CN100416633C - Plasma display device and image processing method thereof - Google Patents
Plasma display device and image processing method thereof Download PDFInfo
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- CN100416633C CN100416633C CNB2006101596135A CN200610159613A CN100416633C CN 100416633 C CN100416633 C CN 100416633C CN B2006101596135 A CNB2006101596135 A CN B2006101596135A CN 200610159613 A CN200610159613 A CN 200610159613A CN 100416633 C CN100416633 C CN 100416633C
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
Abstract
Disclosed is a plasma display device and image processing method thereof. The plasma display device includes a reverse gray scale corrector reversely gray correcting the video signal inputted exteriorly; a first half tone organ dealing the decimal part of the video signal corrected by the reverse gray scale in a half tone; a second half tone organ adding or subtracting any value of the integer gray scale value on the grey value of each pixel distributed in the video signal of half tone processed in the prescribed limit. The invention can reduce the false contour noise displayed on the image of the plasma display device and improve the image quality of the displayed image on the plasma display device.
Description
One, technical field
The invention relates to plasma display system, a kind of plasma display system and image processing method thereof that can improve image quality more of saying so in more detail.
Two, background technology
In general, plasma display system (Plasma Display Apparatus) comprises that the next door that is formed between front panel and the rear panel forms the Plasmia indicating panel of a unit cell.In each unit, be filled with neon (Ne), helium (He) or charging and discharging gas as the mixed gas (Ne+He) of neon and helium and the inert gas that contains small amount of xenon.When relying on HF voltage to discharge, make inert gas send vacuum ultraviolet (Vacuum Ultravioletrays), thereby make the light-emitting phosphor that is formed between the next door come display frame.Such plasma display system structure is not only thin but also light, is the display device of future generation that gets most of the attention.
Fig. 1 is the synoptic diagram of method that shows the image of general plasma display system.
As shown in Figure 1, plasma display system is divided into the mutually different a plurality of subdomains of discharge time with an image frame phase, makes Plasmia indicating panel luminous in relative sub-regions phase of gray-scale value of the vision signal of input, thus display image.
Each subdomain is divided into initial period, the address period of selecting discharge cell that produces discharge equably and relies on discharge time to realize keeping the phase of gray scale.For example, in the time of be with 256 gray scale display images, the image frame phase (16.67ms) that just will be equivalent to 1/60 second is divided into 8 subdomains.
Simultaneously, 8 subdomains are divided into initial period, address period again separately and keep the phase.Here, keep the phase in each subdomain with 2
nThe ratio of (n=0,1,2,3,4,5,6,7) increases.Like this, the phase of keeping changes in each subdomain, therefore can realize the gray scale (Gray level) of image.That is, according to certain principle each subdomain distribute keep the number of pulse after, by the mode of each subdomain of On/Off, with the number of keeping pulse and the representing gradation of the subdomain opened., will be called the subdomain mapping according to the subdomain that gray-scale value is selected to open or close here, the data that will comprise this information are called subdomain mapping code.
The subdomain mapping method has several different methods.For example, number, actual grey number according to the subdomain that uses have many methods.Here, so-called actual grey is meant through the shown gray scale of subdomain mapping, is called and does not make the gray scale that the image processing is showed.When driving plasma display system,, so as shown in Figure 2, there is the problem that false figure noise (false Contour noise) takes place if use actual grey in a large number.
Fig. 2 is the synoptic diagram that an example of existing false figure noise takes place in explanation.
As shown in Figure 2, when 256 gray scales that will from 0 to 255 as actual grey when picture shows, if moving image or user's visual angle is moved, will occur in the false figure noise that occurs white or black line between specific contiguous gray scale.This is the characteristic of factor territory mapping method and the problem that produces is particularly obvious under 127 and 128 contiguous gray scale.And there is the tangible more problem of big image of moving in false figure noise.
Three, summary of the invention
In order to address the above problem, the purpose of this invention is to provide a kind of plasma display system and image processing method thereof that can in the image that shows, reduce false figure noise.
And another object of the present invention is: improve plasma display system and image processing method thereof, raising can improve the plasma display system and the image processing method thereof of the image quality of display image.
For achieving the above object, plasma display system of the present invention comprises: oppositely gray correction is from the reverse gamma corrector of the vision signal of outside input; Partly mediate the 1 half accent device of the decimal composition of the vision signal of managing above-mentioned reverse gray correction; Utilize the arbitrary integer mask, the 2 half of any one value the transfers device in the integer gray-scale value in the specialized range that adds deduct on the gray-scale value of each pixel that is distributed in above-mentioned vision signal of partly mediating reason.
