CN103513311A - Three-dimensional raster and naked eye three-dimensional display device - Google Patents
Three-dimensional raster and naked eye three-dimensional display device Download PDFInfo
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Abstract
The invention discloses a three-dimensional raster and a naked eye three-dimensional display device. The three-dimensional raster comprises a substrate and a raster graphic film fixed to the substrate, wherein the raster graphic film is provided with light-proof shielding parts and light transmitting slit parts, and the light-proof shielding parts and the light transmitting slit parts are arranged in a repeatedly alternated mode; the light transmitting slit parts are used for eliminating the relevance between the light transmitting slit parts and a sub-pixel structure of a plane display device so as to avoid generation of moire fringes. The light transmitting slit parts can eliminate the relevance between the light transmitting slit parts and the sub-pixel structure of the plane display device by modifying the shape of the light transmitting slit parts on the three-dimensional raster, the generation of the moire fringes is avoided, the naked eye three-dimensional display device has the advantages of being high in brightness, free of moire fringes and obvious in three-dimensional effect and the like, and accordingly comfortable sensation of people to watch three-dimensional display images is improved greatly.
Description
Technical field
The present invention relates to 3D stereo display technique field, relate in particular to a kind of 3 D grating without Moire fringe and bore hole 3D display device.
Background technology
In recent years, three-dimensional stereo display technique development rapidly, becomes the focus of people's research.At present, eyeglass stereoscopic display is successfully commercially produced, entered ordinary consumer family, no matter be polaroid glasses, or liquid crystal shutter glasses can well be separated the two-way image with certain parallax, thereby make beholder can see the stereo-picture with the larger depth of field.Yet, because people are in watching the process of this stereo-picture, must wear anaglyph spectacles, greatly limit people's the custom of watching, and had the discomfort that wearing spectacles brings.
Bore hole stereo display technique does not need to wear any glasses, and people are when watching stereotelevision, and eyes are unrestricted, has improved degree of freedom and the comfort level of watching in process.At present, common naked-eye stereoscopic display is mainly raster pattern naked-eye stereoscopic display, mainly 2D flat-panel screens and grating (also claiming 3 D grating) two parts, consists of.Grating mainly contains cylindrical grating and two kinds of modes of slit grating.Conventionally grating is arranged and is formed with planar linear by a plurality of structures and the identical raster unit of performance, and grating can be slit grating or post mirror, and corresponding raster unit is slit or lens pillar unit.Each raster unit with the perpendicular direction of its arrangement on light is not played to plus lens effect; In its orientation, be equivalent to plus lens and play optically focused imaging.This characteristic of grating makes it to image, have the effectiveness of " compression " and " isolation ".Grating divides the optical principle of picture, is to process by grating pair image, relends and helps original screen panel and make plane picture have stereoscopic sensation intuitively.By scenery being recorded to one group of left and right scape plane picture, and allow two only to see respectively corresponding picture, the relative parallax existing between two plane pictures of left and right will cause eyes adjustment to focus on angle, just, as seen true view, make people produce three-dimensional stereoscopic visual sense.
With opticses such as gratings, realizing bore hole 3D shows, the key component of this class 3D display can be divided into double-layer structure: top grating layer, conventionally be attached on the transparent bases such as certain thickness glass or organic glass or direct forming in transparent base surface, bottom is common LCD module and peripheral circuit.From front, see be exactly longitudinally or with the special angle strip grating (as shown in Figure 1, described densely covered strip grating 20 is skewed) that tilts to gather, each raster unit has covered several display pixels of LCD display or sub-pixel.LCD module is positioned at after optical structure layers, and each pixel represents, it is a three-dimensional point of shown object, the light that each LCD pixel or sub-pixel send is through the collimation of optics, form a branch of very thin light beam, the radiation direction that different pixels or sub-pixel send is different, left eye or right eye that accurate design by grating can allow these light be positioned at respectively the beholder of screen front correct position receive, and user just can see 3D stereoeffect like this.
