CN102636909A - Liquid crystal slit grating and three-dimensional display device - Google Patents
Liquid crystal slit grating and three-dimensional display device Download PDFInfo
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- CN102636909A CN102636909A CN2012101430648A CN201210143064A CN102636909A CN 102636909 A CN102636909 A CN 102636909A CN 2012101430648 A CN2012101430648 A CN 2012101430648A CN 201210143064 A CN201210143064 A CN 201210143064A CN 102636909 A CN102636909 A CN 102636909A
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Abstract
The invention relates to a liquid crystal slit grating, which comprises a first polaroid, a first substrate, a driving electrode structure, a first alignment layer, a liquid crystal layer, a second alignment layer, a public electrode structure, a second substrate and a second polaroid, wherein all above components are overlapped together in sequence. The liquid crystal slit grating is characterized by also comprising a compensation film arranged outside the first substrate and/or the second substrate, wherein the compensation film is used for compensating the delay of the liquid crystal layer for light, and increasing the visual angle of the liquid crystal slit grating. The invention also relates to a three-dimensional display device adopting the liquid crystal slit grating. The liquid crystal slit grating and the three-dimensional display device, disclosed by the invention, have the advantages of wideness in three-dimensional visual angle, and capability of forming three-dimensional display pictures in multiple directions.
Description
Technical field
The present invention relates to liquid crystal slit grating and stereo display field, relate in particular to a kind of liquid crystal slit grating and the 3 d display device of using said liquid crystal slit grating with wide visual angle.
Background technology
People's left eye and right eye have spacing, cause two visual angle to have fine distinction, and the scenery that such difference can let left eye and right eye observe respectively has parallax slightly, thereby in people's brain, forms stereo-picture.
General 3 d display device is when watching; Need wear anaglyph spectacles, the feasible beholder who just wore glasses (like spectacles, reading glasses etc.) originally is in order to obtain viewing effect clearly; Need two pair of glasses are overlapping, make stereo display watch comparatively inconvenience.In addition, because the width between the two mirror pin of anaglyph spectacles is normally fixing, this possibly make the beholder of different shapes of face can not obtain preferable experience when wearing anaglyph spectacles.Therefore, the bore hole stereo display technique that need not wear anaglyph spectacles is more and more paid close attention to by people.
Along with the continuous development of liquid crystal technology, liquid crystal material is widely used in various fields.
The liquid crystal slit grating has widely to be used, and wherein a kind of typical application be that three-dimensional (3D) shows and use, and the liquid crystal slit grating cooperates display device, the right and left eyes of the parallax picture difference oriented users that display device is shown, thus make the user form stereoscopic vision.Can also realize simultaneously the handoff functionality of plane/stereo (2D/3D) picture, user-friendly.
Yet there is the restriction of angular field of view in liquid crystal slit grating itself as other liquid crystal display devices, just can see stereoeffect when only liquid crystal slit grating contrast is big in angular field of view; When the user when observing than wide-angle because liquid crystal slit grating contrast reduces, even produce the situation of gray-scale inversion; Can't separate the right and left eyes image this moment fully; And ghost image occurs, cause stereoeffect undesirable, yet when the user when bigger angle is watched the 3 d display device that adopts the liquid crystal slit grating, because liquid crystal slit grating poor contrast; Can't separate the right and left eyes image fully; And ghost image appears, stereoeffect is undesirable, this has greatly limited the application of stereo display, has reduced beholder's stereoscopic vision and has experienced.
Summary of the invention
The present invention provides a kind of liquid crystal slit grating; Comprise first polaroid, first substrate, drive electrode structure, first both alignment layers, liquid crystal layer, second both alignment layers, public electrode structure, second substrate and second polaroid that are cascading; Said liquid crystal slit grating also comprises compensate film; Said compensate film is arranged on the outside of said first substrate and/or second substrate, compensates the delay of said liquid crystal layer to light, the visual angle of improving said liquid crystal slit grating.
According to a preferred embodiment of the invention, said compensate film comprises first compensate film, and said first compensate film is arranged on the outside of said first substrate.
According to a preferred embodiment of the invention, said first compensate film comprises one first dish shape molecular layer, and the slow axis of the dish shape molecule of the said first dish shape molecular layer becomes 0 degree or 90 degree angles with the alignment direction of said first both alignment layers.
According to a preferred embodiment of the invention, said first compensate film is any one in C-type compensate film and the C+ type compensate film.
