CN102116968B - Stereoscopic liquid crystal grating screen and stereoscopic liquid crystal displayer - Google Patents
Stereoscopic liquid crystal grating screen and stereoscopic liquid crystal displayer Download PDFInfo
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- CN102116968B CN102116968B CN2010100336832A CN201010033683A CN102116968B CN 102116968 B CN102116968 B CN 102116968B CN 2010100336832 A CN2010100336832 A CN 2010100336832A CN 201010033683 A CN201010033683 A CN 201010033683A CN 102116968 B CN102116968 B CN 102116968B
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Abstract
The embodiment of the invention provides a stereoscopic liquid crystal grating screen and a stereoscopic liquid crystal displayer, wherein the stereoscopic liquid crystal grating screen is formed by butt-jointing a conductive substrate and an array substrate with boxes; liquid crystals are arranged between the boxes; orientating films are arranged at the internal side of the conductive substrate and the internal side of the array substrate respectively; the orientating film consists of a plurality of orientating units; the orientating units are arranged corresponding to the pixels on the array substrate; and a plurality of wedged grooves with sparse outside and dense inside are formed on the orientating units. In the embodiment of the invention, under the control of different data signal voltages, the liquid crystal molecules of the stereoscopic liquid crystal grating screen have different deflection degrees, thus changing the curvature ratio of the stereoscopic liquid crystal grating screen, and further realizing the cylindrical-surface grating with higher grating density and variable grating pitch.
Description
Technical field
The embodiment of the invention relates to three-dimensional lcd technology, relates in particular to a kind of three-dimensional liquid crystal grating screen and stereo-liquid crystal display device.
Background technology
Stereo-liquid crystal display device is a kind of device of realizing the 3 D stereo display effect based on the light-dividing principle of binocular parallax and cylindrical grating.Wherein, as shown in Figure 1, the lamellar grating that the cylindrical lens that cylindrical grating 2 is arranged by a plurality of planar line with same structure parameter and performance is formed is processed by plastic material usually.As shown in Figure 2, existing three-dimensional liquid crystal display-display mainly comprises two dimensional surface display 1 and cylindrical grating 2, and wherein, cylindrical grating 2 is attached on the display surface of two dimensional surface display 1.
When showing, through the branch light action of cylindrical grating 2, the right and left eyes image that two dimensional surface display 1 is in stagger the position separately makes beholder's right and left eyes see image separately respectively.For example, as shown in Figure 2, the beholder watches the image of non-shaded portion on the two dimensional surface display 1 through right eye 3; Watch the image of two dimensional surface display 1 top shadow part through left eye 4.After this, according to the binocular parallax principle, the beholder becomes stereo-picture with the right and left eyes image co-registration in brain, thereby realizes the stereo display effect.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
The raster density (horizontal cycle that also can be called grating) of existing cylindrical grating is lower, and can't accurately cooperate with the Pixel Dimensions of two dimensional surface display, therefore can produce and crosstalk and colored Morie fringe, thereby influence the stereo display effect.
The pitch of existing cylindrical grating is changeless; Make beholder's left eye or right eye just can see anaglyph in specific zone; The stereoeffect of the stereo-picture that then can not see correct stereo-picture in other zones or see is not obvious, thereby has limited the scope in the 3 D visible zone of stereo-liquid crystal display device.
Summary of the invention
The embodiment of the invention provides a kind of three-dimensional liquid crystal grating screen and stereo-liquid crystal display device, in order to a kind of three-dimensional liquid crystal grating screen and stereo-liquid crystal display device, to realize high light grid density and variable pitch.
The embodiment of the invention provides a kind of three-dimensional liquid crystal grating screen; Wherein said three-dimensional liquid crystal grating screen is become box-like with array base palte by electrically-conductive backing plate; Be provided with liquid crystal between box, the inboard inboard and said array base palte of said electrically-conductive backing plate is respectively arranged with alignment films, and said alignment films is made up of a plurality of orientation unit; Said orientation unit and the corresponding setting of the pixel on the said array base palte are formed with close a plurality of vee-cuts in outer the dredging on the said orientation unit.
Another embodiment of the present invention provides a kind of stereo-liquid crystal display device that comprises above-mentioned three-dimensional liquid crystal grating screen, wherein also comprises: the two dimensional surface display, said three-dimensional liquid crystal grating screen is arranged on the display surface of said two dimensional surface display.
