CN102253562A - Stereo display device and liquid crystal lens thereof - Google Patents
Stereo display device and liquid crystal lens thereof Download PDFInfo
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- CN102253562A CN102253562A CN2011101960334A CN201110196033A CN102253562A CN 102253562 A CN102253562 A CN 102253562A CN 2011101960334 A CN2011101960334 A CN 2011101960334A CN 201110196033 A CN201110196033 A CN 201110196033A CN 102253562 A CN102253562 A CN 102253562A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 107
- 239000000758 substrate Substances 0.000 claims abstract description 80
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Abstract
The invention discloses a stereo display device and a liquid crystal lens thereof. The liquid crystal lens comprises a first substrate, a second substrate, a liquid crystal layer, a first electrode layer and a second electrode layer, wherein the first substrate and the second substrate are arranged at a certain interval; the liquid crystal layer is arranged between the first substrate and the second substrate; the first electrode layer is arranged between the first substrate and the liquid crystal layer; and the second electrode layer is arranged between the second substrate and the liquid crystal layer; the first electrode layer and the second electrode layer are used for producing electric fields, so that the liquid crystal layer can produce a lens effect; and the first electrode layer comprises a plurality of strip electrodes, the strip electrodes are arranged at a certain interval, and each strip electrode is provided with a structure with gradually-changed transmittance along a direction perpendicular to the extending direction of the strip electrode. Through the mode above, by using the stereo display device and liquid crystal lens disclosed by the invention, the imaging quality can be improved, and a good image display effect can be achieved.
Description
Technical field
The present invention relates to optical technical field, particularly relate to a kind of 3 d display device and liquid crystal lens thereof.
Background technology
Fast development along with stereo display technique, stereoscopic display device has also had more and more a large amount of demands, realizing that 3 D stereo shows in the middle of numerous technology, bore hole stereo display makes it enjoy favor in 3 D stereo demonstration field owing to need not the advantage that the observer wears special eyeglasses.
At present, the main mode that realizes the bore hole stereo display technique is by grating is set before display panel, pixel cell with display panel is divided into odd column pixel and even column pixel in the horizontal direction, thereby for beholder's right and left eyes provides two width of cloth different images respectively, utilize the parallax effect of beholder's left-eye image and eye image to form the depth of field, and then produce the stereo display effect.Existing grating comprises black and white parallax obstacle grating and column physics lens etc., because the pitch of common grating is unadjustable, can only limit spectators watches in certain specific viewing distance scope, dirigibility and viewing distance are limited, and this has limited the application of raster pattern stereo display technique in life.For this reason, industry has been developed can be by the liquid crystal obstacle grating and the liquid crystal lens of voltage-regulation grating pitch, and still this liquid crystal grating still has a mole line defective, has influenced the stereo display effect.
See also Fig. 1, Fig. 1 is the use synoptic diagram of existing raster pattern three-dimensional display.The image light that flat-panel screens 4 is produced is through entering beholder 6 eyes behind the grating 5.See also Fig. 2, Fig. 2 is the mole line synoptic diagram of existing raster pattern three-dimensional display.Interfere owing to exist periodically between the pel array of grating and flat-panel screens, the image that the pel array 7 of flat-panel screens is produced is through forming the mole line in the shown image 9 in grating 8 backs, obviously, this mole line phenomenon has very big influence to the effect of 3 D stereo picture, can destroy the sight of image, have a strong impact on visual effect, cause beholder's incompatibility sense.
The transmittance of the drive electrode material of liquid crystal grating has certain difference with the zone that the electrode place is not set at present, causes producing mole line effect between drive electrode edge and the panel pixel black matrix on every side, has influenced image display effect.
As shown in Figure 3 and Figure 4, shown a kind of synoptic diagram of liquid crystal lens in the prior art, this liquid crystal lens 100 comprises first substrate 110, second substrate 120, liquid crystal layer 130, first electrode layer 140, the second electrode lay 150, first alignment film 160 and second alignment film 170.
Wherein, these first substrate 110 and these second substrate, 120 relative spacing settings, this liquid crystal layer 130 is between this first substrate 110 and this second substrate 120, this first electrode layer 140 is arranged between this first substrate 110 and this liquid crystal layer 130, covered by this first alignment film 160, this the second electrode lay 150 is arranged between this second substrate 120 and this liquid crystal layer 130, is covered by this second alignment film 170.
