CN101477278A - Twisted nematic liquid crystal box and apparatus containing the same - Google Patents
Twisted nematic liquid crystal box and apparatus containing the same Download PDFInfo
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- CN101477278A CN101477278A CNA2008102467910A CN200810246791A CN101477278A CN 101477278 A CN101477278 A CN 101477278A CN A2008102467910 A CNA2008102467910 A CN A2008102467910A CN 200810246791 A CN200810246791 A CN 200810246791A CN 101477278 A CN101477278 A CN 101477278A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1396—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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Abstract
The invention discloses a point-by-point switching distorted nematic liquid crystal (TN) box and a device containing the TN box. The point-by-point switching TN box comprises a first control layer, a second control layer and a distorted liquid crystal. The first control layer comprises two layers of a first electrode and a second electrode which are insulated with each other and have parallel arrangement directions; the second control layer comprises two layers of a third electrode and a fourth electrode which are insulated with each other and have parallel arrangement directions; and the first electrode and the third electrode have vertical arrangement directions. When the first electrode, the second electrode, the third electrode and the fourth electrode have same external voltage, the distorted liquid crystal has natural torsion of 90 degrees between the first control layer and the second control layer. Through the control of external voltage values of the first electrode, the second electrode, the third electrode and the fourth electrode, the TN box can make incident linear polarizing light directly transmit or make the polarization direction of the light twist for 90 degrees, can increase the display area and improve the opening rate and the display quality.
Description
Technical field
(Twisted Nematic, TN) box and comprise the device of this liquid crystal cell relates in particular to a kind of pointwise and switches the TN box and comprise the 2D-3D 3 d display device that the TN box is switched in this pointwise to the present invention relates to twisted nematic liquid crystal.
Background technology
Along with the development of display technique, the use of TN box more and more widely.Figure 1 shows that existing TN box synoptic diagram: glass substrate 11 and glass substrate 12 be arranged in parallel with preset space length, on the inside surface of substrate 11, substrate 12, have transparency electrode 13, transparency electrode 14 respectively, have both alignment layers 15, both alignment layers 16 on the inside surface of transparency electrode 13,14 respectively, and the frictional direction of both alignment layers 15 and both alignment layers 16 is vertical mutually; Between both alignment layers 15 and both alignment layers 16, be full of twisted nematic liquid crystal 17.When not having impressed voltage between transparency electrode 13 and the transparency electrode 14, the state of this TN box as shown in Figure 1, this moment, this TN box linearly polarized light that can make the polarization direction be parallel to light incident side both alignment layers direction was converted to the perpendicular linearly polarized light outgoing in polarization direction of polarization direction and incident ray polarized light; When the impressed voltage of 14 of transparency electrode 13 and transparency electrodes during more than or equal to threshold voltage, the long axis direction of liquid crystal 17 is along direction of an electric field, and this moment, this TN box did not change the polarization state of incident ray polarized light.
In the changeable three-dimensional display of an existing class 2D/3D, a TN box as shown in Figure 1 is set as light shifter in common display screen front, by described TN box is added the polarization direction that threshold voltage is controlled emergent ray, thereby the demonstration that realizes 2D and 3D is switched.Obviously, be that whole screen switches in case this TN box switches, the point that can not carry out 2D/3D switches.
For addressing the above problem, the changeable three-dimensional display of existing another kind of 2D/3D adopts thin film transistor (TFT) (Thin Film Transistor, TFT) the TN box of type is as light shifter, because the TN box of TFT type can carry out the switching controls of pixel, therefore be very easy to the 2D image of local repressentation panel and the switching of 3D rendering and show.But the complex manufacturing technology of TFT, involve great expense, and owing to circuit such as the signal wire that need on transparency carrier, arrange opaque TFT circuit, grid lines, therefore must adopt black matrix to cover the wiring zone, cause effective display area to reduce, aperture opening ratio reduces, and the existence of black matrix may influence the display quality of picture.
Summary of the invention
The object of the present invention is to provide a kind of pointwise switching TN box and use this kind pointwise to switch the 2D-3D 3 d display device of TN box, polarization direction that not only can pointwise switching controls incident ray polarized light, and can increase display area, improve aperture opening ratio, improve display quality.
