CN101303422A - Lens unit and lens module using the same as well as flat panel display - Google Patents
Lens unit and lens module using the same as well as flat panel display Download PDFInfo
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- CN101303422A CN101303422A CNA2007101028964A CN200710102896A CN101303422A CN 101303422 A CN101303422 A CN 101303422A CN A2007101028964 A CNA2007101028964 A CN A2007101028964A CN 200710102896 A CN200710102896 A CN 200710102896A CN 101303422 A CN101303422 A CN 101303422A
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- 239000003921 oil Substances 0.000 description 6
- 239000004809 Teflon Substances 0.000 description 4
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- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- -1 Polytetrafluoroethylene Polymers 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
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- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000010634 clove oil Substances 0.000 description 2
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- 210000005252 bulbus oculi Anatomy 0.000 description 1
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- 238000005755 formation reaction Methods 0.000 description 1
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Abstract
The invention relates to a lens unit which comprises a first electrode, a second electrode, a cavity wall, non-polar liquid and conducting liquid. The cavity wall is positioned between the first electrode and the second electrode and forms a chamber with the first electrode and the second electrode. A first material is arranged on the surface of the first electrode and the surface of the first electrode adjacent to the cavity wall in the chamber. The non-polar liquid is filled at one side of the chamber close to the first electrode. The conducting liquid is filled at one side of the chamber close to the second electrode, and the conducting liquid and the non-polar liquid are immiscible. The lens unit can be applied to a lens module and a flat plate display.
Description
Invention field
The present invention relates to a kind of lens unit and use the lens module and the flat-panel monitor of this lens unit, and relate in particular to a kind of active lens unit and use the lens module and the flat-panel monitor of this lens unit.
Background technology
Aspect the development of display technique, except pursue compact, more wish to reach the target that shows stereopsis.At present, stereo display technique can roughly be divided into the user need wear the glasses of particular design or directly bore hole watch dual mode.Now, hyperphoria with fixed eyeballs mirror stereo display technique is full-fledged, and extensively uses as on some specific use such as military affairs simulation or large-scale amusement, but the inconvenience of wearing glasses and uncomfortable this type of technology that makes are difficult universal.Therefore, bore hole formula stereo display technique develops and becomes new trend gradually.
People such as the Hyo Jin Lee of Korea S are at Society for InformationDisplay (SID), 2006, deliver the article of a piece " AHigh Resolution Autostereoscopic Display Employing a TimeDivision Parallax Barrier " by name among the 81st to 84 page of the Digest.Figure 1A and Figure 1B are used to illustrate the display mechanism of this dimensional image display.Please earlier with reference to Figure 1A, this dimensional image display 100 mainly is by a slice display panel 110 and 120 formations of a slice liquid crystal grid (liquidcrystal barrier).Display panel 110 has a plurality of first pixels 112 and a plurality of second pixels 114 that are crisscross arranged, and liquid crystal grid 120 have a plurality of first light valve districts 122 and a plurality of second light valve districts 124 that are crisscross arranged.Dimensional image display 100 time of having used is simultaneously cut apart (time division) and two kinds of display mechanisms of space segmentation (spatial division).
As Figure 1A, between the first phase, length for example is 8.3 milliseconds (millisecond), first pixel 112 of display panel 110 shows the image of the left eye that will be passed to the user, and second pixel 114 then demonstration will be passed to the image of user's right eye.Simultaneously, the first light valve district 122 of liquid crystal grid 120 is in light blocking state, and the second light valve district 124 then is in light and passes through state.By being arranged on the effect of the liquid crystal grid 120 between user and the display panel 110, user's left eye will be seen the left-eye images that first pixel 112 is shown, and user's right eye is then seen the right-eye image that second pixel 114 is shown simultaneously.
As Figure 1B, in the second phase that is right after between the first phase, length for example is 8.3 milliseconds, first pixel 112 of display panel 110 and second pixel 114 show respectively will be passed to user's the right eye and the image of left eye, and first light valve district 122 of liquid crystal grid 120 and 124 in the second light valve district are in light respectively by state and light blocking state simultaneously.At this moment, by the effect of liquid crystal grid 120, user's left eye will be seen the left-eye images that second pixel 114 is shown, and user's right eye is then seen the right-eye image that first pixel 112 is shown simultaneously.
