CN102914892A - Method for driving liquid crystal slit gratings - Google Patents
Method for driving liquid crystal slit gratings Download PDFInfo
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- CN102914892A CN102914892A CN2012104682320A CN201210468232A CN102914892A CN 102914892 A CN102914892 A CN 102914892A CN 2012104682320 A CN2012104682320 A CN 2012104682320A CN 201210468232 A CN201210468232 A CN 201210468232A CN 102914892 A CN102914892 A CN 102914892A
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Abstract
The invention discloses a method for driving liquid crystal slit gratings, which is applied to three-dimensional display devices. A liquid crystal slit grating of a three-dimensional display device comprises a first substrate and a second substrate, wherein the first and second substrates are superimposed together, each substrate is provided with a plurality of mutually parallel strip electrodes, and the plurality of strip electrodes of the first substrate and the plurality of strip electrodes of the second substrate are perpendicular to each other and constitute an array-type grid electrode array. The driving method comprises the following step that: when the driving voltage difference between two substrates which are perpendicular to each other and arranged on the first and second substrates exceeds a threshold voltage of a liquid crystal panel, sub pixels corresponding to the positions on the liquid crystal panel and perpendicular to the two electrodes are driven. The method disclosed by the invention has the advantages that the co-fusion of 2D (two dimension) and 3D (three dimension) is realized, and a 3D visual window can be arbitrarily dragged to change the grating distance and the angle, so that the 3D visual window is matched with an image to be displayed, thereby achieving a good display effect and realizing the horizontal and vertical scanning of liquid crystal gratings; and through cooperating with the fast switching of signals of the liquid crystal panel, the full high-definition display in the horizontal and vertical directions is realized.
Description
Technical field
The present invention relates to a kind of driving method of liquid crystal slit grating, especially relate to a kind of driving method of the liquid crystal slit grating for bore hole stereo display.
Background technology
Based on three-dimensional (being free stereo) the display technique phase colorimetric of the bore hole of parallax divide, light divides with the time wear-type 3-D display of grading, because in the constraint of objectively having broken away from the auxiliary devices such as anaglyph spectacles, improved the comfort level of watching and widened application and be subject to extensive concern.Disparity barrier (parallax barrier) technology is a kind of as the bore hole stereo display technique, for ease of realizing the compatibility of 2D and 3D, no matter is preposition barrier or rearmounted barrier, and liquid crystal slit grating all is widely used.At present, the bore hole 3D display technique of liquid crystal slit grating collocation 2D display screen has realized not applying the compatibility of 2D and 3D voltage on the liquid crystal slit grating when 2D shows and possess high permeability, does not substantially affect the characteristics such as 2D brightness of display screen resolution; 3D applies voltage at liquid crystal slit grating when showing and forms chequered with black and white striped, thereby makes people's right and left eyes watch the image that possesses certain parallax; But present display mode is comparatively single, namely can only realize that 3D shows, can not show the 2D picture at regional area by full screen when liquid crystal slit grating applies voltage; When liquid crystal slit grating applies voltage, not watching the 2D picture by full screen, can not show owing to the interference between liquid crystal grating and the liquid crystal panel at local implementation 3D, thereby so that display effect is not good, the comfort level that impact is watched.In addition, reducing the method for interfering by inclined electrode has certain effect, but this method can't realize laterally, the function of 3D effect is vertically arranged, but also can not realize picture-in-picture function.
Summary of the invention
In view of this, be necessary to provide a kind of and not only can overcome interference, but also can realize that display places the full HD 3D effect with endways placement sidewards, can also realize the driving method of this liquid crystal slit grating of picture-in-picture function simultaneously.
