CN101718936B - Displaying device and liquid crystal lens thereof - Google Patents
Displaying device and liquid crystal lens thereof Download PDFInfo
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- CN101718936B CN101718936B CN200910225271.6A CN200910225271A CN101718936B CN 101718936 B CN101718936 B CN 101718936B CN 200910225271 A CN200910225271 A CN 200910225271A CN 101718936 B CN101718936 B CN 101718936B
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Abstract
The invention provides a displaying device capable of switching between a two-dimensional display mode and a three-dimensional display mode and a liquid crystal lens thereof. The displaying device comprises a display panel, wherein the liquid crystal lens is arranged on the display panel; the liquid crystal lens comprises a first substrate, a second substrate, a first electrode, a second electrode, an insulating layer, a liquid crystal layer and a third electrode; the first electrode is arranged on one side of the first substrate, which faces to the second substrate, and the first electrode is provided with a notch; the second electrode is arranged between the first substrate and the second substrate; and the second electrode roughly corresponds to the notch of the first electrode.
Description
Technical field
The present invention relates to display device and the liquid crystal lens thereof of a kind of changeable two dimensional mode and three-dimensional display mode, espespecially a kind of electrode pattern design that utilizes reaches the changeable two dimensional mode of low capacitive load and the display device of three-dimensional display mode and liquid crystal lens thereof.
Background technology
The main principle of stereo display technique makes the left eye of beholder and right eye receive different images respectively, and the image that left eye and right eye receive can be overlapping and make beholder perceive stereovision and the degree of depth of display frame via brains analysis, and then generation stereoscopic sensation.
Current 3 d display device mainly can distinguish time series formula (time-sequential) and space multiplex type two kinds.Time series formula 3 d display device can with the scan mode sequentially Alternation Display left eye picture supplying left eye to watch and the right eye picture watched for right eye.In time watching picture, beholder must wear shutter glasses (shutter glass), and shutter glasses sequentially can allow according to the picture shown at present that the left eye of beholder is only watched left eye picture and cannot watch right eye picture, and allow that the right eye of beholder is only watched right eye picture and cannot watch left eye picture, reach the effect of stereo display thus.Space multiplex type 3 d display device mainly comprises disparity barrier (parallax barrier) type 3 d display device.Parallax barrier-type 3 d display device utilizes to be arranged at the disparity barrier in display panel front, makes the left eye of beholder and right eye be subject to covering of disparity barrier because of the difference of viewing angle, and only can watch left eye picture and right eye picture respectively.
But known 3 d display device is in use or effect still has many shortcomings.First, time series formula 3 d display device needs prestowage shutter glasses, therefore the inconvenience in use is caused, there is part-time display frame contain left eye information and right eye information simultaneously and must be given up in the transfer process of this external left eye picture and right eye picture, otherwise be no matter that left eye or right eye receive this picture the consciousness of beholder all can be caused to obscure.Therefore the brightness causing time series formula 3 d display device reduces with picture frame ratio (frame rate), and have impact on display quality.In addition, the disparity barrier of parallax barrier-type space multiplex type 3 d display device can cover some light, therefore has the shortcoming that brightness is on the low side.
