CN102636909B - 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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- CN102636909B CN102636909B CN201210143064.8A CN201210143064A CN102636909B CN 102636909 B CN102636909 B CN 102636909B CN 201210143064 A CN201210143064 A CN 201210143064A CN 102636909 B CN102636909 B CN 102636909B
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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 field of stereoscopic display, particularly relate to a kind of there is wide viewing angle liquid crystal slit grating and the 3 d display device of the described liquid crystal slit grating of application.
Background technology
Left eye and the right eye of people have spacing, and cause the visual angle of two to there is fine distinction, the scenery that such difference can allow left eye and right eye observe respectively has parallax slightly, thus forms stereo-picture in the brain of people.
General 3 d display device is when watching, need wearing stereoscopic glasses, make the beholder natively wearing glasses (as spectacles, reading glasses etc.), in order to obtain viewing effect clearly, need two pair of glasses overlapping, make stereo display watch comparatively inconvenience.In addition, due to anaglyph spectacles two mirror pin between width normally fixing, this may make the beholder of different shape of face, can not obtain preferably experience when wearing stereoscopic glasses.Therefore, do not need the bore hole stereo display technique of wearing stereoscopic glasses more and more by people are paid close attention to.
Along with the development of liquid crystal technology, liquid crystal material is widely used in various field.
Liquid crystal slit grating has a wide range of applications, and wherein a kind of typical apply is three-dimensional (3D) display application, and liquid crystal slit grating coordinates display device, the right and left eyes of parallax picture difference oriented users display device shown, thus makes user form stereoscopic vision.The handoff functionality of plane/stereo (2D/3D) picture can also be realized simultaneously, user-friendly.
But, the restriction of angular field of view is there is in liquid crystal slit grating itself as other liquid crystal display devices, just stereoeffect can be seen when only liquid crystal slit grating contrast is larger in angular field of view, when user observes from larger angle, because liquid crystal slit grating contrast reduces, even produce the situation of gray-scale inversion, now cannot be separated right and left eyes image completely, and there is ghost image, cause stereoeffect undesirable, but when user adopts the 3 d display device of liquid crystal slit grating from the viewing of larger angle, due to liquid crystal slit grating poor contrast, right and left eyes image cannot be separated completely, and there is ghost image, stereoeffect is undesirable, this greatly limits the application of stereo display, reduce the stereo vision experience of beholder.
Summary of the invention
The invention provides a kind of liquid crystal slit grating, comprise the first polaroid, first substrate, drive electrode structure, the first both alignment layers, liquid crystal layer, the second both alignment layers, public electrode structure, second substrate and the second polaroid that are cascading, described liquid crystal slit grating also comprises compensate film, described compensate film is arranged on the outside of described first substrate and/or second substrate, compensate the delay of described liquid crystal layer to light, improve the visual angle of described liquid crystal slit grating.
According to a preferred embodiment of the invention, described compensate film comprises the first compensate film, and described first compensate film is arranged on the outside of described first substrate.
According to a preferred embodiment of the invention, described first compensate film comprises one first disk like molecular layer, and the slow axis of the disk like molecule of described first disk like molecular layer becomes 0 degree or 90 degree of angles with the alignment direction of described first both alignment layers.
According to a preferred embodiment of the invention, described first compensate film is any one in C-type compensate film and C+ type compensate film.
According to a preferred embodiment of the invention, described compensate film comprises the second compensate film, and described second compensate film is arranged on the outside of described second substrate.
According to a preferred embodiment of the invention, described second compensate film comprises one second disk like molecular layer, and the slow axis of the disk like molecule of described second disk like molecular layer becomes 0 degree or 90 degree of angles with the alignment direction of described second both alignment layers.
According to a preferred embodiment of the invention, described second compensate film is any one in C-type compensate film and C+ type compensate film.
According to a preferred embodiment of the invention, described drive electrode structure comprises the drive electrode layer of multiple stacked setting, forms the different slit grating of multiple bearing of trend by forming corresponding electric field respectively between described drive electrode layer from described public electrode structure.