The size of above-mentioned arbitrary integer mask is variable.
The above-mentioned integer gray-scale value that will add deduct by each pixel unit is distributed in above-mentioned arbitrary integer mask arbitrarily.
The above-mentioned the 2 half transfer device to pixel contiguous mutually on the left and right directions carry out above-mentioned add and subtract in opposite computing.
The above-mentioned the 2 half transfer device to pixel contiguous mutually on the above-below direction carry out above-mentioned add and subtract in opposite computing.
The above-mentioned the 2 half transfer device to each pixel N-1 image frame and n image frame carry out above-mentioned add and subtract in opposite computing.
The above-mentioned the 2 half transfers device to comprise: the integer error diffuser of will the above-mentioned the 1 half transferring the difference value of the gray-scale value of vision signal of device input and the gray-scale value by above-mentioned the 2 half accent device conversion to spread to neighborhood pixels.
The integer gray-scale value of afore mentioned rules in enclosing is more than 0 below 5.
The present invention also comprises: utilize above-mentioned vision signal from outside input, any one information at least in the amount of exercise of detected image or the moving region is controlled the above-mentioned the 2 half and is transferred the motion detector of the work of device.
Image processing method according to plasma display system of the present invention comprised with the next stage: (a), oppositely gray correction is from the stage of the vision signal of outside input; (b), partly mediate the stage of the decimal composition of the vision signal of managing above-mentioned reverse gray correction; (c), utilize the arbitrary integer mask, the stage of any one value in the integer gray-scale value in the specialized range that on the gray-scale value of each pixel that is distributed in above-mentioned vision signal of partly mediating reason, adds deduct.
The size of above-mentioned arbitrary integer mask is variable.
Any one value is distributed in above-mentioned arbitrary integer mask arbitrarily in the above-mentioned integer gray-scale value that will add deduct by each pixel unit.
In above-mentioned (c) stage, to pixel mutually contiguous on the left and right directions carry out above-mentioned add and subtract in opposite computing.
In above-mentioned (c) stage, to pixel mutually contiguous on the above-below direction carry out above-mentioned add and subtract in opposite computing.
In above-mentioned (c) stage, to each pixel N-1 image frame and n image frame carry out above-mentioned add and subtract in opposite computing.
Above-mentioned (c) stage comprises: transfer the difference value of gray-scale value of device conversion to integer error diffusion stage that contiguous pixel spreads with the gray-scale value of the vision signal of above-mentioned (b) stage input with by the above-mentioned the 2 half.
Integer gray-scale value in the afore mentioned rules scope is more than 0 below 5.
The present invention also comprises: utilize above-mentioned vision signal from outside input, any one information at least in the amount of exercise of detected image or the moving region is controlled the above-mentioned the 2 half stage of working of transferring device.
The present invention has following effect:
Can in the image that plasma display system shows, reduce false figure noise; And, can improve the image quality of the image that plasma display system shows.
Four, description of drawings
Fig. 1 is the synoptic diagram of method that shows the image of general plasma display system.
Fig. 2 is the synoptic diagram that an example of existing false figure noise takes place in explanation.
Fig. 3 is the synoptic diagram of explanation according to the plasma display system of one embodiment of the invention.
Fig. 4 is that explanation is transferred the synoptic diagram of the operating characteristic of device according to the 2 half of one embodiment of the invention.
Fig. 5 a and Fig. 5 b explanation are according to the synoptic diagram of the arbitrary integer mask of one embodiment of the invention.
The symbol description of major part in the accompanying drawing
310: reverse gamma corrector 320: motion detector
Transferred device to transfer device in 340: the 2 half in 330: the 1 half
350: subdomain mapper 410: arbitrary integer mask maker
460: the 3 arithmetical unit
Five, embodiment
Below, with reference to accompanying drawing the foundation specific embodiments of the invention are described.
Fig. 3 is the synoptic diagram of explanation according to the plasma display system of one embodiment of the invention.
As shown in Figure 3, the plasma display system according to one embodiment of the present of invention comprises: oppositely gamma corrector 310, motion detector the 320, the 1 half transfer device the 330, the 2 half to transfer device 340 and subdomain mapper 350.
