CN103246069A - Stereo-display device - Google Patents
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- CN103246069A CN103246069A CN2013101476453A CN201310147645A CN103246069A CN 103246069 A CN103246069 A CN 103246069A CN 2013101476453 A CN2013101476453 A CN 2013101476453A CN 201310147645 A CN201310147645 A CN 201310147645A CN 103246069 A CN103246069 A CN 103246069A
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Abstract
A stereo-display device includes a display panel, a first controllable optical grating array, a second controllable optical grating array and a control unit, wherein the display panel is used for dividing the stereo image to be displayed into a first image and a second image and displaying the first image and the second image respectively; a first part of the first image is a half pixel column of a left image, and a second part is a half pixel column of a right image; a first part of the second image is the other half pixel column of the right image, and a second part is the other half pixel column of the left image; the first controllable optical grating array is used for guiding the first part/the second part of the displayed image to the left eye/the right eye of a viewer in operation; the second controllable optical grating array is used for guiding the second part/the first part of the displayed image to the left eye/the right eye of the viewer in operation; and the control unit is used for controlling the first controllable optical grating array to work and stopping the work of the second controllable optical grating array when the first image is displayed, and controlling the second controllable optical grating array to work and stopping the work of the first controllable optical grating array when the second image is displayed. The stereo-display device can improve resolution ratio of the stereo-picture during display.
Description
Technical field
This area relates to photoelectric field, relates in particular to a kind of 3 d display device.
Background technology
Slit grating formula three-dimensional display based on binocular parallax and grating beam splitting principle is the mainstream technology of bore hole 3D (three-dimensional) three-dimensional display, and it is assembled by two dimensional surface display and slit grating.Slit grating formula three-dimensional display has good stereo display characteristic, but because the right and left eyes disparity map is alternate being presented on the same display, the stereo display resolution that causes it is at most half that corresponding 2D (two dimension) shows, so stereoscopic images displayed can not be applicable to the occasion of high resolving power demand.
Summary of the invention
Resolution when the technical problem to be solved in the present invention is the demonstration that how to improve stereo-picture.
In order to address the above problem, the invention provides a kind of 3 d display device, comprising: module backlight, display panel:
Described display panel is used for the stereo-picture by the left image with parallax and right image construction to be shown is divided into first image and second image, and shows respectively in two adjacent moment; Described first image and second image all comprise first and second portion, the first of described first image, the position of second portion in first image, identical with first, the position of second portion in second image of described second image respectively; The first of described first image is half pixel column of left image, and second portion is half pixel column of right image; The first of described second image is second half pixel column of described right image, and second portion is second half pixel column of described left image;
Described 3 d display device also comprises:
The first controllable light grid array is used for when work the guiding beholder of the first left eye with the shown image of display panel, the second portion beholder's right eye that leads;
The second controllable light grid array is used for when work the second portion guiding beholder left eye with the shown image of display panel, first's beholder's right eye that leads;
Control module is used for controlling the first controllable light grid array work, and stopping the second controllable light grid array work when described display panel shows first image; When described display panel shows second image, control the second controllable light grid array work, and stop the first controllable light grid array work;
The refresh rate of described display panel be human eye can be imperceptible more than 2 times or 2 times of the highest display refresh rates during image flicker.
Further, the first controllable light grid array is centered close to perpendicular to described display panel and by on the axis at this display panel center between module backlight and display panel, and raster unit is arranged along the line direction of described display panel;
The distance of the first controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
Further, the second controllable light grid array is positioned at the demonstration side of display panel, is centered close to perpendicular to described display panel and by on the axis at this display panel center, and raster unit is arranged along the line direction of described display panel;
The distance of the second controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
Further, arbitrary raster unit on the first controllable light grid array and on the second controllable light grid array with the difference DELTA x of the center of the nearest arbitrary raster unit of this raster unit on the line direction of display panel is: Δ x=M * Δ Lp;
Wherein, M is 0 or positive integer, and Δ Lp is pitch poor of the pitch of the first controllable light grid array and the second controllable light grid array.
