CN103688210A - Stereoscopic 3D display screen with integrated photovoltaic cells, and production method thereof - Google Patents
Stereoscopic 3D display screen with integrated photovoltaic cells, and production method thereof Download PDFInfo
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- CN103688210A CN103688210A CN201280007282.7A CN201280007282A CN103688210A CN 103688210 A CN103688210 A CN 103688210A CN 201280007282 A CN201280007282 A CN 201280007282A CN 103688210 A CN103688210 A CN 103688210A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/30—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving parallax barriers
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- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
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Abstract
The invention relates to a stereoscopic three-dimensional display device (1), in particular a digital screen, comprising: (a) an array (3) of pixels (4a, 4b) distributed between a first group forming a first image and a second group forming a second image; and (b) an array (5) of surface elements (6,16, 26) that absorb visible light at least partially, said array (5) being parallel to the screen (1) and placed between the array (3) of pixels (4a, 4b) and the observer (8). The device is characterized in that the surface elements (6, 16, 26) comprise photovoltaic cells (7) on at least one of the faces thereof. The device is also characterised in that the surface elements are configured in relief such as to limit the output angle (a) of the first and second image and are disposed such that, for a given observation distance, the right eye (9) of a user (8) of the display device (1) only sees the first image and the user's left eye (10) only sees the second image. In this way, a 3D digital display screen is formed that can generate an electrical current from photovoltaic cells in relief disposed in front of the array (3) of pixels (4a, 4b).
Description
Technical field
The present invention relates to flat panel display equipment field, and backlit display screen field especially.This type of screen that comprises a lot of backlight pixels is known by people for a long time and is applied to for example function of mobile phone, game machine and counter of televisor, computer, miniature portable equipment.
Background technology
Here said " backlight " pixel refers to, is positioned at the pixel (for example liquid crystal pixel) before the light source from backside-illumination.In screen backlight, in order to improve contrast, by the light source of scattering be arranged on pixel planes after.
Be typically provided with the portable equipment of battery supply, be important ease for use key element its cruising time.In order to increase this cruising time, integrated photoelectric cell in described portable equipment, photoelectric cell is at a part of required electric current of described portable equipment generation in service.On portable equipment outside surface, place photronic useful size or space while greatly being reduced, just photoelectric cell need to be arranged in display screen.Patent documentation US2007/0102035 (X.Yang) has set forth for this type of integrated example.Yet, these photoelectric cells must not make the imaging features of its place screen or luminosity deteriorated, why Here it is can be used for these photronic total surfaces is in fact very limited.In fact, photronic width can not obviously be greater than two distances between pixel, and this distance is to be hoped the distance of minimizing to improve the resolution of screen.
In addition, known 3D display screen has stereoeffect, is also sometimes referred to as disparity barrier formula screen.It relates to the screen that simultaneously presents two images, and the image in fact being received by observer depends on that observer is with respect to the position of described screen surface.For example, when observer before screen sidesway or when observer near or during away from screen, the image that this observer receives can change.In having some 3D screen of stereoeffect, this effect can allow to perceive three-dimensional stereopsis or the similar sensation by the image of screen display.In patent US7697105 (Sharp), set forth such device.Within certain observed range, this device allows to perceive the 3D vision of the shown image of screen.This effect produces by parallel zone of opacity net.But these bands have reduced the luminosity of screen.But, increase photoelectric cell make the imaging features of this screen and/or luminosity deteriorated be less desirable.
Summary of the invention
This problem can solve by the present invention, and the present invention is especially applied to backlit display screen, but for example also can be applied to comprise, in the screen of directly luminous pixel (pixel consisting of one or several electroluminescent diodes).In addition, the present invention can be applied to the display device of non-screen equally, and for example imaging pixel is only the device throwing light on by ambient lighting, such as the imaging pixel being printed on paper.
