CN102194434B - Method for detecting crosstalk between adjacent pixels of display panel - Google Patents

Method for detecting crosstalk between adjacent pixels of display panel Download PDF

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CN102194434B
CN102194434B CN 201010124232 CN201010124232A CN102194434B CN 102194434 B CN102194434 B CN 102194434B CN 201010124232 CN201010124232 CN 201010124232 CN 201010124232 A CN201010124232 A CN 201010124232A CN 102194434 B CN102194434 B CN 102194434B
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display panel
grating
brightness value
crosstalk
adjacent pixels
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CN102194434A (en
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武延兵
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Abstract

The invention relates to a method for detecting crosstalk between adjacent pixels of a display panel. The method comprises the following steps of: arranging an optical grating in front of the display panel, allowing a luminance meter to receive light emitted from even pixels and preventing the luminance meter from receiving the light emitted by odd pixels; measuring overall brightness of the display panel by the luminance meter and recording the overall brightness as a first brightness value when an odd pixel row and an even pixel row simultaneously display black pictures; measuring the overall brightness of the display panel by the luminance meter and recording the overall brightness as a second brightness value when the odd pixel row displays a white picture and the even pixel row displays a black picture at the same time; and recording a third brightness value obtained by subtracting the first brightness value from the second brightness value, and judging amplitude of the crosstalk between the adjacent pixels according to the third brightness value. According to the method, the amplitude of the crosstalk between the adjacent pixels of the display panel can be detected; and the detection method is simple and practical, has no need of complex instruments and the like.