Therefore, between experience adjacent first phase with the second phase after, the user utilizes the effect of persistence of vision can see complete stereopsis.But, since between the first phase with 16.7 milliseconds of the second phase complete during in all make the viewing area that has covered half, so the brightness of the shown stereopsis of dimensional image display 100 has only the General Two-Dimensional image half.Hence one can see that, and known dimensional image display 100 remains the shortcoming that remains to be improved many.
Summary of the invention
The purpose of this invention is to provide a kind of lens unit, its focal length is adjustable.
Another object of the present invention provides a kind of lens module, and the focal length of its each lens unit is adjustable.
Another object of the present invention provides a kind of flat-panel monitor, but the stereopsis of exhibit high brilliance.
The present invention proposes a kind of lens unit, comprises first electrode, second electrode, chamber wall, non-polar liquid and conducting liquid.The chamber wall and constitutes chamber with first and second electrode between first and second electrode.Non-polar liquid is filled in a side of close first electrode in the chamber.Conducting liquid is filled in the chamber side near second electrode, and conducting liquid and non-polar liquid do not dissolve each other.
In an embodiment of this lens unit, further comprise first material, be arranged on the surface of first electrode in the chamber and the surface of contiguous first electrode of chamber wall.The interfacial surface tension value of first material and conducting liquid is greater than the interfacial surface tension value of second electrode and conducting liquid in the chamber, and the increase of the voltage that is applied in first material of the interfacial surface tension value of first material and conducting liquid reduces.In addition, the interfacial surface tension value of first material and conducting liquid can be greater than the surface of contiguous second electrode of chamber wall and the interfacial surface tension value of conducting liquid.
In an embodiment of this lens unit, first electrode and second electrode are transparency electrode.In addition, the material of first electrode and second electrode can comprise indium tin oxide (Indium Tin Oxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO).
In an embodiment of this lens unit, first material can comprise teflon (Polytetrafluoroethylene).
In an embodiment of this lens unit, the material on the surface of contiguous second electrode of chamber wall can comprise polyethylene terephthalate (PolyethyleneTerephthalate).
In an embodiment of this lens unit, non-polar liquid is an oil.
In an embodiment of lens unit, conducting liquid is a water.
In an embodiment of this lens unit, the refractive index of non-polar liquid is greater than the refractive index of conducting liquid.
In an embodiment of lens unit, first material is arranged on all surface of chamber internal chamber wall.In addition, the refractive index of non-polar liquid is less than the refractive index of conducting liquid.
The present invention proposes a kind of lens module in addition, and it comprises a plurality of lens units as the various embodiments described above.The lens unit of part is arranged on first plane, and all the other lens units are arranged on second plane.Wherein, first plane parallel is in second plane, and is arranged on the lens unit on first plane and is arranged between the lens unit on second plane and have side-play amount.
In an embodiment of this lens module, side-play amount is half of two adjacent lens cells spacings.
In an embodiment of this lens module, these lens units are strip and form a line respectively on first plane and second plane.
In an embodiment of this lens module, these lens units are in array-like arrangement respectively on first plane and second plane.
In an embodiment of this lens module, first electrode and second electrode that are arranged on each lens unit on first plane are respectively same electrode layer.
In an embodiment of this lens module, first electrode and second electrode that are arranged on each lens unit on second plane are respectively same electrode layer.
In an embodiment of this lens module, these second electrodes that are arranged on the lens unit on first plane and second plane are same electrode layer.
The present invention further proposes a kind of flat-panel monitor, and it comprises display panel and lens module as the various embodiments described above.This lens module is arranged on the display surface of display panel.
In an embodiment of this flat-panel monitor, display panel is display panels, organic electroluminescent element (Organic Electro-Luminescent Device, OELD) panel or plasma display (Plasma Display Panel, PDP).
In an embodiment of this flat-panel monitor, further comprise backlight module (backlight module).Wherein, display panel be display panels and be arranged on lens module and backlight module between.
In sum, lens unit of the present invention can reach the purpose of adjusting focal length according to applying the variation of voltage.In addition, lens module of the present invention has the advantage of the focal length that can adjust each lens unit equally.In addition, flat-panel monitor of the present invention is not owing to need the shaded portions pixel, so stereopsis that can exhibit high brilliance.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, do following detailed description.