The invention provides a kind of pointwise and switch the twisted nematic liquid crystal box, comprising: first transparency carrier, several first electrodes, first insulation course, several second electrodes, first both alignment layers, twisted liquid crystal, second both alignment layers, several the 4th electrodes, second insulation course, several third electrodes and second transparency carrier;
Described first transparency carrier is positioned at bottom, and second transparency carrier is positioned at top layer, and described first transparency carrier and second transparency carrier are parallel to each other; Described first electrode is banded, and the described first electrode each interval is arranged on described first transparency carrier; Described first insulation course is covered on described first electrode, and the upper surface of described first insulation course is a plane; Described second electrode is banded, the described second electrode each interval is arranged in the described first insulation course upper surface, and the orientation of described second electrode is parallel to the orientation of described first electrode, and the gap of any two described first electrodes is over against one second electrode; Described first both alignment layers is covered on described second electrode, and the upper surface of described first both alignment layers is a plane; Described third electrode is banded, and described third electrode each interval is arranged in the lower surface of described second transparency carrier, and the orientation of described third electrode is perpendicular to the orientation of described first electrode; Described second insulation course is covered in described third electrode lower surface, and the lower surface of described second insulation course is a plane; Described the 4th electrode is banded, described the 4th electrode each interval is arranged in the described second insulation course lower surface, and the orientation of described the 4th electrode is parallel to the orientation of described third electrode, and the gap of any two described third electrodes is over against one the 4th electrode; Described second both alignment layers is covered in the lower surface of described the 4th electrode, and the lower surface of described second both alignment layers is a plane; Described twisted liquid crystal is between described first both alignment layers and second both alignment layers; The alignment direction of the alignment direction of described first both alignment layers and second both alignment layers is vertical mutually.
Described pointwise is switched the twisted nematic liquid crystal box and is adopted line scanning or column scan mode to drive, and near the retention time of described twisted liquid crystal second state is longer than or equals a scan period; Wherein, described first state is the state that described twisted liquid crystal is arranged when no electric field action, under described first both alignment layers and the second both alignment layers effect naturally, and the molecular long axis direction that described second state is described twisted liquid crystal is fully along the state of arranging perpendicular to the described first transparency carrier direction.
When driving described pointwise and switching the twisted nematic liquid crystal box, in each scan period, by the twisted liquid crystal two end electrodes that is in second state is applied with the last scan period be applied to the voltage reversal on this part twisted liquid crystal two end electrodes voltage, make the described twisted liquid crystal that is in second state switch to first state.
Described pointwise is switched the twisted nematic liquid crystal box and is also comprised and be used for described twisted liquid crystal is enclosed in sealing frame between described first both alignment layers and second both alignment layers.
Described pointwise is switched the twisted nematic liquid crystal box and is also comprised the wadding that is arranged between described first both alignment layers and second both alignment layers, is used to guarantee that the spacing of described first both alignment layers and second both alignment layers is a preset space length.
Described pointwise is switched in the twisted nematic liquid crystal box, and described first, second, third, fourth electrode two ends width along its length all is narrower than the width of middle part.
The embodiment of the invention also provides a kind of 2D-3D 3 d display device, along optical propagation direction, described 2D-3D 3 d display device comprises successively: be used to provide the display panel of image light, pointwise provided by the invention to switch twisted nematic liquid crystal box, single refraction lens arra and birefringent lens array;
The image light that described display panel provides is orthogonal first linearly polarized light in the polarization direction and the direction of propagation; The alignment direction of the both alignment layers of close described display panel one side in the twisted nematic liquid crystal box is switched in described pointwise and the polarization direction of described first linearly polarized light is parallel to each other; Described pointwise is switched the twisted nematic liquid crystal box and is used to make the direct transmission of described first linearly polarized light, or described first linearly polarized light is converted to the orthogonal second linearly polarized light outgoing in polarization direction of polarization direction and described first linearly polarized light; Described single refraction lens arra all comprises planar section and the curvature portion relative with this plane with birefringent lens array, and the curvature portion profile complementation of described single refraction lens arra and birefringent lens array; The combination of described single refraction lens arra and birefringent lens array is used for first linearly polarized light of twisted nematic liquid crystal box outgoing and a kind of plano lens that shows as among second linearly polarized light are switched in described pointwise, and another kind shows as convex lens.
