, to the Y electrode apply scanning impulse with it as scan electrode.As shown in Figure 5, in the 1st, to Y ₁And Y ₂Electrode applies the scanning impulse 401 of homophase.By applying the scanning impulse of homophase, utilize address pulse address electrode be written in Y ₁And Y ₂Be the same, form identical wall electric charge with the 2nd row at the 1st row.Equally, to Y ₃And Y ₄... apply the scanning impulse of homophase, form identical wall electric charge with the 4th row at the 3rd row.During the demonstration after scan period, X electrode and Y electrode are applied mutual pulse 402 and 403 of keeping, but because of the wall electric charge that forms in scan period is identical with the 2nd row at the 1st row, thus the luminous the 1st during showing goes and the 2nd go also identical.In the 2nd, shown in the parenthetic sequence number of Y electrode as shown in Figure 5, to Y ₂And Y ₃Electrode, Y ₄And Y ₅Electrode ... the scanning impulse that applies homophase forms identical wall electric charge, makes the 2nd row and the 3rd row, the 4th row and the 5th row luminous equally during showing, carries out demonstration work like this.

Like this, by the 2 Y electrodes of going being applied the scanning impulse of homophase, carry out the identical demonstrations of 2 row, at the 1st and the 2nd, change the combination that homophase applies the row of scanning impulse, 1 row that staggers shows.

Like this, by carrying out 2 row identical demonstrations simultaneously, half that scan period becomes history.For example, in HDTV, when line number was 1000 row, if the width of the scanning impulse of 1 son field is 1.5 μ s, then scan period was 1.5 μ s * 500=0.75ms, was when lining by line scan (row sequential scanning) half.

The time of using at this moment showing is, the reseting period of supposing 1 son field is 160 μ s, even under the situation of 12 sons demonstration (can fully reduce the influence of false profile under the situation in high gray shade scale), also can reach more than the 5.7ms during in 1, showing, can carry out the demonstration of high brightness.In addition, because of being the identical demonstrations of 2 row, at 1 field interval, all discharge cells show that all this also is to carry out the main cause that high brightness shows.

Secondly, use Fig. 1, Fig. 7 and Fig. 8 that the 2nd example is described.

Fig. 3 is the electrode wiring figure that shields as the XY/XY type from the relevant technologies that has earlier.X electrode and Y electrode dispose alternately.Fig. 7 (a) illustrates this electrode configuration status.X electrode 700 and Y electrode 701 are paired, form display line.Non-light-emitting area 300 must be enough wide in order to avoid between Y electrode and X electrode, produce and misplace.This forms for a short time with regard to the size that makes discharge cell 702, thereby has reduced aperture opening ratio.

Corresponding therewith, in the XY/YX type screen of Fig. 7 (b), 2 Y electrodes 705 of configuration between X electrode 704, the electrode adjacent with non-display area 300 is Y electrode and Y electrode, or X electrode and X electrode, therefore, 2 electrodes adjacent with non-display area keep the pulse homophase, do not discharge.So, can form non-display area 300 very narrow, thereby can increase viewing area 706.Therefore, can be very big at the aperture opening ratio of this screen, can improve luminosity.

Shield the situation of carrying out in the identical demonstration of 2 row for this XY/YX type of use, the structure example of its driving circuit is shown in Fig. 1, and its driving voltage waveform is illustrated in Fig. 8.The plasma scope screen 100 of Fig. 1 carries out the electrode wiring of XY/YX type, at the intersection point formation discharge cell 101 of paired X, Y electrode and address electrode.Between adjacent 2 Y electrodes and be non-light-emitting area 106 between adjacent 2 X electrodes, at this occulter is set and improves the light and shade contrast.(Y between the adjacent Y electrode ₁And Y ₂, Y ₃And Y ₄...) be connected with the scans I C102 of output scanning pulse more common the connection, scans I C102 is connected with the support driver 104 of keeping pulse jointly.On the other hand, (X between the adjacent X electrode ₂And X ₃, X ₄And X ₅...) be connected with the scans I C103 of output scanning pulse more common the connection, scans I C103 is connected with the support driver 105 of keeping pulse jointly.

Fig. 8 illustrates the voltage waveform of 1 son that X electrode and Y electrode are applied in Fig. 1 structure.In the 1st, to the Y electrode apply scanning impulse with it as scan electrode, in the 2nd, to the X electrode apply scanning impulse with it as scan electrode.In the 1st, to all X electrode (X ₁～X ₁₀₂₄) apply reset pulse 400, bias pulse 404 jointly and keep pulse 402.The Y of Y electrode ₁And Y ₂, Y ₃And Y ₄... the common connection, these electrodes are applied scanning impulse 401 successively.Because of Y ₁And Y ₂, Y ₃And Y ₄... the common connection, so display line 1 and 2,3 becomes identical demonstration with 4....On the other hand, in the 2nd, to all Y electrode (Y ₁～Y ₁₀₂₄) apply reset pulse 400, bias pulse 404 jointly and keep pulse 402.The X of X electrode ₂And X ₃, X ₄And X ₅... the common connection, these electrodes are applied scanning impulse 401 successively.Because of X ₂And X ₃, X ₄And X ₅... the common connection, so display line 2 and 3,4 becomes identical demonstration with 5....Therefore, in the 1st and the 2nd, 2 row become identical demonstration.By the such X electrode and the wiring and the driving method of Y electrode, in the 1st and the 2nd, 2 electrodes that apply the scanning impulse of homophase become adjacent all the time electrode.Therefore, in the 1st and the 2nd, the condition of discharging because of the address is identical so can obtain stability in discharge.

Secondly, use Fig. 9 that the 3rd example is described.Screen 100 the X electrode and the wiring of Y electrode are the XY/YX types, and be identical with the situation of Fig. 1, but the situation of the common connection status of 2 scan electrodes of identical demonstration and Fig. 1 of carrying out at 2 row is different.In the structure of Fig. 9, the Y of Y electrode ₂And Y ₃, Y ₄And Y ₅... the common connection again is connected with support driver 104 with the scans I C102 of output scanning pulse respectively.On the other hand, the X of X electrode ₁And X ₂, X ₃And X ₄... the common connection again is connected with support driver 105 with scans I C103 respectively.In the 1st, the X electrode as scan electrode, is applied scanning impulse successively to it, make display line 1 and 2,3 be identical demonstration with 4.In the 2nd, the Y electrode as scan electrode, is applied scanning impulse successively to it, make display line 2 and 3,4 be identical demonstration with 5.Be that with the situation difference of Fig. 12 scan electrodes of scanning impulse that apply homophase are not adjacent all the time in the 1st and the 2nd, insert other 2 show electrodes therebetween.According to the structure of Fig. 9, because of the 1st so working stability identical with the state of the 2nd address discharge, in addition, because of the discharge cell of the scanning impulse that applied homophase non-conterminous, so can reduce the cross (talk) that discharges in the address.

Secondly, use Figure 10 and Figure 11 that example 4 is described.In Figure 10, screen 100 is electrode wirings of XY/YX type, and is identical with the situation of Fig. 1, but the Y electrode is connected with scans I C102 respectively, and this scans I C is connected with support driver 104 more jointly.The X electrode all is connected with support driver 105 jointly.

