CN101990106A - Naked eye visual stereoscopic display system and realization method thereof - Google Patents

Naked eye visual stereoscopic display system and realization method thereof Download PDF

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Publication number
CN101990106A
CN101990106A CN2009101092419A CN200910109241A CN101990106A CN 101990106 A CN101990106 A CN 101990106A CN 2009101092419 A CN2009101092419 A CN 2009101092419A CN 200910109241 A CN200910109241 A CN 200910109241A CN 101990106 A CN101990106 A CN 101990106A
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grating
naked eye
shoulder
point
liquid crystal
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夏明志
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Abstract

The invention relates to the technical field of stereoscopic display, disclosing a naked eye visual stereoscopic display system. The naked eye visual stereoscopic display system comprises a liquid crystal display, a screen display drive module, a video decoding module, a liquid crystal stereoscopic grating, a square-wave generator and a stereoscopic drive module. The stereoscopic drive module is electrically connected with the screen display drive module and the video decoding module, and converts original side-by-side image formats output by the video decoding module into a point-by-point mode suitable for stereoscopic display. The square-wave generator generates voltage square wave with a specific duty ratio to drive the liquid crystal stereoscopic grating so that the grating liquid crystal turns opaque so as to separate left and right eye sight lines, and the processed point-by-point stereoscopic image turns into naked eye visual stereoscopic display. The invention also discloses a realization method of the naked eye visual stereoscopic display system at the same time. By adopting the naked eye visual stereoscopic display system and the realization method thereof, provided by the invention, stereoscopic display can be presented with no need fort wearing stereoscopic glasses by users.

Description

A kind of naked eye visible stereo display system and its implementation
Technical field
The present invention relates to the three-dimensional stereo display technique field, more particularly, relate to three-dimensional display system and its implementation of a kind of Glassless that can not wear glasses.
Background technology
Existing stereo display technique and method major part all need to wear special anaglyph spectacles and could realize, progress and development along with Display Technique, occurred to wear that anaglyph spectacles can watch stereo-picture or video is the three-dimensional display system and the technology of Glassless, current bore hole Display Technique is divided into a variety of, and wherein to use in small size LCD be the most convenient and cheap to the slit grating.But existing slit grating still exists and have concealed wire appearance longitudinally when 3D shows, the effect that influence is viewed and admired, and visible angle is very little simultaneously.
As shown in Figure 1, this is the principle of common slit grating, shown in legend be the horizon-slice map of slit grating.Stick grating on the LCD surface, the height of the controlled switch liquid crystal of grating is relevant with viewing ratio.C-d in the accompanying drawing, e-f ... q-r adopts liquid crystal to power up the principle that changes the logical characteristic of photoconduction, before lcd screen, form voltage controlled obstructed light slit.We can know that Δ ABC equates with the area of Δ ABD~R by leg-of-mutton area formula, and same Δ ABc also equates with Δ ABd~r.That is to say that c~r is point-blank.By designing different viewing distances, need the height of grating be adjusted accordingly.From accompanying drawing 1, by a such slit, different picture about right and left eyes just can be seen respectively.Among the figure, what left eye was seen is white picture, and what right eye was seen is the black picture.When such screen shows stereoscopic picture plane, in harness picture at first need be treated to point and point image, as shown in Figure 3, promptly odd number is classified left-eye image as, and even number is classified eye image as, and is perhaps opposite.
Shown in the accompanying drawing 2 is the floor map of slit grating.From figure, the LCD screen has been divided into a lot of little by grating, under the condition of close together, can see vertical stripes clearly.But very unfortunately, real suitable viewing distance scope is less, and the user also can not a bit remove to appreciate picture according to the size of defined fully unchangeably.Therefore, press for a kind of stereo display technique of novel Glassless, solve the defective and the deficiency of existing stereo display technique, improve the stereo display effect.