Described single refraction lens arra is the convex lens array, and the refractive index of described single refraction lens arra equals that maximum in the ordinary refraction index of described birefringent lens array and extraordinary ray refractive index refractive index.
Described single refraction lens arra is the convex lens array, and the refractive index of described single refraction lens arra equals that minimum in the ordinary refraction index of described birefringent lens array and extraordinary ray refractive index refractive index.
The TN box is switched in pointwise provided by the invention not only can realize that the independent control of each pixel shows, and the aperture opening ratio height, and non-blind area exists in the big and viewing area of effective display area, and all viewing areas can be carried out 2D/3D and changed.In addition, 2D-3D 3 d display device provided by the invention can be realized the independent control to the sub-pixel of image display panel, and simple in structure, control flexibly, display quality is high.
Description of drawings
Fig. 1 is existing TN box structural representation;
The sectional view of TN box along optical direction switched in a kind of pointwise that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is a structural representation of removing behind first both alignment layers and the twisted liquid crystal first key-course of seeing from second electrode, one side;
Fig. 4 is a structural representation of removing behind second both alignment layers and the twisted liquid crystal second key-course of seeing from the 4th electrode one side;
Fig. 5 is the partial top view that the TN box is switched in pointwise shown in Figure 2;
A kind of 2D-3D 3 d display device structural representation and imaging optical path synoptic diagram thereof that Fig. 6 provides for the embodiment of the invention.
Embodiment
Figure 2 shows that a kind of pointwise that the embodiment of the invention provides switches the sectional view of TN box along optical direction.This pointwise is switched the TN box and is comprised: first key-course, second key-course and the twisted liquid crystal 20 between first key-course and second key-course.Be convenient expression among the figure, the part of only drawing this sectional view is worth illustrating to such an extent that be, when specifically implementing, in the edge of described first key-course and second key-course, employing sealing frame etc. is enclosed in described twisted liquid crystal 20 between described first key-course and second key-course.
Wherein, first key-course comprises: first transparency carrier 21, several first electrodes 22, first insulation course 23, several second electrodes 24 and first both alignment layers 25, and first electrode 22, first insulation course 23, second electrode 24 and first both alignment layers 25 all are transparent.Described first electrode 22 and second electrode 24 are band shape, and the orientation of first electrode 22 and second electrode 24 is parallel to each other.Each first electrode, 22 each interval is arranged on first transparency carrier 21.Described first insulation course 23 is covered in described first electrode, 22 tops and upper surface is a plane.Each second electrode, 24 each interval is formed at described first insulation course, 23 upper surfaces.Have one second electrode 24 directly over any two first electrode 22 gaps, and the width of each second electrode 24 is more than or equal to the spacing between two first electrodes of its below.Described first both alignment layers 25 forms in each second electrode, 24 gap and the upper surface and the upper surface of each second electrode 24 are a plane.
Second key-course comprises: second transparency carrier 26, several third electrodes (can't illustrate among the figure), second insulation course 27, several the 4th electrodes 28 and second both alignment layers 29, and third electrode, second insulation course 27, the 4th electrode 28 and second both alignment layers 29 all are transparent.The similar of second key-course is in first key-course.Described third electrode and the 4th electrode 28 are band shape, and the orientation of third electrode and the 4th electrode 28 is parallel to each other.Each third electrode each interval is arranged on second transparency carrier 26.Described second insulation course 27 is covered in described third electrode top and upper surface is a plane.Each the 4th electrode 28 each interval is formed at described second insulation course, 27 upper surfaces.Have one the 4th electrode 28 directly over any two third electrode gaps, and the width of each the 4th electrode 28 is more than or equal to the spacing between two third electrodes of its below.Described second both alignment layers 29 forms in each the 4th electrode 28 gap and the upper surface and the upper surface of each the 4th electrode 28 are a plane.
