TW541512B - Driving method of plasma display panel in a reset period - Google Patents

Abstract

There is provided a driving method of plasma display panel in a reset period. When the display unit performs a reset operation in the sub-frame of each frame, each display unit on the panel performs the reset in an exciting mode or clear mode. The steps of exciting mode include: first, generating a first clear pulse for clearing wall charges; next, respectively generating first exciting pulse and second exciting pulse for re-exciting gas to discharge and form wall charges; and finally, generating second clear pulse for clearing wall charges. The steps of clear mode are the same as those of the exciting mode except having no step of generating exciting pulse, wherein the voltages of clear pulse and exciting pulse are increased as time is passed.

Description

541512 V. Description of invention α) —— ---- [Field of invention] The Japanese invention relates to a driving method of a plasma display panel, and in particular to a driving method of a plasma display panel during a reset period. [Background of the Invention] In the foreseeable future, people's requirements for acousto-optic services will increase the development of audio-visual equipment manufacturing technology and the innovation of imaging methods. Taking the display as an example, the conventional cathode ray tube (Cathode Ray Tube〇CRT) display has the disadvantages of large volume and serious radiation. On the cathode-ray tube display of $ inch, the daytime surface displayed on the edge of the screen is also The distorted picture of the prepared picture is bound to fail to meet people's requirements for high: quality as a skull. When digital television is broadcast, the cathode-ray tube screens that are known to be developed by analogy will gradually be eliminated. Instead, plasma display panels (Plasma Dispi panei PDP) with large size, wide viewing angle, high resolution, and the ability to display full-color video will be replaced. ’

Please refer to FIG. 1, which shows a perspective view of a plasma display panel structure. The plasma display panel is composed of a front substrate 102 and a rear substrate: a plurality of sustaining electrodes (scanning electrode) X and a plurality of scans = The electrodes (scanning electorodes) Y are staggered and arranged in parallel on the front glass substrate 102. The sustain electrodes χ and the scan electrodes γ are covered by a dielectric layer Y dielectric layer 104. The dielectric layer 104 is covered with a protective layer 106 made of magnesium oxide to protect the sustaining electrode χ, the scanning electrode Y, and the dielectric layer 104. In addition, the plurality of address electrodes A

541512 V. Description of the invention (2) (addressing electrode) is arranged in parallel on the rear substrate 108 and is covered by the dielectric layer 116. Among them, the arrangement direction of the address electrodes a and the arrangement directions of the sustain electrodes X and the scan electrodes γ are orthogonal to each other. The partition wall (r 1 b) 1 1 2 is disposed on the rear substrate 11 in a direction parallel to the address electrode a, and the fluorescent layer 1 10 is located between two adjacent partition walls 1 12. With reference to Figure 2, it shows a cross-sectional view of the structure of a plasma display panel. Except for the partition wall 1 12 which is not marked, the designations of other structures are the same as those in the first figure, please check by yourself. The cavity between the front substrate 102 and the rear substrate 108 is a discharge space 114, which is filled with a discharge gas composed of a mixture of neon and xenon. On the front substrate 102, each of the sustain electrodes X and one scan electrode γ form a pair of driving electrodes. Between each pair of driving electrodes and the corresponding address electrode A- on the rear substrate 108; a meaning of Q is shown as a display. In addition, an opaque shielding layer (bhck matriX ^ 212) is provided between the mother and the driving electrodes on the top of the front substrate ι02 to reduce the external light reflection and improve the contrast of the plasma display surface and the sheet surface. In this way, a plurality of sustain electrode electrodes Y and address electrodes A will define a display unit 200 arranged in a matrix form on the plasma display panel. Every two display units are defined between 200 and 200 ^-non-display The area is also called a dark area (shown in dark 2 in Figure 1. The shoe layer 212 is located in the non-display area 203.) The principle of the light emission of the unit 200 is briefly described below. The characteristics of the display unit are equivalent. The ground is regarded as a capacitive load. By applying a high-voltage, high-second alternating current to the electrode X !, the electrode Y of the middle electrode, the oxygen is continuously excited and discharged and emits ultraviolet light.