Oppositely gamma corrector 310 is to the vision signal of the reverse gray correction of each image frame from the outside input.The brightness value of the actual displayed that is characterized as the vision signal gray-scale value that plasma display system has forms linearity curve.On the contrary, vision signal from the outside input, the brightness value of gray-scale value has gamma characteristic, therefore one embodiment of the present of invention have reverse gamma corrector 210, reverse gray correction outer video signal, so that for gray-scale value, the picture of plasma display system actual displayed has linear brightness value.
The 1 half transfers device 330 half to transfer the vision signal of reverse gamma corrector 310 inputs.Oppositely the vision signal of gray correction has reduced the gray scale expressive force in its signal processing.For this is compensated, have half and transfer device 330, partly mediate the fraction part of the vision signal of the reverse gray correction of reason, thereby in the gray scale expressive force that raising has reduced, guarantee the gray scale linearity.This half accent method has shake (dithering) and error diffusion method.Dither method and error diffusion method can use or mixed the use separately.
The 2 half transfers device 340 to utilize the arbitrary integer mask, any one value in being distributed in the 1 half integer gray-scale value of transferring in the specialized range that adds deduct on the gray-scale value of each pixel of vision signal of device 330 inputs.That is, consider motion, use the arbitrary integer mask,, thereby have the effect of disperseing false figure noise with former gray-scale value, greater than the gray-scale value of former gray-scale value or less than any one shows the gray-scale value of original video signal in the gray-scale value of former gray-scale value.For example, former gray-scale value is 127 and 128 vision signal, is transformed to 125 by relying on the arbitrary integer mask with 127, relies on the arbitrary integer mask to be transformed to 127 with 128, thereby can suppress false figure noise.Here, the integer gray-scale value in the specialized range is 0 below more than 5, thereby can maximize false figure noise inhibition effect.In addition, consider that the image that shows according to the integer gray-scale value that adds deduct is distorted, transfer device 340 to comprise according to the 2 half of one embodiment of the invention: with the 1 half transfer device 330 inputs vision signal gray-scale value and transfer the difference value of gray-scale value of device conversion to the integer error diffuser (not shown) of contiguous pixel diffusion by the 2 half.Transfer device 340 to be described in more details with reference to Fig. 4 to Fig. 6 to the 2 half afterwards.
Fig. 4 is that explanation is transferred the synoptic diagram of the operating characteristic of device according to the 2 half of one embodiment of the invention.
As shown in Figure 4, transfer device 400 to comprise according to the 2 half of one embodiment of the present of invention: arbitrary integer mask maker the 410, the 1st arithmetical unit 420, limiter (Limiter) the 430, the 2nd arithmetical unit 440, error amount maker 450 and the 3rd arithmetical unit 460.
Arbitrary integer mask maker 410 comprises: add integer gray-scale value maker 411, subtract integer gray-scale value maker 412 and add/subtract selector switch 413.Add integer gray-scale value maker 411 and select 0 or more in the integer gray-scale value below 5 any one, export to adding/subtract selector switch 413.If select to add the integer gray-scale value of integer gray-scale value maker 411 outputs, just transfer the vision signal of device input to add above-mentioned integer gray-scale value the 1 half.Subtract integer gray-scale value maker 412 and select 0 or more in the integer gray-scale value below 5 any one, export to adding/subtract selector switch 413.If select to subtract the integer gray-scale value of integer gray-scale value maker 412 outputs, just transfer the vision signal of device input to deduct above-mentioned integer gray-scale value the 1 half.Add/subtract in the integer gray-scale value that selector switch 413 selects to add integer gray-scale value maker 411 and subtract 412 inputs of integer gray-scale value maker.
The 1st arithmetical unit 420 is transferred the gray-scale value of the vision signal of device input for the 1 half, and the integer gray-scale value adds deduct.That is,, cover the arbitrary integer mask that generates by arbitrary integer mask maker 410 for the 1 half vision signal of transferring device to import.Thus, thus changing gray-scale value disperses the false figure noise composition.
Limiter 430 restriction gray-scale values.Promptly, just in case work as the lowest gray value 0 that the gray-scale value of the vision signal of the 1st arithmetical unit 420 inputs can show less than plasma display system, perhaps the highest gray-scale value that can show greater than plasma display system for example greater than 255 o'clock, is can the gray-scale displayed value with its correction.
The difference value of the former gray-scale value and the gray-scale value that limiter 450 is imported of device input is transferred in 440 computings the 1 half of the 2nd arithmetical unit.