Described first key-course is parallel with second key-course.The orientation of described first electrode 22 and described third electrode is vertical mutually, and second electrode, 24 planes of living in and the 4th electrode 28 described interplanar spacings are less than the spacing of 26 of described first transparency carrier 21 and second transparency carriers.In addition, this TN box also comprises the wadding (not shown) that is arranged between described first both alignment layers 25 and second both alignment layers 29, is used to guarantee that the first, two key-course spacing is a preset space length.
Fig. 3 is the structural representation of first key-course that removes second key-course among Fig. 2 and twisted liquid crystal 20 backs, see from second electrode, 24 sides.Fig. 4 is the structural representation of second key-course that removes first key-course and twisted liquid crystal 20 backs, see from the 4th electrode 28 sides.Among Fig. 3, Fig. 4, first electrode 22, second electrode 24, third electrode 30, the 4th electrode 28 is band shape and two ends along its length are signal input part, the width at first electrode 22, second electrode 24, third electrode 30 and the 4th electrode 28 two ends along its length all is narrower than from the width of viewing area, with the input end that prevents each electrode since not mutually insulated input signal is short-circuited at the edge of this pointwise switching TN box.
Figure 5 shows that the partial top view of pointwise switching TN box shown in Figure 2.Wherein be convenient expression, the edge of the TN box that do not draw in the vertical view shown in Figure 5, and 8 the first electrode a1 to a8 that only schematically drawn, 8 second electrode b1 to b8,6 third electrode c1 to c6,6 the 4th electrode d1 to d6.Wherein, first electrode and second electrode edge dot.Below the principle of work of TN box is switched in explanation pointwise shown in Figure 5.
As shown in Figure 5, described the 3rd, the 4th electrode and described first, second electrode overlap, and the TN box is switched in this pointwise be divided into 12 * 16 pixel display area, and the bottom of each pixel region is first key-course, and top is second key-course, and the centre is a twisted liquid crystal.For convenience of description, regard 12 * 16 pixel display area shown in Figure 3 as one 12 * 16 two-dimensional pixel matrix, the row of this two-dimensional pixel matrix are represented first electrode 22 and second electrode 24, and the row of this two-dimensional pixel matrix is represented third electrode 30 and the 4th electrode 28, uses a
IjRepresent i capable (i=1 ..., 12) and j (j=1 ..., 16) pixel display area at row place, then work as a
IjUpper/lower electrode when not having impressed voltage, under the effect of described first both alignment layers 25 and second both alignment layers 29, a
IjIn liquid crystal distortion 90 degree, the polarization direction is parallel to the linearly polarized light of frictional direction of incident substrate through a
IjAfter, emergent light is the polarization direction linearly polarized light vertical with the polarization direction of incident ray polarized light, below describes for convenient, at this moment this a
IjInterior twisted liquid crystal state is called first state; When adding voltage U respectively at synchronization to i column electrode, j row electrode
i, U
jAnd U
iAnd U
jDifference during more than or equal to the threshold voltage of described twisted liquid crystal, a
IjIn the twisted liquid crystal molecule under the electric field force effect, the long axis direction of molecule is along arranging perpendicular to the direction of described first transparency carrier 21 and second transparency carrier 26, this moment a
IjDo not change the linear polarization polarized state of light of incident, below for convenience of description, will this moment this a
IjInterior twisted liquid crystal state is called second state.As seen, by electrode impressed voltage, can realize independent control to mesomorphic state in each pixel display area to the different rows different lines.