Page 5 541512 V. Description of the invention (3) Light. The fluorescent layer 110 emits visible light after absorbing ultraviolet light of a specific wavelength.凊 Referring to FIGS. 3A to 3B, the timing diagrams of the driving signals used to drive the display unit το are shown. The driver used to drive the display unit can usually be divided into the following phases: reset period (reset period) T1, when addressing

Address period T2 and sustain period T3. In the reset period T1, in order to ensure the correct operation of the subsequent display unit, the sustain electrode X and the scan electrode γ respectively output an erase pulse and a priming pulse to clear the display unit. In the previous driver program, the charge on the sustain electrode and the scan electrode were exhausted, and the wall charge. And once again, each early display gas discharge is excited, so that the display unit space has the necessary ions and wall charges. When this step is completed, the states of the excited ions and wall charges within each display are also made uniform. At the addressing position, the force corresponding to the display unit bit _ Γ is discharged by the display unit. In the sustaining period T3, with the memory effect of j = 7 (memorry is ""), as long as the appropriate dimension φ SUStain pulse is applied alternately between the sustaining electrode χ and the scanning γ electrode γ, Gu + Stay- 丄 ^, often hug

The gas discharge is performed abruptly, and the second and second use are continued. The driver of the dynamic display unit will reset the time period τι and the wide time period 'are: the first reset period TH, the second reset time 4 and T1 2 And the second tongue, —brother—reset 柃 & Τ13. In the first reset period T11, ",", /, the early scan electrode Y outputs a clear pulse wave Pγι.

541512 V. Description of the invention (4) is to clear the display unit to the previous driving load. At the second reset period T12, the wall electricity (PAU " Ulse) left by the display sequence epoch is used to make the discharge; 2: the excitation pulse wave is released to form a display unit to emit light Electricity required :::: The body is re-excited to each display X on the plasma display panel. Moreover, the state tends to be consistent. 4, :::::: There are two possible forms of excited ions and wall charges: gas. The first d = the way of applying to the display unit. The pulse wave dagger is excited by the V / Λ South voltage, as shown in Figure 3A. No. 1: Method: Two sustain electrodes χ are output at the display unit and a negative-polarity excitation pulse wave is output at the Γ electrode γ-the pulse wave ργ3 is cleared, and the electrode 和 ions and walls are scanned with the section τ „13 Electric #. Π Except for all the remaining excitation waves P period m, if the voltage of the excitation pulse PX2 output by the sustain electrode X is larger, or the pulses ρχ2 and ρϊ2 are excited by the sustain electrode x The larger the voltage difference between the two is, the stronger the gas is released, the more excited ions are generated in the discharge space, and the greater the consistency between the excited ions and the wall charge state of each page cell. But The milk body also emits strong ultraviolet light during the process of being excited and released, causing the fluorescent layer to emit stronger visible light. This visible light is called background light. The intensity of this background light and the reset period T12 The voltage value and form of the heartbeat pulse wave are related. The strong background light will greatly reduce the electricity. The contrast of the 4 display panel (c 〇ntrastrat 丨 0), which affects the display quality of the electric display panel ...

541512 V. Description of the invention (5) [Objective of the invention and in view of the driving method of the board, the comparison and display of reduction in resetting are displayed. According to the driving method of this paragraph, a plurality of day electrodes and a third vertical plane are displayed. When the display unit includes at least a first clear pulse in an excitation mode, a first clear pulse of the display unit of the clear pulse wave is used. Among them, the first excitation pulse wave is added. Finally, each voltage value used to clear each is followed by the steps: First, the quality of the back image generated during the target period of time is proposed, and the panel and each and every display screen are divided. An overview of the plasma display surface of a single-wave and single-wave pulse wave cell with the inner wall increasing unit] [The present invention] The clear purpose of the day surface produced during the reset period. Plasma display. Among them two electrodes, pole. In addition, the following steps are included in each formula or one, and the voltage value is used to generate the electrode to display the time of each display pulse and the second display of a single display unit, and each display has a complex display unit. In the electrode display screen, one of the resets is performed. The first display is a display sheet and the pulse wave is gradually increased, and the voltage value of the excitation pulse is renewed in the cell. The electrode generates charge. Its. And clear the first electrode, the second display and the second one with the complex action. Set the action. Connected to the second electrical excitation and the wave pole is to generate the second middle at any time, from the first mode to the first display face when the display panel is reset. The black student's wall electric response >