As shown in Figure 4, this first electrode layer 140 is a plurality of rectangular bar-shaped electrodes, it has homogeneous thickness, because the transmittance of these a plurality of strip electrodes has than big-difference with the transmittance that the strip electrode location is not set, cause easily producing the mole line around these a plurality of bar shaped electroplaxs and the panel pixel, as shown in phantom in Figure 4.
Summary of the invention
The invention provides a kind of 3 d display device and liquid crystal lens, can reduce mole line and form, realize the preferable image display effect.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of liquid crystal lens is provided, comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between this first substrate and this second substrate;
First electrode layer is arranged between this first substrate and this liquid crystal layer;
The second electrode lay is arranged between this second substrate and this liquid crystal layer;
This first electrode layer and this second electrode lay are used to produce electric field, so that this liquid crystal layer produces lens effect;
Wherein, this first electrode layer comprises the strip electrode that a plurality of intervals are provided with, and along the bearing of trend perpendicular to this strip electrode, this strip electrode has the transmittance grading structure.
According to one preferred embodiment of the present invention, this transmittance grading structure is trapezoidal structure for this strip electrode is made as the cross section.
According to one preferred embodiment of the present invention, this is trapezoidal to be isosceles trapezoid, and this trapezoidal long limit is positioned at this first substrate-side, and this trapezoidal minor face is provided with towards this liquid crystal layer.
According to one preferred embodiment of the present invention, the junction of this trapezoidal minor face and side (waist) is set to the arc transition structure.
According to one preferred embodiment of the present invention, this transmittance grading structure is leg-of-mutton structure for this strip electrode is made as the cross section.
According to one preferred embodiment of the present invention, this triangle is an isosceles triangle, and this leg-of-mutton base is positioned at this first substrate-side, and this leg-of-mutton drift angle is provided with towards this liquid crystal layer, and described drift angle is set to the arc transition structure.
According to one preferred embodiment of the present invention, this transmittance grading structure is little stepped leg-of-mutton structure for this strip electrode is made as the cross section.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of liquid crystal lens is provided, comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between this first substrate and this second substrate;
First electrode layer is arranged between this first substrate and this liquid crystal layer;
The second electrode lay is arranged between this second substrate and this liquid crystal layer;
This first electrode layer and this second electrode lay are used to produce electric field, so that this liquid crystal layer produces lens effect;
Wherein, this first electrode layer comprises the strip electrode that a plurality of intervals are provided with, and along the bearing of trend perpendicular to this strip electrode, the thickness of this strip electrode xsect is reduced to both sides gradually by the centre.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of liquid crystal lens is provided, comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between this first substrate and this second substrate;
First electrode layer is positioned at a side of adjacent this liquid crystal layer of this first substrate;
The second electrode lay is positioned at a side of adjacent this liquid crystal layer of this second substrate;
This first electrode layer and this second electrode lay are used to produce electric field, so that this liquid crystal layer produces lens effect;
First alignment film covers this first electrode layer;
Second alignment film covers this second electrode lay;
Wherein, this first electrode layer comprises a plurality of strip electrodes, and the material that this strip electrode adopts transmittance and this first alignment film to reach unanimity is made.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of 3 d display device is provided, comprises display panel and be located at liquid crystal lens on this display panel, this liquid crystal lens adopts above-mentioned liquid crystal lens.
The invention has the beneficial effects as follows: be different from the situation of prior art, the electrode of 3 d display device provided by the invention and liquid crystal lens thereof is provided with the transmittance grading structure, effectively reduces mole line and forms, and has improved the viewing effect of image greatly.
Description of drawings
Fig. 1 is the use synoptic diagram of existing raster pattern three-dimensional display;
Fig. 2 is the mole line synoptic diagram of existing raster pattern three-dimensional display;
Fig. 3 is the schematic cross-section of a kind of liquid crystal lens in the prior art;
The perspective view of the liquid crystal lens that Fig. 4 is shown in Figure 3;
Fig. 5 is the schematic cross-section of liquid crystal lens according to one preferred embodiment of the present invention;
Fig. 6 is the schematic cross-section of the liquid crystal lens of another preferred embodiment according to the present invention;
Fig. 7 is the schematic cross-section of the liquid crystal lens of another preferred embodiment according to the present invention;
Fig. 8 is the schematic cross-section of the liquid crystal lens of another preferred embodiment according to the present invention;
Fig. 9 has shown the synoptic diagram of light transmitance when passing liquid crystal lens of the prior art;
Figure 10 has shown the synoptic diagram of light transmitance when passing liquid crystal lens of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
The invention provides a kind of 3 d display device, comprise display panel and liquid crystal lens.Display panel is used to show left-eye image and the eye image with parallax; Liquid crystal lens is arranged on the display panel, and will have the left-eye image of parallax and eye image lead the respectively left eye and the right eye of beholder's correspondence.