Therefore, recent industry have developed liquid crystal lens type 3 d display device, to improve the shortcoming of known 3 d display device.Please refer to Fig. 1.Fig. 1 depicts the schematic diagram of known liquid crystal lens type 3 d display device.As shown in Figure 1, known liquid crystal lens type 3 d display device 10 comprises display panel 20, and liquid crystal lens 30 is arranged on display panel 20.Liquid crystal lens 30 comprises first substrate 32, second substrate 34, multiple first electrode 36, multiple second electrode 38, insulation course 40, liquid crystal layer 42 and the 3rd electrode 44.First substrate 32 and second substrate 34 are oppositely arranged.First electrode 36 is arranged at the side of first substrate 32 in the face of second substrate 34.Second electrode 38 is arranged between first substrate 32 and second substrate 34, and each second electrode 38 partly overlaps with the first corresponding electrode 36.Insulation course 40 is arranged between the first electrode 36 and the second electrode 38.Liquid crystal layer 42 is arranged between the second electrode 38 and second substrate 34.3rd electrode 44 is arranged between liquid crystal layer 42 and second substrate 34.In time carrying out 3-D display, the first electrode 36 has the first voltage, the second electrode 38 has the second voltage, and the 3rd electrode 44 has common electric voltage, and liquid crystal layer 42 can be subject to the driving of electric field and produce lens effect thus.But, because the first electrode 36 and the second electrode 38 are for partly overlapping, capacitive load (capacitive loading) can be produced between the two, and this capacitive load can make liquid crystal lens 30 need larger voltage just can effectively to drive, therefore cause the increase of power consumption and driving chip cost.In addition, capacitive load also can produce harmful effect to lens effect.
Summary of the invention
An object of the present invention is the display device and the liquid crystal lens thereof that provide a kind of changeable two dimensional mode and three-dimensional display mode, to solve the difficult problem that known technology faces.
The preferred embodiments of the present invention provide a kind of liquid crystal lens.Above-mentioned liquid crystal lens comprises first substrate, second substrate, the first electrode, the second electrode, insulation course, liquid crystal layer and the 3rd electrode.First substrate and second substrate are oppositely arranged, and have spacing between first substrate and second substrate.First electrode is arranged at the side of first substrate in the face of second substrate, and the first electrode has breach.Second electrode is arranged between first substrate and second substrate, and wherein the second electrode corresponds to the breach of the first electrode substantially.Insulation course is arranged between the first electrode and the second electrode.Liquid crystal layer is arranged between the second electrode and second substrate.3rd electrode is arranged between liquid crystal layer and second substrate.
Another preferred embodiment of the present invention provides the display device of a kind of changeable two dimensional mode and three-dimensional display mode, and it comprises display panel, and liquid crystal lens is arranged on display panel.Above-mentioned liquid crystal lens comprises first substrate, second substrate, the first electrode, the second electrode, insulation course, liquid crystal layer and the 3rd electrode.First substrate and second substrate are oppositely arranged, and have spacing between first substrate and second substrate.First electrode is arranged at the side of first substrate in the face of second substrate, and the first electrode has breach.Second electrode is arranged between first substrate and second substrate, and wherein the second electrode corresponds to the breach of the first electrode substantially.Insulation course is arranged between the first electrode and the second electrode.Liquid crystal layer is arranged between the second electrode and second substrate.3rd electrode is arranged between liquid crystal layer and second substrate.
The liquid crystal lens of display device of the present invention comprises first electrode with breach design, and the position of the second electrode corresponds to the breach of the first electrode substantially, therefore the first electrode produces capacitive load with the second electrode is unlikely because the overlapping area on vertical projection direction is excessive.Therefore, liquid crystal lens of the present invention can utilize lower driving voltage to be driven, and can reduce power consumption and driving chip cost.In addition, designed by the breach of electrode, liquid crystal lens of the present invention has more preferably lens effect.
Accompanying drawing explanation
Fig. 1 depicts the schematic diagram of known liquid crystal lens type 3 d display device.
Fig. 2 depicts the schematic diagram of the changeable two dimensional mode of the preferred embodiment of the present invention and the display device of three-dimensional display mode.
Fig. 3 depicts the schematic diagram of the changeable two dimensional mode of another preferred embodiment of the present invention and the display device of three-dimensional display mode.
Fig. 4 depicts the schematic diagram of the changeable two dimensional mode of the another preferred embodiment of the present invention and the display device of three-dimensional display mode.
Fig. 5 shows the refractive index of liquid crystal lens of the present invention and the graph of a relation of position.