Summary of the invention
The technical problem to be solved in the present invention is, at existing stereo display technique and implementation method display effect vertical concealed wire of bad and easy appearance and little defective and the deficiency of the angle of visual field, provides a kind of naked eye visible stereo display system and its implementation.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of naked eye visible stereo display system and its implementation, described naked eye visible stereo display system comprises that LCDs, screen show driver module and video decode module, also comprise the liquid crystal 3 D grating, square-wave generator and the three-dimensional driver module that are positioned at the liquid crystal display screen surfaces;
Described screen shows driver module and is electrically connected on LCDs, drives the demonstration of view data on LCDs;
Described three-dimensional driver module shows driver module with screen and the video decode module is electrically connected, and the original image format conversion shoulder to shoulder that the video decode module is exported is the point and point pattern that is fit to stereo display;
The voltage square wave that described square-wave generator produces particular duty cycle drives described liquid crystal 3 D grating, make the grating liquid crystal present opaque shape, the right and left eyes sight line is separated, original image shoulder to shoulder point and point stereo-picture is after treatment formed the stereo display of Glassless.
Concrete, described square-wave generator is the 120Hz square-wave generator.
Concrete, described liquid crystal 3 D grating is made of alternately square shape lcd segment and bright part.
Concrete, the voltage square wave of described particular duty cycle is the voltage square wave of 50% duty ratio.
Concrete, described LCDs is common liquid crystals TV or LCD Panel.
Concrete, described original stereo-picture shoulder to shoulder when compound stereoscopic shows, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line then shows according to a left side about the right side, so cycle arrangement.
In order to realize goal of the invention better, a kind of implementation method of naked eye visible stereo display system is provided, it is characterized in that, may further comprise the steps:
S1, stick the liquid crystal 3 D grating on the surface of LCD; Described liquid crystal 3 D grating is made of alternately lcd segment and bright part; The arrangement of liquid crystal is relevant with the viewing distance of the spacing of liquid crystal pixel and design;
S2, will original stereo-picture shoulder to shoulder synthesize point and point stereo-picture by three-dimensional driver module;
The voltage square wave that S3, square-wave generator produce particular duty cycle drives described liquid crystal 3 D grating, makes the grating liquid crystal present opaque shape, and the right and left eyes sight line is separated, and described stereo-picture is shoulder to shoulder formed the stereo display of Glassless.
In method of the present invention, described liquid crystal 3 D grating is made of alternately square shape lcd segment and bright part.
In method of the present invention, described LCDs is common liquid crystals TV or LCD Panel.
In method of the present invention, described stereo-picture shoulder to shoulder when compound stereoscopic shows, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line then shows according to a left side about the right side, so cycle arrangement, perhaps opposed alignment.
Implement a kind of naked eye visible stereo display system provided by the invention and its implementation, realized that the user need not wear anaglyph spectacles and just can watch stereo-picture, simultaneously, by implementing a kind of naked eye visible stereo display system provided by the invention and its implementation, improved the effect of Glassless stereo display, also solve the defective and the deficiency that vertical concealed wire when 3D shows, can occur that existing Glassless stereo display technique exists, promoted popularizing of Glassless stereo display technique.
Description of drawings
Below in conjunction with drawings and Examples, the invention will be further described, in the accompanying drawing:
Fig. 1 is the theory structure schematic diagram of existing common slit grating,
Fig. 2 is the floor map of existing common slit grating,
Fig. 3 existingly is treated to the schematic diagram of point and point image with original stereo-picture shoulder to shoulder,
Fig. 4 is the structural representation according to a kind of naked eye visible stereo display system of a preferred embodiment of the present invention,
Fig. 5 is the schematic diagram that original stereo-picture shoulder to shoulder is treated to point and point image according to a preferred embodiment of the present invention,
Fig. 6 is the grating structure arranged schematic diagram according to a kind of naked eye visible stereo display system of a preferred embodiment of the present invention,
Fig. 7 is the flow chart according to a kind of naked eye visible stereo display system implementation method of a preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention is further elaborated with specific embodiment with reference to the accompanying drawings below.
Fig. 1 is the theory structure schematic diagram of existing common slit grating, and Fig. 2 is the floor map of existing common slit grating, and Fig. 3 is the existing schematic diagram that original stereo-picture shoulder to shoulder is treated to point and point image.Contrast Fig. 1, Fig. 2 and Fig. 3 and following detailed description of the present invention, those of ordinary skill in the art can find technical characterictic of the present invention and advantage at an easy rate.
