CN102682685B - Crosstalk reduction method of double-vision display and double-vision display - Google Patents
Crosstalk reduction method of double-vision display and double-vision display Download PDFInfo
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- CN102682685B CN102682685B CN201110127516.9A CN201110127516A CN102682685B CN 102682685 B CN102682685 B CN 102682685B CN 201110127516 A CN201110127516 A CN 201110127516A CN 102682685 B CN102682685 B CN 102682685B
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Abstract
The embodiment of the invention discloses a crosstalk reduction method of a double-vision display and the double-vision display, and belongs to the technical field of the double-vision displaying. The display quality influence caused by the crosstalk phenomenon between the adjacent sub-pixels of the existing the double-vision display is reduced. The crosstalk reduction method of the double-vision display comprises the steps of: obtaining the original voltage corresponding to the gray scale to be displayed; obtaining the compensating voltage of the original voltage; overlapping the original voltage and the compensating voltage to obtain the compensated voltage; and applying the compensated voltage onto the pixel electrodes of the sub-pixels. The double-vision display comprises an original voltage input circuit and a compensating voltage input circuit, wherein the original voltage input circuit is used for applying the original voltage corresponding to the gray scale to be displayed onto the pixel electrodes of the sub-pixels, the compensating voltage input circuit is used for obtaining the compensating voltage, and the compensating voltage is overlapped with the original voltage to be applied to the pixel electrodes. The crosstalk reduction method and the double-vision display are applied to the crosstalk influence reduction in the double-vision display.
Description
Technical field
The invention belongs to double vision display technique field, be specifically related to a kind of crosstalk reduction method and double-vision display of double-vision display.
Background technology
Double-vision display can show two images simultaneously, respectively from left vision area and the viewing of right vision area of double-vision display.Parallax baffle method is a kind of common technology realizing double vision, and a grating as shown in Figure 1, is placed on the front of display unit by its structure, makes beholder can only see display unit by the slit of grating.When structure and the location-appropriate of grating and display unit, just double vision effect can be realized.Concrete principle is: the beholder of left vision area, by slit, can only see a part of sub-pixel on display unit; And the beholder of right vision area is by slit, another part sub-pixel only had on display unit seen.This two parts sub-pixel inputs different picture signals respectively, and beholder just can watch two different images from left vision area and right vision area, also just achieves the effect of double vision; And two parts sub-pixel can be seen by the picture crosstalk district of centre, the namely vision-mix of two images, so do not belong to effective viewing areas.
For Twisted Nematic LCD, as shown in Figure 2, each sub-pixel comprises the public electrode of an input common signal to the electrode structure of sub-pixel, and the pixel electrode of an input picture element signal, forms an electric capacity.Voltage between these two electrodes will determine the deflection situation of liquid crystal molecule therebetween, and finally affect transmittance, and being embodied in visual effect is exactly demonstrate different gray scales.But the pixel electrode of the pixel electrode of sub-pixel A and sub-pixel B also will inevitably form an electric capacity, the voltage on these two pixel electrodes can influence each other, produce deviation, makes respective gray scale also occur deviation, namely crosstalk phenomenon.
The impact of crosstalk in general display is also little, because each sub-pixel is all at the same image of display, adjacent sub-pixel has continuity on the color and gray scale of image, so the impact of crosstalk can be ignored.But in double-vision display, two adjacent sub-pixel displays be two different images, so crosstalk can produce a very large impact image, cause the interference images seeing another image on an image, affect display quality.
Summary of the invention
Embodiments provide a kind of crosstalk reduction method and double-vision display of double-vision display, reduce the impact of crosstalk phenomenon on display quality.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The crosstalk reduction method of this double-vision display, comprising: obtain the primary voltage corresponding with the gray scale for showing; Obtain the bucking voltage of described primary voltage; Described primary voltage and described bucking voltage are superposed, obtains voltage after compensating; Voltage after described compensation is applied on the pixel electrode of sub-pixel.
This double-vision display, comprises primary voltage input circuit and bucking voltage input circuit, and wherein said primary voltage input circuit is for obtaining the primary voltage corresponding with the gray scale for showing; Described bucking voltage input circuit is connected between described primary voltage input circuit and described pixel electrode, for obtaining the bucking voltage of described primary voltage, and described primary voltage and described bucking voltage are superposed, obtain voltage after compensating, then voltage after described compensation is applied on the pixel electrode of sub-pixel.