According to a preferred embodiment of the invention, said compensate film comprises second compensate film, and said second compensate film is arranged on the outside of said second substrate.
According to a preferred embodiment of the invention, said second compensate film comprises one second dish shape molecular layer, and the slow axis of the dish shape molecule of the said second dish shape molecular layer becomes 0 degree or 90 degree angles with the alignment direction of said second both alignment layers.
According to a preferred embodiment of the invention, said second compensate film is any one in C-type compensate film and the C+ type compensate film.
According to a preferred embodiment of the invention; Said drive electrode structure comprises the drive electrode layer of a plurality of range upon range of settings, through forming the different slit grating of multiple bearing of trend forming corresponding electric field between said drive electrode layer and the said public electrode structure respectively.
The present invention also provides a kind of 3 d display device; Comprise display panel and liquid crystal slit grating; Said liquid crystal slit grating is arranged on the display surface of said display panel, and said liquid crystal slit grating is used for the anaglyph light of the demonstration of said display panel is directed to predetermined locus, visual field, thereby realizes stereo display; Said liquid crystal slit grating comprises first polaroid, first substrate, drive electrode structure, first both alignment layers, liquid crystal layer, second both alignment layers, public electrode structure, second substrate and second polaroid that is cascading; It is characterized in that said liquid crystal slit grating also comprises compensate film, said compensate film is arranged on the outside of said first substrate and/or second substrate; Compensate of the delay of said liquid crystal layer, the visual angle of improving said liquid crystal slit grating to light.
According to a preferred embodiment of the invention; Said 3 d display device also comprises user tracking device and controller; Said user tracking device is used for the position of the said relatively display panel of track user; Said controller is adjusted the optical characteristics of said liquid crystal slit grating and the display characteristic of said display panel respectively according to the user position information that the user tracking device obtains, for the user of this position provides stereo display.。
Compared to prior art; Comprise first compensate film and second compensate film in the liquid crystal slit grating of 3 d display device of the present invention; First compensate film and the slow axis of second compensate film become 0 degree or 90 degree angles with the alignment direction layer of its first both alignment layers of closing on and second both alignment layers respectively; And choose first compensate film, second compensate film and be in C-type compensate film and the C+ type compensate film any one, through above-mentioned configuration, before and after the transmissive slit of the light of the image of the right and left eyes that display panel sends through slit grating; Respectively the ray delay of this image is compensated via second compensate film and first compensate film; Thereby the light through the liquid crystal slit grating is reflected to broader angle, avoid under situation with great visual angle, producing the situation of gray-scale inversion, make the image of right and left eyes still can correctly project predetermined viewing angle at bigger viewing angle; Thereby improve the stereopsis visual angle of 3 d display device, the user is seen under bigger visual angle, still see correct stereo-picture.
Simultaneously, the drive electrode structure of liquid crystal slit grating is arranged to double-decker, that is, and first drive electrode layer and second drive electrode layer.Wherein the strip electrode bearing of trend of first drive electrode layer is different from second drive electrode layer; Just can on first drive electrode layer and second drive electrode layer, apply driving voltage respectively through simple driving like this; To form the slit grating of both direction respectively, can realize bore hole stereo display thereby satisfy on both direction.And because the distance of the slit grating distance display panel of both direction is consistent; Thereby make the best viewing location of stereo display of both direction identical; In the switching of the direction of carrying out stereo display; Do not need the beholder shift position, just can obtain identical bore hole stereoscopic vision and experience.3 d display device not only can be realized freely switching between the plane/stereo demonstration, can also realize two, and very the stereo display of a plurality of directions of person is switched, and has satisfied the demand of watching of user's different visual angles.
Further; Position through the said relatively display panel of user tracking device track user; The user position information that controller obtains according to the user tracking device; Adjust the optical characteristics of said liquid crystal slit grating and the display characteristic of said display panel respectively, thereby can revise the demonstration of stereo-picture, make the user of this position can access best stereoscopic vision experience for the user of this position.
Description of drawings
Fig. 1 is the structural representation of first embodiment of invention 3 d display device.
Fig. 2 is the cross-sectional view of 3 d display device shown in Figure 1.
Fig. 3 is the perspective view of drive electrode structure shown in Figure 2.
Fig. 4 is the principle schematic that liquid crystal slit grating shown in Figure 2 forms slit.
Fig. 5 is the principle schematic that liquid crystal slit grating shown in Figure 2 forms another kind of slit.