In addition, this pointwise is switched the TN box and can also be realized: make liquid crystal in the partial display be in a state among described first state and second state, and the twisted liquid crystal of other display area is in another state among first state and second state.For realizing this function, pointwise provided by the invention is switched the TN box and is adopted the switching controls of lining by line scan or carrying out mesomorphic state by the mode of column scan, and the twisted liquid crystal that the selection of sweep frequency need make this pointwise switch to adopt in the TN box for the time compole that switches to second state from first state near short and retention time second state be longer than or equal a scan period, can make like this that when scanning this pointwise when switching last column of TN box it is that the liquid crystal of second state also is not returned to first state far away that first row that the TN box is switched in this pointwise is changed.Below to switch the TN box with pointwise shown in Figure 5 be a how the example explanation makes the 5th row
53, a
54, a
55, a
56, a
27, a of the 6th row
63, a
64, a
65, a
66, a
67, a of the 7th row
73, a
74, a
75, a
76, a
77, a of eighth row
83, a
84, a
85, a
86, a
87Interior twisted liquid crystal all is second state, and the twisted liquid crystal that makes this pointwise switch all the other positions of TN box simultaneously all is first state.Switch the TN box for pointwise shown in Figure 5, then can when initial, make electrode a1 to a8, b1 to b8, c1 to c6, d1 to d6 keep same input voltage U
0, when lining by line scan, beginning whenever advance line scanning and scanning input voltage from c1 successively is U
1: scanning the 5th synchronization of going to electrode a2, electrode b2, electrode a3, electrode b3 and electrode a4 input pulse voltage U
2, making the overlapping region power-on and power-off potential difference of these electrodes and the 5th column electrode c3 (is U
2-U
1) more than or equal to U
ThWherein, U
ThSwitch the twisted liquid crystal that adopts in the TN box for this pointwise and change the pairing threshold voltage of state, (U
1-U
0) less than U
ThAnd (U
2-U
0) less than U
ThThen this moment a
53, a
54, a
55, a
56, a
57In twisted liquid crystal switch to second state rapidly from first state simultaneously.Similarly, scanning the 6th synchronization of going to electrode a2, electrode b2, electrode a3, electrode b3 and electrode a4 input pulse voltage U
2, make a
63, a
64, a
65, a
66, a
67The two ends electric potential difference more than or equal to U
Th, a then
63, a
64, a
65, a
66, a
67In twisted liquid crystal switch to second state rapidly from first state simultaneously; Scanning the 7th synchronization of going to electrode a2, electrode b2, electrode a3, electrode b3 and electrode a4 input pulse voltage U
2, make a
73, a
74, a
75, a
76, a
77The two ends electric potential difference more than or equal to U
Th, a then
73, a
74, a
75, a
76, a
77In twisted liquid crystal switch to second state rapidly from first state simultaneously; Scanning eighth row synchronization to electrode a2, electrode b2, electrode a3, electrode b3 and electrode a4 input pulse voltage U
2And make a
83, a
84, a
85, a
86, a
87In twisted liquid crystal switch to second state rapidly from first state simultaneously.Because sweep frequency is very high, so when scanning eighth row, a
23, a
54, a
55, a
56, a
57, a
63, a
64, a
65, a
66, a
67, a
73, a
74, a
75, a
76And a
77Pairing liquid crystal almost also not from second state to first state-transition, that is: can think this moment a
53, a
54, a
55, a
56, a
57, a
63, a
64, a
65, a
66, a
67, a
73, a
74, a
75, a
76And a
77In twisted liquid crystal still be in second state, and the twisted liquid crystal that this pointwise is switched in other pixel display area of TN box is in first state.In addition, when the new scan period arrives, be the pixel display area a of second state from first state-transition if need make in the scan period
IjInterior liquid crystal transforms back into first state, then need be when this scan period interscan is capable to i, according to a this moment
IjThe state of interior liquid crystal is simultaneously to the suitable pulse voltage of j row electrode input, so that a
IjThe rapid reverse rotation of major axis of interior liquid crystal is even it transforms back into first state rapidly.Obviously,, just can carry out switching controls, realize the switching display effect that the pointwise switching TN box with the TFT type is equal to the state of twisted liquid crystal that each pixel display area of TN box is switched in this pointwise if adopt above-mentioned scan mode.
Obviously, the TN box is switched in the above-mentioned pointwise that the embodiment of the invention provides not only can realize the pointwise switching controls, in addition, because first electrode and second electrode, third electrode and the 4th electrode all adopt the layered mode setting, and each band electrode signal need not in wiring between each electrode with each pixel two end electrodes voltage of independent control from the input of band electrode two ends, therefore, need not to use black matrix in this pointwise switching TN box, electrode width maximizing in the viewing area, and can carry out region-wide control, with respect to the TN box of TFT type, the effective display area that the TN box is switched in this pointwise is enlarged, aperture opening ratio is significantly improved, and display quality is improved.