But, very important application of the present invention consists of screen, hereinafter, and for simplicity, to design by " screen " this term and state dissimilar image forming medium, but this simplification can not limit the application of meaning of the present invention in the display device of other types.
According to of the present invention, photovoltaic cell is applied in three-dimensional (or 3D) digital display screen with stereoeffect and can make the imaging of screen and/or the deterioration in characteristics of luminosity, it is realized by having the 3D display device (1) of stereoeffect, and it comprises:
(a) divide the array of the pixel of the second group of pixel that is shaped as first group of pixel of the first image and forms the second image, and
(b) absorb at least in part the surface element net of visible rays, this network is parallel with screen and be arranged between observer and the array of pixel, this screen is characterised in that, described surface element comprises the photovoltaic cell being arranged on one of them surface, and surface element arranges to limit the mode of the output angle α between described the first image and described the second image, and the set-up mode of described surface element is for certain observed range, the user's of described screen right eye can only be seen described the first image, and its left eye can only be seen described the second image, thereby the projection or the 3D vision that are conducive to the image that presented by described pel array.
Preferably, with the surface element of photovoltaic cell, to limit the mode of image output angle [alpha], arrange, the value of the output angle α of the image being presented by pixel is between several years to 30 degree, and this value is more preferably less than 15 degree.
Screen can be the screen backlight that the light source by being positioned at after pel array consists of backlight pixels array, and/or these pixels emission of light (for example, the in the situation that of electroluminescent pixel) on one's own initiative.
Described surface element, may be also opaque element, and can adopt cross section is the form of almost parallel six shapes, circle, ellipses and/or the polygonal layer that has three sides at least.Surface element advantageously and its width y parallel with screen with its length x is cutting off or through the upwardly extending mode in side of screen, preferably in the upwardly extending mode in the side vertical with screen, is arranging.Surface element can form parallel network, and the length x of described surface element is parallel.
Described photovoltaic cell can be arranged on the surface of described surface element, in the plane that these surfaces form at the length z by them and width x, extends.These photovoltaic cells are the thin layer photovoltaic cell based on amorphous or microcrystal silicon advantageously, because the battery of this type is particularly suitable for making low-intensity light, (diffusion light, element internal light) changes; But also can manufacture the photovoltaic cell of realizing by any other appropriate technology, for example, based on CdTe or CIGS (copper-pluging with molten metal-gallium-selenium) or based on polymkeric substance.
In screen according to the present invention, described surface element is advantageously provided into so that for the identical appointment observed range of the use with equipment is stipulated, the user's of described screen (observer) right eye can only be seen first group of pixel, and its left eye can only be seen second group of pixel, described first group of pixel is different from described second group of pixel, and every group of pixel can present different images, to be conducive to the protruding impression (visual impression more precisely) or the 3-dimensional image (or image) that are presented by described pel array.In the case, not being observed the pixel that person's arbitrary eyes observe is hidden by surface element.This observed range that can observe three-dimensional 3D effect for it depends on the purposes of equipment defined; For example, for the screen for portable equipment (mobile phone, micro-television screen), this distance typically is between about 20-60cm, for laptop computer screen, typically is between about 30-80cm, screen for parlor with large scale TV machine, this distance is between about 2-5 rice.
Accompanying drawing explanation
Fig. 1-4 schematically show some embodiment of the present invention, but the present invention is not limited to these embodiments.Obviously, all embodiments with and any variations can interosculate to each other.But some element of for technician knowing essential for the operation of display screen be shown in these figure, field effect transistor layer especially, and it is necessary for imaging in liquid crystal display.
