CN102455541B - Method and equipment for calibrating display device - Google Patents
Method and equipment for calibrating display device Download PDFInfo
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- CN102455541B CN102455541B CN201010512131.XA CN201010512131A CN102455541B CN 102455541 B CN102455541 B CN 102455541B CN 201010512131 A CN201010512131 A CN 201010512131A CN 102455541 B CN102455541 B CN 102455541B
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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
Stereo display technique a kind ofly makes the right and left eyes of same beholder observe different images respectively thus produce relief technology.Double vision display technique is a kind of technology making different beholder see different images in same display device.These two kinds of technology realize principle comparing class seemingly, all use the display device and prestowage polaroid glasses that can play different images, difference is: left eyeglass lens and the right eye eyeglass of polaroid glasses used in stereo display technique have different polarization direction respectively, thus makes the right and left eyes of same beholder observe different images respectively thus produce stereoscopic sensation; And the polarization direction that the left eyeglass lens of double vision display technique polaroid glasses used is identical with right eye eyeglass tool, and the polaroid glasses of different beholder have different polarization directions, thus make different beholder see different images in same display device.In addition, the structure of the display device that these two kinds of technology are used is substantially 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 the first image (as shown in the left diagonal line hatches part in figure), and another part pixel shows the second image (as shown in the right diagonal line hatches part in figure).The light of these images has by becoming after Polarizer 20 polarized light that polarization direction is parallel paper direction (being shown as two parallel lines in figure); Polarisation modulation device 30 in Fig. 1 is shown as liquid crystal cell, is adjusted the polarization direction of polarized light by the torsion of liquid crystal molecule.As shown in Figure 1, the polarization direction coming from the polarized light of Polarizer 20 is parallel paper direction, after the adjustment of the direction of polarisation modulation device 30, the polarization direction of the polarized light of the first image is rotated to be vertical paper direction (being shown as two round dot in figure), and the polarization direction of the polarized light of the second image still remains parallel paper direction.
Fundamental diagram when Fig. 2 polarisation modulation device 30 shown in existing display device is polarizer, as shown in the figure, polarizer has carried out the phase delay of λ/2 to the first image, make the polarization direction half-twist of the polarized light of the first image, and zero phase delay has been carried out to the second image, the polarization direction of the polarized light of the second image is remained unchanged, thus reaches the polarisation modulation function similar with liquid crystal cell.
As can be seen here, in order to reach required display effect, polarisation modulation device 30 must with display unit 10 exactitude position, particularly, when using liquid crystal cell to carry out polarisation modulation, need the respective pixel exactitude position on the strip shaped electric poles that makes to control liquid crystal torsion in liquid crystal cell and display unit 10; When using polarizer to carry out polarisation modulation, need to make the strip phase delay area on polarizer and the respective pixel exactitude position on display unit 10.Once there occurs contraposition deviation, just there will be the crosstalk of the meaning of the first image and the second image, affect display quality.But existing polarisation modulation device 30 is almost transparent, be therefore difficult to realize the exactitude position with display unit 10.
Summary of the invention
The invention provides a kind of display device calibration steps and correcting device, in order to realize the exactitude position 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 the order display unit of stacked setting, Polarizer and polarisation modulation device, and wherein said method comprises:
Pixel corresponding with the first image in described display unit shows the first color, and the pixel corresponding with the second image shows the second color;
Carry out polarizing filter by the light of described Polarizer to described first color and the second color, form initial polarization light;
Carry out polarisation modulation by described polarisation modulation device to described initial polarization light, send the first polarized light and the second polarized light, described first polarized light is orthogonal with the polarization direction of described second polarized light;
Through polaroid described first polarized light of monitoring and described second polarized light, the polarization direction of wherein said polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light;
Adjust the relative position of described polarisation modulation device and described display unit, until the color monitored through described polaroid is described first color.
