CN102314018B - 3 d display device and preparation method thereof - Google Patents
3 d display device and preparation method thereof Download PDFInfo
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- CN102314018B CN102314018B CN201110258801.4A CN201110258801A CN102314018B CN 102314018 B CN102314018 B CN 102314018B CN 201110258801 A CN201110258801 A CN 201110258801A CN 102314018 B CN102314018 B CN 102314018B
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- 230000003287 optical effect Effects 0.000 claims abstract description 33
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- 230000005611 electricity Effects 0.000 claims description 2
- 230000010287 polarization Effects 0.000 description 11
- 239000000758 substrate Substances 0.000 description 10
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- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
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Abstract
The invention discloses a kind of 3 d display device and preparation method thereof, described device comprises: the liquid crystal grating of stacked setting and display; Polaroid, between this display and liquid crystal grating, wherein, this polaroid is the polaroid that carries of this display or external polaroid; This liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, and the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer is parallel to the optical axis direction of this polaroid.The alignment direction of the liquid crystal molecule of liquid crystal grating liquid crystal layer of the present invention is parallel with the optical axis direction of this polaroid, when incident light enters this liquid crystal grating through this polaroid, without the component of e light optical axis on liquid crystal molecule, effectively reduces stereo display crosstalk.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of 3 d display device and preparation method thereof.
Background technology
Liquid crystal material is widely used in the every field of 3D display, as 2D/3D switching, 3D liquid crystal slit and liquid crystal lens, is all the changeability utilizing crystal molecule refractive index.The alignment direction of liquid crystal molecule and the polarization direction of incident light have and contact closely, and for the liquid crystal molecule of same alignment direction, the incident light in different polarization direction has different refractive indexes.
Utilize liquid crystal material be liquid crystal slit, liquid crystal lens or 2D/3D switch time, time namely as liquid crystal grating, the structure of general overall 3D liquid crystal display is the rhythmo structure that liquid crystal grating and liquid crystal display superpose up and down, is called 3D liquid crystal display.When 3D liquid crystal display operation, if the alignment direction of liquid crystal molecule is inconsistent the polarization direction of the incident light of coming from liquid crystal display below and liquid crystal grating, described incident light is in the process by liquid crystal molecule in liquid crystal grating, two orthogonal components can be produced propagate, one of them component is parallel with liquid crystal molecule e light optical axis, and another component is perpendicular.Vertical component is when through liquid crystal molecule, and its refractive index is not by the impact of Liquid Crystal Molecules Alignment mode, and therefore when carrying out 3D display, the light of this part component is not just subject to manual control, thus forms crosstalk in display, affects 3D display effect.
In above-mentioned 3D liquid crystal display, the alignment direction of the liquid crystal molecule of upper strata liquid crystal grating is parallel or the orientation of pixel electrode array in vertical liquid crystal grating, can there is an angle Ф (0 ° < Ф < 90 °) between the alignment direction of described liquid crystal molecule and the polarization direction of incident light.Therefore need the alignment direction of liquid crystal molecule in the polarization direction of solution incident light and liquid crystal grating inconsistent, cause the problem of crosstalk.
In existing solution, be generally adopt to add at subnatant crystal display the polarization direction that one deck polaroid or liquid crystal grating change the incident light entering upper strata liquid crystal grating, make it consistent with the alignment direction of liquid crystal molecule in liquid crystal grating.But, increase polaroid and can reduce display brightness, increase the thickness that liquid crystal grating obviously can increase whole display device, also add cost simultaneously.How when ensureing display brightness at the thickness not increasing cost and 3D liquid crystal display, reduce display crosstalk, become the difficult problem needing solution badly.
Summary of the invention
The present invention mainly solve display crosstalk technical matters, be to provide a kind of 3 d display device and preparation method thereof, can when ensure display brightness and when substantially not increasing the thickness of cost and display device reduce display crosstalk problem.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of 3 d display device, comprising: the liquid crystal grating of stacked setting and display; Polaroid, between this display and liquid crystal grating, wherein, this polaroid is the polaroid that carries of this display or external polaroid; This liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, and the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer is parallel to the optical axis direction of this polaroid.
As the further improvement of above-mentioned 3 d display device, this display comprises display pixel array, and the orientation of this liquid crystal grating electrod-array and the orientation shape of display pixel array have angle.
As the further improvement of above-mentioned 3 d display device, this angle is 10 °.
In another embodiment, the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer and the orientation of this liquid crystal grating electrod-array form the angle of 25 ° ~ 75 °.
In another embodiment, the alignment direction angle of the orientation of this liquid crystal grating electrod-array and the liquid crystal molecule of this liquid crystal grating liquid crystal layer is 30 °, 45 ° or 60 °.