Figure 11 illustrates the driving voltage waveform example of X electrode and Y electrode.In the 1st, to all X electrode (X ₁～X ₁₀₂₄) apply reset pulse 400, bias pulse 404 jointly and keep pulse 402.To the Y electrode, to Y ₁And Y ₂, Y ₃And Y ₄... apply the scanning impulse 401 of homophase successively.Therefore, display line 1 and 2,3 becomes identical demonstration with 4....In the 2nd, all X electrodes are applied reset pulse 400, bias pulse 404 and keep pulse 402.To the Y electrode, to Y ₂And Y ₃, Y ₄And Y ₅... apply the scanning impulse of homophase successively.Like this, as the method for exporting the scanning impulse of homophase with each scans I C, the method that the method for utilizing the signal processing parts such as shift register be placed in the scans I C to control the scanning impulse of exporting homophase is arranged and the scans I C of the scans I C of odd indexed and even number sequence number is separated as independent IC (generally, an IC has 64 outputs).At this moment, can be by 2 layers of FPC formations such as (flexible print circuits) from scans I C to the connection of screen electrode.When such Y electrode being fixed as scan electrode and applies the scanning impulse of homophase by each scans I C, 2 Y electrodes that apply the scanning impulse of homophase in the 1st become adjacent electrode, and 2 Y electrodes that apply the scanning impulse of homophase in the 2nd become non-conterminous electrode.Like this, under the 1st situation different,, can realize stable address discharge work by changing magnitude of voltage at the 1st and the 2nd middle address pulse with the driving condition of the 2nd middle address discharge.When the 1st adjacent electrode is applied the scanning impulse of homophase, because of discharge ionization voltage low, so code 1100 that in Figure 11, occurs, apply low address pulse voltage Va1, when the 2nd non-conterminous electrode is applied the scanning impulse of homophase, because of the discharge ionization voltage height, so the code 1101 that occurs in Figure 11 applies high address pulse voltage Va2.

In addition, because of being fixed on applying of scanning impulse on the Y electrode like this and scans I C being connected with each Y electrode, so the switching by TV and personal computer show can realize lining by line scan, can also realize showing without staggered scanning personal computer that show, flicker free.

Secondly, use Figure 12～Figure 15 that the 5th example is described.Here, the Plasma Display electrode all is the X electrode, begins serial number from the top of shielding.

Figure 12 is the right formation method of expression show electrode X of the present invention and the figure of display packing example.The structure of Figure 12 has been to use the example of 13 show electrode X and 5 address electrodes.At first, 1 frame (1/30 second) TV signal is divided into the 1st and the 2nd (1/60 second), and then, be divided into the 1st with the 1st during and the 2nd during, be divided into the 3rd with the 2nd during and the 4th during.At this moment, when equating during the 1st and during the 2nd, during the 3rd and during the 4th, they are respectively 1/120 second.

The 1st the 1st during, X ₍₁₎-X ₍₂₎, X ₍₅₎-X ₍₆₎, X ₍₉₎-X ₍₁₀₎Form in pairs display line, with the intersection point of address electrode on form display unit.At the many screens of show electrode number, X _(4p+1)-X _(4p+2)(p comprises 0 positive number) forms display line in pairs.Address discharge is that to this show electrode X centering applies scanning impulse and writes discharge by address electrode A.During showing, to these 2 right show electrode X apply polarity upset the pulse of keeping make and show discharge (keeping discharge) generation.To not forming the electrode X of display line ₍₃₎, X ₍₄₎, X ₍₇₎, X ₍₈₎, X ₍₁₁₎And X ₍₁₂₎Neither apply scanning impulse and do not apply again and keep pulse, but apply the DC voltage that misplaces electricity that is used for preventing with adjacent electrode.

The 1st the 2nd during, X ₍₃₎-X ₍₄₎, X ₍₇₎-X ₍₈₎, X ₍₁₁₎-X ₍₁₂₎Form in pairs display line, on the intersection point of they and address electrode, form display unit.The screen many to the show electrode number, X _(4p+3)-X _(4p+4)(p comprises 0 positive number) forms display line in pairs.This display line just in time the 1st the 1st during the centre position of the display line that forms.That is, becoming staggered scanning during the 1st of the 1st the and during the 2nd shows.

The 2nd the 3rd during, X ₍₂₎-X ₍₃₎, X ₍₆₎-X ₍₇₎, X ₍₁₀₎-X ₍₁₁₎Form in pairs display line, with the intersection point of address electrode on form display unit.At the many screens of show electrode number, X _(4p+2)-X _(4p+3)(p comprises 0 positive number) forms display line in pairs.

The 2nd the 4th during, X ₍₄₎-X ₍₅₎, X ₍₈₎-X ₍₉₎, X ₍₁₂₎-X ₍₁₃₎Form in pairs display line, on the intersection point of they and address electrode, form display unit.At the many screens of show electrode number, X _(4p+4)-X _(4p+5)(p comprises 0 positive number) forms display line in pairs.This display line just in time the 2nd the 3rd during the middle of display line, the 2nd the 3rd during and the 4th during become staggered scanning and show.

Like this, for example resemble X ₍₂₎Show electrode is such, become the 1st the 1st during and the 2nd the 3rd during form one of electrode of display line, consider X ₍₂₎Show electrode and X ₍₁₎And X ₍₂₎Show electrode form display line in pairs, total is got up, and is identical with the ratio of the situation that becomes 1 display line with 1 show electrode X-shaped, can carry out high-definition image and show.

Such shown in the downside of Figure 12, if be located at the 1st the 1st during epideictic behaviour the 1st phase display line that forms, the 1st the 2nd during epideictic behaviour the 2nd phase display line that forms, the 2nd the 3rd during epideictic behaviour the 3rd phase display line that forms, the 2nd the 4th during epideictic behaviour the 4th phase display line that forms, then the 1st mutually and the 2nd mutually, the 3rd mutually and the 4th staggered scanning demonstration mutually, and then, the 1st the 1st mutually and the 2nd mutually altogether display line with the 2nd the 3rd also become the staggered scanning demonstration with the 4th phase display line altogether mutually.Therefore, the repeat number of demonstration has visually been risen, and improves picture quality thereby can suppress phenomenon such as flicker.

Figure 13 is the display packing of the device of embodiments of the invention, and the formation method of the son field of 4 phases is shown.Here, be that example illustrates with the situations of 3 sons, but when carrying out panchromatic demonstration, the son of operated by rotary motion more than 8.

The X of the 1st phase display line _(4p+1)-X _(4p+2)The electrode group the 1st the 1st during whole son can be set.Son is SF1, SF2, SF3 totally 3 a situation shown in the figure, in each son, be divided into the address during during (A1, A2, A3) and the demonstration (S1, S2, S3).During the address, apply scanning impulse, address electrode is applied and the pulse of information corresponding address, thereby cause that at scanning impulse and the consistent in time display unit of address pulse the address discharge forms the wall electric charge for one of paired show electrode X.During showing, for paired show electrode X apply polarity mutual change keep pulse (support pulse), have only the unit that has formed the wall electric charge during the address, utilize and keep pulsed discharge and luminous, carry out demonstration work.Here, make the number difference of keeping pulse of each son field.For example, if the ratio of the number of keeping pulse of SF1, SF2, SF3 is 1: 2: 4,, can show 8 brightness degrees then by their combination.

In addition, the X of the 2nd phase display line _(4p+3)-X _(4p+4)Electrode pair the 1st the 2nd during whole son, the X of the 3rd phase display line can be set _(4p+2)-X _(4p+3)Electrode pair the 2nd the 3rd during whole son can be set.The X of the 4th phase display line _(4p+4)-X _(4p+5)Electrode pair the 2nd the 4th during whole son can be set.

Like this, because of the full son of each phase the only about half of time memory at 1 exists, so during the show events image, can reduce false profile significantly.In addition, when display technique of the present invention is applied to the demonstration of TV signal, be used in the 1st picture signal of sending represent the 1st mutually with the 2nd mutually signal.At this moment, because of the 1st mutually with the 2nd mutually the demonstration time have about 1/2 mistiming, so also can with the picture signal of the 2nd phase as motion compensation correction signal.In addition, be used in the 2nd picture signal of sending represent the 3rd mutually with the 4th mutually signal.The 1st mutually with the 2nd mutually altogether display line with the 3rd mutually with the 4th mutually altogether the demonstration of display line carry out staggered scanning, in addition, because of TV signal also is the 1st and the 2nd interleaved signal, so directly do not carry out display image and also can not stagger even do not carry out motion compensation.In addition, when during as the correction signal of motion compensation, improving picture quality to the 4th phase shows signal.

