CN100365698C - Regulation method of panel flash - Google Patents
Regulation method of panel flash Download PDFInfo
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- CN100365698C CN100365698C CNB2005101368971A CN200510136897A CN100365698C CN 100365698 C CN100365698 C CN 100365698C CN B2005101368971 A CNB2005101368971 A CN B2005101368971A CN 200510136897 A CN200510136897 A CN 200510136897A CN 100365698 C CN100365698 C CN 100365698C
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Abstract
The present invention relates to a method for regulating the flicker of a panel, which comprises the following steps: firstly, providing a display; secondly, providing first voltage for the display; thirdly, controlling the display to display a detection pattern, wherein the detection pattern comprises a first detection area and a second detection area, the patterns in the first detection area and the second detection area are respectively used for detecting displays with different pixel inversion types, and the display subtracts basic voltage of the first voltage to generate positive voltage and applies the positive voltage to pixels in the first detection area and the second detection area; finally, switching the first voltage to second voltage, and observing whether the detection patterns have flickers.
Description
Technical field
The present invention relates to a kind of regulation method of panel flash, particularly a kind of by changing the panel method of adjustment that check pattern improves panel flash adjustment efficient.
Background technology
In lcd technology, opposite polarity electric field can put on the liquid crystal layer repeatedly, to prevent the liquid crystal molecule in the liquid crystal layer phenomenon of polarization takes place.With reference to Fig. 1 a, it is the synoptic diagram of display dot pixel inversion pattern display 10, point pixel inversion pattern display 10 comprises a plurality of first pixels 11 and a plurality of second pixel 12, wherein, these first pixels 11 are to arrange in mode spaced apart with these second pixels 12, and the electric polarity that is applied to these first pixels 11 is in contrast to the electric field that is applied to these second pixels 12.Below be example with these first pixels, the mechanism that electric polarity changes is described.When display frame, this pixel inversion pattern display 10 is that one first voltage is deducted a basic voltage and produces a cathode voltage, and this cathode voltage is put on these first pixels 11.Then, with reference to Fig. 1 b, again one second voltage is deducted this basic voltage and produces a cathode voltage, and this cathode voltage is put on these first pixels 11, by this to prevent the liquid crystal molecule generation polarization phenomena in the liquid crystal layer.
When the size of this basic voltage is set when correct, the absolute value of this cathode voltage equals the absolute value of this cathode voltage, and therefore in the process of polar switching, the electric field level that puts on liquid crystal molecule equates, cause the anglec of rotation of liquid crystal molecule constant, the situation that does not therefore have film flicker takes place.
Yet when the size of this basic voltage was set the generation deviation, the absolute value of this cathode voltage will be different from the absolute value of this cathode voltage, promptly, the electric field level that puts on liquid crystal molecule can change, and therefore the situation (that is the situation that brightness light and shade, changes) of film flicker can take place.
Fig. 2 shows 2 pixel inversion pattern displays 20, comprise a plurality of first pixels 21 and a plurality of second pixel 22, its characteristics are, these first pixels 21 and these second pixels 22 are to arrange in separately mode in twos, and the electric polarity that puts on these first pixels 21 is in contrast to the electric field that puts on these second pixels 22.The display of other counter-rotating pattern also has picture counter-rotating pattern display, row counter-rotating pattern display and row counter-rotating pattern display or the like.
With reference to Fig. 3 a, in order to proofread and correct basic voltage to eliminate the situation of film flicker, prior art applies this first voltage to this pixel inversion pattern display 10, and control this pixel inversion pattern display 10 and show one first check pattern, promptly, control these first pixels 11 and show a color (for example, green).Then, this first voltage is switched to this second voltage, and detect the situation whether this first check pattern has film flicker with naked eyes.
Same, with reference to Fig. 3 b, when desire is proofreaied and correct 2 pixel inversion pattern displays 20, prior art applies this first voltage to these 2 pixel inversion pattern displays 20, and control this 2 pixel inversion pattern displays 20 and show one second check pattern, that is, control these first pixels 21 and show a color (for example, green).Then, this first voltage is switched to this second voltage, and detect the situation whether this second check pattern has film flicker with naked eyes.
At displays such as picture counter-rotating pattern display, row counter-rotating pattern display and row counter-rotating pattern displays, corresponding check pattern has been arranged also at present.
