TW565819B - Driving method for plasma display panel - Google Patents

Abstract

There is provided a driving method for driving a plasma display panel, which includes the steps of: first, sequentially outputting a first clear pulse a first priming pulse, a second clear pulse and a pixel signal corresponding to the display unit; next, sequentially outputting a sustain pulse, a third clear pulse and a fourth clear pulse by the driving circuit of a first display unit, wherein the first display unit is one part of the display unit; and finally outputting a sustain pulse by the driving circuit of a second display unit, wherein the second display unit is another part of the display unit.

Description

565819 V. Description of the Invention (1) [Field of the Invention] The present invention relates to a driving method for driving a display, and more particularly to a driving method for driving a plasma display panel. [Background of the Invention] People have higher and higher requirements for acousto-optic services. Taking the display as an example, the conventional cathode ray tube (CRT) display has problems such as large volume, severe radiation, distortion and distortion at the edges of large screens, and so on. After the digital TV broadcast in the future, the cathode-ray tube screens known to be developed by analogy will be gradually eliminated. Instead, it will be a Plasma Display Panel (PDP) with a large size, wide viewing angle, high resolution, and full-color display capabilities. Please refer to FIG. 1, which shows a perspective view of a conventional plasma display panel structure. The plasma display panel is composed of a front substrate 102 and a rear substrate. A plurality of sustaining electrodes X and a plurality of scanning electrodes Y are arranged in pairs in parallel on the other glass substrate 102. The sustain electrodes X and the scan electrodes γ are covered by a dielectric layer 104. The dielectric layer 104 is covered with a protective layer 106 composed of an oxide ball to protect the sustaining electrode X, the scanning electrode Y, and the dielectric layer 104. In addition, a plurality of address electrodes a (addressing electrodes) are disposed in parallel on the rear substrate 108 and are 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 Y are orthogonal to each other. The ribs 12 are arranged on the rear substrate 108 along a direction parallel to the address electrode A, and the fluorescent layer 11 is located between two adjacent ribs 丨 2.

TW0864F (AUO) .ptd 565819

V. Description of the invention (2) The cavity between the front substrate 102 and the rear substrate 108 is a discharge space, which is filled with a mixture of neon and xenon. 9. Discharge gas. A prepared electrode X on the front substrate 102 and a scan electrode Y correspond to the corresponding row of address electrodes on the rear substrate 108 to define a display unit. In this way, a plurality of sustain electrodes χ, a scan electrode Y, and an address electrode A will define a plurality of field power display units arranged in a matrix of 1 M on a plasma display panel. The driving circuit composed of the sustain electrode X and the scan electrode γ address electrode A applies high voltage and high voltage to the discharge space, and the alternating current causes the gas in the discharge space to be excited to excite ~ discharge ion and discharge. UV light. After the fluorescent layer 110 absorbs ultraviolet light of a specific wavelength, it emits visible light. '& Please refer to Figures 2A ~ 2B, which are timing diagrams of driving signals used to drive the display unit. The display unit displays a frame in each frame period. Each picture period is composed of a plurality of subframe periods. The driving circuit applies a driving signal to the display unit in each sub-screen period to drive the display unit to emit light or not to emit light. Each sub-day-to-day period can be sequentially divided into three periods: reset period Tl, address period T2, and sustain period T3. During the reset period τι, the scan electrode Y first outputs an erase pulse PY1 to clear the wall charges accumulated near the sustain electrode X and the scan electrode γ in the previous sub-screen period. Then, a priming pulse is applied to cause the gas in the discharge space to be excited and released again to form the excitation ions required for the display unit to emit light, and also to make the electricity

