CN102760400B - Method for preventing sustaining pulse from overflowing - Google Patents
Method for preventing sustaining pulse from overflowing Download PDFInfo
- Publication number
- CN102760400B CN102760400B CN201210227943.9A CN201210227943A CN102760400B CN 102760400 B CN102760400 B CN 102760400B CN 201210227943 A CN201210227943 A CN 201210227943A CN 102760400 B CN102760400 B CN 102760400B
- Authority
- CN
- China
- Prior art keywords
- frame
- pulse
- maintenance
- subfield
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention belongs to the field of flat panel displays, and discloses a method for preventing sustaining pulse from overflowing. The method specially comprises the following steps of: dividing a frame into N sub-fields, wherein each sub-field has a resetting period for initializing a whole image, an addressing period for selecting a scanning line and selecting a discharging unit based on the selected scanning line, and a sustaining period for showing gray levels based on a discharging volume, the resetting period is equal to the addressing period, the sustaining period and the number of distributed sustaining pulses are increased according to a ratio, and the sub-field with the most sustaining pulses in the frame is placed in the end; and then carrying out the resetting period, the addressing period and the sustaining period in sequence after detecting the coming of an upper jumping edge of a field synchronization signal; and finishing the driving to the frame after detecting the coming of a lower jumping edge of the field synchronization signal, and preparing a new frame. According to the method, the sub-field (namely the maximum weight sub-field) with the most sustaining pulses in one frame is placed in the end, the driving to the frame is finished after detecting the lower jumping edge of the field synchronization signal, and then the new frame is prepared.
Description
Technical field
The invention belongs to field of flat panel displays, particularly relate to a kind of method preventing from maintaining pulse spilling.
Background technology
The advantage of plasma display is that thickness is thin and lightweight, and can manufactured go out the large and product that resolution is high of size, plasma display is the little low-pressure gas room arranging thousands of sealings on a display screen, being excited by electric current makes it send invisible ultraviolet light, then the red, green, blue 3 look fluorophor after ultraviolet light percussion on glass sends gr visible ray, with this imaging.Filling mixed gas between two thin glass plates, applies voltage and makes it to produce ionized gas, then make plasma gas discharge, react with the fluorophor in substrate, produce chromatic image.It is using plasmatron as light-emitting component, a large amount of plasmatrons formation screen arranged together, the each little indoor that each plasma is corresponding are filled with neon xenon-133 gas, add high pressure between plasmatron electrode after, the gas be enclosed in the plasmatron cell between layer glass can produce ultraviolet light, and excites the red-green-blue fluorescent powder on panel display screen to send visible ray.Each plasmatron is as a pixel, and change combination by the light and shade of these pixels and color and make it the image producing various gray scale and color, similar kinescope is luminous.
Plasma display have scan electrode (Yl, Y2 ... Yn), maintenance electrode (x), with the addressing electrode of scan electrode and maintenance electrode omnidirectional distribution (Al, A2 ... Am).Just define centered by the point of crossing of scan electrode, maintenance electrode, addressing electrode and can represent red or green or blue display unit.Scan electrode and maintenance electrode make on the front substrate, and have made again dielectric layer and mgo protection layer on the top of scan electrode and maintenance electrode.Addressing electrode makes on the back substrate, in order to prevent the optics between horizontal adjacent display cell and electrically on interfere with each other, between addressing electrode, also made the barrier of certain altitude.Infrabasal plate is separated into strip groove by barrier, and the height of barrier also just determines the discharge space between prebasal plate and metacoxal plate, in discharge space, be filled with the inert mixed gas such as He+Xe, Xe+Ne, He+Xe+Ne.The bottom and side of strip groove are coated with the fluorescent powder of different colours, respectively according to red, green, blue arrangement, these fluorescent powder apply that high-voltage discharge produces in-between the electrodes ultraviolet excite after just can produce visible ray.