Yet, when the testing staff detects display with the check pattern of mistake, can detect the situation of failure.With reference to Fig. 3 c, when this pixel inversion pattern display 10 shows this second check pattern, contiguous first pixel 11 and second pixel 12 will provide demonstration simultaneously, this moment, cathode voltage put on first pixel 11, cathode voltage is added on second pixel 12, even the absolute value of cathode voltage and cathode voltage is different, the difference of its brightness will be neutralized, therefore when applying field inversion, its flicker situation will be not obvious, and the testing staff will thereby can't observe out basic voltage and not set the suitable fact.
The check pattern that same problem also can occur in mistake detects on the displays such as 2 pixel inversion pattern displays, picture counter-rotating pattern display, row counter-rotating pattern display and row counter-rotating pattern display.For example, with reference to Fig. 3 d, when this pixel inversion pattern display 20 shows this first check pattern, approaching first pixel 11 and second pixel 12 also can provide demonstration simultaneously, though first pixel 11 of Show Color and 12 distances that are separated with a pixel of second pixel, but because distance is too little, the difference of its brightness still can be neutralized, therefore when applying field inversion, its flicker situation will be not obvious, and the testing staff will thereby can't observe out basic voltage and not set the suitable fact.
Summary of the invention
The present invention promptly solves above-mentioned prior art problems for desire, and a kind of regulation method of panel flash that provides comprises the steps.At first, provide a display.Then, provide one first voltage to this display.Again, control this display and show a check pattern, wherein, this check pattern comprises one first surveyed area and one second surveyed area, the pattern of this first surveyed area and this second surveyed area is respectively applied for the display that detects different pixels counter-rotating pattern, this display deducts this first voltage one basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area and this second surveyed area.At last, this first voltage is switched to one second voltage, and observe the situation generation whether this check pattern has flicker.
Use the present invention, can effectively reduce the chance that panel flash detects failure, effectively improve the situation of panel flash, improve the yield rate of product.
Description of drawings
Fig. 1 a shows first voltage is put on a synoptic diagram of the situation of pixel inversion pattern display;
Fig. 1 b shows second voltage is put on a synoptic diagram of the situation of pixel inversion pattern display;
Fig. 2 is the synoptic diagram that shows 2 pixel inversion pattern displays;
Fig. 3 a is the situation that display dot pixel inversion pattern display shows first pattern;
Fig. 3 b shows that 2 pixel inversion pattern displays show the situation of second pattern;
Fig. 3 c is the situation that display dot pixel inversion pattern display shows second pattern;
Fig. 3 d shows that 2 pixel inversion pattern displays show the situation of first pattern;
Fig. 4 and Fig. 5 show check pattern of the present invention.
The reference numeral explanation
10～pixel inversion pattern display;
11～the first pixels;
12～the second pixels;
20～two pixel inversion pattern displays;
21～the first pixels;
22～the second pixels;
100,100 '～check pattern;
111～the first surveyed areas;
112～the 3rd surveyed areas;
121～the second surveyed areas;
122～the 4th surveyed areas;
130～the 5th surveyed areas.
Embodiment
With reference to Fig. 4, it is to show check pattern 100 of the present invention, and it comprises first surveyed area 111, second surveyed area 121, the 3rd surveyed area 112 and the 5th surveyed area 130.First surveyed area 111 is positioned at the central authorities of check pattern 100.Second surveyed area 121 is positioned at the both sides of first surveyed area 111.The width of first surveyed area 111 is greater than the width of second surveyed area 121.The pattern of first surveyed area 111 is different from the pattern of second surveyed area 121, that is, this first surveyed area 111 is respectively applied for the display that detects different pixels counter-rotating pattern with the pattern of this second surveyed area 121.For example, when this first surveyed area 111 is used for check point pixel inversion pattern display, 121 displays that can be used for detecting 2 pixel inversion pattern displays or other pattern of this second surveyed area.
This first surveyed area 111 can be changed collocation arbitrarily with the display pattern that this second surveyed area 121 is detected, and can be used for check point pixel inversion pattern display, 2 displays such as pixel inversion pattern display, picture counter-rotating pattern display, row counter-rotating pattern display and row counter-rotating pattern display.Its collocation mode is to determine according to the display pattern of producing on the production line.
Among the embodiment in Fig. 4, first surveyed area 111 is main surveyed area, and second surveyed area 121 is the fool proof surveyed area.For example, (example when check pattern 100 is mainly used in check point pixel inversion pattern display, this first surveyed area 111 is used for check point pixel inversion pattern display, and this second surveyed area 121 is used to detect 2 pixel inversion pattern displays), even controlling 2 pixel inversion pattern displays, the testing staff shows that this check pattern 100 is to detect, the situation of obvious film flicker also can take place in second surveyed area 121 when voltage switches, therefore, the testing staff can find that still basic voltage do not set the suitable fact.
