CN102033324A - Method and system for adjusting visual range of grating barrier type 3D display system - Google Patents
Method and system for adjusting visual range of grating barrier type 3D display system Download PDFInfo
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Abstract
The invention is applied in the field of 3D display, and provides a method for adjusting the visual range of a grating barrier type 3D display system. The method comprises the following steps of: positioning a watcher to obtain positioning information; and adjusting the light transmission state of a grating barrier according to the positioning information, and transmitting left-eye images and right-eye images to left and right eyes of the watcher respectively. In the method, the moving watcher is positioned, and the light transmission state of the grating barrier is changed in real time according to the positioning information, so that the 3D display system can realize an optimal display state at the position of the moving watcher, the visual range of the 3D display system is expanded and close restraints in the watching position are eliminated.
Description
Technical field
The invention belongs to 3D and show the field, relate in particular to a kind of control method and system of grating barrier-type 3D display system visual range.
Background technology
The development of 3D display technique has been taken people to the three-dimensional world, and this technology mainly is to utilize right and left eyes to watch object to obtain scene difference, and by obtaining the technology of solid figure after the brain processing, makes left eye only see left-eye view, and right eye is only seen right-eye view.Bore hole 3D technology commonly used at present need not be worn the 3D glasses and just can see stereopsis, is the developing direction of stereo display technique.Bore hole 3D display system has the lens pillar formula, grating barrier-type and timesharing display type etc.Wherein, the grating barrier-type is to control light going direction at vertical paliform optical barrier (be called for short " grating barrier ") that the screen surface setting is called " disparity barrier ", accepts different images for two about allowing, and produces parallax to reach the stereo display effect.The material of grating is varied, but has the liquid crystal film of employing switch to serve as the grating barrier at present, opens the liquid crystal film function when needing 3D to show, forms the 3D figure, and closing function shows the 2D figure as common TV when not required.Yet also there are some deficiencies in present grating barrier-type 3D display technique, and is limited as viewing distance, angle and direction, must could obtain 3D effect preferably in certain location.Please in conjunction with the accompanying drawings 1, per two neighbors show left-eye view and right-eye view information respectively on the display screen, behind the grating barrier of light through the place ahead of pixel emission, reason owing to the beam projecting angle, make beholder's left eye can only receive the light of left-eye view, right eye can only receive the light of right-eye view, and the images of left and right eyes view is handled through brain and formed stereo-picture.As can be seen from the figure, this moment, best viewing location had only illustrated position, if the beholder shift position, the light of images of left and right eyes view can not accurately be injected corresponding images of left and right eyes, the picture quality of then seeing will variation, even does not see stereoeffect but ghost image.Make that like this visual range of display system is minimum, limited user's the degree of freedom of watching, give uncomfortable sense, also limited applying of this technology.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of control method of grating barrier-type 3D display system visual range, is intended to solve the existing little problem of grating barrier-type 3D display system visual range.
The embodiment of the invention is achieved in that a kind of control method of grating barrier-type 3D display system visual range, and described method comprises the steps:
Position to the beholder place positions, and obtains locating information;
Regulate the logical light state of grating barrier according to described locating information, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
Another purpose of the embodiment of the invention is to provide a kind of regulating system of grating barrier-type 3D display system visual range, and described regulating system comprises:
Locating device is used for the position at beholder place is positioned, and obtains locating information;
Regulating device is used for regulating according to described locating information the logical light state of grating barrier, left-eye image and eye image is sent to beholder's left eye and right eye respectively.
The embodiment of the invention positions the position that the beholder moves, logical light state according to locating information real time altering grating barrier, make the 3D display system to form the best image state again in the position that the beholder moves, enlarged the visual range of 3D display system, removed strictness restriction viewing location.
Description of drawings
Fig. 1 is the schematic top plan view of the displaying principle of existing grating barrier-type 3D display system;
Fig. 2 is the process flow diagram of the control method of the grating barrier-type 3D display system visual range that provides of first embodiment of the invention;
Fig. 3 is the process flow diagram of the control method of the grating barrier-type 3D display system visual range that provides of second embodiment of the invention;
Fig. 4 is the process flow diagram of the control method of the grating barrier-type 3D display system visual range that provides of third embodiment of the invention;
Fig. 5 is the schematic diagram () of the logical light state of the adjusting grating barrier that provides of third embodiment of the invention;
Fig. 6 is the schematic diagram (two) of the logical light state of the adjusting grating barrier that provides of third embodiment of the invention;
Fig. 7 is the regulating system structural representation of the grating barrier-type 3D display system visual range that provides of the present invention the 5th, six embodiment;
Fig. 8 is the regulating system structural representation of the grating barrier-type 3D display system visual range that provides of eighth embodiment of the 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 embodiment of the invention is by obtaining beholder's positional information in real time, and adjusts the logical light state of grating barrier in real time according to this information, and the best image state that makes the 3D display system changes with the change of viewing location, has enlarged the visual range of 3D display system.
