CN102231257A - Display method and device for plasma display panel - Google Patents
Display method and device for plasma display panel Download PDFInfo
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- CN102231257A CN102231257A CN2011101699151A CN201110169915A CN102231257A CN 102231257 A CN102231257 A CN 102231257A CN 2011101699151 A CN2011101699151 A CN 2011101699151A CN 201110169915 A CN201110169915 A CN 201110169915A CN 102231257 A CN102231257 A CN 102231257A
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Abstract
The invention provides a display method and a display device for a plasma display panel. The method comprises the following steps of: determining the brightness needed by guaranteeing the uniformity of an output picture of the plasma display panel; calculating maintenance pulse number needed by the brightness which is determined by the plasma display panel for output; and displaying the picture on the plasma display panel according to the maintenance pulse number. By the method and the device, a loading effect of a plasma screen can be effectively reduced, and the consistency and uniformity of screen display are improved.
Description
Technical field
The present invention relates to plasma display technique field, in particular to a kind of display packing and device of Plasmia indicating panel.
Background technology
Flat panel display develop rapidly at present, as a kind of technology very important in the flat panel display, plasma shows with its contrast height, and response speed is fast, and visible angle is good etc., and advantage has obtained liking of a lot of people.But present Plasmia indicating panel itself has certain defective, such as load effect, has influenced display effect.
Plasmia indicating panel is a slab construction owing to what adopt, and each pixel is made up of three display units of red, green, blue, and each display unit needs X, Y, and three electrodes of A can be lighted luminous.Shared X of all display units and Y electrode on each row, and because display unit is very little, so electrode itself is very thin very long structure.Under this condition, the resistance of electrode itself just can not be ignored, and when lighting simultaneously with a plurality of display units in the delegation, the load current on the electrode is bigger, thereby the pressure drop that electric current is arrived on the display unit increases, so the brightness of each display unit will reduce.On whole front panel, the pixel of lighting when certain delegation is many exactly, and this delegation looks will be darker than the row that a bright pixel is lacked.That is, picture displayed presents the situation of brightness irregularities.
Load effect is a kind of defective of plasma display technique itself, is because the resistance characteristic of material itself causes, can not solve fully, but can improve and reduce this phenomenon by certain approaches and methods.
At correlation technique in mention since load effect can cause picture displayed to present the uneven problem of good degree, effective solution is not proposed at present as yet.
Summary of the invention
The present invention aims to provide a kind of display packing and device of Plasmia indicating panel, with solve mention in the correlation technique because load effect can cause picture displayed to present the uneven problem of good degree.
According to an aspect of the present invention, provide a kind of display packing of Plasmia indicating panel, having comprised: determined to guarantee the brightness of the required output of Plasmia indicating panel output image evenness; Calculate described Plasmia indicating panel and export the needed umber of pulse of keeping of described brightness; Keep umber of pulse display frame on described Plasmia indicating panel according to described.
Preferably, the brightness of the required output of described definite assurance Plasmia indicating panel output image evenness comprises: described brightness is determined in power on conductor length, bearing power and the voltage drop of polar curve according to described Plasmia indicating panel.
Preferably, the described Plasmia indicating panel of described calculating is exported the needed umber of pulse of keeping of described brightness, comprising: the described umber of pulse of keeping is calculated by each the behavior unit with described Plasmia indicating panel output picture.
Preferably, calculate the described umber of pulse of keeping, comprising: needed first umber of pulse when determining that current delegation reaches the maximum load state with each behavior unit of described Plasmia indicating panel output picture; Needed second umber of pulse when determining that described current delegation reaches the least load state, wherein, described least load state is consistent with the brightness of the pixel that the maximum load state is lighted; Relatively obtain the difference of described first umber of pulse and described second umber of pulse; Utilize described difference and described number of working as total pixel in the previous row to determine the umber of pulse of each pixel correspondence; Determine the described umber of pulse of keeping according to the number of the pixel of being lighted in the described current delegation and the umber of pulse of described each pixel correspondence when previous row.
Preferably, the state of described maximum load is: described whole pixels when previous row are all lighted, and show complete white image.
Preferably, the state of described least load is: described when previous row demonstration all black picture, and only in the middle of previous row, there is one the one wide vertical curve of pixel to be lighted described.
According to another aspect of the present invention, provide a kind of display device of Plasmia indicating panel, having comprised: determination module is used for determining to guarantee the brightness of the required output of Plasmia indicating panel output image evenness; Computing module is used to calculate described Plasmia indicating panel and exports the needed umber of pulse of keeping of described brightness; Display module is used for keeping umber of pulse display frame on described Plasmia indicating panel according to described.
