CN104020624A - Naked eye 3D display device - Google Patents
Naked eye 3D display device Download PDFInfo
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- CN104020624A CN104020624A CN201410257830.2A CN201410257830A CN104020624A CN 104020624 A CN104020624 A CN 104020624A CN 201410257830 A CN201410257830 A CN 201410257830A CN 104020624 A CN104020624 A CN 104020624A
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Abstract
The invention provides a naked eye 3D display device which comprises a 2D display device and a 3D spectral device arranged in front of the 2D display device. The 3D spectral device comprises a first substrate, a third substrate, a fourth substrate and a second substrate. A first electrode is arranged on the first substrate, a second electrode is arranged on the first electrode, a first liquid crystal layer is arranged between the second electrode and the third substrate, a first polaroid is arranged on one side, right facing the fourth substrate, of the third substrate, and the polarization direction of the first polaroid is perpendicular to the polarization direction of the 2D display device. A third electrode is arranged on the fourth substrate, a second liquid crystal layer is arranged between the third electrode and the second substrate, wherein the polarities of liquid crystal materials of the first liquid crystal layer and the second liquid crystal layer are opposite. According to the naked eye 3D display device, interference of polarized light is reduced through the structural arrangement of the 3D spectral device, so that the watching comfort level of a user in the 3D mode is improved.
Description
Technical field
The present invention relates to bore hole 3D technical field, in particular to a kind of bore hole 3D 3 d display device.
Background technology
In 3D stereo display technique, bore hole 3D becomes the center of gravity of 3D display technique research because of the advantage in the convenience without other utility appliance and application, and in various bore hole 3D technology, the free stereo 2D display device of liquid crystal lens and liquid crystal slit grating is subject to extensive concern because of distinctive advantage separately.
At present, adopt liquid crystal lens to realize the three-dimensional 2D display device that free stereo shows, mainly to utilize, on two plate bases of liquid crystal layer both sides, positive and negative electrode is set respectively, and on Different electrodes, apply the driving voltage varying in size, thereby between two plate bases, form the vertical electric field with varying strength, form varifocal liquid crystal lens to drive Liquid Crystal Molecules Alignment.Therefore, the voltage that only need to control in respective electrode distributes, and the index distribution of liquid crystal lens will change accordingly, thereby the distribution of pixel emergent light is controlled, and realizes free stereo demonstration and 2D/3D and freely switches.
Concrete, by optimizing the voltage in respective electrode, can obtain optical path difference in each lens unit and distribute.For crosstalking of reducing that liquid crystal lens causes in the time that 3D shows, avoid left (right side) eye image information to be perceived by right (left side) eye the quality that reduces stereo display respectively, need liquid crystal lens and the distribution of parabolic type lens light path difference to match.
And in reality, approach with desirable para-curve although liquid crystal lens unit optical path difference distribution curve after voltage optimization is basic in lens center, but at two liquid crystal lens unit intersections (as Fig. 1, in Fig. 1, identify with square frame, wherein, in Fig. 1, dotted portion represents parabolic type lens, solid line part represents common liquid crystal lens), liquid crystal lens optical path difference distributes and still obviously departs from desirable para-curve, use the three-dimensional 2D display device generation of liquid crystal lens to crosstalk more greatly thereby cause, reduced stereo display effect and observed comfort level.
Summary of the invention
The object of the present invention is to provide a kind of bore hole 3D 3 d display device, to solve the above problems.
A kind of bore hole 3D 3 d display device is provided in an embodiment of the present invention, has comprised: 2D display device and be placed in the display screen of 2D display device before, and the 3D light-splitting device to display screen just;
3D light-splitting device comprise towards away from 2D display device direction successively just to arrange first substrate, the 3rd substrate, tetrabasal and second substrate;
On first substrate, be provided with the first electrode, on the first electrode, be provided with the second electrode; Between the second electrode and the 3rd substrate, be provided with the first liquid crystal layer;
The 3rd substrate is just to being provided with the first polaroid in a side of tetrabasal; The polarization direction of the first polaroid is mutually vertical with the polarization direction of the emergent light of 2D display device; On tetrabasal, be provided with third electrode; Between third electrode and second substrate, be provided with the second liquid crystal layer; Wherein, the polarity of the liquid crystal material of the first liquid crystal layer is contrary with the polarity of the liquid crystal material of the second liquid crystal layer.
Further, in this device, the 3rd substrate is just to being provided with the first common electrode in a side of first substrate; Second substrate is just to being provided with the second common electrode in a side of tetrabasal.
Further, in this device, the second electrode is just to being provided with the first vertical alignment layer in a side of the 3rd substrate; The first common electrode is just to being provided with the second vertical alignment layer in a side of first substrate; Between the first vertical alignment layer and the second vertical alignment layer, be provided with the first liquid crystal layer; The first vertical alignment layer and the second vertical alignment layer are all for controlling the initial orientation of liquid crystal molecule.
Further, in this device, third electrode is just to being provided with the first horizontal alignment film in a side of second substrate; The second common electrode is just to being provided with the second horizontal alignment film in a side of tetrabasal; Between the first horizontal alignment film and the second horizontal alignment film, be provided with the second liquid crystal layer; The first horizontal alignment film and the second horizontal alignment film are all for controlling the initial orientation of liquid crystal molecule.
Further, in this device, 3D light-splitting device is divided into multiple liquid crystal lens unit on the length direction along first substrate;
Each liquid crystal lens unit comprises multiple the first electrodes and multiple the second electrode, and adjacent liquid crystal lens unit shares same the first electrode at its intersection; Wherein, the first electrode has identical width with the second electrode, and the first electrode and the second electrode are being crisscross arranged along being parallel in the first vertical direction of 2D display device;
Between the first adjacent electrode and between the second adjacent electrode, be provided with same predetermined interval, and the first electrode and the second electrode all extend along the second vertical direction that is parallel to 2D display device;
The first electrode, the second electrode and third electrode are strip electrode.