Compared with prior art, technique scheme tool provided by the present invention has the following advantages: due to the impact of crosstalk phenomenon, primary voltage can produce deviation, and the effect of bucking voltage is exactly compensate this part of deviation, reduce the impact of crosstalk on primary voltage, also reduce the deviation of display gray scale on sub-pixel, improve display quality, so solve existing double-vision display due to the crosstalk phenomenon between adjacent subpixels, cause the affected technical matters of display quality.
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 only 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.
Fig. 1 is the principle schematic of double-vision display;
Fig. 2 is the electrode structure schematic diagram of double-vision display;
The computing method schematic diagram of the side bucking voltage that Fig. 3 provides for embodiments of the invention 1;
The computing method schematic diagram of the side bucking voltage that Fig. 4 provides for embodiments of the invention 2;
A kind of embodiment schematic diagram of the double-vision display that Fig. 5 provides for embodiments of the invention;
The another kind of embodiment schematic diagram of the double-vision display that Fig. 6 provides for embodiments of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
Embodiments provide a kind of crosstalk reduction method and double-vision display of double-vision display.
Embodiment 1:
As shown in Figure 3, the crosstalk reduction method of the double-vision display that the embodiment of the present invention provides, comprising:
S1: obtain the primary voltage corresponding with the gray scale for showing;
S2: the bucking voltage obtaining primary voltage;
S3: superpose primary voltage and bucking voltage, obtains voltage after compensating;
S4: voltage after compensation is applied on the pixel electrode of sub-pixel.
Due to the impact of crosstalk phenomenon, primary voltage can produce deviation, and the effect of bucking voltage is exactly compensate this part of deviation, reduce the impact of crosstalk on primary voltage, also reduce the deviation of display gray scale on sub-pixel, improve display quality, so solve existing double-vision display due to the crosstalk phenomenon between adjacent subpixels, cause the affected technical matters of display quality.
Further, in the embodiment of the present invention, bucking voltage is two side bucking voltage sums; Two side bucking voltages, the crosstalk that the interference voltage being respectively used to compensate this pixel electrode left side and the right produces.Because in double-vision display, the sub-pixel of left vision area and right vision area is alternately, so except the pixel electrode on both sides, the crosstalk that most pixel electrode is subject to is from the right and left, so bucking voltage is also made up of two side bucking voltages, be respectively used to compensate the crosstalk from the right and left.
Further, in the embodiment of the present invention, interference voltage is the primary voltage on the pixel electrode on this pixel electrode left side or the right.Interference voltage should be this pixel electrode left side or the right pixel electrode on the actual voltage applied, namely primary voltage and bucking voltage sum.In fact, bucking voltage is much smaller compared to virtual voltage, so in order to simplify calculating, ignore bucking voltage, and only using the primary voltage of interference source as interference voltage.
Further, in the embodiment of the present invention, the numerical value of side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side.The numerical value of side bucking voltage depends on the departure that the interference voltage of this side causes primary voltage, and this departure is determined by two factors: one is the size of primary voltage itself, and two is sizes of the interference voltage of this side.The difference of these two voltages and proportionate relationship determine the size of departure, so the numerical value of side bucking voltage also draws according to the size of these two voltages.
Further, in the embodiment of the present invention, the numerical value of side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, is specially:
S11: the first image showing certain gray scale in the left vision area of double-vision display, the primary voltage Va corresponding with this gray scale is applied on the pixel electrode of the sub-pixel of left vision area, show the second image of another gray scale in right vision area, apply the primary voltage Vb corresponding with this another gray scale on the pixel electrode of the sub-pixel of right vision area;
S12: the gray scale measuring the display of left vision area, regulates Va, until the gray scale of left vision area reaches normal simultaneously;
S13: now Va is adjusted to Va ', then the side bucking voltage that bucking voltage is Va '-Va=2Vab, Vab when be the interference voltage of primary voltage Va in side being Vb.
Using Va as primary voltage, Vb, as interference voltage, reaches normal gray scale when Va is adjusted to Va ', namely compensate for the impact of crosstalk.Va ' be now left vision area pixel electrode on actual apply voltage, namely primary voltage and bucking voltage sum, so bucking voltage is Va '-Va.Because the interference voltage from the right and left that the pixel electrode of left vision area is subject to is all Vb, so 1/2nd of bucking voltage, the side bucking voltage that namely Vab is exactly the interference voltage of primary voltage Va in side when being Vb.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, and its difference is: as shown in Figure 4, and in the present embodiment, the numerical value of side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, is specially:
S21: the first image showing certain gray scale in the right vision area of double-vision display, the primary voltage Va corresponding with this gray scale is applied on the pixel electrode of the sub-pixel of right vision area, show the second image of another gray scale in left vision area, apply the primary voltage Vb corresponding with this another gray scale on the pixel electrode of the sub-pixel of left vision area;
S22: the gray scale measuring the display of right vision area, regulates Va, until the gray scale of right vision area reaches normal simultaneously;
S23: now Va is adjusted to Va ', then the side bucking voltage that bucking voltage is Va '-Va=2Vab, Vab when be the interference voltage of primary voltage Va in side being Vb.