As the further improvement of above-mentioned 3 d display device, this display carrying polaroid is liquid crystal display, and the display of this external polaroid is Organic Electricity laser writer or plasma display panel display.
As the further improvement of above-mentioned 3 d display device, this liquid crystal grating is liquid crystal lens grating or liquid crystal slit grating.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the method for making providing a kind of 3 d display device, comprise: step S1, liquid crystal grating and display are provided, this liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, and this display carries polaroid, or this display itself does not have polaroid, when this display itself does not have polaroid, provide external polaroid in addition; Step S2, fits to this liquid crystal grating on this display, and is arranged between this display and liquid crystal grating by this polaroid, and the optical axis direction of this polaroid is parallel with the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer.
As the further improvement of said method, this display comprises display pixel array, and the angle that the orientation of the display pixel array of this display and the orientation of this liquid crystal grating electrod-array are formed is 10 °.
As the further improvement of said method, the alignment direction angle of the orientation of this liquid crystal grating electrod-array and the liquid crystal molecule of this liquid crystal grating liquid crystal layer is 30 °, 45 ° or 60 °.
The invention has the beneficial effects as follows: the alignment direction of the liquid crystal molecule of the liquid crystal grating liquid crystal layer of 3 d display device of the present invention is parallel to the optical axis direction of polaroid between display and liquid crystal grating, when the incident light of the optical axis direction being parallel to this polaroid passes this liquid crystal grating liquid crystal layer, its polarization direction is parallel with the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer, incident light is produced without component on the e light optical axis of liquid crystal molecule, thus effectively reduces the phenomenon of stereo display crosstalk.
Accompanying drawing explanation
Fig. 1 is the structural representation of a 3 d display device of the present invention wherein embodiment;
Fig. 2 is wherein a kind of embodiment structural representation of liquid crystal grating described in Fig. 1;
Fig. 3 is another embodiment structural representation of liquid crystal grating described in Fig. 1;
Fig. 4 is the structural representation of the first display described in Fig. 1;
Fig. 5 is the optical axis direction of the 3rd polaroid described in Fig. 4 and the orientation relation schematic diagram of liquid crystal grating electrod-array;
Fig. 6 is the alignment direction schematic diagram of the liquid crystal molecule of liquid crystal grating liquid crystal layer described in Fig. 1;
Fig. 7 is the structural representation of another embodiment of 3 d display device of the present invention;
Fig. 8 is the structural representation of wherein a kind of embodiment of second display described in Fig. 7;
Fig. 9 is the structural representation of the another kind of embodiment of second display described in Fig. 7;
Figure 10 is the orientation of liquid crystal grating electrod-array described in Fig. 7 and the optical axis direction relation schematic diagram of external polaroid;
Figure 11 is the schematic flow sheet of the method for making of 3 d display device of the present invention;
Figure 12 be the alignment direction of the liquid crystal molecule of liquid crystal grating described in Fig. 7 parallel with the orientation of liquid crystal grating electrod-array time optical path difference curve map; And
Figure 13 be the orientation of the alignment direction of the liquid crystal molecule of liquid crystal grating and liquid crystal grating electrod-array at 45 ° time optical path difference curve map.
Embodiment
Refer to Fig. 1 to Fig. 6,3 d display device first embodiment of the present invention comprises:
The liquid crystal grating 10 of stacked setting and the first display 11.
In the present embodiment, this liquid crystal grating 10 is liquid crystal slit grating, and this liquid crystal slit grating comprises and sequentially arranging:
Upper polaroid 100, lower polaroid 101, upper substrate 102, infrabasal plate 103, top electrode 104, bottom electrode 105, upper alignment film 106, lower alignment film 107 and slit grating liquid crystal layer 108.
This top electrode 104 and this bottom electrode 105 are all strip electrodes, and both orientations are mutually vertical, and this top electrode 104 and this bottom electrode 105 arrange by the direction of certain row or certain row to be combined into slit grating electrod-array;
On this, alignment film 106 and the liquid crystal molecule of this lower alignment film 107 to this slit grating liquid crystal layer 108 sandwiched therebetween carry out orientation, the alignment direction of this liquid crystal molecule (tilt angle) is had angle with the orientation shape of this slit grating electrod-array, this angle is 25 ° ~ 75 °, be preferably 30 °, 45 ° or 60 °, wherein, can be made alignment film on this 106 and this lower alignment film 107 by the mode of friction matching or light orientation, then alignment film on this 106 and this lower alignment film 107 are fitted in upper substrate 102 and bottom electrode 105 respectively, and this slit grating liquid crystal layer 108 is poured between alignment film 106 and this lower alignment film 107 on this.