Figure 14 illustrate the 1st the 1st during the 1st voltage waveform example that is applied to when showing mutually on each electrode.The situation of SF1 only is shown here.

To show electrode X ₍₁₎, X ₍₅₎... X _(4p+1)... apply and comprise the voltage VX1 that writes pulse 400, bias pulse 404 entirely and keep pulse 402.

At show electrode X ₍₂₎, X ₍₆₎... X _(4p+2)... on apply and make scanning impulse 401 and bias pulse 403 overlapping, in addition, comprise the voltage VX2 that keeps pulse 403.Here, scanning impulse 401 is pressed show electrode X ₍₂₎, X ₍₆₎, X ₍₁₀₎... order application time is staggered apply.

To show electrode X ₍₃₎, X ₍₇₎... X _(4p+3)... apply the voltage VX3 that comprises DC voltage 1406, be used for preventing because of show electrode X ₍₂₎Deng the keeping pulse of adjacent show electrode and producing misplace.The magnitude of voltage of this DC voltage pulse is lower than the magnitude of voltage of keeping pulse, and hope is to keep about half of the magnitude of voltage of pulse.

To show electrode X ₍₄₎, X ₍₈₎... X _(4p+4)... apply to comprise and prevent because of show electrode X ₍₅₎Deng the writing pulse entirely of adjacent show electrode and producing misplace writing entirely of electricity and prevent from pulse 1407 and prevent to produce the voltage VX4 that misplaces electric DC voltage 1408 because of keeping pulse.This writes the magnitude of voltage that prevents pulse entirely from writing entirely more than the value after pulse 400 deducts discharge ionization voltage.

On the other hand, address electrode is applied to comprise to write entirely prevent pulse 1409 and with information corresponding address pulse 405 and keep the VA voltage that pulsed discharge prevents DC voltage 1411.Here, A1 comprises and writes entirely during pulse and the scanning impulse 401 during the address of son shown in Figure 13, and S1 comprises and keeps during the pulse during the demonstration.

Secondly, use Figure 14 that discharge condition is described.

When to show electrode X _(4p+1)Apply when writing pulse 400 entirely, with adjacent show electrode X _(4p+2)Between produce discharge.Here, adjacent electrode also has X _(4p)Electrode, but prevent pulse 1407 so do not produce discharge because of it having been applied write entirely.In addition, prevent pulse 1409 so also do not produce discharge because of address electrode also having been applied write entirely with this electrode.This writes pulse entirely and also has the effect that the information that makes the wall electric charge that writes in last height field resets.

Secondly, when the magnitude of voltage that writes pulse 400 entirely reduces, because of writing the wall electric charge that produces in the discharge abundant (magnitude of voltage that writes pulse entirely is enough big) entirely, so produce from erasure discharge (full erasure discharge).Full erasure discharge makes and swims in the space of wall electric charge in the unit and ion and electronics are neutralized, thereby wipes because of writing the wall electric charge of discharge generation entirely.

Secondly, to show electrode X _(4p+2)Apply scanning impulse, and the address pulse 405 of address electrode between produce the address discharge, with this address discharge as triggering, at show electrode X _(4p+1)With show electrode X _(4p+2)Between produce discharge.Because this discharge is as the wall electric charge, at show electrode X _(4p+1)Last formation electronics is at show electrode X _(4p+2)Last formation ion.Secondly, during showing, at first, if to show electrode X _(4p+2)Apply of beginning most and keep pulse 403, the voltage of the wall electric charge of the ion that then during the address, forms and to keep the voltage of pulse superimposed and produce discharge.Then, by to show electrode X _(4p+1)With show electrode X _(4p+2)Apply alternately and keep pulse,, thereby can continue discharge because of the stack of itself and wall charge voltage surpasses discharge ionization voltage.To show electrode X _(4p+1)With show electrode X _(4p+2)Outside electrode apply and keep pulsed discharge and prevent DC voltage, and then, because of do not form the wall electric charge at these electrodes so do not produce discharge.

More than, narrated the 1st the 1st during the drive waveforms of SF1, the drive waveforms of SF2, the SF3 also situation with Figure 14 is the same, just keeps the number difference of pulse in their son.

Secondly, table 1 illustrate to the 1st, the 2nd the 1st, the 2nd, the 3rd, the 4th during the distribution of the voltage that applies of each electrode.Like this, impose on the voltage of each electrode by distribution, the electrode that applies scanning impulse is the show electrode X of even number sequence number, the result, and it is simple that circuit structure becomes.

Table 1

The 1st the 2nd

During the 1st during the 2nd during the 3rd during the 4th

X(1) VX1 VX3 VX3 VX1

X(2) VX2 VX4 VX2 VX4

X(3) VX3 VX1 VX1 VX3

X(4) VX4 VX2 VX4 VX2

X(5) VX1 VX3 VX3 VX1

X(6) VX2 VX4 VX2 VX4

X(7) VX3 VX1 VX1 VX3

X(8) VX4 VX2 VX4 VX2

X(9) VX1 VX3 VX3 VX1

X(10) VX2 VX4 VX2 VX4

X(11) VX3 VX1 VX1 VX3

X(12) VX4 VX2 VX4 VX2

X(13) VX1 VX3 VX3 VX1

Secondly, use Figure 15 that the circuit structure of plasma display panel (PDP) display device of the present invention is described.Plasma display panel (PDP) 100 is AC type screens.According to table 1, dual numbers sequence number show electrode X applies scanning impulse and keeps pulse, odd indexed show electrode X is applied write pulse entirely and keep pulse, so, different at even number sequence number show electrode X with connecting circuit on the odd indexed show electrode X.The portion of terminal of address electrode is stretched out from the top and the bottom of shielding 100 figure.

Secondly, describe according to signal flow shown in Figure 15.Analog picture signal 1500 utilizes A/D transducer 1501 to be transformed into digital image signal.Intensity level to this digital image signal carries out 2 scale codings, utilize bit-SF transducer (bit, sub-field converter) 1502 with its be transformed into weighting during the demonstration that meets the antithetical phrase field the signal of code.Here, if the weight of son field directly is 2 carry system codes, then the output signal of A/D transducer directly is the SF signal.But,, then to carry out the contrary correction (not shown) of γ here if picture intelligence 1500 is TV receiving signals.Temporarily be stored in the field memory 1503 with a son consistent picture intelligence, with address of each son during consistent moment read, utilize address driver A1506 and address driver B1507 that its address pulse as required high voltage signal is added to and shield 100 address electrode.

On the other hand, write pulse, scanning impulse entirely, keep signals such as pulse and DC voltage and add to show electrode X, and irrelevant with picture intelligence, these signals utilize control signal generation circuit 1505 to produce.The concrete structure of this control signal generation circuit 1505 is, in advance information write ROM, uses and read by the sequential of clk (clock signal), H (horizontal-drive signal), V decisions such as (vertical synchronizing signals).In the output of this control signal generation circuit 1505, comprise signal input scan, the support driver A1510 of scanning pulse signal, be transformed into scanning impulse and the high voltage signal of keeping pulse, impose on the X among the show electrode X again _(4p+2)According to table 1 the 1st the 1st during and the 2nd the 3rd during, this electrode is applied.In addition, other signal that comprises scanning impulse in the output of control signal generation circuit 1505 is input to scanning, supports driver B, is transformed into scanning impulse and the high voltage signal of keeping pulse, imposes on the X in the show electrode again _(4p+4)The 1st the 2nd during and the 2nd the 4th during, this electrode is applied.