Generally, subfield is divided into preparatory stage, address period, maintenance phase, the pulse number difference that different subfield maintenance phase is corresponding, and in order to more electric discharge can be realized within the time of one, maintaining umber of pulse arranges abundant, and then realizes better GTG and brightness.But when signal source reset, PAL/NT switch, the field synchronization of signal source is often not accurate enough, causes maintaining pulse and overflow, overflow once there is maintenance pulse, then can cause flicker, have a strong impact on the visual experience of user.
Summary of the invention
For the technical matters that the maintenance pulse existed in prior art is overflowed, the invention discloses a kind of method of placing maintenance pulse and overflowing.
Technical scheme of the present invention is as follows:
A kind of method preventing maintenance pulse from overflowing, it specifically comprises following steps: a frame is divided into N number of subfield, each subfield have the whole image of initialization reset cycle, select sweep trace in the addressing period of selected scanning line selection discharge cell, the maintenance cycle according to discharge count amount concrete manifestation gray level, wherein the reset cycle is identical with addressing period, the maintenance umber of pulse of maintenance cycle and distribution presses ratio to be increased, and is placed on finally by maintaining the maximum subfield of umber of pulse in a frame; Jump along coming then detecting in field sync signal, sequentially carry out reset cycle, addressing period and maintenance cycle, jumping along coming then detecting under field sync signal, terminating this frame and driving, preparing a new frame.
Preferably, above-mentioned this frame of end drives and is specially: the maintenance pulse of last subfield is blocked.
Preferably, said method also comprises: terminate this frame and drive, when preparing a new frame, input signal, detects in next field sync signal and jump edge.
Preferably, above-mentioned N is 8,10 or 12.
Beneficial effect of the present invention is: be placed on finally by maintaining the maximum subfield of umber of pulse (weight limit subfield) in a frame, the maintenance umber of pulse of weight limit subfield is maximum, surprisingly shorten in lock in time, when likely occurring to maintain pulse spilling, edge is jumped under detecting field sync signal, terminate this frame to drive, prepare a new frame, so, no matter there is great change in field sync period scope, have synchronous head to exist, detect under field synchronization jump along after block maintenance pulse, made reliable signal guarantee.
Accompanying drawing explanation
?fig. 1 is the method flow diagram preventing from maintaining pulse spilling of the present invention.
Embodiment
Below in conjunction with Figure of description, embodiments of the present invention are illustrated.
The method flow diagram preventing maintenance pulse from overflowing of the present invention as shown in Figure 1.The invention discloses a kind of method preventing from maintaining pulse spilling, it specifically comprises following steps: a frame is divided into N number of subfield, each subfield have the whole image of initialization reset cycle, select sweep trace in the addressing period of selected scanning line selection discharge cell, the maintenance cycle according to discharge count amount concrete manifestation gray level, wherein the reset cycle is identical with addressing period, the maintenance umber of pulse of maintenance cycle and distribution presses ratio to be increased, and is placed on finally by maintaining the maximum subfield of umber of pulse in a frame; Jump along coming then detecting in field sync signal, sequentially carry out reset cycle, addressing period and maintenance cycle, jumping along coming then detecting under field sync signal, terminating this frame and driving, preparing a new frame.First technique scheme is placed on finally by maintaining the maximum subfield of umber of pulse (weight limit subfield) in a frame, the maintenance umber of pulse of weight limit subfield is maximum, surprisingly shorten in lock in time, when likely occurring to maintain pulse spilling, edge is jumped under detecting field sync signal, terminate this frame to drive, prepare a new frame, so, no matter there is great change in field sync period scope, have synchronous head to exist, detect under field synchronization jump along after block maintenance pulse, made reliable signal guarantee.
Preferably, described this frame of end drives and is specially: the maintenance pulse of last subfield is blocked.The maintenance pulse of last subfield is truncated a part, the no electric discharge of whole subfield can not be caused, weight limit subfield has the part of electric discharge must be highlighted part simultaneously, and human eye is in highlighted situation, the change of brightness can not be responsive especially, lock in time on the scene be only transience shorten (ms level) when, user almost discover less than change.Use said method, solve dexterously when not increasing any cost and occur deviation at outside input picture, the cycle of frame data changes, and causes field sync signal to overflow the technical matters of the film flicker brought.