Refer to Fig. 3, in another embodiment, this liquid crystal grating 10 is liquid crystal lens grating, and this liquid crystal lens grating comprises:
First substrate 200, second substrate 201, first electrode 202, second electrode 203 and lenticulation liquid crystal layer 204, wherein, this first substrate 200, first electrode 202, lenticulation liquid crystal layer 204, second electrode 203 and this second substrate 201 sequentially stacked setting;
This first electrode 202 and this second electrode 203 are strip electrode, and both orientations are mutually vertical, and this first electrode 202 and this second electrode 203 arrange by the direction of certain row or certain row to be combined into lenticulation electrod-array;
Certainly, the first alignment film (not shown) is also comprised between this first electrode 202 and this lenticulation liquid crystal layer 204, equally, also comprise the second alignment film (not shown) between this second electrode 203 and this lenticulation liquid crystal layer 204, this first alignment film and this second alignment film are made by light orientation or friction matching and obtain.As previously mentioned, this first alignment film and this second alignment film make the orientation shape of the alignment direction of the liquid crystal molecule of this lenticulation liquid crystal layer 204 and this lenticulation electrod-array have angle, this angle is 25 ° ~ 75 °, is preferably 30 °, 45 ° or 60 °.
Wherein, for convenience of describing, this slit grating liquid crystal layer 108 and this lenticulation liquid crystal layer 204 are referred to as liquid crystal grating liquid crystal layer.
Refer to Fig. 4, in the present embodiment, this first display 11 is LCD display (LiquidCrystalDisplay, liquid crystal display), and this LCD display comprises:
3rd polaroid 300 of sequentially stacked setting, the 3rd substrate 301, the 3rd electrode 302, liquid crystal display liquid crystal layer 303, the 4th electrode 304, tetrabasal 305 and the 4th polaroid 306;
3rd electrode 302 and the 4th electrode 304 arrange by the direction of certain row or certain row, 3rd electrode 302 and the 4th electrode 304 are combined into the electrodes for display array of matrix form, and this electrodes for display matrix-like becomes the first corresponding display pixel array;
Certainly, this LCD display also comprises and is located at the 3rd alignment film (not shown) between the 3rd electrode 302 and this liquid crystal display liquid crystal layer 303, is located at the 4th alignment film (not shown) between the 4th electrode 304 and this liquid crystal display liquid crystal layer 303.3rd alignment film and the 4th alignment film carry out rubbing or light orientation obtains.3rd alignment film and the 4th alignment film make the alignment direction of the liquid crystal molecule of the liquid crystal display liquid crystal layer 303 be poured into wherein reach predetermined angle, are not construed as limiting in the present embodiment to the alignment direction of the liquid crystal molecule of this liquid crystal display liquid crystal layer 303.
Refer to Fig. 5 and Fig. 6, in the present embodiment, this liquid crystal grating and this first display stack-up are arranged: when this liquid crystal grating is liquid crystal slit grating, form first angle (being preferably 10 °) of specifying between the orientation of this first display pixel array and the orientation of this slit grating electrod-array; When this liquid crystal grating is liquid crystal lens grating, between the orientation of this first display pixel array and the orientation of this lenticulation electrod-array, form second angle (being preferably 10 °) of specifying.Wherein, describe in conjunction with the embodiments convenient, herein this slit grating electrod-array and this lenticulation electrod-array are referred to as liquid crystal grating electrod-array 1.
The optical axis direction 310 of the 3rd polaroid is parallel to the alignment direction 1122 of the liquid crystal molecule of this liquid crystal grating liquid crystal layer, this liquid crystal grating fits on the 3rd polaroid, and the display light that this LCD display produces forms linearly polarized photon and incides this liquid crystal grating after the 3rd polaroid.Wherein, as shown in Figure 6, the alignment direction 1122 of the liquid crystal molecule of this liquid crystal grating liquid crystal layer 1 has angle with the orientation shape of this lenticulation electrod-array 1, and this angle is 25 ° ~ 75 °, is preferably 30 °, 45 ° or 60 °.
Now, this display light is after the 3rd polaroid outgoing, its polarization direction is parallel with the optical axis direction 310 of the 3rd polaroid, namely the polarization direction of this linearly polarized photon is parallel to the alignment direction 1122 of the liquid crystal molecule of this liquid crystal grating liquid crystal layer, therefore can not produce the component of e light optical axis on liquid crystal molecule, reduce crosstalk phenomenon during stereo display.