Further, the second controllable light grid array is between module backlight and display panel, be centered close to perpendicular to described display panel and with the center of display panel be on the axis of the second controllable light grid array pitch 1/2 in the distance on the line direction of this display panel, raster unit is arranged along the line direction of described display panel;
The distance of the second controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
Further, the first controllable light grid array is positioned at the demonstration side of display panel, be centered close to perpendicular to described display panel and with the center of display panel be on the axis of the first controllable light grid array pitch 1/2 in the distance on the line direction of this display panel, raster unit is arranged along the line direction of described display panel;
The distance of the first controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
Further, arbitrary raster unit on the first controllable light grid array and on the second controllable light grid array with the difference DELTA x of the center of the nearest arbitrary raster unit of this raster unit on the line direction of display panel is:
Wherein, N is 0 or positive integer, and Δ Lp is pitch poor of the pitch of the second controllable light grid array and the first controllable light grid array.
Further, the first controllable light grid array is between module backlight and display panel, and the second controllable light grid array is positioned at the demonstration side of display panel;
Perhaps
The second controllable light grid array is between module backlight and display panel, and the first controllable light grid array is positioned at the demonstration side of display panel.
Further, described first is the first half pixel column of each row figure in the cycle, and described second portion is the later half pixel column of each row figure in the cycle;
The first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The first half pixel of described first image in each row figure cycle classified the first half pixel column of left image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of right image respective row figure in the cycle as;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The first half pixel of described second image in each row figure cycle classified the first half pixel column of right image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of left image respective row figure in the cycle as.
Further, described first is the odd column pixel, and described second portion is the even column pixel;
The first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The odd column pixel of described first image is the odd column pixel of left image, and the even column pixel is the even column pixel of right image;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The odd column pixel of described second image is the odd column pixel of right image, and the even column pixel is the even column pixel of left image.
Resolution when at least one embodiment of the present invention can improve the stereo-picture demonstration; A preferred embodiment of the present invention can show stereo-picture with full resolution, and control is flexible and implementation is strong; Another preferred embodiment of the present invention has provided position relation concrete between grating array and the display panel.
Description of drawings
Fig. 1 is the structural representation of the 3 d display device of embodiment two;
Fig. 2 a is that the position of controllable light grid array 301 and controllable light grid array 303 and display panel 302 concerns synoptic diagram in first kind of alternatives of embodiment two;
Fig. 2 b is that the position of controllable light grid array 301 and controllable light grid array 303 and display panel 302 concerns synoptic diagram in second kind of alternatives of embodiment two;
Fig. 3 a is t1 index path constantly among the embodiment two;
Fig. 3 b is t2 index path constantly among the embodiment two;
Fig. 4 is the structural representation of embodiment three;
Fig. 5 is the structural representation of embodiment four.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
Need to prove that if do not conflict, each feature among the embodiment of the invention and the embodiment can mutually combine, all within protection scope of the present invention.In addition, though there is shown logical order in flow process, in some cases, can carry out step shown or that describe with the order that is different from herein.
Embodiment one, a kind of 3 d display device comprise: module backlight;
Display panel is used for the stereo-picture by the left image with parallax and right image construction to be shown is divided into first image and second image, and shows respectively in two adjacent moment; Wherein, described first image and second image comprise first and second portion, the first of described first image, the position of second portion in first image, identical with first, the position of second portion in second image of described second image respectively; The first of described first image is half pixel column of left image, and second portion is half pixel column of right image; The first of described second image is second half pixel column of right image, and second portion is second half pixel column of left image;
The first controllable light grid array is used for when work the guiding beholder of the first left eye with the shown image of display panel, the second portion beholder's right eye that leads;
The second controllable light grid array is used for when work the second portion guiding beholder left eye with the shown image of display panel, first's beholder's right eye that leads;
Control module is used for controlling the first controllable light grid array work, and stopping the second controllable light grid array work when described display panel shows first image; When described display panel shows second image, control the second controllable light grid array work, and stop the first controllable light grid array work;
The refresh rate of described display panel be human eye can be imperceptible more than 2 times or 2 times of the highest display refresh rates during image flicker.
In the present embodiment, when showing first image, the beholder can see first, second part of first image with images of left and right eyes respectively by the first controllable light grid array, just sees half pixel column of left and right image respectively.When showing second image, the beholder by the second controllable light grid array can with images of left and right eyes see respectively second image second, first, just see second half pixel column of left and right image respectively.As seen, after showing first, second image, the beholder can see whole pixels of left and right image, has therefore improved the resolution when stereo-picture shows.