Description of drawings
Figure 1A and Figure 1B are used to illustrate the display mechanism of this dimensional image display;
Fig. 2 A and Fig. 2 B are that the lens unit of one embodiment of the present of invention is at the schematic cross-section that is applied in before and after the voltage;
Fig. 3 A and Fig. 3 B are that the lens unit of another embodiment of the present invention is at the schematic cross-section that is applied in before and after the voltage;
Fig. 4 is the schematic cross-section of the lens module of one embodiment of the present of invention;
Fig. 5 is the schematic cross-section of the lens module of another embodiment of the present invention;
Fig. 6 A and Fig. 6 B are the front elevational schematic of the lens module of two embodiment in addition of the present invention;
Schematic cross-section when Fig. 7 A and Fig. 7 B are adjacent two sequential of the flat-panel monitor of one embodiment of the present of invention.
Embodiment
Fig. 2 A and Fig. 2 B are that the lens unit of one embodiment of the present of invention is at the schematic cross-section that is applied in before and after the voltage.Please earlier with reference to Fig. 2 A, the lens unit 200 of present embodiment comprises first electrode 210, second electrode 220, chamber wall 230, non-polar liquid 250 and conducting liquid 260.Wherein, chamber wall 230 and constitutes cavity C 10 with first and second electrode 210 and 220 between first electrode and second electrode 210 and 220.Non-polar liquid 250 is filled in a side of close first electrode 210 in the cavity C 10, and conducting liquid 260 is filled in sides of close second electrodes 220 in the cavity C 10.In addition, conducting liquid 260 does not dissolve each other with non-polar liquid 250, therefore can have an interface S10 between conducting liquid 260 and non-polar liquid 250.
In addition, the lens unit 200 of present embodiment can further comprise first material 240.First material 240 is arranged on the surface of first electrode 210 in the cavity C 10, and first material 240 also is arranged on the surface of chamber wall 230 contiguous first electrodes 210.Wherein, the interfacial surface tension value of first material 240 and conducting liquid 260 is greater than the interfacial surface tension value of second electrodes 220 in the cavity C 10 with conducting liquid 260.In addition, first material 240 more can be greater than the surface of chamber wall 230 contiguous second electrodes 220 and the interfacial surface tension value of conducting liquid 260 with the interfacial surface tension value of conducting liquid 260.
Specifically, please refer to Fig. 2 A, when not applying a voltage to first material 240 by first and second electrode 210 and 220, because the interfacial surface tension value of first material 240 and conducting liquid 260 is greater than interfacial surface tension value and the surface of chamber wall 230 contiguous second electrodes 220 and the interfacial surface tension value of conducting liquid 260 of second electrode 220 with conducting liquid 260, therefore conducting liquid 260 is subjected to the repulsive force of first material 240 can tend to stay a side of close second electrode 220 in the cavity C 10 greater than the repulsive force that is subjected to the chamber wall and second electrode, and non-polar liquid 250 then tends to stay sides of close first electrodes 210 in the cavity C 10.At this moment, the interface S10 between conducting liquid 260 and the non-polar liquid 250 is rendered as the plane, so can not be converged or disperse during rays pass through lens unit 200.
Please refer to Fig. 2 B, utilize impressed voltage between first and second electrode 210 and 220, by first electrode 210, when second electrode 220 applies a voltage to first material 240 with conducting liquid 260, the interfacial surface tension value of first material 240 and conducting liquid 260 will increase and reduce (principle is asked for an interview periodical literature technology described later) with voltage, make conducting liquid 260 be subjected to the repulsive force of first material and diminish gradually.More specifically, conducting liquid 260 can move to reach stress balance towards first material 240 gradually near the part of first material 240, relatively, the conducting liquid 260 that non-polar liquid 250 is subjected to both sides squeezes and to central uplift, and make the interface S10 between conducting liquid 260 and the non-polar liquid 250 transfer curved surface to by the plane gradually, and the radius-of-curvature of this interface S10 can diminish with the increase of the voltage that puts on first material 240.At this moment, the light of scioptics unit 200 will be converged or be dispersed (deciding on the conducting liquid 260 and the index of refraction relationship of non-polar liquid 250).In addition, therefore the lens unit 200 of present embodiment also has the function of focus adjustable.
Though interface S10 is not to be example with the plane when applying a voltage to first material 240 in Fig. 2 A, but as long as adjust the area distributions ratio of first material 240 in the cavity C 10, or the volume ratio of adjustment conducting liquid 260 and non-polar liquid 250, also can allow interface S10 present concave curved surface down at this moment earlier.Then, when applying a voltage to first material 240, interface S10 can change the plane earlier into by following concave curved surface, or even makes along with the increase of voltage that interface S10's change upper convex surface into again by the plane.Therefore, when not applying a voltage to first material 240, the radius-of-curvature of interface S10 can change design to achieve the goal because of demand is different.