In the present embodiment, be equivalent to the left vision area in embodiment 1 and right vision area transposition.In practical operation, both left vision area can be measured right vision area as interference source, and also right vision area can be measured left vision area as interference source, select easy mode as the case may be.
Embodiment 3:
The present embodiment is substantially the same manner as Example 1, its difference is: in the present embodiment, the numerical value of side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, be specially: the numerical value of side bucking voltage is from the null balance voltmeter of pre-prepd side, and the interference voltage according to the primary voltage on this pixel electrode and this pixel electrode side is chosen.
Sub-pixel can show how many kinds of gray scale, and namely the exponent number of GTG is fixing, and to there being the value identical multiple not of the same race of primary voltage, normally 64 kinds or 256 kinds.Utilize the computing method of Vab in embodiment 1 and embodiment 2, all n kind values of Va and all n kind value of Vb can be calculated, n × n Vab under all combined situation, and form side null balance voltmeter, as following table.
If the primary voltage on adjacent two pixel electrodes is equal, then can not crosstalk mutually, so the side bucking voltage (such as V11, V22) in the null balance voltmeter of side on diagonal line is zero; Because adjacent two pixel electrodes are mutual crosstalks, so about two of diagonal line symmetry side bucking voltages opposite number (such as V12=-V21) each other in the null balance voltmeter of side.Therefore, in fact calculative side bucking voltage is not n
2individual, and compare n
2half also to lack.
The numerical value of side bucking voltage according to primary voltage and interference voltage, directly can be chosen, utilizes addition to be compensated voltage from the null balance voltmeter of pre-prepd side, thus saves the time in the process applying bucking voltage.
Embodiment 4:
As shown in Figure 5, the double-vision display that the embodiment of the present invention provides, comprises primary voltage input circuit 1 and bucking voltage input circuit 2, and wherein primary voltage input circuit 1 is for obtaining the primary voltage corresponding with the gray scale for showing; Bucking voltage input circuit 2 is connected between primary voltage input circuit 1 and pixel electrode 3, for obtaining the bucking voltage of primary voltage, and primary voltage and bucking voltage are superposed, obtain voltage after compensating, then voltage after compensation is applied on the pixel electrode 3 of sub-pixel.
Due to the impact of crosstalk phenomenon, the primary voltage be applied on pixel electrode 3 by primary voltage input circuit 1 can produce deviation, and the effect of bucking voltage input circuit 2 is exactly apply bucking voltage on the basis of primary voltage, compensate this part of deviation, reduce the impact of crosstalk on primary voltage, also reduce the deviation of display gray scale on sub-pixel, improve display quality, so solve existing double-vision display due to the crosstalk phenomenon between adjacent subpixels, cause the affected technical matters of display quality.
As shown in Figure 6, further, in the embodiment of the present invention, also comprise and choose superpositing unit 4; Bucking voltage is two side bucking voltage sums; Two side bucking voltages, the crosstalk that the interference voltage being respectively used to compensate this pixel electrode left side and the right produces; Choose superpositing unit 4 for from the null balance voltmeter of pre-prepd side, the numerical value of two side bucking voltages is chosen according to the interference voltage on the primary voltage on this pixel electrode and this pixel electrode left side and the right, and by two side bucking voltage superpositions, draw bucking voltage.
Further, in the embodiment of the present invention, also comprise storage unit 5, for storing side null balance voltmeter.
Because the embodiment of the present invention has identical technical characteristic with the crosstalk reduction method of the double-vision display that the invention described above embodiment provides, so also identical technique effect can be produced, solve identical technical matters.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1. a crosstalk reduction method for double-vision display, is characterized in that: comprising:
Obtain the primary voltage corresponding with the gray scale for showing;
Obtain the bucking voltage of described primary voltage;
Described primary voltage and described bucking voltage are superposed, obtains voltage after compensating;
Voltage after described compensation is applied on the pixel electrode of sub-pixel;
Wherein, described bucking voltage is two side bucking voltage sums;
Described two side bucking voltages, the crosstalk that the interference voltage being respectively used to compensate this pixel electrode left side and the right produces.