Description

The detection method of display panel crosstalk between adjacent pixels
Technical field
The present invention relates to display technology, relate in particular to the detection method of display panel crosstalk between adjacent pixels.
Background technology
The double vision display technique is the display mode that mode that grid is set in the display panel front realizes observing on different viewing location different images.
Fig. 1 is the display technique schematic diagram of the double-vision display of prior art, as can be seen from Figure 1, the grid 2 that this double-vision display comprises display panel 1 and is arranged on this display panel 1 front, and above-mentioned display panel 1 comprises odd pixel column 11 and even pixel row 12, grid 2 comprises shield bars and slit, and odd pixel column 11 shows the first image, even pixel row 12 show second image different from the first image, the first image gathers left side viewing areas through after grid 2, the second image is through gathering the right viewing areas after grid 2, thereby the beholder watches different demonstration images simultaneously at different viewing areas.
In above-mentioned double-vision display, between neighbor, crosstalk phenomenon can occur, crosstalking between neighbor refers to occur to be coupled by stray capacitance due to neighbor and causes interacting the phenomenon of brightness.above-mentioned crosstalk phenomenon be can not ignore the impact of the visual image of double-vision display, reason is, the odd pixel column of double-vision display and even pixel row show respectively different images, if crosstalk between the neighbor of adjacent pixel column, the object brightness of neighbor all can be affected, can be affected by the first image of even pixel row demonstration and the second image of odd pixel column demonstration like this, in the first image that the beholder watches like this, some second images can appear, same some first images that occur in the second image that the beholder watches.
Crosstalk phenomenon between neighbor not only occurs in double-vision display, also can appear in general display, therefore, the producer is in the process of producing display, need to filter out the little display panel of trying one's best of crosstalking between neighbor from a plurality of display panels, but also not have method can detect degree of crosstalk between neighbor at present.
Summary of the invention
The detection method that the purpose of this invention is to provide a kind of display panel crosstalk between adjacent pixels is with the judgement of the size of crosstalking between the neighbor of realizing display panel.
For achieving the above object, the invention provides a kind of detection method of display panel crosstalk between adjacent pixels, described display panel comprises spaced odd pixel column and even pixel row, wherein, comprising:
In described display panel the place ahead, grating is set, makes the nitometer that is positioned at described display panel and described grating the place ahead accept the light that sends from described even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
When described odd pixel column and even pixel row showed the black picture simultaneously, described nitometer was measured the overall brightness of described display panel, and is recorded as the first brightness value;
When described even pixel row showed the black picture in the time of described odd pixel column display white picture, described nitometer was measured the overall brightness of described display panel, and is recorded as the second brightness value;
Record described the second brightness value and deduct the 3rd brightness value that described the first brightness value obtains, and according to described the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
The present invention also provides a kind of detection method of display panel crosstalk between adjacent pixels, and described display panel comprises spaced odd pixel column and even pixel row, wherein, comprising:
In described display panel the place ahead, grating is set, makes the nitometer that is positioned at described display panel and described grating the place ahead accept the light that sends from described even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
When described odd pixel column and even pixel row while display white picture, described nitometer is measured the overall brightness of described display panel, and is recorded as the first brightness value;
During described even pixel row display white picture, described nitometer is measured the overall brightness of described display panel, and is recorded as the second brightness value when described odd pixel column shows the black picture;
Record described the first brightness value and deduct the 3rd brightness value that described the second brightness value obtains, and according to described the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
By above technical scheme as can be known, the present invention by measure display panel without crosstalk phenomenon the time black picture or white picture brightness value and black picture or the white picture brightness value when crosstalk phenomenon is arranged, obtain difference between two brightness values, and according to the size of crosstalking between this difference judgement neighbor, therefore, can detect the size of crosstalking between the neighbor of display panel by the present invention, and detection method of the present invention is simple, has advantages of to need not to use complex instrument etc.
Description of drawings
Fig. 1 is the display technique schematic diagram of the double-vision display of prior art.
The detection method process flow diagram of the display panel crosstalk between adjacent pixels that Fig. 2 provides for the embodiment of the present invention one.
The grating that uses in the detection method of the display panel crosstalk between adjacent pixels that Fig. 3 provides for the embodiment of the present invention one and the arrangenent diagram of nitometer.
The detection method process flow diagram of the display panel crosstalk between adjacent pixels that Fig. 4 provides for the embodiment of the present invention two.
In figure:
1-display panel 2-grid
11-odd pixel column 12-even pixel row
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment one
The present embodiment provides a kind of detection method of display panel crosstalk between adjacent pixels, this display panel comprises spaced odd pixel column and even pixel row, the detection method process flow diagram of degree of crosstalk between the display panel neighbor that Fig. 2 provides for the embodiment of the present invention one, as can be seen from Figure 2, the detection method of this display panel crosstalk between adjacent pixels comprises:
Step 100, in display panel the place ahead, grating is set, makes the nitometer that is positioned at display panel and grating the place ahead accept the light that sends from the even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
Step 200, when odd pixel column and even pixel row show the black picture simultaneously, nitometer is measured the overall brightness of display panel, and is recorded as the first brightness value;
Step 300, when even pixel row show the black picture in the time of odd pixel column display white picture, nitometer is measured the overall brightness of display panel, and is recorded as the second brightness value;
Step 400, record the second brightness value deduct the 3rd brightness value that the first brightness value obtains, and according to the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
The detection method of degree of crosstalk between the neighbor of the present embodiment, the brightness value of the black picture brightness value when measuring without crosstalk phenomenon and the black picture when crosstalk phenomenon is arranged, and judge the size of crosstalking according to the difference of two brightness values, therefore, by above-mentioned detection method, can detect the size of crosstalking between the neighbor of display panel, and the detection method of the present embodiment is simple, has advantages of to need not to use complex instrument etc.
Above-mentioned steps 100 specifically comprises:
A pixel wide of display panel is made as slit width that distance that distance that distance between p, two neighbors is made as q, display panel and grating is made as h, nitometer and grating is made as L, grating is made as the shield bars of b, grating and the width sum of slit is that grating pitch is made as a;
Grating is set, the grating pitch of grating in display panel the place ahead a = ( p + q ) ( L - h ) L , And the width of shield bars ( a - b ) ≥ ( L - h ) L × p . The width of above-mentioned shield bars is preferably ( a - b ) = ( L - h ) L × p . The grating that uses in the detection method of the display panel crosstalk between adjacent pixels that Fig. 3 provides for the embodiment of the present invention one and the arrangenent diagram of nitometer, arranging of above-mentioned parameters can be with reference to Fig. 3.
Above-mentioned steps 400 specifically comprises: when the 3rd brightness value during less than default crossfire value, determine between neighbor crosstalk little; When the 3rd brightness value during greater than default crossfire value, determine between neighbor crosstalking large.
Embodiment two
The present embodiment provides a kind of detection method of display panel crosstalk between adjacent pixels, and this display panel comprises spaced odd pixel column.The detection method process flow diagram of the display panel crosstalk between adjacent pixels that Fig. 4 provides for the embodiment of the present invention two, as can be seen from Figure 4, the detection method of this display panel crosstalk between adjacent pixels comprises:
Step 101, in display panel the place ahead, grating is set, makes the nitometer that is positioned at display panel and grating the place ahead accept the light that sends from the even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
Step 201, when odd pixel column and even pixel row simultaneously during the display white picture, nitometer is measured the overall brightness of display panel, and is recorded as the first brightness value;
Step 301, when odd pixel column shows the black picture during even pixel row display white picture, nitometer is measured the overall brightness of display panel, and is recorded as the second brightness value;
Step 401, record the first brightness value deduct the 3rd brightness value that the second brightness value obtains, and according to the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
The detection method of degree of crosstalk between the neighbor of the present embodiment, the brightness value of the white picture brightness value when measuring without crosstalk phenomenon and the white picture when crosstalk phenomenon is arranged, and judge the size of crosstalking according to the difference of two brightness values, therefore, by above-mentioned detection method, can detect the size of crosstalking between the neighbor of display panel, and the detection method of the present embodiment is simple, has advantages of to need not to use complex instrument etc.
Above-mentioned steps 101 specifically comprises:
A pixel wide of display panel is made as slit width that distance that distance that distance between p, two neighbors is made as q, display panel and grating is made as h, nitometer and grating is made as L, grating is made as the shield bars of b, grating and the width sum of slit is that grating pitch is made as a;
Grating is set, the grating pitch of grating in display panel the place ahead a = ( p + q ) ( L - h ) L , And the width of shield bars ( a - b ) ≥ ( L - h ) L × p . The width of above-mentioned shield bars is preferably ( a - b ) = ( L - h ) L × p . Arranging of above-mentioned parameters can be with reference to Fig. 3.
Above-mentioned steps 401 comprises: when described the 3rd brightness value during less than default crossfire value, determine between neighbor crosstalk little; When described the 3rd brightness value during greater than described default crossfire value, determine between neighbor crosstalking large.
In the present invention, be not confined to liquid crystal panel is divided into odd pixel column and even pixel row, can be divided into odd pixel row and even pixel row yet.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (8)