Description of reference numerals
10: liquid crystal lens type 3 d display device 20: display panel
30: liquid crystal lens 32: first substrate
34: second substrate 36: the first electrode
38: the second electrodes 40: insulation course
42: liquid crystal layer 44: the three electrode
50: the display device of changeable two dimensional mode and three-dimensional display mode
60: display panel 62: sub-pixel area
70: liquid crystal lens 72: first substrate
74: second substrate 76: the first electrode
76H: breach 78: the second electrode
80: insulation course 82: liquid crystal layer
84: the three electrode w1: the first width
W2: the second width H: vertical interval
Embodiment
For making the those skilled in the art haveing the knack of the technical field of the invention further can understand the present invention, hereafter spy enumerates the preferred embodiments of the present invention, and coordinates accompanying drawing, describe in detail constitution content of the present invention and the effect for reaching.
Please refer to Fig. 2.Fig. 2 depicts the schematic diagram of the changeable two dimensional mode of the preferred embodiment of the present invention and the display device of three-dimensional display mode.As shown in Figure 2, the changeable two dimensional mode of the present embodiment and the display device 50 of three-dimensional display mode comprise display panel 60, and liquid crystal lens 70 is arranged on display panel 60.Display panel 60 can be display panels, organic EL display panel, plasma display, electrophoretic display panel or Field Emission Display panel etc., or other various types display panel.Display panel 60 comprises multiple sub-pixel area 62.Liquid crystal lens 70 comprises first substrate 72, second substrate 74, multiple first electrode 76, multiple second electrode 78, insulation course 80, liquid crystal layer 82 and the 3rd electrode 84.First substrate 72 and second substrate 74 are oppositely arranged, and second substrate 74 is arranged at the side near display panel 60.Between first substrate 72 and second substrate 74, there is spacing.First electrode 76 is arranged at the side of first substrate 72 in the face of second substrate 74, and each first electrode 76 has breach 76H.Second electrode 78 is arranged between first substrate 72 and second substrate 74, and each second electrode 78 corresponds to the breach 76H of each first electrode 76 substantially, and each first electrode 76 is not overlapping on vertical projection direction substantially with each second electrode 78 thus.Insulation course 80 is arranged between the first electrode 76 and the second electrode 78, and the thickness of insulation course 80 is the vertical interval H of the first electrode 76 and the second electrode 78 substantially.In the present embodiment, the thickness of insulation course 80 substantially about between 200 dusts to 8 micron, and being better between 3 microns to 5 microns, but not as limit.Liquid crystal layer 82 is arranged between the second electrode 78 and second substrate 74, wherein for playing lens effect, the thickness of liquid crystal layer 82 substantially about between 10 microns and 200 microns, and being better between 15 microns and 45 microns, but not as limit.In addition, if display panel 60 selects display panels, then it also has liquid crystal layer (not shown), and the thickness of the liquid crystal layer of display panels is about between 3 microns and 5 microns, therefore the thickness of the liquid crystal layer 82 of liquid crystal lens 70 is greater than the thickness of the liquid crystal layer of display panels.3rd electrode 84 is arranged between liquid crystal layer 82 and second substrate 74.
In the present embodiment, the first electrode 76 is arranged at the surface of first substrate 72 in the face of second substrate 74, and the 3rd electrode 84 is arranged at the surface of second substrate 74 in the face of first substrate 72, but not as limit.Such as between the first electrode 76 and first substrate 72, or separately can be provided with other rete between the 3rd electrode 84 and second substrate 74.In addition, the breach 76H of the first electrode 76 has the first width w1, and the second electrode 78 has the second width w2.In the present embodiment, the first width w1 of the breach 76H of the first electrode 76 is equal substantially with the second width w2 of the second electrode 78, but not as limit.The ratio of the first width w1 and the second width w2 can between 1% and 500%, and being better between 100% and 200%, but not as limit.In addition, the width of the first electrode 76 can be such as 90 microns, and the second width w2 of the first width w1 of breach 76H and the second electrode 78 can be such as between 10 microns to 14 microns, and is better with 12 microns, but not as limit.In the present embodiment, each second electrode 78 corresponds to the breach 76H of each first electrode 76 substantially, and each first electrode 76 is not overlapping on vertical projection direction substantially with each second electrode 78, but consider the first electrode 76 and the second electrode 78 issuable contraposition deviation in process, therefore the first width w1 of the breach 76H of the first electrode 76 and the visual situation of the second width w2 of the second electrode 78 adjust, such as the second width w2 can be slightly less than the first width w1, overlaps on vertical projection direction to avoid the first electrode 76 and the second electrode 78.Moreover, the distance of the second electrode 78 and the first electrode 76 distance in the horizontal direction or vertical direction is larger, better for the effect reducing capacitive load, specifically, the second width w2 that first width w1 of the first electrode 76 is greater than the second electrode 78 is more, or first the vertical interval H of electrode 76 and the second electrode 78 larger, then better for the effect reducing capacitive load.