Yet the display screen of 2D flat-panel screens is mainly comprised of two-dimensional array, each region, sub-pixel edge is lightproof area (when backlight irradiates display screen, we claim that lightproof area is black matrix).When display screen is illuminated by backlight, the black matrix that display screen produces is two-dimension light field structure, and itself and grating are illuminated the two-dimension light field structural interaction of generation, thereby produce so-called Moire fringe, have had a strong impact on vision viewing effect, i.e. Moire fringe effect.
In view of this, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is the defect for above-mentioned prior art, and a kind of 3 D grating and bore hole 3D display device are provided.To solve in prior art, the Moire fringe effect that bore hole 3D three-dimensional display exists, affects the problem of vision viewing effect.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of 3 D grating, be arranged on the place ahead of flat-panel display devices, described 3 D grating comprises: substrate and be fixed on the raster graphic film on described substrate, wherein, described raster graphic film is provided with alternately light tight occlusion part and the transmissive slit portion of layout of repeating, described transmissive slit portion, for eliminating the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoids the generation of Moire fringe.
Described 3 D grating, wherein, described transmissive slit portion comprises:
The first area corresponding with plane sub-pixel, it is shaped as parallelogram, and the acute angle in its interior angle is identical with the first interior angle of following right-angle triangle;
The second area that shape is identical and San region, it is shaped as right-angle triangle;
The interior angle Zhong Liangge obtuse angle of described first area contacts with first interior angle in second area, San region respectively; The hypotenuse in the Yi Tiao limit at described obtuse angle and second area, San region coincides, and a right-angle side in another limit and second area, San region is on same straight line.
Described 3 D grating, wherein, high half that the length of another right-angle side in described second area, San region is first area.
Described 3 D grating, wherein, another right-angle side in described second area, San region and the Length Ratio of a right-angle side are 1:3.
Described 3 D grating, wherein, described transmissive slit portion comprises: Si region and Wu region, described Si region and Wu region be shaped as the isosceles right-angled trapezium that shape is identical;
The base in described Si region and Wu region coincides, and right-angle side is not on same straight line.
Described 3 D grating, wherein, the angle at described four-range Yi Ge base angle is arctan(1/3).
Described 3 D grating, wherein, described raster graphic film is attached on described substrate by OCA is gluing.
A 3D display device, wherein, comprising: flat-panel display devices and above-mentioned 3 D grating, and described 3 D grating is arranged on flat-panel display devices the place ahead, and distance is positioned at and realizes the horizon range that bore hole 3D shows.
Described bore hole 3D display device, wherein, described flat-panel display devices is flat liquid crystal display, the sub-pixel structure in described flat liquid crystal display be shaped as rectangle.
3 D grating provided by the present invention and bore hole 3D display device, by improving the shape of the transmissive slit portion on 3 D grating, make it eliminate the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoid the generation of Moire fringe, make bore hole 3D display device possess the features such as high brightness, moire-free, stereoeffect be obvious, thereby greatly increase the comfort that people watch stereoscopically displaying images.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of densely covered strip grating of the prior art.
Fig. 2 is the sub-pixel structure schematic diagram on flat-panel display devices of the present invention.
Fig. 3 is the schematic diagram of the first embodiment of the transmissive slit portion of 3 D grating of the present invention.
Fig. 4 is the schematic diagram of the sub-pixel structure of prior art.
Fig. 5 is the schematic diagram of the second embodiment of the transmissive slit portion of 3 D grating of the present invention.
Fig. 6 is the schematic diagram that increases the raster graphic film of transmissive slit portion in 3 D grating of the present invention.
Fig. 7 is the schematic diagram of the 4th embodiment of the transmissive slit portion of 3 D grating of the present invention.
Fig. 8 is the schematic diagram of bore hole 3D display device of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of 3 D grating, be arranged on the place ahead of flat-panel display devices, described 3 D grating comprises: substrate and be fixed on the raster graphic film on described substrate, wherein, described raster graphic film is provided with alternately light tight occlusion part and the transmissive slit portion of layout of repeating, described transmissive slit portion, for eliminating the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoids the generation of Moire fringe.Wherein, as shown in Figure 2, the sub-pixel structure 10 of described flat-panel display devices be shaped as rectangle, each sub-pixel structure 10 comprises: R sub-pixel (representing with R), G sub-pixel (representing with G) and B sub-pixel (representing with B).
