CN101718936A - Displaying device and liquid crystal lens thereof - Google Patents
Displaying device and liquid crystal lens thereof Download PDFInfo
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- CN101718936A CN101718936A CN200910225271A CN200910225271A CN101718936A CN 101718936 A CN101718936 A CN 101718936A CN 200910225271 A CN200910225271 A CN 200910225271A CN 200910225271 A CN200910225271 A CN 200910225271A CN 101718936 A CN101718936 A CN 101718936A
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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 the display device and the liquid crystal lens thereof of a kind of changeable two dimensional mode and 3-D display pattern, refer to a kind of changeable two dimensional mode that electrode pattern design reaches low capacitive load and the display device and liquid crystal lens thereof of 3-D display pattern of utilizing especially.
Background technology
The main principle of stereo display technique is to make beholder's left eye receive different images respectively with right eye, and the image that left eye and right eye receive can be via brain analysis and overlapping and make the beholder perceive the stereovision and the degree of depth of display frame, and then produces stereoscopic sensation.
3 d display device mainly can be distinguished time series formula (time-sequential) and two kinds of space multiplex types at present.Time series formula 3 d display device can be with scan mode Alternation Display confession in regular turn left eye left eye picture of watching and the right eye picture of watching for right eye.When watching picture, the beholder must wear shutter glasses (shutter glass), and shutter glasses can allow that in regular turn beholder's left eye only watches the left eye picture and can't watch the right eye picture according to present picture displayed, and the right eye of allowing the beholder only watches the right eye picture and can't watch the left eye picture, reaches the effect of stereo display thus.Space multiplex type 3 d display device mainly comprises disparity barrier (parallax barrier) type 3 d display device.The parallax barrier-type 3 d display device is to utilize the disparity barrier be arranged at display panel the place ahead, makes beholder's left eye and right eye be subjected to covering of disparity barrier because of the difference of viewing angle, and only can watch left eye picture and right eye picture respectively.
Yet known 3 d display device in the use or still have many shortcomings on the effect.At first, time series formula 3 d display device needs the prestowage shutter glasses, therefore cause the inconvenience in the use, there is part-time display frame to comprise left eye information and right eye information simultaneously in the transfer process of this external left eye picture and right eye picture and must be given up, otherwise no matter be that left eye or right eye receive this picture and all can cause beholder's consciousness to obscure.Therefore caused the brightness of time series formula 3 d display device to reduce than (frame rate), and influenced display quality with picture frame.In addition, the disparity barrier of parallax barrier-type space multiplex type 3 d display device can cover part light, therefore has brightness shortcoming on the low side.
Therefore, industry has been developed liquid crystal lens type 3 d display device recently, to improve the shortcoming of known 3 d display device.Please refer to Fig. 1.Fig. 1 has illustrated the synoptic 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 the display panel 20.Liquid crystal lens 30 comprises first substrate 32, second substrate 34, a plurality of first electrode 36, a plurality of second electrode 38, insulation course 40, liquid crystal layer 42 and third 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 is overlapped with corresponding first electrode 36.Insulation course 40 is arranged between first electrode 36 and second electrode 38.Liquid crystal layer 42 is arranged between second electrode 38 and second substrate 34.Third electrode 44 is arranged between the liquid crystal layer 42 and second substrate 34.When carrying out 3-D display, first electrode 36 has first voltage, second electrode 38 has second voltage, and third electrode 44 has common electric voltage, and liquid crystal layer 42 can be subjected to the driving of electric field and produce lens effect thus.Yet, because first electrode 36 and second electrode 38 are for overlapping, can produce capacitive load (capacitive loading) between the two, and this capacitive load can make liquid crystal lens 30 need bigger voltage just can effectively to drive, therefore cause the increase of power consumption and chip for driving cost.In addition, capacitive load also can produce harmful effect to lens effect.
