CN1825421A - Device and method for compensating panel area non-uniformity - Google Patents
Device and method for compensating panel area non-uniformity Download PDFInfo
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- CN1825421A CN1825421A CN 200510052834 CN200510052834A CN1825421A CN 1825421 A CN1825421 A CN 1825421A CN 200510052834 CN200510052834 CN 200510052834 CN 200510052834 A CN200510052834 A CN 200510052834A CN 1825421 A CN1825421 A CN 1825421A
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- 230000003287 optical effect Effects 0.000 claims description 29
- 230000000694 effects Effects 0.000 claims description 11
- 230000001915 proofreading effect Effects 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 3
- 230000001447 compensatory effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Abstract
A plurality of display areas are defined on the display panel, wherein each display area has panel characteristic data. A pixel data is received, and it is determined which of the display regions the pixel data corresponds to. And correcting the pixel data according to the panel characteristic data of the display area corresponding to the pixel data. And transmitting the corrected pixel data to a display panel.
Description
Technical field
The invention relates to a kind of flat-panel screens, and particularly relevant for a kind of apparatus and method of compensation panel zone nonuniformity.
Background technology
Because rapid development of multimedia, the user is more and more high for the requirement of acousto-optic equipment.Traditional cathode-ray tube (CRT) (Cathode Ray Tube; CRT) display of type because its volume is too huge, is being bragged about in light, thin, short, the little epoch now, does not gradually apply demand.Therefore, there are many flat-panel screens technology to be developed in succession in recent years, as LCD (Liquid Crystal Display; LCD), flat plasma display (Plasma Display Panel; And Field Emission Display (Field Emission Display PDP); FED), become the main flow of following display gradually.
Yet panel processing procedure now also can't guarantee that the diverse location on the same panel all has on all four characteristic sometimes.With the LCD is example, no matter is the liquid crystal filling or the design of module backlight, all may cause the diverse location of its panel to have different optical characteristics, for example brightness or chromatic characteristic etc.This diverse location that is positioned at same panel but has the situation of different optical characteristic, can produce panel and seem the regional uneven defects of vision.
Summary of the invention
Therefore one aspect of the present invention is exactly in the compensation method that a kind of display panel areas unevenness is provided, give the compensation of varying degree to being arranged in same panel pixels in different positions data, and allow the user obtain identical visual experience from each position of panel.
According to a preferred embodiment of the present invention, the method is to define several viewing areas on display panel, and wherein each those viewing area respectively has a panel performance data.Receive a pixel data, and judge this pixel data be corresponding among those viewing areas which.According to the panel characteristics data of this pairing viewing area of pixel data, proofread and correct this pixel data.Pixel data after proofreading and correct is sent to display panel.
The present invention is providing a kind of compensation method of pixel data, compensates according to viewing area, pixel data place, to improve the spatial non-uniformity problem that known display panel is produced when showing same pixel data.
According to another preferred embodiment of the present invention, the method is to receive a pixel data, and judges this pixel data pairing viewing area on display panel.According to the panel characteristics data of the pairing viewing area of pixel data, proofread and correct this pixel data.Pixel data after proofreading and correct is sent to display panel.
Another aspect of the invention is at the compensation system that a kind of display panel areas unevenness is provided, before pixel data is shown, method by software or hardware is compensated it, to improve the display panel that it has different qualities everywhere, so avoids the uneven situation of generation area.
According to another preferred embodiment of the present invention, this device comprises viewing area judging unit, panel characteristics record unit and panel characteristics correcting unit.The viewing area judging unit is that wherein this display panel has several viewing areas in order to judgement pixel data pairing viewing area on display panel.Panel characteristics record unit has the panel characteristics data of those viewing areas.This panel characteristics record unit is to electrically connect the viewing area judging unit, and selects the corresponding panel performance data according to the pairing viewing area of this pixel data.The panel characteristics correcting unit is to electrically connect panel characteristics record unit, and proofreaies and correct this pixel data according to the corresponding panel performance data.
Description of drawings
For allowing above-mentioned and other purposes of the present invention, feature, advantage and embodiment can become apparent appended graphic being described in detail as follows:
Fig. 1 is the method flow diagram that illustrates a preferred embodiment of the present invention;
Fig. 2 is the method flow diagram that illustrates the definition viewing area of this preferred embodiment;
Fig. 3 A is the equipment synoptic diagram that illustrates a preferred embodiment of the present invention; And
Fig. 3 B is the circuit function block diagram that illustrates a preferred embodiment of the present invention.
The main element symbol description
102,104,106,108,110: step
202,204: step
300: compensation system
302: the viewing area judging unit
304: panel characteristics record unit
306: the panel characteristics correcting unit
310: display panel
312: the viewing area
314: optical characteristics measures the unit
Embodiment
The present invention is according to pixel data pairing diverse location in display panel, gives in various degree compensation to this pixel data, can bring the user identical and uniform visual experience in the hope of this display panel.