If the pixel column of left and right image adds up to odd number, then the pixel column number that comprises of in first, the second portion rounds downwards divided by the merchant after 2 for this sum, and another is for rounding up.Such as ading up to 31 row, then can be that first is 16 row, second portion is 15 row; Can first be 15 row also, second portion be 16 row.
In the present embodiment, the refresh rate of described display panel can but be not limited to 120Hz (showed 120 times in namely 1 second, and when every width of cloth stereo-picture all is divided into first image and second image and shows, namely be equivalent to show in 1 second 60 width of cloth stereo-pictures); First, second controllable light grid array is along with the demonstration of first image, second image takes turns to operate, so the switching frequency of first, second controllable light grid array equals display panel refresh rate: 120Hz, and this moment, human eye can be experienced stereo-picture.According to the applied environment difference, human eye can be imperceptible the highest display refresh rates during image flicker can be different, correspondingly, the scope of the refresh rate of described display panel also can be different.
In the present embodiment, described display panel shows that first image of a stereo-picture and the sequencing of second image do not limit; For convenience of description, the moment that shows first image is called t1 constantly, shows that the moment of second image is called t2 constantly; T1 is constantly adjacent with the t2 moment, before being engraved in the time of can t1, before being engraved in the time of also can t2.
In the present embodiment, the mode of control controllable light grid array work can add driving voltage for giving the controllable light grid array, and this moment, the controllable light grid array was to the incident light light splitting; When not adding driving voltage, the controllable light grid array is not worked, and incident light all passes through.In the time of also can selecting to add driving voltage, incident light all passes through; When not adding driving voltage, the work of controllable light grid array is to the incident light light splitting.
When first, second controllable light grid array was not all worked, be two dimension (2D) display mode this moment, and namely the 3 d display device of present embodiment can be realized the handoff functionality of 2D/3D.
In an embodiment of the present embodiment, described first is the odd column pixel, and described second portion is the even column pixel.
Correspondingly, the first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The odd column pixel of described first image is the odd column pixel of left image, and the even column pixel is the even column pixel of right image;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The odd column pixel of described second image is the odd column pixel of right image, and the even column pixel is the even column pixel of left image.
In this embodiment, when showing first image, the first controllable light grid array is with the odd column pixel guiding beholder left eye of first image, even column pixel guiding beholder right eye; This moment, the beholder can see the odd column pixel of left image and the even column pixel of right image.When showing second image, the second controllable light grid array is with the even column pixel guiding beholder left eye of second image, odd column pixel guiding beholder right eye; This moment, the beholder can see the even column pixel of left image and the odd column pixel of right image.As seen, after showing first, second image, the beholder can see whole pixels of left and right image, has therefore realized the full resolution demonstration.
In the another kind of embodiment of present embodiment, described first is the first half pixel column of each row figure in the cycle, and described second portion is the later half pixel column of each row figure in the cycle; When comprising 6 row pixels such as row figure cycle of hypothesis, the 1st～3 row pixel in each row figure cycle is first, and the 4th～6 in each row figure cycle classified second portion as.First, second image, left and right image were formed by the row figure cycle of a plurality of identical sizes, and each row schemes the pixel column number that the cycle comprises and can arrange as required; When each row figure cycle comprised 2 row pixels, what obtain was exactly to go up a kind of embodiment.
The described row figure cycle refers to the width of pixel corresponding with raster pitch in the image, can be the ordered series of numbers pixel.
Correspondingly, the first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The first half pixel of described first image in each row figure cycle classified the first half pixel column of left image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of right image respective row figure in the cycle as;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The first half pixel of described second image in each row figure cycle classified the first half pixel column of right image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of left image respective row figure in the cycle as.
Classify the first half pixel column of left image in the 3rd row figure cycle as such as the first half pixel of first image in the 3rd row figure cycle; The later half pixel of second image in the 5th row figure cycle classified the later half pixel column of left image in the 5th row figure cycle as for another example.