The present invention also provides a kind of 3 d display device, comprise display panel and liquid crystal slit grating, described liquid crystal slit grating is arranged on the display surface of described display panel, described liquid crystal slit grating is used for the anaglyph light of the display of described display panel to be directed to predetermined view field space position, thus realize stereo display, described liquid crystal slit grating comprises the first polaroid be cascading, first substrate, drive electrode structure, first both alignment layers, liquid crystal layer, second both alignment layers, public electrode structure, second substrate and the second polaroid, it is characterized in that, described liquid crystal slit grating also comprises compensate film, described compensate film is arranged on the outside of described first substrate and/or second substrate, compensate the delay of described liquid crystal layer to light, improve the visual angle of described liquid crystal slit grating.
According to a preferred embodiment of the invention, described 3 d display device also comprises user tracking device and controller, described user tracking device is used for the position of the relatively described display panel of track user, the positional information of the user that described controller obtains according to user tracking device, adjust the optical characteristics of described liquid crystal slit grating and the display characteristic of described display panel respectively, for the user of this position provides stereo display.。
Compared to prior art, the liquid crystal slit grating of 3 d display device of the present invention comprises the first compensate film and the second compensate film, the slow axis of the first compensate film and the second compensate film becomes 0 degree or 90 degree of angles with its first both alignment layers of closing on respectively with the alignment direction layer of the second both alignment layers, and choosing the first compensate film second compensate film is any one in C-type compensate film and C+ type compensate film, by above-mentioned configuration, the light of the image of the right and left eyes that display panel sends is before and after the transmissive slit of slit grating, postpone to compensate to the light of this image respectively via the second compensate film and the first compensate film, thus make light through liquid crystal slit grating to broader angle refraction, avoid the situation producing gray-scale inversion when with great visual angle, the image of right and left eyes is made still can correctly to project predetermined viewing angle at larger viewing angle, thus improve the stereopsis visual angle of 3 d display device, user is seen under larger visual angle, still sees correct stereo-picture.
Meanwhile, the drive electrode vibrational power flow of liquid crystal slit grating is become double-decker, that is, the first drive electrode layer and the second drive electrode layer.Wherein the strip electrode bearing of trend of the first drive electrode layer is different from the second drive electrode layer, just driving voltage can be applied respectively in the first drive electrode layer and the second drive electrode layer like this by simple driving, to form the slit grating of both direction respectively, thus meet can realize bore hole stereo display in the two directions.And because the distance of the slit grating distance display panel of both direction is consistent, thus make the best viewing location of the stereo display of both direction identical, when the switching in direction carrying out stereo display, do not need beholder shift position, just can obtain identical auto-stereoscopic and experience.3 d display device can not only realize freely switching between plane/stereo display, can also realize two, and notably the stereo display of multiple directions switches, and meets the viewing demand of user's different visual angles.
Further, by the position of the relatively described display panel of user tracking device track user, the positional information of the user that controller obtains according to user tracking device, adjust the optical characteristics of described liquid crystal slit grating and the display characteristic of described display panel respectively, thus the display of stereo-picture can be revised for the user of this position, enable the user of this position obtain best stereo vision experience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of invention 3 d display device.
Fig. 2 is the cross-sectional view of the 3 d display device shown in Fig. 1.
Fig. 3 is the perspective view of the drive electrode structure shown in Fig. 2.
Fig. 4 is the principle schematic that the liquid crystal slit grating shown in Fig. 2 forms slit.
Fig. 5 is the principle schematic that the liquid crystal slit grating shown in Fig. 2 forms another kind of slit.
The principle schematic of slit is formed when Fig. 6 is the 90-degree rotation of the liquid crystal slit grating shown in Fig. 2.
Fig. 7 forms the principle schematic of another kind of slit when being the 90-degree rotation of the liquid crystal slit grating shown in Fig. 2.
Fig. 8 is the structural representation of the 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 drawings and Examples, the present invention is described in detail.
