CN102455541A - Method and equipment for calibrating display device - Google Patents
Method and equipment for calibrating display device Download PDFInfo
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- CN102455541A CN102455541A CN201010512131XA CN201010512131A CN102455541A CN 102455541 A CN102455541 A CN 102455541A CN 201010512131X A CN201010512131X A CN 201010512131XA CN 201010512131 A CN201010512131 A CN 201010512131A CN 102455541 A CN102455541 A CN 102455541A
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Abstract
The invention provides a method and equipment for calibrating a display device. The method comprises the following steps of: in a display unit, displaying a first color by a pixel corresponding to a first image, and displaying a second color by a pixel corresponding to a second image; polarizing and filtering the first color and the second color by a polarizer to form initial polarized light; performing polarization modulation on the initial polarized light by a polarization modulation device to emit first polarized light and second polarized light, wherein the polarization direction of the first polarized light is orthogonal with the polarization direction of the second polarized light; monitoring the first polarized light and the second polarized light by a polaroid; and adjusting relative positions of the polarization modulation device and the display unit until the colors monitored by the polaroid are the first color. By the method and the equipment, the polarization modulation device and the display unit in the display device can be aligned with each other precisely; and the method and the equipment are simple and easy, and are high in precision.
Description
Technical field
The present invention relates to a kind of display device calibration steps and correcting device, belong to stereo display and double vision display technique field.
Background technology
Thereby stereo display technique is a kind of right and left eyes that makes same beholder to be observed different images respectively and produces relief technology.The double vision display technique is a kind of technology that makes different beholders on same display device, see different images.The realization principle of these two kinds of technology is similar; All use display device and the prestowage polaroid glasses that to play different images; Difference is: the left eyeglass lens of used polaroid glasses and right eye eyeglass have the different polarization direction respectively in the stereo display technique, thereby thereby make same beholder's right and left eyes observe different images generation stereoscopic sensation respectively; And the left eyeglass lens and the identical polarization direction of right eye eyeglass tool of the used polaroid glasses of double vision display technique, and different beholders' polaroid glasses have different polarization directions, thus make different beholders on same display device, see different images.In addition, the structure of the used display device of these two kinds of technology is basic identical.
As shown in Figure 1, existing display device comprises display unit 10, Polarizer 20 and polarisation modulation device 30.Wherein, the one part of pixel of display unit 10 shows first image (shown in the left diagonal line hatches part among the figure), and another part pixel shows second image (shown in the right diagonal line hatches part among the figure).The light of these images becomes after through Polarizer 20 and has the polarized light that the polarization direction is parallel paper direction (being shown as two parallel lines among the figure); Polarisation modulation device 30 among Fig. 1 is shown as liquid crystal cell, adjusts the polarization direction of polarized light through reversing of liquid crystal molecule.As shown in Figure 1; The polarization direction that comes from the polarized light of Polarizer 20 is parallel paper direction; After the direction adjustment through polarisation modulation device 30; The polarization direction of the polarized light of first image is rotated and is vertical paper direction (being shown as two round dots among the figure), and the polarization direction of the polarized light of second image still remains parallel paper direction.
Fig. 2 has shown the fundamental diagram when the polarisation modulation device 30 in the existing display device is polarizer; As shown in the figure; Polarizer has carried out the phase delay of λ/2 to first image, makes the polarization direction half-twist of the polarized light of first image, and second image has been carried out the zero phase delay; The polarization direction of the polarized light of second image is remained unchanged, thereby reached and the similar polarisation modulation function of liquid crystal cell.
This shows; In order to reach required display effect, polarisation modulation device 30 must with display unit 10 accurate contrapositions, particularly; When using liquid crystal cell to carry out the polarisation modulation, need make the control liquid crystal reverses in the liquid crystal cell strip shaped electric poles and the accurate contraposition of respective pixel on the display unit 10; When using polarizer to carry out the polarisation modulation, need make strip phase delay area and the accurate contraposition of respective pixel on the display unit 10 on the polarizer.In case the contraposition deviation has taken place, the crosstalking of meaning of first image and second image will appear, influence display quality.But existing polarisation modulation device 30 almost is transparent, therefore is difficult to the accurate contraposition of realization and display unit 10.