The embodiment of the invention also provides a kind of and adopts above-mentioned pointwise to switch the 2D-3D 3 d display device of TN box as switching device shifter, as shown in Figure 6, along optical propagation direction, this device comprises: provide the display panel 61 of image, pointwise provided by the present invention to switch TN box 62, single refraction lens arra 63 and birefringent lens array 64.In addition, 2D-3D 3 d display device shown in Figure 6 also comprises: be used to control the control module 65 that each electrode voltage of TN box 62 is switched in described pointwise.
Described display panel 61 is used to provide the polarization direction and the direction of propagation orthogonal first linearly polarized light.When the emergent light of described display panel 61 is the nonlinear polarization light time, need switches in display panel 61 and described pointwise and add linear polarizer between the TN box 62 so that described linear polarizer outgoing first linearly polarized light.
The polarization direction that described pointwise is switched in the TN box 62 near first linearly polarized light of the alignment direction of both alignment layers in the key-course of a side of described display panel 61 and incident is parallel to each other.This pointwise is switched TN box 62 and is used for making the direct transmission of first linearly polarized light of incident or described first linearly polarized light is converted to the second perpendicular linearly polarized light of polarization direction under the control of described control module 65.Below for convenience of description, establishing pointwise, to switch in the TN box 62 first key-course more identical with the polarization direction of described first linearly polarized light than the alignment direction of approaching described display panel 61, the first both alignment layers of second key-course.Any two the first adjacent electrodes and second electrode that TN box 62 is switched in pointwise are corresponding with single refraction lens.
The refractive index of described single refraction lens arra 63 is n
L,, birefringent lens array 64 has ordinary refraction index n
oWith the extraordinary ray refractive index n
e, and n
l=n
o, n
oN
eThe lens axis direction of described birefringent lens array 64 is identical with the polarization direction of described first linearly polarized light, and double-head arrow is depicted as the lens axis direction of this birefringent lens array 64 among Fig. 6.
What deserves to be explained is, among Fig. 6 be for indicate the first linear polarization polarized state of light that display panel 61 provides and first linearly polarized light after TN box 62 is switched in pointwise polarization state and display panel 61, pointwise are switched have a determining deviation respectively between TN box 62 and the single refraction lens arra 63, during concrete enforcement, described display panel 61, pointwise are switched TN box 62 and can closely be contacted placement with single refraction lens arra 63.In addition, only the annexation of schematically having drawn control module 65 and pointwise switching TN box 62 among Fig. 6, in fact each electrode in 65 pairs of described pointwises switching TN boxes 62 of control module are controlled separately.
Below 4 imaging optical path figure of 2D-3D 3 d display device shown in Figure 6 are described, wherein go up two first linearly polarized lights and reflect at last, following two the first direct transmissions of linearly polarized light specify their principle below.
As can be seen from Figure 6, because need carry out 3D to last two first linearly polarized lights shows, control module 65 makes the liquid crystal that two the first pairing pointwises of linearly polarized light are switched in the pixel display area of TN box 62 work in second state, therefore last two first linearly polarized lights of incident keep former polarization characteristic to pass this pointwise switching TN box 62, then pass single refraction lens arra 63 and incide birefringent lens array 64, this moment is because the polarization direction of first linearly polarized light of incident is parallel with described birefringent lens array 64 optical axis directions, so birefringent lens array 64 is n for the refractive index of this first linear polarization light
e, because the refractive index n of single refraction lens arra 63
lGreater than n
e, first linearly polarized light that therefore is incident in described birefringent lens array 64 reflects on the interface of single refraction lens arra 63 and birefringent lens array 64, and the optical effect of described birefringent lens array 64 shows as convex lens.In this case, this 2D-3D 3 d display device can propagate into two light of final outgoing respectively the left eye and the right eye of human eye, makes human eye see the 3D stereo-picture, and promptly this 2D-3D 3 d display device adopts the 3D mode to show last two light.