Fig. 6 is the principle schematic that forms slit when turning 90 degrees of revolving of liquid crystal slit grating shown in Figure 2.
Fig. 7 is the principle schematic that forms another kind of slit when turning 90 degrees of revolving of liquid crystal slit grating shown in Figure 2.
Fig. 8 is the structural representation of second embodiment of invention 3 d display device.
Fig. 9 is the structural representation of the 3rd embodiment of invention 3 d display device.
Figure 10 is the structural representation of the 4th embodiment of invention 3 d display device.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Seeing also Fig. 1, is the structural representation of first embodiment of 3 d display device of the present invention.This 3 d display device 100 provides parallax display frame to specific visual field direction, and it comprises liquid crystal slit grating 1, display panel 8.
Said display panel 8 is used to show the stereoscopic parallax picture, generally comprises the pixel cell with matrix structure.Said display panel 8 can be for display panels, Plasmia indicating panel, organic electroluminescence display panel etc., and is unrestricted here.Describe with display panels in the present embodiment.
Said liquid crystal slit grating 1 is arranged on the display surface of said display panel 8, is directed to predetermined locus, visual field with the anaglyph light of demonstration that said display panel 8 is sent, thereby realizes stereo display.
As shown in Figure 1; After the modulation of the light that said display panel 8 sends through liquid crystal slit grating 1; The light of the left-eye image L that said display panel 8 shows is transmitted among observer's in the space the left eye L, and similarly, the light of eye image R is transmitted among observer's in the space the right eye R; Observer's right and left eyes receives left-eye image L and the eye image R with parallax respectively, thereby in human brain, forms stereoscopic vision.
See also Fig. 2, Fig. 2 is the section decomposition texture synoptic diagram of 3 d display device 100 shown in Figure 1.
In the present embodiment, said liquid crystal slit grating 1 comprises first polaroid 10 that is cascading, first substrate 11, drive electrode structure 12, first both alignment layers 13, liquid crystal layer 14, second both alignment layers 15, public electrode structure 16, second substrate 17 and second polaroid 18.Further, said liquid crystal slit grating 1 also comprises first compensate film 101 and second compensate film 102.
Said first substrate 11 and the 17 opposing parallel settings of second substrate, preferred, said first substrate 11 and second substrate 17 are glass substrate, can certainly be the transparency carriers of other material, as long as make light to see through, do not enumerate one by one here.
Said drive electrode structure 12 and public electrode structure 16 are arranged at the opposite side inside surface of said first substrate 11 and second substrate 17 respectively.Wherein, Said drive electrode structure 12 comprises first drive electrode layer 121, second drive electrode layer 123 of range upon range of setting, and is arranged on being used between first drive electrode layer 121 and second drive electrode layer 123 and makes first drive electrode layer 121 and second drive electrode layer 123 insulation course 122 of electric insulation each other.
Please consult Fig. 3 simultaneously, Fig. 3 be shown in the part-structure schematic perspective view of drive electrode structure 12.First drive electrode layer 121 comprises a plurality of first bar shaped drive electrodes 1211 that laterally arrange.The a plurality of first bar shaped drive electrode, 1211 spaces and being arranged in parallel with each other, and arrange along first direction D1.The width of a plurality of first bar shaped drive electrodes 1211 equates.Spacing between the first adjacent arbitrarily bar shaped drive electrode 1211 can be set according to the actual requirements, and is special, and the spacing between the first adjacent arbitrarily bar shaped drive electrode 1211 equals the width of the first bar shaped drive electrode 1211.Similarly, second drive electrode layer 123 comprises a plurality of second bar shaped drive electrodes 1231 that laterally arrange, and arranges along second direction D2.The width of a plurality of second bar shaped drive electrodes 1231 equates.The a plurality of second bar shaped drive electrode, 1231 spaces and being arranged in parallel with each other; Spacing between the second adjacent arbitrarily bar shaped drive electrode 1231 can be set according to the actual requirements; Special, the spacing between the second adjacent arbitrarily bar shaped drive electrode 1231 equals the width of the second bar shaped drive electrode 1231.Usually, first direction D1 becomes certain included angle with second direction D2, and is special, and first direction D1 is vertical each other with second direction D2.
Certainly, in some distortion embodiment, can omit first drive electrode layer 121 or second drive electrode layer 123 one of them, only adopt the type of drive of one deck drive electrode layer, do not do concrete qualification at this.