By several embodiment, illustrate the shape of described transmissive slit portion is how to realize the generation of avoiding Moire fringe respectively below.
Embodiment mono-
Refer to Fig. 3, the schematic diagram of the first embodiment of the transmissive slit portion that it is 3 D grating of the present invention.As shown in the figure, described transmissive slit portion comprises: first area 110, second area 120 and San region 130, and wherein, described first area 110 is corresponding with the sub-pixel structure of flat-panel display devices, is shaped as parallelogram, and its interior angle comprises an acute angle; Described second area 120 is identical with the shape in San region 130, it is all right-angle triangle, and the interior angle Zhong Liangge obtuse angle of described first area 110 contacts with first interior angle (angle of its first interior angle is identical with above-mentioned acute angle) in second area 120, San region 130 respectively; The hypotenuse in the Yi Tiao limit at described obtuse angle and second area 120, San region 130 coincides, and a right-angle side in another limit and second area, San region is on same straight line.The relevance with the single sub-pixel structure of flat-panel screens has been eliminated by described transmissive slit portion, thereby has effectively avoided the generation of Moire fringe.Compared with prior art, the transmissive slit portion of the present embodiment has also increased the transmission area of light greatly, thereby has strengthened the efficiency that sees through of light, has improved the whole display brightness of three-dimensional display.
Wherein, the length of the height of described right-angle triangle (being another above-mentioned right-angle side) is X, base (being an above-mentioned right-angle side) length is C, and the number of degrees of its first interior angle (being the number of degrees in the interior angle of parallelogram) are α, meet: tan(α)=X/C.
Be, the length on another limit at 110 obtuse angle, described first area is y with should be noted that, and it should be less than or equal to the base length of sub-pixel structure.The height of described first area 110 should equal the height of sub-pixel structure.
Embodiment bis-
See also Fig. 4 and Fig. 5, on the basis of embodiment mono-, through research, find, when the height of sub-pixel structure is b, when base length is a, (now, the height of described transmissive slit Bu first area is also b, and the length on another of obtuse angle limit is a).High half that the length of the second area of described transmissive slit portion, another right-angle side in San region is first area: the length of another right-angle side in second area, San region is b/2, can realize preferably stereo display effect.
Embodiment tri-
On the basis of embodiment mono-, when the number of degrees α of the first interior angle can be arctan(1/3), in addition, also can adopt common arctan (1/6), arctan (2/9) equal angles.At this, do not enumerate.
With respect to prior art, above-mentioned three embodiment are that the glazed area that increased transmissive slit portion is eliminated the relevance with sub-pixel structure, thereby effectively avoid Moire fringe effect.The schematic diagram of the raster graphic film of its formation as shown in Figure 6.
Embodiment tetra-
As shown in Figure 7, described transmissive slit portion comprises: Si region and Wu region, described Si region and Wu region be shaped as the isosceles right-angled trapezium that shape is identical; The base in described Si region and Wu region coincides, and right-angle side is not on same straight line.Compared to existing technologies, the present embodiment is to have reduced glazed area, with strip grating as Fig. 1 first than, transmissive slit portion shown in Fig. 7 has reduced by two parts: Liu region 51 and SECTOR-SEVEN territory 52, the triangle that described Liu region 51 and SECTOR-SEVEN territory 52 are homalographic, wherein, triangle height is x, triangle base is e, e=x/tan (α), thus, the grating translucent construction figure that present technique proposes has been eliminated the relevance with the single sub-pixel structure of flat-panel screens, thereby effectively avoided the generation of Moire fringe, simultaneously, compared with prior art, this optical grating construction figure that present technique proposes is owing to having removed the glazed area in Liu region 51 and SECTOR-SEVEN territory 52, thereby the light that can effectively reduce sub-pixel neighbor passes through, avoided the generation of three-dimensional display crosstalk phenomenon, improved the display quality of the whole picture of three-dimensional display.