Referring to Fig. 1, is the structural representation of the first embodiment of 3 d display device of the present invention.This 3 d display device 100 provides parallax display frame to direction, specific visual field, and it comprises liquid crystal slit grating 1, display panel 8.
Described display panel 8, for showing stereoscopic parallax picture, generally comprises the pixel cell with matrix structure.Described display panel 8 can be display panels, Plasmia indicating panel, organic electroluminescence display panel etc., unrestricted herein.Be described with display panels in the present embodiment.
Described liquid crystal slit grating 1 is arranged on the display surface of described display panel 8, is directed to predetermined view field space position, thus realizes stereo display with the anaglyph light of the display sent by described display panel 8.
As shown in Figure 1, the light that described display panel 8 sends is after the modulation of liquid crystal slit grating 1, the light of the left-eye image L that described display panel 8 shows is transmitted in the left eye L of observer in space, similar, the light of eye image R is transmitted in the right eye R of observer in space, the right and left eyes of observer receives the left-eye image L and eye image R with parallax respectively, thus forms stereoscopic vision in human brain.
Refer to Fig. 2, Fig. 2 is the section decomposition texture schematic diagram of 3 d display device 100 shown in Fig. 1.
In the present embodiment, described liquid crystal slit grating 1 comprises the first polaroid 10, 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 the second polaroid 18 that are cascading.Further, described liquid crystal slit grating 1 also comprises the first compensate film 101 and the second compensate film 102.
Described first substrate 11 and the opposing parallel setting of second substrate 17, preferably, described first substrate 11 and second substrate 17 are glass substrate, can certainly be the transparency carriers of other material, as long as make light can be through, enumerate herein.
Described drive electrode structure 12 and public electrode structure 16 are arranged at the opposite side inside surface of described first substrate 11 and second substrate 17 respectively.Wherein, described drive electrode structure 12 comprises the first drive electrode layer 121, second drive electrode layer 123 of stacked setting, and is arranged on the insulation course 122 for making the first drive electrode layer 121 and the second drive electrode layer 123 electric insulation each other between the first drive electrode layer 121 and the second drive electrode layer 123.
Please refer to the part-structure schematic perspective view that Fig. 3, Fig. 3 are shown drive electrode structures 12.First drive electrode layer 121 comprises multiple the first bar shaped drive electrode 1211 be arranged in parallel.Multiple first bar shaped drive electrode 1211 is spaced and be arranged in parallel with each other, and arranges along first direction D1.The width of multiple first bar shaped drive electrode 1211 is equal.Spacing between first bar shaped drive electrode 1211 of arbitrary neighborhood can set according to the actual requirements, and especially, the spacing between the first bar shaped drive electrode 1211 of arbitrary neighborhood equals the width of the first bar shaped drive electrode 1211.Similar, the second drive electrode layer 123 comprises multiple the second bar shaped drive electrode 1231 be arranged in parallel, and arranges along second direction D2.The width of multiple second bar shaped drive electrode 1231 is equal.Multiple second bar shaped drive electrode 1231 is spaced and be arranged in parallel with each other, spacing between second bar shaped drive electrode 1231 of arbitrary neighborhood can set according to the actual requirements, especially, the spacing between the second bar shaped drive electrode 1231 of arbitrary neighborhood equals the width of the second bar shaped drive electrode 1231.Usually, first direction D1 and second direction D2 is at a certain angle, and especially, first direction D1 and second direction D2 are mutually vertical.
Certainly, in some variant embodiment, can omit the first drive electrode layer 121 or the second drive electrode layer 123 one of them, only adopt the type of drive of one deck drive electrode layer, be not specifically limited at this.
Public electrode structure 16 is plane-shape electrode, is arranged on the inner surface of second substrate 17.
Preferably, drive electrode structure 12 and public electrode structure 16 are transparency conducting layer, such as can be indium tin oxide (Indium Tin Oxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO), do not enumerate herein.