In this embodiment, when showing first image, the first controllable light grid array is respectively arranged the first half pixel column guiding beholder left eye of figure in the cycle with first image, and each arranges the later half pixel column guiding beholder right eye of figure in the cycle; This moment, the beholder can see the first half pixel column of left image in each row figure cycle and the later half pixel column of right image.When showing second image, the second controllable light grid array is respectively arranged the later half pixel column guiding beholder left eye of figure in the cycle with second image, and each arranges the first half pixel column guiding beholder right eye of figure in the cycle; This moment, the beholder can see the later half pixel column of left image in each row figure cycle and the first half pixel column of right image.As seen, after showing first, second image, the beholder can see whole pixels of left and right image, has therefore improved the resolution when stereo-picture shows.
More than in two kinds of embodiments, the pixel column of left and right image each row figure cycle in the first/the second image has symmetry; In other embodiments, the pixel column of left and right image also can be taked asymmetrical arrangement mode in the first/the second image, the resolution in the time of equally can improving the stereo-picture demonstration.
Embodiment two, and a kind of 3 d display device as shown in Figure 1, comprises along optical propagation direction tactic: module 300 backlight, rearmounted controllable light grid array 301, display panel 302, preposition controllable light grid array 303; Rearmounted controllable light grid array 301 is between module 300 backlight and display panel 302, and preposition controllable light grid array 303 is positioned at the demonstration side of display panel 302, namely between display panel 302 and beholder.Display panel 302 comprises the picture element matrix that is formed by main pixel 3020, and the size of inferior Pixel Dimensions is designated as t.Be convenient among Fig. 1, the size of exaggerative drawn controllable light grid array 301, controllable light grid array 303 and pixel.Along the line direction of display panel 302, controllable light grid array 301, controllable light grid array 303 are alternately arranged.
Present embodiment describes for example with first kind of embodiment (being that described first is the odd column pixel, the embodiment when described second portion is the even column pixel) of enumerating among the embodiment one.
For each stereo-picture to be shown, described display panel 302 is used for showing respectively two adjacent moment the different image combination of a stereo-picture, shows constantly that at t1 the even column image of odd column and right image of the left image of this stereo-picture makes up (i.e. first image); Show the odd column image combination (i.e. second image) of the even column of left image and the right image of this stereo-picture constantly at t2.Be followed successively by stereo-picture 1, stereo-picture 2, stereo-picture 3 such as stereo-picture to be shown, suppose that then display panel 302 will show first image of stereo-picture 1, second image of stereo-picture 1, first image of stereo-picture 2, second image of stereo-picture 2, first image of stereo-picture 3, second image of stereo-picture 3 successively according to the order that shows second image behind elder generation's demonstration first image.
In the present embodiment, described rearmounted controllable light grid array 301, preposition controllable light grid array 303 form grating array adding under the driving voltage, and incident light is played the branch light action, are not adding under the driving voltage condition, and incident light all passes through, and does not play the branch light action.Certainly, in the time of also can selecting to add driving voltage when specifically implementing, incident light all passes through; When not adding driving voltage, to the incident light light splitting.Controllable light grating array with this function is shown liquid crystal slit grating array, liquid crystal lens (including but not limited to spherical lens, non-spherical lens, cylindrical lens, compound lens, GRIN Lens, Fresnel Lenses) grating array or other have grating or the device of identical function.
In the present embodiment, visual persistence according to human eye, the refresh rate of display panel 302 can be set to human eye can be imperceptible more than 2 times or 2 times of the highest display refresh rates during image flicker, for example: the refresh rate of display panel 302 can (show 120 times for 120Hz in namely 1 second, when every width of cloth stereo-picture all is divided into first image and the demonstration of second image, namely be equivalent to 1 second demonstration 60 width of cloth stereo-picture); Rearmounted controllable light grid array 301, preposition controllable light grid array 303 are to drive in turn along with the demonstration of first image, second image, therefore the switching frequency of rearmounted controllable light grid array 301, preposition controllable light grid array 303 equals display panel 302 refresh rates: 120Hz, and this moment, human eye can be experienced stereo-picture.
Can be with any the controllable light grid array in described rearmounted controllable light grid array 301 and the described preposition controllable light grid array 303 as the first controllable light grid array among the embodiment one, another is as the second controllable light grid array among the embodiment one.
