CN203759362U - 3D glasses and 3D display device - Google Patents
3D glasses and 3D display device Download PDFInfo
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- CN203759362U CN203759362U CN201420046769.2U CN201420046769U CN203759362U CN 203759362 U CN203759362 U CN 203759362U CN 201420046769 U CN201420046769 U CN 201420046769U CN 203759362 U CN203759362 U CN 203759362U
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- 239000011521 glass Substances 0.000 title claims abstract description 30
- 239000004973 liquid crystal related substance Substances 0.000 claims description 49
- 230000010287 polarization Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- -1 because existing Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000000162 simple eye Anatomy 0.000 description 1
Abstract
The utility model provides 3D glasses and a 3D display device, and belongs to the display technical field. With the 3D glasses and the 3D display device adopted, the problem of crosstalk of left and right eyes in existing 3D display can be solved. The 3D glasses of the utility model includes a left lens and a right lens, wherein one of the left lens and the right lens comprises a polarizing sheet layer which allows levogyration polarized light to pass through, and the other lens comprises a polarizing sheet layer which allows dextrorotation polarized light to pass through; and each lens further comprises a shutter layer used for controlling the passing of light. According to the 3D glasses and the 3D display device of the utility model, transmitted signals of the left and right eyes are filtered twice, and therefore, the crosstalk of the left and right eyes can be reduced.
Description
Technical field
The utility model belongs to display technique field, is specifically related to a kind of 3D glasses, 3D display device.
Background technology
Along with the development of TV and related display industry, the equipment with 3D function also increases gradually, as shown in Figure 1, the 3D know-why of existing real D company is: the light that backlight 1 produces changes linear deflection into after by liquid crystal display 2, this linearly polarized photon is through for example PCP plate of polarisation control panel 3() produce the change of light signal polarization direction, form two polarization states (for example level or vertical), light is again after quarter wave plate 4, become left-handed rotation and right-handed rotation, two kinds of light allow respectively the left and right eyeglass by polaroid glasses 5, thereby make right and left eyes observe image separately, realize 3D display effect.
But in this process due to following reason cause 3D show crosstalk larger:
1. polarisation control panel 3 mainly changes polarization direction by liquid crystal, because existing, liquid crystal material self response speed postpones, if back light system is not processed, left eye can be watched the picture of right eye within the regular hour, right eye also can be watched the picture of left eye within the regular hour, and generation is crosstalked.
What produce for above-mentioned reason crosstalks, and prior art employing reduces right and left eyes to the mode of backlight 1 subarea-scanning crosstalks, and particularly, backlight 1 is carried out to subregion, and independently controls lighting and closing of each subregion.
Liquid crystal display 2 shows left eye picture, and when light the particular zones of backlight 1, the backlight 1 of other subregion is closed, and meanwhile, the light signal of this subregion is converted into left-hand polarization light by polarisation control panel 3 and quarter wave plate 4, and this left-hand polarization light enters left eye.
In next moment, liquid crystal display 2 still shows left eye picture, and the continuous subregion of the next one of backlight 1 is lighted, the backlight 1 of other subregion is closed, meanwhile, the light signal of this subregion is converted into left-handed rotation by polarisation control panel 3 and quarter wave plate 4, and this left-handed rotation enters left eye; Now, in liquid crystal display 2, the part of a subregion starts to show the picture of next frame right eye, the respective partition of polarisation control panel 3 also becomes dextrorotation state (but this transformation may exist delay), but because the backlight of this subregion is closed, therefore user can't see the content of this part.
So repeat, until whole subarea-scannings of backlight light one time, a frame left eye picture shows completely, and the content that now liquid crystal display 2 shows has become right eye picture, then enter the demonstration completely of a frame right eye picture, step shows identical with a frame left eye picture completely.
2. due to the difference of wave plate self character and the restriction of coating technique, causing through the light signal of wave plate is also not exclusively circularly polarized light, can there is elliptically polarized light simultaneously, and elliptically polarized light sees through the other eyeglass of polarisation eyes by having certain component, thereby make simple eye signal cross-talk to other eyes, cause and crosstalk.