Further, in this device, at the intersection of adjacent liquid crystal lens unit, on tetrabasal, be provided with two third electrodes; Wherein, between adjacent third electrode, be provided with predetermined width, and third electrode extends along the second vertical direction that is parallel to 2D display device.
Further, in this device, in inside, each liquid crystal lens unit, on tetrabasal, be provided with multiple third electrodes; Wherein, inside, liquid crystal lens unit does not comprise intersection.
Further, in this device, 3D light-splitting device also comprises the second polaroid; First substrate is just to being provided with the second polaroid in a side of 2D display device; Wherein, the polarization direction of the first polaroid and the second polaroid is orthogonal.
Further, in this device, the first electrode is just to being provided with the first dielectric layer in a side of the 3rd substrate, and the first dielectric layer is just to being provided with the second electrode in a side of the 3rd substrate.
Further, in this device, 3D light-splitting device also comprises: for encapsulating the sealed plastic box of the first liquid crystal layer periphery, for encapsulating the sealed plastic box of the second liquid crystal layer periphery and for controlling the spacer that liquid crystal cell is thick.
The bore hole 3D 3 d display device that the embodiment of the present invention provides, with of the prior art at two liquid crystal lens unit intersections, liquid crystal lens optical path difference distributes and still obviously departs from desirable para-curve, use the three-dimensional 2D display device generation of liquid crystal lens to crosstalk more greatly thereby cause, having reduced stereo display effect compares with the scheme of observing comfort level, it comprises: 2D display device and be placed in the display screen of 2D display device before, and the 3D light-splitting device to display screen just; 3D light-splitting device comprise towards away from 2D display device direction successively just to arrange first substrate, the 3rd substrate, tetrabasal and second substrate; On first substrate, be provided with the first electrode, on the first electrode, be provided with the second electrode; Between the second electrode and the 3rd substrate, be provided with the first liquid crystal layer; The 3rd substrate is just to being provided with the first polaroid in a side of tetrabasal; The polarization direction of the first polaroid is mutually vertical with the polarization direction of the emergent light of 2D display device; On tetrabasal, be provided with third electrode; Between third electrode and second substrate, be provided with the second liquid crystal layer; Wherein, the polarity of the liquid crystal material of the first liquid crystal layer is contrary with the polarity of the liquid crystal material of the second liquid crystal layer.In the present invention, when all apply voltage on the first electrode, the second electrode and third electrode time, this 3D light-splitting device can be used as liquid crystal lens and uses; When apply voltage on the first electrode, the second electrode, and while not applying voltage on third electrode, this 3D light-splitting device can be used as liquid crystal slit grating and uses.In the time using as liquid crystal lens, from the linearly polarized light of the first polaroid outgoing enters the second liquid crystal layer, can produce the refraction effect of different angles.Owing to being dark state from the light part of the first polaroid outgoing, therefore the liquid crystal slit being positioned under dark state is opened, reduce crosstalking under dark state, the optical path difference that makes whole bore hole 3D 3 d display device have similar parabolic type lens distributes, and has improved stereo display effect and has observed comfort level.In the time that 3D light-splitting device uses as liquid crystal slit grating (in small part the first electrode and the second electrode application voltage), become light and dark striped from the light of polaroid outgoing, and dark fringe is wide and bright fringes is narrower, form a liquid crystal slit grating, liquid crystal slit grating can make display brightness high, and the error of crosstalking is little, thereby can offers the better stereo display effect of user and observe comfort level.
The present invention has following beneficial effect compared with correlation technique:
1, reducing 3D crosstalks: can pass through the said structure setting of 3D light-splitting device, reduce crosstalking of linearly polarized light, thereby improve the comfort level that user watches under 3D pattern;
2, broader 3D range of observation: while work under 3D display mode, this 3D light-splitting device both can be used as liquid crystal lens and used, also can be used as liquid crystal slit grating and uses.Because both have different focal lengths and viewing ratio, therefore user's eye tracking of can arranging in pairs or groups adapts to different viewing distances and switches, thereby realizes the mode that the autonomous 3D of selection realizes;
3, shorten the liquid crystal lens response time: because the focal distance ratio of the 3D light-splitting device of this bore hole 3D 3 d display device is larger, while use as liquid crystal lens 3 d display device, can reduce the thickness of liquid crystal layer, further shorten the response time of liquid crystal lens 3 d display device.