Referring again to Fig. 2 B, publish the related content in the article of " An electromechanicalinterpretation of electrowetting " by name that T B Jones delivered with reference to periodical on April 22nd, 2005 " JOURNAL OFMICROMECHANICS AND MICROENGINEERING " 1184-1187 page or leaf, the relation that can find to put on the angle between the surface of the voltage of first material 240 and the interface S10 and first material 240 can be by following formula expression:
Wherein, V is the voltage (just putting on the cross-pressure between the conducting liquid 260 and first electrode 210) that puts on first material 240, and θ is the angle between the surface of interface S10 and first material 240 when applying a voltage to first material 240, θ
0Angle when not applying a voltage to first material 240 between the surface of the interface S10 and first material 240, ε
0It is a constant 8.85 * 10
-12F/m (Permittivity of Free Space), ε
rBe the specific inductive capacity (Dielectric Constant) of first material 240, d is the thickness of first material 240, and γ is the interfacial surface tension of 250 of conducting liquid 260 and non-polar liquids.By above-mentioned formula as can be known, when putting on the voltage V increase of first material 240, the angle theta between the surface of the interface S10 and first material 240 can diminish thereupon, and promptly the radius-of-curvature of interface S10 can diminish.
In addition, first and second electrode 210 and 220 for example is a transparency electrode, and its material for example is indium tin oxide, indium-zinc oxide or other suitable material.In addition, in order to obtain good structural strength, first and second electrode 210 and 220 can be respectively formed on two substrates 270 and 280.
Moreover the material of first material 240 for example is that the surface tension teflon that is about 18 dyne/centimetres (or claims Teflon, Teflon) or other surface tension materials with smaller.In addition, the material on the surface of contiguous second electrode 220 of chamber wall C10 for example is that surface tension is about 43 dyne/centimetre polyethylene terephthalate (PET) or other surface tension material big than first material.Wherein, the present invention does not limit the material of chamber wall C10 integral body, also can use any suitable material to make chamber wall C10, surface tension value is set in wall C10 surface, chamber again get final product greater than the material of first material 240, its set-up mode for example but not limit be coating and photocuring.
In addition, non-polar liquid 250 for example is oil or other suitable liquid, and conducting liquid 260 for example is water or other suitable liquid, preferably, non-polar liquid 250 can be oil, for example be to adopt refractive index to be about 1.53 caryophyllus oil (Clove oil), and conducting liquid 260 can be water, for example be to adopt refractive index to be about 1.33 water (surface tension is about 73 dyne/centimetres), at this moment, when the refractive index of non-polar liquid 250 during greater than the refractive index of conducting liquid 260, lens unit 200 can produce the effect of converging to the light that passes through under as the state of Fig. 2 B.Otherwise when the refractive index of the non-polar liquid 250 that adopts during less than the refractive index of conducting liquid 260, lens unit 200 can be to the light generation disperse function that passes through under as the state of Fig. 2 B.In fact, be in the embodiment of material of conducting liquid 260 adopting water, the material more hydrophilic than first material 240 used on the surface of contiguous second electrode 220 of chamber wall C10, can make lens unit 200 reach above-mentioned effect.
Fig. 3 A and Fig. 3 B are that the lens unit of another embodiment of the present invention is at the schematic cross-section that is applied in before and after the voltage.Please earlier with reference to Fig. 3 A, the lens unit 300 of present embodiment is that with the difference of the lens unit 200 of Fig. 2 A first material 340 is arranged on all surface of cavity C 10 internal chamber walls 230, and all the other similar elements are then with the similar elements symbolic representation and omit its explanation.
Please refer to Fig. 3 A, when not applying a voltage to first material 340 by first and second electrode 210 and 220, because the interfacial surface tension value of first material 340 and conducting liquid 260 is greater than the interfacial surface tension value of second electrode 220 with conducting liquid 260, therefore conducting liquid 260 meeting tendencies are avoided contacting first material 340 and are shunk, and non-polar liquid 250 is squeezed by conducting liquid 260 then and tends to contact first material, 340 most surfaces.At this moment, the interface S20 between conducting liquid 260 and the non-polar liquid 250 is rendered as curved surface, so can be converged or disperse (deciding on the conducting liquid 260 and the index of refraction relationship of non-polar liquid 250) during rays pass through lens unit 300.