The described three-dimensional liquid crystal grating screen of the embodiment of the invention is under the control of different voltage data signals; The degree of deflection of liquid crystal molecule is different; Thereby make the radius-of-curvature of three-dimensional liquid crystal grating screen change the cylindrical grating that therefore can realize having high light grid density and variable pitch.
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 property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing cylindrical grating;
Fig. 2 is the light-dividing principle synoptic diagram of existing stereo-liquid crystal display device
Fig. 3 is the structural representation of three-dimensional liquid crystal grating screen embodiment according to the invention;
Fig. 4 is the structural representation of an orientation unit in the alignment films shown in Figure 3.
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 the structural representation of three-dimensional liquid crystal grating screen embodiment according to the invention; As shown in the figure; This solid liquid crystal grating screen is become by 20 pairs of box-likes of electrically-conductive backing plate 10 and array base palte; Be provided with liquid crystal 30 between box, the inboard inboard and said array base palte 20 of said electrically-conductive backing plate 10 is respectively arranged with alignment films 40.Wherein, electrically-conductive backing plate 10 can form through direct deposition on glass tin indium oxide material in cleaning.Array base palte 20 is provided with pel array; Each pixel is by thin film transistor (TFT) (Thin FilmTransistor; Be called for short: TFT) control, said TFT can form on glass substrate through semiconductor process techniques such as film technique, photoetching technique, lithographic techniques.Liquid crystal 30 can adopt liquid crystal drip-injection, and (One Drop Filling, be called for short: ODF) technology is formed between said box.
Said alignment films 40 is made up of a plurality of orientation unit, the corresponding setting of pixel on said orientation unit and the said array base palte 20.Particularly, orientation unit can with the corresponding one by one setting of the pixel on the array base palte 20; Perhaps, the corresponding setting of a pixel on a plurality of orientation unit and the array base palte 20.
Fig. 4 is the structural representation of an orientation unit, and is as shown in the figure, is formed with close a plurality of vee-cuts 41 in outer the dredging on this orientation unit, and these vee-cuts 41 can form through on coating film 42, adopting illumination or friction orientation process such as (Rubbing).Particularly, as shown in the figure, the spacing AB of adjacent two vee-cuts 41＞BC＞CD＞DE＞EF; Because the consistency of thickness of alignment films 40, therefore, the height of a plurality of vee-cuts 41 is identical; And the angle of gradient of each vee-cut 41 becomes greatly from two side direction centers gradually, that is, and and θ
5＞θ
4＞θ
3＞θ
2＞θ
1Thereby, form close structure in outer the dredging.
Present embodiment is formed with the alignment films of a plurality of vee-cuts close in outer the dredging through setting; Make liquid crystal molecule produce certain tilt angle, (Twisted Nematic is called for short: TN) type liquid crystal display principle according to the prior art twisted-nematic; Between box, form electric field applying data-signal on the pixel; Make liquid crystal molecule in the effect of electric field deflect, finally realize the arrangement that gradual change is orderly, see through direction of light thereby change.Particularly; As shown in Figure 3, in an orientation unit, be similar to along vertically arranging near the liquid crystal molecule at middle part; And be similar to along horizontal near the liquid crystal molecule of both sides; Make that the light that sees through from the middle part is longer by way of the distance of liquid crystal molecule, thereby on optical property, form a cylindrical lens unit, therefore can play the branch light action that is similar to existing cylindrical grating 2.
The said three-dimensional liquid crystal grating screen of present embodiment is with respect to the advantage of existing cylindrical grating 2: under the control of different voltage data signals; The degree of deflection of liquid crystal molecule is different; Thereby make the radius-of-curvature of three-dimensional liquid crystal grating screen change the cylindrical grating that therefore can realize having high light grid density and variable pitch.And,, therefore can not produce the defective of the thickness limits transmittance that is similar to existing cylindrical grating because the said three-dimensional liquid crystal grating screen of present embodiment is not to be processed by plastic material yet.
In addition, according to demand, can suitably adjust the vee-cut structure on the orientation unit to raster density and pitch; For example, can make the alignment films of the inboard setting of said electrically-conductive backing plate 10 can have identical orientation or different orientations with the alignment films that the inboard of said array base palte 20 is provided with, the vee-cut in each orientation unit of alignment films can be arranged along the middle body left-right symmetric; Also can asymmetric geometry; But in the practice, when two alignment films up and down have same orientation, and during the vee-cut symmetric offset spread; Raster density and pitch are controlled more easily, and spectrophotometric result is also better.