The present invention realizes like this, a kind of driving method of liquid crystal slit grating, it is applied to 3 d display device, this 3 d display device comprises liquid crystal panel and liquid crystal slit grating, this liquid crystal slit grating is fixed on this liquid crystal panel and is parallel to this liquid crystal panel, this liquid crystal slit grating comprises first substrate and the second substrate that is superimposed together, be provided with the some strip electrodes that are parallel to each other on each substrate, some strip electrodes of this first substrate and the mutual vertical also grid electrode array of forming array formula of some strip electrodes of this second substrate.The driving method of this liquid crystal slit grating may further comprise the steps:
Direction along some strip electrodes of this first substrate is first direction, direction along some strip electrodes of this second substrate is second direction, this first direction is vertical with this second direction, when the driving voltage between two perpendicular on this first substrate and this second substrate electrodes is poor when surpassing the threshold voltage of this liquid crystal panel, vertical to locate corresponding sub-pix driven with these two electrodes on this liquid crystal panel.
Wherein, definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating also comprises the echelon grating driving method, this echelon grating driving method comprises the steps: that on this first direction respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes; On this second direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes.
Wherein, definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating comprises that 2D and 3D melt driving method altogether, this 2D and 3D melt altogether driving method and may further comprise the steps: on this first direction, be on continuous some electrodes and all apply this first driving voltage; On this second direction, be that respective drive voltage is the even spaced order of the second driving voltage, the 3rd driving voltage on continuous some electrodes.
Wherein, definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating comprises the raster driving method, this raster driving method comprises the steps: on this first direction, all applies this first driving voltage on some electrodes; On this second direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes.
Wherein, definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating comprises the raster driving method, this raster driving method comprises the steps: that on this first direction respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes; On this second direction, all apply this first driving voltage on some electrodes.
Wherein, the width of each electrode is less than the width of the sub-pix on this liquid crystal panel.
Wherein, the width of each electrode is 0.5 times or 0.25 times or 0.2 times of width of this sub-pix.
The driving method of this liquid crystal slit grating provided by the invention has the following advantages: realize melting altogether of 2D and 3D, and the 3D form can drag arbitrarily, echelon grating can be eliminated moire fringes, and by different type of drive, changing its pitch and angle makes it to be complementary in the shown image of panel, thereby reach good display effect, by different type of drive, realize the anyhow scanning of liquid crystal grating, and the quick switching of collocation panel signal, thereby realize the anyhow full HD demonstration of direction.
Description of drawings
Fig. 1 is the perspective exploded view of the 3 d display device of the driving method of employing liquid crystal slit grating of the present invention.
Fig. 2 is the structure for amplifying synoptic diagram of the liquid crystal slit grating of Fig. 1 Stereo display device.
Fig. 3 is the bore hole stereo display schematic diagram of liquid crystal slit grating among Fig. 2.
A kind of application mode of the driving method of the liquid crystal slit grating that Fig. 4 provides for first embodiment of the invention.
Fig. 5 is the another kind of application mode of the driving method of liquid crystal slit grating among Fig. 4.
Fig. 6 is the third application mode of the driving method of liquid crystal slit grating among Fig. 4.
Fig. 7 is the 4th kind of application mode of the driving method of liquid crystal slit grating among Fig. 4.
A kind of application mode of the driving method of the liquid crystal slit grating that Fig. 8 provides for the second embodiment.
Fig. 9 is the another kind of application mode of the driving method of liquid crystal slit grating among Fig. 8.
A kind of application mode of the driving method of the liquid crystal slit grating that Figure 10 provides for the 3rd embodiment.
Figure 11 is the another kind of application mode of the driving method of liquid crystal slit grating among Figure 10.
A kind of application mode of the driving method of the liquid crystal slit grating that Figure 12 provides for the 3rd embodiment.
Figure 13 is the another kind of application mode of the driving method of liquid crystal slit grating among Figure 12.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, Fig. 2 and Fig. 3, wherein, Fig. 1 is the perspective exploded view of the 3 d display device of the driving method of employing liquid crystal slit grating of the present invention; Fig. 2 is the structure for amplifying synoptic diagram of the liquid crystal slit grating of Fig. 1 Stereo display device; Fig. 3 is the bore hole stereo display schematic diagram of liquid crystal slit grating among Fig. 2.3 d display device comprises liquid crystal slit grating 1 and liquid crystal panel 2.Liquid crystal slit grating 1 is used for bore hole stereo display, and liquid crystal slit grating 1 is fixed on the display panels 2 and is parallel to this liquid crystal panel 2.