The display device 50 of changeable two dimensional mode of the present invention and three-dimensional display mode provides two dimensional mode and three-dimensional display mode respectively by the driving of electric field.For example, in the 2 d display mode, the first electrode 76, second electrode 78 and the 3rd electrode 84 can not be given by service voltage, now liquid crystal lens 30 can not play a role, and the display frame that therefore display panel 60 provides directly can be passed liquid crystal lens 70 and be supplied to the display frame of beholder's two dimension under impregnable situation; Under three-dimensional display mode, appropriate voltage can be supplied to the first electrode 76, second electrode 78 and the 3rd electrode 84, such as supply the first electrode 76 low-voltage, supply the second electrode 78 high voltage, and supply the 3rd electrode 84 common electric voltage, now liquid crystal lens 30 is because playing lens effect by electric field driven, therefore the left eye display frame that provides of display panel 60 and right eye display frame can produce refraction by lens effect, the left eye of difference directive beholder and right eye, make beholder experience three-dimensional display thus.
Please refer to Fig. 3.Fig. 3 depicts the schematic diagram of the changeable two dimensional mode of another preferred embodiment of the present invention and the display device of three-dimensional display mode, wherein for the purpose of simplifying the description and be convenient to the deviation of more each embodiment, in the present embodiment, similar elements is used and marks with previous embodiment similar elements, same section is not repeated separately.As shown in Figure 3, in the present embodiment, each second electrode 78 corresponds to the breach 76H of each first electrode 76 substantially, but the second width w2 of each second electrode 78 is slightly larger than the first width w1 of the breach 76H of each first electrode 76, or first electrode 76 and the second electrode 78 in process because of contraposition deviation, and make the first electrode 76 and the second electrode 78 overlapping in vertical projection direction upper part substantially.Though overlapping on vertical projection direction of the first electrode 76 and the second electrode 78 can produce capacitive load, this capacitive load is still far below the known capacitive load not arranging the lap between the first electrode jaggy and the second electrode and produce.
Please refer to Fig. 4.Fig. 4 depicts the schematic diagram of the changeable two dimensional mode of the another preferred embodiment of the present invention and the display device of three-dimensional display mode, wherein for the purpose of simplifying the description and be convenient to the deviation of more each embodiment, in the present embodiment, similar elements is used and marks with previous embodiment similar elements, same section is not repeated separately.As shown in Figure 4, in the present embodiment, the first substrate 72 of liquid crystal lens 50 is arranged at the side near display panel 60, second substrate 74 is then arranged at the side away from display panel 60, in other words, with the difference of aforementioned two embodiments, the liquid crystal lens 50 of the present embodiment is that liquid crystal lens 50 has done the upset of 180 degree.In addition, about the thickness of the first electrode 76, second electrode 78 and the 3rd electrode 84, width and spacing, and the design such as the thickness of liquid crystal layer 82, then can use the various practices that aforementioned two embodiments disclose.