TW0702F.ptd Page 8 541512 5 Description of the invention (6) Wave, ‘to clear the wall in each display unit ★ The voltage value of the pulse wave # p @. The middle of the third clearing gradually increased. After that, the wall voltage of each display unit is cleared; clear 2 waves 1 to clear the inside of each display unit. The voltage value of ii ::: wave gradually increases with time. Understand, the following is a better example # μ ”, which is more obvious and easy to understand as follows. Private examples and the accompanying drawings will be described in detail [preferred embodiments] The present invention is characterized in that the display unit does not It is necessary to generate = priming pulse during the reset period (priming pulse) when displaying each subframe. When the display unit is in the excitation mode and (priming mode), the reset period Generates an excitation pulse. When the display unit is in erase mode (erase m〇 (je)), it only needs to generate erase pulses of opposite polarity (ρ 〇1 arity) during the reset period. The excitation pulse wave needs to be applied. In the present invention, the display unit generates the excitation pulse wave by simultaneously generating the opposite polarity between the sustain electrode and the scan electrode, and the voltage value slowly rises or falls with time. Please refer to FIGS. 4A to 4B, which are timing diagrams of driving signals when the display unit displays a sub-screen in the first embodiment of the present invention. As described above, the display unit generates during the reset period. Excitation pulse high voltage instantaneously increases

TW0702F.ptd Page 9 541512 V. Description of the invention (7) The background brightness of the display panel (background gl0w). Wall charge excited by the pulse wave (wall cha) Bu Yun = fa: display unit display: multiple sub-screens later. In order to improve the brightness contrast of the display panel, the brightness of the display panel does not need to be as shown in the conventional driving method to display the excitation pulses of each member, but each time a certain number is displayed. Sub: face :: The reset period of the sub-screen is reset in the excitation mode. After that, it is the background brightness of the panel. For the convenience of description, we will start with: Yes: the low reset phase is divided into two driving modes, which are to activate the J-type without significant early. When the display unit is in the excitation mode, it displays "Yuan II: and: except for the need to generate excitation pulses. When the display single master: reset period Yuzhong = 2: pulses, only need to be produced without the need to know > 4th Α In the figure, when a segment T1 at the display unit is divided into three periods, they are divided into: first; division; second, the reset period T12 and the second clearing period m. First: Π1, when the display is scanned Electrode clearing period In this embodiment, the first pulse is cleared; the pulse wave is removed. Increasing, as shown in the third place: the display mode of the display mode is 画, the display time is not earlier than 7L. At the beginning of the first 4 division period T11, all the lights that have a large L and two are not moved when being displayed on the previous sub-screen, especially in the case of :, ,, and not too early, and the previous child is displayed. .It should be noted that the position and physical characteristics of the display on the single screen with only a small amount of wall charge by Dian 3 ;: the difference between the fluorescein and the previous sub-day surface of each display unit of the board

TW0702F.pid Page 10 541512 V. Description of the invention (8) The image data are different, so in fact, the accumulation state of ions and s charge # in each display unit is also different for this purpose *. The first clear pulse wave Pγι applied to the electrode γ is a slowly rising saw-tooth wave, which is used to make the display with a large amount of wall charges accumulate a weak discharge and gradually reduce its wall charge to a certain level. Degree. In the previous day, there was no display in the trace or no charge state, and no discharge behavior occurred at this time. Therefore, this slowly rising first clear pulse PY1 can eliminate the display unit that originally had a large amount of wall charges: 3 !. In this way, it is possible to reduce the difference between the number of wall charges of the display unit that is not lit early in the previous sub-picture and the display unit in which the sub-picture is not lit. At the same time, in order to avoid vertical discharge, a first electrode can be applied to the data electrode A to avoid the excessive adhesion of 4 on the surface of the dielectric layer of the data electrode A for the driving circuit of the plasma display panel at the time of eight shots m. The scan electrode γ of the display unit applies a first excitation pulse wave. The internal if electrode x applies a second excitation pulse wave Pχ2, which is used to excite two times and form wall charges at each excitation. In this embodiment, The first Γ: Ϊγρ negative polarity 'its voltage value gradually decreases with time. Plus two for the positive polarity' its electrical value gradually increases with time in dimension in after the application of the first clear pulse & The present invention and Yu Zhigu know pole γ apply different excitation pulses with positive and negative polarities. Value series; the biggest difference between text two and t is 'the conventional technique is to apply-voltage' potential square wave on the sustain electrode; and The present invention is