The embodiment of the invention provides a kind of control method of grating barrier-type 3D display system visual range, and this method comprises the steps:
Position to the beholder place positions, and obtains locating information;
Regulate the logical light state of grating barrier according to locating information, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
The embodiment of the invention also provides a kind of regulating system of grating barrier-type 3D display system visual range, and this regulating system comprises:
Locating device is used for the position at beholder place is positioned, and obtains locating information;
Regulating device is used for regulating according to locating information the logical light state of grating barrier, left-eye image and eye image is sent to beholder's left eye and right eye respectively.
The embodiment of the invention positions the position that the beholder moves, logical light state according to locating information real time altering grating barrier, make the 3D display system to form the best image state again in the position that the beholder moves, enlarged the visual range of 3D display system, removed strictness restriction viewing location.
Below in conjunction with specific embodiment specific implementation of the present invention is described in detail:
Embodiment one:
Fig. 2 shows the process flow diagram of the control method of the grating barrier-type 3D display system visual range that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with present embodiment.
This method mainly comprises the steps:
In step S201, the position at beholder place is positioned, obtain locating information;
In step S202, regulate the logical light state of grating barrier according to described locating information, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
When beholder's eyes departed from position shown in Figure 1, the light that display screen matrix penetrates can not accurately be injected corresponding images of left and right eyes, watched this moment less than 3D effect clearly.In the present embodiment, logical light state mainly refers to the distribution situation of logical light of grating and obstructed optical position, when the beholder shift position, at first the residing position of beholder is accurately located, obtain located in connection information such as its locus, then according to this locating information, change the logical light of grating barrier (normally liquid crystal film) and the position of obstructed light, reach another kind of show state, make the light of left-eye image only inject left eye once more, the light of eye image is only injected right eye.
Present embodiment is according to the logical light state of the position real time altering grating barrier at beholder place, make the beholder when the shift position, still can see 3D rendering clearly, eliminated of the strictness restriction of traditional raster barrier-type 3D display system, enlarged the visual range of display system viewing location.
Embodiment two:
Fig. 3 shows the process flow diagram of the control method of the grating barrier-type 3D display system visual range that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with present embodiment.
In embodiments of the present invention, specifically can locate beholder's position by the following method, and obtain locating information.
In step S301, the signal that send the position at employing multipath reception beholder place;
In embodiments of the present invention, at first set a signal launching site, set a plurality of signal acceptance points at the display end of 3D system, the signal that multipath reception signal launching site sends in the beholder position.
In step S302, determine beholder's location in space according to the mistiming that receives each road signal, obtain locating information.
After obtaining locating information, enter step S303, regulate the logical light state of grating barrier according to this locating information, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
In embodiments of the present invention, system can be converted into distance according to the mistiming of these several signals, orients the locus of signal launching site.Further calculate the locus at human eye place again according to the relative position of signal launching site and human eye.Wherein, the quantity of this acceptance point can be 3 or more.
In embodiments of the present invention, can send signal to display end at signal launching site signalization transmitter, this transmitter can be worn by the beholder.This signal projector specifically can be a ultrasonic transmitter, while emitting radio wave and ultrasound wave, and radiowave is used to provide zero-time, and it is poor that ultrasound wave is used for Measuring Time.Accordingly, can be at signal acceptance point signalization receiver, this receiver can be installed in the position that does not influence demonstration on the display screen.
In embodiments of the present invention, the signal launching site also can not be provided with any signal projector spare, but is sounded by beholder itself, and to acceptance point, can be provided with sound receiver this moment at different acceptance points to sound wave by air transfer.
Embodiment three:
Fig. 4 shows the process flow diagram of the control method of the grating barrier-type 3D display system visual range that third embodiment of the invention provides, schematic diagram () and (two) that the adjusting grating barrier that Fig. 5 and Fig. 6 show third embodiment of the invention to be provided leads to light state, for convenience of explanation, only show the part relevant with present embodiment.
In embodiments of the present invention, the locating information that obtains after the viewing location of system location can be the relative position information of beholder with respect to initial position.According to relative position information, can calculate the position that leads to light and obstructed light on the grating barrier, and with this foundation as the logical light state of change grating.A kind of concrete implementation below is provided:
In step S401, the signal that send the position at employing multipath reception beholder place;
In step S402, determine beholder's location in space according to the mistiming that receives each road signal, obtain the relative position information of the position at beholder place with respect to initial position;
In step S403,, calculate the displacement of the logical optical position of grating barrier with respect to original logical optical position according to this relative position information;
In step S404, regulate the logical optical position of grating barrier according to this displacement, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
In embodiments of the present invention, relative position information can be left and right displacement amount and/or the front and back displacement of beholder with respect to initial position, the left and right displacement amount is meant the distance that beholder's eyes move to the left or to the right, and the front and back displacement is meant that beholder's eyes are along the displacement perpendicular to the display screen surface direction.