The 3rd surveyed area 112 is between the edge of this second surveyed area 121 and this check pattern 100, and the detectable pixel inversion pattern of the pattern of the 3rd surveyed area 112 is same as this first surveyed area 111.
The 5th surveyed area 130 is positioned at the upper and lower sides edge of this check pattern 100, and shows grey.The step of regulation method of panel flash of the present invention below is described.At first, provide a display.Then, provide one first voltage, and control this display and show a check pattern this display.Wherein, this check pattern comprises this first surveyed area, this second surveyed area, the 3rd surveyed area and the 5th surveyed area, this display deducts this first voltage one basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area, this second surveyed area, the 3rd surveyed area and the 5th surveyed area.Again, this first voltage is switched to one second voltage, and observe the situation generation whether this check pattern has flicker.At last, adjust this basic voltage to improve the flicker situation.
Wherein, when providing this second voltage to this display, this display deducts this second voltage this basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area, this second surveyed area, the 3rd surveyed area and the 5th surveyed area.
With reference to Fig. 5, it is to show check pattern 100 ' of the present invention, and check pattern 100 ' is to define for the description of simplifying claim, its structure and check pattern 100 and indifference.Check pattern 100 ' comprises first surveyed area 111, second surveyed area 121, the 4th surveyed area 122 and the 5th surveyed area 130.Second surveyed area 121 is positioned at the central authorities of this check pattern 100.First surveyed area 111 is positioned at the both sides of second surveyed area 121.The width of second surveyed area 121 is greater than the width of first surveyed area 111.The pattern of first surveyed area 111 and second surveyed area 121 is respectively applied for the display that detects different pixels counter-rotating pattern.
The display pattern that first surveyed area 111 and second surveyed area 121 are detected can be changed collocation arbitrarily, can be used for check point pixel inversion pattern display, 2 displays such as pixel inversion pattern display, picture counter-rotating pattern display, row counter-rotating pattern display and row counter-rotating pattern display.The 4th surveyed area 122 is between the edge of first surveyed area 111 and check pattern 100, and the 4th surveyed area 122 detectable pixel inversion patterns are same as second surveyed area 121.
Use the present invention, can effectively reduce the chance that panel flash detects failure, effectively improve the situation of panel flash, improve the yield rate of product.
Though the present invention discloses as above with concrete preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; still can do a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (27)
1. regulation method of panel flash comprises:
One display is provided;
Provide one first voltage to this display;
Control this display and show a check pattern, wherein, this check pattern comprises one first surveyed area and one second surveyed area, the pattern of this first surveyed area and this second surveyed area is respectively applied for the display that detects different pixels counter-rotating pattern, this display deducts this first voltage one basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area and this second surveyed area;
This first voltage is switched to one second voltage, and observe the situation generation whether this check pattern has flicker; And
Adjust this basic voltage and improve the flicker situation.
2. regulation method of panel flash as claimed in claim 1, wherein, this first surveyed area is used to detect picture counter-rotating pattern display.
3. regulation method of panel flash as claimed in claim 2, wherein, this second surveyed area is used for detecting row counter-rotating pattern display.
4. regulation method of panel flash as claimed in claim 2, wherein, this second surveyed area is used to detect row counter-rotating pattern display.
5. regulation method of panel flash as claimed in claim 2, wherein, this second surveyed area is used for check point pixel inversion pattern display.
6. regulation method of panel flash as claimed in claim 2, wherein, this second surveyed area is used to detect 2 pixel inversion pattern displays.
7. regulation method of panel flash as claimed in claim 1, wherein, this first surveyed area is used for detecting row counter-rotating pattern display.
8. regulation method of panel flash as claimed in claim 7, wherein, this second surveyed area is used to detect row counter-rotating pattern display.
9. regulation method of panel flash as claimed in claim 7, wherein, this second surveyed area is used for check point pixel inversion pattern display.
10. regulation method of panel flash as claimed in claim 7, wherein, this second surveyed area is used to detect 2 pixel inversion pattern displays.
11. regulation method of panel flash as claimed in claim 1, wherein, this first surveyed area is used to detect row counter-rotating pattern display.
12. regulation method of panel flash as claimed in claim 11, wherein, this second surveyed area is used for check point pixel inversion pattern display.
13. regulation method of panel flash as claimed in claim 11, wherein, this second surveyed area is used to detect 2 pixel inversion pattern displays.