In addition, the signal of comprise full write pulse signal, keeping pulse signal inputs to from control signal generation circuit 1505 and supports driver A1508, is transformed into the X that imposes on jointly behind the necessary high voltage pulse among the show electrode X _(4p+1)According to table 1 the 1st the 1st during and the 2nd the 4th during, this electrode is applied.In addition, other signal of comprise full write signal, keeping pulse signal inputs to supports driver B1509, is transformed into high voltage signal, imposes on the X of show electrode X more jointly _(4p+3)The 1st the 2nd during and the 2nd the 3rd during, this electrode is applied.In addition, to the X among the show electrode X _(4p+1), the 1st the 2nd during and the 2nd the 3rd during, during supporting driver A1508 is showing, apply DC voltage.In addition, to the X among the show electrode X _(4p+3), the 1st the 1st during and the 2nd the 4th during, during supporting driver B1509 is showing, apply DC voltage.In addition, to the X among the show electrode X _(4p+2)The 1st the 2nd during and the 2nd the 4th during, through scanning, support driver A1510 to apply to write discharge entirely to prevent pulse and keep the DC voltage pulse that pulsed discharge prevents.In addition, to the X among the show electrode X _(4p+4), the 1st the 1st during and the 2nd the 3rd during, through scanning, support driver B1511 to apply to write discharge entirely to prevent pulse and keep the DC voltage that pulsed discharge prevents.

In addition, to all address electrodes, apply through address driver A1506 and address driver B1507 and to write discharge entirely and prevent pulse and keep the DC voltage that pulsed discharge prevents.

Secondly, use Figure 16 and Figure 17 that the 6th example of the present invention is described.Be that with the difference of above-mentioned the 5th example 2 demonstrations that the connection by the screen electrode applied scanning impulse connect jointly with electrode, thus, the circuit number of output scanning pulse can reduce half.

Figure 16 is the figure of the electrode wiring of indication panel.The demonstration that applies scanning impulse is used Y with electrode at this ₁, Y ₂, Y ₃... expression, the opposing party's demonstration is with electrode X ₁, X ₂, X ₃... expression.This Y electrode and X electrode are every a mutual configuration.With Y ₁Demonstration show with the paired X of electrode and be and Y with electrode ₁The demonstration electrode X up and down that electrode is adjacent ₁, X ₃, this paired demonstration electricity consumption extremely shows asynchronism(-nization), does not show simultaneously.Their relation is to Y ₂, Y ₃... too.Here, Y ₁And Y ₂, Y ₃And Y ₄... be connected with scans I C (integrated circuit of scanning impulse takes place) again after connecting jointly, and then as shown in the drawing, per 2 common Y electrodes that connect are connected with Y recovery circuit 2 alternately with the Y recovery circuit 1 that pulse generating circuit is kept in conduct.On the other hand, to the X electrode, X recovery circuit 1, X recovery circuit 2, X recovery circuit 3 and the X recovery circuit 4 of keeping pulse generating circuit every the X of 4 X electrodes electrode and conduct are connected jointly.By forming the connection status of such demonstration, with the Y that is connected jointly with electrode ₁, Y ₂The X electrode X that electrode is paired up and down ₁, X ₂, X ₃Be connected with diverse circuit, even to Y ₁And Y ₂Electrode applies scanning impulse jointly, also can utilize the output waveform control of different X recovery circuits to remove to be chosen to right X electrode.Such relation is to Y ₃And Y ₄Electrode, Y ₅And Y ₆Electrode too.

Figure 17 is illustrated in the driving voltage waveform that drives under the connection status of demonstration with electrode of screen shown in Figure 16.Here, illustrate from X ₁To X ₅Electrode, from Y ₁To Y ₅The drive waveforms of electrode is one sub a voltage waveform selecting the state of L1, L5 and L9 in the display line from L1 to L9.That is, illustrate the 1st of Figure 13 the 1st during the driving condition of a son.The driving example of address erasing type is shown here.

At first, use the selection electrode of the L1 of the 1st row, to X ₁Electrode applies reset pulse 1700 and keeps pulse 1703 from recovery circuit 1.To with this X ₁The Y that electrode is paired ₁Electrode applies reset pulse 1701 and scanning impulse 1702, then applies to keep pulse 1704.Utilize this reset pulse 1700,1701 at X ₁Electrode and Y ₁Produce faint discharge between the electrode and no matter whether the discharge of the son of front is arranged, as the wall electric charge, at X ₁Form electronics on the electrode, at Y ₁Form ion on the electrode.Secondly, utilize Y ₁The pulse (not shown) of the scanning impulse 1702 of electrode and A electrode is at A electrode and Y ₁Produce discharge between the electrode, discharge as triggering, at Y with this ₁Produce from erasure discharge between electrode and the X1 electrode.Thus, wipe the wall electric charge that (wipe the address) produces because of reset pulse.Secondly, X1 electrode and Y1 electrode applied keep pulse 1703,1704, but, do not cause luminous so this keeps pulse because of there not being the wall electric charge in the display unit.Show and applying Y when luminous ₁During the scanning impulse of electrode the A electrode is not applied pulse.At this moment, the residual in advance wall electric charge that is formed by reset pulse thus, is used X ₁Electrode and Y ₁Electrode carries out by keeping the luminous work that pulse causes.

Secondly, in the non-selection row L2 of the 2nd row, to X ₂Electrode applies and is applied to Y from recovery circuit 2 ₁On the electrode keep pulse 1704 homophases keep pulse 1705.Because of keeping the pulse homophase, thus L2 capable do not miss luminous.In addition, in L3 is capable, Y ₂The pulse waveform of electrode and Y ₁The pulse waveform of electrode is identical, but because of X ₂Electrode and Y ₂Electrode keep the pulse homophase, so not luminous.

Secondly, in L4 is capable, to X ₃Electrode applies reset pulse 1700 and and Y from X recovery circuit 3 ₂Electrode keep the pulse homophase keep pulse 1705.By Y ₂Electrode and X ₃So the L4 that electrode forms is capable of keeping the pulse homophase not luminous.

Secondly, in the selection row of L5, to Y ₃Electrode apply reset pulse 1701 and scanning impulse 1707 and with the X3 electrode keep pulse inversion keep pulse 1708.This Y3 electrode keep pulse by with Y ₁Electrode and Y ₂The Y recovery circuit 1 different Y recovery circuit 2 that pulse generation uses of keeping of electrode takes place.Like this, because of to X ₃Electrode and Y ₃Electrode apply reset pulse and scanning impulse and phase place opposite mutually keep pulse, so X ₃Electrode and Y ₃Electrode becomes selecteed row in couples.

Secondly, to X ₄Electrode applies and Y from X recovery circuit 4 ₃Electrode and Y ₄The electrode homophase keep pulse 1703, L6 and L7 become non-selection row.In addition, to X ₅Electrode, from X recovery circuit 1 apply reset pulse 1700, with electrode Y ₄Homophase keep pulse.Because of this X ₅Electrode and X ₁Electrode connects jointly, so it is applied and to X ₁The pulsion phase that electrode applies pulse together.Because of X ₅Electrode and Y ₄On the electrode to keep impulse phase identical, become non-selection row so L8 is capable.

Secondly, to Y ₅Electrode applies reset pulse 1701 and scanning impulse 1709 and and X ₅Phase place is different keeps pulse 1704, Y ₅Electrode and X ₅Electrode also constitutes in pairs selects row.This Y ₅The pulse of keeping of electrode takes place from Y recovery circuit 1.

Like this, connect jointly, can make the number of scans I C reduce half by making 2 Y electrodes.At this moment capable selection can be undertaken by the combination of 4 X recovery circuits and 2 Y recovery circuits.