Switch following two first linearly polarized lights of TN box 62 for being incident in described pointwise, control module 65 makes the liquid crystal that the pairing pointwise of following two first linearly polarized lights is switched in the pixel display area of TN box 62 work in first state, therefore following two first linearly polarized lights of incident are rotated by 90 degrees by this pointwise switching TN box 62 rear polarizer directions, become the second linearly polarized light outgoing; Described subsequently second linearly polarized light is incident upon described birefringent lens array 64 through described single refraction lens arra 63, this moment, therefore described birefringent lens array 64 was n with respect to the refractive index of this second linearly polarized light because the polarization direction of second linearly polarized light of incident is vertical with the optical axis direction (i.e. the polarization direction of first linearly polarized light) of described birefringent lens array 64
o, because the refractive index n of single refraction lens arra 63
lEqual n
oPromptly the refractive index of single refraction lens arra 63 is identical with the refractive index of birefringent lens array 64 at this moment, therefore this second linearly polarized light does not reflect the described birefringent lens array 64 of the second linearly polarized light straight-line pass at the interface in described single refraction lens arra 63 and birefringent lens array 64.In this case, this 2D-3D 3 d display device adopts the 2D mode to show following two first linearly polarized lights shown in Figure 6.
Single refraction lens arra 63 and birefringent lens array 64 in the 2D-3D 3 d display device shown in Figure 6 can also have other array mode, other single refraction lens arra for example mentioned among the CN201126495 and the array mode of birefringent lens array are not described in detail in this.
The pointwise switching TN box that the embodiment of the invention is provided is used for the 2D-3D 3 d display device, can realize independent control to the single pixel of image display panel, also can control a plurality of pixels of image display panel, not only realization is simple, control is flexible, and can significantly improve the display quality of 2D-3D 3 d display device.
Above-mentioned embodiment only is schematic; rather than restrictive, those skilled in the art is not breaking away under the scope situation that this method aim and claim protect under the enlightenment of this method; can also make a lot of distortion, these all belong within protection scope of the present invention.
Claims (9)
1, the twisted nematic liquid crystal box is switched in a kind of pointwise, it is characterized in that, comprising: first transparency carrier, several first electrodes, first insulation course, several second electrodes, first both alignment layers, twisted liquid crystal, second both alignment layers, several the 4th electrodes, second insulation course, several third electrodes and second transparency carrier;
Described first transparency carrier is positioned at bottom, and second transparency carrier is positioned at top layer, and described first transparency carrier and second transparency carrier are parallel to each other;
Described first electrode is banded, and the described first electrode each interval is arranged on described first transparency carrier; Described first insulation course is covered on described first electrode, and the upper surface of described first insulation course is a plane; Described second electrode is banded, the described second electrode each interval is arranged in the described first insulation course upper surface, and the orientation of described second electrode is parallel to the orientation of described first electrode, and the gap of any two described first electrodes is over against one second electrode; Described first both alignment layers is covered on described second electrode, and the upper surface of described first both alignment layers is a plane;
Described third electrode is banded, and described third electrode each interval is arranged in the lower surface of described second transparency carrier, and the orientation of described third electrode is perpendicular to the orientation of described first electrode; Described second insulation course is covered in described third electrode lower surface, and the lower surface of described second insulation course is a plane; Described the 4th electrode is banded, described the 4th electrode each interval is arranged in the described second insulation course lower surface, and the orientation of described the 4th electrode is parallel to the orientation of described third electrode, and the gap of any two described third electrodes is over against one the 4th electrode; Described second both alignment layers is covered in the lower surface of described the 4th electrode, and the lower surface of described second both alignment layers is a plane;
Described twisted liquid crystal is between described first both alignment layers and second both alignment layers; The alignment direction of the alignment direction of described first both alignment layers and second both alignment layers is vertical mutually.
2, the twisted nematic liquid crystal box is switched in pointwise as claimed in claim 1, it is characterized in that, described pointwise is switched the twisted nematic liquid crystal box and is adopted line scanning or column scan mode to drive, and near the retention time of described twisted liquid crystal second state is longer than or equals a scan period;
Wherein, the state that the molecule that described first state is described twisted liquid crystal is arranged when no electric field action, under described first both alignment layers and the second both alignment layers effect naturally, the molecular long axis direction that described second state is described twisted liquid crystal are fully along the state of arranging perpendicular to the described first transparency carrier direction.