As shown in Figure 4 be structural representation according to a kind of naked eye visible stereo display system of a preferred embodiment of the present invention, wherein, naked eye visible stereo display system 400 comprises that LCDs 410, screen show driver module 411 (TCON) and video decode module 413, also comprise liquid crystal 3 D grating 420, square-wave generator 421 and three-dimensional driver module 412; Described liquid crystal 3 D grating 420 is positioned at the surface of LCDs 410, promptly is mounted on the surface of LCDs 410; Described liquid crystal 3 D grating 420 is made of alternately square shape lcd segment and bright part;
Described screen shows driver module 411 and is electrically connected on LCDs 410, drives the demonstration of view data on LCDs 410;
Described three-dimensional driver module 412 shows between driver module 411 and the video decode module 413 at screen, be electrically connected with apparent driver module 411 of screen and video decode module 413, the original image format conversion shoulder to shoulder that video decode module 413 is exported is the point and point pattern that is fit to stereo display; Described original stereo-picture shoulder to shoulder when compound stereoscopic shows, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line then shows according to a left side about the right side, so cycle arrangement, perhaps opposed alignment;
The voltage square wave that described square-wave generator 421 produces particular duty cycle drives described liquid crystal 3 D grating 420, make the grating liquid crystal present opaque shape, the right and left eyes sight line is separated, original image shoulder to shoulder point and point stereo-picture is after treatment formed the stereo display of Glassless; What present embodiment adopted is the 120Hz square-wave generator, the requirement that the frequency of square-wave generator is not determined, and generally between tens hertz and hundreds of hertz, as long as allow grating become stable grid, Tai Gao or too lowly all can cause the grid instability.The voltage square wave duty ratio 50% that square-wave generator produces is optimum, because the driving of grating need not have flip-flop, if duty ratio is not 50% but other duty ratio, will an Equivalent DC voltage appear at the two poles of the earth of grating, can cause the job insecurity of whole grating liquid crystal, therefore, non-50% duty ratio is not optimum scheme.
Described LCDs is common liquid crystals TV or LCD Panel.The present invention can be applied to a lot of technical fields of daily life, has promoted popularizing of Glassless stereo display technique greatly.
The schematic diagram that original stereo-picture shoulder to shoulder is treated to point and point image that is a preferred embodiment of the present invention as shown in Figure 5.As can be seen, original stereo-picture is shoulder to shoulder at first handled through synthetic, form point and point stereo-picture, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line shows according to a left side about the right side that then promptly the odd number of odd-numbered line is classified left-eye image as, and even number is classified eye image as, the odd number of even number line is classified eye image as, and even number is classified left-eye image as.
As shown in Figure 6 be grating structure arranged schematic diagram according to a kind of naked eye visible stereo display system of a preferred embodiment of the present invention, as can be seen, described liquid crystal 3 D grating is made of alternately square shape lcd segment and bright part, the representative of black is the grating lcd segment among the figure, the representative of white is eternal bright part, dividing the both positive and negative polarity of liquid crystal to be in parallel black part, is that 50% voltage square wave drives with duty ratio, can produce opaque grating as shown above.By this figure as can be seen, the grating blocked area has been evenly distributed to each pixel region, so the sort of concealed wire has not existed, image will be clear more bright.What the original processing mode of stereo-picture shoulder to shoulder shown in such arrangement architecture conjunction with figs. 5 can eliminate that existing slit grating exists vertical concealed wire and little defective and the deficiency of the angle of visual field can occur when 3D shows.
As shown in Figure 7 be that described method S700 may further comprise the steps according to the flow chart of a kind of naked eye visible stereo display system implementation method of a preferred embodiment of the present invention:
Among the step S702, stick the liquid crystal 3 D grating on the surface of common 2D LCDs; Described liquid crystal 3 D grating is made of alternately lcd segment and bright part, as shown in Figure 6, the representative of black is the grating lcd segment among the figure, and the representative of white is eternal bright part, and black both positive and negative polarity partly is in parallel, with duty ratio is that 50% voltage square wave drives, can produce the grating of square shape as shown above, as can be seen, grating has been evenly distributed to each pixel region, so the sort of concealed wire has not existed, image will be clear more bright; The arrangement of liquid crystal is relevant with the viewing distance of the spacing of liquid crystal pixel and design.