Embodiment
Fig. 1 schematically shows first embodiment of the present invention, referred to herein as " flat bed " formula embodiment.Fig. 1 shows the square section according to display screen of the present invention.According to display screen 1 of the present invention, comprise by the array 3 of the backlight pixels 4 of straight light source 2, and absorb at least in part the net 5 of the surface element 6 of visible rays and resistance light.The net 5 of described surface element 6 and the plane parallel setting of screen 1 and between the array 3 and observer 8 of pixel 4.Described surface element 6 is located so that it limits the output angle α of the image being represented by pixel 4, and this output angle α limits with respect to the vertical direction of screen.As shown in the illustration of the upper right quarter in Fig. 1, each surface element 6 (or at least a part for surface element 6) comprises and is located at least one lip-deep at least one photovoltaic cell 7.In the example of Fig. 1, the surface that it illuminates for the array 3 by backlight pixels 4.In first modification of this embodiment, photovoltaic cell 7 is positioned on the reverse side of described surface element 6, is positioned on observer 8 front surface.In second modification of this embodiment, at least on two surfaces of described surface element 6, be provided with photovoltaic cell 7, for example, on the rear surface of illuminating at the array 3 by pixel 4 and on the surface towards observer 8, and/or on two side surfaces or on one of them surface of these two side surfaces.Straight light source 2 can be astigmatic mating plate.In a modification of this embodiment, the array 3 of pixel 4 is not backlight by light source 2, but each pixel 4 itself forms light source, for example, by electroluminescence.
In the example of Fig. 1, surface element 6 is the layers of putting down in the plane that is arranged on net 5, and these layer of plane parallel and screen 1 forms net 5.More precisely, conventionally by the layer 6 of its length direction (being also referred to as length) x, width y and thickness z definition, be arranged to the plane that its width y is parallel to net 5.Conventionally, described surface element 6,16 can comprise that photovoltaic cell 7 maybe can form photovoltaic cell (this embodiment does not illustrate in the drawings).
Fig. 2 schematically shows second embodiment of the present invention (referred to herein as " layer of standing " formula embodiment), the difference of this embodiment and the first embodiment is the following fact, be that surface element 16 is plane parallel of being arranged to its length x and screen 1, and its width y is in the direction of the plane through screen 1 and preferably at the upwardly extending layer in the side of normal to screen 1.As shown in the illustration in the upper right corner in Fig. 2, each surface element 16 comprises at least one photovoltaic cell 7 on its at least one surface, or rather, be on the surface of extending in the plane forming along the width by surface element 16 and length at least one, preferably on the surface under two above-mentioned definition, comprise at least one photovoltaic cell 7.
Fig. 3 schematically shows the embodiment of (with Visual Angle in Perspective) another " layer of standing " formula, and wherein the cross section of surface element 26 is trapezoidal.Conventionally, in " stand layer " formula embodiment, for photronic surface is set, be greater than " flat bed " formula embodiment for photronic surface is set, and its three-dimensional 3D effect will be distincter conventionally, angle [alpha] will be less.
According in screen 1 of the present invention, be preferably stratiform and more preferably use the net 5 of surface element 6,16,26 of the embodiment of " layer of standing " formula can obtain the effect identical with the privacy screen (English is Privacy Screen) of known type (described privacy screen is for example all described in patent EP0563241B1 (Minnesota mining industry and manufacturing company), patented claim WO2007/106285 (3M Innovation Property Co., Ltd) and patented claim US2008/0088905 (NECLCD technology company limited)).
Angle [alpha] can be fixed to a value in other words, makes the observer 8 who locates at a certain distance with respect to the axis of normal to screen will no longer see pixel, and pixel is fully by surface element 6,16,26 hide.Angle [alpha] depends on the geometric features of equipment regulation, and especially surface element 6,16, the distance between 26 net 5 and the array 3 of pixel 4, surface element 6,16,26 shape and direction and two surface elements 6,16, the distance between 26.