See also Fig. 5, be convenient description the present invention, Fig. 5 only shows the structural representation of liquid crystal lens.As shown in Figure 5, this liquid crystal lens 200 comprises first substrate 210, second substrate 220, liquid crystal layer 230, first electrode layer 240, the second electrode lay 250, first alignment film 260 and second alignment film 270.
Wherein, these first substrate 210 and these second substrate, 220 relative spacing settings, this liquid crystal layer 230 is between this first substrate 210 and this second substrate 220, this first electrode layer 240 is arranged between this first substrate 210 and this liquid crystal layer 230, covered by this first alignment film 260, this the second electrode lay 250 is arranged between this second substrate 220 and this liquid crystal layer 230, is covered by this second alignment film 270; This first electrode layer 240 and this second electrode lay 250 are used to produce electric field, so that this liquid crystal layer 230 produces lens effect.
In embodiments of the present invention, this first electrode layer 240 comprises the strip electrode that a plurality of spaced and parallel are provided with, along bearing of trend perpendicular to strip electrode, these a plurality of strip electrodes are provided with the transmittance grading structure, promptly at the bearing of trend perpendicular to this strip electrode, the thickness of this strip electrode xsect is reduced to both sides gradually by the centre.
Particularly, in the present embodiment, this transmittance grading structure is trapezoidal structure for strip electrode is made as the cross section, this trapezoidal isosceles trapezoid that is generally, its long limit is positioned at first substrate, 210 1 sides, its minor face is provided with towards liquid crystal layer 230, in a preferred embodiment, the junction of minor face that this is trapezoidal and side (waist) is set to the arc transition structure, the transmittance of these these a plurality of strip electrodes of arc transition structure changes journey gradual change trend, avoids being easy to form the mole line owing to most advanced and sophisticated transmittance changes sudden change.
See also Fig. 6, in another embodiment of the present invention, this liquid crystal lens 300 comprises first substrate 310, second substrate 320, liquid crystal layer 330, first electrode layer 340, the second electrode lay 350, first alignment film 360 and second alignment film 30.
Equally, these first substrate 310 and these second substrate, 320 relative spacing settings, this liquid crystal layer 330 is between this first substrate 310 and this second substrate 320, this first electrode layer 340 is arranged between this first substrate 310 and this liquid crystal layer 330, covered by this first alignment film 360, this the second electrode lay 350 is arranged between this second substrate 320 and this liquid crystal layer 330, is covered by this second alignment film 370; This first electrode layer and this second electrode lay are used to produce electric field, so that this liquid crystal layer produces lens effect.
In embodiments of the present invention, this first electrode layer 340 is the strip electrode that a plurality of spaced and parallel are provided with, and along the bearing of trend perpendicular to strip electrode, these a plurality of strip electrodes are provided with the transmittance grading structure.
Particularly, in the present embodiment, this transmittance grading structure is leg-of-mutton structure for strip electrode is made as the cross section, and this triangle is generally isosceles triangle, this leg-of-mutton base is positioned at first substrate, 310 1 sides, and this leg-of-mutton drift angle is provided with towards liquid crystal layer 330.In a preferred embodiment, leg-of-mutton drift angle is set to arc transition structure 500, this arc transition structure 500 makes the transmittance of these a plurality of strip electrodes change journey gradual change trend, avoids being easy to form the mole line owing to most advanced and sophisticated transmittance changes sudden change, as shown in Figure 8.
See also Fig. 7, in another embodiment of the present invention, this liquid crystal lens 400 comprises first substrate 410, second substrate 420, liquid crystal layer 430, first electrode layer 440, the second electrode lay 450, first alignment film 460 and second alignment film 470.
Equally, these first substrate 410 and these second substrate, 420 relative spacing settings, this liquid crystal layer 430 is between this first substrate 410 and this second substrate 420, this first electrode layer 440 is arranged between this first substrate 410 and this liquid crystal layer 430, covered by this first alignment film 460, this the second electrode lay 450 is arranged between this second substrate 420 and this liquid crystal layer 430, and this second alignment film 470 covers; This first electrode layer and this second electrode lay are used to produce electric field, so that this liquid crystal layer produces lens effect.
In embodiments of the present invention, this first electrode layer 440 is the strip electrode that a plurality of spaced and parallel are provided with, and along the bearing of trend perpendicular to strip electrode, these a plurality of strip electrodes are provided with the transmittance grading structure.