The present invention on the other hand provides a kind of display device correcting device, and this display device comprises the display unit of the stacked setting of order, Polarizer and polarisation modulation device, and wherein said equipment comprises:
Indicative control unit, the first color is shown for controlling pixel corresponding with the first image in described display unit, the pixel corresponding with the second image shows the second color, make to carry out polarizing filter by the light of described Polarizer to described first color and the second color, form initial polarization light, and by described polarisation modulation device, polarisation modulation is carried out to described initial polarization light, send the first polarized light and the second polarized light, described first polarized light is orthogonal with the polarization direction of described second polarized light;
Polarisation monitoring means, for monitoring described first polarized light and described second polarized light through polaroid, the polarization direction of wherein said polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light;
Position adjustment unit, for adjusting the relative position of described polarisation modulation device and described display unit, until described polarisation monitoring means is described first color through the color that described polaroid monitors.
Present invention achieves the exactitude position of polarisation modulation device in display device and display unit, simple and precision is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fundamental diagram when Fig. 1 polarisation modulation device 30 shown in existing display device is liquid crystal cell;
Fundamental diagram when Fig. 2 polarisation modulation device 30 shown in existing display device is polarizer;
Fig. 3 is the process flow diagram of display device calibration steps embodiment of the present invention;
Fig. 4 is the citing principle key diagram of display device calibration steps of the present invention;
Fig. 5 is the structural representation of display device correcting device of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 3 is display device calibration steps embodiment process flow diagram of the present invention, and in the present embodiment, described display device comprises the order display unit of stacked setting, Polarizer and polarisation modulation device, and wherein said method comprises the steps:
Step 101, pixel corresponding with the first image in display unit shows the first color, and the pixel corresponding with the second image shows the second color.
Wherein, first image and the second image are the two width images shown for realizing stereo display and double vision, in the present embodiment, in order to calibrate display device, make pixel corresponding to the first image show the first color to replace the first image, the pixel corresponding with the second image shows the second color to replace the second image.
Particularly, described first color is black, and the second color is white; Or described first color is white, and the second color is black.
Step 102, carries out polarizing filter by the light of described Polarizer to described first color and the second color, forms initial polarization light.
The light sent by display unit does not have single polarization direction, after the polarizing filter process of Polarizer, becomes the initial polarization light with single polarization direction.
Step 103, carries out polarisation modulation by described polarisation modulation device to described initial polarization light, sends the first polarized light and the second polarized light, and described first polarized light is orthogonal with the polarization direction of described second polarized light.
Particularly, when described polarisation modulation device can be polarizer, phase delay can be carried out by the strip phase delay area on described polarizer respectively to the part of answering with described first color and described second Color pair in described initial polarization light, thus send described first polarized light and described second polarized light; When described polarisation modulation device is liquid crystal cell, strip shaped electric poles on described liquid crystal cell is powered up, drive in described initial polarization light and carry out corresponding torsion to the liquid crystal molecule of described first color and described second color corresponding part, thus send described first polarized light and described second polarized light.
Step 104, through polaroid described first polarized light of monitoring and described second polarized light, the polarization direction of wherein said polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light.
Wherein, described polaroid can be the first polaroid and second polaroid of polaroid glasses, has identical polarization direction, and this polarization direction is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light.
Particularly, described first polarized light and described second polarized light can be watched by human eye through polaroid; CCD) etc. or (Charge-coupled Device is called for short: electrooptical device is through polaroid described first polarized light of monitoring and described second polarized light by charge coupled cell.Specifically can directly monitor light intensity corresponding to the wavelength of light intensity corresponding to the wavelength of the first polarized light and the second polarized light by electrooptical device through polaroid.
Due to adopt electrooptical device detect time ratio of precision eye-observation time precision higher, be therefore more conducive to ensure calibration accuracy, to improve the effect of exactitude position.
Wherein, because the polarization direction of polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light, therefore, first polaroid and the second polarized light all can make the first polarized light pass and arrive human eye, and stop that the second polarized light passes.