In an alternatives, described rearmounted controllable light grid array 301 is the first controllable light grid array, and described preposition controllable light grid array 303 is the second controllable light grid array; At t1 constantly, described preposition controllable light grid array 303 does not add driving voltage, described rearmounted controllable light grid array 301 adds driving voltage, rearmounted controllable light grid array 301 is directed to beholder's left eye with the odd column image light of the left image that described display panel 302 shows, and the even column image light of the right image that described display panel 302 is shown is directed to beholder's right eye; At t2 constantly, described rearmounted controllable light grid array 301 does not add driving voltage, described preposition controllable light grid array 303 adds driving voltage, preposition controllable light grid array 303 is directed to beholder's left eye with the even column image light of the left image that described display panel 302 shows, the odd column image light of the right image that described display panel 302 is shown is directed to beholder's right eye.
In another alternatives, described rearmounted controllable light grid array 301 is the second controllable light grid array, and described preposition controllable light grid array 303 is the first controllable light grid array; How the controllable light grid array that as for when which controllable light grid array is added driving voltage and added driving voltage carries out light splitting to the image that shows can repeat no more here with reference to a last alternatives.
With Fig. 2 a and Fig. 2 b the location diagram between rearmounted controllable light grid array 301, display panel 302 and the preposition controllable light grid array 303 in above-mentioned two kinds of alternativess is described respectively below; For unlikely causing obscured, the controllable light grid array does not draw among Fig. 2 a, Fig. 2 b.For sake of convenience, make following agreement: at first set up as Fig. 2 a, coordinate system shown in Fig. 2 b, be oriented to the X-axis positive dirction among the figure to the right, be directed upwards towards and be Y-axis positive dirction (that is display panel 302 points to the direction that shows side), perpendicular to Fig. 2 a, outside Fig. 2 b and the sensing figure or in the figure is Z axle positive dirction (not shown), true origin O is positioned at the center of display panel 302, distance between the right and left eyes is that interpupillary distance is represented with E, gets E=65mm usually, and obviously left eye coordinates is (32.5, D, 0), the right eye coordinate is (32.5, D, 0), D is that beholder's eyes are apart from the distance of display panel.
First kind of alternatives is shown in Fig. 2 a, and a point is the position at the center of preposition controllable light grid array 303, and coordinate is designated as (0, S
2, 0), raster unit is arranged along the line direction of described display panel, and pitch is designated as LP
2Be that a point is positioned at perpendicular on described display panel 302 and the axis by these display panel 302 centers (being true origin), with the distance of display panel be S2.The b point is the position of rearmounted controllable light grid array 301, coordinate be designated as (0 ,-S
1, 0), raster unit is arranged along the line direction of described display panel, and pitch is designated as LP
1Be that the b point is positioned at perpendicular on described display panel 302 and the axis by these display panel 302 centers (being true origin), with the distance of display panel be S1.Identical for guaranteeing controlled grating beam splitting forms through front and back respectively stereos copic viewing zone and viewing distance, pitch LP
1, LP
2, place apart from S
1(distance of rearmounted controllable light grid array and display panel), S
2(distance of preposition controllable light grid array and display panel), viewing distance D, interpupillary distance E, inferior pixel size t, viewpoint is counted m should satisfy following relation:
When the controllable light grating array was classified the slit grating array as, a point and b point were the center of the grating opening of a raster unit in the controllable light grid array (can but be not limited to the middle raster unit); When the controllable light grating array was classified the lenticulation array as, a point and b point were the center of a raster unit in the controllable light grid array (can but be not limited to a middle raster unit) lens.
Because the periodicity of grating array, as long as arbitrary raster unit X on the rearmounted controllable light grid array 301, and satisfy relational expression with the difference DELTA x of this raster unit X center of nearest arbitrary raster unit on the line direction of display panel 302 on the preposition controllable light grid array 303: Δ x=M (LP
1-LP
2), M is 0 or during positive integer, can guarantee that the beholder sees correct stereo-picture.
Can be drawn by Fig. 2 a, the light splitting result of preposition controllable light grid array 303 is that left eye is seen the even column pixel, and right eye is seen the odd column pixel, and namely preposition controllable light grid array 303 is the described second controllable light grid array; The light splitting result of rearmounted controllable light grid array 301 is that left eye is seen the odd column pixel, and right eye is seen the even column pixel, and namely rearmounted controllable light grid array 301 is the described first controllable light grid array.