The 3rd arithmetical unit 460 is carried out error diffusion with the error amount of integer error amount maker 450 generations and the gray-scale value addition of neighborhood pixels.With functional unification, constitute error diffuser according to the 2nd arithmetical unit 440, error amount maker 450 and the 3rd arithmetical unit 460 of one embodiment of the invention here.Like this, the vision signal of error diffusion is exported to the subdomain mapper.
Fig. 5 a and Fig. 5 b explanation are according to the synoptic diagram of the arbitrary integer mask of one embodiment of the invention.What Fig. 5 a showed is by odd number image frame (Odd frame) and even number image frame (Even frame), specialized range integer gray-scale value (low1, low2, low3, low4, high1, high2, high3 is high4) with to its 2 * 2 arbitrary integer masks that utilize.Fig. 5 b shows is a example according to 6 * 6 arbitrary integer masks of Fig. 5 a.
With reference to Fig. 5 a and Fig. 5 b, any one value arbitrarily is distributed in the arbitrary integer mask by each pixel unit in the integer gray-scale value that adds deduct.And, for pixel contiguous mutually on the left and right directions, the 2 half transfer device for carry out add and subtract in opposite computing, the high value (High) that pixel value performance contiguous mutually on the left and right directions is added and show the low value (Low) that subtracts and be distributed in the arbitrary integer mask separately.And, for pixel contiguous mutually on the above-below direction, the 2 half transfer device for carry out add and subtract in opposite computing, the high value (High) that pixel value performance contiguous mutually on the above-below direction is added and show the low value (Low) that subtracts and be distributed in the arbitrary integer mask separately.Like this, not only for area of space but also for time zone, the N-1 image frame of each pixel, be odd number image frame and n image frame, promptly for the even number image frame, for carry out above-mentioned add and subtract in opposite computing, each pixel replaces odd number image frame and even number image frame, thus the low value that high value that performance is added and performance subtract is distributed in the arbitrary integer mask.Like this, owing to can have effect more arbitrarily, therefore can disobey certain tendency disperses false figure noise arbitrarily.
Like this, with the wide scope of the integer gray-scale value that adds deduct be set at 0 to 5, thereby in the image that moves, can disperse false figure noise more.That is, the white wire or the black line that produce because of false figure noise do not occur, but show as a plurality of points that are dispersed in the area peripheral edge that false contouring takes place, thereby have the effect that the vision that makes the people almost be can't see.
Image processing method according to the plasma display system of one embodiment of the invention comprises: oppositely gray correction is from the stage of the vision signal of outside input; Partly mediate the stage of the decimal composition of the vision signal of managing reverse gray correction; Utilize the arbitrary integer mask, the stage of any one value in the integer gray-scale value in the specialized range that on the gray-scale value of each pixel that is distributed in the vision signal of partly mediating reason, adds deduct.Here, to the image processing method of the plasma display system of foundation one embodiment of the invention specifically, the operating characteristic according to the plasma display system of one embodiment of the invention by Fig. 3 to Fig. 5 b is illustrated, and is therefore omitted.
As mentioned above, can in the image that plasma display system shows, reduce false figure noise.And, can improve the image quality of the image that plasma display system shows.
As mentioned above, in the scope that does not change the technology of the present invention thought and technical characterictic, the staff of the technical field of the invention can implement technology of the present invention with other concrete forms and constitute.
Therefore, embodiment recited above is exemplary in all respects, does not have limited.Patent claim of the present invention is set forth by claims, and all changes or the deformation form that are drawn by equal notion all belong to scope of the present invention.
Claims (16)
1. plasma display system is characterized in that: it comprises the reverse gamma corrector of reverse gray correction from the vision signal of outside input; Partly mediate the 1 half accent device of the decimal composition of the vision signal of managing above-mentioned reverse gray correction; Utilize the arbitrary integer mask, the 2 half of any one value the transfers device in the integer gray-scale value in the specialized range that adds deduct on the gray-scale value of each pixel that is distributed in above-mentioned vision signal of partly mediating reason.
2. plasma display system according to claim 1 is characterized in that: the size of above-mentioned arbitrary integer mask is variable.
3. plasma display system according to claim 1 is characterized in that: the above-mentioned integer gray-scale value that will add deduct by each pixel unit is distributed in above-mentioned arbitrary integer mask arbitrarily.