According to the significant especially application of screen 1 of the present invention, be, three-dimensional (or being at least protruding) vision of standard (or perception more precisely) of image is produced by the array 3 of pixel 4.In fact, described surface element can be arranged so that in the certain distance of screen 1, the left eye 10 that is positioned at the observer 8 in screen 1 the place ahead can only be seen the P1 of first of the pixel 4a that forms the first image, and its right eye 9 can only be seen the second portion P2 of different from the P1 of first of the pixel at least in part pixel 4b corresponding to the second image.Each part P1, P2 (or group) of pixel can represent different images, thereby are conducive to protruding visual impression of the observer 8.
Like this, according to screen 1 of the present invention, can transform for the various application occasions of polytype screen and mancarried electronic aid.
Conventionally, surface element 6,16,26 can have various shapes.For example, they can be parallelepipedon (as illustrated in fig. 1 and 2), but its cross section can be also circular, oval and/or with the polygon (as shown in Figure 3) at least 3 limits, or adopt other shape.As shown in Figure 4, the selection of the width y of the surface element 6 by the distance between the array 3 of the width of pixel 4, pixel 4 and the net 5 of surface element 6 and employing, can change angle [alpha] as required.
Photovoltaic cell 7 can adopt any known and suitable thin-bed technique.Especially, in " layer of standing " formula embodiment, preferably use and there is the battery (for example battery based on amorphous silicon or the microcrystal silicon) low light level to good transformation rate, because described battery is mainly caught diverging light, and in " flush system " embodiment, battery is mainly caught direct light.
Conventionally, pixel 4 does not need all in same plane, but can be arranged in the plane of several almost parallels.According to technology known to the skilled, pixel 4 can be subdivided into lattice to realize colored demonstration, for example each pixel is subdivided into three lattice of red, green and blue look.
According to screen 1 of the present invention, can comprise other elements of optimizing its characteristic or being suitable for some special applications.For example, can comprise and be arranged on surface element 6,16,26 net 5 and anti-reflection layer or the plate between observer 8.Also can comprise one or several following elements: colored filter, polarization filter, light diffuser, protective seam.Screen 1 can be also soft screen.
In all embodiments, the net 5 that at least one surface is provided with the surface element 6,16,26 of photovoltaic cell 7 therein can be protected by least one protective seam (not shown), and protective seam can be hard or soft, continuous or discontinuous.For example, protective seam can be polymer film, is preferably the film that the outside surface being arranged on described net 5 is provided with anti-reflecting surface, and/or is at least arranged on the thin layer on the outside surface of photovoltaic cell 7.
In the unshowned embodiment of the present invention, surface element 6,16,26 net 5 forms the integral body that can be attached on digital display screen to form the digital display screen 1 with three-dimensional 3D effect as above.More particularly; this integral body can consist of hyaline membrane; be preferably mantle or half dura mater; its material typically is polymeric material, at the described net 5 that is provided with on the whole described surface element 6,16; described surface element 6; 16 net 5 comprises photovoltaic cell 7 on one of them surface, and this surface can be protected by protective seam as mentioned above, and protective seam can be for example overlay coating (thin layer) or mantle.The integral body that is referred to as " three-dimensional 3D effect photovoltaic film " at this can for example be posted and fixed on digital display screen outside surface by gluing.This outside surface is preferably level and smooth; This plane can be smooth or bowing, hard or soft.This three-dimensional 3D effect photovoltaic film also can comprise electrode (not shown), and electrode is typically form of film, and it is necessary for the connection between photovoltaic cell and electric current collection.
By using according to the method for the three-dimensional 3D effect digital display screen 1 of photovoltaic film manufacture of the present invention, comprise the following steps: the digital display screen of preparing to comprise smooth outer surface, preparation is according to three-dimensional 3D effect photovoltaic film of the present invention, thereby described photovoltaic film is preferably merged to be fixed on by glue, forms three-dimensional 3D effect digital display screen 1 on digital display screen.After on the outside surface that film is fitted in to screen, to between the electrode of 3D photovoltaic film and the source element of screen, be electrically connected to, thereby make the electric energy being generated by photovoltaic cell 7 can carry out to the portable or fixing electronic equipment comprising screen of the present invention electricity supply.This power supply can be that direct power supply can be also indirect power supply (by electrical power storage equipment is charged, for example rechargeable battery or electric capacity).