Second kind of alternatives is shown in Fig. 2 b, and the c point is the position at the center of preposition controllable light grid array 303, and coordinate is designated as (LP
2/ 2, S
2, 0), raster unit is arranged along the line direction of described display panel, and pitch is designated as LP
2Be the c point be positioned at perpendicular to described display panel 302 and with this display panel 302 centers (being true origin) distance on the line direction of this display panel be LP
2On/2 the axis, with the distance of display panel be S2.The d point is the position of rearmounted controllable light grid array 301, and coordinate is designated as (LP
1/ 2 ,-S
1, 0), raster unit is arranged along the line direction of described display panel, and pitch is designated as LP
1Be the d point be positioned at perpendicular to described display panel 302 and with this display panel 302 centers (being true origin) distance on the line direction of this display panel be LP
1On/2 the axis, with the distance of display panel be S1.Identical for guaranteeing controlled grating beam splitting forms through front and back respectively stereos copic viewing zone and viewing distance, pitch LP
1, LP
2, place apart from S
1(distance of preposition controllable light grid array and display panel), S
2(distance of preposition controllable light grid array and display panel), viewing distance D, interpupillary distance E, inferior pixel size t, viewpoint is counted m should satisfy following relation:
When the controllable light grating array was classified the slit grating array as, c point and d point were the center of the grating opening of a raster unit in the controllable light grid array (can but be not limited to the middle raster unit); When the controllable light grating array was classified the lenticulation array as, c point and d point were the center of the lens of a raster unit in the controllable light grid array (can but be not limited to the middle raster unit);
Because the periodicity of grating array, as long as arbitrary raster unit X on the rearmounted controllable light grid array 301, and satisfy relational expression with the difference DELTA x of this raster unit X center of nearest arbitrary raster unit on the line direction of display panel 302 on the preposition controllable light grid array 303:
N is 0 or during positive integer, can guarantee that the beholder sees correct stereo-picture.
Can be drawn by Fig. 2 b, the light splitting result of preposition controllable light grid array 303 is that left eye is seen the odd column pixel, and right eye is seen the even column pixel, and namely preposition controllable light grid array 303 is the described first controllable light grid array; The light splitting result of rearmounted controllable light grid array 301 is that left eye is seen the even column pixel, and right eye is seen the odd column pixel, and namely rearmounted controllable light grid array 301 is the described second controllable light grid array.
Second kind of embodiment (is that described first is the first half pixel column in adopting embodiment one, described second portion is the embodiment of later half pixel column) time, can adopt in above-mentioned two kinds of alternativess any equally, namely adopt the implementation of Fig. 2 a or Fig. 2 b.Wherein, the distance of the pitch of preposition, rearmounted controllable light grid array and preposition, rearmounted controllable light grid array and display panel all can obtain according to top formula.
Embodiment three, a kind of 3 d display device, basic identical with the structure of embodiment two, distinctive points is: rearmounted controllable light grid array 301, preposition controllable light grid array 303 are respectively controllable liquid crystal slit grating array 3010, controllable liquid crystal slit grating array 3030, the position relation of they and display panel 302 identical shown in Fig. 2 a among the embodiment two.Can realize the effect of whether light splitting by the mode that two adjacent moment liquid crystal slit grating array is added driving voltage and do not add driving voltage, but namely add the driving voltage light splitting, not add driving voltage, can not light splitting, incident light all passes through.In the time of also can selecting to add driving voltage during concrete enforcement, incident light all passes through; When not adding driving voltage, to the incident light light splitting.
Same, show constantly that at t1 the even column image of odd column and right image of the left image of this stereo-picture makes up (i.e. first image); Show the odd column image combination (i.e. second image) of the even column of left image and the right image of this stereo-picture constantly at t2; Fig. 3 a, Fig. 3 b are respectively at the t1 moment and t2 index path constantly.
In Fig. 3 a, described display panel 302 is operated in t1 constantly, described controllable liquid crystal slit grating array 3030 does not add driving voltage, described controllable liquid crystal slit grating array 3010 adds driving voltage, controllable liquid crystal slit grating array 3010 is directed to beholder's left eye with the odd column image light of the left image that described display panel 302 shows, makes beholder's right eye see the even column of right image simultaneously;
In Fig. 3 b, described display panel 302 is operated in t2 constantly, described controllable liquid crystal slit grating array 3010 does not add driving voltage, described controllable liquid crystal slit grating array 3030 adds driving voltage, described controllable liquid crystal slit grating array 3030 is directed to beholder's left eye with the even column image light of the left image that described display panel 302 shows, and makes beholder's right eye see the odd column of right image.