3, the twisted nematic liquid crystal box is switched in pointwise as claimed in claim 2, it is characterized in that, in each scan period, by the twisted liquid crystal two end electrodes that is in second state is applied with the last scan period be applied to the voltage reversal on this part twisted liquid crystal two end electrodes voltage, make the described twisted liquid crystal that is in second state switch to first state.
4, the twisted nematic liquid crystal box is switched in pointwise as claimed in claim 1, it is characterized in that, also comprises: be used for described twisted liquid crystal is enclosed in sealing frame between described first both alignment layers and second both alignment layers.
5, the twisted nematic liquid crystal box is switched in pointwise as claimed in claim 1, it is characterized in that, also comprises: be arranged at the wadding between described first both alignment layers and second both alignment layers, be used to guarantee that the spacing of described first both alignment layers and second both alignment layers is a preset space length.
6, the twisted nematic liquid crystal box is switched in each described pointwise as claim 1 to 5, it is characterized in that described first, second, third, fourth electrode two ends width along its length all is narrower than the width of middle part.
7, a kind of 2D-3D 3 d display device, it is characterized in that, along optical propagation direction, described 2D-3D 3 d display device comprises successively: be used to provide the display panel of image light, each described pointwise of claim 1 to 6 to switch twisted nematic liquid crystal box, single refraction lens arra and birefringent lens array;
The image light that described display panel provides is orthogonal first linearly polarized light in the polarization direction and the direction of propagation;
The alignment direction of the both alignment layers of close described display panel one side in the twisted nematic liquid crystal box is switched in described pointwise and the polarization direction of described first linearly polarized light is parallel to each other; Described pointwise is switched the twisted nematic liquid crystal box and is used to make the direct transmission of described first linearly polarized light, or described first linearly polarized light is converted to the orthogonal second linearly polarized light outgoing in polarization direction of polarization direction and described first linearly polarized light;
Described single refraction lens arra all comprises planar section and the curvature portion relative with this plane with birefringent lens array, and the curvature portion profile complementation of described single refraction lens arra and birefringent lens array; The combination of described single refraction lens arra and birefringent lens array is used for first linearly polarized light of twisted nematic liquid crystal box outgoing and a kind of plano lens that shows as among second linearly polarized light are switched in described pointwise, and another kind shows as convex lens.
8,2D-3D 3 d display device as claimed in claim 7, it is characterized in that, described single refraction lens arra is the convex lens array, and that maximum refractive index equates in the ordinary refraction index of the refractive index of described single refraction lens arra and described birefringent lens array and the extraordinary ray refractive index.
9,2D-3D 3 d display device as claimed in claim 7, it is characterized in that, described single refraction lens arra is the convex lens array, and that minimum refractive index equates in the ordinary refraction index of the refractive index of described single refraction lens arra and described birefringent lens array and the extraordinary ray refractive index.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102467910A CN101477278A (en) | 2008-12-31 | 2008-12-31 | Twisted nematic liquid crystal box and apparatus containing the same |
| PCT/CN2009/074879 WO2010075713A1 (en) | 2008-12-31 | 2009-11-10 | Twisted nematic liquid crystal cell and apparatus including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102467910A CN101477278A (en) | 2008-12-31 | 2008-12-31 | Twisted nematic liquid crystal box and apparatus containing the same |
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| Publication Number | Publication Date |
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| CN101477278A true CN101477278A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008102467910A Pending CN101477278A (en) | 2008-12-31 | 2008-12-31 | Twisted nematic liquid crystal box and apparatus containing the same |
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| CN (1) | CN101477278A (en) |
| WO (1) | WO2010075713A1 (en) |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166326A (en) * | 1982-03-26 | 1983-10-01 | Hitachi Ltd | Liquid crystal display |
| JPH05224218A (en) * | 1992-02-17 | 1993-09-03 | Seiko Instr Inc | Liquid crystal device |
| CN201126495Y (en) * | 2007-12-03 | 2008-10-01 | 北京超多维科技有限公司 | 2D-3D transferable stereo display device |
-
2008
- 2008-12-31 CN CNA2008102467910A patent/CN101477278A/en active Pending
-
2009
- 2009-11-10 WO PCT/CN2009/074879 patent/WO2010075713A1/en active Application Filing
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