Summary of the invention
One of purpose of the present invention is to provide the display device and the liquid crystal lens thereof of a kind of changeable two dimensional mode and 3-D display pattern, to solve the difficult problem that known technology was faced.
The preferred embodiments of the present invention provide a kind of liquid crystal lens.Above-mentioned liquid crystal lens comprises first substrate, second substrate, first electrode, second electrode, insulation course, liquid crystal layer and third 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 real estate to second substrate, and first electrode has breach.Second electrode is arranged between first substrate and second substrate, and wherein second electrode is substantially corresponding to the breach of first electrode.Insulation course is arranged between first electrode and second electrode.Liquid crystal layer is arranged between second electrode and second substrate.Third electrode is arranged between the 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 3-D display pattern, and it comprises display panel, and liquid crystal lens is arranged on the display panel.Above-mentioned liquid crystal lens comprises first substrate, second substrate, first electrode, second electrode, insulation course, liquid crystal layer and third 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 real estate to second substrate, and first electrode has breach.Second electrode is arranged between first substrate and second substrate, and wherein second electrode is substantially corresponding to the breach of first electrode.Insulation course is arranged between first electrode and second electrode.Liquid crystal layer is arranged between second electrode and second substrate.Third electrode is arranged between the 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 second electrode is substantially corresponding to the breach of first electrode, and the overlapping area so first electrode and second electrode are unlikely on the vertical projection direction is excessive and produce capacitive load.Therefore, liquid crystal lens of the present invention can utilize lower driving voltage to be driven, and can reduce power consumption and chip for driving cost.In addition, by the breach design of electrode, liquid crystal lens of the present invention has more preferable lens effect.
Description of drawings
Fig. 1 has illustrated the synoptic diagram of known liquid crystal lens type 3 d display device.
Fig. 2 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of the preferred embodiment of the present invention and 3-D display pattern.
Fig. 3 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of another preferred embodiment of the present invention and 3-D display pattern.
Fig. 4 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of the another preferred embodiment of the present invention and 3-D display pattern.
Fig. 5 has shown 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: 32: the first substrates of liquid crystal lens
36: the first electrodes of 34: the second substrates
42: liquid crystal layer 44: third electrode
50: the display device of changeable two dimensional mode and 3-D display pattern
60: display panel 62: sub-pixel area
70: 72: the first substrates of liquid crystal lens
76: the first electrodes of 74: the second substrates
76H: 78: the second electrodes of breach
80: look edge layer 82: liquid crystal layer
84: third electrode w1: first width
W2: the second width H: vertical interval
Embodiment
For making the those skilled in the art that have the knack of the technical field of the invention further understand the present invention, hereinafter the spy enumerates the preferred embodiments of the present invention, and conjunction with figs., describe in detail constitution content of the present invention and the effect desiring to reach.
Please refer to Fig. 2.Fig. 2 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of the preferred embodiment of the present invention and 3-D display pattern.As shown in Figure 2, the changeable two dimensional mode of present embodiment and the display device 50 of 3-D display pattern comprise display panel 60, and liquid crystal lens 70 is arranged on the 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 a plurality of sub-pixel area 62.Liquid crystal lens 70 comprises first substrate 72, second substrate 74, a plurality of first electrode 76, a plurality of second electrode 78, insulation course 80, liquid crystal layer 82 and third 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.Has spacing between first substrate 72 and second substrate 74.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 respectively second electrode 78 is substantially corresponding to the breach 76H of each first electrode 76, and each first electrode 76 is not overlapping on the vertical projection direction substantially with each second electrode 78 thus.Insulation course 80 is arranged between first electrode 76 and second electrode 78, and the thickness of insulation course 80 is the vertical interval H of first electrode 76 and second electrode 78 substantially.In the present embodiment, the thickness of insulation course 80 is substantially approximately between 200 dusts to 8 micron, and with between 3 microns to 5 microns be preferable, but not as limit.Liquid crystal layer 82 is arranged between second electrode 78 and second substrate 74, wherein is the performance lens effect, and the thickness of liquid crystal layer 82 is substantially approximately between 10 microns and 200 microns, and being preferable between 15 microns and 45 microns, but not as limit.In addition, display panel 60 is if select display panels for use, then it also has liquid crystal layer (figure do not show), and the thickness of the liquid crystal layer of display panels is approximately between 3 microns and 5 microns, so 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.Third electrode 84 is arranged between the liquid crystal layer 82 and second substrate 74.