Embodiment five
On the basis of embodiment tetra-, the angle when described four-range Yi Ge base angle is arctan(1/3) when (its another one base angle is right angle), can realize preferably stereo display effect.
The present invention also provides a kind of bore hole 3D display device, as shown in Figure 8, it comprises: flat-panel display devices 201 and above-mentioned 3 D grating (described 3 D grating comprises: substrate 202 and be fixed on the raster graphic film 203 on described substrate 202), described 3 D grating is arranged on flat-panel display devices 201 the place aheads, and distance is between the two positioned at and realizes the horizon range that bore hole 3D shows.
Further, described flat-panel display devices is flat liquid crystal display, CRT monitor, plasma display, OLED display etc., the sub-pixel structure on described flat-panel display devices be shaped as rectangle.
Further, described raster graphic film 203 is attached on described substrate 202 by OCA is gluing.
In sum, 3 D grating of the present invention and bore hole 3D display device, wherein, described 3 D grating comprises: substrate and be fixed on the raster graphic film on described substrate, described raster graphic film is provided with alternately light tight occlusion part and the transmissive slit portion of layout of repeating, described transmissive slit portion, for eliminating the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoids the generation of Moire fringe.It is by improving the shape of the transmissive slit portion on 3 D grating, make it eliminate the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoid the generation of Moire fringe, make bore hole 3D display device possess the features such as high brightness, moire-free, stereoeffect be obvious, thereby greatly increase the comfort that people watch stereoscopically displaying images.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (9)
1. a 3 D grating, be arranged on the place ahead of flat-panel display devices, described 3 D grating comprises: substrate and be fixed on the raster graphic film on described substrate, it is characterized in that, described raster graphic film is provided with alternately light tight occlusion part and the transmissive slit portion of layout of repeating, described transmissive slit portion, for eliminating the relevance of the sub-pixel structure of transmissive slit portion and flat-panel display devices, avoids the generation of Moire fringe.
2. 3 D grating according to claim 1, is characterized in that, described transmissive slit portion comprises:
The first area corresponding with plane sub-pixel, it is shaped as parallelogram, and the acute angle in its interior angle is identical with the first interior angle of following right-angle triangle;
The second area that shape is identical and San region, it is shaped as right-angle triangle;
The interior angle Zhong Liangge obtuse angle of described first area contacts with first interior angle in second area, San region respectively; The hypotenuse in the Yi Tiao limit at described obtuse angle and second area, San region coincides, and a right-angle side in another limit and second area, San region is on same straight line.
3. 3 D grating according to claim 2, is characterized in that, high half that the length of another right-angle side in described second area, San region is first area.
4. according to the 3 D grating described in claim 2 or 3, it is characterized in that, another right-angle side in described second area, San region and the Length Ratio of a right-angle side are 1:3.
5. 3 D grating according to claim 1, is characterized in that, described transmissive slit portion comprises: Si region and Wu region, described Si region and Wu region be shaped as the isosceles right-angled trapezium that shape is identical;
The base in described Si region and Wu region coincides, and right-angle side is not on same straight line.
6. 3 D grating according to claim 5, is characterized in that, the angle at described four-range Yi Ge base angle is arctan(1/3).
7. 3 D grating according to claim 1, is characterized in that, described raster graphic film is attached on described substrate by OCA is gluing.
8. a bore hole 3D display device, is characterized in that, comprising: flat-panel display devices and 3 D grating claimed in claim 1, and described 3 D grating is arranged on flat-panel display devices the place ahead, and distance is positioned at and realizes the horizon range that bore hole 3D shows.
9. bore hole 3D display device according to claim 8, is characterized in that, described flat-panel display devices is flat liquid crystal display, the sub-pixel structure in described flat liquid crystal display be shaped as rectangle.
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| CN105185812A (en) * | 2015-09-08 | 2015-12-23 | 京东方科技集团股份有限公司 | Organic light emitting diode (OLED) pixel structure, display substrate and display device |
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| CN108594344B (en) * | 2018-05-02 | 2020-06-23 | 四川大学 | Slit grating design method for weakening moire in LED naked eye 3D display |
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