Brief description of the drawings
Fig. 1 shows the distribution schematic diagram of two liquid crystal lens unit intersection liquid crystal lens optical path differences in the background technology of the embodiment of the present invention;
Fig. 2 shows the structural representation of a kind of bore hole 3D 3 d display device that the embodiment of the present invention provides;
The structural representation of the first electrode during a kind of bore hole 3D stereo display that Fig. 3 shows the embodiment of the present invention to be provided fills;
Fig. 4 shows a kind of structural representation while using bore hole 3D 3 d display device that the embodiment of the present invention provides to use as liquid crystal lens 3 d display device;
Structural representation when the bore hole 3D 3 d display device that Fig. 5 shows the another kind of use embodiment of the present invention to be provided uses as liquid crystal lens 3 d display device;
The distribution schematic diagram of the optical path difference after the bore hole 3D 3 d display device that Fig. 6 shows the use embodiment of the present invention to be provided uses as liquid crystal lens 3 d display device;
Structural representation when the bore hole 3D 3 d display device that Fig. 7 shows the use embodiment of the present invention to be provided uses as liquid crystal slit grating;
Fig. 8 shows the structural representation of the another kind of bore hole 3D 3 d display device that the embodiment of the present invention provides;
Fig. 9 shows the structural representation of third electrode in the another kind of bore hole 3D 3 d display device that the embodiment of the present invention provides;
Figure 10 shows the structural representation of the another kind of bore hole 3D 3 d display device that the embodiment of the present invention provides;
Figure 11 shows a kind of while using the bore hole 3D 3 d display device that the embodiment of the present invention provides, the structural representation of the emergent light of 2D display device;
Figure 12 shows another kind of while using the bore hole 3D 3 d display device that the embodiment of the present invention provides, the structural representation of the emergent light of 2D display device;
Figure 13 shows another kind of while using the bore hole 3D 3 d display device that the embodiment of the present invention provides, the structural representation of the emergent light of 2D display device;
Structural representation when the bore hole 3D 3 d display device that Figure 14 shows the another kind of use embodiment of the present invention to be provided uses as liquid crystal lens 3 d display device;
Figure 15 shows another kind of while using the bore hole 3D 3 d display device that the embodiment of the present invention provides, the structural representation of the emergent light of 2D display device.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
As shown in Figure 2, the embodiment of the present invention provides a kind of bore hole 3D 3 d display device 1000, comprising: 2D display device 1200 and be placed in the display screen of 2D display device 1200 before, and the 3D light-splitting device 1100 to display screen just; 3D light-splitting device 1100 comprise towards away from 2D display device 1200 directions successively just to arrange first substrate 1001, the 3rd substrate 1008, tetrabasal 1030 and second substrate 1002; On first substrate 1001, be provided with on the first electrode 1003, the first electrodes 1003 and be provided with the second electrode 1005; Between the second electrode 1005 and the 3rd substrate 1008, be provided with the first liquid crystal layer 1007; The 3rd substrate 1008 is just to being provided with the first polaroid 1016 in a side of tetrabasal 1030; The polarization direction of the first polaroid 1016 is mutually vertical with the polarization direction of the emergent light of 2D display device 1200; On tetrabasal 1030, be provided with third electrode 1011; Between third electrode 1011 and second substrate 1002, be provided with the second liquid crystal layer 1015; Wherein, the polarity of the liquid crystal material of the first liquid crystal layer 1007 is contrary with the polarity of the liquid crystal material of the second liquid crystal layer 1015.
The bore hole 3D 3 d display device 1000 that the embodiment of the present invention provides, with of the prior art at two liquid crystal lens unit intersections, liquid crystal lens optical path difference distributes and still obviously departs from desirable para-curve, thereby producing more greatly, the three-dimensional 2D display device 1200 that causes use liquid crystal lens crosstalks, having reduced stereo display effect compares with the scheme of observing comfort level, it comprises: 2D display device 1200 and be placed in the display screen of 2D display device 1200 before, and the 3D light-splitting device 1100 to display screen just; 3D light-splitting device 1100 comprise towards away from 2D display device 1200 directions successively just to arrange first substrate 1001, the 3rd substrate 1008, tetrabasal 1030 and second substrate 1002; On first substrate 1001, be provided with on the first electrode 1003, the first electrodes 1003 and be provided with the second electrode 1005; Between the second electrode 1005 and the 3rd substrate 1008, be provided with the first liquid crystal layer 1007; The 3rd substrate 1008 is just to being provided with the first polaroid 1016 in a side of tetrabasal 1030; The polarization direction of the first polaroid 1016 is mutually vertical with the polarization direction of the emergent light of 2D display device 1200; On tetrabasal 1030, be provided with third electrode 1011; Between third electrode 1011 and second substrate 1002, be provided with the second liquid crystal layer 1015; Wherein, the polarity of the liquid crystal material of the first liquid crystal layer 1007 is contrary with the polarity of the liquid crystal material of the second liquid crystal layer 1015.In the present invention, when all apply voltage on the first electrode 1003, the second electrode 1005 and third electrode 1011 time, this 3D light-splitting device 1100 can be used as liquid crystal lens and uses; When apply voltage on the first electrode 1003, the second electrode 1005, and while not applying voltage on third electrode 1011, this 3D light-splitting device 1100 can be used as liquid crystal slit grating and uses.In the time using as liquid crystal lens, from the linearly polarized light of the first polaroid 1016 outgoing enters the second liquid crystal layer 1015, can produce the refraction effect of different angles.Owing to being dark state from the light part of the first polaroid 1016 outgoing, therefore the liquid crystal slit being positioned under dark state is opened, reduce crosstalking under dark state, the optical path difference that makes whole bore hole 3D 3 d display device 1000 have similar parabolic type lens distributes, and has improved stereo display effect and has observed comfort level.In the time that using as liquid crystal slit grating, 3D light-splitting device 1100 (applies voltage at small part the first electrode 1003 and the second electrode 1005), become light and dark striped from the light of polaroid outgoing, and dark fringe is wide and bright fringes is narrower, form a liquid crystal slit grating, liquid crystal slit grating can make display brightness high, and the error of crosstalking is little, thereby can offers the better stereo display effect of user and observe comfort level.
The present invention has following beneficial effect compared with correlation technique:
1, reducing 3D crosstalks: can pass through the said structure setting of 3D light-splitting device 1100, reduce crosstalking of linearly polarized light, thereby improve the comfort level that user watches under 3D pattern;
2, broader 3D range of observation: while work under 3D display mode, this 3D light-splitting device 1100 both can be used as liquid crystal lens and used, also can be used as liquid crystal slit grating and uses.Because both have different focal lengths and viewing ratio, therefore user's eye tracking of can arranging in pairs or groups adapts to different viewing distances and switches, thereby realizes the mode that the autonomous 3D of selection realizes;
3, shorten the liquid crystal lens response time: because the focal distance ratio of the 3D light-splitting device 1100 of this bore hole 3D 3 d display device 1000 is larger, while use as liquid crystal lens 3 d display device, can reduce the thickness of liquid crystal layer, further shorten the response time of liquid crystal lens 3 d display device.
Concrete, bore hole 3D 3 d display device 1000 comprises two parts, 2D display device 1200 and 3D light-splitting device 1100; Wherein, 2D display device 1200 is display, well-known, is provided with display screen on display, in order to the data transformation of computing machine is become various words, numeral, symbol or intuitively image show.For example, can be as LCD (Liquid Crystal Display, liquid crystal display) or OLED (Organic Light-Emitting Diode, Organic Electricity laser display) etc.; 3D light-splitting device 1100 is arranged on the display screen of 2D display device 1200, or be arranged on display screen before, in order to the emergent light of 2D display device 1200 is processed, to 2D picture is showed to user with the stereoeffect of 3D.