Fig. 1 is the method flow diagram that illustrates a preferred embodiment of the present invention.The method is to define several viewing areas (step 102) on display panel, and wherein each those viewing area respectively has a panel performance data.Receive a pixel data (step 104), and judge this pixel data is corresponding to which (step 106) among those viewing areas.According to the panel characteristics data of this pairing viewing area of pixel data, proofread and correct this pixel data (step 108).Pixel data after proofreading and correct is sent to display panel (step 110).
This display panel can be the display panel of LCD, flat plasma display or Field Emission Display.And, the viewing area that step 102 defined, its maximum number is the number of pixels that equals display panel, its minimal amount then equals one.That is to say, the size of viewing area, I is equal to the area of single pixel, and is maximum then can be equal to the area of full wafer display panel.
In practical application, should consider at that time hardware and software capability, that is in order to the circuit of correcting pixel data or the processing speed of formula, decide display panel the viewing area number that should define.Many more viewing area numbers mean need be strong more data-handling capacity could in finite time, finish all corrective actions.Moreover when the viewing area number that is defined the size of each viewing area (be more hour) more for a long time, then the effect of this preferred embodiment compensatory zone unevenness is obvious more; Anti-, when the viewing area number that is defined when big more (be the size of each viewing area) more after a little while, then the effect of this preferred embodiment compensatory zone unevenness is more not remarkable.Prior art person selects suitable viewing area number voluntarily when making trade-offs between data-handling capacity and compensation effect.
Fig. 2 is the method flow diagram that illustrates the definition viewing area of this preferred embodiment, to further specify the panel characteristics data that how to obtain each viewing area.Decision viewing area quantity with and partitioning scheme after, in order to obtain the panel characteristics data of each viewing area, can measure the optical characteristics (step 202) of each viewing area.According to the optical characteristics of those viewing areas, set up the panel characteristics data of each viewing area, wherein those panel characteristics data are in order to the display effect (step 204) of unified same pixel data in those viewing areas.
This preferred embodiment is to use chromascope, spectrum analyzer or other optical characteristics that is suitable for to measure the optical characteristics that the unit measures those viewing areas.Optical characteristics then for example comprises brightness (brightness), chroma (saturation) and tone (hue) etc.And, may be corrected and exceed zone of reasonableness for fear of the pixel data of some viewing area, above-mentioned panel characteristics data are to be that benchmark is set up with the mxm. in the optical characteristics of those viewing areas, minimum or other snap points that is fit to.
With the luminance compensation is example, at first notes down the original brightness performance of each viewing area, and for example same pixel data shows at the original brightness of different viewing areas, and calculates the luminance difference of different viewing areas.In the higher viewing area of brightness, the brightness of pixel data that will be corresponding with it deducts the luminance difference of this viewing area; Or in the lower viewing area of brightness, the brightness of pixel data that will be corresponding with it adds the luminance difference of this viewing area, so can obtain uniform brightness performance on same display panel.And, the luminance difference that each viewing area added or deducted, must be that benchmark decides with the mxm. in the optical characteristics of all viewing areas, minimum or other snap points that is fit to, exceed its numerical value limit and can't reach correct compensation effect with the pixel data after preventing to proofread and correct.
More particularly, by this preferred embodiment, display manufacturer can to a collection of or or even each sheet display panel set up its panel characteristics data, and use hardware (as integrated circuit) or software (as driving formula) pixel data to be done compensation according to these panel characteristics data, to improve the regional uneven problem of display panel.Perhaps, display manufacturer also can be attached to this function in the display by hardware (as integrated circuit) or software (as driving formula) equally, for the user when in a single day display produces regional non-uniform phenomenon, module for example backlight wear out or during display Yin Gaore generation characteristic variations because of long-time the use, utilize this additional function to set up its panel characteristics data, the display effect of further proofreading and correct its display voluntarily.
Fig. 3 A is the equipment synoptic diagram that illustrates a preferred embodiment of the present invention, how to use optical characteristics to measure the panel characteristics data that the unit obtains each viewing area in order to explanation.Use optical characteristics to measure the optical characteristics that unit 314 measures each viewing area 312 of display panel 310 respectively.Then, the panel characteristics data of each viewing area 312 can be set up according to the optical characteristics of those viewing areas 312 in panel characteristics record unit 304.Those panel characteristics data are in order to the display effect of unified same pixel data in those different viewing areas 312.