Particularly, in the present embodiment, this transmittance grading structure is little stepped leg-of-mutton structure for strip electrode is made as the cross section, and the variation in thickness of each little ladder is less relatively, can make the transmittance of this electrode change journey gradual change trend.
In another embodiment, first electrode layer comprises the strip electrode that a plurality of spaced and parallel are provided with, the second electrode lay comprises the strip electrode that a plurality of spaced and parallel are provided with, the bearing of trend of the first electrode layer strip electrode is vertical with the bearing of trend of the second electrode lay strip electrode, and the strip electrode of first electrode layer and the strip electrode of the second electrode lay are equipped with the transmittance grading structure described in the present invention, this structure can form the liquid crystal lens of another direction, helps display panel and revolves and carry out 3D when turning 90 degrees and show.
Next, illustrate that in conjunction with Fig. 9 and Figure 10 the present invention reduces the principle of mole line.
As shown in Figure 9, the liquid crystal lens of prior art is in application, and when light passed through this liquid crystal lens, the transmittance at first electrode layer, 140 places was T
1, and the transmittance that first electrode layer, 140 location are not set is T
2, this shows that at first electrode layer 140 and substrate 110 places that first electrode layer 140 is not set, transmittance is from T
1Directly change to T
2, and its transmittance presents very significantly abrupt change in 140 edges of first electrode layer, shows as tangible boundary line in display frame, interferes mutually between this boundary line and the panel pixel array, causes forming easily a mole line.
And in Figure 10, light is during by liquid crystal lens provided by the invention, because first electrode layer 340 is provided with the transmittance grading structure described in the foregoing description, and the T of its transmittance in the middle of first electrode layer 340
1Transition gradually to the edge is T
1～T
2Carry out the transition to the T at first substrate, 310 places that do not cover first electrode layer 340 again
2This transmittance presents in the edge of first electrode layer 340 and gradually changes, the light and shade striped of having avoided the unexpected variation of transmittance and having formed, thereby the pixel cell or the black matrix of the arranged on minimizing and the display panel overlap, make liquid crystal lens be difficult for generating the mole line, thereby improved image quality, realized the preferable image display effect.
Find that through experiment the rate of change of the transmittance of the edge of first electrode layer can influence the boundary line of first electrode layer in the liquid crystal lens, and then the formation of mole line is impacted.Because the display effect of mole line is to repeat the macro-effect that constituted by the periodicity of a plurality of moles of lines, and adopt the liquid crystal lens of above-mentioned configuration, when the boundary line of first electrode layer is not obvious, the width of a plurality of moles of lines is also just inconsistent, this periodicity of just having destroyed a plurality of moles of lines repeats, and therefore the display effect of mole line is also just eliminated greatly.
Certainly, the method of eliminating the mole line is not limited to this, can also be by research and development new material electrode, the mode that the transmittance of the transmittance of electrode and alignment film is reached unanimity, and change thickness of electrode having under the effect same prerequisite, perhaps many-sides such as the material of electrode, structure, form are comprehensively adjusted modes such as design.The present invention does not limit the implementation of transmittance grading structure in the electrode, and those skilled in the art should know, so long as the transmittance between electrode zone and the non-electrode zone is the consistent optical effect that just can reach the smeared out boundary line of trend that gradually changes.
The above only is embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. liquid crystal lens comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between described first substrate and described second substrate;
First electrode layer is arranged between described first substrate and the described liquid crystal layer;
The second electrode lay is arranged between described second substrate and the described liquid crystal layer;
Described first electrode layer and described the second electrode lay are used to produce electric field, so that described liquid crystal layer produces lens effect;
It is characterized in that described first electrode layer comprises the strip electrode that a plurality of intervals are provided with, along the bearing of trend perpendicular to described strip electrode, described strip electrode has the transmittance grading structure.
2. liquid crystal lens according to claim 1 is characterized in that, described transmittance grading structure is trapezoidal structure for described strip electrode is made as the cross section.
3. liquid crystal lens according to claim 2 is characterized in that, described trapezoidal be isosceles trapezoid, described trapezoidal long limit is positioned at described first substrate-side, described trapezoidal minor face is towards described liquid crystal layer setting.
4. liquid crystal lens according to claim 3 is characterized in that, the described trapezoidal minor face and the junction of side are set to the arc transition structure.
5. liquid crystal lens according to claim 1 is characterized in that, described transmittance grading structure is leg-of-mutton structure for described strip electrode is made as the cross section.