A kind of processing mode of determining logical light state according to displacement is provided below:
Please in conjunction with the accompanying drawings 5, as beholder during at initial position a place, the c of grating barrier, d position are in logical light state, and can provide best viewing effect this moment.When the beholder moves horizontally a segment distance y from position a, during the b of in-position, logical optical position c, the d of grating barrier needs to change equally, and the beholder just can see the 3D rendering of best results, by similar triangle theory, distance c 1, d1 that logical optical position c, d move horizontally are identical.The width y1 of display screen and display screen and grating barrier be known quantity apart from x, the distance of beholder and display screen is that x1 and displacement y obtain by positioning step, so initial logical optical position c, the distance c 1=d1=yx/x1 that d moves horizontally, be all mobile c1 distance of each grating, can reach best viewing effect.
Further combined with accompanying drawing 6, when the beholder when initial position a moves forward distance y in-position b, logical optical position c displacement c1, logical optical position d displacement d1, this moment, c1 and d1 were unequal, then in this case, the displacement of each logical optical position is all unequal, need to calculate the displacement of each logical optical position this moment, wherein, the distance apart from e, beholder and display screen of a position and screen edge is that x1 and displacement y can obtain by positioning step, so distance c 1=y (y1-e)/x1 of moving of position c.The computing method of d1 in like manner, each grating moves corresponding distance so, can reach best viewing effect.
The grating that distributes for vertical direction when the beholder is being parallel to merely when moving up and down on the grating orientation, can not influence viewing effect, does not need to adjust the grating distribution this moment.
In embodiments of the present invention, this initial position a can be beholder's residing best viewing location before moving; It also can be the best viewing location that system initialization is provided with.When a point was initialization the best viewing location, no matter the beholder took place to move several times, and computing is carried out at this fixing position a in the position after system all will move automatically.
Embodiment four:
In embodiments of the present invention, in the process of the logical light state of grating being regulated according to the residing position of beholder, relevant data handling procedure can be carried out in real time, promptly calculates the displacement of the logical optical position of grating barrier according to the method for the foregoing description according to beholder's position.It also can be the grating barrier distribution parameter that precomputes corresponding space each point, these parameters are made in the storer that form deposits display system in, during actual the use, the space viewing location and this form that navigate to are compared, read relevant parameter, again according to the logical light state of this parameter change grating barrier.This parameter specifically can be to watch the corresponding data of a position and the logical optical position change amount of grating barrier.In storer, pre-deposit above-mentioned parameter, can significantly reduce the operand of system, make the switch speed of 3D system show state faster.
Embodiment five:
Fig. 7 shows the regulating system structural representation of the grating barrier-type 3D display system visual range that fifth embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with present embodiment.
Grating barrier-type 3D display system comprises display screen and is positioned at the disparity barrier (grating barrier) of display screen surface, this regulating system comprises locating device 1 and regulating device 2, system positions by the position at 1 pair of beholder place of locating device, obtains locating information; Regulate the logical light state of grating barrier by regulating device 2 according to locating information then, left-eye image and eye image are sent to beholder's left eye and right eye respectively, form the best image state in the beholder position.
In embodiments of the present invention, the logical light state of grating barrier mainly refers to the logical light of grating barrier and the distribution of obstructed optical position, when the beholder shift position, changes logical optical position thereupon, make left eye ray still only inject left eye, right eye ray is still only injected right eye.Present embodiment determines that according to locating information grating leads to the concrete amount of movement of optical position, has eliminated the strictness restriction of 3D display system to viewing location like this, has enlarged visual range.
Embodiment six:
In embodiments of the present invention, locating device can comprise signal receiver 11 and position route marker 12, signal receiver 11 has a plurality of, be specifically as follows 3 or more, be installed in the position that does not influence demonstration on the display screen respectively, a plurality of signal receivers 11 all are transferred to signal position route marker 12, and position route marker 12 is determined the locating information such as locus at beholder place according to the mistiming of receiver received signal.Accordingly, can send signal to signal receiver 11 at viewing location signalization transmitter 3; Also any signal projector spare can be set, but be sounded by beholder itself, the signal receiver 11 of this moment should be the device that can respond to voice signal.
Embodiment seven:
Fig. 8 shows the regulating system structural representation of the grating barrier-type 3D display system visual range that eighth embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with present embodiment.