1. the detection method of a display panel crosstalk between adjacent pixels, described display panel comprises spaced odd pixel column, it is characterized in that, comprising:
In described display panel the place ahead, grating is set, makes the nitometer that is positioned at described display panel and described grating the place ahead accept the light that sends from the even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
When described odd pixel column and even pixel row showed the black picture simultaneously, described nitometer was measured the overall brightness of described display panel, and is recorded as the first brightness value;
When described even pixel row showed the black picture in the time of described odd pixel column display white picture, described nitometer was measured the overall brightness of described display panel, and is recorded as the second brightness value;
Record described the second brightness value and deduct the 3rd brightness value that described the first brightness value obtains, and according to described the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
2. the detection method of display panel crosstalk between adjacent pixels according to claim 1, is characterized in that, the described step that grating is set in display panel the place ahead comprises:
A pixel wide of described display panel is made as slit width that distance that distance that distance between p, two neighbors is made as q, described display panel and described grating is made as h, described nitometer and described grating is made as L, described grating is made as the shield bars of b, described grating and the width sum of slit is that grating pitch is made as a;
Grating is set, the grating pitch of described grating in described display panel the place ahead
Figure FSB00001014050000011
And the width of described shield bars
Figure FSB00001014050000012
3. the detection method of display panel crosstalk between adjacent pixels according to claim 2, is characterized in that, the width of described shield bars
4. the detection method of display panel crosstalk between adjacent pixels according to claim 1, is characterized in that, and is described according to the 3rd brightness value, and the step of the size of the described crosstalk between adjacent pixels of judgement comprises:
When described the 3rd brightness value during less than default crossfire value, determine between neighbor crosstalk little;
When described the 3rd brightness value during greater than described default crossfire value, determine between neighbor crosstalking large.
5. the detection method of a display panel crosstalk between adjacent pixels, described display panel comprises spaced odd pixel column, it is characterized in that, comprising:
In described display panel the place ahead, grating is set, makes the nitometer that is positioned at described display panel and described grating the place ahead accept the light that sends from the even pixel row, make simultaneously described nitometer can't accept the light that sends from described odd pixel column;
When described odd pixel column and even pixel row while display white picture, described nitometer is measured the overall brightness of described display panel, and is recorded as the first brightness value;
During described even pixel row display white picture, described nitometer is measured the overall brightness of described display panel, and is recorded as the second brightness value when described odd pixel column shows the black picture;
Record described the first brightness value and deduct the 3rd brightness value that described the second brightness value obtains, and according to described the 3rd brightness value, the size of judgement crosstalk between adjacent pixels.
6. the detection method of display panel crosstalk between adjacent pixels according to claim 5, is characterized in that, the described step that grating is set in display panel the place ahead comprises:
A pixel wide of described display panel is made as slit width that distance that distance that distance between p, two neighbors is made as q, described display panel and described grating is made as h, described nitometer and described grating is made as L, described grating is made as the shield bars of b, described grating and the width sum of slit is that grating pitch is made as a;
Grating is set, the grating pitch of described grating in described display panel the place ahead
Figure FSB00001014050000021
And the width of described shield bars
Figure FSB00001014050000022
7. the detection method of display panel crosstalk between adjacent pixels according to claim 6, is characterized in that, the width of described shield bars
Figure FSB00001014050000031
8. the detection method of display panel crosstalk between adjacent pixels according to claim 5, is characterized in that, and is described according to the 3rd brightness value, and the step of the size of the described crosstalk between adjacent pixels of judgement comprises:
When described the 3rd brightness value during less than default crossfire value, determine between neighbor crosstalk little;
When described the 3rd brightness value during greater than described default crossfire value, determine between neighbor crosstalking large.
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CN102419938B (en) * 2011-12-26 2014-03-26 Tcl集团股份有限公司 Implementation method for Alignment system for micro phase compensation plate and liquid crystal display (LCD)
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