Further, because described display panel 8 is generally the form of matrix pixel arrangement, first direction D1 or second direction D2 can be parallel to the orientation of display panel 8 pixel, in order to optimize display effect further, reduce the optical interference between liquid crystal slit grating 1 and display panel 8, first direction D1 and second direction D2 can be made at a certain angle with the orientation of display panel 8 pixel respectively, to reduce the generation of the phenomenons such as moir patterns, improve display effect.
Liquid crystal layer 14 is arranged between drive electrode structure 12 and public electrode structure 16, first both alignment layers 13 is arranged between liquid crystal layer 14 and drive electrode structure 12, second both alignment layers 15 is arranged between liquid crystal layer 14 and public electrode structure 16, first both alignment layers 13 is vertical with the alignment direction of the second both alignment layers 15, thus can carry out alignment effect to the liquid crystal molecule in liquid crystal layer 12.
Include the liquid crystal molecule of nematic in liquid crystal layer 14, under the alignment effect of the first both alignment layers 13 and the second both alignment layers 15, nematic liquid crystal molecules 141 forms aligned twisted structure as shown in Figure 2.
First polaroid 10 is arranged on the outside of first substrate 11, namely relative with the first alignment film 13 side, and the polarization direction of the first polaroid 10 is parallel with the first alignment film 13.Second polaroid 18 is arranged on the outside of second substrate 17, namely relative with the second alignment film 15 side, and the polarization direction of the second polaroid 18 is parallel with the second alignment film 15.Certainly, in some follow-on design, the first polaroid 10 and the second polaroid 18 also can be arranged on the inner side of first substrate 11 and second substrate 17, are not specifically limited at this.
In the embodiment shown in Figure 2, the alignment direction of the first both alignment layers 13, the polarization direction of the first polaroid 10 all extend along the first bearing of trend; The alignment direction of the second both alignment layers 15, the polarization direction of the second polaroid 18 all extend along the second bearing of trend.Preferably, the first bearing of trend is mutually vertical with the second bearing of trend.
First compensate film 101 is arranged on the outside of the first polaroid 10.First compensate film 101 comprises disk like molecule in one first disk like molecular layer 1011, first disk like molecular layer 1011 according to certain aligned transfer and expands the visual angle of the emergent light of first substrate 11, realizes the effect expanding display view angle.The refractive index of three main shafts of the disk like molecule in the first disk like molecular layer 1011 is n respectively
x, n
yand n
z, wherein, n
x, n
ybe parallel to the refractive index of the mutually orthogonal both direction of disk like molecule place plane, n
zbe perpendicular to the refractive index in a direction of disk like molecule place plane.First compensate film 101 can be C-type compensate film or C+ type compensate film.When the first compensate film 101 is C-type compensate film, meet n
z>n
x=n
y; When the first compensate film 101 is C+ type compensate film, meet n
z<n
x=n
y.And the slow-axis direction of the first compensate film 101 and its proximity orientation layer frictional direction are 0 degree or an angle of 90 degrees degree.Concrete, the slow axis of the first compensate film 101 and the alignment direction of the first both alignment layers 13 are 0 degree or an angle of 90 degrees degree.
In other variant embodiment, the first compensate film 101 can also be arranged between the first polaroid 10 and first substrate 11, as long as be arranged on the position between first substrate 11 and user, is not specifically limited at this.
First compensate film 101 can also comprise base material (not shown) for carrying the first disk like molecular layer 1011 and for orientation and the alignment film (not shown) of fixing the first disk like molecular layer 201, not repeat at this.