Please refer to Fig. 5.Fig. 5 shows the refractive index of liquid crystal lens of the present invention and the graph of a relation of position, and wherein curve 1 represents the refractive index of liquid crystal lens of the present invention and the relation of position, and curve 2 represents the refractive index of perfect lens and the relation of position.As shown in Figure 5, the lens effect of liquid crystal lens of the present invention close to the lens effect of perfect lens, therefore can effectively play 3-D display effect.
In sum, in liquid crystal lens of the present invention, because the first electrode has breach design, and the position of the second electrode corresponds to the breach of the first electrode substantially, therefore the first electrode and the second electrode are unlikely produces capacitive load because of overlapping on vertical projection direction.Therefore, liquid crystal lens of the present invention can utilize lower driving voltage to be driven, and can reduce power consumption and driving chip cost.In addition, liquid crystal lens of the present invention is verified has splendid lens effect, and can make the effect being provided 3-D display by the light exact refractive of liquid crystal lens.
The foregoing is only the preferred embodiments of the present invention, all equivalent variations of doing according to the claims in the present invention and modification, all should belong to covering scope of the present invention.
Claims (20)
1. a liquid crystal lens, comprising:
First substrate;
Second substrate, is oppositely arranged with this first substrate, and has spacing between this first substrate and this second substrate;
Multiple first electrode, be arranged at the side of this first substrate in the face of this second substrate, and described multiple each of first electrode has breach;
Multiple second electrode, be arranged between this first substrate and this second substrate, the each of wherein said multiple second electrode corresponds to this each breach of described multiple first electrode substantially, and wherein the distance of two adjacent the first electrodes is less than the distance of two adjacent the second electrodes;
Insulation course, is arranged between this first electrode and this second electrode;
Liquid crystal layer, is arranged between this second electrode and this second substrate; And
3rd electrode, is arranged between this liquid crystal layer and this second substrate,
Wherein, the interval between the second adjacent electrode is filled by this insulation course.
2. liquid crystal lens as claimed in claim 1, wherein this breach of this first electrode has the first width, and this second electrode has the second width.
3. liquid crystal lens as claimed in claim 2, wherein the ratio of this first width of this breach of this first electrode and this second width of this second electrode is between 1% and 500%.
4. liquid crystal lens as claimed in claim 3, wherein this ratio of this first width of this breach of this first electrode and this second width of this second electrode is substantially 100%.
5. liquid crystal lens as claimed in claim 1, wherein this first electrode is not overlapping on vertical projection direction with this second electrode.
6. liquid crystal lens as claimed in claim 1, wherein this first electrode is overlapping in vertical projection direction upper part with this second electrode.
7. liquid crystal lens as claimed in claim 1, wherein this first electrode is arranged at the surface of this first substrate in the face of this second substrate.
8. liquid crystal lens as claimed in claim 1, wherein the 3rd electrode is arranged at the surface of this second substrate in the face of this first substrate.
9. liquid crystal lens as claimed in claim 1, wherein the thickness of this insulation course is between 200 dusts and 8 microns.
10. liquid crystal lens as claimed in claim 1, wherein the thickness of this liquid crystal layer is between 10 microns and 200 microns.
The display device of 11. 1 kinds of changeable two dimensional mode and three-dimensional display mode, comprising:
Display panel; And
Liquid crystal lens, be arranged on this display panel, this liquid crystal lens comprises:
First substrate;
Second substrate, is oppositely arranged with this first substrate, and has spacing between this first substrate and this second substrate;
Multiple first electrode, be arranged at the side of this first substrate in the face of this second substrate, and respectively this first electrode has breach;
Multiple second electrode, is arranged between this first substrate and this second substrate, and wherein respectively this second electrode corresponds to this breach of each this first electrode substantially, and wherein the distance of two adjacent the first electrodes is less than the distance of two adjacent the second electrodes;
Insulation course, is arranged between these first electrodes and these the second electrodes;
Liquid crystal layer, is arranged between these the second electrode and this second substrates; And
3rd electrode, is arranged between this liquid crystal layer and this second substrate,
Wherein, the interval between the second adjacent electrode is filled by this insulation course.