3. the liquid crystal work of polarisation control panel, also in metastable state, also has certain limitation to the change of light polarization direction, and the contrast of the transmitance of polarisation control panel and polaroid glasses zoarium is inadequate, causes and crosstalks.As shown in Figure 2, the transmitance contrast of polarisation control panel is D
polarisation control panel=Tmax/Tmin, wherein, Tmax is maximum transmission, and Tmin is minimum transmittance, and crosstalking of the larger right and left eyes of contrast is less, can increase contrast reduction right and left eyes and crosstalk.
Utility model content
The purpose of this utility model is the problem that during the 3D of solution prior art shows, right and left eyes is crosstalked, and provides a kind of and can reduce 3D glasses and the 3D display device that right and left eyes is crosstalked.
The technical scheme that solution the utility model technical matters adopts is a kind of 3D glasses, comprise left and right eyeglass, in described left and right eyeglass, an eyeglass comprises the layer of polarizer that allows left-hand polarization light transmission, and another comprises the layer of polarizer that allows dextropolarization light transmission; It is characterized in that, every eyeglass also comprises a shutter layer that whether can pass through for controlling light.
3D glasses of the present utility model can further filter 3D glasses by increasing shutter layer to the right and left eyes signal seeing through, reduced crosstalking of right and left eyes.
Preferably, described shutter layer comprises: two linear polarizer; Be clipped in the liquid crystal layer between linear polarizer; For controlling the control electrode of described aligned liquid crystal layer.
Another object of the present utility model also comprises provides a kind of 3D display device, comprise liquid crystal display, be located at liquid crystal display bright dipping side and for adjust polarization of light direction polarisation control panel, be located at the quarter wave plate of polarisation control panel bright dipping side, also comprise above-mentioned 3D glasses.
Preferably, the backlight of described liquid crystal display comprises the multiple luminous zones that can independently be controlled.
Preferably, described polarisation control panel comprises the liquid crystal layer for changing light polarization direction, and for controlling the control electrode of aligned liquid crystal layer.
Preferably, described control electrode comprises the multiple electrode districts that can independently control.
Preferably, the position of the electrode district of described control electrode comprises that with the backlight of described liquid crystal display the multiple luminous zones that can independently be controlled are corresponding one by one.
3D display device of the present utility model is by carrying out subregion to the LED of backlight module, and according to certain sequential Time share scanning, corresponding by certain sequential relationship with right and left eyes display deflection control panel, the 3D glasses of panel, thereby realize, right and left eyes signal is carried out to the separation of two aspects: spatial domain separates to utilize and left-handedly separates with right-handed rotation; Time domain separates the scanning backlight that coordinates panel, separates by the shutter layer of 3D glasses.3D display device of the present utility model is separated and has been reached the right and left eyes signal that effective district office shows by above-mentioned twice right and left eyes signal, reaches and reduces the object that right and left eyes that 3D shows is crosstalked.
Brief description of the drawings
Fig. 1 is the structural representation of this prior art 3D display device.
Fig. 2 is polarisation control panel transmitance schematic diagram in this prior art.
Fig. 3 is the structural representation of 3D glasses in the utility model embodiment 1.
Fig. 4 is the utility model embodiment 1 shutter layer transmitance schematic diagram.
Fig. 5 is the structural representation of 3D display device in the utility model embodiment 2.
Wherein:
1. backlight; 2. liquid crystal display; 3. deflection control panel; 4.1/4 wave plate; 5.3D glasses; 51. layer of polarizer; 52. shutter layers.
Embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 3, the present embodiment provides a kind of 3D glasses, and these 3D glasses comprise left and right eyeglass, and in described left and right eyeglass, an eyeglass comprises the layer of polarizer 51 that allows left-hand polarization light transmission, and another comprises the layer of polarizer 51 that allows dextropolarization light transmission; Every eyeglass also comprises a shutter layer 52 that whether can pass through for controlling light.Preferably, described shutter layer 52 comprises two linear polarizer; Be clipped in the liquid crystal layer between linear polarizer; For controlling the control electrode of described aligned liquid crystal layer.Should be understood that, the structure of described shutter layer 52 can be also other structure of the prior art, as long as can be by controlling the orientation of liquid crystal layer and then optionally seeing through.