Liquid crystal slit grating 1 comprises the upper and lower first substrate that is superimposed together and second substrate, be provided with the some strip electrodes that are parallel to each other on each substrate, some strip electrodes of this first substrate and the mutual vertical also grid electrode array of forming array formula of some strip electrodes of this second substrate.Some strip electrodes on each substrate can be by the etching mode setting.
The width of each electrode can be its 0.5 times or 0.25 times or 0.2 times or less less than the width of the sub-pix (sub-pixel) of liquid crystal panel 2.
When the driving voltage between two perpendicular on this first substrate and this second substrate electrodes is poor when surpassing the threshold voltage of this liquid crystal panel 2, vertical to locate corresponding sub-pix driven with these two electrodes on this liquid crystal panel 2.Definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, in the present embodiment, the first driving voltage, the second driving voltage, the 3rd driving voltage take 0, Vs, 2Vs be illustrated as example.
Definition is first direction along the direction of some strip electrodes of this first substrate, and definition is second direction along the direction of some strip electrodes of this second substrate, and this first direction is vertical with this second direction.Drive principle according to liquid crystal slit grating: when being added in voltage on the liquid crystal and being 2Vs (the poor threshold voltages that surpass this liquid crystal panel 2 of driving voltage on this first substrate and this second substrate between perpendicular two electrodes), liquid crystal could drive, voltage on being added in liquid crystal is 0, during Vs (the poor threshold voltages that do not have to surpass this liquid crystal panel 2 of driving voltage on this first substrate and this second substrate between perpendicular two electrodes), liquid crystal can not drive.Therefore, when certain electrode on the first direction and the pressure reduction of certain electrode on the second direction were 2Vs, the sub-pix at these two electrode places of intersecting formed black and highlights.
As shown in Figure 3, the drive principle of liquid crystal slit grating, left eye LEFT EYE and right eye RIGHT EYE form left eye vision area L and right eye vision area R by liquid crystal slit grating grating 1, liquid crystal slit grating 1 makes it to be complementary in liquid crystal panel 2 shown images by changing its pitch (pitch) and angle, thereby reaches good display effect; Realize the anyhow scanning of liquid crystal grating, and the quick switching of collocation panel signal, thereby realize the anyhow full HD demonstration of direction.Subsequent, the driving method of liquid crystal slit grating is described in detail.
The first embodiment of the driving method of liquid crystal slit grating
See also Fig. 4, Fig. 5, Fig. 6 and Fig. 7, it is the concrete application mode of the first embodiment of the driving method of liquid crystal slit grating, with 0, on the corresponding some electrodes that are applied on this first direction of the even spaced order of 2Vs, with 0, on the corresponding some electrodes that are applied on this second direction of the even spaced order of 2Vs, realize echelon grating.
See also Fig. 4, on some electrodes on this first direction corresponding driving voltage be 2Vs, 0,2Vs, 0 ... on some electrodes on this second direction corresponding driving voltage be 0,2Vs, 0,2Vs ..., this liquid crystal slit grating forms echelon grating.
See also Fig. 5, on some electrodes on this first direction corresponding driving voltage be 2Vs, 2Vs, 0,0,2Vs, 2Vs, 0,0 ... on some electrodes on this second direction corresponding driving voltage be 0,0,2Vs, 2Vs, 0,0,2Vs, 2Vs ... this liquid crystal slit grating also forms echelon grating, change pitch, in order to mate with the image that shows, reduce simultaneously moire fringes.