Among the step S704, the video data that the video decode module is come synthesizes point and point stereo-picture through three-dimensional driver module with original stereo-picture shoulder to shoulder, as shown in Figure 5, as can be seen, original stereo-picture is shoulder to shoulder at first handled through synthetic, forms point and point stereo-picture, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line shows according to a left side about the right side that then promptly the odd number of odd-numbered line is classified left-eye image as, and even number is classified eye image as; The odd number of even number line is classified eye image as, and even number is classified left-eye image as, perhaps opposed alignment.
Among the step S706, square-wave generator produces the voltage square wave of 50% duty ratio, and the frequency of square-wave generator is 120Hz, drives described liquid crystal 3 D grating, makes liquid crystal become opaque by transparent, thereby the right and left eyes sight line is isolated.Through accurate design, make left eye can only see left image, right eye can only be seen right image, like this, described stereo-picture shoulder to shoulder forms the stereo display of Glassless through grating; Described LCDs is common liquid crystals TV or LCD Panel.The present invention can be applied to a lot of technical fields of daily life, has promoted popularizing of Glassless stereo display technique greatly.
In sum, a kind of naked eye visible stereo display system disclosed by the invention and its implementation are compared with traditional stereo display technique, realized that the user need not wear anaglyph spectacles and just can watch stereo-picture, simultaneously, by implementing a kind of naked eye visible stereo display system provided by the invention and its implementation, improved the effect of Glassless stereo display, what also solved existing Glassless stereo display technique existence vertical concealed wire and little defective and the deficiency of the angle of visual field can occur when 3D shows, promoted popularizing of Glassless stereo display technique.
The content of more than introducing and describing only be the preferred embodiments of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. naked eye visible stereo display system, comprise that LCDs (410), screen show driver module (411) and video decode module (413), it is characterized in that, also comprise the liquid crystal 3 D grating (420), square-wave generator (421) and the three-dimensional driver module (412) that are positioned at LCDs (410) surface;
Described screen shows driver module (411) and is electrically connected on LCDs (410), drives the demonstration of view data on LCDs (410);
Described three-dimensional driver module (412) shows driver module (411) with screen and video decode module (413) is electrically connected, and the original image format conversion shoulder to shoulder that video decode module (413) is exported is the point and point pattern that is fit to stereo display;
The voltage square wave that described square-wave generator (421) produces particular duty cycle drives described liquid crystal 3 D grating (420), make the grating liquid crystal present opaque shape, the right and left eyes sight line is separated, original image shoulder to shoulder point and point stereo-picture is after treatment formed the stereo display of Glassless.
2. naked eye visible stereo display system according to claim 1 is characterized in that: described square-wave generator (421) is the 120Hz square-wave generator.
3. naked eye visible stereo display system according to claim 1 is characterized in that: described liquid crystal 3 D grating (420) is made of alternately square shape lcd segment and bright part.
4. naked eye visible stereo display system according to claim 1 is characterized in that: the voltage square wave of described particular duty cycle is the voltage square wave of 50% duty ratio.
5. naked eye visible stereo display system according to claim 1 is characterized in that: described LCDs (410) is common liquid crystals TV or LCD Panel.
6. naked eye visible stereo display system according to claim 1, it is characterized in that: described original stereo-picture shoulder to shoulder is when compound stereoscopic shows, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line then shows according to a left side about the right side, cycle arrangement, perhaps opposed alignment like this.
7. the implementation method of a naked eye visible stereo display system is characterized in that, may further comprise the steps:
S1, stick the liquid crystal 3 D grating on the surface of common 2D LCDs; Described liquid crystal 3 D grating is made of alternately lcd segment and bright part;
S2, will original stereo-picture shoulder to shoulder synthesize point and point stereo-picture by three-dimensional driver module;
The voltage square wave that S3, square-wave generator produce particular duty cycle drives described liquid crystal 3 D grating, makes the grating liquid crystal present opaque shape, and the right and left eyes sight line is separated, and described stereo-picture is shoulder to shoulder formed the stereo display of Glassless.