Please refer to Fig. 3 B, when applying a voltage to first material 340 by first electrode 210, second electrode 220 and conducting liquid 260, the interfacial surface tension value of first material 340 and conducting liquid 260 will increase and reduce with voltage, make the radius-of-curvature change of interface S10 greatly to reach stress balance.More specifically, conducting liquid 260 can be got close to first material 340 gradually, and make the interface S20 between conducting liquid 260 and the non-polar liquid 250 transfer the plane to by curved surface gradually, and the radius-of-curvature of this interface S20 also can become big with the increase of the voltage that puts on first material 340.When interface S20 becomes the plane, the light of scioptics unit 300 will can not converged or be dispersed.Therefore, the lens unit 300 of present embodiment has the function of focus adjustable equally.
In addition, when the refractive index of non-polar liquid 250 during greater than the refractive index of conducting liquid 260, lens unit 300 can produce disperse function to the light that passes through under as the state of Fig. 3 A, preferably, non-polar liquid 250 can be oil, for example be to adopt refractive index to be about 1.53 caryophyllus oil (Clove oil), and conducting liquid 260 can be water, for example is to adopt refractive index to be about 1.33 water (surface tension is about 73 dyne/centimetres).Otherwise when the refractive index of non-polar liquid 250 during less than the refractive index of conducting liquid 260, lens unit 300 can produce the effect of converging to the light that passes through under as the state of Fig. 3 A.
Fig. 4 is the schematic cross-section of the lens module of one embodiment of the present of invention.Please earlier with reference to Fig. 4, the lens module 400 of present embodiment has comprised a plurality of lens units 410 and 420.These lens units 410 and 420 can be as the lens unit 200 of Fig. 2 A or the lens unit of other essential features according to the invention.Wherein, lens unit 410 is arranged on the first plane (not shown), promptly all lens units 410 all at grade, and lens unit 420 is arranged on the second plane (not shown), promptly all lens units 420 all at grade.First plane is parallel to second plane in fact.Simultaneously, be arranged on the lens unit 410 on first plane and be arranged on location side-play amount D10 between the lens unit 420 on second plane.Just, the position of each lens unit 410 is not corresponding to the position of each lens unit 420.
By above-mentioned design, the user can adjust the lens unit 410 in lens module 400 Zhong Ge districts and/or 420 characteristic that converges light and focal length on one's own initiative, to satisfy the diversified user demand of user.
In addition, side-play amount D10 for example is half of spacing (pitch) of any two adjacent lenses unit 410 or 420.In addition, first electrode 412 that is arranged on each lens unit 410 on first plane equally can be same electrode layer, and in like manner, second electrode 414 also can be same electrode layer.Just, first electrode 412 of each lens unit 410 can be made of the different piece of same electrode layer, and second electrode 414 of each lens unit 410 also can be made of the different piece of same electrode layer.Therefore, when the loss of not considering resistance and being caused, the voltage that puts on all lens units 410 can be identical.Similarly, first electrode 422 that is arranged on each lens unit 420 on second plane equally can be same electrode layer, and second electrode 424 also can be same electrode layer.Just, first electrode 422 of each lens unit 420 can be made of the different piece of same electrode layer, and second electrode 424 of each lens unit 420 also can be made of the different piece of same electrode layer.Therefore, when the loss of not considering resistance and being caused, the voltage that puts on all lens units 420 can be identical.
Moreover, second electrode 414 and 424 of each lens unit 410 and 420 can be designed to same electrode layer.At this moment, the voltage that two kinds of different potentials only need be provided is to lens unit 410 and 420, can make all lens units 410 have the focal length different with lens unit 420.For example, as shown in Figure 4, its interface 426 is not the plane when applying a voltage to lens unit 420, and the light of scioptics unit 420 will can not converged or disperse.Simultaneously, its interface 416 is curved surface when applying a voltage to lens unit 410, and the light of scioptics unit 410 can be converged or disperse.
Fig. 5 is the schematic cross-section of the lens module of another embodiment of the present invention.Please refer to Fig. 5, the lens module of present embodiment 500 is with the difference of the lens module 400 of Fig. 4, and the lens unit 510 of lens module 500 is identical with 520 and the lens unit 300 of Fig. 3 A, and all the other similar elements are then with the similar elements symbolic representation and omit its explanation.