Summary of the invention
The present invention provides a kind of display device calibration steps and correcting device, in order to realize the accurate contraposition of polarisation modulation device and display unit.
One aspect of the present invention provides a kind of display device calibration steps, and this display device comprises display unit, Polarizer and the polarisation modulation device that sequential cascade is provided with, and wherein said method comprises:
Pixel corresponding with first image in the said display unit shows first color, and the pixel corresponding with second image shows second color;
By said Polarizer the light of said first color and second color is carried out polarizing filter, form initial polarized light;
By said polarisation modulation device said initial polarized light is carried out the polarisation modulation, send first polarized light and second polarized light, the polarization direction quadrature of said first polarized light and said second polarized light;
See through polaroid and monitor said first polarized light and said second polarized light, the polarization direction of wherein said polaroid is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light;
Adjust the relative position of said polarisation modulation device and said display unit, be said first color up to the color that monitors through said polaroid.
The present invention provides a kind of display device correcting device on the other hand, and this display device comprises display unit, Polarizer and the polarisation modulation device that sequential cascade is provided with, and wherein said equipment comprises:
Indicative control unit; Be used for controlling the said display unit pixel corresponding with first image and show first color, the pixel corresponding with second image shows second color, makes by said Polarizer the light of said first color and second color to be carried out polarizing filter; Form initial polarized light; And by said polarisation modulation device said initial polarized light is carried out polarisation and modulate, send first polarized light and second polarized light, the polarization direction quadrature of said first polarized light and said second polarized light;
The polarisation monitoring means is used for seeing through polaroid and monitors said first polarized light and said second polarized light, and the polarization direction of wherein said polaroid is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light;
Position adjustment unit is used to adjust the relative position of said polarisation modulation device and said display unit, sees through the color that said polaroid monitors up to said polarisation monitoring means and is said first color.
The present invention has realized polarisation modulation device and the accurate contraposition of display unit in the display device, and is simple and precision is high.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 has shown the fundamental diagram when the polarisation modulation device 30 in the existing display device is liquid crystal cell;
Fig. 2 has shown the fundamental diagram when the polarisation modulation device 30 in the existing display device is polarizer;
Fig. 3 is the process flow diagram of display device calibration steps embodiment according to the invention;
Fig. 4 is the principle key diagram for example of display device calibration steps according to the invention;
Fig. 5 is the structural representation of display device correcting device according to the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 3 is a display device calibration steps embodiment process flow diagram according to the invention, and in the present embodiment, said display device comprises display unit, Polarizer and the polarisation modulation device that sequential cascade is provided with, and wherein said method comprises the steps:
Wherein, First image and second image are two width of cloth images that are used to realize stereo display and double vision demonstration; In the present embodiment; For display device is calibrated, make the corresponding pixel of first image show first color to replace first image, the pixel corresponding with second image shows that second color is to replace second image.
Particularly, said first color is a black, and second color is a white; Perhaps, said first color is a white, and second color is a black.
The light that is sent by display unit does not have single polarization direction, after the polarizing filter of Polarizer is handled, becomes the initial polarized light with single polarization direction.
Particularly; When said polarisation modulation device can be for polarizer; Can carry out phase delay respectively to part corresponding in the said initial polarized light by the strip phase delay area on the said polarizer, thereby send said first polarized light and said second polarized light with said first color and said second color; When said polarisation modulation device is liquid crystal cell; Strip shaped electric poles on the said liquid crystal cell powers up; The liquid crystal molecule that drives in the said initial polarized light with said first color and the said second color counterpart carries out corresponding reversing, thereby sends said first polarized light and said second polarized light.