6. liquid crystal lens according to claim 5, it is characterized in that described triangle is an isosceles triangle, described leg-of-mutton base is positioned at described first substrate-side, described leg-of-mutton drift angle is towards described liquid crystal layer setting, and described drift angle is set to the arc transition structure.
7. liquid crystal lens according to claim 1 is characterized in that, described transmittance grading structure is little stepped leg-of-mutton structure for described strip electrode is made as the cross section.
8. liquid crystal lens comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between described first substrate and described second substrate;
First electrode layer is arranged between described first substrate and the described liquid crystal layer;
The second electrode lay is arranged between described second substrate and the described liquid crystal layer;
Described first electrode layer and described the second electrode lay are used to produce electric field, so that described liquid crystal layer produces lens effect;
It is characterized in that described first electrode layer comprises the strip electrode that a plurality of intervals are provided with, along the bearing of trend perpendicular to described strip electrode, the thickness of described strip electrode xsect is reduced to both sides gradually by the centre.
9. liquid crystal lens comprises:
First substrate and second substrate that the interval is provided with;
Liquid crystal layer between described first substrate and described second substrate;
First electrode layer is positioned at a side of the adjacent described liquid crystal layer of described first substrate;
The second electrode lay is positioned at a side of the adjacent described liquid crystal layer of described second substrate;
Described first electrode layer and described the second electrode lay are used to produce electric field, so that described liquid crystal layer produces lens effect;
First alignment film covers described first electrode layer;
Second alignment film covers described the second electrode lay;
It is characterized in that described first electrode layer comprises a plurality of strip electrodes, the material that described strip electrode adopts transmittance and described first alignment film to reach unanimity is made.
10. 3 d display device comprises display panel and is located at liquid crystal lens on the described display panel that described liquid crystal lens adopts according to any described liquid crystal lens in the claim 1 to 7.
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| CN201110196033.4A CN102253562B (en) | 2011-07-13 | 2011-07-13 | Stereo display device and liquid crystal lens thereof |
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|---|---|---|---|
| CN201110196033.4A CN102253562B (en) | 2011-07-13 | 2011-07-13 | Stereo display device and liquid crystal lens thereof |
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Cited By (12)
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| CN102944961A (en) * | 2012-11-15 | 2013-02-27 | 深圳市华星光电技术有限公司 | Naked-eye three-dimensional display and liquid crystal lens thereof |
| CN103869573A (en) * | 2014-03-06 | 2014-06-18 | 京东方科技集团股份有限公司 | Base plate for liquid crystal lens, manufacturing method thereof, liquid crystal lens and stereo display device |
| CN104597684A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens and liquid crystal display device based on naked eye three-dimensional display |
| CN104597685A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens and liquid crystal display device |
| CN104597683A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens capable of displaying in multiple directions and liquid crystal display device |
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| CN102944961B (en) * | 2012-11-15 | 2016-03-30 | 深圳市华星光电技术有限公司 | Bore hole 3D display device and liquid crystal lens thereof |
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| CN104597685B (en) * | 2014-12-30 | 2018-07-06 | 深圳市魔眼科技有限公司 | Liquid crystal lens and liquid crystal display device |
| CN104597684A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens and liquid crystal display device based on naked eye three-dimensional display |
| CN104597685A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens and liquid crystal display device |
| CN104597683A (en) * | 2014-12-30 | 2015-05-06 | 深圳市亿思达科技集团有限公司 | Liquid crystal lens capable of displaying in multiple directions and liquid crystal display device |
| CN105988224A (en) * | 2015-02-09 | 2016-10-05 | 北京三星通信技术研究有限公司 | 3D display device and Moire fringe reducing method and device thereof |
| CN105988224B (en) * | 2015-02-09 | 2019-03-19 | 北京三星通信技术研究有限公司 | Three-dimensional display apparatus and its Moire fringe method for reducing and device |
| US10310282B2 (en) | 2015-03-09 | 2019-06-04 | Boe Technology Group Co., Ltd. | Display device and method for controlling a grating thereof |
| CN109994051A (en) * | 2017-12-29 | 2019-07-09 | 乐金显示有限公司 | With the 3 d display device for stopping panel |
| CN109799631A (en) * | 2019-03-15 | 2019-05-24 | 京东方科技集团股份有限公司 | A kind of liquid crystal lens and preparation method thereof, display device |
| CN110471233A (en) * | 2019-08-26 | 2019-11-19 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| CN114963128A (en) * | 2021-02-18 | 2022-08-30 | 株式会社日本显示器 | Lighting device |
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|---|---|
| CN102253562B (en) | 2014-11-26 |
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