Fig. 6 A and Fig. 6 B are the front elevational schematic of the lens module of two other embodiment of the present invention.Please refer to Fig. 6 A, for example the lens unit 610a of lens module 600a is strip to be arranged into row.Please refer to Fig. 6 B, for example the lens unit 610b of lens module 600b is in array-like arrangement.In addition, the size of lens unit 610b can be width less than 2 millimeters, usually such size can make the suffered gravity effect of conducting liquid littler than suffered effect of surface tension, and makes the characteristic of surface tension control conducting liquid shape comparatively obvious.
Fig. 7 A and Fig. 7 B are the schematic cross-section during adjacent two sequential of flat-panel monitor of one embodiment of the present of invention the time.Please earlier with reference to Fig. 7 A, the flat-panel monitor 700 of present embodiment comprises display panel 710 and lens module 720 as the various embodiments described above.Lens module 720 is arranged on the display surface of display panel 710.Just, the user is when watching flat-panel monitor 700, and lens module 720 is between user and display panel 710.In addition, for example display panel 710 is display panels of display panels, organic electroluminescent element panel, plasma display or other appropriate format.For example on display panel 710, have a plurality of pixels 712 and 714.
By the narration of aforementioned each embodiment as can be known, the lens unit 722 of lens module 720 is with 724 voltages that can apply by adjustment and have different focal lengths respectively.Shown in Fig. 7 A, during this sequential in, the pixel 712 of display panel 710 is to show the image of watching for user's right eye, the pixel 714 of display panel 710 is the image watched for user's left eye of demonstration then.Simultaneously, adjust the voltage that puts on lens module 720, make lens unit 722 performances converge the effect of light, and adjustment lens unit 724 exerts an influence to prevent it for the light going direction that passes through.Therefore, the image that provided of pixel 712 will be passed to user's right eye by the effect of each lens unit 722.Simultaneously, the image that provided of pixel 714 then can be passed to user's left eye by the effect of each lens unit 722.
Then, shown in Fig. 7 B, during back to back next sequential in, the pixel of display panel 710 712 shows the image of watching for users' left eye, the pixel 714 of display panel 710 is the image watched for user's right eye of demonstration then.Simultaneously, adjust the voltage put on lens module 720, adjust lens unit 722 preventing its influence, and make lens unit 724 performances converge the effect of light for light going direction.Owing to have side-play amount between the lens unit 722 and 724, so the image that pixel 712 provided will change the left eye that is passed to the user via the effect of each lens unit 724 into.Simultaneously, the image that pixel 714 provided then changes the left eye that is passed to the user via the effect of each lens unit 724 into.
In this way, user's right eye receives respectively by pixel 712 and 714 images that offer right eye in can be during two adjacent sequential, user's left eye receives respectively by pixel 714 and 712 images that offer left eye in then can be during two adjacent sequential, and sees complete and three-dimensional image frame by the effect of persistence of vision.Owing in the flat-panel monitor 700 of present embodiment, do not cover the image that any display panel 710 is provided, therefore can significantly increase the brightness of image.In addition, owing to apply the focal length that the voltage difference can change lens unit 722 and 724, so the flat-panel monitor 700 of present embodiment also can be according to the needs of watching the user by (for example using the interface; Telepilot) and appropriateness is adjusted and to be put on the voltage of lens module, dynamically change focal position, to allow the user all see best stereopsis in any distance.In addition, if adjust lens unit 722 and 724, it is neitherly impacted to light going direction, then the flat-panel monitor 700 of present embodiment also can be used for providing bidimensional image.
Moreover, when display panel 710 is display panels, backlight module 730 is set optionally, and makes display panel 710 between lens module 720 and backlight module 730.
In sum, the characteristic that lens unit of the present invention utilizes the surface tension value of first material on the wall of chamber to change with the voltage swing that is applied in can be adjusted the curvature at interface between conducting liquid and non-polar liquid, and reach the purpose of adjusting focal length.In addition, lens module of the present invention is arranged by a plurality of aforementioned lens unit to form, and therefore has the advantage of the focal length that can adjust each lens unit equally.In addition, flat-panel monitor of the present invention is owing to use aforementioned lens module, and therefore can make full use of each pixel and need not the shaded portions pixel, and then the stereopsis of exhibit high brilliance.