Secondly, use Figure 18 and Figure 19 that the 7th example of the present invention is described.Be with the difference of the 5th example, the 1st, the 2nd the 1st, the 2nd, the 3rd and the 4th during in, have at least during 1 its son put in order with other during different.The time that display packing of the present invention shows in during 4 is different with display line, so, by making the difference that puts in order of neutron field during these 4, false profile is disperseed in time with on the space.Therefore, except with the demonstration Time Compression of 1 display line within 1/2, can also further reduce false profile.

Figure 18 makes at the 1st different with putting in order of the 4th phase neutron field mutually with the 2nd phase, the 3rd mutually example.Be weighted by changing the number of keeping pulse that during the demonstration of a plurality of sons field, applies,, thus, come the representing gradation grade by controlling this luminous number that changes the led pulse of weighting of a little.Now, if the number of son field is 8, be marked with sequence number 1,2,3,4,5,6,7,8 respectively, this weighting of a little (demonstration time) is than being 1: 2: 4: 8: 16: 32: 64: 128, can obtain 256 grades of gray shade scales according to this luminous combination of a little and show.Generally carry out such arrangement in the putting in order of this child field, in the middle of the son field of weight maximum was placed on, the order that reduces (the demonstration time shortens) successively with weight before and after it disposed other son.For example, establishing putting in order of son field is 1,3,5,7,8,6,4,2.As shown in figure 18, the 1st the 1st during (the 1st phase), by this series arrangement, the 1st the 2nd during (the 2nd phase), by order in contrast to this, promptly 2,4,6,8,7,5,3,1 arrange.By such arrangement, the 1st mutually with the 2nd mutually, the form of false influencing profiles is opposite, can cancel out each other, thereby reduce the influence of false profile.In addition, the 3rd mutually and the 4th mutually too, by making putting in order of son on the contrary mutual, can reduce the influence at the false profile of the 2nd generation.

Figure 19 is other the example that son field puts in order.As a son order of arranging, except that above-mentioned arrangement, arrange son like this as having with the arrangement of the same effect of above-mentioned arrangement, the son field that weight is big is arranged in two ends, and past more middle weight is more little.For example, 8,6,4,2,1,3,5,7 etc.To combine by the method for the more little series arrangement field of weight in the middle of past more and above-mentioned method, and carry out 4 and drive mutually by sub of the big more series arrangement of weight in the middle of past more.In Figure 19, the 1st is 1,3,5,7,8,6,4,2 arrangement mutually, and the 2nd is 8,6,4,2,1,3,5,7 arrangement mutually.The 1st when arranging mutually, and false profile appears at a son centre of arranging, and the 1st when arranging mutually, and false profile appears at a son two ends of arranging.Therefore, the arrangement by the 1st phase disperseed with the time that the 2nd mutually arrangement exerts an influence false profile, thus, can make false profile not obvious.Order of its son of the arrangement of the 3rd phase is opposite with the 1st mutually above-mentioned arrangement, and order of its son of the arrangement of the 4th phase is opposite with the 2nd mutually above-mentioned arrangement.According to above-mentioned formation, false profile can be dispersed in 2 fields.

The weight that above-mentioned the 7th example is the antithetical phrase field has been carried out the example of 2 scale codings, but the invention is not restricted to this.For example, (for example, 1: 2: 2: 4: 4: 8: the sub-field structure of son field 8 etc.), the present invention also was suitable for about equally for a plurality of weights are arranged.In addition, weight the son of 2 scale codings the number of keeping pulse because the brightness of the saturated and address of fluorophor brightness discharge etc. rather than with the accurate consistent value of 2 carry system codes, generally all have 10% during design with interior error, the present invention also comprises this situation.

Secondly, use Figure 20, Figure 21, Figure 22 and table 2, the 8th example of the present invention is described.Be that with the difference of the 5th example the 5th example is the demonstration of carrying out 4 phases at 2, and the 8th example is the demonstration of carrying out 3 phases at 1.Screen use with the 5th example in the identical screen that illustrated.

Use Figure 20 that show state is described.During 1 time is divided into the 1st, during the 2nd and during the 3rd.During the 1st, make the X that shows with electrode X _(3P+1)And X _(3P+2)In pairs, form display line, utilize and keep pulse generation face between this electrode and discharge and show.During the 2nd, use the X that shows with electrode X _(3P+2)And X _(3P+3)To forming display line, utilize and keep pulse generation face discharge between this electrode.During the 3rd, use the X that shows with electrode X _(3P+3)And X _(3P+4)To forming display line, utilize and keep pulse generation face between this electrode and discharge and show.

Figure 21 is the figure of sub formation method of each phase of expression.At demonstration electrode X _(3P+1)-X _(3P+2)The 1st right phase display line in, with all sons field be configured in 1 the 1st during.At demonstration electrode X _(3P+2)-X _(3P+3)The 2nd right phase display line in, with all sons field be configured in 1 the 2nd during.At demonstration electrode X _(3P+3)-X _(3P+4)The 3rd right phase display line in, with all sons field be configured in 1 the 3rd during.Like this, because of son the compressed configuration of each phase 1 roughly 1/3 during in, so almost can suppress the influence of false profile.Be weighted during the demonstration to a plurality of son of each phase and each son by during the address and to constitute this point during the demonstration identical with the situation of the 5th example.

Figure 22 is illustrated in showing in the voltage that applies with electrode X and address electrode, the voltage of the 1st son field during the 1st.Use electrode X to showing _(3p+1)Apply and comprise the voltage VX5 that writes pulse 400, bias pulse 404 entirely and keep pulse 402.To show electrode X _(3p+2)Apply the scanning impulse 401 and the voltage VX6 that keeps pulse 403 that comprise with biasing 403 stacks.Utilize this demonstration electrode X _(3p+1)And X _(3p+2)Form display line, utilize and keep the face discharge that pulse 402 and 403 produces demonstration.On the other hand, to the electrode X between display line _(3p+3)Apply to comprise and writing discharge entirely and prevent pulse 1407 and keep the voltage VX7 that pulsed discharge prevents DC voltage 1408.To address electrode apply comprise writing full the discharge prevent pulse 1409, address pulse 405 and keep the voltage VA that pulsed discharge prevents DC voltage 1411.The effect of each pulse of these voltage VX5, VX6, VX7 is identical with VX1, VX2, the VX4 of the Figure 14 that narrates at above-mentioned example 5.But, in this example 5, be 1/2 during the full son field, and in this example 8, become 1/3.Therefore, in example 8, the number of keeping pulse of each son field is lacked than example 5 sometimes.

Table 2 is illustrated in the voltage that during the 1st, the 2nd, the 3rd 14 demonstrations is applied with electrode X.

Table 2

During the 1st during the 2nd during the 3rd

X(1) VX5 VX7 VX5

X(2) VX6 VX6 VX7

X(3) VX7 VX5 VX5

X(4) VX6 VX7 VX6

X(5) VX5 VX5 VX7

X(6) VX7 VX6 VX6

X(7) VX5 VX7 VX5

X(8) VX6 VX6 VX7

X(9) VX7 VX5 VX5

X(10) VX6 VX7 VX6

X(11) VX5 VX5 VX7

X(12) VX7 VX6 VX6

X(13) VX5 VX7 VX5

Secondly, use Figure 23～Figure 26 that example 9 is described.