Step 105, adjusts the relative position of described polarisation modulation device and described display unit, until the color monitored through described polaroid is described first color.
Wherein, when human eye is described first color through the color that the first polaroid and second polaroid of polaroid glasses is watched, or when detecting that the light intensity that the wavelength of the second polarized light is corresponding is zero by described electrooptical device through described polaroid, then show that the part of answering with the first Color pair in initial polarization light is all modulated to the first polarized light by polarisation modulation device and monitors, and the part of answering with the second Color pair in initial polarization light is all modulated to the second polarized light by polarisation modulation device 30 and is not monitored to, namely this time is the best relative position of polarisation modulation device and display unit, thus achieve the exactitude position realizing polarisation modulation device and display unit.After this, display unit 10, Polarizer 20 and polarisation modulation device 30 are carried out position and fix the calibration process namely completing display device.
Method described in the present embodiment achieves the exactitude position of polarisation modulation device in display device and display unit, simple and precision is high.
The principle of work of method described in the present embodiment is illustrated below by way of Fig. 4.As shown in Figure 4, pixel corresponding with the first image in display unit 10 shows black, the pixel display white corresponding with the second image; The initial polarization polarisation of light direction obtained after the polarizing filter process of Polarizer 20 is the right tilted direction shown in figure; The polarization direction of the first polarized light obtained after polarisation modulation device 30 pairs of initial polarization light carry out polarisation modulation is still right tilted direction, and the polarization direction of the second polarized light obtained becomes left tilted direction; Shown in the polarization direction of the first polaroid of polaroid glasses 40 and the second polaroid identical, be right tilted direction, the relative position of adjustment polarisation modulation device 30 and display unit 10, until the color monitored through polaroid is black, then show that polarisation modulation device 30 and display unit 10 achieve exactitude position.
It should be noted that, be white by the first color selecting, the second color selecting is black herein, when the color monitored through polaroid is white, also can realize the exactitude position of polarisation modulation device 30 and display unit 10.But because human eye under black environment to the susceptibility of white far away higher than human eye susceptibility to black under white ambient, be black by the first color selecting, second color selecting is the accuracy that white is more conducive to ensureing that beholder judges, to improve the effect of exactitude position.
Fig. 5 is the structural representation of display device correcting device of the present invention, the display device that will be calibrated comprises the order display unit 10 of stacked setting, Polarizer 20 and polarisation modulation device 30 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 as follows:
First controlling the pixel corresponding with the first image in described display unit 10 by the indicative control unit 51 in display device correcting device 50 shows the first color, and the pixel corresponding with the second image shows the second color.Wherein, first image and the second image are the two width images shown for realizing stereo display and double vision, in the present embodiment, in order to calibrate display device, make pixel corresponding to the first image show the first color to replace the first image, the pixel corresponding with the second image shows the second color to replace the second image.Particularly, described first color is black, and the second color is white; Or described first color is white, and the second color is black.
After this, the Polarizer 20 in display device can carry out polarizing filter to the light of described first color and the second color, forms initial polarization light; Then, polarisation modulation device 30 can carry out polarisation modulation to described initial polarization light, and send the first polarized light and the second polarized light, described first polarized light is orthogonal with the polarization direction of described second polarized light.Wherein, polarisation modulation device 30 can be polarizer or liquid crystal cell.
Then, described first polarized light and described second polarized light is monitored through polaroid by the polarisation monitoring means 52 in display device correcting device 50, wherein, this polaroid can be such as the first polarized light and second polarized light of polaroid glasses 40, 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 described first polarized light, orthogonal with the polarization direction of described second polarized light.Described polarisation monitoring means 52 is specifically as follows electrooptical device, and as CCD etc., for monitoring described first polarized light and described second polarized light through described polaroid glasses 40, concrete mode can see the related description of said method embodiment.Due to adopt electrooptical device detect time ratio of precision eye-observation time precision higher, be therefore more conducive to ensure calibration accuracy, to improve the effect of exactitude position.