Second compensate film 102 is arranged on the outside of the second polaroid 18, and it comprises disk like molecule in one second disk like molecular layer 1021, second disk like molecular layer 1021 according to certain aligned transfer.The refractive index of three main shafts of the disk like molecule in the second disk like molecular layer 1021 is n respectively
x, n
yand n
z, wherein, n
x, n
ybe parallel to the refractive index of the mutually orthogonal both direction of the second disk like molecule place plane, n
zbe perpendicular to the refractive index in a direction of the second disk like molecule place plane.Second compensate film 102 can be C-type compensate film or C+ type compensate film, when the second compensate film 102 is C-type compensate film, meets n
z>n
x=n
y; When the second compensate film 102 is C+ type compensate film, meet n
z<n
x=n
y.And the slow-axis direction of the second compensate film 102 and its proximity orientation layer frictional direction are 0 degree or an angle of 90 degrees degree.Concrete, the slow axis of the second compensate film 102 and the alignment direction of the second both alignment layers 15 are 0 degree or an angle of 90 degrees degree.
In other variant embodiment, the second compensate film 102 can also be arranged between the second polaroid 18 and first substrate 17, is not specifically limited at this.
Second compensate film 102 can also comprise base material (not shown) for carrying the first disk like molecular layer 1021 and for orientation and the alignment film (not shown) of fixing the second disk like molecular layer 1021, not repeat at this,
In embodiment shown in Fig. 2, display panel 8 is display panels, and exiting surface comprises a polaroid 81, general, and the polarization direction of polaroid 81 is parallel with the polarization direction of the second polaroid 18 of liquid crystal slit grating 1.When the polarization direction of polaroid 81 and the second polaroid 18 is nonparallel time, phase shift films can be added between polaroid 81 and the second polaroid 18 of liquid crystal slit grating 1, with adjust display panel 8 to go out light polarization direction parallel with the polarization direction of the second polaroid 18.
Refer to Fig. 4, Fig. 4 is the principle schematic that liquid crystal slit grating 1 shown in Fig. 2 forms slit.Public electrode structure 16 applies common electric voltage, first drive electrode layer 121 is unsettled, the mode of 1+1 is adopted to apply driving voltage in the second drive electrode layer 123, namely second drive electrode 1231 applies driving voltage, adjacent second drive electrode 1231 applies the driving voltage equal with common electric voltage, thus between the second drive electrode layer 123 and public electrode structure 16 electric field at bar shaped interval between bar shaped, the liquid crystal molecule in liquid crystal layer 14 is driven to arrange according to direction of an electric field, light can not through the second drive electrode 1231 region being applied with driving voltage, and can through the second drive electrode 1231 region being applied with common electric voltage, thus form transmissive slit alternately and shading slit (or being called light and shade striped).Because the ratio of the second drive electrode 1231 applying driving voltage and common electric voltage is 1:1, that the transmissive slit of formation is corresponding to shading slit is also 1:1.
Because driving voltage is applied to the 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 coordinates display panel to realize the method for stereo display known by the art those skilled in the art, do not repeat them here.
Refer to Fig. 5, accordingly, when needing to adjust the ratio of transmissive slit and shading slit according to the display of stereo-picture, the quantity of applying driving voltage in the second drive electrode layer 123 and common electric voltage can be adjusted, such as adopt the type of drive of 3+1, shading slit can be formed and transmissive slit ratio is: the liquid crystal slit (shown in Fig. 5) of 3:1.By above-mentioned configuration, the free adjustment of the ratio of the slit location of liquid crystal slit grating 1, direction and transmissive slit and shading slit can be realized.
Now, by coordinating of liquid crystal slit grating 1 and display panel 8, the image light of the right and left eyes that display panel 8 sends is before and after the transmissive slit of slit grating 1, respectively the light of this image is compensated via the second compensate film 102 and the first compensate film 101, thus make light through liquid crystal slit grating 1 to broader angle refraction, avoid the situation producing gray-scale inversion when with great visual angle, the image of right and left eyes is made still can correctly to project predetermined viewing angle at larger viewing angle, thus improve the stereopsis visual angle of 3 d display device 100.
When 3 d display device 100 rotates about 90 degree of viewings, the slit shown in Fig. 5 can not meet the needs of stereo display, and cannot form stereo display, thus affect stereos copic viewing experience.
The present invention is by following method when 3 d display device 100 rotates about 90, still can realize bore hole stereo display.