Though the present invention discloses by above preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when looking appended being as the criterion that claim defined.
Claims (23)
1, a kind of lens unit comprises:
First electrode;
Second electrode;
The chamber wall between this first electrode and this second electrode, and constitutes chamber with this first electrode and this second electrode;
Non-polar liquid is filled in the interior side near this first electrode of this chamber; And
Conducting liquid is filled in the interior side near this second electrode of this chamber, and this conducting liquid and this non-polar liquid do not dissolve each other.
2, lens unit as claimed in claim 1 further comprises:
First material, be arranged on the surface of this first electrode in this chamber and the surface of contiguous this first electrode of this chamber wall at least, the interfacial surface tension value of this first material and this conducting liquid is greater than the interfacial surface tension value of this second electrode and this conducting liquid in this chamber, and the increase of the interfacial surface tension value of this first material and this conducting liquid voltage that can be applied in described first material reduces.
3, lens unit as claimed in claim 2, the interfacial surface tension value of this first material and this conducting liquid is greater than the surface of contiguous this second electrode of this chamber wall and the interfacial surface tension value of this conducting liquid.
4, as claim 1,2 or 3 described lens units, wherein this first electrode and this second electrode are transparency electrode.
5, as claim 1,2 or 3 described lens units, wherein the refractive index of this non-polar liquid is greater than the refractive index of this conducting liquid.
6, lens unit as claimed in claim 2, wherein this first material is arranged on all surface of this chamber wall in this chamber.
7, lens unit as claimed in claim 6, wherein the refractive index of this non-polar liquid is less than the refractive index of this conducting liquid.
8, a kind of lens module comprises:
A plurality of lens units, the described lens unit of part is arranged on first plane, all the other described lens units are arranged on second plane, this second plane of this first plane parallel wherein, be arranged on the described lens unit on this first plane and be arranged between the described lens unit on this second plane and have side-play amount, each this lens unit comprises:
First electrode;
Second electrode;
The chamber wall between this first electrode and this second electrode, and constitutes chamber with this first electrode and this second electrode;
Non-polar liquid is filled in the interior side near this first electrode of this chamber; And
Conducting liquid is filled in the interior side near this second electrode of this chamber, and this conducting liquid and this non-polar liquid do not dissolve each other.
9, lens module as claimed in claim 8 further comprises:
First material, be arranged on the surface of this first electrode in this chamber and the surface of contiguous this first electrode of this chamber wall at least, the interfacial surface tension value of this first material and this conducting liquid is greater than the interfacial surface tension value of this second electrode and this conducting liquid in this chamber, and the increase of the interfacial surface tension value of this first material and this conducting liquid voltage that can be applied in this first material reduces.
10, lens module as claimed in claim 9, the interfacial surface tension value of this first material and this conducting liquid is greater than the surface of this second electrode of vicinity of this chamber wall and the interfacial surface tension value of this conducting liquid.
11, lens module as claimed in claim 8, wherein this side-play amount is half of spacing of two adjacent these lens units.
12, lens module as claimed in claim 8, wherein said lens unit is strip, and forms a line respectively on described first plane and this second plane.
13, lens module as claimed in claim 8, wherein said lens unit is in array-like arrangement respectively on this first plane and this second plane.
14, lens module as claimed in claim 8, described first electrode and described second electrode that wherein are arranged on the described lens unit on this first plane are respectively same electrode layer.
15, lens module as claimed in claim 8, described first electrode and described second electrode that wherein are arranged on the described lens unit on this second plane are respectively same electrode layer.
16, lens module as claimed in claim 8, described second electrode that wherein is arranged on the described lens unit on this first plane and this second plane is same electrode layer.
17, as claim 8,9 or 10 described lens modules, wherein this first electrode and this second electrode are transparency electrode.
18, as claim 8,9 or 10 described lens modules, wherein the refractive index of this non-polar liquid is greater than the refractive index of this conducting liquid.
19, lens module as claimed in claim 9, wherein this first material is arranged on all surface of this chamber wall in this chamber.
20, lens module as claimed in claim 19, wherein the refractive index of this non-polar liquid is less than the refractive index of this conducting liquid.