As shown in Figure 2, in Fig. 2, be provided with tri-directions of x, y and z, if the polarization direction of the emergent light of 2D display device 1200 is parallel with y direction, in Fig. 2-Figure 15, the double-head arrow oblique line on 2D display device 1200 places the right represents that the polarization direction of emergent light of 2D display device 1200 is parallel with y direction.Concrete, 3D light-splitting device 1100 comprises the first substrate 1001, the 3rd substrate 1008, tetrabasal 1030 and the second substrate 1002 that set gradually along z direction; Wherein, first substrate 1001, the 3rd substrate 1008, tetrabasal 1030 and second substrate 1002 can be the transparent bases such as glass, and above-mentioned four substrates have identical or close refractive index.
The first electrode 1003, the second electrode 1005 and third electrode 1011 are generally transparent conductive material, as ITO (Indium Tin Oxide, tin indium oxide) or IZO (Indium-doped zinc oxide, indium zinc oxide) etc.
The emergent light polarization direction of the polarization direction of the first polaroid 1016 and 2D display device 1200 is vertical (also can be described as orthogonal) mutually, be in Fig. 2-Figure 15, the horizontal line of the four-headed arrow on first polaroid 1016 the right represents that the polarization direction of emergent light of the first polaroid 1016 is parallel with x direction; For example, in the time that the polarization direction of the emergent light of 2D display device 1200 is parallel with y direction, the polarization direction of the first polaroid 1016 is parallel with x direction.
The first liquid crystal layer 1007 is encapsulated between first substrate 1001 and the 3rd substrate 1008, the first liquid crystal layer 1007 in the present embodiment is that negative liquid crystal material (is △ ε=ε ∥-ε ⊥ <0, in above formula, ε ∥ is the dielectric coefficient of long axis of liquid crystal molecule direction, and ε ⊥ is the dielectric coefficient of liquid crystal molecule short-axis direction).The second liquid crystal layer 1015 in the present embodiment is encapsulated between second substrate 1002 and tetrabasal 1030, and the second liquid crystal layer 1015 is that positivity liquid crystal material (is △ ε=ε ∥-ε ⊥ >0, in above formula, ε ∥ is the dielectric coefficient of long axis of liquid crystal molecule direction, and ε ⊥ is the dielectric coefficient of liquid crystal molecule short-axis direction).
Further, as shown in Figure 2, in this device, the 3rd substrate 1008 is just to being provided with the first common electrode 1009 in a side of first substrate 1001; Second substrate 1002 is just to being provided with the second common electrode 1013 in a side of tetrabasal 1030.
In the present embodiment, the first common electrode 1009 and the second common electrode 1013 be the transparent conductive material of whole as ITO or IZO etc., and the first common electrode 1009 and the second common electrode 1013 are without special figure.
Further, as shown in Figure 2, in this device, the second electrode 1005 is just to being provided with the first vertical alignment layer 1006 in a side of the 3rd substrate 1008; The first common electrode 1009 is just to being provided with the second vertical alignment layer 1010 in a side of first substrate 1001; Between the first vertical alignment layer 1006 and the second vertical alignment layer 1010, be provided with the first liquid crystal layer 1007; The first vertical alignment layer 1006 and the second vertical alignment layer 1010 are all for controlling the initial orientation of liquid crystal molecule.
Concrete, introduce in the above-described embodiments the first liquid crystal layer 1007 for negative liquid crystal material, under the effect of the first vertical alignment layer 1006 and the second vertical alignment layer 1010, the initial orientation of negative liquid crystal layer is arranged along z direction.
Further, as shown in Figure 2, in this device, third electrode 1011 is just to being provided with the first horizontal alignment film 1012 in a side of second substrate 1002; The second common electrode 1013 is just to being provided with the second horizontal alignment film 1014 in a side of tetrabasal 1030; Between the first horizontal alignment film 1012 and the second horizontal alignment film 1014, be provided with the second liquid crystal layer 1015; The first horizontal alignment film 1012 and the second horizontal alignment film 1014 are all for controlling the initial orientation of liquid crystal molecule.
Concrete, introduce in the above-described embodiments the second liquid crystal layer 1015 for positivity liquid crystal material, under the effect of the first horizontal alignment film 1012 and the second horizontal alignment film 1014, the initial molecular long axis orientation of positivity liquid crystal layer is arranged along x direction.
Further, as shown in Figure 2, in this device, 3D light-splitting device is divided into multiple liquid crystal lens unit on the length direction along first substrate 1001; Each liquid crystal lens unit comprises multiple the first electrodes 1003 and multiple the second electrode 1005, and adjacent liquid crystal lens unit shares same the first electrode 1003 at its intersection; Wherein, the first electrode 1003 has identical width with the second electrode 1005, and the first electrode 1003 and the second electrode 1005 are being crisscross arranged along being parallel in the first vertical direction of 2D display device 1200; Between the first adjacent electrode 1003 and between the second adjacent electrode 1005, be provided with same predetermined interval, and the first electrode 1003 and the second electrode 1005 all extend along the second vertical direction that is parallel to 2D display device 1200; The first electrode 1003, the second electrode 1005 and third electrode 1011 are strip electrode.
Concrete, as shown in Figure 2,3D light-splitting device 1100 contains multiple liquid crystal lens unit, and as (only having drawn three lens units in Fig. 2) such as L1, L2 and L3, each liquid crystal lens unit (as L1, L2 and L3 etc.) have identical structure; For example, comprise multiple the first electrodes 1003 and the second electrode 1005; Each first electrode 1003 and the second electrode 1005 are for to separate at certain intervals in x direction, and the strip electrode extending along y direction.