Public electrode structure 16 is planar electrode, is arranged on the inner surface of second substrate 17.
Preferably, drive electrode structure 12 is transparency conducting layer with public electrode structure 16, for example can be indium tin oxide (Indium Tin Oxide, ITO) or indium-zinc oxide (Indium Zinc Oxide IZO), does not enumerate here one by one.
Further; Because said display panel 8 is generally the form that matrix pixel is arranged, first direction D1 or second direction D2 can be parallel to display panel 8 line of pixels column directions, in order further to optimize display effect; Reduce the optical interference between liquid crystal slit grating 1 and the display panel 8; Can make first direction D1 become certain included angle with display panel 8 line of pixels column directions respectively,, improve display effect to reduce the generation of phenomenons such as moir with second direction D2.
Liquid crystal layer 14 is arranged between drive electrode structure 12 and the public electrode structure 16; First both alignment layers 13 is arranged between liquid crystal layer 14 and the drive electrode structure 12; Second both alignment layers 15 is arranged between liquid crystal layer 14 and the public electrode structure 16; First both alignment layers 13 is vertical with the alignment direction of second both alignment layers 15, thereby can carry out alignment effect to the liquid crystal molecule in the liquid crystal layer 12.
Include the liquid crystal molecule of nematic in the liquid crystal layer 14, under the alignment effect of first both alignment layers 13 and second both alignment layers 15, nematic crystal molecule 1 41 forms aligned twisted structure as shown in Figure 2.
First polaroid 10 is arranged on the outside of first substrate 11, a promptly relative side with first alignment film 13, and the polarization direction of first polaroid 10 is parallel with first alignment film 13.Second polaroid 18 is arranged on the outside of second substrate 17, a promptly relative side with second alignment film 15, and the polarization direction of second polaroid 18 is parallel with second alignment film 15.Certainly, in some follow-on design, first polaroid 10 and second polaroid 18 also can be arranged on the inboard of first substrate 11 and second substrate 17, do not do concrete qualification at this.
In the embodiment shown in Figure 2, all extend along first bearing of trend polarization direction of the alignment direction of first both alignment layers 13, first polaroid 10; All extend along second bearing of trend polarization direction of the alignment direction of second both alignment layers 15, second polaroid 18.Preferably, first bearing of trend is vertical each other with second bearing of trend.
First compensate film 101 is arranged on the outside of first polaroid 10.First compensate film 101 comprises one first dish shape molecular layer 1011, thereby the effect of display view angle is realized enlarging in the visual angle that the dish shape molecule in the first dish shape molecular layer 1011 is arranged the emergent light that enlarges first substrate 11 according to certain rules.The refractive index of three main shafts of the dish shape molecule in the first dish shape molecular layer 1011 is respectively n
x, n
yAnd n
z, wherein, n
x, n
yThe refractive index that is parallel to the mutually orthogonal both direction on plane, dish shape molecule place, n
zBe perpendicular to the refractive index of a direction on plane, dish shape molecule place.First compensate film 101 can be C-type compensate film or C+ type compensate film.When first compensate film 101 is C-type compensate film, satisfy n
z>n
x=n
yWhen first compensate film 101 is C+ type compensate film, satisfy n
z<n
x=n
yAnd the slow-axis direction of first compensate film 101 and its proximity orientation layer frictional direction are 0 degree or an angle of 90 degrees degree.Concrete, the alignment direction of the slow axis of first compensate film 101 and first both alignment layers 13 is 0 degree or an angle of 90 degrees degree.
In other distortion embodiment, first compensate film 101 can also be arranged between first polaroid 10 and first substrate 11, so long as the position that is arranged between first substrate 11 and the user gets final product, does not do concrete qualification at this.
First compensate film 101 can also comprise the base material (figure does not show) that is used to carry the first dish shape molecular layer 1011 and be used for orientation and the alignment film of the fixing first dish shape molecular layer 201 (figure does not show), not do at this and give unnecessary details.