TW〇7〇2F.ptd Page 11 541512 V. Description of the invention (9) Apply separately to ~ ^, as changed in step 4A. When a lift is applied to the sweep, some previously remaining gas is discharged on the display sheet. The voltage difference between the weak gas produced by the body and and ′ are also significant voltage differences. The opposite excitation pulses are shown in the sustain electrode x and the scan electrode γ. The voltage values of the excitation pulse waves are gradually added to the second excitation wave Pχ2 voltage of the sustain electrode X over time. The sum of the voltages in the first excitation wave's gradually decreasing voltage will gradually increase. At this time, in a display unit with a large load, faintness will begin to occur. It should be noted that the total voltage that actually causes the ionic gas discharge in the display unit is caused by the residual charge in the sustain electrode X and the scan electrode Υ display unit. The ionic gas in the discharge space of the display unit of equivalent voltage truly senses that due to the excitation pulses applied to the sustain electrode χ and the scan electrode γ, the bean system changes slowly, so when the ion gas feels the total ^ firm · When it is just slightly larger than the discharge starting voltage (Cfiiring voltage) of the ion gas in the display unit, a discharge phenomenon will occur. Also, because the voltage of the ion gas is only slightly higher than the starting voltage, only a weak gas discharge occurs. As for other discharge cells with less or no remaining charge, the phenomenon of micro-gas discharge occurs only when the voltage difference between the sustain electrode X and the scan electrode γ is larger at a later time. Therefore, each display unit of the entire plasma display panel will write the positive and negative excitation pulses simultaneously during the excitation period T12, and a weak gas discharge phenomenon with approximately the same intensity will be generated. According to the article, during the excitation period τ 丨 2, the voltage difference between the sustaining electrode X and the scanning electrode γ of each display unit will gradually increase with time.

TW0702F.ptd Page 12

541512 V. Description of the invention (10) *-And each display unit generates a weak gas discharge with approximately the same intensity at different time points. When a weak gas discharge is generated in the display unit, the voltage value of the total voltage of the discharge space in the display unit is reduced due to the accumulation of electric charge in the dielectric layer near the electrode. However, the quasi-1 electrode X and The voltage difference between the scan electrodes γ will continue to increase gradually with time, so in the discharge space of the display unit, the core, voltage, and voltage actually sensed by the ionic gas will gradually increase with time. When the total voltage is slightly higher than the firing voltage (firing vo 11age) of the ion gas in the display unit again, the ion gas will generate a weak discharge phenomenon again. If this is the case, each display unit of the plasma display panel will generate a weak gas discharge phenomenon with approximately the same intensity multiple times during the excitation period T1 2. In summary, during the excitation phase T12, each display cell intermittently generates several weak gas discharges. And the time for each display cell to generate a weak gas discharge varies with the state of internal charge accumulation. In this way, the display cells with different internal charge amounts and states previously will each have weaker and smaller differences in charge accumulation states because they each generate a plurality of weak gas discharges with approximately the same intensity. And because each display unit has a different gas discharge time, and the gas can only generate a plurality of weak discharges, the brightness of the multiple weak discharges is much less than the brightness of the instant strong discharge described in the conventional technology, so the plasma display The background brightness generated by the panel screen during the reset period will be darker than the background brightness generated by the conventional technology, so the brightness contrast of the plasma display panel screen of the present invention can be increased accordingly. Applying excitation pulses with different polarity to the sustain electrode X and the scan electrode Y