The display device of 12. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein respectively this breach of this first electrode has the first width, and respectively this second electrode has the second width.
The display device of 13. changeable two dimensional mode as claimed in claim 12 and three-dimensional display mode, wherein respectively this first width of this breach of this first electrode and the ratio of this second width of this corresponding the second electrode between 1% and 500%.
The display device of 14. changeable two dimensional mode as claimed in claim 13 and three-dimensional display mode, wherein respectively this first width of this breach of this first electrode is substantially 100% with this ratio of this second width of this corresponding the second electrode.
The display device of 15. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein respectively this first electrode is not overlapping on vertical projection direction with corresponding respectively this second electrode.
The display device of 16. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, respectively this first electrode is overlapping in vertical projection direction upper part with corresponding respectively this second electrode.
The display device of 17. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein these first electrodes are arranged at the surface of this first substrate in the face of this second substrate.
The display device of 18. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein the 3rd electrode is arranged at the surface of this second substrate in the face of this first substrate.
The display device of 19. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein the thickness of this insulation course is between 200 dusts and 8 microns.
The display device of 20. changeable two dimensional mode as claimed in claim 11 and three-dimensional display mode, wherein the thickness of this liquid crystal layer is between 10 microns and 200 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910225271.6A CN101718936B (en) | 2009-11-18 | 2009-11-18 | Displaying device and liquid crystal lens thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910225271.6A CN101718936B (en) | 2009-11-18 | 2009-11-18 | Displaying device and liquid crystal lens thereof |
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| CN101718936A CN101718936A (en) | 2010-06-02 |
| CN101718936B true CN101718936B (en) | 2015-06-24 |
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| CN200910225271.6A Active CN101718936B (en) | 2009-11-18 | 2009-11-18 | Displaying device and liquid crystal lens thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI474048B (en) | 2011-12-21 | 2015-02-21 | Au Optronics Corp | Display device |
| CN102591089A (en) * | 2011-12-21 | 2012-07-18 | 友达光电股份有限公司 | Display device |
| CN102929068B (en) * | 2012-11-14 | 2017-02-22 | 中航华东光电有限公司 | Liquid crystal lens and stereoscopic display device |
| CN103091930B (en) * | 2013-01-30 | 2016-05-11 | 深圳市华星光电技术有限公司 | A kind of liquid crystal lens and 3 d display device |
| TWI470277B (en) * | 2014-02-05 | 2015-01-21 | Au Optronics Corp | Fresnel liquid crystal lens and switchable 2d/3d display panel |
| CN104252083B (en) * | 2014-09-24 | 2018-04-10 | 深圳市华星光电技术有限公司 | A kind of liquid crystal lens and liquid crystal display device |
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| CN101419352A (en) * | 2007-10-22 | 2009-04-29 | 乐金显示有限公司 | Electrically-driven liquid crystal lens and stereoscopic display device using the same |
| CN101458412A (en) * | 2007-12-14 | 2009-06-17 | 乐金显示有限公司 | Electrically-driven liquid crystal lens and stereoscopic display device using the same |
| CN101533169A (en) * | 2009-04-21 | 2009-09-16 | 华映光电股份有限公司 | Parallax barrier and stereo display device produced by the parallax barrier |
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2009
- 2009-11-18 CN CN200910225271.6A patent/CN101718936B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419352A (en) * | 2007-10-22 | 2009-04-29 | 乐金显示有限公司 | Electrically-driven liquid crystal lens and stereoscopic display device using the same |
| CN101458412A (en) * | 2007-12-14 | 2009-06-17 | 乐金显示有限公司 | Electrically-driven liquid crystal lens and stereoscopic display device using the same |
| CN101533169A (en) * | 2009-04-21 | 2009-09-16 | 华映光电股份有限公司 | Parallax barrier and stereo display device produced by the parallax barrier |
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