21, a kind of flat-panel monitor comprises:
Display panel;
Lens module is provided with on the display surface of this display panel, and this lens module comprises:
A plurality of lens units, the described lens unit of part is arranged on first plane, all the other described lens units are arranged on second plane, wherein this first plane parallel is in this second plane, be arranged on the described lens unit on this first plane and be arranged between the described lens unit on this second plane and have side-play amount, respectively this lens unit comprises:
First electrode;
Second electrode;
The chamber wall between this first electrode and this second electrode, and constitutes chamber with this first electrode and this second electrode;
Non-polar liquid is filled in the interior side near this first electrode of this chamber; And
Conducting liquid is filled in the interior side near this second electrode of this chamber, and this conducting liquid and this non-polar liquid do not dissolve each other.
22, flat-panel monitor as claimed in claim 21 further comprises:
First material, be arranged on the surface of this first electrode in this chamber and the surface of contiguous this first electrode of this chamber wall at least, the interfacial surface tension value of this first material and this conducting liquid is greater than the interfacial surface tension value of this second electrode and this conducting liquid in this chamber, and the increase of the voltage that is applied in this first material of the interfacial surface tension value of this first material and this conducting liquid increases.
23, flat-panel monitor as claimed in claim 22, the interfacial surface tension value of this first material and this conducting liquid is greater than the surface of contiguous this second electrode of this chamber wall and the interfacial surface tension value of this conducting liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101028964A CN101303422B (en) | 2007-05-11 | 2007-05-11 | Lens unit and lens module using the same as well as flat panel display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101028964A CN101303422B (en) | 2007-05-11 | 2007-05-11 | Lens unit and lens module using the same as well as flat panel display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101303422A true CN101303422A (en) | 2008-11-12 |
| CN101303422B CN101303422B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101028964A Expired - Fee Related CN101303422B (en) | 2007-05-11 | 2007-05-11 | Lens unit and lens module using the same as well as flat panel display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101303422B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088615A1 (en) * | 2010-01-20 | 2011-07-28 | 深圳超多维光电子有限公司 | Stereoscopic display device and display method |
| CN103941410A (en) * | 2014-04-29 | 2014-07-23 | 深圳市丽新致维显示技术有限责任公司 | Display device and display method thereof |
| WO2015096338A1 (en) * | 2013-12-26 | 2015-07-02 | 京东方科技集团股份有限公司 | 2d/3d switching apparatus and display device |
| CN105390066A (en) * | 2015-12-02 | 2016-03-09 | 昆山龙腾光电有限公司 | Display device |
| WO2017028435A1 (en) * | 2015-08-20 | 2017-02-23 | 京东方科技集团股份有限公司 | Control method and control apparatus for 3d display device, and 3d display device |
| CN110661956A (en) * | 2019-10-14 | 2020-01-07 | Oppo广东移动通信有限公司 | Camera module and terminal equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100952184B1 (en) * | 2002-02-20 | 2010-04-09 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | Display apparatus |
| CN100478734C (en) * | 2004-05-07 | 2009-04-15 | 皇家飞利浦电子股份有限公司 | Electrowetting cell and method of manufacturing an electrowetting cell |
| JP4863044B2 (en) * | 2005-07-21 | 2012-01-25 | ソニー株式会社 | Display device, display control method, and program |
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- 2007-05-11 CN CN2007101028964A patent/CN101303422B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088615A1 (en) * | 2010-01-20 | 2011-07-28 | 深圳超多维光电子有限公司 | Stereoscopic display device and display method |
| WO2015096338A1 (en) * | 2013-12-26 | 2015-07-02 | 京东方科技集团股份有限公司 | 2d/3d switching apparatus and display device |
| US9759904B2 (en) | 2013-12-26 | 2017-09-12 | Boe Technology Group Co., Ltd. | 2D/3D switching apparatus and display device |
| CN103941410A (en) * | 2014-04-29 | 2014-07-23 | 深圳市丽新致维显示技术有限责任公司 | Display device and display method thereof |
| CN103941410B (en) * | 2014-04-29 | 2017-01-18 | 深圳创锐思科技有限公司 | Display device and display method thereof |
| WO2017028435A1 (en) * | 2015-08-20 | 2017-02-23 | 京东方科技集团股份有限公司 | Control method and control apparatus for 3d display device, and 3d display device |
| CN105390066A (en) * | 2015-12-02 | 2016-03-09 | 昆山龙腾光电有限公司 | Display device |
| CN110661956A (en) * | 2019-10-14 | 2020-01-07 | Oppo广东移动通信有限公司 | Camera module and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101303422B (en) | 2012-06-27 |
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