Wherein, said polaroid can have identical polarization direction for first polaroid and second polaroid of polaroid glasses, and this polarization direction is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light.
Particularly, can see through polaroid by human eye and watch said first polarized light and said second polarized light; Perhaps (Charge-coupled Device is called for short: CCD) wait electrooptical device to see through polaroid and monitor said first polarized light and said second polarized light by charge coupled cell.Specifically can see through polaroid and directly monitor corresponding light intensity of the first polarization light wavelength and the corresponding light intensity of the second polarization light wavelength by electrooptical device.
Because the precision during the ratio of precision eye-observation when adopting electrooptical device to detect is higher, therefore more help guaranteeing the accuracy of calibrating, to improve the effect of accurate contraposition.
Wherein, Because the polarization direction of polaroid is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light, therefore; First polaroid and second polarized light all can make first polarized light pass and arrive human eye, and stop that second polarized light passes.
Wherein, When human eye sees through first polaroid of polaroid glasses and color that second polaroid is watched and is said first color; When perhaps seeing through said polaroid and detect the corresponding light intensity of the second polarization light wavelength and be zero by said electrooptical device; Show that then part corresponding with first color in the initial polarized light all is modulated to first polarized light by the polarisation modulation device and monitors; And the part corresponding with second color all is modulated to second polarized light by polarisation modulation device 30 and is not monitored in the initial polarized light; Promptly be the best relative position of polarisation modulation device and display unit this time, thereby realized the accurate contraposition of polarisation modulation device and display unit.After this, display unit 10, Polarizer 20 and 30 of polarisation modulation devices are carried out the calibration process that stationkeeping has promptly been accomplished display device.
The said method of present embodiment has realized polarisation modulation device and the accurate contraposition of display unit in the display device, and is simple and precision is high.
Below illustrate the principle of work of the said method of present embodiment through Fig. 4.As shown in Figure 4, pixel corresponding with first image in the display unit 10 shows black, the pixel show white corresponding with second image; The polarization direction of the initial polarized light that after the polarizing filter of Polarizer 20 is handled, obtains is the right tilted direction shown in the figure; The polarization direction of first polarized light that after 30 pairs of initial polarized lights of polarisation modulation device carry out polarisation modulation, obtains still is right tilted direction, and the polarization direction of second polarized light that obtains becomes left tilted direction; Shown in the polarization direction of first polaroid and second polaroid of polaroid glasses 40 identical; Be right tilted direction; The relative position of adjustment polarisation modulation device 30 and display unit 10; Be black up to seeing through the color that polaroid monitors, show that then polarisation modulation device 30 and display unit 10 realized accurate contraposition.
Need to prove that here first color is chosen as white, and second color is chosen as black, when the color that monitors through polaroid is white, also can realize the accurate contraposition of polarisation modulation device 30 and display unit 10.But because human eye is higher than human eye susceptibility to black under white environment far away at the susceptibility to white under the black environment; First color is chosen as black; Second color is chosen as white and more helps the accuracy that guarantees that the beholder judges, to improve the effect of accurate contraposition.
Fig. 5 is the structural representation of display device correcting device according to the invention; The display device that will be calibrated display unit 10, Polarizer 20 and the polarisation modulation device 30 that comprises that sequential cascade is provided with as shown in Figure 1; As shown in Figure 5; This display device correcting device 50 comprises: indicative control unit 51, polarisation monitoring means 52 and position adjustment unit 53, and its principle of work is following:
Show first color by the pixel corresponding with first image in the said display unit 10 of 51 controls of the indicative control unit in the display device correcting device 50 earlier, the pixel corresponding with second image shows second color.Wherein, First image and second image are two width of cloth images that are used to realize stereo display and double vision demonstration; In the present embodiment; For display device is calibrated, make the corresponding pixel of first image show first color to replace first image, the pixel corresponding with second image shows that second color is to replace second image.Particularly, said first color is a black, and second color is a white; Perhaps, said first color is a white, and second color is a black.