TW0864F (Youda) .ptd Page 5 565819 V. Description of the invention (3) The state of the excited ions in each display unit on the plasma display panel tends to be consistent. Wherein, the form of applying the excitation pulse wave can be the high-voltage excitation pulse wave PX2 outputted from the sustain electrode X, as shown in FIG. 2A, or the sustain electrode χ and the scan electrode 输出 can output excitation pulse waves Px2 and ργ2 with different polarities, As shown in Figure 2B. In addition, the excitation pulse wave is not limited to a square wave, and may be a sawtooth wave having the same waveform as the clear pulse wave PY1. Finally, the scan electrode γ outputs a clear pulse wave PYS to clear the remaining excited ions in the display unit. During the address period T2, the address electrode A outputs a pixel number corresponding to the display unit, so that the display unit emits light. In the sustaining period 73, because of the memory effect of the excited ions, the sustaining electrode χ and the scanning electrode Υ only need to output sustain pulses and output visible light. Please refer to FIG. 3A, 'Continually send and output pulses, and the other: Π: χ and the two-stroke electrode γ-shown. The electrodes do not output signals, as shown in Figure 3A, the brightness of each display unit in each picture unit is The brighter it will be. The longer it takes to illuminate the display, the larger the load will be. When the electronic display * display surface extension-and ，, it can be regarded as its load to all the display orders and element boards on the display panel. When displaying a high-brightness image, in this manual, it is said that the total load of such highlights 2 will be large. The description shows that during the maintenance period, the image is maintained and reloaded. The pulse is maintained from the above. Will cause the lightning electrode X and the scanning electrode 交互 to interact with the power loss of the display panel. When TW0864F (AUO) .ptd $ 6, page 565819 V. Description of the invention (4) Plasma display panel output double cropping and it will also cause serious Electromagnetic interference, ' Have a greater power loss. Interference, EMI) asked. The method of disturbing the power loss of the electro-magnetic board is, the question. The conventional method to reduce the plasma display surface trace electrode Y does not require a certain period of time between the sustain electrode χ and the scan sustain period during each sustain period. , Both output sustain pulses alternately. In order to reduce power loss. In this case, check that both electrodes do not output any signal, (dummy time). When the electric tortoise-Erzhong 'calls this period of time will be the interval The longer the sustain electrode X is, the larger the load is. The larger the load is, the more the number of waves will be in the set period. In order to reduce the sustain pulse, the longer the idle period, the power loss of the display unit. When the image is carried, electricity will be generated. If the electromagnetic interference is changed, please refer to Figure 3B. When the plasma display shows EMI, the sustain pulse output from the sustain electrode X will be generated. When the image is carried, the magnitude of the pulse wave cannot be immediately raised from a low potential to the skin (: tch2 thunder makes it possible to maintain the theoretically non-signaling sweep of the cat to lose two waves). 3B image of large wave output from sustain electrode X and scan electrode γ 'The part taken with the solid coil is shown. At == points: as the third, the sustain pulse is output interactively with the scan electrode system. Hold: Dagger: hold power = When the image is carried, the sustain electrode X and the scan electrode γ system alternately. : At the same time, in theory, another signal that does not output a signal theoretically outputs a surge. The larger the load on the plasma display panel, the greater the value =. In this manual, the above phenomenon is called a surge. W0864F (友 达) .ptd 565819 V. Explanation of the invention (5) Application. The effect of the surge effect on the plasma display panel is that the voltage operating range of the driving signal will become smaller. And the larger the load of the plasma display panel, the voltage operation [The purpose and summary of the invention] In view of this, the object of the present invention is to provide a driving method for driving a plasma display panel, so as to improve the surge effect of maintaining a pulse wave and expand the voltage of the driving signal. Operating range. And improve the electromagnetic interference problem of the plasma display panel, reduce the length of the idle period, and increase the brightness of the display screen. Drive the display unit to emit light and remove the pulse wave. The first display The circuit maintains the first pulse. For the sake of understanding, the following is based on the method of the present invention. Each has. The drive. Then, the display unit displays the third and fourth clearing waves. The driving unit, the driving unit of the output and output, clears the pulse wave, the display surface circuit, and the law system includes the first pulse wave and one of the display wave circuit. Finally, the second display proposes a board including the following excitation pulses. Unit phase out dimension>. Then, 'the second display unit type uses complex data for this step wave. Corresponding to the pulse, the first display is driven by the driving plasma display unit drive method: first' input again, The output pixel signal display panel, each display shows a first clear and a second clear. then,

wave. Among them, the first display, the first display unit, and the drive circuit output of the unit of the display unit drive the drive circuit of the other unit of the display unit.