541512 V. Description of the invention (11)-At the same time as the wave, the driving circuit will reduce the data voltage of the data electrode A to a low level, that is, the zero level. This potential lies exactly in the middle of the positive and negative polarities. In this way, vertical discharge can be avoided, and at the same time, no charge is attached to the dielectric layer of the data electrode A. After the end of the excitation period T12, the sustain electrodes χ and the scan electrodes γ both return to zero potential. When &, the equivalent voltage of each display unit due to the internal accumulation is greater than the discharge start voltage, so all display units will self-discharge and discharge once in a lifetime. The time inside each display is reduced to a certain degree. At the same time, when the first clearing period T13 is set, the driving circuit will generate II second clear pulse wave Pγ3 for each display unit, which is used to discharge all the display units and the weak mess, and clear each display unit. An internal error message, avoid, at, a ^ ^ flute-,, main X first made an error when the address period T2 was advanced. Among them, increase: ": = :? Positive polarity, and the voltage values of which are slow with time as early as each other. After the second rising pulse wave ρΥ3 which slowly rises, :: The difference in Ho state will be further reduced to reach Highly homogenized eyes ^ φ, ”, in order to avoid vertical discharge, the driving circuit can also apply a second caution button to the data electrode A, ^ Λ) J XT, with too much electricity V 3 attached to the shell, To avoid the surface display of the data electrode A, its reset :: t In the division mode, the driver program is as shown in Figure 4β, two Λ //, one erasing and two erasing each time. _-There are exciting pulses again. In the first-clearing period T1 1, in the second: the main / not early scanning electrode γ generates the first clearing pulse wave PY1. -/ Month ’at T1 and k2, the driving circuit will scan each display unit.

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Page 14 541512 V. Description of the invention (12) The pole Y applies a second clear pulse wave Pγ2. Among them, the first clearing pulse wave p 盥 = clearing the polarity phase of the pulse wave Py2 and its voltage value increases with time: gradually. In this embodiment, the first clear pulse wave Pγι is positive, and the monthly pulse pulse PYS is negative, as shown in FIG. 4β. Among them, the life of the pulse wave PY1 and the first: the function of clearing the pulse wave Pγ2 and the display of the display unit ^: When the first clear pulse wave PY1 is generated by the display unit '; this will not be described again. It should be noted that when the display unit is in the clear mode, no excitation pulse will be generated during the set period. As the clear peak does not produce a display on a display unit that is not lit against a sub-screen, The background light in a display screen can be reduced and the brightness of the display screen can be improved. — In summary, the feature of this embodiment is that the display unit is in the excitation mode during the reset period of the sub-pictures. The clear mode is to reset and display a certain number of sub-pictures. ^ ^ 70 is in the sending mode. It is sufficient to generate enough wall charges by exciting the pulse wave. The excitation is not limited when the display unit is in the excitation mode or the clear mode, and the number of pictures is 0 and the display unit is in the excitation mode 3 twice, > month division mode). number. In the present invention: ^ or the embodiment, when the display unit displays each one displayed in the clear mode <-other sub-screens', it is to further reduce the plasma display panel to further improve: . The idea is that when the electric display is displayed: the panel is at w ... all the display units do not switch to the excitation mode at the same time ::

541512 V. Description of the invention (13) Divide the display unit into several display unit groups, and switch to the excitation mode every _. In this way, Lei Jiang; each group that is not too early, respectively, should be light, and the remaining 目 Γ head: the group is in the excitation mode and releases more than eight visible early, and the erasing mode is used as the display panel, The background light displayed on the entire plasma can be further taken into account. Refer to FIG. 5A, which shows a simple schematic diagram of the second glass substrate of the present invention. The sustain electrodes χ and scan electrodes = 2 are arranged on the front glass substrate 500, and each column of the display unit has a flat-screen electrode, respectively. According to the front glass substrate and: the sustain electrodes XI, χ2, χ3, ... and the scan electrodes Heart ^ 、 13 标 #: It is ^, and it is divided into a first display unit I-2 display unit group 502 according to whether the label is odd or even. The display units with odd numbers of the sustain electrode χ7 scan early scan T belong to the first display unit group 501, the display electrodes of the quasi-hold electrode X and the scan electrode γ are even numbers, and the display unit group 502. Zaofan Belonging to the second brother, please refer to FIG. 5B, which shows a schematic diagram of the unit group switching different modes to display the daytime surface in the second embodiment of the present invention. Each fixed unit sequentially displays each screen f0, fl, f2 ... The second one shows tN search, and the mother face can be divided into a plurality of sub-pictures, for example, the day surface fi further includes a first awning surface sfll, a second sub-picture sf22, etc. . By controlling the driving status of each display unit when displaying each sub-day surface, the display unit is displayed with appropriate brightness. In this embodiment, all display units on the panel are =