Figure 23 is the figure of the structure of expression plasma display panel (PDP) of the present invention and electrode drive circuit thereof.In the plasma display panel (PDP) 100, paired show electrode X and the mutual parallel wiring of Y, with its direction configuration address electrode A of intersecting.Because of being that high definition screen event show electrode has 1024 pairs to X-Y, address electrode always has 3072 (3 constitute 1 pixel, and level is totally 1024 pixels) from top to bottom on screen.Because of the Y electrode is applied scanning impulse so 5 each electrode are connected with scans I C, scans I C separates at the upper and lower that shields, from Y ₁To Y ₅₁₂Form 1 group of scans I C 2300, from Y ₅₁₃To Y ₁₀₂₄Form the 2nd group of scans I C 2301.Each is organized scans I C and shows that the Y power recovery circuit 1 (2302) of keeping pulse is connected with Y power recovery circuit 2 (2303) with being used for applying.On the other hand, in the driving circuit of X electrode, from X ₁To X ₅₁₂Common show that the X power recovery circuit 1 (2304) of keeping pulse is connected with applying, from X513 to X1024 common with apply demonstration and keep the X power recovery circuit 2 (2305) of pulse and be connected.In addition, address electrode A is connected with the address IC that is used for applying with the pulse of information corresponding address respectively.

Figure 24 is the figure of the drives structure example of expression plasma display panel (PDP) of the present invention.Be divided into the display line that X-Y is constituted by show electrode from the 1st row to 512 groups of going and these 2 zones of group from the 513rd row to 1024 row.In each group, constitute 1 son field by the reseting period of synchronization, between stand-down, during the address with during showing, stagger in time during the different group its each.Here, the invention is characterized in, the group on screen top carry out address function (during the address) during, the group in the screen bottom shows and keeps operation (during the demonstration).Like this, carry out address function and operation is kept in demonstration at synchronization, can improve time availability, can realize the demonstration of many sons and a plurality ofly keep applying of pulse, false profile is improved and carry out high brightness to show by top and the bottom at screen.

Secondly, use Figure 24 that the concrete driving method of screen is described.The 1st son (SF1) from the 1st row to 512 row on the top of the screen of Figure 24, at first, the reseting period that applies the address priming pulse is arranged.At this, wipe the wall electric charge that in the last son field of previous field, forms, simultaneously, make the temporary transient discharge of whole top screen (write comprehensively and wipe comprehensively), stay a part of space charge (residual space charge) in the discharge cell in screen, make discharge during the next address easily by low voltage drive.In the driving on screen top, after reseting period, be provided with between a little stand-down.The upper and lower of shielding during the address is not overlapping establishes in order to make between this stand-down.During the address on screen top, apply scanning impulse from the 1st row to 512 row and scan.Applying scanning impulse from the 513rd row to 1024 row during the address of screen bottom scans.In the scanning during the address, in the time of near scanning proceeds to the boundary member that shields top and the bottom, be provided with between stand-down at this temporarily.Between this stand-down can with reseting period at synchronization, perhaps, near the scanning of the screen upper bound is carried out after the reseting period of screen bottom finishes.Like this, when shielding the bottom when the boundary portion on screen top is carried out reset discharge, confusion can take place in the border row upper wall electric charge on screen top, in order to prevent such situation, so, discharge to form the wall electric charge reliably by the address of after the reset discharge of screen bottom, shielding the upper bound row again.On screen top, be provided with during the demonstration after during the address, only make to apply and keep the discharge cell that during the address, has formed the wall electric charge after the pulse and carry out demonstration work.On the other hand, in the driving of screen bottom, overlap between the reseting period of the 1st son and the stand-down of shielding top, be right after after the reseting period, during a part of address that has screen top, thus become between stand-down, during address thereafter,, scan to the top to 513 row from 1024 row from the below of screen.In the screen bottom, it is opposite with the direction on screen top that the direction of scanning becomes like this, by such work, the scanning work of the screen boundary portion of screen bottom carried out after the reseting period on screen top finishes.When the scanning of screen bottom during near boundary portion, be provided with between stand-down, carrying out reset operation on screen top during this period.When the end of scan of screen bottom, during showing, apply and show that keep pulse shows.

Here, during showing the 2nd son (SF2) that resembles screen top when long, extend to during the demonstration on screen top between the stand-down between during the address of screen bottom and reseting period finishes always.

Figure 25 and Figure 26 are the figure of the example of the expression scan method of carrying out the identical demonstration of 2 row.Figure 25 illustrates the scan method example on screen top, and Figure 26 illustrates the scan method example of screen bottom.On the screen top of Figure 25, at the 1st, to Y ₁And Y ₂, Y ₃And Y ₄... Y ₅₁₁And Y ₅₁₂Apply scanning impulse simultaneously.Thus, 1 row and 2 is gone, 3 row and 4 are gone ... 511 row and 512 row become same demonstration.Because of TV signal is interleaved signal, like this, use signal to carry out 2 row demonstrations every 1 row.At the 2nd, to Y ₂And Y ₃, Y ₄And Y ₅... Y ₅₁₀And Y ₅₁₁, Y ₅₁₂Row apply scanning impulse simultaneously, make 2 the row and 3 the row, 4 the row and 5 the row ... become same demonstration, so as to insert the 1st 2 the row simultaneously the demonstration between the crack.Improve the quality of display image by such work.Figure 26 illustrates the scan method of screen bottom.The direction of scanning is to 513 row, to Y from 1024 row ₁₀₂₄And Y ₁₀₂₃... Y ₅₁₄And Y ₅₁₃Apply scanning impulse simultaneously.In addition, at the 2nd, to Y ₁₀₂₄, Y ₁₀₂₃And Y ₁₀₂₂... Y ₅₁₅And Y ₅₁₄, Y ₅₁₃Apply scanning impulse simultaneously.

Here, examination compares example and time availability of the present invention are arranged earlier.There are example and the present invention all to establish earlier and show that line number is 1024 row, carry out same demonstration at 2 row, and address cycle (scanning impulse width) is 2 μ s.Table 3 is the results to having example and time availability of the present invention 1 to compare earlier.

Table 3

Project the present invention has example earlier

Sub-number of fields 12 12

Address cycle (μ s) 22

Reseting period (ms) 1.9 1.9

(ms) 6.1 12.2 during the address

(ms) 4.3 2.5 during the demonstration

(ms) 1.9 0 between stand-down

Waiting time (ms) 2.4 0

The above results all is that to liken to be 1: 2: 4 during the demonstration with 12 sons: 8: 16: 32: 32: 32: 32: calculate at 32: 32: 32.In addition, so-called waiting time is meant that from finishing during the demonstration of the present invention to the time the reseting period this is to adjust the time period that during the address of screen top and the bottom it is not overlapped.As seen from the above table, the present invention compares with example is arranged earlier, extends to about 1.7 times during the demonstration, so, can correspondingly apply so much number of keeping pulse, therefore, the present invention with have example to compare can to obtain 1.7 times the brightness that example is arranged earlier earlier.

Secondly, use Figure 27 and Figure 28 that example 10 is described.

Figure 27 be illustrated in screen up and down two ones boundary member the structure example that stops the horizontal bar 2700 that the electric charge between discharge cell moves is set.For the cross (talk) of the boundary member that prevents to shield top and bottom, in example 9, be provided with between stand-down at each son, in addition, make the direction of scanning opposite, so that the scanning of the row of boundary member is carried out after reseting period finishes in the screen bottom.Different therewith, in example 10, horizontal bar is set preventing the cross (talk) between discharge cell in the boundary portion of screen, so, needn't establish between stand-down and carry out inverse scan.Because of not having between stand-down,, can apply more demonstration and keep pulse so can correspondingly prolong during showing.Therefore, can be higher than the display brightness of above-mentioned example 9.

Figure 28 is illustrated in the figure that the screen boundary portion is provided with the driving method example of the screen behind the horizontal bar.Be with the difference of Figure 24, remove between the stand-down behind the reseting period and between the stand-down among during the address and the direction of scanning of screen bottom becomes from the directions of 513 row to 1024 row.At this moment also carry out the identical demonstration of 2 row, the applying method of its scanning impulse is the same with the situation of Figure 25.Figure 26 illustrates the inverse scan of example 9, but then there is no need to carry out inverse scan in example 10.