The transmitance schematic diagram of described shutter layer 52 as shown in Figure 4, transmitance contrast D as seen from Figure 4
shutter layer=Tmax/Tmin, wherein, Tmax is maximum transmission, Tmin is minimum transmittance, the transmitance contrast D of shutter layer 52
shutter layerthan the transmitance contrast D of polarisation control panel
polarisation control panellarger.Crosstalk=K/ (the D of 3D display system
polarisation control panel× D
shutter layer), wherein K is coefficient, has comprised the impact of other factors in system, visible, increases the transmitance contrast D of shutter layer 52
shutter layercontribute to reduce crosstalking of 3D display system.
The liquid crystal layer of described shutter layer 52 loads certain voltage and deflects and do not allow light to see through (blackening) under the effect of control electrode.Otherwise, under the effect of control electrode, on-load voltage, do not allow light to see through.As shown in Figure 3, while showing right eye picture, control electrode powers up left eyeglass lens liquid crystal layer, left eyeglass lens is black, does not allow light to see through, now, control electrode does not power up right eye eyeglass, and right eye can be seen right eye picture, and right and left eyes signal can filter crosstalking of further minimizing right and left eyes.
The 3D glasses of the present embodiment can further filter 3D glasses and 3D display device by increasing shutter layer 52 to the right and left eyes signal seeing through, reduced crosstalking of right and left eyes.
Embodiment 2
As shown in Figure 5, the present embodiment provides a kind of 3D display device, described 3D display device comprises liquid crystal display 2, be located at liquid crystal display 2 bright dipping sides and for adjust polarization of light direction polarisation control panel 3, be located at the quarter wave plate 4 of polarisation control panel 3 bright dipping sides.
Preferably, the backlight 1 of described liquid crystal display 2 comprises the multiple luminous zones that can independently be controlled (region of lattice-shaped in figure).
Preferably, described polarisation control panel 3 comprises the liquid crystal layer for changing light polarization direction, and for controlling the control electrode of aligned liquid crystal layer.Light liquid crystal display 2 being sent by the orientation of control liquid crystal layer changes the polarized light of horizontal or vertical direction into.
As shown in Figure 5, preferred, the control electrode in polarisation control panel 3 comprises the multiple electrode districts that can independently control (region of grid in figure).Can conveniently carry out independent control to the zones of different of polarisation control panel 3 like this, change specific region direction of light.
Further preferred, the position of each electrode district of described control electrode is corresponding with a luminous zone of described backlight.As shown in Figure 1,8 electrode districts of 8 of backlight luminous zones and control electrode are corresponding one by one.Can deal with to the signal of while liquid crystal display the same area by corresponding clock signal like this, reduce crosstalking of right and left eyes.
Introducing above-mentioned 3D display device is below how to realize 3D to show.
Shutter 3D shows it is mainly to realize 3D effect by the fast refresh rate (conventionally will reach 120Hz) that improves picture, belongs to active 3D technology, is again time-sharing procedure shading technology or liquid crystal time sharing.
As shown in Figure 5, the backlight 1 of liquid crystal display 2 is carried out to subregion, for example, by the light-emitting diode display part of backlight 1, by the luminous zone that is divided into successively from top to bottom 8 strips, each luminous zone is independently controlled luminous zone by controller and is lighted and close.
Liquid crystal display 2 is exported a frame right eye picture, when light the particular zones of backlight 1, for example, the first luminous zone is lighted by controller, and the LED device of other luminous zone is closed, meanwhile, the electrode district corresponding with the first luminous zone of backlight 1 of the control electrode of polarisation control panel 3 is by powering up the polarized light that the linearly polarized light of liquid crystal display 2 outgoing is converted to horizontal or vertical direction; Quarter wave plate 4 converts the polarized light of described horizontal or vertical direction to left-hand polarization light or right-handed polarized light, and as shown in Figure 5, this moment of light signal is right-handed polarized light, and this right-handed polarized light enters the layer of polarizer 51 of 3D glasses 5.As shown in Figure 5, right eye eyeglass is dextropolarization sheet, right eye picture enters right eye eyeglass, now, by controlling the liquid crystal layer of 3D glasses 5, the liquid crystal layer of left eyeglass lens is powered up and makes left eyeglass lens in light tight state (black), and in a frame right eye picture, the part in the region of corresponding the first luminous zone enters right eye.