I. V. Description of the Invention (14) The first display unit group 501 and one / early metagroup 502 for each screen are displayed. The two alternate to excitation mode. When others are at rest, switch during the reset period. When the unit is in the excitation mode, the second == the second is in the clear mode. The display tuples will be reset during the reset period to clear the "or == line ', then the status of each display order is as shown in Figure 5B. The person 1 will display the ^ pattern in order to display the daytime" 0, all displays The unit groups are:; =: panel; shows the first daytime surface to the excitation mode, j +, 'When the first sub-screen sfOl is switched, there are enough wall mushrooms that are full of octopus 丨 V 辟-土 个 日 面 fl At first, the first display will sing ς ιη chanting the face. When the second display—the first + 蚩 $ φ “, all display units of the Wei and Wei 1 display the discontinuous day surface sfll and enter the excitation mode 502 will continue. In clear mode. She / Yi Wu Wu Group-β 〇 When the third screen f 2 is presented to Hada, all the display units of the second early Wu Group 502 display the first sub-screen "21: Enter the excitation mode, The first display unit group 501 is switched to clear the die ...: Repeatedly repeat by the second analogy. For example, when & Visible light is emitted. Therefore, the brightness of the background light generated by the plasma display panel will be less than that of the conventional method and the method of the first embodiment. The brightness comparison of the display screen can be further added to improve the display quality of the display panel. Please refer to FIG. 6A, which shows a simple schematic diagram of the front glass substrate in the third embodiment of the present invention. This embodiment is divided into the first display according to the numbers of the sustain electrodes χ and the scan electrodes Υ in order. The display unit group 601, the first-display unit group 60 2, the third display unit group 603, and the fourth display unit group 604. Please refer to FIG. 6B, which illustrates a third embodiment of the present invention. Each display unit group Change the mode to display the screen. Page 17 TW0702F.ptd 541512 Fifth, the description of the invention (15) tolerance map. In this embodiment, the first display unit group 60m,: group 6.2, the third display unit Group 6. The fourth one is not only the parent-group 6. 4 series which switches to the excitation mode in the first display of each screen. The display of ... =: =: reset period np division mode when the display unit is in the excitation mode.佥 6 Γ Γ 4 sections in clear mode or excitation mode to imitate the situation of ^ Γ denier, as shown in Figure 6B. Report 'Fly to display the screen in sequence f0 m-! &Quot; Plasma display The panel displays -g ±, n .., and the group with no early age all displays the first sub-gold and fn 7: cut; to the excitation mode, enough wall charges are generated to display:: face: ⑴: brother -Display unit group 601, second display unit_2 :: The early stage group 603 and the fourth display unit group 604 are connected to the first sub frame, the second sub frame of the page is switched to the excitation mode: When the early group is switched to the excitation mode, the other three singles / ^ one is shown as =. Its working principle and operation situation are in the same state as in the second embodiment. In this way, when the plasma display panel displays three in the day and the day, not a quarter of the display units are in the excitation mode at the same time, and only the brightness of the background light generated by the plasma display panel will be more visible than I. Therefore, the method of the embodiment and the second embodiment are both small. The brightness comparison of the first display screen can be eliminated, and the display quality of the display panel can be increased. Step by step, the present invention applies two to the reset stage: The waveform of the clearing and excitation waves of the scanning electrode Y, and the waveforms shown in the figure of the quasi-electrode X and 4A and 4B, as long as the voltage value will be v '/ not J1 at any time. Figures 7 to 10 show timing diagrams of various drive signals in the second and w slow rise or down modes. In Figure 7, '*, Yuan is excited * A, during reset period