In this preferred embodiment, display panel 310 is to be defined out 12 viewing areas 312.As mentioned above, the number of viewing area 312 is by situation at that time and need decide, and is not limited to shown in this preferred embodiment.Optical characteristics measures unit 314, for example can be chromascope, spectrum analyzer or other optical characteristics that is suitable for and measures the unit.Optical characteristics then for example comprises brightness, chroma and tone etc.Similarly, may be corrected and exceed zone of reasonableness for fear of the pixel data of some viewing area 312, above-mentioned panel characteristics data are to be that benchmark is set up with the mxm. in the optical characteristics of those viewing areas 312, minimum or other snap points that is fit to.
Fig. 3 B is the circuit function block diagram that illustrates a preferred embodiment of the present invention, and following content please refer to Fig. 3 A and Fig. 3 B.This compensation system 300 comprises viewing area judging unit 302, panel characteristics record unit 304 and panel characteristics correcting unit 306.Viewing area judging unit 302 is in order to judge pixel data pairing viewing area 312 on display panel 310.Record has those viewing areas 312 panel characteristics data separately in the panel characteristics record unit 304.This panel characteristics record unit 304 is to electrically connect viewing area judging unit 302, and selects the corresponding panel performance data according to the pairing viewing area 312 of this pixel data.Panel characteristics correcting unit 306 is to electrically connect panel characteristics record unit 304, and proofreaies and correct this pixel data according to the corresponding panel performance data.
As a rule, viewing area judging unit 302, panel characteristics record unit 304 and panel characteristics correcting unit 306 can be circuit, firmware, driving formula or above-mentioned three's combination.For instance, these three unit 302,304 and 306 can be integrated in the interior integrated circuit (IC) wafer of display, and so the user does not need can see the display effect that is compensated through compensation system 300 from display by extra action.Perhaps, these three unit 302,304 and 306 also can be integrated in the driving formula of display card, and so the user can optionally further upgrade or set compensation content wherein to it, improve the use elasticity and the efficient of this compensation system 300.Even, prior art person is when understanding, above-mentioned three unit 302,304 and 306 also might not get and be integrated in simultaneously in single hardware or the single software, in viewable design in the practical application and need do it and suitably disperse or improve in different hardware or software, with the performance of while optimization data processing power and compensation effect.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (14)
1. the compensation method of a display panel areas unevenness comprises at least:
Define several viewing areas on a display panel, wherein each those viewing area has a panel performance data;
Receive a pixel data;
Judge this pixel data be corresponding among those viewing areas which;
According to the panel characteristics data of this pairing viewing area of pixel data, proofread and correct this pixel data; And
According to this pixel data after proofreading and correct, revise this display panel.
2. compensation method as claimed in claim 1, wherein this compensation method more comprises:
Measure the optical characteristics of each those viewing area; And
According to the optical characteristics of those viewing areas, set up the panel characteristics data of each those viewing area, wherein those panel characteristics data are in order to the display effect of unified same pixel data in those viewing areas.
3. compensation method as claimed in claim 2, wherein this compensation method is to use chromascope or spectrum analyzer to measure the optical characteristics of those viewing areas.
4. compensation method as claimed in claim 2, wherein this optical characteristics comprises brightness, chroma and tone.
5. compensation method as claimed in claim 2, wherein those panel characteristics data are to be that benchmark is set up with mxm. in the optical characteristics of those viewing areas or minimum.
6. compensation method as claimed in claim 1, wherein the maximum number of this viewing area is the number of pixels that equals this display panel, and the minimal amount of this viewing area is to equal one.
7. the compensation system of a display panel areas unevenness comprises at least:
One viewing area judging unit, in order to judge a pixel data pairing viewing area on a display panel, wherein this display panel has several viewing areas;
One panel characteristic record unit has the panel characteristics data of those viewing areas, and this panel characteristics record unit is to electrically connect this viewing area judging unit, and selects the panel characteristics data of a correspondence according to the pairing viewing area of this pixel data; And
One panel characteristic correction unit electrically connects this panel characteristics record unit, and according to this corresponding panel performance data, proofreaies and correct this pixel data.
8. compensation system as claimed in claim 7, wherein this panel characteristics correcting unit is to produce a correction data according to this corresponding panel performance data, and proofreaies and correct this pixel data with this correction data.
9. compensation system as claimed in claim 7, wherein the maximum number of this viewing area is the number of pixels that equals this display panel, and the minimal amount of this viewing area is to equal one.
10. compensation system as claimed in claim 7, wherein this compensation system more comprises:
One optical characteristics measures the unit, in order to measure the optical characteristics of each those viewing area, wherein those panel characteristics data are to set up according to the optical characteristics of those viewing areas, and those panel characteristics data are in order to the display effect of unified same pixel data in those viewing areas.
11. compensation system as claimed in claim 10, wherein this optical characteristics measurement unit is to be chromascope or spectrum analyzer.
12. compensation system as claimed in claim 10, wherein this optical characteristics comprises brightness, chroma and tone.