Second compensate film 102 is arranged on the outside of second polaroid 18, and it comprises that the dish shape molecules in one second dish shape molecular layer, 1021, the second dish shape molecular layers 1021 arrange according to certain rules.The refractive index of three main shafts of the dish shape molecule in the second dish shape molecular layer 1021 is respectively n
x, n
yAnd n
z, wherein, n
x, n
yThe refractive index that is parallel to the mutually orthogonal both direction on plane, second dish shape molecule place, n
zBe perpendicular to the refractive index of a direction on plane, second dish shape molecule place.Second compensate film 102 can be C-type compensate film or C+ type compensate film, when second compensate film 102 is C-type compensate film, satisfies n
z>n
x=n
yWhen second compensate film 102 is C+ type compensate film, satisfy n
z<n
x=n
yAnd the slow-axis direction of second compensate film 102 and its proximity orientation layer frictional direction are 0 degree or an angle of 90 degrees degree.Concrete, the alignment direction of the slow axis of second compensate film 102 and second both alignment layers 15 is 0 degree or an angle of 90 degrees degree.
In other distortion embodiment, second compensate film 102 can also be arranged between second polaroid 18 and first substrate 17, does not do concrete qualification at this.
Second compensate film 102 can also comprise the base material (figure does not show) that is used to carry the first dish shape molecular layer 1021 and be used for orientation and the alignment film of the fixing second dish shape molecular layer 1021 (figure does not show), do not do at this and gives unnecessary details,
Among the embodiment shown in Figure 2, display panel 8 is a display panels, and exiting surface comprises a polaroid 81, and is general, and the polarization direction of polaroid 81 is parallel with the polarization direction of second polaroid 18 of liquid crystal slit grating 1.When the polarization direction of the polaroid 81 and second polaroid 18 is nonparallel; Can between second polaroid 18 of polaroid 81 and liquid crystal slit grating 1, add phase shift films, with adjustment display panel 8 to go out light polarization direction parallel with the polarization direction of second polaroid 18.
See also Fig. 4, Fig. 4 is the principle schematic that liquid crystal slit grating 1 shown in Figure 2 forms slit.Apply common electric voltage on the public electrode structure 16; First drive electrode layer 121 is unsettled; Adopt the mode of 1+1 to apply driving voltage in second drive electrode layer 123; Promptly one second drive electrode 1231 applies driving voltage, and adjacent one second drive electrode 1231 applies the driving voltage that equates with common electric voltage, thereby at bar shaped electric field at interval between bar shaped between second drive electrode layer 123 and the public electrode structure 16; The liquid crystal molecule that drives in the liquid crystal layer 14 is arranged according to direction of an electric field; Light can not pass second drive electrode, 1231 regions that are applied with driving voltage, and can pass second drive electrode, 1231 regions that are applied with common electric voltage, thereby forms transmissive slit and shading slit (or being called the light and shade striped) alternately.Because applying the ratio of second drive electrode 1231 of driving voltage and common electric voltage is 1:1, the transmissive slit of formation and shading slit also are 1:1 accordingly.
Because driving voltage is applied to second drive electrode layer 123, the transmissive slit of liquid crystal slit and shading slit are parallel to the bearing of trend D2 of the second bar shaped drive electrode 1231.
Because slit grating cooperates display panel to realize that the method for stereo display is known by present technique field those skilled in the art, repeats no more at this.
See also Fig. 5; Accordingly; In the time need adjusting the ratio of transmissive slit and shading slit according to the demonstration of stereo-picture; Can adjust the quantity that applies driving voltage and common electric voltage on second drive electrode layer 123, for example adopt the type of drive of 3+1, can form the shading slit and the transmissive slit ratio is: the liquid crystal slit (shown in Figure 5) of 3:1.Through above-mentioned configuration, can realize the free adjustment of ratio of slit location, direction and transmissive slit and the shading slit of liquid crystal slit grating 1.
At this moment; Through cooperating of liquid crystal slit grating 1 and display panel 8; Before and after the transmissive slit of the image light of the right and left eyes that display panel 8 sends through slit grating 1; Respectively the light of this image is compensated via second compensate film 102 and first compensate film 101, thereby the light through liquid crystal slit grating 1 is reflected to broader angle, avoid under situation with great visual angle, producing the situation of gray-scale inversion; Make the image of right and left eyes still can correctly project predetermined viewing angle, thereby improve the stereopsis visual angle of 3 d display device 100 at bigger viewing angle.
When about 90 degree of 3 d display device 100 rotations are watched, slit shown in Figure 5 can not satisfy the needs of stereo display, and can't form stereo display, experience thereby influence stereos copic viewing.
The present invention be through following method about 90 o'clock of 3 d display device 100 rotation, still can realize bore hole stereo display.
See also Fig. 6, Fig. 6 is the principle of work synoptic diagram when turning 90 degrees that revolves of liquid crystal slit grating 1 shown in Figure 2.