Secondly, example 11 is described.

In example 9 and example 10, screen is divided into the upper and lower, at two parts up and down of screen, overlapped in time during during the demonstration and the address.In this driving method,,,, can on address pulse, produce the leakage voltage of keeping pulse then owing to the capacitive coupling between address electrode and the X-Y show electrode so keep pulse if apply demonstration on screen top because of address electrode is shielding up and down wiring jointly.At this moment, might cause delaying work of address function.In this example 11, illustrate and do not produce such pulse applying method that delays work.Figure 29 (a) is the figure that the waveform of the waveform of pulse and address pulse is kept in the demonstration of expression X-Y show electrode.When X-Y show electrode and address electrode generation capacitive coupling, during keeping the voltage transition of pulse, its drain voltage 2900 can appear on the address electrode.At this moment, drain voltage becomes noise, keeps the phase place of pulse and address pulse but adjust, so that produce in the time of this noise appears at during the maintenance of address pulse voltage.Figure 29 (b) illustrates typical address electrode driving circuit, generally is the push-pull type driving circuit.Address pulse is corresponding with information, and its pulse cuts in and out, and exists between tour when applying pulse.Be the time that top FET2903 or following FET2904 begin conducting between this tour, at this moment, the output impedance of circuit becomes very big value.At this moment, as if the drain voltage that enters capacitive coupling from the X-Y electrode, then the noise that produces at address electrode becomes big.If when FET2903 or the abundant conducting of FET2904, produce drain voltage, then drain voltage by FET2903 or parasitic diode 2901 or by FET2904 or parasitic diode 2902 to the diffluence of power supply direction, the noise that produces at address electrode diminishes.Like this, keep between the tour of pulse to during the maintenance of address pulse, can not have the address function that delays work by making the demonstration that is applied on the X-Y electrode.This method can realize by the phase place of adjusting address pulse or keeping pulse when cycle of address pulse and cycle of keeping pulse are concerning of ratio of integers.

Secondly, use Figure 30～Figure 33 to describe example 12 of the present invention in detail.

Figure 31 illustrates the state of the address discharge that has earlier.When pulse width is the scanning impulse 3104 of ts and address pulse 3106 when adding to Y electrode and A electrode, between address electrode and Y electrode, produce discharge with the time delay of td, flow out electric current 3103, Y electrode inflow current 3102 from address electrode.As the triggering of this discharge, between X electrode and Y electrode, produce discharge thereafter, flow out electric current 3100, Y electrode inflow current 3101 from the X electrode.Because of X electrode and Y electrode are covered by dielectric, so discharge forms the wall electric charge, being used as serves as reasons apply voltage and wall charge generation voltage and virtual voltage when being lower than discharge and keeping voltage, discharge stops.This is the time of being represented by tm, and this a series of address discharge is carried out during applying scanning impulse.The relation that therefore, tm≤ts is arranged.The time tm that finishes up to the discharge of this address is subjected to the influence of mixing ratio, gaseous tension, the electrode width of size, the Ne-Xe gas of discharge cell, the characteristic of MgO film etc. and screen structure bigger, in current screen manufacturing technology, the time of tm needs the above time of 1 μ s.

Figure 30 illustrates the waveform example of the discharge current that is added in and each electrode routine as the waveform of the scanning impulse on the Y electrode of scan electrode.The width ts that it is characterized in that scanning impulse is shorter than the time tm that finishes up to the address discharge.When the Y electrode being applied scanning impulse 3000 and address electrode is applied address pulse 3006, between address electrode and Y electrode, produce discharge through postponing discharge time behind the td, flow out electric current 3005 and flow in address electrode, inflow current 3004 flows in the Y electrode.As triggering, produce discharge with this address electrode and Y electric discharge between electrodes between X electrode and Y electrode, flow out electric current 3007 and flow in the X electrode, inflow current 3008 flows in the Y electrode.This X electrode and Y electrode discharge during, the scanning impulse that is added on the Y electrode of scan electrode finishes, voltage rises.At this moment, X electrode and Y electric discharge between electrodes die down, and discharge current reduces, but the voltage 3001 that is added on the Y electrode that is right after after scanning impulse makes X electrode and Y electric discharge between electrodes continue to carry out.At this moment, even scanning impulse finishes the X electrode and the Y electric discharge between electrodes also continues to carry out, discharge current 3002 continues to flow in the X electrode, and discharge current 3003 flows in the Y electrode.By this continuous discharge electric current 3002,3003, on X electrode and Y electrode, form enough wall electric charges as memory medium.When execute by be added in the voltage on the X electrode and be applied to electric field that the voltage 3001 on the Y electrode forms and the electric field of the wall charge generation that forms by X electrode and Y electrode and reach discharge and keep voltage when following, discharge finishes.

Address electrode is also applied the pulse 3009 of the information of different display lines, but do not produce discharge between the voltage 3001 behind the scanning impulse of the voltage of the pulse 3009 of address electrode and Y electrode.This is because this voltage 3001 is set like this, even produce discharge between the voltage of the voltage of scanning impulse and address pulse, does not also produce discharge between the voltage 3001 behind the scanning impulse and the voltage of address pulse.In addition, set the value of this voltage 3001, make and to produce the address discharge that continues between X electrode and the Y electrode.Satisfying the magnitude of voltage of these two conditions can set, this be because the magnitude of voltage of continuous discharge and the difference between the discharge ionization voltage value about tens V～hundreds of V.In addition, continuous discharge is carried out between X electrode and Y electrode, and present screen characteristics is that low between voltage ratio address electrode and the Y electrode kept in this two interelectrode discharge.

Figure 32 illustrates X electrode, the Y electrode of device of the present invention, the driving voltage waveform example of A electrode (address electrode).After the X electrode is applied reset pulse 400, during the address, the X electrode is applied bias pulse 404, the Y electrode as scan electrode is applied the voltage 3201 of scanning impulse 3200 and address discharge sustain.In this embodiment, during whole address, all apply voltage 3201.The A electrode is applied and information corresponding address pulse 405, when address pulse 405 and scanning impulse 3200 coincidences, produce discharge between address electrode and the Y electrode, with this as triggering, produce discharge between X electrode and Y electrode, this discharge continuous discharge that is used as because of voltage 3201 after scanning impulse 3200 finishes continues to carry out.During the demonstration after during the address,, during the address, carry out the address discharge, only make the discharge cell that has formed the wall electric charge show luminous applying the mutual pulse 402,403 of keeping between X electrode and the Y electrode.

Figure 33 is at another the routine voltage waveform that is applied to the scanning impulse on the Y electrode during the address.Yn electrode (n Y electrode) is set at the voltage 3300 that the address discharge does not continue during the address from ground voltage 3303, is right after after scanning impulse 3301 applies end and sets the voltage 3302 that the address discharge sustain is carried out for.This voltage 3302 applied before the moment that address discharge finishes fully, then, rose to the level of voltage 3300 that can not continuous discharge.After finishing during the address, return ground voltage 3303 again, then, during showing, apply and keep pulse.The voltage 3302 that this address discharge sustain is carried out is the same with scanning impulse on the Yn+1 electrode to postpone application time successively.Like this, the level of the voltage 3300 by not continuous discharge is set, can prevent and the address pulse of address electrode between misplace.