Shown in Fig. 3, in each liquid crystal lens unit, taking L1 as example, the first electrode 1003 comprises 10031,10032,10033,10034,10035,10036, multiple strip electrodes such as 10037,10038 and 10039, and share same electrode as 10031 and 10039 etc. at the intersection of each lens unit; The second electrode 1005 comprises 10051,10052, multiple strip electrodes such as 10053,10054,10055,10056,10057 and 10058.
Be z direction perpendicular to the first vertical direction of 2D display device 1200; The second vertical direction that is parallel to 2D display device 1200 is y direction; Preferably, in the present embodiment, making the first electrode 1003 and each strip electrode of the second electrode 1005 have identical width and interval (is that interval between interval and adjacent the second electrode 1005 between adjacent the first electrode 1003 is identical, and the interval between the interval between each adjacent the first electrode 1003 or each adjacent the second electrode 1005 all equates), and the first electrode 1003 and the second electrode 1005 are crisscross arranged in z direction.
Further, as shown in Figures 2 and 3, in this device, at the intersection of adjacent liquid crystal lens unit, on tetrabasal 1030, be provided with two third electrodes 1011; Wherein, between adjacent third electrode 1011, be provided with predetermined width, and third electrode 1011 extends along the second vertical direction (being y direction) that is parallel to 2D display device 1200.
Concrete, third electrode 1011 is similarly has certain predetermined interval (in the present embodiment, being spaced apart a lens unit) in x direction, and the strip electrode extending along y direction.In the present embodiment, in each liquid crystal lens unit, comprise two third electrodes 1011, and two third electrodes 1011 are arranged on the intersection of adjacent liquid crystal lens unit.
With reference to Fig. 3, taking liquid crystal lens unit L1, in example, third electrode 1011 comprises two strip electrodes 10111 and 10115, the strip electrode of strip electrode 10111 and 10115 for being spaced apart the width of a lens unit and extending along y direction in x direction.
Further, as shown in Figure 8, in this device, in inside, each liquid crystal lens unit, on tetrabasal 1030, be provided with multiple third electrodes 1011; Wherein, inside, liquid crystal lens unit does not comprise intersection.
Further, as shown in figure 10, in this device, 3D light-splitting device 1100 also comprises the second polaroid 1017; First substrate 1001 is just to being provided with the second polaroid 1017 in a side of 2D display device 1200; Wherein, the polarization direction of the first polaroid 1016 and the second polaroid 1017 is orthogonal.
Concrete, in each lens unit, taking L1 as example, third electrode 1011 comprises as 10111,10112, multiple strip electrodes such as 10113,10114,10115, and each electrode has and equates or width not etc. extending along y direction.
Further, as shown in Figure 2, in this device, the first electrode 1003 is just to being provided with the first dielectric layer 1004, the first dielectric layers 1004 just to being provided with the second electrode 1005 in a side of the 3rd substrate 1008 in a side of the 3rd substrate 1008.
Concrete, the first dielectric layer 1004 can be silicon nitride or monox etc., for the first electrode 1003 and the second electrode 1005 are separated.
Further, as shown in Figure 2, in this device, 3D light-splitting device 1100 also comprises: for encapsulating the sealed plastic box of the first liquid crystal layer 1007 peripheries, for encapsulating the sealed plastic box of the second liquid crystal layer 1015 peripheries and for controlling the spacer that liquid crystal cell is thick.
Concrete, in addition, although do not draw in Fig. 2,3D light-splitting device 1100 also comprises between first substrate 1001 and the 3rd substrate 1008 and between periphery sealed plastic box, second substrate 1002 and the tetrabasal 1030 for encapsulating the first liquid crystal layer 1007, to encapsulate the periphery sealed plastic box of the second liquid crystal layer 1015 and for controlling the spacer that liquid crystal cell is thick (spacer) etc.
Below in conjunction with above-mentioned bore hole 3D 3 d display device 1000, its using method is done to detailed introduction:
1), in the time that bore hole 3D 3 d display device 1000 uses as liquid crystal lens 3 d display device:
Embodiment 1
As shown in Figure 4, the voltage of the first common electrode 1009 is set to zero, and on the first electrode 1003 with on the second electrode 1005, apply certain identical driving voltage V
1007, this driving voltage V
1007size should be enough to make the liquid crystal molecule of the first liquid crystal layer 1007 to twist to change its initial orientation; For the first liquid crystal layer 1007, from the linearly polarized light of 2D display device 1200 outgoing enters the first liquid crystal layer 1007, because the first liquid crystal layer 1007 has different refractive indexes, now there will be birefringent phenomenon, the linearly polarized light that is incident can be broken down into two-beam: ordinary light and extraordinary ray, ordinary light and extraordinary ray produce phase delay because of refractive index difference, and then will become elliptically polarized light from the linearly polarized light of 2D display device 1200 outgoing, when elliptically polarized light is by after the first polaroid 1016, become the linearly polarized light parallel with x direction.
Meanwhile, the voltage of the second common electrode 1013 is set to zero, on third electrode 1011, apply a larger voltage, now, both sides at positivity liquid crystal layer can form larger voltage difference, liquid crystal molecule on the strip electrode of each third electrode 1011 (as in Fig. 5 10111 and 10115), its molecular long axis will parallel with direction of an electric field (arranging along z direction).In each liquid crystal lens unit, liquid crystal molecule along with the distance of the strip electrode (as 10111 and 10115) of third electrode 1011, present different arrangements; Concrete, strip electrode (as 10111 and 10115) apart from third electrode 1011 is far away, electric field is more weak, and now, liquid crystal molecule tends to gradually horizontal direction and arranges (major axis that is liquid crystal molecule is parallel with x direction or vertical with direction of an electric field).In each lens unit, because voltage symmetry distributes, the second liquid crystal layer 1015 is along with the variation of electric field intensity presents the gradual change of refractive index, form a lenticule unit, from the linearly polarized light parallel with x direction of the first polaroid 1016 outgoing enters the second liquid crystal layer 1015, can produce the refraction effect of different angles.