Apply common electric voltage on the public electrode structure 16; Second drive electrode layer 123 is unsettled; Adopt the mode of 1+1 to apply driving voltage in first drive electrode layer 121; Promptly one first drive electrode 1211 applies driving voltage, and adjacent one first drive electrode 1211 applies the driving voltage that equates with common electric voltage, thereby at bar shaped electric field at interval between bar shaped between first drive electrode layer 121 and the public electrode structure 16; The liquid crystal molecule that drives in the liquid crystal layer 14 is arranged according to direction of an electric field; Light can not pass first drive electrode, 1211 regions that are applied with driving voltage, and can pass first drive electrode, 1231 regions that are applied with common electric voltage, thereby forms transmissive slit and shading slit (or being called the light and shade striped) alternately.Because applying the ratio of first drive electrode 1211 of driving voltage and common electric voltage is 1:1, the transmissive slit of formation and shading slit also are 1:1 accordingly.
Because driving voltage is applied to first drive electrode layer 121, the transmissive slit of liquid crystal slit and shading slit are parallel to the bearing of trend D1 of the first bar shaped drive electrode 1211.
See also Fig. 7, adopt the driving method similar with Fig. 5, can form the shading slit of bearing of trend D1 and the liquid crystal slit that the transmissive slit ratio is 3:1, its concrete grammar is as indicated above, repeats no more here.
At this moment, when the rotary viewing angle variation about 90 degree takes place relatively for beholder and 3 d display device 100, still can realize bore hole stereo display, improve beholder's stereoscopic vision greatly and experienced.
Can know through foregoing; Because the distance of the slit grating distance display panel 2 through driving the both direction that the first bar shaped drive electrode 1211 or the second bar shaped drive electrode 1231 produce is consistent; Be equivalent to slit grating has been rotated certain angle, thereby make the best viewing location of stereo display of both direction identical, thereby in the switching of the direction of carrying out stereo display; Do not need the beholder shift position, just can obtain identical bore hole stereoscopic vision and experience
Certainly; Angle detection device can be set, detect the relative angle relation of beholder and 3 d display device 100 in real time, according to user's actual viewing angle; The grating slit of real-time automatic adjustment liquid crystal slit grating 1 is experienced for the user brings automatic stereos copic viewing.
See also Fig. 8, Fig. 8 is the structural representation of second embodiment of 3 d display device of the present invention.Be the convenient present embodiment of describing, only show the structural representation of the liquid crystal slit grating 2 in the 3 d display device among Fig. 8.Liquid crystal slit grating 2 shown in Figure 8 has similar 26S Proteasome Structure and Function with liquid crystal slit grating 1 shown in Figure 2; Its key distinction point is: liquid crystal slit grating 2 only is provided with a compensate film 201 in the outside of its first substrate 21 (being a user oriented side), and in the outside of its second substrate 27 (being a side of face phase display panel) compensate film is not set.It is understandable that compensate film 201 can be arranged on the outside of first polaroid 20, also can be arranged on the position between first substrate 21 and first polaroid 20, do not do concrete qualification at this.Compensate film 201 has same or analogous structure and optical characteristics with first compensate film 101 shown in Figure 2, repeats no more at this.
See also Fig. 9, Fig. 9 is the structural representation of the 3rd embodiment of 3 d display device of the present invention.Be the convenient present embodiment of describing, only show the structural representation of the liquid crystal slit grating 3 in the 3 d display device among Fig. 9.Liquid crystal slit grating 3 shown in Figure 9 has similar 26S Proteasome Structure and Function with liquid crystal slit grating 1 shown in Figure 2; Its key distinction point is: liquid crystal slit grating 3 only is provided with a compensate film 302 in the outside of its second substrate 37 (being a side of face phase display panel), and in the outside of its first substrate 31 (being a user oriented side) compensate film is not set.It is understandable that compensate film 302 can be arranged on the outside of second polaroid 38, also can be arranged on the position between second substrate 37 and second polaroid 38, do not do concrete qualification at this.Compensate film 302 has same or analogous structure and optical characteristics with second compensate film 102 shown in Figure 2, repeats no more at this.