Refer to Fig. 7 to Figure 10,3 d display device second embodiment of the present invention comprises: the liquid crystal grating 10 of sequentially stacked setting, external polaroid 13 and second display 12.
As previously mentioned, this liquid crystal grating 10 is this liquid crystal slit grating or this liquid crystal lens grating;
The optical axis direction 110 of this external polaroid 13 is parallel to the alignment direction 1122 of the liquid crystal molecule of this liquid crystal grating liquid crystal layer, wherein, as previously mentioned, the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer and the orientation shape of this liquid crystal grating electrod-array have angle, this angle is 25 ° ~ 75 °, is preferably 30 °, 45 ° or 60 °;
Refer to Fig. 8, in a preferred embodiment, this second display 12 is OLED (OrganicLight-EmittingDiode, Organic Light Emitting Diode) display, and this OLED display comprises:
The negative electrode 120 of sequentially stacked setting, emission layer 121, conductive layer 122, anode 123 and substrate 124;
This negative electrode 120 and this anode 123 are strip electrode, and both are mutually vertical, and this negative electrode 120 and this anode 123 arrange by the direction of certain row or certain row to be combined into OLED display pel array.
Refer to Fig. 9, in a further embodiment, this second display 12 is PDP (PlasmaDisplayPanel, plasma display panel) display, and this PDP display comprises:
The front glass substrate 130 of sequentially stacked setting, public electrode 131, phosphor powder layer 132, address electrode 133 and rear glass substrate 134;
This public electrode 131 and this address electrode 133 are strip electrode, and both are mutually vertical, and this public electrode 131 and this address electrode 133 arrange by certain row or certain row to be combined into PDP display pixel array.
Wherein, for convenience of describing, this OLED display pel array and this PDP display pixel array are referred to as second display pel array herein.
Please again consult Fig. 6 and Figure 10, the beneficial effect of the present embodiment: when the display light of this second display 12 forms linearly polarized photon after this external polaroid 13 outgoing, its polarization direction is parallel with the optical axis direction 110 of this external polaroid 13;
Because the alignment direction 1122 of the liquid crystal molecule of this liquid crystal grating liquid crystal layer is parallel with the optical axis direction 110 of this external polaroid 13, this linearly polarized photon enters this liquid crystal grating 10, its polarization direction is parallel with the alignment direction 1122 of this liquid crystal molecule, this linearly polarized photon without the component of e light optical axis, reduces crosstalk phenomenon during stereo display on this liquid crystal molecule.
See also Figure 11, Figure 11 is the schematic flow sheet of the method for making of 3 d display device of the present invention.
The method for making of 3 d display device of the present invention comprises:
Step S1, provides liquid crystal grating and display, and this liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, this display carries polaroid, or this display itself does not have polaroid, when this display itself does not have polaroid, provide external polaroid in addition;
Step S2, fits to this liquid crystal grating on this display, and is arranged between this display and liquid crystal grating by this polaroid, and the optical axis direction of this polaroid is parallel with the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer.
In the present embodiment, this display comprises display pixel array, and the angle that the orientation of the orientation of this display pixel array and this liquid crystal grating electrod-array is formed is 10 °, certainly, also can be 15 ° or 20 °.
In the present embodiment, the angle that the alignment direction of the liquid crystal molecule of this liquid crystal grating liquid crystal layer and the orientation of this liquid crystal grating electrod-array are formed is 30 °, 45 ° or 60 °, but is not limited thereto.
In the present embodiment, the orientation of the orientation of this liquid crystal grating electrod-array and the display pixel array of this display forms the angle of specifying, 3 d display device of the present invention is made can effectively to reduce Morie fringe phenomenon, and the orientation of the liquid crystal molecule of this liquid crystal grating liquid crystal layer is parallel to the optical axis direction of polaroid (or external polaroid), make incident light by the process of this liquid crystal molecule, the component of e light optical axis can not be produced, reduce the crosstalk phenomenon of stereo display.
Refer to Figure 12 and Figure 13, Figure 12 be the alignment direction of the liquid crystal molecule of liquid crystal grating parallel with the alignment direction of liquid crystal grating electrod-array time optical path difference curve map, Figure 13 be the orientation of the alignment direction of the liquid crystal molecule of liquid crystal grating and liquid crystal grating electrod-array at 45 ° time optical path difference curve map.
Software simulation is utilized to emulate, can see from the optical path difference curve comparison of Figure 12 and Figure 13,3 d display device of the present invention when carrying out stereo display, the experiment optical path difference curve that it obtains and the optical axis direction of incident light and the alignment direction of liquid crystal molecule completely the same time optical path difference curve substantially identical.