2), in the time that bore hole 3D 3 d display device 1000 uses as liquid crystal lens 3 d display device:
As shown in Figure 5, the voltage of the first common electrode is set to zero, at the first electrode 1003 of each liquid crystal lens unit intersection (as 10031,10032 and 10038,10039 etc.) with on the second electrode 1005 (as 10051 and 10058 etc.) do not apply voltage or apply no-voltage, and at other first electrodes 1003 (as 10033,10034,10035,10036 and 10037 etc.) with other second electrodes 1005 (as 10052,10053,10054,10055,10056 and 10057 etc.) on, apply certain identical driving voltage V
1007, this driving voltage V
1007the size liquid crystal molecule that should be enough to the first liquid crystal layer that makes these electrode zones twist and change its initial orientation.For the first liquid crystal layer, liquid crystal molecule now produces two kinds of complete different orientations: the first at each lens unit intersection because the first electrode 1003 is (as 10031, 10032 and 10038, 10039 etc.) with on the second electrode 1005 (as 10051 and 10058 etc.) there is no voltage, the liquid crystal molecule initial orientation that is positioned at this region does not change, from the linearly polarized light of 2D display device 1200 outgoing during by this region liquid crystal layer effective refractive index constant, can not produce phase delay, the polarization direction of former linearly polarized light is constant, because the polarization direction of the first polaroid 1016 is vertical with 2D display device 1200 emergent light polarization directions, therefore this region shows dark state.It two is on the non-marginal position of each liquid crystal lens unit, because the first electrode 1003 is (as 10033,10034,10035,10036 and 10037 etc.) with the second electrode 1005 (as 10052,10053,10054,10055,10056 and 10057 etc.) on, there is certain identical driving voltage V
1007therefore the liquid crystal molecule of this region the first liquid crystal layer 1007 twists, from the linearly polarized light of 2D display device 1200 outgoing enters first liquid crystal layer 1007 in this region, the linearly polarized light of incident can be broken down into two-beam (ordinary light and extraordinary ray), ordinary light and extraordinary ray produce phase delay because of refractive index difference, and then will become elliptically polarized light from the linearly polarized light of 2D display device 1200 outgoing, when elliptically polarized light is by after the first polaroid 1016, become the linearly polarized light parallel with x direction, therefore this region shows bright state.Therefore, be provided with in the above described manner after this voltage, becoming light and dark striped from the light of the first polaroid 1016 outgoing, each lens unit intersection is dark fringe, and is bright fringes at the non-intersection of each lens unit.
Meanwhile, the voltage of the second common electrode 1013 is set to zero, on third electrode 1011, apply a larger voltage, (for the second liquid crystal layer 1015) now, form larger voltage difference in positivity liquid crystal layer both sides, liquid crystal molecule on the strip electrode of each third electrode 1011 (in as Fig. 5 10111 and 10115), its molecular long axis will parallel with direction of an electric field (arranging along z direction).In each liquid crystal lens unit, liquid crystal molecule along with the distance of the strip electrode (as 10111 and 10115) of third electrode 1011, present different arrangements; Concrete, strip electrode (as 10111 and 10115) apart from third electrode 1011 is far away, electric field is more weak, and now, liquid crystal molecule tends to gradually horizontal direction and arranges (major axis that is liquid crystal molecule is parallel with x direction or vertical with direction of an electric field).In each lens unit, because voltage symmetry distributes, the second liquid crystal layer 1015 is along with the variation of electric field intensity presents the gradual change of refractive index, form a lenticule unit, from the linearly polarized light parallel with x direction of the first polaroid 1016 outgoing enters the second liquid crystal layer 1015, can produce the refraction effect of different angles.Because the light from the first polaroid 1016 outgoing is dark state at each lens unit intersection, now the liquid crystal slit being positioned under each liquid crystal lens unit intersection is opened, can reduce crosstalking of lens unit intersection, make whole bore hole 3D 3 d display device 1000 there is optical path difference distribution similar to Figure 6 (being that parabolic type lens light path difference distributes).In addition, user can be according to actual needs, and adjustment the first electrode 1003 and the second electrode 1005 apply voltage and do not execute alive number of electrodes how many, reach best appreciation effect.
3), in the time that bore hole 3D 3 d display device 1000 uses as liquid crystal slit grating:
As shown in Fig. 7 and Fig. 3, by the first common electrode 1009, the voltage of the second common electrode 1013 and third electrode 1011 is set to zero, at part the first electrode 1003 (as 10031, 10032, 10033, 10034 and 10036, 10037, 10038, 10039 etc.) with part the second electrode 1005 (as 10051, 10052, 10053 and 10056, 10057, 10058 etc.) on, do not apply voltage or apply no-voltage, and apply certain identical driving voltage V on other first electrodes 1003 (as 10035 etc.) and other second electrodes 1005 (as 10054 and 10055 etc.)