4. plasma display system according to claim 1 is characterized in that: the above-mentioned the 2 half transfer device to pixel contiguous mutually on the left and right directions carry out above-mentioned add and subtract in opposite computing.
5. plasma display system according to claim 1 is characterized in that: the above-mentioned the 2 half transfer device to pixel contiguous mutually on the above-below direction carry out above-mentioned add and subtract in opposite computing.
6. plasma display system according to claim 1 is characterized in that: the above-mentioned the 2 half transfer device to each pixel N-1 image frame and n image frame carry out above-mentioned add and subtract in opposite computing.
7. plasma display system according to claim 1 is characterized in that: the above-mentioned the 2 half transfers device to comprise: the integer error diffuser of will the above-mentioned the 1 half transferring the difference value of the gray-scale value of vision signal of device input and the gray-scale value by above-mentioned the 2 half accent device conversion to spread to neighborhood pixels.
8. according to any described plasma display system in the claim 1 to 7, it is characterized in that: the integer gray-scale value in the afore mentioned rules scope is more than 0 below 5.
9. the image processing method of a plasma display system is characterized in that comprising with the next stage:
(a), reverse gray correction is from the stage of the vision signal of outside input;
(b), partly mediate the stage of the decimal composition of the vision signal of managing above-mentioned reverse gray correction;
(c), utilize the arbitrary integer mask, the stage of any one value in the integer gray-scale value in the specialized range that on the gray-scale value of each pixel that is distributed in above-mentioned vision signal of partly mediating reason, adds deduct.
10. the image processing method of plasma display system according to claim 9, it is characterized in that: the size of above-mentioned arbitrary integer mask is variable.
11. the image processing method of plasma display system according to claim 9 is characterized in that: any one value is distributed in above-mentioned arbitrary integer mask arbitrarily in the above-mentioned integer gray-scale value that will add deduct by each pixel unit.
12. the image processing method of plasma display system according to claim 9 is characterized in that: in above-mentioned (c) stage, to pixel mutually contiguous on the left and right directions carry out above-mentioned add and subtract in opposite computing.
13. the image processing method of plasma display system according to claim 9 is characterized in that: in above-mentioned (c) stage, to pixel mutually contiguous on the above-below direction carry out above-mentioned add and subtract in opposite computing.
14. the image processing method of plasma display system according to claim 9 is characterized in that: in above-mentioned (c) stage, to each pixel N-1 image frame and n image frame carry out above-mentioned add and subtract in opposite computing.
15. the image processing method of plasma display system according to claim 9 is characterized in that: above-mentioned (c) stage comprises: transfer the difference value of gray-scale value of device conversion to integer error diffusion stage that contiguous pixel spreads with the gray-scale value of the vision signal of above-mentioned (b) stage input with by the above-mentioned the 2 half.
16. the image processing method according to any described plasma display system of claim 9 to 15 is characterized in that: the integer gray-scale value in the afore mentioned rules scope is more than 0 below 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050129104 | 2005-12-23 | ||
| KR1020050129104A KR20070067823A (en) | 2005-12-23 | 2005-12-23 | Plasma display apparatus and image processing method thereof |
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| CN100416633C true CN100416633C (en) | 2008-09-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1156468A1 (en) * | 1997-12-10 | 2001-11-21 | Matsushita Electric Industrial Co., Ltd. | Detector for detecting pseudo-contour noise and display apparatus using the detector |
| CN1462423A (en) * | 2000-03-22 | 2003-12-17 | 汤姆森许可贸易公司 | Method and device for processing vedio data on display device |
| JP2005173603A (en) * | 2003-12-08 | 2005-06-30 | Lg Electronics Inc | Apparatus and method for driving plasm display panel |
-
2005
- 2005-12-23 KR KR1020050129104A patent/KR20070067823A/en not_active Application Discontinuation
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- 2006-09-26 CN CNB2006101596135A patent/CN100416633C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1156468A1 (en) * | 1997-12-10 | 2001-11-21 | Matsushita Electric Industrial Co., Ltd. | Detector for detecting pseudo-contour noise and display apparatus using the detector |
| CN1462423A (en) * | 2000-03-22 | 2003-12-17 | 汤姆森许可贸易公司 | Method and device for processing vedio data on display device |
| JP2005173603A (en) * | 2003-12-08 | 2005-06-30 | Lg Electronics Inc | Apparatus and method for driving plasm display panel |
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| CN1920917A (en) | 2007-02-28 |
| KR20070067823A (en) | 2007-06-29 |
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