According to three-dimensional 3D effect digital display screen 1 of the present invention, can be included in fixing or portable electronic equipment; This equipment forms another theme of the present invention.
Claims (17)
1. a display device (1) with three-dimensional 3D effect, comprising:
(a) divide the array (3) of the pixel (4a, 4b) between the second group of pixel (P2) that is shaped as first group of pixel (P1) of the first image and forms the second image, and
(b) absorb at least in part the surface element (6 of visible rays, 16, 26) net (5), described net (5) is parallel with display device (1) and be arranged on observer (8) and pixel (4a, between array 4b) (3), described display device (1) is characterised in that, described surface element (6, 16, 26) comprise the photovoltaic cell (7) being arranged on one of them surface, and described surface element (6, 16, 26) be arranged in case limit described first and described the second image between output angle (α), and described surface element (6, 16, 26) be arranged to so that for certain observed range, the observer's (8) of described display device (1) right eye (9) can only be seen described the first image, and its left eye (10) can only be seen described the second image, thereby be conducive to by described pixel (4a, projection or the 3D vision of the image (s) that array 4b) (3) presents.
2. display device according to claim 1 (1), it is characterized in that, be provided with the described surface element (6,16 of photovoltaic cell (7), 26) be arranged to limit the output angle (α) of the first and second images, it is the angle between several years to 30 degree roughly.
3. display device according to claim 1 and 2 (1), it is characterized in that, described device (1) is the form of the screen (1) that array (3) by being positioned at pixel (4) light source (2) afterwards forms by the array (3) of backlight pixels (4).
4. display device according to claim 1 and 2 (1), is characterized in that, described display device (1) is the form of the screen (1) that the array (3) by electroluminescent pixel (4) forms.
5. display device according to claim 1 and 2 (1), is characterized in that, described display device (1) is the form of the imaged medium (1) that the array (3) by the pixel being illuminated by surround lighting (4) forms.
6. according to the display device one of the claims Suo Shu (1), it is characterized in that, the described surface element (6,16,26) that absorbs at least in part visible rays is to hinder light.
7. according to the wherein display device described in (1) of claim 1 to 6, it is characterized in that, described surface element (6,16,26) is the form of the layer in the polygonal cross section that has almost parallel six shapes, circle, ellipses and/or have three sides at least.
8. according to the wherein display device described in (1) of claim 1 to 7, it is characterized in that, described surface element (6,16,26) be arranged to so as its length x to be parallel with screen (1) and its width y through the direction of screen (1), and preferably in the side of normal to screen (1), extend upward.
9. according to the wherein display device described in (1) of claim 1 to 8, it is characterized in that, described surface element (6,16,26) is arranged to form parallel network, between the length x of described surface element (6,16,26), is parallel.
10. according to the wherein display device described in (1) of claim 1 to 8, it is characterized in that, described photovoltaic cell (7) is arranged on described surface element (6,16,26) on surface, extend in the plane of the length z by described surface element (6,16,26) and width x formation on these surfaces.
11. according to the wherein display device described in (1) of claim 1 to 9, it is characterized in that, described photovoltaic cell (7) is based on amorphous or microcrystal silicon, sheet cell based on CdTe or CIGS.
12. according to the wherein display device described in (1) of claim 1 to 11; it is characterized in that; on at least one surface, comprise therein the surface element (6 of photovoltaic cell (7); 16; 26) net (5) comprises at least one protective seam; described protective seam can be hard or soft, continuous or discontinuous.
13. display device according to claim 12 (1); it is characterized in that; described protective seam is arranged on the polymer film that is provided with on its outer surface anti-reflecting surface on described net (5), and/or is at least arranged on the thin layer on the outside surface of photovoltaic cell (7).