See also Fig. 6, on some electrodes on this first direction corresponding driving voltage be 2Vs, 2Vs, 0,0,2Vs, 2Vs, 0,0 ... on some electrodes on this second direction corresponding driving voltage be 0,2Vs, 0,2Vs ... this liquid crystal slit grating also forms echelon grating, change the angle of echelon grating, in order to mate with the image that shows, reduce simultaneously moire fringes.
See also Fig. 7, on some electrodes on this first direction corresponding driving voltage be 2Vs, 0,2Vs, 0 ... on some electrodes on this second direction corresponding driving voltage be 2Vs, 2Vs, 0,0,2Vs, 2Vs, 0,0 ... this liquid crystal slit grating also forms echelon grating, change the angle of echelon grating, in order to mate with the image that shows, reduce simultaneously moire fringes.
According to above-mentioned rule, in other embodiments, the pitch that can also change for the mode at other interval liquid crystal grating makes its images match shown with it.
The second embodiment of the driving method of liquid crystal slit grating
See also Fig. 8 and Fig. 9, the implementation that it melts driving method altogether for 2D and 3D: on this first direction, be on continuous some electrodes and all apply this first driving voltage; On this second direction, be that respective drive voltage is the even spaced order of the second driving voltage, the 3rd driving voltage on continuous some electrodes.
In Fig. 8 and Fig. 9, on this first direction, be on continuous some electrodes and all apply 0 voltage; On this second direction, be that respective drive voltage is 2Vs, Vs, 2Vs, Vs on continuous some electrodes ...Therefore, realize that 2D/3D melts altogether, and 3D form position is changed.
The 3rd embodiment of the driving method of liquid crystal slit grating
See also Figure 10 and Figure 11, it is the implementation that the full HD 3D of physical display device when endways the placement shows: on this first direction, all apply this first driving voltage on some electrodes; On this second direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes.
See also Figure 10, on this first direction, all apply 0 voltage on some electrodes; On this second direction, on some electrodes respective drive voltage be 2Vs, 0,2Vs, 0 ...See also Figure 11, on this first direction, all apply 0 voltage on some electrodes; On this second direction, on some electrodes respective drive voltage be 0,2Vs, 0,2Vs ...This grating forms raster, and the quick shear of the signal of collocation liquid crystal panel 2 realizes that its full HD 3D when endways the placement shows.
The 4th embodiment of the driving method of liquid crystal slit grating
See also Figure 12 and Figure 13, the implementation that it shows for the full HD 3D of physical display device when placing sidewards: on this first direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes; On this second direction, all apply this first driving voltage on some electrodes.
See also Figure 12, on this first direction, on some electrodes respective drive voltage be 2Vs, 0,2Vs, 0, On this second direction, all apply 0 voltage on some electrodes.See also Figure 13, on this first direction, on some electrodes respective drive voltage be 0,2Vs, 0,2Vs, On this second direction, all apply 0 voltage on some electrodes.This grating forms raster, and the quick shear of the signal of collocation liquid crystal panel 2 realizes that its full HD 3D when placing sidewards shows.
In sum, the present invention realizes melting altogether of 2D and 3D, and the 3D form can drag arbitrarily, and echelon grating can be eliminated moire fringes, and by different type of drive, changing its pitch and angle makes it to be complementary in the shown image of panel, thereby reach good display effect, by different type of drive, realize the anyhow scanning of liquid crystal grating, and the quick switching of collocation panel signal, thereby realize the anyhow full HD demonstration of direction.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the driving method of a liquid crystal slit grating, it is applied to 3 d display device, this 3 d display device comprises liquid crystal panel and liquid crystal slit grating, this liquid crystal slit grating is fixed on this liquid crystal panel and is parallel to this liquid crystal panel, this liquid crystal slit grating comprises first substrate and the second substrate that is superimposed together, be provided with the some strip electrodes that are parallel to each other on each substrate, some strip electrodes of this first substrate and the mutual vertical also grid electrode array of forming array formula of some strip electrodes of this second substrate, it is characterized in that: the driving method of this liquid crystal slit grating may further comprise the steps:
Definition is first direction along the direction of some strip electrodes of this first substrate, definition is second direction along the direction of some strip electrodes of this second substrate, this first direction is vertical with this second direction, when the driving voltage between two perpendicular on this first substrate and this second substrate electrodes is poor when surpassing the threshold voltage of this liquid crystal panel, vertical to locate corresponding sub-pix driven with these two electrodes on this liquid crystal panel.