In next moment, liquid crystal display 2 still shows right eye picture, and the second luminous zone of backlight 1 is lit, and the backlight 1 of other subregion is closed, and meanwhile, is converted into right-handed rotation by the light signal of polarisation control panel 3 and quarter wave plate 4, and this right-handed rotation enters right eye; Now, in liquid crystal display 2, the part of a subregion starts to show the picture of next frame right eye, the respective partition of polarisation control panel 3 also becomes left-handed state (but this transformation may exist delay), but because the backlight of this subregion is closed, therefore user can't see the content of this part.Until whole subarea-scannings of backlight 1 are lighted one time, a frame right eye picture shows completely.
The content that now liquid crystal display 2 shows has become left eye picture, then enters the demonstration completely of a frame right eye picture, and step shows identical with a frame left eye picture completely.
Should be understood that, above-mentioned backlight 1, liquid crystal display 2, deflection control panel 3,3D glasses 5, four is that benchmark carries out sequential control in synchronizing signal, and reaching the technology that right and left eyes picture enters respectively beholder left and right eyes is prior art category, and this is no longer going to repeat them.
Visible, the 3D display device that the present embodiment provides is by carrying out subregion to the LED of backlight module, and according to certain sequential Time share scanning, corresponding by certain sequential relationship with right and left eyes display deflection control panel 3, the 3D glasses 5 of liquid crystal display 2, thereby realize, right and left eyes signal is carried out to the separation of two aspects: spatial domain separates to utilize and left-handedly separates with right-handed rotation; It is the scanning backlight of fluid,matching crystal display 2 that time domain separates, and separates by the shutter layer of 3D glasses.3D display device of the present utility model is separated and has been reached the right and left eyes signal that effective district office shows by above-mentioned twice right and left eyes signal, reaches and reduces the object that right and left eyes that 3D shows is crosstalked.
Be understandable that, above embodiment is only used to principle of the present utility model is described and the illustrative embodiments that adopts, but the utility model is not limited to this.For those skilled in the art, in the situation that not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (7)
1. 3D glasses, comprise left and right eyeglass, and in described left and right eyeglass, an eyeglass comprises the layer of polarizer that allows left-hand polarization light transmission, and another comprises the layer of polarizer that allows dextropolarization light transmission; It is characterized in that, every eyeglass also comprises a shutter layer that whether can pass through for controlling light.
2. 3D glasses as claimed in claim 1, is characterized in that, described shutter layer comprises: two linear polarizer; Be clipped in the liquid crystal layer between linear polarizer; For controlling the control electrode of described aligned liquid crystal layer.
3. a 3D display device, comprise liquid crystal display, be located at liquid crystal display bright dipping side and for adjust polarization of light direction polarisation control panel, be located at the quarter wave plate of polarisation control panel bright dipping side, it is characterized in that, also comprise 3D glasses as claimed in claim 1 or 2.
4. 3D display device as claimed in claim 3, is characterized in that, the backlight of described liquid crystal display comprises the multiple luminous zones that can independently be controlled.
5. 3D display device as claimed in claim 3, is characterized in that, described polarisation control panel comprises the liquid crystal layer for changing light polarization direction, and for controlling the control electrode of aligned liquid crystal layer.
6. 3D display device as claimed in claim 5, is characterized in that, described control electrode comprises the multiple electrode districts that can independently control.
7. 3D display device as claimed in claim 6, is characterized in that, the position of the electrode district of described control electrode comprises that with the backlight of described liquid crystal display the multiple luminous zones that can independently be controlled are corresponding one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046769.2U CN203759362U (en) | 2014-01-24 | 2014-01-24 | 3D glasses and 3D display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046769.2U CN203759362U (en) | 2014-01-24 | 2014-01-24 | 3D glasses and 3D display device |
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| Publication Number | Publication Date |
|---|---|
| CN203759362U true CN203759362U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420046769.2U Expired - Lifetime CN203759362U (en) | 2014-01-24 | 2014-01-24 | 3D glasses and 3D display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991783A (en) * | 2018-01-30 | 2018-05-04 | 京东方科技集团股份有限公司 | 3d display device |
-
2014
- 2014-01-24 CN CN201420046769.2U patent/CN203759362U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991783A (en) * | 2018-01-30 | 2018-05-04 | 京东方科技集团股份有限公司 | 3d display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
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| CX01 | Expiry of patent term |