In the present embodiment, first electrode 76 is arranged at the surface of first substrate 72 in the face of second substrate 74, and third electrode 84 is arranged at the surface of second substrate 74 in the face of first substrate 72, but not as limit.Can be provided with other rete in addition for example between first electrode 76 and first substrate 72, or between the third electrode 84 and second substrate 74.In addition, the breach 76H of first electrode 76 has the first width w1, and second electrode 78 has the second width w2.In the present embodiment, the first width w1 of the breach 76H of first electrode 76 equates substantially with the second width w2 of second electrode 78, but not as limit.The ratio of the first width w1 and the second width w2 can be between 1% and 500%, and being preferable between 100% and 200%, but not as limit.In addition, the width of first electrode 76 can be for example 90 microns, and the second width w2 of the first width w1 of breach 76H and second electrode 78 for example can be between 10 microns to 14 microns, and is preferable with 12 microns, but not as limit.In the present embodiment, each second electrode 78 is substantially corresponding to the breach 76H of each first electrode 76, and each first electrode 76 is not overlapping on the vertical projection direction substantially with each second electrode 78, but consider first electrode 76 and second electrode 78 issuable contraposition deviation in technology, therefore the first width w1 of the breach 76H of first electrode 76 and the visual situation of the second width w2 of second electrode 78 adjust, for example the second width w2 can be slightly less than the first width w1, overlaps on the vertical projection direction to avoid first electrode 76 and second electrode 78.Moreover, second electrode 78 and first electrode 76 distance or the distance of vertical direction in the horizontal direction is bigger, preferable for the effect that reduces capacitive load, specifically, the first width w1 of first electrode 76 is many more greater than the second width w2 of second electrode 78, or the vertical interval H of first electrode 76 and second electrode 78 is big more, and is then preferable for the effect that reduces capacitive load.
The display device 50 of changeable two dimensional mode of the present invention and 3-D display pattern can provide two dimensional mode and 3-D display pattern by the driving of electric field respectively.For example, under two dimensional mode, service voltage is not given first electrode 76, second electrode 78 and third electrode 84, this moment, liquid crystal lens 30 can not play a role, so the display frame that display panel 60 provided can directly be passed liquid crystal lens 70 and be offered the display frame of beholder's two dimension under impregnable situation; Under the 3-D display pattern, appropriate voltage be can supply with and first electrode 76, second electrode 78 and third electrode 84 given, for example supply with first electrode, 76 low-voltages, supply with second electrode, 78 high voltages, and supply third electrode 84 common electric voltages, this moment, liquid crystal lens 30 can be brought into play lens effect because of being subjected to electric field driven, therefore display panel 60 provided left eye display frame and right eye display frame meeting are subjected to lens effect and produce refraction, directive beholder's left eye and right eye make the beholder experience the 3-D display picture thus respectively.
Please refer to Fig. 3.Fig. 3 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of another preferred embodiment of the present invention and 3-D display pattern, wherein for the purpose of simplifying the description and be convenient to the different place of each embodiment of comparison, in the present embodiment, use and previous embodiment similar elements mark for similar elements, same section is not given unnecessary details separately.As shown in Figure 3, in the present embodiment, each second electrode 78 is substantially corresponding to the breach 76H of each first electrode 76, 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 second electrode 78 in technology because of the contraposition deviation, and make win electrode 76 and second electrode 78 overlapping on vertical projection direction top substantially.Though overlapping on the vertical projection direction of first electrode 76 and second electrode 78 can produce capacitive load, this capacitive load is still far below the known capacitive load that lap produced that is not provided with between first electrode jaggy and second electrode.