A better implementation of the above-mentioned objective of the above 2JL, features, and advantages can be more obvious.

V. Description of the invention (6) [Preferred embodiment The feature of the present invention is that when the maintenance circuit does not rotate and maintain the pulse wave at the same time, the negative effect caused by the driving of the heavy load image of the display unit is reduced to reduce the plasma. The display panel output circuit can improve the voltage operation range of the drive signal of the display unit when outputting a heavy-load image. & Surge effect of the epiphysis' to increase the problem of driving disturbance and increase the brightness of the display day. The electromagnetic interference of the circuit is shown in FIG. 4 according to the present invention: The timing chart of the display unit driving display is used to display the display signal. Each H driving circuit on the plasma display panel is used to apply a driving signal to the display unit during each sub-picture period (rame period) to drive the display panel to emit light or not. Please refer to FIG. 4. In this embodiment, each sub-surface period can be sequentially divided into a reset period (reset period) Tl, a first address period (& (1 dozen 633061 ^ 〇 ( 1) Ding 2. Six stages of first sustain period T3, erase period T4, second addressing period T5, and second sustaining period T6. Driving signals output by the driving circuit during the reset period T1 It is the same as the conventional driving method disclosed above, and is not repeated here. In Figure 4, the excitation pulse wave is a sawtooth wave with different polarities output by the sustain electrode X and the scan electrode γ, respectively. The invention is not limited to this. The excitation pulse wave can also be a square wave, as shown in Figures 2A and 2B. And the form of applying the excitation pulse wave can be that the sustaining electrode X outputs a high-voltage excitation pulse wave, such as 2A As shown in the figure, the present invention is different from the conventional method in that in the present invention, the display units of the electro-condensing display panel are divided into a plurality of arrays.

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565819 V. Description of the invention (7) The moving circuit outputs sustain pulses at different periods. In this embodiment, the display units of the electro-polymer display panel are divided into two groups: a first display unit and a second display unit, and the first display unit and the second display unit are alternately disposed on the plasma display panel. However, the number of groups of display units and the arrangement on the plasma display panel are not limited to this.

After that, during the first addressing period T2, the address electrode A provided on the first display unit outputs a corresponding pixel signal, so that the first display unit emits light. The first display unit is only a part of all the display units on the plasma display panel. The length of the first addressing period 12 in this embodiment is shorter than the addressing period in the conventional driving method. After that, at the first sustaining period T3, the first display unit and the sustaining electrode X and the scan electrode Y alternately output a sustaining pulse, so that the first display unit emits light continually. The duration of the first sustain period in this embodiment is shorter than the duration of the sustain period in the conventional driving method. After that, during the clearing period T4, the miscellaneous electrode X and the scan electrode set on the first display unit will output a clear pulse and an excitation pulse. : The same as the clear pulse and excitation pulse i of the :: f f f :: segment T1 output, which is self-explanatory ..., as described above, and will not be repeated here. Wash weight

The difference between T1 is that at the time of clearing period 74, only the first display sheet is activated; the circuit outputs clear pulse and maintains pulse. After that, during the second addressing period T5, the electrode A set at the second address output a corresponding pixel signal, so that the second / discharge light is emitted. The second display unit is only a part of the plasma display unit. In the second addressing in this embodiment ==