After this, the Polarizer 20 in the display device can carry out polarizing filter to the light of said first color and second color, forms initial polarized light; Then, polarisation modulation device 30 can carry out the polarisation modulation to said initial polarized light, sends first polarized light and second polarized light, the polarization direction quadrature of said first polarized light and said second polarized light.Wherein, polarisation modulation device 30 can be polarizer or liquid crystal cell.
Then; See through polaroid by the polarisation monitoring means in the display device correcting device 50 52 and monitor said first polarized light and said second polarized light; Wherein, this polaroid for example can be first polarized light and second polarized light of polaroid glasses 40, and first polaroid and second polaroid of wherein said polaroid glasses 40 have identical polarization direction; This polarization direction is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light.Said polarisation monitoring means 52 specifically can be electrooptical device, like CCD etc., is used for seeing through said polaroid glasses 40 said first polarized light of monitoring and said second polarized lights, and concrete mode can be referring to the related description of said method embodiment.Because the precision during the ratio of precision eye-observation when adopting electrooptical device to detect is higher, therefore more help guaranteeing the accuracy of calibrating, to improve the effect of accurate contraposition.
Next, by the relative position of the said polarisation modulation device 30 of 53 adjustment of the position adjustment unit in the display device correcting device 50, be said first color through the color that polaroid monitors up to said polarisation monitoring means 52 with said display unit 10.
Particularly; When seeing through color that said polaroid monitors and be said first color; Show that then part corresponding with first color in the initial polarized light all is modulated to first polarized light by polarisation modulation device 30 and monitors; And the part corresponding with second color all is modulated to second polarized light by the polarisation modulation device and is not monitored in the initial polarized light; Promptly be the best relative position of polarisation modulation device and display unit this time, thereby realized the accurate contraposition of polarisation modulation device 30 with display unit 10.After this, display unit 10, Polarizer 20 and polarisation modulation device 30 are carried out the calibration process that stationkeeping has promptly been accomplished display device.
The said equipment of present embodiment has been realized polarisation modulation device and the accurate contraposition of display unit in the display device, and is simple and precision is high.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (8)
1. display device calibration steps, this display device comprise display unit, Polarizer and the polarisation modulation device that sequential cascade is provided with, and it is characterized in that said method comprises:
Pixel corresponding with first image in the said display unit shows first color, and the pixel corresponding with second image shows second color;
By said Polarizer the light of said first color and second color is carried out polarizing filter, form initial polarized light;
By said polarisation modulation device said initial polarized light is carried out the polarisation modulation, send first polarized light and second polarized light, the polarization direction quadrature of said first polarized light and said second polarized light;
See through polaroid and monitor said first polarized light and said second polarized light, the polarization direction of wherein said polaroid is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light;
Adjust the relative position of said polarisation modulation device and said display unit, be said first color up to the color that monitors through said polaroid.
2. method according to claim 1; It is characterized in that said polarisation modulation device is a polarizer; Saidly by said polarisation modulation device said initial polarized light is carried out polarisation modulation and comprise: by the strip phase delay area on the said polarizer part corresponding with said first color and said second color in the said initial polarized light is carried out phase delay respectively, thereby send said first polarized light and said second polarized light.
3. method according to claim 1; It is characterized in that said polarisation modulation device is a liquid crystal cell; Saidly by said polarisation modulation device said initial polarized light is carried out polarisation modulation and comprise: the strip shaped electric poles on the said liquid crystal cell powers up; The liquid crystal molecule that drives in the said initial polarized light with said first color and the said second color counterpart carries out corresponding reversing, thereby sends said first polarized light and said second polarized light.
4. method according to claim 1 is characterized in that said first color is a black, and said second color is a white.
5. method according to claim 1 is characterized in that said first color is white, and said second color is a black.