Please refer to Fig. 4.Fig. 4 has illustrated the synoptic diagram of the display device of the changeable two dimensional mode of the another preferred embodiment of the present invention and 3-D display pattern, wherein for the purpose of simplifying the description and be convenient to the different place of each embodiment of comparison, in the present embodiment, use and previous embodiment similar elements mark for similar elements, same section is not given unnecessary details separately.As shown in Figure 4, in the present embodiment, first substrate 72 of liquid crystal lens 50 is arranged at the side near display panel 60, second substrate 74 then is arranged at the side away from display panel 60, in other words, the difference of the liquid crystal lens 50 of present embodiment and aforementioned two embodiment is that liquid crystal lens 50 done the upsets of 180 degree.In addition, about thickness, width and the spacing of first electrode 76, second electrode 78 and third electrode 84, and the designs such as thickness of liquid crystal layer 82, the various practices that then can use aforementioned two embodiment to be disclosed.
Please refer to Fig. 5.Fig. 5 has shown the refractive index of liquid crystal lens of the present invention and the graph of a relation of position, and wherein curve 1 has been represented the refractive index of liquid crystal lens of the present invention and the relation of position, and curve 2 is represented 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 is near the lens effect of perfect lens, so can effectively bring into play the 3-D display effect.
In sum, in liquid crystal lens of the present invention, because first electrode has breach design, and the position of second electrode is substantially corresponding to the breach of first electrode, so first electrode and second electrode are unlikely because of overlapping on the vertical projection direction and the generation capacitive load.Therefore, liquid crystal lens of the present invention can utilize lower driving voltage to be driven, and can reduce power consumption and chip for driving cost.In addition, liquid crystal lens of the present invention is verified to have splendid lens effect, and can make the light by liquid crystal lens accurately reflect the effect that 3-D display is provided.
The above only is the preferred embodiments of the present invention, and all equivalent variations and modifications of doing according to claim of the present invention all should belong to covering scope of the present invention.
Claims (20)
1. 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;
First electrode be arranged at the side of this first real estate to this second substrate, and this first electrode has breach;
Second electrode is arranged between this first substrate and this second substrate, and wherein this second electrode is substantially corresponding to this breach of this first electrode;
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
Third electrode is arranged between this liquid crystal layer and this second substrate.
2. liquid crystal lens as claimed in claim 1, wherein this breach of this first electrode has first width, and this second electrode has second width.
3. liquid crystal lens as claimed in claim 2, wherein the ratio of this second width of this first width of this breach of this first electrode and this second electrode is substantially between 1% and 500%.
4. liquid crystal lens as claimed in claim 3, wherein this ratio of this second width of this first width of this breach of this first electrode and this second electrode is substantially 100%.
5. liquid crystal lens as claimed in claim 1, wherein this first electrode and this second electrode are not overlapping on the vertical projection direction substantially.
6. liquid crystal lens as claimed in claim 1, wherein this first electrode and this second electrode are overlapping on vertical projection direction top substantially.
7. liquid crystal lens as claimed in claim 1, wherein this first electrode is arranged at the surface of this first real estate to this second substrate.
8. liquid crystal lens as claimed in claim 1, wherein this third electrode is arranged at the surface of this second real estate to this first substrate.
9. liquid crystal lens as claimed in claim 1, wherein the thickness of this insulation course is substantially between between 200 dusts and 8 microns.
10. liquid crystal lens as claimed in claim 1, wherein the thickness of this liquid crystal layer is substantially between 10 microns and 200 microns.