565819 V. Description of the invention (8) The time period T 6 of the time period is set to output interactively the maintenance period in the embodiment. The time period T 6 of the display unit is output. When based on reloading images good. In this way, the method for maintaining the display panel with different display panels with display panels has a short period of time, which is shorter than the second sustaining pulse. The second sustaining time is long. The driving circuit maintains the pulse. The electromagnetic stem output in the product period has two maintenance lengths, and the display unit is provided so that the time of the second period T6 is shorter. Departments are respectively in section. Therefore, it can effectively propose the quality of the driving pulse pulse surge signal. The problem of disturbance of the sustaining pulse wave is different. The period T3 and the high display screen are addressed in the conventional driving method. Finally, during the second sustain, the sustain electrode X and the scan electrode Y continuously emit light in the display unit. This length is the negative driving method of the first display unit and the second-maintenance period T 3 and the second sustaining reduction of the plasma display panel in the conventional driving method. The driving effect of the plasma display panel can obtain a considerable voltage operation range. And the driving circuit of the electric display unit is improved in another advantage that the electric power can be improved. In addition, the drive T 6 proposed by the present invention. In this way, the idle brightness can be reduced. FIG. 5 is a timing diagram of driving signals of a second driving display unit according to a preferred embodiment of the present invention. As a result, the driving force that is not shown in Figure 4 is different. The difference is that during the clearing period T4, the sustaining electrode χ does not output the excitation pulse. And the polarities of the two pulse waves output from the scan electrode γ are opposite. In this way, the gate length of the clearing period T4 can be reduced, and the instantaneous current and power loss of the driving circuit can be reduced. This reduces the number of transistors necessary for the driving circuit. FIG. 6 is a preferred embodiment according to the present invention The third type shown

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565819 V. Description of the invention (9) Timing chart of driving signals for driving the display unit. Figures 4 and 5 show that the driving circuits of a display unit and a second display unit output daylight signals during the first fixed period T2 and the second addressed period T5, respectively. Fig. 6 shows all the display units, regardless of the first display unit or the second display unit. The basin drive circuit inputs the daylight signal into the corresponding display unit at the same addressing period T2. After that, the driving of the first display unit and the second display unit == then the output is maintained at the [maintenance period T3 and the second sustain period n respectively]; and the driving circuit of the first display unit is maintained at the first sustain period T3 and the second sustain The clearing period T4 between the periods T5 outputs the clearing pulse, as shown in FIG. 5, or the clearing pulse and the excitation pulse, as shown in FIG. 4. In this way, the form and sequence of the driving signals proposed by the present invention can be simplified. [Effects of the Invention] The driving method for driving the plasma board disclosed in the above embodiments of the present invention can improve the surge effect of maintaining the pulse wave and expand the voltage operating range of the driving signal. In addition, it can also improve the two interference problems of the plasma display panel, and reduce the length of time during the idle period, and increase the brightness of the daytime display. In summary, the present invention has been disclosed as above with a preferred embodiment, but it is not intended to limit the date and time of the issue. 'Any person skilled in the art can make various changes and retouches in the essence of the present invention.' Because of: The attached application materials of the present invention's security system.

quasi. W 565819 Brief description of the drawings [Simplified description of the drawings The first figure shows the conventional electric power. Figures 2 A ~ 2 B show the perspective views of the structure of the head, panel, and display panel. Timing diagram. Figure 3A of the driving signal used to drive the display unit is a waveform diagram of an imperfect skin ^ pulse wave. ^ Dimensions of the output of the sustain electrode and the scan electrode in the case. Figure 3B shows the sudden occurrence of a burst when the waveform of the displayed and corresponding sustain pulses is displayed in the early stage. Figure 4 is based on this issue. [Effects] The first kind of timing diagram shown in the & Fig. 5 is a timing chart of the driving signals of the second field driving display unit according to the preferred embodiment of the invention. Fig. 6 is a timing diagram of a third driving signal for driving a display unit according to a preferred embodiment of the present invention. [Illustration of figure number] 102 104 106 108 110 112 Front substrate Dielectric layer Protective layer Rear substrate Fluorescent layer Partition wall

Claims (1)