13. compensation system as claimed in claim 10, wherein those panel characteristics data are to be that benchmark is set up with mxm. in the optical characteristics of those viewing areas or minimum.
14. compensation system as claimed in claim 7, wherein this viewing area judging unit, this panel characteristics record unit and this panel characteristics correcting unit are to be integrated in the integrated circuit (IC) wafer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510052834 CN1825421A (en) | 2005-02-25 | 2005-02-25 | Device and method for compensating panel area non-uniformity |
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| CN 200510052834 CN1825421A (en) | 2005-02-25 | 2005-02-25 | Device and method for compensating panel area non-uniformity |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826316B (en) * | 2009-03-02 | 2013-10-09 | 阿尔卡特朗讯 | Method for displaying content on screen of monitor and system |
| CN103606353A (en) * | 2013-11-19 | 2014-02-26 | 四川长虹电器股份有限公司 | Method for enhancing liquid crystal display product brightness uniformity |
| CN106847185A (en) * | 2015-11-11 | 2017-06-13 | 株式会社日本有机雷特显示器 | Display device, the bearing calibration of display device, manufacture method and display methods |
| CN109147657A (en) * | 2017-06-19 | 2019-01-04 | 瑞鼎科技股份有限公司 | Optical compensation device applied to display panel and operation method thereof |
| CN109741717A (en) * | 2019-03-26 | 2019-05-10 | 京东方科技集团股份有限公司 | Pixel compensation method, device, sequence controller, array substrate and display device |
| US10559260B2 (en) | 2017-02-24 | 2020-02-11 | Everdisplay Optronics (Shanghai) Limited | Organic light emitting diode display and mobile terminal |
| WO2020107856A1 (en) * | 2018-11-30 | 2020-06-04 | 北京小米移动软件有限公司 | Screen display method and apparatus |
| WO2020199283A1 (en) * | 2019-03-29 | 2020-10-08 | 上海华岭集成电路技术股份有限公司 | Circular defect testing method for optical chip of integrated circuit |
| GB2590048A (en) * | 2019-03-29 | 2021-06-23 | Sino Ic Tech Co Ltd | Circular defect testing method for optical chip of integrated circuit |
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2005
- 2005-02-25 CN CN 200510052834 patent/CN1825421A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826316B (en) * | 2009-03-02 | 2013-10-09 | 阿尔卡特朗讯 | Method for displaying content on screen of monitor and system |
| CN103606353A (en) * | 2013-11-19 | 2014-02-26 | 四川长虹电器股份有限公司 | Method for enhancing liquid crystal display product brightness uniformity |
| CN106847185A (en) * | 2015-11-11 | 2017-06-13 | 株式会社日本有机雷特显示器 | Display device, the bearing calibration of display device, manufacture method and display methods |
| CN106847185B (en) * | 2015-11-11 | 2020-10-23 | 株式会社日本有机雷特显示器 | Display device, correction method of display device, manufacturing method of display device, and display method |
| US10559260B2 (en) | 2017-02-24 | 2020-02-11 | Everdisplay Optronics (Shanghai) Limited | Organic light emitting diode display and mobile terminal |
| CN109147657A (en) * | 2017-06-19 | 2019-01-04 | 瑞鼎科技股份有限公司 | Optical compensation device applied to display panel and operation method thereof |
| WO2020107856A1 (en) * | 2018-11-30 | 2020-06-04 | 北京小米移动软件有限公司 | Screen display method and apparatus |
| CN111261081A (en) * | 2018-11-30 | 2020-06-09 | 北京小米移动软件有限公司 | Screen display method and device |
| RU2734647C1 (en) * | 2018-11-30 | 2020-10-21 | Бейджин Сяоми Мобайл Софтвэар Ко., Лтд. | Screen display method and screen display device |
| US11062640B2 (en) | 2018-11-30 | 2021-07-13 | Beijing Xiaomi Mobile Software Co., Ltd. | Screen display method and screen display device |
| CN111261081B (en) * | 2018-11-30 | 2021-10-19 | 北京小米移动软件有限公司 | Screen display method and device |
| CN109741717A (en) * | 2019-03-26 | 2019-05-10 | 京东方科技集团股份有限公司 | Pixel compensation method, device, sequence controller, array substrate and display device |
| WO2020199283A1 (en) * | 2019-03-29 | 2020-10-08 | 上海华岭集成电路技术股份有限公司 | Circular defect testing method for optical chip of integrated circuit |
| GB2590048A (en) * | 2019-03-29 | 2021-06-23 | Sino Ic Tech Co Ltd | Circular defect testing method for optical chip of integrated circuit |
| GB2590048B (en) * | 2019-03-29 | 2023-08-30 | Sino Ic Tech Co Ltd | Halo test method for an optical chip in an integrated circuit |
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