In embodiments of the present invention, the locating information of locating device 2 acquisitions can be the relative position information that the beholder produces with respect to initial position.This initial position specifically can be the best viewing location that the display system initialization is provided with; It also can be the best viewing location before the beholder moves.This relative position information can comprise the displacement of horizontal direction, perhaps the displacement of fore-and-aft direction, the perhaps displacement of level and former and later two directions.For existing common grating barrier-type 3D display system, its grating orientation is vertical, and therefore being parallel to not moving up and down of grating orientation can influence viewing effect, and therefore the displacement information that moves up and down can not gathered.
Regulating device 2 can be determined the logical light state of grating barrier according to this relative position information, this regulating device 2 specifically comprises displacement route marker 21 and grating adjustor 22, displacement route marker 21 calculates the displacement of the logical optical position of grating barrier with respect to original logical optical position according to relative position information; Grating adjustor 22 is regulated the logical optical position of grating barrier according to displacement, and left-eye image and eye image are sent to the left eye and the right eye of human body respectively, forms best show state in the position at beholder place.Concrete data processing method repeats no more as described in the above-mentioned embodiment three.
Embodiment eight:
Further combined with accompanying drawing 8, in embodiments of the present invention, to regulate according to locating information in the step of the logical light state of grating, relevant data handling procedure can be carried out in real time, and this moment, regulating device 2 was carried out the foregoing description three described operations in real time.It also can be the grating barrier distribution parameter that precomputes corresponding space each point, these parameters are made in the storer 4 that form deposits display system in, at this moment, regulating device 2 is responsible for locating information and this form are compared, read relevant parameter, again according to the logical light state of this parameter change grating barrier.In storer, pre-deposit above-mentioned parameter, can significantly reduce the operand of system, make the switch speed of 3D system show state faster.
The embodiment of the invention positions the position that the beholder moves, logical light state according to locating information real time altering grating barrier, make the 3D display system to form the best image state again in the position that the beholder moves, enlarged the visual range of 3D display system, removed strictness restriction viewing location.Accurately locate by the signal that the multipath reception viewing location is sent, and, can accurately regulate the logical light state of grating barrier according to the relative shift of beholder and initial position.In storer, pre-deposit the amount of movement of the logical optical position of grating barrier and the corresponding supplemental characteristic of viewing location, can significantly reduce the operand of system, make that the display system switch speed is faster.
The above only is preferred embodiment 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 and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the control method of a grating barrier-type 3D display system visual range is characterized in that described method comprises the steps:
Position to the beholder place positions, and obtains locating information;
Regulate the logical light state of grating barrier according to described locating information, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
2. the method for claim 1 is characterized in that, described position to the beholder place positions, and the step that obtains locating information is specially:
The signal that send the position at employing multipath reception beholder place;
Determine beholder's location in space according to the mistiming that receives each road signal, obtain described locating information.
3. the method for claim 1 is characterized in that, described locating information comprises the relative position information of the position at beholder place with respect to initial position.
4. method as claimed in claim 3 is characterized in that, described relative position information comprises left and right displacement amount and/or front and back displacement.
5. method as claimed in claim 3 is characterized in that, described initial position is the viewing location that described 3D display system initialization is provided with.
6. as claim 3,4 or 5 described methods, it is characterized in that, describedly regulate the logical light state of grating barrier according to described locating information, with left-eye image with eye image is sent to beholder's left eye respectively and the step of right eye is specially:
According to described relative position information, calculate the displacement of the logical optical position of described grating barrier with respect to original logical optical position;
Regulate the logical optical position of described grating barrier according to described displacement, left-eye image and eye image are sent to beholder's left eye and right eye respectively.
7. the regulating system of a grating barrier-type 3D display system visual range is characterized in that described regulating system comprises:
Locating device is used for the position at beholder place is positioned, and obtains locating information;
Regulating device is used for regulating according to described locating information the logical light state of grating barrier, left-eye image and eye image is sent to beholder's left eye and right eye respectively.
8. system as claimed in claim 7 is characterized in that described locating device comprises a plurality of signal receivers, is used for receiving respectively the signal that send the beholder position; And
The position route marker is used for determining according to the mistiming of a plurality of signal receiver received signals the locus at beholder place, obtains locating information.
9. as claim 7 or 8 described systems, it is characterized in that described locating information comprises the relative position information of the position at beholder place with respect to initial position.
10. system as claimed in claim 9 is characterized in that described regulating device comprises the displacement route marker, is used for according to described relative position information, calculates the displacement of the logical optical position of described grating barrier with respect to original logical optical position; And
Grating adjustor is used for regulating according to described displacement the logical optical position of described grating barrier, left-eye image and eye image is sent to beholder's left eye and right eye respectively.
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Application publication date: 20110427 |