3 d display device of the present invention and preparation method thereof, by the alignment direction of the liquid crystal molecule of liquid crystal grating liquid crystal layer and the optical axis direction of polaroid parallel, make from this polaroid through incident light enter this liquid crystal grating time, parallel with the alignment direction of the liquid crystal molecule in liquid crystal grating, without the component of e light optical axis, because this reducing crosstalk phenomenon.The present invention, without the need to increasing liquid crystal grating or polaroid, therefore at the thickness substantially not increasing cost and display device, and when ensureing display brightness and quality, can reduce the problem of stereo display crosstalk effectively.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a 3 d display device, is characterized in that, comprising:
The liquid crystal grating of stacked setting and display;
Polaroid, between described display and liquid crystal grating, wherein, described polaroid is the polaroid that carries of described display or external polaroid;
Described liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, and the alignment direction of the liquid crystal molecule of described liquid crystal grating liquid crystal layer is parallel to the optical axis direction of described polaroid;
Wherein, the alignment direction of the liquid crystal molecule of described liquid crystal grating liquid crystal layer and the orientation of described liquid crystal grating electrod-array form the angle of 25 ° ~ 75 °;
Described display comprises display pixel array; The orientation of described liquid crystal grating electrod-array and the orientation shape of display pixel array have angle
;
The display light that described display produces forms linearly polarized photon and incides described liquid crystal grating after described polaroid.
2. 3 d display device according to claim 1, is characterized in that: the angle that the orientation of described liquid crystal grating electrod-array and the orientation of display pixel array are formed is 10 °.
3. 3 d display device according to claim 1, is characterized in that: the alignment direction angle of the orientation of described liquid crystal grating electrod-array and the liquid crystal molecule of described liquid crystal grating liquid crystal layer is 30 °, 45 ° or 60 °.
4. 3 d display device according to claim 1, is characterized in that: described in carry polaroid display be liquid crystal display, the display of described external polaroid is Organic Electricity laser writer or plasma display panel display.
5. 3 d display device according to claim 1, is characterized in that: described liquid crystal grating is liquid crystal lens grating or liquid crystal slit grating.
6. a method for making for 3 d display device, is characterized in that, comprising:
Step S1, provides liquid crystal grating and display, and described liquid crystal grating comprises liquid crystal grating electrod-array and liquid crystal grating liquid crystal layer, described display carries polaroid, or described display itself does not have polaroid, when described display itself does not have polaroid, provide a polaroid in addition;
Step S2, fits to described liquid crystal grating on described display, and is arranged between described display and liquid crystal grating by described polaroid, and the optical axis direction of described polaroid is parallel with the alignment direction of the liquid crystal molecule of described liquid crystal grating liquid crystal layer;
Wherein, the alignment direction of the liquid crystal molecule of described liquid crystal grating liquid crystal layer and the orientation of described liquid crystal grating electrod-array form the angle of 25 ° ~ 75 °;
Described display comprises display pixel array; The orientation of described liquid crystal grating electrod-array and the orientation shape of display pixel array have angle;
The display light that described display produces forms linearly polarized photon and incides described liquid crystal grating after described polaroid.
7. method according to claim 6, is characterized in that: the angle that the orientation of the display pixel array of described display and the orientation of described liquid crystal grating electrod-array are formed is 10 °.
8. method according to claim 6, is characterized in that: the alignment direction angle of the orientation of described liquid crystal grating electrod-array and the liquid crystal molecule of described liquid crystal grating liquid crystal layer is 30 °, 45 ° or 60 °.
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| CN102523470A (en) * | 2012-01-08 | 2012-06-27 | 四川大学 | Method for reducing image crosstalk of stereoscopic liquid crystal display of cylindrical lens grating by adopting polarized light element |
| TWI599831B (en) * | 2013-12-17 | 2017-09-21 | 友達光電股份有限公司 | Stereoscopic touch display device |
| CN104834104B (en) * | 2015-05-25 | 2017-05-24 | 京东方科技集团股份有限公司 | 2D/3D switchable display panel, and display method and display device thereof |
| CN106597589B (en) * | 2017-01-25 | 2020-07-31 | 宁波万维显示科技有限公司 | Slit grating and stereoscopic display device |
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| CN101609178A (en) * | 2009-07-09 | 2009-12-23 | 友达光电股份有限公司 | Polarizer, LCD MODULE and LCD stereoscopic display |
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| GB0328005D0 (en) * | 2003-12-03 | 2004-01-07 | Koninkl Philips Electronics Nv | 2D/3D Displays |
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| CN101609178A (en) * | 2009-07-09 | 2009-12-23 | 友达光电股份有限公司 | Polarizer, LCD MODULE and LCD stereoscopic display |
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