In the present embodiment, according to the visual persistence of human eye, the refresh rate of display panel 302 be set to human eye can be imperceptible 2 times of the highest display refresh rates during image flicker, for example: the refresh rate of display panel 302 can be 120Hz; Making controllable light grid array 3010,3030 conversion frequency simultaneously is the refresh rate of display panel 302, i.e. 120Hz, and this moment, human eye can be experienced stereo-picture.
In the present embodiment, when controllable light grid array 3010,3030 did not all add driving voltage, be two dimension (2D) display mode this moment, can realize the handoff functionality of 2D/3D;
Close position in the present embodiment between controllable liquid crystal slit grating array and the display panel is situation shown in Fig. 2 a, can freely select a kind of among Fig. 2 a or Fig. 2 b when specifically implementing.
In the present embodiment, the aperture opening ratio of controllable liquid crystal slit grating, namely the ratio of light transmission part and pitch can be designed to 1/2,9/16 according to actual effect;
Embodiment four, a kind of 3 d display device, and as shown in Figure 4, for the convenient Fig. 4 that describes has only provided controllable light grid array and display panel, index path does not provide.Structure shown in structure shown in Figure 4 and Fig. 3 a, Fig. 3 b has identical functions, its key distinction point is: preposition controllable light grid array 303 is controllable liquid crystal compound lens array 3032, controllable liquid crystal compound lens array 3032 is made up of UV glue 101 and liquid crystal 102, when giving controllable liquid crystal compound lens array 3032 making alives, the refractive index of 102 pairs of incident lights of liquid crystal lens is identical with UV glue 101, be equivalent to sheet glass this moment 3032, and this is the 2D pattern; When giving controllable liquid crystal compound lens array 3032 not during making alive, the refractive index of 102 pairs of incident lights of liquid crystal lens is greater than the refractive index of 101 pairs of incident lights of UV glue, and be equivalent to condenser lens this moment 3032, and this is the 3D pattern.Controllable liquid crystal slit grating 3011 has same or analogous structure and optical property with the controllable liquid crystal slit grating 3010 shown in Fig. 3 a, Fig. 3 b, does not do at this and gives unnecessary details.
Embodiment five, a kind of 3 d display device, and as shown in Figure 5, for the convenient Fig. 5 that describes has only provided controllable light grid array and display panel, index path does not provide.Structure shown in structure shown in Figure 5 and Fig. 3 a, Fig. 3 b has identical functions, its key distinction point is: preposition controllable light grating array is classified controllable electrodes liquid crystal lens array 3031 as, when controllable electrodes liquid crystal lens array 3031 making alives, be equivalent to GRIN Lens this moment 3032, and this is the 3D pattern; When controllable electrodes liquid crystal lens array 3031 not during making alive, be equivalent to sheet glass this moment 3032, and this is the 2D pattern; Controllable liquid crystal slit grating 3012 has same or analogous structure and optical property with the controllable liquid crystal slit grating 3010 shown in Fig. 3 a, Fig. 3 b, does not do at this and gives unnecessary details.
By the various embodiments described above as can be known, the first controllable light grid array of the present invention and the second controllable light grid array lay respectively at the both sides of display panel, it not only has site symmetry, and the stereoptics parameter of first controllable light grid array and the second controllable light grid array matches each other, make the arrangement of left and right image have the multicycle symmetry, thereby the resolution in the time of can improving the stereo-picture demonstration is in the demonstration that can also realize full resolution in some cases.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. 3 d display device comprises: module backlight, display panel: it is characterized in that:
Described display panel is used for the stereo-picture by the left image with parallax and right image construction to be shown is divided into first image and second image, and shows respectively in two adjacent moment; Described first image and second image all comprise first and second portion, the first of described first image, the position of second portion in first image, identical with first, the position of second portion in second image of described second image respectively; The first of described first image is half pixel column of left image, and second portion is half pixel column of right image; The first of described second image is second half pixel column of described right image, and second portion is second half pixel column of described left image;
Described 3 d display device also comprises:
The first controllable light grid array is used for when work the guiding beholder of the first left eye with the shown image of display panel, the second portion beholder's right eye that leads;
The second controllable light grid array is used for when work the second portion guiding beholder left eye with the shown image of display panel, first's beholder's right eye that leads;
Control module is used for controlling the first controllable light grid array work, and stopping the second controllable light grid array work when described display panel shows first image; When described display panel shows second image, control the second controllable light grid array work, and stop the first controllable light grid array work;
The refresh rate of described display panel be human eye can be imperceptible more than 2 times or 2 times of the highest display refresh rates during image flicker.