1007, this driving voltage V
1007the size liquid crystal molecule that should be enough to the first liquid crystal layer 1007 that makes these electrode zones twist and change its initial orientation.For the first liquid crystal layer 1007, liquid crystal molecule now produces two kinds of complete different orientations: the first is not executed alive the first electrode 1003 (as 10031 at those, 10032, 10033, 10034 and 10036, 10037, 10038, 10039 etc.) and the second electrode 1005 is (as 10051, 10052, 10053 and 10056, 10057, 10058 etc.) on, the liquid crystal molecule initial orientation in this region does not change, from the linearly polarized light of 2D display device 1200 outgoing during by this region the first liquid crystal layer 1007 effective refractive index constant, can not produce phase delay, the polarization direction of former linearly polarized light is constant, because the polarization direction of the first polaroid 1016 is vertical with 2D display device 1200 emergent light polarization directions, therefore this region shows dark state.Its two are first electrodes 1003 (as 10035 etc.) of having applied voltage at those with other second electrodes 1005 (as 10054 and 10055 etc.) on, these region first liquid crystal layer 1007 liquid crystal molecules twist, from the linearly polarized light of 2D display device 1200 outgoing enters first liquid crystal layer 1007 in this region, the linearly polarized light of incident can be broken down into two-beam (ordinary light and extraordinary ray), ordinary light and extraordinary ray produce phase delay because of refractive index difference, and then will become elliptically polarized light from the linearly polarized light of 2D display device 1200 outgoing, when elliptically polarized light is by after the first polaroid 1016, become the linearly polarized light parallel with x direction, therefore this region shows bright state.Therefore, under this voltage arranges, become light and dark striped from the light of the first polaroid 1016 outgoing, owing to not executing alive the first electrode 1003 and the second electrode 1005 quantity are more, and the first electrode 1003 and second electrode 1005 negligible amounts of voltage are applied, therefore from the light of the outgoing of the first polaroid 1016 outgoing, dark fringe is wide and bright fringes is narrower, forms a liquid crystal slit grating.User can be according to the size of liquid crystal slit grating aperture opening ratio, adjusts the first electrode 1003 and the second electrode 1005 and applies voltage and do not execute alive quantity.
4), in the time that bore hole 3D 3 d display device 1000 uses as liquid crystal lens 3 d display device:
Embodiment 2
Fig. 8 is bore hole 3D 3 d display device 1,000 second embodiment sectional views, different from above-described embodiment 1 is, in the just side to second substrate 1002 of tetrabasal 1030, the third electrode 1011 forming is not only positioned at the intersection of each liquid crystal lens unit, and is distributed in each lens unit inside.With reference to Fig. 8 and Fig. 9, in each lens unit, taking L1 as example, third electrode 1011 comprises as 10111,10112, multiple strip electrodes such as 10113,10114,10115, and each electrode has and equates or width not etc. extending along y direction.By multiple electrodes being set in each inside, liquid crystal lens unit, and on each electrode, apply the driving voltage varying in size, make liquid-crystal refractive-index in each liquid crystal lens unit present the trend of gradual change, liquid crystal lens optical path difference distributes and more approaches desirable parabolic type lens, first liquid crystal layer 1007 driving methods (be above-mentioned 3) of collocation described in Fig. 7, the concrete method to set up in the time that bore hole 3D 3 d display device 1000 uses as liquid crystal slit grating) reduce 3D display device and crosstalk, comfort level is viewed and admired in raising.
Embodiment 3
Figure 10 is bore hole 3D 3 d display device 1000 the 3rd embodiment sectional view, compare with above-described embodiment 1, be provided with in this embodiment upper and lower two polaroids, just a side of 2D display device 1200 is provided with to the second polaroid 1017 at first substrate 1001, the polarization direction of the second polaroid 1017 is parallel to y direction, and in Figure 10, the double-head arrow oblique line on second polaroid 1017 places the right represents that the polarization direction of emergent light of the second polaroid 1017 is parallel with y direction; The polarization direction that just a side of second substrate 1002 is being provided with to the first polaroid 1016, the first polaroids 1016 at the 3rd substrate 1008 is parallel to x direction, and the polarization direction of the first polaroid 1016 and the second polaroid 1017 is orthogonal.The object that the first polaroid 1016 is set is here to prevent the angular error of bringing when 3D light-splitting device 1100 and 2D display device 1200 are assembled, cause the emergent light polarization direction of 2D display device 1200 and the polarization direction of the first polaroid 1016 can not completely vertically cause that contrast reduces, and reaches by the first polaroid 1016 object of improving 3D display device overall contrast.
The first embodiment using taking bore hole 3D 3 d display device 1000 as liquid crystal lens 3 d display device is as example, with reference to Figure 11, because the first polaroid 1016 of 3D light-splitting device 1100 is orthogonal with the emergent light polarization direction of 2D display device 1200, do not apply voltage on 3D light-splitting device 1100 time, whole 3D light-splitting device 1100 is equivalent to the liquid crystal panel of a normal black pattern.When needs carry out 2D while showing, on the first common electrode 1009, the second common electrode 1013 and third electrode 1011, do not apply voltage or molecular orientation that the voltage that applies is zero, the second liquid crystal layer 1015 all keeps initial orientation; And apply a larger driving voltage V on the first electrode 1003 and the whole electrodes of the second electrode 1005
1007for the first liquid crystal layer 1007, from the linearly polarized light of 2D display device 1200 outgoing enters the first liquid crystal layer 1007, the linearly polarized light of incident can be broken down into two-beam (ordinary light and extraordinary ray), ordinary light and extraordinary ray produce phase delay because of refractive index difference, and then will become elliptically polarized light from the linearly polarized light of 2D display device 1200 outgoing, when elliptically polarized light is by after the first polaroid 1016, become the linearly polarized light parallel with x direction.When this linearly polarized light passes through the second liquid crystal layer 1015, direction of vibration is parallel with long axis of liquid crystal molecule, during by the second liquid crystal layer 1015, does not reflect, and the optical characteristics of former 2D display device 1200 is substantially unaffected, still has the characteristic such as higher brightness and contrast.
As Figure 12, in the time that needs carry out 3D demonstration, the voltage applying on the first common electrode 1009 and the second common electrode 1013 is zero (or not applying voltage), apply corresponding driving voltage at other electrodes as on the first electrode 1003, the second electrode 1005 and third electrode 1011, make whole 3D light-splitting device 1100 form a liquid crystal lens, after liquid crystal lens, be refracted to respectively different directions from the light of 2D display device 1200 outgoing.Taking four viewpoints as example, in the time that audience's right and left eyes lays respectively at the position such as 1 and 2,2 and 3 and 3 and 4, can watch 3D image.