Preferably, described method also comprises: terminate this frame and drive, when preparing a new frame, input signal, detects in next field sync signal and jump edge.In synchronizing cycle, lower edge of jumping is very short to this segment sync time on upper jumping edge, even if this period of time does not place maintenance pulse, little on the brightness impact of a frame.
Preferably, described N is 8,10 or 12.The number of subfield can be determined as required flexibly, convenient for users to use.
Specific embodiment one
When N is 8, under low maintenance pulse situation, after maintenance cycle of the 8th subfield completes, terminate some times in addition to field synchronization, overflowed even if the maintenance pulse that drive waveforms also can not occur in larger change occurs field synchronization.In order to exhibit high brilliance, under high maintenance pulse situation, the maintenance cycle of the 8th subfield has approached next field synchronization, shortens suddenly, will cause and maintain pulse spilling if now there is field sync period.Overflow once maintain pulse, just there will be film flicker phenomenon.
Specific embodiment two
When having 256 gray level display images, the frame period (16.67ms) corresponding to 1/60 second is divided into 10 subfields.10 subfields are divided into reset cycle, addressing period and maintenance cycle more respectively, the reset cycle of each subfield is identical with addressing period, suppose that the maintenance pulse number in maintenance cycle increases with 2k-1 ratio, wherein K=(1,2,3,8,9,10), namely, the maintenance pulse number of the maintenance pulse number of the first subfield to be the maintenance pulse number of the 1, second subfield be the 2, three subfield is 4, the like, the maintenance pulse number of the maintenance pulse number of the 8th subfield to be the maintenance pulse number of the 128, nine subfield be the 256,10th subfield is 512.Jump along coming then detecting in field sync signal, sequentially carry out the first subfield, the second subfield, the 3rd subfield ... reset cycle of the tenth subfield, addressing period and maintenance cycle, detect under field sync signal jump along after, abandon the tenth subfield residue maintain pulse, prepare a new frame.Because the tenth subfield is the subfield that in 10 subfields, weight is maximum, therefore, when occurring surprisingly to shorten lock in time, authority baryon field only can be truncated a part, and the tenth subfield still can be discharged, and the brightness of authority baryon field must be higher, when high brightness, the change of human eye to brightness is insensitive, if the field synchronization time is the shortening of transience, user is imperceptible change almost.Follow-up Frame abandons by the present invention simply, reduces image quality, but first weight limit subfield to be placed on finally, and detect to jump under field sync signal along after, abandon residue maintenance pulse, prepare a new frame.Ensure that the process of new frame data, complete again the display of these frame data simultaneously to greatest extent.
Here sub to invention has been detailed description by specific embodiment, there is provided the description of above-described embodiment in order to make those skilled in the art manufacture or be suitable for the present invention, the various amendments of these embodiments are easy understand for a person skilled in the art.The present invention is not limited to these examples, or some aspect wherein.Scope of the present invention is described in detail by additional claim.
Above-mentioned explanation illustrate and describes a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (3)
1. one kind prevents the method maintaining pulse spilling, it specifically comprises following steps: a frame is divided into N number of subfield, each subfield have the whole image of initialization reset cycle, select sweep trace in the addressing period of selected scanning line selection discharge cell, the maintenance cycle according to discharge count amount concrete manifestation gray level, wherein the reset cycle is identical with addressing period, the maintenance umber of pulse of maintenance cycle and distribution presses ratio to be increased, and is placed on finally by maintaining the maximum subfield of umber of pulse in a frame; Jump along coming then detecting in field sync signal, sequentially carry out reset cycle, addressing period and maintenance cycle, jumping along coming then detecting under field sync signal, terminating this frame and driving, preparing a new frame; Wherein, described this frame of end drives and is specially: the maintenance pulse of last subfield is blocked.
2. prevent the method maintaining pulse spilling as claimed in claim 1, it is characterized in that described method also comprises: terminate this frame and drive, when preparing a new frame, input signal, detects in next field sync signal and jump edge.