8. the implementation method of naked eye visible stereo display system according to claim 7, it is characterized in that: described liquid crystal 3 D grating is made of alternately square shape lcd segment and bright part.
9. the implementation method of naked eye visible stereo display system according to claim 7, it is characterized in that: described LCDs is common liquid crystals TV or LCD Panel.
10. the implementation method of naked eye visible stereo display system according to claim 7, it is characterized in that: described stereo-picture shoulder to shoulder is when compound stereoscopic shows, odd-numbered line according to about the point and point demonstration in the left and right sides, even number line then shows according to a left side about the right side, cycle arrangement, perhaps opposed alignment like this.
CN2009101092419A 2009-08-04 2009-08-04 Naked eye visual stereoscopic display system and realization method thereof Pending CN101990106A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208176A (en) * 2011-05-18 2011-10-05 中兴通讯股份有限公司 Three dimensional raster control device and system thereof
CN102215405A (en) * 2011-06-01 2011-10-12 深圳创维-Rgb电子有限公司 3D (three-dimensional) video signal compression coding-decoding method, device and system
WO2012079205A1 (en) * 2010-12-17 2012-06-21 湖南创图视维科技有限公司 Display system and method thereof
CN102650742A (en) * 2012-05-16 2012-08-29 天马微电子股份有限公司 Free three-dimensional display device and method
CN102681181A (en) * 2012-04-26 2012-09-19 庞维克 Nondestructive grating autostereoscopic display screen
CN104038726A (en) * 2014-06-26 2014-09-10 武汉恩倍思科技有限公司 Method for achieving naked-eye 3D video conference
WO2015139405A1 (en) * 2014-03-19 2015-09-24 京东方科技集团股份有限公司 Three-dimensional display system
CN106125374A (en) * 2016-08-30 2016-11-16 重庆卓美华视光电有限公司 For driving the driving plate of liquid crystal cell in bore hole 3D display module

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012079205A1 (en) * 2010-12-17 2012-06-21 湖南创图视维科技有限公司 Display system and method thereof
US9204139B2 (en) 2010-12-17 2015-12-01 Celvision Technologies Limited Display system and method thereof
CN102208176B (en) * 2011-05-18 2015-08-12 中兴通讯股份有限公司 A kind of three-dimensional grating control device and system
CN102208176A (en) * 2011-05-18 2011-10-05 中兴通讯股份有限公司 Three dimensional raster control device and system thereof
WO2012155454A1 (en) * 2011-05-18 2012-11-22 中兴通讯股份有限公司 3d grating control apparatus and system
CN102215405A (en) * 2011-06-01 2011-10-12 深圳创维-Rgb电子有限公司 3D (three-dimensional) video signal compression coding-decoding method, device and system
CN102215405B (en) * 2011-06-01 2013-10-23 深圳创维-Rgb电子有限公司 3D (three-dimensional) video signal compression coding-decoding method, device and system
CN102681181A (en) * 2012-04-26 2012-09-19 庞维克 Nondestructive grating autostereoscopic display screen
CN102650742A (en) * 2012-05-16 2012-08-29 天马微电子股份有限公司 Free three-dimensional display device and method
WO2015139405A1 (en) * 2014-03-19 2015-09-24 京东方科技集团股份有限公司 Three-dimensional display system
US9720247B2 (en) 2014-03-19 2017-08-01 Boe Technology Group Co., Ltd. Three-dimensional display system
CN104038726A (en) * 2014-06-26 2014-09-10 武汉恩倍思科技有限公司 Method for achieving naked-eye 3D video conference
CN106125374A (en) * 2016-08-30 2016-11-16 重庆卓美华视光电有限公司 For driving the driving plate of liquid crystal cell in bore hole 3D display module
CN106125374B (en) * 2016-08-30 2019-12-03 广州市惠迪电子科技有限公司 For driving the driving plate of liquid crystal cell in naked eye 3D display mould group

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Application publication date: 20110323