Next, the relative position of described polarisation modulation device 30 and described display unit 10 is adjusted by the position adjustment unit 53 in display device correcting device 50, until described polarisation monitoring means 52 is described first color through the color that polaroid monitors.
Particularly, when the color monitored through described polaroid is described first color, then show that the part of answering with the first Color pair in initial polarization light is all modulated to the first polarized light by polarisation modulation device 30 and monitors, and the part of answering with the second Color pair in initial polarization light is all modulated to the second polarized light by polarisation modulation device and is not monitored to, namely this time is the best relative position of polarisation modulation device and display unit, thus achieves the exactitude position realizing polarisation modulation device 30 and display unit 10.After this, display unit 10, Polarizer 20 and polarisation modulation device 30 is carried out position and fix the calibration process namely completing display device.
Equipment described in the present embodiment achieves the exactitude position of polarisation modulation device in display device and display unit, simple and precision is high.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a display device calibration steps, this display device comprises the order display unit of stacked setting, Polarizer and polarisation modulation device, it is characterized in that described method comprises:
Pixel corresponding with the first image in described display unit shows the first color, and the pixel corresponding with the second image shows the second color;
Carry out polarizing filter by the light of described Polarizer to described first color and the second color, form initial polarization light;
Carry out polarisation modulation by described polarisation modulation device to described initial polarization light, send the first polarized light and the second polarized light, described first polarized light is orthogonal with the polarization direction of described second polarized light;
Through polaroid described first polarized light of monitoring and described second polarized light, the polarization direction of wherein said polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light;
Adjust the relative position of described polarisation modulation device and described display unit, until the color monitored through described polaroid is described first color.
2. method according to claim 1, it is characterized in that described polarisation modulation device is polarizer, described by described polarisation modulation device to described initial polarization light carry out polarisation modulate comprise: by the strip phase delay area on described polarizer, respectively phase delay is carried out to the part of answering with described first color and described second Color pair in described initial polarization light, thus sends described first polarized light and described second polarized light.
3. method according to claim 1, it is characterized in that described polarisation modulation device is liquid crystal cell, described by described polarisation modulation device to described initial polarization light carry out polarisation modulate comprise: the strip shaped electric poles on described liquid crystal cell is powered up, drive in described initial polarization light and carry out corresponding torsion to the liquid crystal molecule of described first color and described second color corresponding part, thus send described first polarized light and described second polarized light.
4. method according to claim 1, is characterized in that described first color is black, and described second color is white.
5. method according to claim 1, it is characterized in that described first color is for white, described second color is black.
6. method according to claim 1, the color monitored through described polaroid described in it is characterized in that is described first color and comprises: detect that the light intensity that the wavelength of the second polarized light is corresponding is zero by electrooptical device through described polaroid.
7. a display device correcting device, this display device comprises the order display unit of stacked setting, Polarizer and polarisation modulation device, it is characterized in that described equipment comprises:
Indicative control unit, the first color is shown for controlling pixel corresponding with the first image in described display unit, the pixel corresponding with the second image shows the second color, make to carry out polarizing filter by the light of described Polarizer to described first color and the second color, form initial polarization light, and by described polarisation modulation device, polarisation modulation is carried out to described initial polarization light, send the first polarized light and the second polarized light, described first polarized light is orthogonal with the polarization direction of described second polarized light;
Polarisation monitoring means, for monitoring described first polarized light and described second polarized light through polaroid, the polarization direction of wherein said polaroid is identical with the polarization direction of described first polarized light, orthogonal with the polarization direction of described second polarized light;
Position adjustment unit, for adjusting the relative position of described polarisation modulation device and described display unit, until described polarisation monitoring means is described first color through the color that described polaroid monitors.
8. equipment according to claim 7, its feature is electrooptical device at described polarisation monitoring means, for monitoring described first polarized light and described second polarized light through described polaroid.
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| 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 |
| 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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| 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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| 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 |
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