See also Figure 10, Figure 10 is the structural representation of the 4th embodiment of 3 d display device of the present invention.The 3 d display device 900 of the 4th embodiment comprises liquid crystal slit grating 91, display panel 92, user tracking device 93 and controller 94.Wherein, Liquid crystal slit grating 91 can be selected any one liquid crystal slit grating of describing among Fig. 2, Fig. 8, Fig. 9; Display panel 92 has same or analogous 26S Proteasome Structure and Function with display panel 2 shown in Figure 1, can also be the display panel of other any types, does not do concrete qualification at this.Said user tracking device 93 is used for the position of track user; Particularly user's eyes are with respect to the position of display panel 92; And user position information is transferred to controller 94; Controller 94 is adjusted the optical characteristics of liquid crystal slit grating 91 and the display characteristic of display panel 92 respectively according to user's position, thereby can provide best stereo display to experience for the user of this viewing location.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (10)
1. liquid crystal slit grating; Comprise first polaroid, first substrate, drive electrode structure, first both alignment layers, liquid crystal layer, second both alignment layers, public electrode structure, second substrate and second polaroid that are cascading; It is characterized in that said liquid crystal slit grating also comprises compensate film, said compensate film is arranged on the outside of said first substrate and/or second substrate; Compensate of the delay of said liquid crystal layer, the visual angle of improving said liquid crystal slit grating to light.
2. liquid crystal slit grating as claimed in claim 1 is characterized in that said compensate film comprises first compensate film, and said first compensate film is arranged on the outside of said first substrate.
3. liquid crystal slit grating as claimed in claim 2 is characterized in that, said first compensate film comprises one first dish shape molecular layer, and the slow axis of the dish shape molecule of the said first dish shape molecular layer becomes 0 degree or 90 degree angles with the alignment direction of said first both alignment layers.
4. liquid crystal slit grating as claimed in claim 3 is characterized in that, said first compensate film is any one in C-type compensate film and the C+ type compensate film.
5. liquid crystal slit grating as claimed in claim 1 is characterized in that said compensate film comprises second compensate film, and said second compensate film is arranged on the outside of said second substrate.
6. liquid crystal slit grating as claimed in claim 5 is characterized in that, said second compensate film comprises one second dish shape molecular layer, and the slow axis of the dish shape molecule of the said second dish shape molecular layer becomes 0 degree or 90 degree angles with the alignment direction of said second both alignment layers.
7. liquid crystal slit grating as claimed in claim 6 is characterized in that, said second compensate film is any one in C-type compensate film and the C+ type compensate film.
8. liquid crystal slit grating as claimed in claim 1; It is characterized in that; Said drive electrode structure comprises the drive electrode layer of a plurality of range upon range of settings, through forming the different slit grating of multiple bearing of trend forming corresponding electric field between said drive electrode layer and the said public electrode structure respectively.
9. 3 d display device; Comprise display panel and liquid crystal slit grating; Said liquid crystal slit grating is arranged on display surface one side of said display panel, and said liquid crystal slit grating is used for the anaglyph light of the demonstration of said display panel is directed to predetermined locus, visual field, thereby realizes stereo display; It is characterized in that said liquid crystal slit grating is like any described liquid crystal slit grating among the claim 1-8.
10. 3 d display device as claimed in claim 9; It is characterized in that; Also comprise user tracking device and controller, said user tracking device is used for the position of the said relatively display panel of track user, the user position information that said controller obtains according to the user tracking device; Adjust the optical characteristics of said liquid crystal slit grating and the display characteristic of said display panel respectively, for the user of this position provides stereo display.
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| CN102866508A (en) * | 2012-10-12 | 2013-01-09 | 福州大学 | Light-emitting diode (LED) naked eye three-dimensional display device capable of achieving two-dimensional/three-dimensional (2D/3D) switching and manufacturing method thereof |
| CN103969833A (en) * | 2013-02-05 | 2014-08-06 | 鸿富锦精密工业（深圳）有限公司 | Autostereoscopic display device |
| WO2015010402A1 (en) * | 2013-07-23 | 2015-01-29 | 京东方科技集团股份有限公司 | Display device and display method thereof |
| CN105785655A (en) * | 2014-12-23 | 2016-07-20 | 群创光电股份有限公司 | Display panel |
| CN106990629A (en) * | 2017-05-27 | 2017-07-28 | 北京小米移动软件有限公司 | liquid crystal grating, display device and control method |
| WO2024138341A1 (en) * | 2022-12-26 | 2024-07-04 | 京东方科技集团股份有限公司 | Display apparatus and drive method therefor |
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| CN102636909B (en) | 2015-07-08 |
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