Preferably, described determination module also is used for according to described Plasmia indicating panel power on conductor length, bearing power and the voltage drop of polar curve and determines described brightness.
Preferably, described computing module also is used for calculating the described umber of pulse of keeping with each behavior unit of described Plasmia indicating panel output picture.
Preferably, described computing module also is used for determining needed first umber of pulse when current delegation reaches the maximum load state; Needed second umber of pulse when determining that described current delegation reaches the least load state, wherein, described least load state is consistent with the brightness of the pixel that the maximum load state is lighted; Relatively obtain the difference of described first umber of pulse and described second umber of pulse; Utilize described difference and described number of working as total pixel in the previous row to determine the umber of pulse of each pixel correspondence; Determine the described umber of pulse of keeping according to the number of the pixel of being lighted in the described current delegation and the umber of pulse of described each pixel correspondence when previous row.
In embodiments of the present invention, determine to guarantee the brightness of the required output of Plasmia indicating panel output image evenness, calculate the needed umber of pulse of keeping of Plasmia indicating panel output brightness, according to keeping umber of pulse display frame on Plasmia indicating panel.The method that adopts the embodiment of the invention to provide can effectively reduce the load effect of plasma screen, improves the consistance and the homogeneity of screen display; And the function that the embodiment of the invention provides is realized by software, can effectively reduce cost.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is that the plasma screen according to the embodiment of the invention shows uneven synoptic diagram;
Fig. 2 is the processing flow chart according to the display packing of the Plasmia indicating panel of the embodiment of the invention;
Fig. 3 is the structural representation according to the display device of the Plasmia indicating panel of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Mention in the correlation technique, the resistance of electrode itself just can not be ignored, and when lighting simultaneously with a plurality of display units in the delegation, the load current on the electrode is bigger, thereby the pressure drop that electric current is arrived on the display unit increases, so the brightness of each display unit will reduce.On whole front panel, the pixel of lighting when certain delegation is many exactly, and this delegation looks will be darker than the row that a bright pixel is lacked.That is, picture displayed presents the situation of brightness irregularities.
The performance of load effect is exactly that the many capable mean flow rates of a bright pixel are lower than the few row of a bright pixel, thereby makes whole image inhomogeneous.For high-high brightness, the homogeneity of screen intensity is more important.So the embodiment of the invention selects to reduce the maximum brightness of a local white screen.That is to say and make screen show that non-full brightness value when white keeps certain remaining, does not reach peak brightness.As shown in Figure 1, when plasma screen is showing secret note on the complete white background, can find that the brightness meeting on the both sides (A and B district) of secret note is higher than other parts (C and D district), Here it is load effect, the principle of the embodiment of the invention is exactly the brightness in A district and B district among the reduction figure, make it consistent, thereby improve the homogeneity of screen display with the D district brightness of C district.
Noted earlier, because the resistance characteristic of plasma display apparatus material itself, make plasma display apparatus in work, can produce load effect, and the plasma panel size is big more, this phenomenon is more obvious, influence display effect, therefore needed certain method to improve this phenomenon.
On the origin cause of formation of the load effect of Plasmia indicating panel, because load effect is because the resistance of metal electrode self causes the decline of voltage, therefore can from circuit, compensate this pressure drop, thereby reduction load effect, but can make driving circuit become very complicated like this, increased cost greatly, so the embodiment of the invention from the another one aspect, is just improved this situation from software.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of display packing of Plasmia indicating panel, and its treatment scheme comprises as shown in Figure 2:
Step S202, definite brightness that guarantees the required output of Plasmia indicating panel output image evenness;
The needed umber of pulse of keeping of brightness that step S204, the output of calculating Plasmia indicating panel are determined;
Step S206, keep umber of pulse display frame on Plasmia indicating panel according to what calculate.
In embodiments of the present invention, determine to guarantee the brightness of the required output of Plasmia indicating panel output image evenness, calculate the needed umber of pulse of keeping of Plasmia indicating panel output brightness, according to keeping umber of pulse display frame on Plasmia indicating panel.The method that adopts the embodiment of the invention to provide can effectively reduce the load effect of plasma screen, improves the consistance and the homogeneity of screen display; And the function that the embodiment of the invention provides is realized by software, can effectively reduce cost.
During enforcement, flow process as shown in Figure 2, step S202 determines to guarantee the brightness of the required output of Plasmia indicating panel output image evenness when implementing, can be in the following way: brightness is determined in power on conductor length, bearing power and the voltage drop of polar curve according to Plasmia indicating panel.For example, setting up a kind of algorithm according to the power on relation of conductor length, bearing power and voltage drop of polar curve of display, when going out to show a certain concrete picture according to this algorithm computation, is the brightness that guarantees that the picture homogeneity should be exported.This need draw each parameter by a series of test, thereby display screen is provided with.