Like this, before the address discharge finishes, stop scanning impulse, thereafter, can make the narrowed width of scanning impulse by continuous discharge.At this moment, the width of this scanning impulse is that address electrode and Y electric discharge between electrodes are the value of the rising of this scanning impulse after triggering begins to discharge between X electrode and Y electrode.It approximately is about 0.5 μ s that address electrode and Y electric discharge between electrodes postpone, and is to carry out moment because of transferring to X electrode and Y electric discharge between electrodes, so the width of scanning impulse can be set at the value of 0.5 μ s～1.0 μ s.If establishing the width of scanning impulse for example is 0.75 μ s, then in the HDTV plasma television more than the demonstration line number is 1000 row, become 0.75ms during the address of 1 son, add the reseting period of 150 μ s and become 900 μ s (=150 μ s+0.75 μ s * 1000) during the address of 1 son.Become 10.8ms (=900 μ s * 12) after the addition during whole addresses when 12 sons drive, in 1, can be taken as during the demonstration 5.9ms (=16.7ms-10.8ms).As a result, if the cycle of keeping pulse is 6.0 μ s, then 1 the umber of pulse of keeping is (5.9ms ÷ 6.0 μ s) about 980, and compares in the past, can apply the umber of pulse of keeping more than 2 times, has increased substantially brightness.

If according to the present invention,

(1) in the driving of high-definition plasma volumetric display screen, the scanning impulse that 2 row is applied homophase carries out identical demonstration, carrying out staggered scanning at the 1st and the 2nd 1 row that staggers shows, thus, can carry out the demonstration of the many sons of high brightness, so the high gray shade scale that can fully wipe the influence of false profile shows.

(2) at adjacent parallel demonstration whole display units (OK) that form between the electrode, display line is divided into a plurality of phases more than 3, the demonstration time of each phase separately, thus, can utilize the screen of high definition to obtain the plasm display device of the few high image quality of false profile in 1.

(3) because of carrying out during the address, top and the bottom of screen and overlapping driving during showing, so the time availability height, umber of pulse is kept in the demonstration that applies can be a lot, so, have the effect that can carry out the high brightness demonstration.In addition, because of address electrode connects up jointly in the screen top and the bottom, so, can access the device that the address electrode driving circuit is few, cost is low.

(4) by utilizing Y electrode and the interelectrode voltage of X after scanning impulse stops to make the address discharge sustain, can make the narrowed width of scanning impulse, so, in high-definition plasma body display device resemble HDTV, utilize the high brightness level of having taked false profile countermeasure to show, can realize that high brightness shows.

The possibility of industrial utilization

As mentioned above, Display Technique of the present invention for plasm display device, television set, The display unit that personal computer is used, display device for game computer etc. of great use, particularly suitable in Big frame TV machine, high-definition television (HDTV) etc. show the demonstration of the picture that line number is many Device.

Claims

1. the display device of a display image signals is characterized in that, comprising:

Scanning impulse generation circuit is used to produce scanning impulse;

2. as the display device of claim 1 record, it is characterized in that: the magnitude of voltage of address pulse that is applied to described the 1st and the 2nd is different.

3. the display device of a display image signals is characterized in that, comprising:

Scanning impulse generation circuit is used to produce scanning impulse;

4. as the display device of claim 3 record, it is characterized in that: the magnitude of voltage of address pulse that is applied to described the 1st and the 2nd is different.

5. the display device of a display image signals is characterized in that, comprising:

Scanning impulse generation circuit is used to produce scanning impulse;

6. as the display device of claim 5 record, it is characterized in that: the magnitude of voltage of address pulse that is applied to described the 1st and the 2nd is different.

7. the display device of a display image signals is characterized in that, comprising:

Scanning impulse generation circuit is used to produce scanning impulse; And,

8. as the display device of claim 7 record, it is characterized in that: be divided into a plurality of sons field during the described the 1st, the 2nd, the 3rd and the 4th respectively, this child field comprises during the address and during showing, during the address, to showing that with electrode X centering at least one applies described scanning impulse, its with described address electrode between carry out with image information corresponding write discharge, during showing, utilize the residual charge that during this address, produces to keep discharge.

9. as the display device of claim 8 record, it is characterized in that: a plurality of sons fields that form during the described the 1st, the 2nd, the 3rd and the 4th in put in order at least during the the 1st, the 2nd, the 3rd and the 4th in one in be different.

10. as the display device of claim 8 record, it is characterized in that; At least one height field of carrying out described a plurality of son write discharge during before, with the described the 1st, the 2nd, the 3rd, the 4th during corresponding, to described paired demonstration with one among the electrode X apply make that all discharge cells write discharge entirely write pulse entirely, the demonstration beyond described is applied with one among the electrode X be unlikely to produce the described potential pulse that writes discharge entirely at least.

11. the display device as claim 8 record is characterized in that: the demonstration that applies described scanning impulse jointly connects with 2 in the electrode at least, is exported by different waveforms with electrode with the adjacent demonstration of electrode with this demonstration to drive.

12. the display device of a display image signals is characterized in that, comprising:

Scanning impulse generation circuit is used to produce scanning impulse; And,

Driving circuit is used to provide the demonstration pulse, so that during the on the scene the 1st, at a pair of demonstration electrode X of described demonstration with electrode _(3p+1)And X _(3p+2)Between show charging, wherein p comprises 0 positive number, during the on the scene the 2nd, at a pair of demonstration electrode X of described demonstration with electrode _(3p+2)And X _(3p+3)Between show during charging and the on the scene the 3rd, at a pair of demonstration electrode X of described demonstration with electrode _(3p+3)And X _(3p+4)Between show charging,

13. one kind is carried out the display device that image shows, it is characterized in that, comprising:

Produce the scanning impulse generation circuit of scanning impulse;

14. display device as claim 13 record, it is characterized in that: before this address function of described the 1st, the 2nd screen portion, have the reseting period that applies the address priming pulse, and have and overlapping time period of the reseting period of the 2nd screen portion interrupt between stand-down of address function of the 1st screen portion.

15. display device as claim 14 record, it is characterized in that: carrying out the scanning of the show electrode of the side in described the 1st, the 2nd screen portion successively along the direction near the border of the 1st, the 2nd screen portion, the scanning of this boundary vicinity of the 1st screen portion is carried out after the reseting period of the 2nd screen portion finishes.

16. display device as claim 13 record, it is characterized in that: in the 1st, each right side of adjacent 2 these show electrodes show electrode is applied scanning impulse with the time period, in the 2nd, each sides' of adjacent 2 this electrode pairs different with the right combination of described adjacent 2 these show electrodes show electrode is applied scanning impulse with the time period, to carry out the scanning of described the 1st, the 2nd screen portion.

17. the display device as claim 13 record is characterized in that: the border in described the 1st screen portion and the 2nd screen portion forms muscle, is used for being blocked in moving of the discharge charge that produces between discharge cell.

18. display device as claim 13 record, it is characterized in that: utilize the demonstration of described the 2nd screen portion keep operation to show electrode to the Alternation Display that applies with during the voltage transition of pulse, during the voltage that is comprised in the address pulse that the address function that utilizes described the 1st screen portion applies address electrode keeps in.

19. one kind is carried out the display device that image shows, it is characterized in that, comprising:

Produce the scanning impulse generation circuit of scanning impulse;

20. as the display device of claim 19 record, it is characterized in that: the voltage that described address discharge sustain is carried out is the magnitude of voltage that does not produce discharge between described scan electrode and described address electrode.

21. the method for displaying image of a display device, it is characterized in that, comprised display part, this display part is to be formed by the display line on it, each display line is made of a plurality of X and Y electrode, these a plurality of X and Y electrode are to be provided with by the sequential parallel of XY/YX, and the step of this method for displaying image comprises:

22. one kind is carried out the display device that image shows, it is characterized in that, comprising:

Produce the scanning impulse generation circuit of scanning impulse;

Utilize described scanning impulse and described address pulse, described display part carried out address function, and utilize described demonstration to carry out the image demonstration with the described display line of pulsed drive according to picture signal.

23. the display device as claim 22 record is characterized in that: between described the 2nd show electrode, described demonstration is different with the phase place of pulse.