Refer to Fig. 6, principle of work schematic diagram when Fig. 6 is the 90-degree rotation of liquid crystal slit grating 1 shown in Fig. 2.
Public electrode structure 16 applies common electric voltage, second drive electrode layer 123 is unsettled, the mode of 1+1 is adopted to apply driving voltage in the first drive electrode layer 121, namely first drive electrode 1211 applies driving voltage, adjacent first drive electrode 1211 applies the driving voltage equal with common electric voltage, thus between the first drive electrode layer 121 and public electrode structure 16 electric field at bar shaped interval between bar shaped, the liquid crystal molecule in liquid crystal layer 14 is driven to arrange according to direction of an electric field, light can not through the first drive electrode 1211 region being applied with driving voltage, and can through the first drive electrode 1231 region being applied with common electric voltage, thus form transmissive slit alternately and shading slit (or being called light and shade striped).Because the ratio of the first drive electrode 1211 applying driving voltage and common electric voltage is 1:1, that the transmissive slit of formation is corresponding to shading slit is also 1:1.
Because driving voltage is applied to the 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.
Refer to Fig. 7, adopt the driving method similar to Fig. 5, can form the liquid crystal slit that the shading slit of bearing of trend D1 and transmissive slit ratio are 3:1, its concrete grammar as described above, repeats no more herein.
Now, when beholder's rotary viewing angle of occurring about 90 degree relative to 3 d display device 100 changes, still can realize bore hole stereo display, improve the stereo vision experience of beholder greatly.
Known by foregoing, because the distance of the slit grating distance display panel 2 of the both direction by driving first bar shaped drive electrode 1211 or the generation of the second bar shaped drive electrode 1231 is consistent, slit grating is equivalent to have rotated certain angle, thus make the best viewing location of the stereo display of both direction identical, thus when the switching in direction carrying out stereo display, do not need beholder shift position, just can obtain identical auto-stereoscopic and experience
Certainly, can angle detection device be set, detects the relative angular relationship of beholder and 3 d display device 100 in real time, according to the actual viewing angle of user, the grating slit of real-time automatic adjustment liquid crystal slit grating 1, for user brings automatic stereos copic viewing to experience.
Refer to Fig. 8, Fig. 8 is the structural representation of the second embodiment of 3 d display device of the present invention.Describe the present embodiment for convenience, in Fig. 8, illustrate only the structural representation of the liquid crystal slit grating 2 in 3 d display device.Liquid crystal slit grating 2 shown in Fig. 8 has similar 26S Proteasome Structure and Function to the liquid crystal slit grating 1 shown in Fig. 2, its key distinction point is: liquid crystal slit grating 2 is only provided with a compensate film 201 in the outside of its first substrate 21 (i.e. user oriented side), and does not arrange compensate film in the outside (i.e. the side of face phase display panel) of its second substrate 27.Be understandable that, compensate film 201 can be arranged on the outside of the first polaroid 20, also can be arranged on the position between first substrate 21 and the first polaroid 20, be not specifically limited at this.Compensate film 201 and the first compensate film 101 shown in Fig. 2 have same or analogous structural and optical characteristic, do not repeat them here.
Refer to Fig. 9, Fig. 9 is the structural representation of the 3rd embodiment of 3 d display device of the present invention.Describe the present embodiment for convenience, in Fig. 9, illustrate only the structural representation of the liquid crystal slit grating 3 in 3 d display device.Liquid crystal slit grating 3 shown in Fig. 9 has similar 26S Proteasome Structure and Function to the liquid crystal slit grating 1 shown in Fig. 2, its key distinction point is: liquid crystal slit grating 3 is only provided with a compensate film 302 in the outside of its second substrate 37 (i.e. the side of face phase display panel), and does not arrange compensate film in the outside (i.e. user oriented side) of its first substrate 31.Be understandable that, compensate film 302 can be arranged on the outside of the second polaroid 38, also can be arranged on the position between second substrate 37 and the second polaroid 38, be not specifically limited at this.Compensate film 302 and the second compensate film 102 shown in Fig. 2 have same or analogous structural and optical characteristic, do not repeat them here.