The reason that load effect produces is because the pressure drop that the resistance of luminescence unit electrode self produces causes, because drive electrode is multiplexing with behavior unit, what that is to say same enforcement usefulness on the display screen is same drive electrode, therefore load effect only occurs in in the behavior unit, and vertically is not influence.Therefore, calculate Plasmia indicating panel and export when brightness is needed keeps umber of pulse, keep umber of pulse with each behavior unit's calculating of Plasmia indicating panel output picture and get final product.
During enforcement, keep umber of pulse with each behavior unit's calculating of Plasmia indicating panel output picture, treatment scheme can be as follows:
Step 1, needed first umber of pulse when determining that current delegation reaches the maximum load state;
Step 2, needed second umber of pulse when determining that current delegation reaches the least load state, wherein, the least load state is consistent with the brightness of the pixel that the maximum load state is lighted;
Step 3, relatively obtain the difference of first umber of pulse and second umber of pulse;
Step 4, utilize difference and the number of total pixel is determined each pixel correspondence in the previous row umber of pulse;
Step 5, according to being determined the umber of pulse of keeping by the umber of pulse of the number of the pixel lighted and each pixel correspondence in the current delegation when previous row.
Wherein, the state of maximum load is: when whole pixels of previous row are all lighted, show complete white image.The state of least load is: when previous row shows all black picture, only having one the one wide vertical curve of pixel to be lighted in the middle of previous row.
Be that example describes now with once concrete testing process: brightness and bearing power when at first needing to test maximum load on a certain concrete row, can realize by showing complete white image; And then bright spot peak brightness and the bearing power of test during least load, can in the middle of showing complete black, there be one the one wide vertical curve of pixel to realize.
Adjust the brightness of this bright line, the brightness when making it with complete white is consistent, and L is counted in record driven element field pulse at this moment.
Here face is in order to reduce the complicacy of algorithm, and we think that here brightness and pulse number are linear relations.
Follow according to complete and when bright and the pulse number of delegation when only brighter poor, be designated as C.
C on average is designated as P for the number of pixel in the delegation.By the number of some bright pixel in P value and the delegation, can calculate the umber of pulse of keeping that bright field needs in the actual displayed then.
The pulse number that calculates according to said method promptly is the needed umber of pulse of keeping of bright field in the actual displayed process.Owing to be the brightness that reduces load bright field low the time here, rather than the brightness that improves load bright field when high, therefore can cut down the consumption of energy.
By said method, can improve the load effect of plasma panel in procedure for displaying.
Based on same inventive concept, the embodiment of the invention also provides a kind of display device of Plasmia indicating panel, and its structure comprises as shown in Figure 3:
Wherein, determination module 301, computing module 302 and display module 303 link to each other successively.
In one embodiment, preferred, determination module 301 can also be used for according to Plasmia indicating panel power on conductor length, bearing power and the voltage drop of polar curve and determine brightness.
In one embodiment, preferred, computing module 302 can also be used for keeping umber of pulse with each behavior unit's calculating of Plasmia indicating panel output picture.
In one embodiment, preferred, computing module 302 can also be used for determining needed first umber of pulse when current delegation reaches the maximum load state; Needed second umber of pulse when determining that current delegation reaches the least load state, wherein, the least load state is consistent with the brightness of the pixel that the maximum load state is lighted; Relatively obtain the difference of first umber of pulse and second umber of pulse; Utilize difference and the number of total pixel is determined each pixel correspondence in the previous row umber of pulse; Determine to work as the umber of pulse of keeping of previous row according to the number of the pixel of being lighted in the current delegation and the umber of pulse of each pixel correspondence.
As can be seen from the above description, the present invention has realized following technique effect:
In embodiments of the present invention, determine to guarantee the brightness of the required output of Plasmia indicating panel output image evenness, calculate the needed umber of pulse of keeping of Plasmia indicating panel output brightness, according to keeping umber of pulse display frame on Plasmia indicating panel.The method that adopts the embodiment of the invention to provide can effectively reduce the load effect of plasma screen, improves the consistance and the homogeneity of screen display; And the function that the embodiment of the invention provides is realized by software, can effectively reduce cost.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, carry out by calculation element thereby they can be stored in the memory storage, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the display packing of a Plasmia indicating panel is characterized in that, comprising:
Determine to guarantee the brightness of the required output of Plasmia indicating panel output image evenness;
Calculate described Plasmia indicating panel and export the needed umber of pulse of keeping of described brightness;
Keep umber of pulse display frame on described Plasmia indicating panel according to described.