As Figure 13, in the time that needs carry out 3D demonstration, the voltage applying on the first common electrode 1009 and the second common electrode 1013 is zero, be positioned on the first electrode 1003 of each lens unit intersection and the partial electrode of the second electrode 1005 and do not apply voltage, and on the first electrode 1003 of the non-intersection of each lens unit and the partial electrode of the second electrode 1005, and on third electrode 1011, apply the driving voltage of corresponding size, not only can reflect to all directions by liquid crystal lens from the light of 2D display device 1200 outgoing, at each lens unit intersection, due to formation dark fringe from the light of 2D display device 1200 outgoing passes through the first polaroid 1016, as the light a in Figure 15, b, c, d, e, f etc. are blocked, play certain interception at each lens unit intersection, can reduce between each liquid crystal lens unit because of crosstalking that optical path difference distributional difference causes, realizing better 3D shows.
As Figure 14, in the time that needs carry out 3D demonstration, the first common electrode 1009, the voltage of the second common electrode 1013 and third electrode 1011 is all set to zero, and the partial electrode of the first adjacent electrode 1003 and the partial electrode of the second electrode 1005 are applied to corresponding big or small driving voltage, electrode remaining the first electrode 1003 and the remaining electrode of the second electrode 1005 are not applied to voltage, from the light of 2D display device 1200 outgoing after the first liquid crystal layer 1007 and the first polaroid 1016, emergent light is rendered as chequered with black and white striped, become liquid crystal lens 3 d display device.Apply or not execute alive number of electrodes how many aperture opening ratio size that can adjustable liquid crystal display lens 3 d display device according to the first electrode 1003 and the second electrode 1005.
As shown in figure 15, after liquid crystal slit grating, can watch 3D to show from the light of 2D display device 1200 outgoing in corresponding position.Taking four viewpoints as example, when audience's right and left eyes lays respectively at 1 and 2,2 and 3 and 3 and when 4 position, still can watch 3D image.Wherein, the display effect of 3D image can, according to the size setting of liquid crystal slit grating aperture opening ratio, can realize less crosstalking, but compares liquid crystal lens 3 d display device (Figure 12 and Figure 13), and 3D now shows that overall brightness is lower.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a bore hole 3D 3 d display device, is characterized in that, comprising: 2D display device and be placed in the display screen of described 2D display device before, and the 3D light-splitting device to described display screen just;
Described 3D light-splitting device comprise towards away from described 2D display device direction successively just to arrange first substrate, the 3rd substrate, tetrabasal and second substrate;
On described first substrate, be provided with the first electrode, on described the first electrode, be provided with the second electrode; Between described the second electrode and described the 3rd substrate, be provided with the first liquid crystal layer;
Described the 3rd substrate is just to being provided with the first polaroid in a side of described tetrabasal; The polarization direction of described the first polaroid is mutually vertical with the polarization direction of the emergent light of described 2D display device; On described tetrabasal, be provided with third electrode; Between described third electrode and described second substrate, be provided with the second liquid crystal layer; Wherein, the polarity of the liquid crystal material of described the first liquid crystal layer is contrary with the polarity of the liquid crystal material of described the second liquid crystal layer.
2. device according to claim 1, is characterized in that, described the 3rd substrate is just to being provided with the first common electrode in a side of described first substrate; Described second substrate is just to being provided with the second common electrode in a side of described tetrabasal.
3. device according to claim 2, is characterized in that, described the second electrode is just to being provided with the first vertical alignment layer in a side of described the 3rd substrate; Described the first common electrode is just to being provided with the second vertical alignment layer in a side of described first substrate; Between described the first vertical alignment layer and described the second vertical alignment layer, be provided with described the first liquid crystal layer; Described the first vertical alignment layer and described the second vertical alignment layer are all for controlling the initial orientation of liquid crystal molecule.
4. device according to claim 2, is characterized in that, described third electrode is just to being provided with the first horizontal alignment film in a side of described second substrate; Described the second common electrode is just to being provided with the second horizontal alignment film in a side of described tetrabasal; Between described the first horizontal alignment film and described the second horizontal alignment film, be provided with described the second liquid crystal layer; Described the first horizontal alignment film and described the second horizontal alignment film are all for controlling the initial orientation of liquid crystal molecule.
5. device according to claim 2, is characterized in that, described 3D light-splitting device is divided into multiple liquid crystal lens unit on the length direction along described first substrate;
Each described liquid crystal lens unit comprises multiple described the first electrodes and multiple described the second electrode, and adjacent described liquid crystal lens unit shares same described the first electrode at its intersection; Wherein, described the first electrode has identical width with described the second electrode, and described the first electrode and described the second electrode are being crisscross arranged along being parallel in the first vertical direction of described 2D display device;
Between adjacent described the first electrode and between adjacent described the second electrode, be provided with same predetermined interval, and described the first electrode and described the second electrode all extend along the second vertical direction that is parallel to described 2D display device;
Described the first electrode, described the second electrode and described third electrode are strip electrode.
6. device according to claim 5, is characterized in that, at the intersection of adjacent described liquid crystal lens unit, is provided with two described third electrodes on described tetrabasal; Wherein, between adjacent described third electrode, be provided with predetermined width, and described third electrode extends along the second vertical direction that is parallel to described 2D display device.
7. device according to claim 6, is characterized in that, in inside, each described liquid crystal lens unit, is provided with multiple described third electrodes on described tetrabasal; Wherein, inside, described liquid crystal lens unit does not comprise described intersection.
8. device according to claim 1, is characterized in that, described 3D light-splitting device also comprises the second polaroid; Described first substrate is just to being provided with described the second polaroid in a side of described 2D display device; Wherein, the polarization direction of described the first polaroid and described the second polaroid is orthogonal.
9. device according to claim 1, is characterized in that, described the first electrode is just to being provided with the first dielectric layer in a side of described the 3rd substrate, and described the first dielectric layer is just to being provided with described the second electrode in a side of described the 3rd substrate.
10. device according to claim 1, it is characterized in that, described 3D light-splitting device also comprises: for encapsulating the sealed plastic box of described the first liquid crystal layer periphery, for encapsulating the sealed plastic box of described the second liquid crystal layer periphery and for controlling the spacer that liquid crystal cell is thick.
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