TW0702F.ptd Page 18 541512 5. In the description of the invention (16), the clear pulse wave and excitation wave generated by the ‘sustain electrode X and scan electrode Y are saw-tooth waves. In Fig. 8, during the reset period, the voltage values of the clear pulses and the excitation pulses generated by the 'sustain electrode X and the scan electrode Y decrease with time compared with the previous two embodiments. Except for the above two driving methods, except for clearing the waveforms of the pulse wave and the excitation pulse wave, the driving timing and principle of the driving circuit are the same as those of the riding signal shown in FIG. Please refer to FIG. 4A and FIG. 9 at the same time, the waveform of the first excitation pulse Pm generated by the sustain electrode X during the excitation period T12. In Fig. 9, after the first excitation pulse L has a DC bias voltage (D C b i a s), the voltage value gradually rises with time. The advantage of this embodiment is that since a DC bias voltage is applied first, the time required for the voltage value of the first excitation pulse Pm to gradually rise to the maximum value is shorter, which can save the excitation period T1 2 to occupy the entire reset period. length of time. Please refer to FIG. 10, the waveforms of the first pulse ^ pulse generated by the scan electrode γ and the second pulse pulsation 4 generated by the sustain electrode χ are both ^ after having two DC bias voltages. Then gradually increase or decrease with time. In this way, the voltage difference between the sustain electrode χ and the scan electrode Υ can be maximized in a shorter time. It can further save the time length of the sending period T12 occupying the entire reset period. [Effects of the Invention] A driving method of the plasma display panel in the reset method disclosed in the above embodiments of the present invention, the voltage value of the excitation pulse generated by the display unit is slowly increased or decreased based on the tunneler time. This will make each display unit

TW0702F.ptd Page 19 541512 V. Description of the invention (17) Accumulated background light of wall charges In addition, it is always reset to show that every day surface is so *. The essence of the invention The brightness of the product state at the time of production is further accounted for, although the scope of the god and the fan protection is closer, improving the middle school, and the stimulus is only partially reduced. Rear. Simultaneous display shows a single pulse. The display of the plasma display shows that the daylight has been used to reduce the brightness of the electrical surface. It does not need to be in addition. When the display unit displays the brightness of the panel, it is better to be familiar with this technology. Please compare the display produced by patent model 3 display panel. Each sub-picture displays the exciting pulse wave on the display panel. Shows the contrast produced at daytime. The example reveals that the artist ’s incessant movement and zinc will not be separated, so what is defined as

™ 〇702F.ptd

筮 9Π " ST 541512 Simple explanation of the diagram [Simplified explanation of the diagram] Fig. 1 shows an oblique perspective view of the structure of the plasma display panel. Fig. 2 is a sectional view showing the structure of a plasma display panel. 3A to 3B are timing diagrams of driving signals that are conventionally used to drive a display unit, respectively. FIG. 4A is a timing diagram of the driving signals when the display unit is in the excitation mode in the first embodiment of the present invention. FIG. 4B shows a timing diagram of the driving signals when the display unit is in the clear mode in the first embodiment of the present invention. Fig. 5A shows a simple schematic diagram of a front glass substrate in a second embodiment of the present invention. FIG. 5B is a schematic diagram showing that each display unit group switches between different modes to display the daytime surface in the second embodiment of the present invention. Fig. 6A shows a simple schematic diagram of a front glass substrate in a third embodiment of the present invention. Fig. 6B is a schematic diagram showing that each display unit group switches between different modes to display the day and night surface in the third embodiment of the present invention. FIG. 7 to FIG. 10 respectively show timing diagrams of various driving signals when the display unit is in the excitation mode. [Illustration of figure numbers] 102, 500, 600: Front glass substrate 104: Dielectric layer 106: Protective layer

TW0702F.ptd Page 21 541512 Brief description of the drawings 1 0 8: Rear glass substrate 1 10: Fluorescent layer 1 1 2: Partition wall 1 1 4: Discharge space 1 1 6: Dielectric layer 501, 601: First display Unit groups 502, 602: second display unit group 603: third display unit group 604: fourth display unit group

Page 22 TW0702F.ptd

Claims (1)