6. method according to claim 1 is characterized in that saidly seeing through color that said polaroid monitors and being said first color and comprising: seeing through said polaroid by electrooptical device, to detect the corresponding light intensity of the second polarization light wavelength is zero.
7. display device correcting device, this display device comprise display unit, Polarizer and the polarisation modulation device that sequential cascade is provided with, and it is characterized in that said equipment comprises:
Indicative control unit; Be used for controlling the said display unit pixel corresponding with first image and show first color, the pixel corresponding with second image shows second color, makes by said Polarizer the light of said first color and second color to be carried out polarizing filter; Form initial polarized light; And by said polarisation modulation device said initial polarized light is carried out polarisation and modulate, send first polarized light and second polarized light, the polarization direction quadrature of said first polarized light and said second polarized light;
The polarisation monitoring means is used for seeing through polaroid and monitors said first polarized light and said second polarized light, and the polarization direction of wherein said polaroid is identical with the polarization direction of said first polarized light, with the polarization direction quadrature of said second polarized light;
Position adjustment unit is used to adjust the relative position of said polarisation modulation device and said display unit, sees through the color that said polaroid monitors up to said polarisation monitoring means and is said first color.
8. equipment according to claim 7, its characteristic is an electrooptical device at said polarisation monitoring means, is used for seeing through said polaroid and monitors said first polarized light and said second polarized light.
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| CN201010512131.XA CN102455541B (en) | 2010-10-14 | 2010-10-14 | Method and equipment for calibrating display device |
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| CN201010512131.XA CN102455541B (en) | 2010-10-14 | 2010-10-14 | Method and equipment for calibrating display device |
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| CN102455541B CN102455541B (en) | 2015-06-17 |
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Cited By (2)
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| CN106199989A (en) * | 2016-09-26 | 2016-12-07 | 京东方科技集团股份有限公司 | 3D membrane phase alignment device and method |
| CN110012283A (en) * | 2019-04-16 | 2019-07-12 | 京东方科技集团股份有限公司 | A kind of adjustment method and debugging system of 3 d display |
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| CN101359099A (en) * | 2008-09-23 | 2009-02-04 | 友达光电股份有限公司 | Solid display, manufacturing method thereof and control method |
| CN101581842A (en) * | 2008-05-16 | 2009-11-18 | 财团法人工业技术研究院 | Automatic alignment system for stereoscopic liquid crystal display and method thereof |
| CN101604071A (en) * | 2008-06-12 | 2009-12-16 | 乐金显示有限公司 | 3 d image display and alignment system thereof and alignment methods |
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- 2010-10-14 CN CN201010512131.XA patent/CN102455541B/en not_active Expired - Fee Related
Patent Citations (4)
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| WO2007083925A1 (en) * | 2006-01-20 | 2007-07-26 | Master Image Co., Ltd. | Apparatus and method for attaching display panel for stereoscopic image |
| CN101581842A (en) * | 2008-05-16 | 2009-11-18 | 财团法人工业技术研究院 | Automatic alignment system for stereoscopic liquid crystal display and method thereof |
| CN101604071A (en) * | 2008-06-12 | 2009-12-16 | 乐金显示有限公司 | 3 d image display and alignment system thereof and alignment methods |
| CN101359099A (en) * | 2008-09-23 | 2009-02-04 | 友达光电股份有限公司 | Solid display, manufacturing method thereof and control method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106199989A (en) * | 2016-09-26 | 2016-12-07 | 京东方科技集团股份有限公司 | 3D membrane phase alignment device and method |
| CN106199989B (en) * | 2016-09-26 | 2019-11-22 | 京东方科技集团股份有限公司 | 3D membrane phase alignment device and method |
| CN110012283A (en) * | 2019-04-16 | 2019-07-12 | 京东方科技集团股份有限公司 | A kind of adjustment method and debugging system of 3 d display |
| CN110012283B (en) * | 2019-04-16 | 2021-03-23 | 京东方科技集团股份有限公司 | Debugging method and debugging system of three-dimensional display panel |
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