Refer to 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 select any one liquid crystal slit grating described in Fig. 2, Fig. 8, Fig. 9, display panel 92 and the display panel 2 shown in Fig. 1 have same or analogous 26S Proteasome Structure and Function, can also be the display panels of other any types, be not specifically limited at this.Described user tracking device 93 is for the position of track user, particularly the eyes of user are relative to the position of display panel 92, and the positional information of user is transferred to controller 94, controller 94 adjusts the optical characteristics of liquid crystal slit grating 91 and the display characteristic of display panel 92 respectively according to the position of user, thus best stereo display can be provided to experience for the user of this viewing location.
In the above-described embodiments, only to invention has been exemplary description, but those skilled in the art can carry out various amendment to the present invention without departing from the spirit and scope of the present invention after reading present patent application.
Claims (6)
1. a 3 d display device, comprise display panel and liquid crystal slit grating, described liquid crystal slit grating is arranged on the display surface side of described display panel, described liquid crystal slit grating is used for the anaglyph light of the display of described display panel to be directed to predetermined view field space position, thus realize stereo display, described liquid crystal slit grating comprises the first polaroid be cascading, first substrate, drive electrode structure, first both alignment layers, liquid crystal layer, second both alignment layers, public electrode structure, second substrate and the second polaroid, it is characterized in that, described liquid crystal slit grating also comprises compensate film, described compensate film is arranged on the outside of described first substrate and/or second substrate, compensate the delay of described liquid crystal layer to light, improve the visual angle of described liquid crystal slit grating,
Described compensate film comprises the first compensate film;
Described first compensate film is arranged on the outside of described first substrate; Described first compensate film comprises one first disk like molecular layer, and the slow axis of the disk like molecule of described first disk like molecular layer becomes 0 degree or 90 degree of angles with the alignment direction of described first both alignment layers;
Described first compensate film is any one in C-type compensate film and C+ type compensate film; The refractive index of three main shafts of the disk like molecule in described first disk like molecular layer is n respectively
x, n
yand n
z, wherein, n
x, n
ybe respectively the refractive index of the mutually orthogonal both direction being parallel to disk like molecule place plane, n
zfor the refractive index in a direction perpendicular to disk like molecule place plane;
When described first compensate film is C-type compensate film, n
z> n
x=n
y; When described first compensate film is C+ type compensate film, n
z< n
x=n
y;
The exiting surface of described display panel is provided with a polaroid, between described polaroid and the second polaroid of described liquid crystal slit grating, be provided with phase shift films, for adjust described display panel to go out light polarization direction parallel with the polarization direction of described second polaroid.
2. 3 d display device as claimed in claim 1, it is characterized in that, described compensate film comprises the second compensate film, and described second compensate film is arranged on the outside of described second substrate.
3. 3 d display device as claimed in claim 2, it is characterized in that, described second compensate film comprises one second disk like molecular layer, and the slow axis of the disk like molecule of described second disk like molecular layer becomes 0 degree or 90 degree of angles with the alignment direction of described second both alignment layers.
4. 3 d display device as claimed in claim 3, is characterized in that, described second compensate film is any one in C-type compensate film and C+ type compensate film.
5. 3 d display device as claimed in claim 1, it is characterized in that, described drive electrode structure comprises the drive electrode layer of multiple stacked setting, forms the different slit grating of multiple bearing of trend by forming corresponding electric field respectively between described drive electrode layer from described public electrode structure.
6. 3 d display device as claimed in claim 1, it is characterized in that, also comprise user tracking device and controller, described user tracking device is used for the position of the relatively described display panel of track user, the positional information of the user that described controller obtains according to user tracking device, adjust the optical characteristics of described liquid crystal slit grating and the display characteristic of described 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 |
| CN103389582A (en) * | 2013-07-23 | 2013-11-13 | 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 |
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