541512 6. Application scope h A plasma display panel (Plasma Display Panel, PDpj driving method during reset period), _ electric display factory, the board has multiple display units for displaying multiple screens ( (Bu ㈣ not face), wherein each of the display units has a first belt with a first electrode parallel to each other, and a third electrode opposite to the first electrode and the second electrode, and each display screen Each has a plurality of sub-day vertical (subframe), the driving method of the reset period is at least; Step: The following steps perform a priming mode, the stimulus includes the following steps: at least every display unit The first electrode generates a first pulse, which is used to clear the pulse wave load in the display unit every month, wherein the voltage value of the first clear pulse wave is added along with a wall; Gradually, the first electrode of each display unit generates a priming pulse, and the second electrode generates a second excitation pulse to re-excite and form the walls in each display unit. Wave, the polarity of the first excitation pulse and the second excitation pulse are opposite, wherein the voltage value of the excitation pulse and the second excitation pulse follows, and the first plus; and gradually Increasing the first electrode of the display unit to generate a wave for clearing the wall charges in the display unit. The second clearing pulse and the clearing pulse voltage value gradually increase with time. The first execution of erase mode (erase mode), the TW0702F.ptd Page 23 " π 1 display mode includes at least 541512 6. The scope of the patent application includes the following steps: Single display + bucket # ^ wave for each display: This-electrode generation-third cleaning Pulse three clears the voltage of the pulse wave; the wall charges within the 'wherein' the dibuminium f value gradually increases depending on the heart time; and: the first electrode of the 5th display unit generates a fourth clear pulse wave, It is used for clearing seven or seven L for each significant stem. Pulse: The pulse clearing system is opposite to the polarity of the third clearing pulse, and the voltage value of the fourth 1 removing pulse ^ gradually increases with time; ^ — Wherein, each display unit is driven by the one of the excitation mode or the clear mode to drive each display unit to display each of the display screens and each sub-paper in writing. 0 — _ 2 · As described in the application of the first scope of patent application The method, wherein when the first electrode generates the first clear pulse wave, each of the display units: generates a first data pulse wave. Leyi Electrode, 3 · The driving method according to item 2 of the scope of patent application, wherein the material pulse wave is a square wave with positive polarity.贲 'each display, each display unit 4 · For example, please apply the driving method of item 1 of the patent scope, the second electrode generates a second data when the first electrode of the early yuan generates the second clear pulse wave Pulse wave. Among them, the first one is the driving method of item 4 in the scope of patent application. The pulse wave is a square wave with positive polarity. 6 · If the driving method according to item 丨 of the scope of patent application, the good wave system is saw-teeth wave. Among them, the 7th, such as the driving method of the 1st patent application scope, TW〇7〇2F.ptd Page 24 541512 6. Scope of patent application The pulse wave system is sawtooth wave. 8. The driving method according to item 1 of the patent application range, wherein the second excitation pulse wave is a sawtooth wave. 9. The driving method according to item 1 of the patent application range, wherein the second clearing pulse wave is a sawtooth wave. 1 0. The driving method according to item 1 of the patent application range, wherein the third clearing pulse wave is a sawtooth wave. 1 1. The driving method according to item 1 of the patent application range, wherein the fourth clearing pulse wave system is a sawtooth wave. 1 2 · The driving method of item 1 in the scope of patent application, wherein the first excitation pulse wave first has a DC bias voltage, and then the voltage value gradually increases with time. 13. The driving of item 1 in the scope of patent application The method, wherein the second excitation pulse system first has a DC bias voltage, and then the voltage value gradually increases with time. 1 4. The driving method according to item 1 of the scope of patent application, wherein when the plasma display panel displays the first sub-day surface of the first display screen, each display unit executes the excitation mode. 1 5. The driving method according to item 1 of the scope of patent application, wherein when the display units display the first sub-day surface of each display screen, the display units execute the excitation mode. 1 6. The driving method according to item 1 of the scope of patent application, wherein when the plasma display panel displays each display screen, only some of the display units execute the excitation mode. TW0702F.ptd Page 25, 541512 6. Application for Patent Scope 17. For the driving method of Item 16 of the Patent Scope, where the display units are divided into a plurality of first display units and a plurality of second display units, and these The first display unit and the second display units are alternately arranged on the plasma display panel. When the plasma display panel displays each day, the first display units and the second display units are This excitation mode is performed alternately. 18. The driving method according to item 16 of the scope of patent application, wherein the display units are divided into a plurality of first display units, a plurality of second display units, a plurality of third display units, and a plurality of fourth display units. And the first display unit, the second display unit, the third display unit, and the fourth display unit are staggered on the plasma display panel, and when the plasma display panel displays each During the screen, the first display units, the second display units, the third display units, and the fourth display units execute the excitation mode alternately. TW0702F.ptd Page 26