2. the crosstalk reduction method of double-vision display according to claim 1, is characterized in that: described interference voltage is the primary voltage on the pixel electrode on this pixel electrode left side or the right.
3. the crosstalk reduction method of double-vision display according to claim 1, is characterized in that: the numerical value of described side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side.
4. the crosstalk reduction method of double-vision display according to claim 3, is characterized in that: the numerical value of described side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, is specially:
The first image of certain gray scale is shown in the left vision area of double-vision display, the primary voltage Va corresponding with this gray scale is applied on the pixel electrode of the sub-pixel of described left vision area, show the second image of another gray scale in right vision area, apply the primary voltage Vb corresponding with this another gray scale on the pixel electrode of the sub-pixel of described right vision area;
Measure the gray scale of described left vision area display, regulate Va, until the gray scale of described left vision area reaches normal simultaneously;
Now Va is adjusted to Va ', then bucking voltage is Va '-Va=2Vab, the side bucking voltage that described Vab is the interference voltage of primary voltage Va in side when being Vb.
5. the crosstalk reduction method of double-vision display according to claim 3, is characterized in that: the numerical value of described side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, is specially:
The first image of certain gray scale is shown in the right vision area of double-vision display, the primary voltage Va corresponding with this gray scale is applied on the pixel electrode of the sub-pixel of described right vision area, show the second image of another gray scale in left vision area, apply the primary voltage Vb corresponding with this another gray scale on the pixel electrode of the sub-pixel of described left vision area;
Measure the gray scale of described right vision area display, regulate Va, until the gray scale of described right vision area reaches normal simultaneously;
Now Va is adjusted to Va ', then bucking voltage is Va '-Va=2Vab, the side bucking voltage that described Vab is the interference voltage of primary voltage Va in side when being Vb.
6. the crosstalk reduction method of double-vision display according to claim 3, is characterized in that: the numerical value of described side bucking voltage draws according to the interference voltage of the primary voltage on this pixel electrode and this pixel electrode side, is specially:
The numerical value of side bucking voltage is from the null balance voltmeter of pre-prepd side, and the interference voltage according to the primary voltage on this pixel electrode and this pixel electrode side is chosen.
7. a double-vision display, is characterized in that: comprise primary voltage input circuit and bucking voltage input circuit, wherein
Described primary voltage input circuit is for obtaining the primary voltage corresponding with the gray scale for showing;
Described bucking voltage input circuit is connected between described primary voltage input circuit and described pixel electrode, for obtaining the bucking voltage of described primary voltage, and described primary voltage and described bucking voltage are superposed, obtain voltage after compensating, then voltage after described compensation is applied on the pixel electrode of sub-pixel;
Wherein, described double-vision display, also comprises and chooses superpositing unit;
Described bucking voltage is two side bucking voltage sums;
Described two side bucking voltages, the crosstalk that the interference voltage being respectively used to compensate this pixel electrode left side and the right produces;
Described superpositing unit of choosing is for from the null balance voltmeter of pre-prepd side, the numerical value of described two side bucking voltages is chosen according to the interference voltage on the primary voltage on this pixel electrode and this pixel electrode left side and the right, and by described two side bucking voltage superpositions, draw described bucking voltage.
8. double-vision display according to claim 7, is characterized in that: also comprise storage unit, for storing described side null balance voltmeter.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054143A (en) * | 1999-08-05 | 2001-02-23 | Nippon Hoso Kyokai <Nhk> | Crosstalk reduction method and system in stereoscopic image display by time division system |
| WO2006080540A1 (en) * | 2005-01-26 | 2006-08-03 | Sharp Kabushiki Kaisha | A multiple-viewer multiple-view display and display controller |
| CN101465110A (en) * | 2007-12-18 | 2009-06-24 | 统宝光电股份有限公司 | Electronic device, double-vision display and signal compensation apparatus and method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054143A (en) * | 1999-08-05 | 2001-02-23 | Nippon Hoso Kyokai <Nhk> | Crosstalk reduction method and system in stereoscopic image display by time division system |
| WO2006080540A1 (en) * | 2005-01-26 | 2006-08-03 | Sharp Kabushiki Kaisha | A multiple-viewer multiple-view display and display controller |
| CN101465110A (en) * | 2007-12-18 | 2009-06-24 | 统宝光电股份有限公司 | Electronic device, double-vision display and signal compensation apparatus and method thereof |
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