2. method according to claim 1, it is characterized in that, the brightness of the required output of described definite assurance Plasmia indicating panel output image evenness comprises: described brightness is determined in power on conductor length, bearing power and the voltage drop of polar curve according to described Plasmia indicating panel.
3. method according to claim 1 and 2, it is characterized in that, the described Plasmia indicating panel of described calculating is exported the needed umber of pulse of keeping of described brightness, comprising: the described umber of pulse of keeping is calculated by each the behavior unit with described Plasmia indicating panel output picture.
4. method according to claim 3 is characterized in that, calculates the described umber of pulse of keeping with each behavior unit of described Plasmia indicating panel output picture, comprising:
Needed first umber of pulse when determining that current delegation reaches the maximum load state;
Needed second umber of pulse when determining that described current delegation reaches the least load state, wherein, described least load state is consistent with the brightness of the pixel that the maximum load state is lighted;
Relatively obtain the difference of described first umber of pulse and described second umber of pulse;
Utilize described difference and described number of working as total pixel in the previous row to determine the umber of pulse of each pixel correspondence;
Determine the described umber of pulse of keeping according to the number of the pixel of being lighted in the described current delegation and the umber of pulse of described each pixel correspondence when previous row.
5. method according to claim 4 is characterized in that, the state of described maximum load is: described whole pixels when previous row are all lighted, and show complete white image.
6. method according to claim 4 is characterized in that, the state of described least load is: described when previous row demonstration all black picture, and only in the middle of previous row, there is one the one wide vertical curve of pixel to be lighted described.
7. the display device of a Plasmia indicating panel is characterized in that, comprising:
Determination module is used for determining to guarantee the brightness of the required output of Plasmia indicating panel output image evenness;
Computing module is used to calculate described Plasmia indicating panel and exports the needed umber of pulse of keeping of described brightness;
Display module is used for keeping umber of pulse display frame on described Plasmia indicating panel according to described.
8. device according to claim 7 is characterized in that, described determination module also is used for according to described Plasmia indicating panel power on conductor length, bearing power and the voltage drop of polar curve and determines described brightness.
9. according to claim 7 or 8 described devices, it is characterized in that described computing module also is used for calculating the described umber of pulse of keeping with each behavior unit of described Plasmia indicating panel output picture.
10. device according to claim 9 is characterized in that, described computing module also is used for determining needed first umber of pulse when current delegation reaches the maximum load state; Needed second umber of pulse when determining that described current delegation reaches the least load state, wherein, described least load state is consistent with the brightness of the pixel that the maximum load state is lighted; Relatively obtain the difference of described first umber of pulse and described second umber of pulse; Utilize described difference and described number of working as total pixel in the previous row to determine the umber of pulse of each pixel correspondence; Determine the described umber of pulse of keeping according to the number of the pixel of being lighted in the described current delegation and the umber of pulse of described each pixel correspondence when previous row.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101699151A CN102231257A (en) | 2010-09-30 | 2011-06-22 | Display method and device for plasma display panel |
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| CN201010507938 | 2010-09-30 | ||
| CN201010507938.4 | 2010-09-30 | ||
| CN2011101699151A CN102231257A (en) | 2010-09-30 | 2011-06-22 | Display method and device for plasma display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751926A (en) * | 2019-10-31 | 2020-02-04 | 武汉天马微电子有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037917A (en) * | 1996-12-25 | 2000-03-14 | Nec Corporation | Plasma display system |
| CN1432983A (en) * | 2001-12-27 | 2003-07-30 | 索尼公司 | Plasma display unit and its brightness correction method and display method |
| US20040150586A1 (en) * | 2003-02-05 | 2004-08-05 | Pioneer Corporation | Display device |
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2011
- 2011-06-22 CN CN2011101699151A patent/CN102231257A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037917A (en) * | 1996-12-25 | 2000-03-14 | Nec Corporation | Plasma display system |
| CN1432983A (en) * | 2001-12-27 | 2003-07-30 | 索尼公司 | Plasma display unit and its brightness correction method and display method |
| US20040150586A1 (en) * | 2003-02-05 | 2004-08-05 | Pioneer Corporation | Display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751926A (en) * | 2019-10-31 | 2020-02-04 | 武汉天马微电子有限公司 | Display panel and display device |
| CN110751926B (en) * | 2019-10-31 | 2021-12-28 | 武汉天马微电子有限公司 | Display panel and display device |
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Application publication date: 20111102 |