11. the display device of changeable two dimensional mode and 3-D display pattern comprises:
Display panel; And
Liquid crystal lens is arranged on this display panel, and 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;
A plurality of first electrodes are arranged at the side of this first real estate to this second substrate, and respectively this first electrode has breach;
A plurality of second electrodes are arranged between this first substrate and this second substrate, wherein respectively this second electrode substantially corresponding to this breach of this first electrode respectively;
Insulation course is arranged between these first electrodes and these second electrodes;
Liquid crystal layer is arranged between these second electrodes and this second substrate; And
Third electrode is arranged between this liquid crystal layer and this second substrate.
12. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein respectively this breach of this first electrode has first width, and respectively this second electrode has second width.
13. the display device of changeable two dimensional mode as claimed in claim 12 and 3-D display pattern, wherein respectively the ratio of this second width of this first width of this breach of this first electrode and corresponding this second electrode substantially between 1% and 500%.
14. the display device of changeable two dimensional mode as claimed in claim 13 and 3-D display pattern, wherein respectively this ratio of this second width of this first width of this breach of this first electrode and corresponding this second electrode is substantially 100%.
15. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein respectively this first electrode and corresponding respectively this second electrode are not overlapping on the vertical projection direction substantially.
16. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, respectively this first electrode and corresponding respectively this second electrode are overlapping on vertical projection direction top substantially.
17. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein these first electrodes are arranged at the surface of this first real estate to this second substrate.
18. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein this third electrode is arranged at the surface of this second real estate to this first substrate.
19. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein the thickness of this insulation course is substantially between between 200 dusts and 8 microns.
20. the display device of changeable two dimensional mode as claimed in claim 11 and 3-D display pattern, wherein the thickness of this liquid crystal layer is substantially between 10 microns and 200 microns.
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| 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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| 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 true CN101718936A (en) | 2010-06-02 |
| CN101718936B 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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| CN102591089A (en) * | 2011-12-21 | 2012-07-18 | 友达光电股份有限公司 | Display device |
| CN102799039A (en) * | 2011-12-21 | 2012-11-28 | 友达光电股份有限公司 | Display device |
| CN102929068A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Liquid crystal lens and stereoscopic display device |
| CN103091930A (en) * | 2013-01-30 | 2013-05-08 | 深圳市华星光电技术有限公司 | Liquid crystal lens and stereo display device |
| CN103901680A (en) * | 2014-02-05 | 2014-07-02 | 友达光电股份有限公司 | Fresnel liquid crystal lens and switchable plane/stereo display panel |
| CN104252083A (en) * | 2014-09-24 | 2014-12-31 | 深圳市华星光电技术有限公司 | Liquid crystal lens and liquid crystal display device |
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| KR101222990B1 (en) * | 2007-10-22 | 2013-01-18 | 엘지디스플레이 주식회사 | Liquid Crystal Lens Electrically driven and Stereoscopy Display Device |
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| CN101533169B (en) * | 2009-04-21 | 2011-03-09 | 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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| CN102799039A (en) * | 2011-12-21 | 2012-11-28 | 友达光电股份有限公司 | Display device |
| CN102591089A (en) * | 2011-12-21 | 2012-07-18 | 友达光电股份有限公司 | Display device |
| US9025092B2 (en) | 2011-12-21 | 2015-05-05 | Au Optronics Corporation | Liquid crystal display comprising liquid crystal lens driven at a first time period and a second time period |
| CN102929068A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Liquid crystal lens and stereoscopic 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 |
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| CN103091930A (en) * | 2013-01-30 | 2013-05-08 | 深圳市华星光电技术有限公司 | Liquid crystal lens and stereo display device |
| CN103901680A (en) * | 2014-02-05 | 2014-07-02 | 友达光电股份有限公司 | Fresnel liquid crystal lens and switchable plane/stereo display panel |
| CN103901680B (en) * | 2014-02-05 | 2016-08-17 | 友达光电股份有限公司 | Fresnel liquid crystal lens and switchable plane/stereo display panel |
| CN104252083A (en) * | 2014-09-24 | 2014-12-31 | 深圳市华星光电技术有限公司 | Liquid crystal lens and liquid crystal display device |
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