565819 Six 'patent application scope 1. A driving method for driving a Plasma Display Panel (PDP), wherein the plasma display panel includes a plurality of display units (discharge units), each of which has one The driving circuit is used to drive the display unit to emit light according to the driving method. The driving circuit includes a sustain electrode, a scan electrode, and a data electrode. The driving method includes the following steps: outputting a first clear pulse wave output, a first exciting pulse wave output, a second clear pulse wave output, and one pixel, wherein the booklet A is a heavy I signal and corresponds to the display unit. ; The driving circuits of the plurality of first display units have pulse waves in each wheel, wherein the first display units are part of the first display unit; ~ The drive circuits of one of the first display units of 7G Pulse waves; Copeland issues a third clearing of the driving circuit pulses of the first display units; and each cycle issues a fourth clearing of the plurality of second displays Of the driving unit of the electric pulse support, wherein the plurality of second display unit 4 are to be sent out of a plurality of dimensions of each part of the wheel. … The other 2 of the display units are as described in item 1 of the scope of patent application, the first clearing pulse wave, the second clearing pulse wave, and the third method, wherein the first removing pulse wave and the First TW0864F (Youda) .Ptd p.14 5658l9 6'Applicable patent scope 4 The clearing pulse wave system is rotated by the scanning electrode system 3. As the driving method described in item 1 of the patent application scope, the excitation pulse system is divided by The sustaining electrode and the scanning electrode are recognized, and the driver is 1 as described in item 3 of the scope of patent application. The first excitation pulse output by the holding electrode is opposite to the polarity of the several pulse waves. j 出 之 第 > where > the > where the n ^ SSL action > where J the pole wheel out, 〇 > where 9 the round out the 9th where J the 5. The driving method described in item 1 of the patent scope has the opposite polarity of the third clear pulse and the fourth clear pulse. 6. As described in item 丨 of the scope of patent application, after the driver clears the third clearing pulse, the circuit will output a second excitation pulse. 7. As the scope of patent application In the driving method described in item 6, the first excitation pulse wave is composed of the sustain electrode and the sweep y, respectively, as described in item 7 of the scope of patent application. The polarity of the second excitation pulse output from the sustain electrode is opposite to that of the one excitation pulse in the scan electrode. The rotation of the L is the driving method described in item 6 of the scope of the patent application. The polarity of the second pulse wave and the fourth pulse wave are the same. The Jin Xin r ::: driving method described in item 1 of the patent scope, wherein the beta dentin bleaching system is rotated by the address electrode. The driving method described in item 1 of the U.S. patent range, wherein, the element letter! "The method further includes the following steps: = ι soil, each of the driving circuits not earlier than 70 output the pixel signal, '^ The pixel signal corresponds to the first display unit; and TW0864F (AUO) .ptd page 15 565819 6. Application scope of the patent Each pixel circuit of the second display unit outputs the pixel signal, The pixel signal corresponds to the second display unit. The driving method as described in item 1 of the scope of patent application, wherein the two sustaining pulse waves are alternately inputted by the sustaining electrode and the scanning electrode respectively. _A driving method for driving a plasma display panel (PlaSma Display Γ: excavating a PDP) 'wherein' the plasma display panel includes a plurality of display units, and each display unit has a driving circuit for The display unit is driven to emit light according to the driving method. The driving circuit includes a sustain electrode, a scan electrode, and a data electrode. The law system includes the following steps: output a first clear pulse wave output a first excited pulse wave output a first clear pulse wave * *: the first: the display unit of the ... The units are the first pulses of the display units; the first pulses; the second pulses; each round output a plurality of maintaining each round output a third clear each round output a fourth clear a display unit Driving circuits-display units, driving circuits-display units, driving circuits TW0864F (Youda) .ptd Page 16 565819 Six. Each of the driving circuits of a plurality of second display units in the scope of patent application corresponds to a pixel signal corresponding to each of them, wherein the second display units are the display units Another part; and the driving circuits of the second display units each output a plurality of sustaining pulses. 14. The driving method according to item 13 of the scope of patent application, wherein after the third clear pulse is output, each of the driving circuits of the first display units outputs a second excitation pulse. TW0864F (AUO) .ptd Page 17