2. the driving method of liquid crystal slit grating as claimed in claim 1, it is characterized in that: definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating also comprises the echelon grating driving method, and this echelon grating driving method comprises the steps:
On this first direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes;
On this second direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes.
3. the driving method of liquid crystal slit grating as claimed in claim 1, it is characterized in that: the driving method of this liquid crystal slit grating comprises that 2D and 3D melt driving method altogether, and this 2D and 3D melt altogether driving method and may further comprise the steps:
On this first direction, be on continuous some electrodes and all apply this first driving voltage;
On this second direction, be that respective drive voltage is the even spaced order of the second driving voltage, the 3rd driving voltage on continuous some electrodes.
4. the driving method of liquid crystal slit grating as claimed in claim 1, it is characterized in that: definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating comprises the raster driving method, and this raster driving method comprises the steps:
On this first direction, all apply this first driving voltage on some electrodes;
On this second direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes.
5. the driving method of liquid crystal slit grating as claimed in claim 1, it is characterized in that: definition is the first driving voltage less than the driving voltage of this threshold voltage, the driving voltage that definition equals this doorframe voltage is the second driving voltage, definition is the 3rd driving voltage greater than the driving voltage of this threshold voltage, the driving method of this liquid crystal slit grating comprises the raster driving method, and this raster driving method comprises the steps:
On this first direction, respective drive voltage is the even spaced order of the first driving voltage, the 3rd driving voltage on some electrodes;
On this second direction, all apply this first driving voltage on some electrodes.
6. the driving method of liquid crystal slit grating as claimed in claim 1, it is characterized in that: the width of each electrode is less than the width of the sub-pix on this liquid crystal panel.
7. the driving method of liquid crystal slit grating as claimed in claim 6 is characterized in that: the width of each electrode is 0.5 times or 0.25 times or 0.2 times of the width of this sub-pix.
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| WO2015165170A1 (en) * | 2014-04-30 | 2015-11-05 | 京东方科技集团股份有限公司 | Liquid crystal grating and display device |
| CN105301788A (en) * | 2015-11-30 | 2016-02-03 | 惠州Tcl移动通信有限公司 | 3D display watch and control method thereof |
| CN106125417A (en) * | 2016-09-09 | 2016-11-16 | 万维云视（上海）数码科技有限公司 | A kind of liquid crystal grating and control method, 3D display floater and display device |
| CN106292087A (en) * | 2016-09-07 | 2017-01-04 | 万维云视（上海）数码科技有限公司 | A kind of liquid crystal grating, display device and driving method |
| WO2018121642A1 (en) * | 2016-12-29 | 2018-07-05 | 中山大学 | System and method for improving resolution of view displayed by raster 3d display |
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| CN106292087A (en) * | 2016-09-07 | 2017-01-04 | 万维云视（上海）数码科技有限公司 | A kind of liquid crystal grating, display device and driving method |
| CN106125417A (en) * | 2016-09-09 | 2016-11-16 | 万维云视（上海）数码科技有限公司 | A kind of liquid crystal grating and control method, 3D display floater and display device |
| CN106125417B (en) * | 2016-09-09 | 2023-03-14 | 万维云视（上海）数码科技有限公司 | Liquid crystal grating and control method thereof, 3D display panel and display device |
| WO2018121642A1 (en) * | 2016-12-29 | 2018-07-05 | 中山大学 | System and method for improving resolution of view displayed by raster 3d display |
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