14. for the manufacture of according to the photovoltaic film with three-dimensional 3D effect of the wherein display device described in (1) of claim 1 to 13, it comprises preferably hyaline membrane soft or semihard, and described hyaline membrane is included in the net (5) of the surface element (6,16) that comprises photovoltaic cell (7) at least one surface.
15. photovoltaic films according to claim 14, is characterized in that, described photovoltaic cell (7) is protected by layer protective layer at least, and described protective seam can be continuous or discontinuous.
16. according to the manufacture method of the wherein display device described in (1) of claim 1 to 13, comprising the display device of preparing to comprise smooth outer surface, especially digital display screen, preparation is according to the three-dimensional 3D effect photovoltaic film described in claim 12 or 13, thereby preferably adopt gluing mode to be fixed on described photovoltaic film, forms the display device (1) with stereoscopic three-dimensional effect in described display device.
17. comprise the fixing or mancarried electronic aid according to the wherein display device described in (1) of claim 1 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1100278A FR2971064B1 (en) | 2011-01-31 | 2011-01-31 | PARALLAX BARRIER DISPLAY SCREEN WITH INTEGRATED PHOTOVOLTAIC CELLS AND METHOD FOR MANUFACTURING THE SAME |
| FR1100278 | 2011-01-31 | ||
| PCT/FR2012/000037 WO2012104502A1 (en) | 2011-01-31 | 2012-01-30 | Stereoscopic 3d display screen with integrated photovoltaic cells, and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103688210A true CN103688210A (en) | 2014-03-26 |
Family
ID=44501793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280007282.7A Pending CN103688210A (en) | 2011-01-31 | 2012-01-30 | Stereoscopic 3D display screen with integrated photovoltaic cells, and production method thereof |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2014509404A (en) |
| KR (1) | KR20140022803A (en) |
| CN (1) | CN103688210A (en) |
| FR (1) | FR2971064B1 (en) |
| WO (1) | WO2012104502A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114846369A (en) * | 2019-12-23 | 2022-08-02 | 3M创新有限公司 | High transmittance light control film |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3006106B1 (en) * | 2013-05-23 | 2016-09-02 | Wysips | THIN FILM PHOTOVOLTAIC DEVICE USING A MONO CELL |
| FR3009132B1 (en) * | 2013-07-29 | 2016-11-25 | Wysips | DISPLAY DEVICE WITH INTEGRATED PHOTOVOLTAIC CELL WITH IMPROVED BRIGHTNESS |
| DE102014005834A1 (en) * | 2014-04-19 | 2015-04-23 | Audi Ag | Driver assistance system for a motor vehicle |
| FR3020473B1 (en) * | 2014-04-25 | 2018-01-12 | Sunpartner Technologies | INTEGRATED PHOTOVOLTAIC CELL DISPLAY DEVICE WITH IMPROVED BRIGHTNESS AND REFLECTIVITY |
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2011
- 2011-01-31 FR FR1100278A patent/FR2971064B1/en not_active Expired - Fee Related
-
2012
- 2012-01-30 WO PCT/FR2012/000037 patent/WO2012104502A1/en active Application Filing
- 2012-01-30 JP JP2013550928A patent/JP2014509404A/en active Pending
- 2012-01-30 KR KR1020137023089A patent/KR20140022803A/en not_active Application Discontinuation
- 2012-01-30 CN CN201280007282.7A patent/CN103688210A/en active Pending
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|---|---|---|---|---|
| CN114846369A (en) * | 2019-12-23 | 2022-08-02 | 3M创新有限公司 | High transmittance light control film |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140022803A (en) | 2014-02-25 |
| FR2971064B1 (en) | 2015-12-18 |
| WO2012104502A1 (en) | 2012-08-09 |
| JP2014509404A (en) | 2014-04-17 |
| FR2971064A1 (en) | 2012-08-03 |
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Application publication date: 20140326 |