When practical application, can the said three-dimensional liquid crystal grating screen of the foregoing description be arranged on the display surface of two dimensional surface display and promptly can form stereo-liquid crystal display device.Particularly, can said three-dimensional liquid crystal grating screen be attached on the display surface of said two dimensional surface display.And, preferably, can make the sub-pix size of pixel size and two dimensional surface display of array base palte 20 in the three-dimensional liquid crystal grating screen consistent.
Owing to adopt the described three-dimensional liquid crystal grating screen of the foregoing description to replace existing cylindrical grating 2 to form stereo-liquid crystal display device; Under the driving of different pieces of information signal voltage, realized variable pitch; Thereby scope that can the stereo viewing area produces restriction, and can form higher raster density, therefore is easy to accurately cooperate with the Pixel Dimensions of two dimensional surface display; Thereby avoid crosstalking and the generation of colored Morie fringe, realized better stereo display effect.
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 (7)
1. a three-dimensional liquid crystal grating shields; It is characterized in that said three-dimensional liquid crystal grating screen is become box-like with array base palte by electrically-conductive backing plate, is provided with liquid crystal between box; The inboard inboard and said array base palte of said electrically-conductive backing plate is respectively arranged with alignment films; Said alignment films is made up of a plurality of orientation unit, and said orientation unit and the corresponding setting of the pixel on the said array base palte are formed with close a plurality of vee-cuts in outer the dredging on the said orientation unit.
2. three-dimensional liquid crystal grating screen according to claim 1 is characterized in that the alignment films that the inboard of said electrically-conductive backing plate is provided with has identical orientation with the alignment films that the inboard of said array base palte is provided with.
3. three-dimensional liquid crystal grating screen according to claim 1 is characterized in that the vee-cut in each said orientation unit is a symmetric offset spread.
4. three-dimensional liquid crystal grating screen according to claim 1 is characterized in that said orientation unit and the corresponding one by one setting of the pixel on the said array base palte.
5. three-dimensional liquid crystal grating screen according to claim 1 is characterized in that, the corresponding setting of a pixel on a plurality of said orientation unit and the said array base palte.
6. a stereo-liquid crystal display device that comprises the arbitrary said three-dimensional liquid crystal grating screen of claim 1～5 is characterized in that, also comprises: the two dimensional surface display, said three-dimensional liquid crystal grating screen is arranged on the display surface of said two dimensional surface display.
7. stereo-liquid crystal display device according to claim 6 is characterized in that, said three-dimensional liquid crystal grating screen is attached on the display surface of said two dimensional surface display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100336832A CN102116968B (en) | 2010-01-04 | 2010-01-04 | Stereoscopic liquid crystal grating screen and stereoscopic liquid crystal displayer |
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| CN2010100336832A CN102116968B (en) | 2010-01-04 | 2010-01-04 | Stereoscopic liquid crystal grating screen and stereoscopic liquid crystal displayer |
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| CN102116968A CN102116968A (en) | 2011-07-06 |
| CN102116968B true CN102116968B (en) | 2012-08-22 |
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| CN106918919B (en) * | 2017-04-10 | 2023-03-10 | 万维云视（上海）数码科技有限公司 | Device for enhancing 3D display effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2679048B1 (en) * | 1991-07-12 | 1994-11-04 | Thomson Csf | ELECTROOPTIC MODULATOR. |
| WO2004095090A1 (en) * | 2003-04-17 | 2004-11-04 | Leonhard Kurz Gmbh & Co. Kg | Film and optical anti-counterfeiting element |
| US6924870B1 (en) * | 2002-04-30 | 2005-08-02 | Kent State University | Liquid crystal on silicon diffractive light valve |
| CN1905688A (en) * | 2006-08-09 | 2007-01-31 | 四川大学 | Method for processing sub-pixel error correction picture of raster type free 3-D display |
-
2010
- 2010-01-04 CN CN2010100336832A patent/CN102116968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2679048B1 (en) * | 1991-07-12 | 1994-11-04 | Thomson Csf | ELECTROOPTIC MODULATOR. |
| US6924870B1 (en) * | 2002-04-30 | 2005-08-02 | Kent State University | Liquid crystal on silicon diffractive light valve |
| WO2004095090A1 (en) * | 2003-04-17 | 2004-11-04 | Leonhard Kurz Gmbh & Co. Kg | Film and optical anti-counterfeiting element |
| CN1905688A (en) * | 2006-08-09 | 2007-01-31 | 四川大学 | Method for processing sub-pixel error correction picture of raster type free 3-D display |
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