3. prevent the method maintaining pulse spilling as claimed in claim 1, it is characterized in that described N is 8,10 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210227943.9A CN102760400B (en) | 2012-07-04 | 2012-07-04 | Method for preventing sustaining pulse from overflowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210227943.9A CN102760400B (en) | 2012-07-04 | 2012-07-04 | Method for preventing sustaining pulse from overflowing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102760400A CN102760400A (en) | 2012-10-31 |
| CN102760400B true CN102760400B (en) | 2015-01-07 |
Family
ID=47054847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210227943.9A Expired - Fee Related CN102760400B (en) | 2012-07-04 | 2012-07-04 | Method for preventing sustaining pulse from overflowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102760400B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956188A (en) * | 2012-12-11 | 2013-03-06 | 四川虹欧显示器件有限公司 | Method and device for fiving plasma display device |
| CN102956189A (en) * | 2012-12-11 | 2013-03-06 | 四川虹欧显示器件有限公司 | Method and device for driving plasma display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433219A (en) * | 2002-01-16 | 2003-07-30 | 汤姆森许可贸易公司 | Video image processing method and device |
| CN1750092A (en) * | 2005-10-14 | 2006-03-22 | 彩虹集团电子股份有限公司 | Method for improving image quality and contrast of plasma display |
| CN102379001A (en) * | 2009-03-31 | 2012-03-14 | 松下电器产业株式会社 | Plasma display panel and drive method for plasma display panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100581899B1 (en) * | 2004-02-02 | 2006-05-22 | 삼성에스디아이 주식회사 | Method for driving discharge display panel by address-display mixing |
-
2012
- 2012-07-04 CN CN201210227943.9A patent/CN102760400B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433219A (en) * | 2002-01-16 | 2003-07-30 | 汤姆森许可贸易公司 | Video image processing method and device |
| CN1750092A (en) * | 2005-10-14 | 2006-03-22 | 彩虹集团电子股份有限公司 | Method for improving image quality and contrast of plasma display |
| CN102379001A (en) * | 2009-03-31 | 2012-03-14 | 松下电器产业株式会社 | Plasma display panel and drive method for plasma display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102760400A (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1319037C (en) | Plamsa display panel display device and its driving method | |
| KR100807485B1 (en) | Plasma display device and driving method thereof | |
| TWI291190B (en) | Display device and plasma display apparatus | |
| CN100492466C (en) | Plasma display device and method of driving the same | |
| KR20070120084A (en) | Plasma display panel apparatus and method for driving the same | |
| CN102760400B (en) | Method for preventing sustaining pulse from overflowing | |
| US20050116888A1 (en) | Panel driving method, panel driving apparatus, and display panel | |
| WO2004114270A1 (en) | Plasma display panel apparatus and method for driving the same | |
| CN102576509A (en) | Plasma display device drive method, plasma display device and plasma display system | |
| CN100520876C (en) | Method and apparatus of driving plasma display panel | |
| CN1307605C (en) | Driving method for plasma displaying board | |
| CN102714006A (en) | Method of driving plasma display device, plasma display device, and plasma display system | |
| JP4576475B2 (en) | Plasma display device and control method thereof | |
| CN100550099C (en) | Plasma display panel device and driving method thereof | |
| US20120081418A1 (en) | Driving method for plasma display panel, and plasma display device | |
| CN100463025C (en) | Plasma display device driver | |
| KR20080014048A (en) | Plasma display panel apparatus driving method and plasma display panel apparatus | |
| EP2023319A2 (en) | Apparatus and method for driving a plasma display panel | |
| CN100370497C (en) | Addressing and display separated driving method for driving plasma display panel | |
| JP4637267B2 (en) | Plasma display device | |
| US7623095B2 (en) | Plasma display panel (PDP) | |
| CN101383123B (en) | Plasma display device | |
| CN101271810B (en) | Plasma display device | |
| CN101071713A (en) | Plasma display panel | |
| CN101271649A (en) | Plasma display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160704 |