14. regulation method of panel flash as claimed in claim 1, wherein, this first surveyed area is used for check point counter-rotating pattern display.
15. regulation method of panel flash as claimed in claim 14, wherein, this second surveyed area is used to detect 2 pixel inversion pattern displays.
16. regulation method of panel flash as claimed in claim 1, wherein, when providing this second voltage to this display, this display deducts this second voltage this basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area and this second surveyed area.
17. regulation method of panel flash as claimed in claim 1, wherein, this first surveyed area is positioned at the central authorities of this check pattern.
18. regulation method of panel flash as claimed in claim 17, wherein, this second surveyed area is positioned at the both sides of this first surveyed area.
19. regulation method of panel flash as claimed in claim 18, wherein, the width of this first surveyed area is greater than the width of this second surveyed area.
20. regulation method of panel flash as claimed in claim 18, wherein, this check pattern more comprises one the 3rd surveyed area, between the edge of this second surveyed area and this check pattern, the detectable pixel inversion pattern of the 3rd surveyed area is same as this first surveyed area, when this display deducted a basic voltage with this first voltage and produces a cathode voltage, this display put on this cathode voltage on the pixel in the 3rd surveyed area.
21., regulation method of panel flash as claimed in claim 20, wherein, when providing this second voltage to this display, this display deducts this second voltage this basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area, this second surveyed area and the 3rd surveyed area.
22. regulation method of panel flash as claimed in claim 1, wherein, this second surveyed area is positioned at the central authorities of this check pattern.
23. regulation method of panel flash as claimed in claim 22, wherein, this first surveyed area is positioned at the both sides of this second surveyed area.
24. regulation method of panel flash as claimed in claim 23, wherein, the width of this second surveyed area is greater than the width of this first surveyed area.
25. regulation method of panel flash as claimed in claim 23, wherein, this check pattern more comprises one the 4th surveyed area, between the edge of this first surveyed area and this check pattern, the detectable pixel inversion pattern of the 4th surveyed area is same as this second surveyed area, when this display deducted a basic voltage with this first voltage and produces a cathode voltage, this display put on this cathode voltage on the pixel in the 4th surveyed area.
26. regulation method of panel flash as claimed in claim 25, wherein, when providing this second voltage to this display, this display deducts this second voltage this basic voltage and produces a cathode voltage, and this cathode voltage is put on the pixel in this first surveyed area, this second surveyed area and the 4th surveyed area.
27. regulation method of panel flash as claimed in claim 1, wherein, this check pattern more comprises one the 5th surveyed area, and the 5th surveyed area is positioned at the upper and lower sides edge of this check pattern, and shows grey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101368971A CN100365698C (en) | 2005-12-27 | 2005-12-27 | Regulation method of panel flash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101368971A CN100365698C (en) | 2005-12-27 | 2005-12-27 | Regulation method of panel flash |
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| CN1794338A CN1794338A (en) | 2006-06-28 |
| CN100365698C true CN100365698C (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101368971A Expired - Fee Related CN100365698C (en) | 2005-12-27 | 2005-12-27 | Regulation method of panel flash |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739993B (en) * | 2010-01-04 | 2012-06-27 | 青岛海信电器股份有限公司 | Method and device for adjusting reference voltage of public electrode |
| CN102479478B (en) * | 2010-11-24 | 2014-10-29 | 群创光电股份有限公司 | Apparatus having flicker pattern and method for operating the same |
| CN107966840B (en) * | 2017-12-20 | 2020-08-25 | 苏州华兴源创科技股份有限公司 | Method for detecting defective pixel points of liquid crystal panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103978A (en) * | 1993-07-13 | 1995-06-21 | 夏普公司 | A checking apparatus for flat type display panels |
| JPH08152601A (en) * | 1994-09-26 | 1996-06-11 | Canon Inc | Driving method of display element and display device |
| CN1519560A (en) * | 2003-01-24 | 2004-08-11 | 牧德科技股份有限公司 | Methos and system for detecting faceplate of liquid crystal display |
-
2005
- 2005-12-27 CN CNB2005101368971A patent/CN100365698C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103978A (en) * | 1993-07-13 | 1995-06-21 | 夏普公司 | A checking apparatus for flat type display panels |
| JPH08152601A (en) * | 1994-09-26 | 1996-06-11 | Canon Inc | Driving method of display element and display device |
| CN1519560A (en) * | 2003-01-24 | 2004-08-11 | 牧德科技股份有限公司 | Methos and system for detecting faceplate of liquid crystal display |
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| CN1794338A (en) | 2006-06-28 |
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