2. 3 d display device as claimed in claim 1 is characterized in that:
The first controllable light grid array is centered close to perpendicular to described display panel and by on the axis at this display panel center between module backlight and display panel, and raster unit is arranged along the line direction of described display panel;
The distance of the first controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
3. 3 d display device as claimed in claim 2 is characterized in that:
The second controllable light grid array is positioned at the demonstration side of display panel, is centered close to perpendicular to described display panel and by on the axis at this display panel center, and raster unit is arranged along the line direction of described display panel;
The distance of the second controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
4. 3 d display device as claimed in claim 3 is characterized in that:
Arbitrary raster unit on the first controllable light grid array and on the second controllable light grid array with the difference DELTA x of the center of the nearest arbitrary raster unit of this raster unit on the line direction of display panel is: Δ x=M * Δ Lp;
Wherein, M is 0 or positive integer, and Δ Lp is pitch poor of the pitch of the first controllable light grid array and the second controllable light grid array.
5. 3 d display device as claimed in claim 1 is characterized in that:
The second controllable light grid array is between module backlight and display panel, be centered close to perpendicular to described display panel and with the center of display panel be on the axis of the second controllable light grid array pitch 1/2 in the distance on the line direction of this display panel, raster unit is arranged along the line direction of described display panel;
The distance of the second controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
6. 3 d display device as claimed in claim 5 is characterized in that:
The first controllable light grid array is positioned at the demonstration side of display panel, be centered close to perpendicular to described display panel and with the center of display panel be on the axis of the first controllable light grid array pitch 1/2 in the distance on the line direction of this display panel, raster unit is arranged along the line direction of described display panel;
The distance of the first controllable light grid array and display panel is:
Pitch is:
Wherein, D is viewing distance, and E is interpupillary distance, and t is time pixel size, and m is the viewpoint number.
7. 3 d display device as claimed in claim 6 is characterized in that:
Arbitrary raster unit on the first controllable light grid array and on the second controllable light grid array with the difference DELTA x of the center of the nearest arbitrary raster unit of this raster unit on the line direction of display panel is:
Wherein, N is 0 or positive integer, and Δ Lp is pitch poor of the pitch of the second controllable light grid array and the first controllable light grid array.
8. 3 d display device as claimed in claim 1 is characterized in that:
The first controllable light grid array is between module backlight and display panel, and the second controllable light grid array is positioned at the demonstration side of display panel;
Perhaps
The second controllable light grid array is between module backlight and display panel, and the first controllable light grid array is positioned at the demonstration side of display panel.
9. as each described 3 d display device in the claim 1 to 8, it is characterized in that:
Described first is the first half pixel column of each row figure in the cycle, and described second portion is the later half pixel column of each row figure in the cycle;
The first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The first half pixel of described first image in each row figure cycle classified the first half pixel column of left image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of right image respective row figure in the cycle as;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The first half pixel of described second image in each row figure cycle classified the first half pixel column of right image respective row figure in the cycle as, and the later half pixel is classified the later half pixel column of left image respective row figure in the cycle as.
10. as each described 3 d display device in the claim 1 to 8, it is characterized in that:
Described first is the odd column pixel, and described second portion is the even column pixel;
The first of described first image is half pixel column of left image, and second portion is that half pixel column of right image refers to:
The odd column pixel of described first image is the odd column pixel of left image, and the even column pixel is the even column pixel of right image;
The first of described second image is second half pixel column of right image, and second portion is that second half pixel column of left image refers to:
The odd column pixel of described second image is the odd column pixel of right image, and the even column pixel is the even column pixel of left image.
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| CN2013101476453A CN103246069A (en) | 2013-04-25 | 2013-04-25 | Stereo-display device |
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| CN2013101476453A CN103246069A (en) | 2013-04-25 | 2013-04-25 | Stereo-display device |
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Application publication date: 20130814 |